Adding upstream version 1.22.4.upstream/1.22.4

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

62 files changed, 35978 insertions, 0 deletions

diff --git a/src/Makefile.am b/src/Makefile.am
new file mode 100644
index 0000000..31d1a9e
--- /dev/null
+++ b/src/Makefile.am
@@ -0,0 +1,180 @@
+## Process this file with automake to produce Makefile.in
+
+AM_CPPFLAGS = \
+	-DLOCALEDIR=\"$(localedir)\" \
+	-DADMINDIR=\"$(admindir)\" \
+	-idirafter $(top_srcdir)/lib/compat \
+	-I$(top_builddir) \
+	-I$(top_srcdir)/lib \
+	-I$(srcdir)/common \
+	# EOL
+LDADD = \
+	../lib/dpkg/libdpkg.la \
+	$(LIBINTL) \
+	../lib/compat/libcompat.la \
+	# EOL
+
+EXTRA_DIST =
+CLEANFILES =
+DISTCLEANFILES =
+
+nobase_dist_pkgdata_DATA = \
+	sh/dpkg-error.sh \
+	# EOL
+
+bin_PROGRAMS = \
+	dpkg \
+	dpkg-deb \
+	dpkg-divert \
+	dpkg-query \
+	dpkg-split \
+	dpkg-statoverride \
+	dpkg-trigger \
+	# EOL
+
+bin_SCRIPTS = \
+	dpkg-maintscript-helper \
+	dpkg-realpath \
+	# EOL
+
+pkglibexec_SCRIPTS = \
+	dpkg-db-backup \
+	dpkg-db-keeper \
+	# EOL
+
+EXTRA_DIST += \
+	dpkg-db-backup.sh \
+	dpkg-db-keeper.sh \
+	dpkg-maintscript-helper.sh \
+	dpkg-realpath.sh \
+	# EOL
+
+CLEANFILES += \
+	$(bin_SCRIPTS) \
+	$(pkglibexec_SCRIPTS) \
+	# EOL
+
+dpkg_SOURCES = \
+	common/actions.h \
+	common/force.c \
+	common/force.h \
+	common/security-mac.h \
+	common/selinux.c \
+	main/archives.c \
+	main/archives.h \
+	main/cleanup.c \
+	main/configure.c \
+	main/depcon.c \
+	main/enquiry.c \
+	main/errors.c \
+	main/file-match.c \
+	main/file-match.h \
+	main/filters.c \
+	main/filters.h \
+	main/help.c \
+	main/main.c \
+	main/main.h \
+	main/packages.c \
+	main/perpkgstate.c \
+	main/remove.c \
+	main/script.c \
+	main/select.c \
+	main/trigproc.c \
+	main/unpack.c \
+	main/update.c \
+	main/verify.c \
+	# EOL
+
+dpkg_LDADD = \
+	$(LDADD) \
+	$(SELINUX_LIBS) \
+	# EOL
+
+dpkg_deb_SOURCES = \
+	deb/dpkg-deb.h \
+	deb/build.c \
+	deb/extract.c \
+	deb/info.c \
+	deb/main.c \
+	# EOL
+
+dpkg_deb_LDADD = \
+	$(LDADD) \
+	$(Z_LIBS) \
+	$(LZMA_LIBS) \
+	$(ZSTD_LIBS) \
+	$(BZ2_LIBS) \
+	# EOL
+
+dpkg_divert_SOURCES = \
+	divert/main.c \
+	# EOL
+
+dpkg_query_SOURCES = \
+	common/actions.h \
+	query/main.c \
+	# EOL
+
+dpkg_split_SOURCES = \
+	split/dpkg-split.h \
+	split/info.c \
+	split/join.c \
+	split/main.c \
+	split/queue.c \
+	split/split.c \
+	# EOL
+
+dpkg_statoverride_SOURCES = \
+	common/actions.h \
+	common/force.c \
+	common/force.h \
+	common/security-mac.h \
+	common/selinux.c \
+	statoverride/main.c \
+	# EOL
+
+dpkg_statoverride_LDADD = \
+	$(LDADD) \
+	$(SELINUX_LIBS) \
+	# EOL
+
+dpkg_trigger_SOURCES = \
+	trigger/main.c \
+	# EOL
+
+SUFFIXES =
+
+include $(top_srcdir)/build-aux/subst.am
+
+install-data-local:
+	$(MKDIR_P) $(DESTDIR)$(pkgconfdir)/dpkg.cfg.d
+	$(MKDIR_P) $(DESTDIR)$(admindir)/info
+	$(MKDIR_P) $(DESTDIR)$(admindir)/parts
+	$(MKDIR_P) $(DESTDIR)$(admindir)/updates
+
+EXTRA_DIST += $(srcdir)/at/atlocal.in
+EXTRA_DIST += $(srcdir)/at/package.m4
+
+TESTSUITE_AT = $(srcdir)/at/testsuite.at
+TESTSUITE_AT += $(srcdir)/at/local.at
+TESTSUITE_AT += $(srcdir)/at/deb-format.at
+TESTSUITE_AT += $(srcdir)/at/deb-fields.at
+TESTSUITE_AT += $(srcdir)/at/deb-content.at
+TESTSUITE_AT += $(srcdir)/at/deb-split.at
+TESTSUITE_AT += $(srcdir)/at/realpath.at
+TESTSUITE_AT += $(srcdir)/at/divert.at
+TESTSUITE_AT += $(srcdir)/at/chdir.at
+EXTRA_DIST += $(TESTSUITE_AT)
+
+TESTSUITE = $(srcdir)/at/testsuite
+EXTRA_DIST += $(TESTSUITE)
+
+DISTCLEANFILES += at/atconfig
+
+include $(top_srcdir)/build-aux/autotest.am
+
+check-local: autotest-check
+
+installcheck-local: autotest-installcheck
+
+clean-local: autotest-clean
diff --git a/src/Makefile.in b/src/Makefile.in
new file mode 100644
index 0000000..88b2456
--- /dev/null
+++ b/src/Makefile.in
@@ -0,0 +1,1411 @@
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+DSYMUTIL = @DSYMUTIL@
+DUMPBIN = @DUMPBIN@
+ECHO_C = @ECHO_C@
+ECHO_N = @ECHO_N@
+ECHO_T = @ECHO_T@
+EGREP = @EGREP@
+ETAGS = @ETAGS@
+EXEEXT = @EXEEXT@
+FGREP = @FGREP@
+FILECMD = @FILECMD@
+GCOV = @GCOV@
+GETTEXT_MACRO_VERSION = @GETTEXT_MACRO_VERSION@
+GMSGFMT = @GMSGFMT@
+GMSGFMT_015 = @GMSGFMT_015@
+GREP = @GREP@
+HAVE_DOT = @HAVE_DOT@
+INSTALL = @INSTALL@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+INTLLIBS = @INTLLIBS@
+INTL_MACOSX_LIBS = @INTL_MACOSX_LIBS@
+KVM_LIBS = @KVM_LIBS@
+LCOV = @LCOV@
+LCOV_GENHTML = @LCOV_GENHTML@
+LD = @LD@
+LDFLAGS = @LDFLAGS@
+LIBICONV = @LIBICONV@
+LIBINTL = @LIBINTL@
+LIBOBJS = @LIBOBJS@
+LIBS = @LIBS@
+LIBTOOL = @LIBTOOL@
+LIPO = @LIPO@
+LN_S = @LN_S@
+LTLIBICONV = @LTLIBICONV@
+LTLIBINTL = @LTLIBINTL@
+LTLIBOBJS = @LTLIBOBJS@
+LT_SYS_LIBRARY_PATH = @LT_SYS_LIBRARY_PATH@
+LZMA_LIBS = @LZMA_LIBS@
+MAKEINFO = @MAKEINFO@
+MANIFEST_TOOL = @MANIFEST_TOOL@
+MD_LIBS = @MD_LIBS@
+MKDIR_P = @MKDIR_P@
+MSGFMT = @MSGFMT@
+MSGMERGE = @MSGMERGE@
+MSGMERGE_FOR_MSGFMT_OPTION = @MSGMERGE_FOR_MSGFMT_OPTION@
+NM = @NM@
+NMEDIT = @NMEDIT@
+OBJDUMP = @OBJDUMP@
+OBJEXT = @OBJEXT@
+OTOOL = @OTOOL@
+OTOOL64 = @OTOOL64@
+PACKAGE = @PACKAGE@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+PACKAGE_BUG_WEB = @PACKAGE_BUG_WEB@
+PACKAGE_COPYRIGHT_HOLDER = @PACKAGE_COPYRIGHT_HOLDER@
+PACKAGE_CPAN_NAME = @PACKAGE_CPAN_NAME@
+PACKAGE_DIST_IS_RELEASE = @PACKAGE_DIST_IS_RELEASE@
+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_RELEASE_DATE = @PACKAGE_RELEASE_DATE@
+PACKAGE_STRING = @PACKAGE_STRING@
+PACKAGE_TARNAME = @PACKAGE_TARNAME@
+PACKAGE_URL = @PACKAGE_URL@
+PACKAGE_VCS_TYPE = @PACKAGE_VCS_TYPE@
+PACKAGE_VCS_URL = @PACKAGE_VCS_URL@
+PACKAGE_VCS_WEB = @PACKAGE_VCS_WEB@
+PACKAGE_VERSION = @PACKAGE_VERSION@
+PATCH = @PATCH@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+PERL = @PERL@
+PERL_COVER = @PERL_COVER@
+PERL_COVERAGE = @PERL_COVERAGE@
+PERL_LIBDIR = @PERL_LIBDIR@
+PERL_MIN_VERSION = @PERL_MIN_VERSION@
+PKG_CONFIG = @PKG_CONFIG@
+PKG_CONFIG_LIBDIR = @PKG_CONFIG_LIBDIR@
+PKG_CONFIG_PATH = @PKG_CONFIG_PATH@
+PO4A = @PO4A@
+POD2MAN = @POD2MAN@
+POSUB = @POSUB@
+PS_LIBS = @PS_LIBS@
+RANLIB = @RANLIB@
+RT_LIBS = @RT_LIBS@
+SED = @SED@
+SELINUX_CFLAGS = @SELINUX_CFLAGS@
+SELINUX_LIBS = @SELINUX_LIBS@
+SET_MAKE = @SET_MAKE@
+SHELL = @SHELL@
+SOCKET_LIBS = @SOCKET_LIBS@
+STRIP = @STRIP@
+TAR = @TAR@
+USE_NLS = @USE_NLS@
+USE_PO4A = @USE_PO4A@
+USE_UNICODE = @USE_UNICODE@
+VERSION = @VERSION@
+XGETTEXT = @XGETTEXT@
+XGETTEXT_015 = @XGETTEXT_015@
+XGETTEXT_EXTRA_OPTIONS = @XGETTEXT_EXTRA_OPTIONS@
+ZSTD_LIBS = @ZSTD_LIBS@
+Z_LIBS = @Z_LIBS@
+Z_NG_LIBS = @Z_NG_LIBS@
+abs_builddir = @abs_builddir@
+abs_srcdir = @abs_srcdir@
+abs_top_builddir = @abs_top_builddir@
+abs_top_srcdir = @abs_top_srcdir@
+ac_ct_AR = @ac_ct_AR@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_CXX = @ac_ct_CXX@
+ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
+admindir = @admindir@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
+am__tar = @am__tar@
+am__untar = @am__untar@
+backupsdir = @backupsdir@
+bindir = @bindir@
+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_os = @build_os@
+build_vendor = @build_vendor@
+builddir = @builddir@
+datadir = @datadir@
+datarootdir = @datarootdir@
+devlibdir = @devlibdir@
+docdir = @docdir@
+dvidir = @dvidir@
+exec_prefix = @exec_prefix@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+htmldir = @htmldir@
+includedir = @includedir@
+infodir = @infodir@
+install_sh = @install_sh@
+libdir = @libdir@
+libexecdir = @libexecdir@
+localedir = @localedir@
+localstatedir = @localstatedir@
+logdir = @logdir@
+mandir = @mandir@
+mkdir_p = @mkdir_p@
+oldincludedir = @oldincludedir@
+pdfdir = @pdfdir@
+pkgconfdir = @pkgconfdir@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+runstatedir = @runstatedir@
+sbindir = @sbindir@
+sharedstatedir = @sharedstatedir@
+srcdir = @srcdir@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+zshcompletionsdir = @zshcompletionsdir@
+AM_CPPFLAGS = \
+	-DLOCALEDIR=\"$(localedir)\" \
+	-DADMINDIR=\"$(admindir)\" \
+	-idirafter $(top_srcdir)/lib/compat \
+	-I$(top_builddir) \
+	-I$(top_srcdir)/lib \
+	-I$(srcdir)/common \
+	# EOL
+
+LDADD = \
+	../lib/dpkg/libdpkg.la \
+	$(LIBINTL) \
+	../lib/compat/libcompat.la \
+	# EOL
+
+EXTRA_DIST = dpkg-db-backup.sh dpkg-db-keeper.sh \
+	dpkg-maintscript-helper.sh dpkg-realpath.sh \
+	$(srcdir)/at/atlocal.in $(srcdir)/at/package.m4 \
+	$(TESTSUITE_AT) $(TESTSUITE) $(srcdir)/at/package.m4
+CLEANFILES = $(bin_SCRIPTS) $(pkglibexec_SCRIPTS) # EOL
+DISTCLEANFILES = at/atconfig at/atconfig
+nobase_dist_pkgdata_DATA = \
+	sh/dpkg-error.sh \
+	# EOL
+
+bin_SCRIPTS = \
+	dpkg-maintscript-helper \
+	dpkg-realpath \
+	# EOL
+
+pkglibexec_SCRIPTS = \
+	dpkg-db-backup \
+	dpkg-db-keeper \
+	# EOL
+
+dpkg_SOURCES = \
+	common/actions.h \
+	common/force.c \
+	common/force.h \
+	common/security-mac.h \
+	common/selinux.c \
+	main/archives.c \
+	main/archives.h \
+	main/cleanup.c \
+	main/configure.c \
+	main/depcon.c \
+	main/enquiry.c \
+	main/errors.c \
+	main/file-match.c \
+	main/file-match.h \
+	main/filters.c \
+	main/filters.h \
+	main/help.c \
+	main/main.c \
+	main/main.h \
+	main/packages.c \
+	main/perpkgstate.c \
+	main/remove.c \
+	main/script.c \
+	main/select.c \
+	main/trigproc.c \
+	main/unpack.c \
+	main/update.c \
+	main/verify.c \
+	# EOL
+
+dpkg_LDADD = \
+	$(LDADD) \
+	$(SELINUX_LIBS) \
+	# EOL
+
+dpkg_deb_SOURCES = \
+	deb/dpkg-deb.h \
+	deb/build.c \
+	deb/extract.c \
+	deb/info.c \
+	deb/main.c \
+	# EOL
+
+dpkg_deb_LDADD = \
+	$(LDADD) \
+	$(Z_LIBS) \
+	$(LZMA_LIBS) \
+	$(ZSTD_LIBS) \
+	$(BZ2_LIBS) \
+	# EOL
+
+dpkg_divert_SOURCES = \
+	divert/main.c \
+	# EOL
+
+dpkg_query_SOURCES = \
+	common/actions.h \
+	query/main.c \
+	# EOL
+
+dpkg_split_SOURCES = \
+	split/dpkg-split.h \
+	split/info.c \
+	split/join.c \
+	split/main.c \
+	split/queue.c \
+	split/split.c \
+	# EOL
+
+dpkg_statoverride_SOURCES = \
+	common/actions.h \
+	common/force.c \
+	common/force.h \
+	common/security-mac.h \
+	common/selinux.c \
+	statoverride/main.c \
+	# EOL
+
+dpkg_statoverride_LDADD = \
+	$(LDADD) \
+	$(SELINUX_LIBS) \
+	# EOL
+
+dpkg_trigger_SOURCES = \
+	trigger/main.c \
+	# EOL
+
+SUFFIXES = .sh .pl
+do_shell_subst = $(AM_V_GEN) $(SED) \
+	-e "s:^ADMINDIR=.*$$:ADMINDIR='$(admindir)':" \
+	-e "s:^BACKUPSDIR=.*$$:BACKUPSDIR='$(backupsdir)':" \
+	-e "s:^PKGDATADIR_DEFAULT=.*$$:PKGDATADIR_DEFAULT='$(pkgdatadir)':" \
+	-e "s:^version=['\"][^'\"]*[\"']:version=\"$(PACKAGE_VERSION)\":" \
+	-e "s:^TAR=.*$$:TAR='$(TAR)':" \
+	# EOL
+
+
+# Perl support.
+do_perl_subst = $(AM_V_GEN) $(SED) \
+	-e "s:^\#![[:space:]]*/usr/bin/perl:\#!$(PERL):" \
+	-e "s:our \$$CONFDIR = .*;:our \$$CONFDIR = '$(pkgconfdir)';:" \
+	-e "s:our \$$ADMINDIR = .*;:our \$$ADMINDIR = '$(admindir)';:" \
+	-e "s:our \$$LIBDIR = .*;:our \$$LIBDIR = '$(pkglibexecdir)';:" \
+	-e "s:our \$$DATADIR = .*;:our \$$DATADIR = '$(pkgdatadir)';:" \
+	-e "s:our \$$PROGMAKE = .*;:our \$$PROGMAKE = '$(MAKE)';:" \
+	-e "s:our \$$PROGTAR = .*;:our \$$PROGTAR = '$(TAR)';:" \
+	-e "s:our \$$PROGPATCH = .*;:our \$$PROGPATCH = '$(PATCH)';:" \
+	-e "s:our \$$PROGVERSION = .*;:our \$$PROGVERSION = '$(PACKAGE_VERSION)';:" \
+	# EOL
+
+
+# Makefile support.
+do_make_subst = $(AM_V_GEN) $(SED) \
+	-e "s:dpkg_datadir[[:space:]]*=[[:space:]]*[^[:space:]]*:dpkg_datadir = $(pkgdatadir):" \
+	# EOL
+
+TESTSUITE_AT = $(srcdir)/at/testsuite.at $(srcdir)/at/local.at \
+	$(srcdir)/at/deb-format.at $(srcdir)/at/deb-fields.at \
+	$(srcdir)/at/deb-content.at $(srcdir)/at/deb-split.at \
+	$(srcdir)/at/realpath.at $(srcdir)/at/divert.at \
+	$(srcdir)/at/chdir.at
+TESTSUITE = $(srcdir)/at/testsuite
+AUTOTEST_DEPS = at/atconfig at/atlocal $(TESTSUITE)
+AUTOTEST = $(AUTOM4TE) --language=autotest
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .sh .pl .c .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am $(top_srcdir)/build-aux/subst.am $(top_srcdir)/build-aux/autotest.am $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign src/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign src/Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles);; \
+	esac;
+$(top_srcdir)/build-aux/subst.am $(top_srcdir)/build-aux/autotest.am $(am__empty):
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+install-binPROGRAMS: $(bin_PROGRAMS)
+	@$(NORMAL_INSTALL)
+	@list='$(bin_PROGRAMS)'; test -n "$(bindir)" || list=; \
+	if test -n "$$list"; then \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(bindir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(bindir)" || exit 1; \
+	fi; \
+	for p in $$list; do echo "$$p $$p"; done | \
+	sed 's/$(EXEEXT)$$//' | \
+	while read p p1; do if test -f $$p \
+	 || test -f $$p1 \
+	  ; then echo "$$p"; echo "$$p"; else :; fi; \
+	done | \
+	sed -e 'p;s,.*/,,;n;h' \
+	    -e 's|.*|.|' \
+	    -e 'p;x;s,.*/,,;s/$(EXEEXT)$$//;$(transform);s/$$/$(EXEEXT)/' | \
+	sed 'N;N;N;s,\n, ,g' | \
+	$(AWK) 'BEGIN { files["."] = ""; dirs["."] = 1 } \
+	  { d=$$3; if (dirs[d] != 1) { print "d", d; dirs[d] = 1 } \
+	    if ($$2 == $$4) files[d] = files[d] " " $$1; \
+	    else { print "f", $$3 "/" $$4, $$1; } } \
+	  END { for (d in files) print "f", d, files[d] }' | \
+	while read type dir files; do \
+	    if test "$$dir" = .; then dir=; else dir=/$$dir; fi; \
+	    test -z "$$files" || { \
+	    echo " $(INSTALL_PROGRAM_ENV) $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL_PROGRAM) $$files '$(DESTDIR)$(bindir)$$dir'"; \
+	    $(INSTALL_PROGRAM_ENV) $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL_PROGRAM) $$files "$(DESTDIR)$(bindir)$$dir" || exit $$?; \
+	    } \
+	; done
+
+uninstall-binPROGRAMS:
+	@$(NORMAL_UNINSTALL)
+	@list='$(bin_PROGRAMS)'; test -n "$(bindir)" || list=; \
+	files=`for p in $$list; do echo "$$p"; done | \
+	  sed -e 'h;s,^.*/,,;s/$(EXEEXT)$$//;$(transform)' \
+	      -e 's/$$/$(EXEEXT)/' \
+	`; \
+	test -n "$$list" || exit 0; \
+	echo " ( cd '$(DESTDIR)$(bindir)' && rm -f" $$files ")"; \
+	cd "$(DESTDIR)$(bindir)" && rm -f $$files
+
+clean-binPROGRAMS:
+	@list='$(bin_PROGRAMS)'; test -n "$$list" || exit 0; \
+	echo " rm -f" $$list; \
+	rm -f $$list || exit $$?; \
+	test -n "$(EXEEXT)" || exit 0; \
+	list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \
+	echo " rm -f" $$list; \
+	rm -f $$list
+common/$(am__dirstamp):
+	@$(MKDIR_P) common
+	@: > common/$(am__dirstamp)
+common/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) common/$(DEPDIR)
+	@: > common/$(DEPDIR)/$(am__dirstamp)
+common/force.$(OBJEXT): common/$(am__dirstamp) \
+	common/$(DEPDIR)/$(am__dirstamp)
+common/selinux.$(OBJEXT): common/$(am__dirstamp) \
+	common/$(DEPDIR)/$(am__dirstamp)
+main/$(am__dirstamp):
+	@$(MKDIR_P) main
+	@: > main/$(am__dirstamp)
+main/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) main/$(DEPDIR)
+	@: > main/$(DEPDIR)/$(am__dirstamp)
+main/archives.$(OBJEXT): main/$(am__dirstamp) \
+	main/$(DEPDIR)/$(am__dirstamp)
+main/cleanup.$(OBJEXT): main/$(am__dirstamp) \
+	main/$(DEPDIR)/$(am__dirstamp)
+main/configure.$(OBJEXT): main/$(am__dirstamp) \
+	main/$(DEPDIR)/$(am__dirstamp)
+main/depcon.$(OBJEXT): main/$(am__dirstamp) \
+	main/$(DEPDIR)/$(am__dirstamp)
+main/enquiry.$(OBJEXT): main/$(am__dirstamp) \
+	main/$(DEPDIR)/$(am__dirstamp)
+main/errors.$(OBJEXT): main/$(am__dirstamp) \
+	main/$(DEPDIR)/$(am__dirstamp)
+main/file-match.$(OBJEXT): main/$(am__dirstamp) \
+	main/$(DEPDIR)/$(am__dirstamp)
+main/filters.$(OBJEXT): main/$(am__dirstamp) \
+	main/$(DEPDIR)/$(am__dirstamp)
+main/help.$(OBJEXT): main/$(am__dirstamp) \
+	main/$(DEPDIR)/$(am__dirstamp)
+main/main.$(OBJEXT): main/$(am__dirstamp) \
+	main/$(DEPDIR)/$(am__dirstamp)
+main/packages.$(OBJEXT): main/$(am__dirstamp) \
+	main/$(DEPDIR)/$(am__dirstamp)
+main/perpkgstate.$(OBJEXT): main/$(am__dirstamp) \
+	main/$(DEPDIR)/$(am__dirstamp)
+main/remove.$(OBJEXT): main/$(am__dirstamp) \
+	main/$(DEPDIR)/$(am__dirstamp)
+main/script.$(OBJEXT): main/$(am__dirstamp) \
+	main/$(DEPDIR)/$(am__dirstamp)
+main/select.$(OBJEXT): main/$(am__dirstamp) \
+	main/$(DEPDIR)/$(am__dirstamp)
+main/trigproc.$(OBJEXT): main/$(am__dirstamp) \
+	main/$(DEPDIR)/$(am__dirstamp)
+main/unpack.$(OBJEXT): main/$(am__dirstamp) \
+	main/$(DEPDIR)/$(am__dirstamp)
+main/update.$(OBJEXT): main/$(am__dirstamp) \
+	main/$(DEPDIR)/$(am__dirstamp)
+main/verify.$(OBJEXT): main/$(am__dirstamp) \
+	main/$(DEPDIR)/$(am__dirstamp)
+
+dpkg$(EXEEXT): $(dpkg_OBJECTS) $(dpkg_DEPENDENCIES) $(EXTRA_dpkg_DEPENDENCIES) 
+	@rm -f dpkg$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(dpkg_OBJECTS) $(dpkg_LDADD) $(LIBS)
+deb/$(am__dirstamp):
+	@$(MKDIR_P) deb
+	@: > deb/$(am__dirstamp)
+deb/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) deb/$(DEPDIR)
+	@: > deb/$(DEPDIR)/$(am__dirstamp)
+deb/build.$(OBJEXT): deb/$(am__dirstamp) deb/$(DEPDIR)/$(am__dirstamp)
+deb/extract.$(OBJEXT): deb/$(am__dirstamp) \
+	deb/$(DEPDIR)/$(am__dirstamp)
+deb/info.$(OBJEXT): deb/$(am__dirstamp) deb/$(DEPDIR)/$(am__dirstamp)
+deb/main.$(OBJEXT): deb/$(am__dirstamp) deb/$(DEPDIR)/$(am__dirstamp)
+
+dpkg-deb$(EXEEXT): $(dpkg_deb_OBJECTS) $(dpkg_deb_DEPENDENCIES) $(EXTRA_dpkg_deb_DEPENDENCIES) 
+	@rm -f dpkg-deb$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(dpkg_deb_OBJECTS) $(dpkg_deb_LDADD) $(LIBS)
+divert/$(am__dirstamp):
+	@$(MKDIR_P) divert
+	@: > divert/$(am__dirstamp)
+divert/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) divert/$(DEPDIR)
+	@: > divert/$(DEPDIR)/$(am__dirstamp)
+divert/main.$(OBJEXT): divert/$(am__dirstamp) \
+	divert/$(DEPDIR)/$(am__dirstamp)
+
+dpkg-divert$(EXEEXT): $(dpkg_divert_OBJECTS) $(dpkg_divert_DEPENDENCIES) $(EXTRA_dpkg_divert_DEPENDENCIES) 
+	@rm -f dpkg-divert$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(dpkg_divert_OBJECTS) $(dpkg_divert_LDADD) $(LIBS)
+query/$(am__dirstamp):
+	@$(MKDIR_P) query
+	@: > query/$(am__dirstamp)
+query/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) query/$(DEPDIR)
+	@: > query/$(DEPDIR)/$(am__dirstamp)
+query/main.$(OBJEXT): query/$(am__dirstamp) \
+	query/$(DEPDIR)/$(am__dirstamp)
+
+dpkg-query$(EXEEXT): $(dpkg_query_OBJECTS) $(dpkg_query_DEPENDENCIES) $(EXTRA_dpkg_query_DEPENDENCIES) 
+	@rm -f dpkg-query$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(dpkg_query_OBJECTS) $(dpkg_query_LDADD) $(LIBS)
+split/$(am__dirstamp):
+	@$(MKDIR_P) split
+	@: > split/$(am__dirstamp)
+split/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) split/$(DEPDIR)
+	@: > split/$(DEPDIR)/$(am__dirstamp)
+split/info.$(OBJEXT): split/$(am__dirstamp) \
+	split/$(DEPDIR)/$(am__dirstamp)
+split/join.$(OBJEXT): split/$(am__dirstamp) \
+	split/$(DEPDIR)/$(am__dirstamp)
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+	split/$(DEPDIR)/$(am__dirstamp)
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+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am: install-data-local install-nobase_dist_pkgdataDATA
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-binPROGRAMS install-binSCRIPTS \
+	install-pkglibexecSCRIPTS
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am: installcheck-local
+
+maintainer-clean: maintainer-clean-am
+		-rm -f common/$(DEPDIR)/force.Po
+	-rm -f common/$(DEPDIR)/selinux.Po
+	-rm -f deb/$(DEPDIR)/build.Po
+	-rm -f deb/$(DEPDIR)/extract.Po
+	-rm -f deb/$(DEPDIR)/info.Po
+	-rm -f deb/$(DEPDIR)/main.Po
+	-rm -f divert/$(DEPDIR)/main.Po
+	-rm -f main/$(DEPDIR)/archives.Po
+	-rm -f main/$(DEPDIR)/cleanup.Po
+	-rm -f main/$(DEPDIR)/configure.Po
+	-rm -f main/$(DEPDIR)/depcon.Po
+	-rm -f main/$(DEPDIR)/enquiry.Po
+	-rm -f main/$(DEPDIR)/errors.Po
+	-rm -f main/$(DEPDIR)/file-match.Po
+	-rm -f main/$(DEPDIR)/filters.Po
+	-rm -f main/$(DEPDIR)/help.Po
+	-rm -f main/$(DEPDIR)/main.Po
+	-rm -f main/$(DEPDIR)/packages.Po
+	-rm -f main/$(DEPDIR)/perpkgstate.Po
+	-rm -f main/$(DEPDIR)/remove.Po
+	-rm -f main/$(DEPDIR)/script.Po
+	-rm -f main/$(DEPDIR)/select.Po
+	-rm -f main/$(DEPDIR)/trigproc.Po
+	-rm -f main/$(DEPDIR)/unpack.Po
+	-rm -f main/$(DEPDIR)/update.Po
+	-rm -f main/$(DEPDIR)/verify.Po
+	-rm -f query/$(DEPDIR)/main.Po
+	-rm -f split/$(DEPDIR)/info.Po
+	-rm -f split/$(DEPDIR)/join.Po
+	-rm -f split/$(DEPDIR)/main.Po
+	-rm -f split/$(DEPDIR)/queue.Po
+	-rm -f split/$(DEPDIR)/split.Po
+	-rm -f statoverride/$(DEPDIR)/main.Po
+	-rm -f trigger/$(DEPDIR)/main.Po
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-binPROGRAMS uninstall-binSCRIPTS \
+	uninstall-nobase_dist_pkgdataDATA uninstall-pkglibexecSCRIPTS
+
+.MAKE: check-am install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-am \
+	check-local clean clean-binPROGRAMS clean-generic \
+	clean-libtool clean-local cscopelist-am ctags ctags-am \
+	distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-binPROGRAMS \
+	install-binSCRIPTS install-data install-data-am \
+	install-data-local install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-nobase_dist_pkgdataDATA \
+	install-pdf install-pdf-am install-pkglibexecSCRIPTS \
+	install-ps install-ps-am install-strip installcheck \
+	installcheck-am installcheck-local installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags tags-am uninstall uninstall-am \
+	uninstall-binPROGRAMS uninstall-binSCRIPTS \
+	uninstall-nobase_dist_pkgdataDATA uninstall-pkglibexecSCRIPTS
+
+.PRECIOUS: Makefile
+
+
+.sh: Makefile
+	@test -d `dirname $@` || $(MKDIR_P) `dirname $@`
+	$(do_shell_subst) <$< >$@
+	$(AM_V_at) chmod +x $@
+
+.pl: Makefile
+	@test -d `dirname $@` || $(MKDIR_P) `dirname $@`
+	$(do_perl_subst) <$< >$@
+	$(AM_V_at) chmod +x $@
+
+install-data-local:
+	$(MKDIR_P) $(DESTDIR)$(pkgconfdir)/dpkg.cfg.d
+	$(MKDIR_P) $(DESTDIR)$(admindir)/info
+	$(MKDIR_P) $(DESTDIR)$(admindir)/parts
+	$(MKDIR_P) $(DESTDIR)$(admindir)/updates
+
+# The ":;" works around a Bash 3.2 bug when the output is not writable.
+$(srcdir)/at/package.m4: $(top_srcdir)/configure.ac
+	:;{ \
+	  echo '# Signature of the current package.' && \
+	  echo 'm4_define([AT_PACKAGE_NAME], [$(PACKAGE_NAME)])' && \
+	  echo 'm4_define([AT_PACKAGE_TARNAME], [$(PACKAGE_TARNAME)])' && \
+	  echo 'm4_define([AT_PACKAGE_VERSION], [$(PACKAGE_VERSION)])' && \
+	  echo 'm4_define([AT_PACKAGE_STRING], [$(PACKAGE_STRING)])' && \
+	  echo 'm4_define([AT_PACKAGE_URL], [$(PACKAGE_URL)])' && \
+	  echo 'm4_define([AT_PACKAGE_BUGREPORT], [$(PACKAGE_BUGREPORT)])'; \
+	} >'$(srcdir)/at/package.m4'
+
+autotest-check: $(AUTOTEST_DEPS)
+	$(SHELL) '$(TESTSUITE)' -C at $(TESTSUITEFLAGS)
+
+autotest-installcheck: $(AUTOTEST_DEPS)
+	$(SHELL) '$(TESTSUITE)' -C at AUTOTEST_PATH='$(bindir)' $(TESTSUITEFLAGS)
+
+autotest-clean:
+	test ! -f '$(TESTSUITE)' || $(SHELL) '$(TESTSUITE)' -C at --clean
+$(TESTSUITE): $(srcdir)/at/package.m4 $(TESTSUITE_AT)
+	$(AUTOTEST) -I '$(srcdir)/at' -o $@.tmp $@.at
+	mv $@.tmp $@
+
+check-local: autotest-check
+
+installcheck-local: autotest-installcheck
+
+clean-local: autotest-clean
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/src/at/atlocal.in b/src/at/atlocal.in
new file mode 100644
index 0000000..8b413ef
--- /dev/null
+++ b/src/at/atlocal.in
@@ -0,0 +1,40 @@
+# Global shell definitions for the autotest test suite
+
+PATH="@abs_top_builddir@/src:$PATH"
+export PATH
+
+GREP="@GREP@"
+EGREP="@EGREP@"
+TAR="@TAR@"
+PERL="@PERL@"
+
+if ! command -v lzma >/dev/null && command -v xz >/dev/null; then
+  lzma() {
+    xz --format=lzma "$@"
+  }
+fi
+
+# Setup a sane environment
+
+umask 0022
+
+LC_ALL=C
+export LC_ALL
+
+TZ=UTC0
+export TZ
+
+SOURCE_DATE_EPOCH=0
+export SOURCE_DATE_EPOCH
+
+prefix="@prefix@"
+eval "export DEFAULT_ADMINDIR='@admindir@'"
+export DPKG_DATADIR="@abs_top_srcdir@/src"
+
+# Cleanup variables that might affect the tests.
+unset GZIP
+unset BZIP
+unset XZ_OPT
+unset XZ_DEFAULTS
+
+unset DPKG_ROOT
diff --git a/src/at/chdir.at b/src/at/chdir.at
new file mode 100644
index 0000000..ec9299f
--- /dev/null
+++ b/src/at/chdir.at
@@ -0,0 +1,491 @@
+#
+# Test commands with --root, --instdir and --admindir.
+#
+
+m4_foreach_w([CMD], [dpkg dpkg-divert dpkg-statoverride], [
+  m4_define([CMD_PRINT_DIRS], [DPKG_DEBUG=1 CMD --version])
+
+  AT_SETUP([CMD chdir opts])
+  AT_KEYWORDS([CMD command-line chdir])
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  AT_CHECK_UNQUOTED(
+    [CMD_PRINT_DIRS --root=/rootdir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+])
+  AT_CHECK_UNQUOTED(
+    [CMD_PRINT_DIRS --admindir=/admindir_opt],
+    [], [ignore],
+    [D000001: root=$DEFAULT_ROOTDIR admindir=/admindir_opt
+])
+  AT_CHECK_UNQUOTED(
+    [CMD_PRINT_DIRS --instdir=/instdir_opt],
+    [], [ignore],
+    [D000001: root=/instdir_opt admindir=$DEFAULT_ADMINDIR
+])
+  AT_CHECK(
+    [CMD_PRINT_DIRS --root=/rootdir_opt --admindir=/admindir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/admindir_opt
+])
+  AT_CHECK_UNQUOTED(
+    [CMD_PRINT_DIRS --admindir=/admindir_opt --root=/rootdir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+])
+  AT_CHECK_UNQUOTED(
+    [CMD_PRINT_DIRS --root=/rootdir_opt --instdir=/instdir_opt],
+    [], [ignore],
+    [D000001: root=/instdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+])
+  AT_CHECK_UNQUOTED(
+    [CMD_PRINT_DIRS --instdir=/instdir_opt --root=/rootdir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+])
+  AT_CHECK(
+    [CMD_PRINT_DIRS --instdir=/instdir_opt --admindir=/admindir_opt],
+    [], [ignore],
+    [D000001: root=/instdir_opt admindir=/admindir_opt
+])
+  AT_CHECK(
+    [CMD_PRINT_DIRS --admindir=/admindir_opt --instdir=/instdir_opt],
+    [], [ignore],
+    [D000001: root=/instdir_opt admindir=/admindir_opt
+])
+  AT_CHECK(
+    [CMD_PRINT_DIRS --root=/rootdir_opt --admindir=/admindir_opt --instdir=/instdir_opt],
+    [], [ignore],
+    [D000001: root=/instdir_opt admindir=/admindir_opt
+])
+  AT_CHECK_UNQUOTED(
+    [CMD_PRINT_DIRS --admindir=/admindir_opt --instdir=/instdir_opt --root=/rootdir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+])
+
+  AT_CLEANUP
+
+  AT_SETUP([CMD chdir env])
+  AT_KEYWORDS([CMD command-line chdir])
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  AT_CHECK_UNQUOTED(
+    [DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS],
+    [], [ignore],
+    [D000001: root=$DEFAULT_ROOTDIR admindir=/admindir_env
+])
+  AT_CHECK_UNQUOTED(
+    [DPKG_ROOT=/rootdir_env \
+     CMD_PRINT_DIRS],
+    [], [ignore],
+    [D000001: root=/rootdir_env admindir=/rootdir_env$DEFAULT_ADMINDIR
+])
+  AT_CHECK(
+    [DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS],
+    [], [ignore],
+    [D000001: root=/rootdir_env admindir=/admindir_env
+])
+
+  AT_CLEANUP
+
+  AT_SETUP([CMD chdir env+opt admindir])
+  AT_KEYWORDS([CMD command-line chdir])
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  AT_CHECK_UNQUOTED(
+    [DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --root=/rootdir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+])
+  AT_CHECK_UNQUOTED(
+    [DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --admindir=/admindir_opt],
+    [], [ignore],
+    [D000001: root=$DEFAULT_ROOTDIR admindir=/admindir_opt
+])
+  AT_CHECK_UNQUOTED(
+    [DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --instdir=/instdir_opt],
+    [], [ignore],
+    [D000001: root=/instdir_opt admindir=/admindir_env
+])
+  AT_CHECK(
+    [DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --root=/rootdir_opt --admindir=/admindir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/admindir_opt
+])
+  AT_CHECK_UNQUOTED(
+    [DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --admindir=/admindir_opt --root=/rootdir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+])
+  AT_CHECK_UNQUOTED(
+    [DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --root=/rootdir_opt --instdir=/instdir_opt],
+    [], [ignore],
+    [D000001: root=/instdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+])
+  AT_CHECK_UNQUOTED(
+    [DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --instdir=/instdir_opt --root=/rootdir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+])
+  AT_CHECK(
+    [DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --instdir=/instdir_opt --admindir=/admindir_opt],
+    [], [ignore],
+    [D000001: root=/instdir_opt admindir=/admindir_opt
+])
+  AT_CHECK(
+    [DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --admindir=/admindir_opt --instdir=/instdir_opt],
+    [], [ignore],
+    [D000001: root=/instdir_opt admindir=/admindir_opt
+])
+  AT_CHECK(
+    [DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --root=/rootdir_opt --admindir=/admindir_opt --instdir=/instdir_opt],
+    [], [ignore],
+    [D000001: root=/instdir_opt admindir=/admindir_opt
+])
+  AT_CHECK_UNQUOTED(
+    [DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --admindir=/admindir_opt --instdir=/instdir_opt --root=/rootdir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+])
+
+  AT_CLEANUP
+
+  AT_SETUP([CMD chdir env+opt root])
+  AT_KEYWORDS([CMD command-line chdir])
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  AT_CHECK_UNQUOTED(
+    [DPKG_ROOT=/rootdir_env \
+     CMD_PRINT_DIRS --root=/rootdir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+])
+  AT_CHECK(
+    [DPKG_ROOT=/rootdir_env \
+     CMD_PRINT_DIRS --admindir=/admindir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_env admindir=/admindir_opt
+])
+  AT_CHECK_UNQUOTED(
+    [DPKG_ROOT=/rootdir_env \
+     CMD_PRINT_DIRS --instdir=/instdir_opt],
+    [], [ignore],
+    [D000001: root=/instdir_opt admindir=/rootdir_env$DEFAULT_ADMINDIR
+])
+  AT_CHECK(
+    [DPKG_ROOT=/rootdir_env \
+     CMD_PRINT_DIRS --root=/rootdir_opt --admindir=/admindir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/admindir_opt
+])
+  AT_CHECK_UNQUOTED(
+    [DPKG_ROOT=/rootdir_env \
+     CMD_PRINT_DIRS --admindir=/admindir_opt --root=/rootdir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+])
+  AT_CHECK_UNQUOTED(
+    [DPKG_ROOT=/rootdir_env \
+     CMD_PRINT_DIRS --root=/rootdir_opt --instdir=/instdir_opt],
+    [], [ignore],
+    [D000001: root=/instdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+])
+  AT_CHECK_UNQUOTED(
+    [DPKG_ROOT=/rootdir_env \
+     CMD_PRINT_DIRS --instdir=/instdir_opt --root=/rootdir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+])
+  AT_CHECK(
+    [DPKG_ROOT=/rootdir_env \
+     CMD_PRINT_DIRS --instdir=/instdir_opt --admindir=/admindir_opt],
+    [], [ignore],
+    [D000001: root=/instdir_opt admindir=/admindir_opt
+])
+  AT_CHECK(
+    [DPKG_ROOT=/rootdir_env \
+     CMD_PRINT_DIRS --admindir=/admindir_opt --instdir=/instdir_opt],
+    [], [ignore],
+    [D000001: root=/instdir_opt admindir=/admindir_opt
+])
+  AT_CHECK(
+    [DPKG_ROOT=/rootdir_env \
+     CMD_PRINT_DIRS --root=/rootdir_opt --admindir=/admindir_opt --instdir=/instdir_opt],
+    [], [ignore],
+    [D000001: root=/instdir_opt admindir=/admindir_opt
+])
+  AT_CHECK_UNQUOTED(
+    [DPKG_ROOT=/rootdir_env \
+     CMD_PRINT_DIRS --admindir=/admindir_opt --instdir=/instdir_opt --root=/rootdir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+])
+
+  AT_CLEANUP
+
+  AT_SETUP([CMD chdir env+opt root+admindir])
+  AT_KEYWORDS([CMD command-line chdir])
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  AT_CHECK_UNQUOTED(
+    [DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --root=/rootdir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+])
+  AT_CHECK(
+    [DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --admindir=/admindir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_env admindir=/admindir_opt
+])
+  AT_CHECK_UNQUOTED(
+    [DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --instdir=/instdir_opt],
+    [], [ignore],
+    [D000001: root=/instdir_opt admindir=/admindir_env
+])
+  AT_CHECK(
+    [DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --root=/rootdir_opt --admindir=/admindir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/admindir_opt
+])
+  AT_CHECK_UNQUOTED(
+    [DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --admindir=/admindir_opt --root=/rootdir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+])
+  AT_CHECK_UNQUOTED(
+    [DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --root=/rootdir_opt --instdir=/instdir_opt],
+    [], [ignore],
+    [D000001: root=/instdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+])
+  AT_CHECK_UNQUOTED(
+    [DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --instdir=/instdir_opt --root=/rootdir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+])
+  AT_CHECK(
+    [DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --instdir=/instdir_opt --admindir=/admindir_opt],
+    [], [ignore],
+    [D000001: root=/instdir_opt admindir=/admindir_opt
+])
+  AT_CHECK(
+    [DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --admindir=/admindir_opt --instdir=/instdir_opt],
+    [], [ignore],
+    [D000001: root=/instdir_opt admindir=/admindir_opt
+])
+  AT_CHECK(
+    [DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --root=/rootdir_opt --admindir=/admindir_opt --instdir=/instdir_opt],
+    [], [ignore],
+    [D000001: root=/instdir_opt admindir=/admindir_opt
+])
+  AT_CHECK_UNQUOTED(
+    [DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --admindir=/admindir_opt --instdir=/instdir_opt --root=/rootdir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+])
+
+  AT_CLEANUP
+])
+
+#
+# Test commands with only --root and --admindir.
+#
+
+m4_foreach_w([CMD], [dpkg-split dpkg-query dpkg-trigger], [
+  m4_define([CMD_PRINT_DIRS], [DPKG_DEBUG=1 CMD --version])
+
+  AT_SETUP([CMD chdir opts])
+  AT_KEYWORDS([CMD command-line chdir])
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  AT_CHECK_UNQUOTED(
+    [CMD_PRINT_DIRS --root=/rootdir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+])
+
+  AT_CHECK_UNQUOTED(
+    [CMD_PRINT_DIRS --admindir=/admindir_opt],
+    [], [ignore],
+    [D000001: root=$DEFAULT_ROOTDIR admindir=/admindir_opt
+])
+
+  AT_CHECK_UNQUOTED(
+    [CMD_PRINT_DIRS --root=/rootdir_opt --admindir=/admindir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/admindir_opt
+])
+
+  AT_CHECK_UNQUOTED(
+    [CMD_PRINT_DIRS --admindir=/admindir_opt --root=/rootdir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+])
+
+  AT_CLEANUP
+
+  AT_SETUP([CMD chdir env])
+  AT_KEYWORDS([CMD command-line chdir])
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  AT_CHECK_UNQUOTED(
+    [DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS],
+    [], [ignore],
+    [D000001: root=$DEFAULT_ROOTDIR admindir=/admindir_env
+])
+
+  AT_CHECK_UNQUOTED(
+    [DPKG_ROOT=/rootdir_env \
+     CMD_PRINT_DIRS],
+    [], [ignore],
+    [D000001: root=/rootdir_env admindir=/rootdir_env$DEFAULT_ADMINDIR
+])
+
+  AT_CHECK(
+    [DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS],
+    [], [ignore],
+    [D000001: root=/rootdir_env admindir=/admindir_env
+])
+
+  AT_CLEANUP
+
+  AT_SETUP([CMD chdir env+opt admindir])
+  AT_KEYWORDS([CMD command-line chdir])
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  AT_CHECK_UNQUOTED(
+    [DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --root=/rootdir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+])
+  AT_CHECK_UNQUOTED(
+    [DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --admindir=/admindir_opt],
+    [], [ignore],
+    [D000001: root=$DEFAULT_ROOTDIR admindir=/admindir_opt
+])
+  AT_CHECK(
+    [DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --root=/rootdir_opt --admindir=/admindir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/admindir_opt
+])
+  AT_CHECK_UNQUOTED(
+    [DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --admindir=/admindir_opt --root=/rootdir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+])
+
+  AT_CLEANUP
+
+  AT_SETUP([CMD chdir env+opt root])
+  AT_KEYWORDS([CMD command-line chdir])
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  AT_CHECK_UNQUOTED(
+    [DPKG_ROOT=/rootdir_env \
+     CMD_PRINT_DIRS --root=/rootdir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+])
+  AT_CHECK(
+    [DPKG_ROOT=/rootdir_env \
+     CMD_PRINT_DIRS --admindir=/admindir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_env admindir=/admindir_opt
+])
+  AT_CHECK(
+    [DPKG_ROOT=/rootdir_env \
+     CMD_PRINT_DIRS --root=/rootdir_opt --admindir=/admindir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/admindir_opt
+])
+  AT_CHECK_UNQUOTED(
+    [DPKG_ROOT=/rootdir_env \
+     CMD_PRINT_DIRS --admindir=/admindir_opt --root=/rootdir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+])
+
+  AT_CLEANUP
+
+  AT_SETUP([CMD chdir env+opt root+admindir])
+  AT_KEYWORDS([CMD command-line chdir])
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  AT_CHECK_UNQUOTED(
+    [DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --root=/rootdir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+])
+  AT_CHECK(
+    [DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --admindir=/admindir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_env admindir=/admindir_opt
+])
+  AT_CHECK(
+    [DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --root=/rootdir_opt --admindir=/admindir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/admindir_opt
+])
+  AT_CHECK_UNQUOTED(
+    [DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     CMD_PRINT_DIRS --admindir=/admindir_opt --root=/rootdir_opt],
+    [], [ignore],
+    [D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+])
+
+  AT_CLEANUP
+])
diff --git a/src/at/deb-content.at b/src/at/deb-content.at
new file mode 100644
index 0000000..f475603
--- /dev/null
+++ b/src/at/deb-content.at
@@ -0,0 +1,129 @@
+AT_SETUP([dpkg-deb .deb conffiles])
+AT_KEYWORDS([dpkg-deb deb conffiles])
+
+DPKG_GEN_CONTROL([pkg-conff-duped])
+DPKG_GEN_CTRL_FILE([pkg-conff-duped], [conffiles], [/test-conffile-1
+/test-conffile-2
+/test-conffile-1])
+AT_DATA([pkg-conff-duped/test-conffile-1], [test init
+])
+AT_DATA([pkg-conff-duped/test-conffile-2], [test init
+])
+AT_CHECK([
+# Duplicate conffile entries should produce a warning.
+dpkg-deb -b pkg-conff-duped
+], [0], [ignore], [dpkg-deb: warning: conffile name '/test-conffile-1' is duplicated
+dpkg-deb: warning: ignoring 1 warning about the control file(s)
+])
+
+DPKG_GEN_CONTROL([pkg-conff-noeol])
+printf "/test-conffile-1" >"pkg-conff-noeol/DEBIAN/conffiles"
+AT_DATA([pkg-conff-noeol/test-conffile-1], [test init
+])
+AT_CHECK([
+# Conffiles need a final newline to guarantee there's been no accidental
+# file truncation.
+dpkg-deb -b pkg-conff-noeol pkg-conff-noeol.deb
+], [2], [ignore], [dpkg-deb: error: conffile name '/test-conffile-1' is too long, or missing final newline
+])
+
+DPKG_GEN_CONTROL([pkg-conff-noabs])
+DPKG_GEN_CTRL_FILE([pkg-conff-noabs], [conffiles], [test-conffile-rel])
+AT_DATA([pkg-conff-noabs/test-conffile-rel], [test init
+])
+AT_CHECK([
+# Conffiles must use absolute pathnames.
+dpkg-deb -b pkg-conff-noabs pkg-conff-noabs.deb
+], [2], [ignore], [dpkg-deb: error: conffile name 'test-conffile-rel' is not an absolute pathname
+])
+
+DPKG_GEN_CONTROL([pkg-conff-empty])
+printf "   \n" >"pkg-conff-empty/DEBIAN/conffiles"
+AT_CHECK([
+# Conffiles must not contain empty lines.
+dpkg-deb -b pkg-conff-empty pkg-conff-empty.deb
+], [2], [ignore], [dpkg-deb: error: empty and whitespace-only lines are not allowed in conffiles
+])
+
+DPKG_GEN_CONTROL([pkg-conff-space-prefix])
+DPKG_GEN_CTRL_FILE([pkg-conff-space-prefix], [conffiles], [ /test-conffile])
+AT_CHECK([
+# Conffiles must not contain prefixed spaces.
+dpkg-deb -b pkg-conff-space-prefix pkg-conff-space-prefix.deb
+], [2], [ignore], [dpkg-deb: error: line with conffile filename '/test-conffile' has leading white spaces
+])
+
+DPKG_GEN_CONTROL([pkg-conff-unknown-flag])
+DPKG_GEN_CTRL_FILE([pkg-conff-unknown-flag], [conffiles], [unknown-flag /test-conffile])
+AT_CHECK([
+# Conffiles marked with an unknown flag.
+dpkg-deb -b pkg-conff-unknown-flag pkg-conff-unknown-flag.deb
+], [2], [ignore], [dpkg-deb: error: unknown flag 'unknown-flag' for conffile '/test-conffile'
+])
+
+DPKG_GEN_CONTROL([pkg-conff-missing-pathname])
+printf "unknown-flag \n" >"pkg-conff-missing-pathname/DEBIAN/conffiles"
+AT_CHECK([
+# Conffiles need a pathname, in addition to a flag.
+dpkg-deb -b pkg-conff-missing-pathname pkg-conff-missing-pathname.deb
+], [2], [ignore], [dpkg-deb: error: conffile name missing after flag 'unknown-flag'
+])
+
+DPKG_GEN_CONTROL([pkg-conff-removed-missing])
+DPKG_GEN_CTRL_FILE([pkg-conff-removed-missing], [conffiles], [remove-on-upgrade /test-conffile-missing])
+AT_CHECK([
+# Conffiles marked for removal must not be present.
+dpkg-deb -b pkg-conff-removed-missing pkg-conff-removed-missing.deb
+], [0], [ignore], [])
+
+DPKG_GEN_CONTROL([pkg-conff-removed-duped])
+DPKG_GEN_CTRL_FILE([pkg-conff-removed-duped], [conffiles], [remove-on-upgrade /test-conffile-1
+remove-on-upgrade /test-conffile-2
+remove-on-upgrade /test-conffile-1])
+AT_CHECK([
+# Duplicate conffile entries should produce a warning.
+dpkg-deb -b pkg-conff-removed-duped
+], [0], [ignore], [dpkg-deb: warning: conffile name '/test-conffile-1' is duplicated
+dpkg-deb: warning: ignoring 1 warning about the control file(s)
+])
+
+DPKG_GEN_CONTROL([pkg-conff-removed-noeol])
+printf "remove-on-upgrade /test-conffile-1" >"pkg-conff-removed-noeol/DEBIAN/conffiles"
+AT_CHECK([
+# Conffiles need a final newline to guarantee there has been no accidental
+# file truncation.
+dpkg-deb -b pkg-conff-removed-noeol pkg-conff-removed-noeol.deb
+], [2], [ignore], [dpkg-deb: error: conffile name 'remove-on-upgrade /test-conffile-1' is too long, or missing final newline
+])
+
+DPKG_GEN_CONTROL([pkg-conff-removed-noabs])
+DPKG_GEN_CTRL_FILE([pkg-conff-removed-noabs], [conffiles], [remove-on-upgrade test-conffile-rel])
+AT_DATA([pkg-conff-removed-noabs/test-conffile-rel], [test init
+])
+AT_CHECK([
+# Conffiles must use absolute pathnames.
+dpkg-deb -b pkg-conff-removed-noabs pkg-conff-removed-noabs.deb
+], [2], [ignore], [dpkg-deb: error: conffile name 'test-conffile-rel' is not an absolute pathname
+])
+
+DPKG_GEN_CONTROL([pkg-conff-removed-present])
+DPKG_GEN_CTRL_FILE([pkg-conff-removed-present], [conffiles], [remove-on-upgrade /test-conffile-present])
+AT_DATA([pkg-conff-removed-present/test-conffile-present], [test init
+])
+AT_CHECK([
+# Conffiles marked for removal must not be present.
+dpkg-deb -b pkg-conff-removed-present pkg-conff-removed-present.deb
+], [2], [ignore], [dpkg-deb: error: conffile '/test-conffile-present' is present but is requested to be removed
+])
+
+DPKG_GEN_CONTROL([pkg-deb-newline])
+touch 'pkg-deb-newline/file
+newline'
+AT_CHECK([
+# Cannot create package with newlines in filenames.
+dpkg-deb -b pkg-deb-newline
+], [2], [ignore], [dpkg-deb: error: newline not allowed in pathname './file
+newline'
+])
+
+AT_CLEANUP
diff --git a/src/at/deb-fields.at b/src/at/deb-fields.at
new file mode 100644
index 0000000..ccc733a
--- /dev/null
+++ b/src/at/deb-fields.at
@@ -0,0 +1,53 @@
+AT_SETUP([dpkg-deb .deb fields])
+AT_KEYWORDS([dpkg-deb deb fields])
+
+DPKG_GEN_CONTROL([pkg-package-type-void])
+AT_CHECK([
+dpkg-deb -b pkg-package-type-void
+# Test absence of Package-Type field.
+test -z "$(dpkg-deb -f pkg-package-type-void.deb Package-Type)"
+], [0], [ignore])
+
+DPKG_GEN_CONTROL([pkg-package-type-use])
+DPKG_MOD_CONTROL([pkg-package-type-use],
+  [s/^Package: .*$/$&\nPackage-Type: udeb/])
+AT_CHECK([
+dpkg-deb -b pkg-package-type-use
+# Test presence of Package-Type field.
+test -n "$(dpkg-deb -f pkg-package-type-use.deb Package-Type)"
+], [0], [ignore])
+
+DPKG_GEN_CONTROL([pkg-obsolete-fields])
+DPKG_MOD_CONTROL([pkg-obsolete-fields],
+  [s/^Priority:/Class:/])
+DPKG_MOD_CONTROL([pkg-obsolete-fields],
+  [s/^Version: 0.0-1$/Version: 0.0/])
+DPKG_MOD_CONTROL([pkg-obsolete-fields],
+  [s/^Version:.*$/$&\nRevision: 1/])
+DPKG_MOD_CONTROL([pkg-obsolete-fields],
+  [s/^Package:.*$/$&\nOptional: suggests/])
+DPKG_MOD_CONTROL([pkg-obsolete-fields],
+  [s/^Package:.*$/$&\nRecommended: recommends/])
+AT_CHECK([
+dpkg-deb -b pkg-obsolete-fields
+], [0], [ignore],
+[dpkg-deb: warning: parsing file 'pkg-obsolete-fields/DEBIAN/control' near line 2 package 'pkg-obsolete-fields':
+ obsolete 'Recommended' field used
+dpkg-deb: warning: parsing file 'pkg-obsolete-fields/DEBIAN/control' near line 3 package 'pkg-obsolete-fields':
+ obsolete 'Optional' field used
+dpkg-deb: warning: parsing file 'pkg-obsolete-fields/DEBIAN/control' near line 5 package 'pkg-obsolete-fields':
+ obsolete 'Revision' field used
+dpkg-deb: warning: parsing file 'pkg-obsolete-fields/DEBIAN/control' near line 7 package 'pkg-obsolete-fields':
+ obsolete 'Class' field used
+dpkg-deb: warning: ignoring 4 warnings about the control file(s)
+])
+AT_CHECK([
+dpkg-deb -f pkg-obsolete-fields.deb \
+  Version Recommends Suggests Priority 2>/dev/null
+], [0], [Version: 0.0-1
+Recommends: recommends
+Suggests: suggests
+Priority: extra
+])
+
+AT_CLEANUP
diff --git a/src/at/deb-format.at b/src/at/deb-format.at
new file mode 100644
index 0000000..e67ee10
--- /dev/null
+++ b/src/at/deb-format.at
@@ -0,0 +1,666 @@
+AT_SETUP([dpkg-deb options])
+AT_KEYWORDS([dpkg-deb command-line])
+
+AT_CHECK([dpkg-deb --version], [], [ignore])
+AT_CHECK([dpkg-deb --help], [], [ignore])
+
+AT_CLEANUP
+
+
+AT_SETUP([dpkg-deb .deb format 0.93x])
+AT_KEYWORDS([dpkg-deb deb-old])
+
+AT_SKIP_IF([! command -v gzip >/dev/null])
+
+AT_DATA([pkg-deb-old-bogus-only-version.deb], [0.93
+])
+AT_CHECK([
+# Check truncated old deb w/ only version magic
+dpkg-deb --info pkg-deb-old-bogus-only-version.deb
+], [2], [], [dpkg-deb: error: unexpected end of file in archive control member size in pkg-deb-old-bogus-only-version.deb
+])
+
+DPKG_GEN_CONTROL([pkg-deb-old-format])
+DPKG_MOD_CONTROL([pkg-deb-old-format],
+                 [s/^Description:.*$/$& - deb old format support/])
+AT_DATA([pkg-deb-old-format/file-templ], [test
+])
+AT_CHECK([
+# Initialize the template package
+mv pkg-deb-old-format pkg-old-templ
+cp $top_srcdir/ChangeLog.old pkg-old-templ/
+chmod 0644 pkg-old-templ/ChangeLog.old
+chmod -R u+w pkg-old-templ
+find pkg-old-templ | xargs touch -t 197001010100.00
+dpkg-deb --deb-format=0.939000 --root-owner-group -b pkg-old-templ >/dev/null
+
+dpkg-deb --ctrl-tarfile pkg-old-templ.deb >ctrl.tar
+dpkg-deb --fsys-tarfile pkg-old-templ.deb >fsys.tar
+gzip -n ctrl.tar
+gzip -n fsys.tar
+
+# Create deb-old 0.939
+echo '0.939000' >pkg-old.deb
+DPKG_FILE_SIZE([ctrl.tar.gz]) >>pkg-old.deb
+cat ctrl.tar.gz >>pkg-old.deb
+cat fsys.tar.gz >>pkg-old.deb
+
+# Create deb-old-old-old 0.931
+mkdir -p pkg-old-0931-templ/.DEBIAN
+cp pkg-old-templ/DEBIAN/* pkg-old-0931-templ/.DEBIAN/
+find pkg-old-0931-templ | xargs touch -t 197001010100.00
+$TAR czf ctrl-0931.tar.gz --format=gnu --mtime @0 --clamp-mtime --owner root:0 --group root:0 -C pkg-old-0931-templ .DEBIAN
+
+echo '0.931000' >pkg-old-0931.deb
+DPKG_FILE_SIZE([ctrl-0931.tar.gz]) >>pkg-old-0931.deb
+cat ctrl-0931.tar.gz >>pkg-old-0931.deb
+cat fsys.tar.gz >>pkg-old-0931.deb
+
+# Create deb-old-old template
+mkdir -p pkg-old-0932-templ/DEBIAN
+cp pkg-old-templ/DEBIAN/* pkg-old-0932-templ/DEBIAN/
+find pkg-old-0932-templ | xargs touch -t 197001010100.00
+$TAR czf ctrl-0932.tar.gz --format=gnu --mtime @0 --clamp-mtime --owner root:0 --group root:0 -C pkg-old-0932-templ DEBIAN
+
+# Create deb-old-old 0.932
+echo '0.932000' >pkg-old-0932.deb
+DPKG_FILE_SIZE([ctrl-0932.tar.gz]) >>pkg-old-0932.deb
+cat ctrl-0932.tar.gz >>pkg-old-0932.deb
+cat fsys.tar.gz >>pkg-old-0932.deb
+
+# Create deb-old-old 0.933
+echo '0.933000' >pkg-old-0933.deb
+DPKG_FILE_SIZE([ctrl-0932.tar.gz]) >>pkg-old-0933.deb
+cat ctrl-0932.tar.gz >>pkg-old-0933.deb
+cat fsys.tar.gz >>pkg-old-0933.deb
+])
+
+DEB_OLD_CTRL_SIZE=$(DPKG_FILE_SIZE([ctrl.tar.gz]))
+DEB_OLD_FSYS_SIZE=$(DPKG_FILE_SIZE([fsys.tar.gz]))
+DEB_OLD_SIZE=$(DPKG_FILE_SIZE([pkg-old.deb]))
+
+AT_CHECK_UNQUOTED([
+# Check old package metadata
+dpkg-deb -I pkg-old.deb
+], [], [ old Debian package, version 0.939000.
+ size $DEB_OLD_SIZE bytes: control archive=$DEB_OLD_CTRL_SIZE, main archive=$DEB_OLD_FSYS_SIZE.
+     201 bytes,     7 lines      control
+ Package: pkg-deb-old-format
+ Version: 0.0-1
+ Section: test
+ Priority: extra
+ Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+ Architecture: all
+ Description: test package - deb old format support
+])
+
+DEB_OLD_0931_SIZE=$(DPKG_FILE_SIZE([pkg-old-0931.deb]))
+DEB_OLD_0931_CTRL_SIZE=$(DPKG_FILE_SIZE([ctrl-0931.tar.gz]))
+
+AT_CHECK_UNQUOTED([
+# Check old package metadata
+dpkg-deb -I pkg-old-0931.deb
+], [], [ old Debian package, version 0.931000.
+ size $DEB_OLD_0931_SIZE bytes: control archive=$DEB_OLD_0931_CTRL_SIZE, main archive=$DEB_OLD_FSYS_SIZE.
+     201 bytes,     7 lines      control
+ Package: pkg-deb-old-format
+ Version: 0.0-1
+ Section: test
+ Priority: extra
+ Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+ Architecture: all
+ Description: test package - deb old format support
+])
+
+DEB_OLD_0932_SIZE=$(DPKG_FILE_SIZE([pkg-old-0932.deb]))
+DEB_OLD_0932_CTRL_SIZE=$(DPKG_FILE_SIZE([ctrl-0932.tar.gz]))
+
+AT_CHECK_UNQUOTED([
+# Check old package metadata
+dpkg-deb -I pkg-old-0932.deb
+], [], [ old Debian package, version 0.932000.
+ size $DEB_OLD_0932_SIZE bytes: control archive=$DEB_OLD_0932_CTRL_SIZE, main archive=$DEB_OLD_FSYS_SIZE.
+     201 bytes,     7 lines      control
+ Package: pkg-deb-old-format
+ Version: 0.0-1
+ Section: test
+ Priority: extra
+ Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+ Architecture: all
+ Description: test package - deb old format support
+])
+
+DEB_OLD_0933_SIZE=$(DPKG_FILE_SIZE([pkg-old-0933.deb]))
+DEB_OLD_0933_CTRL_SIZE=$DEB_OLD_0932_CTRL_SIZE
+
+AT_CHECK_UNQUOTED([
+# Check old package metadata
+dpkg-deb -I pkg-old-0933.deb
+], [], [ old Debian package, version 0.933000.
+ size $DEB_OLD_0933_SIZE bytes: control archive=$DEB_OLD_0933_CTRL_SIZE, main archive=$DEB_OLD_FSYS_SIZE.
+     201 bytes,     7 lines      control
+ Package: pkg-deb-old-format
+ Version: 0.0-1
+ Section: test
+ Priority: extra
+ Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+ Architecture: all
+ Description: test package - deb old format support
+])
+
+AT_CHECK([
+# Check old package contents
+dpkg-deb -c pkg-old.deb
+], [], [drwxr-xr-x root/root         0 1970-01-01 00:00 ./
+-rw-r--r-- root/root    641345 1970-01-01 00:00 ./ChangeLog.old
+-rw-r--r-- root/root         5 1970-01-01 00:00 ./file-templ
+])
+
+AT_CHECK([
+# Check old package contents
+dpkg-deb -c pkg-old-0931.deb
+], [], [drwxr-xr-x root/root         0 1970-01-01 00:00 ./
+-rw-r--r-- root/root    641345 1970-01-01 00:00 ./ChangeLog.old
+-rw-r--r-- root/root         5 1970-01-01 00:00 ./file-templ
+])
+
+AT_CHECK([
+# Check old package contents
+dpkg-deb -c pkg-old-0932.deb
+], [], [drwxr-xr-x root/root         0 1970-01-01 00:00 ./
+-rw-r--r-- root/root    641345 1970-01-01 00:00 ./ChangeLog.old
+-rw-r--r-- root/root         5 1970-01-01 00:00 ./file-templ
+])
+
+AT_CHECK([
+# Check old package contents
+dpkg-deb -c pkg-old-0933.deb
+], [], [drwxr-xr-x root/root         0 1970-01-01 00:00 ./
+-rw-r--r-- root/root    641345 1970-01-01 00:00 ./ChangeLog.old
+-rw-r--r-- root/root         5 1970-01-01 00:00 ./file-templ
+])
+
+AT_CLEANUP
+
+m4_define([DPKG_GEN_PKG_DEB_FORMAT_TEMPL], [
+  DPKG_GEN_CONTROL([pkg-deb-format])
+  DPKG_MOD_CONTROL([pkg-deb-format],
+                   [s/^Description:.*$/$& - deb format support/])
+  AT_DATA([pkg-deb-format/file-templ], [test
+])
+  AT_CHECK([
+  # Initialize the template package
+  mv pkg-deb-format pkg-templ
+  cp $top_srcdir/ChangeLog.old pkg-templ/
+  chmod 0644 pkg-templ/ChangeLog.old
+  chmod -R u+w pkg-templ
+  find pkg-templ | xargs touch -t 197001010100.00
+  dpkg-deb --uniform-compression --root-owner-group -Znone -b pkg-templ >/dev/null
+
+  # Extract the base members
+  ar x pkg-templ.deb
+  gzip -cn control.tar >control.tar.gz
+  gzip -cn data.tar >data.tar.gz
+  ])
+])
+
+
+AT_SETUP([dpkg-deb .deb format 2.x (core)])
+AT_KEYWORDS([dpkg-deb deb])
+
+AT_SKIP_IF([! command -v gzip >/dev/null])
+
+AT_DATA([pkg-deb-bogus-empty.deb], [])
+AT_CHECK([
+# Check truncated deb w/ 0 size
+dpkg-deb --info pkg-deb-bogus-empty.deb
+], [2], [], [dpkg-deb: error: unexpected end of file in archive magic version number in pkg-deb-bogus-empty.deb
+])
+
+AT_DATA([unknown], [])
+
+DPKG_GEN_PKG_DEB_FORMAT_TEMPL()
+
+AT_CHECK([
+# Test debian-binary with 2.x versions
+echo 2.999 >debian-binary
+ar qSc pkg-version-2x.deb debian-binary control.tar data.tar
+ar t pkg-version-2x.deb
+ar x pkg-templ.deb debian-binary
+dpkg-deb -I pkg-version-2x.deb
+], [], [debian-binary
+control.tar
+data.tar
+ new Debian package, version 2.999.
+ size 655554 bytes: control archive=10240 bytes.
+     193 bytes,     7 lines      control
+ Package: pkg-deb-format
+ Version: 0.0-1
+ Section: test
+ Priority: extra
+ Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+ Architecture: all
+ Description: test package - deb format support
+])
+
+AT_CHECK([
+# Test debian-binary with extra lines
+echo "extra line" >>debian-binary
+ar qSc pkg-magic-extra.deb debian-binary control.tar data.tar
+ar t pkg-magic-extra.deb
+ar x pkg-templ.deb debian-binary
+dpkg-deb -I pkg-magic-extra.deb
+], [], [debian-binary
+control.tar
+data.tar
+ new Debian package, version 2.0.
+ size 655564 bytes: control archive=10240 bytes.
+     193 bytes,     7 lines      control
+ Package: pkg-deb-format
+ Version: 0.0-1
+ Section: test
+ Priority: extra
+ Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+ Architecture: all
+ Description: test package - deb format support
+])
+
+AT_CHECK([
+# Test missing debian-binary member
+cp pkg-templ.deb pkg-missing-magic.deb
+ar d pkg-missing-magic.deb debian-binary
+ar t pkg-missing-magic.deb
+dpkg-deb -I pkg-missing-magic.deb
+], [2], [control.tar
+data.tar
+], [dpkg-deb: error: file 'pkg-missing-magic.deb' is not a Debian binary archive (try dpkg-split?)
+])
+
+AT_CHECK([
+# Test missing control member
+cp pkg-templ.deb pkg-missing-control.deb
+ar d pkg-missing-control.deb control.tar
+ar t pkg-missing-control.deb
+dpkg-deb -I pkg-missing-control.deb
+], [2], [debian-binary
+data.tar
+], [dpkg-deb: error: archive 'pkg-missing-control.deb' has premature member 'data.tar' before 'control.tar', giving up
+])
+
+AT_CHECK([
+# Test missing data member
+cp pkg-templ.deb pkg-missing-data.deb
+ar d pkg-missing-data.deb data.tar
+ar t pkg-missing-data.deb
+dpkg-deb -c pkg-missing-data.deb
+], [2], [debian-binary
+control.tar
+], [dpkg-deb: error: unexpected end of file in archive member header in pkg-missing-data.deb
+])
+
+AT_CHECK([
+# Test duplicate debian-binary member
+ar qSc pkg-duplicate-magic.deb debian-binary debian-binary control.tar data.tar
+ar t pkg-duplicate-magic.deb
+dpkg-deb -I pkg-duplicate-magic.deb
+], [2], [debian-binary
+debian-binary
+control.tar
+data.tar
+], [dpkg-deb: error: archive 'pkg-duplicate-magic.deb' has premature member 'debian-binary' before 'control.tar', giving up
+])
+
+AT_CHECK([
+# Test duplicate control member
+ar qSc pkg-duplicate-control.deb debian-binary control.tar control.tar data.tar
+ar t pkg-duplicate-control.deb
+dpkg-deb -c pkg-duplicate-control.deb
+], [2], [debian-binary
+control.tar
+control.tar
+data.tar
+], [dpkg-deb: error: archive 'pkg-duplicate-control.deb' contains two control members, giving up
+])
+
+AT_CHECK([
+# Test mixed member (index 1)
+ar qSc pkg-mixed-1-member.deb debian-binary unknown control.tar data.tar
+ar t pkg-mixed-1-member.deb
+dpkg-deb -I pkg-mixed-1-member.deb
+], [2], [debian-binary
+unknown
+control.tar
+data.tar
+], [dpkg-deb: error: archive 'pkg-mixed-1-member.deb' has premature member 'unknown' before 'control.tar', giving up
+])
+
+AT_CHECK([
+# Test mixed member (index 2)
+ar qSc pkg-mixed-2-member.deb debian-binary control.tar unknown data.tar
+ar t pkg-mixed-2-member.deb
+dpkg-deb -c pkg-mixed-2-member.deb
+], [2], [debian-binary
+control.tar
+unknown
+data.tar
+], [dpkg-deb: error: archive 'pkg-mixed-2-member.deb' has premature member 'unknown' before 'data.tar', giving up
+])
+
+AT_CHECK([
+# Test swapped control and data members
+cp pkg-templ.deb pkg-swap-members.deb
+ar ma data.tar pkg-swap-members.deb control.tar
+ar t pkg-swap-members.deb
+dpkg-deb -I pkg-swap-members.deb
+], [2], [debian-binary
+data.tar
+control.tar
+], [dpkg-deb: error: archive 'pkg-swap-members.deb' has premature member 'data.tar' before 'control.tar', giving up
+])
+
+AT_CHECK([
+# Test extra member
+cp pkg-templ.deb pkg-extra-member.deb
+ar qS pkg-extra-member.deb unknown
+ar t pkg-extra-member.deb
+dpkg-deb -I pkg-extra-member.deb
+], [], [debian-binary
+control.tar
+data.tar
+unknown
+ new Debian package, version 2.0.
+ size 655612 bytes: control archive=10240 bytes.
+     193 bytes,     7 lines      control
+ Package: pkg-deb-format
+ Version: 0.0-1
+ Section: test
+ Priority: extra
+ Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+ Architecture: all
+ Description: test package - deb format support
+])
+
+AT_DATA([_ignore], [])
+AT_CHECK([
+# Test _ member
+ar qSc pkg-under-member.deb debian-binary _ignore control.tar data.tar
+ar t pkg-under-member.deb
+dpkg-deb -I pkg-under-member.deb
+], [], [debian-binary
+_ignore
+control.tar
+data.tar
+ new Debian package, version 2.0.
+ size 655612 bytes: control archive=10240 bytes.
+     193 bytes,     7 lines      control
+ Package: pkg-deb-format
+ Version: 0.0-1
+ Section: test
+ Priority: extra
+ Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+ Architecture: all
+ Description: test package - deb format support
+])
+
+AT_CHECK([
+# Test data.tar.bad member
+$PERL -E 'print "\0" x 4096' >data.tar.bad
+ar qSc pkg-data-bad.deb debian-binary control.tar.gz data.tar.bad
+ar t pkg-data-bad.deb
+dpkg-deb -c pkg-data-bad.deb
+], [2], [debian-binary
+control.tar.gz
+data.tar.bad
+], [dpkg-deb: error: archive 'pkg-data-bad.deb' uses unknown compression for member 'data.tar.bad', giving up
+])
+
+AT_CHECK([
+# Test control.tar member
+ar qSc pkg-control-none.deb debian-binary control.tar data.tar
+ar t pkg-control-none.deb
+dpkg-deb -I pkg-control-none.deb
+], [], [debian-binary
+control.tar
+data.tar
+ new Debian package, version 2.0.
+ size 655552 bytes: control archive=10240 bytes.
+     193 bytes,     7 lines      control
+ Package: pkg-deb-format
+ Version: 0.0-1
+ Section: test
+ Priority: extra
+ Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+ Architecture: all
+ Description: test package - deb format support
+])
+
+AT_CHECK([
+# Test data.tar member
+ar qSc pkg-data-none.deb debian-binary control.tar.gz data.tar
+ar t pkg-data-none.deb
+dpkg-deb -c pkg-data-none.deb
+], [], [debian-binary
+control.tar.gz
+data.tar
+drwxr-xr-x root/root         0 1970-01-01 00:00 ./
+-rw-r--r-- root/root    641345 1970-01-01 00:00 ./ChangeLog.old
+-rw-r--r-- root/root         5 1970-01-01 00:00 ./file-templ
+])
+
+AT_CHECK([
+# Test data.tar.gz member
+ar qSc pkg-data-gz.deb debian-binary control.tar.gz data.tar.gz
+ar t pkg-data-gz.deb
+dpkg-deb -c pkg-data-gz.deb
+], [], [debian-binary
+control.tar.gz
+data.tar.gz
+drwxr-xr-x root/root         0 1970-01-01 00:00 ./
+-rw-r--r-- root/root    641345 1970-01-01 00:00 ./ChangeLog.old
+-rw-r--r-- root/root         5 1970-01-01 00:00 ./file-templ
+])
+
+# Create .deb with non-uniform data.tar/control.tar member compression
+ar qSc pkg-mixed-comp.deb debian-binary control.tar data.tar.gz
+DEB_MIXED_COMP_SIZE=$(DPKG_FILE_SIZE([pkg-mixed-comp.deb]))
+
+AT_CHECK_UNQUOTED([
+# Test non-uniform data.tar/control.tar member compression
+ar t pkg-mixed-comp.deb
+dpkg-deb -I pkg-mixed-comp.deb
+dpkg-deb -c pkg-mixed-comp.deb
+], [], [debian-binary
+control.tar
+data.tar.gz
+ new Debian package, version 2.0.
+ size $DEB_MIXED_COMP_SIZE bytes: control archive=10240 bytes.
+     193 bytes,     7 lines      control
+ Package: pkg-deb-format
+ Version: 0.0-1
+ Section: test
+ Priority: extra
+ Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+ Architecture: all
+ Description: test package - deb format support
+drwxr-xr-x root/root         0 1970-01-01 00:00 ./
+-rw-r--r-- root/root    641345 1970-01-01 00:00 ./ChangeLog.old
+-rw-r--r-- root/root         5 1970-01-01 00:00 ./file-templ
+])
+
+AT_CHECK([
+# Test building and extracting none compressed archive
+dpkg-deb --uniform-compression --root-owner-group -Znone -b pkg-templ pkg-comp-none.deb >/dev/null
+dpkg-deb --ctrl-tarfile pkg-comp-none.deb >ctrl-none.tar
+dpkg-deb --fsys-tarfile pkg-comp-none.deb >fsys-none.tar
+cmp ctrl-none.tar control.tar
+cmp fsys-none.tar data.tar
+])
+
+AT_CHECK([
+# Test building and extracting gzip compressed archive
+dpkg-deb --uniform-compression --root-owner-group -Zgzip -b pkg-templ pkg-comp-gzip.deb >/dev/null
+dpkg-deb --ctrl-tarfile pkg-comp-gzip.deb >ctrl-gzip.tar
+dpkg-deb --fsys-tarfile pkg-comp-gzip.deb >fsys-gzip.tar
+cmp ctrl-gzip.tar control.tar
+cmp fsys-gzip.tar data.tar
+])
+
+AT_CLEANUP
+
+
+AT_SETUP([dpkg-deb .deb format 2.x (xz)])
+AT_KEYWORDS([dpkg-deb deb])
+
+AT_SKIP_IF([! command -v gzip >/dev/null])
+AT_SKIP_IF([! command -v xz >/dev/null])
+
+DPKG_GEN_PKG_DEB_FORMAT_TEMPL()
+AT_CHECK([
+# Extract the base members
+xz -c control.tar >control.tar.xz
+xz -c data.tar >data.tar.xz
+])
+
+AT_CHECK([
+# Test control.tar.xz member
+ar qSc pkg-control-xz.deb debian-binary control.tar.xz data.tar.xz
+ar t pkg-control-xz.deb
+dpkg-deb -c pkg-control-xz.deb
+], [], [debian-binary
+control.tar.xz
+data.tar.xz
+drwxr-xr-x root/root         0 1970-01-01 00:00 ./
+-rw-r--r-- root/root    641345 1970-01-01 00:00 ./ChangeLog.old
+-rw-r--r-- root/root         5 1970-01-01 00:00 ./file-templ
+])
+
+AT_CHECK([
+# Test data.tar.xz member
+ar qSc pkg-data-xz.deb debian-binary control.tar.gz data.tar.xz
+ar t pkg-data-xz.deb
+dpkg-deb -c pkg-data-xz.deb
+], [], [debian-binary
+control.tar.gz
+data.tar.xz
+drwxr-xr-x root/root         0 1970-01-01 00:00 ./
+-rw-r--r-- root/root    641345 1970-01-01 00:00 ./ChangeLog.old
+-rw-r--r-- root/root         5 1970-01-01 00:00 ./file-templ
+])
+
+AT_CHECK([
+# Test building and extracting xz compressed archive
+dpkg-deb --uniform-compression --root-owner-group -Zxz -b pkg-templ pkg-comp-xz.deb >/dev/null
+dpkg-deb --ctrl-tarfile pkg-comp-xz.deb >ctrl-xz.tar
+dpkg-deb --fsys-tarfile pkg-comp-xz.deb >fsys-xz.tar
+cmp ctrl-xz.tar control.tar
+cmp fsys-xz.tar data.tar
+])
+
+AT_CLEANUP
+
+
+AT_SETUP([dpkg-deb .deb format 2.x (zstd)])
+AT_KEYWORDS([dpkg-deb deb])
+
+AT_SKIP_IF([! command -v gzip >/dev/null])
+AT_SKIP_IF([! command -v zstd >/dev/null])
+
+DPKG_GEN_PKG_DEB_FORMAT_TEMPL()
+AT_CHECK([
+# Extract the base members
+zstd -c control.tar >control.tar.zst
+zstd -c data.tar >data.tar.zst
+])
+
+AT_CHECK([
+# Test control.tar.zst member
+ar qSc pkg-control-zst.deb debian-binary control.tar.zst data.tar.zst
+ar t pkg-control-zst.deb
+dpkg-deb -c pkg-control-zst.deb
+], [], [debian-binary
+control.tar.zst
+data.tar.zst
+drwxr-xr-x root/root         0 1970-01-01 00:00 ./
+-rw-r--r-- root/root    641345 1970-01-01 00:00 ./ChangeLog.old
+-rw-r--r-- root/root         5 1970-01-01 00:00 ./file-templ
+])
+
+AT_CHECK([
+# Test data.tar.zst member
+ar qSc pkg-data-zst.deb debian-binary control.tar.gz data.tar.zst
+ar t pkg-data-zst.deb
+dpkg-deb -c pkg-data-zst.deb
+], [], [debian-binary
+control.tar.gz
+data.tar.zst
+drwxr-xr-x root/root         0 1970-01-01 00:00 ./
+-rw-r--r-- root/root    641345 1970-01-01 00:00 ./ChangeLog.old
+-rw-r--r-- root/root         5 1970-01-01 00:00 ./file-templ
+])
+
+AT_CHECK([
+# Test building and extracting zstd compressed archive
+dpkg-deb --uniform-compression --root-owner-group -Zzstd -b pkg-templ pkg-comp-zstd.deb >/dev/null
+dpkg-deb --ctrl-tarfile pkg-comp-zstd.deb >ctrl-zstd.tar
+dpkg-deb --fsys-tarfile pkg-comp-zstd.deb >fsys-zstd.tar
+cmp ctrl-zstd.tar control.tar
+cmp fsys-zstd.tar data.tar
+])
+
+AT_CLEANUP
+
+
+AT_SETUP([dpkg-deb .deb format 2.x (bzip2)])
+AT_KEYWORDS([dpkg-deb deb])
+
+AT_SKIP_IF([! command -v gzip >/dev/null])
+AT_SKIP_IF([! command -v bzip2 >/dev/null])
+
+DPKG_GEN_PKG_DEB_FORMAT_TEMPL()
+AT_CHECK([
+# Extract the base members
+bzip2 -c data.tar >data.tar.bz2
+])
+
+AT_CHECK([
+# Test data.tar.bz2 member
+ar qSc pkg-data-bz2.deb debian-binary control.tar.gz data.tar.bz2
+ar t pkg-data-bz2.deb
+dpkg-deb -c pkg-data-bz2.deb
+], [], [debian-binary
+control.tar.gz
+data.tar.bz2
+drwxr-xr-x root/root         0 1970-01-01 00:00 ./
+-rw-r--r-- root/root    641345 1970-01-01 00:00 ./ChangeLog.old
+-rw-r--r-- root/root         5 1970-01-01 00:00 ./file-templ
+])
+
+AT_CLEANUP
+
+
+AT_SETUP([dpkg-deb .deb format 2.x (lzma)])
+AT_KEYWORDS([dpkg-deb deb])
+
+AT_SKIP_IF([! command -v gzip >/dev/null])
+AT_SKIP_IF([! command -v lzma >/dev/null])
+
+DPKG_GEN_PKG_DEB_FORMAT_TEMPL()
+AT_CHECK([
+# Extract the base members
+lzma -c data.tar >data.tar.lzma
+])
+
+AT_CHECK([
+# Test data.tar.lzma member
+ar qSc pkg-data-lzma.deb debian-binary control.tar.gz data.tar.lzma
+ar t pkg-data-lzma.deb
+dpkg-deb -c pkg-data-lzma.deb
+], [], [debian-binary
+control.tar.gz
+data.tar.lzma
+drwxr-xr-x root/root         0 1970-01-01 00:00 ./
+-rw-r--r-- root/root    641345 1970-01-01 00:00 ./ChangeLog.old
+-rw-r--r-- root/root         5 1970-01-01 00:00 ./file-templ
+])
+
+AT_CLEANUP
diff --git a/src/at/deb-split.at b/src/at/deb-split.at
new file mode 100644
index 0000000..69e777b
--- /dev/null
+++ b/src/at/deb-split.at
@@ -0,0 +1,225 @@
+AT_SETUP([dpkg-split options])
+AT_KEYWORDS([dpkg-split command-line])
+
+AT_CHECK([dpkg-split --version], [], [ignore])
+AT_CHECK([dpkg-split --help], [], [ignore])
+
+AT_CLEANUP
+
+AT_SETUP([dpkg-split .deb format])
+AT_KEYWORDS([dpkg-split deb-split])
+
+DPKG_GEN_CONTROL([pkg-split])
+DPKG_MOD_CONTROL([pkg-split],
+                 [s/^Description:.*$/$& - normal package to be split/])
+AT_CHECK([
+# Initialize the template package
+chmod -R u+w pkg-split
+$PERL -E 'print "fade" foreach 1 .. 1024 * 512' >pkg-split/data-file
+find pkg-split | xargs touch -t 197001010100.00
+dpkg-deb --root-owner-group -Znone -b pkg-split >/dev/null
+])
+
+AT_CHECK([
+# Test splitting a package (in 10 parts: 9 * 210 KiB B + 158 KiB)
+dpkg-split -S 210 -s pkg-split.deb pkg-split-part
+for p in DPKG_SEQ([10]); do
+  test -f pkg-split-part.${p}of10.deb
+done
+ar x pkg-split-part.1of10.deb data.1
+], [], [Splitting package pkg-split into 10 parts: 1 2 3 4 5 6 7 8 9 10 done
+])
+
+DEB_SPLIT_MD5SUM=1684b6cdb72bf035ccafd653f307d3da
+DEB_SPLIT_LENGTH=2109632
+DEB_SPLIT_PART_LENGTH=214016
+DEB_SPLIT_PART_SIZE=214222
+DEB_SPLIT_LAST_LENGTH=183488
+DEB_SPLIT_LAST_SIZE=183694
+
+DEB_SPLIT_PART_SIZE_VERSION=$((DEB_SPLIT_PART_SIZE + 2))
+
+AT_CHECK_UNQUOTED([
+# Test debian-split with 2.x version
+ar x pkg-split-part.1of10.deb debian-split
+$PERL -p -i -E 's/.*/2.999/ if $. == 1' debian-split
+ar qSc pkg-split-part-version-2x.deb debian-split data.1
+ar t pkg-split-part-version-2x.deb
+dpkg-split -I pkg-split-part-version-2x.deb
+], [], [debian-split
+data.1
+pkg-split-part-version-2x.deb:
+    Part format version:            2.999
+    Part of package:                pkg-split
+        ... version:                0.0-1
+        ... architecture:           all
+        ... MD5 checksum:           $DEB_SPLIT_MD5SUM
+        ... length:                 $DEB_SPLIT_LENGTH bytes
+        ... split every:            $DEB_SPLIT_PART_LENGTH bytes
+    Part number:                    1/10
+    Part length:                    $DEB_SPLIT_PART_LENGTH bytes
+    Part offset:                    0 bytes
+    Part file size (used portion):  $DEB_SPLIT_PART_SIZE_VERSION bytes
+
+])
+
+DEB_SPLIT_PART_SIZE_MAGIC_EXTRA=$((DEB_SPLIT_PART_SIZE + 10))
+
+AT_CHECK_UNQUOTED([
+# Test debian-split with extra lines
+ar x pkg-split-part.1of10.deb debian-split
+echo "extra line" >>debian-split
+ar qSc pkg-split-part-magic-extra.deb debian-split data.1
+ar t pkg-split-part-magic-extra.deb
+dpkg-split -I pkg-split-part-magic-extra.deb
+], [], [debian-split
+data.1
+pkg-split-part-magic-extra.deb:
+    Part format version:            2.1
+    Part of package:                pkg-split
+        ... version:                0.0-1
+        ... architecture:           all
+        ... MD5 checksum:           $DEB_SPLIT_MD5SUM
+        ... length:                 $DEB_SPLIT_LENGTH bytes
+        ... split every:            $DEB_SPLIT_PART_LENGTH bytes
+    Part number:                    1/10
+    Part length:                    $DEB_SPLIT_PART_LENGTH bytes
+    Part offset:                    0 bytes
+    Part file size (used portion):  $DEB_SPLIT_PART_SIZE_MAGIC_EXTRA bytes
+
+])
+
+AT_CHECK([
+# Test missing debian-split
+cp pkg-split-part.1of10.deb pkg-split-part-missing-magic.deb
+ar d pkg-split-part-missing-magic.deb debian-split
+ar t pkg-split-part-missing-magic.deb
+dpkg-split -I pkg-split-part-missing-magic.deb
+], [], [data.1
+file 'pkg-split-part-missing-magic.deb' is not an archive part
+])
+
+AT_CHECK([
+# Test missing data part member
+cp pkg-split-part.1of10.deb pkg-split-part-missing-data.deb
+ar d pkg-split-part-missing-data.deb data.1
+ar t pkg-split-part-missing-data.deb
+dpkg-split -I pkg-split-part-missing-data.deb
+], [2], [debian-split
+], [dpkg-split: error: unexpected end of file in reading data part member ar header in pkg-split-part-missing-data.deb
+])
+
+AT_CHECK([
+# Test duplicate debian-split member
+ar x pkg-split-part.1of10.deb debian-split data.1
+ar qSc pkg-split-part-duplicate-magic.deb debian-split debian-split data.1
+ar t pkg-split-part-duplicate-magic.deb
+dpkg-split -I pkg-split-part-duplicate-magic.deb
+], [2], [debian-split
+debian-split
+data.1
+], [dpkg-split: error: file 'pkg-split-part-duplicate-magic.deb' is corrupt - second member is not data member
+])
+
+AT_CHECK_UNQUOTED([
+# Test unknown extra member
+cp pkg-split-part.1of10.deb pkg-split-part-extra-member.deb
+echo "some content" >unknown
+ar qS pkg-split-part-extra-member.deb unknown
+ar t pkg-split-part-extra-member.deb
+dpkg-split -I pkg-split-part-extra-member.deb
+], [], [debian-split
+data.1
+unknown
+pkg-split-part-extra-member.deb:
+    Part format version:            2.1
+    Part of package:                pkg-split
+        ... version:                0.0-1
+        ... architecture:           all
+        ... MD5 checksum:           $DEB_SPLIT_MD5SUM
+        ... length:                 $DEB_SPLIT_LENGTH bytes
+        ... split every:            $DEB_SPLIT_PART_LENGTH bytes
+    Part number:                    1/10
+    Part length:                    $DEB_SPLIT_PART_LENGTH bytes
+    Part offset:                    0 bytes
+    Part file size (used portion):  $DEB_SPLIT_PART_SIZE bytes
+
+])
+
+AT_CHECK_UNQUOTED([
+# Test getting information about the split parts (parsing verification)
+dpkg-split -I pkg-split-part.1of10.deb
+], [], [pkg-split-part.1of10.deb:
+    Part format version:            2.1
+    Part of package:                pkg-split
+        ... version:                0.0-1
+        ... architecture:           all
+        ... MD5 checksum:           $DEB_SPLIT_MD5SUM
+        ... length:                 $DEB_SPLIT_LENGTH bytes
+        ... split every:            $DEB_SPLIT_PART_LENGTH bytes
+    Part number:                    1/10
+    Part length:                    $DEB_SPLIT_PART_LENGTH bytes
+    Part offset:                    0 bytes
+    Part file size (used portion):  $DEB_SPLIT_PART_SIZE bytes
+
+])
+AT_CHECK_UNQUOTED([
+# Test getting information about the split parts (parsing verification)
+dpkg-split -I pkg-split-part.2of10.deb
+], [], [pkg-split-part.2of10.deb:
+    Part format version:            2.1
+    Part of package:                pkg-split
+        ... version:                0.0-1
+        ... architecture:           all
+        ... MD5 checksum:           $DEB_SPLIT_MD5SUM
+        ... length:                 $DEB_SPLIT_LENGTH bytes
+        ... split every:            $DEB_SPLIT_PART_LENGTH bytes
+    Part number:                    2/10
+    Part length:                    $DEB_SPLIT_PART_LENGTH bytes
+    Part offset:                    214016 bytes
+    Part file size (used portion):  $DEB_SPLIT_PART_SIZE bytes
+
+])
+AT_CHECK_UNQUOTED([
+# Test getting information about the split parts (parsing verification)
+dpkg-split -I pkg-split-part.9of10.deb
+], [], [pkg-split-part.9of10.deb:
+    Part format version:            2.1
+    Part of package:                pkg-split
+        ... version:                0.0-1
+        ... architecture:           all
+        ... MD5 checksum:           $DEB_SPLIT_MD5SUM
+        ... length:                 $DEB_SPLIT_LENGTH bytes
+        ... split every:            $DEB_SPLIT_PART_LENGTH bytes
+    Part number:                    9/10
+    Part length:                    $DEB_SPLIT_PART_LENGTH bytes
+    Part offset:                    1712128 bytes
+    Part file size (used portion):  $DEB_SPLIT_PART_SIZE bytes
+
+])
+AT_CHECK_UNQUOTED([
+# Test getting information about the split parts (parsing verification)
+dpkg-split -I pkg-split-part.10of10.deb
+], [], [pkg-split-part.10of10.deb:
+    Part format version:            2.1
+    Part of package:                pkg-split
+        ... version:                0.0-1
+        ... architecture:           all
+        ... MD5 checksum:           $DEB_SPLIT_MD5SUM
+        ... length:                 $DEB_SPLIT_LENGTH bytes
+        ... split every:            $DEB_SPLIT_PART_LENGTH bytes
+    Part number:                    10/10
+    Part length:                    $DEB_SPLIT_LAST_LENGTH bytes
+    Part offset:                    1926144 bytes
+    Part file size (used portion):  $DEB_SPLIT_LAST_SIZE bytes
+
+])
+
+AT_CHECK([
+# Test joining the split parts back together
+dpkg-split -o pkg-joined.deb -j pkg-split-part.*.deb
+cmp pkg-split.deb pkg-joined.deb
+], [], [Putting package pkg-split together from 10 parts: 1 2 3 4 5 6 7 8 9 10 done
+])
+
+AT_CLEANUP
diff --git a/src/at/divert.at b/src/at/divert.at
new file mode 100644
index 0000000..667ccaf
--- /dev/null
+++ b/src/at/divert.at
@@ -0,0 +1,639 @@
+AT_SETUP([dpkg-divert options])
+AT_KEYWORDS([dpkg-divert command-line])
+
+DPKG_GEN_FSYS_DIR([/testdir])
+
+AT_CHECK([dpkg-divert --version], [], [ignore])
+AT_CHECK([dpkg-divert --help], [], [ignore])
+
+AT_CHECK([dpkg-divert --admindir], [2], [], [stderr])
+AT_CHECK([$EGREP -q '(takes a value|needs.*argument)' stderr])
+
+AT_CHECK([DPKG_DIVERT --jachsmitbju], [2], [], [stderr])
+AT_CHECK([$GREP -q 'unknown option' stderr])
+
+AT_CHECK([DPKG_DIVERT --add --remove], [2], [], [stderr])
+AT_CHECK([$EGREP -q '(conflicting|two).*remove.*add.*' stderr])
+
+AT_CHECK([DPKG_DIVERT --divert], [2], [], [stderr])
+AT_CHECK([$EGREP -q '(takes a value|needs.*argument)' stderr])
+
+AT_CHECK([DPKG_DIVERT --divert foo], [2], [], [stderr])
+AT_CHECK([$GREP -q 'absolute' stderr])
+
+AT_CHECK([DPKG_DIVERT --divert "/foo
+bar"], [2], [], [stderr])
+AT_CHECK([$GREP -q 'newline' stderr])
+
+AT_CHECK([DPKG_DIVERT --package], [2], [], [stderr])
+AT_CHECK([$EGREP -q '(takes a value|needs.*argument)' stderr])
+
+AT_CHECK([DPKG_DIVERT --package "foo
+bar"], [2], [], [stderr])
+AT_CHECK([$GREP -q 'newline' stderr])
+
+AT_CHECK([DPKG_DIVERT --add], [2], [], [stderr])
+AT_CHECK([$GREP -q 'needs a single argument' stderr])
+
+AT_CHECK([DPKG_DIVERT --add foo], [2], [], [stderr])
+AT_CHECK([$GREP -q 'absolute' stderr])
+
+AT_CHECK([DPKG_DIVERT --add "/foo
+bar"], [2], [], [stderr])
+AT_CHECK([$GREP -q 'newline' stderr])
+
+AT_CHECK([DPKG_DIVERT --add "/testdir"], [2], [], [stderr])
+AT_CHECK([$EGREP -q 'director(y|ies)' stderr])
+
+AT_CHECK([DPKG_DIVERT --add --divert bar /foo/bar], [2], [], [stderr])
+AT_CHECK([$GREP -q 'absolute' stderr])
+
+AT_CHECK([DPKG_DIVERT --remove], [2], [], [stderr])
+AT_CHECK([$GREP -q 'needs a single argument' stderr])
+
+AT_CHECK([DPKG_DIVERT --remove foo], [2], [], [stderr])
+AT_CHECK([$GREP -q 'absolute' stderr])
+
+AT_CHECK([DPKG_DIVERT --remove "/foo
+bar"], [2], [], [stderr])
+AT_CHECK([$GREP -q 'newline' stderr])
+
+AT_CHECK([DPKG_DIVERT --listpackage], [2], [], [stderr])
+AT_CHECK([$GREP -q 'needs a single argument' stderr])
+
+AT_CHECK([DPKG_DIVERT --listpackage foo], [2], [], [stderr])
+AT_CHECK([$GREP -q 'absolute' stderr])
+
+AT_CHECK([DPKG_DIVERT --listpackage "/foo
+bar"], [2], [], [stderr])
+AT_CHECK([$GREP -q 'newline' stderr])
+
+AT_CHECK([DPKG_DIVERT --truename], [2], [], [stderr])
+AT_CHECK([$GREP -q 'needs a single argument' stderr])
+
+AT_CHECK([DPKG_DIVERT --truename foo], [2], [], [stderr])
+AT_CHECK([$GREP -q 'absolute' stderr])
+
+AT_CHECK([DPKG_DIVERT --truename "/foo
+bar"], [2], [], [stderr])
+AT_CHECK([$GREP -q 'newline' stderr])
+
+AT_CLEANUP
+
+AT_SETUP([dpkg-divert query (empty db)])
+AT_KEYWORDS([dpkg-divert query])
+
+DPKG_GEN_DB_DIVERSIONS([])
+
+AT_CHECK([DPKG_DIVERT --list])
+AT_CHECK([DPKG_DIVERT --list '*'])
+AT_CHECK([DPKG_DIVERT --list 'baz'])
+
+AT_CLEANUP
+
+AT_SETUP([dpkg-divert query (list)])
+AT_KEYWORDS([dpkg-divert query])
+
+DPKG_GEN_DB_DIVERSIONS([/bin/sh
+/bin/sh.distrib
+dash
+/usr/share/man/man1/sh.1.gz
+/usr/share/man/man1/sh.distrib.1.gz
+dash
+/usr/bin/nm
+/usr/bin/nm.single
+binutils-multiarch
+])
+
+m4_define([di_dash], [diversion of /bin/sh to /bin/sh.distrib by dash
+])
+m4_define([di_dashman],
+          [diversion of /usr/share/man/man1/sh.1.gz to /usr/share/man/man1/sh.distrib.1.gz by dash
+])
+m4_define([di_nm],
+          [diversion of /usr/bin/nm to /usr/bin/nm.single by binutils-multiarch
+])
+m4_define([all_di], [m4_join([], di_nm, di_dashman, di_dash)])
+
+AT_CHECK([DPKG_DIVERT --list], [], all_di)
+AT_CHECK([DPKG_DIVERT --list '*'], [], all_di)
+AT_CHECK([DPKG_DIVERT --list ''])
+
+AT_CHECK([DPKG_DIVERT --list '???????'], [], di_dash)
+AT_CHECK([DPKG_DIVERT --list '*/sh'], [], di_dash)
+AT_CHECK([DPKG_DIVERT --list '/bin/*'], [], di_dash)
+AT_CHECK([DPKG_DIVERT --list binutils-multiarch], [], di_nm)
+AT_CHECK([DPKG_DIVERT --list /bin/sh], [], di_dash)
+AT_CHECK([DPKG_DIVERT --list -- /bin/sh], [], di_dash)
+AT_CHECK([DPKG_DIVERT --list /usr/bin/nm.single], [], di_nm)
+AT_CHECK([DPKG_DIVERT --list /bin/sh /usr/share/man/man1/sh.1.gz], [],
+         [m4_join([], di_dashman, di_dash)])
+
+AT_CLEANUP
+
+AT_SETUP([dpkg-divert query (listpackage + truename)])
+AT_KEYWORDS([dpkg-divert query])
+
+DPKG_GEN_DB_DIVERSIONS([/bin/sh
+/bin/sh.distrib
+dash
+/bin/true
+/bin/true.coreutils
+:
+])
+
+AT_CHECK([DPKG_DIVERT --listpackage /bin/sh], [], [dash
+])
+AT_CHECK([DPKG_DIVERT --listpackage /bin/true], [], [LOCAL
+])
+AT_CHECK([DPKG_DIVERT --listpackage /bin/false])
+
+AT_CHECK([DPKG_DIVERT --truename /bin/sh], [], [/bin/sh.distrib
+])
+AT_CHECK([DPKG_DIVERT --truename /bin/sh.distrib], [], [/bin/sh.distrib
+])
+AT_CHECK([DPKG_DIVERT --truename /bin/something], [], [/bin/something
+])
+
+AT_CLEANUP
+
+AT_SETUP([dpkg-divert add (local rename)])
+AT_KEYWORDS([dpkg-divert add])
+
+DPKG_GEN_FSYS_FILE([/testdir/foo], [])
+DPKG_GEN_DB_DIVERSIONS([])
+AT_DATA([ref-diversions], [/testdir/foo
+/testdir/foo.distrib
+:
+])
+
+AT_CHECK([DPKG_DIVERT --rename --add /testdir/foo], [], [stdout])
+AT_CHECK([$GREP -q "Adding.*local.*diversion.* /testdir/foo.* /testdir/foo.distrib" stdout])
+DPKG_CHECK_FSYS_PATH_MISSING([/testdir/foo])
+DPKG_CHECK_FSYS_PATH_EXISTS([/testdir/foo.distrib])
+AT_CHECK([diff -u ref-diversions DPKG_DIR_ADMIN/diversions])
+
+AT_CLEANUP
+
+AT_SETUP([dpkg-divert add (local no-rename)])
+AT_KEYWORDS([dpkg-divert add])
+
+DPKG_GEN_FSYS_FILE([/testdir/foo], [])
+DPKG_GEN_DB_DIVERSIONS([])
+AT_DATA([ref-diversions], [/testdir/foo
+/testdir/foo.distrib
+:
+])
+
+AT_CHECK([DPKG_DIVERT --no-rename --add /testdir/foo], [], [stdout])
+AT_CHECK([$GREP -q "Adding.*local.*diversion.* /testdir/foo.* /testdir/foo.distrib" stdout])
+DPKG_CHECK_FSYS_PATH_EXISTS([/testdir/foo])
+DPKG_CHECK_FSYS_PATH_MISSING([/testdir/foo.distrib])
+AT_CHECK([diff -u ref-diversions DPKG_DIR_ADMIN/diversions])
+
+AT_CLEANUP
+
+AT_SETUP([dpkg-divert add (rename quiet)])
+AT_KEYWORDS([dpkg-divert add])
+
+DPKG_GEN_FSYS_FILE([/testdir/foo], [])
+DPKG_GEN_DB_DIVERSIONS([])
+AT_DATA([ref-diversions], [/testdir/foo
+/testdir/foo.distrib
+:
+])
+
+AT_CHECK([DPKG_DIVERT --quiet --rename --add /testdir/foo])
+DPKG_CHECK_FSYS_PATH_MISSING([/testdir/foo])
+DPKG_CHECK_FSYS_PATH_EXISTS([/testdir/foo.distrib])
+AT_CHECK([diff -u ref-diversions DPKG_DIR_ADMIN/diversions])
+
+AT_CLEANUP
+
+AT_SETUP([dpkg-divert add (test rename quiet)])
+AT_KEYWORDS([dpkg-divert add])
+
+DPKG_GEN_FSYS_FILE([/testdir/foo], [])
+DPKG_GEN_DB_DIVERSIONS([])
+
+AT_CHECK([DPKG_DIVERT --quiet --rename --test /testdir/foo])
+DPKG_CHECK_FSYS_PATH_EXISTS([/testdir/foo])
+DPKG_CHECK_FSYS_PATH_MISSING([/testdir/foo.distrib])
+AT_CHECK([cat DPKG_DIR_ADMIN/diversions])
+
+AT_CLEANUP
+
+AT_SETUP([dpkg-divert add (rename missing quiet)])
+AT_KEYWORDS([dpkg-divert add])
+
+DPKG_GEN_FSYS_DIR([/testdir])
+DPKG_GEN_DB_DIVERSIONS([])
+AT_DATA([ref-diversions], [/testdir/foo
+/testdir/foo.distrib
+:
+])
+
+AT_CHECK([DPKG_DIVERT --quiet --rename /testdir/foo])
+DPKG_CHECK_FSYS_PATH_MISSING([/testdir/foo])
+DPKG_CHECK_FSYS_PATH_MISSING([/testdir/foo.distrib])
+AT_CHECK([diff -u ref-diversions DPKG_DIR_ADMIN/diversions])
+
+AT_CLEANUP
+
+AT_SETUP([dpkg-divert add (local rename quiet)])
+AT_KEYWORDS([dpkg-divert add])
+
+DPKG_GEN_FSYS_FILE([/testdir/foo], [])
+DPKG_GEN_DB_DIVERSIONS([])
+AT_DATA([ref-diversions], [/testdir/foo
+/testdir/foo.distrib
+:
+])
+
+AT_CHECK([DPKG_DIVERT --quiet --local --rename /testdir/foo])
+DPKG_CHECK_FSYS_PATH_MISSING([/testdir/foo])
+DPKG_CHECK_FSYS_PATH_EXISTS([/testdir/foo.distrib])
+AT_CHECK([diff -u ref-diversions DPKG_DIR_ADMIN/diversions])
+
+AT_CLEANUP
+
+AT_SETUP([dpkg-divert add (package rename quiet)])
+AT_KEYWORDS([dpkg-divert add])
+
+DPKG_GEN_DB_DIVERSIONS([])
+AT_DATA([ref-diversions], [/testdir/foo
+/testdir/foo.distrib
+bash
+])
+
+AT_CHECK([DPKG_DIVERT --quiet --rename --package bash /testdir/foo])
+AT_CHECK([diff -u ref-diversions DPKG_DIR_ADMIN/diversions])
+
+AT_CLEANUP
+
+AT_SETUP([dpkg-divert add (rename self-link)])
+AT_KEYWORDS([dpkg-divert add])
+
+DPKG_GEN_FSYS_FILE([/testdir/foo], [])
+DPKG_GEN_FSYS_LINK([/testdir/foo], [/testdir/foo.distrib])
+DPKG_GEN_DB_DIVERSIONS([])
+AT_DATA([ref-diversions], [/testdir/foo
+/testdir/foo.distrib
+:
+])
+
+AT_CHECK([DPKG_DIVERT --quiet --rename /testdir/foo])
+DPKG_CHECK_FSYS_PATH_MISSING([/testdir/foo])
+DPKG_CHECK_FSYS_PATH_EXISTS([/testdir/foo.distrib])
+AT_CHECK([diff -u ref-diversions DPKG_DIR_ADMIN/diversions])
+
+AT_CLEANUP
+
+AT_SETUP([dpkg-divert add (rename other-file)])
+AT_KEYWORDS([dpkg-divert add])
+
+DPKG_GEN_FSYS_FILE([/testdir/foo], [])
+DPKG_GEN_FSYS_FILE([/testdir/foo.distrib], [])
+DPKG_GEN_DB_DIVERSIONS([])
+
+AT_CHECK([DPKG_DIVERT --quiet --rename /testdir/foo], [2], [], [stderr])
+AT_CHECK([$GREP -q 'error: rename involves overwriting' stderr])
+AT_CHECK([cat DPKG_DIR_ADMIN/diversions])
+
+AT_CLEANUP
+
+AT_SETUP([dpkg-divert add (rename missing dir)])
+AT_KEYWORDS([dpkg-divert add])
+
+DPKG_GEN_DB_DIVERSIONS([])
+AT_DATA([ref-diversions], [/testdir/zoo/foo
+/testdir/zoo/foo.distrib
+:
+])
+
+AT_CHECK([DPKG_DIVERT --quiet --rename --add /testdir/zoo/foo])
+AT_CHECK([diff -u ref-diversions DPKG_DIR_ADMIN/diversions])
+
+AT_CLEANUP
+
+AT_SETUP([dpkg-divert add (rename read-only dir)])
+AT_KEYWORDS([dpkg-divert fsys])
+
+AT_SKIP_IF([test -n "$FAKEROOTKEY" || test "$(id -u)" = 0])
+
+DPKG_GEN_FSYS_DIR([/testdir/rodir])
+DPKG_GEN_FSYS_FILE([/testdir/rodir/foo])
+DPKG_GEN_FSYS_FILE([/testdir/bar])
+DPKG_MOD_FSYS_MODE([500], [/testdir/rodir])
+DPKG_GEN_DB_DIVERSIONS([])
+
+AT_CHECK([DPKG_DIVERT --quiet --rename --add /testdir/rodir/foo],
+         [2], [], [stderr])
+AT_CHECK([$GREP -q 'error: .* Permission denied' stderr])
+
+AT_CHECK([DPKG_DIVERT --quiet --rename --divert /testdir/rodir/bar --add /testdir/bar],
+         [2], [], [stderr])
+AT_CHECK([$GREP -q 'error: .* Permission denied' stderr])
+
+AT_CHECK([cat DPKG_DIR_ADMIN/diversions])
+
+DPKG_MOD_FSYS_MODE([755], [/testdir/rodir])
+AT_CLEANUP
+
+AT_SETUP([dpkg-divert add (rename no-access dir)])
+AT_KEYWORDS([dpkg-divert fsys])
+
+AT_SKIP_IF([test -n "$FAKEROOTKEY" || test "$(id -u)" = 0])
+
+DPKG_GEN_FSYS_FILE([/testdir/foo])
+DPKG_GEN_FSYS_DIR([/testdir/nadir])
+DPKG_MOD_FSYS_MODE([000], [/testdir/nadir])
+DPKG_GEN_DB_DIVERSIONS([])
+
+AT_CHECK([DPKG_DIVERT --rename --add /testdir/nadir/foo], [2], [], [stderr])
+AT_CHECK([$GREP -q 'error: .* Permission denied' stderr])
+
+AT_CHECK([DPKG_DIVERT --quiet --rename --divert /testdir/nadir/foo --add /testdir/foo],
+         [2], [], [stderr])
+AT_CHECK([$GREP -q 'error: .* Permission denied' stderr])
+
+AT_CHECK([cat DPKG_DIR_ADMIN/diversions])
+
+# On FreeBSD «rm -rf» cannot traverse a directory with mode 000.
+rmdir DPKG_DIR_INST/testdir/nadir
+
+AT_CLEANUP
+
+AT_SETUP([dpkg-divert add second diversion])
+AT_KEYWORDS([dpkg-divert add])
+
+DPKG_GEN_FSYS_DIR([/testdir])
+DPKG_GEN_DB_DIVERSIONS([])
+
+AT_CHECK([DPKG_DIVERT --rename --add /testdir/foo], [], [stdout])
+AT_CHECK([$GREP -q 'Adding' stdout])
+
+AT_CHECK([DPKG_DIVERT --rename --add /testdir/foo], [], [stdout])
+AT_CHECK([$GREP -q 'Leaving' stdout])
+
+AT_CHECK([DPKG_DIVERT --rename --add /testdir/foo], [], [stdout])
+AT_CHECK([$GREP -q 'Leaving' stdout])
+
+AT_CHECK([DPKG_DIVERT --divert /testdir/foo.bar /testdir/foo],
+         [2], [], [stderr])
+AT_CHECK([$GREP -q 'clashes' stderr])
+
+AT_CHECK([DPKG_DIVERT --package foobar /testdir/foo], [2], [], [stderr])
+AT_CHECK([$GREP -q 'clashes' stderr])
+
+AT_CHECK([DPKG_DIVERT --divert /testdir/foo.distrib /testdir/bar],
+         [2], [], [stderr])
+AT_CHECK([$GREP -q 'clashes' stderr])
+
+AT_CHECK([DPKG_DIVERT /testdir/foo.distrib], [2], [], [stderr])
+AT_CHECK([$GREP -q 'clashes' stderr])
+
+AT_CHECK([DPKG_DIVERT --divert /testdir/foo /testdir/bar], [2], [], [stderr])
+AT_CHECK([$GREP -q 'clashes' stderr])
+
+AT_CLEANUP
+
+AT_SETUP([dpkg-divert add third diversion])
+AT_KEYWORDS([dpkg-divert add])
+
+DPKG_GEN_FSYS_DIR([/testdir])
+DPKG_GEN_DB_DIVERSIONS([])
+
+AT_CHECK([DPKG_DIVERT --rename --add /testdir/foo], [], [stdout])
+AT_CHECK([$GREP -q 'Adding' stdout])
+AT_CHECK([DPKG_DIVERT --rename --add /testdir/bar], [], [stdout])
+AT_CHECK([$GREP -q 'Adding' stdout])
+
+AT_CHECK([DPKG_DIVERT --rename --add /testdir/foo], [], [stdout])
+AT_CHECK([$GREP -q 'Leaving' stdout])
+AT_CHECK([DPKG_DIVERT --rename --package foobar --add /testdir/bar],
+         [2], [], [stderr])
+AT_CHECK([$GREP -q 'clashes' stderr])
+
+AT_CLEANUP
+
+AT_SETUP([dpkg-divert add (file owned by --package)])
+AT_KEYWORDS([dpkg-divert add])
+
+DPKG_GEN_FSYS_FILE([/testdir/foo], [])
+# Only installed packages have their files list considered.
+DPKG_GEN_DB_STATUS([Package: coreutils
+Status: install ok installed
+Version: 0
+Architecture: i386
+Maintainer: dummy
+Description: dummy
+])
+DPKG_GEN_DB_INFO_FILE([coreutils], [list], [/testdir/foo
+])
+DPKG_GEN_DB_DIVERSIONS([])
+AT_DATA([ref-diversions], [/testdir/foo
+/testdir/foo.distrib
+coreutils
+])
+
+AT_CHECK([DPKG_DIVERT --quiet --rename --package coreutils --add /testdir/foo])
+DPKG_CHECK_FSYS_PATH_EXISTS([/testdir/foo])
+DPKG_CHECK_FSYS_PATH_MISSING([/testdir/foo.distrib])
+AT_CHECK([diff -u ref-diversions DPKG_DIR_ADMIN/diversions])
+
+AT_CLEANUP
+
+AT_SETUP([dpkg-divert remove (missing)])
+AT_KEYWORDS([dpkg-divert remove])
+
+DPKG_GEN_DB_DIVERSIONS([])
+
+AT_CHECK([DPKG_DIVERT --no-rename --remove /bin/sh], [], [stdout])
+AT_CHECK([$GREP -q 'No diversion' stdout])
+
+AT_CHECK([DPKG_DIVERT --quiet --no-rename --remove /bin/sh])
+
+AT_CLEANUP
+
+AT_SETUP([dpkg-divert remove (divert-to)])
+AT_KEYWORDS([dpkg-divert remove])
+
+DPKG_GEN_DB_DIVERSIONS([])
+AT_DATA([ref-diversions], [/testdir/bar
+/testdir/bar.distrib
+:
+/testdir/baz
+/testdir/baz.distrib
+:
+])
+
+AT_CHECK([DPKG_DIVERT --quiet --no-rename --add /testdir/foo])
+AT_CHECK([DPKG_DIVERT --quiet --no-rename --add /testdir/bar])
+AT_CHECK([DPKG_DIVERT --quiet --no-rename --add /testdir/baz])
+
+AT_CHECK([DPKG_DIVERT --divert /testdir/foo.my --remove /testdir/foo],
+         [2], [], [stderr])
+AT_CHECK([$GREP -q 'mismatch on divert-to' stderr])
+
+AT_CHECK([DPKG_DIVERT --package baz --remove /testdir/foo], [2], [], [stderr])
+AT_CHECK([$GREP -q 'mismatch on package' stderr])
+
+AT_CHECK([DPKG_DIVERT --package baz --divert /testdir/foo.my --remove /testdir/foo],
+         [2], [], [stderr])
+AT_CHECK([$EGREP -q 'mismatch on (package|divert-to)' stderr])
+
+AT_CHECK([DPKG_DIVERT --rename --divert /testdir/foo.distrib --remove /testdir/foo],
+         [], [stdout])
+AT_CHECK([$EGREP -q 'Removing .*/testdir/foo' stdout])
+
+AT_CHECK([diff -u ref-diversions DPKG_DIR_ADMIN/diversions])
+
+AT_CLEANUP
+
+AT_SETUP([dpkg-divert remove (plain)])
+AT_KEYWORDS([dpkg-divert remove])
+
+DPKG_GEN_DB_DIVERSIONS([])
+AT_DATA([ref-diversions], [/testdir/foo
+/testdir/foo.distrib
+:
+/testdir/baz
+/testdir/baz.distrib
+:
+])
+
+AT_CHECK([DPKG_DIVERT --quiet --no-rename --add /testdir/foo])
+AT_CHECK([DPKG_DIVERT --quiet --no-rename --add /testdir/bar])
+AT_CHECK([DPKG_DIVERT --quiet --no-rename --add /testdir/baz])
+
+AT_CHECK([DPKG_DIVERT --no-rename --remove /testdir/bar], [], [stdout])
+AT_CHECK([$EGREP -q 'Removing .* /testdir/bar' stdout])
+
+AT_CHECK([diff -u ref-diversions DPKG_DIR_ADMIN/diversions])
+
+AT_CLEANUP
+
+AT_SETUP([dpkg-divert remove (by-package)])
+AT_KEYWORDS([dpkg-divert remove])
+
+DPKG_GEN_DB_DIVERSIONS([])
+AT_DATA([ref-diversions], [/testdir/bar
+/testdir/bar.distrib
+:
+/testdir/foo
+/testdir/foo.distrib
+:
+])
+
+AT_CHECK([DPKG_DIVERT --quiet --no-rename /testdir/foo])
+AT_CHECK([DPKG_DIVERT --quiet --no-rename /testdir/bar])
+AT_CHECK([DPKG_DIVERT --quiet --no-rename --package bash /testdir/baz])
+
+AT_CHECK([DPKG_DIVERT --no-rename --quiet --package bash --remove /testdir/baz])
+
+AT_CHECK([diff -u ref-diversions DPKG_DIR_ADMIN/diversions])
+
+AT_CLEANUP
+
+AT_SETUP([dpkg-divert remove (test)])
+AT_KEYWORDS([dpkg-divert remove])
+
+DPKG_GEN_FSYS_FILE([/testdir/foo], [])
+DPKG_GEN_DB_DIVERSIONS([])
+AT_DATA([ref-diversions], [/testdir/foo
+/testdir/foo.distrib
+:
+])
+
+AT_CHECK([DPKG_DIVERT --quiet --rename /testdir/foo])
+
+AT_CHECK([DPKG_DIVERT --test --rename --remove /testdir/foo], [], [stdout])
+AT_CHECK([$GREP -q 'Removing .*/testdir/foo' stdout])
+DPKG_CHECK_FSYS_PATH_MISSING([/testdir/foo])
+DPKG_CHECK_FSYS_PATH_EXISTS([/testdir/foo.distrib])
+AT_CHECK([diff -u ref-diversions DPKG_DIR_ADMIN/diversions])
+
+AT_CHECK([DPKG_DIVERT --quiet --rename --remove /testdir/foo])
+DPKG_CHECK_FSYS_PATH_EXISTS([/testdir/foo])
+DPKG_CHECK_FSYS_PATH_MISSING([/testdir/foo.distrib])
+AT_CHECK([cat DPKG_DIR_ADMIN/diversions])
+
+AT_CLEANUP
+
+AT_SETUP([dpkg-divert db (no-access)])
+AT_KEYWORDS([dpkg-divert db])
+
+AT_SKIP_IF([test -n "$FAKEROOTKEY" || test "$(id -u)" = 0])
+
+# An inexistent diversions db file should not be considered a failure,
+# but a failure to open it should be.
+DPKG_GEN_DB_DIVERSIONS([])
+DPKG_MOD_DB_MODE([000], [diversions])
+
+AT_CHECK([DPKG_DIVERT --list], [2], [], [stderr])
+AT_CHECK([$EGREP -q '(cannot|failed).*open' stderr])
+
+DPKG_MOD_DB_MODE([644], [diversions])
+AT_CLEANUP
+
+AT_SETUP([dpkg-divert db (truncated)])
+AT_KEYWORDS([dpkg-divert db])
+
+DPKG_GEN_DB_DIVERSIONS([/bin/sh
+])
+
+AT_CHECK([DPKG_DIVERT --list], [2], [], [stderr])
+AT_CHECK([$EGREP -q '(corrupt|unexpected end of file)' stderr])
+
+DPKG_GEN_DB_DIVERSIONS([/bin/sh
+bash
+])
+
+AT_CHECK([DPKG_DIVERT --list], [2], [], [stderr])
+AT_CHECK([$EGREP -q '(corrupt|unexpected end of file)' stderr])
+
+AT_CLEANUP
+
+AT_SETUP([dpkg-divert db (read-only dir)])
+AT_KEYWORDS([dpkg-divert db])
+
+AT_SKIP_IF([test -n "$FAKEROOTKEY" || test "$(id -u)" = 0])
+
+DPKG_GEN_DB_DIVERSIONS([])
+DPKG_MOD_DB_MODE([500])
+
+AT_CHECK([DPKG_DIVERT --rename --add /testdir/foo], [2], [stdout], [stderr])
+AT_CHECK([$GREP -q 'Adding' stdout])
+AT_CHECK([$GREP -q 'create.*new' stderr])
+
+DPKG_MOD_DB_MODE([755])
+AT_CLEANUP
+
+AT_SETUP([dpkg-divert db (disk full)])
+AT_KEYWORDS([dpkg-divert db])
+
+AT_SKIP_IF([test -n "$FAKEROOTKEY" || test "$(id -u)" = 0])
+AT_SKIP_IF([! test -c /dev/full])
+
+DPKG_GEN_DB_DIVERSIONS([])
+ln -s /dev/full DPKG_DIR_ADMIN/diversions-new
+
+AT_CHECK([DPKG_DIVERT --rename --add /testdir/foo], [2], [stdout], [stderr])
+AT_CHECK([$GREP -q 'Adding' stdout])
+AT_CHECK([$EGREP -q '(write|flush|close).*new' stderr])
+
+AT_CLEANUP
+
+AT_SETUP([dpkg-divert db (pathname is dir)])
+AT_KEYWORDS([dpkg-divert db])
+
+DPKG_GEN_DB_DIVERSIONS([])
+rm -f DPKG_DIR_ADMIN/diversions-new
+mkdir DPKG_DIR_ADMIN/diversions-old
+
+AT_CHECK([DPKG_DIVERT --rename --add /testdir/foo], [2], [stdout], [stderr])
+AT_CHECK([$GREP -q 'Adding' stdout])
+AT_CHECK([$GREP -q 'remov.*old' stderr])
+
+AT_CLEANUP
diff --git a/src/at/local.at b/src/at/local.at
new file mode 100644
index 0000000..a49311c
--- /dev/null
+++ b/src/at/local.at
@@ -0,0 +1,141 @@
+# Dpkg helper macros
+
+m4_pattern_forbid([^DPKG_])
+m4_pattern_allow([^DPKG_DEBUG$])
+m4_pattern_allow([^DPKG_ROOT$])
+m4_pattern_allow([^DPKG_ADMINDIR$])
+m4_pattern_allow([^DPKG_DATADIR$])
+
+#
+# Options.
+#
+
+m4_define([DPKG_DIR_INST], [dpkginst])
+m4_define([DPKG_DIR_ADMIN], [dpkgdb])
+
+# DPKG_OPTIONS_COMMON
+m4_define([DPKG_OPTIONS_COMMON], [dnl
+  --admindir=DPKG_DIR_ADMIN dnl
+])
+
+# DPKG_DIVERT_OPTIONS
+m4_define([DPKG_DIVERT_OPTIONS], [dnl
+  --instdir=DPKG_DIR_INST dnl
+])
+
+# DPKG_DIVERT(...)
+m4_define([DPKG_DIVERT],
+  [dpkg-divert DPKG_OPTIONS_COMMON DPKG_DIVERT_OPTIONS])
+
+# DPKG_DIVERT_ADD(...)
+m4_define([DPKG_DIVERT_ADD], [DPKG_DIVERT --add])
+
+# DPKG_DIVERT_DEL(...)
+m4_define([DPKG_DIVERT_DEL], [DPKG_DIVERT --remove])
+
+#
+# Macros.
+#
+
+# DPKG_SEQ($max)
+m4_define([DPKG_SEQ], [dnl
+  m4_for([i], [1], [$1], [], [i ])dnl
+])
+
+# DPKG_CWD()
+m4_define([DPKG_CWD], [dnl
+  $PERL -MCwd=realpath,getcwd -E 'say realpath(getcwd())'dnl
+])
+
+# DPKG_FILE_SIZE($filename)
+m4_define([DPKG_FILE_SIZE], [
+  $PERL -E 'say -s shift' "$1" dnl
+])
+
+# DPKG_GEN_FSYS()
+m4_define([DPKG_GEN_DB], [
+  mkdir -p DPKG_DIR_INST
+])
+
+# DPKG_GEN_FSYS_DIR([$dirname])
+m4_define([DPKG_GEN_FSYS_DIR], [
+  mkdir -p "DPKG_DIR_INST/$1"
+])
+
+# DPKG_GEN_FSYS_FILE([$filename], [$contents])
+m4_define([DPKG_GEN_FSYS_FILE], [
+  mkdir -p "DPKG_DIR_INST/$(dirname '$1')"
+  AT_DATA([DPKG_DIR_INST/$1], [$2])
+])
+
+# DPKG_GEN_FSYS_LINK([$pathname], [$target])
+m4_define([DPKG_GEN_FSYS_LINK], [
+  ln "DPKG_DIR_INST/$1" "DPKG_DIR_INST/$2"
+])
+
+# DPKG_CHECK_FSYS_PATH_EXISTS([$pathname])
+m4_define([DPKG_CHECK_FSYS_PATH_EXISTS], [
+  AT_CHECK([test -e "DPKG_DIR_INST/$1"])
+])
+
+# DPKG_CHECK_FSYS_PATH_MISSING([$pathname])
+m4_define([DPKG_CHECK_FSYS_PATH_MISSING], [
+  AT_CHECK([test -e "DPKG_DIR_INST/$1"], [1])
+])
+
+# DPKG_MOD_FSYS_MODE([$mode], [$pathname])
+m4_define([DPKG_MOD_FSYS_MODE], [
+  chmod $1 "DPKG_DIR_INST/$2"
+])
+
+# DPKG_TMPL_CONTROL([$pkgname])
+m4_define([DPKG_TMPL_CONTROL],
+[Package: $1
+Version: 0.0-1
+Section: test
+Priority: extra
+Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+Architecture: all
+Description: test package])
+
+# DPKG_GEN_DB_STATUS([$contents])
+m4_define([DPKG_GEN_DB_STATUS], [
+  mkdir -p "DPKG_DIR_ADMIN"
+  AT_DATA([DPKG_DIR_ADMIN/status], [$1])
+])
+
+# DPKG_GEN_DB_DIVERSIONS([$contents])
+m4_define([DPKG_GEN_DB_DIVERSIONS], [
+  mkdir -p "DPKG_DIR_ADMIN"
+  AT_DATA([DPKG_DIR_ADMIN/diversions], [$1])
+])
+
+# DPKG_GEN_DB_INFO_FILE([$pkg], [$file], [$contents])
+m4_define([DPKG_GEN_DB_INFO_FILE], [
+  mkdir -p "DPKG_DIR_ADMIN/info"
+  AT_DATA([DPKG_DIR_ADMIN/info/$1.$2], [$3])
+])
+
+# DPKG_MOD_DB_MODE([$mode], [$pathname])
+m4_define([DPKG_MOD_DB_MODE], [
+  chmod $1 "DPKG_DIR_ADMIN/$2"
+])
+
+# DPKG_GEN_CTRL_FILE([$pkgname], [$file], [$contents])
+m4_define([DPKG_GEN_CTRL_FILE], [
+  mkdir -p '$1/DEBIAN'
+
+  cat >'$1/DEBIAN/$2' <<CTRL_TEMPL
+$3
+CTRL_TEMPL
+])
+
+# DPKG_GEN_CONTROL([$pkgname])
+m4_define([DPKG_GEN_CONTROL], [
+  DPKG_GEN_CTRL_FILE([$1], [control], [DPKG_TMPL_CONTROL([$1])])
+])
+
+# DPKG_MOD_CONTROL([$pkgname], [$perlexpr])
+m4_define([DPKG_MOD_CONTROL], [
+  $PERL -p -i -E '$2' '$1/DEBIAN/control'
+])
diff --git a/src/at/package.m4 b/src/at/package.m4
new file mode 100644
index 0000000..ca9daa9
--- /dev/null
+++ b/src/at/package.m4
@@ -0,0 +1,7 @@
+# Signature of the current package.
+m4_define([AT_PACKAGE_NAME], [dpkg])
+m4_define([AT_PACKAGE_TARNAME], [dpkg])
+m4_define([AT_PACKAGE_VERSION], [1.22.4])
+m4_define([AT_PACKAGE_STRING], [dpkg 1.22.4])
+m4_define([AT_PACKAGE_URL], [https://wiki.debian.org/Teams/Dpkg])
+m4_define([AT_PACKAGE_BUGREPORT], [debian-dpkg@lists.debian.org])
diff --git a/src/at/realpath.at b/src/at/realpath.at
new file mode 100644
index 0000000..40e371d
--- /dev/null
+++ b/src/at/realpath.at
@@ -0,0 +1,86 @@
+AT_SETUP([dpkg-realpath options])
+AT_KEYWORDS([dpkg-realpath command-line])
+
+AT_CHECK([dpkg-realpath --version], [], [ignore])
+AT_CHECK([dpkg-realpath --help], [], [ignore])
+
+AT_CLEANUP
+
+AT_SETUP([dpkg-realpath path resolving])
+AT_KEYWORDS([dpkg-realpath canonicalize])
+
+mkdir -p aa/bb/cc
+mkdir -p zz/yy/xx
+mkdir -p usr/bin
+AT_DATA([aa/bb/cc/file], [])
+ln -sf aa/bb/cc/file zz/yy/xx/symlink-rel
+ln -sf /aa/bb/cc/file zz/yy/xx/symlink-abs
+AT_DATA([usr/bin/a-shell], [])
+ln -sf /usr/bin/a-shell usr/bin/sh
+
+tmpdir="$(DPKG_CWD)"
+export DPKG_ROOT=
+
+# Relative paths
+AT_CHECK_UNQUOTED([dpkg-realpath aa/bb/cc], [],
+[$tmpdir/aa/bb/cc
+])
+AT_CHECK_UNQUOTED([dpkg-realpath zz/yy/xx], [], [$tmpdir/zz/yy/xx
+])
+AT_CHECK_UNQUOTED([dpkg-realpath usr/bin], [], [$tmpdir/usr/bin
+])
+AT_CHECK_UNQUOTED([dpkg-realpath aa/bb/cc/file], [], [$tmpdir/aa/bb/cc/file
+])
+AT_CHECK_UNQUOTED([dpkg-realpath zz/yy/xx/symlink-rel], [],
+[$tmpdir/zz/yy/xx/aa/bb/cc/file
+])
+AT_CHECK([dpkg-realpath zz/yy/xx/symlink-abs], [], [/aa/bb/cc/file
+])
+AT_CHECK_UNQUOTED([dpkg-realpath usr/bin/a-shell], [],
+[$tmpdir/usr/bin/a-shell
+])
+AT_CHECK([dpkg-realpath usr/bin/sh], [], [/usr/bin/a-shell
+])
+
+# Absolute paths
+cd /
+AT_CHECK_UNQUOTED([dpkg-realpath "$tmpdir/aa/bb/cc"], [], [$tmpdir/aa/bb/cc
+])
+AT_CHECK_UNQUOTED([dpkg-realpath "$tmpdir/zz/yy/xx"], [], [$tmpdir/zz/yy/xx
+])
+AT_CHECK_UNQUOTED([dpkg-realpath "$tmpdir/usr/bin"], [], [$tmpdir/usr/bin
+])
+AT_CHECK_UNQUOTED([dpkg-realpath "$tmpdir/aa/bb/cc/file"], [],
+[$tmpdir/aa/bb/cc/file
+])
+AT_CHECK_UNQUOTED([dpkg-realpath "$tmpdir/zz/yy/xx/symlink-rel"], [],
+[$tmpdir/zz/yy/xx/aa/bb/cc/file
+])
+AT_CHECK([dpkg-realpath "$tmpdir/zz/yy/xx/symlink-abs"], [], [/aa/bb/cc/file
+])
+AT_CHECK_UNQUOTED([dpkg-realpath "$tmpdir/usr/bin/a-shell"], [],
+[$tmpdir/usr/bin/a-shell
+])
+AT_CHECK([dpkg-realpath "$tmpdir/usr/bin/sh"], [], [/usr/bin/a-shell
+])
+
+# Chrooted paths
+DPKG_ROOT="$tmpdir"
+AT_CHECK([dpkg-realpath /aa/bb/cc], [], [/aa/bb/cc
+])
+AT_CHECK([dpkg-realpath /zz/yy/xx], [], [/zz/yy/xx
+])
+AT_CHECK([dpkg-realpath /usr/bin], [], [/usr/bin
+])
+AT_CHECK([dpkg-realpath /aa/bb/cc/file], [], [/aa/bb/cc/file
+])
+AT_CHECK([dpkg-realpath /zz/yy/xx/symlink-rel], [], [/zz/yy/xx/aa/bb/cc/file
+])
+AT_CHECK([dpkg-realpath /zz/yy/xx/symlink-abs], [], [/aa/bb/cc/file
+])
+AT_CHECK([dpkg-realpath /usr/bin/a-shell], [], [/usr/bin/a-shell
+])
+AT_CHECK([dpkg-realpath /usr/bin/sh], [], [/usr/bin/a-shell
+])
+
+AT_CLEANUP
diff --git a/src/at/testsuite b/src/at/testsuite
new file mode 100755
index 0000000..aea9493
--- /dev/null
+++ b/src/at/testsuite
@@ -0,0 +1,13102 @@
+#! /bin/sh
+# Generated from testsuite.at by GNU Autoconf 2.71.
+#
+# Copyright (C) 2009-2017, 2020-2021 Free Software Foundation, Inc.
+#
+# This test suite is free software; the Free Software Foundation gives
+# unlimited permission to copy, distribute and modify it.
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
+
+# Be more Bourne compatible
+DUALCASE=1; export DUALCASE # for MKS sh
+as_nop=:
+if test ${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
+then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else $as_nop
+  case `(set -o) 2>/dev/null` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+
+
+
+# Reset variables that may have inherited troublesome values from
+# the environment.
+
+# IFS needs to be set, to space, tab, and newline, in precisely that order.
+# (If _AS_PATH_WALK were called with IFS unset, it would have the
+# side effect of setting IFS to empty, thus disabling word splitting.)
+# Quoting is to prevent editors from complaining about space-tab.
+as_nl='
+'
+export as_nl
+IFS=" ""	$as_nl"
+
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# Ensure predictable behavior from utilities with locale-dependent output.
+LC_ALL=C
+export LC_ALL
+LANGUAGE=C
+export LANGUAGE
+
+# We cannot yet rely on "unset" to work, but we need these variables
+# to be unset--not just set to an empty or harmless value--now, to
+# avoid bugs in old shells (e.g. pre-3.0 UWIN ksh).  This construct
+# also avoids known problems related to "unset" and subshell syntax
+# in other old shells (e.g. bash 2.01 and pdksh 5.2.14).
+for as_var in BASH_ENV ENV MAIL MAILPATH CDPATH
+do eval test \${$as_var+y} \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
+done
+
+# Ensure that fds 0, 1, and 2 are open.
+if (exec 3>&0) 2>/dev/null; then :; else exec 0</dev/null; fi
+if (exec 3>&1) 2>/dev/null; then :; else exec 1>/dev/null; fi
+if (exec 3>&2)            ; then :; else exec 2>/dev/null; fi
+
+# The user is always right.
+if ${PATH_SEPARATOR+false} :; then
+  PATH_SEPARATOR=:
+  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
+    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
+      PATH_SEPARATOR=';'
+  }
+fi
+
+
+# Find who we are.  Look in the path if we contain no directory separator.
+as_myself=
+case $0 in #((
+  *[\\/]* ) as_myself=$0 ;;
+  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    test -r "$as_dir$0" && as_myself=$as_dir$0 && break
+  done
+IFS=$as_save_IFS
+
+     ;;
+esac
+# We did not find ourselves, most probably we were run as `sh COMMAND'
+# in which case we are not to be found in the path.
+if test "x$as_myself" = x; then
+  as_myself=$0
+fi
+if test ! -f "$as_myself"; then
+  printf "%s\n" "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  exit 1
+fi
+
+
+if test "x$CONFIG_SHELL" = x; then
+  as_bourne_compatible="as_nop=:
+if test \${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
+then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '\${1+\"\$@\"}'='\"\$@\"'
+  setopt NO_GLOB_SUBST
+else \$as_nop
+  case \`(set -o) 2>/dev/null\` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+"
+  as_required="as_fn_return () { (exit \$1); }
+as_fn_success () { as_fn_return 0; }
+as_fn_failure () { as_fn_return 1; }
+as_fn_ret_success () { return 0; }
+as_fn_ret_failure () { return 1; }
+
+exitcode=0
+as_fn_success || { exitcode=1; echo as_fn_success failed.; }
+as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
+as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
+as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
+if ( set x; as_fn_ret_success y && test x = \"\$1\" )
+then :
+
+else \$as_nop
+  exitcode=1; echo positional parameters were not saved.
+fi
+test x\$exitcode = x0 || exit 1
+blah=\$(echo \$(echo blah))
+test x\"\$blah\" = xblah || exit 1
+test -x / || exit 1"
+  as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
+  as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
+  eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
+  test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1
+test \$(( 1 + 1 )) = 2 || exit 1"
+  if (eval "$as_required") 2>/dev/null
+then :
+  as_have_required=yes
+else $as_nop
+  as_have_required=no
+fi
+  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null
+then :
+
+else $as_nop
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_found=false
+for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+  as_found=:
+  case $as_dir in #(
+	 /*)
+	   for as_base in sh bash ksh sh5; do
+	     # Try only shells that exist, to save several forks.
+	     as_shell=$as_dir$as_base
+	     if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
+		    as_run=a "$as_shell" -c "$as_bourne_compatible""$as_required" 2>/dev/null
+then :
+  CONFIG_SHELL=$as_shell as_have_required=yes
+		   if as_run=a "$as_shell" -c "$as_bourne_compatible""$as_suggested" 2>/dev/null
+then :
+  break 2
+fi
+fi
+	   done;;
+       esac
+  as_found=false
+done
+IFS=$as_save_IFS
+if $as_found
+then :
+
+else $as_nop
+  if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
+	      as_run=a "$SHELL" -c "$as_bourne_compatible""$as_required" 2>/dev/null
+then :
+  CONFIG_SHELL=$SHELL as_have_required=yes
+fi
+fi
+
+
+      if test "x$CONFIG_SHELL" != x
+then :
+  export CONFIG_SHELL
+             # We cannot yet assume a decent shell, so we have to provide a
+# neutralization value for shells without unset; and this also
+# works around shells that cannot unset nonexistent variables.
+# Preserve -v and -x to the replacement shell.
+BASH_ENV=/dev/null
+ENV=/dev/null
+(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+case $- in # ((((
+  *v*x* | *x*v* ) as_opts=-vx ;;
+  *v* ) as_opts=-v ;;
+  *x* ) as_opts=-x ;;
+  * ) as_opts= ;;
+esac
+exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+# Admittedly, this is quite paranoid, since all the known shells bail
+# out after a failed `exec'.
+printf "%s\n" "$0: could not re-execute with $CONFIG_SHELL" >&2
+exit 255
+fi
+
+    if test x$as_have_required = xno
+then :
+  printf "%s\n" "$0: This script requires a shell more modern than all"
+  printf "%s\n" "$0: the shells that I found on your system."
+  if test ${ZSH_VERSION+y} ; then
+    printf "%s\n" "$0: In particular, zsh $ZSH_VERSION has bugs and should"
+    printf "%s\n" "$0: be upgraded to zsh 4.3.4 or later."
+  else
+    printf "%s\n" "$0: Please tell bug-autoconf@gnu.org about your system,
+$0: including any error possibly output before this
+$0: message. Then install a modern shell, or manually run
+$0: the script under such a shell if you do have one."
+  fi
+  exit 1
+fi
+fi
+fi
+SHELL=${CONFIG_SHELL-/bin/sh}
+export SHELL
+# Unset more variables known to interfere with behavior of common tools.
+CLICOLOR_FORCE= GREP_OPTIONS=
+unset CLICOLOR_FORCE GREP_OPTIONS
+
+## --------------------- ##
+## M4sh Shell Functions. ##
+## --------------------- ##
+# as_fn_unset VAR
+# ---------------
+# Portably unset VAR.
+as_fn_unset ()
+{
+  { eval $1=; unset $1;}
+}
+as_unset=as_fn_unset
+
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+# as_fn_nop
+# ---------
+# Do nothing but, unlike ":", preserve the value of $?.
+as_fn_nop ()
+{
+  return $?
+}
+as_nop=as_fn_nop
+
+# as_fn_mkdir_p
+# -------------
+# Create "$as_dir" as a directory, including parents if necessary.
+as_fn_mkdir_p ()
+{
+
+  case $as_dir in #(
+  -*) as_dir=./$as_dir;;
+  esac
+  test -d "$as_dir" || eval $as_mkdir_p || {
+    as_dirs=
+    while :; do
+      case $as_dir in #(
+      *\'*) as_qdir=`printf "%s\n" "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *) as_qdir=$as_dir;;
+      esac
+      as_dirs="'$as_qdir' $as_dirs"
+      as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_dir" : 'X\(//\)[^/]' \| \
+	 X"$as_dir" : 'X\(//\)$' \| \
+	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+printf "%s\n" X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      test -d "$as_dir" && break
+    done
+    test -z "$as_dirs" || eval "mkdir $as_dirs"
+  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
+
+
+} # as_fn_mkdir_p
+
+# as_fn_executable_p FILE
+# -----------------------
+# Test if FILE is an executable regular file.
+as_fn_executable_p ()
+{
+  test -f "$1" && test -x "$1"
+} # as_fn_executable_p
+# as_fn_append VAR VALUE
+# ----------------------
+# Append the text in VALUE to the end of the definition contained in VAR. Take
+# advantage of any shell optimizations that allow amortized linear growth over
+# repeated appends, instead of the typical quadratic growth present in naive
+# implementations.
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null
+then :
+  eval 'as_fn_append ()
+  {
+    eval $1+=\$2
+  }'
+else $as_nop
+  as_fn_append ()
+  {
+    eval $1=\$$1\$2
+  }
+fi # as_fn_append
+
+# as_fn_arith ARG...
+# ------------------
+# Perform arithmetic evaluation on the ARGs, and store the result in the
+# global $as_val. Take advantage of shells that can avoid forks. The arguments
+# must be portable across $(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null
+then :
+  eval 'as_fn_arith ()
+  {
+    as_val=$(( $* ))
+  }'
+else $as_nop
+  as_fn_arith ()
+  {
+    as_val=`expr "$@" || test $? -eq 1`
+  }
+fi # as_fn_arith
+
+
+# as_fn_error STATUS ERROR [LINENO LOG_FD]
+# ----------------------------------------
+# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
+# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
+# script with STATUS, using 1 if that was 0.
+as_fn_error ()
+{
+  as_status=$1; test $as_status -eq 0 && as_status=1
+  if test "$4"; then
+    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+  fi
+  printf "%s\n" "$as_me: error: $2" >&2
+  as_fn_exit $as_status
+} # as_fn_error
+
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+printf "%s\n" X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+  as_dirname=dirname
+else
+  as_dirname=false
+fi
+
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+
+  as_lineno_1=$LINENO as_lineno_1a=$LINENO
+  as_lineno_2=$LINENO as_lineno_2a=$LINENO
+  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
+  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
+  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
+  sed -n '
+    p
+    /[$]LINENO/=
+  ' <$as_myself |
+    sed '
+      s/[$]LINENO.*/&-/
+      t lineno
+      b
+      :lineno
+      N
+      :loop
+      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
+      t loop
+      s/-\n.*//
+    ' >$as_me.lineno &&
+  chmod +x "$as_me.lineno" ||
+    { printf "%s\n" "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+
+  # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
+  # already done that, so ensure we don't try to do so again and fall
+  # in an infinite loop.  This has already happened in practice.
+  _as_can_reexec=no; export _as_can_reexec
+  # Don't try to exec as it changes $[0], causing all sort of problems
+  # (the dirname of $[0] is not the place where we might find the
+  # original and so on.  Autoconf is especially sensitive to this).
+  . "./$as_me.lineno"
+  # Exit status is that of the last command.
+  exit
+}
+
+
+# Determine whether it's possible to make 'echo' print without a newline.
+# These variables are no longer used directly by Autoconf, but are AC_SUBSTed
+# for compatibility with existing Makefiles.
+ECHO_C= ECHO_N= ECHO_T=
+case `echo -n x` in #(((((
+-n*)
+  case `echo 'xy\c'` in
+  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
+  xy)  ECHO_C='\c';;
+  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
+       ECHO_T='	';;
+  esac;;
+*)
+  ECHO_N='-n';;
+esac
+
+# For backward compatibility with old third-party macros, we provide
+# the shell variables $as_echo and $as_echo_n.  New code should use
+# AS_ECHO(["message"]) and AS_ECHO_N(["message"]), respectively.
+as_echo='printf %s\n'
+as_echo_n='printf %s'
+
+
+rm -f conf$$ conf$$.exe conf$$.file
+if test -d conf$$.dir; then
+  rm -f conf$$.dir/conf$$.file
+else
+  rm -f conf$$.dir
+  mkdir conf$$.dir 2>/dev/null
+fi
+if (echo >conf$$.file) 2>/dev/null; then
+  if ln -s conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s='ln -s'
+    # ... but there are two gotchas:
+    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+    # In both cases, we have to default to `cp -pR'.
+    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+      as_ln_s='cp -pR'
+  elif ln conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s=ln
+  else
+    as_ln_s='cp -pR'
+  fi
+else
+  as_ln_s='cp -pR'
+fi
+rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+rmdir conf$$.dir 2>/dev/null
+
+if mkdir -p . 2>/dev/null; then
+  as_mkdir_p='mkdir -p "$as_dir"'
+else
+  test -d ./-p && rmdir ./-p
+  as_mkdir_p=false
+fi
+
+as_test_x='test -x'
+as_executable_p=as_fn_executable_p
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+
+
+
+
+
+SHELL=${CONFIG_SHELL-/bin/sh}
+
+# How were we run?
+at_cli_args="$@"
+
+
+# Not all shells have the 'times' builtin; the subshell is needed to make
+# sure we discard the 'times: not found' message from the shell.
+at_times_p=false
+(times) >/dev/null 2>&1 && at_times_p=:
+
+# CLI Arguments to pass to the debugging scripts.
+at_debug_args=
+# -e sets to true
+at_errexit_p=false
+# Shall we be verbose?  ':' means no, empty means yes.
+at_verbose=:
+at_quiet=
+# Running several jobs in parallel, 0 means as many as test groups.
+at_jobs=1
+at_traceon=:
+at_trace_echo=:
+at_check_filter_trace=:
+
+# Shall we keep the debug scripts?  Must be `:' when the suite is
+# run by a debug script, so that the script doesn't remove itself.
+at_debug_p=false
+# Display help message?
+at_help_p=false
+# Display the version message?
+at_version_p=false
+# List test groups?
+at_list_p=false
+# --clean
+at_clean=false
+# Test groups to run
+at_groups=
+# Whether to rerun failed tests.
+at_recheck=
+# Whether a write failure occurred
+at_write_fail=0
+
+# The directory we run the suite in.  Default to . if no -C option.
+at_dir=`pwd`
+# An absolute reference to this testsuite script.
+case $as_myself in
+  [\\/]* | ?:[\\/]* ) at_myself=$as_myself ;;
+  * ) at_myself=$at_dir/$as_myself ;;
+esac
+# Whether -C is in effect.
+at_change_dir=false
+
+# Whether to enable colored test results.
+at_color=auto
+# As many question marks as there are digits in the last test group number.
+# Used to normalize the test group numbers so that `ls' lists them in
+# numerical order.
+at_format='??'
+# Description of all the test groups.
+at_help_all="1;deb-format.at:1;dpkg-deb options;dpkg-deb command-line;
+2;deb-format.at:10;dpkg-deb .deb format 0.93x;dpkg-deb deb-old;
+3;deb-format.at:208;dpkg-deb .deb format 2.x (core);dpkg-deb deb;
+4;deb-format.at:511;dpkg-deb .deb format 2.x (xz);dpkg-deb deb;
+5;deb-format.at:562;dpkg-deb .deb format 2.x (zstd);dpkg-deb deb;
+6;deb-format.at:613;dpkg-deb .deb format 2.x (bzip2);dpkg-deb deb;
+7;deb-format.at:641;dpkg-deb .deb format 2.x (lzma);dpkg-deb deb;
+8;deb-content.at:1;dpkg-deb .deb conffiles;dpkg-deb deb conffiles;
+9;deb-fields.at:1;dpkg-deb .deb fields;dpkg-deb deb fields;
+10;deb-split.at:1;dpkg-split options;dpkg-split command-line;
+11;deb-split.at:9;dpkg-split .deb format;dpkg-split deb-split;
+12;realpath.at:1;dpkg-realpath options;dpkg-realpath command-line;
+13;realpath.at:9;dpkg-realpath path resolving;dpkg-realpath canonicalize;
+14;divert.at:1;dpkg-divert options;dpkg-divert command-line;
+15;divert.at:83;dpkg-divert query (empty db);dpkg-divert query;
+16;divert.at:94;dpkg-divert query (list);dpkg-divert query;
+17;divert.at:134;dpkg-divert query (listpackage + truename);dpkg-divert query;
+18;divert.at:160;dpkg-divert add (local rename);dpkg-divert add;
+19;divert.at:178;dpkg-divert add (local no-rename);dpkg-divert add;
+20;divert.at:196;dpkg-divert add (rename quiet);dpkg-divert add;
+21;divert.at:213;dpkg-divert add (test rename quiet);dpkg-divert add;
+22;divert.at:226;dpkg-divert add (rename missing quiet);dpkg-divert add;
+23;divert.at:243;dpkg-divert add (local rename quiet);dpkg-divert add;
+24;divert.at:260;dpkg-divert add (package rename quiet);dpkg-divert add;
+25;divert.at:274;dpkg-divert add (rename self-link);dpkg-divert add;
+26;divert.at:292;dpkg-divert add (rename other-file);dpkg-divert add;
+27;divert.at:305;dpkg-divert add (rename missing dir);dpkg-divert add;
+28;divert.at:319;dpkg-divert add (rename read-only dir);dpkg-divert fsys;
+29;divert.at:343;dpkg-divert add (rename no-access dir);dpkg-divert fsys;
+30;divert.at:367;dpkg-divert add second diversion;dpkg-divert add;
+31;divert.at:401;dpkg-divert add third diversion;dpkg-divert add;
+32;divert.at:420;dpkg-divert add (file owned by --package);dpkg-divert add;
+33;divert.at:447;dpkg-divert remove (missing);dpkg-divert remove;
+34;divert.at:459;dpkg-divert remove (divert-to);dpkg-divert remove;
+35;divert.at:494;dpkg-divert remove (plain);dpkg-divert remove;
+36;divert.at:517;dpkg-divert remove (by-package);dpkg-divert remove;
+37;divert.at:539;dpkg-divert remove (test);dpkg-divert remove;
+38;divert.at:564;dpkg-divert db (no-access);dpkg-divert db;
+39;divert.at:580;dpkg-divert db (truncated);dpkg-divert db;
+40;divert.at:598;dpkg-divert db (read-only dir);dpkg-divert db;
+41;divert.at:613;dpkg-divert db (disk full);dpkg-divert db;
+42;divert.at:628;dpkg-divert db (pathname is dir);dpkg-divert db;
+43;chdir.at:5;dpkg chdir opts;dpkg command-line chdir;
+44;chdir.at:5;dpkg chdir env;dpkg command-line chdir;
+45;chdir.at:5;dpkg chdir env+opt admindir;dpkg command-line chdir;
+46;chdir.at:5;dpkg chdir env+opt root;dpkg command-line chdir;
+47;chdir.at:5;dpkg chdir env+opt root+admindir;dpkg command-line chdir;
+48;chdir.at:5;dpkg-divert chdir opts;dpkg-divert command-line chdir;
+49;chdir.at:5;dpkg-divert chdir env;dpkg-divert command-line chdir;
+50;chdir.at:5;dpkg-divert chdir env+opt admindir;dpkg-divert command-line chdir;
+51;chdir.at:5;dpkg-divert chdir env+opt root;dpkg-divert command-line chdir;
+52;chdir.at:5;dpkg-divert chdir env+opt root+admindir;dpkg-divert command-line chdir;
+53;chdir.at:5;dpkg-statoverride chdir opts;dpkg-statoverride command-line chdir;
+54;chdir.at:5;dpkg-statoverride chdir env;dpkg-statoverride command-line chdir;
+55;chdir.at:5;dpkg-statoverride chdir env+opt admindir;dpkg-statoverride command-line chdir;
+56;chdir.at:5;dpkg-statoverride chdir env+opt root;dpkg-statoverride command-line chdir;
+57;chdir.at:5;dpkg-statoverride chdir env+opt root+admindir;dpkg-statoverride command-line chdir;
+58;chdir.at:329;dpkg-split chdir opts;dpkg-split command-line chdir;
+59;chdir.at:329;dpkg-split chdir env;dpkg-split command-line chdir;
+60;chdir.at:329;dpkg-split chdir env+opt admindir;dpkg-split command-line chdir;
+61;chdir.at:329;dpkg-split chdir env+opt root;dpkg-split command-line chdir;
+62;chdir.at:329;dpkg-split chdir env+opt root+admindir;dpkg-split command-line chdir;
+63;chdir.at:329;dpkg-query chdir opts;dpkg-query command-line chdir;
+64;chdir.at:329;dpkg-query chdir env;dpkg-query command-line chdir;
+65;chdir.at:329;dpkg-query chdir env+opt admindir;dpkg-query command-line chdir;
+66;chdir.at:329;dpkg-query chdir env+opt root;dpkg-query command-line chdir;
+67;chdir.at:329;dpkg-query chdir env+opt root+admindir;dpkg-query command-line chdir;
+68;chdir.at:329;dpkg-trigger chdir opts;dpkg-trigger command-line chdir;
+69;chdir.at:329;dpkg-trigger chdir env;dpkg-trigger command-line chdir;
+70;chdir.at:329;dpkg-trigger chdir env+opt admindir;dpkg-trigger command-line chdir;
+71;chdir.at:329;dpkg-trigger chdir env+opt root;dpkg-trigger command-line chdir;
+72;chdir.at:329;dpkg-trigger chdir env+opt root+admindir;dpkg-trigger command-line chdir;
+"
+# List of the all the test groups.
+at_groups_all=`printf "%s\n" "$at_help_all" | sed 's/;.*//'`
+
+# at_fn_validate_ranges NAME...
+# -----------------------------
+# Validate and normalize the test group number contained in each variable
+# NAME. Leading zeroes are treated as decimal.
+at_fn_validate_ranges ()
+{
+  for at_grp
+  do
+    eval at_value=\$$at_grp
+    if test $at_value -lt 1 || test $at_value -gt 72; then
+      printf "%s\n" "invalid test group: $at_value" >&2
+      exit 1
+    fi
+    case $at_value in
+      0*) # We want to treat leading 0 as decimal, like expr and test, but
+	  # AS_VAR_ARITH treats it as octal if it uses $(( )).
+	  # With XSI shells, ${at_value#${at_value%%[1-9]*}} avoids the
+	  # expr fork, but it is not worth the effort to determine if the
+	  # shell supports XSI when the user can just avoid leading 0.
+	  eval $at_grp='`expr $at_value + 0`' ;;
+    esac
+  done
+}
+# List of the tested programs.
+at_tested='"dpkg-deb"
+"dpkg-split"
+"dpkg-realpath"
+"dpkg-divert"
+"dpkg"'
+
+
+at_prev=
+for at_option
+do
+  # If the previous option needs an argument, assign it.
+  if test -n "$at_prev"; then
+    at_option=$at_prev=$at_option
+    at_prev=
+  fi
+
+  case $at_option in
+  *=?*) at_optarg=`expr "X$at_option" : '[^=]*=\(.*\)'` ;;
+  *)    at_optarg= ;;
+  esac
+
+  case $at_option in
+    --help | -h )
+	at_help_p=:
+	;;
+
+    --list | -l )
+	at_list_p=:
+	;;
+
+    --version | -V )
+	at_version_p=:
+	;;
+
+    --clean | -c )
+	at_clean=:
+	;;
+
+    --color )
+	at_color=always
+	;;
+    --color=* )
+	case $at_optarg in
+	no | never | none) at_color=never ;;
+	auto | tty | if-tty) at_color=auto ;;
+	always | yes | force) at_color=always ;;
+	*) at_optname=`echo " $at_option" | sed 's/^ //; s/=.*//'`
+	   as_fn_error $? "unrecognized argument to $at_optname: $at_optarg" ;;
+	esac
+	;;
+
+    --debug | -d )
+	at_debug_p=:
+	;;
+
+    --errexit | -e )
+	at_debug_p=:
+	at_errexit_p=:
+	;;
+
+    --verbose | -v )
+	at_verbose=; at_quiet=:
+	;;
+
+    --trace | -x )
+	at_traceon='set -x'
+	at_trace_echo=echo
+	at_check_filter_trace=at_fn_filter_trace
+	;;
+
+    [0-9] | [0-9][0-9] | [0-9][0-9][0-9] | [0-9][0-9][0-9][0-9])
+	at_fn_validate_ranges at_option
+	as_fn_append at_groups "$at_option$as_nl"
+	;;
+
+    # Ranges
+    [0-9]- | [0-9][0-9]- | [0-9][0-9][0-9]- | [0-9][0-9][0-9][0-9]-)
+	at_range_start=`echo $at_option |tr -d X-`
+	at_fn_validate_ranges at_range_start
+	at_range=`printf "%s\n" "$at_groups_all" | \
+	  sed -ne '/^'$at_range_start'$/,$p'`
+	as_fn_append at_groups "$at_range$as_nl"
+	;;
+
+    -[0-9] | -[0-9][0-9] | -[0-9][0-9][0-9] | -[0-9][0-9][0-9][0-9])
+	at_range_end=`echo $at_option |tr -d X-`
+	at_fn_validate_ranges at_range_end
+	at_range=`printf "%s\n" "$at_groups_all" | \
+	  sed -ne '1,/^'$at_range_end'$/p'`
+	as_fn_append at_groups "$at_range$as_nl"
+	;;
+
+    [0-9]-[0-9] | [0-9]-[0-9][0-9] | [0-9]-[0-9][0-9][0-9] | \
+    [0-9]-[0-9][0-9][0-9][0-9] | [0-9][0-9]-[0-9][0-9] | \
+    [0-9][0-9]-[0-9][0-9][0-9] | [0-9][0-9]-[0-9][0-9][0-9][0-9] | \
+    [0-9][0-9][0-9]-[0-9][0-9][0-9] | \
+    [0-9][0-9][0-9]-[0-9][0-9][0-9][0-9] | \
+    [0-9][0-9][0-9][0-9]-[0-9][0-9][0-9][0-9] )
+	at_range_start=`expr $at_option : '\(.*\)-'`
+	at_range_end=`expr $at_option : '.*-\(.*\)'`
+	if test $at_range_start -gt $at_range_end; then
+	  at_tmp=$at_range_end
+	  at_range_end=$at_range_start
+	  at_range_start=$at_tmp
+	fi
+	at_fn_validate_ranges at_range_start at_range_end
+	at_range=`printf "%s\n" "$at_groups_all" | \
+	  sed -ne '/^'$at_range_start'$/,/^'$at_range_end'$/p'`
+	as_fn_append at_groups "$at_range$as_nl"
+	;;
+
+    # Directory selection.
+    --directory | -C )
+	at_prev=--directory
+	;;
+    --directory=* )
+	at_change_dir=:
+	at_dir=$at_optarg
+	if test x- = "x$at_dir" ; then
+	  at_dir=./-
+	fi
+	;;
+
+    # Parallel execution.
+    --jobs | -j )
+	at_jobs=0
+	;;
+    --jobs=* | -j[0-9]* )
+	if test -n "$at_optarg"; then
+	  at_jobs=$at_optarg
+	else
+	  at_jobs=`expr X$at_option : 'X-j\(.*\)'`
+	fi
+	case $at_jobs in *[!0-9]*)
+	  at_optname=`echo " $at_option" | sed 's/^ //; s/[0-9=].*//'`
+	  as_fn_error $? "non-numeric argument to $at_optname: $at_jobs" ;;
+	esac
+	;;
+
+    # Keywords.
+    --keywords | -k )
+	at_prev=--keywords
+	;;
+    --keywords=* )
+	at_groups_selected=$at_help_all
+	at_save_IFS=$IFS
+	IFS=,
+	set X $at_optarg
+	shift
+	IFS=$at_save_IFS
+	for at_keyword
+	do
+	  at_invert=
+	  case $at_keyword in
+	  '!'*)
+	    at_invert="-v"
+	    at_keyword=`expr "X$at_keyword" : 'X!\(.*\)'`
+	    ;;
+	  esac
+	  # It is on purpose that we match the test group titles too.
+	  at_groups_selected=`printf "%s\n" "$at_groups_selected" |
+	      grep -i $at_invert "^[1-9][^;]*;.*[; ]$at_keyword[ ;]"`
+	done
+	# Smash the keywords.
+	at_groups_selected=`printf "%s\n" "$at_groups_selected" | sed 's/;.*//'`
+	as_fn_append at_groups "$at_groups_selected$as_nl"
+	;;
+    --recheck)
+	at_recheck=:
+	;;
+
+    *=*)
+	at_envvar=`expr "x$at_option" : 'x\([^=]*\)='`
+	# Reject names that are not valid shell variable names.
+	case $at_envvar in
+	  '' | [0-9]* | *[!_$as_cr_alnum]* )
+	    as_fn_error $? "invalid variable name: \`$at_envvar'" ;;
+	esac
+	at_value=`printf "%s\n" "$at_optarg" | sed "s/'/'\\\\\\\\''/g"`
+	# Export now, but save eval for later and for debug scripts.
+	export $at_envvar
+	as_fn_append at_debug_args " $at_envvar='$at_value'"
+	;;
+
+     *) printf "%s\n" "$as_me: invalid option: $at_option" >&2
+	printf "%s\n" "Try \`$0 --help' for more information." >&2
+	exit 1
+	;;
+  esac
+done
+
+# Verify our last option didn't require an argument
+if test -n "$at_prev"
+then :
+  as_fn_error $? "\`$at_prev' requires an argument"
+fi
+
+# The file containing the suite.
+at_suite_log=$at_dir/$as_me.log
+
+# Selected test groups.
+if test -z "$at_groups$at_recheck"; then
+  at_groups=$at_groups_all
+else
+  if test -n "$at_recheck" && test -r "$at_suite_log"; then
+    at_oldfails=`sed -n '
+      /^Failed tests:$/,/^Skipped tests:$/{
+	s/^[ ]*\([1-9][0-9]*\):.*/\1/p
+      }
+      /^Unexpected passes:$/,/^## Detailed failed tests/{
+	s/^[ ]*\([1-9][0-9]*\):.*/\1/p
+      }
+      /^## Detailed failed tests/q
+      ' "$at_suite_log"`
+    as_fn_append at_groups "$at_oldfails$as_nl"
+  fi
+  # Sort the tests, removing duplicates.
+  at_groups=`printf "%s\n" "$at_groups" | sort -nu | sed '/^$/d'`
+fi
+
+if test x"$at_color" = xalways \
+   || { test x"$at_color" = xauto && test -t 1; }; then
+  at_red=`printf '\033[0;31m'`
+  at_grn=`printf '\033[0;32m'`
+  at_lgn=`printf '\033[1;32m'`
+  at_blu=`printf '\033[1;34m'`
+  at_std=`printf '\033[m'`
+else
+  at_red= at_grn= at_lgn= at_blu= at_std=
+fi
+
+# Help message.
+if $at_help_p; then
+  cat <<_ATEOF || at_write_fail=1
+Usage: $0 [OPTION]... [VARIABLE=VALUE]... [TESTS]
+
+Run all the tests, or the selected TESTS, given by numeric ranges, and
+save a detailed log file.  Upon failure, create debugging scripts.
+
+Do not change environment variables directly.  Instead, set them via
+command line arguments.  Set \`AUTOTEST_PATH' to select the executables
+to exercise.  Each relative directory is expanded as build and source
+directories relative to the top level of this distribution.
+E.g., from within the build directory /tmp/foo-1.0, invoking this:
+
+  $ $0 AUTOTEST_PATH=bin
+
+is equivalent to the following, assuming the source directory is /src/foo-1.0:
+
+  PATH=/tmp/foo-1.0/bin:/src/foo-1.0/bin:\$PATH $0
+_ATEOF
+cat <<_ATEOF || at_write_fail=1
+
+Operation modes:
+  -h, --help     print the help message, then exit
+  -V, --version  print version number, then exit
+  -c, --clean    remove all the files this test suite might create and exit
+  -l, --list     describes all the tests, or the selected TESTS
+_ATEOF
+cat <<_ATEOF || at_write_fail=1
+
+Execution tuning:
+  -C, --directory=DIR
+                 change to directory DIR before starting
+      --color[=never|auto|always]
+                 disable colored test results, or enable even without terminal
+  -j, --jobs[=N]
+                 Allow N jobs at once; infinite jobs with no arg (default 1)
+  -k, --keywords=KEYWORDS
+                 select the tests matching all the comma-separated KEYWORDS
+                 multiple \`-k' accumulate; prefixed \`!' negates a KEYWORD
+      --recheck  select all tests that failed or passed unexpectedly last time
+  -e, --errexit  abort as soon as a test fails; implies --debug
+  -v, --verbose  force more detailed output
+                 default for debugging scripts
+  -d, --debug    inhibit clean up and top-level logging
+                 default for debugging scripts
+  -x, --trace    enable tests shell tracing
+_ATEOF
+cat <<_ATEOF || at_write_fail=1
+
+Report bugs to <debian-dpkg@lists.debian.org>.
+dpkg home page: <https://wiki.debian.org/Teams/Dpkg>.
+_ATEOF
+  exit $at_write_fail
+fi
+
+# List of tests.
+if $at_list_p; then
+  cat <<_ATEOF || at_write_fail=1
+dpkg 1.22.4 test suite: dpkg tools functional test suite test groups:
+
+ NUM: FILE-NAME:LINE     TEST-GROUP-NAME
+      KEYWORDS
+
+_ATEOF
+  # Pass an empty line as separator between selected groups and help.
+  printf "%s\n" "$at_groups$as_nl$as_nl$at_help_all" |
+    awk 'NF == 1 && FS != ";" {
+	   selected[$ 1] = 1
+	   next
+	 }
+	 /^$/ { FS = ";" }
+	 NF > 0 {
+	   if (selected[$ 1]) {
+	     printf " %3d: %-18s %s\n", $ 1, $ 2, $ 3
+	     if ($ 4) {
+	       lmax = 79
+	       indent = "     "
+	       line = indent
+	       len = length (line)
+	       n = split ($ 4, a, " ")
+	       for (i = 1; i <= n; i++) {
+		 l = length (a[i]) + 1
+		 if (i > 1 && len + l > lmax) {
+		   print line
+		   line = indent " " a[i]
+		   len = length (line)
+		 } else {
+		   line = line " " a[i]
+		   len += l
+		 }
+	       }
+	       if (n)
+		 print line
+	     }
+	   }
+	 }' || at_write_fail=1
+  exit $at_write_fail
+fi
+if $at_version_p; then
+  printf "%s\n" "$as_me (dpkg 1.22.4)" &&
+  cat <<\_ATEOF || at_write_fail=1
+
+Copyright (C) 2021 Free Software Foundation, Inc.
+This test suite is free software; the Free Software Foundation gives
+unlimited permission to copy, distribute and modify it.
+_ATEOF
+  exit $at_write_fail
+fi
+
+# Should we print banners?  Yes if more than one test is run.
+case $at_groups in #(
+  *$as_nl* )
+      at_print_banners=: ;; #(
+  * ) at_print_banners=false ;;
+esac
+# Text for banner N, set to a single space once printed.
+# Banner 1. testsuite.at:5
+# Category starts at test group 1.
+at_banner_text_1="Binary .deb packages"
+# Banner 2. testsuite.at:11
+# Category starts at test group 10.
+at_banner_text_2="Split .deb packages"
+# Banner 3. testsuite.at:15
+# Category starts at test group 12.
+at_banner_text_3="Resolve pathnames"
+# Banner 4. testsuite.at:19
+# Category starts at test group 14.
+at_banner_text_4="Diversions"
+# Banner 5. testsuite.at:23
+# Category starts at test group 43.
+at_banner_text_5="Change directory options"
+
+# Take any -C into account.
+if $at_change_dir ; then
+  test x != "x$at_dir" && cd "$at_dir" \
+    || as_fn_error $? "unable to change directory"
+  at_dir=`pwd`
+fi
+
+# Load the config files for any default variable assignments.
+for at_file in atconfig atlocal
+do
+  test -r $at_file || continue
+  . ./$at_file || as_fn_error $? "invalid content: $at_file"
+done
+
+# Autoconf <=2.59b set at_top_builddir instead of at_top_build_prefix:
+: "${at_top_build_prefix=$at_top_builddir}"
+
+# Perform any assignments requested during argument parsing.
+eval "$at_debug_args"
+
+# atconfig delivers names relative to the directory the test suite is
+# in, but the groups themselves are run in testsuite-dir/group-dir.
+if test -n "$at_top_srcdir"; then
+  builddir=../..
+  for at_dir_var in srcdir top_srcdir top_build_prefix
+  do
+    eval at_val=\$at_$at_dir_var
+    case $at_val in
+      [\\/$]* | ?:[\\/]* ) at_prefix= ;;
+      *) at_prefix=../../ ;;
+    esac
+    eval "$at_dir_var=\$at_prefix\$at_val"
+  done
+fi
+
+## -------------------- ##
+## Directory structure. ##
+## -------------------- ##
+
+# This is the set of directories and files used by this script
+# (non-literals are capitalized):
+#
+# TESTSUITE         - the testsuite
+# TESTSUITE.log     - summarizes the complete testsuite run
+# TESTSUITE.dir/    - created during a run, remains after -d or failed test
+# + at-groups/      - during a run: status of all groups in run
+# | + NNN/          - during a run: meta-data about test group NNN
+# | | + check-line  - location (source file and line) of current AT_CHECK
+# | | + status      - exit status of current AT_CHECK
+# | | + stdout      - stdout of current AT_CHECK
+# | | + stder1      - stderr, including trace
+# | | + stderr      - stderr, with trace filtered out
+# | | + test-source - portion of testsuite that defines group
+# | | + times       - timestamps for computing duration
+# | | + pass        - created if group passed
+# | | + xpass       - created if group xpassed
+# | | + fail        - created if group failed
+# | | + xfail       - created if group xfailed
+# | | + skip        - created if group skipped
+# + at-stop         - during a run: end the run if this file exists
+# + at-source-lines - during a run: cache of TESTSUITE line numbers for extraction
+# + 0..NNN/         - created for each group NNN, remains after -d or failed test
+# | + TESTSUITE.log - summarizes the group results
+# | + ...           - files created during the group
+
+# The directory the whole suite works in.
+# Should be absolute to let the user `cd' at will.
+at_suite_dir=$at_dir/$as_me.dir
+# The file containing the suite ($at_dir might have changed since earlier).
+at_suite_log=$at_dir/$as_me.log
+# The directory containing helper files per test group.
+at_helper_dir=$at_suite_dir/at-groups
+# Stop file: if it exists, do not start new jobs.
+at_stop_file=$at_suite_dir/at-stop
+# The fifo used for the job dispatcher.
+at_job_fifo=$at_suite_dir/at-job-fifo
+
+if $at_clean; then
+  test -d "$at_suite_dir" &&
+    find "$at_suite_dir" -type d ! -perm -700 -exec chmod u+rwx \{\} \;
+  rm -f -r "$at_suite_dir" "$at_suite_log"
+  exit $?
+fi
+
+# Don't take risks: use only absolute directories in PATH.
+#
+# For stand-alone test suites (ie. atconfig was not found),
+# AUTOTEST_PATH is relative to `.'.
+#
+# For embedded test suites, AUTOTEST_PATH is relative to the top level
+# of the package.  Then expand it into build/src parts, since users
+# may create executables in both places.
+AUTOTEST_PATH=`printf "%s\n" "$AUTOTEST_PATH" | sed "s|:|$PATH_SEPARATOR|g"`
+at_path=
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $AUTOTEST_PATH $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    test -n "$at_path" && as_fn_append at_path $PATH_SEPARATOR
+case $as_dir in
+  [\\/]* | ?:[\\/]* )
+    as_fn_append at_path "$as_dir"
+    ;;
+  * )
+    if test -z "$at_top_build_prefix"; then
+      # Stand-alone test suite.
+      as_fn_append at_path "$as_dir"
+    else
+      # Embedded test suite.
+      as_fn_append at_path "$at_top_build_prefix$as_dir$PATH_SEPARATOR"
+      as_fn_append at_path "$at_top_srcdir/$as_dir"
+    fi
+    ;;
+esac
+  done
+IFS=$as_save_IFS
+
+
+# Now build and simplify PATH.
+#
+# There might be directories that don't exist, but don't redirect
+# builtins' (eg., cd) stderr directly: Ultrix's sh hates that.
+at_new_path=
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $at_path
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    test -d "$as_dir" || continue
+case $as_dir in
+  [\\/]* | ?:[\\/]* ) ;;
+  * ) as_dir=`(cd "$as_dir" && pwd) 2>/dev/null` ;;
+esac
+case $PATH_SEPARATOR$at_new_path$PATH_SEPARATOR in
+  *$PATH_SEPARATOR$as_dir$PATH_SEPARATOR*) ;;
+  $PATH_SEPARATOR$PATH_SEPARATOR) at_new_path=$as_dir ;;
+  *) as_fn_append at_new_path "$PATH_SEPARATOR$as_dir" ;;
+esac
+  done
+IFS=$as_save_IFS
+
+PATH=$at_new_path
+export PATH
+
+# Setting up the FDs.
+
+
+
+# 5 is the log file.  Not to be overwritten if `-d'.
+if $at_debug_p; then
+  at_suite_log=/dev/null
+else
+  : >"$at_suite_log"
+fi
+exec 5>>"$at_suite_log"
+
+# Banners and logs.
+printf "%s\n" "## --------------------------------------------------------- ##
+## dpkg 1.22.4 test suite: dpkg tools functional test suite. ##
+## --------------------------------------------------------- ##"
+{
+  printf "%s\n" "## --------------------------------------------------------- ##
+## dpkg 1.22.4 test suite: dpkg tools functional test suite. ##
+## --------------------------------------------------------- ##"
+  echo
+
+  printf "%s\n" "$as_me: command line was:"
+  printf "%s\n" "  \$ $0 $at_cli_args"
+  echo
+
+  # If ChangeLog exists, list a few lines in case it might help determining
+  # the exact version.
+  if test -n "$at_top_srcdir" && test -f "$at_top_srcdir/ChangeLog"; then
+    printf "%s\n" "## ---------- ##
+## ChangeLog. ##
+## ---------- ##"
+    echo
+    sed 's/^/| /;10q' "$at_top_srcdir/ChangeLog"
+    echo
+  fi
+
+  {
+cat <<_ASUNAME
+## --------- ##
+## Platform. ##
+## --------- ##
+
+hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
+/bin/uname -X     = `(/bin/uname -X) 2>/dev/null     || echo unknown`
+
+/bin/arch              = `(/bin/arch) 2>/dev/null              || echo unknown`
+/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null       || echo unknown`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
+/usr/bin/hostinfo      = `(/usr/bin/hostinfo) 2>/dev/null      || echo unknown`
+/bin/machine           = `(/bin/machine) 2>/dev/null           || echo unknown`
+/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null       || echo unknown`
+/bin/universe          = `(/bin/universe) 2>/dev/null          || echo unknown`
+
+_ASUNAME
+
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    printf "%s\n" "PATH: $as_dir"
+  done
+IFS=$as_save_IFS
+
+}
+  echo
+
+  # Contents of the config files.
+  for at_file in atconfig atlocal
+  do
+    test -r $at_file || continue
+    printf "%s\n" "$as_me: $at_file:"
+    sed 's/^/| /' $at_file
+    echo
+  done
+} >&5
+
+
+## ------------------------- ##
+## Autotest shell functions. ##
+## ------------------------- ##
+
+# at_fn_banner NUMBER
+# -------------------
+# Output banner NUMBER, provided the testsuite is running multiple groups and
+# this particular banner has not yet been printed.
+at_fn_banner ()
+{
+  $at_print_banners || return 0
+  eval at_banner_text=\$at_banner_text_$1
+  test "x$at_banner_text" = "x " && return 0
+  eval "at_banner_text_$1=\" \""
+  if test -z "$at_banner_text"; then
+    $at_first || echo
+  else
+    printf "%s\n" "$as_nl$at_banner_text$as_nl"
+  fi
+} # at_fn_banner
+
+# at_fn_check_prepare_notrace REASON LINE
+# ---------------------------------------
+# Perform AT_CHECK preparations for the command at LINE for an untraceable
+# command; REASON is the reason for disabling tracing.
+at_fn_check_prepare_notrace ()
+{
+  $at_trace_echo "Not enabling shell tracing (command contains $1)"
+  printf "%s\n" "$2" >"$at_check_line_file"
+  at_check_trace=: at_check_filter=:
+  : >"$at_stdout"; : >"$at_stderr"
+}
+
+# at_fn_check_prepare_trace LINE
+# ------------------------------
+# Perform AT_CHECK preparations for the command at LINE for a traceable
+# command.
+at_fn_check_prepare_trace ()
+{
+  printf "%s\n" "$1" >"$at_check_line_file"
+  at_check_trace=$at_traceon at_check_filter=$at_check_filter_trace
+  : >"$at_stdout"; : >"$at_stderr"
+}
+
+# at_fn_check_prepare_dynamic COMMAND LINE
+# ----------------------------------------
+# Decide if COMMAND at LINE is traceable at runtime, and call the appropriate
+# preparation function.
+at_fn_check_prepare_dynamic ()
+{
+  case $1 in
+    *$as_nl*)
+      at_fn_check_prepare_notrace 'an embedded newline' "$2" ;;
+    *)
+      at_fn_check_prepare_trace "$2" ;;
+  esac
+}
+
+# at_fn_filter_trace
+# ------------------
+# Remove the lines in the file "$at_stderr" generated by "set -x" and print
+# them to stderr.
+at_fn_filter_trace ()
+{
+  mv "$at_stderr" "$at_stder1"
+  grep '^ *+' "$at_stder1" >&2
+  grep -v '^ *+' "$at_stder1" >"$at_stderr"
+}
+
+# at_fn_log_failure FILE-LIST
+# ---------------------------
+# Copy the files in the list on stdout with a "> " prefix, and exit the shell
+# with a failure exit code.
+at_fn_log_failure ()
+{
+  for file
+    do printf "%s\n" "$file:"; sed 's/^/> /' "$file"; done
+  echo 1 > "$at_status_file"
+  exit 1
+}
+
+# at_fn_check_skip EXIT-CODE LINE
+# -------------------------------
+# Check whether EXIT-CODE is a special exit code (77 or 99), and if so exit
+# the test group subshell with that same exit code. Use LINE in any report
+# about test failure.
+at_fn_check_skip ()
+{
+  case $1 in
+    99) echo 99 > "$at_status_file"; at_failed=:
+	printf "%s\n" "$2: hard failure"; exit 99;;
+    77) echo 77 > "$at_status_file"; exit 77;;
+  esac
+}
+
+# at_fn_check_status EXPECTED EXIT-CODE LINE
+# ------------------------------------------
+# Check whether EXIT-CODE is the EXPECTED exit code, and if so do nothing.
+# Otherwise, if it is 77 or 99, exit the test group subshell with that same
+# exit code; if it is anything else print an error message referring to LINE,
+# and fail the test.
+at_fn_check_status ()
+{
+  case $2 in
+    $1 ) ;;
+    77) echo 77 > "$at_status_file"; exit 77;;
+    99) echo 99 > "$at_status_file"; at_failed=:
+	printf "%s\n" "$3: hard failure"; exit 99;;
+    *) printf "%s\n" "$3: exit code was $2, expected $1"
+      at_failed=:;;
+  esac
+}
+
+# at_fn_diff_devnull FILE
+# -----------------------
+# Emit a diff between /dev/null and FILE. Uses "test -s" to avoid useless diff
+# invocations.
+at_fn_diff_devnull ()
+{
+  test -s "$1" || return 0
+  $at_diff "$at_devnull" "$1"
+}
+
+# at_fn_test NUMBER
+# -----------------
+# Parse out test NUMBER from the tail of this file.
+at_fn_test ()
+{
+  eval at_sed=\$at_sed$1
+  sed "$at_sed" "$at_myself" > "$at_test_source"
+}
+
+# at_fn_create_debugging_script
+# -----------------------------
+# Create the debugging script $at_group_dir/run which will reproduce the
+# current test group.
+at_fn_create_debugging_script ()
+{
+  {
+    echo "#! /bin/sh" &&
+    echo 'test ${ZSH_VERSION+y} && alias -g '\''${1+"$@"}'\''='\''"$@"'\''' &&
+    printf "%s\n" "cd '$at_dir'" &&
+    printf "%s\n" "exec \${CONFIG_SHELL-$SHELL} \"$at_myself\" -v -d $at_debug_args $at_group \${1+\"\$@\"}" &&
+    echo 'exit 1'
+  } >"$at_group_dir/run" &&
+  chmod +x "$at_group_dir/run"
+}
+
+## -------------------------------- ##
+## End of autotest shell functions. ##
+## -------------------------------- ##
+{
+  printf "%s\n" "## ---------------- ##
+## Tested programs. ##
+## ---------------- ##"
+  echo
+} >&5
+
+# Report what programs are being tested.
+for at_program in : `eval echo $at_tested`
+do
+  case $at_program in #(
+  :) :
+    continue ;; #(
+  [\\/]* | ?:[\\/]*) :
+    at_program_=$at_program ;; #(
+  *) :
+    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    test -f "$as_dir$at_program" && break
+  done
+IFS=$as_save_IFS
+
+    at_program_=$as_dir$at_program ;;
+esac
+
+  if test -f "$at_program_"; then
+    {
+      printf "%s\n" "$at_srcdir/testsuite.at:1: $at_program_ --version"
+      "$at_program_" --version </dev/null
+      echo
+    } >&5 2>&1
+  else
+    as_fn_error $? "cannot find $at_program" "$LINENO" 5
+  fi
+done
+
+{
+  printf "%s\n" "## ------------------ ##
+## Running the tests. ##
+## ------------------ ##"
+} >&5
+
+at_start_date=`date`
+at_start_time=`date +%s 2>/dev/null`
+printf "%s\n" "$as_me: starting at: $at_start_date" >&5
+
+# Create the master directory if it doesn't already exist.
+as_dir="$at_suite_dir"; as_fn_mkdir_p ||
+  as_fn_error $? "cannot create \`$at_suite_dir'" "$LINENO" 5
+
+# Can we diff with `/dev/null'?  DU 5.0 refuses.
+if diff /dev/null /dev/null >/dev/null 2>&1; then
+  at_devnull=/dev/null
+else
+  at_devnull=$at_suite_dir/devnull
+  >"$at_devnull"
+fi
+
+# Use `diff -u' when possible.
+if at_diff=`diff -u "$at_devnull" "$at_devnull" 2>&1` && test -z "$at_diff"
+then
+  at_diff='diff -u'
+else
+  at_diff=diff
+fi
+
+# Get the last needed group.
+for at_group in : $at_groups; do :; done
+
+# Extract the start and end lines of each test group at the tail
+# of this file
+awk '
+BEGIN { FS="" }
+/^#AT_START_/ {
+  start = NR
+}
+/^#AT_STOP_/ {
+  test = substr ($ 0, 10)
+  print "at_sed" test "=\"1," start "d;" (NR-1) "q\""
+  if (test == "'"$at_group"'") exit
+}' "$at_myself" > "$at_suite_dir/at-source-lines" &&
+. "$at_suite_dir/at-source-lines" ||
+  as_fn_error $? "cannot create test line number cache" "$LINENO" 5
+rm -f "$at_suite_dir/at-source-lines"
+
+# Set number of jobs for `-j'; avoid more jobs than test groups.
+set X $at_groups; shift; at_max_jobs=$#
+if test $at_max_jobs -eq 0; then
+  at_jobs=1
+fi
+if test $at_jobs -ne 1 &&
+   { test $at_jobs -eq 0 || test $at_jobs -gt $at_max_jobs; }; then
+  at_jobs=$at_max_jobs
+fi
+
+# If parallel mode, don't output banners, don't split summary lines.
+if test $at_jobs -ne 1; then
+  at_print_banners=false
+  at_quiet=:
+fi
+
+# Set up helper dirs.
+rm -rf "$at_helper_dir" &&
+mkdir "$at_helper_dir" &&
+cd "$at_helper_dir" &&
+{ test -z "$at_groups" || mkdir $at_groups; } ||
+as_fn_error $? "testsuite directory setup failed" "$LINENO" 5
+
+# Functions for running a test group.  We leave the actual
+# test group execution outside of a shell function in order
+# to avoid hitting zsh 4.x exit status bugs.
+
+# at_fn_group_prepare
+# -------------------
+# Prepare for running a test group.
+at_fn_group_prepare ()
+{
+  # The directory for additional per-group helper files.
+  at_job_dir=$at_helper_dir/$at_group
+  # The file containing the location of the last AT_CHECK.
+  at_check_line_file=$at_job_dir/check-line
+  # The file containing the exit status of the last command.
+  at_status_file=$at_job_dir/status
+  # The files containing the output of the tested commands.
+  at_stdout=$at_job_dir/stdout
+  at_stder1=$at_job_dir/stder1
+  at_stderr=$at_job_dir/stderr
+  # The file containing the code for a test group.
+  at_test_source=$at_job_dir/test-source
+  # The file containing dates.
+  at_times_file=$at_job_dir/times
+
+  # Be sure to come back to the top test directory.
+  cd "$at_suite_dir"
+
+  # Clearly separate the test groups when verbose.
+  $at_first || $at_verbose echo
+
+  at_group_normalized=$at_group
+
+  eval 'while :; do
+    case $at_group_normalized in #(
+    '"$at_format"'*) break;;
+    esac
+    at_group_normalized=0$at_group_normalized
+  done'
+
+
+  # Create a fresh directory for the next test group, and enter.
+  # If one already exists, the user may have invoked ./run from
+  # within that directory; we remove the contents, but not the
+  # directory itself, so that we aren't pulling the rug out from
+  # under the shell's notion of the current directory.
+  at_group_dir=$at_suite_dir/$at_group_normalized
+  at_group_log=$at_group_dir/$as_me.log
+  if test -d "$at_group_dir"
+then
+  find "$at_group_dir" -type d ! -perm -700 -exec chmod u+rwx {} \;
+  rm -fr "$at_group_dir"/* "$at_group_dir"/.[!.] "$at_group_dir"/.??*
+fi ||
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: test directory for $at_group_normalized could not be cleaned" >&5
+printf "%s\n" "$as_me: WARNING: test directory for $at_group_normalized could not be cleaned" >&2;}
+  # Be tolerant if the above `rm' was not able to remove the directory.
+  as_dir="$at_group_dir"; as_fn_mkdir_p
+
+  echo 0 > "$at_status_file"
+
+  # In verbose mode, append to the log file *and* show on
+  # the standard output; in quiet mode only write to the log.
+  if test -z "$at_verbose"; then
+    at_tee_pipe='tee -a "$at_group_log"'
+  else
+    at_tee_pipe='cat >> "$at_group_log"'
+  fi
+}
+
+# at_fn_group_banner ORDINAL LINE DESC PAD [BANNER]
+# -------------------------------------------------
+# Declare the test group ORDINAL, located at LINE with group description DESC,
+# and residing under BANNER. Use PAD to align the status column.
+at_fn_group_banner ()
+{
+  at_setup_line="$2"
+  test -n "$5" && at_fn_banner $5
+  at_desc="$3"
+  case $1 in
+    [0-9])      at_desc_line="  $1: ";;
+    [0-9][0-9]) at_desc_line=" $1: " ;;
+    *)          at_desc_line="$1: "  ;;
+  esac
+  as_fn_append at_desc_line "$3$4"
+  $at_quiet printf %s "$at_desc_line"
+  echo "#                             -*- compilation -*-" >> "$at_group_log"
+}
+
+# at_fn_group_postprocess
+# -----------------------
+# Perform cleanup after running a test group.
+at_fn_group_postprocess ()
+{
+  # Be sure to come back to the suite directory, in particular
+  # since below we might `rm' the group directory we are in currently.
+  cd "$at_suite_dir"
+
+  if test ! -f "$at_check_line_file"; then
+    sed "s/^ */$as_me: WARNING: /" <<_ATEOF
+      A failure happened in a test group before any test could be
+      run. This means that test suite is improperly designed.  Please
+      report this failure to <debian-dpkg@lists.debian.org>.
+_ATEOF
+    printf "%s\n" "$at_setup_line" >"$at_check_line_file"
+    at_status=99
+  fi
+  $at_verbose printf %s "$at_group. $at_setup_line: "
+  printf %s "$at_group. $at_setup_line: " >> "$at_group_log"
+  case $at_xfail:$at_status in
+    yes:0)
+	at_msg="UNEXPECTED PASS"
+	at_res=xpass
+	at_errexit=$at_errexit_p
+	at_color=$at_red
+	;;
+    no:0)
+	at_msg="ok"
+	at_res=pass
+	at_errexit=false
+	at_color=$at_grn
+	;;
+    *:77)
+	at_msg='skipped ('`cat "$at_check_line_file"`')'
+	at_res=skip
+	at_errexit=false
+	at_color=$at_blu
+	;;
+    no:* | *:99)
+	at_msg='FAILED ('`cat "$at_check_line_file"`')'
+	at_res=fail
+	at_errexit=$at_errexit_p
+	at_color=$at_red
+	;;
+    yes:*)
+	at_msg='expected failure ('`cat "$at_check_line_file"`')'
+	at_res=xfail
+	at_errexit=false
+	at_color=$at_lgn
+	;;
+  esac
+  echo "$at_res" > "$at_job_dir/$at_res"
+  # In parallel mode, output the summary line only afterwards.
+  if test $at_jobs -ne 1 && test -n "$at_verbose"; then
+    printf "%s\n" "$at_desc_line $at_color$at_msg$at_std"
+  else
+    # Make sure there is a separator even with long titles.
+    printf "%s\n" " $at_color$at_msg$at_std"
+  fi
+  at_log_msg="$at_group. $at_desc ($at_setup_line): $at_msg"
+  case $at_status in
+    0|77)
+      # $at_times_file is only available if the group succeeded.
+      # We're not including the group log, so the success message
+      # is written in the global log separately.  But we also
+      # write to the group log in case they're using -d.
+      if test -f "$at_times_file"; then
+	at_log_msg="$at_log_msg     ("`sed 1d "$at_times_file"`')'
+	rm -f "$at_times_file"
+      fi
+      printf "%s\n" "$at_log_msg" >> "$at_group_log"
+      printf "%s\n" "$at_log_msg" >&5
+
+      # Cleanup the group directory, unless the user wants the files
+      # or the success was unexpected.
+      if $at_debug_p || test $at_res = xpass; then
+	at_fn_create_debugging_script
+	if test $at_res = xpass && $at_errexit; then
+	  echo stop > "$at_stop_file"
+	fi
+      else
+	if test -d "$at_group_dir"; then
+	  find "$at_group_dir" -type d ! -perm -700 -exec chmod u+rwx \{\} \;
+	  rm -fr "$at_group_dir"
+	fi
+	rm -f "$at_test_source"
+      fi
+      ;;
+    *)
+      # Upon failure, include the log into the testsuite's global
+      # log.  The failure message is written in the group log.  It
+      # is later included in the global log.
+      printf "%s\n" "$at_log_msg" >> "$at_group_log"
+
+      # Upon failure, keep the group directory for autopsy, and create
+      # the debugging script.  With -e, do not start any further tests.
+      at_fn_create_debugging_script
+      if $at_errexit; then
+	echo stop > "$at_stop_file"
+      fi
+      ;;
+  esac
+}
+
+
+## ------------ ##
+## Driver loop. ##
+## ------------ ##
+
+
+if (set -m && set +m && set +b) >/dev/null 2>&1; then
+  set +b
+  at_job_control_on='set -m' at_job_control_off='set +m' at_job_group=-
+else
+  at_job_control_on=: at_job_control_off=: at_job_group=
+fi
+
+for at_signal in 1 2 15; do
+  trap 'set +x; set +e
+	$at_job_control_off
+	at_signal='"$at_signal"'
+	echo stop > "$at_stop_file"
+	trap "" $at_signal
+	at_pgids=
+	for at_pgid in `jobs -p 2>/dev/null`; do
+	  at_pgids="$at_pgids $at_job_group$at_pgid"
+	done
+	test -z "$at_pgids" || kill -$at_signal $at_pgids 2>/dev/null
+	wait
+	if test "$at_jobs" -eq 1 || test -z "$at_verbose"; then
+	  echo >&2
+	fi
+	at_signame=`kill -l $at_signal 2>&1 || echo $at_signal`
+	set x $at_signame
+	test 1 -gt 2 && at_signame=$at_signal
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: caught signal $at_signame, bailing out" >&5
+printf "%s\n" "$as_me: WARNING: caught signal $at_signame, bailing out" >&2;}
+	as_fn_arith 128 + $at_signal && exit_status=$as_val
+	as_fn_exit $exit_status' $at_signal
+done
+
+rm -f "$at_stop_file"
+at_first=:
+
+if test $at_jobs -ne 1 &&
+     rm -f "$at_job_fifo" &&
+     test -n "$at_job_group" &&
+     ( mkfifo "$at_job_fifo" && trap 'exit 1' PIPE STOP TSTP ) 2>/dev/null
+then
+  # FIFO job dispatcher.
+
+  trap 'at_pids=
+	for at_pid in `jobs -p`; do
+	  at_pids="$at_pids $at_job_group$at_pid"
+	done
+	if test -n "$at_pids"; then
+	  at_sig=TSTP
+	  test ${TMOUT+y} && at_sig=STOP
+	  kill -$at_sig $at_pids 2>/dev/null
+	fi
+	kill -STOP $$
+	test -z "$at_pids" || kill -CONT $at_pids 2>/dev/null' TSTP
+
+  echo
+  # Turn jobs into a list of numbers, starting from 1.
+  at_joblist=`printf "%s\n" "$at_groups" | sed -n 1,${at_jobs}p`
+
+  set X $at_joblist
+  shift
+  for at_group in $at_groups; do
+    $at_job_control_on 2>/dev/null
+    (
+      # Start one test group.
+      $at_job_control_off
+      if $at_first; then
+	exec 7>"$at_job_fifo"
+      else
+	exec 6<&-
+      fi
+      trap 'set +x; set +e
+	    trap "" PIPE
+	    echo stop > "$at_stop_file"
+	    echo >&7
+	    as_fn_exit 141' PIPE
+      at_fn_group_prepare
+      if cd "$at_group_dir" &&
+	 at_fn_test $at_group &&
+	 . "$at_test_source"
+      then :; else
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: unable to parse test group: $at_group" >&5
+printf "%s\n" "$as_me: WARNING: unable to parse test group: $at_group" >&2;}
+	at_failed=:
+      fi
+      at_fn_group_postprocess
+      echo >&7
+    ) &
+    $at_job_control_off
+    if $at_first; then
+      at_first=false
+      exec 6<"$at_job_fifo" 7>"$at_job_fifo"
+    fi
+    shift # Consume one token.
+    if test $# -gt 0; then :; else
+      read at_token <&6 || break
+      set x $*
+    fi
+    test -f "$at_stop_file" && break
+  done
+  exec 7>&-
+  # Read back the remaining ($at_jobs - 1) tokens.
+  set X $at_joblist
+  shift
+  if test $# -gt 0; then
+    shift
+    for at_job
+    do
+      read at_token
+    done <&6
+  fi
+  exec 6<&-
+  wait
+else
+  # Run serially, avoid forks and other potential surprises.
+  for at_group in $at_groups; do
+    at_fn_group_prepare
+    if cd "$at_group_dir" &&
+       at_fn_test $at_group &&
+       . "$at_test_source"; then :; else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: unable to parse test group: $at_group" >&5
+printf "%s\n" "$as_me: WARNING: unable to parse test group: $at_group" >&2;}
+      at_failed=:
+    fi
+    at_fn_group_postprocess
+    test -f "$at_stop_file" && break
+    at_first=false
+  done
+fi
+
+# Wrap up the test suite with summary statistics.
+cd "$at_helper_dir"
+
+# Use ?..???? when the list must remain sorted, the faster * otherwise.
+at_pass_list=`for f in */pass; do echo $f; done | sed '/\*/d; s,/pass,,'`
+at_skip_list=`for f in */skip; do echo $f; done | sed '/\*/d; s,/skip,,'`
+at_xfail_list=`for f in */xfail; do echo $f; done | sed '/\*/d; s,/xfail,,'`
+at_xpass_list=`for f in ?/xpass ??/xpass ???/xpass ????/xpass; do
+		 echo $f; done | sed '/?/d; s,/xpass,,'`
+at_fail_list=`for f in ?/fail ??/fail ???/fail ????/fail; do
+		echo $f; done | sed '/?/d; s,/fail,,'`
+
+set X $at_pass_list $at_xpass_list $at_xfail_list $at_fail_list $at_skip_list
+shift; at_group_count=$#
+set X $at_xpass_list; shift; at_xpass_count=$#; at_xpass_list=$*
+set X $at_xfail_list; shift; at_xfail_count=$#
+set X $at_fail_list; shift; at_fail_count=$#; at_fail_list=$*
+set X $at_skip_list; shift; at_skip_count=$#
+
+as_fn_arith $at_group_count - $at_skip_count && at_run_count=$as_val
+as_fn_arith $at_xpass_count + $at_fail_count && at_unexpected_count=$as_val
+as_fn_arith $at_xfail_count + $at_fail_count && at_total_fail_count=$as_val
+
+# Back to the top directory.
+cd "$at_dir"
+rm -rf "$at_helper_dir"
+
+# Compute the duration of the suite.
+at_stop_date=`date`
+at_stop_time=`date +%s 2>/dev/null`
+printf "%s\n" "$as_me: ending at: $at_stop_date" >&5
+case $at_start_time,$at_stop_time in
+  [0-9]*,[0-9]*)
+    as_fn_arith $at_stop_time - $at_start_time && at_duration_s=$as_val
+    as_fn_arith $at_duration_s / 60 && at_duration_m=$as_val
+    as_fn_arith $at_duration_m / 60 && at_duration_h=$as_val
+    as_fn_arith $at_duration_s % 60 && at_duration_s=$as_val
+    as_fn_arith $at_duration_m % 60 && at_duration_m=$as_val
+    at_duration="${at_duration_h}h ${at_duration_m}m ${at_duration_s}s"
+    printf "%s\n" "$as_me: test suite duration: $at_duration" >&5
+    ;;
+esac
+
+echo
+printf "%s\n" "## ------------- ##
+## Test results. ##
+## ------------- ##"
+echo
+{
+  echo
+  printf "%s\n" "## ------------- ##
+## Test results. ##
+## ------------- ##"
+  echo
+} >&5
+
+if test $at_run_count = 1; then
+  at_result="1 test"
+  at_were=was
+else
+  at_result="$at_run_count tests"
+  at_were=were
+fi
+if $at_errexit_p && test $at_unexpected_count != 0; then
+  if test $at_xpass_count = 1; then
+    at_result="$at_result $at_were run, one passed"
+  else
+    at_result="$at_result $at_were run, one failed"
+  fi
+  at_result="$at_result unexpectedly and inhibited subsequent tests."
+  at_color=$at_red
+else
+  # Don't you just love exponential explosion of the number of cases?
+  at_color=$at_red
+  case $at_xpass_count:$at_fail_count:$at_xfail_count in
+    # So far, so good.
+    0:0:0) at_result="$at_result $at_were successful." at_color=$at_grn ;;
+    0:0:*) at_result="$at_result behaved as expected." at_color=$at_lgn ;;
+
+    # Some unexpected failures
+    0:*:0) at_result="$at_result $at_were run,
+$at_fail_count failed unexpectedly." ;;
+
+    # Some failures, both expected and unexpected
+    0:*:1) at_result="$at_result $at_were run,
+$at_total_fail_count failed ($at_xfail_count expected failure)." ;;
+    0:*:*) at_result="$at_result $at_were run,
+$at_total_fail_count failed ($at_xfail_count expected failures)." ;;
+
+    # No unexpected failures, but some xpasses
+    *:0:*) at_result="$at_result $at_were run,
+$at_xpass_count passed unexpectedly." ;;
+
+    # No expected failures, but failures and xpasses
+    *:1:0) at_result="$at_result $at_were run,
+$at_unexpected_count did not behave as expected ($at_fail_count unexpected failure)." ;;
+    *:*:0) at_result="$at_result $at_were run,
+$at_unexpected_count did not behave as expected ($at_fail_count unexpected failures)." ;;
+
+    # All of them.
+    *:*:1) at_result="$at_result $at_were run,
+$at_xpass_count passed unexpectedly,
+$at_total_fail_count failed ($at_xfail_count expected failure)." ;;
+    *:*:*) at_result="$at_result $at_were run,
+$at_xpass_count passed unexpectedly,
+$at_total_fail_count failed ($at_xfail_count expected failures)." ;;
+  esac
+
+  if test $at_skip_count = 0 && test $at_run_count -gt 1; then
+    at_result="All $at_result"
+  fi
+fi
+
+# Now put skips in the mix.
+case $at_skip_count in
+  0) ;;
+  1) at_result="$at_result
+1 test was skipped." ;;
+  *) at_result="$at_result
+$at_skip_count tests were skipped." ;;
+esac
+
+if test $at_unexpected_count = 0; then
+  echo "$at_color$at_result$at_std"
+  echo "$at_result" >&5
+else
+  echo "${at_color}ERROR: $at_result$at_std" >&2
+  echo "ERROR: $at_result" >&5
+  {
+    echo
+    printf "%s\n" "## ------------------------ ##
+## Summary of the failures. ##
+## ------------------------ ##"
+
+    # Summary of failed and skipped tests.
+    if test $at_fail_count != 0; then
+      echo "Failed tests:"
+      $SHELL "$at_myself" $at_fail_list --list
+      echo
+    fi
+    if test $at_skip_count != 0; then
+      echo "Skipped tests:"
+      $SHELL "$at_myself" $at_skip_list --list
+      echo
+    fi
+    if test $at_xpass_count != 0; then
+      echo "Unexpected passes:"
+      $SHELL "$at_myself" $at_xpass_list --list
+      echo
+    fi
+    if test $at_fail_count != 0; then
+      printf "%s\n" "## ---------------------- ##
+## Detailed failed tests. ##
+## ---------------------- ##"
+      echo
+      for at_group in $at_fail_list
+      do
+	at_group_normalized=$at_group
+
+  eval 'while :; do
+    case $at_group_normalized in #(
+    '"$at_format"'*) break;;
+    esac
+    at_group_normalized=0$at_group_normalized
+  done'
+
+	cat "$at_suite_dir/$at_group_normalized/$as_me.log"
+	echo
+      done
+      echo
+    fi
+    if test -n "$at_top_srcdir"; then
+      sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
+## ${at_top_build_prefix}config.log ##
+_ASBOX
+      sed 's/^/| /' ${at_top_build_prefix}config.log
+      echo
+    fi
+  } >&5
+
+  sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
+## $as_me.log was created. ##
+_ASBOX
+
+  echo
+  if $at_debug_p; then
+    at_msg='per-test log files'
+  else
+    at_msg="\`${at_testdir+${at_testdir}/}$as_me.log'"
+  fi
+  at_msg1a=${at_xpass_list:+', '}
+  at_msg1=$at_fail_list${at_fail_list:+" failed$at_msg1a"}
+  at_msg2=$at_xpass_list${at_xpass_list:+" passed unexpectedly"}
+
+  printf "%s\n" "Please send $at_msg and all information you think might help:
+
+   To: <debian-dpkg@lists.debian.org>
+   Subject: [dpkg 1.22.4] $as_me: $at_msg1$at_msg2
+
+You may investigate any problem if you feel able to do so, in which
+case the test suite provides a good starting point.  Its output may
+be found below \`${at_testdir+${at_testdir}/}$as_me.dir'.
+"
+  exit 1
+fi
+
+exit 0
+
+## ------------- ##
+## Actual tests. ##
+## ------------- ##
+#AT_START_1
+at_fn_group_banner 1 'deb-format.at:1' \
+  "dpkg-deb options" "                               " 1
+at_xfail=no
+(
+  printf "%s\n" "1. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:4: dpkg-deb --version"
+at_fn_check_prepare_trace "deb-format.at:4"
+( $at_check_trace; dpkg-deb --version
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:4"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:5: dpkg-deb --help"
+at_fn_check_prepare_trace "deb-format.at:5"
+( $at_check_trace; dpkg-deb --help
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_1
+#AT_START_2
+at_fn_group_banner 2 'deb-format.at:10' \
+  "dpkg-deb .deb format 0.93x" "                     " 1
+at_xfail=no
+(
+  printf "%s\n" "2. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+printf "%s\n" "deb-format.at:13" >"$at_check_line_file"
+(! command -v gzip >/dev/null) \
+  && at_fn_check_skip 77 "$at_srcdir/deb-format.at:13"
+
+cat >pkg-deb-old-bogus-only-version.deb <<'_ATEOF'
+0.93
+_ATEOF
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:17:
+# Check truncated old deb w/ only version magic
+dpkg-deb --info pkg-deb-old-bogus-only-version.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:17"
+( $at_check_trace;
+# Check truncated old deb w/ only version magic
+dpkg-deb --info pkg-deb-old-bogus-only-version.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "dpkg-deb: error: unexpected end of file in archive control member size in pkg-deb-old-bogus-only-version.deb
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/deb-format.at:17"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+
+  mkdir -p 'pkg-deb-old-format/DEBIAN'
+
+  cat >'pkg-deb-old-format/DEBIAN/control' <<CTRL_TEMPL
+Package: pkg-deb-old-format
+Version: 0.0-1
+Section: test
+Priority: extra
+Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+Architecture: all
+Description: test package
+CTRL_TEMPL
+
+
+
+  $PERL -p -i -E 's/^Description:.*$/$& - deb old format support/' 'pkg-deb-old-format/DEBIAN/control'
+
+cat >pkg-deb-old-format/file-templ <<'_ATEOF'
+test
+_ATEOF
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:28:
+# Initialize the template package
+mv pkg-deb-old-format pkg-old-templ
+cp \$top_srcdir/ChangeLog.old pkg-old-templ/
+chmod 0644 pkg-old-templ/ChangeLog.old
+chmod -R u+w pkg-old-templ
+find pkg-old-templ | xargs touch -t 197001010100.00
+dpkg-deb --deb-format=0.939000 --root-owner-group -b pkg-old-templ >/dev/null
+
+dpkg-deb --ctrl-tarfile pkg-old-templ.deb >ctrl.tar
+dpkg-deb --fsys-tarfile pkg-old-templ.deb >fsys.tar
+gzip -n ctrl.tar
+gzip -n fsys.tar
+
+# Create deb-old 0.939
+echo '0.939000' >pkg-old.deb
+
+  \$PERL -E 'say -s shift' \"ctrl.tar.gz\"  >>pkg-old.deb
+cat ctrl.tar.gz >>pkg-old.deb
+cat fsys.tar.gz >>pkg-old.deb
+
+# Create deb-old-old-old 0.931
+mkdir -p pkg-old-0931-templ/.DEBIAN
+cp pkg-old-templ/DEBIAN/* pkg-old-0931-templ/.DEBIAN/
+find pkg-old-0931-templ | xargs touch -t 197001010100.00
+\$TAR czf ctrl-0931.tar.gz --format=gnu --mtime @0 --clamp-mtime --owner root:0 --group root:0 -C pkg-old-0931-templ .DEBIAN
+
+echo '0.931000' >pkg-old-0931.deb
+
+  \$PERL -E 'say -s shift' \"ctrl-0931.tar.gz\"  >>pkg-old-0931.deb
+cat ctrl-0931.tar.gz >>pkg-old-0931.deb
+cat fsys.tar.gz >>pkg-old-0931.deb
+
+# Create deb-old-old template
+mkdir -p pkg-old-0932-templ/DEBIAN
+cp pkg-old-templ/DEBIAN/* pkg-old-0932-templ/DEBIAN/
+find pkg-old-0932-templ | xargs touch -t 197001010100.00
+\$TAR czf ctrl-0932.tar.gz --format=gnu --mtime @0 --clamp-mtime --owner root:0 --group root:0 -C pkg-old-0932-templ DEBIAN
+
+# Create deb-old-old 0.932
+echo '0.932000' >pkg-old-0932.deb
+
+  \$PERL -E 'say -s shift' \"ctrl-0932.tar.gz\"  >>pkg-old-0932.deb
+cat ctrl-0932.tar.gz >>pkg-old-0932.deb
+cat fsys.tar.gz >>pkg-old-0932.deb
+
+# Create deb-old-old 0.933
+echo '0.933000' >pkg-old-0933.deb
+
+  \$PERL -E 'say -s shift' \"ctrl-0932.tar.gz\"  >>pkg-old-0933.deb
+cat ctrl-0932.tar.gz >>pkg-old-0933.deb
+cat fsys.tar.gz >>pkg-old-0933.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:28"
+( $at_check_trace;
+# Initialize the template package
+mv pkg-deb-old-format pkg-old-templ
+cp $top_srcdir/ChangeLog.old pkg-old-templ/
+chmod 0644 pkg-old-templ/ChangeLog.old
+chmod -R u+w pkg-old-templ
+find pkg-old-templ | xargs touch -t 197001010100.00
+dpkg-deb --deb-format=0.939000 --root-owner-group -b pkg-old-templ >/dev/null
+
+dpkg-deb --ctrl-tarfile pkg-old-templ.deb >ctrl.tar
+dpkg-deb --fsys-tarfile pkg-old-templ.deb >fsys.tar
+gzip -n ctrl.tar
+gzip -n fsys.tar
+
+# Create deb-old 0.939
+echo '0.939000' >pkg-old.deb
+
+  $PERL -E 'say -s shift' "ctrl.tar.gz"  >>pkg-old.deb
+cat ctrl.tar.gz >>pkg-old.deb
+cat fsys.tar.gz >>pkg-old.deb
+
+# Create deb-old-old-old 0.931
+mkdir -p pkg-old-0931-templ/.DEBIAN
+cp pkg-old-templ/DEBIAN/* pkg-old-0931-templ/.DEBIAN/
+find pkg-old-0931-templ | xargs touch -t 197001010100.00
+$TAR czf ctrl-0931.tar.gz --format=gnu --mtime @0 --clamp-mtime --owner root:0 --group root:0 -C pkg-old-0931-templ .DEBIAN
+
+echo '0.931000' >pkg-old-0931.deb
+
+  $PERL -E 'say -s shift' "ctrl-0931.tar.gz"  >>pkg-old-0931.deb
+cat ctrl-0931.tar.gz >>pkg-old-0931.deb
+cat fsys.tar.gz >>pkg-old-0931.deb
+
+# Create deb-old-old template
+mkdir -p pkg-old-0932-templ/DEBIAN
+cp pkg-old-templ/DEBIAN/* pkg-old-0932-templ/DEBIAN/
+find pkg-old-0932-templ | xargs touch -t 197001010100.00
+$TAR czf ctrl-0932.tar.gz --format=gnu --mtime @0 --clamp-mtime --owner root:0 --group root:0 -C pkg-old-0932-templ DEBIAN
+
+# Create deb-old-old 0.932
+echo '0.932000' >pkg-old-0932.deb
+
+  $PERL -E 'say -s shift' "ctrl-0932.tar.gz"  >>pkg-old-0932.deb
+cat ctrl-0932.tar.gz >>pkg-old-0932.deb
+cat fsys.tar.gz >>pkg-old-0932.deb
+
+# Create deb-old-old 0.933
+echo '0.933000' >pkg-old-0933.deb
+
+  $PERL -E 'say -s shift' "ctrl-0932.tar.gz"  >>pkg-old-0933.deb
+cat ctrl-0932.tar.gz >>pkg-old-0933.deb
+cat fsys.tar.gz >>pkg-old-0933.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:28"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+DEB_OLD_CTRL_SIZE=$(
+  $PERL -E 'say -s shift' "ctrl.tar.gz" )
+DEB_OLD_FSYS_SIZE=$(
+  $PERL -E 'say -s shift' "fsys.tar.gz" )
+DEB_OLD_SIZE=$(
+  $PERL -E 'say -s shift' "pkg-old.deb" )
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:82:
+# Check old package metadata
+dpkg-deb -I pkg-old.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:82"
+( $at_check_trace;
+# Check old package metadata
+dpkg-deb -I pkg-old.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" " old Debian package, version 0.939000.
+ size $DEB_OLD_SIZE bytes: control archive=$DEB_OLD_CTRL_SIZE, main archive=$DEB_OLD_FSYS_SIZE.
+     201 bytes,     7 lines      control
+ Package: pkg-deb-old-format
+ Version: 0.0-1
+ Section: test
+ Priority: extra
+ Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+ Architecture: all
+ Description: test package - deb old format support
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:82"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+DEB_OLD_0931_SIZE=$(
+  $PERL -E 'say -s shift' "pkg-old-0931.deb" )
+DEB_OLD_0931_CTRL_SIZE=$(
+  $PERL -E 'say -s shift' "ctrl-0931.tar.gz" )
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:100:
+# Check old package metadata
+dpkg-deb -I pkg-old-0931.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:100"
+( $at_check_trace;
+# Check old package metadata
+dpkg-deb -I pkg-old-0931.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" " old Debian package, version 0.931000.
+ size $DEB_OLD_0931_SIZE bytes: control archive=$DEB_OLD_0931_CTRL_SIZE, main archive=$DEB_OLD_FSYS_SIZE.
+     201 bytes,     7 lines      control
+ Package: pkg-deb-old-format
+ Version: 0.0-1
+ Section: test
+ Priority: extra
+ Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+ Architecture: all
+ Description: test package - deb old format support
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:100"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+DEB_OLD_0932_SIZE=$(
+  $PERL -E 'say -s shift' "pkg-old-0932.deb" )
+DEB_OLD_0932_CTRL_SIZE=$(
+  $PERL -E 'say -s shift' "ctrl-0932.tar.gz" )
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:118:
+# Check old package metadata
+dpkg-deb -I pkg-old-0932.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:118"
+( $at_check_trace;
+# Check old package metadata
+dpkg-deb -I pkg-old-0932.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" " old Debian package, version 0.932000.
+ size $DEB_OLD_0932_SIZE bytes: control archive=$DEB_OLD_0932_CTRL_SIZE, main archive=$DEB_OLD_FSYS_SIZE.
+     201 bytes,     7 lines      control
+ Package: pkg-deb-old-format
+ Version: 0.0-1
+ Section: test
+ Priority: extra
+ Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+ Architecture: all
+ Description: test package - deb old format support
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:118"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+DEB_OLD_0933_SIZE=$(
+  $PERL -E 'say -s shift' "pkg-old-0933.deb" )
+DEB_OLD_0933_CTRL_SIZE=$DEB_OLD_0932_CTRL_SIZE
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:136:
+# Check old package metadata
+dpkg-deb -I pkg-old-0933.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:136"
+( $at_check_trace;
+# Check old package metadata
+dpkg-deb -I pkg-old-0933.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" " old Debian package, version 0.933000.
+ size $DEB_OLD_0933_SIZE bytes: control archive=$DEB_OLD_0933_CTRL_SIZE, main archive=$DEB_OLD_FSYS_SIZE.
+     201 bytes,     7 lines      control
+ Package: pkg-deb-old-format
+ Version: 0.0-1
+ Section: test
+ Priority: extra
+ Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+ Architecture: all
+ Description: test package - deb old format support
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:136"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:151:
+# Check old package contents
+dpkg-deb -c pkg-old.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:151"
+( $at_check_trace;
+# Check old package contents
+dpkg-deb -c pkg-old.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "drwxr-xr-x root/root         0 1970-01-01 00:00 ./
+-rw-r--r-- root/root    641345 1970-01-01 00:00 ./ChangeLog.old
+-rw-r--r-- root/root         5 1970-01-01 00:00 ./file-templ
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:151"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:159:
+# Check old package contents
+dpkg-deb -c pkg-old-0931.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:159"
+( $at_check_trace;
+# Check old package contents
+dpkg-deb -c pkg-old-0931.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "drwxr-xr-x root/root         0 1970-01-01 00:00 ./
+-rw-r--r-- root/root    641345 1970-01-01 00:00 ./ChangeLog.old
+-rw-r--r-- root/root         5 1970-01-01 00:00 ./file-templ
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:159"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:167:
+# Check old package contents
+dpkg-deb -c pkg-old-0932.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:167"
+( $at_check_trace;
+# Check old package contents
+dpkg-deb -c pkg-old-0932.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "drwxr-xr-x root/root         0 1970-01-01 00:00 ./
+-rw-r--r-- root/root    641345 1970-01-01 00:00 ./ChangeLog.old
+-rw-r--r-- root/root         5 1970-01-01 00:00 ./file-templ
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:167"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:175:
+# Check old package contents
+dpkg-deb -c pkg-old-0933.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:175"
+( $at_check_trace;
+# Check old package contents
+dpkg-deb -c pkg-old-0933.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "drwxr-xr-x root/root         0 1970-01-01 00:00 ./
+-rw-r--r-- root/root    641345 1970-01-01 00:00 ./ChangeLog.old
+-rw-r--r-- root/root         5 1970-01-01 00:00 ./file-templ
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:175"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_2
+#AT_START_3
+at_fn_group_banner 3 'deb-format.at:208' \
+  "dpkg-deb .deb format 2.x (core)" "                " 1
+at_xfail=no
+(
+  printf "%s\n" "3. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+printf "%s\n" "deb-format.at:211" >"$at_check_line_file"
+(! command -v gzip >/dev/null) \
+  && at_fn_check_skip 77 "$at_srcdir/deb-format.at:211"
+
+: >pkg-deb-bogus-empty.deb
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:214:
+# Check truncated deb w/ 0 size
+dpkg-deb --info pkg-deb-bogus-empty.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:214"
+( $at_check_trace;
+# Check truncated deb w/ 0 size
+dpkg-deb --info pkg-deb-bogus-empty.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "dpkg-deb: error: unexpected end of file in archive magic version number in pkg-deb-bogus-empty.deb
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/deb-format.at:214"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+: >unknown
+
+
+
+
+  mkdir -p 'pkg-deb-format/DEBIAN'
+
+  cat >'pkg-deb-format/DEBIAN/control' <<CTRL_TEMPL
+Package: pkg-deb-format
+Version: 0.0-1
+Section: test
+Priority: extra
+Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+Architecture: all
+Description: test package
+CTRL_TEMPL
+
+
+
+  $PERL -p -i -E 's/^Description:.*$/$& - deb format support/' 'pkg-deb-format/DEBIAN/control'
+
+  cat >pkg-deb-format/file-templ <<'_ATEOF'
+test
+_ATEOF
+
+  { set +x
+printf "%s\n" "$at_srcdir/deb-format.at:222:
+  # Initialize the template package
+  mv pkg-deb-format pkg-templ
+  cp \$top_srcdir/ChangeLog.old pkg-templ/
+  chmod 0644 pkg-templ/ChangeLog.old
+  chmod -R u+w pkg-templ
+  find pkg-templ | xargs touch -t 197001010100.00
+  dpkg-deb --uniform-compression --root-owner-group -Znone -b pkg-templ >/dev/null
+
+  # Extract the base members
+  ar x pkg-templ.deb
+  gzip -cn control.tar >control.tar.gz
+  gzip -cn data.tar >data.tar.gz
+  "
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:222"
+( $at_check_trace;
+  # Initialize the template package
+  mv pkg-deb-format pkg-templ
+  cp $top_srcdir/ChangeLog.old pkg-templ/
+  chmod 0644 pkg-templ/ChangeLog.old
+  chmod -R u+w pkg-templ
+  find pkg-templ | xargs touch -t 197001010100.00
+  dpkg-deb --uniform-compression --root-owner-group -Znone -b pkg-templ >/dev/null
+
+  # Extract the base members
+  ar x pkg-templ.deb
+  gzip -cn control.tar >control.tar.gz
+  gzip -cn data.tar >data.tar.gz
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:222"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:224:
+# Test debian-binary with 2.x versions
+echo 2.999 >debian-binary
+ar qSc pkg-version-2x.deb debian-binary control.tar data.tar
+ar t pkg-version-2x.deb
+ar x pkg-templ.deb debian-binary
+dpkg-deb -I pkg-version-2x.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:224"
+( $at_check_trace;
+# Test debian-binary with 2.x versions
+echo 2.999 >debian-binary
+ar qSc pkg-version-2x.deb debian-binary control.tar data.tar
+ar t pkg-version-2x.deb
+ar x pkg-templ.deb debian-binary
+dpkg-deb -I pkg-version-2x.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "debian-binary
+control.tar
+data.tar
+ new Debian package, version 2.999.
+ size 655554 bytes: control archive=10240 bytes.
+     193 bytes,     7 lines      control
+ Package: pkg-deb-format
+ Version: 0.0-1
+ Section: test
+ Priority: extra
+ Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+ Architecture: all
+ Description: test package - deb format support
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:224"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:246:
+# Test debian-binary with extra lines
+echo \"extra line\" >>debian-binary
+ar qSc pkg-magic-extra.deb debian-binary control.tar data.tar
+ar t pkg-magic-extra.deb
+ar x pkg-templ.deb debian-binary
+dpkg-deb -I pkg-magic-extra.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:246"
+( $at_check_trace;
+# Test debian-binary with extra lines
+echo "extra line" >>debian-binary
+ar qSc pkg-magic-extra.deb debian-binary control.tar data.tar
+ar t pkg-magic-extra.deb
+ar x pkg-templ.deb debian-binary
+dpkg-deb -I pkg-magic-extra.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "debian-binary
+control.tar
+data.tar
+ new Debian package, version 2.0.
+ size 655564 bytes: control archive=10240 bytes.
+     193 bytes,     7 lines      control
+ Package: pkg-deb-format
+ Version: 0.0-1
+ Section: test
+ Priority: extra
+ Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+ Architecture: all
+ Description: test package - deb format support
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:246"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:268:
+# Test missing debian-binary member
+cp pkg-templ.deb pkg-missing-magic.deb
+ar d pkg-missing-magic.deb debian-binary
+ar t pkg-missing-magic.deb
+dpkg-deb -I pkg-missing-magic.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:268"
+( $at_check_trace;
+# Test missing debian-binary member
+cp pkg-templ.deb pkg-missing-magic.deb
+ar d pkg-missing-magic.deb debian-binary
+ar t pkg-missing-magic.deb
+dpkg-deb -I pkg-missing-magic.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "dpkg-deb: error: file 'pkg-missing-magic.deb' is not a Debian binary archive (try dpkg-split?)
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "control.tar
+data.tar
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/deb-format.at:268"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:279:
+# Test missing control member
+cp pkg-templ.deb pkg-missing-control.deb
+ar d pkg-missing-control.deb control.tar
+ar t pkg-missing-control.deb
+dpkg-deb -I pkg-missing-control.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:279"
+( $at_check_trace;
+# Test missing control member
+cp pkg-templ.deb pkg-missing-control.deb
+ar d pkg-missing-control.deb control.tar
+ar t pkg-missing-control.deb
+dpkg-deb -I pkg-missing-control.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "dpkg-deb: error: archive 'pkg-missing-control.deb' has premature member 'data.tar' before 'control.tar', giving up
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "debian-binary
+data.tar
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/deb-format.at:279"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:290:
+# Test missing data member
+cp pkg-templ.deb pkg-missing-data.deb
+ar d pkg-missing-data.deb data.tar
+ar t pkg-missing-data.deb
+dpkg-deb -c pkg-missing-data.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:290"
+( $at_check_trace;
+# Test missing data member
+cp pkg-templ.deb pkg-missing-data.deb
+ar d pkg-missing-data.deb data.tar
+ar t pkg-missing-data.deb
+dpkg-deb -c pkg-missing-data.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "dpkg-deb: error: unexpected end of file in archive member header in pkg-missing-data.deb
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "debian-binary
+control.tar
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/deb-format.at:290"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:301:
+# Test duplicate debian-binary member
+ar qSc pkg-duplicate-magic.deb debian-binary debian-binary control.tar data.tar
+ar t pkg-duplicate-magic.deb
+dpkg-deb -I pkg-duplicate-magic.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:301"
+( $at_check_trace;
+# Test duplicate debian-binary member
+ar qSc pkg-duplicate-magic.deb debian-binary debian-binary control.tar data.tar
+ar t pkg-duplicate-magic.deb
+dpkg-deb -I pkg-duplicate-magic.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "dpkg-deb: error: archive 'pkg-duplicate-magic.deb' has premature member 'debian-binary' before 'control.tar', giving up
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "debian-binary
+debian-binary
+control.tar
+data.tar
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/deb-format.at:301"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:313:
+# Test duplicate control member
+ar qSc pkg-duplicate-control.deb debian-binary control.tar control.tar data.tar
+ar t pkg-duplicate-control.deb
+dpkg-deb -c pkg-duplicate-control.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:313"
+( $at_check_trace;
+# Test duplicate control member
+ar qSc pkg-duplicate-control.deb debian-binary control.tar control.tar data.tar
+ar t pkg-duplicate-control.deb
+dpkg-deb -c pkg-duplicate-control.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "dpkg-deb: error: archive 'pkg-duplicate-control.deb' contains two control members, giving up
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "debian-binary
+control.tar
+control.tar
+data.tar
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/deb-format.at:313"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:325:
+# Test mixed member (index 1)
+ar qSc pkg-mixed-1-member.deb debian-binary unknown control.tar data.tar
+ar t pkg-mixed-1-member.deb
+dpkg-deb -I pkg-mixed-1-member.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:325"
+( $at_check_trace;
+# Test mixed member (index 1)
+ar qSc pkg-mixed-1-member.deb debian-binary unknown control.tar data.tar
+ar t pkg-mixed-1-member.deb
+dpkg-deb -I pkg-mixed-1-member.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "dpkg-deb: error: archive 'pkg-mixed-1-member.deb' has premature member 'unknown' before 'control.tar', giving up
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "debian-binary
+unknown
+control.tar
+data.tar
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/deb-format.at:325"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:337:
+# Test mixed member (index 2)
+ar qSc pkg-mixed-2-member.deb debian-binary control.tar unknown data.tar
+ar t pkg-mixed-2-member.deb
+dpkg-deb -c pkg-mixed-2-member.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:337"
+( $at_check_trace;
+# Test mixed member (index 2)
+ar qSc pkg-mixed-2-member.deb debian-binary control.tar unknown data.tar
+ar t pkg-mixed-2-member.deb
+dpkg-deb -c pkg-mixed-2-member.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "dpkg-deb: error: archive 'pkg-mixed-2-member.deb' has premature member 'unknown' before 'data.tar', giving up
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "debian-binary
+control.tar
+unknown
+data.tar
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/deb-format.at:337"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:349:
+# Test swapped control and data members
+cp pkg-templ.deb pkg-swap-members.deb
+ar ma data.tar pkg-swap-members.deb control.tar
+ar t pkg-swap-members.deb
+dpkg-deb -I pkg-swap-members.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:349"
+( $at_check_trace;
+# Test swapped control and data members
+cp pkg-templ.deb pkg-swap-members.deb
+ar ma data.tar pkg-swap-members.deb control.tar
+ar t pkg-swap-members.deb
+dpkg-deb -I pkg-swap-members.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "dpkg-deb: error: archive 'pkg-swap-members.deb' has premature member 'data.tar' before 'control.tar', giving up
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "debian-binary
+data.tar
+control.tar
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/deb-format.at:349"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:361:
+# Test extra member
+cp pkg-templ.deb pkg-extra-member.deb
+ar qS pkg-extra-member.deb unknown
+ar t pkg-extra-member.deb
+dpkg-deb -I pkg-extra-member.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:361"
+( $at_check_trace;
+# Test extra member
+cp pkg-templ.deb pkg-extra-member.deb
+ar qS pkg-extra-member.deb unknown
+ar t pkg-extra-member.deb
+dpkg-deb -I pkg-extra-member.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "debian-binary
+control.tar
+data.tar
+unknown
+ new Debian package, version 2.0.
+ size 655612 bytes: control archive=10240 bytes.
+     193 bytes,     7 lines      control
+ Package: pkg-deb-format
+ Version: 0.0-1
+ Section: test
+ Priority: extra
+ Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+ Architecture: all
+ Description: test package - deb format support
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:361"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+: >_ignore
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:384:
+# Test _ member
+ar qSc pkg-under-member.deb debian-binary _ignore control.tar data.tar
+ar t pkg-under-member.deb
+dpkg-deb -I pkg-under-member.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:384"
+( $at_check_trace;
+# Test _ member
+ar qSc pkg-under-member.deb debian-binary _ignore control.tar data.tar
+ar t pkg-under-member.deb
+dpkg-deb -I pkg-under-member.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "debian-binary
+_ignore
+control.tar
+data.tar
+ new Debian package, version 2.0.
+ size 655612 bytes: control archive=10240 bytes.
+     193 bytes,     7 lines      control
+ Package: pkg-deb-format
+ Version: 0.0-1
+ Section: test
+ Priority: extra
+ Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+ Architecture: all
+ Description: test package - deb format support
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:384"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:405:
+# Test data.tar.bad member
+\$PERL -E 'print \"\\0\" x 4096' >data.tar.bad
+ar qSc pkg-data-bad.deb debian-binary control.tar.gz data.tar.bad
+ar t pkg-data-bad.deb
+dpkg-deb -c pkg-data-bad.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:405"
+( $at_check_trace;
+# Test data.tar.bad member
+$PERL -E 'print "\0" x 4096' >data.tar.bad
+ar qSc pkg-data-bad.deb debian-binary control.tar.gz data.tar.bad
+ar t pkg-data-bad.deb
+dpkg-deb -c pkg-data-bad.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "dpkg-deb: error: archive 'pkg-data-bad.deb' uses unknown compression for member 'data.tar.bad', giving up
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "debian-binary
+control.tar.gz
+data.tar.bad
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/deb-format.at:405"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:417:
+# Test control.tar member
+ar qSc pkg-control-none.deb debian-binary control.tar data.tar
+ar t pkg-control-none.deb
+dpkg-deb -I pkg-control-none.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:417"
+( $at_check_trace;
+# Test control.tar member
+ar qSc pkg-control-none.deb debian-binary control.tar data.tar
+ar t pkg-control-none.deb
+dpkg-deb -I pkg-control-none.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "debian-binary
+control.tar
+data.tar
+ new Debian package, version 2.0.
+ size 655552 bytes: control archive=10240 bytes.
+     193 bytes,     7 lines      control
+ Package: pkg-deb-format
+ Version: 0.0-1
+ Section: test
+ Priority: extra
+ Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+ Architecture: all
+ Description: test package - deb format support
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:417"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:437:
+# Test data.tar member
+ar qSc pkg-data-none.deb debian-binary control.tar.gz data.tar
+ar t pkg-data-none.deb
+dpkg-deb -c pkg-data-none.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:437"
+( $at_check_trace;
+# Test data.tar member
+ar qSc pkg-data-none.deb debian-binary control.tar.gz data.tar
+ar t pkg-data-none.deb
+dpkg-deb -c pkg-data-none.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "debian-binary
+control.tar.gz
+data.tar
+drwxr-xr-x root/root         0 1970-01-01 00:00 ./
+-rw-r--r-- root/root    641345 1970-01-01 00:00 ./ChangeLog.old
+-rw-r--r-- root/root         5 1970-01-01 00:00 ./file-templ
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:437"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:450:
+# Test data.tar.gz member
+ar qSc pkg-data-gz.deb debian-binary control.tar.gz data.tar.gz
+ar t pkg-data-gz.deb
+dpkg-deb -c pkg-data-gz.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:450"
+( $at_check_trace;
+# Test data.tar.gz member
+ar qSc pkg-data-gz.deb debian-binary control.tar.gz data.tar.gz
+ar t pkg-data-gz.deb
+dpkg-deb -c pkg-data-gz.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "debian-binary
+control.tar.gz
+data.tar.gz
+drwxr-xr-x root/root         0 1970-01-01 00:00 ./
+-rw-r--r-- root/root    641345 1970-01-01 00:00 ./ChangeLog.old
+-rw-r--r-- root/root         5 1970-01-01 00:00 ./file-templ
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:450"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+# Create .deb with non-uniform data.tar/control.tar member compression
+ar qSc pkg-mixed-comp.deb debian-binary control.tar data.tar.gz
+DEB_MIXED_COMP_SIZE=$(
+  $PERL -E 'say -s shift' "pkg-mixed-comp.deb" )
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:467:
+# Test non-uniform data.tar/control.tar member compression
+ar t pkg-mixed-comp.deb
+dpkg-deb -I pkg-mixed-comp.deb
+dpkg-deb -c pkg-mixed-comp.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:467"
+( $at_check_trace;
+# Test non-uniform data.tar/control.tar member compression
+ar t pkg-mixed-comp.deb
+dpkg-deb -I pkg-mixed-comp.deb
+dpkg-deb -c pkg-mixed-comp.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "debian-binary
+control.tar
+data.tar.gz
+ new Debian package, version 2.0.
+ size $DEB_MIXED_COMP_SIZE bytes: control archive=10240 bytes.
+     193 bytes,     7 lines      control
+ Package: pkg-deb-format
+ Version: 0.0-1
+ Section: test
+ Priority: extra
+ Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+ Architecture: all
+ Description: test package - deb format support
+drwxr-xr-x root/root         0 1970-01-01 00:00 ./
+-rw-r--r-- root/root    641345 1970-01-01 00:00 ./ChangeLog.old
+-rw-r--r-- root/root         5 1970-01-01 00:00 ./file-templ
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:467"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:490:
+# Test building and extracting none compressed archive
+dpkg-deb --uniform-compression --root-owner-group -Znone -b pkg-templ pkg-comp-none.deb >/dev/null
+dpkg-deb --ctrl-tarfile pkg-comp-none.deb >ctrl-none.tar
+dpkg-deb --fsys-tarfile pkg-comp-none.deb >fsys-none.tar
+cmp ctrl-none.tar control.tar
+cmp fsys-none.tar data.tar
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:490"
+( $at_check_trace;
+# Test building and extracting none compressed archive
+dpkg-deb --uniform-compression --root-owner-group -Znone -b pkg-templ pkg-comp-none.deb >/dev/null
+dpkg-deb --ctrl-tarfile pkg-comp-none.deb >ctrl-none.tar
+dpkg-deb --fsys-tarfile pkg-comp-none.deb >fsys-none.tar
+cmp ctrl-none.tar control.tar
+cmp fsys-none.tar data.tar
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:490"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:499:
+# Test building and extracting gzip compressed archive
+dpkg-deb --uniform-compression --root-owner-group -Zgzip -b pkg-templ pkg-comp-gzip.deb >/dev/null
+dpkg-deb --ctrl-tarfile pkg-comp-gzip.deb >ctrl-gzip.tar
+dpkg-deb --fsys-tarfile pkg-comp-gzip.deb >fsys-gzip.tar
+cmp ctrl-gzip.tar control.tar
+cmp fsys-gzip.tar data.tar
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:499"
+( $at_check_trace;
+# Test building and extracting gzip compressed archive
+dpkg-deb --uniform-compression --root-owner-group -Zgzip -b pkg-templ pkg-comp-gzip.deb >/dev/null
+dpkg-deb --ctrl-tarfile pkg-comp-gzip.deb >ctrl-gzip.tar
+dpkg-deb --fsys-tarfile pkg-comp-gzip.deb >fsys-gzip.tar
+cmp ctrl-gzip.tar control.tar
+cmp fsys-gzip.tar data.tar
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:499"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_3
+#AT_START_4
+at_fn_group_banner 4 'deb-format.at:511' \
+  "dpkg-deb .deb format 2.x (xz)" "                  " 1
+at_xfail=no
+(
+  printf "%s\n" "4. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+printf "%s\n" "deb-format.at:514" >"$at_check_line_file"
+(! command -v gzip >/dev/null) \
+  && at_fn_check_skip 77 "$at_srcdir/deb-format.at:514"
+printf "%s\n" "deb-format.at:515" >"$at_check_line_file"
+(! command -v xz >/dev/null) \
+  && at_fn_check_skip 77 "$at_srcdir/deb-format.at:515"
+
+
+
+
+  mkdir -p 'pkg-deb-format/DEBIAN'
+
+  cat >'pkg-deb-format/DEBIAN/control' <<CTRL_TEMPL
+Package: pkg-deb-format
+Version: 0.0-1
+Section: test
+Priority: extra
+Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+Architecture: all
+Description: test package
+CTRL_TEMPL
+
+
+
+  $PERL -p -i -E 's/^Description:.*$/$& - deb format support/' 'pkg-deb-format/DEBIAN/control'
+
+  cat >pkg-deb-format/file-templ <<'_ATEOF'
+test
+_ATEOF
+
+  { set +x
+printf "%s\n" "$at_srcdir/deb-format.at:517:
+  # Initialize the template package
+  mv pkg-deb-format pkg-templ
+  cp \$top_srcdir/ChangeLog.old pkg-templ/
+  chmod 0644 pkg-templ/ChangeLog.old
+  chmod -R u+w pkg-templ
+  find pkg-templ | xargs touch -t 197001010100.00
+  dpkg-deb --uniform-compression --root-owner-group -Znone -b pkg-templ >/dev/null
+
+  # Extract the base members
+  ar x pkg-templ.deb
+  gzip -cn control.tar >control.tar.gz
+  gzip -cn data.tar >data.tar.gz
+  "
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:517"
+( $at_check_trace;
+  # Initialize the template package
+  mv pkg-deb-format pkg-templ
+  cp $top_srcdir/ChangeLog.old pkg-templ/
+  chmod 0644 pkg-templ/ChangeLog.old
+  chmod -R u+w pkg-templ
+  find pkg-templ | xargs touch -t 197001010100.00
+  dpkg-deb --uniform-compression --root-owner-group -Znone -b pkg-templ >/dev/null
+
+  # Extract the base members
+  ar x pkg-templ.deb
+  gzip -cn control.tar >control.tar.gz
+  gzip -cn data.tar >data.tar.gz
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:517"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:518:
+# Extract the base members
+xz -c control.tar >control.tar.xz
+xz -c data.tar >data.tar.xz
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:518"
+( $at_check_trace;
+# Extract the base members
+xz -c control.tar >control.tar.xz
+xz -c data.tar >data.tar.xz
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:518"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:524:
+# Test control.tar.xz member
+ar qSc pkg-control-xz.deb debian-binary control.tar.xz data.tar.xz
+ar t pkg-control-xz.deb
+dpkg-deb -c pkg-control-xz.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:524"
+( $at_check_trace;
+# Test control.tar.xz member
+ar qSc pkg-control-xz.deb debian-binary control.tar.xz data.tar.xz
+ar t pkg-control-xz.deb
+dpkg-deb -c pkg-control-xz.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "debian-binary
+control.tar.xz
+data.tar.xz
+drwxr-xr-x root/root         0 1970-01-01 00:00 ./
+-rw-r--r-- root/root    641345 1970-01-01 00:00 ./ChangeLog.old
+-rw-r--r-- root/root         5 1970-01-01 00:00 ./file-templ
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:524"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:537:
+# Test data.tar.xz member
+ar qSc pkg-data-xz.deb debian-binary control.tar.gz data.tar.xz
+ar t pkg-data-xz.deb
+dpkg-deb -c pkg-data-xz.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:537"
+( $at_check_trace;
+# Test data.tar.xz member
+ar qSc pkg-data-xz.deb debian-binary control.tar.gz data.tar.xz
+ar t pkg-data-xz.deb
+dpkg-deb -c pkg-data-xz.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "debian-binary
+control.tar.gz
+data.tar.xz
+drwxr-xr-x root/root         0 1970-01-01 00:00 ./
+-rw-r--r-- root/root    641345 1970-01-01 00:00 ./ChangeLog.old
+-rw-r--r-- root/root         5 1970-01-01 00:00 ./file-templ
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:537"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:550:
+# Test building and extracting xz compressed archive
+dpkg-deb --uniform-compression --root-owner-group -Zxz -b pkg-templ pkg-comp-xz.deb >/dev/null
+dpkg-deb --ctrl-tarfile pkg-comp-xz.deb >ctrl-xz.tar
+dpkg-deb --fsys-tarfile pkg-comp-xz.deb >fsys-xz.tar
+cmp ctrl-xz.tar control.tar
+cmp fsys-xz.tar data.tar
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:550"
+( $at_check_trace;
+# Test building and extracting xz compressed archive
+dpkg-deb --uniform-compression --root-owner-group -Zxz -b pkg-templ pkg-comp-xz.deb >/dev/null
+dpkg-deb --ctrl-tarfile pkg-comp-xz.deb >ctrl-xz.tar
+dpkg-deb --fsys-tarfile pkg-comp-xz.deb >fsys-xz.tar
+cmp ctrl-xz.tar control.tar
+cmp fsys-xz.tar data.tar
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:550"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_4
+#AT_START_5
+at_fn_group_banner 5 'deb-format.at:562' \
+  "dpkg-deb .deb format 2.x (zstd)" "                " 1
+at_xfail=no
+(
+  printf "%s\n" "5. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+printf "%s\n" "deb-format.at:565" >"$at_check_line_file"
+(! command -v gzip >/dev/null) \
+  && at_fn_check_skip 77 "$at_srcdir/deb-format.at:565"
+printf "%s\n" "deb-format.at:566" >"$at_check_line_file"
+(! command -v zstd >/dev/null) \
+  && at_fn_check_skip 77 "$at_srcdir/deb-format.at:566"
+
+
+
+
+  mkdir -p 'pkg-deb-format/DEBIAN'
+
+  cat >'pkg-deb-format/DEBIAN/control' <<CTRL_TEMPL
+Package: pkg-deb-format
+Version: 0.0-1
+Section: test
+Priority: extra
+Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+Architecture: all
+Description: test package
+CTRL_TEMPL
+
+
+
+  $PERL -p -i -E 's/^Description:.*$/$& - deb format support/' 'pkg-deb-format/DEBIAN/control'
+
+  cat >pkg-deb-format/file-templ <<'_ATEOF'
+test
+_ATEOF
+
+  { set +x
+printf "%s\n" "$at_srcdir/deb-format.at:568:
+  # Initialize the template package
+  mv pkg-deb-format pkg-templ
+  cp \$top_srcdir/ChangeLog.old pkg-templ/
+  chmod 0644 pkg-templ/ChangeLog.old
+  chmod -R u+w pkg-templ
+  find pkg-templ | xargs touch -t 197001010100.00
+  dpkg-deb --uniform-compression --root-owner-group -Znone -b pkg-templ >/dev/null
+
+  # Extract the base members
+  ar x pkg-templ.deb
+  gzip -cn control.tar >control.tar.gz
+  gzip -cn data.tar >data.tar.gz
+  "
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:568"
+( $at_check_trace;
+  # Initialize the template package
+  mv pkg-deb-format pkg-templ
+  cp $top_srcdir/ChangeLog.old pkg-templ/
+  chmod 0644 pkg-templ/ChangeLog.old
+  chmod -R u+w pkg-templ
+  find pkg-templ | xargs touch -t 197001010100.00
+  dpkg-deb --uniform-compression --root-owner-group -Znone -b pkg-templ >/dev/null
+
+  # Extract the base members
+  ar x pkg-templ.deb
+  gzip -cn control.tar >control.tar.gz
+  gzip -cn data.tar >data.tar.gz
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:568"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:569:
+# Extract the base members
+zstd -c control.tar >control.tar.zst
+zstd -c data.tar >data.tar.zst
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:569"
+( $at_check_trace;
+# Extract the base members
+zstd -c control.tar >control.tar.zst
+zstd -c data.tar >data.tar.zst
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:569"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:575:
+# Test control.tar.zst member
+ar qSc pkg-control-zst.deb debian-binary control.tar.zst data.tar.zst
+ar t pkg-control-zst.deb
+dpkg-deb -c pkg-control-zst.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:575"
+( $at_check_trace;
+# Test control.tar.zst member
+ar qSc pkg-control-zst.deb debian-binary control.tar.zst data.tar.zst
+ar t pkg-control-zst.deb
+dpkg-deb -c pkg-control-zst.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "debian-binary
+control.tar.zst
+data.tar.zst
+drwxr-xr-x root/root         0 1970-01-01 00:00 ./
+-rw-r--r-- root/root    641345 1970-01-01 00:00 ./ChangeLog.old
+-rw-r--r-- root/root         5 1970-01-01 00:00 ./file-templ
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:575"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:588:
+# Test data.tar.zst member
+ar qSc pkg-data-zst.deb debian-binary control.tar.gz data.tar.zst
+ar t pkg-data-zst.deb
+dpkg-deb -c pkg-data-zst.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:588"
+( $at_check_trace;
+# Test data.tar.zst member
+ar qSc pkg-data-zst.deb debian-binary control.tar.gz data.tar.zst
+ar t pkg-data-zst.deb
+dpkg-deb -c pkg-data-zst.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "debian-binary
+control.tar.gz
+data.tar.zst
+drwxr-xr-x root/root         0 1970-01-01 00:00 ./
+-rw-r--r-- root/root    641345 1970-01-01 00:00 ./ChangeLog.old
+-rw-r--r-- root/root         5 1970-01-01 00:00 ./file-templ
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:588"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:601:
+# Test building and extracting zstd compressed archive
+dpkg-deb --uniform-compression --root-owner-group -Zzstd -b pkg-templ pkg-comp-zstd.deb >/dev/null
+dpkg-deb --ctrl-tarfile pkg-comp-zstd.deb >ctrl-zstd.tar
+dpkg-deb --fsys-tarfile pkg-comp-zstd.deb >fsys-zstd.tar
+cmp ctrl-zstd.tar control.tar
+cmp fsys-zstd.tar data.tar
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:601"
+( $at_check_trace;
+# Test building and extracting zstd compressed archive
+dpkg-deb --uniform-compression --root-owner-group -Zzstd -b pkg-templ pkg-comp-zstd.deb >/dev/null
+dpkg-deb --ctrl-tarfile pkg-comp-zstd.deb >ctrl-zstd.tar
+dpkg-deb --fsys-tarfile pkg-comp-zstd.deb >fsys-zstd.tar
+cmp ctrl-zstd.tar control.tar
+cmp fsys-zstd.tar data.tar
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:601"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_5
+#AT_START_6
+at_fn_group_banner 6 'deb-format.at:613' \
+  "dpkg-deb .deb format 2.x (bzip2)" "               " 1
+at_xfail=no
+(
+  printf "%s\n" "6. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+printf "%s\n" "deb-format.at:616" >"$at_check_line_file"
+(! command -v gzip >/dev/null) \
+  && at_fn_check_skip 77 "$at_srcdir/deb-format.at:616"
+printf "%s\n" "deb-format.at:617" >"$at_check_line_file"
+(! command -v bzip2 >/dev/null) \
+  && at_fn_check_skip 77 "$at_srcdir/deb-format.at:617"
+
+
+
+
+  mkdir -p 'pkg-deb-format/DEBIAN'
+
+  cat >'pkg-deb-format/DEBIAN/control' <<CTRL_TEMPL
+Package: pkg-deb-format
+Version: 0.0-1
+Section: test
+Priority: extra
+Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+Architecture: all
+Description: test package
+CTRL_TEMPL
+
+
+
+  $PERL -p -i -E 's/^Description:.*$/$& - deb format support/' 'pkg-deb-format/DEBIAN/control'
+
+  cat >pkg-deb-format/file-templ <<'_ATEOF'
+test
+_ATEOF
+
+  { set +x
+printf "%s\n" "$at_srcdir/deb-format.at:619:
+  # Initialize the template package
+  mv pkg-deb-format pkg-templ
+  cp \$top_srcdir/ChangeLog.old pkg-templ/
+  chmod 0644 pkg-templ/ChangeLog.old
+  chmod -R u+w pkg-templ
+  find pkg-templ | xargs touch -t 197001010100.00
+  dpkg-deb --uniform-compression --root-owner-group -Znone -b pkg-templ >/dev/null
+
+  # Extract the base members
+  ar x pkg-templ.deb
+  gzip -cn control.tar >control.tar.gz
+  gzip -cn data.tar >data.tar.gz
+  "
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:619"
+( $at_check_trace;
+  # Initialize the template package
+  mv pkg-deb-format pkg-templ
+  cp $top_srcdir/ChangeLog.old pkg-templ/
+  chmod 0644 pkg-templ/ChangeLog.old
+  chmod -R u+w pkg-templ
+  find pkg-templ | xargs touch -t 197001010100.00
+  dpkg-deb --uniform-compression --root-owner-group -Znone -b pkg-templ >/dev/null
+
+  # Extract the base members
+  ar x pkg-templ.deb
+  gzip -cn control.tar >control.tar.gz
+  gzip -cn data.tar >data.tar.gz
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:619"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:620:
+# Extract the base members
+bzip2 -c data.tar >data.tar.bz2
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:620"
+( $at_check_trace;
+# Extract the base members
+bzip2 -c data.tar >data.tar.bz2
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:620"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:625:
+# Test data.tar.bz2 member
+ar qSc pkg-data-bz2.deb debian-binary control.tar.gz data.tar.bz2
+ar t pkg-data-bz2.deb
+dpkg-deb -c pkg-data-bz2.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:625"
+( $at_check_trace;
+# Test data.tar.bz2 member
+ar qSc pkg-data-bz2.deb debian-binary control.tar.gz data.tar.bz2
+ar t pkg-data-bz2.deb
+dpkg-deb -c pkg-data-bz2.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "debian-binary
+control.tar.gz
+data.tar.bz2
+drwxr-xr-x root/root         0 1970-01-01 00:00 ./
+-rw-r--r-- root/root    641345 1970-01-01 00:00 ./ChangeLog.old
+-rw-r--r-- root/root         5 1970-01-01 00:00 ./file-templ
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:625"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_6
+#AT_START_7
+at_fn_group_banner 7 'deb-format.at:641' \
+  "dpkg-deb .deb format 2.x (lzma)" "                " 1
+at_xfail=no
+(
+  printf "%s\n" "7. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+printf "%s\n" "deb-format.at:644" >"$at_check_line_file"
+(! command -v gzip >/dev/null) \
+  && at_fn_check_skip 77 "$at_srcdir/deb-format.at:644"
+printf "%s\n" "deb-format.at:645" >"$at_check_line_file"
+(! command -v lzma >/dev/null) \
+  && at_fn_check_skip 77 "$at_srcdir/deb-format.at:645"
+
+
+
+
+  mkdir -p 'pkg-deb-format/DEBIAN'
+
+  cat >'pkg-deb-format/DEBIAN/control' <<CTRL_TEMPL
+Package: pkg-deb-format
+Version: 0.0-1
+Section: test
+Priority: extra
+Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+Architecture: all
+Description: test package
+CTRL_TEMPL
+
+
+
+  $PERL -p -i -E 's/^Description:.*$/$& - deb format support/' 'pkg-deb-format/DEBIAN/control'
+
+  cat >pkg-deb-format/file-templ <<'_ATEOF'
+test
+_ATEOF
+
+  { set +x
+printf "%s\n" "$at_srcdir/deb-format.at:647:
+  # Initialize the template package
+  mv pkg-deb-format pkg-templ
+  cp \$top_srcdir/ChangeLog.old pkg-templ/
+  chmod 0644 pkg-templ/ChangeLog.old
+  chmod -R u+w pkg-templ
+  find pkg-templ | xargs touch -t 197001010100.00
+  dpkg-deb --uniform-compression --root-owner-group -Znone -b pkg-templ >/dev/null
+
+  # Extract the base members
+  ar x pkg-templ.deb
+  gzip -cn control.tar >control.tar.gz
+  gzip -cn data.tar >data.tar.gz
+  "
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:647"
+( $at_check_trace;
+  # Initialize the template package
+  mv pkg-deb-format pkg-templ
+  cp $top_srcdir/ChangeLog.old pkg-templ/
+  chmod 0644 pkg-templ/ChangeLog.old
+  chmod -R u+w pkg-templ
+  find pkg-templ | xargs touch -t 197001010100.00
+  dpkg-deb --uniform-compression --root-owner-group -Znone -b pkg-templ >/dev/null
+
+  # Extract the base members
+  ar x pkg-templ.deb
+  gzip -cn control.tar >control.tar.gz
+  gzip -cn data.tar >data.tar.gz
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:647"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:648:
+# Extract the base members
+lzma -c data.tar >data.tar.lzma
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:648"
+( $at_check_trace;
+# Extract the base members
+lzma -c data.tar >data.tar.lzma
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:648"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-format.at:653:
+# Test data.tar.lzma member
+ar qSc pkg-data-lzma.deb debian-binary control.tar.gz data.tar.lzma
+ar t pkg-data-lzma.deb
+dpkg-deb -c pkg-data-lzma.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-format.at:653"
+( $at_check_trace;
+# Test data.tar.lzma member
+ar qSc pkg-data-lzma.deb debian-binary control.tar.gz data.tar.lzma
+ar t pkg-data-lzma.deb
+dpkg-deb -c pkg-data-lzma.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "debian-binary
+control.tar.gz
+data.tar.lzma
+drwxr-xr-x root/root         0 1970-01-01 00:00 ./
+-rw-r--r-- root/root    641345 1970-01-01 00:00 ./ChangeLog.old
+-rw-r--r-- root/root         5 1970-01-01 00:00 ./file-templ
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-format.at:653"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_7
+#AT_START_8
+at_fn_group_banner 8 'deb-content.at:1' \
+  "dpkg-deb .deb conffiles" "                        " 1
+at_xfail=no
+(
+  printf "%s\n" "8. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+
+
+  mkdir -p 'pkg-conff-duped/DEBIAN'
+
+  cat >'pkg-conff-duped/DEBIAN/control' <<CTRL_TEMPL
+Package: pkg-conff-duped
+Version: 0.0-1
+Section: test
+Priority: extra
+Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+Architecture: all
+Description: test package
+CTRL_TEMPL
+
+
+
+  mkdir -p 'pkg-conff-duped/DEBIAN'
+
+  cat >'pkg-conff-duped/DEBIAN/conffiles' <<CTRL_TEMPL
+/test-conffile-1
+/test-conffile-2
+/test-conffile-1
+CTRL_TEMPL
+
+cat >pkg-conff-duped/test-conffile-1 <<'_ATEOF'
+test init
+_ATEOF
+
+cat >pkg-conff-duped/test-conffile-2 <<'_ATEOF'
+test init
+_ATEOF
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-content.at:12:
+# Duplicate conffile entries should produce a warning.
+dpkg-deb -b pkg-conff-duped
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-content.at:12"
+( $at_check_trace;
+# Duplicate conffile entries should produce a warning.
+dpkg-deb -b pkg-conff-duped
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "dpkg-deb: warning: conffile name '/test-conffile-1' is duplicated
+dpkg-deb: warning: ignoring 1 warning about the control file(s)
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/deb-content.at:12"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+
+  mkdir -p 'pkg-conff-noeol/DEBIAN'
+
+  cat >'pkg-conff-noeol/DEBIAN/control' <<CTRL_TEMPL
+Package: pkg-conff-noeol
+Version: 0.0-1
+Section: test
+Priority: extra
+Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+Architecture: all
+Description: test package
+CTRL_TEMPL
+
+
+printf "/test-conffile-1" >"pkg-conff-noeol/DEBIAN/conffiles"
+cat >pkg-conff-noeol/test-conffile-1 <<'_ATEOF'
+test init
+_ATEOF
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-content.at:23:
+# Conffiles need a final newline to guarantee there's been no accidental
+# file truncation.
+dpkg-deb -b pkg-conff-noeol pkg-conff-noeol.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-content.at:23"
+( $at_check_trace;
+# Conffiles need a final newline to guarantee there's been no accidental
+# file truncation.
+dpkg-deb -b pkg-conff-noeol pkg-conff-noeol.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "dpkg-deb: error: conffile name '/test-conffile-1' is too long, or missing final newline
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 2 $at_status "$at_srcdir/deb-content.at:23"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+
+  mkdir -p 'pkg-conff-noabs/DEBIAN'
+
+  cat >'pkg-conff-noabs/DEBIAN/control' <<CTRL_TEMPL
+Package: pkg-conff-noabs
+Version: 0.0-1
+Section: test
+Priority: extra
+Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+Architecture: all
+Description: test package
+CTRL_TEMPL
+
+
+
+  mkdir -p 'pkg-conff-noabs/DEBIAN'
+
+  cat >'pkg-conff-noabs/DEBIAN/conffiles' <<CTRL_TEMPL
+test-conffile-rel
+CTRL_TEMPL
+
+cat >pkg-conff-noabs/test-conffile-rel <<'_ATEOF'
+test init
+_ATEOF
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-content.at:34:
+# Conffiles must use absolute pathnames.
+dpkg-deb -b pkg-conff-noabs pkg-conff-noabs.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-content.at:34"
+( $at_check_trace;
+# Conffiles must use absolute pathnames.
+dpkg-deb -b pkg-conff-noabs pkg-conff-noabs.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "dpkg-deb: error: conffile name 'test-conffile-rel' is not an absolute pathname
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 2 $at_status "$at_srcdir/deb-content.at:34"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+
+  mkdir -p 'pkg-conff-empty/DEBIAN'
+
+  cat >'pkg-conff-empty/DEBIAN/control' <<CTRL_TEMPL
+Package: pkg-conff-empty
+Version: 0.0-1
+Section: test
+Priority: extra
+Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+Architecture: all
+Description: test package
+CTRL_TEMPL
+
+
+printf "   \n" >"pkg-conff-empty/DEBIAN/conffiles"
+{ set +x
+printf "%s\n" "$at_srcdir/deb-content.at:42:
+# Conffiles must not contain empty lines.
+dpkg-deb -b pkg-conff-empty pkg-conff-empty.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-content.at:42"
+( $at_check_trace;
+# Conffiles must not contain empty lines.
+dpkg-deb -b pkg-conff-empty pkg-conff-empty.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "dpkg-deb: error: empty and whitespace-only lines are not allowed in conffiles
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 2 $at_status "$at_srcdir/deb-content.at:42"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+
+  mkdir -p 'pkg-conff-space-prefix/DEBIAN'
+
+  cat >'pkg-conff-space-prefix/DEBIAN/control' <<CTRL_TEMPL
+Package: pkg-conff-space-prefix
+Version: 0.0-1
+Section: test
+Priority: extra
+Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+Architecture: all
+Description: test package
+CTRL_TEMPL
+
+
+
+  mkdir -p 'pkg-conff-space-prefix/DEBIAN'
+
+  cat >'pkg-conff-space-prefix/DEBIAN/conffiles' <<CTRL_TEMPL
+ /test-conffile
+CTRL_TEMPL
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-content.at:50:
+# Conffiles must not contain prefixed spaces.
+dpkg-deb -b pkg-conff-space-prefix pkg-conff-space-prefix.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-content.at:50"
+( $at_check_trace;
+# Conffiles must not contain prefixed spaces.
+dpkg-deb -b pkg-conff-space-prefix pkg-conff-space-prefix.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "dpkg-deb: error: line with conffile filename '/test-conffile' has leading white spaces
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 2 $at_status "$at_srcdir/deb-content.at:50"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+
+  mkdir -p 'pkg-conff-unknown-flag/DEBIAN'
+
+  cat >'pkg-conff-unknown-flag/DEBIAN/control' <<CTRL_TEMPL
+Package: pkg-conff-unknown-flag
+Version: 0.0-1
+Section: test
+Priority: extra
+Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+Architecture: all
+Description: test package
+CTRL_TEMPL
+
+
+
+  mkdir -p 'pkg-conff-unknown-flag/DEBIAN'
+
+  cat >'pkg-conff-unknown-flag/DEBIAN/conffiles' <<CTRL_TEMPL
+unknown-flag /test-conffile
+CTRL_TEMPL
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-content.at:58:
+# Conffiles marked with an unknown flag.
+dpkg-deb -b pkg-conff-unknown-flag pkg-conff-unknown-flag.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-content.at:58"
+( $at_check_trace;
+# Conffiles marked with an unknown flag.
+dpkg-deb -b pkg-conff-unknown-flag pkg-conff-unknown-flag.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "dpkg-deb: error: unknown flag 'unknown-flag' for conffile '/test-conffile'
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 2 $at_status "$at_srcdir/deb-content.at:58"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+
+  mkdir -p 'pkg-conff-missing-pathname/DEBIAN'
+
+  cat >'pkg-conff-missing-pathname/DEBIAN/control' <<CTRL_TEMPL
+Package: pkg-conff-missing-pathname
+Version: 0.0-1
+Section: test
+Priority: extra
+Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+Architecture: all
+Description: test package
+CTRL_TEMPL
+
+
+printf "unknown-flag \n" >"pkg-conff-missing-pathname/DEBIAN/conffiles"
+{ set +x
+printf "%s\n" "$at_srcdir/deb-content.at:66:
+# Conffiles need a pathname, in addition to a flag.
+dpkg-deb -b pkg-conff-missing-pathname pkg-conff-missing-pathname.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-content.at:66"
+( $at_check_trace;
+# Conffiles need a pathname, in addition to a flag.
+dpkg-deb -b pkg-conff-missing-pathname pkg-conff-missing-pathname.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "dpkg-deb: error: conffile name missing after flag 'unknown-flag'
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 2 $at_status "$at_srcdir/deb-content.at:66"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+
+  mkdir -p 'pkg-conff-removed-missing/DEBIAN'
+
+  cat >'pkg-conff-removed-missing/DEBIAN/control' <<CTRL_TEMPL
+Package: pkg-conff-removed-missing
+Version: 0.0-1
+Section: test
+Priority: extra
+Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+Architecture: all
+Description: test package
+CTRL_TEMPL
+
+
+
+  mkdir -p 'pkg-conff-removed-missing/DEBIAN'
+
+  cat >'pkg-conff-removed-missing/DEBIAN/conffiles' <<CTRL_TEMPL
+remove-on-upgrade /test-conffile-missing
+CTRL_TEMPL
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-content.at:74:
+# Conffiles marked for removal must not be present.
+dpkg-deb -b pkg-conff-removed-missing pkg-conff-removed-missing.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-content.at:74"
+( $at_check_trace;
+# Conffiles marked for removal must not be present.
+dpkg-deb -b pkg-conff-removed-missing pkg-conff-removed-missing.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/deb-content.at:74"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+
+  mkdir -p 'pkg-conff-removed-duped/DEBIAN'
+
+  cat >'pkg-conff-removed-duped/DEBIAN/control' <<CTRL_TEMPL
+Package: pkg-conff-removed-duped
+Version: 0.0-1
+Section: test
+Priority: extra
+Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+Architecture: all
+Description: test package
+CTRL_TEMPL
+
+
+
+  mkdir -p 'pkg-conff-removed-duped/DEBIAN'
+
+  cat >'pkg-conff-removed-duped/DEBIAN/conffiles' <<CTRL_TEMPL
+remove-on-upgrade /test-conffile-1
+remove-on-upgrade /test-conffile-2
+remove-on-upgrade /test-conffile-1
+CTRL_TEMPL
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-content.at:83:
+# Duplicate conffile entries should produce a warning.
+dpkg-deb -b pkg-conff-removed-duped
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-content.at:83"
+( $at_check_trace;
+# Duplicate conffile entries should produce a warning.
+dpkg-deb -b pkg-conff-removed-duped
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "dpkg-deb: warning: conffile name '/test-conffile-1' is duplicated
+dpkg-deb: warning: ignoring 1 warning about the control file(s)
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/deb-content.at:83"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+
+  mkdir -p 'pkg-conff-removed-noeol/DEBIAN'
+
+  cat >'pkg-conff-removed-noeol/DEBIAN/control' <<CTRL_TEMPL
+Package: pkg-conff-removed-noeol
+Version: 0.0-1
+Section: test
+Priority: extra
+Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+Architecture: all
+Description: test package
+CTRL_TEMPL
+
+
+printf "remove-on-upgrade /test-conffile-1" >"pkg-conff-removed-noeol/DEBIAN/conffiles"
+{ set +x
+printf "%s\n" "$at_srcdir/deb-content.at:92:
+# Conffiles need a final newline to guarantee there has been no accidental
+# file truncation.
+dpkg-deb -b pkg-conff-removed-noeol pkg-conff-removed-noeol.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-content.at:92"
+( $at_check_trace;
+# Conffiles need a final newline to guarantee there has been no accidental
+# file truncation.
+dpkg-deb -b pkg-conff-removed-noeol pkg-conff-removed-noeol.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "dpkg-deb: error: conffile name 'remove-on-upgrade /test-conffile-1' is too long, or missing final newline
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 2 $at_status "$at_srcdir/deb-content.at:92"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+
+  mkdir -p 'pkg-conff-removed-noabs/DEBIAN'
+
+  cat >'pkg-conff-removed-noabs/DEBIAN/control' <<CTRL_TEMPL
+Package: pkg-conff-removed-noabs
+Version: 0.0-1
+Section: test
+Priority: extra
+Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+Architecture: all
+Description: test package
+CTRL_TEMPL
+
+
+
+  mkdir -p 'pkg-conff-removed-noabs/DEBIAN'
+
+  cat >'pkg-conff-removed-noabs/DEBIAN/conffiles' <<CTRL_TEMPL
+remove-on-upgrade test-conffile-rel
+CTRL_TEMPL
+
+cat >pkg-conff-removed-noabs/test-conffile-rel <<'_ATEOF'
+test init
+_ATEOF
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-content.at:103:
+# Conffiles must use absolute pathnames.
+dpkg-deb -b pkg-conff-removed-noabs pkg-conff-removed-noabs.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-content.at:103"
+( $at_check_trace;
+# Conffiles must use absolute pathnames.
+dpkg-deb -b pkg-conff-removed-noabs pkg-conff-removed-noabs.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "dpkg-deb: error: conffile name 'test-conffile-rel' is not an absolute pathname
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 2 $at_status "$at_srcdir/deb-content.at:103"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+
+  mkdir -p 'pkg-conff-removed-present/DEBIAN'
+
+  cat >'pkg-conff-removed-present/DEBIAN/control' <<CTRL_TEMPL
+Package: pkg-conff-removed-present
+Version: 0.0-1
+Section: test
+Priority: extra
+Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+Architecture: all
+Description: test package
+CTRL_TEMPL
+
+
+
+  mkdir -p 'pkg-conff-removed-present/DEBIAN'
+
+  cat >'pkg-conff-removed-present/DEBIAN/conffiles' <<CTRL_TEMPL
+remove-on-upgrade /test-conffile-present
+CTRL_TEMPL
+
+cat >pkg-conff-removed-present/test-conffile-present <<'_ATEOF'
+test init
+_ATEOF
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-content.at:113:
+# Conffiles marked for removal must not be present.
+dpkg-deb -b pkg-conff-removed-present pkg-conff-removed-present.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-content.at:113"
+( $at_check_trace;
+# Conffiles marked for removal must not be present.
+dpkg-deb -b pkg-conff-removed-present pkg-conff-removed-present.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "dpkg-deb: error: conffile '/test-conffile-present' is present but is requested to be removed
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 2 $at_status "$at_srcdir/deb-content.at:113"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+
+  mkdir -p 'pkg-deb-newline/DEBIAN'
+
+  cat >'pkg-deb-newline/DEBIAN/control' <<CTRL_TEMPL
+Package: pkg-deb-newline
+Version: 0.0-1
+Section: test
+Priority: extra
+Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+Architecture: all
+Description: test package
+CTRL_TEMPL
+
+
+touch 'pkg-deb-newline/file
+newline'
+{ set +x
+printf "%s\n" "$at_srcdir/deb-content.at:122:
+# Cannot create package with newlines in filenames.
+dpkg-deb -b pkg-deb-newline
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-content.at:122"
+( $at_check_trace;
+# Cannot create package with newlines in filenames.
+dpkg-deb -b pkg-deb-newline
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "dpkg-deb: error: newline not allowed in pathname './file
+newline'
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 2 $at_status "$at_srcdir/deb-content.at:122"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_8
+#AT_START_9
+at_fn_group_banner 9 'deb-fields.at:1' \
+  "dpkg-deb .deb fields" "                           " 1
+at_xfail=no
+(
+  printf "%s\n" "9. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+
+
+  mkdir -p 'pkg-package-type-void/DEBIAN'
+
+  cat >'pkg-package-type-void/DEBIAN/control' <<CTRL_TEMPL
+Package: pkg-package-type-void
+Version: 0.0-1
+Section: test
+Priority: extra
+Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+Architecture: all
+Description: test package
+CTRL_TEMPL
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-fields.at:5:
+dpkg-deb -b pkg-package-type-void
+# Test absence of Package-Type field.
+test -z \"\$(dpkg-deb -f pkg-package-type-void.deb Package-Type)\"
+"
+at_fn_check_prepare_notrace 'a $(...) command substitution' "deb-fields.at:5"
+( $at_check_trace;
+dpkg-deb -b pkg-package-type-void
+# Test absence of Package-Type field.
+test -z "$(dpkg-deb -f pkg-package-type-void.deb Package-Type)"
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/deb-fields.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+
+  mkdir -p 'pkg-package-type-use/DEBIAN'
+
+  cat >'pkg-package-type-use/DEBIAN/control' <<CTRL_TEMPL
+Package: pkg-package-type-use
+Version: 0.0-1
+Section: test
+Priority: extra
+Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+Architecture: all
+Description: test package
+CTRL_TEMPL
+
+
+
+  $PERL -p -i -E 's/^Package: .*$/$&\nPackage-Type: udeb/' 'pkg-package-type-use/DEBIAN/control'
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-fields.at:14:
+dpkg-deb -b pkg-package-type-use
+# Test presence of Package-Type field.
+test -n \"\$(dpkg-deb -f pkg-package-type-use.deb Package-Type)\"
+"
+at_fn_check_prepare_notrace 'a $(...) command substitution' "deb-fields.at:14"
+( $at_check_trace;
+dpkg-deb -b pkg-package-type-use
+# Test presence of Package-Type field.
+test -n "$(dpkg-deb -f pkg-package-type-use.deb Package-Type)"
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/deb-fields.at:14"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+
+  mkdir -p 'pkg-obsolete-fields/DEBIAN'
+
+  cat >'pkg-obsolete-fields/DEBIAN/control' <<CTRL_TEMPL
+Package: pkg-obsolete-fields
+Version: 0.0-1
+Section: test
+Priority: extra
+Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+Architecture: all
+Description: test package
+CTRL_TEMPL
+
+
+
+  $PERL -p -i -E 's/^Priority:/Class:/' 'pkg-obsolete-fields/DEBIAN/control'
+
+
+  $PERL -p -i -E 's/^Version: 0.0-1$/Version: 0.0/' 'pkg-obsolete-fields/DEBIAN/control'
+
+
+  $PERL -p -i -E 's/^Version:.*$/$&\nRevision: 1/' 'pkg-obsolete-fields/DEBIAN/control'
+
+
+  $PERL -p -i -E 's/^Package:.*$/$&\nOptional: suggests/' 'pkg-obsolete-fields/DEBIAN/control'
+
+
+  $PERL -p -i -E 's/^Package:.*$/$&\nRecommended: recommends/' 'pkg-obsolete-fields/DEBIAN/control'
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-fields.at:31:
+dpkg-deb -b pkg-obsolete-fields
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-fields.at:31"
+( $at_check_trace;
+dpkg-deb -b pkg-obsolete-fields
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "dpkg-deb: warning: parsing file 'pkg-obsolete-fields/DEBIAN/control' near line 2 package 'pkg-obsolete-fields':
+ obsolete 'Recommended' field used
+dpkg-deb: warning: parsing file 'pkg-obsolete-fields/DEBIAN/control' near line 3 package 'pkg-obsolete-fields':
+ obsolete 'Optional' field used
+dpkg-deb: warning: parsing file 'pkg-obsolete-fields/DEBIAN/control' near line 5 package 'pkg-obsolete-fields':
+ obsolete 'Revision' field used
+dpkg-deb: warning: parsing file 'pkg-obsolete-fields/DEBIAN/control' near line 7 package 'pkg-obsolete-fields':
+ obsolete 'Class' field used
+dpkg-deb: warning: ignoring 4 warnings about the control file(s)
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/deb-fields.at:31"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-fields.at:44:
+dpkg-deb -f pkg-obsolete-fields.deb \\
+  Version Recommends Suggests Priority 2>/dev/null
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-fields.at:44"
+( $at_check_trace;
+dpkg-deb -f pkg-obsolete-fields.deb \
+  Version Recommends Suggests Priority 2>/dev/null
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "Version: 0.0-1
+Recommends: recommends
+Suggests: suggests
+Priority: extra
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-fields.at:44"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_9
+#AT_START_10
+at_fn_group_banner 10 'deb-split.at:1' \
+  "dpkg-split options" "                             " 2
+at_xfail=no
+(
+  printf "%s\n" "10. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-split.at:4: dpkg-split --version"
+at_fn_check_prepare_trace "deb-split.at:4"
+( $at_check_trace; dpkg-split --version
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/deb-split.at:4"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-split.at:5: dpkg-split --help"
+at_fn_check_prepare_trace "deb-split.at:5"
+( $at_check_trace; dpkg-split --help
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/deb-split.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_10
+#AT_START_11
+at_fn_group_banner 11 'deb-split.at:9' \
+  "dpkg-split .deb format" "                         " 2
+at_xfail=no
+(
+  printf "%s\n" "11. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+
+
+  mkdir -p 'pkg-split/DEBIAN'
+
+  cat >'pkg-split/DEBIAN/control' <<CTRL_TEMPL
+Package: pkg-split
+Version: 0.0-1
+Section: test
+Priority: extra
+Maintainer: Dpkg Developers <debian-dpkg@lists.debian.org>
+Architecture: all
+Description: test package
+CTRL_TEMPL
+
+
+
+  $PERL -p -i -E 's/^Description:.*$/$& - normal package to be split/' 'pkg-split/DEBIAN/control'
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-split.at:15:
+# Initialize the template package
+chmod -R u+w pkg-split
+\$PERL -E 'print \"fade\" foreach 1 .. 1024 * 512' >pkg-split/data-file
+find pkg-split | xargs touch -t 197001010100.00
+dpkg-deb --root-owner-group -Znone -b pkg-split >/dev/null
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-split.at:15"
+( $at_check_trace;
+# Initialize the template package
+chmod -R u+w pkg-split
+$PERL -E 'print "fade" foreach 1 .. 1024 * 512' >pkg-split/data-file
+find pkg-split | xargs touch -t 197001010100.00
+dpkg-deb --root-owner-group -Znone -b pkg-split >/dev/null
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-split.at:15"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-split.at:23:
+# Test splitting a package (in 10 parts: 9 * 210 KiB B + 158 KiB)
+dpkg-split -S 210 -s pkg-split.deb pkg-split-part
+for p in   1 2 3 4 5 6 7 8 9 10 ; do
+  test -f pkg-split-part.\${p}of10.deb
+done
+ar x pkg-split-part.1of10.deb data.1
+"
+at_fn_check_prepare_notrace 'a ${...} parameter expansion' "deb-split.at:23"
+( $at_check_trace;
+# Test splitting a package (in 10 parts: 9 * 210 KiB B + 158 KiB)
+dpkg-split -S 210 -s pkg-split.deb pkg-split-part
+for p in   1 2 3 4 5 6 7 8 9 10 ; do
+  test -f pkg-split-part.${p}of10.deb
+done
+ar x pkg-split-part.1of10.deb data.1
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "Splitting package pkg-split into 10 parts: 1 2 3 4 5 6 7 8 9 10 done
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-split.at:23"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+DEB_SPLIT_MD5SUM=1684b6cdb72bf035ccafd653f307d3da
+DEB_SPLIT_LENGTH=2109632
+DEB_SPLIT_PART_LENGTH=214016
+DEB_SPLIT_PART_SIZE=214222
+DEB_SPLIT_LAST_LENGTH=183488
+DEB_SPLIT_LAST_SIZE=183694
+
+DEB_SPLIT_PART_SIZE_VERSION=$((DEB_SPLIT_PART_SIZE + 2))
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-split.at:42:
+# Test debian-split with 2.x version
+ar x pkg-split-part.1of10.deb debian-split
+\$PERL -p -i -E 's/.*/2.999/ if \$. == 1' debian-split
+ar qSc pkg-split-part-version-2x.deb debian-split data.1
+ar t pkg-split-part-version-2x.deb
+dpkg-split -I pkg-split-part-version-2x.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-split.at:42"
+( $at_check_trace;
+# Test debian-split with 2.x version
+ar x pkg-split-part.1of10.deb debian-split
+$PERL -p -i -E 's/.*/2.999/ if $. == 1' debian-split
+ar qSc pkg-split-part-version-2x.deb debian-split data.1
+ar t pkg-split-part-version-2x.deb
+dpkg-split -I pkg-split-part-version-2x.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "debian-split
+data.1
+pkg-split-part-version-2x.deb:
+    Part format version:            2.999
+    Part of package:                pkg-split
+        ... version:                0.0-1
+        ... architecture:           all
+        ... MD5 checksum:           $DEB_SPLIT_MD5SUM
+        ... length:                 $DEB_SPLIT_LENGTH bytes
+        ... split every:            $DEB_SPLIT_PART_LENGTH bytes
+    Part number:                    1/10
+    Part length:                    $DEB_SPLIT_PART_LENGTH bytes
+    Part offset:                    0 bytes
+    Part file size (used portion):  $DEB_SPLIT_PART_SIZE_VERSION bytes
+
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-split.at:42"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+DEB_SPLIT_PART_SIZE_MAGIC_EXTRA=$((DEB_SPLIT_PART_SIZE + 10))
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-split.at:68:
+# Test debian-split with extra lines
+ar x pkg-split-part.1of10.deb debian-split
+echo \"extra line\" >>debian-split
+ar qSc pkg-split-part-magic-extra.deb debian-split data.1
+ar t pkg-split-part-magic-extra.deb
+dpkg-split -I pkg-split-part-magic-extra.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-split.at:68"
+( $at_check_trace;
+# Test debian-split with extra lines
+ar x pkg-split-part.1of10.deb debian-split
+echo "extra line" >>debian-split
+ar qSc pkg-split-part-magic-extra.deb debian-split data.1
+ar t pkg-split-part-magic-extra.deb
+dpkg-split -I pkg-split-part-magic-extra.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "debian-split
+data.1
+pkg-split-part-magic-extra.deb:
+    Part format version:            2.1
+    Part of package:                pkg-split
+        ... version:                0.0-1
+        ... architecture:           all
+        ... MD5 checksum:           $DEB_SPLIT_MD5SUM
+        ... length:                 $DEB_SPLIT_LENGTH bytes
+        ... split every:            $DEB_SPLIT_PART_LENGTH bytes
+    Part number:                    1/10
+    Part length:                    $DEB_SPLIT_PART_LENGTH bytes
+    Part offset:                    0 bytes
+    Part file size (used portion):  $DEB_SPLIT_PART_SIZE_MAGIC_EXTRA bytes
+
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-split.at:68"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-split.at:92:
+# Test missing debian-split
+cp pkg-split-part.1of10.deb pkg-split-part-missing-magic.deb
+ar d pkg-split-part-missing-magic.deb debian-split
+ar t pkg-split-part-missing-magic.deb
+dpkg-split -I pkg-split-part-missing-magic.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-split.at:92"
+( $at_check_trace;
+# Test missing debian-split
+cp pkg-split-part.1of10.deb pkg-split-part-missing-magic.deb
+ar d pkg-split-part-missing-magic.deb debian-split
+ar t pkg-split-part-missing-magic.deb
+dpkg-split -I pkg-split-part-missing-magic.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "data.1
+file 'pkg-split-part-missing-magic.deb' is not an archive part
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-split.at:92"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-split.at:102:
+# Test missing data part member
+cp pkg-split-part.1of10.deb pkg-split-part-missing-data.deb
+ar d pkg-split-part-missing-data.deb data.1
+ar t pkg-split-part-missing-data.deb
+dpkg-split -I pkg-split-part-missing-data.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-split.at:102"
+( $at_check_trace;
+# Test missing data part member
+cp pkg-split-part.1of10.deb pkg-split-part-missing-data.deb
+ar d pkg-split-part-missing-data.deb data.1
+ar t pkg-split-part-missing-data.deb
+dpkg-split -I pkg-split-part-missing-data.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "dpkg-split: error: unexpected end of file in reading data part member ar header in pkg-split-part-missing-data.deb
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "debian-split
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/deb-split.at:102"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-split.at:112:
+# Test duplicate debian-split member
+ar x pkg-split-part.1of10.deb debian-split data.1
+ar qSc pkg-split-part-duplicate-magic.deb debian-split debian-split data.1
+ar t pkg-split-part-duplicate-magic.deb
+dpkg-split -I pkg-split-part-duplicate-magic.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-split.at:112"
+( $at_check_trace;
+# Test duplicate debian-split member
+ar x pkg-split-part.1of10.deb debian-split data.1
+ar qSc pkg-split-part-duplicate-magic.deb debian-split debian-split data.1
+ar t pkg-split-part-duplicate-magic.deb
+dpkg-split -I pkg-split-part-duplicate-magic.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "dpkg-split: error: file 'pkg-split-part-duplicate-magic.deb' is corrupt - second member is not data member
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "debian-split
+debian-split
+data.1
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/deb-split.at:112"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-split.at:124:
+# Test unknown extra member
+cp pkg-split-part.1of10.deb pkg-split-part-extra-member.deb
+echo \"some content\" >unknown
+ar qS pkg-split-part-extra-member.deb unknown
+ar t pkg-split-part-extra-member.deb
+dpkg-split -I pkg-split-part-extra-member.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-split.at:124"
+( $at_check_trace;
+# Test unknown extra member
+cp pkg-split-part.1of10.deb pkg-split-part-extra-member.deb
+echo "some content" >unknown
+ar qS pkg-split-part-extra-member.deb unknown
+ar t pkg-split-part-extra-member.deb
+dpkg-split -I pkg-split-part-extra-member.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "debian-split
+data.1
+unknown
+pkg-split-part-extra-member.deb:
+    Part format version:            2.1
+    Part of package:                pkg-split
+        ... version:                0.0-1
+        ... architecture:           all
+        ... MD5 checksum:           $DEB_SPLIT_MD5SUM
+        ... length:                 $DEB_SPLIT_LENGTH bytes
+        ... split every:            $DEB_SPLIT_PART_LENGTH bytes
+    Part number:                    1/10
+    Part length:                    $DEB_SPLIT_PART_LENGTH bytes
+    Part offset:                    0 bytes
+    Part file size (used portion):  $DEB_SPLIT_PART_SIZE bytes
+
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-split.at:124"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-split.at:149:
+# Test getting information about the split parts (parsing verification)
+dpkg-split -I pkg-split-part.1of10.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-split.at:149"
+( $at_check_trace;
+# Test getting information about the split parts (parsing verification)
+dpkg-split -I pkg-split-part.1of10.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "pkg-split-part.1of10.deb:
+    Part format version:            2.1
+    Part of package:                pkg-split
+        ... version:                0.0-1
+        ... architecture:           all
+        ... MD5 checksum:           $DEB_SPLIT_MD5SUM
+        ... length:                 $DEB_SPLIT_LENGTH bytes
+        ... split every:            $DEB_SPLIT_PART_LENGTH bytes
+    Part number:                    1/10
+    Part length:                    $DEB_SPLIT_PART_LENGTH bytes
+    Part offset:                    0 bytes
+    Part file size (used portion):  $DEB_SPLIT_PART_SIZE bytes
+
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-split.at:149"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-split.at:166:
+# Test getting information about the split parts (parsing verification)
+dpkg-split -I pkg-split-part.2of10.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-split.at:166"
+( $at_check_trace;
+# Test getting information about the split parts (parsing verification)
+dpkg-split -I pkg-split-part.2of10.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "pkg-split-part.2of10.deb:
+    Part format version:            2.1
+    Part of package:                pkg-split
+        ... version:                0.0-1
+        ... architecture:           all
+        ... MD5 checksum:           $DEB_SPLIT_MD5SUM
+        ... length:                 $DEB_SPLIT_LENGTH bytes
+        ... split every:            $DEB_SPLIT_PART_LENGTH bytes
+    Part number:                    2/10
+    Part length:                    $DEB_SPLIT_PART_LENGTH bytes
+    Part offset:                    214016 bytes
+    Part file size (used portion):  $DEB_SPLIT_PART_SIZE bytes
+
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-split.at:166"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-split.at:183:
+# Test getting information about the split parts (parsing verification)
+dpkg-split -I pkg-split-part.9of10.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-split.at:183"
+( $at_check_trace;
+# Test getting information about the split parts (parsing verification)
+dpkg-split -I pkg-split-part.9of10.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "pkg-split-part.9of10.deb:
+    Part format version:            2.1
+    Part of package:                pkg-split
+        ... version:                0.0-1
+        ... architecture:           all
+        ... MD5 checksum:           $DEB_SPLIT_MD5SUM
+        ... length:                 $DEB_SPLIT_LENGTH bytes
+        ... split every:            $DEB_SPLIT_PART_LENGTH bytes
+    Part number:                    9/10
+    Part length:                    $DEB_SPLIT_PART_LENGTH bytes
+    Part offset:                    1712128 bytes
+    Part file size (used portion):  $DEB_SPLIT_PART_SIZE bytes
+
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-split.at:183"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-split.at:200:
+# Test getting information about the split parts (parsing verification)
+dpkg-split -I pkg-split-part.10of10.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-split.at:200"
+( $at_check_trace;
+# Test getting information about the split parts (parsing verification)
+dpkg-split -I pkg-split-part.10of10.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "pkg-split-part.10of10.deb:
+    Part format version:            2.1
+    Part of package:                pkg-split
+        ... version:                0.0-1
+        ... architecture:           all
+        ... MD5 checksum:           $DEB_SPLIT_MD5SUM
+        ... length:                 $DEB_SPLIT_LENGTH bytes
+        ... split every:            $DEB_SPLIT_PART_LENGTH bytes
+    Part number:                    10/10
+    Part length:                    $DEB_SPLIT_LAST_LENGTH bytes
+    Part offset:                    1926144 bytes
+    Part file size (used portion):  $DEB_SPLIT_LAST_SIZE bytes
+
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-split.at:200"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/deb-split.at:218:
+# Test joining the split parts back together
+dpkg-split -o pkg-joined.deb -j pkg-split-part.*.deb
+cmp pkg-split.deb pkg-joined.deb
+"
+at_fn_check_prepare_notrace 'an embedded newline' "deb-split.at:218"
+( $at_check_trace;
+# Test joining the split parts back together
+dpkg-split -o pkg-joined.deb -j pkg-split-part.*.deb
+cmp pkg-split.deb pkg-joined.deb
+
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "Putting package pkg-split together from 10 parts: 1 2 3 4 5 6 7 8 9 10 done
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/deb-split.at:218"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_11
+#AT_START_12
+at_fn_group_banner 12 'realpath.at:1' \
+  "dpkg-realpath options" "                          " 3
+at_xfail=no
+(
+  printf "%s\n" "12. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/realpath.at:4: dpkg-realpath --version"
+at_fn_check_prepare_trace "realpath.at:4"
+( $at_check_trace; dpkg-realpath --version
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/realpath.at:4"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/realpath.at:5: dpkg-realpath --help"
+at_fn_check_prepare_trace "realpath.at:5"
+( $at_check_trace; dpkg-realpath --help
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/realpath.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_12
+#AT_START_13
+at_fn_group_banner 13 'realpath.at:9' \
+  "dpkg-realpath path resolving" "                   " 3
+at_xfail=no
+(
+  printf "%s\n" "13. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+mkdir -p aa/bb/cc
+mkdir -p zz/yy/xx
+mkdir -p usr/bin
+: >aa/bb/cc/file
+ln -sf aa/bb/cc/file zz/yy/xx/symlink-rel
+ln -sf /aa/bb/cc/file zz/yy/xx/symlink-abs
+: >usr/bin/a-shell
+ln -sf /usr/bin/a-shell usr/bin/sh
+
+tmpdir="$(  $PERL -MCwd=realpath,getcwd -E 'say realpath(getcwd())')"
+export DPKG_ROOT=
+
+# Relative paths
+{ set +x
+printf "%s\n" "$at_srcdir/realpath.at:25: dpkg-realpath aa/bb/cc"
+at_fn_check_prepare_trace "realpath.at:25"
+( $at_check_trace; dpkg-realpath aa/bb/cc
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "$tmpdir/aa/bb/cc
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/realpath.at:25"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/realpath.at:28: dpkg-realpath zz/yy/xx"
+at_fn_check_prepare_trace "realpath.at:28"
+( $at_check_trace; dpkg-realpath zz/yy/xx
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "$tmpdir/zz/yy/xx
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/realpath.at:28"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/realpath.at:30: dpkg-realpath usr/bin"
+at_fn_check_prepare_trace "realpath.at:30"
+( $at_check_trace; dpkg-realpath usr/bin
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "$tmpdir/usr/bin
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/realpath.at:30"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/realpath.at:32: dpkg-realpath aa/bb/cc/file"
+at_fn_check_prepare_trace "realpath.at:32"
+( $at_check_trace; dpkg-realpath aa/bb/cc/file
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "$tmpdir/aa/bb/cc/file
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/realpath.at:32"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/realpath.at:34: dpkg-realpath zz/yy/xx/symlink-rel"
+at_fn_check_prepare_trace "realpath.at:34"
+( $at_check_trace; dpkg-realpath zz/yy/xx/symlink-rel
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "$tmpdir/zz/yy/xx/aa/bb/cc/file
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/realpath.at:34"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/realpath.at:37: dpkg-realpath zz/yy/xx/symlink-abs"
+at_fn_check_prepare_trace "realpath.at:37"
+( $at_check_trace; dpkg-realpath zz/yy/xx/symlink-abs
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "/aa/bb/cc/file
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/realpath.at:37"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/realpath.at:39: dpkg-realpath usr/bin/a-shell"
+at_fn_check_prepare_trace "realpath.at:39"
+( $at_check_trace; dpkg-realpath usr/bin/a-shell
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "$tmpdir/usr/bin/a-shell
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/realpath.at:39"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/realpath.at:42: dpkg-realpath usr/bin/sh"
+at_fn_check_prepare_trace "realpath.at:42"
+( $at_check_trace; dpkg-realpath usr/bin/sh
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "/usr/bin/a-shell
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/realpath.at:42"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+# Absolute paths
+cd /
+{ set +x
+printf "%s\n" "$at_srcdir/realpath.at:47: dpkg-realpath \"\$tmpdir/aa/bb/cc\""
+at_fn_check_prepare_dynamic "dpkg-realpath \"$tmpdir/aa/bb/cc\"" "realpath.at:47"
+( $at_check_trace; dpkg-realpath "$tmpdir/aa/bb/cc"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "$tmpdir/aa/bb/cc
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/realpath.at:47"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/realpath.at:49: dpkg-realpath \"\$tmpdir/zz/yy/xx\""
+at_fn_check_prepare_dynamic "dpkg-realpath \"$tmpdir/zz/yy/xx\"" "realpath.at:49"
+( $at_check_trace; dpkg-realpath "$tmpdir/zz/yy/xx"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "$tmpdir/zz/yy/xx
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/realpath.at:49"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/realpath.at:51: dpkg-realpath \"\$tmpdir/usr/bin\""
+at_fn_check_prepare_dynamic "dpkg-realpath \"$tmpdir/usr/bin\"" "realpath.at:51"
+( $at_check_trace; dpkg-realpath "$tmpdir/usr/bin"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "$tmpdir/usr/bin
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/realpath.at:51"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/realpath.at:53: dpkg-realpath \"\$tmpdir/aa/bb/cc/file\""
+at_fn_check_prepare_dynamic "dpkg-realpath \"$tmpdir/aa/bb/cc/file\"" "realpath.at:53"
+( $at_check_trace; dpkg-realpath "$tmpdir/aa/bb/cc/file"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "$tmpdir/aa/bb/cc/file
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/realpath.at:53"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/realpath.at:56: dpkg-realpath \"\$tmpdir/zz/yy/xx/symlink-rel\""
+at_fn_check_prepare_dynamic "dpkg-realpath \"$tmpdir/zz/yy/xx/symlink-rel\"" "realpath.at:56"
+( $at_check_trace; dpkg-realpath "$tmpdir/zz/yy/xx/symlink-rel"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "$tmpdir/zz/yy/xx/aa/bb/cc/file
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/realpath.at:56"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/realpath.at:59: dpkg-realpath \"\$tmpdir/zz/yy/xx/symlink-abs\""
+at_fn_check_prepare_dynamic "dpkg-realpath \"$tmpdir/zz/yy/xx/symlink-abs\"" "realpath.at:59"
+( $at_check_trace; dpkg-realpath "$tmpdir/zz/yy/xx/symlink-abs"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "/aa/bb/cc/file
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/realpath.at:59"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/realpath.at:61: dpkg-realpath \"\$tmpdir/usr/bin/a-shell\""
+at_fn_check_prepare_dynamic "dpkg-realpath \"$tmpdir/usr/bin/a-shell\"" "realpath.at:61"
+( $at_check_trace; dpkg-realpath "$tmpdir/usr/bin/a-shell"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "$tmpdir/usr/bin/a-shell
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/realpath.at:61"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/realpath.at:64: dpkg-realpath \"\$tmpdir/usr/bin/sh\""
+at_fn_check_prepare_dynamic "dpkg-realpath \"$tmpdir/usr/bin/sh\"" "realpath.at:64"
+( $at_check_trace; dpkg-realpath "$tmpdir/usr/bin/sh"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "/usr/bin/a-shell
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/realpath.at:64"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+# Chrooted paths
+DPKG_ROOT="$tmpdir"
+{ set +x
+printf "%s\n" "$at_srcdir/realpath.at:69: dpkg-realpath /aa/bb/cc"
+at_fn_check_prepare_trace "realpath.at:69"
+( $at_check_trace; dpkg-realpath /aa/bb/cc
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "/aa/bb/cc
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/realpath.at:69"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/realpath.at:71: dpkg-realpath /zz/yy/xx"
+at_fn_check_prepare_trace "realpath.at:71"
+( $at_check_trace; dpkg-realpath /zz/yy/xx
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "/zz/yy/xx
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/realpath.at:71"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/realpath.at:73: dpkg-realpath /usr/bin"
+at_fn_check_prepare_trace "realpath.at:73"
+( $at_check_trace; dpkg-realpath /usr/bin
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "/usr/bin
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/realpath.at:73"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/realpath.at:75: dpkg-realpath /aa/bb/cc/file"
+at_fn_check_prepare_trace "realpath.at:75"
+( $at_check_trace; dpkg-realpath /aa/bb/cc/file
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "/aa/bb/cc/file
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/realpath.at:75"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/realpath.at:77: dpkg-realpath /zz/yy/xx/symlink-rel"
+at_fn_check_prepare_trace "realpath.at:77"
+( $at_check_trace; dpkg-realpath /zz/yy/xx/symlink-rel
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "/zz/yy/xx/aa/bb/cc/file
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/realpath.at:77"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/realpath.at:79: dpkg-realpath /zz/yy/xx/symlink-abs"
+at_fn_check_prepare_trace "realpath.at:79"
+( $at_check_trace; dpkg-realpath /zz/yy/xx/symlink-abs
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "/aa/bb/cc/file
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/realpath.at:79"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/realpath.at:81: dpkg-realpath /usr/bin/a-shell"
+at_fn_check_prepare_trace "realpath.at:81"
+( $at_check_trace; dpkg-realpath /usr/bin/a-shell
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "/usr/bin/a-shell
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/realpath.at:81"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/realpath.at:83: dpkg-realpath /usr/bin/sh"
+at_fn_check_prepare_trace "realpath.at:83"
+( $at_check_trace; dpkg-realpath /usr/bin/sh
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "/usr/bin/a-shell
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/realpath.at:83"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_13
+#AT_START_14
+at_fn_group_banner 14 'divert.at:1' \
+  "dpkg-divert options" "                            " 4
+at_xfail=no
+(
+  printf "%s\n" "14. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+
+  mkdir -p "dpkginst//testdir"
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:6: dpkg-divert --version"
+at_fn_check_prepare_trace "divert.at:6"
+( $at_check_trace; dpkg-divert --version
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:6"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:7: dpkg-divert --help"
+at_fn_check_prepare_trace "divert.at:7"
+( $at_check_trace; dpkg-divert --help
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:7"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:9: dpkg-divert --admindir"
+at_fn_check_prepare_trace "divert.at:9"
+( $at_check_trace; dpkg-divert --admindir
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:9"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:10: \$EGREP -q '(takes a value|needs.*argument)' stderr"
+at_fn_check_prepare_notrace 'a shell pipeline' "divert.at:10"
+( $at_check_trace; $EGREP -q '(takes a value|needs.*argument)' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:10"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:12: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --jachsmitbju"
+at_fn_check_prepare_trace "divert.at:12"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --jachsmitbju
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:12"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:13: \$GREP -q 'unknown option' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'unknown option' stderr" "divert.at:13"
+( $at_check_trace; $GREP -q 'unknown option' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:13"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:15: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --add --remove"
+at_fn_check_prepare_trace "divert.at:15"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --add --remove
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:15"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:16: \$EGREP -q '(conflicting|two).*remove.*add.*' stderr"
+at_fn_check_prepare_notrace 'a shell pipeline' "divert.at:16"
+( $at_check_trace; $EGREP -q '(conflicting|two).*remove.*add.*' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:16"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:18: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --divert"
+at_fn_check_prepare_trace "divert.at:18"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --divert
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:18"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:19: \$EGREP -q '(takes a value|needs.*argument)' stderr"
+at_fn_check_prepare_notrace 'a shell pipeline' "divert.at:19"
+( $at_check_trace; $EGREP -q '(takes a value|needs.*argument)' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:19"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:21: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --divert foo"
+at_fn_check_prepare_trace "divert.at:21"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --divert foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:21"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:22: \$GREP -q 'absolute' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'absolute' stderr" "divert.at:22"
+( $at_check_trace; $GREP -q 'absolute' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:22"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:24: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --divert \"/foo
+bar\""
+at_fn_check_prepare_notrace 'an embedded newline' "divert.at:24"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --divert "/foo
+bar"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:24"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:26: \$GREP -q 'newline' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'newline' stderr" "divert.at:26"
+( $at_check_trace; $GREP -q 'newline' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:26"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:28: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --package"
+at_fn_check_prepare_trace "divert.at:28"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --package
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:28"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:29: \$EGREP -q '(takes a value|needs.*argument)' stderr"
+at_fn_check_prepare_notrace 'a shell pipeline' "divert.at:29"
+( $at_check_trace; $EGREP -q '(takes a value|needs.*argument)' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:29"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:31: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --package \"foo
+bar\""
+at_fn_check_prepare_notrace 'an embedded newline' "divert.at:31"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --package "foo
+bar"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:31"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:33: \$GREP -q 'newline' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'newline' stderr" "divert.at:33"
+( $at_check_trace; $GREP -q 'newline' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:33"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:35: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --add"
+at_fn_check_prepare_trace "divert.at:35"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --add
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:35"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:36: \$GREP -q 'needs a single argument' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'needs a single argument' stderr" "divert.at:36"
+( $at_check_trace; $GREP -q 'needs a single argument' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:36"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:38: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --add foo"
+at_fn_check_prepare_trace "divert.at:38"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --add foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:38"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:39: \$GREP -q 'absolute' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'absolute' stderr" "divert.at:39"
+( $at_check_trace; $GREP -q 'absolute' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:39"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:41: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --add \"/foo
+bar\""
+at_fn_check_prepare_notrace 'an embedded newline' "divert.at:41"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --add "/foo
+bar"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:41"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:43: \$GREP -q 'newline' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'newline' stderr" "divert.at:43"
+( $at_check_trace; $GREP -q 'newline' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:43"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:45: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --add \"/testdir\""
+at_fn_check_prepare_trace "divert.at:45"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --add "/testdir"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:45"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:46: \$EGREP -q 'director(y|ies)' stderr"
+at_fn_check_prepare_notrace 'a shell pipeline' "divert.at:46"
+( $at_check_trace; $EGREP -q 'director(y|ies)' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:46"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:48: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --add --divert bar /foo/bar"
+at_fn_check_prepare_trace "divert.at:48"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --add --divert bar /foo/bar
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:48"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:49: \$GREP -q 'absolute' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'absolute' stderr" "divert.at:49"
+( $at_check_trace; $GREP -q 'absolute' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:49"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:51: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --remove"
+at_fn_check_prepare_trace "divert.at:51"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --remove
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:51"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:52: \$GREP -q 'needs a single argument' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'needs a single argument' stderr" "divert.at:52"
+( $at_check_trace; $GREP -q 'needs a single argument' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:52"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:54: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --remove foo"
+at_fn_check_prepare_trace "divert.at:54"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --remove foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:54"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:55: \$GREP -q 'absolute' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'absolute' stderr" "divert.at:55"
+( $at_check_trace; $GREP -q 'absolute' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:55"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:57: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --remove \"/foo
+bar\""
+at_fn_check_prepare_notrace 'an embedded newline' "divert.at:57"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --remove "/foo
+bar"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:57"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:59: \$GREP -q 'newline' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'newline' stderr" "divert.at:59"
+( $at_check_trace; $GREP -q 'newline' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:59"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:61: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --listpackage"
+at_fn_check_prepare_trace "divert.at:61"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --listpackage
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:61"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:62: \$GREP -q 'needs a single argument' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'needs a single argument' stderr" "divert.at:62"
+( $at_check_trace; $GREP -q 'needs a single argument' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:62"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:64: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --listpackage foo"
+at_fn_check_prepare_trace "divert.at:64"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --listpackage foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:64"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:65: \$GREP -q 'absolute' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'absolute' stderr" "divert.at:65"
+( $at_check_trace; $GREP -q 'absolute' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:65"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:67: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --listpackage \"/foo
+bar\""
+at_fn_check_prepare_notrace 'an embedded newline' "divert.at:67"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --listpackage "/foo
+bar"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:67"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:69: \$GREP -q 'newline' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'newline' stderr" "divert.at:69"
+( $at_check_trace; $GREP -q 'newline' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:69"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:71: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --truename"
+at_fn_check_prepare_trace "divert.at:71"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --truename
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:71"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:72: \$GREP -q 'needs a single argument' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'needs a single argument' stderr" "divert.at:72"
+( $at_check_trace; $GREP -q 'needs a single argument' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:72"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:74: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --truename foo"
+at_fn_check_prepare_trace "divert.at:74"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --truename foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:74"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:75: \$GREP -q 'absolute' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'absolute' stderr" "divert.at:75"
+( $at_check_trace; $GREP -q 'absolute' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:75"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:77: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --truename \"/foo
+bar\""
+at_fn_check_prepare_notrace 'an embedded newline' "divert.at:77"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --truename "/foo
+bar"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:77"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:79: \$GREP -q 'newline' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'newline' stderr" "divert.at:79"
+( $at_check_trace; $GREP -q 'newline' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:79"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_14
+#AT_START_15
+at_fn_group_banner 15 'divert.at:83' \
+  "dpkg-divert query (empty db)" "                   " 4
+at_xfail=no
+(
+  printf "%s\n" "15. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+
+  mkdir -p "dpkgdb"
+  : >dpkgdb/diversions
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:88: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list"
+at_fn_check_prepare_trace "divert.at:88"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:88"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:89: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list '*'"
+at_fn_check_prepare_trace "divert.at:89"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list '*'
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:89"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:90: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list 'baz'"
+at_fn_check_prepare_trace "divert.at:90"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list 'baz'
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:90"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_15
+#AT_START_16
+at_fn_group_banner 16 'divert.at:94' \
+  "dpkg-divert query (list)" "                       " 4
+at_xfail=no
+(
+  printf "%s\n" "16. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+
+  mkdir -p "dpkgdb"
+  cat >dpkgdb/diversions <<'_ATEOF'
+/bin/sh
+/bin/sh.distrib
+dash
+/usr/share/man/man1/sh.1.gz
+/usr/share/man/man1/sh.distrib.1.gz
+dash
+/usr/bin/nm
+/usr/bin/nm.single
+binutils-multiarch
+_ATEOF
+
+
+
+
+
+
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:118: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list"
+at_fn_check_prepare_trace "divert.at:118"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "diversion of /usr/bin/nm to /usr/bin/nm.single by binutils-multiarch
+diversion of /usr/share/man/man1/sh.1.gz to /usr/share/man/man1/sh.distrib.1.gz by dash
+diversion of /bin/sh to /bin/sh.distrib by dash
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:118"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:119: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list '*'"
+at_fn_check_prepare_trace "divert.at:119"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list '*'
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "diversion of /usr/bin/nm to /usr/bin/nm.single by binutils-multiarch
+diversion of /usr/share/man/man1/sh.1.gz to /usr/share/man/man1/sh.distrib.1.gz by dash
+diversion of /bin/sh to /bin/sh.distrib by dash
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:119"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:120: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list ''"
+at_fn_check_prepare_trace "divert.at:120"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list ''
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:120"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:122: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list '???????'"
+at_fn_check_prepare_trace "divert.at:122"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list '???????'
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "diversion of /bin/sh to /bin/sh.distrib by dash
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:122"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:123: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list '*/sh'"
+at_fn_check_prepare_trace "divert.at:123"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list '*/sh'
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "diversion of /bin/sh to /bin/sh.distrib by dash
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:123"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:124: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list '/bin/*'"
+at_fn_check_prepare_trace "divert.at:124"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list '/bin/*'
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "diversion of /bin/sh to /bin/sh.distrib by dash
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:124"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:125: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list binutils-multiarch"
+at_fn_check_prepare_trace "divert.at:125"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list binutils-multiarch
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "diversion of /usr/bin/nm to /usr/bin/nm.single by binutils-multiarch
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:125"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:126: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list /bin/sh"
+at_fn_check_prepare_trace "divert.at:126"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list /bin/sh
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "diversion of /bin/sh to /bin/sh.distrib by dash
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:126"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:127: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list -- /bin/sh"
+at_fn_check_prepare_trace "divert.at:127"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list -- /bin/sh
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "diversion of /bin/sh to /bin/sh.distrib by dash
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:127"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:128: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list /usr/bin/nm.single"
+at_fn_check_prepare_trace "divert.at:128"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list /usr/bin/nm.single
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "diversion of /usr/bin/nm to /usr/bin/nm.single by binutils-multiarch
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:128"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:129: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list /bin/sh /usr/share/man/man1/sh.1.gz"
+at_fn_check_prepare_trace "divert.at:129"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list /bin/sh /usr/share/man/man1/sh.1.gz
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "diversion of /usr/share/man/man1/sh.1.gz to /usr/share/man/man1/sh.distrib.1.gz by dash
+diversion of /bin/sh to /bin/sh.distrib by dash
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:129"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_16
+#AT_START_17
+at_fn_group_banner 17 'divert.at:134' \
+  "dpkg-divert query (listpackage + truename)" "     " 4
+at_xfail=no
+(
+  printf "%s\n" "17. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+
+  mkdir -p "dpkgdb"
+  cat >dpkgdb/diversions <<'_ATEOF'
+/bin/sh
+/bin/sh.distrib
+dash
+/bin/true
+/bin/true.coreutils
+:
+_ATEOF
+
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:145: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --listpackage /bin/sh"
+at_fn_check_prepare_trace "divert.at:145"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --listpackage /bin/sh
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "dash
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:145"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:147: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --listpackage /bin/true"
+at_fn_check_prepare_trace "divert.at:147"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --listpackage /bin/true
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "LOCAL
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:147"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:149: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --listpackage /bin/false"
+at_fn_check_prepare_trace "divert.at:149"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --listpackage /bin/false
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:149"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:151: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --truename /bin/sh"
+at_fn_check_prepare_trace "divert.at:151"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --truename /bin/sh
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "/bin/sh.distrib
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:151"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:153: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --truename /bin/sh.distrib"
+at_fn_check_prepare_trace "divert.at:153"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --truename /bin/sh.distrib
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "/bin/sh.distrib
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:153"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:155: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --truename /bin/something"
+at_fn_check_prepare_trace "divert.at:155"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --truename /bin/something
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo >>"$at_stdout"; printf "%s\n" "/bin/something
+" | \
+  $at_diff - "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:155"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_17
+#AT_START_18
+at_fn_group_banner 18 'divert.at:160' \
+  "dpkg-divert add (local rename)" "                 " 4
+at_xfail=no
+(
+  printf "%s\n" "18. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+
+  mkdir -p "dpkginst/$(dirname '/testdir/foo')"
+  : >dpkginst//testdir/foo
+
+
+  mkdir -p "dpkgdb"
+  : >dpkgdb/diversions
+
+cat >ref-diversions <<'_ATEOF'
+/testdir/foo
+/testdir/foo.distrib
+:
+_ATEOF
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:170: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --rename --add /testdir/foo"
+at_fn_check_prepare_trace "divert.at:170"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --rename --add /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo stdout:; tee stdout <"$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:170"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:171: \$GREP -q \"Adding.*local.*diversion.* /testdir/foo.* /testdir/foo.distrib\" stdout"
+at_fn_check_prepare_dynamic "$GREP -q \"Adding.*local.*diversion.* /testdir/foo.* /testdir/foo.distrib\" stdout" "divert.at:171"
+( $at_check_trace; $GREP -q "Adding.*local.*diversion.* /testdir/foo.* /testdir/foo.distrib" stdout
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:171"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/divert.at:172: test -e \"dpkginst//testdir/foo\""
+at_fn_check_prepare_trace "divert.at:172"
+( $at_check_trace; test -e "dpkginst//testdir/foo"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 1 $at_status "$at_srcdir/divert.at:172"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/divert.at:173: test -e \"dpkginst//testdir/foo.distrib\""
+at_fn_check_prepare_trace "divert.at:173"
+( $at_check_trace; test -e "dpkginst//testdir/foo.distrib"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:173"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:174: diff -u ref-diversions dpkgdb/diversions"
+at_fn_check_prepare_trace "divert.at:174"
+( $at_check_trace; diff -u ref-diversions dpkgdb/diversions
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:174"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_18
+#AT_START_19
+at_fn_group_banner 19 'divert.at:178' \
+  "dpkg-divert add (local no-rename)" "              " 4
+at_xfail=no
+(
+  printf "%s\n" "19. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+
+  mkdir -p "dpkginst/$(dirname '/testdir/foo')"
+  : >dpkginst//testdir/foo
+
+
+  mkdir -p "dpkgdb"
+  : >dpkgdb/diversions
+
+cat >ref-diversions <<'_ATEOF'
+/testdir/foo
+/testdir/foo.distrib
+:
+_ATEOF
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:188: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --no-rename --add /testdir/foo"
+at_fn_check_prepare_trace "divert.at:188"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --no-rename --add /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo stdout:; tee stdout <"$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:188"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:189: \$GREP -q \"Adding.*local.*diversion.* /testdir/foo.* /testdir/foo.distrib\" stdout"
+at_fn_check_prepare_dynamic "$GREP -q \"Adding.*local.*diversion.* /testdir/foo.* /testdir/foo.distrib\" stdout" "divert.at:189"
+( $at_check_trace; $GREP -q "Adding.*local.*diversion.* /testdir/foo.* /testdir/foo.distrib" stdout
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:189"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/divert.at:190: test -e \"dpkginst//testdir/foo\""
+at_fn_check_prepare_trace "divert.at:190"
+( $at_check_trace; test -e "dpkginst//testdir/foo"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:190"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/divert.at:191: test -e \"dpkginst//testdir/foo.distrib\""
+at_fn_check_prepare_trace "divert.at:191"
+( $at_check_trace; test -e "dpkginst//testdir/foo.distrib"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 1 $at_status "$at_srcdir/divert.at:191"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:192: diff -u ref-diversions dpkgdb/diversions"
+at_fn_check_prepare_trace "divert.at:192"
+( $at_check_trace; diff -u ref-diversions dpkgdb/diversions
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:192"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_19
+#AT_START_20
+at_fn_group_banner 20 'divert.at:196' \
+  "dpkg-divert add (rename quiet)" "                 " 4
+at_xfail=no
+(
+  printf "%s\n" "20. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+
+  mkdir -p "dpkginst/$(dirname '/testdir/foo')"
+  : >dpkginst//testdir/foo
+
+
+  mkdir -p "dpkgdb"
+  : >dpkgdb/diversions
+
+cat >ref-diversions <<'_ATEOF'
+/testdir/foo
+/testdir/foo.distrib
+:
+_ATEOF
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:206: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --rename --add /testdir/foo"
+at_fn_check_prepare_trace "divert.at:206"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --rename --add /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:206"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/divert.at:207: test -e \"dpkginst//testdir/foo\""
+at_fn_check_prepare_trace "divert.at:207"
+( $at_check_trace; test -e "dpkginst//testdir/foo"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 1 $at_status "$at_srcdir/divert.at:207"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/divert.at:208: test -e \"dpkginst//testdir/foo.distrib\""
+at_fn_check_prepare_trace "divert.at:208"
+( $at_check_trace; test -e "dpkginst//testdir/foo.distrib"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:208"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:209: diff -u ref-diversions dpkgdb/diversions"
+at_fn_check_prepare_trace "divert.at:209"
+( $at_check_trace; diff -u ref-diversions dpkgdb/diversions
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:209"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_20
+#AT_START_21
+at_fn_group_banner 21 'divert.at:213' \
+  "dpkg-divert add (test rename quiet)" "            " 4
+at_xfail=no
+(
+  printf "%s\n" "21. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+
+  mkdir -p "dpkginst/$(dirname '/testdir/foo')"
+  : >dpkginst//testdir/foo
+
+
+  mkdir -p "dpkgdb"
+  : >dpkgdb/diversions
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:219: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --rename --test /testdir/foo"
+at_fn_check_prepare_trace "divert.at:219"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --rename --test /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:219"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/divert.at:220: test -e \"dpkginst//testdir/foo\""
+at_fn_check_prepare_trace "divert.at:220"
+( $at_check_trace; test -e "dpkginst//testdir/foo"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:220"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/divert.at:221: test -e \"dpkginst//testdir/foo.distrib\""
+at_fn_check_prepare_trace "divert.at:221"
+( $at_check_trace; test -e "dpkginst//testdir/foo.distrib"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 1 $at_status "$at_srcdir/divert.at:221"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:222: cat dpkgdb/diversions"
+at_fn_check_prepare_trace "divert.at:222"
+( $at_check_trace; cat dpkgdb/diversions
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:222"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_21
+#AT_START_22
+at_fn_group_banner 22 'divert.at:226' \
+  "dpkg-divert add (rename missing quiet)" "         " 4
+at_xfail=no
+(
+  printf "%s\n" "22. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+
+  mkdir -p "dpkginst//testdir"
+
+
+  mkdir -p "dpkgdb"
+  : >dpkgdb/diversions
+
+cat >ref-diversions <<'_ATEOF'
+/testdir/foo
+/testdir/foo.distrib
+:
+_ATEOF
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:236: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --rename /testdir/foo"
+at_fn_check_prepare_trace "divert.at:236"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --rename /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:236"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/divert.at:237: test -e \"dpkginst//testdir/foo\""
+at_fn_check_prepare_trace "divert.at:237"
+( $at_check_trace; test -e "dpkginst//testdir/foo"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 1 $at_status "$at_srcdir/divert.at:237"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/divert.at:238: test -e \"dpkginst//testdir/foo.distrib\""
+at_fn_check_prepare_trace "divert.at:238"
+( $at_check_trace; test -e "dpkginst//testdir/foo.distrib"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 1 $at_status "$at_srcdir/divert.at:238"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:239: diff -u ref-diversions dpkgdb/diversions"
+at_fn_check_prepare_trace "divert.at:239"
+( $at_check_trace; diff -u ref-diversions dpkgdb/diversions
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:239"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_22
+#AT_START_23
+at_fn_group_banner 23 'divert.at:243' \
+  "dpkg-divert add (local rename quiet)" "           " 4
+at_xfail=no
+(
+  printf "%s\n" "23. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+
+  mkdir -p "dpkginst/$(dirname '/testdir/foo')"
+  : >dpkginst//testdir/foo
+
+
+  mkdir -p "dpkgdb"
+  : >dpkgdb/diversions
+
+cat >ref-diversions <<'_ATEOF'
+/testdir/foo
+/testdir/foo.distrib
+:
+_ATEOF
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:253: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --local --rename /testdir/foo"
+at_fn_check_prepare_trace "divert.at:253"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --local --rename /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:253"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/divert.at:254: test -e \"dpkginst//testdir/foo\""
+at_fn_check_prepare_trace "divert.at:254"
+( $at_check_trace; test -e "dpkginst//testdir/foo"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 1 $at_status "$at_srcdir/divert.at:254"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/divert.at:255: test -e \"dpkginst//testdir/foo.distrib\""
+at_fn_check_prepare_trace "divert.at:255"
+( $at_check_trace; test -e "dpkginst//testdir/foo.distrib"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:255"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:256: diff -u ref-diversions dpkgdb/diversions"
+at_fn_check_prepare_trace "divert.at:256"
+( $at_check_trace; diff -u ref-diversions dpkgdb/diversions
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:256"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_23
+#AT_START_24
+at_fn_group_banner 24 'divert.at:260' \
+  "dpkg-divert add (package rename quiet)" "         " 4
+at_xfail=no
+(
+  printf "%s\n" "24. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+
+  mkdir -p "dpkgdb"
+  : >dpkgdb/diversions
+
+cat >ref-diversions <<'_ATEOF'
+/testdir/foo
+/testdir/foo.distrib
+bash
+_ATEOF
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:269: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --rename --package bash /testdir/foo"
+at_fn_check_prepare_trace "divert.at:269"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --rename --package bash /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:269"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:270: diff -u ref-diversions dpkgdb/diversions"
+at_fn_check_prepare_trace "divert.at:270"
+( $at_check_trace; diff -u ref-diversions dpkgdb/diversions
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:270"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_24
+#AT_START_25
+at_fn_group_banner 25 'divert.at:274' \
+  "dpkg-divert add (rename self-link)" "             " 4
+at_xfail=no
+(
+  printf "%s\n" "25. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+
+  mkdir -p "dpkginst/$(dirname '/testdir/foo')"
+  : >dpkginst//testdir/foo
+
+
+  ln "dpkginst//testdir/foo" "dpkginst//testdir/foo.distrib"
+
+
+  mkdir -p "dpkgdb"
+  : >dpkgdb/diversions
+
+cat >ref-diversions <<'_ATEOF'
+/testdir/foo
+/testdir/foo.distrib
+:
+_ATEOF
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:285: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --rename /testdir/foo"
+at_fn_check_prepare_trace "divert.at:285"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --rename /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:285"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/divert.at:286: test -e \"dpkginst//testdir/foo\""
+at_fn_check_prepare_trace "divert.at:286"
+( $at_check_trace; test -e "dpkginst//testdir/foo"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 1 $at_status "$at_srcdir/divert.at:286"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/divert.at:287: test -e \"dpkginst//testdir/foo.distrib\""
+at_fn_check_prepare_trace "divert.at:287"
+( $at_check_trace; test -e "dpkginst//testdir/foo.distrib"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:287"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:288: diff -u ref-diversions dpkgdb/diversions"
+at_fn_check_prepare_trace "divert.at:288"
+( $at_check_trace; diff -u ref-diversions dpkgdb/diversions
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:288"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_25
+#AT_START_26
+at_fn_group_banner 26 'divert.at:292' \
+  "dpkg-divert add (rename other-file)" "            " 4
+at_xfail=no
+(
+  printf "%s\n" "26. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+
+  mkdir -p "dpkginst/$(dirname '/testdir/foo')"
+  : >dpkginst//testdir/foo
+
+
+  mkdir -p "dpkginst/$(dirname '/testdir/foo.distrib')"
+  : >dpkginst//testdir/foo.distrib
+
+
+  mkdir -p "dpkgdb"
+  : >dpkgdb/diversions
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:299: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --rename /testdir/foo"
+at_fn_check_prepare_trace "divert.at:299"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --rename /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:299"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:300: \$GREP -q 'error: rename involves overwriting' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'error: rename involves overwriting' stderr" "divert.at:300"
+( $at_check_trace; $GREP -q 'error: rename involves overwriting' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:300"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:301: cat dpkgdb/diversions"
+at_fn_check_prepare_trace "divert.at:301"
+( $at_check_trace; cat dpkgdb/diversions
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:301"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_26
+#AT_START_27
+at_fn_group_banner 27 'divert.at:305' \
+  "dpkg-divert add (rename missing dir)" "           " 4
+at_xfail=no
+(
+  printf "%s\n" "27. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+
+  mkdir -p "dpkgdb"
+  : >dpkgdb/diversions
+
+cat >ref-diversions <<'_ATEOF'
+/testdir/zoo/foo
+/testdir/zoo/foo.distrib
+:
+_ATEOF
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:314: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --rename --add /testdir/zoo/foo"
+at_fn_check_prepare_trace "divert.at:314"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --rename --add /testdir/zoo/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:314"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:315: diff -u ref-diversions dpkgdb/diversions"
+at_fn_check_prepare_trace "divert.at:315"
+( $at_check_trace; diff -u ref-diversions dpkgdb/diversions
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:315"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_27
+#AT_START_28
+at_fn_group_banner 28 'divert.at:319' \
+  "dpkg-divert add (rename read-only dir)" "         " 4
+at_xfail=no
+(
+  printf "%s\n" "28. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+printf "%s\n" "divert.at:322" >"$at_check_line_file"
+(test -n "$FAKEROOTKEY" || test "$(id -u)" = 0) \
+  && at_fn_check_skip 77 "$at_srcdir/divert.at:322"
+
+
+  mkdir -p "dpkginst//testdir/rodir"
+
+
+  mkdir -p "dpkginst/$(dirname '/testdir/rodir/foo')"
+  : >dpkginst//testdir/rodir/foo
+
+
+  mkdir -p "dpkginst/$(dirname '/testdir/bar')"
+  : >dpkginst//testdir/bar
+
+
+  chmod 500 "dpkginst//testdir/rodir"
+
+
+  mkdir -p "dpkgdb"
+  : >dpkgdb/diversions
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:330: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --rename --add /testdir/rodir/foo"
+at_fn_check_prepare_trace "divert.at:330"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --rename --add /testdir/rodir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:330"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:332: \$GREP -q 'error: .* Permission denied' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'error: .* Permission denied' stderr" "divert.at:332"
+( $at_check_trace; $GREP -q 'error: .* Permission denied' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:332"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:334: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --rename --divert /testdir/rodir/bar --add /testdir/bar"
+at_fn_check_prepare_trace "divert.at:334"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --rename --divert /testdir/rodir/bar --add /testdir/bar
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:334"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:336: \$GREP -q 'error: .* Permission denied' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'error: .* Permission denied' stderr" "divert.at:336"
+( $at_check_trace; $GREP -q 'error: .* Permission denied' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:336"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:338: cat dpkgdb/diversions"
+at_fn_check_prepare_trace "divert.at:338"
+( $at_check_trace; cat dpkgdb/diversions
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:338"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+  chmod 755 "dpkginst//testdir/rodir"
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_28
+#AT_START_29
+at_fn_group_banner 29 'divert.at:343' \
+  "dpkg-divert add (rename no-access dir)" "         " 4
+at_xfail=no
+(
+  printf "%s\n" "29. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+printf "%s\n" "divert.at:346" >"$at_check_line_file"
+(test -n "$FAKEROOTKEY" || test "$(id -u)" = 0) \
+  && at_fn_check_skip 77 "$at_srcdir/divert.at:346"
+
+
+  mkdir -p "dpkginst/$(dirname '/testdir/foo')"
+  : >dpkginst//testdir/foo
+
+
+  mkdir -p "dpkginst//testdir/nadir"
+
+
+  chmod 000 "dpkginst//testdir/nadir"
+
+
+  mkdir -p "dpkgdb"
+  : >dpkgdb/diversions
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:353: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --rename --add /testdir/nadir/foo"
+at_fn_check_prepare_trace "divert.at:353"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --rename --add /testdir/nadir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:353"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:354: \$GREP -q 'error: .* Permission denied' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'error: .* Permission denied' stderr" "divert.at:354"
+( $at_check_trace; $GREP -q 'error: .* Permission denied' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:354"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:356: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --rename --divert /testdir/nadir/foo --add /testdir/foo"
+at_fn_check_prepare_trace "divert.at:356"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --rename --divert /testdir/nadir/foo --add /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:356"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:358: \$GREP -q 'error: .* Permission denied' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'error: .* Permission denied' stderr" "divert.at:358"
+( $at_check_trace; $GREP -q 'error: .* Permission denied' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:358"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:360: cat dpkgdb/diversions"
+at_fn_check_prepare_trace "divert.at:360"
+( $at_check_trace; cat dpkgdb/diversions
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:360"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+# On FreeBSD «rm -rf» cannot traverse a directory with mode 000.
+rmdir dpkginst/testdir/nadir
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_29
+#AT_START_30
+at_fn_group_banner 30 'divert.at:367' \
+  "dpkg-divert add second diversion" "               " 4
+at_xfail=no
+(
+  printf "%s\n" "30. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+
+  mkdir -p "dpkginst//testdir"
+
+
+  mkdir -p "dpkgdb"
+  : >dpkgdb/diversions
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:373: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --rename --add /testdir/foo"
+at_fn_check_prepare_trace "divert.at:373"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --rename --add /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo stdout:; tee stdout <"$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:373"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:374: \$GREP -q 'Adding' stdout"
+at_fn_check_prepare_dynamic "$GREP -q 'Adding' stdout" "divert.at:374"
+( $at_check_trace; $GREP -q 'Adding' stdout
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:374"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:376: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --rename --add /testdir/foo"
+at_fn_check_prepare_trace "divert.at:376"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --rename --add /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo stdout:; tee stdout <"$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:376"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:377: \$GREP -q 'Leaving' stdout"
+at_fn_check_prepare_dynamic "$GREP -q 'Leaving' stdout" "divert.at:377"
+( $at_check_trace; $GREP -q 'Leaving' stdout
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:377"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:379: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --rename --add /testdir/foo"
+at_fn_check_prepare_trace "divert.at:379"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --rename --add /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo stdout:; tee stdout <"$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:379"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:380: \$GREP -q 'Leaving' stdout"
+at_fn_check_prepare_dynamic "$GREP -q 'Leaving' stdout" "divert.at:380"
+( $at_check_trace; $GREP -q 'Leaving' stdout
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:380"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:382: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --divert /testdir/foo.bar /testdir/foo"
+at_fn_check_prepare_trace "divert.at:382"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --divert /testdir/foo.bar /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:382"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:384: \$GREP -q 'clashes' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'clashes' stderr" "divert.at:384"
+( $at_check_trace; $GREP -q 'clashes' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:384"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:386: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --package foobar /testdir/foo"
+at_fn_check_prepare_trace "divert.at:386"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --package foobar /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:386"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:387: \$GREP -q 'clashes' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'clashes' stderr" "divert.at:387"
+( $at_check_trace; $GREP -q 'clashes' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:387"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:389: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --divert /testdir/foo.distrib /testdir/bar"
+at_fn_check_prepare_trace "divert.at:389"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --divert /testdir/foo.distrib /testdir/bar
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:389"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:391: \$GREP -q 'clashes' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'clashes' stderr" "divert.at:391"
+( $at_check_trace; $GREP -q 'clashes' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:391"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:393: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  /testdir/foo.distrib"
+at_fn_check_prepare_trace "divert.at:393"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  /testdir/foo.distrib
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:393"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:394: \$GREP -q 'clashes' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'clashes' stderr" "divert.at:394"
+( $at_check_trace; $GREP -q 'clashes' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:394"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:396: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --divert /testdir/foo /testdir/bar"
+at_fn_check_prepare_trace "divert.at:396"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --divert /testdir/foo /testdir/bar
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:396"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:397: \$GREP -q 'clashes' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'clashes' stderr" "divert.at:397"
+( $at_check_trace; $GREP -q 'clashes' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:397"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_30
+#AT_START_31
+at_fn_group_banner 31 'divert.at:401' \
+  "dpkg-divert add third diversion" "                " 4
+at_xfail=no
+(
+  printf "%s\n" "31. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+
+  mkdir -p "dpkginst//testdir"
+
+
+  mkdir -p "dpkgdb"
+  : >dpkgdb/diversions
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:407: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --rename --add /testdir/foo"
+at_fn_check_prepare_trace "divert.at:407"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --rename --add /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo stdout:; tee stdout <"$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:407"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:408: \$GREP -q 'Adding' stdout"
+at_fn_check_prepare_dynamic "$GREP -q 'Adding' stdout" "divert.at:408"
+( $at_check_trace; $GREP -q 'Adding' stdout
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:408"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:409: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --rename --add /testdir/bar"
+at_fn_check_prepare_trace "divert.at:409"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --rename --add /testdir/bar
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo stdout:; tee stdout <"$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:409"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:410: \$GREP -q 'Adding' stdout"
+at_fn_check_prepare_dynamic "$GREP -q 'Adding' stdout" "divert.at:410"
+( $at_check_trace; $GREP -q 'Adding' stdout
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:410"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:412: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --rename --add /testdir/foo"
+at_fn_check_prepare_trace "divert.at:412"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --rename --add /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo stdout:; tee stdout <"$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:412"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:413: \$GREP -q 'Leaving' stdout"
+at_fn_check_prepare_dynamic "$GREP -q 'Leaving' stdout" "divert.at:413"
+( $at_check_trace; $GREP -q 'Leaving' stdout
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:413"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:414: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --rename --package foobar --add /testdir/bar"
+at_fn_check_prepare_trace "divert.at:414"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --rename --package foobar --add /testdir/bar
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:414"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:416: \$GREP -q 'clashes' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'clashes' stderr" "divert.at:416"
+( $at_check_trace; $GREP -q 'clashes' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:416"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_31
+#AT_START_32
+at_fn_group_banner 32 'divert.at:420' \
+  "dpkg-divert add (file owned by --package)" "      " 4
+at_xfail=no
+(
+  printf "%s\n" "32. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+
+  mkdir -p "dpkginst/$(dirname '/testdir/foo')"
+  : >dpkginst//testdir/foo
+
+# Only installed packages have their files list considered.
+
+  mkdir -p "dpkgdb"
+  cat >dpkgdb/status <<'_ATEOF'
+Package: coreutils
+Status: install ok installed
+Version: 0
+Architecture: i386
+Maintainer: dummy
+Description: dummy
+_ATEOF
+
+
+
+  mkdir -p "dpkgdb/info"
+  cat >dpkgdb/info/coreutils.list <<'_ATEOF'
+/testdir/foo
+_ATEOF
+
+
+
+  mkdir -p "dpkgdb"
+  : >dpkgdb/diversions
+
+cat >ref-diversions <<'_ATEOF'
+/testdir/foo
+/testdir/foo.distrib
+coreutils
+_ATEOF
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:440: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --rename --package coreutils --add /testdir/foo"
+at_fn_check_prepare_trace "divert.at:440"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --rename --package coreutils --add /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:440"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/divert.at:441: test -e \"dpkginst//testdir/foo\""
+at_fn_check_prepare_trace "divert.at:441"
+( $at_check_trace; test -e "dpkginst//testdir/foo"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:441"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/divert.at:442: test -e \"dpkginst//testdir/foo.distrib\""
+at_fn_check_prepare_trace "divert.at:442"
+( $at_check_trace; test -e "dpkginst//testdir/foo.distrib"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 1 $at_status "$at_srcdir/divert.at:442"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:443: diff -u ref-diversions dpkgdb/diversions"
+at_fn_check_prepare_trace "divert.at:443"
+( $at_check_trace; diff -u ref-diversions dpkgdb/diversions
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:443"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_32
+#AT_START_33
+at_fn_group_banner 33 'divert.at:447' \
+  "dpkg-divert remove (missing)" "                   " 4
+at_xfail=no
+(
+  printf "%s\n" "33. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+
+  mkdir -p "dpkgdb"
+  : >dpkgdb/diversions
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:452: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --no-rename --remove /bin/sh"
+at_fn_check_prepare_trace "divert.at:452"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --no-rename --remove /bin/sh
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo stdout:; tee stdout <"$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:452"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:453: \$GREP -q 'No diversion' stdout"
+at_fn_check_prepare_dynamic "$GREP -q 'No diversion' stdout" "divert.at:453"
+( $at_check_trace; $GREP -q 'No diversion' stdout
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:453"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:455: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --no-rename --remove /bin/sh"
+at_fn_check_prepare_trace "divert.at:455"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --no-rename --remove /bin/sh
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:455"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_33
+#AT_START_34
+at_fn_group_banner 34 'divert.at:459' \
+  "dpkg-divert remove (divert-to)" "                 " 4
+at_xfail=no
+(
+  printf "%s\n" "34. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+
+  mkdir -p "dpkgdb"
+  : >dpkgdb/diversions
+
+cat >ref-diversions <<'_ATEOF'
+/testdir/bar
+/testdir/bar.distrib
+:
+/testdir/baz
+/testdir/baz.distrib
+:
+_ATEOF
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:471: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --no-rename --add /testdir/foo"
+at_fn_check_prepare_trace "divert.at:471"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --no-rename --add /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:471"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:472: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --no-rename --add /testdir/bar"
+at_fn_check_prepare_trace "divert.at:472"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --no-rename --add /testdir/bar
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:472"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:473: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --no-rename --add /testdir/baz"
+at_fn_check_prepare_trace "divert.at:473"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --no-rename --add /testdir/baz
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:473"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:475: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --divert /testdir/foo.my --remove /testdir/foo"
+at_fn_check_prepare_trace "divert.at:475"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --divert /testdir/foo.my --remove /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:475"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:477: \$GREP -q 'mismatch on divert-to' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'mismatch on divert-to' stderr" "divert.at:477"
+( $at_check_trace; $GREP -q 'mismatch on divert-to' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:477"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:479: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --package baz --remove /testdir/foo"
+at_fn_check_prepare_trace "divert.at:479"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --package baz --remove /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:479"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:480: \$GREP -q 'mismatch on package' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'mismatch on package' stderr" "divert.at:480"
+( $at_check_trace; $GREP -q 'mismatch on package' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:480"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:482: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --package baz --divert /testdir/foo.my --remove /testdir/foo"
+at_fn_check_prepare_trace "divert.at:482"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --package baz --divert /testdir/foo.my --remove /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:482"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:484: \$EGREP -q 'mismatch on (package|divert-to)' stderr"
+at_fn_check_prepare_notrace 'a shell pipeline' "divert.at:484"
+( $at_check_trace; $EGREP -q 'mismatch on (package|divert-to)' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:484"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:486: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --rename --divert /testdir/foo.distrib --remove /testdir/foo"
+at_fn_check_prepare_trace "divert.at:486"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --rename --divert /testdir/foo.distrib --remove /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo stdout:; tee stdout <"$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:486"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:488: \$EGREP -q 'Removing .*/testdir/foo' stdout"
+at_fn_check_prepare_dynamic "$EGREP -q 'Removing .*/testdir/foo' stdout" "divert.at:488"
+( $at_check_trace; $EGREP -q 'Removing .*/testdir/foo' stdout
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:488"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:490: diff -u ref-diversions dpkgdb/diversions"
+at_fn_check_prepare_trace "divert.at:490"
+( $at_check_trace; diff -u ref-diversions dpkgdb/diversions
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:490"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_34
+#AT_START_35
+at_fn_group_banner 35 'divert.at:494' \
+  "dpkg-divert remove (plain)" "                     " 4
+at_xfail=no
+(
+  printf "%s\n" "35. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+
+  mkdir -p "dpkgdb"
+  : >dpkgdb/diversions
+
+cat >ref-diversions <<'_ATEOF'
+/testdir/foo
+/testdir/foo.distrib
+:
+/testdir/baz
+/testdir/baz.distrib
+:
+_ATEOF
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:506: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --no-rename --add /testdir/foo"
+at_fn_check_prepare_trace "divert.at:506"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --no-rename --add /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:506"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:507: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --no-rename --add /testdir/bar"
+at_fn_check_prepare_trace "divert.at:507"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --no-rename --add /testdir/bar
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:507"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:508: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --no-rename --add /testdir/baz"
+at_fn_check_prepare_trace "divert.at:508"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --no-rename --add /testdir/baz
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:508"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:510: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --no-rename --remove /testdir/bar"
+at_fn_check_prepare_trace "divert.at:510"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --no-rename --remove /testdir/bar
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo stdout:; tee stdout <"$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:510"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:511: \$EGREP -q 'Removing .* /testdir/bar' stdout"
+at_fn_check_prepare_dynamic "$EGREP -q 'Removing .* /testdir/bar' stdout" "divert.at:511"
+( $at_check_trace; $EGREP -q 'Removing .* /testdir/bar' stdout
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:511"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:513: diff -u ref-diversions dpkgdb/diversions"
+at_fn_check_prepare_trace "divert.at:513"
+( $at_check_trace; diff -u ref-diversions dpkgdb/diversions
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:513"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_35
+#AT_START_36
+at_fn_group_banner 36 'divert.at:517' \
+  "dpkg-divert remove (by-package)" "                " 4
+at_xfail=no
+(
+  printf "%s\n" "36. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+
+  mkdir -p "dpkgdb"
+  : >dpkgdb/diversions
+
+cat >ref-diversions <<'_ATEOF'
+/testdir/bar
+/testdir/bar.distrib
+:
+/testdir/foo
+/testdir/foo.distrib
+:
+_ATEOF
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:529: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --no-rename /testdir/foo"
+at_fn_check_prepare_trace "divert.at:529"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --no-rename /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:529"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:530: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --no-rename /testdir/bar"
+at_fn_check_prepare_trace "divert.at:530"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --no-rename /testdir/bar
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:530"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:531: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --no-rename --package bash /testdir/baz"
+at_fn_check_prepare_trace "divert.at:531"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --no-rename --package bash /testdir/baz
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:531"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:533: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --no-rename --quiet --package bash --remove /testdir/baz"
+at_fn_check_prepare_trace "divert.at:533"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --no-rename --quiet --package bash --remove /testdir/baz
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:533"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:535: diff -u ref-diversions dpkgdb/diversions"
+at_fn_check_prepare_trace "divert.at:535"
+( $at_check_trace; diff -u ref-diversions dpkgdb/diversions
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:535"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_36
+#AT_START_37
+at_fn_group_banner 37 'divert.at:539' \
+  "dpkg-divert remove (test)" "                      " 4
+at_xfail=no
+(
+  printf "%s\n" "37. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+
+  mkdir -p "dpkginst/$(dirname '/testdir/foo')"
+  : >dpkginst//testdir/foo
+
+
+  mkdir -p "dpkgdb"
+  : >dpkgdb/diversions
+
+cat >ref-diversions <<'_ATEOF'
+/testdir/foo
+/testdir/foo.distrib
+:
+_ATEOF
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:549: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --rename /testdir/foo"
+at_fn_check_prepare_trace "divert.at:549"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --rename /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:549"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:551: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --test --rename --remove /testdir/foo"
+at_fn_check_prepare_trace "divert.at:551"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --test --rename --remove /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+echo stdout:; tee stdout <"$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:551"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:552: \$GREP -q 'Removing .*/testdir/foo' stdout"
+at_fn_check_prepare_dynamic "$GREP -q 'Removing .*/testdir/foo' stdout" "divert.at:552"
+( $at_check_trace; $GREP -q 'Removing .*/testdir/foo' stdout
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:552"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/divert.at:553: test -e \"dpkginst//testdir/foo\""
+at_fn_check_prepare_trace "divert.at:553"
+( $at_check_trace; test -e "dpkginst//testdir/foo"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 1 $at_status "$at_srcdir/divert.at:553"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/divert.at:554: test -e \"dpkginst//testdir/foo.distrib\""
+at_fn_check_prepare_trace "divert.at:554"
+( $at_check_trace; test -e "dpkginst//testdir/foo.distrib"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:554"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:555: diff -u ref-diversions dpkgdb/diversions"
+at_fn_check_prepare_trace "divert.at:555"
+( $at_check_trace; diff -u ref-diversions dpkgdb/diversions
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:555"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:557: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --rename --remove /testdir/foo"
+at_fn_check_prepare_trace "divert.at:557"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --quiet --rename --remove /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:557"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/divert.at:558: test -e \"dpkginst//testdir/foo\""
+at_fn_check_prepare_trace "divert.at:558"
+( $at_check_trace; test -e "dpkginst//testdir/foo"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:558"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/divert.at:559: test -e \"dpkginst//testdir/foo.distrib\""
+at_fn_check_prepare_trace "divert.at:559"
+( $at_check_trace; test -e "dpkginst//testdir/foo.distrib"
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 1 $at_status "$at_srcdir/divert.at:559"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:560: cat dpkgdb/diversions"
+at_fn_check_prepare_trace "divert.at:560"
+( $at_check_trace; cat dpkgdb/diversions
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:560"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_37
+#AT_START_38
+at_fn_group_banner 38 'divert.at:564' \
+  "dpkg-divert db (no-access)" "                     " 4
+at_xfail=no
+(
+  printf "%s\n" "38. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+printf "%s\n" "divert.at:567" >"$at_check_line_file"
+(test -n "$FAKEROOTKEY" || test "$(id -u)" = 0) \
+  && at_fn_check_skip 77 "$at_srcdir/divert.at:567"
+
+# An inexistent diversions db file should not be considered a failure,
+# but a failure to open it should be.
+
+  mkdir -p "dpkgdb"
+  : >dpkgdb/diversions
+
+
+  chmod 000 "dpkgdb/diversions"
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:574: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list"
+at_fn_check_prepare_trace "divert.at:574"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:574"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:575: \$EGREP -q '(cannot|failed).*open' stderr"
+at_fn_check_prepare_notrace 'a shell pipeline' "divert.at:575"
+( $at_check_trace; $EGREP -q '(cannot|failed).*open' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:575"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+  chmod 644 "dpkgdb/diversions"
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_38
+#AT_START_39
+at_fn_group_banner 39 'divert.at:580' \
+  "dpkg-divert db (truncated)" "                     " 4
+at_xfail=no
+(
+  printf "%s\n" "39. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+
+  mkdir -p "dpkgdb"
+  cat >dpkgdb/diversions <<'_ATEOF'
+/bin/sh
+_ATEOF
+
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:586: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list"
+at_fn_check_prepare_trace "divert.at:586"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:586"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:587: \$EGREP -q '(corrupt|unexpected end of file)' stderr"
+at_fn_check_prepare_notrace 'a shell pipeline' "divert.at:587"
+( $at_check_trace; $EGREP -q '(corrupt|unexpected end of file)' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:587"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+  mkdir -p "dpkgdb"
+  cat >dpkgdb/diversions <<'_ATEOF'
+/bin/sh
+bash
+_ATEOF
+
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:593: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list"
+at_fn_check_prepare_trace "divert.at:593"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --list
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:593"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:594: \$EGREP -q '(corrupt|unexpected end of file)' stderr"
+at_fn_check_prepare_notrace 'a shell pipeline' "divert.at:594"
+( $at_check_trace; $EGREP -q '(corrupt|unexpected end of file)' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:594"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_39
+#AT_START_40
+at_fn_group_banner 40 'divert.at:598' \
+  "dpkg-divert db (read-only dir)" "                 " 4
+at_xfail=no
+(
+  printf "%s\n" "40. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+printf "%s\n" "divert.at:601" >"$at_check_line_file"
+(test -n "$FAKEROOTKEY" || test "$(id -u)" = 0) \
+  && at_fn_check_skip 77 "$at_srcdir/divert.at:601"
+
+
+  mkdir -p "dpkgdb"
+  : >dpkgdb/diversions
+
+
+  chmod 500 "dpkgdb/"
+
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:606: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --rename --add /testdir/foo"
+at_fn_check_prepare_trace "divert.at:606"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --rename --add /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+echo stdout:; tee stdout <"$at_stdout"
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:606"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:607: \$GREP -q 'Adding' stdout"
+at_fn_check_prepare_dynamic "$GREP -q 'Adding' stdout" "divert.at:607"
+( $at_check_trace; $GREP -q 'Adding' stdout
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:607"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:608: \$GREP -q 'create.*new' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'create.*new' stderr" "divert.at:608"
+( $at_check_trace; $GREP -q 'create.*new' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:608"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+
+  chmod 755 "dpkgdb/"
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_40
+#AT_START_41
+at_fn_group_banner 41 'divert.at:613' \
+  "dpkg-divert db (disk full)" "                     " 4
+at_xfail=no
+(
+  printf "%s\n" "41. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+printf "%s\n" "divert.at:616" >"$at_check_line_file"
+(test -n "$FAKEROOTKEY" || test "$(id -u)" = 0) \
+  && at_fn_check_skip 77 "$at_srcdir/divert.at:616"
+printf "%s\n" "divert.at:617" >"$at_check_line_file"
+(! test -c /dev/full) \
+  && at_fn_check_skip 77 "$at_srcdir/divert.at:617"
+
+
+  mkdir -p "dpkgdb"
+  : >dpkgdb/diversions
+
+ln -s /dev/full dpkgdb/diversions-new
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:622: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --rename --add /testdir/foo"
+at_fn_check_prepare_trace "divert.at:622"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --rename --add /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+echo stdout:; tee stdout <"$at_stdout"
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:622"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:623: \$GREP -q 'Adding' stdout"
+at_fn_check_prepare_dynamic "$GREP -q 'Adding' stdout" "divert.at:623"
+( $at_check_trace; $GREP -q 'Adding' stdout
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:623"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:624: \$EGREP -q '(write|flush|close).*new' stderr"
+at_fn_check_prepare_notrace 'a shell pipeline' "divert.at:624"
+( $at_check_trace; $EGREP -q '(write|flush|close).*new' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:624"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_41
+#AT_START_42
+at_fn_group_banner 42 'divert.at:628' \
+  "dpkg-divert db (pathname is dir)" "               " 4
+at_xfail=no
+(
+  printf "%s\n" "42. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+
+  mkdir -p "dpkgdb"
+  : >dpkgdb/diversions
+
+rm -f dpkgdb/diversions-new
+mkdir dpkgdb/diversions-old
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:635: dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --rename --add /testdir/foo"
+at_fn_check_prepare_trace "divert.at:635"
+( $at_check_trace; dpkg-divert   --admindir=dpkgdb    --instdir=dpkginst  --rename --add /testdir/foo
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo stderr:; tee stderr <"$at_stderr"
+echo stdout:; tee stdout <"$at_stdout"
+at_fn_check_status 2 $at_status "$at_srcdir/divert.at:635"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:636: \$GREP -q 'Adding' stdout"
+at_fn_check_prepare_dynamic "$GREP -q 'Adding' stdout" "divert.at:636"
+( $at_check_trace; $GREP -q 'Adding' stdout
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:636"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+{ set +x
+printf "%s\n" "$at_srcdir/divert.at:637: \$GREP -q 'remov.*old' stderr"
+at_fn_check_prepare_dynamic "$GREP -q 'remov.*old' stderr" "divert.at:637"
+( $at_check_trace; $GREP -q 'remov.*old' stderr
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+at_fn_diff_devnull "$at_stderr" || at_failed=:
+at_fn_diff_devnull "$at_stdout" || at_failed=:
+at_fn_check_status 0 $at_status "$at_srcdir/divert.at:637"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_42
+#AT_START_43
+at_fn_group_banner 43 'chdir.at:5' \
+  "dpkg chdir opts" "                                " 5
+at_xfail=no
+(
+  printf "%s\n" "43. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=$DEFAULT_ROOTDIR admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg --version --instdir=/instdir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg --version --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt --root=/rootdir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg --version --instdir=/instdir_opt --root=/rootdir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg --version --instdir=/instdir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg --version --instdir=/instdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg --version --instdir=/instdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt --admindir=/admindir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt --admindir=/admindir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt --instdir=/instdir_opt --root=/rootdir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt --instdir=/instdir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_43
+#AT_START_44
+at_fn_group_banner 44 'chdir.at:5' \
+  "dpkg chdir env" "                                 " 5
+at_xfail=no
+(
+  printf "%s\n" "44. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg --version"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg --version
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=$DEFAULT_ROOTDIR admindir=/admindir_env
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg --version"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg --version
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_env admindir=/rootdir_env$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg --version"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg --version
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_env admindir=/admindir_env
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_44
+#AT_START_45
+at_fn_group_banner 45 'chdir.at:5' \
+  "dpkg chdir env+opt admindir" "                    " 5
+at_xfail=no
+(
+  printf "%s\n" "45. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=$DEFAULT_ROOTDIR admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg --version --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg --version --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_env
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg --version --instdir=/instdir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg --version --instdir=/instdir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg --version --instdir=/instdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg --version --instdir=/instdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt --admindir=/admindir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt --admindir=/admindir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt --instdir=/instdir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt --instdir=/instdir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_45
+#AT_START_46
+at_fn_group_banner 46 'chdir.at:5' \
+  "dpkg chdir env+opt root" "                        " 5
+at_xfail=no
+(
+  printf "%s\n" "46. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_env admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg --version --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg --version --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/rootdir_env$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg --version --instdir=/instdir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg --version --instdir=/instdir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg --version --instdir=/instdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg --version --instdir=/instdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt --admindir=/admindir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt --admindir=/admindir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt --instdir=/instdir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt --instdir=/instdir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_46
+#AT_START_47
+at_fn_group_banner 47 'chdir.at:5' \
+  "dpkg chdir env+opt root+admindir" "               " 5
+at_xfail=no
+(
+  printf "%s\n" "47. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_env admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg --version --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg --version --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_env
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg --version --instdir=/instdir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg --version --instdir=/instdir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg --version --instdir=/instdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg --version --instdir=/instdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt --admindir=/admindir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg --version --root=/rootdir_opt --admindir=/admindir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt --instdir=/instdir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg --version --admindir=/admindir_opt --instdir=/instdir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_47
+#AT_START_48
+at_fn_group_banner 48 'chdir.at:5' \
+  "dpkg-divert chdir opts" "                         " 5
+at_xfail=no
+(
+  printf "%s\n" "48. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=$DEFAULT_ROOTDIR admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg-divert --version --instdir=/instdir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-divert --version --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt --root=/rootdir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg-divert --version --instdir=/instdir_opt --root=/rootdir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-divert --version --instdir=/instdir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg-divert --version --instdir=/instdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-divert --version --instdir=/instdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt --admindir=/admindir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt --admindir=/admindir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt --instdir=/instdir_opt --root=/rootdir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt --instdir=/instdir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_48
+#AT_START_49
+at_fn_group_banner 49 'chdir.at:5' \
+  "dpkg-divert chdir env" "                          " 5
+at_xfail=no
+(
+  printf "%s\n" "49. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-divert --version
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=$DEFAULT_ROOTDIR admindir=/admindir_env
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-divert --version
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_env admindir=/rootdir_env$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-divert --version
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_env admindir=/admindir_env
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_49
+#AT_START_50
+at_fn_group_banner 50 'chdir.at:5' \
+  "dpkg-divert chdir env+opt admindir" "             " 5
+at_xfail=no
+(
+  printf "%s\n" "50. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=$DEFAULT_ROOTDIR admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_env
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --instdir=/instdir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --instdir=/instdir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --instdir=/instdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --instdir=/instdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt --admindir=/admindir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt --admindir=/admindir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt --instdir=/instdir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt --instdir=/instdir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_50
+#AT_START_51
+at_fn_group_banner 51 'chdir.at:5' \
+  "dpkg-divert chdir env+opt root" "                 " 5
+at_xfail=no
+(
+  printf "%s\n" "51. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_env admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/rootdir_env$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --instdir=/instdir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --instdir=/instdir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --instdir=/instdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --instdir=/instdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt --admindir=/admindir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt --admindir=/admindir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt --instdir=/instdir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt --instdir=/instdir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_51
+#AT_START_52
+at_fn_group_banner 52 'chdir.at:5' \
+  "dpkg-divert chdir env+opt root+admindir" "        " 5
+at_xfail=no
+(
+  printf "%s\n" "52. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_env admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_env
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --instdir=/instdir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --instdir=/instdir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --instdir=/instdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --instdir=/instdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt --admindir=/admindir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --root=/rootdir_opt --admindir=/admindir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt --instdir=/instdir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-divert --version --admindir=/admindir_opt --instdir=/instdir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_52
+#AT_START_53
+at_fn_group_banner 53 'chdir.at:5' \
+  "dpkg-statoverride chdir opts" "                   " 5
+at_xfail=no
+(
+  printf "%s\n" "53. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=$DEFAULT_ROOTDIR admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg-statoverride --version --instdir=/instdir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-statoverride --version --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt --root=/rootdir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg-statoverride --version --instdir=/instdir_opt --root=/rootdir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-statoverride --version --instdir=/instdir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg-statoverride --version --instdir=/instdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-statoverride --version --instdir=/instdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt --admindir=/admindir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt --admindir=/admindir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt --instdir=/instdir_opt --root=/rootdir_opt"
+at_fn_check_prepare_trace "chdir.at:5"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt --instdir=/instdir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_53
+#AT_START_54
+at_fn_group_banner 54 'chdir.at:5' \
+  "dpkg-statoverride chdir env" "                    " 5
+at_xfail=no
+(
+  printf "%s\n" "54. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=$DEFAULT_ROOTDIR admindir=/admindir_env
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_env admindir=/rootdir_env$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_env admindir=/admindir_env
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_54
+#AT_START_55
+at_fn_group_banner 55 'chdir.at:5' \
+  "dpkg-statoverride chdir env+opt admindir" "       " 5
+at_xfail=no
+(
+  printf "%s\n" "55. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=$DEFAULT_ROOTDIR admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_env
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --instdir=/instdir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --instdir=/instdir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --instdir=/instdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --instdir=/instdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt --admindir=/admindir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt --admindir=/admindir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt --instdir=/instdir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt --instdir=/instdir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_55
+#AT_START_56
+at_fn_group_banner 56 'chdir.at:5' \
+  "dpkg-statoverride chdir env+opt root" "           " 5
+at_xfail=no
+(
+  printf "%s\n" "56. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_env admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/rootdir_env$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --instdir=/instdir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --instdir=/instdir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --instdir=/instdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --instdir=/instdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt --admindir=/admindir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt --admindir=/admindir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt --instdir=/instdir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt --instdir=/instdir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_56
+#AT_START_57
+at_fn_group_banner 57 'chdir.at:5' \
+  "dpkg-statoverride chdir env+opt root+admindir" "  " 5
+at_xfail=no
+(
+  printf "%s\n" "57. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_env admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_env
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --instdir=/instdir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --instdir=/instdir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --instdir=/instdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --instdir=/instdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt --admindir=/admindir_opt --instdir=/instdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --root=/rootdir_opt --admindir=/admindir_opt --instdir=/instdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/instdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:5: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt --instdir=/instdir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:5"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-statoverride --version --admindir=/admindir_opt --instdir=/instdir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:5"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_57
+#AT_START_58
+at_fn_group_banner 58 'chdir.at:329' \
+  "dpkg-split chdir opts" "                          " 5
+at_xfail=no
+(
+  printf "%s\n" "58. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_DEBUG=1 dpkg-split --version --root=/rootdir_opt"
+at_fn_check_prepare_trace "chdir.at:329"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-split --version --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_DEBUG=1 dpkg-split --version --admindir=/admindir_opt"
+at_fn_check_prepare_trace "chdir.at:329"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-split --version --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=$DEFAULT_ROOTDIR admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_DEBUG=1 dpkg-split --version --root=/rootdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_trace "chdir.at:329"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-split --version --root=/rootdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_DEBUG=1 dpkg-split --version --admindir=/admindir_opt --root=/rootdir_opt"
+at_fn_check_prepare_trace "chdir.at:329"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-split --version --admindir=/admindir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_58
+#AT_START_59
+at_fn_group_banner 59 'chdir.at:329' \
+  "dpkg-split chdir env" "                           " 5
+at_xfail=no
+(
+  printf "%s\n" "59. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-split --version"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-split --version
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=$DEFAULT_ROOTDIR admindir=/admindir_env
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-split --version"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-split --version
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_env admindir=/rootdir_env$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-split --version"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-split --version
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_env admindir=/admindir_env
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_59
+#AT_START_60
+at_fn_group_banner 60 'chdir.at:329' \
+  "dpkg-split chdir env+opt admindir" "              " 5
+at_xfail=no
+(
+  printf "%s\n" "60. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-split --version --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-split --version --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-split --version --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-split --version --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=$DEFAULT_ROOTDIR admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-split --version --root=/rootdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-split --version --root=/rootdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-split --version --admindir=/admindir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-split --version --admindir=/admindir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_60
+#AT_START_61
+at_fn_group_banner 61 'chdir.at:329' \
+  "dpkg-split chdir env+opt root" "                  " 5
+at_xfail=no
+(
+  printf "%s\n" "61. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-split --version --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-split --version --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-split --version --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-split --version --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_env admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-split --version --root=/rootdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-split --version --root=/rootdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-split --version --admindir=/admindir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-split --version --admindir=/admindir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_61
+#AT_START_62
+at_fn_group_banner 62 'chdir.at:329' \
+  "dpkg-split chdir env+opt root+admindir" "         " 5
+at_xfail=no
+(
+  printf "%s\n" "62. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-split --version --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-split --version --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-split --version --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-split --version --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_env admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-split --version --root=/rootdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-split --version --root=/rootdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-split --version --admindir=/admindir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-split --version --admindir=/admindir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_62
+#AT_START_63
+at_fn_group_banner 63 'chdir.at:329' \
+  "dpkg-query chdir opts" "                          " 5
+at_xfail=no
+(
+  printf "%s\n" "63. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_DEBUG=1 dpkg-query --version --root=/rootdir_opt"
+at_fn_check_prepare_trace "chdir.at:329"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-query --version --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_DEBUG=1 dpkg-query --version --admindir=/admindir_opt"
+at_fn_check_prepare_trace "chdir.at:329"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-query --version --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=$DEFAULT_ROOTDIR admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_DEBUG=1 dpkg-query --version --root=/rootdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_trace "chdir.at:329"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-query --version --root=/rootdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_DEBUG=1 dpkg-query --version --admindir=/admindir_opt --root=/rootdir_opt"
+at_fn_check_prepare_trace "chdir.at:329"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-query --version --admindir=/admindir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_63
+#AT_START_64
+at_fn_group_banner 64 'chdir.at:329' \
+  "dpkg-query chdir env" "                           " 5
+at_xfail=no
+(
+  printf "%s\n" "64. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-query --version"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-query --version
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=$DEFAULT_ROOTDIR admindir=/admindir_env
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-query --version"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-query --version
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_env admindir=/rootdir_env$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-query --version"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-query --version
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_env admindir=/admindir_env
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_64
+#AT_START_65
+at_fn_group_banner 65 'chdir.at:329' \
+  "dpkg-query chdir env+opt admindir" "              " 5
+at_xfail=no
+(
+  printf "%s\n" "65. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-query --version --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-query --version --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-query --version --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-query --version --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=$DEFAULT_ROOTDIR admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-query --version --root=/rootdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-query --version --root=/rootdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-query --version --admindir=/admindir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-query --version --admindir=/admindir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_65
+#AT_START_66
+at_fn_group_banner 66 'chdir.at:329' \
+  "dpkg-query chdir env+opt root" "                  " 5
+at_xfail=no
+(
+  printf "%s\n" "66. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-query --version --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-query --version --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-query --version --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-query --version --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_env admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-query --version --root=/rootdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-query --version --root=/rootdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-query --version --admindir=/admindir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-query --version --admindir=/admindir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_66
+#AT_START_67
+at_fn_group_banner 67 'chdir.at:329' \
+  "dpkg-query chdir env+opt root+admindir" "         " 5
+at_xfail=no
+(
+  printf "%s\n" "67. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-query --version --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-query --version --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-query --version --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-query --version --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_env admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-query --version --root=/rootdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-query --version --root=/rootdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-query --version --admindir=/admindir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-query --version --admindir=/admindir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_67
+#AT_START_68
+at_fn_group_banner 68 'chdir.at:329' \
+  "dpkg-trigger chdir opts" "                        " 5
+at_xfail=no
+(
+  printf "%s\n" "68. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_DEBUG=1 dpkg-trigger --version --root=/rootdir_opt"
+at_fn_check_prepare_trace "chdir.at:329"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-trigger --version --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_DEBUG=1 dpkg-trigger --version --admindir=/admindir_opt"
+at_fn_check_prepare_trace "chdir.at:329"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-trigger --version --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=$DEFAULT_ROOTDIR admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_DEBUG=1 dpkg-trigger --version --root=/rootdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_trace "chdir.at:329"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-trigger --version --root=/rootdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_DEBUG=1 dpkg-trigger --version --admindir=/admindir_opt --root=/rootdir_opt"
+at_fn_check_prepare_trace "chdir.at:329"
+( $at_check_trace; DPKG_DEBUG=1 dpkg-trigger --version --admindir=/admindir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_68
+#AT_START_69
+at_fn_group_banner 69 'chdir.at:329' \
+  "dpkg-trigger chdir env" "                         " 5
+at_xfail=no
+(
+  printf "%s\n" "69. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-trigger --version"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-trigger --version
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=$DEFAULT_ROOTDIR admindir=/admindir_env
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-trigger --version"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-trigger --version
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_env admindir=/rootdir_env$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-trigger --version"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-trigger --version
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_env admindir=/admindir_env
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_69
+#AT_START_70
+at_fn_group_banner 70 'chdir.at:329' \
+  "dpkg-trigger chdir env+opt admindir" "            " 5
+at_xfail=no
+(
+  printf "%s\n" "70. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-trigger --version --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-trigger --version --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-trigger --version --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-trigger --version --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=$DEFAULT_ROOTDIR admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-trigger --version --root=/rootdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-trigger --version --root=/rootdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-trigger --version --admindir=/admindir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-trigger --version --admindir=/admindir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_70
+#AT_START_71
+at_fn_group_banner 71 'chdir.at:329' \
+  "dpkg-trigger chdir env+opt root" "                " 5
+at_xfail=no
+(
+  printf "%s\n" "71. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-trigger --version --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-trigger --version --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-trigger --version --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-trigger --version --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_env admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-trigger --version --root=/rootdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-trigger --version --root=/rootdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env \\
+     DPKG_DEBUG=1 dpkg-trigger --version --admindir=/admindir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env \
+     DPKG_DEBUG=1 dpkg-trigger --version --admindir=/admindir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_71
+#AT_START_72
+at_fn_group_banner 72 'chdir.at:329' \
+  "dpkg-trigger chdir env+opt root+admindir" "       " 5
+at_xfail=no
+(
+  printf "%s\n" "72. $at_setup_line: testing $at_desc ..."
+  $at_traceon
+
+
+
+  DPKG_ROOT=
+  DPKG_ADMINDIR=
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-trigger --version --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-trigger --version --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-trigger --version --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-trigger --version --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_env admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-trigger --version --root=/rootdir_opt --admindir=/admindir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-trigger --version --root=/rootdir_opt --admindir=/admindir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/admindir_opt
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+  { set +x
+printf "%s\n" "$at_srcdir/chdir.at:329: DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \\
+     DPKG_DEBUG=1 dpkg-trigger --version --admindir=/admindir_opt --root=/rootdir_opt"
+at_fn_check_prepare_notrace 'an embedded newline' "chdir.at:329"
+( $at_check_trace; DPKG_ROOT=/rootdir_env DPKG_ADMINDIR=/admindir_env \
+     DPKG_DEBUG=1 dpkg-trigger --version --admindir=/admindir_opt --root=/rootdir_opt
+) >>"$at_stdout" 2>>"$at_stderr" 5>&-
+at_status=$? at_failed=false
+$at_check_filter
+echo >>"$at_stderr"; printf "%s\n" "D000001: root=/rootdir_opt admindir=/rootdir_opt$DEFAULT_ADMINDIR
+" | \
+  $at_diff - "$at_stderr" || at_failed=:
+echo stdout:; cat "$at_stdout"
+at_fn_check_status 0 $at_status "$at_srcdir/chdir.at:329"
+$at_failed && at_fn_log_failure
+$at_traceon; }
+
+
+    set +x
+  $at_times_p && times >"$at_times_file"
+) 5>&1 2>&1 7>&- | eval $at_tee_pipe
+read at_status <"$at_status_file"
+#AT_STOP_72
diff --git a/src/at/testsuite.at b/src/at/testsuite.at
new file mode 100644
index 0000000..86e2d37
--- /dev/null
+++ b/src/at/testsuite.at
@@ -0,0 +1,24 @@
+AT_INIT([dpkg tools functional test suite])
+AT_COLOR_TESTS
+
+AT_TESTED([dpkg-deb])
+AT_BANNER([Binary .deb packages])
+m4_include([deb-format.at])
+m4_include([deb-content.at])
+m4_include([deb-fields.at])
+
+AT_TESTED([dpkg-split])
+AT_BANNER([Split .deb packages])
+m4_include([deb-split.at])
+
+AT_TESTED([dpkg-realpath])
+AT_BANNER([Resolve pathnames])
+m4_include([realpath.at])
+
+AT_TESTED([dpkg-divert])
+AT_BANNER([Diversions])
+m4_include([divert.at])
+
+AT_TESTED([dpkg])
+AT_BANNER([Change directory options])
+m4_include([chdir.at])
diff --git a/src/common/actions.h b/src/common/actions.h
new file mode 100644
index 0000000..a78f329
--- /dev/null
+++ b/src/common/actions.h
@@ -0,0 +1,78 @@
+/*
+ * dpkg - main program for package management
+ * actions.h - command action definition list
+ *
+ * Copyright © 1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2006, 2008-2016 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef DPKG_ACTIONS_H
+#define DPKG_ACTIONS_H
+
+enum action {
+	act_unset,
+
+	act_unpack,
+	act_configure,
+	act_install,
+	act_triggers,
+	act_remove,
+	act_purge,
+	act_verify,
+	act_commandfd,
+
+	act_status,
+	act_listpackages,
+	act_listfiles,
+	act_searchfiles,
+	act_controlpath,
+	act_controllist,
+	act_controlshow,
+
+	act_cmpversions,
+
+	act_arch_add,
+	act_arch_remove,
+	act_printarch,
+	act_printforeignarches,
+
+	act_assert_feature,
+
+	act_validate_pkgname,
+	act_validate_trigname,
+	act_validate_archname,
+	act_validate_version,
+
+	act_audit,
+	act_unpackchk,
+	act_predeppackage,
+
+	act_getselections,
+	act_setselections,
+	act_clearselections,
+
+	act_avail,
+	act_printavail,
+	act_avclear,
+	act_avreplace,
+	act_avmerge,
+	act_forgetold,
+
+	act_help,
+	act_version,
+};
+
+#endif /* DPKG_ACTIONS_H */
diff --git a/src/common/force.c b/src/common/force.c
new file mode 100644
index 0000000..c4401f0
--- /dev/null
+++ b/src/common/force.c
@@ -0,0 +1,405 @@
+/*
+ * dpkg - main program for package management
+ * force.c - force operation support
+ *
+ * Copyright © 1994,1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2006-2019 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <errno.h>
+#include <string.h>
+#include <stdbool.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <dpkg/macros.h>
+#include <dpkg/i18n.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/options.h>
+
+#include "force.h"
+
+static int force_mask;
+static int force_flags;
+
+enum forcetype {
+	FORCETYPE_DISABLED,
+	FORCETYPE_ENABLED,
+	FORCETYPE_DAMAGE,
+};
+
+static const char *
+forcetype_str(enum forcetype type)
+{
+	switch (type) {
+	case FORCETYPE_DISABLED:
+		return "   ";
+	case FORCETYPE_ENABLED:
+		return "[*]";
+	case FORCETYPE_DAMAGE:
+		return "[!]";
+	default:
+		internerr("unknown force type '%d'", type);
+	}
+}
+
+static const struct forceinfo {
+	const char *name;
+	int flag;
+	char type;
+	const char *desc;
+} forceinfos[] = {
+	{
+		"all",
+		FORCE_ALL,
+		FORCETYPE_DAMAGE,
+		N_("Set all force options"),
+	}, {
+		"security-mac",
+		FORCE_SECURITY_MAC,
+		FORCETYPE_ENABLED,
+		N_("Use MAC based security if available"),
+	}, {
+		"downgrade",
+		FORCE_DOWNGRADE,
+		FORCETYPE_ENABLED,
+		N_("Replace a package with a lower version"),
+	}, {
+		"configure-any",
+		FORCE_CONFIGURE_ANY,
+		FORCETYPE_DISABLED,
+		N_("Configure any package which may help this one"),
+	}, {
+		"hold",
+		FORCE_HOLD,
+		FORCETYPE_DISABLED,
+		N_("Install or remove incidental packages even when on hold"),
+	}, {
+		"not-root",
+		FORCE_NON_ROOT,
+		FORCETYPE_DISABLED,
+		N_("Try to (de)install things even when not root"),
+	}, {
+		"bad-path",
+		FORCE_BAD_PATH,
+		FORCETYPE_DISABLED,
+		N_("PATH is missing important programs, problems likely"),
+	}, {
+		"bad-verify",
+		FORCE_BAD_VERIFY,
+		FORCETYPE_DISABLED,
+		N_("Install a package even if it fails authenticity check"),
+	}, {
+		"bad-version",
+		FORCE_BAD_VERSION,
+		FORCETYPE_DISABLED,
+		N_("Process even packages with wrong versions"),
+	}, {
+		"statoverride-add",
+		FORCE_STATOVERRIDE_ADD,
+		FORCETYPE_DISABLED,
+		N_("Overwrite an existing stat override when adding it"),
+	}, {
+		"statoverride-remove",
+		FORCE_STATOVERRIDE_DEL,
+		FORCETYPE_DISABLED,
+		N_("Ignore a missing stat override when removing it"),
+	}, {
+		"overwrite",
+		FORCE_OVERWRITE,
+		FORCETYPE_DISABLED,
+		N_("Overwrite a file from one package with another"),
+	}, {
+		"overwrite-diverted",
+		FORCE_OVERWRITE_DIVERTED,
+		FORCETYPE_DISABLED,
+		N_("Overwrite a diverted file with an undiverted version"),
+	}, {
+		"overwrite-dir",
+		FORCE_OVERWRITE_DIR,
+		FORCETYPE_DAMAGE,
+		N_("Overwrite one package's directory with another's file"),
+	}, {
+		"unsafe-io",
+		FORCE_UNSAFE_IO,
+		FORCETYPE_DAMAGE,
+		N_("Do not perform safe I/O operations when unpacking"),
+	}, {
+		"script-chrootless",
+		FORCE_SCRIPT_CHROOTLESS,
+		FORCETYPE_DAMAGE,
+		N_("Do not chroot into maintainer script environment"),
+	}, {
+		"confnew",
+		FORCE_CONFF_NEW,
+		FORCETYPE_DAMAGE,
+		N_("Always use the new config files, don't prompt"),
+	}, {
+		"confold",
+		FORCE_CONFF_OLD,
+		FORCETYPE_DAMAGE,
+		N_("Always use the old config files, don't prompt"),
+	}, {
+		"confdef",
+		FORCE_CONFF_DEF,
+		FORCETYPE_DAMAGE,
+		N_("Use the default option for new config files if one\n"
+		   "is available, don't prompt. If no default can be found,\n"
+		   "you will be prompted unless one of the confold or\n"
+		   "confnew options is also given"),
+	}, {
+		"confmiss",
+		FORCE_CONFF_MISS,
+		FORCETYPE_DAMAGE,
+		N_("Always install missing config files"),
+	}, {
+		"confask",
+		FORCE_CONFF_ASK,
+		FORCETYPE_DAMAGE,
+		N_("Offer to replace config files with no new versions"),
+	}, {
+		"architecture",
+		FORCE_ARCHITECTURE,
+		FORCETYPE_DAMAGE,
+		N_("Process even packages with wrong or no architecture"),
+	}, {
+		"breaks",
+		FORCE_BREAKS,
+		FORCETYPE_DAMAGE,
+		N_("Install even if it would break another package"),
+	}, {
+		"conflicts",
+		FORCE_CONFLICTS,
+		FORCETYPE_DAMAGE,
+		N_("Allow installation of conflicting packages"),
+	}, {
+		"depends",
+		FORCE_DEPENDS,
+		FORCETYPE_DAMAGE,
+		N_("Turn all dependency problems into warnings"),
+	}, {
+		"depends-version",
+		FORCE_DEPENDS_VERSION,
+		FORCETYPE_DAMAGE,
+		N_("Turn dependency version problems into warnings"),
+	}, {
+		"remove-reinstreq",
+		FORCE_REMOVE_REINSTREQ,
+		FORCETYPE_DAMAGE,
+		N_("Remove packages which require installation"),
+	}, {
+		"remove-protected",
+		FORCE_REMOVE_PROTECTED,
+		FORCETYPE_DAMAGE,
+		N_("Remove a protected package"),
+	}, {
+		"remove-essential",
+		FORCE_REMOVE_ESSENTIAL,
+		FORCETYPE_DAMAGE,
+		N_("Remove an essential package"),
+	}, {
+		NULL
+	}
+};
+
+bool
+in_force(int flags)
+{
+	return (flags & force_flags) == flags;
+}
+
+void
+set_force(int flags)
+{
+	force_flags |= flags;
+}
+
+void
+reset_force(int flags)
+{
+	force_flags &= ~flags;
+}
+
+char *
+get_force_string(void)
+{
+	const struct forceinfo *fip;
+	struct varbuf vb = VARBUF_INIT;
+
+	for (fip = forceinfos; fip->name; fip++) {
+		if ((enum force_flags)fip->flag == FORCE_ALL ||
+		    (fip->flag & force_mask) != fip->flag ||
+		    !in_force(fip->flag))
+			continue;
+
+		if (vb.used)
+			varbuf_add_char(&vb, ',');
+		varbuf_add_str(&vb, fip->name);
+	}
+	varbuf_end_str(&vb);
+
+	return varbuf_detach(&vb);
+}
+
+static inline void
+print_forceinfo_line(int type, const char *name, const char *desc)
+{
+	printf("  %s %-18s %s\n", forcetype_str(type), name, desc);
+}
+
+static void
+print_forceinfo(const struct forceinfo *fi)
+{
+	char *desc, *line;
+
+	desc = m_strdup(gettext(fi->desc));
+
+	line = strtok(desc, "\n");
+	print_forceinfo_line(fi->type, fi->name, line);
+	while ((line = strtok(NULL, "\n")))
+		print_forceinfo_line(FORCETYPE_DISABLED, "", line);
+
+	free(desc);
+}
+
+void
+parse_force(const char *value, bool set)
+{
+	const struct forceinfo *fip;
+
+	if (strcmp(value, "help") == 0) {
+		char *force_string = get_force_string();
+
+		printf(_(
+"%s forcing options - control behavior when problems found:\n"
+"  warn but continue:  --force-<thing>,<thing>,...\n"
+"  stop with error:    --refuse-<thing>,<thing>,... | --no-force-<thing>,...\n"
+" Forcing things:\n"), dpkg_get_progname());
+
+		for (fip = forceinfos; fip->name; fip++)
+			if ((enum force_flags)fip->flag == FORCE_ALL ||
+			    (fip->flag & force_mask) == fip->flag)
+				print_forceinfo(fip);
+
+		printf(_(
+"\n"
+"WARNING - use of options marked [!] can seriously damage your installation.\n"
+"Forcing options marked [*] are enabled by default.\n"));
+		m_output(stdout, _("<standard output>"));
+
+		printf(_(
+"\n"
+"Currently enabled options:\n"
+" %s\n"), force_string);
+
+		free(force_string);
+
+		exit(0);
+	}
+
+	for (;;) {
+		const char *comma;
+		size_t l;
+
+		comma = strchrnul(value, ',');
+		l = (size_t)(comma - value);
+		for (fip = forceinfos; fip->name; fip++)
+			if (strncmp(fip->name, value, l) == 0 &&
+			    strlen(fip->name) == l)
+				break;
+
+		if (!fip->name) {
+			badusage(_("unknown force/refuse option '%.*s'"),
+			         (int)min(l, 250), value);
+		} else if (fip->flag) {
+			if (set)
+				set_force(fip->flag);
+			else
+				reset_force(fip->flag);
+		} else {
+			warning(_("obsolete force/refuse option '%s'"),
+			        fip->name);
+		}
+
+		if (*comma == '\0')
+			break;
+		value = ++comma;
+	}
+}
+
+void
+set_force_default(int mask)
+{
+	const char *force_env;
+	const struct forceinfo *fip;
+
+	force_mask = mask;
+
+	/* If we get passed force options from the environment, do not
+	 * initialize from the built-in defaults. */
+	force_env = getenv("DPKG_FORCE");
+	if (force_env != NULL) {
+		if (force_env[0] != '\0')
+			parse_force(force_env, 1);
+		return;
+	}
+
+	for (fip = forceinfos; fip->name; fip++)
+		if (fip->type == FORCETYPE_ENABLED)
+			set_force(fip->flag);
+}
+
+void
+set_force_option(const struct cmdinfo *cip, const char *value)
+{
+	bool set = cip->arg_int;
+
+	parse_force(value, set);
+}
+
+void
+reset_force_option(const struct cmdinfo *cip, const char *value)
+{
+	reset_force(cip->arg_int);
+}
+
+void
+forcibleerr(int forceflag, const char *fmt, ...)
+{
+	va_list args;
+
+	va_start(args, fmt);
+	if (in_force(forceflag)) {
+		warning(_("overriding problem because --force enabled:"));
+		warningv(fmt, args);
+	} else {
+		ohshitv(fmt, args);
+	}
+	va_end(args);
+}
+
+int
+forcible_nonroot_error(int rc)
+{
+	if (in_force(FORCE_NON_ROOT) && errno == EPERM)
+		return 0;
+	return rc;
+}
diff --git a/src/common/force.h b/src/common/force.h
new file mode 100644
index 0000000..c232c7f
--- /dev/null
+++ b/src/common/force.h
@@ -0,0 +1,85 @@
+/*
+ * dpkg - main program for package management
+ * force.h - forced operation support
+ *
+ * Copyright © 1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2006, 2008-2019 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef DPKG_FORCE_H
+#define DPKG_FORCE_H
+
+#include <dpkg/dpkg.h>
+#include <dpkg/options.h>
+
+enum DPKG_ATTR_ENUM_FLAGS force_flags {
+	FORCE_ARCHITECTURE = DPKG_BIT(0),
+	FORCE_BAD_PATH = DPKG_BIT(1),
+	FORCE_BAD_VERIFY = DPKG_BIT(2),
+	FORCE_BAD_VERSION = DPKG_BIT(3),
+	FORCE_BREAKS = DPKG_BIT(4),
+	FORCE_CONFF_ASK = DPKG_BIT(5),
+	FORCE_CONFF_DEF = DPKG_BIT(6),
+	FORCE_CONFF_MISS = DPKG_BIT(7),
+	FORCE_CONFF_NEW = DPKG_BIT(8),
+	FORCE_CONFF_OLD = DPKG_BIT(9),
+	FORCE_CONFIGURE_ANY = DPKG_BIT(10),
+	FORCE_CONFLICTS = DPKG_BIT(11),
+	FORCE_DEPENDS = DPKG_BIT(12),
+	FORCE_DEPENDS_VERSION = DPKG_BIT(13),
+	FORCE_DOWNGRADE = DPKG_BIT(14),
+	FORCE_HOLD = DPKG_BIT(15),
+	FORCE_NON_ROOT = DPKG_BIT(16),
+	FORCE_OVERWRITE = DPKG_BIT(17),
+	FORCE_OVERWRITE_DIR = DPKG_BIT(18),
+	FORCE_OVERWRITE_DIVERTED = DPKG_BIT(19),
+	FORCE_REMOVE_ESSENTIAL = DPKG_BIT(20),
+	FORCE_REMOVE_REINSTREQ = DPKG_BIT(21),
+	FORCE_SCRIPT_CHROOTLESS = DPKG_BIT(22),
+	FORCE_UNSAFE_IO = DPKG_BIT(23),
+	FORCE_STATOVERRIDE_ADD = DPKG_BIT(24),
+	FORCE_STATOVERRIDE_DEL = DPKG_BIT(25),
+	FORCE_SECURITY_MAC = DPKG_BIT(26),
+	FORCE_REMOVE_PROTECTED = DPKG_BIT(27),
+	FORCE_ALL = 0xffffffff,
+};
+
+bool
+in_force(int flags);
+void
+set_force(int flags);
+void
+reset_force(int flags);
+
+char *
+get_force_string(void);
+
+void
+parse_force(const char *value, bool set);
+
+void
+set_force_default(int mask);
+void
+set_force_option(const struct cmdinfo *cip, const char *value);
+void
+reset_force_option(const struct cmdinfo *cip, const char *value);
+
+void
+forcibleerr(int forceflag, const char *format, ...) DPKG_ATTR_PRINTF(2);
+int
+forcible_nonroot_error(int rc);
+
+#endif /* DPKG_FORCE_H */
diff --git a/src/common/security-mac.h b/src/common/security-mac.h
new file mode 100644
index 0000000..637c6f7
--- /dev/null
+++ b/src/common/security-mac.h
@@ -0,0 +1,30 @@
+/*
+ * dpkg - main program for package management
+ * security-mac.h - MAC-based security support
+ *
+ * Copyright © 2015 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef DPKG_SECURITY_MAC_H
+#define DPKG_SECURITY_MAC_H
+
+#include <sys/stat.h>
+
+void dpkg_selabel_load(void);
+void dpkg_selabel_set_context(const char *matchpath, const char *path, mode_t mode);
+void dpkg_selabel_close(void);
+
+#endif /* DPKG_SECURITY_MAC_H */
diff --git a/src/common/selinux.c b/src/common/selinux.c
new file mode 100644
index 0000000..b5d29d8
--- /dev/null
+++ b/src/common/selinux.c
@@ -0,0 +1,156 @@
+/*
+ * dpkg - main program for package management
+ * selinux.c - SELinux support
+ *
+ * Copyright © 2007-2015 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <errno.h>
+#include <unistd.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+
+#ifdef WITH_LIBSELINUX
+#include <selinux/selinux.h>
+#include <selinux/avc.h>
+#include <selinux/label.h>
+#endif
+
+#include "force.h"
+#include "security-mac.h"
+
+#ifdef WITH_LIBSELINUX
+static struct selabel_handle *sehandle;
+#endif
+
+#ifdef WITH_LIBSELINUX
+static int DPKG_ATTR_PRINTF(2)
+log_callback(int type, const char *fmt, ...)
+{
+	va_list ap;
+	char *msg;
+
+	switch (type) {
+	case SELINUX_ERROR:
+	case SELINUX_WARNING:
+	case SELINUX_AVC:
+		break;
+	default:
+		return 0;
+	}
+
+	va_start(ap, fmt);
+	m_vasprintf(&msg, fmt, ap);
+	va_end(ap);
+
+	warning("selinux: %s", msg);
+	free(msg);
+
+	return 0;
+}
+#endif
+
+void
+dpkg_selabel_load(void)
+{
+#ifdef WITH_LIBSELINUX
+	static int selinux_enabled = -1;
+
+	if (selinux_enabled < 0) {
+		int rc;
+
+		/* Set selinux_enabled if it is not already set (singleton). */
+		selinux_enabled = (in_force(FORCE_SECURITY_MAC) &&
+		                   is_selinux_enabled() > 0);
+		if (!selinux_enabled)
+			return;
+
+		/* Open the SELinux status notification channel, with fallback
+		 * enabled for older kernels. */
+		rc = selinux_status_open(1);
+		if (rc < 0)
+			ohshit(_("cannot open security status notification channel"));
+
+		selinux_set_callback(SELINUX_CB_LOG, (union selinux_callback) {
+			.func_log = log_callback,
+		});
+	} else if (selinux_enabled && selinux_status_updated()) {
+		/* The SELinux policy got updated in the kernel, usually after
+		 * upgrading the package shipping it, we need to reload. */
+		selabel_close(sehandle);
+	} else {
+		/* SELinux is either disabled or it does not need a reload. */
+		return;
+	}
+
+	sehandle = selabel_open(SELABEL_CTX_FILE, NULL, 0);
+	if (sehandle == NULL && security_getenforce() == 1)
+		ohshite(_("cannot get security labeling handle"));
+#endif
+}
+
+void
+dpkg_selabel_set_context(const char *matchpath, const char *path, mode_t mode)
+{
+#ifdef WITH_LIBSELINUX
+	char *scontext = NULL;
+	int ret;
+
+	/* If SELinux is not enabled just do nothing. */
+	if (sehandle == NULL)
+		return;
+
+	/*
+	 * We use the _raw function variants here so that no translation
+	 * happens from computer to human readable forms, to avoid issues
+	 * when mcstransd has disappeared during the unpack process.
+	 */
+
+	/* Do nothing if we can't figure out what the context is, or if it has
+	 * no context; in which case the default context shall be applied. */
+	ret = selabel_lookup_raw(sehandle, &scontext, matchpath, mode & S_IFMT);
+	if (ret == -1 || (ret == 0 && scontext == NULL))
+		return;
+
+	ret = lsetfilecon_raw(path, scontext);
+	if (ret < 0 && errno != ENOTSUP)
+		ohshite(_("cannot set security context for file object '%s'"),
+		        path);
+
+	freecon(scontext);
+#endif /* WITH_LIBSELINUX */
+}
+
+void
+dpkg_selabel_close(void)
+{
+#ifdef WITH_LIBSELINUX
+	if (sehandle == NULL)
+		return;
+
+	selinux_status_close();
+	selabel_close(sehandle);
+	sehandle = NULL;
+#endif
+}
diff --git a/src/deb/build.c b/src/deb/build.c
new file mode 100644
index 0000000..597872b
--- /dev/null
+++ b/src/deb/build.c
@@ -0,0 +1,729 @@
+/*
+ * dpkg-deb - construction and deconstruction of *.deb archives
+ * build.c - building archives
+ *
+ * Copyright © 1994,1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2000,2001 Wichert Akkerman <wakkerma@debian.org>
+ * Copyright © 2007-2015 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+
+#include <errno.h>
+#include <limits.h>
+#include <inttypes.h>
+#include <string.h>
+#include <time.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/c-ctype.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/path.h>
+#include <dpkg/treewalk.h>
+#include <dpkg/varbuf.h>
+#include <dpkg/fdio.h>
+#include <dpkg/buffer.h>
+#include <dpkg/subproc.h>
+#include <dpkg/command.h>
+#include <dpkg/compress.h>
+#include <dpkg/ar.h>
+#include <dpkg/options.h>
+
+#include "dpkg-deb.h"
+
+static void
+control_treewalk_feed(const char *dir, int fd_out)
+{
+  struct treeroot *tree;
+  struct treenode *node;
+
+  tree = treewalk_open(dir, TREEWALK_NONE, NULL);
+  for (node = treewalk_node(tree); node; node = treewalk_next(tree)) {
+    char *nodename;
+
+    nodename = str_fmt("./%s", treenode_get_virtname(node));
+    if (fd_write(fd_out, nodename, strlen(nodename) + 1) < 0)
+      ohshite(_("failed to write filename to tar pipe (%s)"),
+              _("control member"));
+    free(nodename);
+  }
+  treewalk_close(tree);
+}
+
+/**
+ * Simple structure to store information about a file.
+ */
+struct file_info {
+  struct file_info *next;
+  char *fn;
+};
+
+static struct file_info *
+file_info_new(const char *filename)
+{
+  struct file_info *fi;
+
+  fi = m_malloc(sizeof(*fi));
+  fi->fn = m_strdup(filename);
+  fi->next = NULL;
+
+  return fi;
+}
+
+static void
+file_info_free(struct file_info *fi)
+{
+  free(fi->fn);
+  free(fi);
+}
+
+static struct file_info *
+file_info_find_name(struct file_info *list, const char *filename)
+{
+  struct file_info *node;
+
+  for (node = list; node; node = node->next)
+    if (strcmp(node->fn, filename) == 0)
+      return node;
+
+  return NULL;
+}
+
+/**
+ * Add a new file_info struct to a single linked list of file_info structs.
+ *
+ * We perform a slight optimization to work around a ‘feature’ in tar: tar
+ * always recurses into subdirectories if you list a subdirectory. So if an
+ * entry is added and the previous entry in the list is its subdirectory we
+ * remove the subdirectory.
+ *
+ * After a file_info struct is added to a list it may no longer be freed, we
+ * assume full responsibility for its memory.
+ */
+static void
+file_info_list_append(struct file_info **head, struct file_info **tail,
+                      struct file_info *fi)
+{
+  if (*head == NULL)
+    *head = *tail = fi;
+  else
+    *tail = (*tail)->next =fi;
+}
+
+/**
+ * Free the memory for all entries in a list of file_info structs.
+ */
+static void
+file_info_list_free(struct file_info *fi)
+{
+  while (fi) {
+    struct file_info *fl;
+
+    fl=fi; fi=fi->next;
+    file_info_free(fl);
+  }
+}
+
+static void
+file_treewalk_feed(const char *dir, int fd_out)
+{
+  struct treeroot *tree;
+  struct treenode *node;
+  struct file_info *fi;
+  struct file_info *symlist = NULL;
+  struct file_info *symlist_end = NULL;
+
+  tree = treewalk_open(dir, TREEWALK_NONE, NULL);
+  for (node = treewalk_node(tree); node ; node = treewalk_next(tree)) {
+    const char *virtname = treenode_get_virtname(node);
+    char *nodename;
+
+    if (strncmp(virtname, BUILDCONTROLDIR, strlen(BUILDCONTROLDIR)) == 0)
+      continue;
+
+    nodename = str_fmt("./%s", virtname);
+
+    if (!opt_nocheck && strchr(nodename, '\n'))
+      ohshit(_("newline not allowed in pathname '%s'"), nodename);
+
+    /* We need to reorder the files so we can make sure that symlinks
+     * will not appear before their target. */
+    if (S_ISLNK(treenode_get_mode(node))) {
+      fi = file_info_new(nodename);
+      file_info_list_append(&symlist, &symlist_end, fi);
+    } else {
+      if (fd_write(fd_out, nodename, strlen(nodename) + 1) < 0)
+        ohshite(_("failed to write filename to tar pipe (%s)"),
+                _("data member"));
+    }
+
+    free(nodename);
+  }
+  treewalk_close(tree);
+
+  for (fi = symlist; fi; fi = fi->next)
+    if (fd_write(fd_out, fi->fn, strlen(fi->fn) + 1) < 0)
+      ohshite(_("failed to write filename to tar pipe (%s)"), _("data member"));
+
+  file_info_list_free(symlist);
+}
+
+static const char *const maintainerscripts[] = {
+  PREINSTFILE,
+  POSTINSTFILE,
+  PRERMFILE,
+  POSTRMFILE,
+  MAINTSCRIPT_FILE_CONFIG,
+  NULL,
+};
+
+/**
+ * Check control directory and file permissions.
+ */
+static void
+check_file_perms(const char *ctrldir)
+{
+  struct varbuf path = VARBUF_INIT;
+  const char *const *mscriptp;
+  struct stat mscriptstab;
+
+  varbuf_printf(&path, "%s/", ctrldir);
+  if (lstat(path.buf, &mscriptstab))
+    ohshite(_("unable to stat control directory"));
+  if (!S_ISDIR(mscriptstab.st_mode))
+    ohshit(_("control directory is not a directory"));
+  if ((mscriptstab.st_mode & 07757) != 0755)
+    ohshit(_("control directory has bad permissions %03lo "
+             "(must be >=0755 and <=0775)"),
+           (unsigned long)(mscriptstab.st_mode & 07777));
+
+  for (mscriptp = maintainerscripts; *mscriptp; mscriptp++) {
+    varbuf_reset(&path);
+    varbuf_printf(&path, "%s/%s", ctrldir, *mscriptp);
+    if (!lstat(path.buf, &mscriptstab)) {
+      if (S_ISLNK(mscriptstab.st_mode))
+        continue;
+      if (!S_ISREG(mscriptstab.st_mode))
+        ohshit(_("maintainer script '%.50s' is not a plain file or symlink"),
+               *mscriptp);
+      if ((mscriptstab.st_mode & 07557) != 0555)
+        ohshit(_("maintainer script '%.50s' has bad permissions %03lo "
+                 "(must be >=0555 and <=0775)"),
+               *mscriptp, (unsigned long)(mscriptstab.st_mode & 07777));
+    } else if (errno != ENOENT) {
+      ohshite(_("maintainer script '%.50s' is not stattable"), *mscriptp);
+    }
+  }
+
+  varbuf_destroy(&path);
+}
+
+/**
+ * Check if conffiles contains sane information.
+ */
+static void
+check_conffiles(const char *ctrldir, const char *rootdir)
+{
+  FILE *cf;
+  struct varbuf controlfile = VARBUF_INIT;
+  char conffilenamebuf[MAXCONFFILENAME + 1];
+  struct file_info *conffiles_head = NULL;
+  struct file_info *conffiles_tail = NULL;
+
+  varbuf_printf(&controlfile, "%s/%s", ctrldir, CONFFILESFILE);
+
+  cf = fopen(controlfile.buf, "r");
+  if (cf == NULL) {
+    if (errno == ENOENT) {
+      varbuf_destroy(&controlfile);
+      return;
+    }
+
+    ohshite(_("error opening conffiles file"));
+  }
+
+  while (fgets(conffilenamebuf, MAXCONFFILENAME + 1, cf)) {
+    struct stat controlstab;
+    char *conffilename = conffilenamebuf;
+    int n;
+    bool remove_on_upgrade = false;
+
+    n = strlen(conffilename);
+    if (!n)
+      ohshite(_("empty string from fgets reading conffiles"));
+
+    if (conffilename[n - 1] != '\n')
+      ohshit(_("conffile name '%s' is too long, or missing final newline"),
+             conffilename);
+
+    conffilename[--n] = '\0';
+
+    if (c_isspace(conffilename[0])) {
+      /* The conffiles lines cannot start with whitespace; by handling this
+       * case now, we simplify the remaining code. Move past the whitespace
+       * to give a better error. */
+      while (c_isspace(conffilename[0]))
+        conffilename++;
+      if (conffilename[0] == '\0')
+          ohshit(_("empty and whitespace-only lines are not allowed in "
+                   "conffiles"));
+      ohshit(_("line with conffile filename '%s' has leading white spaces"),
+             conffilename);
+    }
+
+    if (conffilename[0] != '/') {
+      char *flag = conffilename;
+      char *flag_end = strchr(flag, ' ');
+
+      if (flag_end) {
+        conffilename = flag_end + 1;
+        n -= conffilename - flag;
+      }
+
+      /* If no flag separator is found, assume a missing leading slash. */
+      if (flag_end == NULL || (conffilename[0] && conffilename[0] != '/'))
+        ohshit(_("conffile name '%s' is not an absolute pathname"), conffilename);
+
+      flag_end[0] = '\0';
+
+      /* Otherwise assume a missing filename after the flag separator. */
+      if (conffilename[0] == '\0')
+        ohshit(_("conffile name missing after flag '%s'"), flag);
+
+      if (strcmp(flag, "remove-on-upgrade") == 0)
+        remove_on_upgrade = true;
+      else
+        ohshit(_("unknown flag '%s' for conffile '%s'"), flag, conffilename);
+    }
+
+    varbuf_reset(&controlfile);
+    varbuf_printf(&controlfile, "%s%s", rootdir, conffilename);
+    if (lstat(controlfile.buf, &controlstab)) {
+      if (errno == ENOENT) {
+        if ((n > 1) && c_isspace(conffilename[n - 1]))
+          warning(_("conffile filename '%s' contains trailing white spaces"),
+                  conffilename);
+        if (!remove_on_upgrade)
+          ohshit(_("conffile '%.250s' does not appear in package"), conffilename);
+      } else
+        ohshite(_("conffile '%.250s' is not stattable"), conffilename);
+    } else if (remove_on_upgrade) {
+        ohshit(_("conffile '%s' is present but is requested to be removed"),
+               conffilename);
+    } else if (!S_ISREG(controlstab.st_mode)) {
+      warning(_("conffile '%s' is not a plain file"), conffilename);
+    }
+
+    if (file_info_find_name(conffiles_head, conffilename)) {
+      warning(_("conffile name '%s' is duplicated"), conffilename);
+    } else {
+      struct file_info *conffile;
+
+      conffile = file_info_new(conffilename);
+      file_info_list_append(&conffiles_head, &conffiles_tail, conffile);
+    }
+  }
+
+  file_info_list_free(conffiles_head);
+  varbuf_destroy(&controlfile);
+
+  if (ferror(cf))
+    ohshite(_("error reading conffiles file"));
+  fclose(cf);
+}
+
+/**
+ * Check the control file.
+ *
+ * @param ctrldir The directory from where to build the binary package.
+ * @return The pkginfo struct from the parsed control file.
+ */
+static struct pkginfo *
+check_control_file(const char *ctrldir)
+{
+  struct pkginfo *pkg;
+  char *controlfile;
+
+  controlfile = str_fmt("%s/%s", ctrldir, CONTROLFILE);
+  parsedb(controlfile, pdb_parse_binary, &pkg);
+
+  if (strspn(pkg->set->name, "abcdefghijklmnopqrstuvwxyz0123456789+-.") !=
+      strlen(pkg->set->name))
+    ohshit(_("package name has characters that aren't lowercase alphanums or '-+.'"));
+  if (pkg->available.arch->type == DPKG_ARCH_NONE ||
+      pkg->available.arch->type == DPKG_ARCH_EMPTY)
+    ohshit(_("package architecture is missing or empty"));
+  if (pkg->priority == PKG_PRIO_OTHER)
+    warning(_("'%s' contains user-defined Priority value '%s'"),
+            controlfile, pkg->otherpriority);
+
+  free(controlfile);
+
+  return pkg;
+}
+
+/**
+ * Perform some sanity checks on the to-be-built package control area.
+ *
+ * @param ctrldir The directory from where to build the binary package.
+ * @return The pkginfo struct from the parsed control file.
+ */
+static struct pkginfo *
+check_control_area(const char *ctrldir, const char *rootdir)
+{
+  struct pkginfo *pkg;
+  int warns;
+
+  /* Start by reading in the control file so we can check its contents. */
+  pkg = check_control_file(ctrldir);
+  check_file_perms(ctrldir);
+  check_conffiles(ctrldir, rootdir);
+
+  warns = warning_get_count();
+  if (warns)
+    warning(P_("ignoring %d warning about the control file(s)",
+               "ignoring %d warnings about the control file(s)", warns),
+            warns);
+
+  return pkg;
+}
+
+/**
+ * Generate the pathname for the destination binary package.
+ *
+ * If the pathname cannot be computed, because the destination is a directory,
+ * then NULL will be returned.
+ *
+ * @param dir	The directory from where to build the binary package.
+ * @param dest	The destination name, either a file or directory name.
+ * @return	The pathname for the package being built.
+ */
+static char *
+gen_dest_pathname(const char *dir, const char *dest)
+{
+  if (dest) {
+    struct stat dest_stab;
+
+    if (stat(dest, &dest_stab)) {
+      if (errno != ENOENT)
+        ohshite(_("unable to check for existence of archive '%.250s'"), dest);
+    } else if (S_ISDIR(dest_stab.st_mode)) {
+      /* Need to compute the destination name from the package control file. */
+      return NULL;
+    }
+
+    return m_strdup(dest);
+  } else {
+    char *pathname;
+
+    pathname = m_malloc(strlen(dir) + sizeof(DEBEXT));
+    strcpy(pathname, dir);
+    path_trim_slash_slashdot(pathname);
+    strcat(pathname, DEBEXT);
+
+    return pathname;
+  }
+}
+
+/**
+ * Generate the pathname for the destination binary package from control file.
+ *
+ * @return The pathname for the package being built.
+ */
+static char *
+gen_dest_pathname_from_pkg(const char *dir, struct pkginfo *pkg)
+{
+  return str_fmt("%s/%s_%s_%s%s", dir, pkg->set->name,
+                 versiondescribe(&pkg->available.version, vdew_never),
+                 pkg->available.arch->name, DEBEXT);
+}
+
+typedef void filenames_feed_func(const char *dir, int fd_out);
+
+struct tar_pack_options {
+  intmax_t timestamp;
+  const char *mode;
+  bool root_owner_group;
+};
+
+/**
+ * Pack the contents of a directory into a tarball.
+ */
+static void
+tarball_pack(const char *dir, filenames_feed_func *tar_filenames_feeder,
+             struct tar_pack_options *options,
+             struct compress_params *tar_compress_params, int fd_out)
+{
+  int pipe_filenames[2], pipe_tarball[2];
+  pid_t pid_tar, pid_comp;
+
+  /* Fork off a tar. We will feed it a list of filenames on stdin later. */
+  m_pipe(pipe_filenames);
+  m_pipe(pipe_tarball);
+  pid_tar = subproc_fork();
+  if (pid_tar == 0) {
+    struct command cmd;
+    char mtime[50];
+
+    m_dup2(pipe_filenames[0], 0);
+    close(pipe_filenames[0]);
+    close(pipe_filenames[1]);
+    m_dup2(pipe_tarball[1], 1);
+    close(pipe_tarball[0]);
+    close(pipe_tarball[1]);
+
+    if (chdir(dir))
+      ohshite(_("failed to chdir to '%.255s'"), dir);
+
+    snprintf(mtime, sizeof(mtime), "@%jd", options->timestamp);
+
+    command_init(&cmd, TAR, "tar -cf");
+    command_add_args(&cmd, "tar", "-cf", "-", "--format=gnu",
+                           "--mtime", mtime, "--clamp-mtime", NULL);
+    /* Mode might become a positional argument, pass it before -T. */
+    if (options->mode)
+      command_add_args(&cmd, "--mode", options->mode, NULL);
+    if (options->root_owner_group)
+      command_add_args(&cmd, "--owner", "root:0", "--group", "root:0", NULL);
+    command_add_args(&cmd, "--null", "--no-unquote", "--no-recursion",
+                           "-T", "-", NULL);
+    command_exec(&cmd);
+  }
+  close(pipe_filenames[0]);
+  close(pipe_tarball[1]);
+
+  /* Of course we should not forget to compress the archive as well. */
+  pid_comp = subproc_fork();
+  if (pid_comp == 0) {
+    close(pipe_filenames[1]);
+    compress_filter(tar_compress_params, pipe_tarball[0], fd_out,
+                    _("compressing tar member"));
+    exit(0);
+  }
+  close(pipe_tarball[0]);
+
+  /* All the pipes are set, now lets start feeding filenames to tar. */
+  tar_filenames_feeder(dir, pipe_filenames[1]);
+
+  /* All done, clean up wait for tar and <compress> to finish their job. */
+  close(pipe_filenames[1]);
+  subproc_reap(pid_comp, _("<compress> from tar -cf"), 0);
+  subproc_reap(pid_tar, "tar -cf", 0);
+}
+
+static intmax_t
+parse_timestamp(const char *value)
+{
+  intmax_t timestamp;
+  char *end;
+
+  errno = 0;
+  timestamp = strtoimax(value, &end, 10);
+  if (value == end || *end || errno != 0)
+    ohshite(_("unable to parse timestamp '%.255s'"), value);
+
+  return timestamp;
+}
+
+/**
+ * Overly complex function that builds a .deb file.
+ */
+int
+do_build(const char *const *argv)
+{
+  struct compress_params control_compress_params;
+  struct tar_pack_options tar_options;
+  struct dpkg_error err;
+  struct dpkg_ar *ar;
+  intmax_t timestamp;
+  const char *timestamp_str;
+  const char *dir, *dest;
+  char *ctrldir;
+  char *debar;
+  char *tfbuf;
+  int gzfd;
+
+  /* Decode our arguments. */
+  dir = *argv++;
+  if (!dir)
+    badusage(_("--%s needs a <directory> argument"), cipaction->olong);
+
+  dest = *argv++;
+  if (dest && *argv)
+    badusage(_("--%s takes at most two arguments"), cipaction->olong);
+
+  debar = gen_dest_pathname(dir, dest);
+  ctrldir = str_fmt("%s/%s", dir, BUILDCONTROLDIR);
+
+  /* Perform some sanity checks on the to-be-build package. */
+  if (opt_nocheck) {
+    if (debar == NULL)
+      ohshit(_("target is directory - cannot skip control file check"));
+    warning(_("not checking contents of control area"));
+    info(_("building an unknown package in '%s'."), debar);
+  } else {
+    struct pkginfo *pkg;
+
+    pkg = check_control_area(ctrldir, dir);
+    if (debar == NULL)
+      debar = gen_dest_pathname_from_pkg(dest, pkg);
+    info(_("building package '%s' in '%s'."), pkg->set->name, debar);
+  }
+  m_output(stdout, _("<standard output>"));
+
+  timestamp_str = getenv("SOURCE_DATE_EPOCH");
+  if (timestamp_str)
+    timestamp = parse_timestamp(timestamp_str);
+  else
+    timestamp = time(NULL);
+
+  /* Now that we have verified everything it is time to actually
+   * build something. Let's start by making the ar-wrapper. */
+  ar = dpkg_ar_create(debar, 0644);
+
+  dpkg_ar_set_mtime(ar, timestamp);
+
+  unsetenv("TAR_OPTIONS");
+
+  /* Create a temporary file to store the control data in. Immediately
+   * unlink our temporary file so others can't mess with it. */
+  tfbuf = path_make_temp_template("dpkg-deb");
+  gzfd = mkstemp(tfbuf);
+  if (gzfd == -1)
+    ohshite(_("failed to make temporary file (%s)"), _("control member"));
+  /* Make sure it's gone, the fd will remain until we close it. */
+  if (unlink(tfbuf))
+    ohshit(_("failed to unlink temporary file (%s), %s"), _("control member"),
+           tfbuf);
+  free(tfbuf);
+
+  /* Select the compressor to use for our control archive. */
+  if (opt_uniform_compression) {
+    control_compress_params = compress_params;
+  } else {
+    control_compress_params = compress_params_deb0;
+
+    if (!compressor_check_params(&control_compress_params, &err))
+      internerr("invalid control member compressor params: %s", err.str);
+  }
+
+  /* Fork a tar to package the control-section of the package. */
+  tar_options.mode = "u+rw,go=rX";
+  tar_options.timestamp = timestamp;
+  tar_options.root_owner_group = true;
+  tarball_pack(ctrldir, control_treewalk_feed, &tar_options,
+               &control_compress_params, gzfd);
+
+  free(ctrldir);
+
+  if (lseek(gzfd, 0, SEEK_SET))
+    ohshite(_("failed to rewind temporary file (%s)"), _("control member"));
+
+  /* We have our first file for the ar-archive. Write a header for it
+   * to the package and insert it. */
+  if (deb_format.major == 0) {
+    struct stat controlstab;
+    char versionbuf[40];
+
+    if (fstat(gzfd, &controlstab))
+      ohshite(_("failed to stat temporary file (%s)"), _("control member"));
+    sprintf(versionbuf, "%-8s\n%jd\n", OLDARCHIVEVERSION,
+            (intmax_t)controlstab.st_size);
+    if (fd_write(ar->fd, versionbuf, strlen(versionbuf)) < 0)
+      ohshite(_("error writing '%s'"), debar);
+    if (fd_fd_copy(gzfd, ar->fd, -1, &err) < 0)
+      ohshit(_("cannot copy '%s' into archive '%s': %s"), _("control member"),
+             ar->name, err.str);
+  } else if (deb_format.major == 2) {
+    const char deb_magic[] = ARCHIVEVERSION "\n";
+    char adminmember[16 + 1];
+
+    sprintf(adminmember, "%s%s", ADMINMEMBER,
+            compressor_get_extension(control_compress_params.type));
+
+    dpkg_ar_put_magic(ar);
+    dpkg_ar_member_put_mem(ar, DEBMAGIC, deb_magic, strlen(deb_magic));
+    dpkg_ar_member_put_file(ar, adminmember, gzfd, -1);
+  } else {
+    internerr("unknown deb format version %d.%d", deb_format.major, deb_format.minor);
+  }
+
+  close(gzfd);
+
+  /* Control is done, now we need to archive the data. */
+  if (deb_format.major == 0) {
+    /* In old format, the data member is just concatenated after the
+     * control member, so we do not need a temporary file and can use
+     * the compression file descriptor. */
+    gzfd = ar->fd;
+  } else if (deb_format.major == 2) {
+    /* Start by creating a new temporary file. Immediately unlink the
+     * temporary file so others can't mess with it. */
+    tfbuf = path_make_temp_template("dpkg-deb");
+    gzfd = mkstemp(tfbuf);
+    if (gzfd == -1)
+      ohshite(_("failed to make temporary file (%s)"), _("data member"));
+    /* Make sure it's gone, the fd will remain until we close it. */
+    if (unlink(tfbuf))
+      ohshit(_("failed to unlink temporary file (%s), %s"), _("data member"),
+             tfbuf);
+    free(tfbuf);
+  } else {
+    internerr("unknown deb format version %d.%d", deb_format.major, deb_format.minor);
+  }
+
+  /* Pack the directory into a tarball, feeding files from the callback. */
+  tar_options.mode = NULL;
+  tar_options.timestamp = timestamp;
+  tar_options.root_owner_group = opt_root_owner_group;
+  tarball_pack(dir, file_treewalk_feed, &tar_options, &compress_params, gzfd);
+
+  /* Okay, we have data.tar as well now, add it to the ar wrapper. */
+  if (deb_format.major == 2) {
+    char datamember[16 + 1];
+
+    sprintf(datamember, "%s%s", DATAMEMBER,
+            compressor_get_extension(compress_params.type));
+
+    if (lseek(gzfd, 0, SEEK_SET))
+      ohshite(_("failed to rewind temporary file (%s)"), _("data member"));
+
+    dpkg_ar_member_put_file(ar, datamember, gzfd, -1);
+
+    close(gzfd);
+  }
+  if (fsync(ar->fd))
+    ohshite(_("unable to sync file '%s'"), ar->name);
+
+  dpkg_ar_close(ar);
+
+  free(debar);
+
+  return 0;
+}
diff --git a/src/deb/dpkg-deb.h b/src/deb/dpkg-deb.h
new file mode 100644
index 0000000..eafb5b7
--- /dev/null
+++ b/src/deb/dpkg-deb.h
@@ -0,0 +1,89 @@
+/*
+ * dpkg-deb - construction and deconstruction of *.deb archives
+ * dpkg-deb.h - external definitions for this program
+ *
+ * Copyright © 1994,1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2006-2012 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef DPKG_DEB_H
+#define DPKG_DEB_H
+
+#include <dpkg/deb-version.h>
+
+action_func do_build;
+action_func do_contents;
+action_func do_control;
+action_func do_showinfo;
+action_func do_info;
+action_func do_field;
+action_func do_extract;
+action_func do_vextract;
+action_func do_raw_extract;
+action_func do_ctrltarfile;
+action_func do_fsystarfile;
+
+extern int opt_verbose;
+extern int opt_root_owner_group;
+extern int opt_uniform_compression;
+extern int opt_debug;
+extern int opt_nocheck;
+extern const char *opt_showformat;
+
+extern struct deb_version deb_format;
+
+enum DPKG_ATTR_ENUM_FLAGS dpkg_tar_options {
+	/** Output the tar file directly, without any processing. */
+	DPKG_TAR_PASSTHROUGH = 0,
+	/** List tar files. */
+	DPKG_TAR_LIST = DPKG_BIT(0),
+	/** Extract tar files. */
+	DPKG_TAR_EXTRACT = DPKG_BIT(1),
+	/** Preserve tar permissions on extract. */
+	DPKG_TAR_PERMS = DPKG_BIT(2),
+	/** Do not set tar mtime on extract. */
+	DPKG_TAR_NOMTIME = DPKG_BIT(3),
+	/** Guarantee extraction into a new directory, abort if it exists. */
+	DPKG_TAR_CREATE_DIR = DPKG_BIT(4),
+};
+
+void extracthalf(const char *debar, const char *dir,
+                 enum dpkg_tar_options taroption, int admininfo);
+
+extern struct compress_params compress_params_deb0;
+extern struct compress_params compress_params;
+
+#define ARCHIVEVERSION		"2.0"
+
+#define BUILDCONTROLDIR		"DEBIAN"
+#define EXTRACTCONTROLDIR	BUILDCONTROLDIR
+
+#define OLDARCHIVEVERSION	"0.939000"
+
+#define OLDDEBDIR		"DEBIAN"
+#define OLDOLDDEBDIR		".DEBIAN"
+
+#define DEBMAGIC		"debian-binary"
+#define ADMINMEMBER		"control.tar"
+#define DATAMEMBER		"data.tar"
+
+#ifdef PATH_MAX
+# define INTERPRETER_MAX PATH_MAX
+#else
+# define INTERPRETER_MAX 1024
+#endif
+
+#endif /* DPKG_DEB_H */
diff --git a/src/deb/extract.c b/src/deb/extract.c
new file mode 100644
index 0000000..8b78a7e
--- /dev/null
+++ b/src/deb/extract.c
@@ -0,0 +1,508 @@
+/*
+ * dpkg-deb - construction and deconstruction of *.deb archives
+ * extract.c - extracting archives
+ *
+ * Copyright © 1994,1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2006-2014 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+
+#include <errno.h>
+#include <limits.h>
+#include <string.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/fdio.h>
+#include <dpkg/buffer.h>
+#include <dpkg/subproc.h>
+#include <dpkg/command.h>
+#include <dpkg/compress.h>
+#include <dpkg/ar.h>
+#include <dpkg/deb-version.h>
+#include <dpkg/options.h>
+
+#include "dpkg-deb.h"
+
+static void
+movecontrolfiles(const char *dir, const char *thing)
+{
+  char *cmd;
+  pid_t pid;
+
+  cmd = str_fmt("mv %s/%s/* %s/ && rmdir %s/%s", dir, thing, dir, dir, thing);
+  pid = subproc_fork();
+  if (pid == 0) {
+    command_shell(cmd, _("shell command to move files"));
+  }
+  subproc_reap(pid, _("shell command to move files"), 0);
+  free(cmd);
+}
+
+static void DPKG_ATTR_NORET
+read_fail(int rc, const char *filename, const char *what)
+{
+  if (rc >= 0)
+    ohshit(_("unexpected end of file in %s in %.255s"),what,filename);
+  else
+    ohshite(_("error reading %s from file %.255s"), what, filename);
+}
+
+static ssize_t
+read_line(int fd, char *buf, size_t min_size, size_t max_size)
+{
+  ssize_t line_size = 0;
+  size_t n = min_size;
+
+  while (line_size < (ssize_t)max_size) {
+    ssize_t nread;
+    char *nl;
+
+    nread = fd_read(fd, buf + line_size, n);
+    if (nread <= 0)
+      return nread;
+
+    nl = memchr(buf + line_size, '\n', nread);
+    line_size += nread;
+
+    if (nl != NULL) {
+      nl[1] = '\0';
+      return line_size;
+    }
+
+    n = 1;
+  }
+
+  buf[line_size] = '\0';
+  return line_size;
+}
+
+void
+extracthalf(const char *debar, const char *dir,
+            enum dpkg_tar_options taroption, int admininfo)
+{
+  struct dpkg_error err;
+  const char *errstr;
+  struct dpkg_ar *ar;
+  char versionbuf[40];
+  struct deb_version version;
+  off_t ctrllennum, memberlen = 0;
+  ssize_t rc;
+  int dummy;
+  pid_t c1=0,c2,c3;
+  int p1[2], p2[2];
+  int p2_out;
+  char nlc;
+  struct compress_params decompress_params = {
+    .type = COMPRESSOR_TYPE_GZIP,
+    .threads_max = compress_params.threads_max,
+  };
+
+  ar = dpkg_ar_open(debar);
+
+  rc = read_line(ar->fd, versionbuf, strlen(DPKG_AR_MAGIC), sizeof(versionbuf) - 1);
+  if (rc <= 0)
+    read_fail(rc, debar, _("archive magic version number"));
+
+  if (strcmp(versionbuf, DPKG_AR_MAGIC) == 0) {
+    int adminmember = -1;
+    bool header_done = false;
+
+    ctrllennum= 0;
+    for (;;) {
+      struct dpkg_ar_hdr arh;
+
+      rc = fd_read(ar->fd, &arh, sizeof(arh));
+      if (rc != sizeof(arh))
+        read_fail(rc, debar, _("archive member header"));
+
+      if (dpkg_ar_member_is_illegal(&arh))
+        ohshit(_("file '%.250s' is corrupt - bad archive header magic"), debar);
+
+      dpkg_ar_normalize_name(&arh);
+
+      memberlen = dpkg_ar_member_get_size(ar, &arh);
+      if (!header_done) {
+        char *infobuf;
+
+        if (strncmp(arh.ar_name, DEBMAGIC, sizeof(arh.ar_name)) != 0)
+          ohshit(_("file '%.250s' is not a Debian binary archive (try dpkg-split?)"),
+                 debar);
+        infobuf= m_malloc(memberlen+1);
+        rc = fd_read(ar->fd, infobuf, memberlen + (memberlen & 1));
+        if (rc != (memberlen + (memberlen & 1)))
+          read_fail(rc, debar, _("archive information header member"));
+        infobuf[memberlen] = '\0';
+
+        if (strchr(infobuf, '\n') == NULL)
+          ohshit(_("archive has no newlines in header"));
+        errstr = deb_version_parse(&version, infobuf);
+        if (errstr)
+          ohshit(_("archive has invalid format version: %s"), errstr);
+        if (version.major != 2)
+          ohshit(_("archive is format version %d.%d; get a newer dpkg-deb"),
+                 version.major, version.minor);
+
+        free(infobuf);
+
+        header_done = true;
+      } else if (arh.ar_name[0] == '_') {
+        /* Members with ‘_’ are noncritical, and if we don't understand
+         * them we skip them. */
+        if (fd_skip(ar->fd, memberlen + (memberlen & 1), &err) < 0)
+          ohshit(_("cannot skip archive member from '%s': %s"), ar->name, err.str);
+      } else {
+        if (strncmp(arh.ar_name, ADMINMEMBER, strlen(ADMINMEMBER)) == 0) {
+          const char *extension = arh.ar_name + strlen(ADMINMEMBER);
+
+	  adminmember = 1;
+          decompress_params.type = compressor_find_by_extension(extension);
+          if (decompress_params.type != COMPRESSOR_TYPE_NONE &&
+              decompress_params.type != COMPRESSOR_TYPE_GZIP &&
+              decompress_params.type != COMPRESSOR_TYPE_ZSTD &&
+              decompress_params.type != COMPRESSOR_TYPE_XZ)
+            ohshit(_("archive '%s' uses unknown compression for member '%.*s', "
+                     "giving up"),
+                   debar, (int)sizeof(arh.ar_name), arh.ar_name);
+
+          if (ctrllennum != 0)
+            ohshit(_("archive '%.250s' contains two control members, giving up"),
+                   debar);
+          ctrllennum = memberlen;
+        } else {
+          if (adminmember != 1)
+            ohshit(_("archive '%s' has premature member '%.*s' before '%s', "
+                     "giving up"),
+                   debar, (int)sizeof(arh.ar_name), arh.ar_name, ADMINMEMBER);
+
+	  if (strncmp(arh.ar_name, DATAMEMBER, strlen(DATAMEMBER)) == 0) {
+	    const char *extension = arh.ar_name + strlen(DATAMEMBER);
+
+	    adminmember= 0;
+            decompress_params.type = compressor_find_by_extension(extension);
+            if (decompress_params.type == COMPRESSOR_TYPE_UNKNOWN)
+              ohshit(_("archive '%s' uses unknown compression for member '%.*s', "
+                       "giving up"),
+                     debar, (int)sizeof(arh.ar_name), arh.ar_name);
+          } else {
+            ohshit(_("archive '%s' has premature member '%.*s' before '%s', "
+                     "giving up"),
+                   debar, (int)sizeof(arh.ar_name), arh.ar_name, DATAMEMBER);
+          }
+        }
+        if (!adminmember != !admininfo) {
+          if (fd_skip(ar->fd, memberlen + (memberlen & 1), &err) < 0)
+            ohshit(_("cannot skip archive member from '%s': %s"), ar->name, err.str);
+        } else {
+          /* Yes! - found it. */
+          break;
+        }
+      }
+    }
+
+    if (admininfo >= 2) {
+      printf(_(" new Debian package, version %d.%d.\n"
+               " size %jd bytes: control archive=%jd bytes.\n"),
+             version.major, version.minor,
+             (intmax_t)ar->size, (intmax_t)ctrllennum);
+      m_output(stdout, _("<standard output>"));
+    }
+  } else if (strncmp(versionbuf, "0.93", 4) == 0) {
+    char ctrllenbuf[40];
+    int l;
+
+    l = strlen(versionbuf);
+
+    if (strchr(versionbuf, '\n') == NULL)
+      ohshit(_("archive has no newlines in header"));
+    errstr = deb_version_parse(&version, versionbuf);
+    if (errstr)
+      ohshit(_("archive has invalid format version: %s"), errstr);
+
+    rc = read_line(ar->fd, ctrllenbuf, 1, sizeof(ctrllenbuf) - 1);
+    if (rc <= 0)
+      read_fail(rc, debar, _("archive control member size"));
+    if (sscanf(ctrllenbuf, "%jd%c%d", (intmax_t *)&ctrllennum, &nlc, &dummy) != 2 ||
+        nlc != '\n')
+      ohshit(_("archive has malformed control member size '%s'"), ctrllenbuf);
+
+    if (admininfo) {
+      memberlen = ctrllennum;
+    } else {
+      memberlen = ar->size - ctrllennum - strlen(ctrllenbuf) - l;
+      if (fd_skip(ar->fd, ctrllennum, &err) < 0)
+        ohshit(_("cannot skip archive control member from '%s': %s"), ar->name,
+               err.str);
+    }
+
+    if (admininfo >= 2) {
+      printf(_(" old Debian package, version %d.%d.\n"
+               " size %jd bytes: control archive=%jd, main archive=%jd.\n"),
+             version.major, version.minor,
+             (intmax_t)ar->size, (intmax_t)ctrllennum,
+             (intmax_t)(ar->size - ctrllennum - strlen(ctrllenbuf) - l));
+      m_output(stdout, _("<standard output>"));
+    }
+  } else {
+    if (strncmp(versionbuf, "!<arch>", 7) == 0) {
+      notice(_("file looks like it might be an archive which has been\n"
+               " corrupted by being downloaded in ASCII mode"));
+    }
+
+    ohshit(_("'%.255s' is not a Debian format archive"), debar);
+  }
+
+  m_pipe(p1);
+  c1 = subproc_fork();
+  if (!c1) {
+    close(p1[0]);
+    if (fd_fd_copy(ar->fd, p1[1], memberlen, &err) < 0)
+      ohshit(_("cannot copy archive member from '%s' to decompressor pipe: %s"),
+             ar->name, err.str);
+    if (close(p1[1]))
+      ohshite(_("cannot close decompressor pipe"));
+    exit(0);
+  }
+  close(p1[1]);
+
+  if (taroption) {
+    m_pipe(p2);
+    p2_out = p2[1];
+  } else {
+    p2_out = 1;
+  }
+
+  c2 = subproc_fork();
+  if (!c2) {
+    if (taroption)
+      close(p2[0]);
+    decompress_filter(&decompress_params, p1[0], p2_out,
+                      _("decompressing archive '%s' (size=%jd) member '%s'"),
+                      ar->name, (intmax_t)ar->size,
+                      admininfo ? ADMINMEMBER : DATAMEMBER);
+    dpkg_ar_close(ar);
+    exit(0);
+  }
+  close(p1[0]);
+  dpkg_ar_close(ar);
+
+  if (taroption) {
+    close(p2[1]);
+
+    c3 = subproc_fork();
+    if (!c3) {
+      struct command cmd;
+
+      command_init(&cmd, TAR, "tar");
+      command_add_arg(&cmd, "tar");
+
+      if ((taroption & DPKG_TAR_LIST) && (taroption & DPKG_TAR_EXTRACT))
+        command_add_arg(&cmd, "-xv");
+      else if (taroption & DPKG_TAR_EXTRACT)
+        command_add_arg(&cmd, "-x");
+      else if (taroption & DPKG_TAR_LIST)
+        command_add_arg(&cmd, "-tv");
+      else
+        internerr("unknown or missing tar action '%d'", taroption);
+
+      if (taroption & DPKG_TAR_PERMS)
+        command_add_arg(&cmd, "-p");
+      if (taroption & DPKG_TAR_NOMTIME)
+        command_add_arg(&cmd, "-m");
+
+      command_add_arg(&cmd, "-f");
+      command_add_arg(&cmd, "-");
+      command_add_arg(&cmd, "--warning=no-timestamp");
+
+      m_dup2(p2[0],0);
+      close(p2[0]);
+
+      unsetenv("TAR_OPTIONS");
+
+      if (dir) {
+        if (mkdir(dir, 0777) != 0) {
+          if (errno != EEXIST)
+            ohshite(_("failed to create directory"));
+
+          if (taroption & DPKG_TAR_CREATE_DIR)
+            ohshite(_("unexpected pre-existing pathname %s"), dir);
+        }
+        if (chdir(dir) != 0)
+          ohshite(_("failed to chdir to directory"));
+      }
+
+      command_exec(&cmd);
+    }
+    close(p2[0]);
+    subproc_reap(c3, "tar", 0);
+  }
+
+  subproc_reap(c2, _("<decompress>"), SUBPROC_NOPIPE);
+  if (c1 != -1)
+    subproc_reap(c1, _("paste"), 0);
+  if (version.major == 0 && admininfo) {
+    /* Handle the version as a float to preserve the behavior of old code,
+     * because even if the format is defined to be padded by 0's that might
+     * not have been always true for really ancient versions... */
+    while (version.minor && (version.minor % 10) == 0)
+      version.minor /= 10;
+
+    if (version.minor ==  931)
+      movecontrolfiles(dir, OLDOLDDEBDIR);
+    else if (version.minor == 932 || version.minor == 933)
+      movecontrolfiles(dir, OLDDEBDIR);
+  }
+}
+
+int
+do_ctrltarfile(const char *const *argv)
+{
+  const char *debar;
+
+  debar = *argv++;
+  if (debar == NULL)
+    badusage(_("--%s needs a .deb filename argument"), cipaction->olong);
+  if (*argv)
+    badusage(_("--%s takes only one argument (.deb filename)"),
+             cipaction->olong);
+
+  extracthalf(debar, NULL, DPKG_TAR_PASSTHROUGH, 1);
+
+  return 0;
+}
+
+int
+do_fsystarfile(const char *const *argv)
+{
+  const char *debar;
+
+  debar = *argv++;
+  if (debar == NULL)
+    badusage(_("--%s needs a .deb filename argument"),cipaction->olong);
+  if (*argv)
+    badusage(_("--%s takes only one argument (.deb filename)"),cipaction->olong);
+  extracthalf(debar, NULL, DPKG_TAR_PASSTHROUGH, 0);
+
+  return 0;
+}
+
+int
+do_control(const char *const *argv)
+{
+  const char *debar, *dir;
+
+  debar = *argv++;
+  if (debar == NULL)
+    badusage(_("--%s needs a .deb filename argument"), cipaction->olong);
+
+  dir = *argv++;
+  if (dir == NULL)
+    dir = EXTRACTCONTROLDIR;
+  else if (*argv)
+    badusage(_("--%s takes at most two arguments (.deb and directory)"),
+             cipaction->olong);
+
+  extracthalf(debar, dir, DPKG_TAR_EXTRACT, 1);
+
+  return 0;
+}
+
+int
+do_extract(const char *const *argv)
+{
+  const char *debar, *dir;
+  enum dpkg_tar_options options = DPKG_TAR_EXTRACT | DPKG_TAR_PERMS;
+
+  if (opt_verbose)
+    options |= DPKG_TAR_LIST;
+
+  debar = *argv++;
+  if (debar == NULL)
+    badusage(_("--%s needs .deb filename and directory arguments"),
+             cipaction->olong);
+
+  dir = *argv++;
+  if (dir == NULL)
+    badusage(_("--%s needs a target directory.\n"
+               "Perhaps you should be using dpkg --install ?"),
+             cipaction->olong);
+  else if (*argv)
+    badusage(_("--%s takes at most two arguments (.deb and directory)"),
+             cipaction->olong);
+
+  extracthalf(debar, dir, options, 0);
+
+  return 0;
+}
+
+int
+do_vextract(const char *const *argv)
+{
+  /* XXX: Backward compatibility. */
+  opt_verbose = 1;
+  return do_extract(argv);
+}
+
+int
+do_raw_extract(const char *const *argv)
+{
+  enum dpkg_tar_options data_options;
+  const char *debar, *dir;
+  char *control_dir;
+
+  debar = *argv++;
+  if (debar == NULL)
+    badusage(_("--%s needs .deb filename and directory arguments"),
+             cipaction->olong);
+  else if (strcmp(debar, "-") == 0)
+    badusage(_("--%s does not support (yet) reading the .deb from standard input"),
+             cipaction->olong);
+
+  dir = *argv++;
+  if (dir == NULL)
+    badusage(_("--%s needs a target directory.\n"
+               "Perhaps you should be using dpkg --install ?"),
+             cipaction->olong);
+  else if (*argv)
+    badusage(_("--%s takes at most two arguments (.deb and directory)"),
+             cipaction->olong);
+
+  control_dir = str_fmt("%s/%s", dir, EXTRACTCONTROLDIR);
+
+  data_options = DPKG_TAR_EXTRACT | DPKG_TAR_PERMS;
+  if (opt_verbose)
+    data_options |= DPKG_TAR_LIST;
+
+  extracthalf(debar, dir, data_options, 0);
+  extracthalf(debar, control_dir, DPKG_TAR_EXTRACT | DPKG_TAR_CREATE_DIR, 1);
+
+  free(control_dir);
+
+  return 0;
+}
diff --git a/src/deb/info.c b/src/deb/info.c
new file mode 100644
index 0000000..6598663
--- /dev/null
+++ b/src/deb/info.c
@@ -0,0 +1,341 @@
+/*
+ * dpkg-deb - construction and deconstruction of *.deb archives
+ * info.c - providing information
+ *
+ * Copyright © 1994,1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2001 Wichert Akkerman
+ * Copyright © 2007-2015 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+
+#include <errno.h>
+#include <limits.h>
+#include <string.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <unistd.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/c-ctype.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/parsedump.h>
+#include <dpkg/pkg-format.h>
+#include <dpkg/buffer.h>
+#include <dpkg/path.h>
+#include <dpkg/options.h>
+
+#include "dpkg-deb.h"
+
+static void cu_info_prepare(int argc, void **argv) {
+  char *dir;
+
+  dir = argv[0];
+  path_remove_tree(dir);
+  free(dir);
+}
+
+static void info_prepare(const char *const **argvp,
+                         const char **debarp,
+                         const char **dirp,
+                         int admininfo) {
+  char *dbuf;
+
+  *debarp= *(*argvp)++;
+  if (!*debarp) badusage(_("--%s needs a .deb filename argument"),cipaction->olong);
+
+  dbuf = mkdtemp(path_make_temp_template("dpkg-deb"));
+  if (!dbuf)
+    ohshite(_("unable to create temporary directory"));
+  *dirp = dbuf;
+
+  push_cleanup(cu_info_prepare, -1, 1, (void *)dbuf);
+  extracthalf(*debarp, dbuf, DPKG_TAR_EXTRACT | DPKG_TAR_NOMTIME, admininfo);
+}
+
+static int ilist_select(const struct dirent *de) {
+  return strcmp(de->d_name,".") && strcmp(de->d_name,"..");
+}
+
+static void
+info_spew(const char *debar, const char *dir, const char *const *argv)
+{
+  struct dpkg_error err;
+  const char *component;
+  struct varbuf controlfile = VARBUF_INIT;
+  int re= 0;
+
+  while ((component = *argv++) != NULL) {
+    int fd;
+
+    varbuf_reset(&controlfile);
+    varbuf_printf(&controlfile, "%s/%s", dir, component);
+
+    fd = open(controlfile.buf, O_RDONLY);
+    if (fd >= 0) {
+      if (fd_fd_copy(fd, 1, -1, &err) < 0)
+        ohshit(_("cannot extract control file '%s' from '%s': %s"),
+               controlfile.buf, debar, err.str);
+      close(fd);
+    } else if (errno == ENOENT) {
+      notice(_("'%.255s' contains no control component '%.255s'"),
+             debar, component);
+      re++;
+    } else {
+      ohshite(_("open component '%.255s' (in %.255s) failed in an unexpected way"),
+              component, dir);
+    }
+  }
+  varbuf_destroy(&controlfile);
+
+  if (re > 0)
+    ohshit(P_("%d requested control component is missing",
+              "%d requested control components are missing", re), re);
+}
+
+static char *
+info_interpreter(FILE *cc, int *lines)
+{
+  char interpreter[INTERPRETER_MAX + 1];
+  int c;
+
+  *lines = 0;
+  interpreter[0] = '\0';
+  if (getc(cc) == '#' && getc(cc) == '!') {
+    char *p;
+    int il;
+
+    while ((c = getc(cc)) == ' ')
+      ;
+    p = interpreter;
+    *p++ = '#';
+    *p++ = '!';
+    il = 2;
+    while (il < INTERPRETER_MAX && !c_isspace(c) && c != EOF) {
+      *p++ = c;
+      il++;
+      c = getc(cc);
+    }
+    *p = '\0';
+    if (c == '\n')
+      (*lines)++;
+  }
+  while ((c = getc(cc)) != EOF) {
+    if (c == '\n')
+      (*lines)++;
+  }
+
+  return m_strdup(interpreter);
+}
+
+static void
+info_list(const char *debar, const char *dir)
+{
+  struct varbuf controlfile = VARBUF_INIT;
+  struct dirent **cdlist;
+  int cdn, n;
+  FILE *cc;
+
+  cdn = scandir(dir, &cdlist, &ilist_select, alphasort);
+  if (cdn == -1)
+    ohshite(_("cannot scan directory '%.255s'"), dir);
+
+  for (n = 0; n < cdn; n++) {
+    struct dirent *cdep;
+    struct stat stab;
+
+    cdep = cdlist[n];
+
+    varbuf_reset(&controlfile);
+    varbuf_printf(&controlfile, "%s/%s", dir, cdep->d_name);
+
+    if (stat(controlfile.buf, &stab))
+      ohshite(_("cannot stat '%.255s' (in '%.255s')"), cdep->d_name, dir);
+    if (S_ISREG(stab.st_mode)) {
+      int exec_mark = (S_IXUSR & stab.st_mode) ? '*' : ' ';
+      char *interpreter;
+      int lines;
+
+      cc = fopen(controlfile.buf, "r");
+      if (!cc)
+        ohshite(_("cannot open '%.255s' (in '%.255s')"), cdep->d_name, dir);
+
+      interpreter = info_interpreter(cc, &lines);
+
+      if (ferror(cc))
+        ohshite(_("failed to read '%.255s' (in '%.255s')"), cdep->d_name, dir);
+      fclose(cc);
+      if (str_is_set(interpreter))
+        printf(_(" %7jd bytes, %5d lines   %c  %-20.127s %.127s\n"),
+               (intmax_t)stab.st_size, lines, exec_mark, cdep->d_name,
+               interpreter);
+      else
+        printf(_(" %7jd bytes, %5d lines   %c  %.127s\n"),
+               (intmax_t)stab.st_size, lines, exec_mark, cdep->d_name);
+
+      free(interpreter);
+    } else {
+      printf(_("     not a plain file          %.255s\n"), cdep->d_name);
+    }
+    free(cdep);
+  }
+  free(cdlist);
+
+  varbuf_reset(&controlfile);
+  varbuf_printf(&controlfile, "%s/%s", dir, CONTROLFILE);
+  cc = fopen(controlfile.buf, "r");
+  if (!cc) {
+    if (errno != ENOENT)
+      ohshite(_("failed to read '%.255s' (in '%.255s')"), CONTROLFILE, dir);
+    warning(_("no 'control' file in control archive!"));
+  } else {
+    int lines, c;
+
+    lines= 1;
+    while ((c= getc(cc))!= EOF) {
+      if (lines)
+        putc(' ', stdout);
+      putc(c, stdout);
+      lines= c=='\n';
+    }
+    if (!lines)
+      putc('\n', stdout);
+
+    if (ferror(cc))
+      ohshite(_("failed to read '%.255s' (in '%.255s')"), CONTROLFILE, dir);
+    fclose(cc);
+  }
+
+  m_output(stdout, _("<standard output>"));
+  varbuf_destroy(&controlfile);
+}
+
+static void
+info_field(const char *debar, const char *dir, const char *const *fields,
+           enum fwriteflags fieldflags)
+{
+  char *controlfile;
+  struct varbuf str = VARBUF_INIT;
+  struct pkginfo *pkg;
+  int i;
+
+  controlfile = str_fmt("%s/%s", dir, CONTROLFILE);
+  parsedb(controlfile, pdb_parse_binary | pdb_ignore_archives, &pkg);
+  free(controlfile);
+
+  for (i = 0; fields[i]; i++) {
+    const struct fieldinfo *field;
+
+    varbuf_reset(&str);
+    field = find_field_info(fieldinfos, fields[i]);
+    if (field) {
+      field->wcall(&str, pkg, &pkg->available, fieldflags, field);
+    } else {
+      const struct arbitraryfield *arbfield;
+
+      arbfield = find_arbfield_info(pkg->available.arbs, fields[i]);
+      if (arbfield)
+        varbuf_add_arbfield(&str, arbfield, fieldflags);
+    }
+    varbuf_end_str(&str);
+
+    if (fieldflags & fw_printheader)
+      printf("%s", str.buf);
+    else
+      printf("%s\n", str.buf);
+  }
+
+  m_output(stdout, _("<standard output>"));
+
+  varbuf_destroy(&str);
+}
+
+int
+do_showinfo(const char *const *argv)
+{
+  const char *debar, *dir;
+  char *controlfile;
+  struct dpkg_error err;
+  struct pkginfo *pkg;
+  struct pkg_format_node *fmt;
+
+  fmt = pkg_format_parse(opt_showformat, &err);
+  if (!fmt)
+    ohshit(_("error in show format: %s"), err.str);
+
+  info_prepare(&argv, &debar, &dir, 1);
+
+  controlfile  = str_fmt("%s/%s", dir, CONTROLFILE);
+  parsedb(controlfile, pdb_parse_binary | pdb_ignore_archives, &pkg);
+  pkg_format_show(fmt, pkg, &pkg->available);
+  pkg_format_free(fmt);
+  free(controlfile);
+
+  return 0;
+}
+
+int
+do_info(const char *const *argv)
+{
+  const char *debar, *dir;
+
+  if (*argv && argv[1]) {
+    info_prepare(&argv, &debar, &dir, 1);
+    info_spew(debar, dir, argv);
+  } else {
+    info_prepare(&argv, &debar, &dir, 2);
+    info_list(debar, dir);
+  }
+
+  return 0;
+}
+
+int
+do_field(const char *const *argv)
+{
+  const char *debar, *dir;
+
+  info_prepare(&argv, &debar, &dir, 1);
+  if (*argv) {
+    info_field(debar, dir, argv, argv[1] != NULL ? fw_printheader : 0);
+  } else {
+    static const char *const controlonly[] = { CONTROLFILE, NULL };
+    info_spew(debar, dir, controlonly);
+  }
+
+  return 0;
+}
+
+int
+do_contents(const char *const *argv)
+{
+  const char *debar = *argv++;
+
+  if (debar == NULL || *argv)
+    badusage(_("--%s takes exactly one argument"), cipaction->olong);
+  extracthalf(debar, NULL, DPKG_TAR_LIST, 0);
+
+  return 0;
+}
diff --git a/src/deb/main.c b/src/deb/main.c
new file mode 100644
index 0000000..0217278
--- /dev/null
+++ b/src/deb/main.c
@@ -0,0 +1,325 @@
+/*
+ * dpkg-deb - construction and deconstruction of *.deb archives
+ * main.c - main program
+ *
+ * Copyright © 1994,1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2006-2014 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include <limits.h>
+#if HAVE_LOCALE_H
+#include <locale.h>
+#endif
+#include <errno.h>
+#include <string.h>
+#include <dirent.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <dpkg/macros.h>
+#include <dpkg/i18n.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/compress.h>
+#include <dpkg/options.h>
+
+#include "dpkg-deb.h"
+
+const char *opt_showformat = "${Package}\t${Version}\n";
+
+static int
+printversion(const char *const *argv)
+{
+  printf(_("Debian '%s' package archive backend version %s.\n"),
+         BACKEND, PACKAGE_RELEASE);
+  printf(_(
+"This is free software; see the GNU General Public License version 2 or\n"
+"later for copying conditions. There is NO warranty.\n"));
+
+  m_output(stdout, _("<standard output>"));
+
+  return 0;
+}
+
+static int
+usage(const char *const *argv)
+{
+  printf(_(
+"Usage: %s [<option>...] <command>\n"
+"\n"), BACKEND);
+
+  printf(_(
+"Commands:\n"
+"  -b|--build <directory> [<deb>]   Build an archive.\n"
+"  -c|--contents <deb>              List contents.\n"
+"  -I|--info <deb> [<cfile>...]     Show info to stdout.\n"
+"  -W|--show <deb>                  Show information on package(s)\n"
+"  -f|--field <deb> [<cfield>...]   Show field(s) to stdout.\n"
+"  -e|--control <deb> [<directory>] Extract control info.\n"
+"  -x|--extract <deb> <directory>   Extract files.\n"
+"  -X|--vextract <deb> <directory>  Extract & list files.\n"
+"  -R|--raw-extract <deb> <directory>\n"
+"                                   Extract control info and files.\n"
+"  --ctrl-tarfile <deb>             Output control tarfile.\n"
+"  --fsys-tarfile <deb>             Output filesystem tarfile.\n"
+"\n"));
+
+  printf(_(
+"  -?, --help                       Show this help message.\n"
+"      --version                    Show the version.\n"
+"\n"));
+
+  printf(_(
+"<deb> is the filename of a Debian format archive.\n"
+"<cfile> is the name of an administrative file component.\n"
+"<cfield> is the name of a field in the main 'control' file.\n"
+"\n"));
+
+  printf(_(
+"Options:\n"
+"  -v, --verbose                    Enable verbose output.\n"
+"  -D, --debug                      Enable debugging output.\n"
+"      --showformat=<format>        Use alternative format for --show.\n"
+"      --deb-format=<format>        Select archive format.\n"
+"                                     Allowed values: 0.939000, 2.0 (default).\n"
+"      --nocheck                    Suppress control file check (build bad\n"
+"                                     packages).\n"
+"      --root-owner-group           Forces the owner and groups to root.\n"
+"      --threads-max=<threads>      Use at most <threads> with compressor.\n"
+"      --[no-]uniform-compression   Use the compression params on all members.\n"
+"  -z#                              Set the compression level when building.\n"
+"  -Z<type>                         Set the compression type used when building.\n"
+"                                     Allowed types: gzip, xz, zstd, none.\n"
+"  -S<strategy>                     Set the compression strategy when building.\n"
+"                                     Allowed values: none; extreme (xz);\n"
+"                                     filtered, huffman, rle, fixed (gzip).\n"
+"\n"));
+
+  printf(_(
+"Format syntax:\n"
+"  A format is a string that will be output for each package. The format\n"
+"  can include the standard escape sequences \\n (newline), \\r (carriage\n"
+"  return) or \\\\ (plain backslash). Package information can be included\n"
+"  by inserting variable references to package fields using the ${var[;width]}\n"
+"  syntax. Fields will be right-aligned unless the width is negative in which\n"
+"  case left alignment will be used.\n"));
+
+  printf(_(
+"\n"
+"Use 'dpkg' to install and remove packages from your system, or\n"
+"'apt' or 'aptitude' for user-friendly package management. Packages\n"
+"unpacked using 'dpkg-deb --extract' will be incorrectly installed !\n"));
+
+  m_output(stdout, _("<standard output>"));
+
+  return 0;
+}
+
+static const char printforhelp[] =
+  N_("Type dpkg-deb --help for help about manipulating *.deb files;\n"
+     "Type dpkg --help for help about installing and deinstalling packages.");
+
+int opt_debug = 0;
+int opt_nocheck = 0;
+int opt_verbose = 0;
+int opt_root_owner_group = 0;
+int opt_uniform_compression = 1;
+
+struct deb_version deb_format = DEB_VERSION(2, 0);
+
+static void
+set_deb_format(const struct cmdinfo *cip, const char *value)
+{
+  const char *err;
+
+  err = deb_version_parse(&deb_format, value);
+  if (err)
+    badusage(_("invalid deb format version: %s"), err);
+
+  if ((deb_format.major == 2 && deb_format.minor == 0) ||
+      (deb_format.major == 0 && deb_format.minor == 939000))
+    return;
+  else
+    badusage(_("unknown deb format version: %s"), value);
+}
+
+struct compress_params compress_params_deb0 = {
+  .type = COMPRESSOR_TYPE_GZIP,
+  .strategy = COMPRESSOR_STRATEGY_NONE,
+  .level = -1,
+  .threads_max = -1,
+};
+
+struct compress_params compress_params = {
+  .type = DEB_DEFAULT_COMPRESSOR,
+  .strategy = COMPRESSOR_STRATEGY_NONE,
+  .level = -1,
+  .threads_max = -1,
+};
+
+static long
+parse_compress_level(const char *str)
+{
+  long value;
+  char *end;
+
+  errno = 0;
+  value = strtol(str, &end, 10);
+  if (str == end || *end != '\0' || errno != 0)
+    return 0;
+
+  return value;
+}
+
+static void
+set_compress_level(const struct cmdinfo *cip, const char *value)
+{
+  compress_params.level = dpkg_options_parse_arg_int(cip, value);
+}
+
+static void
+set_compress_strategy(const struct cmdinfo *cip, const char *value)
+{
+  compress_params.strategy = compressor_get_strategy(value);
+  if (compress_params.strategy == COMPRESSOR_STRATEGY_UNKNOWN)
+    badusage(_("unknown compression strategy '%s'!"), value);
+}
+
+static enum compressor_type
+parse_compress_type(const char *value)
+{
+  enum compressor_type type;
+
+  type = compressor_find_by_name(value);
+  if (type == COMPRESSOR_TYPE_UNKNOWN)
+    badusage(_("unknown compression type '%s'!"), value);
+  if (type == COMPRESSOR_TYPE_LZMA)
+    badusage(_("obsolete compression type '%s'; use xz instead"), value);
+  if (type == COMPRESSOR_TYPE_BZIP2)
+    badusage(_("obsolete compression type '%s'; use xz or gzip instead"), value);
+
+  return type;
+}
+
+static void
+set_compress_type(const struct cmdinfo *cip, const char *value)
+{
+  compress_params.type = parse_compress_type(value);
+}
+
+static long
+parse_threads_max(const char *str)
+{
+  long value;
+  char *end;
+
+  errno = 0;
+  value = strtol(str, &end, 10);
+  if (str == end || *end != '\0' || errno != 0)
+    return 0;
+
+  return value;
+}
+
+static void
+set_threads_max(const struct cmdinfo *cip, const char *value)
+{
+  compress_params.threads_max = dpkg_options_parse_arg_int(cip, value);
+}
+
+static const struct cmdinfo cmdinfos[]= {
+  ACTION("build",         'b', 0, do_build),
+  ACTION("contents",      'c', 0, do_contents),
+  ACTION("control",       'e', 0, do_control),
+  ACTION("info",          'I', 0, do_info),
+  ACTION("field",         'f', 0, do_field),
+  ACTION("extract",       'x', 0, do_extract),
+  ACTION("vextract",      'X', 0, do_vextract),
+  ACTION("raw-extract",   'R', 0, do_raw_extract),
+  ACTION("ctrl-tarfile",  0,   0, do_ctrltarfile),
+  ACTION("fsys-tarfile",  0,   0, do_fsystarfile),
+  ACTION("show",          'W', 0, do_showinfo),
+  ACTION("help",          '?', 0, usage),
+  ACTION("version",       0,   0, printversion),
+
+  { "deb-format",    0,   1, NULL,           NULL,         set_deb_format   },
+  { "debug",         'D', 0, &opt_debug,     NULL,         NULL,          1 },
+  { "verbose",       'v', 0, &opt_verbose,   NULL,         NULL,          1 },
+  { "nocheck",       0,   0, &opt_nocheck,   NULL,         NULL,          1 },
+  { "root-owner-group",    0, 0, &opt_root_owner_group,    NULL, NULL,    1 },
+  { "threads-max",   0,   1, NULL,           NULL,         set_threads_max  },
+  { "uniform-compression", 0, 0, &opt_uniform_compression, NULL, NULL,    1 },
+  { "no-uniform-compression", 0, 0, &opt_uniform_compression, NULL, NULL, 0 },
+  { NULL,            'z', 1, NULL,           NULL,         set_compress_level },
+  { NULL,            'Z', 1, NULL,           NULL,         set_compress_type  },
+  { NULL,            'S', 1, NULL,           NULL,         set_compress_strategy },
+  { "showformat",    0,   1, NULL,           &opt_showformat,  NULL         },
+  {  NULL,           0,   0, NULL,           NULL,         NULL             }
+};
+
+int main(int argc, const char *const *argv) {
+  struct dpkg_error err;
+  char *env;
+  int ret;
+
+  dpkg_locales_init(PACKAGE);
+  dpkg_program_init(BACKEND);
+  /* XXX: Integrate this into options initialization/parsing. */
+  env = getenv("DPKG_DEB_THREADS_MAX");
+  if (str_is_set(env))
+    compress_params.threads_max = parse_threads_max(env);
+  env = getenv("DPKG_DEB_COMPRESSOR_TYPE");
+  if (str_is_set(env))
+    compress_params.type = parse_compress_type(env);
+  env = getenv("DPKG_DEB_COMPRESSOR_LEVEL");
+  if (str_is_set(env))
+    compress_params.level = parse_compress_level(env);
+  dpkg_options_parse(&argv, cmdinfos, printforhelp);
+
+  if (!cipaction) badusage(_("need an action option"));
+
+  if (!compressor_check_params(&compress_params, &err))
+    badusage(_("invalid compressor parameters: %s"), err.str);
+
+  if (!opt_uniform_compression && deb_format.major == 0)
+    badusage(_("unsupported deb format '%d.%d' with non-uniform compression"),
+             deb_format.major, deb_format.minor);
+
+  if (deb_format.major == 0)
+    compress_params = compress_params_deb0;
+
+  if (opt_uniform_compression &&
+      (compress_params.type != COMPRESSOR_TYPE_NONE &&
+       compress_params.type != COMPRESSOR_TYPE_GZIP &&
+       compress_params.type != COMPRESSOR_TYPE_ZSTD &&
+       compress_params.type != COMPRESSOR_TYPE_XZ))
+    badusage(_("unsupported compression type '%s' with uniform compression"),
+             compressor_get_name(compress_params.type));
+
+  ret = cipaction->action(argv);
+
+  dpkg_program_done();
+  dpkg_locales_done();
+
+  return ret;
+}
diff --git a/src/divert/main.c b/src/divert/main.c
new file mode 100644
index 0000000..23a0cd0
--- /dev/null
+++ b/src/divert/main.c
@@ -0,0 +1,884 @@
+/*
+ * dpkg-divert - override a package's version of a file
+ *
+ * Copyright © 1995 Ian Jackson
+ * Copyright © 2000, 2001 Wichert Akkerman
+ * Copyright © 2006-2015, 2017-2018 Guillem Jover <guillem@debian.org>
+ * Copyright © 2011 Linaro Limited
+ * Copyright © 2011 Raphaël Hertzog <hertzog@debian.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <errno.h>
+#if HAVE_LOCALE_H
+#include <locale.h>
+#endif
+#include <fcntl.h>
+#include <fnmatch.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/debug.h>
+#include <dpkg/arch.h>
+#include <dpkg/file.h>
+#include <dpkg/glob.h>
+#include <dpkg/buffer.h>
+#include <dpkg/options.h>
+#include <dpkg/db-fsys.h>
+
+
+static const char printforhelp[] = N_(
+"Use --help for help about diverting files.");
+
+static bool opt_pkgname_match_any = true;
+static const char *opt_pkgname = NULL;
+static const char *opt_divertto = NULL;
+
+static int opt_verbose = 1;
+static int opt_test = 0;
+static int opt_rename = -1;
+
+
+static int
+printversion(const char *const *argv)
+{
+	printf(_("Debian %s version %s.\n"), dpkg_get_progname(),
+	       PACKAGE_RELEASE);
+
+	printf(_(
+"This is free software; see the GNU General Public License version 2 or\n"
+"later for copying conditions. There is NO warranty.\n"));
+
+	m_output(stdout, _("<standard output>"));
+
+	return 0;
+}
+
+static int
+usage(const char *const *argv)
+{
+	printf(_(
+"Usage: %s [<option>...] <command>\n"
+"\n"), dpkg_get_progname());
+
+	printf(_(
+"Commands:\n"
+"  [--add] <file>           add a diversion.\n"
+"  --remove <file>          remove the diversion.\n"
+"  --list [<glob-pattern>]  show file diversions.\n"
+"  --listpackage <file>     show what package diverts the file.\n"
+"  --truename <file>        return the diverted file.\n"
+"\n"));
+
+	printf(_(
+"Options:\n"
+"  --package <package>      name of the package whose copy of <file> will not\n"
+"                             be diverted.\n"
+"  --local                  all packages' versions are diverted.\n"
+"  --divert <divert-to>     the name used by other packages' versions.\n"
+"  --rename                 actually move the file aside (or back).\n"
+"  --no-rename              do not move the file aside (or back) (default).\n"
+"  --admindir <directory>   set the directory with the diversions file.\n"
+"  --instdir <directory>    set the root directory, but not the admin dir.\n"
+"  --root <directory>       set the directory of the root filesystem.\n"
+"  --test                   don't do anything, just demonstrate.\n"
+"  --quiet                  quiet operation, minimal output.\n"
+"  --help                   show this help message.\n"
+"  --version                show the version.\n"
+"\n"));
+
+	printf(_(
+"When adding, default is --local and --divert <original>.distrib.\n"
+"When removing, --package or --local and --divert must match if specified.\n"
+"Package preinst/postrm scripts should always specify --package and --divert.\n"));
+
+	m_output(stdout, _("<standard output>"));
+
+	return 0;
+}
+
+static void
+opt_rename_setup(void)
+{
+	if (opt_rename >= 0)
+		return;
+
+	opt_rename = 0;
+	warning(_("please specify --no-rename explicitly, the default "
+	          "will change to --rename in 1.20.x"));
+}
+
+struct file {
+	char *name;
+	enum {
+		FILE_STAT_INVALID,
+		FILE_STAT_VALID,
+		FILE_STAT_NOFILE,
+	} stat_state;
+	struct stat stat;
+};
+
+static void
+file_init(struct file *f, const char *filename)
+{
+	struct varbuf usefilename = VARBUF_INIT;
+
+	varbuf_add_str(&usefilename, dpkg_fsys_get_dir());
+	varbuf_add_str(&usefilename, filename);
+	varbuf_end_str(&usefilename);
+
+	f->name = varbuf_detach(&usefilename);
+	f->stat_state = FILE_STAT_INVALID;
+}
+
+static void
+file_destroy(struct file *f)
+{
+	free(f->name);
+}
+
+static void
+file_stat(struct file *f)
+{
+	int ret;
+
+	if (f->stat_state != FILE_STAT_INVALID)
+		return;
+
+	ret = lstat(f->name, &f->stat);
+	if (ret && errno != ENOENT)
+		ohshite(_("cannot stat file '%s'"), f->name);
+
+	if (ret == 0)
+		f->stat_state = FILE_STAT_VALID;
+	else
+		f->stat_state = FILE_STAT_NOFILE;
+}
+
+static void
+check_writable_dir(struct file *f)
+{
+	char *tmpname;
+	int tmpfd;
+
+	tmpname = str_fmt("%s%s", f->name, ".dpkg-divert.tmp");
+
+	tmpfd = creat(tmpname, 0600);
+	if (tmpfd < 0)
+		ohshite(_("error checking '%s'"), f->name);
+	close(tmpfd);
+	(void)unlink(tmpname);
+
+	free(tmpname);
+}
+
+static bool
+check_rename(struct file *src, struct file *dst)
+{
+	file_stat(src);
+
+	/* If the source file is not present and we are not going to do
+	 * the rename anyway there's no point in checking any further. */
+	if (src->stat_state == FILE_STAT_NOFILE)
+		return false;
+
+	file_stat(dst);
+
+	/*
+	 * Unfortunately we have to check for write access in both places,
+	 * just having +w is not enough, since people do mount things RO,
+	 * and we need to fail before we start mucking around with things.
+	 * So we open a file with the same name as the diversions but with
+	 * an extension that (hopefully) won't overwrite anything. If it
+	 * succeeds, we assume a writable filesystem.
+	 */
+
+	check_writable_dir(src);
+	check_writable_dir(dst);
+
+	if (src->stat_state == FILE_STAT_VALID &&
+	    dst->stat_state == FILE_STAT_VALID &&
+	    !(src->stat.st_dev == dst->stat.st_dev &&
+	      src->stat.st_ino == dst->stat.st_ino))
+		ohshit(_("rename involves overwriting '%s' with\n"
+		         "  different file '%s', not allowed"),
+		        dst->name, src->name);
+
+	return true;
+}
+
+static void
+file_copy(const char *src, const char *dst)
+{
+	struct dpkg_error err;
+	char *tmp;
+	int srcfd, dstfd;
+
+	srcfd = open(src, O_RDONLY);
+	if (srcfd < 0)
+		ohshite(_("unable to open file '%s'"), src);
+
+	tmp = str_fmt("%s%s", dst, ".dpkg-divert.tmp");
+	dstfd = creat(tmp, 0600);
+	if (dstfd < 0)
+		ohshite(_("unable to create file '%s'"), tmp);
+
+	push_cleanup(cu_filename, ~ehflag_normaltidy, 1, tmp);
+
+	if (fd_fd_copy(srcfd, dstfd, -1, &err) < 0)
+		ohshit(_("cannot copy '%s' to '%s': %s"), src, tmp, err.str);
+
+	close(srcfd);
+
+	if (fsync(dstfd))
+		ohshite(_("unable to sync file '%s'"), tmp);
+	if (close(dstfd))
+		ohshite(_("unable to close file '%s'"), tmp);
+
+	file_copy_perms(src, tmp);
+
+	if (rename(tmp, dst) != 0)
+		ohshite(_("cannot rename '%s' to '%s'"), tmp, dst);
+
+	free(tmp);
+
+	pop_cleanup(ehflag_normaltidy);
+}
+
+static void
+file_rename(struct file *src, struct file *dst)
+{
+	if (src->stat_state == FILE_STAT_NOFILE)
+		return;
+
+	if (dst->stat_state == FILE_STAT_VALID) {
+		if (unlink(src->name))
+			ohshite(_("rename: remove duplicate old link '%s'"),
+			        src->name);
+	} else {
+		if (rename(src->name, dst->name) == 0)
+			return;
+
+		/* If a rename didn't work try moving the file instead. */
+		file_copy(src->name, dst->name);
+
+		if (unlink(src->name))
+			ohshite(_("unable to remove copied source file '%s'"),
+			        src->name);
+	}
+}
+
+static void
+diversion_check_filename(const char *filename)
+{
+	if (filename[0] != '/')
+		badusage(_("filename \"%s\" is not absolute"), filename);
+	if (strchr(filename, '\n') != NULL)
+		badusage(_("file may not contain newlines"));
+}
+
+static const char *
+diversion_pkg_name(struct fsys_diversion *d)
+{
+	if (d->pkgset == NULL)
+		return ":";
+	else
+		return d->pkgset->name;
+}
+
+static const char *
+varbuf_diversion(struct varbuf *str, const char *pkgname,
+                 const char *filename, const char *divertto)
+{
+	varbuf_reset(str);
+
+	if (pkgname == NULL) {
+		if (divertto == NULL)
+			varbuf_printf(str, _("local diversion of %s"), filename);
+		else
+			varbuf_printf(str, _("local diversion of %s to %s"),
+			              filename, divertto);
+	} else {
+		if (divertto == NULL)
+			varbuf_printf(str, _("diversion of %s by %s"),
+			              filename, pkgname);
+		else
+			varbuf_printf(str, _("diversion of %s to %s by %s"),
+			              filename, divertto, pkgname);
+	}
+
+	return str->buf;
+}
+
+static const char *
+diversion_current(const char *filename)
+{
+	static struct varbuf str = VARBUF_INIT;
+
+	if (opt_pkgname_match_any) {
+		varbuf_reset(&str);
+
+		if (opt_divertto == NULL)
+			varbuf_printf(&str, _("any diversion of %s"), filename);
+		else
+			varbuf_printf(&str, _("any diversion of %s to %s"),
+			              filename, opt_divertto);
+	} else {
+		return varbuf_diversion(&str, opt_pkgname, filename, opt_divertto);
+	}
+
+	return str.buf;
+}
+
+static const char *
+diversion_describe(struct fsys_diversion *d)
+{
+	static struct varbuf str = VARBUF_INIT;
+	const char *pkgname;
+	const char *name_from, *name_to;
+
+	if (d->camefrom) {
+		name_from = d->camefrom->name;
+		name_to = d->camefrom->divert->useinstead->name;
+	} else {
+		name_from = d->useinstead->divert->camefrom->name;
+		name_to = d->useinstead->name;
+	}
+
+	if (d->pkgset == NULL)
+		pkgname = NULL;
+	else
+		pkgname = d->pkgset->name;
+
+	return varbuf_diversion(&str, pkgname, name_from, name_to);
+}
+
+static void
+divertdb_write(void)
+{
+	char *dbname;
+	struct atomic_file *file;
+	struct fsys_hash_iter *iter;
+	struct fsys_namenode *namenode;
+
+	dbname = dpkg_db_get_path(DIVERSIONSFILE);
+
+	file = atomic_file_new(dbname, ATOMIC_FILE_BACKUP);
+	atomic_file_open(file);
+
+	iter = fsys_hash_iter_new();
+	while ((namenode = fsys_hash_iter_next(iter))) {
+		struct fsys_diversion *d = namenode->divert;
+
+		if (d == NULL || d->useinstead == NULL)
+			continue;
+
+		fprintf(file->fp, "%s\n%s\n%s\n",
+		        d->useinstead->divert->camefrom->name,
+		        d->useinstead->name,
+		        diversion_pkg_name(d));
+	}
+	fsys_hash_iter_free(iter);
+
+	atomic_file_sync(file);
+	atomic_file_close(file);
+	atomic_file_commit(file);
+	atomic_file_free(file);
+
+	free(dbname);
+}
+
+static bool
+diversion_is_essential(struct fsys_namenode *namenode)
+{
+	struct pkginfo *pkg;
+	struct pkg_hash_iter *pkg_iter;
+	struct fsys_node_pkgs_iter *iter;
+	bool essential = false;
+
+	pkg_iter = pkg_hash_iter_new();
+	while ((pkg = pkg_hash_iter_next_pkg(pkg_iter))) {
+		if (pkg->installed.essential)
+			ensure_packagefiles_available(pkg);
+	}
+	pkg_hash_iter_free(pkg_iter);
+
+	iter = fsys_node_pkgs_iter_new(namenode);
+	while ((pkg = fsys_node_pkgs_iter_next(iter))) {
+		if (pkg->installed.essential) {
+			essential = true;
+			break;
+		}
+	}
+	fsys_node_pkgs_iter_free(iter);
+
+	return essential;
+}
+
+static bool
+diversion_is_owned_by_self(struct pkgset *set, struct fsys_namenode *namenode)
+{
+	struct pkginfo *pkg;
+	struct fsys_node_pkgs_iter *iter;
+	bool owned = false;
+
+	if (set == NULL)
+		return false;
+
+	for (pkg = &set->pkg; pkg; pkg = pkg->arch_next)
+		ensure_packagefiles_available(pkg);
+
+	iter = fsys_node_pkgs_iter_new(namenode);
+	while ((pkg = fsys_node_pkgs_iter_next(iter))) {
+		if (pkg->set == set) {
+			owned = true;
+			break;
+		}
+	}
+	fsys_node_pkgs_iter_free(iter);
+
+	return owned;
+}
+
+static int
+diversion_add(const char *const *argv)
+{
+	const char *filename = argv[0];
+	struct file file_from, file_to;
+	struct fsys_diversion *contest, *altname;
+	struct fsys_namenode *fnn_from, *fnn_to;
+	struct pkgset *pkgset;
+
+	opt_pkgname_match_any = false;
+	opt_rename_setup();
+
+	/* Handle filename. */
+	if (!filename || argv[1])
+		badusage(_("--%s needs a single argument"), cipaction->olong);
+
+	diversion_check_filename(filename);
+
+	modstatdb_open(msdbrw_readonly);
+	ensure_diversions();
+
+	file_init(&file_from, filename);
+	file_stat(&file_from);
+
+	if (file_from.stat_state == FILE_STAT_VALID &&
+	    S_ISDIR(file_from.stat.st_mode))
+		badusage(_("cannot divert directories"));
+
+	fnn_from = fsys_hash_find_node(filename, FHFF_NONE);
+
+	/* Handle divertto. */
+	if (opt_divertto == NULL)
+		opt_divertto = str_fmt("%s.distrib", filename);
+
+	if (strcmp(filename, opt_divertto) == 0)
+		badusage(_("cannot divert file '%s' to itself"), filename);
+
+	file_init(&file_to, opt_divertto);
+
+	fnn_to = fsys_hash_find_node(opt_divertto, FHFF_NONE);
+
+	/* Handle package name. */
+	if (opt_pkgname == NULL)
+		pkgset = NULL;
+	else
+		pkgset = pkg_hash_find_set(opt_pkgname);
+
+	/* Check we are not stomping over an existing diversion. */
+	if (fnn_from->divert || fnn_to->divert) {
+		if (fnn_to->divert && fnn_to->divert->camefrom &&
+		    strcmp(fnn_to->divert->camefrom->name, filename) == 0 &&
+		    fnn_from->divert && fnn_from->divert->useinstead &&
+		    strcmp(fnn_from->divert->useinstead->name, opt_divertto) == 0 &&
+		    fnn_from->divert->pkgset == pkgset) {
+			if (opt_verbose > 0)
+				printf(_("Leaving '%s'\n"),
+				       diversion_describe(fnn_from->divert));
+
+			file_destroy(&file_from);
+			file_destroy(&file_to);
+
+			modstatdb_shutdown();
+
+			return 0;
+		}
+
+		ohshit(_("'%s' clashes with '%s'"),
+		       diversion_current(filename),
+		       fnn_from->divert ?
+		       diversion_describe(fnn_from->divert) :
+		       diversion_describe(fnn_to->divert));
+	}
+
+	/* Create new diversion. */
+	contest = nfmalloc(sizeof(*contest));
+	altname = nfmalloc(sizeof(*altname));
+
+	altname->camefrom = fnn_from;
+	altname->camefrom->divert = contest;
+	altname->useinstead = NULL;
+	altname->pkgset = pkgset;
+
+	contest->useinstead = fnn_to;
+	contest->useinstead->divert = altname;
+	contest->camefrom = NULL;
+	contest->pkgset = pkgset;
+
+	/* Update database and file system if needed. */
+	if (opt_verbose > 0)
+		printf(_("Adding '%s'\n"), diversion_describe(contest));
+	if (opt_rename)
+		opt_rename = check_rename(&file_from, &file_to);
+	/* Check we are not renaming a file owned by the diverting pkgset. */
+	if (opt_rename && diversion_is_owned_by_self(pkgset, fnn_from)) {
+		if (opt_verbose > 0)
+			printf(_("Ignoring request to rename file '%s' "
+			         "owned by diverting package '%s'\n"),
+			       filename, pkgset->name);
+		opt_rename = false;
+	}
+	if (opt_rename && diversion_is_essential(fnn_from))
+		warning(_("diverting file '%s' from an Essential package with "
+		          "rename is dangerous, use --no-rename"), filename);
+	if (!opt_test) {
+		divertdb_write();
+		if (opt_rename)
+			file_rename(&file_from, &file_to);
+	}
+
+	file_destroy(&file_from);
+	file_destroy(&file_to);
+
+	modstatdb_shutdown();
+
+	return 0;
+}
+
+static bool
+diversion_is_shared(struct pkgset *set, struct fsys_namenode *namenode)
+{
+	const char *archname;
+	struct pkginfo *pkg;
+	struct dpkg_arch *arch;
+	struct fsys_node_pkgs_iter *iter;
+	bool shared = false;
+
+	if (set == NULL)
+		return false;
+
+	archname = getenv("DPKG_MAINTSCRIPT_ARCH");
+	arch = dpkg_arch_find(archname);
+	if (arch->type == DPKG_ARCH_NONE || arch->type == DPKG_ARCH_EMPTY)
+		return false;
+
+	for (pkg = &set->pkg; pkg; pkg = pkg->arch_next)
+		ensure_packagefiles_available(pkg);
+
+	iter = fsys_node_pkgs_iter_new(namenode);
+	while ((pkg = fsys_node_pkgs_iter_next(iter))) {
+		if (pkg->set == set && pkg->installed.arch != arch) {
+			shared = true;
+			break;
+		}
+	}
+	fsys_node_pkgs_iter_free(iter);
+
+	return shared;
+}
+
+static int
+diversion_remove(const char *const *argv)
+{
+	const char *filename = argv[0];
+	struct fsys_namenode *namenode;
+	struct fsys_diversion *contest, *altname;
+	struct file file_from, file_to;
+	struct pkgset *pkgset;
+
+	opt_rename_setup();
+
+	if (!filename || argv[1])
+		badusage(_("--%s needs a single argument"), cipaction->olong);
+
+	diversion_check_filename(filename);
+
+	modstatdb_open(msdbrw_readonly);
+	ensure_diversions();
+
+	namenode = fsys_hash_find_node(filename, FHFF_NO_NEW);
+
+	if (namenode == NULL || namenode->divert == NULL ||
+	    namenode->divert->useinstead == NULL) {
+		if (opt_verbose > 0)
+			printf(_("No diversion '%s', none removed.\n"),
+			       diversion_current(filename));
+		modstatdb_shutdown();
+		return 0;
+	}
+
+	if (opt_pkgname == NULL)
+		pkgset = NULL;
+	else
+		pkgset = pkg_hash_find_set(opt_pkgname);
+
+	contest = namenode->divert;
+	altname = contest->useinstead->divert;
+
+	if (opt_divertto != NULL &&
+	    strcmp(opt_divertto, contest->useinstead->name) != 0)
+		ohshit(_("mismatch on divert-to\n"
+		         "  when removing '%s'\n"
+		         "  found '%s'"),
+		       diversion_current(filename),
+		       diversion_describe(contest));
+
+	if (!opt_pkgname_match_any && pkgset != contest->pkgset)
+		ohshit(_("mismatch on package\n"
+		         "  when removing '%s'\n"
+		         "  found '%s'"),
+		       diversion_current(filename),
+		       diversion_describe(contest));
+
+	/* Ignore removal request if the diverted file is still owned
+	 * by another package in the same set. */
+	if (diversion_is_shared(pkgset, namenode)) {
+		if (opt_verbose > 0)
+			printf(_("Ignoring request to remove shared diversion '%s'.\n"),
+			       diversion_describe(contest));
+		modstatdb_shutdown();
+		return 0;
+	}
+
+	if (opt_verbose > 0)
+		printf(_("Removing '%s'\n"), diversion_describe(contest));
+
+	file_init(&file_from, altname->camefrom->name);
+	file_init(&file_to, contest->useinstead->name);
+
+	/* Remove entries from database. */
+	contest->useinstead->divert = NULL;
+	altname->camefrom->divert = NULL;
+
+	if (opt_rename)
+		opt_rename = check_rename(&file_to, &file_from);
+	if (opt_rename && !opt_test)
+		file_rename(&file_to, &file_from);
+
+	if (!opt_test)
+		divertdb_write();
+
+	file_destroy(&file_from);
+	file_destroy(&file_to);
+
+	modstatdb_shutdown();
+
+	return 0;
+}
+
+static int
+diversion_list(const char *const *argv)
+{
+	struct fsys_hash_iter *iter;
+	struct fsys_namenode *namenode;
+	struct glob_node *glob_list = NULL;
+	const char *pattern;
+
+	modstatdb_open(msdbrw_readonly);
+	ensure_diversions();
+
+	while ((pattern = *argv++))
+		glob_list_prepend(&glob_list, m_strdup(pattern));
+
+	if (glob_list == NULL)
+		glob_list_prepend(&glob_list, m_strdup("*"));
+
+	iter = fsys_hash_iter_new();
+	while ((namenode = fsys_hash_iter_next(iter))) {
+		struct glob_node *g;
+		struct fsys_diversion *contest = namenode->divert;
+		struct fsys_diversion *altname;
+		const char *pkgname;
+
+		if (contest == NULL || contest->useinstead == NULL)
+			continue;
+
+		altname = contest->useinstead->divert;
+
+		pkgname = diversion_pkg_name(contest);
+
+		for (g = glob_list; g; g = g->next) {
+			if (fnmatch(g->pattern, pkgname, 0) == 0 ||
+			    fnmatch(g->pattern, contest->useinstead->name, 0) == 0 ||
+			    fnmatch(g->pattern, altname->camefrom->name, 0) == 0) {
+				printf("%s\n", diversion_describe(contest));
+				break;
+			}
+		}
+	}
+	fsys_hash_iter_free(iter);
+
+	glob_list_free(glob_list);
+
+	modstatdb_shutdown();
+
+	return 0;
+}
+
+static int
+diversion_truename(const char *const *argv)
+{
+	const char *filename = argv[0];
+	struct fsys_namenode *namenode;
+
+	if (!filename || argv[1])
+		badusage(_("--%s needs a single argument"), cipaction->olong);
+
+	diversion_check_filename(filename);
+
+	modstatdb_open(msdbrw_readonly);
+	ensure_diversions();
+
+	namenode = fsys_hash_find_node(filename, FHFF_NO_NEW);
+
+	/* Print the given name if file is not diverted. */
+	if (namenode && namenode->divert && namenode->divert->useinstead)
+		printf("%s\n", namenode->divert->useinstead->name);
+	else
+		printf("%s\n", filename);
+
+	modstatdb_shutdown();
+
+	return 0;
+}
+
+static int
+diversion_listpackage(const char *const *argv)
+{
+	const char *filename = argv[0];
+	struct fsys_namenode *namenode;
+
+	if (!filename || argv[1])
+		badusage(_("--%s needs a single argument"), cipaction->olong);
+
+	diversion_check_filename(filename);
+
+	modstatdb_open(msdbrw_readonly);
+	ensure_diversions();
+
+	namenode = fsys_hash_find_node(filename, FHFF_NO_NEW);
+
+	/* Print nothing if file is not diverted. */
+	if (namenode == NULL || namenode->divert == NULL)
+		return 0;
+
+	if (namenode->divert->pkgset == NULL)
+		/* Indicate package is local using something not in package
+		 * namespace. */
+		printf("LOCAL\n");
+	else
+		printf("%s\n", namenode->divert->pkgset->name);
+
+	modstatdb_shutdown();
+
+	return 0;
+}
+
+static void
+set_package(const struct cmdinfo *cip, const char *value)
+{
+	opt_pkgname_match_any = false;
+
+	/* If value is NULL we are being called from --local. */
+	opt_pkgname = value;
+
+	if (opt_pkgname && strchr(opt_pkgname, '\n') != NULL)
+		badusage(_("package may not contain newlines"));
+}
+
+static void
+set_divertto(const struct cmdinfo *cip, const char *value)
+{
+	opt_divertto = value;
+
+	if (opt_divertto[0] != '/')
+		badusage(_("filename \"%s\" is not absolute"), opt_divertto);
+	if (strchr(opt_divertto, '\n') != NULL)
+		badusage(_("divert-to may not contain newlines"));
+}
+
+static const struct cmdinfo cmdinfo_add =
+	ACTION("add",         0, 0, diversion_add);
+
+static const struct cmdinfo cmdinfos[] = {
+	ACTION("add",         0, 0, diversion_add),
+	ACTION("remove",      0, 0, diversion_remove),
+	ACTION("list",        0, 0, diversion_list),
+	ACTION("listpackage", 0, 0, diversion_listpackage),
+	ACTION("truename",    0, 0, diversion_truename),
+	ACTION("help",        '?', 0, usage),
+	ACTION("version",     0,   0, printversion),
+
+	{ "admindir",   0,   1,  NULL,         NULL,      set_admindir, 0 },
+	{ "instdir",    0,   1,  NULL,         NULL,      set_instdir,  0 },
+	{ "root",       0,   1,  NULL,         NULL,      set_root,     0 },
+	{ "divert",     0,   1,  NULL,         NULL,      set_divertto  },
+	{ "package",    0,   1,  NULL,         NULL,      set_package   },
+	{ "local",      0,   0,  NULL,         NULL,      set_package   },
+	{ "quiet",      0,   0,  &opt_verbose, NULL,      NULL, 0       },
+	{ "rename",     0,   0,  &opt_rename,  NULL,      NULL, 1       },
+	{ "no-rename",  0,   0,  &opt_rename,  NULL,      NULL, 0       },
+	{ "test",       0,   0,  &opt_test,    NULL,      NULL, 1       },
+	{  NULL,        0                                               }
+};
+
+int
+main(int argc, const char * const *argv)
+{
+	const char *env_pkgname;
+	int ret;
+
+	dpkg_locales_init(PACKAGE);
+	dpkg_program_init("dpkg-divert");
+	dpkg_options_parse(&argv, cmdinfos, printforhelp);
+
+	debug(dbg_general, "root=%s admindir=%s", dpkg_fsys_get_dir(), dpkg_db_get_dir());
+
+	env_pkgname = getenv("DPKG_MAINTSCRIPT_PACKAGE");
+	if (opt_pkgname_match_any && env_pkgname)
+		set_package(NULL, env_pkgname);
+
+	if (!cipaction)
+		setaction(&cmdinfo_add, NULL);
+
+	ret = cipaction->action(argv);
+
+	dpkg_program_done();
+	dpkg_locales_done();
+
+	return ret;
+}
diff --git a/src/dpkg-db-backup.sh b/src/dpkg-db-backup.sh
new file mode 100755
index 0000000..619f489
--- /dev/null
+++ b/src/dpkg-db-backup.sh
@@ -0,0 +1,87 @@
+#!/bin/sh
+#
+# Copyright © 2014, 2017-2018, 2020-2021 Guillem Jover <guillem@debian.org>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+PROGNAME=$(basename "$0")
+ADMINDIR=/var/lib/dpkg
+BACKUPSDIR=/var/backups
+ROTATE=7
+
+PKGDATADIR_DEFAULT=src
+PKGDATADIR="${DPKG_DATADIR:-$PKGDATADIR_DEFAULT}"
+TAR="${TAR:-tar}"
+
+# shellcheck source=src/sh/dpkg-error.sh
+. "$PKGDATADIR/sh/dpkg-error.sh"
+
+setup_colors
+
+while [ $# -ne 0 ]; do
+  case "$1" in
+  --rotate=*)
+    ROTATE="${1#--rotate=}"
+    ;;
+  esac
+  shift
+done
+
+# Check for required commands availability.
+for cmd in "$TAR" savelog; do
+  if ! command -v "$cmd" >/dev/null; then
+    error "cannot find required program '$cmd'"
+  fi
+done
+
+dbdir="$ADMINDIR"
+
+# Backup the N last versions of dpkg databases containing user data.
+if cd $BACKUPSDIR ; then
+  # We backup all relevant database files if any has changed, so that
+  # the rotation number always contains an internally consistent set.
+  dbchanged=no
+  dbfiles="arch status diversions statoverride"
+  for db in $dbfiles ; do
+    if ! [ -s "dpkg.${db}.0" ] && ! [ -s "$dbdir/$db" ]; then
+      # Special case the files not existing or being empty as being equal.
+      continue
+    elif ! cmp -s "dpkg.${db}.0" "$dbdir/$db"; then
+      dbchanged=yes
+      break
+    fi
+  done
+  if [ "$dbchanged" = "yes" ] ; then
+    for db in $dbfiles ; do
+      if [ -e "$dbdir/$db" ]; then
+        cp -p "$dbdir/$db" "dpkg.$db"
+      else
+        touch "dpkg.$db"
+      fi
+      savelog -c "$ROTATE" "dpkg.$db" >/dev/null
+    done
+  fi
+
+  # The alternatives database is independent from the dpkg database.
+  dbalt=alternatives
+
+  # XXX: Ideally we'd use --warning=none instead of discarding stderr, but
+  # as of GNU tar 1.27.1, it does not seem to work reliably (see #749307).
+  if ! test -e ${dbalt}.tar.0 ||
+     ! $TAR -df ${dbalt}.tar.0 -C $dbdir $dbalt >/dev/null 2>&1 ;
+  then
+    $TAR -cf ${dbalt}.tar -C $dbdir $dbalt >/dev/null 2>&1
+    savelog -c "$ROTATE" ${dbalt}.tar >/dev/null
+  fi
+fi
diff --git a/src/dpkg-db-keeper.sh b/src/dpkg-db-keeper.sh
new file mode 100755
index 0000000..8c99a4c
--- /dev/null
+++ b/src/dpkg-db-keeper.sh
@@ -0,0 +1,59 @@
+#!/bin/sh
+#
+# Copyright © 2023 Guillem Jover <guillem@debian.org>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+PROGNAME=$(basename "$0")
+ADMINDIR=/var/lib/dpkg
+
+PKGDATADIR_DEFAULT=src
+PKGDATADIR="${DPKG_DATADIR:-$PKGDATADIR_DEFAULT}"
+
+# shellcheck source=src/sh/dpkg-error.sh
+. "$PKGDATADIR/sh/dpkg-error.sh"
+
+setup_colors
+
+# This script is used to track any change in the dpkg database for later
+# inspection, either as a matter of record tracking or to aid in debugging
+# dpkg behavior. It can be installed as a post-invoke hook such as:
+#
+# ,--- /etc/dpkg/dpkg.cfg.d/db-keeper ---
+# post-invoke "/usr/libexec/dpkg-db-keeper"
+# `---
+
+if [ -n "$DPKG_ROOT" ]; then
+  # Only operate on the main system.
+  exit 0
+fi
+
+if ! command -v git >/dev/null; then
+  # Do nothing if there is no git.
+  exit 0
+fi
+
+: "${DPKG_ADMINDIR:=/var/lib/dpkg}"
+
+cd "$DPKG_ADMINDIR" || exit 0
+
+if [ ! -e .git ]; then
+  # Initialize the git repo.
+  git init
+fi
+
+git add -A
+git commit -m 'Commit dpkg db updates'
+
+exit 0
diff --git a/src/dpkg-maintscript-helper.sh b/src/dpkg-maintscript-helper.sh
new file mode 100755
index 0000000..d799aa8
--- /dev/null
+++ b/src/dpkg-maintscript-helper.sh
@@ -0,0 +1,667 @@
+#!/bin/sh
+#
+# Copyright © 2007, 2011-2015 Guillem Jover <guillem@debian.org>
+# Copyright © 2010 Raphaël Hertzog <hertzog@debian.org>
+# Copyright © 2008 Joey Hess <joeyh@debian.org>
+# Copyright © 2005 Scott James Remnant (original implementation on www.dpkg.org)
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# The conffile related functions are inspired by
+# https://wiki.debian.org/DpkgConffileHandling
+
+# This script is documented in dpkg-maintscript-helper(1)
+
+##
+## Functions to remove an obsolete conffile during upgrade
+##
+rm_conffile() {
+  local CONFFILE="$1"
+  local LASTVERSION="$2"
+  local PACKAGE="$3"
+
+  if [ "$LASTVERSION" = "--" ]; then
+    LASTVERSION=""
+    PACKAGE="$DPKG_MAINTSCRIPT_PACKAGE${DPKG_MAINTSCRIPT_ARCH:+:$DPKG_MAINTSCRIPT_ARCH}"
+  fi
+  if [ "$PACKAGE" = "--" -o -z "$PACKAGE" ]; then
+    PACKAGE="$DPKG_MAINTSCRIPT_PACKAGE${DPKG_MAINTSCRIPT_ARCH:+:$DPKG_MAINTSCRIPT_ARCH}"
+  fi
+  # Skip remaining parameters up to --
+  while [ "$1" != "--" -a $# -gt 0 ]; do
+    shift
+  done
+  [ $# -gt 0 ] || badusage "missing arguments after --"
+  shift
+
+  [ -n "$PACKAGE" ] || error "couldn't identify the package"
+  [ -n "$1" ] || error "maintainer script parameters are missing"
+  [ -n "$DPKG_MAINTSCRIPT_NAME" ] || \
+    error "environment variable DPKG_MAINTSCRIPT_NAME is required"
+  [ -n "$DPKG_MAINTSCRIPT_PACKAGE" ] || \
+    error "environment variable DPKG_MAINTSCRIPT_PACKAGE is required"
+  [ "${CONFFILE}" != "${CONFFILE#/}" ] || \
+    error "conffile '$CONFFILE' is not an absolute path"
+  validate_optional_version "$LASTVERSION"
+
+  debug "Executing $0 rm_conffile in $DPKG_MAINTSCRIPT_NAME" \
+        "of $DPKG_MAINTSCRIPT_PACKAGE"
+  debug "CONFFILE=$CONFFILE PACKAGE=$PACKAGE" \
+        "LASTVERSION=$LASTVERSION ACTION=$1 PARAM=$2"
+  case "$DPKG_MAINTSCRIPT_NAME" in
+  preinst)
+    if [ "$1" = "install" -o "$1" = "upgrade" ] && [ -n "$2" ] &&
+       dpkg --compare-versions -- "$2" le-nl "$LASTVERSION"; then
+      prepare_rm_conffile "$CONFFILE" "$PACKAGE"
+    fi
+    ;;
+  postinst)
+    if [ "$1" = "configure" ] && [ -n "$2" ] &&
+       dpkg --compare-versions -- "$2" le-nl "$LASTVERSION"; then
+      finish_rm_conffile "$CONFFILE"
+    fi
+    ;;
+  postrm)
+    if [ "$1" = "purge" ]; then
+      rm -f "$DPKG_ROOT$CONFFILE.dpkg-bak" \
+            "$DPKG_ROOT$CONFFILE.dpkg-remove" \
+            "$DPKG_ROOT$CONFFILE.dpkg-backup"
+    fi
+    if [ "$1" = "abort-install" -o "$1" = "abort-upgrade" ] &&
+       [ -n "$2" ] &&
+       dpkg --compare-versions -- "$2" le-nl "$LASTVERSION"; then
+      abort_rm_conffile "$CONFFILE" "$PACKAGE"
+    fi
+    ;;
+  *)
+    debug "$0 rm_conffile not required in $DPKG_MAINTSCRIPT_NAME"
+    ;;
+  esac
+}
+
+prepare_rm_conffile() {
+  local CONFFILE="$1"
+  local PACKAGE="$2"
+
+  [ -e "$DPKG_ROOT$CONFFILE" ] || return 0
+  ensure_package_owns_file "$PACKAGE" "$CONFFILE" || return 0
+
+  local md5sum old_md5sum
+  md5sum="$(md5sum "$DPKG_ROOT$CONFFILE" | sed -e 's/ .*//')"
+  old_md5sum="$(dpkg-query -W -f='${Conffiles}' "$PACKAGE" | \
+    sed -n -e "\\'^ $CONFFILE ' { s/ obsolete$//; s/.* //; p }")"
+  if [ "$md5sum" != "$old_md5sum" ]; then
+    mv -f "$DPKG_ROOT$CONFFILE" "$DPKG_ROOT$CONFFILE.dpkg-backup"
+  else
+    mv -f "$DPKG_ROOT$CONFFILE" "$DPKG_ROOT$CONFFILE.dpkg-remove"
+  fi
+}
+
+finish_rm_conffile() {
+  local CONFFILE="$1"
+
+  if [ -e "$DPKG_ROOT$CONFFILE.dpkg-backup" ]; then
+    echo "Obsolete conffile $DPKG_ROOT$CONFFILE has been modified by you."
+    echo "Saving as $DPKG_ROOT$CONFFILE.dpkg-bak ..."
+    mv -f "$DPKG_ROOT$CONFFILE.dpkg-backup" "$DPKG_ROOT$CONFFILE.dpkg-bak"
+  fi
+  if [ -e "$DPKG_ROOT$CONFFILE.dpkg-remove" ]; then
+    echo "Removing obsolete conffile $DPKG_ROOT$CONFFILE ..."
+    rm -f "$DPKG_ROOT$CONFFILE.dpkg-remove"
+  fi
+}
+
+abort_rm_conffile() {
+  local CONFFILE="$1"
+  local PACKAGE="$2"
+
+  ensure_package_owns_file "$PACKAGE" "$CONFFILE" || return 0
+
+  if [ -e "$DPKG_ROOT$CONFFILE.dpkg-remove" ]; then
+    echo "Reinstalling $DPKG_ROOT$CONFFILE that was moved away"
+    mv "$DPKG_ROOT$CONFFILE.dpkg-remove" "$DPKG_ROOT$CONFFILE"
+  fi
+  if [ -e "$DPKG_ROOT$CONFFILE.dpkg-backup" ]; then
+    echo "Reinstalling $DPKG_ROOT$CONFFILE that was backed-up"
+    mv "$DPKG_ROOT$CONFFILE.dpkg-backup" "$DPKG_ROOT$CONFFILE"
+  fi
+}
+
+##
+## Functions to rename a conffile during upgrade
+##
+mv_conffile() {
+  local OLDCONFFILE="$1"
+  local NEWCONFFILE="$2"
+  local LASTVERSION="$3"
+  local PACKAGE="$4"
+
+  if [ "$LASTVERSION" = "--" ]; then
+    LASTVERSION=""
+    PACKAGE="$DPKG_MAINTSCRIPT_PACKAGE${DPKG_MAINTSCRIPT_ARCH:+:$DPKG_MAINTSCRIPT_ARCH}"
+  fi
+  if [ "$PACKAGE" = "--" -o -z "$PACKAGE" ]; then
+    PACKAGE="$DPKG_MAINTSCRIPT_PACKAGE${DPKG_MAINTSCRIPT_ARCH:+:$DPKG_MAINTSCRIPT_ARCH}"
+  fi
+  # Skip remaining parameters up to --
+  while [ "$1" != "--" -a $# -gt 0 ]; do
+    shift
+  done
+  [ $# -gt 0 ] || badusage "missing arguments after --"
+  shift
+
+  [ -n "$PACKAGE" ] || error "couldn't identify the package"
+  [ -n "$1" ] || error "maintainer script parameters are missing"
+  [ -n "$DPKG_MAINTSCRIPT_NAME" ] || \
+    error "environment variable DPKG_MAINTSCRIPT_NAME is required"
+  [ -n "$DPKG_MAINTSCRIPT_PACKAGE" ] || \
+    error "environment variable DPKG_MAINTSCRIPT_PACKAGE is required"
+  [ "${OLDCONFFILE}" != "${OLDCONFFILE#/}" ] || \
+    error "old-conffile '$OLDCONFFILE' is not an absolute path"
+  [ "${NEWCONFFILE}" != "${NEWCONFFILE#/}" ] || \
+    error "new-conffile '$NEWCONFFILE' is not an absolute path"
+  validate_optional_version "$LASTVERSION"
+
+  debug "Executing $0 mv_conffile in $DPKG_MAINTSCRIPT_NAME" \
+        "of $DPKG_MAINTSCRIPT_PACKAGE"
+  debug "CONFFILE=$OLDCONFFILE -> $NEWCONFFILE PACKAGE=$PACKAGE" \
+        "LASTVERSION=$LASTVERSION ACTION=$1 PARAM=$2"
+  case "$DPKG_MAINTSCRIPT_NAME" in
+  preinst)
+    if [ "$1" = "install" -o "$1" = "upgrade" ] && [ -n "$2" ] &&
+       dpkg --compare-versions -- "$2" le-nl "$LASTVERSION"; then
+      prepare_mv_conffile "$OLDCONFFILE" "$PACKAGE"
+    fi
+    ;;
+  postinst)
+    if [ "$1" = "configure" ] && [ -n "$2" ] &&
+       dpkg --compare-versions -- "$2" le-nl "$LASTVERSION"; then
+      finish_mv_conffile "$OLDCONFFILE" "$NEWCONFFILE" "$PACKAGE"
+    fi
+    ;;
+  postrm)
+    if [ "$1" = "abort-install" -o "$1" = "abort-upgrade" ] &&
+       [ -n "$2" ] &&
+       dpkg --compare-versions -- "$2" le-nl "$LASTVERSION"; then
+      abort_mv_conffile "$OLDCONFFILE" "$PACKAGE"
+    fi
+    ;;
+  *)
+    debug "$0 mv_conffile not required in $DPKG_MAINTSCRIPT_NAME"
+    ;;
+  esac
+}
+
+prepare_mv_conffile() {
+  local CONFFILE="$1"
+  local PACKAGE="$2"
+
+  [ -e "$DPKG_ROOT$CONFFILE" ] || return 0
+
+  ensure_package_owns_file "$PACKAGE" "$CONFFILE" || return 0
+
+  local md5sum old_md5sum
+  md5sum="$(md5sum "$DPKG_ROOT$CONFFILE" | sed -e 's/ .*//')"
+  old_md5sum="$(dpkg-query -W -f='${Conffiles}' "$PACKAGE" | \
+    sed -n -e "\\'^ $CONFFILE ' { s/ obsolete$//; s/.* //; p }")"
+  if [ "$md5sum" = "$old_md5sum" ]; then
+    mv -f "$DPKG_ROOT$CONFFILE" "$DPKG_ROOT$CONFFILE.dpkg-remove"
+  fi
+}
+
+finish_mv_conffile() {
+  local OLDCONFFILE="$1"
+  local NEWCONFFILE="$2"
+  local PACKAGE="$3"
+
+  rm -f "$DPKG_ROOT$OLDCONFFILE.dpkg-remove"
+
+  [ -e "$DPKG_ROOT$OLDCONFFILE" ] || return 0
+  ensure_package_owns_file "$PACKAGE" "$OLDCONFFILE" || return 0
+
+  echo "Preserving user changes to $DPKG_ROOT$NEWCONFFILE (renamed from $DPKG_ROOT$OLDCONFFILE)..."
+  if [ -e "$DPKG_ROOT$NEWCONFFILE" ]; then
+    mv -f "$DPKG_ROOT$NEWCONFFILE" "$DPKG_ROOT$NEWCONFFILE.dpkg-new"
+  fi
+  mv -f "$DPKG_ROOT$OLDCONFFILE" "$DPKG_ROOT$NEWCONFFILE"
+}
+
+abort_mv_conffile() {
+  local CONFFILE="$1"
+  local PACKAGE="$2"
+
+  ensure_package_owns_file "$PACKAGE" "$CONFFILE" || return 0
+
+  if [ -e "$DPKG_ROOT$CONFFILE.dpkg-remove" ]; then
+    echo "Reinstalling $DPKG_ROOT$CONFFILE that was moved away"
+    mv "$DPKG_ROOT$CONFFILE.dpkg-remove" "$DPKG_ROOT$CONFFILE"
+  fi
+}
+
+##
+## Functions to replace a symlink with a directory
+##
+symlink_to_dir() {
+  local SYMLINK="$1"
+  local SYMLINK_TARGET="$2"
+  local LASTVERSION="$3"
+  local PACKAGE="$4"
+
+  if [ "$LASTVERSION" = "--" ]; then
+    LASTVERSION=""
+    PACKAGE="$DPKG_MAINTSCRIPT_PACKAGE${DPKG_MAINTSCRIPT_ARCH:+:$DPKG_MAINTSCRIPT_ARCH}"
+  fi
+  if [ "$PACKAGE" = "--" -o -z "$PACKAGE" ]; then
+    PACKAGE="$DPKG_MAINTSCRIPT_PACKAGE${DPKG_MAINTSCRIPT_ARCH:+:$DPKG_MAINTSCRIPT_ARCH}"
+  fi
+
+  # Skip remaining parameters up to --
+  while [ "$1" != "--" -a $# -gt 0 ]; do
+    shift
+  done
+  [ $# -gt 0 ] || badusage "missing arguments after --"
+  shift
+
+  [ -n "$DPKG_MAINTSCRIPT_NAME" ] || \
+    error "environment variable DPKG_MAINTSCRIPT_NAME is required"
+  [ -n "$DPKG_MAINTSCRIPT_PACKAGE" ] || \
+    error "environment variable DPKG_MAINTSCRIPT_PACKAGE is required"
+  [ -n "$PACKAGE" ] || error "cannot identify the package"
+  [ -n "$SYMLINK" ] || error "symlink parameter is missing"
+  [ "${SYMLINK#/}" = "$SYMLINK" ] && \
+    error "symlink pathname is not an absolute path"
+  [ "${SYMLINK%/}" = "$SYMLINK" ] || \
+    error "symlink pathname ends with a slash"
+  [ -n "$SYMLINK_TARGET" ] || error "original symlink target is missing"
+  [ -n "$1" ] || error "maintainer script parameters are missing"
+  validate_optional_version "$LASTVERSION"
+
+  debug "Executing $0 symlink_to_dir in $DPKG_MAINTSCRIPT_NAME" \
+        "of $DPKG_MAINTSCRIPT_PACKAGE"
+  debug "SYMLINK=$SYMLINK -> $SYMLINK_TARGET PACKAGE=$PACKAGE" \
+        "LASTVERSION=$LASTVERSION ACTION=$1 PARAM=$2"
+
+  case "$DPKG_MAINTSCRIPT_NAME" in
+  preinst)
+    if [ "$1" = "install" -o "$1" = "upgrade" ] &&
+       [ -n "$2" ] && [ -h "$DPKG_ROOT$SYMLINK" ] &&
+       symlink_match "$SYMLINK" "$SYMLINK_TARGET" &&
+       dpkg --compare-versions -- "$2" le-nl "$LASTVERSION"; then
+      mv -f "$DPKG_ROOT$SYMLINK" "$DPKG_ROOT${SYMLINK}.dpkg-backup"
+    fi
+    ;;
+  postinst)
+    # We cannot bail depending on the version, as here we only
+    # know what was the last configured version, and we might
+    # have been unpacked, then upgraded with an unpack and thus
+    # never been configured before.
+    if [ "$1" = "configure" ] &&
+       [ -h "$DPKG_ROOT${SYMLINK}.dpkg-backup" ] &&
+       symlink_match "${SYMLINK}.dpkg-backup" "$SYMLINK_TARGET"
+    then
+      rm -f "$DPKG_ROOT${SYMLINK}.dpkg-backup"
+    fi
+    ;;
+  postrm)
+    if [ "$1" = "purge" ] && [ -h "$DPKG_ROOT${SYMLINK}.dpkg-backup" ]; then
+      rm -f "$DPKG_ROOT${SYMLINK}.dpkg-backup"
+    fi
+    if [ "$1" = "abort-install" -o "$1" = "abort-upgrade" ] &&
+       [ -n "$2" ] &&
+       [ ! -e "$DPKG_ROOT$SYMLINK" ] &&
+       [ -h "$DPKG_ROOT${SYMLINK}.dpkg-backup" ] &&
+       symlink_match "${SYMLINK}.dpkg-backup" "$SYMLINK_TARGET" &&
+       dpkg --compare-versions -- "$2" le-nl "$LASTVERSION"; then
+      echo "Restoring backup of $DPKG_ROOT$SYMLINK ..."
+      mv "$DPKG_ROOT${SYMLINK}.dpkg-backup" "$DPKG_ROOT$SYMLINK"
+    fi
+    ;;
+  *)
+    debug "$0 symlink_to_dir not required in $DPKG_MAINTSCRIPT_NAME"
+    ;;
+  esac
+}
+
+##
+## Functions to replace a directory with a symlink
+##
+dir_to_symlink() {
+  local PATHNAME="${1%/}"
+  local SYMLINK_TARGET="$2"
+  local LASTVERSION="$3"
+  local PACKAGE="$4"
+
+  if [ "$LASTVERSION" = "--" ]; then
+    LASTVERSION=""
+    PACKAGE="$DPKG_MAINTSCRIPT_PACKAGE${DPKG_MAINTSCRIPT_ARCH:+:$DPKG_MAINTSCRIPT_ARCH}"
+  fi
+  if [ "$PACKAGE" = "--" -o -z "$PACKAGE" ]; then
+    PACKAGE="$DPKG_MAINTSCRIPT_PACKAGE${DPKG_MAINTSCRIPT_ARCH:+:$DPKG_MAINTSCRIPT_ARCH}"
+  fi
+
+  # Skip remaining parameters up to --
+  while [ "$1" != "--" -a $# -gt 0 ]; do
+    shift
+  done
+  [ $# -gt 0 ] || badusage "missing arguments after --"
+  shift
+
+  [ -n "$DPKG_MAINTSCRIPT_NAME" ] || \
+    error "environment variable DPKG_MAINTSCRIPT_NAME is required"
+  [ -n "$DPKG_MAINTSCRIPT_PACKAGE" ] || \
+    error "environment variable DPKG_MAINTSCRIPT_PACKAGE is required"
+  [ -n "$PACKAGE" ] || error "cannot identify the package"
+  [ -n "$PATHNAME" ] || error "directory parameter is missing"
+  [ "${PATHNAME#/}" = "$PATHNAME" ] && \
+    error "directory parameter is not an absolute path"
+  [ -n "$SYMLINK_TARGET" ] || error "new symlink target is missing"
+  [ -n "$1" ] || error "maintainer script parameters are missing"
+  validate_optional_version "$LASTVERSION"
+
+  debug "Executing $0 dir_to_symlink in $DPKG_MAINTSCRIPT_NAME" \
+        "of $DPKG_MAINTSCRIPT_PACKAGE"
+  debug "PATHNAME=$PATHNAME SYMLINK_TARGET=$SYMLINK_TARGET" \
+        "PACKAGE=$PACKAGE LASTVERSION=$LASTVERSION ACTION=$1 PARAM=$2"
+
+  case "$DPKG_MAINTSCRIPT_NAME" in
+  preinst)
+    if [ "$1" = "install" -o "$1" = "upgrade" ] &&
+       [ -n "$2" ] &&
+       [ ! -h "$DPKG_ROOT$PATHNAME" ] &&
+       [ -d "$DPKG_ROOT$PATHNAME" ] &&
+       dpkg --compare-versions -- "$2" le-nl "$LASTVERSION"; then
+      prepare_dir_to_symlink "$PACKAGE" "$PATHNAME"
+    fi
+    ;;
+  postinst)
+    # We cannot bail depending on the version, as here we only
+    # know what was the last configured version, and we might
+    # have been unpacked, then upgraded with an unpack and thus
+    # never been configured before.
+    if [ "$1" = "configure" ] &&
+       [ -d "$DPKG_ROOT${PATHNAME}.dpkg-backup" ] &&
+       [ ! -h "$DPKG_ROOT$PATHNAME" ] &&
+       [ -d "$DPKG_ROOT$PATHNAME" ] &&
+       [ -f "$DPKG_ROOT$PATHNAME/.dpkg-staging-dir" ]; then
+      finish_dir_to_symlink "$PATHNAME" "$SYMLINK_TARGET"
+    fi
+    ;;
+  postrm)
+    if [ "$1" = "purge" ] &&
+       [ -d "$DPKG_ROOT${PATHNAME}.dpkg-backup" ]; then
+      rm -rf "$DPKG_ROOT${PATHNAME}.dpkg-backup"
+    fi
+    if [ "$1" = "abort-install" -o "$1" = "abort-upgrade" ] &&
+       [ -n "$2" ] &&
+       [ -d "$DPKG_ROOT${PATHNAME}.dpkg-backup" ] &&
+       [ \( ! -h "$DPKG_ROOT$PATHNAME" -a \
+            -d "$DPKG_ROOT$PATHNAME" -a \
+            -f "$DPKG_ROOT$PATHNAME/.dpkg-staging-dir" \) -o \
+         \( -h "$DPKG_ROOT$PATHNAME" -a \
+            \( "$(readlink "$DPKG_ROOT$PATHNAME")" = "$SYMLINK_TARGET" -o \
+               "$(dpkg-realpath "$PATHNAME")" = "$SYMLINK_TARGET" \) \) ] &&
+       dpkg --compare-versions -- "$2" le-nl "$LASTVERSION"; then
+      abort_dir_to_symlink "$PATHNAME"
+    fi
+    ;;
+  *)
+    debug "$0 dir_to_symlink not required in $DPKG_MAINTSCRIPT_NAME"
+    ;;
+  esac
+}
+
+prepare_dir_to_symlink()
+{
+  local PACKAGE="$1"
+  local PATHNAME="$2"
+
+  local LINE
+  # If there are conffiles we should not perform the switch.
+  dpkg-query -W -f='${Conffiles}\n' "$PACKAGE" | while read -r LINE; do
+    case "$LINE" in
+    "$PATHNAME"/*)
+      error "directory '$PATHNAME' contains conffiles," \
+            "cannot switch to symlink"
+      ;;
+    esac
+  done
+
+  # If there are locally created files or files owned by another package
+  # we should not perform the switch.
+  export DPKG_MAINTSCRIPT_HELPER_INTERNAL_API="$version"
+  find "$DPKG_ROOT$PATHNAME" -print0 | \
+    xargs -0 -n1 "$0" _internal_pkg_must_own_file "$PACKAGE" || \
+    error "directory '$PATHNAME' contains files not owned by" \
+          "package $PACKAGE, cannot switch to symlink"
+  unset DPKG_MAINTSCRIPT_HELPER_INTERNAL_API
+
+  # At this point, we know that the directory either contains no files,
+  # or only non-conffiles owned by the package.
+  #
+  # To do the switch we cannot simply replace it with the final symlink
+  # just yet, because dpkg needs to remove any file present in the old
+  # package that have disappeared in the new one, and we do not want to
+  # lose files resolving to the same pathname in the symlink target.
+  #
+  # We cannot replace the directory with a staging symlink either,
+  # because dpkg will update symlinks to their new target.
+  #
+  # So we need to create a staging directory, to avoid removing files
+  # from other packages, and to trap any new files in the directory
+  # to move them to their correct place later on.
+  mv -f "$DPKG_ROOT$PATHNAME" "$DPKG_ROOT${PATHNAME}.dpkg-backup"
+  mkdir "$DPKG_ROOT$PATHNAME"
+
+  # Mark it as a staging directory, so that we can track things.
+  touch "$DPKG_ROOT$PATHNAME/.dpkg-staging-dir"
+}
+
+finish_dir_to_symlink()
+{
+  local PATHNAME="$1"
+  local SYMLINK_TARGET="$2"
+
+  # Move the contents of the staging directory to the symlink target,
+  # as those are all new files installed between this package being
+  # unpacked and configured.
+  local ABS_SYMLINK_TARGET
+  if [ "${SYMLINK_TARGET#/}" = "$SYMLINK_TARGET" ]; then
+    ABS_SYMLINK_TARGET="$(dirname "$PATHNAME")/$SYMLINK_TARGET"
+  else
+    ABS_SYMLINK_TARGET="$SYMLINK_TARGET"
+  fi
+  rm "$DPKG_ROOT$PATHNAME/.dpkg-staging-dir"
+  find "$DPKG_ROOT$PATHNAME" -mindepth 1 -maxdepth 1 -print0 | \
+    xargs -0 -I% mv -f "%" "$DPKG_ROOT$ABS_SYMLINK_TARGET/"
+
+  # Remove the staging directory.
+  rmdir "$DPKG_ROOT$PATHNAME"
+
+  # Do the actual switch.
+  ln -s "$SYMLINK_TARGET" "$DPKG_ROOT$PATHNAME"
+
+  # We are left behind the old files owned by this package in the backup
+  # directory, just remove it.
+  rm -rf "$DPKG_ROOT${PATHNAME}.dpkg-backup"
+}
+
+abort_dir_to_symlink()
+{
+  local PATHNAME="$1"
+
+  echo "Restoring backup of $DPKG_ROOT$PATHNAME ..."
+  if [ -h "$DPKG_ROOT$PATHNAME" ]; then
+    rm -f "$DPKG_ROOT$PATHNAME"
+  else
+    # The staging directory must be empty, as no other package
+    # should have been unpacked in between.
+    rm -f "$DPKG_ROOT$PATHNAME/.dpkg-staging-dir"
+    rmdir "$DPKG_ROOT$PATHNAME"
+  fi
+
+  mv "$DPKG_ROOT${PATHNAME}.dpkg-backup" "$DPKG_ROOT$PATHNAME"
+}
+
+# Common functions
+validate_optional_version() {
+  local VERSION="$1"
+
+  if [ -z "$VERSION" ]; then
+    return
+  fi
+
+  if ! VERSIONCHECK=$(dpkg --validate-version -- "$VERSION" 2>&1); then
+    error "$VERSIONCHECK"
+  fi
+}
+
+ensure_package_owns_file() {
+  local PACKAGE="$1"
+  local FILE="$2"
+
+  if ! dpkg-query -L "$PACKAGE" | grep -F -q -x "$FILE"; then
+    debug "File '$FILE' not owned by package " \
+          "'$PACKAGE', skipping $command"
+    return 1
+  fi
+  return 0
+}
+
+internal_pkg_must_own_file()
+{
+  local PACKAGE="$1"
+  local FILE="${2##"$DPKG_ROOT"}"
+
+  if [ "$DPKG_MAINTSCRIPT_HELPER_INTERNAL_API" != "$version" ]; then
+    error "internal API used by external command"
+  fi
+
+  if ! ensure_package_owns_file "$PACKAGE" "$FILE"; then
+    error "file '$FILE' not owned by package '$PACKAGE'"
+  fi
+  return 0
+}
+
+symlink_match()
+{
+  local SYMLINK="$1"
+  local SYMLINK_TARGET="$2"
+
+  [ "$(readlink "$DPKG_ROOT$SYMLINK")" = "$SYMLINK_TARGET" ] || \
+  [ "$(dpkg-realpath "$SYMLINK")" = "$SYMLINK_TARGET" ]
+}
+
+usage() {
+  cat <<END
+Usage: $PROGNAME <command> <parameter>... -- <maintainer-script-parameter>...
+
+Commands:
+  supports <command>
+        Returns 0 (success) if the given command is supported, 1 otherwise.
+  rm_conffile <conffile> [<last-version> [<package>]]
+        Remove obsolete conffile. Must be called in preinst, postinst and
+        postrm.
+  mv_conffile <old-conf> <new-conf> [<last-version> [<package>]]
+        Rename a conffile. Must be called in preinst, postinst and postrm.
+  symlink_to_dir <pathname> <old-symlink-target> [<last-version> [<package>]]
+        Replace a symlink with a directory. Must be called in preinst,
+        postinst and postrm.
+  dir_to_symlink <pathname> <new-symlink-target> [<last-version> [<package>]]
+        Replace a directory with a symlink. Must be called in preinst,
+        postinst and postrm.
+  help
+  -?, --help
+        Show this help message.
+      --version
+        Show the version.
+END
+}
+
+# Main code
+set -e
+
+PROGNAME=$(basename "$0")
+version="unknown"
+DPKG_ROOT=${DPKG_ROOT:+$(realpath "$DPKG_ROOT")}
+# Remove default root dir.
+if [ "$DPKG_ROOT" = "/" ]; then
+  DPKG_ROOT=""
+fi
+export DPKG_ROOT
+
+PKGDATADIR_DEFAULT=src
+PKGDATADIR="${DPKG_DATADIR:-$PKGDATADIR_DEFAULT}"
+
+# shellcheck source=src/sh/dpkg-error.sh
+. "$PKGDATADIR/sh/dpkg-error.sh"
+
+setup_colors
+
+command="$1"
+[ $# -gt 0 ] || badusage "missing command"
+shift
+
+case "$command" in
+supports)
+  case "$1" in
+  rm_conffile|mv_conffile|symlink_to_dir|dir_to_symlink)
+    code=0
+    ;;
+  *)
+    code=1
+    ;;
+  esac
+  if [ -z "$DPKG_MAINTSCRIPT_NAME" ]; then
+    warning "environment variable DPKG_MAINTSCRIPT_NAME missing"
+    code=1
+  fi
+  if [ -z "$DPKG_MAINTSCRIPT_PACKAGE" ]; then
+    warning "environment variable DPKG_MAINTSCRIPT_PACKAGE missing"
+    code=1
+  fi
+  exit $code
+  ;;
+rm_conffile)
+  rm_conffile "$@"
+  ;;
+mv_conffile)
+  mv_conffile "$@"
+  ;;
+symlink_to_dir)
+  symlink_to_dir "$@"
+  ;;
+dir_to_symlink)
+  dir_to_symlink "$@"
+  ;;
+_internal_pkg_must_own_file)
+  # This is an internal command, must not be used outside this program.
+  internal_pkg_must_own_file "$@"
+  ;;
+--help|help|-?)
+  usage
+  ;;
+--version)
+  cat <<END
+Debian $PROGNAME version $version.
+
+This is free software; see the GNU General Public License version 2 or
+later for copying conditions. There is NO warranty.
+END
+  ;;
+*)
+  badusage "command $command is unknown
+Hint: upgrading dpkg to a newer version might help."
+esac
+
+exit 0
diff --git a/src/dpkg-realpath.sh b/src/dpkg-realpath.sh
new file mode 100755
index 0000000..84438b4
--- /dev/null
+++ b/src/dpkg-realpath.sh
@@ -0,0 +1,179 @@
+#!/bin/sh
+#
+# Copyright © 2020 Helmut Grohne <helmut@subdivi.de>
+# Copyright © 2020 Guillem Jover <guillem@debian.org>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+set -e
+
+PROGNAME=$(basename "$0")
+version="unknown"
+EOL="\n"
+
+PKGDATADIR_DEFAULT=src
+PKGDATADIR="${DPKG_DATADIR:-$PKGDATADIR_DEFAULT}"
+
+# shellcheck source=src/sh/dpkg-error.sh
+. "$PKGDATADIR/sh/dpkg-error.sh"
+
+show_version()
+{
+  cat <<END
+Debian $PROGNAME version $version.
+
+This is free software; see the GNU General Public License version 2 or
+later for copying conditions. There is NO warranty.
+END
+}
+
+show_usage()
+{
+  cat <<END
+Usage: $PROGNAME [<option>...] <pathname>
+
+Options:
+  -z, --zero                   end output line with NUL, not newline.
+      --instdir <directory>    set the root directory.
+      --root <directory>       set the root directory.
+      --version                show the version.
+  -?, --help                   show this help message.
+END
+}
+
+canonicalize() {
+  local src="$1"
+  local root="$DPKG_ROOT"
+  local loop=0
+  local result="$root"
+  local dst
+
+  # Check whether the path is relative and make it absolute otherwise.
+  if [ "$src" = "${src#/}" ]; then
+    src="$(pwd)/$src"
+    src="${src#"$root"}"
+  fi
+
+  # Remove prefixed slashes.
+  while [ "$src" != "${src#/}" ]; do
+     src=${src#/}
+  done
+  while [ -n "$src" ]; do
+    # Get the first directory component.
+    prefix=${src%%/*}
+    # Remove the first directory component from src.
+    src=${src#"$prefix"}
+    # Remove prefixed slashes.
+    while [ "$src" != "${src#/}" ]; do
+      src=${src#/}
+    done
+    # Resolve the first directory component.
+    if [ "$prefix" = . ]; then
+      # Ignore, stay at the same directory.
+      :
+    elif [ "$prefix" = .. ]; then
+      # Go up one directory.
+      result=${result%/*}
+      if [ -n "$root" ] && [ "${result#"$root"}" = "$result" ]; then
+        result="$root"
+      fi
+    elif [ -h "$result/$prefix" ]; then
+      loop=$((loop + 1))
+      if [ "$loop" -gt 25 ]; then
+        error "too many levels of symbolic links"
+      fi
+      # Resolve the symlink within $result.
+      dst=$(readlink "$result/$prefix")
+      case "$dst" in
+      /*)
+        # Absolute pathname, reset result back to $root.
+        result=$root
+        src="$dst${src:+/$src}"
+        # Remove prefixed slashes.
+        while [ "$src" != "${src#/}" ]; do
+          src=${src#/}
+        done
+        ;;
+      *)
+        # Relative pathname.
+        src="$dst${src:+/$src}"
+        ;;
+      esac
+    else
+      # Otherwise append the prefix.
+      result="$result/$prefix"
+    fi
+  done
+  # We are done, print the resolved pathname, w/o $root.
+  result="${result#"$root"}"
+  printf "%s$EOL" "${result:-/}"
+}
+
+setup_colors
+
+DPKG_ROOT="${DPKG_ROOT:-}"
+export DPKG_ROOT
+
+while [ $# -ne 0 ]; do
+  case "$1" in
+  -z|--zero)
+    EOL="\0"
+    ;;
+  --instdir|--root)
+    shift
+    DPKG_ROOT=$1
+    ;;
+  --instdir=*)
+    DPKG_ROOT="${1#--instdir=}"
+    ;;
+  --root=*)
+    DPKG_ROOT="${1#--root=}"
+    ;;
+  --version)
+    show_version
+    exit 0
+    ;;
+  --help|-\?)
+    show_usage
+    exit 0
+    ;;
+  --)
+    shift
+    pathname="$1"
+    ;;
+  -*)
+    badusage "unknown option: $1"
+    ;;
+  *)
+    pathname="$1"
+    ;;
+  esac
+  shift
+done
+
+# Normalize root directory.
+DPKG_ROOT="${DPKG_ROOT:+$(realpath "$DPKG_ROOT")}"
+# Remove default root dir.
+if [ "$DPKG_ROOT" = "/" ]; then
+  DPKG_ROOT=""
+fi
+
+[ -n "$pathname" ] || badusage "missing pathname"
+if [ "${pathname#"$DPKG_ROOT"}" != "$pathname" ]; then
+  error "link '$pathname' includes root prefix '$DPKG_ROOT'"
+fi
+
+canonicalize "$pathname"
+
+exit 0
diff --git a/src/main/archives.c b/src/main/archives.c
new file mode 100644
index 0000000..015bb23
--- /dev/null
+++ b/src/main/archives.c
@@ -0,0 +1,1711 @@
+/*
+ * dpkg - main program for package management
+ * archives.c - actions that process archive files, mainly unpack
+ *
+ * Copyright © 1994,1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2000 Wichert Akkerman <wakkerma@debian.org>
+ * Copyright © 2007-2015 Guillem Jover <guillem@debian.org>
+ * Copyright © 2011 Linaro Limited
+ * Copyright © 2011 Raphaël Hertzog <hertzog@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/stat.h>
+
+#include <errno.h>
+#include <string.h>
+#include <time.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <obstack.h>
+#define obstack_chunk_alloc m_malloc
+#define obstack_chunk_free free
+
+#include <dpkg/i18n.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/pkg.h>
+#include <dpkg/path.h>
+#include <dpkg/fdio.h>
+#include <dpkg/buffer.h>
+#include <dpkg/subproc.h>
+#include <dpkg/command.h>
+#include <dpkg/file.h>
+#include <dpkg/treewalk.h>
+#include <dpkg/tarfn.h>
+#include <dpkg/options.h>
+#include <dpkg/triglib.h>
+#include <dpkg/db-ctrl.h>
+#include <dpkg/db-fsys.h>
+
+#include "main.h"
+#include "archives.h"
+#include "filters.h"
+
+static inline void
+fd_writeback_init(int fd)
+{
+  /* Ignore the return code as it should be considered equivalent to an
+   * asynchronous hint for the kernel, we are doing an fsync() later on
+   * anyway. */
+#if defined(SYNC_FILE_RANGE_WRITE)
+  sync_file_range(fd, 0, 0, SYNC_FILE_RANGE_WRITE);
+#elif defined(HAVE_POSIX_FADVISE)
+  posix_fadvise(fd, 0, 0, POSIX_FADV_DONTNEED);
+#endif
+}
+
+static struct obstack tar_pool;
+static bool tar_pool_init = false;
+
+/**
+ * Allocate memory from the tar memory pool.
+ */
+static void *
+tar_pool_alloc(size_t size)
+{
+  if (!tar_pool_init) {
+    obstack_init(&tar_pool);
+    tar_pool_init = true;
+  }
+
+  /* cppcheck-suppress[nullPointerArithmetic]:
+   * False positive, imported module. */
+  return obstack_alloc(&tar_pool, size);
+}
+
+/**
+ * Free memory from the tar memory pool.
+ */
+static void
+tar_pool_free(void *ptr)
+{
+  obstack_free(&tar_pool, ptr);
+}
+
+/**
+ * Release the tar memory pool.
+ */
+static void
+tar_pool_release(void)
+{
+  if (tar_pool_init) {
+    /* cppcheck-suppress[nullPointerArithmetic,pointerLessThanZero]:
+     * False positive, imported module. */
+    obstack_free(&tar_pool, NULL);
+    tar_pool_init = false;
+  }
+}
+
+struct fsys_namenode_list *
+tar_fsys_namenode_queue_push(struct fsys_namenode_queue *queue,
+                            struct fsys_namenode *namenode)
+{
+  struct fsys_namenode_list *node;
+
+  node = tar_pool_alloc(sizeof(*node));
+  node->namenode = namenode;
+  node->next = NULL;
+
+  *queue->tail = node;
+  queue->tail = &node->next;
+
+  return node;
+}
+
+static void
+tar_fsys_namenode_queue_pop(struct fsys_namenode_queue *queue,
+                           struct fsys_namenode_list **tail_prev,
+                           struct fsys_namenode_list *node)
+{
+  tar_pool_free(node);
+  queue->tail = tail_prev;
+  *tail_prev = NULL;
+}
+
+/**
+ * Check if a file or directory will save a package from disappearance.
+ *
+ * A package can only be saved by a file or directory which is part
+ * only of itself - it must be neither part of the new package being
+ * installed nor part of any 3rd package (this is important so that
+ * shared directories don't stop packages from disappearing).
+ */
+bool
+filesavespackage(struct fsys_namenode_list *file,
+                 struct pkginfo *pkgtobesaved,
+                 struct pkginfo *pkgbeinginstalled)
+{
+  struct fsys_node_pkgs_iter *iter;
+  struct pkginfo *thirdpkg;
+
+  debug(dbg_eachfiledetail, "filesavespackage file '%s' package %s",
+        file->namenode->name, pkg_name(pkgtobesaved, pnaw_always));
+
+  /* If the file is a contended one and it's overridden by either
+   * the package we're considering disappearing or the package
+   * we're installing then they're not actually the same file, so
+   * we can't disappear the package - it is saved by this file. */
+  if (file->namenode->divert && file->namenode->divert->useinstead) {
+    struct pkgset *divpkgset;
+
+    divpkgset = file->namenode->divert->pkgset;
+    if (divpkgset == pkgtobesaved->set || divpkgset == pkgbeinginstalled->set) {
+      debug(dbg_eachfiledetail,"filesavespackage ... diverted -- save!");
+      return true;
+    }
+  }
+  /* Is the file in the package being installed? If so then it can't save. */
+  if (file->namenode->flags & FNNF_NEW_INARCHIVE) {
+    debug(dbg_eachfiledetail,"filesavespackage ... in new archive -- no save");
+    return false;
+  }
+  /* Look for a 3rd package which can take over the file (in case
+   * it's a directory which is shared by many packages. */
+  iter = fsys_node_pkgs_iter_new(file->namenode);
+  while ((thirdpkg = fsys_node_pkgs_iter_next(iter))) {
+    debug(dbg_eachfiledetail, "filesavespackage ... also in %s",
+          pkg_name(thirdpkg, pnaw_always));
+
+    /* Is this not the package being installed or the one being
+     * checked for disappearance? */
+    if (thirdpkg == pkgbeinginstalled || thirdpkg == pkgtobesaved)
+      continue;
+
+    /* A Multi-Arch: same package can share files and their presence in a
+     * third package of the same set is not a sign that we can get rid of
+     * it. */
+    if (pkgtobesaved->installed.multiarch == PKG_MULTIARCH_SAME &&
+        thirdpkg->set == pkgtobesaved->set)
+      continue;
+
+    debug(dbg_eachfiledetail,"filesavespackage ...  is 3rd package");
+
+    /* If !files_list_valid then we have already disappeared this one,
+     * so we should not try to make it take over this shared directory. */
+    if (!thirdpkg->files_list_valid) {
+      debug(dbg_eachfiledetail, "process_archive ... already disappeared!");
+      continue;
+    }
+
+    /* We've found a package that can take this file. */
+    debug(dbg_eachfiledetail, "filesavespackage ...  taken -- no save");
+    fsys_node_pkgs_iter_free(iter);
+    return false;
+  }
+  fsys_node_pkgs_iter_free(iter);
+
+  debug(dbg_eachfiledetail, "filesavespackage ... not taken -- save !");
+  return true;
+}
+
+static void
+md5hash_prev_conffile(struct pkginfo *pkg, char *oldhash, const char *oldname,
+                      struct fsys_namenode *namenode)
+{
+  struct pkginfo *otherpkg;
+  struct conffile *conff;
+
+  debug(dbg_conffdetail, "tarobject looking for shared conffile %s",
+        namenode->name);
+
+  for (otherpkg = &pkg->set->pkg; otherpkg; otherpkg = otherpkg->arch_next) {
+    if (otherpkg == pkg)
+      continue;
+    /* If we are reinstalling, even if the other package is only unpacked,
+     * we can always make use of the Conffiles hash value from an initial
+     * installation, if that happened at all. */
+    if (otherpkg->status <= PKG_STAT_UNPACKED &&
+        dpkg_version_compare(&otherpkg->installed.version,
+                             &otherpkg->configversion) != 0)
+      continue;
+    for (conff = otherpkg->installed.conffiles; conff; conff = conff->next) {
+      if (conff->obsolete || conff->remove_on_upgrade)
+        continue;
+      if (strcmp(conff->name, namenode->name) == 0)
+        break;
+    }
+    if (conff) {
+      strcpy(oldhash, conff->hash);
+      debug(dbg_conffdetail,
+            "tarobject found shared conffile, from pkg %s (%s); digest=%s",
+            pkg_name(otherpkg, pnaw_always),
+            pkg_status_name(otherpkg), oldhash);
+      break;
+    }
+  }
+
+  /* If no package was found with a valid Conffiles field, we make the
+   * risky assumption that the hash of the current .dpkg-new file is
+   * the one of the previously unpacked package. */
+  if (otherpkg == NULL) {
+    md5hash(pkg, oldhash, oldname);
+    debug(dbg_conffdetail,
+          "tarobject found shared conffile, from disk; digest=%s", oldhash);
+  }
+}
+
+void cu_pathname(int argc, void **argv) {
+  path_remove_tree((char*)(argv[0]));
+}
+
+int
+tarfileread(struct tar_archive *tar, char *buf, int len)
+{
+  struct tarcontext *tc = (struct tarcontext *)tar->ctx;
+  int n;
+
+  n = fd_read(tc->backendpipe, buf, len);
+  if (n < 0)
+    ohshite(_("error reading from dpkg-deb pipe"));
+  return n;
+}
+
+static void
+tarobject_skip_padding(struct tarcontext *tc, struct tar_entry *te)
+{
+  struct dpkg_error err;
+  size_t remainder;
+
+  remainder = te->size % TARBLKSZ;
+  if (remainder == 0)
+    return;
+
+  if (fd_skip(tc->backendpipe, TARBLKSZ - remainder, &err) < 0)
+    ohshit(_("cannot skip padding for file '%.255s': %s"), te->name, err.str);
+}
+
+static void
+tarobject_skip_entry(struct tarcontext *tc, struct tar_entry *ti)
+{
+  /* We need to advance the tar file to the next object, so read the
+   * file data and set it to oblivion. */
+  if (ti->type == TAR_FILETYPE_FILE) {
+    struct dpkg_error err;
+
+    if (fd_skip(tc->backendpipe, ti->size, &err) < 0)
+      ohshit(_("cannot skip file '%.255s' (replaced or excluded?) from pipe: %s"),
+             ti->name, err.str);
+    tarobject_skip_padding(tc, ti);
+  }
+}
+
+struct varbuf_state fname_state;
+struct varbuf_state fnametmp_state;
+struct varbuf_state fnamenew_state;
+struct varbuf fnamevb;
+struct varbuf fnametmpvb;
+struct varbuf fnamenewvb;
+struct pkg_deconf_list *deconfigure = NULL;
+
+static time_t currenttime;
+
+static int
+does_replace(struct pkginfo *new_pkg, struct pkgbin *new_pkgbin,
+             struct pkginfo *old_pkg, struct pkgbin *old_pkgbin)
+{
+  struct dependency *dep;
+
+  debug(dbg_depcon,"does_replace new=%s old=%s (%s)",
+        pkgbin_name(new_pkg, new_pkgbin, pnaw_always),
+        pkgbin_name(old_pkg, old_pkgbin, pnaw_always),
+        versiondescribe_c(&old_pkgbin->version, vdew_always));
+  for (dep = new_pkgbin->depends; dep; dep = dep->next) {
+    if (dep->type != dep_replaces || dep->list->ed != old_pkg->set)
+      continue;
+    debug(dbg_depcondetail,"does_replace ... found old, version %s",
+          versiondescribe_c(&dep->list->version,vdew_always));
+    if (!versionsatisfied(old_pkgbin, dep->list))
+      continue;
+    /* The test below can only trigger if dep_replaces start having
+     * arch qualifiers different from “any”. */
+    if (!archsatisfied(old_pkgbin, dep->list))
+      continue;
+    debug(dbg_depcon,"does_replace ... yes");
+    return true;
+  }
+  debug(dbg_depcon,"does_replace ... no");
+  return false;
+}
+
+static void
+tarobject_extract(struct tarcontext *tc, struct tar_entry *te,
+                  const char *path, struct file_stat *st,
+                  struct fsys_namenode *namenode)
+{
+  static struct varbuf hardlinkfn;
+  static int fd;
+
+  struct dpkg_error err;
+  struct fsys_namenode *linknode;
+  char *newhash;
+  int rc;
+
+  switch (te->type) {
+  case TAR_FILETYPE_FILE:
+    /* We create the file with mode 0 to make sure nobody can do anything with
+     * it until we apply the proper mode, which might be a statoverride. */
+    fd = open(path, O_CREAT | O_EXCL | O_WRONLY, 0);
+    if (fd < 0)
+      ohshite(_("unable to create '%.255s' (while processing '%.255s')"),
+              path, te->name);
+    push_cleanup(cu_closefd, ehflag_bombout, 1, &fd);
+    debug(dbg_eachfiledetail, "tarobject file open size=%jd",
+          (intmax_t)te->size);
+
+    /* We try to tell the filesystem how much disk space we are going to
+     * need to let it reduce fragmentation and possibly improve performance,
+     * as we do know the size beforehand. */
+    fd_allocate_size(fd, 0, te->size);
+
+    newhash = nfmalloc(MD5HASHLEN + 1);
+    if (fd_fd_copy_and_md5(tc->backendpipe, fd, newhash, te->size, &err) < 0)
+      ohshit(_("cannot copy extracted data for '%.255s' to '%.255s': %s"),
+             te->name, fnamenewvb.buf, err.str);
+    namenode->newhash = newhash;
+    debug(dbg_eachfiledetail, "tarobject file digest=%s", namenode->newhash);
+
+    tarobject_skip_padding(tc, te);
+
+    fd_writeback_init(fd);
+
+    if (namenode->statoverride)
+      debug(dbg_eachfile, "tarobject ... stat override, uid=%d, gid=%d, mode=%04o",
+            namenode->statoverride->uid,
+            namenode->statoverride->gid,
+            namenode->statoverride->mode);
+    rc = fchown(fd, st->uid, st->gid);
+    if (forcible_nonroot_error(rc))
+      ohshite(_("error setting ownership of '%.255s'"), te->name);
+    rc = fchmod(fd, st->mode & ~S_IFMT);
+    if (forcible_nonroot_error(rc))
+      ohshite(_("error setting permissions of '%.255s'"), te->name);
+
+    /* Postpone the fsync, to try to avoid massive I/O degradation. */
+    if (!in_force(FORCE_UNSAFE_IO))
+      namenode->flags |= FNNF_DEFERRED_FSYNC;
+
+    pop_cleanup(ehflag_normaltidy); /* fd = open(path) */
+    if (close(fd))
+      ohshite(_("error closing/writing '%.255s'"), te->name);
+    break;
+  case TAR_FILETYPE_FIFO:
+    if (mkfifo(path, 0))
+      ohshite(_("error creating pipe '%.255s'"), te->name);
+    debug(dbg_eachfiledetail, "tarobject fifo");
+    break;
+  case TAR_FILETYPE_CHARDEV:
+    if (mknod(path, S_IFCHR, te->dev))
+      ohshite(_("error creating device '%.255s'"), te->name);
+    debug(dbg_eachfiledetail, "tarobject chardev");
+    break;
+  case TAR_FILETYPE_BLOCKDEV:
+    if (mknod(path, S_IFBLK, te->dev))
+      ohshite(_("error creating device '%.255s'"), te->name);
+    debug(dbg_eachfiledetail, "tarobject blockdev");
+    break;
+  case TAR_FILETYPE_HARDLINK:
+    varbuf_set_str(&hardlinkfn, dpkg_fsys_get_dir());
+    linknode = fsys_hash_find_node(te->linkname, FHFF_NONE);
+    varbuf_add_str(&hardlinkfn,
+                   namenodetouse(linknode, tc->pkg, &tc->pkg->available)->name);
+    if (linknode->flags & (FNNF_DEFERRED_RENAME | FNNF_NEW_CONFF))
+      varbuf_add_str(&hardlinkfn, DPKGNEWEXT);
+    varbuf_end_str(&hardlinkfn);
+    if (link(hardlinkfn.buf, path))
+      ohshite(_("error creating hard link '%.255s'"), te->name);
+    namenode->newhash = linknode->newhash;
+    debug(dbg_eachfiledetail, "tarobject hardlink digest=%s", namenode->newhash);
+    break;
+  case TAR_FILETYPE_SYMLINK:
+    /* We've already checked for an existing directory. */
+    if (symlink(te->linkname, path))
+      ohshite(_("error creating symbolic link '%.255s'"), te->name);
+    debug(dbg_eachfiledetail, "tarobject symlink creating");
+    break;
+  case TAR_FILETYPE_DIR:
+    /* We've already checked for an existing directory. */
+    if (mkdir(path, 0))
+      ohshite(_("error creating directory '%.255s'"), te->name);
+    debug(dbg_eachfiledetail, "tarobject directory creating");
+    break;
+  default:
+    internerr("unknown tar type '%d', but already checked", te->type);
+  }
+}
+
+static void
+tarobject_hash(struct tarcontext *tc, struct tar_entry *te,
+               struct fsys_namenode *namenode)
+{
+  if (te->type == TAR_FILETYPE_FILE) {
+    struct dpkg_error err;
+    char *newhash;
+
+    newhash = nfmalloc(MD5HASHLEN + 1);
+    if (fd_md5(tc->backendpipe, newhash, te->size, &err) < 0)
+      ohshit(_("cannot compute MD5 digest for file '%.255s' in tar archive: %s"),
+             te->name, err.str);
+    tarobject_skip_padding(tc, te);
+
+    namenode->newhash = newhash;
+    debug(dbg_eachfiledetail, "tarobject file digest=%s", namenode->newhash);
+  } else if (te->type == TAR_FILETYPE_HARDLINK) {
+    struct fsys_namenode *linknode;
+
+    linknode = fsys_hash_find_node(te->linkname, FHFF_NONE);
+    namenode->newhash = linknode->newhash;
+    debug(dbg_eachfiledetail, "tarobject hardlink digest=%s", namenode->newhash);
+  }
+}
+
+static void
+tarobject_set_mtime(struct tar_entry *te, const char *path)
+{
+  struct timeval tv[2];
+
+  tv[0].tv_sec = currenttime;
+  tv[0].tv_usec = 0;
+  tv[1].tv_sec = te->mtime;
+  tv[1].tv_usec = 0;
+
+  if (te->type == TAR_FILETYPE_SYMLINK) {
+#ifdef HAVE_LUTIMES
+    if (lutimes(path, tv) && errno != ENOSYS)
+      ohshite(_("error setting timestamps of '%.255s'"), path);
+#endif
+  } else {
+    if (utimes(path, tv))
+      ohshite(_("error setting timestamps of '%.255s'"), path);
+  }
+}
+
+static void
+tarobject_set_perms(struct tar_entry *te, const char *path, struct file_stat *st)
+{
+  int rc;
+
+  if (te->type == TAR_FILETYPE_FILE)
+    return; /* Already handled using the file descriptor. */
+
+  if (te->type == TAR_FILETYPE_SYMLINK) {
+    rc = lchown(path, st->uid, st->gid);
+    if (forcible_nonroot_error(rc))
+      ohshite(_("error setting ownership of symlink '%.255s'"), path);
+  } else {
+    rc = chown(path, st->uid, st->gid);
+    if (forcible_nonroot_error(rc))
+      ohshite(_("error setting ownership of '%.255s'"), path);
+    rc = chmod(path, st->mode & ~S_IFMT);
+    if (forcible_nonroot_error(rc))
+      ohshite(_("error setting permissions of '%.255s'"), path);
+  }
+}
+
+static void
+tarobject_set_se_context(const char *matchpath, const char *path, mode_t mode)
+{
+  dpkg_selabel_set_context(matchpath, path, mode);
+}
+
+static void
+tarobject_matches(struct tarcontext *tc,
+                  const char *fn_old, struct stat *stab, char *oldhash,
+                  const char *fn_new, struct tar_entry *te,
+                  struct fsys_namenode *namenode)
+{
+  char *linkname;
+  ssize_t linksize;
+
+  debug(dbg_eachfiledetail, "tarobject matches on-disk object?");
+
+  switch (te->type) {
+  case TAR_FILETYPE_DIR:
+    /* Nothing to check for a new directory. */
+    return;
+  case TAR_FILETYPE_SYMLINK:
+    /* Symlinks to existing dirs have already been dealt with, only
+     * remain real symlinks where we can compare the target. */
+    if (!S_ISLNK(stab->st_mode))
+      break;
+    linkname = m_malloc(stab->st_size + 1);
+    linksize = readlink(fn_old, linkname, stab->st_size + 1);
+    if (linksize < 0)
+      ohshite(_("unable to read link '%.255s'"), fn_old);
+    else if (linksize > stab->st_size)
+      ohshit(_("symbolic link '%.250s' size has changed from %jd to %zd"),
+             fn_old, (intmax_t)stab->st_size, linksize);
+    else if (linksize < stab->st_size)
+      warning(_("symbolic link '%.250s' size has changed from %jd to %zd"),
+             fn_old, (intmax_t)stab->st_size, linksize);
+    linkname[linksize] = '\0';
+    if (strcmp(linkname, te->linkname) == 0) {
+      free(linkname);
+      return;
+    } else {
+      free(linkname);
+    }
+    break;
+  case TAR_FILETYPE_CHARDEV:
+    if (S_ISCHR(stab->st_mode) && stab->st_rdev == te->dev)
+      return;
+    break;
+  case TAR_FILETYPE_BLOCKDEV:
+    if (S_ISBLK(stab->st_mode) && stab->st_rdev == te->dev)
+      return;
+    break;
+  case TAR_FILETYPE_FIFO:
+    if (S_ISFIFO(stab->st_mode))
+      return;
+    break;
+  case TAR_FILETYPE_HARDLINK:
+    /* Fall through. */
+  case TAR_FILETYPE_FILE:
+    /* Only check metadata for non-conffiles. */
+    if (!(namenode->flags & FNNF_NEW_CONFF) &&
+        !(S_ISREG(stab->st_mode) && te->size == stab->st_size))
+      break;
+    if (strcmp(oldhash, namenode->newhash) == 0)
+      return;
+    break;
+  default:
+    internerr("unknown tar type '%d', but already checked", te->type);
+  }
+
+  forcibleerr(FORCE_OVERWRITE,
+              _("trying to overwrite shared '%.250s', which is different "
+                "from other instances of package %.250s"),
+              namenode->name, pkg_name(tc->pkg, pnaw_nonambig));
+}
+
+void setupfnamevbs(const char *filename) {
+  varbuf_rollback(&fname_state);
+  varbuf_add_str(&fnamevb, filename);
+  varbuf_end_str(&fnamevb);
+
+  varbuf_rollback(&fnametmp_state);
+  varbuf_add_str(&fnametmpvb, filename);
+  varbuf_add_str(&fnametmpvb, DPKGTEMPEXT);
+  varbuf_end_str(&fnametmpvb);
+
+  varbuf_rollback(&fnamenew_state);
+  varbuf_add_str(&fnamenewvb, filename);
+  varbuf_add_str(&fnamenewvb, DPKGNEWEXT);
+  varbuf_end_str(&fnamenewvb);
+
+  debug(dbg_eachfiledetail, "setupvnamevbs main='%s' tmp='%s' new='%s'",
+        fnamevb.buf, fnametmpvb.buf, fnamenewvb.buf);
+}
+
+static bool
+linktosameexistingdir(const struct tar_entry *ti, const char *fname,
+                      struct varbuf *symlinkfn)
+{
+  struct stat oldstab, newstab;
+  int statr;
+
+  statr= stat(fname, &oldstab);
+  if (statr) {
+    if (!(errno == ENOENT || errno == ELOOP || errno == ENOTDIR))
+      ohshite(_("failed to stat (dereference) existing symlink '%.250s'"),
+              fname);
+    return false;
+  }
+  if (!S_ISDIR(oldstab.st_mode))
+    return false;
+
+  /* But is it to the same dir? */
+  if (ti->linkname[0] == '/') {
+    varbuf_set_str(symlinkfn, dpkg_fsys_get_dir());
+  } else {
+    const char *lastslash;
+
+    lastslash= strrchr(fname, '/');
+    if (lastslash == NULL)
+      internerr("tar entry filename '%s' does not contain '/'", fname);
+    varbuf_set_buf(symlinkfn, fname, (lastslash - fname) + 1);
+  }
+  varbuf_add_str(symlinkfn, ti->linkname);
+  varbuf_end_str(symlinkfn);
+
+  statr= stat(symlinkfn->buf, &newstab);
+  if (statr) {
+    if (!(errno == ENOENT || errno == ELOOP || errno == ENOTDIR))
+      ohshite(_("failed to stat (dereference) proposed new symlink target"
+                " '%.250s' for symlink '%.250s'"), symlinkfn->buf, fname);
+    return false;
+  }
+  if (!S_ISDIR(newstab.st_mode))
+    return false;
+  if (newstab.st_dev != oldstab.st_dev ||
+      newstab.st_ino != oldstab.st_ino)
+    return false;
+  return true;
+}
+
+int
+tarobject(struct tar_archive *tar, struct tar_entry *ti)
+{
+  static struct varbuf conffderefn, symlinkfn;
+  const char *usename;
+  struct fsys_namenode *namenode, *usenode;
+
+  struct conffile *conff;
+  struct tarcontext *tc = tar->ctx;
+  bool existingdir, keepexisting;
+  bool refcounting;
+  char oldhash[MD5HASHLEN + 1];
+  int statr;
+  struct stat stab, stabtmp;
+  struct file_stat nodestat;
+  struct fsys_namenode_list *nifd, **oldnifd;
+  struct pkgset *divpkgset;
+  struct pkginfo *otherpkg;
+
+  tar_entry_update_from_system(ti);
+
+  /* Perform some sanity checks on the tar entry. */
+  if (strchr(ti->name, '\n'))
+    ohshit(_("newline not allowed in archive object name '%.255s'"), ti->name);
+
+  namenode = fsys_hash_find_node(ti->name, FHFF_NONE);
+
+  if (namenode->flags & FNNF_RM_CONFF_ON_UPGRADE)
+    ohshit(_("conffile '%s' marked for removal on upgrade, shipped in package"),
+           ti->name);
+
+  /* Append to list of files.
+   * The trailing ‘/’ put on the end of names in tarfiles has already
+   * been stripped by tar_extractor(). */
+  oldnifd = tc->newfiles_queue->tail;
+  nifd = tar_fsys_namenode_queue_push(tc->newfiles_queue, namenode);
+  nifd->namenode->flags |= FNNF_NEW_INARCHIVE;
+
+  debug(dbg_eachfile,
+        "tarobject ti->name='%s' mode=%lo owner=%u:%u type=%d(%c)"
+        " ti->linkname='%s' namenode='%s' flags=%o instead='%s'",
+        ti->name, (long)ti->stat.mode,
+        (unsigned)ti->stat.uid, (unsigned)ti->stat.gid,
+        ti->type,
+        ti->type >= '0' && ti->type <= '6' ? "-hlcbdp"[ti->type - '0'] : '?',
+        ti->linkname,
+        nifd->namenode->name, nifd->namenode->flags,
+        nifd->namenode->divert && nifd->namenode->divert->useinstead
+        ? nifd->namenode->divert->useinstead->name : "<none>");
+
+  if (nifd->namenode->divert && nifd->namenode->divert->camefrom) {
+    divpkgset = nifd->namenode->divert->pkgset;
+
+    if (divpkgset) {
+      forcibleerr(FORCE_OVERWRITE_DIVERTED,
+                  _("trying to overwrite '%.250s', which is the "
+                    "diverted version of '%.250s' (package: %.100s)"),
+                  nifd->namenode->name, nifd->namenode->divert->camefrom->name,
+                  divpkgset->name);
+    } else {
+      forcibleerr(FORCE_OVERWRITE_DIVERTED,
+                  _("trying to overwrite '%.250s', which is the "
+                    "diverted version of '%.250s'"),
+                  nifd->namenode->name, nifd->namenode->divert->camefrom->name);
+    }
+  }
+
+  if (nifd->namenode->statoverride) {
+    nodestat = *nifd->namenode->statoverride;
+    nodestat.mode |= ti->stat.mode & S_IFMT;
+  } else {
+    nodestat = ti->stat;
+  }
+
+  usenode = namenodetouse(nifd->namenode, tc->pkg, &tc->pkg->available);
+  usename = usenode->name;
+
+  trig_file_activate(usenode, tc->pkg);
+
+  if (nifd->namenode->flags & FNNF_NEW_CONFF) {
+    /* If it's a conffile we have to extract it next to the installed
+     * version (i.e. we do the usual link-following). */
+    if (conffderef(tc->pkg, &conffderefn, usename))
+      usename= conffderefn.buf;
+    debug(dbg_conff, "tarobject FNNF_NEW_CONFF deref='%s'", usename);
+  }
+
+  setupfnamevbs(usename);
+
+  statr= lstat(fnamevb.buf,&stab);
+  if (statr) {
+    /* The lstat failed. */
+    if (errno != ENOENT && errno != ENOTDIR)
+      ohshite(_("unable to stat '%.255s' (which was about to be installed)"),
+              ti->name);
+    /* OK, so it doesn't exist.
+     * However, it's possible that we were in the middle of some other
+     * backup/restore operation and were rudely interrupted.
+     * So, we see if we have .dpkg-tmp, and if so we restore it. */
+    if (rename(fnametmpvb.buf,fnamevb.buf)) {
+      /* Trying to remove a directory or a file on a read-only filesystem,
+       * even if non-existent, always returns EROFS. */
+      if (errno == EROFS) {
+        /* If the file does not exist the access() function will remap the
+         * EROFS into an ENOENT, otherwise restore EROFS to fail with that. */
+        if (access(fnametmpvb.buf, F_OK) == 0)
+          errno = EROFS;
+      }
+
+      if (errno != ENOENT && errno != ENOTDIR)
+        ohshite(_("unable to clean up mess surrounding '%.255s' before "
+                  "installing another version"), ti->name);
+      debug(dbg_eachfiledetail,"tarobject nonexistent");
+    } else {
+      debug(dbg_eachfiledetail,"tarobject restored tmp to main");
+      statr= lstat(fnamevb.buf,&stab);
+      if (statr)
+        ohshite(_("unable to stat restored '%.255s' before installing"
+                  " another version"), ti->name);
+    }
+  } else {
+    debug(dbg_eachfiledetail,"tarobject already exists");
+  }
+
+  /* Check to see if it's a directory or link to one and we don't need to
+   * do anything. This has to be done now so that we don't die due to
+   * a file overwriting conflict. */
+  existingdir = false;
+  switch (ti->type) {
+  case TAR_FILETYPE_SYMLINK:
+    /* If it's already an existing directory, do nothing. */
+    if (!statr && S_ISDIR(stab.st_mode)) {
+      debug(dbg_eachfiledetail, "tarobject symlink exists as directory");
+      existingdir = true;
+    } else if (!statr && S_ISLNK(stab.st_mode)) {
+      if (linktosameexistingdir(ti, fnamevb.buf, &symlinkfn))
+        existingdir = true;
+    }
+    break;
+  case TAR_FILETYPE_DIR:
+    /* If it's already an existing directory, do nothing. */
+    if (!stat(fnamevb.buf,&stabtmp) && S_ISDIR(stabtmp.st_mode)) {
+      debug(dbg_eachfiledetail, "tarobject directory exists");
+      existingdir = true;
+    }
+    break;
+  case TAR_FILETYPE_FILE:
+  case TAR_FILETYPE_CHARDEV:
+  case TAR_FILETYPE_BLOCKDEV:
+  case TAR_FILETYPE_FIFO:
+  case TAR_FILETYPE_HARDLINK:
+    break;
+  default:
+    ohshit(_("archive contained object '%.255s' of unknown type 0x%x"),
+           ti->name, ti->type);
+  }
+
+  keepexisting = false;
+  refcounting = false;
+  if (!existingdir) {
+    struct fsys_node_pkgs_iter *iter;
+
+    iter = fsys_node_pkgs_iter_new(nifd->namenode);
+    while ((otherpkg = fsys_node_pkgs_iter_next(iter))) {
+      if (otherpkg == tc->pkg)
+        continue;
+      debug(dbg_eachfile, "tarobject ... found in %s",
+            pkg_name(otherpkg, pnaw_always));
+
+      /* A pkgset can share files between its instances. Overwriting
+       * is allowed when they are not getting in sync, otherwise the
+       * file content must match the installed file. */
+      if (otherpkg->set == tc->pkg->set &&
+          otherpkg->installed.multiarch == PKG_MULTIARCH_SAME &&
+          tc->pkg->available.multiarch == PKG_MULTIARCH_SAME) {
+        if (statr == 0 && tc->pkgset_getting_in_sync)
+          refcounting = true;
+        debug(dbg_eachfiledetail, "tarobject ... shared with %s %s (syncing=%d)",
+              pkg_name(otherpkg, pnaw_always),
+              versiondescribe_c(&otherpkg->installed.version, vdew_nonambig),
+              tc->pkgset_getting_in_sync);
+        continue;
+      }
+
+      if (nifd->namenode->divert && nifd->namenode->divert->useinstead) {
+        /* Right, so we may be diverting this file. This makes the conflict
+         * OK iff one of us is the diverting package (we don't need to
+         * check for both being the diverting package, obviously). */
+        divpkgset = nifd->namenode->divert->pkgset;
+        debug(dbg_eachfile, "tarobject ... diverted, divpkgset=%s",
+              divpkgset ? divpkgset->name : "<none>");
+        if (otherpkg->set == divpkgset || tc->pkg->set == divpkgset)
+          continue;
+      }
+
+      /* If the new object is a directory and the previous object does
+       * not exist assume it's also a directory and skip further checks.
+       * XXX: Ideally with more information about the installed files we
+       * could perform more clever checks. */
+      if (statr != 0 && ti->type == TAR_FILETYPE_DIR) {
+        debug(dbg_eachfile, "tarobject ... assuming shared directory");
+        continue;
+      }
+
+      ensure_package_clientdata(otherpkg);
+
+      /* Nope? Hmm, file conflict, perhaps. Check Replaces. */
+      switch (otherpkg->clientdata->replacingfilesandsaid) {
+      case 2:
+        keepexisting = true;
+        /* Fall through. */
+      case 1:
+        continue;
+      }
+
+      /* Is the package with the conflicting file in the “config files only”
+       * state? If so it must be a config file and we can silently take it
+       * over. */
+      if (otherpkg->status == PKG_STAT_CONFIGFILES)
+        continue;
+
+      /* Perhaps we're removing a conflicting package? */
+      if (otherpkg->clientdata->istobe == PKG_ISTOBE_REMOVE)
+        continue;
+
+      /* Is the file an obsolete conffile in the other package
+       * and a conffile in the new package? */
+      if ((nifd->namenode->flags & FNNF_NEW_CONFF) &&
+          !statr && S_ISREG(stab.st_mode)) {
+        for (conff = otherpkg->installed.conffiles;
+             conff;
+             conff = conff->next) {
+          if (!conff->obsolete)
+            continue;
+          if (strcmp(conff->name, nifd->namenode->name) == 0)
+            break;
+        }
+        if (conff) {
+          debug(dbg_eachfiledetail, "tarobject other's obsolete conffile");
+          /* process_archive() will have copied its hash already. */
+          continue;
+        }
+      }
+
+      if (does_replace(tc->pkg, &tc->pkg->available,
+                       otherpkg, &otherpkg->installed)) {
+        printf(_("Replacing files in old package %s (%s) ...\n"),
+               pkg_name(otherpkg, pnaw_nonambig),
+               versiondescribe(&otherpkg->installed.version, vdew_nonambig));
+        otherpkg->clientdata->replacingfilesandsaid = 1;
+      } else if (does_replace(otherpkg, &otherpkg->installed,
+                              tc->pkg, &tc->pkg->available)) {
+        printf(_("Replaced by files in installed package %s (%s) ...\n"),
+               pkg_name(otherpkg, pnaw_nonambig),
+               versiondescribe(&otherpkg->installed.version, vdew_nonambig));
+        otherpkg->clientdata->replacingfilesandsaid = 2;
+        nifd->namenode->flags &= ~FNNF_NEW_INARCHIVE;
+        keepexisting = true;
+      } else {
+        /* At this point we are replacing something without a Replaces. */
+        if (!statr && S_ISDIR(stab.st_mode)) {
+          forcibleerr(FORCE_OVERWRITE_DIR,
+                      _("trying to overwrite directory '%.250s' "
+                        "in package %.250s %.250s with nondirectory"),
+                      nifd->namenode->name, pkg_name(otherpkg, pnaw_nonambig),
+                      versiondescribe(&otherpkg->installed.version,
+                                      vdew_nonambig));
+        } else {
+          forcibleerr(FORCE_OVERWRITE,
+                      _("trying to overwrite '%.250s', "
+                        "which is also in package %.250s %.250s"),
+                      nifd->namenode->name, pkg_name(otherpkg, pnaw_nonambig),
+                      versiondescribe(&otherpkg->installed.version,
+                                      vdew_nonambig));
+        }
+      }
+    }
+    fsys_node_pkgs_iter_free(iter);
+  }
+
+  if (keepexisting) {
+    if (nifd->namenode->flags & FNNF_NEW_CONFF)
+      nifd->namenode->flags |= FNNF_OBS_CONFF;
+    tar_fsys_namenode_queue_pop(tc->newfiles_queue, oldnifd, nifd);
+    tarobject_skip_entry(tc, ti);
+    return 0;
+  }
+
+  if (filter_should_skip(ti)) {
+    nifd->namenode->flags &= ~FNNF_NEW_INARCHIVE;
+    nifd->namenode->flags |= FNNF_FILTERED;
+    tarobject_skip_entry(tc, ti);
+
+    return 0;
+  }
+
+  if (existingdir)
+    return 0;
+
+  /* Compute the hash of the previous object, before we might replace it
+   * with the new version on forced overwrites. */
+  if (refcounting) {
+    debug(dbg_eachfiledetail, "tarobject computing on-disk file '%s' digest, refcounting",
+          fnamevb.buf);
+    if (nifd->namenode->flags & FNNF_NEW_CONFF) {
+      md5hash_prev_conffile(tc->pkg, oldhash, fnamenewvb.buf, nifd->namenode);
+    } else if (S_ISREG(stab.st_mode)) {
+      md5hash(tc->pkg, oldhash, fnamevb.buf);
+    } else {
+      strcpy(oldhash, EMPTYHASHFLAG);
+    }
+  }
+
+  if (refcounting && !in_force(FORCE_OVERWRITE)) {
+    /* If we are not forced to overwrite the path and are refcounting,
+     * just compute the hash w/o extracting the object. */
+    tarobject_hash(tc, ti, nifd->namenode);
+  } else {
+    /* Now, at this stage we want to make sure neither of .dpkg-new and
+     * .dpkg-tmp are hanging around. */
+    path_remove_tree(fnamenewvb.buf);
+    path_remove_tree(fnametmpvb.buf);
+
+    /* Now we start to do things that we need to be able to undo
+     * if something goes wrong. Watch out for the CLEANUP comments to
+     * keep an eye on what's installed on the disk at each point. */
+    push_cleanup(cu_installnew, ~ehflag_normaltidy, 1, nifd->namenode);
+
+    /*
+     * CLEANUP: Now we either have the old file on the disk, or not, in
+     * its original filename.
+     */
+
+    /* Extract whatever it is as .dpkg-new ... */
+    tarobject_extract(tc, ti, fnamenewvb.buf, &nodestat, nifd->namenode);
+  }
+
+  /* For shared files, check now if the object matches. */
+  if (refcounting)
+    tarobject_matches(tc, fnamevb.buf, &stab, oldhash,
+                          fnamenewvb.buf, ti, nifd->namenode);
+
+  /* If we didn't extract anything, there's nothing else to do. */
+  if (refcounting && !in_force(FORCE_OVERWRITE))
+    return 0;
+
+  tarobject_set_perms(ti, fnamenewvb.buf, &nodestat);
+  tarobject_set_mtime(ti, fnamenewvb.buf);
+  tarobject_set_se_context(fnamevb.buf, fnamenewvb.buf, nodestat.mode);
+
+  /*
+   * CLEANUP: Now we have extracted the new object in .dpkg-new (or,
+   * if the file already exists as a directory and we were trying to
+   * extract a directory or symlink, we returned earlier, so we don't
+   * need to worry about that here).
+   *
+   * The old file is still in the original filename,
+   */
+
+  /* First, check to see if it's a conffile. If so we don't install
+   * it now - we leave it in .dpkg-new for --configure to take care of. */
+  if (nifd->namenode->flags & FNNF_NEW_CONFF) {
+    debug(dbg_conffdetail,"tarobject conffile extracted");
+    nifd->namenode->flags |= FNNF_ELIDE_OTHER_LISTS;
+    return 0;
+  }
+
+  /* Now we move the old file out of the way, the backup file will
+   * be deleted later. */
+  if (statr) {
+    /* Don't try to back it up if it didn't exist. */
+    debug(dbg_eachfiledetail,"tarobject new - no backup");
+  } else {
+    if (ti->type == TAR_FILETYPE_DIR || S_ISDIR(stab.st_mode)) {
+      /* One of the two is a directory - can't do atomic install. */
+      debug(dbg_eachfiledetail,"tarobject directory, nonatomic");
+      nifd->namenode->flags |= FNNF_NO_ATOMIC_OVERWRITE;
+      if (rename(fnamevb.buf,fnametmpvb.buf))
+        ohshite(_("unable to move aside '%.255s' to install new version"),
+                ti->name);
+    } else if (S_ISLNK(stab.st_mode)) {
+      ssize_t symlink_len;
+      int rc;
+
+      /* We can't make a symlink with two hardlinks, so we'll have to
+       * copy it. (Pretend that making a copy of a symlink is the same
+       * as linking to it.) */
+      varbuf_reset(&symlinkfn);
+      varbuf_grow(&symlinkfn, stab.st_size + 1);
+      symlink_len = readlink(fnamevb.buf, symlinkfn.buf, symlinkfn.size);
+      if (symlink_len < 0)
+        ohshite(_("unable to read link '%.255s'"), ti->name);
+      else if (symlink_len > stab.st_size)
+        ohshit(_("symbolic link '%.250s' size has changed from %jd to %zd"),
+               fnamevb.buf, (intmax_t)stab.st_size, symlink_len);
+      else if (symlink_len < stab.st_size)
+        warning(_("symbolic link '%.250s' size has changed from %jd to %zd"),
+               fnamevb.buf, (intmax_t)stab.st_size, symlink_len);
+      varbuf_trunc(&symlinkfn, symlink_len);
+      varbuf_end_str(&symlinkfn);
+      if (symlink(symlinkfn.buf,fnametmpvb.buf))
+        ohshite(_("unable to make backup symlink for '%.255s'"), ti->name);
+      rc = lchown(fnametmpvb.buf, stab.st_uid, stab.st_gid);
+      if (forcible_nonroot_error(rc))
+        ohshite(_("unable to chown backup symlink for '%.255s'"), ti->name);
+      tarobject_set_se_context(fnamevb.buf, fnametmpvb.buf, stab.st_mode);
+    } else {
+      debug(dbg_eachfiledetail, "tarobject nondirectory, 'link' backup");
+      if (link(fnamevb.buf,fnametmpvb.buf))
+        ohshite(_("unable to make backup link of '%.255s' before installing new version"),
+                ti->name);
+    }
+  }
+
+  /*
+   * CLEANUP: Now the old file is in .dpkg-tmp, and the new file is still
+   * in .dpkg-new.
+   */
+
+  if (ti->type == TAR_FILETYPE_FILE || ti->type == TAR_FILETYPE_HARDLINK ||
+      ti->type == TAR_FILETYPE_SYMLINK) {
+    nifd->namenode->flags |= FNNF_DEFERRED_RENAME;
+
+    debug(dbg_eachfiledetail, "tarobject done and installation deferred");
+  } else {
+    if (rename(fnamenewvb.buf, fnamevb.buf))
+      ohshite(_("unable to install new version of '%.255s'"), ti->name);
+
+    /*
+     * CLEANUP: Now the new file is in the destination file, and the
+     * old file is in .dpkg-tmp to be cleaned up later. We now need
+     * to take a different attitude to cleanup, because we need to
+     * remove the new file.
+     */
+
+    nifd->namenode->flags |= FNNF_PLACED_ON_DISK;
+    nifd->namenode->flags |= FNNF_ELIDE_OTHER_LISTS;
+
+    debug(dbg_eachfiledetail, "tarobject done and installed");
+  }
+
+  return 0;
+}
+
+#if defined(SYNC_FILE_RANGE_WAIT_BEFORE)
+static void
+tar_writeback_barrier(struct fsys_namenode_list *files, struct pkginfo *pkg)
+{
+  struct fsys_namenode_list *cfile;
+
+  for (cfile = files; cfile; cfile = cfile->next) {
+    struct fsys_namenode *usenode;
+    int fd;
+
+    if (!(cfile->namenode->flags & FNNF_DEFERRED_FSYNC))
+      continue;
+
+    usenode = namenodetouse(cfile->namenode, pkg, &pkg->available);
+
+    setupfnamevbs(usenode->name);
+
+    fd = open(fnamenewvb.buf, O_WRONLY);
+    if (fd < 0)
+      ohshite(_("unable to open '%.255s'"), fnamenewvb.buf);
+    /* Ignore the return code as it should be considered equivalent to an
+     * asynchronous hint for the kernel, we are doing an fsync() later on
+     * anyway. */
+    sync_file_range(fd, 0, 0, SYNC_FILE_RANGE_WAIT_BEFORE);
+    if (close(fd))
+      ohshite(_("error closing/writing '%.255s'"), fnamenewvb.buf);
+  }
+}
+#else
+static void
+tar_writeback_barrier(struct fsys_namenode_list *files, struct pkginfo *pkg)
+{
+}
+#endif
+
+void
+tar_deferred_extract(struct fsys_namenode_list *files, struct pkginfo *pkg)
+{
+  struct fsys_namenode_list *cfile;
+  struct fsys_namenode *usenode;
+
+  tar_writeback_barrier(files, pkg);
+
+  for (cfile = files; cfile; cfile = cfile->next) {
+    debug(dbg_eachfile, "deferred extract of '%.255s'", cfile->namenode->name);
+
+    if (!(cfile->namenode->flags & FNNF_DEFERRED_RENAME))
+      continue;
+
+    usenode = namenodetouse(cfile->namenode, pkg, &pkg->available);
+
+    setupfnamevbs(usenode->name);
+
+    if (cfile->namenode->flags & FNNF_DEFERRED_FSYNC) {
+      int fd;
+
+      debug(dbg_eachfiledetail, "deferred extract needs fsync");
+
+      fd = open(fnamenewvb.buf, O_WRONLY);
+      if (fd < 0)
+        ohshite(_("unable to open '%.255s'"), fnamenewvb.buf);
+      if (fsync(fd))
+        ohshite(_("unable to sync file '%.255s'"), fnamenewvb.buf);
+      if (close(fd))
+        ohshite(_("error closing/writing '%.255s'"), fnamenewvb.buf);
+
+      cfile->namenode->flags &= ~FNNF_DEFERRED_FSYNC;
+    }
+
+    debug(dbg_eachfiledetail, "deferred extract needs rename");
+
+    if (rename(fnamenewvb.buf, fnamevb.buf))
+      ohshite(_("unable to install new version of '%.255s'"),
+              cfile->namenode->name);
+
+    cfile->namenode->flags &= ~FNNF_DEFERRED_RENAME;
+
+    /*
+     * CLEANUP: Now the new file is in the destination file, and the
+     * old file is in .dpkg-tmp to be cleaned up later. We now need
+     * to take a different attitude to cleanup, because we need to
+     * remove the new file.
+     */
+
+    cfile->namenode->flags |= FNNF_PLACED_ON_DISK;
+    cfile->namenode->flags |= FNNF_ELIDE_OTHER_LISTS;
+
+    debug(dbg_eachfiledetail, "deferred extract done and installed");
+  }
+}
+
+void
+enqueue_deconfigure(struct pkginfo *pkg, struct pkginfo *pkg_removal,
+                    enum pkgwant reason)
+{
+  struct pkg_deconf_list *newdeconf;
+
+  ensure_package_clientdata(pkg);
+  pkg->clientdata->istobe = PKG_ISTOBE_DECONFIGURE;
+  newdeconf = m_malloc(sizeof(*newdeconf));
+  newdeconf->next = deconfigure;
+  newdeconf->pkg = pkg;
+  newdeconf->pkg_removal = pkg_removal;
+  newdeconf->reason = reason;
+  deconfigure = newdeconf;
+}
+
+void
+clear_deconfigure_queue(void)
+{
+  struct pkg_deconf_list *deconf, *deconf_next;
+
+  for (deconf = deconfigure; deconf; deconf = deconf_next) {
+    deconf_next = deconf->next;
+    free(deconf);
+  }
+  deconfigure = NULL;
+}
+
+/**
+ * Try if we can deconfigure the package for installation and queue it if so.
+ *
+ * This function gets called in the Breaks context, when trying to install
+ * a package that might require another to be deconfigured to be able to
+ * proceed.
+ *
+ * First checks whether the pdep is forced.
+ *
+ * @retval 0 Not possible (why is printed).
+ * @retval 1 Deconfiguration queued ok (no message printed).
+ * @retval 2 Forced (no deconfiguration needed, why is printed).
+ */
+static int
+try_deconfigure_can(struct pkginfo *pkg, struct deppossi *pdep,
+                    struct pkginfo *pkg_install, const char *why)
+{
+  if (force_breaks(pdep)) {
+    warning(_("ignoring dependency problem with installation of %s:\n%s"),
+            pkgbin_name(pkg_install, &pkg->available, pnaw_nonambig), why);
+    return 2;
+  } else if (f_autodeconf) {
+    enqueue_deconfigure(pkg, NULL, PKG_WANT_INSTALL);
+    return 1;
+  } else {
+    notice(_("no, cannot proceed with installation of %s (--auto-deconfigure will help):\n%s"),
+           pkgbin_name(pkg_install, &pkg->available, pnaw_nonambig), why);
+    return 0;
+  }
+}
+
+/**
+ * Try if we can deconfigure the package for removal and queue it if so.
+ *
+ * This function gets called in the Conflicts+Depends context, when trying
+ * to install a package that might require another to be fully removed to
+ * be able to proceed.
+ *
+ * First checks whether the pdep is forced, then if auto-configure is enabled
+ * we make sure Essential and Protected are not allowed to be removed unless
+ * forced.
+ *
+ * @retval 0 Not possible (why is printed).
+ * @retval 1 Deconfiguration queued ok (no message printed).
+ * @retval 2 Forced (no deconfiguration needed, why is printed).
+ */
+static int
+try_remove_can(struct deppossi *pdep,
+               struct pkginfo *pkg_removal, const char *why)
+{
+  struct pkginfo *pkg = pdep->up->up;
+
+  if (force_depends(pdep)) {
+    warning(_("ignoring dependency problem with removal of %s:\n%s"),
+            pkg_name(pkg_removal, pnaw_nonambig), why);
+    return 2;
+  } else if (f_autodeconf) {
+    if (pkg->installed.essential) {
+      if (in_force(FORCE_REMOVE_ESSENTIAL)) {
+        warning(_("considering deconfiguration of essential\n"
+                  " package %s, to enable removal of %s"),
+                pkg_name(pkg, pnaw_nonambig), pkg_name(pkg_removal, pnaw_nonambig));
+      } else {
+        notice(_("no, %s is essential, will not deconfigure\n"
+                 " it in order to enable removal of %s"),
+               pkg_name(pkg, pnaw_nonambig), pkg_name(pkg_removal, pnaw_nonambig));
+        return 0;
+      }
+    }
+    if (pkg->installed.is_protected) {
+      if (in_force(FORCE_REMOVE_PROTECTED)) {
+        warning(_("considering deconfiguration of protected\n"
+                  " package %s, to enable removal of %s"),
+                pkg_name(pkg, pnaw_nonambig), pkg_name(pkg_removal, pnaw_nonambig));
+      } else {
+        notice(_("no, %s is protected, will not deconfigure\n"
+                 " it in order to enable removal of %s"),
+               pkg_name(pkg, pnaw_nonambig), pkg_name(pkg_removal, pnaw_nonambig));
+        return 0;
+      }
+    }
+
+    enqueue_deconfigure(pkg, pkg_removal, PKG_WANT_DEINSTALL);
+    return 1;
+  } else {
+    notice(_("no, cannot proceed with removal of %s (--auto-deconfigure will help):\n%s"),
+           pkg_name(pkg_removal, pnaw_nonambig), why);
+    return 0;
+  }
+}
+
+void check_breaks(struct dependency *dep, struct pkginfo *pkg,
+                  const char *pfilename) {
+  struct pkginfo *fixbydeconf;
+  struct varbuf why = VARBUF_INIT;
+  int ok;
+
+  fixbydeconf = NULL;
+  if (depisok(dep, &why, &fixbydeconf, NULL, false)) {
+    varbuf_destroy(&why);
+    return;
+  }
+
+  varbuf_end_str(&why);
+
+  if (fixbydeconf && f_autodeconf) {
+    ensure_package_clientdata(fixbydeconf);
+
+    if (fixbydeconf->clientdata->istobe != PKG_ISTOBE_NORMAL)
+      internerr("package %s being fixed by deconf is not to be normal, "
+                "is to be %d",
+                pkg_name(pkg, pnaw_always), fixbydeconf->clientdata->istobe);
+
+    notice(_("considering deconfiguration of %s, which would be broken by installation of %s ..."),
+           pkg_name(fixbydeconf, pnaw_nonambig),
+           pkgbin_name(pkg, &pkg->available, pnaw_nonambig));
+
+    ok = try_deconfigure_can(fixbydeconf, dep->list, pkg, why.buf);
+    if (ok == 1) {
+      notice(_("yes, will deconfigure %s (broken by %s)"),
+             pkg_name(fixbydeconf, pnaw_nonambig),
+             pkgbin_name(pkg, &pkg->available, pnaw_nonambig));
+    }
+  } else {
+    notice(_("regarding %s containing %s:\n%s"), pfilename,
+           pkgbin_name(pkg, &pkg->available, pnaw_nonambig), why.buf);
+    ok= 0;
+  }
+  varbuf_destroy(&why);
+  if (ok > 0) return;
+
+  if (force_breaks(dep->list)) {
+    warning(_("ignoring breakage, may proceed anyway!"));
+    return;
+  }
+
+  if (fixbydeconf && !f_autodeconf) {
+    ohshit(_("installing %.250s would break %.250s, and\n"
+             " deconfiguration is not permitted (--auto-deconfigure might help)"),
+           pkgbin_name(pkg, &pkg->available, pnaw_nonambig),
+           pkg_name(fixbydeconf, pnaw_nonambig));
+  } else {
+    ohshit(_("installing %.250s would break existing software"),
+           pkgbin_name(pkg, &pkg->available, pnaw_nonambig));
+  }
+}
+
+void check_conflict(struct dependency *dep, struct pkginfo *pkg,
+                    const char *pfilename) {
+  struct pkginfo *fixbyrm;
+  struct deppossi *pdep, flagdeppossi = { 0 };
+  struct varbuf conflictwhy = VARBUF_INIT, removalwhy = VARBUF_INIT;
+  struct dependency *providecheck;
+
+  fixbyrm = NULL;
+  if (depisok(dep, &conflictwhy, &fixbyrm, NULL, false)) {
+    varbuf_destroy(&conflictwhy);
+    varbuf_destroy(&removalwhy);
+    return;
+  }
+  if (fixbyrm) {
+    ensure_package_clientdata(fixbyrm);
+    if (fixbyrm->clientdata->istobe == PKG_ISTOBE_INSTALLNEW) {
+      fixbyrm= dep->up;
+      ensure_package_clientdata(fixbyrm);
+    }
+    if (((pkg->available.essential || pkg->available.is_protected) &&
+         (fixbyrm->installed.essential || fixbyrm->installed.is_protected)) ||
+        (((fixbyrm->want != PKG_WANT_INSTALL &&
+           fixbyrm->want != PKG_WANT_HOLD) ||
+          does_replace(pkg, &pkg->available, fixbyrm, &fixbyrm->installed)) &&
+         ((!fixbyrm->installed.essential || in_force(FORCE_REMOVE_ESSENTIAL)) ||
+          (!fixbyrm->installed.is_protected || in_force(FORCE_REMOVE_PROTECTED))))) {
+      if (fixbyrm->clientdata->istobe != PKG_ISTOBE_NORMAL &&
+          fixbyrm->clientdata->istobe != PKG_ISTOBE_DECONFIGURE)
+        internerr("package %s to be fixed by removal is not to be normal "
+                  "nor deconfigure, is to be %d",
+                  pkg_name(pkg, pnaw_always), fixbyrm->clientdata->istobe);
+      fixbyrm->clientdata->istobe = PKG_ISTOBE_REMOVE;
+      notice(_("considering removing %s in favour of %s ..."),
+             pkg_name(fixbyrm, pnaw_nonambig),
+             pkgbin_name(pkg, &pkg->available, pnaw_nonambig));
+      if (!(fixbyrm->status == PKG_STAT_INSTALLED ||
+            fixbyrm->status == PKG_STAT_TRIGGERSPENDING ||
+            fixbyrm->status == PKG_STAT_TRIGGERSAWAITED)) {
+        notice(_("%s is not properly installed; ignoring any dependencies on it"),
+               pkg_name(fixbyrm, pnaw_nonambig));
+        pdep = NULL;
+      } else {
+        for (pdep = fixbyrm->set->depended.installed;
+             pdep;
+             pdep = pdep->rev_next) {
+          if (pdep->up->type != dep_depends && pdep->up->type != dep_predepends)
+            continue;
+          if (depisok(pdep->up, &removalwhy, NULL, NULL, false))
+            continue;
+          varbuf_end_str(&removalwhy);
+          if (!try_remove_can(pdep,fixbyrm,removalwhy.buf))
+            break;
+        }
+        if (!pdep) {
+          /* If we haven't found a reason not to yet, let's look some more. */
+          for (providecheck= fixbyrm->installed.depends;
+               providecheck;
+               providecheck= providecheck->next) {
+            if (providecheck->type != dep_provides) continue;
+            for (pdep = providecheck->list->ed->depended.installed;
+                 pdep;
+                 pdep = pdep->rev_next) {
+              if (pdep->up->type != dep_depends && pdep->up->type != dep_predepends)
+                continue;
+              if (depisok(pdep->up, &removalwhy, NULL, NULL, false))
+                continue;
+              varbuf_end_str(&removalwhy);
+              notice(_("may have trouble removing %s, as it provides %s ..."),
+                     pkg_name(fixbyrm, pnaw_nonambig),
+                     providecheck->list->ed->name);
+              if (!try_remove_can(pdep,fixbyrm,removalwhy.buf))
+                goto break_from_both_loops_at_once;
+            }
+          }
+        break_from_both_loops_at_once:;
+        }
+      }
+      if (!pdep && skip_due_to_hold(fixbyrm)) {
+        pdep= &flagdeppossi;
+      }
+      if (!pdep && (fixbyrm->eflag & PKG_EFLAG_REINSTREQ)) {
+        if (in_force(FORCE_REMOVE_REINSTREQ)) {
+          notice(_("package %s requires reinstallation, but will "
+                   "remove anyway as you requested"),
+                 pkg_name(fixbyrm, pnaw_nonambig));
+        } else {
+          notice(_("package %s requires reinstallation, will not remove"),
+                 pkg_name(fixbyrm, pnaw_nonambig));
+          pdep= &flagdeppossi;
+        }
+      }
+      if (!pdep) {
+        /* This conflict is OK - we'll remove the conflictor. */
+        enqueue_conflictor(fixbyrm);
+        varbuf_destroy(&conflictwhy); varbuf_destroy(&removalwhy);
+        notice(_("yes, will remove %s in favour of %s"),
+               pkg_name(fixbyrm, pnaw_nonambig),
+               pkgbin_name(pkg, &pkg->available, pnaw_nonambig));
+        return;
+      }
+      /* Put it back. */
+      fixbyrm->clientdata->istobe = PKG_ISTOBE_NORMAL;
+    }
+  }
+  varbuf_end_str(&conflictwhy);
+  notice(_("regarding %s containing %s:\n%s"), pfilename,
+         pkgbin_name(pkg, &pkg->available, pnaw_nonambig), conflictwhy.buf);
+  if (!force_conflicts(dep->list))
+    ohshit(_("conflicting packages - not installing %.250s"),
+           pkgbin_name(pkg, &pkg->available, pnaw_nonambig));
+  warning(_("ignoring conflict, may proceed anyway!"));
+  varbuf_destroy(&conflictwhy);
+
+  return;
+}
+
+void cu_cidir(int argc, void **argv) {
+  char *cidir= (char*)argv[0];
+  char *cidirrest= (char*)argv[1];
+  cidirrest[-1] = '\0';
+  path_remove_tree(cidir);
+  free(cidir);
+}
+
+void cu_fileslist(int argc, void **argv) {
+  tar_pool_release();
+}
+
+int
+archivefiles(const char *const *argv)
+{
+  const char *const *volatile argp;
+  char **volatile arglist = NULL;
+  int i;
+  jmp_buf ejbuf;
+  enum modstatdb_rw msdbflags;
+
+  trigproc_install_hooks();
+
+  if (f_noact)
+    msdbflags = msdbrw_readonly;
+  else if (cipaction->arg_int == act_avail)
+    msdbflags = msdbrw_readonly | msdbrw_available_write;
+  else if (in_force(FORCE_NON_ROOT))
+    msdbflags = msdbrw_write;
+  else
+    msdbflags = msdbrw_needsuperuser;
+
+  modstatdb_open(msdbflags);
+
+  checkpath();
+  pkg_infodb_upgrade();
+
+  log_message("startup archives %s", cipaction->olong);
+
+  if (f_recursive) {
+    const char *const *ap;
+    int nfiles = 0;
+
+    if (!*argv)
+      badusage(_("--%s --recursive needs at least one path argument"),cipaction->olong);
+
+    for (ap = argv; *ap; ap++) {
+      struct treeroot *tree;
+      struct treenode *node;
+
+      tree = treewalk_open((const char *)*ap, TREEWALK_FOLLOW_LINKS, NULL);
+
+      while ((node = treewalk_next(tree))) {
+        const char *nodename;
+
+        if (!S_ISREG(treenode_get_mode(node)))
+          continue;
+
+        /* Check if it looks like a .deb file. */
+        nodename = treenode_get_pathname(node);
+        if (strcmp(nodename + strlen(nodename) - 4, DEBEXT) != 0)
+          continue;
+
+        arglist = m_realloc(arglist, sizeof(char *) * (nfiles + 2));
+        arglist[nfiles++] = m_strdup(nodename);
+      }
+
+      treewalk_close(tree);
+    }
+
+    if (!nfiles)
+      ohshit(_("searched, but found no packages (files matching *.deb)"));
+
+    arglist[nfiles] = NULL;
+    argp = (const char **volatile)arglist;
+  } else {
+    if (!*argv) badusage(_("--%s needs at least one package archive file argument"),
+                         cipaction->olong);
+    argp= argv;
+  }
+
+  /* Perform some sanity checks on the passed archives. */
+  for (i = 0; argp[i]; i++) {
+    struct stat st;
+
+    /* We need the filename to exist. */
+    if (stat(argp[i], &st) < 0)
+      ohshite(_("cannot access archive '%s'"), argp[i]);
+
+    /* We cannot work with anything that is not a regular file. */
+    if (!S_ISREG(st.st_mode))
+      ohshit(_("archive '%s' is not a regular file"), argp[i]);
+  }
+
+  currenttime = time(NULL);
+
+  /* Initialize fname variables contents. */
+
+  varbuf_reset(&fnamevb);
+  varbuf_reset(&fnametmpvb);
+  varbuf_reset(&fnamenewvb);
+
+  varbuf_add_str(&fnamevb, dpkg_fsys_get_dir());
+  varbuf_add_str(&fnametmpvb, dpkg_fsys_get_dir());
+  varbuf_add_str(&fnamenewvb, dpkg_fsys_get_dir());
+
+  varbuf_snapshot(&fnamevb, &fname_state);
+  varbuf_snapshot(&fnametmpvb, &fnametmp_state);
+  varbuf_snapshot(&fnamenewvb, &fnamenew_state);
+
+  ensure_diversions();
+  ensure_statoverrides(STATDB_PARSE_NORMAL);
+
+  for (i = 0; argp[i]; i++) {
+    if (setjmp(ejbuf)) {
+      pop_error_context(ehflag_bombout);
+      if (abort_processing)
+        break;
+      continue;
+    }
+    push_error_context_jump(&ejbuf, print_error_perarchive, argp[i]);
+
+    dpkg_selabel_load();
+
+    process_archive(argp[i]);
+    onerr_abort++;
+    m_output(stdout, _("<standard output>"));
+    m_output(stderr, _("<standard error>"));
+    onerr_abort--;
+
+    pop_error_context(ehflag_normaltidy);
+  }
+
+  dpkg_selabel_close();
+
+  if (arglist) {
+    for (i = 0; arglist[i]; i++)
+      free(arglist[i]);
+    free(arglist);
+  }
+
+  switch (cipaction->arg_int) {
+  case act_install:
+  case act_configure:
+  case act_triggers:
+  case act_remove:
+  case act_purge:
+    process_queue();
+  case act_unpack:
+  case act_avail:
+    break;
+  default:
+    internerr("unknown action '%d'", cipaction->arg_int);
+  }
+
+  trigproc_run_deferred();
+  modstatdb_shutdown();
+
+  return 0;
+}
+
+/**
+ * Decide whether we want to install a new version of the package.
+ *
+ * @param pkg The package with the version we might want to install
+ *
+ * @retval true  If the package should be skipped.
+ * @retval false If the package should be installed.
+ */
+bool
+wanttoinstall(struct pkginfo *pkg)
+{
+  int rc;
+
+  if (pkg->want != PKG_WANT_INSTALL && pkg->want != PKG_WANT_HOLD) {
+    if (f_alsoselect) {
+      printf(_("Selecting previously unselected package %s.\n"),
+             pkgbin_name(pkg, &pkg->available, pnaw_nonambig));
+      return true;
+    } else {
+      printf(_("Skipping unselected package %s.\n"),
+             pkgbin_name(pkg, &pkg->available, pnaw_nonambig));
+      return false;
+    }
+  }
+
+  if (pkg->eflag & PKG_EFLAG_REINSTREQ)
+    return true;
+  if (pkg->status < PKG_STAT_UNPACKED)
+    return true;
+
+  rc = dpkg_version_compare(&pkg->available.version, &pkg->installed.version);
+  if (rc > 0) {
+    return true;
+  } else if (rc == 0) {
+    /* Same version fully installed. */
+    if (f_skipsame && pkg->available.arch == pkg->installed.arch) {
+      notice(_("version %.250s of %.250s already installed, skipping"),
+             versiondescribe(&pkg->installed.version, vdew_nonambig),
+             pkg_name(pkg, pnaw_nonambig));
+      return false;
+    } else {
+      return true;
+    }
+  } else {
+    if (in_force(FORCE_DOWNGRADE)) {
+      warning(_("downgrading %.250s from %.250s to %.250s"),
+              pkg_name(pkg, pnaw_nonambig),
+              versiondescribe(&pkg->installed.version, vdew_nonambig),
+              versiondescribe(&pkg->available.version, vdew_nonambig));
+      return true;
+    } else {
+      notice(_("will not downgrade %.250s from %.250s to %.250s, skipping"),
+             pkg_name(pkg, pnaw_nonambig),
+             versiondescribe(&pkg->installed.version, vdew_nonambig),
+             versiondescribe(&pkg->available.version, vdew_nonambig));
+      return false;
+    }
+  }
+}
diff --git a/src/main/archives.h b/src/main/archives.h
new file mode 100644
index 0000000..3d97446
--- /dev/null
+++ b/src/main/archives.h
@@ -0,0 +1,99 @@
+/*
+ * dpkg - main program for package management
+ * archives.h - functions common to archives.c and unpack.c
+ *
+ * Copyright © 1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2008-2013, 2015 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef ARCHIVES_H
+#define ARCHIVES_H
+
+#include <stdbool.h>
+
+#include <dpkg/tarfn.h>
+
+struct tarcontext {
+  int backendpipe;
+  struct pkginfo *pkg;
+  /** A queue of fsys_namenode that have been extracted anew. */
+  struct fsys_namenode_queue *newfiles_queue;
+  /** Are all “Multi-arch: same” instances about to be in sync? */
+  bool pkgset_getting_in_sync;
+};
+
+struct pkg_deconf_list {
+  struct pkg_deconf_list *next;
+  struct pkginfo *pkg;
+  struct pkginfo *pkg_removal;
+  enum pkgwant reason;
+};
+
+extern struct varbuf_state fname_state;
+extern struct varbuf_state fnametmp_state;
+extern struct varbuf_state fnamenew_state;
+extern struct varbuf fnamevb;
+extern struct varbuf fnametmpvb;
+extern struct varbuf fnamenewvb;
+extern struct pkg_deconf_list *deconfigure;
+
+void clear_deconfigure_queue(void);
+void enqueue_deconfigure(struct pkginfo *pkg, struct pkginfo *pkg_removal,
+                         enum pkgwant reason);
+void enqueue_conflictor(struct pkginfo *pkg);
+
+void cu_pathname(int argc, void **argv);
+void cu_cidir(int argc, void **argv);
+void cu_fileslist(int argc, void **argv);
+void cu_backendpipe(int argc, void **argv);
+
+void cu_installnew(int argc, void **argv);
+
+void cu_prermupgrade(int argc, void **argv);
+void cu_prerminfavour(int argc, void **argv);
+void cu_preinstverynew(int argc, void **argv);
+void cu_preinstnew(int argc, void **argv);
+void cu_preinstupgrade(int argc, void **argv);
+void cu_postrmupgrade(int argc, void **argv);
+
+void cu_prermdeconfigure(int argc, void **argv);
+void ok_prermdeconfigure(int argc, void **argv);
+
+void setupfnamevbs(const char *filename);
+
+int
+tarobject(struct tar_archive *tar, struct tar_entry *ti);
+int
+tarfileread(struct tar_archive *tar, char *buf, int len);
+void
+tar_deferred_extract(struct fsys_namenode_list *files, struct pkginfo *pkg);
+
+struct fsys_namenode_list *
+tar_fsys_namenode_queue_push(struct fsys_namenode_queue *queue,
+                             struct fsys_namenode *namenode);
+
+bool
+filesavespackage(struct fsys_namenode_list *, struct pkginfo *,
+                 struct pkginfo *pkgbeinginstalled);
+
+void check_conflict(struct dependency *dep, struct pkginfo *pkg,
+                    const char *pfilename);
+void check_breaks(struct dependency *dep, struct pkginfo *pkg,
+                  const char *pfilename);
+
+extern int cleanup_pkg_failed, cleanup_conflictor_failed;
+
+#endif /* ARCHIVES_H */
diff --git a/src/main/cleanup.c b/src/main/cleanup.c
new file mode 100644
index 0000000..0f7d6ff
--- /dev/null
+++ b/src/main/cleanup.c
@@ -0,0 +1,260 @@
+/*
+ * dpkg - main program for package management
+ * cleanup.c - cleanup functions, used when we need to unwind
+ *
+ * Copyright © 1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2007-2015 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <errno.h>
+#include <string.h>
+#include <time.h>
+#include <utime.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/pkg.h>
+#include <dpkg/path.h>
+#include <dpkg/options.h>
+#include <dpkg/db-fsys.h>
+
+#include "main.h"
+#include "archives.h"
+
+int cleanup_pkg_failed=0, cleanup_conflictor_failed=0;
+
+/**
+ * Something went wrong and we're undoing.
+ *
+ * We have the following possible situations for non-conffiles:
+ *   «pathname».dpkg-tmp exists - in this case we want to remove
+ *    «pathname» if it exists and replace it with «pathname».dpkg-tmp.
+ *    This undoes the backup operation.
+ *   «pathname».dpkg-tmp does not exist - «pathname» may be on the disk,
+ *    as a new file which didn't fail, remove it if it is.
+ *
+ * In both cases, we also make sure we delete «pathname».dpkg-new in
+ * case that's still hanging around.
+ *
+ * For conffiles, we simply delete «pathname».dpkg-new. For these,
+ * «pathname».dpkg-tmp shouldn't exist, as we don't make a backup
+ * at this stage. Just to be on the safe side, though, we don't
+ * look for it.
+ */
+void cu_installnew(int argc, void **argv) {
+  struct fsys_namenode *namenode = argv[0];
+  struct stat stab;
+
+  cleanup_pkg_failed++; cleanup_conflictor_failed++;
+
+  debug(dbg_eachfile, "cu_installnew '%s' flags=%o",
+        namenode->name, namenode->flags);
+
+  setupfnamevbs(namenode->name);
+
+  if (!(namenode->flags & FNNF_NEW_CONFF) && !lstat(fnametmpvb.buf,&stab)) {
+    /* OK, «pathname».dpkg-tmp exists. Remove «pathname» and
+     * restore «pathname».dpkg-tmp ... */
+    if (namenode->flags & FNNF_NO_ATOMIC_OVERWRITE) {
+      /* If we can't do an atomic overwrite we have to delete first any
+       * link to the new version we may have created. */
+      debug(dbg_eachfiledetail,"cu_installnew restoring nonatomic");
+      if (secure_remove(fnamevb.buf) && errno != ENOENT && errno != ENOTDIR)
+        ohshite(_("unable to remove newly-installed version of '%.250s' to allow"
+                " reinstallation of backup copy"),namenode->name);
+    } else {
+      debug(dbg_eachfiledetail,"cu_installnew restoring atomic");
+    }
+    /* Either we can do an atomic restore, or we've made room: */
+    if (rename(fnametmpvb.buf,fnamevb.buf))
+      ohshite(_("unable to restore backup version of '%.250s'"), namenode->name);
+    /* If «pathname».dpkg-tmp was still a hard link to «pathname», then the
+     * atomic rename did nothing, so we make sure to remove the backup. */
+    else if (unlink(fnametmpvb.buf) && errno != ENOENT)
+      ohshite(_("unable to remove backup copy of '%.250s'"), namenode->name);
+  } else if (namenode->flags & FNNF_PLACED_ON_DISK) {
+    debug(dbg_eachfiledetail,"cu_installnew removing new file");
+    if (secure_remove(fnamevb.buf) && errno != ENOENT && errno != ENOTDIR)
+      ohshite(_("unable to remove newly-installed version of '%.250s'"),
+	      namenode->name);
+  } else {
+    debug(dbg_eachfiledetail,"cu_installnew not restoring");
+  }
+  /* Whatever, we delete «pathname».dpkg-new now, if it still exists. */
+  if (secure_remove(fnamenewvb.buf) && errno != ENOENT && errno != ENOTDIR)
+    ohshite(_("unable to remove newly-extracted version of '%.250s'"),
+            namenode->name);
+
+  cleanup_pkg_failed--; cleanup_conflictor_failed--;
+}
+
+void cu_prermupgrade(int argc, void **argv) {
+  struct pkginfo *pkg= (struct pkginfo*)argv[0];
+
+  if (cleanup_pkg_failed++) return;
+  maintscript_postinst(pkg, "abort-upgrade",
+                       versiondescribe(&pkg->available.version, vdew_nonambig),
+                       NULL);
+  pkg_clear_eflags(pkg, PKG_EFLAG_REINSTREQ);
+  post_postinst_tasks(pkg, PKG_STAT_INSTALLED);
+  cleanup_pkg_failed--;
+}
+
+/*
+ * Also has conflictor in argv[1] and infavour in argv[2].
+ * conflictor may be NULL if deconfigure was due to Breaks or multi-arch
+ * instance sync.
+ */
+void ok_prermdeconfigure(int argc, void **argv) {
+  struct pkginfo *deconf= (struct pkginfo*)argv[0];
+
+  if (cipaction->arg_int == act_install)
+    enqueue_package(deconf);
+}
+
+/*
+ * conflictor may be NULL if deconfigure was due to Breaks or multi-arch
+ * instance sync.
+ */
+void cu_prermdeconfigure(int argc, void **argv) {
+  struct pkginfo *deconf= (struct pkginfo*)argv[0];
+  struct pkginfo *conflictor = (struct pkginfo *)argv[1];
+  struct pkginfo *infavour= (struct pkginfo*)argv[2];
+
+  if (conflictor) {
+    maintscript_postinst(deconf, "abort-deconfigure",
+                         "in-favour",
+                         pkgbin_name(infavour, &infavour->available,
+                                     pnaw_nonambig),
+                         versiondescribe(&infavour->available.version,
+                                         vdew_nonambig),
+                         "removing",
+                         pkg_name(conflictor, pnaw_nonambig),
+                         versiondescribe(&conflictor->installed.version,
+                                         vdew_nonambig),
+                         NULL);
+  } else {
+    maintscript_postinst(deconf, "abort-deconfigure",
+                         "in-favour",
+                         pkgbin_name(infavour, &infavour->available,
+                                     pnaw_nonambig),
+                         versiondescribe(&infavour->available.version,
+                                         vdew_nonambig),
+                         NULL);
+  }
+
+  post_postinst_tasks(deconf, PKG_STAT_INSTALLED);
+}
+
+void cu_prerminfavour(int argc, void **argv) {
+  struct pkginfo *conflictor= (struct pkginfo*)argv[0];
+  struct pkginfo *infavour= (struct pkginfo*)argv[1];
+
+  if (cleanup_conflictor_failed++) return;
+  maintscript_postinst(conflictor, "abort-remove",
+                       "in-favour",
+                       pkgbin_name(infavour, &infavour->available,
+                                   pnaw_nonambig),
+                       versiondescribe(&infavour->available.version,
+                                       vdew_nonambig),
+                       NULL);
+  pkg_clear_eflags(conflictor, PKG_EFLAG_REINSTREQ);
+  post_postinst_tasks(conflictor, PKG_STAT_INSTALLED);
+  cleanup_conflictor_failed--;
+}
+
+void cu_preinstverynew(int argc, void **argv) {
+  struct pkginfo *pkg= (struct pkginfo*)argv[0];
+  char *cidir= (char*)argv[1];
+  char *cidirrest= (char*)argv[2];
+
+  if (cleanup_pkg_failed++) return;
+  maintscript_new(pkg, POSTRMFILE, "post-removal", cidir, cidirrest,
+                  "abort-install", NULL);
+  pkg_set_status(pkg, PKG_STAT_NOTINSTALLED);
+  pkg_clear_eflags(pkg, PKG_EFLAG_REINSTREQ);
+  pkgbin_blank(&pkg->installed);
+  modstatdb_note(pkg);
+  cleanup_pkg_failed--;
+}
+
+void cu_preinstnew(int argc, void **argv) {
+  struct pkginfo *pkg= (struct pkginfo*)argv[0];
+  char *cidir= (char*)argv[1];
+  char *cidirrest= (char*)argv[2];
+
+  if (cleanup_pkg_failed++) return;
+  maintscript_new(pkg, POSTRMFILE, "post-removal", cidir, cidirrest,
+                  "abort-install",
+                  versiondescribe(&pkg->installed.version, vdew_nonambig),
+                  versiondescribe(&pkg->available.version, vdew_nonambig),
+                  NULL);
+  pkg_set_status(pkg, PKG_STAT_CONFIGFILES);
+  pkg_clear_eflags(pkg, PKG_EFLAG_REINSTREQ);
+  modstatdb_note(pkg);
+  cleanup_pkg_failed--;
+}
+
+void cu_preinstupgrade(int argc, void **argv) {
+  struct pkginfo *pkg= (struct pkginfo*)argv[0];
+  char *cidir= (char*)argv[1];
+  char *cidirrest= (char*)argv[2];
+  enum pkgstatus *oldstatusp= (enum pkgstatus*)argv[3];
+
+  if (cleanup_pkg_failed++) return;
+  maintscript_new(pkg, POSTRMFILE, "post-removal", cidir, cidirrest,
+                  "abort-upgrade",
+                  versiondescribe(&pkg->installed.version, vdew_nonambig),
+                  versiondescribe(&pkg->available.version, vdew_nonambig),
+                  NULL);
+  pkg_set_status(pkg, *oldstatusp);
+  pkg_clear_eflags(pkg, PKG_EFLAG_REINSTREQ);
+  modstatdb_note(pkg);
+  cleanup_pkg_failed--;
+}
+
+void cu_postrmupgrade(int argc, void **argv) {
+  struct pkginfo *pkg= (struct pkginfo*)argv[0];
+
+  if (cleanup_pkg_failed++) return;
+  maintscript_installed(pkg, PREINSTFILE, "pre-installation",
+                        "abort-upgrade",
+                        versiondescribe(&pkg->available.version, vdew_nonambig),
+                        NULL);
+  cleanup_pkg_failed--;
+}
+
+void cu_prermremove(int argc, void **argv) {
+  struct pkginfo *pkg= (struct pkginfo*)argv[0];
+  const enum pkgstatus *oldpkgstatus = (enum pkgstatus *)argv[1];
+
+  if (cleanup_pkg_failed++) return;
+  maintscript_postinst(pkg, "abort-remove", NULL);
+  pkg_clear_eflags(pkg, PKG_EFLAG_REINSTREQ);
+  post_postinst_tasks(pkg, *oldpkgstatus);
+  cleanup_pkg_failed--;
+}
diff --git a/src/main/configure.c b/src/main/configure.c
new file mode 100644
index 0000000..c2d58c7
--- /dev/null
+++ b/src/main/configure.c
@@ -0,0 +1,825 @@
+/*
+ * dpkg - main program for package management
+ * configure.c - configure packages
+ *
+ * Copyright © 1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 1999, 2002 Wichert Akkerman <wichert@deephackmode.org>
+ * Copyright © 2007-2015 Guillem Jover <guillem@debian.org>
+ * Copyright © 2011 Linaro Limited
+ * Copyright © 2011 Raphaël Hertzog <hertzog@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+
+#include <errno.h>
+#include <ctype.h>
+#include <string.h>
+#include <time.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <termios.h>
+#include <unistd.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <dpkg/macros.h>
+#include <dpkg/i18n.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/pkg.h>
+#include <dpkg/string.h>
+#include <dpkg/buffer.h>
+#include <dpkg/file.h>
+#include <dpkg/path.h>
+#include <dpkg/subproc.h>
+#include <dpkg/command.h>
+#include <dpkg/pager.h>
+#include <dpkg/triglib.h>
+#include <dpkg/db-fsys.h>
+
+#include "main.h"
+
+enum DPKG_ATTR_ENUM_FLAGS conffopt {
+	CFOF_PROMPT		= DPKG_BIT(0),
+	CFOF_KEEP		= DPKG_BIT(1),
+	CFOF_INSTALL		= DPKG_BIT(2),
+	CFOF_BACKUP		= DPKG_BIT(3),
+	CFOF_NEW_CONFF		= DPKG_BIT(4),
+	CFOF_IS_NEW		= DPKG_BIT(5),
+	CFOF_IS_OLD		= DPKG_BIT(6),
+	CFOF_USER_DEL		= DPKG_BIT(7),
+
+	CFO_KEEP		= CFOF_KEEP,
+	CFO_IDENTICAL		= CFOF_KEEP,
+	CFO_INSTALL		= CFOF_INSTALL,
+	CFO_NEW_CONFF		= CFOF_NEW_CONFF | CFOF_INSTALL,
+	CFO_PROMPT		= CFOF_PROMPT,
+	CFO_PROMPT_KEEP		= CFOF_PROMPT | CFOF_KEEP,
+	CFO_PROMPT_INSTALL	= CFOF_PROMPT | CFOF_INSTALL,
+};
+
+static int conffoptcells[2][2] = {
+	/* Distro !edited. */	/* Distro edited. */
+	{ CFO_KEEP,		CFO_INSTALL },		/* User !edited. */
+	{ CFO_KEEP,		CFO_PROMPT_KEEP },	/* User edited. */
+};
+
+static int
+show_prompt(const char *cfgfile, const char *realold, const char *realnew,
+            int useredited, int distedited, enum conffopt what)
+{
+	const char *s;
+	int c, cc;
+
+	/* Flush the terminal's input in case the user involuntarily
+	 * typed some characters. */
+	tcflush(STDIN_FILENO, TCIFLUSH);
+
+	fputs("\n", stderr);
+	if (strcmp(cfgfile, realold) == 0)
+		fprintf(stderr, _("Configuration file '%s'\n"), cfgfile);
+	else
+		fprintf(stderr, _("Configuration file '%s' (actually '%s')\n"),
+		        cfgfile, realold);
+
+	if (what & CFOF_IS_NEW) {
+		fprintf(stderr,
+		        _(" ==> File on system created by you or by a script.\n"
+		          " ==> File also in package provided by package maintainer.\n"));
+	} else {
+		fprintf(stderr, !useredited ?
+		        _("     Not modified since installation.\n") :
+		        !(what & CFOF_USER_DEL) ?
+		        _(" ==> Modified (by you or by a script) since installation.\n") :
+		        _(" ==> Deleted (by you or by a script) since installation.\n"));
+
+		fprintf(stderr, distedited ?
+		        _(" ==> Package distributor has shipped an updated version.\n") :
+		        _("     Version in package is the same as at last installation.\n"));
+	}
+
+	/* No --force-confdef but a forcible situation. */
+	/* TODO: check if this condition can not be simplified to
+	 *       just !in_force(FORCE_CONFF_DEF) */
+	if (!(in_force(FORCE_CONFF_DEF) && (what & (CFOF_INSTALL | CFOF_KEEP)))) {
+		if (in_force(FORCE_CONFF_NEW)) {
+			fprintf(stderr,
+			        _(" ==> Using new file as you requested.\n"));
+			return 'y';
+		} else if (in_force(FORCE_CONFF_OLD)) {
+			fprintf(stderr,
+			        _(" ==> Using current old file as you requested.\n"));
+			return 'n';
+		}
+	}
+
+	/* Force the default action (if there is one. */
+	if (in_force(FORCE_CONFF_DEF)) {
+		if (what & CFOF_KEEP) {
+			fprintf(stderr,
+			        _(" ==> Keeping old config file as default.\n"));
+			return 'n';
+		} else if (what & CFOF_INSTALL) {
+			fprintf(stderr,
+			        _(" ==> Using new config file as default.\n"));
+			return 'y';
+		}
+	}
+
+	fprintf(stderr,
+	        _("   What would you like to do about it ?  Your options are:\n"
+	          "    Y or I  : install the package maintainer's version\n"
+	          "    N or O  : keep your currently-installed version\n"
+	          "      D     : show the differences between the versions\n"
+	          "      Z     : start a shell to examine the situation\n"));
+
+	if (what & CFOF_KEEP)
+		fprintf(stderr,
+		        _(" The default action is to keep your current version.\n"));
+	else if (what & CFOF_INSTALL)
+		fprintf(stderr,
+		        _(" The default action is to install the new version.\n"));
+
+	s = path_basename(cfgfile);
+	fprintf(stderr, "*** %s (Y/I/N/O/D/Z) %s ? ", s,
+	        (what & CFOF_KEEP) ? _("[default=N]") :
+	        (what & CFOF_INSTALL) ? _("[default=Y]") :
+	        _("[no default]"));
+
+	if (ferror(stderr))
+		ohshite(_("error writing to stderr, discovered before conffile prompt"));
+
+	cc = 0;
+	while ((c = getchar()) != EOF && c != '\n')
+		if (!isspace(c) && !cc)
+			cc = tolower(c);
+
+	if (c == EOF) {
+		if (ferror(stdin))
+			ohshite(_("read error on stdin at conffile prompt"));
+		ohshit(_("end of file on stdin at conffile prompt"));
+	}
+
+	if (!cc) {
+		if (what & CFOF_KEEP)
+			return 'n';
+		else if (what & CFOF_INSTALL)
+			return 'y';
+	}
+
+	return cc;
+}
+
+/**
+ * Show a diff between two files.
+ *
+ * @param old The path to the old file.
+ * @param new The path to the new file.
+ */
+static void
+show_diff(const char *old, const char *new)
+{
+	struct pager *pager;
+	pid_t pid;
+
+	pager = pager_spawn(_("conffile difference visualizer"));
+
+	pid = subproc_fork();
+	if (!pid) {
+		/* Child process. */
+		struct command cmd;
+
+		command_init(&cmd, DIFF, _("conffile difference visualizer"));
+		command_add_arg(&cmd, DIFF);
+		command_add_arg(&cmd, "-Nu");
+		command_add_arg(&cmd, old);
+		command_add_arg(&cmd, new);
+		command_exec(&cmd);
+	}
+
+	/* Parent process. */
+	subproc_reap(pid, _("conffile difference visualizer"), SUBPROC_NOCHECK);
+	pager_reap(pager);
+}
+
+/**
+ * Spawn a new shell.
+ *
+ * Create a subprocess and execute a shell to allow the user to manually
+ * solve the conffile conflict.
+ *
+ * @param confold The path to the old conffile.
+ * @param confnew The path to the new conffile.
+ */
+static void
+spawn_shell(const char *confold, const char *confnew)
+{
+	pid_t pid;
+
+	fputs(_("Useful environment variables:\n"), stderr);
+	fputs(" - DPKG_SHELL_REASON\n", stderr);
+	fputs(" - DPKG_CONFFILE_OLD\n", stderr);
+	fputs(" - DPKG_CONFFILE_NEW\n", stderr);
+	fputs(_("Type 'exit' when you're done.\n"), stderr);
+
+	pid = subproc_fork();
+	if (!pid) {
+		/* Set useful variables for the user. */
+		setenv("DPKG_SHELL_REASON", "conffile-prompt", 1);
+		setenv("DPKG_CONFFILE_OLD", confold, 1);
+		setenv("DPKG_CONFFILE_NEW", confnew, 1);
+
+		command_shell(NULL, _("conffile shell"));
+	}
+
+	/* Parent process. */
+	subproc_reap(pid, _("conffile shell"), SUBPROC_NOCHECK);
+}
+
+/**
+ * Prompt the user for how to resolve a conffile conflict.
+ *
+ * When encountering a conffile conflict during configuration, the user will
+ * normally be presented with a textual menu of possible actions. This
+ * behavior is modified via various --force flags and perhaps on whether
+ * or not a terminal is available to do the prompting.
+ *
+ * @param pkg The package owning the conffile.
+ * @param cfgfile The path to the old conffile.
+ * @param realold The path to the old conffile, dereferenced in case of a
+ *        symlink, otherwise equal to cfgfile.
+ * @param realnew The path to the new conffile, dereferenced in case of a
+ *        symlink).
+ * @param useredited A flag to indicate whether the file has been edited
+ *        locally. Set to nonzero to indicate that the file has been modified.
+ * @param distedited A flag to indicate whether the file has been updated
+ *        between package versions. Set to nonzero to indicate that the file
+ *        has been updated.
+ * @param what Hints on what action should be taken by default.
+ *
+ * @return The action which should be taken based on user input and/or the
+ *         default actions as configured by cmdline/configuration options.
+ */
+static enum conffopt
+promptconfaction(struct pkginfo *pkg, const char *cfgfile,
+                 const char *realold, const char *realnew,
+                 int useredited, int distedited, enum conffopt what)
+{
+	int cc;
+
+	if (!(what & CFOF_PROMPT))
+		return what;
+
+	statusfd_send("status: %s : %s : '%s' '%s' %i %i ",
+	              cfgfile, "conffile-prompt",
+	              realold, realnew, useredited, distedited);
+
+	do {
+		cc = show_prompt(cfgfile, realold, realnew,
+		                 useredited, distedited, what);
+
+		/* FIXME: Say something if silently not install. */
+		if (cc == 'd')
+			show_diff(realold, realnew);
+
+		if (cc == 'z')
+			spawn_shell(realold, realnew);
+	} while (!strchr("yino", cc));
+
+	log_message("conffile %s %s", cfgfile,
+	            (cc == 'i' || cc == 'y') ? "install" : "keep");
+
+	what &= CFOF_USER_DEL;
+
+	switch (cc) {
+	case 'i':
+	case 'y':
+		what |= CFOF_INSTALL | CFOF_BACKUP;
+		break;
+
+	case 'n':
+	case 'o':
+		what |= CFOF_KEEP | CFOF_BACKUP;
+		break;
+
+	default:
+		internerr("unknown response '%d'", cc);
+	}
+
+	return what;
+}
+
+/**
+ * Configure the ghost conffile instance.
+ *
+ * When the first instance of a package set is configured, the *.dpkg-new
+ * files gets installed into their destination, which makes configuration of
+ * conffiles from subsequent package instances be skipped along with updates
+ * to the Conffiles field hash.
+ *
+ * In case the conffile has already been processed, sync the hash from an
+ * already configured package instance conffile.
+ *
+ * @param pkg	The current package being configured.
+ * @param conff	The current conffile being configured.
+ */
+static void
+deferred_configure_ghost_conffile(struct pkginfo *pkg, struct conffile *conff)
+{
+	struct pkginfo *otherpkg;
+	struct conffile *otherconff;
+
+	for (otherpkg = &pkg->set->pkg; otherpkg; otherpkg = otherpkg->arch_next) {
+		if (otherpkg == pkg)
+			continue;
+		if (otherpkg->status <= PKG_STAT_HALFCONFIGURED)
+			continue;
+
+		for (otherconff = otherpkg->installed.conffiles; otherconff;
+		     otherconff = otherconff->next) {
+			if (otherconff->obsolete || otherconff->remove_on_upgrade)
+				continue;
+
+			/* Check if we need to propagate the new hash from
+			 * an already processed conffile in another package
+			 * instance. */
+			if (strcmp(otherconff->name, conff->name) == 0) {
+				conff->hash = otherconff->hash;
+				modstatdb_note(pkg);
+				return;
+			}
+		}
+	}
+}
+
+static void
+deferred_configure_conffile(struct pkginfo *pkg, struct conffile *conff)
+{
+	struct fsys_namenode *usenode;
+	char currenthash[MD5HASHLEN + 1], newdisthash[MD5HASHLEN + 1];
+	int useredited, distedited;
+	enum conffopt what;
+	struct stat stab;
+	struct varbuf cdr = VARBUF_INIT, cdr2 = VARBUF_INIT;
+	char *cdr2rest;
+	int rc;
+
+	usenode = namenodetouse(fsys_hash_find_node(conff->name, FHFF_NO_COPY),
+                                pkg, &pkg->installed);
+
+	rc = conffderef(pkg, &cdr, usenode->name);
+	if (rc == -1) {
+		conff->hash = EMPTYHASHFLAG;
+		return;
+	}
+	md5hash(pkg, currenthash, cdr.buf);
+
+	varbuf_set_varbuf(&cdr2, &cdr);
+	/* XXX: Make sure there's enough room for extensions. */
+	varbuf_grow(&cdr2, 50);
+	cdr2rest = cdr2.buf + strlen(cdr.buf);
+	/* From now on we can just strcpy(cdr2rest, extension); */
+
+	strcpy(cdr2rest, DPKGNEWEXT);
+	/* If the .dpkg-new file is no longer there, ignore this one. */
+	if (lstat(cdr2.buf, &stab)) {
+		if (errno == ENOENT) {
+			/* But, sync the conffile hash value from another
+			 * package set instance. */
+			deferred_configure_ghost_conffile(pkg, conff);
+			return;
+		}
+		ohshite(_("unable to stat new distributed conffile '%.250s'"),
+		        cdr2.buf);
+	}
+	md5hash(pkg, newdisthash, cdr2.buf);
+
+	/* Copy the permissions from the installed version to the new
+	 * distributed version. */
+	if (!stat(cdr.buf, &stab))
+		file_copy_perms(cdr.buf, cdr2.buf);
+	else if (errno != ENOENT)
+		ohshite(_("unable to stat current installed conffile '%.250s'"),
+		        cdr.buf);
+
+	/* Select what to do. */
+	if (strcmp(currenthash, newdisthash) == 0) {
+		/* They're both the same so there's no point asking silly
+		 * questions. */
+		useredited = -1;
+		distedited = -1;
+		what = CFO_IDENTICAL;
+	} else if (strcmp(currenthash, NONEXISTENTFLAG) == 0 && in_force(FORCE_CONFF_MISS)) {
+		fprintf(stderr,
+		        _("\n"
+		          "Configuration file '%s', does not exist on system.\n"
+		          "Installing new config file as you requested.\n"),
+		        usenode->name);
+		what = CFO_NEW_CONFF;
+		useredited = -1;
+		distedited = -1;
+	} else if (strcmp(conff->hash, NEWCONFFILEFLAG) == 0) {
+		if (strcmp(currenthash, NONEXISTENTFLAG) == 0) {
+			what = CFO_NEW_CONFF;
+			useredited = -1;
+			distedited = -1;
+		} else {
+			useredited = 1;
+			distedited = 1;
+			what = conffoptcells[useredited][distedited] |
+			       CFOF_IS_NEW;
+		}
+	} else {
+		useredited = strcmp(conff->hash, currenthash) != 0;
+		distedited = strcmp(conff->hash, newdisthash) != 0;
+
+		if (in_force(FORCE_CONFF_ASK) && useredited)
+			what = CFO_PROMPT_KEEP;
+		else
+			what = conffoptcells[useredited][distedited];
+
+		if (strcmp(currenthash, NONEXISTENTFLAG) == 0)
+			what |= CFOF_USER_DEL;
+	}
+
+	debug(dbg_conff,
+	      "deferred_configure '%s' (= '%s') useredited=%d distedited=%d what=%o",
+	      usenode->name, cdr.buf, useredited, distedited, what);
+
+	what = promptconfaction(pkg, usenode->name, cdr.buf, cdr2.buf,
+	                        useredited, distedited, what);
+
+	switch (what & ~(CFOF_IS_NEW | CFOF_USER_DEL)) {
+	case CFO_KEEP | CFOF_BACKUP:
+		strcpy(cdr2rest, DPKGOLDEXT);
+		if (unlink(cdr2.buf) && errno != ENOENT)
+			warning(_("%s: failed to remove old backup '%.250s': %s"),
+			        pkg_name(pkg, pnaw_nonambig), cdr2.buf,
+			        strerror(errno));
+
+		varbuf_add_str(&cdr, DPKGDISTEXT);
+		varbuf_end_str(&cdr);
+		strcpy(cdr2rest, DPKGNEWEXT);
+		trig_path_activate(usenode, pkg);
+		if (rename(cdr2.buf, cdr.buf))
+			warning(_("%s: failed to rename '%.250s' to '%.250s': %s"),
+			        pkg_name(pkg, pnaw_nonambig), cdr2.buf, cdr.buf,
+			        strerror(errno));
+		break;
+	case CFO_KEEP:
+		strcpy(cdr2rest, DPKGNEWEXT);
+		if (unlink(cdr2.buf))
+			warning(_("%s: failed to remove '%.250s': %s"),
+			        pkg_name(pkg, pnaw_nonambig), cdr2.buf,
+			        strerror(errno));
+		break;
+	case CFO_INSTALL | CFOF_BACKUP:
+		strcpy(cdr2rest, DPKGDISTEXT);
+		if (unlink(cdr2.buf) && errno != ENOENT)
+			warning(_("%s: failed to remove old distributed version '%.250s': %s"),
+			        pkg_name(pkg, pnaw_nonambig), cdr2.buf,
+			        strerror(errno));
+		strcpy(cdr2rest, DPKGOLDEXT);
+		if (unlink(cdr2.buf) && errno != ENOENT)
+			warning(_("%s: failed to remove '%.250s' (before overwrite): %s"),
+			        pkg_name(pkg, pnaw_nonambig), cdr2.buf,
+			        strerror(errno));
+		if (!(what & CFOF_USER_DEL))
+			if (link(cdr.buf, cdr2.buf))
+				warning(_("%s: failed to link '%.250s' to '%.250s': %s"),
+				        pkg_name(pkg, pnaw_nonambig), cdr.buf,
+				        cdr2.buf, strerror(errno));
+		/* Fall through. */
+	case CFO_INSTALL:
+		printf(_("Installing new version of config file %s ...\n"),
+		       usenode->name);
+		/* Fall through. */
+	case CFO_NEW_CONFF:
+		strcpy(cdr2rest, DPKGNEWEXT);
+		trig_path_activate(usenode, pkg);
+		if (rename(cdr2.buf, cdr.buf))
+			ohshite(_("unable to install '%.250s' as '%.250s'"),
+			        cdr2.buf, cdr.buf);
+		break;
+	default:
+		internerr("unknown conffopt '%d'", what);
+	}
+
+	conff->hash = nfstrsave(newdisthash);
+	modstatdb_note(pkg);
+
+	varbuf_destroy(&cdr);
+	varbuf_destroy(&cdr2);
+}
+
+/**
+ * Process the deferred configure package.
+ *
+ * @param pkg The package to act on.
+ */
+void
+deferred_configure(struct pkginfo *pkg)
+{
+	struct varbuf aemsgs = VARBUF_INIT;
+	struct conffile *conff;
+	struct pkginfo *otherpkg;
+	enum dep_check ok;
+
+	if (pkg->status == PKG_STAT_NOTINSTALLED)
+		ohshit(_("no package named '%s' is installed, cannot configure"),
+		       pkg_name(pkg, pnaw_nonambig));
+	if (pkg->status == PKG_STAT_INSTALLED)
+		ohshit(_("package %.250s is already installed and configured"),
+		       pkg_name(pkg, pnaw_nonambig));
+	if (pkg->status != PKG_STAT_UNPACKED &&
+	    pkg->status != PKG_STAT_HALFCONFIGURED)
+		ohshit(_("package %.250s is not ready for configuration\n"
+		         " cannot configure (current status '%.250s')"),
+		       pkg_name(pkg, pnaw_nonambig),
+		       pkg_status_name(pkg));
+
+	for (otherpkg = &pkg->set->pkg; otherpkg; otherpkg = otherpkg->arch_next) {
+		if (otherpkg == pkg)
+			continue;
+		if (otherpkg->status <= PKG_STAT_CONFIGFILES)
+			continue;
+
+		if (otherpkg->status < PKG_STAT_UNPACKED)
+			ohshit(_("package %s cannot be configured because "
+			         "%s is not ready (current status '%s')"),
+			       pkg_name(pkg, pnaw_always),
+			       pkg_name(otherpkg, pnaw_always),
+			       pkg_status_name(otherpkg));
+
+		if (dpkg_version_compare(&pkg->installed.version,
+		                         &otherpkg->installed.version))
+			ohshit(_("package %s %s cannot be configured because "
+			         "%s is at a different version (%s)"),
+			       pkg_name(pkg, pnaw_always),
+			       versiondescribe(&pkg->installed.version,
+			                       vdew_nonambig),
+			       pkg_name(otherpkg, pnaw_always),
+			       versiondescribe(&otherpkg->installed.version,
+			                       vdew_nonambig));
+	}
+
+	if (dependtry >= DEPEND_TRY_CYCLES)
+		if (findbreakcycle(pkg))
+			sincenothing = 0;
+
+	ok = dependencies_ok(pkg, NULL, &aemsgs);
+	if (ok == DEP_CHECK_DEFER) {
+		varbuf_destroy(&aemsgs);
+		ensure_package_clientdata(pkg);
+		pkg->clientdata->istobe = PKG_ISTOBE_INSTALLNEW;
+		enqueue_package(pkg);
+		return;
+	}
+
+	trigproc_reset_cycle();
+
+	/*
+	 * At this point removal from the queue is confirmed. This
+	 * represents irreversible progress wrt trigger cycles. Only
+	 * packages in PKG_STAT_UNPACKED are automatically added to the
+	 * configuration queue, and during configuration and trigger
+	 * processing new packages can't enter into unpacked.
+	 */
+
+	ok = breakses_ok(pkg, &aemsgs) ? ok : DEP_CHECK_HALT;
+	if (ok == DEP_CHECK_HALT) {
+		sincenothing = 0;
+		varbuf_end_str(&aemsgs);
+		notice(_("dependency problems prevent configuration of %s:\n%s"),
+		       pkg_name(pkg, pnaw_nonambig), aemsgs.buf);
+		varbuf_destroy(&aemsgs);
+		ohshit(_("dependency problems - leaving unconfigured"));
+	} else if (aemsgs.used) {
+		varbuf_end_str(&aemsgs);
+		notice(_("%s: dependency problems, but configuring anyway as you requested:\n%s"),
+		       pkg_name(pkg, pnaw_nonambig), aemsgs.buf);
+	}
+	varbuf_destroy(&aemsgs);
+	sincenothing = 0;
+
+	if (pkg->eflag & PKG_EFLAG_REINSTREQ)
+		forcibleerr(FORCE_REMOVE_REINSTREQ,
+		            _("package is in a very bad inconsistent state; you should\n"
+		              " reinstall it before attempting configuration"));
+
+	printf(_("Setting up %s (%s) ...\n"), pkg_name(pkg, pnaw_nonambig),
+	       versiondescribe(&pkg->installed.version, vdew_nonambig));
+	log_action("configure", pkg, &pkg->installed);
+
+	trig_activate_packageprocessing(pkg);
+
+	if (f_noact) {
+		pkg_set_status(pkg, PKG_STAT_INSTALLED);
+		ensure_package_clientdata(pkg);
+		pkg->clientdata->istobe = PKG_ISTOBE_NORMAL;
+		return;
+	}
+
+	if (pkg->status == PKG_STAT_UNPACKED) {
+		debug(dbg_general, "deferred_configure updating conffiles");
+		/* This will not do at all the right thing with overridden
+		 * conffiles or conffiles that are the ‘target’ of an override;
+		 * all the references here would be to the ‘contested’
+		 * filename, and in any case there'd only be one hash for both
+		 * ‘versions’ of the conffile.
+		 *
+		 * Overriding conffiles is a silly thing to do anyway :-). */
+
+		modstatdb_note(pkg);
+
+		/* On entry, the ‘new’ version of each conffile has been
+		 * unpacked as ‘*.dpkg-new’, and the ‘installed’ version is
+		 * as-yet untouched in ‘*’. The hash of the ‘old distributed’
+		 * version is in the conffiles data for the package. If
+		 * ‘*.dpkg-new’ no longer exists we assume that we've
+		 * already processed this one. */
+		for (conff = pkg->installed.conffiles; conff; conff = conff->next) {
+			if (conff->obsolete || conff->remove_on_upgrade)
+				continue;
+			deferred_configure_conffile(pkg, conff);
+		}
+
+		pkg_set_status(pkg, PKG_STAT_HALFCONFIGURED);
+	}
+
+	if (pkg->status != PKG_STAT_HALFCONFIGURED)
+		internerr("package %s in state %s, instead of half-configured",
+		          pkg_name(pkg, pnaw_always), pkg_status_name(pkg));
+
+	modstatdb_note(pkg);
+
+	maintscript_postinst(pkg, "configure",
+	                     dpkg_version_is_informative(&pkg->configversion) ?
+	                     versiondescribe(&pkg->configversion,
+	                                     vdew_nonambig) : "",
+	                     NULL);
+
+	pkg_reset_eflags(pkg);
+	pkg->trigpend_head = NULL;
+	post_postinst_tasks(pkg, PKG_STAT_INSTALLED);
+}
+
+/**
+ * Dereference a file by following all possibly used symlinks.
+ *
+ * @param[in] pkg The package to act on.
+ * @param[out] result The dereference conffile path.
+ * @param[in] in The conffile path to dereference.
+ *
+ * @return An error code for the operation.
+ * @retval 0 Everything went ok.
+ * @retval -1 Otherwise.
+ */
+int
+conffderef(struct pkginfo *pkg, struct varbuf *result, const char *in)
+{
+	static struct varbuf target = VARBUF_INIT;
+	struct stat stab;
+	ssize_t r;
+	int loopprotect;
+
+	varbuf_set_str(result, dpkg_fsys_get_dir());
+	varbuf_add_str(result, in);
+	varbuf_end_str(result);
+
+	loopprotect = 0;
+
+	for (;;) {
+		debug(dbg_conffdetail, "conffderef in='%s' current working='%s'",
+		      in, result->buf);
+		if (lstat(result->buf, &stab)) {
+			if (errno != ENOENT)
+				warning(_("%s: unable to stat config file '%s'\n"
+				          " (= '%s'): %s"),
+				        pkg_name(pkg, pnaw_nonambig), in,
+				        result->buf, strerror(errno));
+			debug(dbg_conffdetail, "conffderef nonexistent");
+			return 0;
+		} else if (S_ISREG(stab.st_mode)) {
+			debug(dbg_conff, "conffderef in='%s' result='%s'",
+			      in, result->buf);
+			return 0;
+		} else if (S_ISLNK(stab.st_mode)) {
+			debug(dbg_conffdetail, "conffderef symlink loopprotect=%d",
+			      loopprotect);
+			if (loopprotect++ >= 25) {
+				warning(_("%s: config file '%s' is a circular link\n"
+				          " (= '%s')"),
+				        pkg_name(pkg, pnaw_nonambig), in,
+				        result->buf);
+				return -1;
+			}
+
+			varbuf_reset(&target);
+			varbuf_grow(&target, stab.st_size + 1);
+			r = readlink(result->buf, target.buf, target.size);
+			if (r < 0) {
+				warning(_("%s: unable to readlink conffile '%s'\n"
+				          " (= '%s'): %s"),
+				        pkg_name(pkg, pnaw_nonambig), in,
+				        result->buf, strerror(errno));
+				return -1;
+			} else if (r != stab.st_size) {
+				warning(_("symbolic link '%.250s' size has "
+				          "changed from %jd to %zd"),
+				        result->buf, (intmax_t)stab.st_size, r);
+				/* If the returned size is smaller, let's
+				 * proceed, otherwise error out. */
+				if (r > stab.st_size)
+					return -1;
+			}
+			varbuf_trunc(&target, r);
+			varbuf_end_str(&target);
+
+			debug(dbg_conffdetail,
+			      "conffderef readlink gave %zd, '%s'",
+			      r, target.buf);
+
+			if (target.buf[0] == '/') {
+				varbuf_set_str(result, dpkg_fsys_get_dir());
+				debug(dbg_conffdetail,
+				      "conffderef readlink absolute");
+			} else {
+				for (r = result->used - 1; r > 0 && result->buf[r] != '/'; r--)
+					;
+				if (r < 0) {
+					warning(_("%s: conffile '%.250s' resolves to degenerate filename\n"
+					          " ('%s' is a symlink to '%s')"),
+					        pkg_name(pkg, pnaw_nonambig),
+					        in, result->buf, target.buf);
+					return -1;
+				}
+				if (result->buf[r] == '/')
+					r++;
+				varbuf_trunc(result, r);
+				debug(dbg_conffdetail,
+				      "conffderef readlink relative to '%.*s'",
+				      (int)result->used, result->buf);
+			}
+			varbuf_add_varbuf(result, &target);
+			varbuf_end_str(result);
+		} else {
+			warning(_("%s: conffile '%.250s' is not a plain file or symlink (= '%s')"),
+			        pkg_name(pkg, pnaw_nonambig), in, result->buf);
+			return -1;
+		}
+	}
+}
+
+/**
+ * Generate a file contents MD5 hash.
+ *
+ * The caller is responsible for providing a buffer for the hash result
+ * at least MD5HASHLEN + 1 characters long.
+ *
+ * @param[in] pkg The package to act on.
+ * @param[out] hashbuf The buffer to store the generated hash.
+ * @param[in] fn The filename.
+ */
+void
+md5hash(struct pkginfo *pkg, char *hashbuf, const char *fn)
+{
+	struct dpkg_error err;
+	static int fd;
+
+	fd = open(fn, O_RDONLY);
+
+	if (fd >= 0) {
+		push_cleanup(cu_closefd, ehflag_bombout, 1, &fd);
+		if (fd_md5(fd, hashbuf, -1, &err) < 0)
+			ohshit(_("cannot compute MD5 digest for file '%s': %s"),
+			       fn, err.str);
+		pop_cleanup(ehflag_normaltidy); /* fd = open(cdr.buf) */
+		close(fd);
+	} else if (errno == ENOENT) {
+		strcpy(hashbuf, NONEXISTENTFLAG);
+	} else {
+		warning(_("%s: unable to open %s to compute its digest: %s"),
+		        pkg_name(pkg, pnaw_nonambig), fn, strerror(errno));
+		strcpy(hashbuf, EMPTYHASHFLAG);
+	}
+}
diff --git a/src/main/depcon.c b/src/main/depcon.c
new file mode 100644
index 0000000..e8efdd3
--- /dev/null
+++ b/src/main/depcon.c
@@ -0,0 +1,705 @@
+/*
+ * dpkg - main program for package management
+ * depcon.c - dependency and conflict checking
+ *
+ * Copyright © 1994,1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2006-2014 Guillem Jover <guillem@debian.org>
+ * Copyright © 2011 Linaro Limited
+ * Copyright © 2011 Raphaël Hertzog <hertzog@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <errno.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/db-ctrl.h>
+#include <dpkg/db-fsys.h>
+
+#include "main.h"
+
+struct deppossi_pkg_iterator {
+  struct deppossi *possi;
+  struct pkginfo *pkg_next;
+  enum which_pkgbin which_pkgbin;
+};
+
+struct deppossi_pkg_iterator *
+deppossi_pkg_iter_new(struct deppossi *possi, enum which_pkgbin wpb)
+{
+  struct deppossi_pkg_iterator *iter;
+
+  iter = m_malloc(sizeof(*iter));
+  iter->possi = possi;
+  iter->pkg_next = &possi->ed->pkg;
+  iter->which_pkgbin = wpb;
+
+  return iter;
+}
+
+struct pkginfo *
+deppossi_pkg_iter_next(struct deppossi_pkg_iterator *iter)
+{
+  struct pkginfo *pkg_cur;
+  struct pkgbin *pkgbin;
+
+  while ((pkg_cur = iter->pkg_next)) {
+    iter->pkg_next = pkg_cur->arch_next;
+
+    switch (iter->which_pkgbin) {
+    case wpb_installed:
+      pkgbin = &pkg_cur->installed;
+      break;
+    case wpb_available:
+      pkgbin = &pkg_cur->available;
+      break;
+    case wpb_by_istobe:
+      if (pkg_cur->clientdata &&
+          pkg_cur->clientdata->istobe == PKG_ISTOBE_INSTALLNEW)
+        pkgbin = &pkg_cur->available;
+      else
+        pkgbin = &pkg_cur->installed;
+      break;
+    default:
+      internerr("unknown which_pkgbin %d", iter->which_pkgbin);
+    }
+
+    if (archsatisfied(pkgbin, iter->possi))
+      return pkg_cur;
+  }
+
+  return NULL;
+}
+
+void
+deppossi_pkg_iter_free(struct deppossi_pkg_iterator *iter)
+{
+  free(iter);
+}
+
+struct cyclesofarlink {
+  struct cyclesofarlink *prev;
+  struct pkginfo *pkg;
+  struct deppossi *possi;
+};
+
+static bool findbreakcyclerecursive(struct pkginfo *pkg,
+                                    struct cyclesofarlink *sofar);
+
+static bool
+foundcyclebroken(struct cyclesofarlink *thislink, struct cyclesofarlink *sofar,
+                 struct pkginfo *dependedon, struct deppossi *possi)
+{
+  struct cyclesofarlink *sol;
+
+  if(!possi)
+    return false;
+
+  /* We're investigating the dependency ‘possi’ to see if it
+   * is part of a loop. To this end we look to see whether the
+   * depended-on package is already one of the packages whose
+   * dependencies we're searching. */
+  for (sol = sofar; sol && sol->pkg != dependedon; sol = sol->prev);
+
+  /* If not, we do a recursive search on it to see what we find. */
+  if (!sol)
+    return findbreakcyclerecursive(dependedon, thislink);
+
+  debug(dbg_depcon,"found cycle");
+  /* Right, we now break one of the links. We prefer to break
+   * a dependency of a package without a postinst script, as
+   * this is a null operation. If this is not possible we break
+   * the other link in the recursive calling tree which mentions
+   * this package (this being the first package involved in the
+   * cycle). It doesn't particularly matter which we pick, but if
+   * we break the earliest dependency we came across we may be
+   * able to do something straight away when findbreakcycle returns. */
+  sofar= thislink;
+  for (sol = sofar; !(sol != sofar && sol->pkg == dependedon); sol = sol->prev) {
+    if (!pkg_infodb_has_file(sol->pkg, &sol->pkg->installed, POSTINSTFILE))
+      break;
+  }
+
+  /* Now we have either a package with no postinst, or the other
+   * occurrence of the current package in the list. */
+  sol->possi->cyclebreak = true;
+
+  debug(dbg_depcon, "cycle broken at %s -> %s",
+        pkg_name(sol->possi->up->up, pnaw_always), sol->possi->ed->name);
+
+  return true;
+}
+
+/**
+ * Cycle breaking works recursively down the package dependency tree.
+ *
+ * ‘sofar’ is the list of packages we've descended down already - if we
+ * encounter any of its packages again in a dependency we have found a cycle.
+ */
+static bool
+findbreakcyclerecursive(struct pkginfo *pkg, struct cyclesofarlink *sofar)
+{
+  struct cyclesofarlink thislink, *sol;
+  struct dependency *dep;
+  struct deppossi *possi, *providelink;
+  struct pkginfo *provider, *pkg_pos;
+
+  if (pkg->clientdata->color == PKG_CYCLE_BLACK)
+    return false;
+  pkg->clientdata->color = PKG_CYCLE_GRAY;
+
+  if (debug_has_flag(dbg_depcondetail)) {
+    struct varbuf str_pkgs = VARBUF_INIT;
+
+    for (sol = sofar; sol; sol = sol->prev) {
+      varbuf_add_str(&str_pkgs, " <- ");
+      varbuf_add_pkgbin_name(&str_pkgs, sol->pkg, &sol->pkg->installed, pnaw_nonambig);
+    }
+    varbuf_end_str(&str_pkgs);
+    debug(dbg_depcondetail, "findbreakcyclerecursive %s %s",
+          pkg_name(pkg, pnaw_always), str_pkgs.buf);
+    varbuf_destroy(&str_pkgs);
+  }
+  thislink.pkg= pkg;
+  thislink.prev = sofar;
+  thislink.possi = NULL;
+  for (dep= pkg->installed.depends; dep; dep= dep->next) {
+    if (dep->type != dep_depends && dep->type != dep_predepends) continue;
+    for (possi= dep->list; possi; possi= possi->next) {
+      struct deppossi_pkg_iterator *possi_iter;
+
+      /* Don't find the same cycles again. */
+      if (possi->cyclebreak) continue;
+      thislink.possi= possi;
+
+      possi_iter = deppossi_pkg_iter_new(possi, wpb_installed);
+      while ((pkg_pos = deppossi_pkg_iter_next(possi_iter)))
+        if (foundcyclebroken(&thislink, sofar, pkg_pos, possi)) {
+          deppossi_pkg_iter_free(possi_iter);
+          return true;
+        }
+      deppossi_pkg_iter_free(possi_iter);
+
+      /* Right, now we try all the providers ... */
+      for (providelink = possi->ed->depended.installed;
+           providelink;
+           providelink = providelink->rev_next) {
+        if (providelink->up->type != dep_provides) continue;
+        provider= providelink->up->up;
+        if (provider->clientdata->istobe == PKG_ISTOBE_NORMAL)
+          continue;
+        /* We don't break things at ‘provides’ links, so ‘possi’ is
+         * still the one we use. */
+        if (foundcyclebroken(&thislink, sofar, provider, possi))
+          return true;
+      }
+    }
+  }
+  /* Nope, we didn't find a cycle to break. */
+  pkg->clientdata->color = PKG_CYCLE_BLACK;
+  return false;
+}
+
+bool
+findbreakcycle(struct pkginfo *pkg)
+{
+  struct pkg_hash_iter *iter;
+  struct pkginfo *tpkg;
+
+  /* Clear the visited flag of all packages before we traverse them. */
+  iter = pkg_hash_iter_new();
+  while ((tpkg = pkg_hash_iter_next_pkg(iter))) {
+    ensure_package_clientdata(tpkg);
+    tpkg->clientdata->color = PKG_CYCLE_WHITE;
+  }
+  pkg_hash_iter_free(iter);
+
+  return findbreakcyclerecursive(pkg, NULL);
+}
+
+void describedepcon(struct varbuf *addto, struct dependency *dep) {
+  struct varbuf depstr = VARBUF_INIT;
+
+  varbufdependency(&depstr, dep);
+  varbuf_end_str(&depstr);
+
+  switch (dep->type) {
+  case dep_depends:
+    varbuf_printf(addto, _("%s depends on %s"),
+                  pkg_name(dep->up, pnaw_nonambig), depstr.buf);
+    break;
+  case dep_predepends:
+    varbuf_printf(addto, _("%s pre-depends on %s"),
+                  pkg_name(dep->up, pnaw_nonambig), depstr.buf);
+    break;
+  case dep_recommends:
+    varbuf_printf(addto, _("%s recommends %s"),
+                  pkg_name(dep->up, pnaw_nonambig), depstr.buf);
+    break;
+  case dep_suggests:
+    varbuf_printf(addto, _("%s suggests %s"),
+                  pkg_name(dep->up, pnaw_nonambig), depstr.buf);
+    break;
+  case dep_breaks:
+    varbuf_printf(addto, _("%s breaks %s"),
+                  pkg_name(dep->up, pnaw_nonambig), depstr.buf);
+    break;
+  case dep_conflicts:
+    varbuf_printf(addto, _("%s conflicts with %s"),
+                  pkg_name(dep->up, pnaw_nonambig), depstr.buf);
+    break;
+  case dep_enhances:
+    varbuf_printf(addto, _("%s enhances %s"),
+                  pkg_name(dep->up, pnaw_nonambig), depstr.buf);
+    break;
+  default:
+    internerr("unknown deptype '%d'", dep->type);
+  }
+
+  varbuf_destroy(&depstr);
+}
+
+/*
+ * *whynot must already have been initialized; it need not be
+ * empty though - it will be reset before use.
+ *
+ * If depisok returns false for ‘not OK’ it will contain a description,
+ * newline-terminated BUT NOT NUL-TERMINATED, of the reason.
+ *
+ * If depisok returns true it will contain garbage.
+ * allowunconfigd should be non-zero during the ‘Pre-Depends’ checking
+ * before a package is unpacked, when it is sufficient for the package
+ * to be unpacked provided that both the unpacked and previously-configured
+ * versions are acceptable.
+ *
+ * On false return (‘not OK’), *canfixbyremove refers to a package which
+ * if removed (dep_conflicts) or deconfigured (dep_breaks) will fix
+ * the problem. Caller may pass NULL for canfixbyremove and need not
+ * initialize *canfixbyremove.
+ *
+ * On false return (‘not OK’), *canfixbytrigaw refers to a package which
+ * can fix the problem if all the packages listed in Triggers-Awaited have
+ * their triggers processed. Caller may pass NULL for canfixbytrigaw and
+ * need not initialize *canfixbytrigaw.
+ */
+bool
+depisok(struct dependency *dep, struct varbuf *whynot,
+        struct pkginfo **canfixbyremove, struct pkginfo **canfixbytrigaw,
+        bool allowunconfigd)
+{
+  struct deppossi *possi;
+  struct deppossi *provider;
+  struct pkginfo *pkg_pos;
+
+  /* Use this buffer so that when internationalization comes along we
+   * don't have to rewrite the code completely, only redo the sprintf strings
+   * (assuming we have the fancy argument-number-specifiers).
+   * Allow 250x3 for package names, versions, &c, + 250 for ourselves. */
+  char linebuf[1024];
+
+  if (dep->type != dep_depends &&
+      dep->type != dep_predepends &&
+      dep->type != dep_breaks &&
+      dep->type != dep_conflicts &&
+      dep->type != dep_recommends &&
+      dep->type != dep_suggests &&
+      dep->type != dep_enhances)
+    internerr("unknown dependency type %d", dep->type);
+
+  if (canfixbyremove)
+    *canfixbyremove = NULL;
+  if (canfixbytrigaw)
+    *canfixbytrigaw = NULL;
+
+  /* The dependency is always OK if we're trying to remove the depend*ing*
+   * package. */
+  switch (dep->up->clientdata->istobe) {
+  case PKG_ISTOBE_REMOVE:
+  case PKG_ISTOBE_DECONFIGURE:
+    return true;
+  case PKG_ISTOBE_NORMAL:
+    /* Only installed packages can be made dependency problems. */
+    switch (dep->up->status) {
+    case PKG_STAT_INSTALLED:
+    case PKG_STAT_TRIGGERSPENDING:
+    case PKG_STAT_TRIGGERSAWAITED:
+      break;
+    case PKG_STAT_HALFCONFIGURED:
+    case PKG_STAT_UNPACKED:
+    case PKG_STAT_HALFINSTALLED:
+      if (dep->type == dep_predepends ||
+          dep->type == dep_conflicts ||
+          dep->type == dep_breaks)
+        break;
+      /* Fall through. */
+    case PKG_STAT_CONFIGFILES:
+    case PKG_STAT_NOTINSTALLED:
+      return true;
+    default:
+      internerr("unknown status depending '%d'", dep->up->status);
+    }
+    break;
+  case PKG_ISTOBE_INSTALLNEW:
+  case PKG_ISTOBE_PREINSTALL:
+    break;
+  default:
+    internerr("unknown istobe depending '%d'", dep->up->clientdata->istobe);
+  }
+
+  /* Describe the dependency, in case we have to moan about it. */
+  varbuf_reset(whynot);
+  varbuf_add_char(whynot, ' ');
+  describedepcon(whynot, dep);
+  varbuf_add_char(whynot, '\n');
+
+  /* TODO: Check dep_enhances as well. */
+  if (dep->type == dep_depends || dep->type == dep_predepends ||
+      dep->type == dep_recommends || dep->type == dep_suggests ) {
+    /* Go through the alternatives. As soon as we find one that
+     * we like, we return ‘true’ straight away. Otherwise, when we get to
+     * the end we'll have accumulated all the reasons in whynot and
+     * can return ‘false’. */
+
+    for (possi= dep->list; possi; possi= possi->next) {
+      struct deppossi_pkg_iterator *possi_iter;
+
+      possi_iter = deppossi_pkg_iter_new(possi, wpb_by_istobe);
+      while ((pkg_pos = deppossi_pkg_iter_next(possi_iter))) {
+        switch (pkg_pos->clientdata->istobe) {
+        case PKG_ISTOBE_REMOVE:
+          sprintf(linebuf, _("  %.250s is to be removed.\n"),
+                  pkg_name(pkg_pos, pnaw_nonambig));
+          break;
+        case PKG_ISTOBE_DECONFIGURE:
+          sprintf(linebuf, _("  %.250s is to be deconfigured.\n"),
+                  pkg_name(pkg_pos, pnaw_nonambig));
+          break;
+        case PKG_ISTOBE_INSTALLNEW:
+          if (versionsatisfied(&pkg_pos->available, possi)) {
+            deppossi_pkg_iter_free(possi_iter);
+            return true;
+          }
+          sprintf(linebuf, _("  %.250s is to be installed, but is version "
+                             "%.250s.\n"),
+                  pkgbin_name(pkg_pos, &pkg_pos->available, pnaw_nonambig),
+                  versiondescribe(&pkg_pos->available.version, vdew_nonambig));
+          break;
+        case PKG_ISTOBE_NORMAL:
+        case PKG_ISTOBE_PREINSTALL:
+          switch (pkg_pos->status) {
+          case PKG_STAT_INSTALLED:
+          case PKG_STAT_TRIGGERSPENDING:
+            if (versionsatisfied(&pkg_pos->installed, possi)) {
+              deppossi_pkg_iter_free(possi_iter);
+              return true;
+            }
+            sprintf(linebuf, _("  %.250s is installed, but is version "
+                               "%.250s.\n"),
+                    pkg_name(pkg_pos, pnaw_nonambig),
+                    versiondescribe(&pkg_pos->installed.version, vdew_nonambig));
+            break;
+          case PKG_STAT_NOTINSTALLED:
+            /* Don't say anything about this yet - it might be a virtual package.
+             * Later on, if nothing has put anything in linebuf, we know that it
+             * isn't and issue a diagnostic then. */
+            *linebuf = '\0';
+            break;
+          case PKG_STAT_TRIGGERSAWAITED:
+              if (canfixbytrigaw && versionsatisfied(&pkg_pos->installed, possi))
+                *canfixbytrigaw = pkg_pos;
+              /* Fall through. */
+          case PKG_STAT_UNPACKED:
+          case PKG_STAT_HALFCONFIGURED:
+            if (allowunconfigd) {
+              if (!dpkg_version_is_informative(&pkg_pos->configversion)) {
+                sprintf(linebuf, _("  %.250s is unpacked, but has never been "
+                                   "configured.\n"),
+                        pkg_name(pkg_pos, pnaw_nonambig));
+                break;
+              } else if (!versionsatisfied(&pkg_pos->installed, possi)) {
+                sprintf(linebuf, _("  %.250s is unpacked, but is version "
+                                   "%.250s.\n"),
+                        pkg_name(pkg_pos, pnaw_nonambig),
+                        versiondescribe(&pkg_pos->installed.version,
+                                        vdew_nonambig));
+                break;
+              } else if (!dpkg_version_relate(&pkg_pos->configversion,
+                                              possi->verrel,
+                                              &possi->version)) {
+                sprintf(linebuf, _("  %.250s latest configured version is "
+                                   "%.250s.\n"),
+                        pkg_name(pkg_pos, pnaw_nonambig),
+                        versiondescribe(&pkg_pos->configversion, vdew_nonambig));
+                break;
+              } else {
+                deppossi_pkg_iter_free(possi_iter);
+                return true;
+              }
+            }
+            /* Fall through. */
+          default:
+            sprintf(linebuf, _("  %.250s is %s.\n"),
+                    pkg_name(pkg_pos, pnaw_nonambig),
+                    gettext(statusstrings[pkg_pos->status]));
+            break;
+          }
+          break;
+        default:
+          internerr("unknown istobe depended '%d'", pkg_pos->clientdata->istobe);
+        }
+        varbuf_add_str(whynot, linebuf);
+      }
+      deppossi_pkg_iter_free(possi_iter);
+
+        /* See if the package we're about to install Provides it. */
+        for (provider = possi->ed->depended.available;
+             provider;
+             provider = provider->rev_next) {
+          if (provider->up->type != dep_provides) continue;
+          if (!pkg_virtual_deppossi_satisfied(possi, provider))
+            continue;
+          if (provider->up->up->clientdata->istobe == PKG_ISTOBE_INSTALLNEW)
+            return true;
+        }
+
+        /* Now look at the packages already on the system. */
+        for (provider = possi->ed->depended.installed;
+             provider;
+             provider = provider->rev_next) {
+          if (provider->up->type != dep_provides) continue;
+          if (!pkg_virtual_deppossi_satisfied(possi, provider))
+            continue;
+
+          switch (provider->up->up->clientdata->istobe) {
+          case PKG_ISTOBE_INSTALLNEW:
+            /* Don't pay any attention to the Provides field of the
+             * currently-installed version of the package we're trying
+             * to install. We dealt with that by using the available
+             * information above. */
+            continue;
+          case PKG_ISTOBE_REMOVE:
+            sprintf(linebuf, _("  %.250s provides %.250s but is to be removed.\n"),
+                    pkg_name(provider->up->up, pnaw_nonambig),
+                    possi->ed->name);
+            break;
+          case PKG_ISTOBE_DECONFIGURE:
+            sprintf(linebuf, _("  %.250s provides %.250s but is to be deconfigured.\n"),
+                    pkg_name(provider->up->up, pnaw_nonambig),
+                    possi->ed->name);
+            break;
+          case PKG_ISTOBE_NORMAL:
+          case PKG_ISTOBE_PREINSTALL:
+            if (provider->up->up->status == PKG_STAT_INSTALLED ||
+                provider->up->up->status == PKG_STAT_TRIGGERSPENDING)
+              return true;
+            if (provider->up->up->status == PKG_STAT_TRIGGERSAWAITED)
+              *canfixbytrigaw = provider->up->up;
+            sprintf(linebuf, _("  %.250s provides %.250s but is %s.\n"),
+                    pkg_name(provider->up->up, pnaw_nonambig),
+                    possi->ed->name,
+                    gettext(statusstrings[provider->up->up->status]));
+            break;
+          default:
+            internerr("unknown istobe provider '%d'",
+                      provider->up->up->clientdata->istobe);
+          }
+          varbuf_add_str(whynot, linebuf);
+        }
+
+        if (!*linebuf) {
+          /* If the package wasn't installed at all, and we haven't said
+           * yet why this isn't satisfied, we should say so now. */
+          sprintf(linebuf, _("  %.250s is not installed.\n"), possi->ed->name);
+          varbuf_add_str(whynot, linebuf);
+        }
+    }
+
+    return false;
+  } else {
+    int nconflicts;
+
+    /* It's conflicts or breaks. There's only one main alternative,
+     * but we also have to consider Providers. We return ‘false’ as soon
+     * as we find something that matches the conflict, and only describe
+     * it then. If we get to the end without finding anything we return
+     * ‘true’. */
+
+    possi= dep->list;
+    nconflicts= 0;
+
+    if (possi->ed != possi->up->up->set) {
+      struct deppossi_pkg_iterator *possi_iter;
+
+      /* If the package conflicts with or breaks itself it must mean
+       * other packages which provide the same virtual name. We
+       * therefore don't look at the real package and go on to the
+       * virtual ones. */
+
+      possi_iter = deppossi_pkg_iter_new(possi, wpb_by_istobe);
+      while ((pkg_pos = deppossi_pkg_iter_next(possi_iter))) {
+        switch (pkg_pos->clientdata->istobe) {
+        case PKG_ISTOBE_REMOVE:
+          break;
+        case PKG_ISTOBE_INSTALLNEW:
+          if (!versionsatisfied(&pkg_pos->available, possi))
+            break;
+          sprintf(linebuf, _("  %.250s (version %.250s) is to be installed.\n"),
+                  pkgbin_name(pkg_pos, &pkg_pos->available, pnaw_nonambig),
+                  versiondescribe(&pkg_pos->available.version, vdew_nonambig));
+          varbuf_add_str(whynot, linebuf);
+          if (!canfixbyremove) {
+            deppossi_pkg_iter_free(possi_iter);
+            return false;
+          }
+          nconflicts++;
+          *canfixbyremove = pkg_pos;
+          break;
+        case PKG_ISTOBE_DECONFIGURE:
+          if (dep->type == dep_breaks)
+            break; /* Already deconfiguring this. */
+          /* Fall through. */
+        case PKG_ISTOBE_NORMAL:
+        case PKG_ISTOBE_PREINSTALL:
+          switch (pkg_pos->status) {
+          case PKG_STAT_NOTINSTALLED:
+          case PKG_STAT_CONFIGFILES:
+            break;
+          case PKG_STAT_HALFINSTALLED:
+          case PKG_STAT_UNPACKED:
+          case PKG_STAT_HALFCONFIGURED:
+            if (dep->type == dep_breaks)
+              break; /* No problem. */
+            /* Fall through. */
+          case PKG_STAT_INSTALLED:
+          case PKG_STAT_TRIGGERSPENDING:
+          case PKG_STAT_TRIGGERSAWAITED:
+            if (!versionsatisfied(&pkg_pos->installed, possi))
+              break;
+            sprintf(linebuf, _("  %.250s (version %.250s) is present and %s.\n"),
+                    pkg_name(pkg_pos, pnaw_nonambig),
+                    versiondescribe(&pkg_pos->installed.version, vdew_nonambig),
+                    gettext(statusstrings[pkg_pos->status]));
+            varbuf_add_str(whynot, linebuf);
+            if (!canfixbyremove) {
+              deppossi_pkg_iter_free(possi_iter);
+              return false;
+            }
+            nconflicts++;
+            *canfixbyremove = pkg_pos;
+          }
+          break;
+        default:
+          internerr("unknown istobe conflict '%d'", pkg_pos->clientdata->istobe);
+        }
+      }
+      deppossi_pkg_iter_free(possi_iter);
+    }
+
+      /* See if the package we're about to install Provides it. */
+      for (provider = possi->ed->depended.available;
+           provider;
+           provider = provider->rev_next) {
+        if (provider->up->type != dep_provides) continue;
+        if (provider->up->up->clientdata->istobe != PKG_ISTOBE_INSTALLNEW)
+          continue;
+        if (provider->up->up->set == dep->up->set)
+          continue; /* Conflicts and provides the same. */
+        if (!pkg_virtual_deppossi_satisfied(possi, provider))
+          continue;
+        sprintf(linebuf, _("  %.250s provides %.250s and is to be installed.\n"),
+                pkgbin_name(provider->up->up, &provider->up->up->available,
+                            pnaw_nonambig), possi->ed->name);
+        varbuf_add_str(whynot, linebuf);
+        /* We can't remove the one we're about to install: */
+        if (canfixbyremove)
+          *canfixbyremove = NULL;
+        return false;
+      }
+
+      /* Now look at the packages already on the system. */
+      for (provider = possi->ed->depended.installed;
+           provider;
+           provider = provider->rev_next) {
+        if (provider->up->type != dep_provides) continue;
+
+        if (provider->up->up->set == dep->up->set)
+          continue; /* Conflicts and provides the same. */
+
+        if (!pkg_virtual_deppossi_satisfied(possi, provider))
+          continue;
+
+        switch (provider->up->up->clientdata->istobe) {
+        case PKG_ISTOBE_INSTALLNEW:
+          /* Don't pay any attention to the Provides field of the
+           * currently-installed version of the package we're trying
+           * to install. We dealt with that package by using the
+           * available information above. */
+          continue;
+        case PKG_ISTOBE_REMOVE:
+          continue;
+        case PKG_ISTOBE_DECONFIGURE:
+          if (dep->type == dep_breaks)
+            continue; /* Already deconfiguring. */
+          /* Fall through. */
+        case PKG_ISTOBE_NORMAL:
+        case PKG_ISTOBE_PREINSTALL:
+          switch (provider->up->up->status) {
+          case PKG_STAT_NOTINSTALLED:
+          case PKG_STAT_CONFIGFILES:
+            continue;
+          case PKG_STAT_HALFINSTALLED:
+          case PKG_STAT_UNPACKED:
+          case PKG_STAT_HALFCONFIGURED:
+            if (dep->type == dep_breaks)
+              break; /* No problem. */
+            /* Fall through. */
+          case PKG_STAT_INSTALLED:
+          case PKG_STAT_TRIGGERSPENDING:
+          case PKG_STAT_TRIGGERSAWAITED:
+            sprintf(linebuf,
+                    _("  %.250s provides %.250s and is present and %s.\n"),
+                    pkg_name(provider->up->up, pnaw_nonambig), possi->ed->name,
+                    gettext(statusstrings[provider->up->up->status]));
+            varbuf_add_str(whynot, linebuf);
+            if (!canfixbyremove)
+              return false;
+            nconflicts++;
+            *canfixbyremove= provider->up->up;
+            break;
+          }
+          break;
+        default:
+          internerr("unknown istobe conflict provider '%d'",
+                    provider->up->up->clientdata->istobe);
+        }
+      }
+
+    if (!nconflicts)
+      return true;
+    if (nconflicts > 1)
+      *canfixbyremove = NULL;
+    return false;
+
+  } /* if (dependency) {...} else {...} */
+}
diff --git a/src/main/enquiry.c b/src/main/enquiry.c
new file mode 100644
index 0000000..cc605c2
--- /dev/null
+++ b/src/main/enquiry.c
@@ -0,0 +1,906 @@
+/*
+ * dpkg - main program for package management
+ * enquiry.c - status enquiry and listing options
+ *
+ * Copyright © 1995,1996 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2006, 2008-2016 Guillem Jover <guillem@debian.org>
+ * Copyright © 2011 Linaro Limited
+ * Copyright © 2011 Raphaël Hertzog <hertzog@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/types.h>
+
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/arch.h>
+#include <dpkg/pkg-array.h>
+#include <dpkg/pkg-show.h>
+#include <dpkg/triglib.h>
+#include <dpkg/string.h>
+#include <dpkg/options.h>
+#include <dpkg/db-ctrl.h>
+#include <dpkg/db-fsys.h>
+
+#include "main.h"
+
+struct audit_problem {
+  bool (*check)(struct pkginfo *, const struct audit_problem *problem);
+  union {
+    int number;
+    const char *string;
+  } value;
+  const char *explanation;
+};
+
+static bool
+audit_reinstreq(struct pkginfo *pkg, const struct audit_problem *problem)
+{
+  return pkg->eflag & PKG_EFLAG_REINSTREQ;
+}
+
+static bool
+audit_status(struct pkginfo *pkg, const struct audit_problem *problem)
+{
+  if (pkg->eflag & PKG_EFLAG_REINSTREQ)
+    return false;
+  return (int)pkg->status == problem->value.number;
+}
+
+static bool
+audit_infofile(struct pkginfo *pkg, const struct audit_problem *problem)
+{
+  if (pkg->status < PKG_STAT_HALFINSTALLED)
+    return false;
+  return !pkg_infodb_has_file(pkg, &pkg->installed, problem->value.string);
+}
+
+static bool
+audit_arch(struct pkginfo *pkg, const struct audit_problem *problem)
+{
+  if (pkg->status < PKG_STAT_HALFINSTALLED)
+    return false;
+  return pkg->installed.arch->type == (enum dpkg_arch_type)problem->value.number;
+}
+
+static const struct audit_problem audit_problems[] = {
+  {
+    .check = audit_reinstreq,
+    .value.number = 0,
+    .explanation = N_(
+    "The following packages are in a mess due to serious problems during\n"
+    "installation.  They must be reinstalled for them (and any packages\n"
+    "that depend on them) to function properly:\n")
+  }, {
+    .check = audit_status,
+    .value.number = PKG_STAT_UNPACKED,
+    .explanation = N_(
+    "The following packages have been unpacked but not yet configured.\n"
+    "They must be configured using dpkg --configure or the configure\n"
+    "menu option in dselect for them to work:\n")
+  }, {
+    .check = audit_status,
+    .value.number = PKG_STAT_HALFCONFIGURED,
+    .explanation = N_(
+    "The following packages are only half configured, probably due to problems\n"
+    "configuring them the first time.  The configuration should be retried using\n"
+    "dpkg --configure <package> or the configure menu option in dselect:\n")
+  }, {
+    .check = audit_status,
+    .value.number = PKG_STAT_HALFINSTALLED,
+    .explanation = N_(
+    "The following packages are only half installed, due to problems during\n"
+    "installation.  The installation can probably be completed by retrying it;\n"
+    "the packages can be removed using dselect or dpkg --remove:\n")
+  }, {
+    .check = audit_status,
+    .value.number = PKG_STAT_TRIGGERSAWAITED,
+    .explanation = N_(
+    "The following packages are awaiting processing of triggers that they\n"
+    "have activated in other packages.  This processing can be requested using\n"
+    "dselect or dpkg --configure --pending (or dpkg --triggers-only):\n")
+  }, {
+    .check = audit_status,
+    .value.number = PKG_STAT_TRIGGERSPENDING,
+    .explanation = N_(
+    "The following packages have been triggered, but the trigger processing\n"
+    "has not yet been done.  Trigger processing can be requested using\n"
+    "dselect or dpkg --configure --pending (or dpkg --triggers-only):\n")
+  }, {
+    .check = audit_infofile,
+    .value.string = LISTFILE,
+    .explanation = N_(
+    "The following packages are missing the list control file in the\n"
+    "database, they need to be reinstalled:\n")
+  }, {
+    .check = audit_infofile,
+    .value.string = HASHFILE,
+    .explanation = N_(
+    "The following packages are missing the md5sums control file in the\n"
+    "database, they need to be reinstalled:\n")
+  }, {
+    .check = audit_arch,
+    .value.number = DPKG_ARCH_EMPTY,
+    .explanation = N_("The following packages do not have an architecture:\n")
+  }, {
+    .check = audit_arch,
+    .value.number = DPKG_ARCH_ILLEGAL,
+    .explanation = N_("The following packages have an illegal architecture:\n")
+  }, {
+    .check = audit_arch,
+    .value.number = DPKG_ARCH_UNKNOWN,
+    .explanation = N_(
+    "The following packages have an unknown foreign architecture, which will\n"
+    "cause dependency issues on front-ends. This can be fixed by registering\n"
+    "the foreign architecture with dpkg --add-architecture:\n")
+  }, {
+    .check = NULL
+  }
+};
+
+static void describebriefly(struct pkginfo *pkg) {
+  int maxl, l;
+  const char *pdesc;
+
+  maxl= 57;
+  l= strlen(pkg->set->name);
+  if (l>20) maxl -= (l-20);
+
+  pdesc = pkgbin_synopsis(pkg, &pkg->installed, &l);
+  l = min(l, maxl);
+
+  printf(" %-20s %.*s\n", pkg_name(pkg, pnaw_nonambig), l, pdesc);
+}
+
+static struct pkginfo *
+pkg_array_mapper(const char *name)
+{
+  struct pkginfo *pkg;
+
+  pkg = dpkg_options_parse_pkgname(cipaction, name);
+  if (pkg->status == PKG_STAT_NOTINSTALLED)
+    notice(_("package '%s' is not installed"), pkg_name(pkg, pnaw_nonambig));
+
+  return pkg;
+}
+
+int
+audit(const char *const *argv)
+{
+  const struct audit_problem *problem;
+  struct pkg_array array;
+  bool head_running = false;
+  int i;
+
+  modstatdb_open(msdbrw_readonly);
+
+  if (!*argv)
+    pkg_array_init_from_hash(&array);
+  else
+    pkg_array_init_from_names(&array, pkg_array_mapper, (const char **)argv);
+
+  pkg_array_sort(&array, pkg_sorter_by_nonambig_name_arch);
+
+  for (problem = audit_problems; problem->check; problem++) {
+    bool head = false;
+
+    for (i = 0; i < array.n_pkgs; i++) {
+      struct pkginfo *pkg = array.pkgs[i];
+
+      if (!problem->check(pkg, problem))
+        continue;
+      if (!head_running) {
+        if (modstatdb_is_locked())
+          puts(_(
+"Another process has locked the database for writing, and might currently be\n"
+"modifying it, some of the following problems might just be due to that.\n"));
+        head_running = true;
+      }
+      if (!head) {
+        fputs(gettext(problem->explanation), stdout);
+        head = true;
+      }
+      describebriefly(pkg);
+    }
+
+    if (head) putchar('\n');
+  }
+
+  pkg_array_destroy(&array);
+
+  m_output(stdout, _("<standard output>"));
+
+  return 0;
+}
+
+struct sectionentry {
+  struct sectionentry *next;
+  const char *name;
+  int count;
+};
+
+static bool
+yettobeunpacked(struct pkginfo *pkg, const char **thissect)
+{
+  if (pkg->want != PKG_WANT_INSTALL)
+    return false;
+
+  switch (pkg->status) {
+  case PKG_STAT_UNPACKED:
+  case PKG_STAT_INSTALLED:
+  case PKG_STAT_HALFCONFIGURED:
+  case PKG_STAT_TRIGGERSPENDING:
+  case PKG_STAT_TRIGGERSAWAITED:
+    return false;
+  case PKG_STAT_NOTINSTALLED:
+  case PKG_STAT_HALFINSTALLED:
+  case PKG_STAT_CONFIGFILES:
+    if (thissect)
+      *thissect = str_is_set(pkg->section) ? pkg->section :
+                                             C_("section", "<unknown>");
+    return true;
+  default:
+    internerr("unknown package status '%d'", pkg->status);
+  }
+  return false;
+}
+
+int
+unpackchk(const char *const *argv)
+{
+  int totalcount, sects;
+  struct sectionentry *sectionentries, *se, **sep;
+  struct pkg_hash_iter *iter;
+  struct pkginfo *pkg;
+  const char *thissect;
+  char buf[20];
+  int width;
+
+  if (*argv)
+    badusage(_("--%s takes no arguments"), cipaction->olong);
+
+  modstatdb_open(msdbrw_readonly);
+
+  totalcount= 0;
+  sectionentries = NULL;
+  sects= 0;
+  iter = pkg_hash_iter_new();
+  while ((pkg = pkg_hash_iter_next_pkg(iter))) {
+    if (!yettobeunpacked(pkg, &thissect)) continue;
+    for (se= sectionentries; se && strcasecmp(thissect,se->name); se= se->next);
+    if (!se) {
+      se = nfmalloc(sizeof(*se));
+      for (sep= &sectionentries;
+           *sep && strcasecmp(thissect,(*sep)->name) > 0;
+           sep= &(*sep)->next);
+      se->name= thissect;
+      se->count= 0;
+      se->next= *sep;
+      *sep= se;
+      sects++;
+    }
+    se->count++; totalcount++;
+  }
+  pkg_hash_iter_free(iter);
+
+  if (totalcount == 0)
+    return 0;
+
+  if (totalcount <= 12) {
+    iter = pkg_hash_iter_new();
+    while ((pkg = pkg_hash_iter_next_pkg(iter))) {
+      if (!yettobeunpacked(pkg, NULL))
+        continue;
+      describebriefly(pkg);
+    }
+    pkg_hash_iter_free(iter);
+  } else if (sects <= 12) {
+    for (se= sectionentries; se; se= se->next) {
+      sprintf(buf,"%d",se->count);
+      printf(_(" %d in %s: "),se->count,se->name);
+      width= 70-strlen(se->name)-strlen(buf);
+      while (width > 59) { putchar(' '); width--; }
+      iter = pkg_hash_iter_new();
+      while ((pkg = pkg_hash_iter_next_pkg(iter))) {
+        const char *pkgname;
+
+        if (!yettobeunpacked(pkg,&thissect)) continue;
+        if (strcasecmp(thissect,se->name)) continue;
+        pkgname = pkg_name(pkg, pnaw_nonambig);
+        width -= strlen(pkgname);
+        width--;
+        if (width < 4) { printf(" ..."); break; }
+        printf(" %s", pkgname);
+      }
+      pkg_hash_iter_free(iter);
+      putchar('\n');
+    }
+  } else {
+    printf(P_(" %d package, from the following section:",
+              " %d packages, from the following sections:", totalcount),
+           totalcount);
+    width= 0;
+    for (se= sectionentries; se; se= se->next) {
+      sprintf(buf,"%d",se->count);
+      width -= (6 + strlen(se->name) + strlen(buf));
+      if (width < 0) { putchar('\n'); width= 73 - strlen(se->name) - strlen(buf); }
+      printf("   %s (%d)",se->name,se->count);
+    }
+    putchar('\n');
+  }
+
+  m_output(stdout, _("<standard output>"));
+
+  return 0;
+}
+
+static const struct assert_feature {
+  const char *name;
+  const char *desc;
+  const char *version;
+} assert_features[] = {
+  {
+    .name = "support-predepends",
+    .desc = N_("the Pre-Depends field"),
+    .version = "1.1.0",
+  }, {
+    .name = "working-epoch",
+    .desc = N_("epochs in versions"),
+    .version = "1.4.0.7",
+  }, {
+    .name = "long-filenames",
+    .desc = N_("long filenames in .deb archives"),
+    .version = "1.4.1.17",
+  }, {
+    .name = "multi-conrep",
+    .desc = N_("multiple Conflicts and Replaces"),
+    .version = "1.4.1.19",
+  }, {
+    .name = "multi-arch",
+    .desc = N_("multi-arch fields and semantics"),
+    .version = "1.16.2",
+  }, {
+    .name = "versioned-provides",
+    .desc = N_("versioned relationships in the Provides field"),
+    .version = "1.17.11",
+  }, {
+    .name = "protected-field",
+    .desc = N_("the Protected field"),
+    .version = "1.20.1",
+  }, {
+    .name = NULL,
+  }
+};
+
+static int
+assert_version_support(const char *const *argv,
+                       const struct assert_feature *feature)
+{
+  const char *running_version_str;
+  struct dpkg_version running_version = DPKG_VERSION_INIT;
+  struct dpkg_version version = { 0, feature->version, NULL };
+  struct dpkg_error err = DPKG_ERROR_INIT;
+
+  if (*argv)
+    badusage(_("--%s takes no arguments"), cipaction->olong);
+
+  /*
+   * When using the feature asserts, we want to know whether the currently
+   * running dpkg, which we might be running under (say from within a
+   * maintainer script) and which might have a different version, supports
+   * the requested feature. As dpkg is an Essential package, it is expected
+   * to work even when just unpacked, and so its own version is enough.
+   */
+  running_version_str = getenv("DPKG_RUNNING_VERSION");
+
+  /*
+   * If we are not running from within a maintainer script, then that means
+   * once we do, the executed dpkg will support the requested feature, if
+   * we know about it. Always return success in that case.
+   */
+  if (str_is_unset(running_version_str))
+    return 0;
+
+  if (parseversion(&running_version, running_version_str, &err) < 0)
+    ohshit(_("cannot parse dpkg running version '%s': %s"),
+           running_version_str, err.str);
+
+  if (dpkg_version_relate(&running_version, DPKG_RELATION_GE, &version))
+    return 0;
+
+  printf(_("Running version of dpkg does not support %s.\n"
+           " Please upgrade to at least dpkg %s, and then try again.\n"),
+         feature->desc, versiondescribe(&version, vdew_nonambig));
+  return 1;
+}
+
+const char *assert_feature_name;
+
+int
+assert_feature(const char *const *argv)
+{
+  const struct assert_feature *feature;
+
+  if (strcmp(assert_feature_name, "help") == 0) {
+    printf(_("%s assert options - assert whether features are supported:\n"),
+           dpkg_get_progname());
+
+    for (feature = assert_features; feature->name; feature++) {
+      printf("  %-19s %-9s %s\n", feature->name, feature->version,
+             gettext(feature->desc));
+    }
+
+    exit(0);
+  }
+
+  for (feature = assert_features; feature->name; feature++) {
+    if (strcmp(feature->name, assert_feature_name) != 0)
+      continue;
+
+    return assert_version_support(argv, feature);
+  }
+
+  badusage(_("unknown --%s-<feature>"), cipaction->olong);
+}
+
+/**
+ * Print a single package which:
+ *  (a) is the target of one or more relevant predependencies.
+ *  (b) has itself no unsatisfied pre-dependencies.
+ *
+ * If such a package is present output is the Packages file entry,
+ * which can be massaged as appropriate.
+ *
+ * Exit status:
+ *  0 = a package printed, OK
+ *  1 = no suitable package available
+ *  2 = error
+ */
+int
+predeppackage(const char *const *argv)
+{
+  static struct varbuf vb;
+
+  struct pkg_hash_iter *iter;
+  struct pkginfo *pkg = NULL, *startpkg, *trypkg;
+  struct dependency *dep;
+  struct deppossi *possi, *provider;
+
+  if (*argv)
+    badusage(_("--%s takes no arguments"), cipaction->olong);
+
+  modstatdb_open(msdbrw_readonly | msdbrw_available_readonly);
+  /* We use clientdata->istobe to detect loops. */
+  clear_istobes();
+
+  dep = NULL;
+  iter = pkg_hash_iter_new();
+  while (!dep && (pkg = pkg_hash_iter_next_pkg(iter))) {
+    /* Ignore packages user doesn't want. */
+    if (pkg->want != PKG_WANT_INSTALL)
+      continue;
+    /* Ignore packages not available. */
+    if (!pkg->archives)
+      continue;
+    pkg->clientdata->istobe = PKG_ISTOBE_PREINSTALL;
+    for (dep= pkg->available.depends; dep; dep= dep->next) {
+      if (dep->type != dep_predepends) continue;
+      if (depisok(dep, &vb, NULL, NULL, true))
+        continue;
+      /* This will leave dep non-NULL, and so exit the loop. */
+      break;
+    }
+    pkg->clientdata->istobe = PKG_ISTOBE_NORMAL;
+    /* If dep is NULL we go and get the next package. */
+  }
+  pkg_hash_iter_free(iter);
+
+  if (!dep)
+    return 1; /* Not found. */
+  if (pkg == NULL)
+    internerr("unexpected unfound package");
+
+  startpkg= pkg;
+  pkg->clientdata->istobe = PKG_ISTOBE_PREINSTALL;
+
+  /* OK, we have found an unsatisfied predependency.
+   * Now go and find the first thing we need to install, as a first step
+   * towards satisfying it. */
+  do {
+    /* We search for a package which would satisfy dep, and put it in pkg. */
+    for (possi = dep->list, pkg = NULL;
+         !pkg && possi;
+         possi=possi->next) {
+      struct deppossi_pkg_iterator *possi_iter;
+
+      possi_iter = deppossi_pkg_iter_new(possi, wpb_available);
+      while (!pkg && (trypkg = deppossi_pkg_iter_next(possi_iter))) {
+        if (trypkg->archives &&
+            trypkg->clientdata->istobe == PKG_ISTOBE_NORMAL &&
+            versionsatisfied(&trypkg->available, possi)) {
+          pkg = trypkg;
+          break;
+        }
+        for (provider = possi->ed->depended.available;
+             !pkg && provider;
+             provider = provider->next) {
+          if (provider->up->type != dep_provides)
+            continue;
+          if (!pkg_virtual_deppossi_satisfied(possi, provider))
+            continue;
+          trypkg = provider->up->up;
+          if (!trypkg->archives)
+            continue;
+          if (trypkg->clientdata->istobe == PKG_ISTOBE_NORMAL) {
+            pkg = trypkg;
+            break;
+          }
+        }
+      }
+      deppossi_pkg_iter_free(possi_iter);
+    }
+    if (!pkg) {
+      varbuf_reset(&vb);
+      describedepcon(&vb,dep);
+      varbuf_end_str(&vb);
+      notice(_("cannot see how to satisfy pre-dependency:\n %s"), vb.buf);
+      ohshit(_("cannot satisfy pre-dependencies for %.250s (wanted due to %.250s)"),
+             pkgbin_name(dep->up, &dep->up->available, pnaw_nonambig),
+             pkgbin_name(startpkg, &startpkg->available, pnaw_nonambig));
+    }
+    pkg->clientdata->istobe = PKG_ISTOBE_PREINSTALL;
+    for (dep= pkg->available.depends; dep; dep= dep->next) {
+      if (dep->type != dep_predepends) continue;
+      if (depisok(dep, &vb, NULL, NULL, true))
+        continue;
+      /* This will leave dep non-NULL, and so exit the loop. */
+      break;
+    }
+  } while (dep);
+
+  /* OK, we've found it - pkg has no unsatisfied pre-dependencies! */
+  write_stanza(stdout, _("<standard output>"), pkg, &pkg->available);
+
+  m_output(stdout, _("<standard output>"));
+
+  return 0;
+}
+
+int
+printarch(const char *const *argv)
+{
+  if (*argv)
+    badusage(_("--%s takes no arguments"), cipaction->olong);
+
+  printf("%s\n", dpkg_arch_get(DPKG_ARCH_NATIVE)->name);
+
+  m_output(stdout, _("<standard output>"));
+
+  return 0;
+}
+
+int
+print_foreign_arches(const char *const *argv)
+{
+  struct dpkg_arch *arch;
+
+  if (*argv)
+    badusage(_("--%s takes no arguments"), cipaction->olong);
+
+  dpkg_arch_load_list();
+
+  for (arch = dpkg_arch_get_list(); arch; arch = arch->next) {
+    if (arch->type != DPKG_ARCH_FOREIGN)
+      continue;
+
+    printf("%s\n", arch->name);
+  }
+
+  m_output(stdout, _("<standard output>"));
+
+  return 0;
+}
+
+int
+validate_pkgname(const char *const *argv)
+{
+  const char *emsg;
+
+  if (!argv[0] || argv[1])
+    badusage(_("--%s takes one <pkgname> argument"), cipaction->olong);
+
+  emsg = pkg_name_is_illegal(argv[0]);
+  if (emsg)
+    ohshit(_("package name '%s' is invalid: %s"), argv[0], emsg);
+
+  return 0;
+}
+
+int
+validate_trigname(const char *const *argv)
+{
+  const char *emsg;
+
+  if (!argv[0] || argv[1])
+    badusage(_("--%s takes one <trigname> argument"), cipaction->olong);
+
+  emsg = trig_name_is_illegal(argv[0]);
+  if (emsg)
+    ohshit(_("trigger name '%s' is invalid: %s"), argv[0], emsg);
+
+  return 0;
+}
+
+int
+validate_archname(const char *const *argv)
+{
+  const char *emsg;
+
+  if (!argv[0] || argv[1])
+    badusage(_("--%s takes one <archname> argument"), cipaction->olong);
+
+  emsg = dpkg_arch_name_is_illegal(argv[0]);
+  if (emsg)
+    ohshit(_("architecture name '%s' is invalid: %s"), argv[0], emsg);
+
+  return 0;
+}
+
+int
+validate_version(const char *const *argv)
+{
+  struct dpkg_version version;
+  struct dpkg_error err;
+
+  if (!argv[0] || argv[1])
+    badusage(_("--%s takes one <version> argument"), cipaction->olong);
+
+  if (parseversion(&version, argv[0], &err) < 0) {
+    dpkg_error_print(&err, _("version '%s' has bad syntax"), argv[0]);
+    dpkg_error_destroy(&err);
+
+    return 1;
+  }
+
+  return 0;
+}
+
+int
+cmpversions(const char *const *argv)
+{
+  struct relationinfo {
+    const char *op;
+    /* These values are exit status codes. */
+    int if_lesser, if_equal, if_greater;
+    int if_none_a, if_none_both, if_none_b;
+    bool obsolete;
+  };
+
+  static const struct relationinfo relationinfos[]= {
+    {
+      .op = "le",
+      .if_lesser = EXIT_SUCCESS,
+      .if_equal = EXIT_SUCCESS,
+      .if_greater = EXIT_FAILURE,
+      .if_none_a = EXIT_SUCCESS,
+      .if_none_both = EXIT_SUCCESS,
+      .if_none_b = EXIT_FAILURE,
+    }, {
+      .op = "lt",
+      .if_lesser = EXIT_SUCCESS,
+      .if_equal = EXIT_FAILURE,
+      .if_greater = EXIT_FAILURE,
+      .if_none_a = EXIT_SUCCESS,
+      .if_none_both = EXIT_FAILURE,
+      .if_none_b = EXIT_FAILURE,
+    }, {
+      .op = "eq",
+      .if_lesser = EXIT_FAILURE,
+      .if_equal = EXIT_SUCCESS,
+      .if_greater = EXIT_FAILURE,
+      .if_none_a = EXIT_FAILURE,
+      .if_none_both = EXIT_SUCCESS,
+      .if_none_b = EXIT_FAILURE,
+    }, {
+      .op = "ne",
+      .if_lesser = EXIT_SUCCESS,
+      .if_equal = EXIT_FAILURE,
+      .if_greater = EXIT_SUCCESS,
+      .if_none_a = EXIT_SUCCESS,
+      .if_none_both = EXIT_FAILURE,
+      .if_none_b = EXIT_SUCCESS,
+    }, {
+      .op = "ge",
+      .if_lesser = EXIT_FAILURE,
+      .if_equal = EXIT_SUCCESS,
+      .if_greater = EXIT_SUCCESS,
+      .if_none_a = EXIT_FAILURE,
+      .if_none_both = EXIT_SUCCESS,
+      .if_none_b = EXIT_SUCCESS,
+    }, {
+      .op = "gt",
+      .if_lesser = EXIT_FAILURE,
+      .if_equal = EXIT_FAILURE,
+      .if_greater = EXIT_SUCCESS,
+      .if_none_a = EXIT_FAILURE,
+      .if_none_both = EXIT_FAILURE,
+      .if_none_b = EXIT_SUCCESS,
+    },
+
+    /* These treat an empty version as later than any version. */
+    {
+      .op = "le-nl",
+      .if_lesser = EXIT_SUCCESS,
+      .if_equal = EXIT_SUCCESS,
+      .if_greater = EXIT_FAILURE,
+      .if_none_a = EXIT_FAILURE,
+      .if_none_both = EXIT_SUCCESS,
+      .if_none_b = EXIT_SUCCESS,
+    }, {
+      .op = "lt-nl",
+      .if_lesser = EXIT_SUCCESS,
+      .if_equal = EXIT_FAILURE,
+      .if_greater = EXIT_FAILURE,
+      .if_none_a = EXIT_FAILURE,
+      .if_none_both = EXIT_FAILURE,
+      .if_none_b = EXIT_SUCCESS,
+    }, {
+      .op = "ge-nl",
+      .if_lesser = EXIT_FAILURE,
+      .if_equal = EXIT_SUCCESS,
+      .if_greater = EXIT_SUCCESS,
+      .if_none_a = EXIT_SUCCESS,
+      .if_none_both = EXIT_SUCCESS,
+      .if_none_b = EXIT_FAILURE,
+    }, {
+      .op = "gt-nl",
+      .if_lesser = EXIT_FAILURE,
+      .if_equal = EXIT_FAILURE,
+      .if_greater = EXIT_SUCCESS,
+      .if_none_a = EXIT_SUCCESS,
+      .if_none_both = EXIT_FAILURE,
+      .if_none_b = EXIT_FAILURE,
+    },
+
+    /* For compatibility with dpkg control file syntax. */
+    {
+      .op = "<",
+      .if_lesser = EXIT_SUCCESS,
+      .if_equal = EXIT_SUCCESS,
+      .if_greater = EXIT_FAILURE,
+      .if_none_a = EXIT_SUCCESS,
+      .if_none_both = EXIT_SUCCESS,
+      .if_none_b = EXIT_FAILURE,
+      .obsolete = true,
+    }, {
+      .op = "<=",
+      .if_lesser = EXIT_SUCCESS,
+      .if_equal = EXIT_SUCCESS,
+      .if_greater = EXIT_FAILURE,
+      .if_none_a = EXIT_SUCCESS,
+      .if_none_both = EXIT_SUCCESS,
+      .if_none_b = EXIT_FAILURE,
+    }, {
+      .op = "<<",
+      .if_lesser = EXIT_SUCCESS,
+      .if_equal = EXIT_FAILURE,
+      .if_greater = EXIT_FAILURE,
+      .if_none_a = EXIT_SUCCESS,
+      .if_none_both = EXIT_FAILURE,
+      .if_none_b = EXIT_FAILURE,
+    }, {
+      .op = "=",
+      .if_lesser = EXIT_FAILURE,
+      .if_equal = EXIT_SUCCESS,
+      .if_greater = EXIT_FAILURE,
+      .if_none_a = EXIT_FAILURE,
+      .if_none_both = EXIT_SUCCESS,
+      .if_none_b = EXIT_FAILURE,
+    }, {
+      .op = ">",
+      .if_lesser = EXIT_FAILURE,
+      .if_equal = EXIT_SUCCESS,
+      .if_greater = EXIT_SUCCESS,
+      .if_none_a = EXIT_FAILURE,
+      .if_none_both = EXIT_SUCCESS,
+      .if_none_b = EXIT_SUCCESS,
+      .obsolete = true,
+    }, {
+      .op = ">=",
+      .if_lesser = EXIT_FAILURE,
+      .if_equal = EXIT_SUCCESS,
+      .if_greater = EXIT_SUCCESS,
+      .if_none_a = EXIT_FAILURE,
+      .if_none_both = EXIT_SUCCESS,
+      .if_none_b = EXIT_SUCCESS,
+    }, {
+      .op = ">>",
+      .if_lesser = EXIT_FAILURE,
+      .if_equal = EXIT_FAILURE,
+      .if_greater = EXIT_SUCCESS,
+      .if_none_a = EXIT_FAILURE,
+      .if_none_both = EXIT_FAILURE,
+      .if_none_b = EXIT_SUCCESS,
+    }, {
+      .op = NULL,
+    }
+  };
+
+  const struct relationinfo *rip;
+  struct dpkg_version a, b;
+  struct dpkg_error err;
+  int rc;
+
+  if (!argv[0] || !argv[1] || !argv[2] || argv[3])
+    badusage(_("--compare-versions takes three arguments:"
+             " <version> <relation> <version>"));
+
+  for (rip = relationinfos; rip->op && strcmp(rip->op, argv[1]); rip++)
+    ;
+
+  if (!rip->op)
+    badusage(_("--compare-versions bad relation"));
+
+  if (rip->obsolete)
+    warning(_("--%s used with obsolete relation operator '%s'"),
+            cipaction->olong, rip->op);
+
+  if (*argv[0] && strcmp(argv[0],"<unknown>")) {
+    if (parseversion(&a, argv[0], &err) < 0) {
+      dpkg_error_print(&err, _("version '%s' has bad syntax"), argv[0]);
+      dpkg_error_destroy(&err);
+    }
+  } else {
+    dpkg_version_blank(&a);
+  }
+  if (*argv[2] && strcmp(argv[2],"<unknown>")) {
+    if (parseversion(&b, argv[2], &err) < 0) {
+      dpkg_error_print(&err, _("version '%s' has bad syntax"), argv[2]);
+      dpkg_error_destroy(&err);
+    }
+  } else {
+    dpkg_version_blank(&b);
+  }
+  if (!dpkg_version_is_informative(&a)) {
+    if (dpkg_version_is_informative(&b))
+      return rip->if_none_a;
+    else
+      return rip->if_none_both;
+  } else if (!dpkg_version_is_informative(&b)) {
+    return rip->if_none_b;
+  }
+  rc = dpkg_version_compare(&a, &b);
+  debug(dbg_general, "cmpversions a='%s' b='%s' r=%d",
+        versiondescribe_c(&a,vdew_always),
+        versiondescribe_c(&b,vdew_always),
+        rc);
+  if (rc > 0)
+    return rip->if_greater;
+  else if (rc < 0)
+    return rip->if_lesser;
+  else
+    return rip->if_equal;
+}
diff --git a/src/main/errors.c b/src/main/errors.c
new file mode 100644
index 0000000..50d4155
--- /dev/null
+++ b/src/main/errors.c
@@ -0,0 +1,137 @@
+/*
+ * dpkg - main program for package management
+ * errors.c - per package error handling
+ *
+ * Copyright © 1994,1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2007-2014 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+
+#include <errno.h>
+#include <limits.h>
+#include <string.h>
+#include <dirent.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/options.h>
+
+#include "main.h"
+
+bool abort_processing = false;
+
+static int nerrs = 0;
+
+struct error_report {
+  struct error_report *next;
+  char *what;
+};
+
+static struct error_report *reports = NULL;
+static struct error_report **lastreport= &reports;
+static struct error_report emergency;
+
+static void
+enqueue_error_report(const char *arg)
+{
+  struct error_report *nr;
+
+  nr = malloc(sizeof(*nr));
+  if (!nr) {
+    notice(_("failed to allocate memory for new entry in list of failed packages: %s"),
+           strerror(errno));
+    abort_processing = true;
+    nr= &emergency;
+  }
+  nr->what = m_strdup(arg);
+  nr->next = NULL;
+  *lastreport= nr;
+  lastreport= &nr->next;
+
+  if (++nerrs < errabort)
+    return;
+  notice(_("too many errors, stopping"));
+  abort_processing = true;
+}
+
+void
+print_error_perpackage(const char *emsg, const void *data)
+{
+  const char *pkgname = data;
+
+  notice(_("error processing package %s (--%s):\n %s"),
+         pkgname, cipaction->olong, emsg);
+
+  statusfd_send("status: %s : %s : %s", pkgname, "error", emsg);
+
+  enqueue_error_report(pkgname);
+}
+
+void
+print_error_perarchive(const char *emsg, const void *data)
+{
+  const char *filename = data;
+
+  notice(_("error processing archive %s (--%s):\n %s"),
+         filename, cipaction->olong, emsg);
+
+  statusfd_send("status: %s : %s : %s", filename, "error", emsg);
+
+  enqueue_error_report(filename);
+}
+
+int
+reportbroken_retexitstatus(int ret)
+{
+  if (reports) {
+    fputs(_("Errors were encountered while processing:\n"),stderr);
+    while (reports) {
+      fprintf(stderr," %s\n",reports->what);
+      free(reports->what);
+      reports= reports->next;
+    }
+  }
+  if (abort_processing) {
+    fputs(_("Processing was halted because there were too many errors.\n"),stderr);
+  }
+  return nerrs ? 1 : ret;
+}
+
+bool
+skip_due_to_hold(struct pkginfo *pkg)
+{
+  if (pkg->want != PKG_WANT_HOLD)
+    return false;
+  if (in_force(FORCE_HOLD)) {
+    notice(_("package %s was on hold, processing it anyway as you requested"),
+           pkg_name(pkg, pnaw_nonambig));
+    return false;
+  }
+  printf(_("Package %s is on hold, not touching it.  Use --force-hold to override.\n"),
+         pkg_name(pkg, pnaw_nonambig));
+  return true;
+}
+
diff --git a/src/main/file-match.c b/src/main/file-match.c
new file mode 100644
index 0000000..51bdb0d
--- /dev/null
+++ b/src/main/file-match.c
@@ -0,0 +1,49 @@
+/*
+ * dpkg - main program for package management
+ * file-match.c - file name/type match tracking functions
+ *
+ * Copyright © 2011 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <stdlib.h>
+
+#include <dpkg/dpkg.h>
+
+#include "file-match.h"
+
+struct match_node *
+match_node_new(const char *name, const char *type, struct match_node *next)
+{
+	struct match_node *node;
+
+	node = m_malloc(sizeof(*node));
+	node->next = next;
+	node->filename = m_strdup(name);
+	node->filetype = m_strdup(type);
+
+	return node;
+}
+
+void
+match_node_free(struct match_node *node)
+{
+	free(node->filetype);
+	free(node->filename);
+	free(node);
+}
diff --git a/src/main/file-match.h b/src/main/file-match.h
new file mode 100644
index 0000000..db7a40b
--- /dev/null
+++ b/src/main/file-match.h
@@ -0,0 +1,35 @@
+/*
+ * dpkg - main program for package management
+ * file-match.h - file name/type match tracking functions
+ *
+ * Copyright © 2011 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef DPKG_FILE_MATCH_H
+#define DPKG_FILE_MATCH_H
+
+struct match_node {
+	struct match_node *next;
+	char *filetype;
+	char *filename;
+};
+
+struct match_node *
+match_node_new(const char *name, const char *type, struct match_node *next);
+void
+match_node_free(struct match_node *node);
+
+#endif /* DPKG_FILE_MATCH_H */
diff --git a/src/main/filters.c b/src/main/filters.c
new file mode 100644
index 0000000..f770fb7
--- /dev/null
+++ b/src/main/filters.c
@@ -0,0 +1,133 @@
+/*
+ * dpkg - main program for package management
+ * filters.c - filtering routines for excluding bits of packages
+ *
+ * Copyright © 2007, 2008 Tollef Fog Heen <tfheen@err.no>
+ * Copyright © 2008, 2010, 2012-2014 Guillem Jover <guillem@debian.org>
+ * Copyright © 2010 Canonical Ltd.
+ *   written by Martin Pitt <martin.pitt@canonical.com>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <fnmatch.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/db-fsys.h>
+
+#include "main.h"
+#include "filters.h"
+
+struct filter_node {
+	struct filter_node *next;
+	char *pattern;
+	bool include;
+};
+
+static struct filter_node *filter_head = NULL;
+static struct filter_node **filter_tail = &filter_head;
+
+void
+filter_add(const char *pattern, bool include)
+{
+	struct filter_node *filter;
+
+	debug(dbg_general, "adding %s filter for '%s'",
+	      include ? "include" : "exclude", pattern);
+
+	filter = m_malloc(sizeof(*filter));
+	filter->pattern = m_strdup(pattern);
+	filter->include = include;
+	filter->next = NULL;
+
+	*filter_tail = filter;
+	filter_tail = &filter->next;
+}
+
+bool
+filter_should_skip(struct tar_entry *ti)
+{
+	struct filter_node *f;
+	bool skip = false;
+
+	if (!filter_head)
+		return false;
+
+	/* Last match wins. */
+	for (f = filter_head; f != NULL; f = f->next) {
+		debug(dbg_eachfile, "filter comparing '%s' and '%s'",
+		      &ti->name[1], f->pattern);
+
+		if (fnmatch(f->pattern, &ti->name[1], 0) == 0) {
+			if (f->include) {
+				skip = false;
+				debug(dbg_eachfile, "filter including %s",
+				      ti->name);
+			} else {
+				skip = true;
+				debug(dbg_eachfile, "filter removing %s",
+				      ti->name);
+			}
+		}
+	}
+
+	/* We need to keep directories (or symlinks to directories) if a
+	 * glob excludes them, but a more specific include glob brings back
+	 * files; XXX the current implementation will probably include more
+	 * directories than necessary, but better err on the side of caution
+	 * than failing with “no such file or directory” (which would leave
+	 * the package in a very bad state). */
+	if (skip && (ti->type == TAR_FILETYPE_DIR ||
+	             ti->type == TAR_FILETYPE_SYMLINK)) {
+		debug(dbg_eachfile,
+		      "filter seeing if '%s' needs to be reincluded",
+		      &ti->name[1]);
+
+		for (f = filter_head; f != NULL; f = f->next) {
+			const char *wildcard;
+			int path_len;
+
+			if (!f->include)
+				continue;
+
+			/* Calculate the offset of the first wildcard
+			 * character in the pattern. */
+			wildcard = strpbrk(f->pattern, "*?[\\");
+			if (wildcard)
+				path_len = wildcard - f->pattern;
+			else
+				path_len = strlen(f->pattern);
+
+			/* Ignore any trailing slash for the comparison. */
+			while (path_len && f->pattern[path_len - 1] == '/')
+				path_len--;
+
+			debug(dbg_eachfiledetail,
+			      "filter subpattern '%.*s'", path_len, f->pattern);
+
+			if (strncmp(&ti->name[1], f->pattern, path_len) == 0) {
+				debug(dbg_eachfile, "filter reincluding %s",
+				      ti->name);
+				return false;
+			}
+		}
+	}
+
+	return skip;
+}
diff --git a/src/main/filters.h b/src/main/filters.h
new file mode 100644
index 0000000..b878e7e
--- /dev/null
+++ b/src/main/filters.h
@@ -0,0 +1,37 @@
+/*
+ * dpkg - main program for package management
+ * filters.h - external definitions for filter handling
+ *
+ * Copyright © 2007, 2008 Tollef Fog Heen <tfheen@err.no>
+ * Copyright © 2008, 2010 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef DPKG_FILTERS_H
+#define DPKG_FILTERS_H
+
+#include <stdbool.h>
+
+#include <dpkg/macros.h>
+#include <dpkg/tarfn.h>
+
+DPKG_BEGIN_DECLS
+
+void filter_add(const char *glob, bool include);
+bool filter_should_skip(struct tar_entry *ti);
+
+DPKG_END_DECLS
+
+#endif
diff --git a/src/main/help.c b/src/main/help.c
new file mode 100644
index 0000000..59e730e
--- /dev/null
+++ b/src/main/help.c
@@ -0,0 +1,325 @@
+/*
+ * dpkg - main program for package management
+ * help.c - various helper routines
+ *
+ * Copyright © 1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2007-2015 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/path.h>
+#include <dpkg/file.h>
+#include <dpkg/command.h>
+#include <dpkg/db-fsys.h>
+
+#include "main.h"
+
+const char *const statusstrings[]= {
+  [PKG_STAT_NOTINSTALLED]    = N_("not installed"),
+  [PKG_STAT_CONFIGFILES]     = N_("not installed but configs remain"),
+  [PKG_STAT_HALFINSTALLED]   = N_("broken due to failed removal or installation"),
+  [PKG_STAT_UNPACKED]        = N_("unpacked but not configured"),
+  [PKG_STAT_HALFCONFIGURED]  = N_("broken due to postinst failure"),
+  [PKG_STAT_TRIGGERSAWAITED] = N_("awaiting trigger processing by another package"),
+  [PKG_STAT_TRIGGERSPENDING] = N_("triggered"),
+  [PKG_STAT_INSTALLED]       = N_("installed")
+};
+
+struct fsys_namenode *
+namenodetouse(struct fsys_namenode *namenode, struct pkginfo *pkg,
+              struct pkgbin *pkgbin)
+{
+  struct fsys_namenode *fnn;
+
+  if (!namenode->divert)
+    return namenode;
+
+  debug(dbg_eachfile, "namenodetouse namenode='%s' pkg=%s",
+        namenode->name, pkgbin_name(pkg, pkgbin, pnaw_always));
+
+  fnn = (namenode->divert->useinstead && namenode->divert->pkgset != pkg->set)
+        ? namenode->divert->useinstead : namenode;
+
+  debug(dbg_eachfile,
+        "namenodetouse ... useinstead=%s camefrom=%s pkg=%s return %s",
+        namenode->divert->useinstead ? namenode->divert->useinstead->name : "<none>",
+        namenode->divert->camefrom ? namenode->divert->camefrom->name : "<none>",
+        namenode->divert->pkgset ? namenode->divert->pkgset->name : "<none>",
+        fnn->name);
+
+  return fnn;
+}
+
+/**
+ * Verify that some programs can be found in the PATH.
+ */
+void checkpath(void) {
+  static const char *const prog_list[] = {
+    DPKG_DEFAULT_SHELL,
+    RM,
+    TAR,
+    DIFF,
+    BACKEND,
+    /* macOS uses dyld (Mach-O) instead of ld.so (ELF), and does not have
+     * an ldconfig. */
+#if defined(__APPLE__) && defined(__MACH__)
+    "update_dyld_shared_cache",
+#elif defined(__GLIBC__) || defined(__UCLIBC__) || \
+      defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__)
+    "ldconfig",
+#endif
+#if BUILD_START_STOP_DAEMON
+    "start-stop-daemon",
+#endif
+    NULL
+  };
+
+  const char *const *prog;
+  int warned= 0;
+
+  for (prog = prog_list; *prog; prog++) {
+    if (!command_in_path(*prog)) {
+      warning(_("'%s' not found in PATH or not executable"), *prog);
+      warned++;
+    }
+  }
+
+  if (warned)
+    forcibleerr(FORCE_BAD_PATH,
+                P_("%d expected program not found in PATH or not executable\n%s",
+                   "%d expected programs not found in PATH or not executable\n%s",
+                   warned),
+                warned, _("Note: root's PATH should usually contain "
+                          "/usr/local/sbin, /usr/sbin and /sbin"));
+}
+
+bool
+ignore_depends(const struct pkginfo *pkg)
+{
+  struct pkg_list *id;
+  for (id= ignoredependss; id; id= id->next)
+    if (id->pkg == pkg)
+      return true;
+  return false;
+}
+
+static bool
+ignore_depends_possi(struct deppossi *possi)
+{
+  struct deppossi_pkg_iterator *possi_iter;
+  struct pkginfo *pkg;
+
+  possi_iter = deppossi_pkg_iter_new(possi, wpb_installed);
+  while ((pkg = deppossi_pkg_iter_next(possi_iter))) {
+    if (ignore_depends(pkg)) {
+      deppossi_pkg_iter_free(possi_iter);
+      return true;
+    }
+  }
+  deppossi_pkg_iter_free(possi_iter);
+
+  return false;
+}
+
+bool
+force_depends(struct deppossi *possi)
+{
+  return in_force(FORCE_DEPENDS) ||
+         ignore_depends_possi(possi) ||
+         ignore_depends(possi->up->up);
+}
+
+bool
+force_breaks(struct deppossi *possi)
+{
+  return in_force(FORCE_BREAKS) ||
+         ignore_depends_possi(possi) ||
+         ignore_depends(possi->up->up);
+}
+
+bool
+force_conflicts(struct deppossi *possi)
+{
+  return in_force(FORCE_CONFLICTS);
+}
+
+void clear_istobes(void) {
+  struct pkg_hash_iter *iter;
+  struct pkginfo *pkg;
+
+  iter = pkg_hash_iter_new();
+  while ((pkg = pkg_hash_iter_next_pkg(iter)) != NULL) {
+    ensure_package_clientdata(pkg);
+    pkg->clientdata->istobe = PKG_ISTOBE_NORMAL;
+    pkg->clientdata->replacingfilesandsaid= 0;
+  }
+  pkg_hash_iter_free(iter);
+}
+
+/*
+ * Returns true if the directory contains conffiles belonging to pkg,
+ * false otherwise.
+ */
+bool
+dir_has_conffiles(struct fsys_namenode *file, struct pkginfo *pkg)
+{
+  struct conffile *conff;
+  size_t namelen;
+
+  debug(dbg_veryverbose, "dir_has_conffiles '%s' (from %s)", file->name,
+        pkg_name(pkg, pnaw_always));
+  namelen = strlen(file->name);
+  for (conff= pkg->installed.conffiles; conff; conff= conff->next) {
+      if (conff->obsolete || conff->remove_on_upgrade)
+        continue;
+      if (strncmp(file->name, conff->name, namelen) == 0 &&
+          strlen(conff->name) > namelen && conff->name[namelen] == '/') {
+	debug(dbg_veryverbose, "directory %s has conffile %s from %s",
+	      file->name, conff->name, pkg_name(pkg, pnaw_always));
+	return true;
+      }
+  }
+  debug(dbg_veryverbose, "dir_has_conffiles no");
+  return false;
+}
+
+/*
+ * Returns true if the file is used by packages other than pkg,
+ * false otherwise.
+ */
+bool
+dir_is_used_by_others(struct fsys_namenode *file, struct pkginfo *pkg)
+{
+  struct fsys_node_pkgs_iter *iter;
+  struct pkginfo *other_pkg;
+
+  debug(dbg_veryverbose, "dir_is_used_by_others '%s' (except %s)", file->name,
+        pkg ? pkg_name(pkg, pnaw_always) : "<none>");
+
+  iter = fsys_node_pkgs_iter_new(file);
+  while ((other_pkg = fsys_node_pkgs_iter_next(iter))) {
+    debug(dbg_veryverbose, "dir_is_used_by_others considering %s ...",
+          pkg_name(other_pkg, pnaw_always));
+    if (other_pkg == pkg)
+      continue;
+
+    fsys_node_pkgs_iter_free(iter);
+    debug(dbg_veryverbose, "dir_is_used_by_others yes");
+    return true;
+  }
+  fsys_node_pkgs_iter_free(iter);
+
+  debug(dbg_veryverbose, "dir_is_used_by_others no");
+  return false;
+}
+
+/*
+ * Returns true if the file is used by pkg, false otherwise.
+ */
+bool
+dir_is_used_by_pkg(struct fsys_namenode *file, struct pkginfo *pkg,
+                   struct fsys_namenode_list *list)
+{
+  struct fsys_namenode_list *node;
+  size_t namelen;
+
+  debug(dbg_veryverbose, "dir_is_used_by_pkg '%s' (by %s)",
+        file->name, pkg ? pkg_name(pkg, pnaw_always) : "<none>");
+
+  namelen = strlen(file->name);
+
+  for (node = list; node; node = node->next) {
+    debug(dbg_veryverbose, "dir_is_used_by_pkg considering %s ...",
+          node->namenode->name);
+
+    if (strncmp(file->name, node->namenode->name, namelen) == 0 &&
+        strlen(node->namenode->name) > namelen &&
+        node->namenode->name[namelen] == '/') {
+      debug(dbg_veryverbose, "dir_is_used_by_pkg yes");
+      return true;
+    }
+  }
+
+  debug(dbg_veryverbose, "dir_is_used_by_pkg no");
+
+  return false;
+}
+
+/**
+ * Mark a conffile as obsolete.
+ *
+ * @param pkg		The package owning the conffile.
+ * @param namenode	The namenode for the obsolete conffile.
+ */
+void
+conffile_mark_obsolete(struct pkginfo *pkg, struct fsys_namenode *namenode)
+{
+  struct conffile *conff;
+
+  for (conff = pkg->installed.conffiles; conff; conff = conff->next) {
+    if (strcmp(conff->name, namenode->name) == 0) {
+      debug(dbg_conff, "marking %s conffile %s as obsolete",
+            pkg_name(pkg, pnaw_always), conff->name);
+      conff->obsolete = true;
+      return;
+    }
+  }
+}
+
+/**
+ * Mark all package conffiles as old.
+ *
+ * @param pkg		The package owning the conffiles.
+ */
+void
+pkg_conffiles_mark_old(struct pkginfo *pkg)
+{
+  const struct conffile *conff;
+
+  for (conff = pkg->installed.conffiles; conff; conff = conff->next) {
+    struct fsys_namenode *namenode;
+
+    namenode = fsys_hash_find_node(conff->name, FHFF_NONE); /* XXX */
+    namenode->flags |= FNNF_OLD_CONFF;
+    if (!namenode->oldhash)
+      namenode->oldhash = conff->hash;
+    debug(dbg_conffdetail, "%s '%s' namenode '%s' flags %o", __func__,
+          conff->name, namenode->name, namenode->flags);
+  }
+}
+
+void
+log_action(const char *action, struct pkginfo *pkg, struct pkgbin *pkgbin)
+{
+  log_message("%s %s %s %s", action, pkgbin_name(pkg, pkgbin, pnaw_always),
+              versiondescribe_c(&pkg->installed.version, vdew_nonambig),
+              versiondescribe_c(&pkg->available.version, vdew_nonambig));
+  statusfd_send("processing: %s: %s", action,
+                pkgbin_name(pkg, pkgbin, pnaw_nonambig));
+}
diff --git a/src/main/main.c b/src/main/main.c
new file mode 100644
index 0000000..02887c2
--- /dev/null
+++ b/src/main/main.c
@@ -0,0 +1,781 @@
+/*
+ * dpkg - main program for package management
+ * main.c - main program
+ *
+ * Copyright © 1994,1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2006-2016 Guillem Jover <guillem@debian.org>
+ * Copyright © 2010 Canonical Ltd.
+ *   written by Martin Pitt <martin.pitt@canonical.com>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include <errno.h>
+#include <limits.h>
+#if HAVE_LOCALE_H
+#include <locale.h>
+#endif
+#include <string.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <unistd.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <dpkg/macros.h>
+#include <dpkg/i18n.h>
+#include <dpkg/c-ctype.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/arch.h>
+#include <dpkg/subproc.h>
+#include <dpkg/command.h>
+#include <dpkg/pager.h>
+#include <dpkg/options.h>
+#include <dpkg/db-fsys.h>
+
+#include "main.h"
+#include "filters.h"
+
+static int
+printversion(const char *const *argv)
+{
+  if (f_robot) {
+    printf("%s", PACKAGE_VERSION);
+  } else {
+    printf(_("Debian '%s' package management program version %s.\n"),
+           DPKG, PACKAGE_RELEASE);
+    printf(_(
+"This is free software; see the GNU General Public License version 2 or\n"
+"later for copying conditions. There is NO warranty.\n"));
+  }
+
+  m_output(stdout, _("<standard output>"));
+
+  return 0;
+}
+
+/*
+ * FIXME: Options that need fixing:
+ * dpkg --command-fd
+ */
+
+static int
+usage(const char *const *argv)
+{
+  printf(_(
+"Usage: %s [<option>...] <command>\n"
+"\n"), DPKG);
+
+  printf(_(
+"Commands:\n"
+"  -i|--install       <.deb file name>... | -R|--recursive <directory>...\n"
+"  --unpack           <.deb file name>... | -R|--recursive <directory>...\n"
+"  -A|--record-avail  <.deb file name>... | -R|--recursive <directory>...\n"
+"  --configure        <package>... | -a|--pending\n"
+"  --triggers-only    <package>... | -a|--pending\n"
+"  -r|--remove        <package>... | -a|--pending\n"
+"  -P|--purge         <package>... | -a|--pending\n"
+"  -V|--verify [<package>...]       Verify the integrity of package(s).\n"
+"  --get-selections [<pattern>...]  Get list of selections to stdout.\n"
+"  --set-selections                 Set package selections from stdin.\n"
+"  --clear-selections               Deselect every non-essential package.\n"
+"  --update-avail [<Packages-file>] Replace available packages info.\n"
+"  --merge-avail [<Packages-file>]  Merge with info from file.\n"
+"  --clear-avail                    Erase existing available info.\n"
+"  --forget-old-unavail             Forget uninstalled unavailable pkgs.\n"
+"  -s|--status [<package>...]       Display package status details.\n"
+"  -p|--print-avail [<package>...]  Display available version details.\n"
+"  -L|--listfiles <package>...      List files 'owned' by package(s).\n"
+"  -l|--list [<pattern>...]         List packages concisely.\n"
+"  -S|--search <pattern>...         Find package(s) owning file(s).\n"
+"  -C|--audit [<package>...]        Check for broken package(s).\n"
+"  --yet-to-unpack                  Print packages selected for installation.\n"
+"  --predep-package                 Print pre-dependencies to unpack.\n"
+"  --add-architecture <arch>        Add <arch> to the list of architectures.\n"
+"  --remove-architecture <arch>     Remove <arch> from the list of architectures.\n"
+"  --print-architecture             Print dpkg architecture.\n"
+"  --print-foreign-architectures    Print allowed foreign architectures.\n"
+"  --assert-help                    Show help on assertions.\n"
+"  --assert-<feature>               Assert support for the specified feature.\n"
+"  --validate-<thing> <string>      Validate a <thing>'s <string>.\n"
+"  --compare-versions <a> <op> <b>  Compare version numbers - see below.\n"
+"  --force-help                     Show help on forcing.\n"
+"  -Dh|--debug=help                 Show help on debugging.\n"
+"\n"));
+
+  printf(_(
+"  -?, --help                       Show this help message.\n"
+"      --version                    Show the version.\n"
+"\n"));
+
+  printf(_(
+"Validatable things: pkgname, archname, trigname, version.\n"
+"\n"));
+
+  printf(_(
+"Use dpkg with -b, --build, -c, --contents, -e, --control, -I, --info,\n"
+"  -f, --field, -x, --extract, -X, --vextract, --ctrl-tarfile, --fsys-tarfile\n"
+"on archives (type %s --help).\n"
+"\n"), BACKEND);
+
+  printf(_(
+"Options:\n"
+"  --admindir=<directory>     Use <directory> instead of %s.\n"
+"  --root=<directory>         Install on a different root directory.\n"
+"  --instdir=<directory>      Change installation dir without changing admin dir.\n"
+"  --pre-invoke=<command>     Set a pre-invoke hook.\n"
+"  --post-invoke=<command>    Set a post-invoke hook.\n"
+"  --path-exclude=<pattern>   Do not install paths which match a shell pattern.\n"
+"  --path-include=<pattern>   Re-include a pattern after a previous exclusion.\n"
+"  -O|--selected-only         Skip packages not selected for install/upgrade.\n"
+"  -E|--skip-same-version     Skip packages with same installed version/arch.\n"
+"  -G|--refuse-downgrade      Skip packages with earlier version than installed.\n"
+"  -B|--auto-deconfigure      Install even if it would break some other package.\n"
+"  --[no-]triggers            Skip or force consequential trigger processing.\n"
+"  --verify-format=<format>   Verify output format (supported: 'rpm').\n"
+"  --no-pager                 Disables the use of any pager.\n"
+"  --no-debsig                Do not try to verify package signatures.\n"
+"  --no-act|--dry-run|--simulate\n"
+"                             Just say what we would do - don't do it.\n"
+"  -D|--debug=<octal>         Enable debugging (see -Dhelp or --debug=help).\n"
+"  --status-fd <n>            Send status change updates to file descriptor <n>.\n"
+"  --status-logger=<command>  Send status change updates to <command>'s stdin.\n"
+"  --log=<filename>           Log status changes and actions to <filename>.\n"
+"  --ignore-depends=<package>[,...]\n"
+"                             Ignore dependencies involving <package>.\n"
+"  --force-<thing>[,...]      Override problems (see --force-help).\n"
+"  --no-force-<thing>[,...]   Stop when problems encountered.\n"
+"  --refuse-<thing>[,...]     Ditto.\n"
+"  --abort-after <n>          Abort after encountering <n> errors.\n"
+"  --robot                    Use machine-readable output on some commands.\n"
+"\n"), ADMINDIR);
+
+  printf(_(
+"Comparison operators for --compare-versions are:\n"
+"  lt le eq ne ge gt       (treat empty version as earlier than any version);\n"
+"  lt-nl le-nl ge-nl gt-nl (treat empty version as later than any version);\n"
+"  < << <= = >= >> >       (only for compatibility with control file syntax).\n"
+"\n"));
+
+  printf(_(
+"Use 'apt' or 'aptitude' for user-friendly package management.\n"));
+
+  m_output(stdout, _("<standard output>"));
+
+  return 0;
+}
+
+static const char printforhelp[] = N_(
+"Type dpkg --help for help about installing and deinstalling packages [*];\n"
+"Use 'apt' or 'aptitude' for user-friendly package management;\n"
+"Type dpkg -Dhelp for a list of dpkg debug flag values;\n"
+"Type dpkg --force-help for a list of forcing options;\n"
+"Type dpkg-deb --help for help about manipulating *.deb files;\n"
+"\n"
+"Options marked [*] produce a lot of output - pipe it through 'less' or 'more' !");
+
+int f_robot = 0;
+int f_pending=0, f_recursive=0, f_alsoselect=1, f_skipsame=0, f_noact=0;
+int f_autodeconf=0, f_nodebsig=0;
+int f_triggers = 0;
+
+int errabort = 50;
+struct pkg_list *ignoredependss = NULL;
+
+#define DBG_DEF(n, d) \
+  { .flag = dbg_##n, .name = #n, .desc = d }
+
+static const struct debuginfo {
+  int flag;
+  const char *name;
+  const char *desc;
+} debuginfos[] = {
+  DBG_DEF(general,         N_("Generally helpful progress information")),
+  DBG_DEF(scripts,         N_("Invocation and status of maintainer scripts")),
+  DBG_DEF(eachfile,        N_("Output for each file processed")),
+  DBG_DEF(eachfiledetail,  N_("Lots of output for each file processed")),
+  DBG_DEF(conff,           N_("Output for each configuration file")),
+  DBG_DEF(conffdetail,     N_("Lots of output for each configuration file")),
+  DBG_DEF(depcon,          N_("Dependencies and conflicts")),
+  DBG_DEF(depcondetail,    N_("Lots of dependencies/conflicts output")),
+  DBG_DEF(triggers,        N_("Trigger activation and processing")),
+  DBG_DEF(triggersdetail,  N_("Lots of output regarding triggers")),
+  DBG_DEF(triggersstupid,  N_("Silly amounts of output regarding triggers")),
+  DBG_DEF(veryverbose,     N_("Lots of drivel about eg the dpkg/info directory")),
+  DBG_DEF(stupidlyverbose, N_("Insane amounts of drivel")),
+  { 0, NULL, NULL }
+};
+
+static void
+set_debug(const struct cmdinfo *cpi, const char *value)
+{
+  long mask;
+
+  if (*value == 'h') {
+    const struct debuginfo *dip;
+
+    printf(_(
+"%s debugging option, --debug=<octal> or -D<octal>:\n"
+"\n"
+" Number  Ref. in source   Description\n"), DPKG);
+
+    for (dip = debuginfos; dip->name; dip++)
+      printf(" %6o  %-16s %s\n", dip->flag, dip->name, gettext(dip->desc));
+
+    printf(_("\n"
+"Debugging options can be mixed using bitwise-or.\n"
+"Note that the meanings and values are subject to change.\n"));
+    m_output(stdout, _("<standard output>"));
+    exit(0);
+  }
+
+  mask = debug_parse_mask(value);
+  if (mask < 0)
+    badusage(_("--%s requires a positive octal argument"), cpi->olong);
+}
+
+static void
+set_no_pager(const struct cmdinfo *ci, const char *value)
+{
+  pager_enable(false);
+
+  /* Let's communicate this to our backends. */
+  setenv("DPKG_PAGER", "cat", 1);
+}
+
+static void
+set_filter(const struct cmdinfo *cip, const char *value)
+{
+  filter_add(value, cip->arg_int);
+}
+
+static void
+set_verify_format(const struct cmdinfo *cip, const char *value)
+{
+  if (!verify_set_output(value))
+    badusage(_("unknown verify output format '%s'"), value);
+}
+
+static void
+set_ignore_depends(const struct cmdinfo *cip, const char *value)
+{
+  char *copy, *p;
+
+  copy= m_malloc(strlen(value)+2);
+  strcpy(copy,value);
+  copy[strlen(value) + 1] = '\0';
+  for (p=copy; *p; p++) {
+    if (*p != ',') continue;
+    *p++ = '\0';
+    if (!*p || *p==',' || p==copy+1)
+      badusage(_("null package name in --%s comma-separated list '%.250s'"),
+               cip->olong, value);
+  }
+  p= copy;
+  while (*p) {
+    struct pkginfo *pkg;
+
+    pkg = dpkg_options_parse_pkgname(cip, p);
+    pkg_list_prepend(&ignoredependss, pkg);
+
+    p+= strlen(p)+1;
+  }
+
+  free(copy);
+}
+
+static void
+set_integer(const struct cmdinfo *cip, const char *value)
+{
+  *cip->iassignto = dpkg_options_parse_arg_int(cip, value);
+}
+
+static void
+set_pipe(const struct cmdinfo *cip, const char *value)
+{
+  long v;
+
+  v = dpkg_options_parse_arg_int(cip, value);
+
+  statusfd_add(v);
+}
+
+static bool
+is_invoke_action(enum action action)
+{
+  switch (action) {
+  case act_unpack:
+  case act_configure:
+  case act_install:
+  case act_triggers:
+  case act_remove:
+  case act_purge:
+  case act_arch_add:
+  case act_arch_remove:
+    return true;
+  default:
+    return false;
+  }
+}
+
+static struct invoke_list pre_invoke_hooks = {
+  .head = NULL,
+  .tail = &pre_invoke_hooks.head,
+};
+static struct invoke_list post_invoke_hooks = {
+  .head = NULL,
+  .tail = &post_invoke_hooks.head,
+};
+static struct invoke_list status_loggers = {
+  .head = NULL,
+  .tail = &status_loggers.head,
+};
+
+static void
+set_invoke_hook(const struct cmdinfo *cip, const char *value)
+{
+  struct invoke_list *hook_list = cip->arg_ptr;
+  struct invoke_hook *hook_new;
+
+  hook_new = m_malloc(sizeof(*hook_new));
+  hook_new->command = m_strdup(value);
+  hook_new->next = NULL;
+
+  /* Add the new hook at the tail of the list to preserve the order. */
+  *hook_list->tail = hook_new;
+  hook_list->tail = &hook_new->next;
+}
+
+static void
+run_invoke_hooks(const char *action, struct invoke_list *hook_list)
+{
+  struct invoke_hook *hook;
+
+  setenv("DPKG_HOOK_ACTION", action, 1);
+
+  for (hook = hook_list->head; hook; hook = hook->next) {
+    int status;
+
+    /* XXX: As an optimization, use exec instead if no shell metachar are
+     * used “!$=&|\\`'"^~;<>{}[]()?*#”. */
+    status = system(hook->command);
+    if (status != 0)
+      ohshit(_("error executing hook '%s', exit code %d"), hook->command,
+             status);
+  }
+
+  unsetenv("DPKG_HOOK_ACTION");
+}
+
+static void
+free_invoke_hooks(struct invoke_list *hook_list)
+{
+  struct invoke_hook *hook, *hook_next;
+
+  for (hook = hook_list->head; hook; hook = hook_next) {
+    hook_next = hook->next;
+    free(hook->command);
+    free(hook);
+  }
+}
+
+static int
+run_logger(struct invoke_hook *hook, const char *name)
+{
+  pid_t pid;
+  int p[2];
+
+  m_pipe(p);
+
+  pid = subproc_fork();
+  if (pid == 0) {
+    /* Setup stdin and stdout. */
+    m_dup2(p[0], 0);
+    close(1);
+
+    close(p[0]);
+    close(p[1]);
+
+    command_shell(hook->command, name);
+  }
+  close(p[0]);
+
+  return p[1];
+}
+
+static void
+run_status_loggers(struct invoke_list *hook_list)
+{
+  struct invoke_hook *hook;
+
+  for (hook = hook_list->head; hook; hook = hook->next) {
+    int fd;
+
+    fd = run_logger(hook, _("status logger"));
+    statusfd_add(fd);
+  }
+}
+
+static int
+arch_add(const char *const *argv)
+{
+  struct dpkg_arch *arch;
+  const char *archname = *argv++;
+
+  if (archname == NULL || *argv)
+    badusage(_("--%s takes exactly one argument"), cipaction->olong);
+
+  dpkg_arch_load_list();
+
+  arch = dpkg_arch_add(archname);
+  switch (arch->type) {
+  case DPKG_ARCH_NATIVE:
+  case DPKG_ARCH_FOREIGN:
+    break;
+  case DPKG_ARCH_ILLEGAL:
+    ohshit(_("architecture '%s' is illegal: %s"), archname,
+           dpkg_arch_name_is_illegal(archname));
+  default:
+    ohshit(_("architecture '%s' is reserved and cannot be added"), archname);
+  }
+
+  dpkg_arch_save_list();
+
+  return 0;
+}
+
+static int
+arch_remove(const char *const *argv)
+{
+  const char *archname = *argv++;
+  struct dpkg_arch *arch;
+  struct pkg_hash_iter *iter;
+  struct pkginfo *pkg;
+
+  if (archname == NULL || *argv)
+    badusage(_("--%s takes exactly one argument"), cipaction->olong);
+
+  modstatdb_open(msdbrw_readonly);
+
+  arch = dpkg_arch_find(archname);
+  if (arch->type != DPKG_ARCH_FOREIGN) {
+    warning(_("cannot remove non-foreign architecture '%s'"), arch->name);
+    return 0;
+  }
+
+  /* Check if it's safe to remove the architecture from the db. */
+  iter = pkg_hash_iter_new();
+  while ((pkg = pkg_hash_iter_next_pkg(iter))) {
+    if (pkg->status < PKG_STAT_HALFINSTALLED)
+      continue;
+    if (pkg->installed.arch == arch) {
+      if (in_force(FORCE_ARCHITECTURE))
+        warning(_("removing architecture '%s' currently in use by database"),
+                arch->name);
+      else
+        ohshit(_("cannot remove architecture '%s' currently in use by the database"),
+               arch->name);
+      break;
+    }
+  }
+  pkg_hash_iter_free(iter);
+
+  dpkg_arch_unmark(arch);
+  dpkg_arch_save_list();
+
+  modstatdb_shutdown();
+
+  return 0;
+}
+
+int execbackend(const char *const *argv) DPKG_ATTR_NORET;
+int commandfd(const char *const *argv);
+
+/* This table has both the action entries in it and the normal options.
+ * The action entries are made with the ACTION macro, as they all
+ * have a very similar structure. */
+static const struct cmdinfo cmdinfos[]= {
+#define ACTIONBACKEND(longopt, shortopt, backend) \
+ { longopt, shortopt, 0, NULL, NULL, setaction, 0, (void *)backend, execbackend }
+
+  ACTION( "install",                        'i', act_install,              archivefiles    ),
+  ACTION( "unpack",                          0,  act_unpack,               archivefiles    ),
+  ACTION( "record-avail",                   'A', act_avail,                archivefiles    ),
+  ACTION( "configure",                       0,  act_configure,            packages        ),
+  ACTION( "remove",                         'r', act_remove,               packages        ),
+  ACTION( "purge",                          'P', act_purge,                packages        ),
+  ACTION( "triggers-only",                   0,  act_triggers,             packages        ),
+  ACTION( "verify",                         'V', act_verify,               verify          ),
+  ACTIONBACKEND( "listfiles",               'L', DPKGQUERY),
+  ACTIONBACKEND( "status",                  's', DPKGQUERY),
+  ACTION( "get-selections",                  0,  act_getselections,        getselections   ),
+  ACTION( "set-selections",                  0,  act_setselections,        setselections   ),
+  ACTION( "clear-selections",                0,  act_clearselections,      clearselections ),
+  ACTIONBACKEND( "print-avail",             'p', DPKGQUERY),
+  ACTION( "update-avail",                    0,  act_avreplace,            updateavailable ),
+  ACTION( "merge-avail",                     0,  act_avmerge,              updateavailable ),
+  ACTION( "clear-avail",                     0,  act_avclear,              updateavailable ),
+  ACTION( "forget-old-unavail",              0,  act_forgetold,            forgetold       ),
+  ACTION( "audit",                          'C', act_audit,                audit           ),
+  ACTION( "yet-to-unpack",                   0,  act_unpackchk,            unpackchk       ),
+  ACTIONBACKEND( "list",                    'l', DPKGQUERY),
+  ACTIONBACKEND( "search",                  'S', DPKGQUERY),
+  ACTION_MUX( "assert",                      0,  act_assert_feature,       assert_feature, &assert_feature_name),
+  ACTION( "add-architecture",                0,  act_arch_add,             arch_add        ),
+  ACTION( "remove-architecture",             0,  act_arch_remove,          arch_remove     ),
+  ACTION( "print-architecture",              0,  act_printarch,            printarch   ),
+  ACTION( "print-foreign-architectures",     0,  act_printforeignarches,   print_foreign_arches ),
+  ACTION( "predep-package",                  0,  act_predeppackage,        predeppackage   ),
+  ACTION( "validate-pkgname",                0,  act_validate_pkgname,     validate_pkgname ),
+  ACTION( "validate-trigname",               0,  act_validate_trigname,    validate_trigname ),
+  ACTION( "validate-archname",               0,  act_validate_archname,    validate_archname ),
+  ACTION( "validate-version",                0,  act_validate_version,     validate_version ),
+  ACTION( "compare-versions",                0,  act_cmpversions,          cmpversions     ),
+/*
+  ACTION( "command-fd",                   'c', act_commandfd,   commandfd     ),
+*/
+  ACTION( "help",                           '?', act_help,                 usage),
+  ACTION( "version",                         0,  act_version,              printversion),
+
+  { "pre-invoke",        0,   1, NULL,          NULL,      set_invoke_hook, 0, &pre_invoke_hooks },
+  { "post-invoke",       0,   1, NULL,          NULL,      set_invoke_hook, 0, &post_invoke_hooks },
+  { "path-exclude",      0,   1, NULL,          NULL,      set_filter,     0 },
+  { "path-include",      0,   1, NULL,          NULL,      set_filter,     1 },
+  { "verify-format",     0,   1, NULL,          NULL,      set_verify_format },
+  { "status-logger",     0,   1, NULL,          NULL,      set_invoke_hook, 0, &status_loggers },
+  { "status-fd",         0,   1, NULL,          NULL,      set_pipe, 0 },
+  { "log",               0,   1, NULL,          &log_file, NULL,    0 },
+  { "pending",           'a', 0, &f_pending,    NULL,      NULL,    1 },
+  { "recursive",         'R', 0, &f_recursive,  NULL,      NULL,    1 },
+  { "no-act",            0,   0, &f_noact,      NULL,      NULL,    1 },
+  { "dry-run",           0,   0, &f_noact,      NULL,      NULL,    1 },
+  { "simulate",          0,   0, &f_noact,      NULL,      NULL,    1 },
+  { "no-pager",          0,   0, NULL,          NULL,      set_no_pager,  0 },
+  { "no-debsig",         0,   0, &f_nodebsig,   NULL,      NULL,    1 },
+  /* Alias ('G') for --refuse. */
+  {  NULL,               'G', 0, NULL,          NULL,      reset_force_option, FORCE_DOWNGRADE },
+  { "selected-only",     'O', 0, &f_alsoselect, NULL,      NULL,    0 },
+  { "triggers",           0,  0, &f_triggers,   NULL,      NULL,    1 },
+  { "no-triggers",        0,  0, &f_triggers,   NULL,      NULL,   -1 },
+  /* TODO: Remove ('N') sometime. */
+  { "no-also-select",    'N', 0, &f_alsoselect, NULL,      NULL,    0 },
+  { "skip-same-version", 'E', 0, &f_skipsame,   NULL,      NULL,    1 },
+  { "auto-deconfigure",  'B', 0, &f_autodeconf, NULL,      NULL,    1 },
+  { "robot",             0,   0, &f_robot,      NULL,      NULL,    1 },
+  { "root",              0,   1, NULL,          NULL,      set_root,      0 },
+  { "abort-after",       0,   1, &errabort,     NULL,      set_integer,   0 },
+  { "admindir",          0,   1, NULL,          NULL,      set_admindir,  0 },
+  { "instdir",           0,   1, NULL,          NULL,      set_instdir,   0 },
+  { "ignore-depends",    0,   1, NULL,          NULL,      set_ignore_depends, 0 },
+  { "force",             0,   2, NULL,          NULL,      set_force_option,   1 },
+  { "refuse",            0,   2, NULL,          NULL,      set_force_option,   0 },
+  { "no-force",          0,   2, NULL,          NULL,      set_force_option,   0 },
+  { "debug",             'D', 1, NULL,          NULL,      set_debug,     0 },
+  ACTIONBACKEND( "build",		'b', BACKEND),
+  ACTIONBACKEND( "contents",		'c', BACKEND),
+  ACTIONBACKEND( "control",		'e', BACKEND),
+  ACTIONBACKEND( "info",		'I', BACKEND),
+  ACTIONBACKEND( "field",		'f', BACKEND),
+  ACTIONBACKEND( "extract",		'x', BACKEND),
+  ACTIONBACKEND( "vextract",		'X', BACKEND),
+  ACTIONBACKEND( "ctrl-tarfile",	0,   BACKEND),
+  ACTIONBACKEND( "fsys-tarfile",	0,   BACKEND),
+  { NULL,                0,   0, NULL,          NULL,      NULL,          0 }
+};
+
+int
+execbackend(const char *const *argv)
+{
+  struct command cmd;
+
+  command_init(&cmd, cipaction->arg_ptr, NULL);
+  command_add_arg(&cmd, cipaction->arg_ptr);
+  command_add_arg(&cmd, str_fmt("--%s", cipaction->olong));
+
+  /* Explicitly separate arguments from options as any user-supplied
+   * separator got stripped by the option parser */
+  command_add_arg(&cmd, "--");
+  command_add_argl(&cmd, (const char **)argv);
+
+  command_exec(&cmd);
+}
+
+int
+commandfd(const char *const *argv)
+{
+  struct varbuf linevb = VARBUF_INIT;
+  const char * pipein;
+  const char **newargs = NULL, **endargs;
+  char *ptr, *endptr;
+  FILE *in;
+  long infd;
+  int ret = 0;
+  int c, lno, i;
+  bool skipchar;
+
+  pipein = *argv++;
+  if (pipein == NULL || *argv)
+    badusage(_("--%s takes exactly one argument"), cipaction->olong);
+
+  infd = dpkg_options_parse_arg_int(cipaction, pipein);
+  in = fdopen(infd, "r");
+  if (in == NULL)
+    ohshite(_("couldn't open '%i' for stream"), (int)infd);
+
+  lno = 0;
+
+  for (;;) {
+    bool mode = false;
+    int argc= 1;
+
+    push_error_context();
+
+    do {
+      c = getc(in);
+      if (c == '\n')
+        lno++;
+    } while (c != EOF && c_isspace(c));
+    if (c == EOF) break;
+    if (c == '#') {
+      do { c= getc(in); if (c == '\n') lno++; } while (c != EOF && c != '\n');
+      continue;
+    }
+    varbuf_reset(&linevb);
+    do {
+      varbuf_add_char(&linevb, c);
+      c= getc(in);
+      if (c == '\n') lno++;
+
+      /* This isn't fully accurate, but overestimating can't hurt. */
+      if (c_isspace(c))
+        argc++;
+    } while (c != EOF && c != '\n');
+    if (c == EOF)
+      ohshit(_("unexpected end of file before end of line %d"), lno);
+    if (!argc) continue;
+    varbuf_end_str(&linevb);
+    newargs = m_realloc(newargs, sizeof(const char *) * (argc + 1));
+    argc= 1;
+    ptr= linevb.buf;
+    endptr = ptr + linevb.used + 1;
+    skipchar = false;
+    while(ptr < endptr) {
+      if (skipchar) {
+	skipchar = false;
+      } else if (*ptr == '\\') {
+	memmove(ptr, (ptr+1), (linevb.used-(linevb.buf - ptr)-1));
+	endptr--;
+	skipchar = true;
+	continue;
+      } else if (c_isspace(*ptr)) {
+	if (mode == true) {
+	  *ptr = '\0';
+	  mode = false;
+	}
+      } else {
+	if (mode == false) {
+	  newargs[argc]= ptr;
+	  argc++;
+	  mode = true;
+	}
+      }
+      ptr++;
+    }
+    *ptr = '\0';
+    newargs[argc++] = NULL;
+
+    /* We strdup() each argument, but never free it, because the
+     * error messages contain references back to these strings.
+     * Freeing them, and reusing the memory, would make those
+     * error messages confusing, to say the least. */
+    for(i=1;i<argc;i++)
+      if (newargs[i])
+        newargs[i] = m_strdup(newargs[i]);
+    endargs = newargs;
+
+    setaction(NULL, NULL);
+    dpkg_options_parse((const char *const **)&endargs, cmdinfos, printforhelp);
+    if (!cipaction) badusage(_("need an action option"));
+
+    ret |= cipaction->action(endargs);
+
+    fsys_hash_reset();
+
+    pop_error_context(ehflag_normaltidy);
+  }
+
+  fclose(in);
+
+  return ret;
+}
+
+int main(int argc, const char *const *argv) {
+  char *force_string;
+  int ret;
+
+  dpkg_locales_init(PACKAGE);
+  dpkg_program_init("dpkg");
+  set_force_default(FORCE_ALL);
+  dpkg_options_load(DPKG, cmdinfos);
+  dpkg_options_parse(&argv, cmdinfos, printforhelp);
+
+  debug(dbg_general, "root=%s admindir=%s", dpkg_fsys_get_dir(), dpkg_db_get_dir());
+
+  /* When running as root, make sure our primary group is also root, so
+   * that files created by maintainer scripts have correct ownership. */
+  if (!in_force(FORCE_NON_ROOT) && getuid() == 0 && getgid() != 0)
+    if (setgid(0) < 0)
+      ohshite(_("cannot set primary group ID to root"));
+
+  if (!cipaction) badusage(_("need an action option"));
+
+  /* Always set environment, to avoid possible security risks. */
+  if (setenv("DPKG_ADMINDIR", dpkg_db_get_dir(), 1) < 0)
+    ohshite(_("unable to setenv for subprocesses"));
+  if (setenv("DPKG_ROOT", dpkg_fsys_get_dir(), 1) < 0)
+    ohshite(_("unable to setenv for subprocesses"));
+  force_string = get_force_string();
+  if (setenv("DPKG_FORCE", force_string, 1) < 0)
+    ohshite(_("unable to setenv for subprocesses"));
+  free(force_string);
+
+  if (!f_triggers)
+    f_triggers = (cipaction->arg_int == act_triggers && *argv) ? -1 : 1;
+
+  if (is_invoke_action(cipaction->arg_int)) {
+    run_invoke_hooks(cipaction->olong, &pre_invoke_hooks);
+    run_status_loggers(&status_loggers);
+  }
+
+  ret = cipaction->action(argv);
+
+  if (is_invoke_action(cipaction->arg_int))
+    run_invoke_hooks(cipaction->olong, &post_invoke_hooks);
+
+  free_invoke_hooks(&pre_invoke_hooks);
+  free_invoke_hooks(&post_invoke_hooks);
+
+  dpkg_program_done();
+  dpkg_locales_done();
+
+  return reportbroken_retexitstatus(ret);
+}
diff --git a/src/main/main.h b/src/main/main.h
new file mode 100644
index 0000000..f841e8d
--- /dev/null
+++ b/src/main/main.h
@@ -0,0 +1,304 @@
+/*
+ * dpkg - main program for package management
+ * main.h - external definitions for this program
+ *
+ * Copyright © 1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2006, 2008-2016 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef MAIN_H
+#define MAIN_H
+
+#include <dpkg/debug.h>
+#include <dpkg/pkg-list.h>
+
+#include "force.h"
+#include "actions.h"
+#include "security-mac.h"
+
+/* These two are defined in <dpkg/fsys.h>. */
+struct fsys_namenode_list;
+struct fsys_namenode;
+
+enum pkg_istobe {
+	/** Package is to be left in a normal state. */
+	PKG_ISTOBE_NORMAL,
+	/** Package is to be removed. */
+	PKG_ISTOBE_REMOVE,
+	/** Package is to be installed, configured or triggered. */
+	PKG_ISTOBE_INSTALLNEW,
+	/** Package is to be deconfigured. */
+	PKG_ISTOBE_DECONFIGURE,
+	/** Package is to be checked for Pre-Depends satisfiability. */
+	PKG_ISTOBE_PREINSTALL,
+};
+
+enum pkg_cycle_color {
+	PKG_CYCLE_WHITE,
+	PKG_CYCLE_GRAY,
+	PKG_CYCLE_BLACK,
+};
+
+struct perpackagestate {
+  enum pkg_istobe istobe;
+
+  /** Used during cycle detection. */
+  enum pkg_cycle_color color;
+
+  bool enqueued;
+
+  int replacingfilesandsaid;
+  int cmdline_seen;
+
+  /** Non-NULL iff in trigproc.c:deferred. */
+  struct pkg_list *trigprocdeferred;
+};
+
+extern const char *const statusstrings[];
+
+extern int f_robot;
+extern int f_pending, f_recursive, f_alsoselect, f_skipsame, f_noact;
+extern int f_autodeconf, f_nodebsig;
+extern int f_triggers;
+
+extern bool abort_processing;
+extern int errabort;
+extern struct pkg_list *ignoredependss;
+
+struct invoke_hook {
+	struct invoke_hook *next;
+	char *command;
+};
+
+struct invoke_list {
+	struct invoke_hook *head, **tail;
+};
+
+/* from perpkgstate.c */
+
+void ensure_package_clientdata(struct pkginfo *pkg);
+
+/* from archives.c */
+
+int archivefiles(const char *const *argv);
+void process_archive(const char *filename);
+bool wanttoinstall(struct pkginfo *pkg);
+
+/* from update.c */
+
+int forgetold(const char *const *argv);
+int updateavailable(const char *const *argv);
+
+/* from enquiry.c */
+
+extern const char *assert_feature_name;
+
+int audit(const char *const *argv);
+int unpackchk(const char *const *argv);
+int assert_feature(const char *const *argv);
+int validate_pkgname(const char *const *argv);
+int validate_trigname(const char *const *argv);
+int validate_archname(const char *const *argv);
+int validate_version(const char *const *argv);
+int predeppackage(const char *const *argv);
+int printarch(const char *const *argv);
+int printinstarch(const char *const *argv);
+int print_foreign_arches(const char *const *argv);
+int cmpversions(const char *const *argv);
+
+/* from verify.c */
+
+bool verify_set_output(const char *name);
+int verify(const char *const *argv);
+
+/* from select.c */
+
+int getselections(const char *const *argv);
+int setselections(const char *const *argv);
+int clearselections(const char *const *argv);
+
+/* from packages.c, remove.c and configure.c */
+
+void md5hash(struct pkginfo *pkg, char *hashbuf, const char *fn);
+void enqueue_package(struct pkginfo *pkg);
+void enqueue_package_mark_seen(struct pkginfo *pkg);
+void process_queue(void);
+int packages(const char *const *argv);
+void removal_bulk(struct pkginfo *pkg);
+int conffderef(struct pkginfo *pkg, struct varbuf *result, const char *in);
+
+enum dep_check {
+  DEP_CHECK_HALT = 0,
+  DEP_CHECK_DEFER = 1,
+  DEP_CHECK_OK = 2,
+};
+
+enum dep_check dependencies_ok(struct pkginfo *pkg, struct pkginfo *removing,
+                               struct varbuf *aemsgs);
+enum dep_check breakses_ok(struct pkginfo *pkg, struct varbuf *aemsgs);
+
+void deferred_remove(struct pkginfo *pkg);
+void deferred_configure(struct pkginfo *pkg);
+
+/*
+ * During the packages queue processing, the algorithm for deciding what to
+ * configure first is as follows:
+ *
+ * Loop through all packages doing a ‘try 1’ until we've been round and
+ * nothing has been done, then do ‘try 2’, and subsequent ones likewise.
+ * The incrementing of ‘dependtry’ is done by process_queue().
+ *
+ * Try 1:
+ *   Are all dependencies of this package done? If so, do it.
+ *   Are any of the dependencies missing or the wrong version?
+ *     If so, abort (unless --force-depends, in which case defer).
+ *   Will we need to configure a package we weren't given as an
+ *     argument? If so, abort ─ except if --force-configure-any,
+ *     in which case we add the package to the argument list.
+ *   If none of the above, defer the package.
+ *
+ * Try 2:
+ *   Find a cycle and break it (see above).
+ *   Do as for try 1.
+ *
+ * Try 3:
+ *   Start processing triggers if necessary.
+ *   Do as for try 2.
+ *
+ * Try 4:
+ *   Same as for try 3, but check trigger cycles even when deferring
+ *   processing due to unsatisfiable dependencies.
+ *
+ * Try 5 (only if --force-depends-version):
+ *   Same as for try 2, but don't mind version number in dependencies.
+ *
+ * Try 6 (only if --force-depends):
+ *   Do anyway.
+ */
+enum dependtry {
+	DEPEND_TRY_NORMAL = 1,
+	DEPEND_TRY_CYCLES = 2,
+	DEPEND_TRY_TRIGGERS = 3,
+	DEPEND_TRY_TRIGGERS_CYCLES = 4,
+	DEPEND_TRY_FORCE_DEPENDS_VERSION = 5,
+	DEPEND_TRY_FORCE_DEPENDS = 6,
+	DEPEND_TRY_LAST,
+};
+
+extern enum dependtry dependtry;
+extern int sincenothing;
+
+/* from cleanup.c (most of these are declared in archives.h) */
+
+void cu_prermremove(int argc, void **argv);
+
+/* from errors.c */
+
+void print_error_perpackage(const char *emsg, const void *data);
+void print_error_perarchive(const char *emsg, const void *data);
+int reportbroken_retexitstatus(int ret);
+bool skip_due_to_hold(struct pkginfo *pkg);
+
+/* from help.c */
+
+struct stat;
+
+bool ignore_depends(const struct pkginfo *pkg);
+bool force_breaks(struct deppossi *possi);
+bool force_depends(struct deppossi *possi);
+bool force_conflicts(struct deppossi *possi);
+void
+conffile_mark_obsolete(struct pkginfo *pkg, struct fsys_namenode *namenode);
+void pkg_conffiles_mark_old(struct pkginfo *pkg);
+void checkpath(void);
+
+struct fsys_namenode *
+namenodetouse(struct fsys_namenode *namenode,
+              struct pkginfo *pkg, struct pkgbin *pkgbin);
+
+int maintscript_installed(struct pkginfo *pkg, const char *scriptname,
+                          const char *desc, ...) DPKG_ATTR_SENTINEL;
+int maintscript_new(struct pkginfo *pkg,
+                    const char *scriptname, const char *desc,
+                    const char *cidir, char *cidirrest, ...)
+	DPKG_ATTR_SENTINEL;
+int maintscript_fallback(struct pkginfo *pkg,
+                         const char *scriptname, const char *desc,
+                         const char *cidir, char *cidirrest,
+                         const char *ifok, const char *iffallback);
+
+/* Callers wanting to run the postinst use these two as they want to postpone
+ * trigger incorporation until after updating the package status. The effect
+ * is that a package can trigger itself. */
+int maintscript_postinst(struct pkginfo *pkg, ...) DPKG_ATTR_SENTINEL;
+void post_postinst_tasks(struct pkginfo *pkg, enum pkgstatus new_status);
+
+void clear_istobes(void);
+bool
+dir_is_used_by_others(struct fsys_namenode *namenode, struct pkginfo *pkg);
+bool
+dir_is_used_by_pkg(struct fsys_namenode *namenode, struct pkginfo *pkg,
+                   struct fsys_namenode_list *list);
+bool
+dir_has_conffiles(struct fsys_namenode *namenode, struct pkginfo *pkg);
+
+void log_action(const char *action, struct pkginfo *pkg, struct pkgbin *pkgbin);
+
+/* from trigproc.c */
+
+enum trigproc_type {
+	/** Opportunistic deferred trigger processing. */
+	TRIGPROC_TRY_DEFERRED,
+	/** Opportunistic queued trigger processing. */
+	TRIGPROC_TRY_QUEUED,
+	/** Required trigger processing. */
+	TRIGPROC_REQUIRED,
+};
+
+void trigproc_install_hooks(void);
+void trigproc_populate_deferred(void);
+void trigproc_run_deferred(void);
+void trigproc_reset_cycle(void);
+
+void trigproc(struct pkginfo *pkg, enum trigproc_type type);
+
+void trig_activate_packageprocessing(struct pkginfo *pkg);
+
+/* from depcon.c */
+
+enum which_pkgbin {
+  wpb_installed,
+  wpb_available,
+  wpb_by_istobe,
+};
+
+struct deppossi_pkg_iterator;
+
+struct deppossi_pkg_iterator *
+deppossi_pkg_iter_new(struct deppossi *possi, enum which_pkgbin wpb);
+struct pkginfo *
+deppossi_pkg_iter_next(struct deppossi_pkg_iterator *iter);
+void
+deppossi_pkg_iter_free(struct deppossi_pkg_iterator *iter);
+
+bool depisok(struct dependency *dep, struct varbuf *whynot,
+             struct pkginfo **fixbyrm, struct pkginfo **fixbytrigaw,
+             bool allowunconfigd);
+struct cyclesofarlink;
+bool findbreakcycle(struct pkginfo *pkg);
+void describedepcon(struct varbuf *addto, struct dependency *dep);
+
+#endif /* MAIN_H */
diff --git a/src/main/packages.c b/src/main/packages.c
new file mode 100644
index 0000000..aba9ba7
--- /dev/null
+++ b/src/main/packages.c
@@ -0,0 +1,760 @@
+/*
+ * dpkg - main program for package management
+ * packages.c - common to actions that process packages
+ *
+ * Copyright © 1994,1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2006-2014 Guillem Jover <guillem@debian.org>
+ * Copyright © 2011 Linaro Limited
+ * Copyright © 2011 Raphaël Hertzog <hertzog@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <string.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/pkg-list.h>
+#include <dpkg/pkg-queue.h>
+#include <dpkg/string.h>
+#include <dpkg/options.h>
+#include <dpkg/db-ctrl.h>
+#include <dpkg/db-fsys.h>
+
+#include "main.h"
+
+static struct pkginfo *progress_bytrigproc;
+static struct pkg_queue queue = PKG_QUEUE_INIT;
+
+enum dependtry dependtry = DEPEND_TRY_NORMAL;
+int sincenothing = 0;
+
+void
+enqueue_package(struct pkginfo *pkg)
+{
+  ensure_package_clientdata(pkg);
+  if (pkg->clientdata->enqueued)
+    return;
+  pkg->clientdata->enqueued = true;
+  pkg_queue_push(&queue, pkg);
+}
+
+void
+enqueue_package_mark_seen(struct pkginfo *pkg)
+{
+  enqueue_package(pkg);
+  pkg->clientdata->cmdline_seen++;
+}
+
+static void
+enqueue_pending(void)
+{
+  struct pkg_hash_iter *iter;
+  struct pkginfo *pkg;
+
+  iter = pkg_hash_iter_new();
+  while ((pkg = pkg_hash_iter_next_pkg(iter)) != NULL) {
+    switch (cipaction->arg_int) {
+    case act_configure:
+      if (!(pkg->status == PKG_STAT_UNPACKED ||
+            pkg->status == PKG_STAT_HALFCONFIGURED ||
+            pkg->trigpend_head))
+        continue;
+      if (pkg->want != PKG_WANT_INSTALL &&
+          pkg->want != PKG_WANT_HOLD)
+        continue;
+      break;
+    case act_triggers:
+      if (!pkg->trigpend_head)
+        continue;
+      if (pkg->want != PKG_WANT_INSTALL &&
+          pkg->want != PKG_WANT_HOLD)
+        continue;
+      break;
+    case act_remove:
+    case act_purge:
+      if (pkg->want != PKG_WANT_PURGE) {
+        if (pkg->want != PKG_WANT_DEINSTALL)
+          continue;
+        if (pkg->status == PKG_STAT_CONFIGFILES)
+          continue;
+      }
+      if (pkg->status == PKG_STAT_NOTINSTALLED)
+        continue;
+      break;
+    default:
+      internerr("unknown action '%d'", cipaction->arg_int);
+    }
+    enqueue_package(pkg);
+  }
+  pkg_hash_iter_free(iter);
+}
+
+static void
+enqueue_specified(const char *const *argv)
+{
+  const char *thisarg;
+
+  while ((thisarg = *argv++) != NULL) {
+    struct pkginfo *pkg;
+
+    pkg = dpkg_options_parse_pkgname(cipaction, thisarg);
+    if (pkg->status == PKG_STAT_NOTINSTALLED &&
+        str_match_end(pkg->set->name, DEBEXT)) {
+      badusage(_("you must specify packages by their own names, "
+                 "not by quoting the names of the files they come in"));
+    }
+    enqueue_package_mark_seen(pkg);
+  }
+
+  if (cipaction->arg_int == act_configure)
+    trigproc_populate_deferred();
+}
+
+int
+packages(const char *const *argv)
+{
+  trigproc_install_hooks();
+
+  modstatdb_open(f_noact ?                  msdbrw_readonly :
+                 in_force(FORCE_NON_ROOT) ? msdbrw_write :
+                                            msdbrw_needsuperuser);
+  checkpath();
+  pkg_infodb_upgrade();
+
+  log_message("startup packages %s", cipaction->olong);
+
+  if (f_pending) {
+    if (*argv)
+      badusage(_("--%s --pending does not take any non-option arguments"),cipaction->olong);
+
+    enqueue_pending();
+  } else {
+    if (!*argv)
+      badusage(_("--%s (without --pending) needs at least one package name argument"),
+               cipaction->olong);
+
+    enqueue_specified(argv);
+  }
+
+  ensure_diversions();
+
+  process_queue();
+  trigproc_run_deferred();
+
+  modstatdb_shutdown();
+
+  return 0;
+}
+
+void process_queue(void) {
+  struct pkg_list *rundown;
+  volatile enum action action_todo;
+  jmp_buf ejbuf;
+  enum pkg_istobe istobe = PKG_ISTOBE_NORMAL;
+
+  if (abort_processing)
+    return;
+
+  clear_istobes();
+
+  switch (cipaction->arg_int) {
+  case act_triggers:
+  case act_configure:
+  case act_install:
+    istobe = PKG_ISTOBE_INSTALLNEW;
+    break;
+  case act_remove:
+  case act_purge:
+    istobe = PKG_ISTOBE_REMOVE;
+    break;
+  default:
+    internerr("unknown action '%d'", cipaction->arg_int);
+  }
+  for (rundown = queue.head; rundown; rundown = rundown->next) {
+    ensure_package_clientdata(rundown->pkg);
+
+    /* We have processed this package more than once. There are no duplicates
+     * as we make sure of that when enqueuing them. */
+    if (rundown->pkg->clientdata->cmdline_seen > 1) {
+      switch (cipaction->arg_int) {
+      case act_triggers:
+      case act_configure: case act_remove: case act_purge:
+        printf(_("Package %s listed more than once, only processing once.\n"),
+               pkg_name(rundown->pkg, pnaw_nonambig));
+        break;
+      case act_install:
+        printf(_("More than one copy of package %s has been unpacked\n"
+               " in this run !  Only configuring it once.\n"),
+               pkg_name(rundown->pkg, pnaw_nonambig));
+        break;
+      default:
+        internerr("unknown action '%d'", cipaction->arg_int);
+      }
+    }
+    rundown->pkg->clientdata->istobe = istobe;
+  }
+
+  while (!pkg_queue_is_empty(&queue)) {
+    struct pkginfo *volatile pkg;
+
+    pkg = pkg_queue_pop(&queue);
+    if (!pkg)
+      continue; /* Duplicate, which we removed earlier. */
+
+    ensure_package_clientdata(pkg);
+    pkg->clientdata->enqueued = false;
+
+    action_todo = cipaction->arg_int;
+
+    if (sincenothing++ > queue.length * 3 + 2) {
+      /* Make sure that even if we have exceeded the queue since not having
+       * made any progress, we are not getting stuck trying to progress by
+       * trigger processing, w/o jumping into the next dependtry. */
+      dependtry++;
+      sincenothing = 0;
+      if (dependtry >= DEPEND_TRY_LAST)
+        internerr("exceeded dependtry %d (sincenothing=%d; queue.length=%d)",
+                  dependtry, sincenothing, queue.length);
+    } else if (sincenothing > queue.length * 2 + 2) {
+      if (dependtry >= DEPEND_TRY_TRIGGERS &&
+          progress_bytrigproc && progress_bytrigproc->trigpend_head) {
+        enqueue_package(pkg);
+        pkg = progress_bytrigproc;
+        progress_bytrigproc = NULL;
+        action_todo = act_configure;
+      } else {
+        dependtry++;
+        sincenothing = 0;
+        if (dependtry >= DEPEND_TRY_LAST)
+          internerr("exceeded dependtry %d (sincenothing=%d, queue.length=%d)",
+                    dependtry, sincenothing, queue.length);
+      }
+    }
+
+    debug(dbg_general, "process queue pkg %s queue.len %d progress %d, try %d",
+          pkg_name(pkg, pnaw_always), queue.length, sincenothing, dependtry);
+
+    if (pkg->status > PKG_STAT_INSTALLED)
+      internerr("package %s status %d is out-of-bounds",
+                pkg_name(pkg, pnaw_always), pkg->status);
+
+    if (setjmp(ejbuf)) {
+      /* Give up on it from the point of view of other packages, i.e. reset
+       * istobe. */
+      pkg->clientdata->istobe = PKG_ISTOBE_NORMAL;
+
+      pop_error_context(ehflag_bombout);
+      if (abort_processing)
+        return;
+      continue;
+    }
+    push_error_context_jump(&ejbuf, print_error_perpackage,
+                            pkg_name(pkg, pnaw_nonambig));
+
+    switch (action_todo) {
+    case act_triggers:
+      if (!pkg->trigpend_head)
+        ohshit(_("package %.250s is not ready for trigger processing\n"
+                 " (current status '%.250s' with no pending triggers)"),
+               pkg_name(pkg, pnaw_nonambig), pkg_status_name(pkg));
+      /* Fall through. */
+    case act_install:
+      /* Don't try to configure pkgs that we've just disappeared. */
+      if (pkg->status == PKG_STAT_NOTINSTALLED)
+        break;
+      /* Fall through. */
+    case act_configure:
+      /* Do whatever is most needed. */
+      if (pkg->trigpend_head)
+        trigproc(pkg, TRIGPROC_TRY_QUEUED);
+      else
+        deferred_configure(pkg);
+      break;
+    case act_remove: case act_purge:
+      deferred_remove(pkg);
+      break;
+    default:
+      internerr("unknown action '%d'", cipaction->arg_int);
+    }
+    m_output(stdout, _("<standard output>"));
+    m_output(stderr, _("<standard error>"));
+
+    pop_error_context(ehflag_normaltidy);
+  }
+
+  if (queue.length)
+    internerr("finished package processing with non-empty queue length %d",
+              queue.length);
+}
+
+/*** Dependency processing - common to --configure and --remove. ***/
+
+/*
+ * The algorithm for deciding what to configure or remove first is as
+ * follows:
+ *
+ * Loop through all packages doing a ‘try 1’ until we've been round and
+ * nothing has been done, then do ‘try 2’ and ‘try 3’ likewise.
+ *
+ * When configuring, in each try we check to see whether all
+ * dependencies of this package are done. If so we do it. If some of
+ * the dependencies aren't done yet but will be later we defer the
+ * package, otherwise it is an error.
+ *
+ * When removing, in each try we check to see whether there are any
+ * packages that would have dependencies missing if we removed this
+ * one. If not we remove it now. If some of these packages are
+ * themselves scheduled for removal we defer the package until they
+ * have been done.
+ *
+ * The criteria for satisfying a dependency vary with the various
+ * tries. In try 1 we treat the dependencies as absolute. In try 2 we
+ * check break any cycles in the dependency graph involving the package
+ * we are trying to process before trying to process the package
+ * normally. In try 3 (which should only be reached if
+ * --force-depends-version is set) we ignore version number clauses in
+ * Depends lines. In try 4 (only reached if --force-depends is set) we
+ * say "ok" regardless.
+ *
+ * If we are configuring and one of the packages we depend on is
+ * awaiting configuration but wasn't specified in the argument list we
+ * will add it to the argument list if --configure-any is specified.
+ * In this case we note this as having "done something" so that we
+ * don't needlessly escalate to higher levels of dependency checking
+ * and breaking.
+ */
+
+enum found_status {
+  FOUND_NONE = 0,
+  FOUND_DEFER = 1,
+  FOUND_FORCED = 2,
+  FOUND_OK = 3,
+};
+
+static enum found_status
+found_forced_on(enum dependtry dependtry_forced)
+{
+  if (dependtry >= dependtry_forced)
+    return FOUND_FORCED;
+  else
+    return FOUND_DEFER;
+}
+
+/*
+ * Return values:
+ *   0: cannot be satisfied.
+ *   1: defer: may be satisfied later, when other packages are better or
+ *      at higher dependtry due to --force
+ *      will set *fixbytrig to package whose trigger processing would help
+ *      if applicable (and leave it alone otherwise).
+ *   2: not satisfied but forcing
+ *      (*interestingwarnings >= 0 on exit? caller is to print oemsgs).
+ *   3: satisfied now.
+ */
+static enum found_status
+deppossi_ok_found(struct pkginfo *possdependee, struct pkginfo *requiredby,
+                  struct pkginfo *removing, struct deppossi *provider,
+                  struct pkginfo **fixbytrig,
+                  bool *matched, struct deppossi *checkversion,
+                  int *interestingwarnings, struct varbuf *oemsgs)
+{
+  enum found_status thisf;
+
+  if (ignore_depends(possdependee)) {
+    debug(dbg_depcondetail,"      ignoring depended package so ok and found");
+    return FOUND_OK;
+  }
+  thisf = FOUND_NONE;
+  if (possdependee == removing) {
+    if (provider) {
+      varbuf_printf(oemsgs,
+                    _("  Package %s which provides %s is to be removed.\n"),
+                    pkg_name(possdependee, pnaw_nonambig),
+                    provider->ed->name);
+    } else {
+      varbuf_printf(oemsgs, _("  Package %s is to be removed.\n"),
+                    pkg_name(possdependee, pnaw_nonambig));
+    }
+
+    *matched = true;
+    debug(dbg_depcondetail,"      removing possdependee, returning %d",thisf);
+    return thisf;
+  }
+  switch (possdependee->status) {
+  case PKG_STAT_UNPACKED:
+  case PKG_STAT_HALFCONFIGURED:
+  case PKG_STAT_TRIGGERSAWAITED:
+  case PKG_STAT_TRIGGERSPENDING:
+  case PKG_STAT_INSTALLED:
+    if (checkversion) {
+      if (provider) {
+        debug(dbg_depcondetail, "      checking package %s provided by pkg %s",
+              checkversion->ed->name, pkg_name(possdependee, pnaw_always));
+        if (!pkg_virtual_deppossi_satisfied(checkversion, provider)) {
+          varbuf_printf(oemsgs,
+                        _("  Version of %s on system, provided by %s, is %s.\n"),
+                        checkversion->ed->name,
+                        pkg_name(possdependee, pnaw_always),
+                        versiondescribe(&provider->version, vdew_nonambig));
+          if (in_force(FORCE_DEPENDS_VERSION))
+            thisf = found_forced_on(DEPEND_TRY_FORCE_DEPENDS_VERSION);
+          debug(dbg_depcondetail, "      bad version");
+          goto unsuitable;
+        }
+      } else {
+        debug(dbg_depcondetail, "      checking non-provided pkg %s",
+              pkg_name(possdependee, pnaw_always));
+        if (!versionsatisfied(&possdependee->installed, checkversion)) {
+          varbuf_printf(oemsgs, _("  Version of %s on system is %s.\n"),
+                        pkg_name(possdependee, pnaw_nonambig),
+                        versiondescribe(&possdependee->installed.version,
+                                        vdew_nonambig));
+          if (in_force(FORCE_DEPENDS_VERSION))
+            thisf = found_forced_on(DEPEND_TRY_FORCE_DEPENDS_VERSION);
+          debug(dbg_depcondetail, "      bad version");
+          goto unsuitable;
+        }
+      }
+    }
+    if (possdependee->status == PKG_STAT_INSTALLED ||
+        possdependee->status == PKG_STAT_TRIGGERSPENDING) {
+      debug(dbg_depcondetail,"      is installed, ok and found");
+      return FOUND_OK;
+    }
+    if (possdependee->status == PKG_STAT_TRIGGERSAWAITED) {
+      if (possdependee->trigaw.head == NULL)
+        internerr("package %s in state %s, has no awaited triggers",
+                  pkg_name(possdependee, pnaw_always),
+                  pkg_status_name(possdependee));
+
+      if (removing ||
+          !(f_triggers ||
+            (possdependee->clientdata &&
+             possdependee->clientdata->istobe == PKG_ISTOBE_INSTALLNEW))) {
+        if (provider) {
+          varbuf_printf(oemsgs,
+                        _("  Package %s which provides %s awaits trigger processing.\n"),
+                        pkg_name(possdependee, pnaw_nonambig),
+                        provider->ed->name);
+        } else {
+          varbuf_printf(oemsgs,
+                        _("  Package %s awaits trigger processing.\n"),
+                        pkg_name(possdependee, pnaw_nonambig));
+        }
+        debug(dbg_depcondetail, "      triggers-awaited, no fixbytrig");
+        goto unsuitable;
+      }
+      /* We don't check the status of trigaw.head->pend here, just in case
+       * we get into the pathological situation where Triggers-Awaited but
+       * the named package doesn't actually have any pending triggers. In
+       * that case we queue the non-pending package for trigger processing
+       * anyway, and that trigger processing will be a noop except for
+       * sorting out all of the packages which name it in Triggers-Awaited.
+       *
+       * (This situation can only arise if modstatdb_note success in
+       * clearing the triggers-pending status of the pending package
+       * but then fails to go on to update the awaiters.) */
+      *fixbytrig = possdependee->trigaw.head->pend;
+      debug(dbg_depcondetail,
+            "      triggers-awaited, fixbytrig '%s', defer",
+            pkg_name(*fixbytrig, pnaw_always));
+      return FOUND_DEFER;
+    }
+    if (possdependee->clientdata &&
+        possdependee->clientdata->istobe == PKG_ISTOBE_INSTALLNEW) {
+      debug(dbg_depcondetail,"      unpacked/halfconfigured, defer");
+      return FOUND_DEFER;
+    } else if (!removing && in_force(FORCE_CONFIGURE_ANY) &&
+               !skip_due_to_hold(possdependee) &&
+               !(possdependee->status == PKG_STAT_HALFCONFIGURED)) {
+      notice(_("also configuring '%s' (required by '%s')"),
+             pkg_name(possdependee, pnaw_nonambig),
+             pkg_name(requiredby, pnaw_nonambig));
+      enqueue_package(possdependee);
+      sincenothing = 0;
+      return FOUND_DEFER;
+    } else {
+      if (provider) {
+        varbuf_printf(oemsgs,
+                      _("  Package %s which provides %s is not configured yet.\n"),
+                      pkg_name(possdependee, pnaw_nonambig),
+                      provider->ed->name);
+      } else {
+        varbuf_printf(oemsgs, _("  Package %s is not configured yet.\n"),
+                      pkg_name(possdependee, pnaw_nonambig));
+      }
+
+      debug(dbg_depcondetail, "      not configured/able");
+      goto unsuitable;
+    }
+
+  default:
+    if (provider) {
+      varbuf_printf(oemsgs,
+                    _("  Package %s which provides %s is not installed.\n"),
+                    pkg_name(possdependee, pnaw_nonambig),
+                    provider->ed->name);
+    } else {
+      varbuf_printf(oemsgs, _("  Package %s is not installed.\n"),
+                    pkg_name(possdependee, pnaw_nonambig));
+    }
+
+    debug(dbg_depcondetail, "      not installed");
+    goto unsuitable;
+  }
+
+unsuitable:
+  debug(dbg_depcondetail, "        returning %d", thisf);
+  (*interestingwarnings)++;
+
+  return thisf;
+}
+
+static void
+breaks_check_one(struct varbuf *aemsgs, enum dep_check *ok,
+                 struct deppossi *breaks, struct pkginfo *broken,
+                 struct pkginfo *breaker, struct deppossi *virtbroken)
+{
+  struct varbuf depmsg = VARBUF_INIT;
+
+  debug(dbg_depcondetail, "      checking breaker %s virtbroken %s",
+        pkg_name(breaker, pnaw_always),
+        virtbroken ? virtbroken->ed->name : "<none>");
+
+  if (breaker->status == PKG_STAT_NOTINSTALLED ||
+      breaker->status == PKG_STAT_CONFIGFILES)
+    return;
+  if (broken == breaker) return;
+  if (!versionsatisfied(&broken->installed, breaks)) return;
+  /* The test below can only trigger if dep_breaks start having
+   * arch qualifiers different from “any”. */
+  if (!archsatisfied(&broken->installed, breaks))
+    return;
+  if (ignore_depends(breaker)) return;
+  if (virtbroken && ignore_depends(&virtbroken->ed->pkg))
+    return;
+  if (virtbroken && !pkg_virtual_deppossi_satisfied(breaks, virtbroken))
+    return;
+
+  varbufdependency(&depmsg, breaks->up);
+  varbuf_end_str(&depmsg);
+  varbuf_printf(aemsgs, _(" %s (%s) breaks %s and is %s.\n"),
+                pkg_name(breaker, pnaw_nonambig),
+                versiondescribe(&breaker->installed.version, vdew_nonambig),
+                depmsg.buf, gettext(statusstrings[breaker->status]));
+  varbuf_destroy(&depmsg);
+
+  if (virtbroken) {
+    varbuf_printf(aemsgs, _("  %s (%s) provides %s.\n"),
+                  pkg_name(broken, pnaw_nonambig),
+                  versiondescribe(&broken->installed.version, vdew_nonambig),
+                  virtbroken->ed->name);
+  } else if (breaks->verrel != DPKG_RELATION_NONE) {
+    varbuf_printf(aemsgs, _("  Version of %s to be configured is %s.\n"),
+                  pkg_name(broken, pnaw_nonambig),
+                  versiondescribe(&broken->installed.version, vdew_nonambig));
+    if (in_force(FORCE_DEPENDS_VERSION))
+      return;
+  }
+  if (force_breaks(breaks)) return;
+  *ok = DEP_CHECK_HALT;
+}
+
+static void
+breaks_check_target(struct varbuf *aemsgs, enum dep_check *ok,
+                    struct pkginfo *broken, struct pkgset *target,
+                    struct deppossi *virtbroken)
+{
+  struct deppossi *possi;
+
+  for (possi = target->depended.installed; possi; possi = possi->rev_next) {
+    if (possi->up->type != dep_breaks) continue;
+    breaks_check_one(aemsgs, ok, possi, broken, possi->up->up, virtbroken);
+  }
+}
+
+enum dep_check
+breakses_ok(struct pkginfo *pkg, struct varbuf *aemsgs)
+{
+  struct dependency *dep;
+  struct deppossi *virtbroken;
+  enum dep_check ok = DEP_CHECK_OK;
+
+  debug(dbg_depcon, "    checking Breaks");
+
+  breaks_check_target(aemsgs, &ok, pkg, pkg->set, NULL);
+
+  for (dep= pkg->installed.depends; dep; dep= dep->next) {
+    if (dep->type != dep_provides) continue;
+    virtbroken = dep->list;
+    debug(dbg_depcondetail, "     checking virtbroken %s", virtbroken->ed->name);
+    breaks_check_target(aemsgs, &ok, pkg, virtbroken->ed, virtbroken);
+  }
+  return ok;
+}
+
+/*
+ * Checks [Pre]-Depends only.
+ */
+enum dep_check
+dependencies_ok(struct pkginfo *pkg, struct pkginfo *removing,
+                struct varbuf *aemsgs)
+{
+  /* Valid values: 2 = ok, 1 = defer, 0 = halt. */
+  enum dep_check ok;
+  /* Valid values: 0 = none, 1 = defer, 2 = withwarning, 3 = ok. */
+  enum found_status found, thisf;
+  int interestingwarnings;
+  bool matched, anycannotfixbytrig;
+  struct varbuf oemsgs = VARBUF_INIT;
+  struct dependency *dep;
+  struct deppossi *possi, *provider;
+  struct pkginfo *possfixbytrig, *canfixbytrig;
+
+  ok = DEP_CHECK_OK;
+  debug(dbg_depcon,"checking dependencies of %s (- %s)",
+        pkg_name(pkg, pnaw_always),
+        removing ? pkg_name(removing, pnaw_always) : "<none>");
+
+  anycannotfixbytrig = false;
+  canfixbytrig = NULL;
+  for (dep= pkg->installed.depends; dep; dep= dep->next) {
+    if (dep->type != dep_depends && dep->type != dep_predepends) continue;
+    debug(dbg_depcondetail,"  checking group ...");
+    matched = false;
+    interestingwarnings = 0;
+    varbuf_reset(&oemsgs);
+    found = FOUND_NONE;
+    possfixbytrig = NULL;
+    for (possi = dep->list; found != FOUND_OK && possi; possi = possi->next) {
+      struct deppossi_pkg_iterator *possi_iter;
+      struct pkginfo *pkg_pos;
+
+      debug(dbg_depcondetail,"    checking possibility  -> %s",possi->ed->name);
+      if (possi->cyclebreak) {
+        debug(dbg_depcondetail,"      break cycle so ok and found");
+        found = FOUND_OK;
+        break;
+      }
+
+      thisf = FOUND_NONE;
+      possi_iter = deppossi_pkg_iter_new(possi, wpb_installed);
+      while ((pkg_pos = deppossi_pkg_iter_next(possi_iter))) {
+        thisf = deppossi_ok_found(pkg_pos, pkg, removing, NULL,
+                                  &possfixbytrig, &matched, possi,
+                                  &interestingwarnings, &oemsgs);
+        if (thisf > found)
+          found = thisf;
+        if (found == FOUND_OK)
+          break;
+      }
+      deppossi_pkg_iter_free(possi_iter);
+
+      if (found != FOUND_OK) {
+        for (provider = possi->ed->depended.installed;
+             found != FOUND_OK && provider;
+             provider = provider->rev_next) {
+          if (provider->up->type != dep_provides)
+            continue;
+          debug(dbg_depcondetail, "     checking provider %s",
+                pkg_name(provider->up->up, pnaw_always));
+          if (!deparchsatisfied(&provider->up->up->installed, provider->arch,
+                                possi)) {
+            debug(dbg_depcondetail, "       provider does not satisfy arch");
+            continue;
+          }
+          thisf = deppossi_ok_found(provider->up->up, pkg, removing, provider,
+                                    &possfixbytrig, &matched, possi,
+                                    &interestingwarnings, &oemsgs);
+          if (thisf == FOUND_DEFER && provider->up->up == pkg && !removing) {
+            /* IOW, if the pkg satisfies its own dep (via a provide), then
+             * we let it pass, even if it isn't configured yet (as we're
+             * installing it). */
+             thisf = FOUND_OK;
+          }
+          if (thisf > found)
+            found = thisf;
+        }
+      }
+      debug(dbg_depcondetail,"    found %d",found);
+      if (thisf > found) found= thisf;
+    }
+    if (in_force(FORCE_DEPENDS)) {
+      thisf = found_forced_on(DEPEND_TRY_FORCE_DEPENDS);
+      if (thisf > found) {
+        found = thisf;
+        debug(dbg_depcondetail, "  rescued by force-depends, found %d", found);
+      }
+    }
+    debug(dbg_depcondetail, "  found %d matched %d possfixbytrig %s",
+          found, matched,
+          possfixbytrig ? pkg_name(possfixbytrig, pnaw_always) : "-");
+    if (removing && !matched) continue;
+    switch (found) {
+    case FOUND_NONE:
+      anycannotfixbytrig = true;
+      ok = DEP_CHECK_HALT;
+      /* Fall through. */
+    case FOUND_FORCED:
+      varbuf_add_str(aemsgs, " ");
+      varbuf_add_pkgbin_name(aemsgs, pkg, &pkg->installed, pnaw_nonambig);
+      varbuf_add_str(aemsgs, _(" depends on "));
+      varbufdependency(aemsgs, dep);
+      if (interestingwarnings) {
+        /* Don't print the line about the package to be removed if
+         * that's the only line. */
+        varbuf_end_str(&oemsgs);
+        varbuf_add_str(aemsgs, _("; however:\n"));
+        varbuf_add_varbuf(aemsgs, &oemsgs);
+      } else {
+        varbuf_add_str(aemsgs, ".\n");
+      }
+      break;
+    case FOUND_DEFER:
+      if (possfixbytrig)
+        canfixbytrig = possfixbytrig;
+      else
+        anycannotfixbytrig = true;
+      if (ok > DEP_CHECK_DEFER)
+        ok = DEP_CHECK_DEFER;
+      break;
+    case FOUND_OK:
+      break;
+    default:
+      internerr("unknown value for found '%d'", found);
+    }
+  }
+  if (ok == DEP_CHECK_HALT &&
+      (pkg->clientdata && pkg->clientdata->istobe == PKG_ISTOBE_REMOVE))
+    ok = DEP_CHECK_DEFER;
+  if (!anycannotfixbytrig && canfixbytrig)
+    progress_bytrigproc = canfixbytrig;
+
+  varbuf_destroy(&oemsgs);
+  debug(dbg_depcon,"ok %d msgs >>%.*s<<", ok, (int)aemsgs->used, aemsgs->buf);
+  return ok;
+}
diff --git a/src/main/perpkgstate.c b/src/main/perpkgstate.c
new file mode 100644
index 0000000..7542112
--- /dev/null
+++ b/src/main/perpkgstate.c
@@ -0,0 +1,43 @@
+/*
+ * dpkg - main program for package management
+ * perpkgstate.c - struct perpackagestate and function handling
+ *
+ * Copyright © 1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2000,2001 Wichert Akkerman <wakkerma@debian.org>
+ * Copyright © 2008-2014 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+
+#include "main.h"
+
+void
+ensure_package_clientdata(struct pkginfo *pkg)
+{
+	if (pkg->clientdata)
+		return;
+	pkg->clientdata = nfmalloc(sizeof(*pkg->clientdata));
+	pkg->clientdata->istobe = PKG_ISTOBE_NORMAL;
+	pkg->clientdata->color = PKG_CYCLE_WHITE;
+	pkg->clientdata->enqueued = false;
+	pkg->clientdata->replacingfilesandsaid = 0;
+	pkg->clientdata->cmdline_seen = 0;
+	pkg->clientdata->trigprocdeferred = NULL;
+}
diff --git a/src/main/remove.c b/src/main/remove.c
new file mode 100644
index 0000000..88c01a2
--- /dev/null
+++ b/src/main/remove.c
@@ -0,0 +1,686 @@
+/*
+ * dpkg - main program for package management
+ * remove.c - functionality for removing packages
+ *
+ * Copyright © 1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2007-2015 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <errno.h>
+#include <string.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/c-ctype.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/pkg.h>
+#include <dpkg/path.h>
+#include <dpkg/dir.h>
+#include <dpkg/options.h>
+#include <dpkg/triglib.h>
+#include <dpkg/db-ctrl.h>
+#include <dpkg/db-fsys.h>
+
+#include "main.h"
+
+/*
+ * pkgdepcheck may be a virtual pkg.
+ */
+static void checkforremoval(struct pkginfo *pkgtoremove,
+                            struct pkgset *pkgdepcheck,
+                            enum dep_check *rokp, struct varbuf *raemsgs)
+{
+  struct deppossi *possi;
+  struct pkginfo *depender;
+  enum dep_check ok;
+  struct varbuf_state raemsgs_state;
+
+  for (possi = pkgdepcheck->depended.installed; possi; possi = possi->rev_next) {
+    if (possi->up->type != dep_depends && possi->up->type != dep_predepends) continue;
+    depender= possi->up->up;
+    debug(dbg_depcon, "checking depending package '%s'",
+          pkg_name(depender, pnaw_always));
+    if (depender->status < PKG_STAT_UNPACKED)
+      continue;
+    if (ignore_depends(depender)) {
+      debug(dbg_depcon, "ignoring depending package '%s'",
+            pkg_name(depender, pnaw_always));
+      continue;
+    }
+    if (dependtry >= DEPEND_TRY_CYCLES) {
+      if (findbreakcycle(pkgtoremove))
+        sincenothing = 0;
+    }
+    varbuf_snapshot(raemsgs, &raemsgs_state);
+    ok= dependencies_ok(depender,pkgtoremove,raemsgs);
+    if (ok == DEP_CHECK_HALT &&
+        depender->clientdata &&
+        depender->clientdata->istobe == PKG_ISTOBE_REMOVE)
+      ok = DEP_CHECK_DEFER;
+    if (ok == DEP_CHECK_DEFER)
+      /* Don't burble about reasons for deferral. */
+      varbuf_rollback(&raemsgs_state);
+    if (ok < *rokp) *rokp= ok;
+  }
+}
+
+void deferred_remove(struct pkginfo *pkg) {
+  struct varbuf raemsgs = VARBUF_INIT;
+  struct dependency *dep;
+  enum dep_check rok;
+
+  debug(dbg_general, "deferred_remove package %s",
+        pkg_name(pkg, pnaw_always));
+
+  if (!f_pending && pkg->want != PKG_WANT_UNKNOWN) {
+    if (cipaction->arg_int == act_purge)
+      pkg_set_want(pkg, PKG_WANT_PURGE);
+    else
+      pkg_set_want(pkg, PKG_WANT_DEINSTALL);
+
+    if (!f_noact)
+      modstatdb_note(pkg);
+  }
+
+  ensure_package_clientdata(pkg);
+
+  if (pkg->status == PKG_STAT_NOTINSTALLED) {
+    sincenothing = 0;
+    warning(_("ignoring request to remove %.250s which isn't installed"),
+            pkg_name(pkg, pnaw_nonambig));
+    pkg->clientdata->istobe = PKG_ISTOBE_NORMAL;
+    return;
+  } else if (!f_pending &&
+             pkg->status == PKG_STAT_CONFIGFILES &&
+             cipaction->arg_int != act_purge) {
+    sincenothing = 0;
+    warning(_("ignoring request to remove %.250s, only the config\n"
+              " files of which are on the system; use --purge to remove them too"),
+            pkg_name(pkg, pnaw_nonambig));
+    pkg->clientdata->istobe = PKG_ISTOBE_NORMAL;
+    return;
+  }
+
+  if (pkg->status != PKG_STAT_CONFIGFILES) {
+    if (pkg->installed.essential)
+      forcibleerr(FORCE_REMOVE_ESSENTIAL,
+                  _("this is an essential package; it should not be removed"));
+    if (pkg->installed.is_protected)
+      forcibleerr(FORCE_REMOVE_PROTECTED,
+                  _("this is a protected package; it should not be removed"));
+  }
+
+  debug(dbg_general, "checking dependencies for remove '%s'",
+        pkg_name(pkg, pnaw_always));
+  rok = DEP_CHECK_OK;
+  checkforremoval(pkg, pkg->set, &rok, &raemsgs);
+  for (dep= pkg->installed.depends; dep; dep= dep->next) {
+    if (dep->type != dep_provides) continue;
+    debug(dbg_depcon, "checking virtual package '%s'", dep->list->ed->name);
+    checkforremoval(pkg, dep->list->ed, &rok, &raemsgs);
+  }
+
+  if (rok == DEP_CHECK_DEFER) {
+    varbuf_destroy(&raemsgs);
+    pkg->clientdata->istobe = PKG_ISTOBE_REMOVE;
+    enqueue_package(pkg);
+    return;
+  } else if (rok == DEP_CHECK_HALT) {
+    sincenothing= 0;
+    varbuf_end_str(&raemsgs);
+    notice(_("dependency problems prevent removal of %s:\n%s"),
+            pkg_name(pkg, pnaw_nonambig), raemsgs.buf);
+    ohshit(_("dependency problems - not removing"));
+  } else if (raemsgs.used) {
+    varbuf_end_str(&raemsgs);
+    notice(_("%s: dependency problems, but removing anyway as you requested:\n%s"),
+            pkg_name(pkg, pnaw_nonambig), raemsgs.buf);
+  }
+  varbuf_destroy(&raemsgs);
+  sincenothing= 0;
+
+  if (pkg->eflag & PKG_EFLAG_REINSTREQ)
+    forcibleerr(FORCE_REMOVE_REINSTREQ,
+                _("package is in a very bad inconsistent state; you should\n"
+                  " reinstall it before attempting a removal"));
+
+  ensure_allinstfiles_available();
+  fsys_hash_init();
+
+  if (f_noact) {
+    printf(_("Would remove or purge %s (%s) ...\n"),
+           pkg_name(pkg, pnaw_nonambig),
+           versiondescribe(&pkg->installed.version, vdew_nonambig));
+    pkg_set_status(pkg, PKG_STAT_NOTINSTALLED);
+    pkg->clientdata->istobe = PKG_ISTOBE_NORMAL;
+    return;
+  }
+
+  pkg_conffiles_mark_old(pkg);
+
+  /* Only print and log removal action once. This avoids duplication when
+   * using --remove and --purge in sequence. */
+  if (pkg->status > PKG_STAT_CONFIGFILES) {
+    printf(_("Removing %s (%s) ...\n"), pkg_name(pkg, pnaw_nonambig),
+           versiondescribe(&pkg->installed.version, vdew_nonambig));
+    log_action("remove", pkg, &pkg->installed);
+  }
+
+  trig_activate_packageprocessing(pkg);
+  if (pkg->status >= PKG_STAT_HALFCONFIGURED) {
+    static enum pkgstatus oldpkgstatus;
+
+    oldpkgstatus= pkg->status;
+    pkg_set_status(pkg, PKG_STAT_HALFCONFIGURED);
+    modstatdb_note(pkg);
+    push_cleanup(cu_prermremove, ~ehflag_normaltidy, 2,
+                 (void *)pkg, (void *)&oldpkgstatus);
+    maintscript_installed(pkg, PRERMFILE, "pre-removal", "remove", NULL);
+
+    /* Will turn into ‘half-installed’ soon ... */
+    pkg_set_status(pkg, PKG_STAT_UNPACKED);
+  }
+
+  removal_bulk(pkg);
+}
+
+static void
+push_leftover(struct fsys_namenode_list **leftoverp,
+              struct fsys_namenode *namenode)
+{
+  struct fsys_namenode_list *newentry;
+
+  newentry = nfmalloc(sizeof(*newentry));
+  newentry->next= *leftoverp;
+  newentry->namenode= namenode;
+  *leftoverp= newentry;
+}
+
+static void
+removal_bulk_remove_file(const char *filename, const char *filetype)
+{
+  /* We need the postrm and list files for --purge. */
+  if (strcmp(filetype, LISTFILE) == 0 ||
+      strcmp(filetype, POSTRMFILE) == 0)
+    return;
+
+  debug(dbg_stupidlyverbose, "removal_bulk info not postrm or list");
+
+  if (unlink(filename))
+    ohshite(_("unable to delete control info file '%.250s'"), filename);
+
+  debug(dbg_scripts, "removal_bulk info unlinked %s", filename);
+}
+
+static bool
+removal_bulk_file_is_shared(struct pkginfo *pkg, struct fsys_namenode *namenode)
+{
+  struct fsys_node_pkgs_iter *iter;
+  struct pkginfo *otherpkg;
+  bool shared = false;
+
+  if (pkgset_installed_instances(pkg->set) <= 1)
+    return false;
+
+  iter = fsys_node_pkgs_iter_new(namenode);
+  while ((otherpkg = fsys_node_pkgs_iter_next(iter))) {
+    if (otherpkg == pkg)
+      continue;
+    if (otherpkg->set != pkg->set)
+      continue;
+
+    debug(dbg_eachfiledetail, "removal_bulk file shared with %s, skipping",
+          pkg_name(otherpkg, pnaw_always));
+    shared = true;
+    break;
+  }
+  fsys_node_pkgs_iter_free(iter);
+
+  return shared;
+}
+
+static void
+removal_bulk_remove_files(struct pkginfo *pkg)
+{
+  struct fsys_hash_rev_iter rev_iter;
+  struct fsys_namenode_list *leftover;
+  struct fsys_namenode *namenode;
+  static struct varbuf fnvb;
+  struct varbuf_state fnvb_state;
+  struct stat stab;
+
+    pkg_set_status(pkg, PKG_STAT_HALFINSTALLED);
+    modstatdb_note(pkg);
+    push_checkpoint(~ehflag_bombout, ehflag_normaltidy);
+
+    fsys_hash_rev_iter_init(&rev_iter, pkg->files);
+    leftover = NULL;
+    while ((namenode = fsys_hash_rev_iter_next(&rev_iter))) {
+      struct fsys_namenode *usenode;
+      bool is_dir;
+
+      debug(dbg_eachfile, "removal_bulk '%s' flags=%o",
+            namenode->name, namenode->flags);
+
+      usenode = namenodetouse(namenode, pkg, &pkg->installed);
+
+      varbuf_set_str(&fnvb, dpkg_fsys_get_dir());
+      varbuf_add_str(&fnvb, usenode->name);
+      varbuf_end_str(&fnvb);
+      varbuf_snapshot(&fnvb, &fnvb_state);
+
+      is_dir = stat(fnvb.buf, &stab) == 0 && S_ISDIR(stab.st_mode);
+
+      /* A pkgset can share files between its instances that we
+       * don't want to remove, we just want to forget them. This
+       * applies to shared conffiles too. */
+      if (!is_dir && removal_bulk_file_is_shared(pkg, namenode))
+        continue;
+
+      /* Non-shared conffiles are kept. */
+      if (namenode->flags & FNNF_OLD_CONFF) {
+        push_leftover(&leftover, namenode);
+        continue;
+      }
+
+      if (is_dir) {
+        debug(dbg_eachfiledetail, "removal_bulk is a directory");
+        /* Only delete a directory or a link to one if we're the only
+         * package which uses it. Other files should only be listed
+         * in this package (but we don't check). */
+        if (dir_has_conffiles(namenode, pkg)) {
+	  push_leftover(&leftover,namenode);
+	  continue;
+	}
+        if (dir_is_used_by_pkg(namenode, pkg, leftover)) {
+          push_leftover(&leftover, namenode);
+          continue;
+        }
+        if (dir_is_used_by_others(namenode, pkg))
+          continue;
+
+        if (strcmp(usenode->name, "/.") == 0) {
+          debug(dbg_eachfiledetail,
+                "removal_bulk '%s' root directory, cannot remove", fnvb.buf);
+          push_leftover(&leftover, namenode);
+          continue;
+        }
+      }
+
+      trig_path_activate(usenode, pkg);
+
+      varbuf_rollback(&fnvb_state);
+      varbuf_add_str(&fnvb, DPKGTEMPEXT);
+      varbuf_end_str(&fnvb);
+      debug(dbg_eachfiledetail, "removal_bulk cleaning temp '%s'", fnvb.buf);
+      path_remove_tree(fnvb.buf);
+
+      varbuf_rollback(&fnvb_state);
+      varbuf_add_str(&fnvb, DPKGNEWEXT);
+      varbuf_end_str(&fnvb);
+      debug(dbg_eachfiledetail, "removal_bulk cleaning new '%s'", fnvb.buf);
+      path_remove_tree(fnvb.buf);
+
+      varbuf_rollback(&fnvb_state);
+      varbuf_end_str(&fnvb);
+
+      debug(dbg_eachfiledetail, "removal_bulk removing '%s'", fnvb.buf);
+      if (!rmdir(fnvb.buf) || errno == ENOENT || errno == ELOOP) continue;
+      if (errno == ENOTEMPTY || errno == EEXIST) {
+        debug(dbg_eachfiledetail,
+              "removal_bulk '%s' was not empty, will try again later",
+	      fnvb.buf);
+        push_leftover(&leftover,namenode);
+        continue;
+      } else if (errno == EBUSY || errno == EPERM) {
+        warning(_("while removing %.250s, unable to remove directory '%.250s': "
+                  "%s - directory may be a mount point?"),
+                pkg_name(pkg, pnaw_nonambig), namenode->name, strerror(errno));
+        push_leftover(&leftover,namenode);
+        continue;
+      }
+      if (errno != ENOTDIR)
+        ohshite(_("cannot remove '%.250s'"), fnvb.buf);
+      debug(dbg_eachfiledetail, "removal_bulk unlinking '%s'", fnvb.buf);
+      if (secure_unlink(fnvb.buf))
+        ohshite(_("unable to securely remove '%.250s'"), fnvb.buf);
+    }
+    write_filelist_except(pkg, &pkg->installed, leftover, 0);
+    maintscript_installed(pkg, POSTRMFILE, "post-removal", "remove", NULL);
+
+    trig_parse_ci(pkg_infodb_get_file(pkg, &pkg->installed, TRIGGERSCIFILE),
+                  trig_cicb_interest_delete, NULL, pkg, &pkg->installed);
+    trig_file_interests_save();
+
+    debug(dbg_general, "removal_bulk cleaning info directory");
+    pkg_infodb_foreach(pkg, &pkg->installed, removal_bulk_remove_file);
+    dir_sync_path(pkg_infodb_get_dir());
+
+    pkg_set_status(pkg, PKG_STAT_CONFIGFILES);
+    pkg->installed.essential = false;
+    pkg->installed.is_protected = false;
+    modstatdb_note(pkg);
+    push_checkpoint(~ehflag_bombout, ehflag_normaltidy);
+}
+
+static void removal_bulk_remove_leftover_dirs(struct pkginfo *pkg) {
+  struct fsys_hash_rev_iter rev_iter;
+  struct fsys_namenode_list *leftover;
+  struct fsys_namenode *namenode;
+  static struct varbuf fnvb;
+  struct stat stab;
+
+  /* We may have modified this previously. */
+  ensure_packagefiles_available(pkg);
+
+  modstatdb_note(pkg);
+  push_checkpoint(~ehflag_bombout, ehflag_normaltidy);
+
+  fsys_hash_rev_iter_init(&rev_iter, pkg->files);
+  leftover = NULL;
+  while ((namenode = fsys_hash_rev_iter_next(&rev_iter))) {
+    struct fsys_namenode *usenode;
+
+    debug(dbg_eachfile, "removal_bulk '%s' flags=%o",
+          namenode->name, namenode->flags);
+    if (namenode->flags & FNNF_OLD_CONFF) {
+      /* This can only happen if removal_bulk_remove_configfiles() got
+       * interrupted half way. */
+      debug(dbg_eachfiledetail, "removal_bulk expecting only left over dirs, "
+                                "ignoring conffile '%s'", namenode->name);
+      continue;
+    }
+
+    usenode = namenodetouse(namenode, pkg, &pkg->installed);
+
+    varbuf_set_str(&fnvb, dpkg_fsys_get_dir());
+    varbuf_add_str(&fnvb, usenode->name);
+    varbuf_end_str(&fnvb);
+
+    if (!stat(fnvb.buf,&stab) && S_ISDIR(stab.st_mode)) {
+      debug(dbg_eachfiledetail, "removal_bulk is a directory");
+      /* Only delete a directory or a link to one if we're the only
+       * package which uses it. Other files should only be listed
+       * in this package (but we don't check). */
+      if (dir_is_used_by_pkg(namenode, pkg, leftover)) {
+        push_leftover(&leftover, namenode);
+        continue;
+      }
+      if (dir_is_used_by_others(namenode, pkg))
+        continue;
+
+      if (strcmp(usenode->name, "/.") == 0) {
+        debug(dbg_eachfiledetail,
+              "removal_bulk '%s' root directory, cannot remove", fnvb.buf);
+        push_leftover(&leftover, namenode);
+        continue;
+      }
+    }
+
+    trig_path_activate(usenode, pkg);
+
+    debug(dbg_eachfiledetail, "removal_bulk removing '%s'", fnvb.buf);
+    if (!rmdir(fnvb.buf) || errno == ENOENT || errno == ELOOP) continue;
+    if (errno == ENOTEMPTY || errno == EEXIST) {
+      warning(_("while removing %.250s, directory '%.250s' not empty so not removed"),
+              pkg_name(pkg, pnaw_nonambig), namenode->name);
+      push_leftover(&leftover,namenode);
+      continue;
+    } else if (errno == EBUSY || errno == EPERM) {
+      warning(_("while removing %.250s, unable to remove directory '%.250s': "
+                "%s - directory may be a mount point?"),
+              pkg_name(pkg, pnaw_nonambig), namenode->name, strerror(errno));
+      push_leftover(&leftover,namenode);
+      continue;
+    }
+    if (errno != ENOTDIR)
+      ohshite(_("cannot remove '%.250s'"), fnvb.buf);
+
+    if (lstat(fnvb.buf, &stab) == 0 && S_ISLNK(stab.st_mode)) {
+      debug(dbg_eachfiledetail, "removal_bulk is a symlink to a directory");
+
+      if (unlink(fnvb.buf))
+        ohshite(_("cannot remove '%.250s'"), fnvb.buf);
+
+      continue;
+    }
+
+    push_leftover(&leftover,namenode);
+  }
+  write_filelist_except(pkg, &pkg->installed, leftover, 0);
+
+  modstatdb_note(pkg);
+  push_checkpoint(~ehflag_bombout, ehflag_normaltidy);
+}
+
+static void removal_bulk_remove_configfiles(struct pkginfo *pkg) {
+  static const char *const removeconffexts[] = { REMOVECONFFEXTS, NULL };
+  int rc;
+  int conffnameused, conffbasenamelen;
+  char *conffbasename;
+  struct conffile *conff, **lconffp;
+  struct fsys_namenode_list *searchfile;
+  DIR *dsd;
+  struct dirent *de;
+  char *p;
+  const char *const *ext;
+
+    printf(_("Purging configuration files for %s (%s) ...\n"),
+           pkg_name(pkg, pnaw_nonambig),
+           versiondescribe(&pkg->installed.version, vdew_nonambig));
+    log_action("purge", pkg, &pkg->installed);
+    trig_activate_packageprocessing(pkg);
+
+    /* We may have modified this above. */
+    ensure_packagefiles_available(pkg);
+
+    /* We're about to remove the configuration, so remove the note
+     * about which version it was ... */
+    dpkg_version_blank(&pkg->configversion);
+    modstatdb_note(pkg);
+
+    /* Remove from our list any conffiles that aren't ours any more or
+     * are involved in diversions, except if we are the package doing the
+     * diverting. */
+    for (lconffp = &pkg->installed.conffiles; (conff = *lconffp) != NULL; ) {
+      for (searchfile = pkg->files;
+           searchfile && strcmp(searchfile->namenode->name,conff->name);
+           searchfile= searchfile->next);
+      if (!searchfile) {
+        debug(dbg_conff, "removal_bulk conffile not ours any more '%s'",
+              conff->name);
+        *lconffp= conff->next;
+      } else if (searchfile->namenode->divert &&
+                 (searchfile->namenode->divert->camefrom ||
+                  (searchfile->namenode->divert->useinstead &&
+                   searchfile->namenode->divert->pkgset != pkg->set))) {
+        debug(dbg_conff, "removal_bulk conffile '%s' ignored due to diversion",
+              conff->name);
+        *lconffp= conff->next;
+      } else {
+        debug(dbg_conffdetail, "removal_bulk set to new conffile '%s'",
+              conff->name);
+        conff->hash = NEWCONFFILEFLAG;
+        lconffp= &conff->next;
+      }
+    }
+    modstatdb_note(pkg);
+
+    for (conff= pkg->installed.conffiles; conff; conff= conff->next) {
+      struct fsys_namenode *namenode, *usenode;
+    static struct varbuf fnvb, removevb;
+      struct varbuf_state removevb_state;
+
+      if (conff->obsolete) {
+	debug(dbg_conffdetail, "removal_bulk conffile obsolete %s",
+	      conff->name);
+      }
+      varbuf_reset(&fnvb);
+      rc = conffderef(pkg, &fnvb, conff->name);
+      debug(dbg_conffdetail, "removal_bulk conffile '%s' (= '%s')",
+            conff->name, rc == -1 ? "<rc == -1>" : fnvb.buf);
+      if (rc == -1)
+        continue;
+
+      namenode = fsys_hash_find_node(conff->name, FHFF_NONE);
+      usenode = namenodetouse(namenode, pkg, &pkg->installed);
+
+      trig_path_activate(usenode, pkg);
+
+      conffnameused = fnvb.used;
+      if (unlink(fnvb.buf) && errno != ENOENT && errno != ENOTDIR)
+        ohshite(_("cannot remove old config file '%.250s' (= '%.250s')"),
+                conff->name, fnvb.buf);
+      p= strrchr(fnvb.buf,'/'); if (!p) continue;
+      *p = '\0';
+      varbuf_reset(&removevb);
+      varbuf_add_dir(&removevb, fnvb.buf);
+      varbuf_end_str(&removevb);
+      varbuf_snapshot(&removevb, &removevb_state);
+
+      dsd= opendir(removevb.buf);
+      if (!dsd) {
+        int e=errno;
+        debug(dbg_conffdetail, "removal_bulk conffile no dsd %s %s",
+              fnvb.buf, strerror(e)); errno= e;
+        if (errno == ENOENT || errno == ENOTDIR) continue;
+        ohshite(_("cannot read config file directory '%.250s' (from '%.250s')"),
+                fnvb.buf, conff->name);
+      }
+      debug(dbg_conffdetail, "removal_bulk conffile cleaning dsd %s", fnvb.buf);
+      push_cleanup(cu_closedir, ~0, 1, (void *)dsd);
+      *p= '/';
+      conffbasenamelen= strlen(++p);
+      conffbasename= fnvb.buf+conffnameused-conffbasenamelen;
+      while ((de = readdir(dsd)) != NULL) {
+        debug(dbg_stupidlyverbose, "removal_bulk conffile dsd entry='%s'"
+              " conffbasename='%s' conffnameused=%d conffbasenamelen=%d",
+              de->d_name, conffbasename, conffnameused, conffbasenamelen);
+        if (strncmp(de->d_name, conffbasename, conffbasenamelen) == 0) {
+          debug(dbg_stupidlyverbose, "removal_bulk conffile dsd entry starts right");
+          for (ext= removeconffexts; *ext; ext++)
+            if (strcmp(*ext, de->d_name + conffbasenamelen) == 0)
+              goto yes_remove;
+          p= de->d_name+conffbasenamelen;
+          if (*p++ == '~') {
+            while (*p && c_isdigit(*p))
+              p++;
+            if (*p == '~' && !*++p) goto yes_remove;
+          }
+        }
+        debug(dbg_stupidlyverbose, "removal_bulk conffile dsd entry starts wrong");
+        if (de->d_name[0] == '#' &&
+            strncmp(de->d_name + 1, conffbasename, conffbasenamelen) == 0 &&
+            strcmp(de->d_name + 1 + conffbasenamelen, "#") == 0)
+          goto yes_remove;
+        debug(dbg_stupidlyverbose, "removal_bulk conffile dsd entry not it");
+        continue;
+      yes_remove:
+        varbuf_rollback(&removevb_state);
+        varbuf_add_str(&removevb, de->d_name);
+        varbuf_end_str(&removevb);
+        debug(dbg_conffdetail, "removal_bulk conffile dsd entry removing '%s'",
+              removevb.buf);
+        if (unlink(removevb.buf) && errno != ENOENT && errno != ENOTDIR)
+          ohshite(_("cannot remove old backup config file '%.250s' (of '%.250s')"),
+                  removevb.buf, conff->name);
+      }
+      pop_cleanup(ehflag_normaltidy); /* closedir */
+    }
+
+    /* Remove the conffiles from the file list file. */
+    write_filelist_except(pkg, &pkg->installed, pkg->files,
+                          FNNF_OLD_CONFF);
+
+    pkg->installed.conffiles = NULL;
+    modstatdb_note(pkg);
+
+    maintscript_installed(pkg, POSTRMFILE, "post-removal", "purge", NULL);
+}
+
+/*
+ * This is used both by deferred_remove() in this file, and at the end of
+ * process_archive() in archives.c if it needs to finish removing a
+ * conflicting package.
+ */
+void removal_bulk(struct pkginfo *pkg) {
+  bool foundpostrm;
+
+  debug(dbg_general, "removal_bulk package %s", pkg_name(pkg, pnaw_always));
+
+  if (pkg->status == PKG_STAT_HALFINSTALLED ||
+      pkg->status == PKG_STAT_UNPACKED) {
+    removal_bulk_remove_files(pkg);
+  }
+
+  foundpostrm = pkg_infodb_has_file(pkg, &pkg->installed, POSTRMFILE);
+
+  debug(dbg_general, "removal_bulk purging? foundpostrm=%d",foundpostrm);
+
+  if (!foundpostrm && !pkg->installed.conffiles) {
+    /* If there are no config files and no postrm script then we
+     * go straight into ‘purge’.  */
+    debug(dbg_general, "removal_bulk no postrm, no conffiles, purging");
+
+    pkg_set_want(pkg, PKG_WANT_PURGE);
+    dpkg_version_blank(&pkg->configversion);
+  } else if (pkg->want == PKG_WANT_PURGE) {
+    removal_bulk_remove_configfiles(pkg);
+  }
+
+  /* I.e., either of the two branches above. */
+  if (pkg->want == PKG_WANT_PURGE) {
+    const char *filename;
+
+    /* Retry empty directories, and warn on any leftovers that aren't. */
+    removal_bulk_remove_leftover_dirs(pkg);
+
+    filename = pkg_infodb_get_file(pkg, &pkg->installed, LISTFILE);
+    debug(dbg_general, "removal_bulk purge done, removing list '%s'",
+          filename);
+    if (unlink(filename) && errno != ENOENT)
+      ohshite(_("cannot remove old files list"));
+
+    filename = pkg_infodb_get_file(pkg, &pkg->installed, POSTRMFILE);
+    debug(dbg_general, "removal_bulk purge done, removing postrm '%s'",
+          filename);
+    if (unlink(filename) && errno != ENOENT)
+      ohshite(_("can't remove old postrm script"));
+
+    pkg_set_status(pkg, PKG_STAT_NOTINSTALLED);
+    pkg_set_want(pkg, PKG_WANT_UNKNOWN);
+
+    /* This will mess up reverse links, but if we follow them
+     * we won't go back because pkg->status is PKG_STAT_NOTINSTALLED. */
+    pkgbin_blank(&pkg->installed);
+  }
+
+  pkg_reset_eflags(pkg);
+  modstatdb_note(pkg);
+
+  debug(dbg_general, "removal done");
+}
diff --git a/src/main/script.c b/src/main/script.c
new file mode 100644
index 0000000..b4f369d
--- /dev/null
+++ b/src/main/script.c
@@ -0,0 +1,399 @@
+/*
+ * dpkg - main program for package management
+ * script.c - maintainer script routines
+ *
+ * Copyright © 1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2007-2014 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+#ifdef WITH_LIBSELINUX
+#include <selinux/selinux.h>
+#endif
+
+#include <dpkg/i18n.h>
+#include <dpkg/debug.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/pkg.h>
+#include <dpkg/subproc.h>
+#include <dpkg/command.h>
+#include <dpkg/triglib.h>
+#include <dpkg/db-ctrl.h>
+#include <dpkg/db-fsys.h>
+
+#include "main.h"
+
+void
+post_postinst_tasks(struct pkginfo *pkg, enum pkgstatus new_status)
+{
+	if (new_status < PKG_STAT_TRIGGERSAWAITED)
+		pkg_set_status(pkg, new_status);
+	else if (pkg->trigaw.head)
+		pkg_set_status(pkg, PKG_STAT_TRIGGERSAWAITED);
+	else if (pkg->trigpend_head)
+		pkg_set_status(pkg, PKG_STAT_TRIGGERSPENDING);
+	else
+		pkg_set_status(pkg, PKG_STAT_INSTALLED);
+	modstatdb_note(pkg);
+
+	debug(dbg_triggersdetail, "post_postinst_tasks - trig_incorporate");
+	trig_incorporate(modstatdb_get_status());
+}
+
+static void
+post_script_tasks(void)
+{
+	debug(dbg_triggersdetail, "post_script_tasks - ensure_diversions");
+	ensure_diversions();
+
+	debug(dbg_triggersdetail, "post_script_tasks - trig_incorporate");
+	trig_incorporate(modstatdb_get_status());
+}
+
+static void
+cu_post_script_tasks(int argc, void **argv)
+{
+	post_script_tasks();
+}
+
+static void
+setexecute(const char *path, struct stat *stab)
+{
+	if ((stab->st_mode & 0555) == 0555)
+		return;
+	if (!chmod(path, 0755))
+		return;
+	ohshite(_("unable to set execute permissions on '%.250s'"), path);
+}
+
+/**
+ * Returns the path to the script inside the chroot.
+ */
+static const char *
+maintscript_pre_exec(struct command *cmd)
+{
+	const char *instdir = dpkg_fsys_get_dir();
+	const char *admindir = dpkg_db_get_dir();
+	const char *changedir;
+	size_t instdirlen = strlen(instdir);
+
+	if (instdirlen > 0 && in_force(FORCE_SCRIPT_CHROOTLESS))
+		changedir = instdir;
+	else
+		changedir = "/";
+
+	if (instdirlen > 0 && !in_force(FORCE_SCRIPT_CHROOTLESS)) {
+		int rc;
+
+		if (strncmp(admindir, instdir, instdirlen) != 0)
+			ohshit(_("admindir must be inside instdir for dpkg to work properly"));
+		if (setenv("DPKG_ADMINDIR", admindir + instdirlen, 1) < 0)
+			ohshite(_("unable to setenv for subprocesses"));
+		if (setenv("DPKG_ROOT", "", 1) < 0)
+			ohshite(_("unable to setenv for subprocesses"));
+
+		rc = chroot(instdir);
+		if (rc && in_force(FORCE_NON_ROOT) && errno == EPERM)
+			ohshit(_("not enough privileges to change root "
+			         "directory with --force-not-root, consider "
+			         "using --force-script-chrootless?"));
+		else if (rc)
+			ohshite(_("failed to chroot to '%.250s'"), instdir);
+	}
+	/* Switch to a known good directory to give the maintainer script
+	 * a saner environment, also needed after the chroot(). */
+	if (chdir(changedir))
+		ohshite(_("failed to chdir to '%.255s'"), changedir);
+	if (debug_has_flag(dbg_scripts)) {
+		struct varbuf args = VARBUF_INIT;
+		const char **argv = cmd->argv;
+
+		while (*++argv) {
+			varbuf_add_char(&args, ' ');
+			varbuf_add_str(&args, *argv);
+		}
+		varbuf_end_str(&args);
+		debug(dbg_scripts, "fork/exec %s (%s )", cmd->filename,
+		      args.buf);
+		varbuf_destroy(&args);
+	}
+	if (instdirlen == 0 || in_force(FORCE_SCRIPT_CHROOTLESS))
+		return cmd->filename;
+
+	if (strlen(cmd->filename) < instdirlen)
+		internerr("maintscript name '%s' length < instdir length %zd",
+		          cmd->filename, instdirlen);
+
+	return cmd->filename + instdirlen;
+}
+
+/**
+ * Set a new security execution context for the maintainer script.
+ *
+ * Try to create a new execution context based on the current one and the
+ * specific maintainer script filename. If it's the same as the current
+ * one, use the given fallback.
+ */
+static int
+maintscript_set_exec_context(struct command *cmd)
+{
+#ifdef WITH_LIBSELINUX
+	return setexecfilecon(cmd->filename, "dpkg_script_t");
+#else
+	return 0;
+#endif
+}
+
+static int
+maintscript_exec(struct pkginfo *pkg, struct pkgbin *pkgbin,
+                 struct command *cmd, struct stat *stab, int warn)
+{
+	pid_t pid;
+	int rc;
+
+	setexecute(cmd->filename, stab);
+
+	push_cleanup(cu_post_script_tasks, ehflag_bombout, 0);
+
+	pid = subproc_fork();
+	if (pid == 0) {
+		char *pkg_count;
+		const char *maintscript_debug;
+
+		pkg_count = str_fmt("%d", pkgset_installed_instances(pkg->set));
+
+		maintscript_debug = debug_has_flag(dbg_scripts) ? "1" : "0";
+
+		if (setenv("DPKG_MAINTSCRIPT_PACKAGE", pkg->set->name, 1) ||
+		    setenv("DPKG_MAINTSCRIPT_PACKAGE_REFCOUNT", pkg_count, 1) ||
+		    setenv("DPKG_MAINTSCRIPT_ARCH", pkgbin->arch->name, 1) ||
+		    setenv("DPKG_MAINTSCRIPT_NAME", cmd->argv[0], 1) ||
+		    setenv("DPKG_MAINTSCRIPT_DEBUG", maintscript_debug, 1) ||
+		    setenv("DPKG_RUNNING_VERSION", PACKAGE_VERSION, 1))
+			ohshite(_("unable to setenv for maintainer script"));
+
+		cmd->filename = cmd->argv[0] = maintscript_pre_exec(cmd);
+
+		if (maintscript_set_exec_context(cmd) < 0)
+			ohshite(_("cannot set security execution context for "
+			          "maintainer script"));
+
+		command_exec(cmd);
+	}
+	subproc_signals_ignore(cmd->name);
+	rc = subproc_reap(pid, cmd->name, warn);
+	subproc_signals_restore();
+
+	pop_cleanup(ehflag_normaltidy);
+
+	return rc;
+}
+
+static int
+vmaintscript_installed(struct pkginfo *pkg, const char *scriptname,
+                       const char *desc, va_list args)
+{
+	struct command cmd;
+	const char *scriptpath;
+	struct stat stab;
+	char *buf;
+
+	scriptpath = pkg_infodb_get_file(pkg, &pkg->installed, scriptname);
+	m_asprintf(&buf, _("installed %s package %s script"),
+	           pkg_name(pkg, pnaw_nonambig), desc);
+
+	command_init(&cmd, scriptpath, buf);
+	command_add_arg(&cmd, scriptname);
+	command_add_argv(&cmd, args);
+
+	if (stat(scriptpath, &stab)) {
+		command_destroy(&cmd);
+
+		if (errno == ENOENT) {
+			debug(dbg_scripts,
+			      "vmaintscript_installed nonexistent %s",
+			      scriptname);
+			free(buf);
+			return 0;
+		}
+		ohshite(_("unable to stat %s '%.250s'"), buf, scriptpath);
+	}
+	maintscript_exec(pkg, &pkg->installed, &cmd, &stab, 0);
+
+	command_destroy(&cmd);
+	free(buf);
+
+	return 1;
+}
+
+/*
+ * All ...'s in maintscript_* are const char *'s.
+ */
+
+int
+maintscript_installed(struct pkginfo *pkg, const char *scriptname,
+                      const char *desc, ...)
+{
+	va_list args;
+	int rc;
+
+	va_start(args, desc);
+	rc = vmaintscript_installed(pkg, scriptname, desc, args);
+	va_end(args);
+
+	if (rc)
+		post_script_tasks();
+
+	return rc;
+}
+
+int
+maintscript_postinst(struct pkginfo *pkg, ...)
+{
+	va_list args;
+	int rc;
+
+	va_start(args, pkg);
+	rc = vmaintscript_installed(pkg, POSTINSTFILE, "post-installation", args);
+	va_end(args);
+
+	if (rc)
+		ensure_diversions();
+
+	return rc;
+}
+
+int
+maintscript_new(struct pkginfo *pkg, const char *scriptname,
+                const char *desc, const char *cidir, char *cidirrest, ...)
+{
+	struct command cmd;
+	struct stat stab;
+	va_list args;
+	char *buf;
+
+	strcpy(cidirrest, scriptname);
+	m_asprintf(&buf, _("new %s package %s script"),
+	           pkg_name(pkg, pnaw_nonambig), desc);
+
+	va_start(args, cidirrest);
+	command_init(&cmd, cidir, buf);
+	command_add_arg(&cmd, scriptname);
+	command_add_argv(&cmd, args);
+	va_end(args);
+
+	if (stat(cidir, &stab)) {
+		command_destroy(&cmd);
+
+		if (errno == ENOENT) {
+			debug(dbg_scripts,
+			      "maintscript_new nonexistent %s '%s'",
+			      scriptname, cidir);
+			free(buf);
+			return 0;
+		}
+		ohshite(_("unable to stat %s '%.250s'"), buf, cidir);
+	}
+	maintscript_exec(pkg, &pkg->available, &cmd, &stab, 0);
+
+	command_destroy(&cmd);
+	free(buf);
+	post_script_tasks();
+
+	return 1;
+}
+
+int
+maintscript_fallback(struct pkginfo *pkg,
+                     const char *scriptname, const char *desc,
+                     const char *cidir, char *cidirrest,
+                     const char *ifok, const char *iffallback)
+{
+	struct command cmd;
+	const char *oldscriptpath;
+	struct stat stab;
+	char *buf;
+
+	oldscriptpath = pkg_infodb_get_file(pkg, &pkg->installed, scriptname);
+	m_asprintf(&buf, _("old %s package %s script"),
+	           pkg_name(pkg, pnaw_nonambig), desc);
+
+	command_init(&cmd, oldscriptpath, buf);
+	command_add_args(&cmd, scriptname, ifok,
+	                 versiondescribe(&pkg->available.version, vdew_nonambig),
+	                 NULL);
+
+	if (stat(oldscriptpath, &stab)) {
+		if (errno == ENOENT) {
+			debug(dbg_scripts,
+			      "maintscript_fallback nonexistent %s '%s'",
+			      scriptname, oldscriptpath);
+			command_destroy(&cmd);
+			free(buf);
+			return 0;
+		}
+		warning(_("unable to stat %s '%.250s': %s"),
+		        cmd.name, oldscriptpath, strerror(errno));
+	} else {
+		if (!maintscript_exec(pkg, &pkg->installed, &cmd, &stab, SUBPROC_WARN)) {
+			command_destroy(&cmd);
+			free(buf);
+			post_script_tasks();
+			return 1;
+		}
+	}
+	notice(_("trying script from the new package instead ..."));
+
+	strcpy(cidirrest, scriptname);
+	m_asprintf(&buf, _("new %s package %s script"),
+	           pkg_name(pkg, pnaw_nonambig), desc);
+
+	command_destroy(&cmd);
+	command_init(&cmd, cidir, buf);
+	command_add_args(&cmd, scriptname, iffallback,
+	                 versiondescribe(&pkg->installed.version, vdew_nonambig),
+	                 versiondescribe(&pkg->available.version, vdew_nonambig),
+	                 NULL);
+
+	if (stat(cidir, &stab)) {
+		command_destroy(&cmd);
+
+		if (errno == ENOENT)
+			ohshit(_("there is no script in the new version of the package - giving up"));
+		else
+			ohshite(_("unable to stat %s '%.250s'"), buf, cidir);
+	}
+
+	maintscript_exec(pkg, &pkg->available, &cmd, &stab, 0);
+	notice(_("... it looks like that went OK"));
+
+	command_destroy(&cmd);
+	free(buf);
+	post_script_tasks();
+
+	return 1;
+}
diff --git a/src/main/select.c b/src/main/select.c
new file mode 100644
index 0000000..d71202e
--- /dev/null
+++ b/src/main/select.c
@@ -0,0 +1,244 @@
+/*
+ * dpkg - main program for package management
+ * select.c - by-hand (rather than dselect-based) package selection
+ *
+ * Copyright © 1995,1996 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2006, 2008-2015 Guillem Jover <guillem@debian.org>
+ * Copyright © 2011 Linaro Limited
+ * Copyright © 2011 Raphaël Hertzog <hertzog@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <fnmatch.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/c-ctype.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/pkg-array.h>
+#include <dpkg/pkg-show.h>
+#include <dpkg/pkg-spec.h>
+#include <dpkg/options.h>
+#include <dpkg/db-ctrl.h>
+#include <dpkg/db-fsys.h>
+
+#include "main.h"
+
+static void getsel1package(struct pkginfo *pkg) {
+  const char *pkgname;
+  int l;
+
+  if (pkg->want == PKG_WANT_UNKNOWN)
+    return;
+  pkgname = pkg_name(pkg, pnaw_nonambig);
+  l = strlen(pkgname);
+  l >>= 3;
+  l = 6 - l;
+  if (l < 1)
+    l = 1;
+  printf("%s%.*s%s\n", pkgname, l, "\t\t\t\t\t\t", pkg_want_name(pkg));
+}
+
+int
+getselections(const char *const *argv)
+{
+  struct pkg_array array;
+  struct pkginfo *pkg;
+  int i;
+
+  modstatdb_open(msdbrw_readonly);
+
+  pkg_array_init_from_hash(&array);
+  pkg_array_sort(&array, pkg_sorter_by_nonambig_name_arch);
+
+  if (!*argv) {
+    for (i = 0; i < array.n_pkgs; i++) {
+      pkg = array.pkgs[i];
+      if (pkg->status == PKG_STAT_NOTINSTALLED)
+        continue;
+      getsel1package(pkg);
+    }
+  } else {
+    const char *thisarg;
+
+    while ((thisarg= *argv++)) {
+      struct pkg_spec pkgspec;
+      int found;
+
+      found= 0;
+      pkg_spec_init(&pkgspec, PKG_SPEC_PATTERNS | PKG_SPEC_ARCH_WILDCARD);
+      pkg_spec_parse(&pkgspec, thisarg);
+
+      for (i = 0; i < array.n_pkgs; i++) {
+        pkg = array.pkgs[i];
+        if (!pkg_spec_match_pkg(&pkgspec, pkg, &pkg->installed))
+          continue;
+        getsel1package(pkg); found++;
+      }
+      if (!found)
+        notice(_("no packages found matching %s"), thisarg);
+
+      pkg_spec_destroy(&pkgspec);
+    }
+  }
+
+  m_output(stdout, _("<standard output>"));
+  m_output(stderr, _("<standard error>"));
+
+  pkg_array_destroy(&array);
+
+  modstatdb_shutdown();
+
+  return 0;
+}
+
+int
+setselections(const char *const *argv)
+{
+  enum modstatdb_rw msdbflags;
+  const struct namevalue *nv;
+  struct pkginfo *pkg;
+  int c, lno;
+  struct varbuf namevb = VARBUF_INIT;
+  struct varbuf selvb = VARBUF_INIT;
+  bool db_possibly_outdated = false;
+
+  if (*argv)
+    badusage(_("--%s takes no arguments"), cipaction->olong);
+
+  msdbflags = msdbrw_available_readonly;
+  if (f_noact)
+    msdbflags |= msdbrw_readonly;
+  else
+    msdbflags |= msdbrw_write;
+
+  modstatdb_open(msdbflags);
+  pkg_infodb_upgrade();
+
+  lno= 1;
+  for (;;) {
+    struct dpkg_error err;
+
+    do {
+      c = getchar();
+      if (c == '\n')
+        lno++;
+    } while (c != EOF && c_isspace(c));
+    if (c == EOF) break;
+    if (c == '#') {
+      do { c= getchar(); if (c == '\n') lno++; } while (c != EOF && c != '\n');
+      continue;
+    }
+
+    varbuf_reset(&namevb);
+    while (!c_isspace(c)) {
+      varbuf_add_char(&namevb, c);
+      c= getchar();
+      if (c == EOF)
+        ohshit(_("unexpected end of file in package name at line %d"), lno);
+      if (c == '\n') ohshit(_("unexpected end of line in package name at line %d"),lno);
+    }
+    varbuf_end_str(&namevb);
+
+    while (c != EOF && c_isspace(c)) {
+      c= getchar();
+      if (c == EOF)
+        ohshit(_("unexpected end of file after package name at line %d"), lno);
+      if (c == '\n') ohshit(_("unexpected end of line after package name at line %d"),lno);
+    }
+
+    varbuf_reset(&selvb);
+    while (c != EOF && !c_isspace(c)) {
+      varbuf_add_char(&selvb, c);
+      c= getchar();
+    }
+    varbuf_end_str(&selvb);
+
+    while (c != EOF && c != '\n') {
+      c= getchar();
+      if (!c_isspace(c))
+        ohshit(_("unexpected data after package and selection at line %d"),lno);
+    }
+    pkg = pkg_spec_parse_pkg(namevb.buf, &err);
+    if (pkg == NULL)
+      ohshit(_("illegal package name at line %d: %.250s"), lno, err.str);
+
+    if (!pkg_is_informative(pkg, &pkg->installed) &&
+        !pkg_is_informative(pkg, &pkg->available)) {
+      db_possibly_outdated = true;
+      warning(_("package not in status nor available database at line %d: %.250s"), lno, namevb.buf);
+      lno++;
+      continue;
+    }
+
+    nv = namevalue_find_by_name(wantinfos, selvb.buf);
+    if (nv == NULL)
+      ohshit(_("unknown wanted status at line %d: %.250s"), lno, selvb.buf);
+
+    pkg_set_want(pkg, nv->value);
+    if (c == EOF) break;
+    lno++;
+  }
+  if (ferror(stdin)) ohshite(_("read error on standard input"));
+  modstatdb_shutdown();
+  varbuf_destroy(&namevb);
+  varbuf_destroy(&selvb);
+
+  if (db_possibly_outdated)
+    warning(_("found unknown packages; this might mean the available database\n"
+              "is outdated, and needs to be updated through a frontend method;\n"
+              "please see the FAQ <https://wiki.debian.org/Teams/Dpkg/FAQ#set-selections>"));
+
+  return 0;
+}
+
+int
+clearselections(const char *const *argv)
+{
+  enum modstatdb_rw msdbflags;
+  struct pkg_hash_iter *iter;
+  struct pkginfo *pkg;
+
+  if (*argv)
+    badusage(_("--%s takes no arguments"), cipaction->olong);
+
+  if (f_noact)
+    msdbflags = msdbrw_readonly;
+  else
+    msdbflags = msdbrw_write;
+
+  modstatdb_open(msdbflags);
+  pkg_infodb_upgrade();
+
+  iter = pkg_hash_iter_new();
+  while ((pkg = pkg_hash_iter_next_pkg(iter))) {
+    if (!pkg->installed.essential &&
+        !pkg->installed.is_protected &&
+        pkg->want != PKG_WANT_UNKNOWN)
+      pkg_set_want(pkg, PKG_WANT_DEINSTALL);
+  }
+  pkg_hash_iter_free(iter);
+
+  modstatdb_shutdown();
+
+  return 0;
+}
+
diff --git a/src/main/trigproc.c b/src/main/trigproc.c
new file mode 100644
index 0000000..125eb02
--- /dev/null
+++ b/src/main/trigproc.c
@@ -0,0 +1,576 @@
+/*
+ * dpkg - main program for package management
+ * trigproc.c - trigger processing
+ *
+ * Copyright © 2007 Canonical Ltd
+ * written by Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2008-2014 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/stat.h>
+
+#include <fcntl.h>
+#include <stdlib.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/pkg.h>
+#include <dpkg/pkg-queue.h>
+#include <dpkg/db-ctrl.h>
+#include <dpkg/db-fsys.h>
+#include <dpkg/triglib.h>
+
+#include "main.h"
+
+/*
+ * Trigger processing algorithms:
+ *
+ *
+ * There is a separate queue (‘deferred trigproc list’) for triggers
+ * ‘relevant’ to what we just did; when we find something triggered ‘now’
+ * we add it to that queue (unless --no-triggers).
+ *
+ *
+ * We want to prefer configuring packages where possible to doing trigger
+ * processing, although it would be better to prefer trigger processing
+ * to cycle-breaking we need to do the latter first or we might generate
+ * artificial trigger cycles, but we always want to prefer trigger
+ * processing to dependency forcing. This is achieved as follows:
+ *
+ * Each time during configure processing where a package D is blocked by
+ * only (ie Depends unsatisfied but would be satisfied by) a t-awaiter W
+ * we make a note of (one of) W's t-pending, T. (Only the last such T.)
+ * (If --no-triggers and nonempty argument list and package isn't in
+ * argument list then we don't do this.)
+ *
+ * Each time in process_queue() where we increment dependtry, we instead
+ * see if we have encountered such a t-pending T. If we do and are in
+ * a trigger processing try, we trigproc T instead of incrementing
+ * dependtry and this counts as having done something so we reset
+ * sincenothing.
+ *
+ *
+ * For --triggers-only and --configure, we go through each thing in the
+ * argument queue (the enqueue_package queue) and check what its state is
+ * and if appropriate we trigproc it. If we didn't have a queue (or had
+ * just --pending) we search all triggers-pending packages and add them
+ * to the deferred trigproc list.
+ *
+ *
+ * Before quitting from most operations, we trigproc each package in the
+ * deferred trigproc list. This may (if not --no-triggers) of course add
+ * new things to the deferred trigproc list.
+ *
+ *
+ * Note that ‘we trigproc T’ must involve trigger cycle detection and
+ * also automatic setting of t-awaiters to t-pending or installed. In
+ * particular, we do cycle detection even for trigger processing in the
+ * configure dependtry loop (and it is OK to do it for explicitly
+ * specified packages from the command line arguments; duplicates are
+ * removed by packages.c:process_queue).
+ */
+
+/*========== Deferred trigger queue. ==========*/
+
+static struct pkg_queue deferred = PKG_QUEUE_INIT;
+
+static void
+trigproc_enqueue_deferred(struct pkginfo *pend)
+{
+	if (f_triggers < 0)
+		return;
+	ensure_package_clientdata(pend);
+	if (pend->clientdata->trigprocdeferred)
+		return;
+	pend->clientdata->trigprocdeferred = pkg_queue_push(&deferred, pend);
+	debug(dbg_triggers, "trigproc_enqueue_deferred pend=%s",
+	      pkg_name(pend, pnaw_always));
+}
+
+/**
+ * Populate the deferred trigger queue.
+ *
+ * When dpkg is called with a specific set of packages to act on, we might
+ * have packages pending trigger processing. But because there are frontends
+ * that do not perform a final «dpkg --configure --pending» call (i.e. apt),
+ * the system is left in a state with packages not fully installed.
+ *
+ * We have to populate the deferred trigger queue from the entire package
+ * database, so that we might try to do opportunistic trigger processing
+ * when going through the deferred trigger queue, because a fixed apt will
+ * not request the necessary processing anyway.
+ *
+ * XXX: This can be removed once apt is fixed in the next stable release.
+ */
+void
+trigproc_populate_deferred(void)
+{
+	struct pkg_hash_iter *iter;
+	struct pkginfo *pkg;
+
+	iter = pkg_hash_iter_new();
+	while ((pkg = pkg_hash_iter_next_pkg(iter))) {
+		if (!pkg->trigpend_head)
+			continue;
+
+		if (pkg->status != PKG_STAT_TRIGGERSAWAITED &&
+		    pkg->status != PKG_STAT_TRIGGERSPENDING)
+			continue;
+
+		if (pkg->want != PKG_WANT_INSTALL &&
+		    pkg->want != PKG_WANT_HOLD)
+			continue;
+
+		trigproc_enqueue_deferred(pkg);
+	}
+	pkg_hash_iter_free(iter);
+}
+
+void
+trigproc_run_deferred(void)
+{
+	jmp_buf ejbuf;
+
+	debug(dbg_triggers, "trigproc_run_deferred");
+	while (!pkg_queue_is_empty(&deferred)) {
+		struct pkginfo *pkg;
+
+		pkg  = pkg_queue_pop(&deferred);
+		if (!pkg)
+			continue;
+
+		if (setjmp(ejbuf)) {
+			pop_error_context(ehflag_bombout);
+			continue;
+		}
+		push_error_context_jump(&ejbuf, print_error_perpackage,
+		                        pkg_name(pkg, pnaw_nonambig));
+
+		ensure_package_clientdata(pkg);
+		pkg->clientdata->trigprocdeferred = NULL;
+		trigproc(pkg, TRIGPROC_TRY_DEFERRED);
+
+		pop_error_context(ehflag_normaltidy);
+	}
+}
+
+/*
+ * Called by modstatdb_note.
+ */
+void
+trig_activate_packageprocessing(struct pkginfo *pkg)
+{
+	debug(dbg_triggersdetail, "trigproc_activate_packageprocessing pkg=%s",
+	      pkg_name(pkg, pnaw_always));
+
+	trig_parse_ci(pkg_infodb_get_file(pkg, &pkg->installed, TRIGGERSCIFILE),
+	              NULL, trig_cicb_statuschange_activate,
+	              pkg, &pkg->installed);
+}
+
+/*========== Actual trigger processing. ==========*/
+
+struct trigcyclenode {
+	struct trigcyclenode *next;
+	struct trigcycleperpkg *pkgs;
+	struct pkginfo *then_processed;
+};
+
+struct trigcycleperpkg {
+	struct trigcycleperpkg *next;
+	struct pkginfo *pkg;
+	struct trigpend *then_trigs;
+};
+
+static bool tortoise_advance;
+static struct trigcyclenode *tortoise, *hare;
+
+void
+trigproc_reset_cycle(void)
+{
+	tortoise_advance = false;
+	tortoise = hare = NULL;
+}
+
+static bool
+tortoise_in_hare(struct pkginfo *processing_now,
+                 struct trigcycleperpkg *tortoise_pkg)
+{
+	const char *processing_now_name, *tortoise_name;
+	struct trigpend *hare_trig, *tortoise_trig;
+
+	processing_now_name = pkg_name(processing_now, pnaw_nonambig);
+	tortoise_name = pkg_name(tortoise_pkg->pkg, pnaw_nonambig);
+
+	debug(dbg_triggersdetail, "%s pnow=%s tortoise=%s", __func__,
+	      processing_now_name, tortoise_name);
+	for (tortoise_trig = tortoise_pkg->then_trigs;
+	     tortoise_trig;
+	     tortoise_trig = tortoise_trig->next) {
+		debug(dbg_triggersdetail,
+		      "%s pnow=%s tortoise=%s tortoisetrig=%s", __func__,
+		      processing_now_name, tortoise_name, tortoise_trig->name);
+
+		/* hare is now so we can just look up in the actual data. */
+		for (hare_trig = tortoise_pkg->pkg->trigpend_head;
+		     hare_trig;
+		     hare_trig = hare_trig->next) {
+			debug(dbg_triggersstupid, "%s pnow=%s tortoise=%s"
+			      " tortoisetrig=%s haretrig=%s", __func__,
+			      processing_now_name, tortoise_name,
+			      tortoise_trig->name, hare_trig->name);
+			if (strcmp(hare_trig->name, tortoise_trig->name) == 0)
+				break;
+		}
+
+		if (hare_trig == NULL) {
+			/* Not found in hare, yay! */
+			debug(dbg_triggersdetail, "%s pnow=%s tortoise=%s OK",
+			      __func__, processing_now_name, tortoise_name);
+			return false;
+		}
+	}
+
+	return true;
+}
+
+static struct trigcyclenode *
+trigproc_new_cyclenode(struct pkginfo *processing_now)
+{
+	struct trigcyclenode *tcn;
+	struct trigcycleperpkg *tcpp;
+	struct pkginfo *pkg;
+	struct pkg_hash_iter *iter;
+
+	tcn = nfmalloc(sizeof(*tcn));
+	tcn->pkgs = NULL;
+	tcn->next = NULL;
+	tcn->then_processed = processing_now;
+
+	iter = pkg_hash_iter_new();
+	while ((pkg = pkg_hash_iter_next_pkg(iter))) {
+		if (!pkg->trigpend_head)
+			continue;
+		tcpp = nfmalloc(sizeof(*tcpp));
+		tcpp->pkg = pkg;
+		tcpp->then_trigs = pkg->trigpend_head;
+		tcpp->next = tcn->pkgs;
+		tcn->pkgs = tcpp;
+	}
+	pkg_hash_iter_free(iter);
+
+	return tcn;
+}
+
+/*
+ * Returns package we are to give up on.
+ */
+static struct pkginfo *
+check_trigger_cycle(struct pkginfo *processing_now)
+{
+	struct trigcyclenode *tcn;
+	struct trigcycleperpkg *tortoise_pkg;
+	struct trigpend *tortoise_trig;
+	struct pkginfo *giveup;
+	const char *sep;
+
+	debug(dbg_triggers, "check_triggers_cycle pnow=%s",
+	      pkg_name(processing_now, pnaw_always));
+
+	tcn = trigproc_new_cyclenode(processing_now);
+
+	if (!hare) {
+		debug(dbg_triggersdetail, "check_triggers_cycle pnow=%s first",
+		      pkg_name(processing_now, pnaw_always));
+		hare = tortoise = tcn;
+		return NULL;
+	}
+
+	hare->next = tcn;
+	hare = hare->next;
+	if (tortoise_advance)
+		tortoise = tortoise->next;
+	tortoise_advance = !tortoise_advance;
+
+	/* Now we compare hare to tortoise.
+	 * We want to find a trigger pending in tortoise which is not in hare
+	 * if we find such a thing we have proved that hare isn't a superset
+	 * of tortoise and so that we haven't found a loop (yet). */
+	for (tortoise_pkg = tortoise->pkgs;
+	     tortoise_pkg;
+	     tortoise_pkg = tortoise_pkg->next) {
+		if (!tortoise_in_hare(processing_now, tortoise_pkg))
+			return NULL;
+	}
+	/* Oh dear. hare is a superset of tortoise. We are making no
+	 * progress. */
+	notice(_("cycle found while processing triggers:\n"
+	         " chain of packages whose triggers are or may be responsible:"));
+	sep = "  ";
+	for (tcn = tortoise; tcn; tcn = tcn->next) {
+		fprintf(stderr, "%s%s", sep,
+		        pkg_name(tcn->then_processed, pnaw_nonambig));
+		sep = " -> ";
+	}
+	fprintf(stderr, _("\n" " packages' pending triggers which are"
+	                  " or may be unresolvable:\n"));
+	for (tortoise_pkg = tortoise->pkgs;
+	     tortoise_pkg;
+	     tortoise_pkg = tortoise_pkg->next) {
+		fprintf(stderr, "  %s",
+		        pkg_name(tortoise_pkg->pkg, pnaw_nonambig));
+		sep = ": ";
+		for (tortoise_trig = tortoise_pkg->then_trigs;
+		     tortoise_trig;
+		     tortoise_trig = tortoise_trig->next) {
+			fprintf(stderr, "%s%s", sep, tortoise_trig->name);
+		}
+		fprintf(stderr, "\n");
+	}
+
+	/* We give up on the _earliest_ package involved. */
+	giveup = tortoise->pkgs->pkg;
+	debug(dbg_triggers, "check_triggers_cycle pnow=%s giveup=%s",
+	      pkg_name(processing_now, pnaw_always),
+	      pkg_name(giveup, pnaw_always));
+	if (giveup->status != PKG_STAT_TRIGGERSAWAITED &&
+	    giveup->status != PKG_STAT_TRIGGERSPENDING)
+		internerr("package %s in non-trigger state %s",
+		          pkg_name(giveup, pnaw_always),
+		          pkg_status_name(giveup));
+	giveup->clientdata->istobe = PKG_ISTOBE_NORMAL;
+	pkg_set_status(giveup, PKG_STAT_HALFCONFIGURED);
+	modstatdb_note(giveup);
+	print_error_perpackage(_("triggers looping, abandoned"),
+	                       pkg_name(giveup, pnaw_nonambig));
+
+	return giveup;
+}
+
+/*
+ * Does cycle checking. Doesn't mind if pkg has no triggers pending - in
+ * that case does nothing but fix up any stale awaiters.
+ */
+void
+trigproc(struct pkginfo *pkg, enum trigproc_type type)
+{
+	static struct varbuf namesarg;
+
+	struct varbuf depwhynot = VARBUF_INIT;
+
+	debug(dbg_triggers, "trigproc %s", pkg_name(pkg, pnaw_always));
+
+	ensure_package_clientdata(pkg);
+	if (pkg->clientdata->trigprocdeferred)
+		pkg->clientdata->trigprocdeferred->pkg = NULL;
+	pkg->clientdata->trigprocdeferred = NULL;
+
+	if (pkg->trigpend_head) {
+		struct pkginfo *gaveup;
+		struct trigpend *tp;
+		enum dep_check ok;
+
+		if (pkg->status != PKG_STAT_TRIGGERSPENDING &&
+		    pkg->status != PKG_STAT_TRIGGERSAWAITED)
+			internerr("package %s in non-trigger state %s",
+			          pkg_name(pkg, pnaw_always),
+			          pkg_status_name(pkg));
+
+		if (dependtry < DEPEND_TRY_TRIGGERS &&
+		    type == TRIGPROC_TRY_QUEUED) {
+			/* We are not yet in a triggers run, so postpone this
+			 * package completely. */
+			enqueue_package(pkg);
+			return;
+		}
+
+		if (dependtry >= DEPEND_TRY_CYCLES) {
+			if (findbreakcycle(pkg))
+				sincenothing = 0;
+		}
+
+		ok = dependencies_ok(pkg, NULL, &depwhynot);
+		if (ok == DEP_CHECK_DEFER) {
+			if (dependtry >= DEPEND_TRY_TRIGGERS_CYCLES) {
+				gaveup = check_trigger_cycle(pkg);
+				if (gaveup == pkg)
+					return;
+			}
+
+			varbuf_destroy(&depwhynot);
+			enqueue_package(pkg);
+			return;
+		} else if (ok == DEP_CHECK_HALT) {
+			/* When doing opportunistic deferred trigger processing,
+			 * nothing requires us to be able to make progress;
+			 * skip the package and silently ignore the error due
+			 * to unsatisfiable dependencies. And because we can
+			 * end up here repeatedly, if this package is required
+			 * to make progress for other packages, we need to
+			 * reset the trigger cycle tracking to avoid detecting
+			 * bogus cycles*/
+			if (type == TRIGPROC_TRY_DEFERRED) {
+				trigproc_reset_cycle();
+
+				varbuf_destroy(&depwhynot);
+				return;
+			}
+
+			sincenothing = 0;
+			varbuf_end_str(&depwhynot);
+			notice(_("dependency problems prevent processing "
+			         "triggers for %s:\n%s"),
+			       pkg_name(pkg, pnaw_nonambig), depwhynot.buf);
+			varbuf_destroy(&depwhynot);
+			ohshit(_("dependency problems - leaving triggers unprocessed"));
+		} else if (depwhynot.used) {
+			varbuf_end_str(&depwhynot);
+			notice(_("%s: dependency problems, but processing "
+			         "triggers anyway as you requested:\n%s"),
+			       pkg_name(pkg, pnaw_nonambig), depwhynot.buf);
+			varbuf_destroy(&depwhynot);
+		}
+
+		gaveup = check_trigger_cycle(pkg);
+		if (gaveup == pkg)
+			return;
+
+		printf(_("Processing triggers for %s (%s) ...\n"),
+		       pkg_name(pkg, pnaw_nonambig),
+		       versiondescribe(&pkg->installed.version, vdew_nonambig));
+		log_action("trigproc", pkg, &pkg->installed);
+
+		varbuf_reset(&namesarg);
+		for (tp = pkg->trigpend_head; tp; tp = tp->next) {
+			varbuf_add_char(&namesarg, ' ');
+			varbuf_add_str(&namesarg, tp->name);
+		}
+		varbuf_end_str(&namesarg);
+
+		/* Setting the status to half-configured
+		 * causes modstatdb_note to clear pending triggers. */
+		pkg_set_status(pkg, PKG_STAT_HALFCONFIGURED);
+		modstatdb_note(pkg);
+
+		if (!f_noact) {
+			sincenothing = 0;
+			maintscript_postinst(pkg, "triggered",
+			                     namesarg.buf + 1, NULL);
+		}
+
+		post_postinst_tasks(pkg, PKG_STAT_INSTALLED);
+	} else {
+		/* In other branch is done by modstatdb_note(), from inside
+		 * post_postinst_tasks(). */
+		trig_clear_awaiters(pkg);
+	}
+}
+
+/*========== Transitional global activation. ==========*/
+
+static void
+transitional_interest_callback_ro(const char *trig, struct pkginfo *pkg,
+                                  struct pkgbin *pkgbin, enum trig_options opts)
+{
+	struct pkginfo *pend = pkg;
+	struct pkgbin *pendbin = pkgbin;
+
+	debug(dbg_triggersdetail,
+	      "trig_transitional_interest_callback trig=%s pend=%s",
+	      trig, pkgbin_name(pend, pendbin, pnaw_always));
+	if (pend->status >= PKG_STAT_TRIGGERSAWAITED)
+		trig_note_pend(pend, nfstrsave(trig));
+}
+
+static void
+transitional_interest_callback(const char *trig, struct pkginfo *pkg,
+                               struct pkgbin *pkgbin, enum trig_options opts)
+{
+	struct pkginfo *pend = pkg;
+	struct pkgbin *pendbin = pkgbin;
+
+	trig_cicb_interest_add(trig, pend, pendbin, opts);
+	transitional_interest_callback_ro(trig, pend, pendbin, opts);
+}
+
+/*
+ * cstatus might be msdbrw_readonly if we're in --no-act mode, in which
+ * case we don't write out all of the interest files etc. but we do
+ * invent all of the activations for our own benefit.
+ */
+static void
+trig_transitional_activate(enum modstatdb_rw cstatus)
+{
+	struct pkg_hash_iter *iter;
+	struct pkginfo *pkg;
+
+	iter = pkg_hash_iter_new();
+	while ((pkg = pkg_hash_iter_next_pkg(iter))) {
+		if (pkg->status <= PKG_STAT_HALFINSTALLED)
+			continue;
+		debug(dbg_triggersdetail, "trig_transitional_activate %s %s",
+		      pkg_name(pkg, pnaw_always),
+		      pkg_status_name(pkg));
+		pkg->trigpend_head = NULL;
+		trig_parse_ci(pkg_infodb_get_file(pkg, &pkg->installed,
+		                                  TRIGGERSCIFILE),
+		              cstatus >= msdbrw_write ?
+		              transitional_interest_callback :
+		              transitional_interest_callback_ro, NULL,
+		              pkg, &pkg->installed);
+		/* Ensure we're not creating incoherent data that can't
+		 * be written down. This should never happen in theory but
+		 * can happen if you restore an old status file that is
+		 * not in sync with the infodb files. */
+		if (pkg->status < PKG_STAT_TRIGGERSAWAITED)
+			continue;
+
+		if (pkg->trigaw.head)
+			pkg_set_status(pkg, PKG_STAT_TRIGGERSAWAITED);
+		else if (pkg->trigpend_head)
+			pkg_set_status(pkg, PKG_STAT_TRIGGERSPENDING);
+		else
+			pkg_set_status(pkg, PKG_STAT_INSTALLED);
+	}
+	pkg_hash_iter_free(iter);
+
+	if (cstatus >= msdbrw_write) {
+		modstatdb_checkpoint();
+		trig_file_interests_save();
+	}
+}
+
+/*========== Hook setup. ==========*/
+
+TRIGHOOKS_DEFINE_NAMENODE_ACCESSORS
+
+static const struct trig_hooks trig_our_hooks = {
+	.enqueue_deferred = trigproc_enqueue_deferred,
+	.transitional_activate = trig_transitional_activate,
+	.namenode_find = th_nn_find,
+	.namenode_interested = th_nn_interested,
+	.namenode_name = th_nn_name,
+};
+
+void
+trigproc_install_hooks(void)
+{
+	trig_override_hooks(&trig_our_hooks);
+}
diff --git a/src/main/unpack.c b/src/main/unpack.c
new file mode 100644
index 0000000..02c2681
--- /dev/null
+++ b/src/main/unpack.c
@@ -0,0 +1,1734 @@
+/*
+ * dpkg - main program for package management
+ * unpack.c - .deb archive unpacking
+ *
+ * Copyright © 1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2006-2015 Guillem Jover <guillem@debian.org>
+ * Copyright © 2011 Linaro Limited
+ * Copyright © 2011 Raphaël Hertzog <hertzog@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+
+#include <errno.h>
+#include <string.h>
+#include <time.h>
+#include <utime.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <unistd.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/c-ctype.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/pkg.h>
+#include <dpkg/pkg-queue.h>
+#include <dpkg/path.h>
+#include <dpkg/command.h>
+#include <dpkg/buffer.h>
+#include <dpkg/subproc.h>
+#include <dpkg/dir.h>
+#include <dpkg/tarfn.h>
+#include <dpkg/options.h>
+#include <dpkg/db-ctrl.h>
+#include <dpkg/db-fsys.h>
+#include <dpkg/triglib.h>
+
+#include "file-match.h"
+#include "main.h"
+#include "archives.h"
+
+static const char *
+summarize_filename(const char *filename)
+{
+  const char *pfilename;
+  char *pfilenamebuf;
+
+  for (pfilename = filename;
+       pfilename && strlen(pfilename) > 30 && strchr(pfilename, '/') != NULL;
+       pfilename++)
+    pfilename = strchr(pfilename, '/');
+
+  if (pfilename && pfilename != filename) {
+    pfilenamebuf = nfmalloc(strlen(pfilename) + 5);
+    sprintf(pfilenamebuf, _(".../%s"), pfilename);
+    pfilename = pfilenamebuf;
+  } else {
+    pfilename = filename;
+  }
+
+  return pfilename;
+}
+
+static bool
+deb_reassemble(const char **filename, const char **pfilename)
+{
+  static char *reasmbuf = NULL;
+  struct stat stab;
+  int status;
+  pid_t pid;
+
+  if (!reasmbuf)
+    reasmbuf = dpkg_db_get_path(REASSEMBLETMP);
+  if (unlink(reasmbuf) && errno != ENOENT)
+    ohshite(_("error ensuring '%.250s' doesn't exist"), reasmbuf);
+
+  push_cleanup(cu_pathname, ~0, 1, (void *)reasmbuf);
+
+  pid = subproc_fork();
+  if (!pid) {
+    execlp(SPLITTER, SPLITTER, "-Qao", reasmbuf, *filename, NULL);
+    ohshite(_("unable to execute %s (%s)"),
+            _("split package reassembly"), SPLITTER);
+  }
+  status = subproc_reap(pid, SPLITTER, SUBPROC_RETERROR);
+  switch (status) {
+  case 0:
+    /* It was a part - is it complete? */
+    if (!stat(reasmbuf, &stab)) {
+      /* Yes. */
+      *filename = reasmbuf;
+      *pfilename = _("reassembled package file");
+      break;
+    } else if (errno == ENOENT) {
+      /* No. That's it, we skip it. */
+      return false;
+    }
+  case 1:
+    /* No, it wasn't a part. */
+    break;
+  default:
+    ohshit(_("subprocess %s returned error exit status %d"), SPLITTER, status);
+  }
+
+  return true;
+}
+
+static void
+deb_verify(const char *filename)
+{
+  pid_t pid;
+
+  /* We have to check on every unpack, in case the debsig-verify package
+   * gets installed or removed. */
+  if (!command_in_path(DEBSIGVERIFY))
+    return;
+
+  printf(_("Authenticating %s ...\n"), filename);
+  fflush(stdout);
+  pid = subproc_fork();
+  if (!pid) {
+    execlp(DEBSIGVERIFY, DEBSIGVERIFY, "-q", filename, NULL);
+    ohshite(_("unable to execute %s (%s)"),
+            _("package signature verification"), DEBSIGVERIFY);
+  } else {
+    int status;
+
+    status = subproc_reap(pid, "debsig-verify", SUBPROC_NOCHECK);
+    if (!(WIFEXITED(status) && WEXITSTATUS(status) == 0)) {
+      if (!in_force(FORCE_BAD_VERIFY))
+        ohshit(_("verification on package %s failed!"), filename);
+      else
+        notice(_("verification on package %s failed; "
+                 "but installing anyway as you requested"), filename);
+    } else {
+      printf(_("passed\n"));
+    }
+  }
+}
+
+static char *
+get_control_dir(char *cidir)
+{
+  if (f_noact) {
+    char *tmpdir;
+
+    tmpdir = mkdtemp(path_make_temp_template("dpkg"));
+    if (tmpdir == NULL)
+      ohshite(_("unable to create temporary directory"));
+
+    cidir = m_realloc(cidir, strlen(tmpdir) + MAXCONTROLFILENAME + 10);
+
+    strcpy(cidir, tmpdir);
+
+    free(tmpdir);
+  } else {
+    const char *admindir;
+
+    admindir = dpkg_db_get_dir();
+
+    /* The admindir length is always constant on a dpkg execution run. */
+    if (cidir == NULL)
+      cidir = m_malloc(strlen(admindir) + sizeof(CONTROLDIRTMP) +
+                       MAXCONTROLFILENAME + 10);
+
+    /* We want it to be on the same filesystem so that we can
+     * use rename(2) to install the postinst &c. */
+    strcpy(cidir, admindir);
+    strcat(cidir, "/" CONTROLDIRTMP);
+
+    /* Make sure the control information directory is empty. */
+    path_remove_tree(cidir);
+  }
+
+  strcat(cidir, "/");
+
+  return cidir;
+}
+
+static void
+pkg_check_depcon(struct pkginfo *pkg, const char *pfilename)
+{
+  struct dependency *dsearch;
+  struct deppossi *psearch;
+  struct pkginfo *fixbytrigaw;
+  static struct varbuf depprobwhy;
+
+  /* Check if anything is installed that we conflict with, or not installed
+   * that we need. */
+  ensure_package_clientdata(pkg);
+  pkg->clientdata->istobe = PKG_ISTOBE_INSTALLNEW;
+
+  for (dsearch = pkg->available.depends; dsearch; dsearch = dsearch->next) {
+    switch (dsearch->type) {
+    case dep_conflicts:
+      /* Look for things we conflict with. */
+      check_conflict(dsearch, pkg, pfilename);
+      break;
+    case dep_breaks:
+      /* Look for things we break. */
+      check_breaks(dsearch, pkg, pfilename);
+      break;
+    case dep_provides:
+      /* Look for things that conflict with what we provide. */
+      for (psearch = dsearch->list->ed->depended.installed;
+           psearch;
+           psearch = psearch->rev_next) {
+        if (psearch->up->type != dep_conflicts)
+          continue;
+        check_conflict(psearch->up, pkg, pfilename);
+      }
+      break;
+    case dep_suggests:
+    case dep_recommends:
+    case dep_depends:
+    case dep_replaces:
+    case dep_enhances:
+      /* Ignore these here. */
+      break;
+    case dep_predepends:
+      if (!depisok(dsearch, &depprobwhy, NULL, &fixbytrigaw, true)) {
+        if (fixbytrigaw) {
+          while (fixbytrigaw->trigaw.head)
+            trigproc(fixbytrigaw->trigaw.head->pend, TRIGPROC_REQUIRED);
+        } else {
+          varbuf_end_str(&depprobwhy);
+          notice(_("regarding %s containing %s, pre-dependency problem:\n%s"),
+                 pfilename, pkgbin_name(pkg, &pkg->available, pnaw_nonambig),
+                 depprobwhy.buf);
+          if (!force_depends(dsearch->list))
+            ohshit(_("pre-dependency problem - not installing %.250s"),
+                   pkgbin_name(pkg, &pkg->available, pnaw_nonambig));
+          warning(_("ignoring pre-dependency problem!"));
+        }
+      }
+    }
+  }
+
+  /* Look for things that conflict with us. */
+  for (psearch = pkg->set->depended.installed; psearch; psearch = psearch->rev_next) {
+    if (psearch->up->type != dep_conflicts)
+      continue;
+
+    check_conflict(psearch->up, pkg, pfilename);
+  }
+}
+
+static void
+pkg_deconfigure_others(struct pkginfo *pkg)
+{
+  struct pkg_deconf_list *deconpil;
+
+  for (deconpil = deconfigure; deconpil; deconpil = deconpil->next) {
+    struct pkginfo *removing = deconpil->pkg_removal;
+
+    if (deconpil->reason == PKG_WANT_DEINSTALL) {
+      printf(_("De-configuring %s (%s), to allow removal of %s (%s) ...\n"),
+             pkg_name(deconpil->pkg, pnaw_nonambig),
+             versiondescribe(&deconpil->pkg->installed.version, vdew_nonambig),
+             pkg_name(removing, pnaw_nonambig),
+             versiondescribe(&removing->installed.version, vdew_nonambig));
+    } else if (deconpil->reason == PKG_WANT_INSTALL) {
+      printf(_("De-configuring %s (%s), to allow installation of %s (%s) ...\n"),
+             pkg_name(deconpil->pkg, pnaw_nonambig),
+             versiondescribe(&deconpil->pkg->installed.version, vdew_nonambig),
+             pkg_name(pkg, pnaw_nonambig),
+             versiondescribe(&pkg->available.version, vdew_nonambig));
+    } else {
+      printf(_("De-configuring %s (%s), to allow configuration of %s (%s) ...\n"),
+             pkg_name(deconpil->pkg, pnaw_nonambig),
+             versiondescribe(&deconpil->pkg->installed.version, vdew_nonambig),
+             pkg_name(pkg, pnaw_nonambig),
+             versiondescribe(&pkg->available.version, vdew_nonambig));
+    }
+
+    trig_activate_packageprocessing(deconpil->pkg);
+    pkg_set_status(deconpil->pkg, PKG_STAT_HALFCONFIGURED);
+    modstatdb_note(deconpil->pkg);
+
+    /* This means that we *either* go and run postinst abort-deconfigure,
+     * *or* queue the package for later configure processing, depending
+     * on which error cleanup route gets taken. */
+    push_cleanup_fallback(cu_prermdeconfigure, ~ehflag_normaltidy,
+                          ok_prermdeconfigure, ehflag_normaltidy,
+                          3, (void *)deconpil->pkg, (void *)removing, (void *)pkg);
+
+    if (removing) {
+      maintscript_installed(deconpil->pkg, PRERMFILE, "pre-removal",
+                            "deconfigure", "in-favour",
+                            pkgbin_name(pkg, &pkg->available, pnaw_nonambig),
+                            versiondescribe(&pkg->available.version,
+                                            vdew_nonambig),
+                            "removing",
+                            pkg_name(removing, pnaw_nonambig),
+                            versiondescribe(&removing->installed.version,
+                                            vdew_nonambig),
+                            NULL);
+    } else {
+      maintscript_installed(deconpil->pkg, PRERMFILE, "pre-removal",
+                            "deconfigure", "in-favour",
+                            pkgbin_name(pkg, &pkg->available, pnaw_nonambig),
+                            versiondescribe(&pkg->available.version,
+                                            vdew_nonambig),
+                            NULL);
+    }
+  }
+}
+
+/**
+ * Read the conffiles, and copy the hashes across.
+ */
+static void
+deb_parse_conffiles(const struct pkginfo *pkg, const char *control_conffiles,
+                    struct fsys_namenode_queue *newconffiles)
+{
+  FILE *conff;
+  char conffilenamebuf[MAXCONFFILENAME];
+
+  conff = fopen(control_conffiles, "r");
+  if (conff == NULL) {
+    if (errno == ENOENT)
+      return;
+    ohshite(_("error trying to open %.250s"), control_conffiles);
+  }
+
+  push_cleanup(cu_closestream, ehflag_bombout, 1, conff);
+
+  while (fgets(conffilenamebuf, MAXCONFFILENAME - 2, conff)) {
+    struct pkginfo *otherpkg;
+    struct fsys_node_pkgs_iter *iter;
+    struct fsys_namenode *namenode;
+    struct fsys_namenode_list *newconff;
+    struct conffile *searchconff;
+    char *conffilename = conffilenamebuf;
+    char *p;
+    enum fsys_namenode_flags confflags = FNNF_NEW_CONFF;
+
+    p = conffilename + strlen(conffilename);
+    if (p == conffilename)
+      ohshit(_("conffile file contains an empty line"));
+    if (p[-1] != '\n')
+      ohshit(_("conffile name '%s' is too long, or missing final newline"),
+             conffilename);
+    p = str_rtrim_spaces(conffilename, p);
+    if (p == conffilename)
+      continue;
+
+    /* Check for conffile flags. */
+    if (conffilename[0] != '/') {
+      char *flag = conffilename;
+      char *flag_end = strchr(flag, ' ');
+
+      if (flag_end)
+        conffilename = flag_end + 1;
+
+      /* If no flag separator is found, assume a missing leading slash. */
+      if (flag_end == NULL || (conffilename[0] && conffilename[0] != '/'))
+        ohshit(_("conffile name '%s' is not an absolute pathname"), conffilename);
+
+      flag_end[0] = '\0';
+
+      /* Otherwise assume a missing filename after the flag separator. */
+      if (conffilename[0] == '\0')
+        ohshit(_("conffile name missing after flag '%s'"), flag);
+
+      if (strcmp(flag, "remove-on-upgrade") == 0) {
+        confflags |= FNNF_RM_CONFF_ON_UPGRADE;
+        confflags &= ~FNNF_NEW_CONFF;
+      } else {
+        if (c_isspace(flag[0]))
+          warning(_("line with conffile filename '%s' has leading white spaces"),
+                  conffilename);
+        ohshit(_("unknown flag '%s' for conffile '%s'"), flag, conffilename);
+      }
+    }
+
+    namenode = fsys_hash_find_node(conffilename, FHFF_NONE);
+    namenode->oldhash = NEWCONFFILEFLAG;
+    newconff = tar_fsys_namenode_queue_push(newconffiles, namenode);
+
+    /*
+     * Let's see if any packages have this file.
+     *
+     * If they do we check to see if they listed it as a conffile,
+     * and if they did we copy the hash across. Since (for plain
+     * file conffiles, which is the only kind we are supposed to
+     * have) there will only be one package which ‘has’ the file,
+     * this will usually mean we only look in the package which
+     * we are installing now.
+     *
+     * The ‘conffiles’ data in the status file is ignored when a
+     * package is not also listed in the file ownership database as
+     * having that file. If several packages are listed as owning
+     * the file we pick one at random.
+     */
+    searchconff = NULL;
+
+    iter = fsys_node_pkgs_iter_new(newconff->namenode);
+    while ((otherpkg = fsys_node_pkgs_iter_next(iter))) {
+      debug(dbg_conffdetail,
+            "process_archive conffile '%s' in package %s - conff ?",
+            newconff->namenode->name, pkg_name(otherpkg, pnaw_always));
+      for (searchconff = otherpkg->installed.conffiles;
+           searchconff && strcmp(newconff->namenode->name, searchconff->name);
+           searchconff = searchconff->next)
+        debug(dbg_conffdetail,
+              "process_archive conffile '%s' in package %s - conff ? not '%s'",
+              newconff->namenode->name, pkg_name(otherpkg, pnaw_always),
+              searchconff->name);
+      if (searchconff) {
+        debug(dbg_conff,
+              "process_archive conffile '%s' package=%s %s hash=%s",
+              newconff->namenode->name, pkg_name(otherpkg, pnaw_always),
+              otherpkg == pkg ? "same" : "different!",
+              searchconff->hash);
+        if (otherpkg == pkg)
+          break;
+      }
+    }
+    fsys_node_pkgs_iter_free(iter);
+
+    if (searchconff) {
+      /* We don't copy ‘obsolete’; it's not obsolete in the new package. */
+      newconff->namenode->oldhash = searchconff->hash;
+    } else {
+      debug(dbg_conff, "process_archive conffile '%s' no package, no hash",
+            newconff->namenode->name);
+    }
+    newconff->namenode->flags |= confflags;
+  }
+
+  if (ferror(conff))
+    ohshite(_("read error in %.250s"), control_conffiles);
+  pop_cleanup(ehflag_normaltidy); /* conff = fopen() */
+  if (fclose(conff))
+    ohshite(_("error closing %.250s"), control_conffiles);
+}
+
+static struct pkg_queue conflictors = PKG_QUEUE_INIT;
+
+void
+enqueue_conflictor(struct pkginfo *pkg)
+{
+  pkg_queue_push(&conflictors, pkg);
+}
+
+static void
+pkg_infodb_remove_file(const char *filename, const char *filetype)
+{
+  if (unlink(filename))
+    ohshite(_("unable to delete control info file '%.250s'"), filename);
+
+  debug(dbg_scripts, "removal_bulk info unlinked %s", filename);
+}
+
+static struct match_node *match_head = NULL;
+
+static void
+pkg_infodb_update_file(const char *filename, const char *filetype)
+{
+  if (strlen(filetype) > MAXCONTROLFILENAME)
+    ohshit(_("old version of package has overly-long info file name starting '%.250s'"),
+           filename);
+
+  /* We do the list separately. */
+  if (strcmp(filetype, LISTFILE) == 0)
+    return;
+
+  /* We keep files to rename in a list as doing the rename immediately
+   * might influence the current readdir(), the just renamed file might
+   * be returned a second time as it's actually a new file from the
+   * point of view of the filesystem. */
+  match_head = match_node_new(filename, filetype, match_head);
+}
+
+static void
+pkg_infodb_update(struct pkginfo *pkg, char *cidir, char *cidirrest)
+{
+  struct match_node *match_node;
+  DIR *dsd;
+  struct dirent *de;
+
+  /* Deallocate the match list in case we aborted previously. */
+  while ((match_node = match_head)) {
+    match_head = match_node->next;
+    match_node_free(match_node);
+  }
+
+  pkg_infodb_foreach(pkg, &pkg->available, pkg_infodb_update_file);
+
+  while ((match_node = match_head)) {
+    strcpy(cidirrest, match_node->filetype);
+
+    if (!rename(cidir, match_node->filename)) {
+      debug(dbg_scripts, "process_archive info installed %s as %s",
+            cidir, match_node->filename);
+    } else if (errno == ENOENT) {
+      /* Right, no new version. */
+      if (unlink(match_node->filename))
+        ohshite(_("unable to remove obsolete info file '%.250s'"),
+                match_node->filename);
+      debug(dbg_scripts, "process_archive info unlinked %s",
+            match_node->filename);
+    } else {
+      ohshite(_("unable to install (supposed) new info file '%.250s'"), cidir);
+    }
+    match_head = match_node->next;
+    match_node_free(match_node);
+  }
+
+  /* The control directory itself. */
+  cidirrest[0] = '\0';
+  dsd = opendir(cidir);
+  if (!dsd)
+    ohshite(_("unable to open temp control directory"));
+  push_cleanup(cu_closedir, ~0, 1, (void *)dsd);
+  while ((de = readdir(dsd))) {
+    const char *newinfofilename;
+
+    if (strchr(de->d_name, '.')) {
+      debug(dbg_scripts, "process_archive tmp.ci script/file '%s' contains dot",
+            de->d_name);
+      continue;
+    }
+    if (strlen(de->d_name) > MAXCONTROLFILENAME)
+      ohshit(_("package contains overly-long control info file name (starting '%.50s')"),
+             de->d_name);
+
+    strcpy(cidirrest, de->d_name);
+
+    /* First we check it's not a directory. */
+    if (rmdir(cidir) == 0)
+      ohshit(_("package control info contained directory '%.250s'"), cidir);
+    else if (errno != ENOTDIR)
+      ohshite(_("package control info rmdir of '%.250s' didn't say not a dir"),
+              de->d_name);
+
+    /* Ignore the control file. */
+    if (strcmp(de->d_name, CONTROLFILE) == 0) {
+      debug(dbg_scripts, "process_archive tmp.ci script/file '%s' is control",
+            cidir);
+      continue;
+    }
+    if (strcmp(de->d_name, LISTFILE) == 0) {
+      warning(_("package %s contained list as info file"),
+              pkgbin_name(pkg, &pkg->available, pnaw_nonambig));
+      continue;
+    }
+
+    /* Right, install it */
+    newinfofilename = pkg_infodb_get_file(pkg, &pkg->available, de->d_name);
+    if (rename(cidir, newinfofilename))
+      ohshite(_("unable to install new info file '%.250s' as '%.250s'"),
+              cidir, newinfofilename);
+
+    debug(dbg_scripts,
+          "process_archive tmp.ci script/file '%s' installed as '%s'",
+          cidir, newinfofilename);
+  }
+  pop_cleanup(ehflag_normaltidy); /* closedir */
+
+  /* If the old and new versions use a different infodb layout, get rid
+   * of the files using the old layout. */
+  if (pkg->installed.multiarch != pkg->available.multiarch &&
+      (pkg->installed.multiarch == PKG_MULTIARCH_SAME ||
+       pkg->available.multiarch == PKG_MULTIARCH_SAME)) {
+    debug(dbg_scripts,
+          "process_archive remove old info files after db layout switch");
+    pkg_infodb_foreach(pkg, &pkg->installed, pkg_infodb_remove_file);
+  }
+
+  dir_sync_path(pkg_infodb_get_dir());
+}
+
+static void
+pkg_remove_conffile_on_upgrade(struct pkginfo *pkg, struct fsys_namenode *namenode)
+{
+  struct pkginfo *otherpkg;
+  struct fsys_namenode *usenode;
+  struct fsys_node_pkgs_iter *iter;
+  struct varbuf cdr = VARBUF_INIT;
+  struct varbuf cdrext = VARBUF_INIT;
+  struct varbuf_state cdrext_state;
+  char currenthash[MD5HASHLEN + 1];
+  int rc;
+
+  usenode = namenodetouse(namenode, pkg, &pkg->installed);
+
+  rc = conffderef(pkg, &cdr, usenode->name);
+  if (rc == -1) {
+    debug(dbg_conffdetail, "%s: '%s' conffile dereference error: %s", __func__,
+          namenode->name, strerror(errno));
+    namenode->oldhash = EMPTYHASHFLAG;
+    return;
+  }
+
+  varbuf_set_varbuf(&cdrext, &cdr);
+  varbuf_snapshot(&cdrext, &cdrext_state);
+
+  iter = fsys_node_pkgs_iter_new(namenode);
+  while ((otherpkg = fsys_node_pkgs_iter_next(iter))) {
+    debug(dbg_conffdetail, "%s: namenode '%s' owned by other %s?",
+          __func__, namenode->name, pkg_name(otherpkg, pnaw_always));
+
+    if (otherpkg == pkg)
+      continue;
+
+    debug(dbg_conff, "%s: namenode '%s' owned by other %s, remove-on-upgrade ignored",
+         __func__, namenode->name, pkg_name(otherpkg, pnaw_always));
+    fsys_node_pkgs_iter_free(iter);
+    return;
+  }
+  fsys_node_pkgs_iter_free(iter);
+
+  /* Remove DPKGDISTEXT variant if still present. */
+  varbuf_rollback(&cdrext_state);
+  varbuf_add_str(&cdrext, DPKGDISTEXT);
+  varbuf_end_str(&cdrext);
+
+  if (unlink(cdrext.buf) < 0 && errno != ENOENT)
+    warning(_("%s: failed to remove '%.250s': %s"),
+            pkg_name(pkg, pnaw_nonambig), cdrext.buf,
+            strerror(errno));
+
+  md5hash(pkg, currenthash, cdr.buf);
+
+  /* Has it been already removed (e.g. by local admin)? */
+  if (strcmp(currenthash, NONEXISTENTFLAG) == 0)
+    return;
+
+  /* For unmodified conffiles, we just remove them. */
+  if (strcmp(currenthash, namenode->oldhash) == 0) {
+    printf(_("Removing obsolete conffile %s ...\n"), cdr.buf);
+    if (unlink(cdr.buf) < 0 && errno != ENOENT)
+      warning(_("%s: failed to remove '%.250s': %s"),
+              pkg_name(pkg, pnaw_nonambig), cdr.buf, strerror(errno));
+    return;
+  }
+
+  /* Otherwise, preserve the modified conffile. */
+  varbuf_rollback(&cdrext_state);
+  varbuf_add_str(&cdrext, DPKGOLDEXT);
+  varbuf_end_str(&cdrext);
+
+  printf(_("Obsolete conffile '%s' has been modified by you.\n"), cdr.buf);
+  printf(_("Saving as %s ...\n"), cdrext.buf);
+  if (rename(cdr.buf, cdrext.buf) < 0)
+    warning(_("%s: cannot rename obsolete conffile '%s' to '%s': %s"),
+            pkg_name(pkg, pnaw_nonambig),
+            cdr.buf, cdrext.buf, strerror(errno));
+}
+
+static void
+pkg_remove_old_files(struct pkginfo *pkg,
+                     struct fsys_namenode_queue *newfiles_queue,
+                     struct fsys_namenode_queue *newconffiles)
+{
+  struct fsys_hash_rev_iter rev_iter;
+  struct fsys_namenode_list *cfile;
+  struct fsys_namenode *namenode;
+  struct stat stab, oldfs;
+
+  /* Before removing any old files, we try to remove obsolete conffiles that
+   * have been requested to be removed during upgrade. These conffiles are
+   * not tracked as part of the package file lists, so removing them here
+   * means we will get their parent directories removed if not present in the
+   * new package without needing to do anything special ourselves. */
+  for (cfile = newconffiles->head; cfile; cfile = cfile->next) {
+    debug(dbg_conffdetail, "%s: removing conffile '%s' for %s?", __func__,
+          cfile->namenode->name, pkg_name(pkg, pnaw_always));
+
+    if (!(cfile->namenode->flags & FNNF_RM_CONFF_ON_UPGRADE))
+      continue;
+
+    pkg_remove_conffile_on_upgrade(pkg, cfile->namenode);
+  }
+
+  fsys_hash_rev_iter_init(&rev_iter, pkg->files);
+
+  while ((namenode = fsys_hash_rev_iter_next(&rev_iter))) {
+    struct fsys_namenode *usenode;
+
+    if ((namenode->flags & FNNF_NEW_CONFF) ||
+        (namenode->flags & FNNF_RM_CONFF_ON_UPGRADE) ||
+        (namenode->flags & FNNF_NEW_INARCHIVE))
+      continue;
+
+    usenode = namenodetouse(namenode, pkg, &pkg->installed);
+
+    varbuf_rollback(&fname_state);
+    varbuf_add_str(&fnamevb, usenode->name);
+    varbuf_end_str(&fnamevb);
+
+    if (!stat(fnamevb.buf, &stab) && S_ISDIR(stab.st_mode)) {
+      debug(dbg_eachfiledetail, "process_archive: %s is a directory",
+            fnamevb.buf);
+      if (dir_is_used_by_others(namenode, pkg))
+        continue;
+    }
+
+    if (lstat(fnamevb.buf, &oldfs)) {
+      if (!(errno == ENOENT || errno == ELOOP || errno == ENOTDIR))
+        warning(_("could not stat old file '%.250s' so not deleting it: %s"),
+                fnamevb.buf, strerror(errno));
+      continue;
+    }
+    if (S_ISDIR(oldfs.st_mode)) {
+      trig_path_activate(usenode, pkg);
+
+      /* Do not try to remove the root directory. */
+      if (strcmp(usenode->name, "/.") == 0)
+        continue;
+
+      if (rmdir(fnamevb.buf)) {
+        warning(_("unable to delete old directory '%.250s': %s"),
+                namenode->name, strerror(errno));
+      } else if ((namenode->flags & FNNF_OLD_CONFF)) {
+        warning(_("old conffile '%.250s' was an empty directory "
+                  "(and has now been deleted)"), namenode->name);
+      }
+    } else {
+      struct fsys_namenode_list *sameas = NULL;
+      static struct file_ondisk_id empty_ondisk_id;
+      struct varbuf cfilename = VARBUF_INIT;
+
+      /*
+       * Ok, it's an old file, but is it really not in the new package?
+       * It might be known by a different name because of symlinks.
+       *
+       * We need to check to make sure, so we stat the file, then compare
+       * it to the new list. If we find a dev/inode match, we assume they
+       * are the same file, and leave it alone. NOTE: we don't check in
+       * other packages for sanity reasons (we don't want to stat _all_
+       * the files on the system).
+       *
+       * We run down the list of _new_ files in this package. This keeps
+       * the process a little leaner. We are only worried about new ones
+       * since ones that stayed the same don't really apply here.
+       */
+
+      /* If we can't stat the old or new file, or it's a directory,
+       * we leave it up to the normal code. */
+      debug(dbg_eachfile, "process_archive: checking %s for same files on "
+            "upgrade/downgrade", fnamevb.buf);
+
+      for (cfile = newfiles_queue->head; cfile; cfile = cfile->next) {
+        /* If the file has been filtered then treat it as if it didn't exist
+         * on the file system. */
+        if (cfile->namenode->flags & FNNF_FILTERED)
+          continue;
+
+        if (cfile->namenode->file_ondisk_id == NULL) {
+          struct stat tmp_stat;
+
+          varbuf_set_str(&cfilename, dpkg_fsys_get_dir());
+          varbuf_add_str(&cfilename, cfile->namenode->name);
+          varbuf_end_str(&cfilename);
+
+          if (lstat(cfilename.buf, &tmp_stat) == 0) {
+            struct file_ondisk_id *file_ondisk_id;
+
+            file_ondisk_id = nfmalloc(sizeof(*file_ondisk_id));
+            file_ondisk_id->id_dev = tmp_stat.st_dev;
+            file_ondisk_id->id_ino = tmp_stat.st_ino;
+            cfile->namenode->file_ondisk_id = file_ondisk_id;
+          } else {
+            if (!(errno == ENOENT || errno == ELOOP || errno == ENOTDIR))
+              ohshite(_("unable to stat other new file '%.250s'"),
+                      cfile->namenode->name);
+            cfile->namenode->file_ondisk_id = &empty_ondisk_id;
+            continue;
+          }
+        }
+
+        if (cfile->namenode->file_ondisk_id == &empty_ondisk_id)
+          continue;
+
+        if (oldfs.st_dev == cfile->namenode->file_ondisk_id->id_dev &&
+            oldfs.st_ino == cfile->namenode->file_ondisk_id->id_ino) {
+          if (sameas)
+            warning(_("old file '%.250s' is the same as several new files! "
+                      "(both '%.250s' and '%.250s')"), fnamevb.buf,
+                    sameas->namenode->name, cfile->namenode->name);
+          sameas = cfile;
+          debug(dbg_eachfile, "process_archive: not removing %s, "
+                "since it matches %s", fnamevb.buf, cfile->namenode->name);
+        }
+      }
+
+      varbuf_destroy(&cfilename);
+
+      if ((namenode->flags & FNNF_OLD_CONFF)) {
+        if (sameas) {
+          if (sameas->namenode->flags & FNNF_NEW_CONFF) {
+            if (strcmp(sameas->namenode->oldhash, NEWCONFFILEFLAG) == 0) {
+              sameas->namenode->oldhash = namenode->oldhash;
+              debug(dbg_eachfile, "process_archive: old conff %s "
+                    "is same as new conff %s, copying hash",
+                    namenode->name, sameas->namenode->name);
+            } else {
+              debug(dbg_eachfile, "process_archive: old conff %s "
+                    "is same as new conff %s but latter already has hash",
+                    namenode->name, sameas->namenode->name);
+            }
+          }
+        } else {
+          debug(dbg_eachfile, "process_archive: old conff %s "
+                "is disappearing", namenode->name);
+          namenode->flags |= FNNF_OBS_CONFF;
+          tar_fsys_namenode_queue_push(newconffiles, namenode);
+          tar_fsys_namenode_queue_push(newfiles_queue, namenode);
+        }
+        continue;
+      }
+
+      if (sameas)
+        continue;
+
+      trig_path_activate(usenode, pkg);
+
+      if (secure_unlink_statted(fnamevb.buf, &oldfs)) {
+        warning(_("unable to securely remove old file '%.250s': %s"),
+                namenode->name, strerror(errno));
+      }
+    } /* !S_ISDIR */
+  }
+}
+
+static void
+pkg_update_fields(struct pkginfo *pkg, struct fsys_namenode_queue *newconffiles)
+{
+  struct dependency *newdeplist, **newdeplistlastp;
+  struct dependency *dep;
+  struct conffile **iconffileslastp, *newiconff;
+  struct fsys_namenode_list *cfile;
+
+  /* The dependencies are the most difficult. We have to build
+   * a whole new forward dependency tree. At least the reverse
+   * links (linking our deppossi's into the reverse chains)
+   * can be done by copy_dependency_links. */
+  newdeplist = NULL;
+  newdeplistlastp = &newdeplist;
+  for (dep = pkg->available.depends; dep; dep = dep->next) {
+    struct deppossi **newpossilastp, *possi;
+    struct dependency *newdep;
+
+    newdep = nfmalloc(sizeof(*newdep));
+    newdep->up = pkg;
+    newdep->next = NULL;
+    newdep->list = NULL;
+    newpossilastp = &newdep->list;
+
+    for (possi = dep->list; possi; possi = possi->next) {
+      struct deppossi *newpossi;
+
+      newpossi = nfmalloc(sizeof(*newpossi));
+      newpossi->up = newdep;
+      newpossi->ed = possi->ed;
+      newpossi->next = NULL;
+      newpossi->rev_next = newpossi->rev_prev = NULL;
+      newpossi->arch_is_implicit = possi->arch_is_implicit;
+      newpossi->arch = possi->arch;
+      newpossi->verrel = possi->verrel;
+      if (possi->verrel != DPKG_RELATION_NONE)
+        newpossi->version = possi->version;
+      else
+        dpkg_version_blank(&newpossi->version);
+      newpossi->cyclebreak = false;
+      *newpossilastp = newpossi;
+      newpossilastp = &newpossi->next;
+    }
+    newdep->type = dep->type;
+    *newdeplistlastp = newdep;
+    newdeplistlastp = &newdep->next;
+  }
+
+  /* Right, now we've replicated the forward tree, we
+   * get copy_dependency_links to remove all the old dependency
+   * structures from the reverse links and add the new dependency
+   * structures in instead. It also copies the new dependency
+   * structure pointer for this package into the right field. */
+  copy_dependency_links(pkg, &pkg->installed.depends, newdeplist, 0);
+
+  /* We copy the text fields. */
+  pkg->installed.essential = pkg->available.essential;
+  pkg->installed.is_protected = pkg->available.is_protected;
+  pkg->installed.multiarch = pkg->available.multiarch;
+  pkg->installed.description = pkg->available.description;
+  pkg->installed.maintainer = pkg->available.maintainer;
+  pkg->installed.source = pkg->available.source;
+  pkg->installed.arch = pkg->available.arch;
+  pkg->installed.pkgname_archqual = pkg->available.pkgname_archqual;
+  pkg->installed.installedsize = pkg->available.installedsize;
+  pkg->installed.version = pkg->available.version;
+  pkg->installed.origin = pkg->available.origin;
+  pkg->installed.bugs = pkg->available.bugs;
+
+  /* We have to generate our own conffiles structure. */
+  pkg->installed.conffiles = NULL;
+  iconffileslastp = &pkg->installed.conffiles;
+  for (cfile = newconffiles->head; cfile; cfile = cfile->next) {
+    newiconff = nfmalloc(sizeof(*newiconff));
+    newiconff->next = NULL;
+    newiconff->name = nfstrsave(cfile->namenode->name);
+    newiconff->hash = nfstrsave(cfile->namenode->oldhash);
+    newiconff->obsolete = !!(cfile->namenode->flags & FNNF_OBS_CONFF);
+    newiconff->remove_on_upgrade = !!(
+        cfile->namenode->flags & FNNF_RM_CONFF_ON_UPGRADE);
+    *iconffileslastp = newiconff;
+    iconffileslastp = &newiconff->next;
+  }
+
+  /* We can just copy the arbitrary fields list, because it is
+   * never even rearranged. Phew! */
+  pkg->installed.arbs = pkg->available.arbs;
+}
+
+static void
+pkg_disappear(struct pkginfo *pkg, struct pkginfo *infavour)
+{
+  printf(_("(Noting disappearance of %s, which has been completely replaced.)\n"),
+         pkg_name(pkg, pnaw_nonambig));
+  log_action("disappear", pkg, &pkg->installed);
+  debug(dbg_general, "pkg_disappear disappearing %s",
+        pkg_name(pkg, pnaw_always));
+
+  trig_activate_packageprocessing(pkg);
+  maintscript_installed(pkg, POSTRMFILE,
+                        "post-removal script (for disappearance)",
+                        "disappear",
+                        pkgbin_name(infavour, &infavour->available,
+                                    pnaw_nonambig),
+                        versiondescribe(&infavour->available.version,
+                                        vdew_nonambig),
+                        NULL);
+
+  /* OK, now we delete all the stuff in the ‘info’ directory ... */
+  debug(dbg_general, "pkg_disappear cleaning info directory");
+  pkg_infodb_foreach(pkg, &pkg->installed, pkg_infodb_remove_file);
+  dir_sync_path(pkg_infodb_get_dir());
+
+  pkg_set_status(pkg, PKG_STAT_NOTINSTALLED);
+  pkg_set_want(pkg, PKG_WANT_UNKNOWN);
+  pkg_reset_eflags(pkg);
+
+  dpkg_version_blank(&pkg->configversion);
+  pkgbin_blank(&pkg->installed);
+
+  pkg->files_list_valid = false;
+
+  modstatdb_note(pkg);
+}
+
+static void
+pkg_disappear_others(struct pkginfo *pkg)
+{
+  struct pkg_hash_iter *iter;
+  struct pkginfo *otherpkg;
+  struct fsys_namenode_list *cfile;
+  struct deppossi *pdep;
+  struct dependency *providecheck;
+  struct varbuf depprobwhy = VARBUF_INIT;
+
+  iter = pkg_hash_iter_new();
+  while ((otherpkg = pkg_hash_iter_next_pkg(iter)) != NULL) {
+    ensure_package_clientdata(otherpkg);
+
+    if (otherpkg == pkg ||
+        otherpkg->status == PKG_STAT_NOTINSTALLED ||
+        otherpkg->status == PKG_STAT_CONFIGFILES ||
+        otherpkg->clientdata->istobe == PKG_ISTOBE_REMOVE ||
+        !otherpkg->files)
+      continue;
+
+    /* Do not try to disappear other packages from the same set
+     * if they are Multi-Arch: same */
+    if (pkg->installed.multiarch == PKG_MULTIARCH_SAME &&
+        otherpkg->installed.multiarch == PKG_MULTIARCH_SAME &&
+        otherpkg->set == pkg->set)
+      continue;
+
+    debug(dbg_veryverbose, "process_archive checking disappearance %s",
+          pkg_name(otherpkg, pnaw_always));
+
+    if (otherpkg->clientdata->istobe != PKG_ISTOBE_NORMAL &&
+        otherpkg->clientdata->istobe != PKG_ISTOBE_DECONFIGURE)
+      internerr("disappearing package %s is not to be normal or deconfigure, "
+                "is to be %d",
+                pkg_name(otherpkg, pnaw_always), otherpkg->clientdata->istobe);
+
+    for (cfile = otherpkg->files;
+         cfile && strcmp(cfile->namenode->name, "/.") == 0;
+         cfile = cfile->next);
+    if (!cfile) {
+      debug(dbg_stupidlyverbose, "process_archive no non-root, no disappear");
+      continue;
+    }
+    for (cfile = otherpkg->files;
+         cfile && !filesavespackage(cfile, otherpkg, pkg);
+         cfile = cfile->next);
+    if (cfile)
+      continue;
+
+    /* So dependency things will give right answers ... */
+    otherpkg->clientdata->istobe = PKG_ISTOBE_REMOVE;
+    debug(dbg_veryverbose, "process_archive disappear checking dependencies");
+    for (pdep = otherpkg->set->depended.installed;
+         pdep;
+         pdep = pdep->rev_next) {
+      if (pdep->up->type != dep_depends &&
+          pdep->up->type != dep_predepends &&
+          pdep->up->type != dep_recommends)
+        continue;
+
+      if (depisok(pdep->up, &depprobwhy, NULL, NULL, false))
+        continue;
+
+      varbuf_end_str(&depprobwhy);
+      debug(dbg_veryverbose,"process_archive cannot disappear: %s",
+            depprobwhy.buf);
+      break;
+    }
+    if (!pdep) {
+      /* If we haven't found a reason not to yet, let's look some more. */
+      for (providecheck = otherpkg->installed.depends;
+           providecheck;
+           providecheck = providecheck->next) {
+        if (providecheck->type != dep_provides)
+          continue;
+
+        for (pdep = providecheck->list->ed->depended.installed;
+             pdep;
+             pdep = pdep->rev_next) {
+          if (pdep->up->type != dep_depends &&
+              pdep->up->type != dep_predepends &&
+              pdep->up->type != dep_recommends)
+            continue;
+
+          if (depisok(pdep->up, &depprobwhy, NULL, NULL, false))
+            continue;
+
+          varbuf_end_str(&depprobwhy);
+          debug(dbg_veryverbose,
+                "process_archive cannot disappear (provides %s): %s",
+                providecheck->list->ed->name, depprobwhy.buf);
+          goto break_from_both_loops_at_once;
+        }
+      }
+      break_from_both_loops_at_once:;
+    }
+    otherpkg->clientdata->istobe = PKG_ISTOBE_NORMAL;
+    if (pdep)
+      continue;
+
+    /* No, we're disappearing it. This is the wrong time to go and
+     * run maintainer scripts and things, as we can't back out. But
+     * what can we do ?  It has to be run this late. */
+    pkg_disappear(otherpkg, pkg);
+  } /* while (otherpkg= ... */
+  pkg_hash_iter_free(iter);
+}
+
+/**
+ * Check if all instances of a pkgset are getting in sync.
+ *
+ * If that's the case, the extraction is going to ensure consistency
+ * of shared files.
+ */
+static bool
+pkgset_getting_in_sync(struct pkginfo *pkg)
+{
+  struct pkginfo *otherpkg;
+
+  for (otherpkg = &pkg->set->pkg; otherpkg; otherpkg = otherpkg->arch_next) {
+    if (otherpkg == pkg)
+      continue;
+    if (otherpkg->status <= PKG_STAT_CONFIGFILES)
+      continue;
+    if (dpkg_version_compare(&pkg->available.version,
+                             &otherpkg->installed.version)) {
+      return false;
+    }
+  }
+
+  return true;
+}
+
+static void
+pkg_remove_files_from_others(struct pkginfo *pkg, struct fsys_namenode_list *newfileslist)
+{
+  struct fsys_namenode_list *cfile;
+  struct pkginfo *otherpkg;
+
+  for (cfile = newfileslist; cfile; cfile = cfile->next) {
+    struct fsys_node_pkgs_iter *iter;
+    struct pkgset *divpkgset;
+
+    if (!(cfile->namenode->flags & FNNF_ELIDE_OTHER_LISTS))
+      continue;
+
+    if (cfile->namenode->divert && cfile->namenode->divert->useinstead) {
+      divpkgset = cfile->namenode->divert->pkgset;
+      if (divpkgset == pkg->set) {
+        debug(dbg_eachfile,
+              "process_archive not overwriting any '%s' (overriding, '%s')",
+              cfile->namenode->name, cfile->namenode->divert->useinstead->name);
+        continue;
+      } else {
+        debug(dbg_eachfile,
+              "process_archive looking for overwriting '%s' (overridden by %s)",
+              cfile->namenode->name, divpkgset ? divpkgset->name : "<local>");
+      }
+    } else {
+      divpkgset = NULL;
+      debug(dbg_eachfile, "process_archive looking for overwriting '%s'",
+            cfile->namenode->name);
+    }
+
+    iter = fsys_node_pkgs_iter_new(cfile->namenode);
+    while ((otherpkg = fsys_node_pkgs_iter_next(iter))) {
+      debug(dbg_eachfiledetail, "process_archive ... found in %s",
+            pkg_name(otherpkg, pnaw_always));
+
+      /* A pkgset can share files between instances, so there's no point
+       * in rewriting the file that's already in place. */
+      if (otherpkg->set == pkg->set)
+        continue;
+
+      if (otherpkg->set == divpkgset) {
+        debug(dbg_eachfiledetail, "process_archive ... diverted, skipping");
+        continue;
+      }
+
+      if (cfile->namenode->flags & FNNF_NEW_CONFF)
+        conffile_mark_obsolete(otherpkg, cfile->namenode);
+
+      /* If !files_list_valid then it's one of the disappeared packages above
+       * or we have already updated the files list file, and we don't bother
+       * with it here, clearly. */
+      if (!otherpkg->files_list_valid)
+        continue;
+
+      /* Found one. We delete the list entry for this file,
+       * (and any others in the same package) and then mark the package
+       * as requiring a reread. */
+      write_filelist_except(otherpkg, &otherpkg->installed,
+                            otherpkg->files, FNNF_ELIDE_OTHER_LISTS);
+      debug(dbg_veryverbose, "process_archive overwrote from %s",
+            pkg_name(otherpkg, pnaw_always));
+    }
+    fsys_node_pkgs_iter_free(iter);
+  }
+}
+
+static void
+pkg_remove_backup_files(struct pkginfo *pkg, struct fsys_namenode_list *newfileslist)
+{
+  struct fsys_namenode_list *cfile;
+
+  for (cfile = newfileslist; cfile; cfile = cfile->next) {
+    struct fsys_namenode *usenode;
+
+    if (cfile->namenode->flags & FNNF_NEW_CONFF)
+      continue;
+
+    usenode = namenodetouse(cfile->namenode, pkg, &pkg->installed);
+
+    /* Do not try to remove backups for the root directory. */
+    if (strcmp(usenode->name, "/.") == 0)
+      continue;
+
+    varbuf_rollback(&fnametmp_state);
+    varbuf_add_str(&fnametmpvb, usenode->name);
+    varbuf_add_str(&fnametmpvb, DPKGTEMPEXT);
+    varbuf_end_str(&fnametmpvb);
+    path_remove_tree(fnametmpvb.buf);
+  }
+}
+
+void process_archive(const char *filename) {
+  static const struct tar_operations tf = {
+    .read = tarfileread,
+    .extract_file = tarobject,
+    .link = tarobject,
+    .symlink = tarobject,
+    .mkdir = tarobject,
+    .mknod = tarobject,
+  };
+
+  /* These need to be static so that we can pass their addresses to
+   * push_cleanup as arguments to the cu_xxx routines; if an error occurs
+   * we unwind the stack before processing the cleanup list, and these
+   * variables had better still exist ... */
+  static int p1[2];
+  static enum pkgstatus oldversionstatus;
+  static struct tarcontext tc;
+
+  struct tar_archive tar;
+  struct dpkg_error err;
+  enum parsedbflags parsedb_flags;
+  int rc;
+  pid_t pid;
+  struct pkginfo *pkg, *otherpkg;
+  struct pkg_list *conflictor_iter;
+  char *cidir = NULL;
+  char *cidirrest;
+  char *psize;
+  const char *pfilename;
+  struct fsys_namenode_queue newconffiles, newfiles_queue;
+  struct stat stab;
+
+  cleanup_pkg_failed= cleanup_conflictor_failed= 0;
+
+  pfilename = summarize_filename(filename);
+
+  if (stat(filename, &stab))
+    ohshite(_("cannot access archive '%s'"), filename);
+
+  /* We can't ‘tentatively-reassemble’ packages. */
+  if (!f_noact) {
+    if (!deb_reassemble(&filename, &pfilename))
+      return;
+  }
+
+  /* Verify the package. */
+  if (!f_nodebsig)
+    deb_verify(filename);
+
+  /* Get the control information directory. */
+  cidir = get_control_dir(cidir);
+  cidirrest = cidir + strlen(cidir);
+  push_cleanup(cu_cidir, ~0, 2, (void *)cidir, (void *)cidirrest);
+
+  pid = subproc_fork();
+  if (pid == 0) {
+    cidirrest[-1] = '\0';
+    execlp(BACKEND, BACKEND, "--control", filename, cidir, NULL);
+    ohshite(_("unable to execute %s (%s)"),
+            _("package control information extraction"), BACKEND);
+  }
+  subproc_reap(pid, BACKEND " --control", 0);
+
+  /* We want to guarantee the extracted files are on the disk, so that the
+   * subsequent renames to the info database do not end up with old or zero
+   * length files in case of a system crash. As neither dpkg-deb nor tar do
+   * explicit fsync()s, we have to do them here.
+   * XXX: This could be avoided by switching to an internal tar extractor. */
+  dir_sync_contents(cidir);
+
+  strcpy(cidirrest,CONTROLFILE);
+
+  if (cipaction->arg_int == act_avail)
+    parsedb_flags = pdb_parse_available;
+  else
+    parsedb_flags = pdb_parse_binary;
+  parsedb_flags |= pdb_ignore_archives;
+  if (in_force(FORCE_BAD_VERSION))
+    parsedb_flags |= pdb_lax_version_parser;
+
+  parsedb(cidir, parsedb_flags, &pkg);
+
+  if (!pkg->archives) {
+    pkg->archives = nfmalloc(sizeof(*pkg->archives));
+    pkg->archives->next = NULL;
+    pkg->archives->name = NULL;
+    pkg->archives->msdosname = NULL;
+    pkg->archives->md5sum = NULL;
+  }
+  /* Always nfmalloc. Otherwise, we may overwrite some other field (like
+   * md5sum). */
+  psize = nfmalloc(30);
+  sprintf(psize, "%jd", (intmax_t)stab.st_size);
+  pkg->archives->size = psize;
+
+  if (cipaction->arg_int == act_avail) {
+    printf(_("Recorded info about %s from %s.\n"),
+           pkgbin_name(pkg, &pkg->available, pnaw_nonambig), pfilename);
+    pop_cleanup(ehflag_normaltidy);
+    return;
+  }
+
+  if (pkg->available.arch->type != DPKG_ARCH_ALL &&
+      pkg->available.arch->type != DPKG_ARCH_NATIVE &&
+      pkg->available.arch->type != DPKG_ARCH_FOREIGN)
+    forcibleerr(FORCE_ARCHITECTURE,
+                _("package architecture (%s) does not match system (%s)"),
+                pkg->available.arch->name,
+                dpkg_arch_get(DPKG_ARCH_NATIVE)->name);
+
+  clear_deconfigure_queue();
+  clear_istobes();
+
+  if (wanttoinstall(pkg)) {
+    pkg_set_want(pkg, PKG_WANT_INSTALL);
+  } else {
+    pop_cleanup(ehflag_normaltidy);
+    return;
+  }
+
+  /* Deconfigure other instances from a pkgset if they are not in sync. */
+  for (otherpkg = &pkg->set->pkg; otherpkg; otherpkg = otherpkg->arch_next) {
+    if (otherpkg == pkg)
+      continue;
+    if (otherpkg->status <= PKG_STAT_HALFCONFIGURED)
+      continue;
+
+    if (dpkg_version_compare(&pkg->available.version,
+                             &otherpkg->installed.version))
+      enqueue_deconfigure(otherpkg, NULL, PKG_WANT_UNKNOWN);
+  }
+
+  pkg_check_depcon(pkg, pfilename);
+
+  ensure_allinstfiles_available();
+  fsys_hash_init();
+  trig_file_interests_ensure();
+
+  printf(_("Preparing to unpack %s ...\n"), pfilename);
+
+  if (pkg->status != PKG_STAT_NOTINSTALLED &&
+      pkg->status != PKG_STAT_CONFIGFILES) {
+    log_action("upgrade", pkg, &pkg->installed);
+  } else {
+    log_action("install", pkg, &pkg->available);
+  }
+
+  if (f_noact) {
+    pop_cleanup(ehflag_normaltidy);
+    return;
+  }
+
+  /*
+   * OK, we're going ahead.
+   */
+
+  trig_activate_packageprocessing(pkg);
+  strcpy(cidirrest, TRIGGERSCIFILE);
+  trig_parse_ci(cidir, NULL, trig_cicb_statuschange_activate, pkg, &pkg->available);
+
+  /* Read the conffiles, and copy the hashes across. */
+  newconffiles.head = NULL;
+  newconffiles.tail = &newconffiles.head;
+  push_cleanup(cu_fileslist, ~0, 0);
+  strcpy(cidirrest,CONFFILESFILE);
+  deb_parse_conffiles(pkg, cidir, &newconffiles);
+
+  /* All the old conffiles are marked with a flag, so that we don't delete
+   * them if they seem to disappear completely. */
+  pkg_conffiles_mark_old(pkg);
+  for (conflictor_iter = conflictors.head;
+       conflictor_iter;
+       conflictor_iter = conflictor_iter->next)
+    pkg_conffiles_mark_old(conflictor_iter->pkg);
+
+  oldversionstatus= pkg->status;
+
+  if (oldversionstatus > PKG_STAT_INSTALLED)
+    internerr("package %s state %d is out-of-bounds",
+              pkg_name(pkg, pnaw_always), oldversionstatus);
+
+  debug(dbg_general,"process_archive oldversionstatus=%s",
+        statusstrings[oldversionstatus]);
+
+  if (oldversionstatus == PKG_STAT_HALFCONFIGURED ||
+      oldversionstatus == PKG_STAT_TRIGGERSAWAITED ||
+      oldversionstatus == PKG_STAT_TRIGGERSPENDING ||
+      oldversionstatus == PKG_STAT_INSTALLED) {
+    pkg_set_eflags(pkg, PKG_EFLAG_REINSTREQ);
+    pkg_set_status(pkg, PKG_STAT_HALFCONFIGURED);
+    modstatdb_note(pkg);
+    push_cleanup(cu_prermupgrade, ~ehflag_normaltidy, 1, (void *)pkg);
+    maintscript_fallback(pkg, PRERMFILE, "pre-removal", cidir, cidirrest,
+                         "upgrade", "failed-upgrade");
+    pkg_set_status(pkg, PKG_STAT_UNPACKED);
+    oldversionstatus = PKG_STAT_UNPACKED;
+    modstatdb_note(pkg);
+  }
+
+  pkg_deconfigure_others(pkg);
+
+  for (conflictor_iter = conflictors.head;
+       conflictor_iter;
+       conflictor_iter = conflictor_iter->next) {
+    struct pkginfo *conflictor = conflictor_iter->pkg;
+
+    if (!(conflictor->status == PKG_STAT_HALFCONFIGURED ||
+          conflictor->status == PKG_STAT_TRIGGERSAWAITED ||
+          conflictor->status == PKG_STAT_TRIGGERSPENDING ||
+          conflictor->status == PKG_STAT_INSTALLED))
+      continue;
+
+    trig_activate_packageprocessing(conflictor);
+    pkg_set_status(conflictor, PKG_STAT_HALFCONFIGURED);
+    modstatdb_note(conflictor);
+    push_cleanup(cu_prerminfavour, ~ehflag_normaltidy,
+                 2, conflictor, pkg);
+    maintscript_installed(conflictor, PRERMFILE, "pre-removal",
+                          "remove", "in-favour",
+                          pkgbin_name(pkg, &pkg->available, pnaw_nonambig),
+                          versiondescribe(&pkg->available.version,
+                                          vdew_nonambig),
+                          NULL);
+    pkg_set_status(conflictor, PKG_STAT_HALFINSTALLED);
+    modstatdb_note(conflictor);
+  }
+
+  pkg_set_eflags(pkg, PKG_EFLAG_REINSTREQ);
+  if (pkg->status == PKG_STAT_NOTINSTALLED) {
+    pkg->installed.version= pkg->available.version;
+    pkg->installed.multiarch = pkg->available.multiarch;
+  }
+  pkg_set_status(pkg, PKG_STAT_HALFINSTALLED);
+  modstatdb_note(pkg);
+  if (oldversionstatus == PKG_STAT_NOTINSTALLED) {
+    push_cleanup(cu_preinstverynew, ~ehflag_normaltidy,
+                 3,(void*)pkg,(void*)cidir,(void*)cidirrest);
+    maintscript_new(pkg, PREINSTFILE, "pre-installation", cidir, cidirrest,
+                    "install", NULL);
+  } else if (oldversionstatus == PKG_STAT_CONFIGFILES) {
+    push_cleanup(cu_preinstnew, ~ehflag_normaltidy,
+                 3,(void*)pkg,(void*)cidir,(void*)cidirrest);
+    maintscript_new(pkg, PREINSTFILE, "pre-installation", cidir, cidirrest,
+                    "install",
+                    versiondescribe(&pkg->installed.version, vdew_nonambig),
+                    versiondescribe(&pkg->available.version, vdew_nonambig),
+                    NULL);
+  } else {
+    push_cleanup(cu_preinstupgrade, ~ehflag_normaltidy,
+                 4,(void*)pkg,(void*)cidir,(void*)cidirrest,(void*)&oldversionstatus);
+    maintscript_new(pkg, PREINSTFILE, "pre-installation", cidir, cidirrest,
+                    "upgrade",
+                    versiondescribe(&pkg->installed.version, vdew_nonambig),
+                    versiondescribe(&pkg->available.version, vdew_nonambig),
+                    NULL);
+  }
+
+  if (oldversionstatus == PKG_STAT_NOTINSTALLED ||
+      oldversionstatus == PKG_STAT_CONFIGFILES) {
+    printf(_("Unpacking %s (%s) ...\n"),
+           pkgbin_name(pkg, &pkg->available, pnaw_nonambig),
+           versiondescribe(&pkg->available.version, vdew_nonambig));
+  } else {
+    printf(_("Unpacking %s (%s) over (%s) ...\n"),
+           pkgbin_name(pkg, &pkg->available, pnaw_nonambig),
+           versiondescribe(&pkg->available.version, vdew_nonambig),
+           versiondescribe(&pkg->installed.version, vdew_nonambig));
+  }
+
+  /*
+   * Now we unpack the archive, backing things up as we go.
+   * For each file, we check to see if it already exists.
+   * There are several possibilities:
+   *
+   * + We are trying to install a non-directory ...
+   *  - It doesn't exist. In this case we simply extract it.
+   *  - It is a plain file, device, symlink, &c. We do an ‘atomic
+   *    overwrite’ using link() and rename(), but leave a backup copy.
+   *    Later, when we delete the backup, we remove it from any other
+   *    packages' lists.
+   *  - It is a directory. In this case it depends on whether we're
+   *    trying to install a symlink or something else.
+   *   = If we're not trying to install a symlink we move the directory
+   *     aside and extract the node. Later, when we recursively remove
+   *     the backed-up directory, we remove it from any other packages'
+   *     lists.
+   *   = If we are trying to install a symlink we do nothing - ie,
+   *     dpkg will never replace a directory tree with a symlink. This
+   *     is to avoid embarrassing effects such as replacing a directory
+   *     tree with a link to a link to the original directory tree.
+   * + We are trying to install a directory ...
+   *  - It doesn't exist. We create it with the appropriate modes.
+   *  - It exists as a directory or a symlink to one. We do nothing.
+   *  - It is a plain file or a symlink (other than to a directory).
+   *    We move it aside and create the directory. Later, when we
+   *    delete the backup, we remove it from any other packages' lists.
+   *
+   *                   Install non-dir   Install symlink   Install dir
+   *  Exists not               X               X                X
+   *  File/node/symlink       LXR             LXR              BXR
+   *  Directory               BXR              -                -
+   *
+   *    X: extract file/node/link/directory
+   *   LX: atomic overwrite leaving backup
+   *    B: ordinary backup
+   *    R: later remove from other packages' lists
+   *    -: do nothing
+   *
+   * After we've done this we go through the remaining things in the
+   * lists of packages we're trying to remove (including the old
+   * version of the current package). This happens in reverse order,
+   * so that we process files before the directories (or symlinks-to-
+   * directories) containing them.
+   *
+   * + If the thing is a conffile then we leave it alone for the purge
+   *   operation.
+   * + Otherwise, there are several possibilities too:
+   *  - The listed thing does not exist. We ignore it.
+   *  - The listed thing is a directory or a symlink to a directory.
+   *    We delete it only if it isn't listed in any other package.
+   *  - The listed thing is not a directory, but was part of the package
+   *    that was upgraded, we check to make sure the files aren't the
+   *    same ones from the old package by checking dev/inode
+   *  - The listed thing is not a directory or a symlink to one (ie,
+   *    it's a plain file, device, pipe, &c, or a symlink to one, or a
+   *    dangling symlink). We delete it.
+   *
+   * The removed packages' list becomes empty (of course, the new
+   * version of the package we're installing will have a new list,
+   * which replaces the old version's list).
+   *
+   * If at any stage we remove a file from a package's list, and the
+   * package isn't one we're already processing, and the package's
+   * list becomes empty as a result, we ‘vanish’ the package. This
+   * means that we run its postrm with the ‘disappear’ argument, and
+   * put the package in the ‘not-installed’ state. If it had any
+   * conffiles, their hashes and ownership will have been transferred
+   * already, so we just ignore those and forget about them from the
+   * point of view of the disappearing package.
+   *
+   * NOTE THAT THE OLD POSTRM IS RUN AFTER THE NEW PREINST, since the
+   * files get replaced ‘as we go’.
+   */
+
+  m_pipe(p1);
+  push_cleanup(cu_closepipe, ehflag_bombout, 1, (void *)&p1[0]);
+  pid = subproc_fork();
+  if (pid == 0) {
+    m_dup2(p1[1],1); close(p1[0]); close(p1[1]);
+    execlp(BACKEND, BACKEND, "--fsys-tarfile", filename, NULL);
+    ohshite(_("unable to execute %s (%s)"),
+            _("package filesystem archive extraction"), BACKEND);
+  }
+  close(p1[1]);
+  p1[1] = -1;
+
+  newfiles_queue.head = NULL;
+  newfiles_queue.tail = &newfiles_queue.head;
+  tc.newfiles_queue = &newfiles_queue;
+  push_cleanup(cu_fileslist, ~0, 0);
+  tc.pkg= pkg;
+  tc.backendpipe= p1[0];
+  tc.pkgset_getting_in_sync = pkgset_getting_in_sync(pkg);
+
+  /* Setup the tar archive. */
+  tar.err = DPKG_ERROR_OBJECT;
+  tar.ctx = &tc;
+  tar.ops = &tf;
+
+  rc = tar_extractor(&tar);
+  if (rc)
+    dpkg_error_print(&tar.err,
+                     _("corrupted filesystem tarfile in package archive"));
+  if (fd_skip(p1[0], -1, &err) < 0)
+    ohshit(_("cannot zap possible trailing zeros from dpkg-deb: %s"), err.str);
+  close(p1[0]);
+  p1[0] = -1;
+  subproc_reap(pid, BACKEND " --fsys-tarfile", SUBPROC_NOPIPE);
+
+  tar_deferred_extract(newfiles_queue.head, pkg);
+
+  if (oldversionstatus == PKG_STAT_HALFINSTALLED ||
+      oldversionstatus == PKG_STAT_UNPACKED) {
+    /* Packages that were in ‘installed’ and ‘postinstfailed’ have been
+     * reduced to ‘unpacked’ by now, by the running of the prerm script. */
+    pkg_set_status(pkg, PKG_STAT_HALFINSTALLED);
+    modstatdb_note(pkg);
+    push_cleanup(cu_postrmupgrade, ~ehflag_normaltidy, 1, (void *)pkg);
+    maintscript_fallback(pkg, POSTRMFILE, "post-removal", cidir, cidirrest,
+                         "upgrade", "failed-upgrade");
+  }
+
+  /* If anything goes wrong while tidying up it's a bit late to do
+   * anything about it. However, we don't install the new status
+   * info yet, so that a future dpkg installation will put everything
+   * right (we hope).
+   *
+   * If something does go wrong later the ‘conflictor’ package will be
+   * left in the ‘removal_failed’ state. Removing or installing it
+   * will be impossible if it was required because of the conflict with
+   * the package we're installing now and (presumably) the dependency
+   * by other packages. This means that the files it contains in
+   * common with this package will hang around until we successfully
+   * get this package installed, after which point we can trust the
+   * conflicting package's file list, which will have been updated to
+   * remove any files in this package. */
+  push_checkpoint(~ehflag_bombout, ehflag_normaltidy);
+
+  /* Now we delete all the files that were in the old version of
+   * the package only, except (old or new) conffiles, which we leave
+   * alone. */
+  pkg_remove_old_files(pkg, &newfiles_queue, &newconffiles);
+
+  /* OK, now we can write the updated files-in-this package list,
+   * since we've done away (hopefully) with all the old junk. */
+  write_filelist_except(pkg, &pkg->available, newfiles_queue.head, 0);
+
+  /* Trigger interests may have changed.
+   * Firstly we go through the old list of interests deleting them.
+   * Then we go through the new list adding them. */
+  strcpy(cidirrest, TRIGGERSCIFILE);
+  trig_parse_ci(pkg_infodb_get_file(pkg, &pkg->installed, TRIGGERSCIFILE),
+                trig_cicb_interest_delete, NULL, pkg, &pkg->installed);
+  trig_parse_ci(cidir, trig_cicb_interest_add, NULL, pkg, &pkg->available);
+  trig_file_interests_save();
+
+  /* We also install the new maintainer scripts, and any other
+   * cruft that may have come along with the package. First
+   * we go through the existing scripts replacing or removing
+   * them as appropriate; then we go through the new scripts
+   * (any that are left) and install them. */
+  debug(dbg_general, "process_archive updating info directory");
+  pkg_infodb_update(pkg, cidir, cidirrest);
+
+  /* We store now the checksums dynamically computed while unpacking. */
+  write_filehash_except(pkg, &pkg->available, newfiles_queue.head, 0);
+
+  /*
+   * Update the status database.
+   *
+   * This involves copying each field across from the ‘available’
+   * to the ‘installed’ half of the pkg structure.
+   * For some of the fields we have to do a complicated construction
+   * operation; for others we can just copy the value.
+   * We tackle the fields in the order they appear, so that
+   * we don't miss any out :-).
+   * At least we don't have to copy any strings that are referred
+   * to, because these are never modified and never freed.
+   */
+  pkg_update_fields(pkg, &newconffiles);
+
+  /* In case this was an architecture cross-grade, the in-core pkgset might
+   * be in an inconsistent state, with two pkginfo entries having the same
+   * architecture, so let's fix that. Note that this does not lose data,
+   * as the pkg.available member parsed from the binary should replace the
+   * to be cleared duplicate in the other instance. */
+  for (otherpkg = &pkg->set->pkg; otherpkg; otherpkg = otherpkg->arch_next) {
+    if (otherpkg == pkg)
+      continue;
+    if (otherpkg->installed.arch != pkg->installed.arch)
+      continue;
+
+    if (otherpkg->status != PKG_STAT_NOTINSTALLED)
+      internerr("other package %s instance in state %s instead of not-installed",
+                pkg_name(otherpkg, pnaw_always), pkg_status_name(otherpkg));
+
+    pkg_blank(otherpkg);
+  }
+
+  /* Check for disappearing packages:
+   * We go through all the packages on the system looking for ones
+   * whose files are entirely part of the one we've just unpacked
+   * (and which actually *have* some files!).
+   *
+   * Any that we find are removed - we run the postrm with ‘disappear’
+   * as an argument, and remove their info/... files and status info.
+   * Conffiles are ignored (the new package had better do something
+   * with them!). */
+  pkg_disappear_others(pkg);
+
+  /* Delete files from any other packages' lists.
+   * We have to do this before we claim this package is in any
+   * sane kind of state, as otherwise we might delete by mistake
+   * a file that we overwrote, when we remove the package which
+   * had the version we overwrote. To prevent this we make
+   * sure that we don't claim this package is OK until we
+   * have claimed ‘ownership’ of all its files. */
+  pkg_remove_files_from_others(pkg, newfiles_queue.head);
+
+  /* Right, the package we've unpacked is now in a reasonable state.
+   * The only thing that we have left to do with it is remove
+   * backup files, and we can leave the user to fix that if and when
+   * it happens (we leave the reinstall required flag, of course). */
+  pkg_set_status(pkg, PKG_STAT_UNPACKED);
+  modstatdb_note(pkg);
+
+  /* Now we delete all the backup files that we made when
+   * extracting the archive - except for files listed as conffiles
+   * in the new package.
+   * This time we count it as an error if something goes wrong.
+   *
+   * Note that we don't ever delete things that were in the old
+   * package as a conffile and don't appear at all in the new.
+   * They stay recorded as obsolete conffiles and will eventually
+   * (if not taken over by another package) be forgotten. */
+  pkg_remove_backup_files(pkg, newfiles_queue.head);
+
+  /* OK, we're now fully done with the main package.
+   * This is quite a nice state, so we don't unwind past here. */
+  pkg_reset_eflags(pkg);
+  modstatdb_note(pkg);
+  push_checkpoint(~ehflag_bombout, ehflag_normaltidy);
+
+  /* Only the removal of the conflictor left to do.
+   * The files list for the conflictor is still a little inconsistent in-core,
+   * as we have not yet updated the filename->packages mappings; however,
+   * the package->filenames mapping is. */
+  while (!pkg_queue_is_empty(&conflictors)) {
+    struct pkginfo *conflictor = pkg_queue_pop(&conflictors);
+
+    /* We need to have the most up-to-date info about which files are
+     * what ... */
+    ensure_allinstfiles_available();
+    printf(_("Removing %s (%s), to allow configuration of %s (%s) ...\n"),
+           pkg_name(conflictor, pnaw_nonambig),
+           versiondescribe(&conflictor->installed.version, vdew_nonambig),
+           pkg_name(pkg, pnaw_nonambig),
+           versiondescribe(&pkg->installed.version, vdew_nonambig));
+    removal_bulk(conflictor);
+  }
+
+  if (cipaction->arg_int == act_install)
+    enqueue_package_mark_seen(pkg);
+}
diff --git a/src/main/update.c b/src/main/update.c
new file mode 100644
index 0000000..4a9a95b
--- /dev/null
+++ b/src/main/update.c
@@ -0,0 +1,124 @@
+/*
+ * dpkg - main program for package management
+ * update.c - options which update the ‘available’ database
+ *
+ * Copyright © 1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/options.h>
+
+#include "main.h"
+
+int
+updateavailable(const char *const *argv)
+{
+  const char *sourcefile= argv[0];
+  char *availfile;
+  int count= 0;
+
+  modstatdb_init();
+
+  switch (cipaction->arg_int) {
+  case act_avclear:
+    if (sourcefile) badusage(_("--%s takes no arguments"),cipaction->olong);
+    break;
+  case act_avreplace: case act_avmerge:
+    if (sourcefile == NULL)
+      sourcefile = "-";
+    else if (argv[1])
+      badusage(_("--%s takes at most one Packages-file argument"),
+               cipaction->olong);
+    break;
+  default:
+    internerr("unknown action '%d'", cipaction->arg_int);
+  }
+
+  if (!f_noact) {
+    const char *dbdir = dpkg_db_get_dir();
+
+    if (access(dbdir, W_OK)) {
+      if (errno != EACCES)
+        ohshite(_("unable to access dpkg database directory '%s' for bulk available update"),
+                dbdir);
+      else
+        ohshit(_("required write access to dpkg database directory '%s' for bulk available update"),
+               dbdir);
+    }
+    modstatdb_lock();
+  }
+
+  switch (cipaction->arg_int) {
+  case act_avreplace:
+    printf(_("Replacing available packages info, using %s.\n"),sourcefile);
+    break;
+  case act_avmerge:
+    printf(_("Updating available packages info, using %s.\n"),sourcefile);
+    break;
+  case act_avclear:
+    break;
+  default:
+    internerr("unknown action '%d'", cipaction->arg_int);
+  }
+
+  availfile = dpkg_db_get_path(AVAILFILE);
+
+  if (cipaction->arg_int == act_avmerge)
+    parsedb(availfile, pdb_parse_available, NULL);
+
+  if (cipaction->arg_int != act_avclear)
+    count += parsedb(sourcefile,
+                     pdb_parse_available | pdb_ignoreolder | pdb_dash_is_stdin,
+                     NULL);
+
+  if (!f_noact) {
+    writedb(availfile, wdb_dump_available);
+    modstatdb_unlock();
+  }
+
+  free(availfile);
+
+  if (cipaction->arg_int != act_avclear)
+    printf(P_("Information about %d package was updated.\n",
+              "Information about %d packages was updated.\n", count), count);
+
+  modstatdb_done();
+
+  return 0;
+}
+
+int
+forgetold(const char *const *argv)
+{
+  if (*argv)
+    badusage(_("--%s takes no arguments"), cipaction->olong);
+
+  warning(_("obsolete '--%s' option; unavailable packages are automatically cleaned up"),
+          cipaction->olong);
+
+  return 0;
+}
diff --git a/src/main/verify.c b/src/main/verify.c
new file mode 100644
index 0000000..6a5d733
--- /dev/null
+++ b/src/main/verify.c
@@ -0,0 +1,243 @@
+/*
+ * dpkg - main program for package management
+ * verify.c - verify package integrity
+ *
+ * Copyright © 2012-2015 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/options.h>
+#include <dpkg/db-ctrl.h>
+#include <dpkg/db-fsys.h>
+#include <dpkg/buffer.h>
+
+#include "main.h"
+
+
+enum verify_result {
+	VERIFY_NONE,
+	VERIFY_PASS,
+	VERIFY_FAIL,
+};
+
+struct verify_checks {
+	int exists_errno;
+	enum verify_result exists;
+	enum verify_result mode;
+	enum verify_result md5sum;
+};
+
+typedef void verify_output_func(struct fsys_namenode *, struct verify_checks *);
+
+static int
+verify_result_rpm(enum verify_result result, int check)
+{
+	switch (result) {
+	case VERIFY_FAIL:
+		return check;
+	case VERIFY_PASS:
+		return '.';
+	case VERIFY_NONE:
+	default:
+		return '?';
+	}
+}
+
+static void
+verify_output_rpm(struct fsys_namenode *namenode, struct verify_checks *checks)
+{
+	char result[9];
+	char *error = NULL;
+	int attr;
+
+	memset(result, '?', sizeof(result));
+
+	if (checks->exists == VERIFY_FAIL) {
+		memcpy(result, "missing  ", sizeof(result));
+		if (checks->exists_errno != ENOENT)
+			m_asprintf(&error, " (%s)", strerror(checks->exists_errno));
+	} else {
+		result[1] = verify_result_rpm(checks->mode, 'M');
+		result[2] = verify_result_rpm(checks->md5sum, '5');
+	}
+
+	if (namenode->flags & FNNF_OLD_CONFF)
+		attr = 'c';
+	else
+		attr = ' ';
+
+	printf("%.9s %c %s%s\n", result, attr, namenode->name, error ? error : "");
+
+	free(error);
+}
+
+static verify_output_func *verify_output = verify_output_rpm;
+
+bool
+verify_set_output(const char *name)
+{
+	if (strcmp(name, "rpm") == 0)
+		verify_output = verify_output_rpm;
+	else
+		return false;
+
+	return true;
+}
+
+static int
+verify_digest(const char *filename, struct fsys_namenode *fnn,
+              struct verify_checks *checks)
+{
+	static int fd;
+
+	fd = open(filename, O_RDONLY);
+
+	if (fd >= 0) {
+		struct dpkg_error err;
+		char hash[MD5HASHLEN + 1];
+
+		push_cleanup(cu_closefd, ehflag_bombout, 1, &fd);
+		if (fd_md5(fd, hash, -1, &err) < 0)
+			ohshit(_("cannot compute MD5 digest for file '%s': %s"),
+			       filename, err.str);
+		pop_cleanup(ehflag_normaltidy); /* fd = open(cdr.buf) */
+		close(fd);
+
+		if (strcmp(hash, fnn->newhash) == 0) {
+			checks->md5sum = VERIFY_PASS;
+			return 0;
+		} else {
+			checks->md5sum = VERIFY_FAIL;
+		}
+	} else {
+		checks->md5sum = VERIFY_NONE;
+	}
+
+	return -1;
+}
+
+static int
+verify_file(const char *filename, struct fsys_namenode *fnn,
+            struct pkginfo *pkg, struct verify_checks *checks)
+{
+	struct stat st;
+	int failures = 0;
+
+	if (lstat(filename, &st) < 0) {
+		checks->exists_errno = errno;
+		checks->exists = VERIFY_FAIL;
+		return 1;
+	}
+	checks->exists = VERIFY_PASS;
+
+	if (fnn->newhash == NULL && fnn->oldhash != NULL)
+		fnn->newhash = fnn->oldhash;
+
+	if (fnn->newhash != NULL) {
+		/* Mode check heuristic: If we know its digest, the pathname
+		 * must be a regular file. */
+		if (!S_ISREG(st.st_mode)) {
+			checks->mode = VERIFY_FAIL;
+			failures++;
+		}
+
+		if (verify_digest(filename, fnn, checks) < 0)
+			failures++;
+	}
+
+	return failures;
+}
+
+static void
+verify_package(struct pkginfo *pkg)
+{
+	struct fsys_namenode_list *file;
+	struct varbuf filename = VARBUF_INIT;
+
+	ensure_packagefiles_available(pkg);
+	parse_filehash(pkg, &pkg->installed);
+	pkg_conffiles_mark_old(pkg);
+
+	for (file = pkg->files; file; file = file->next) {
+		struct verify_checks checks;
+		struct fsys_namenode *fnn;
+
+		fnn = namenodetouse(file->namenode, pkg, &pkg->installed);
+
+		varbuf_set_str(&filename, dpkg_fsys_get_dir());
+		varbuf_add_str(&filename, fnn->name);
+		varbuf_end_str(&filename);
+
+		memset(&checks, 0, sizeof(checks));
+
+		if (verify_file(filename.buf, fnn, pkg, &checks) > 0)
+			verify_output(fnn, &checks);
+	}
+
+	varbuf_destroy(&filename);
+}
+
+int
+verify(const char *const *argv)
+{
+	struct pkginfo *pkg;
+	int rc = 0;
+
+	modstatdb_open(msdbrw_readonly);
+	ensure_diversions();
+
+	if (!*argv) {
+		struct pkg_hash_iter *iter;
+
+		iter = pkg_hash_iter_new();
+		while ((pkg = pkg_hash_iter_next_pkg(iter)))
+			verify_package(pkg);
+		pkg_hash_iter_free(iter);
+	} else {
+		const char *thisarg;
+
+		while ((thisarg = *argv++)) {
+			pkg = dpkg_options_parse_pkgname(cipaction, thisarg);
+			if (pkg->status == PKG_STAT_NOTINSTALLED) {
+				notice(_("package '%s' is not installed"),
+				       pkg_name(pkg, pnaw_nonambig));
+				rc = 1;
+				continue;
+			}
+
+			verify_package(pkg);
+		}
+	}
+
+	modstatdb_shutdown();
+
+	m_output(stdout, _("<standard output>"));
+
+	return rc;
+}
diff --git a/src/query/main.c b/src/query/main.c
new file mode 100644
index 0000000..7f8de59
--- /dev/null
+++ b/src/query/main.c
@@ -0,0 +1,887 @@
+/*
+ * dpkg-query - program for query the dpkg database
+ * querycmd.c - status enquiry and listing options
+ *
+ * Copyright © 1995,1996 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2000,2001 Wichert Akkerman <wakkerma@debian.org>
+ * Copyright © 2006-2015 Guillem Jover <guillem@debian.org>
+ * Copyright © 2011 Linaro Limited
+ * Copyright © 2011 Raphaël Hertzog <hertzog@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#if HAVE_LOCALE_H
+#include <locale.h>
+#endif
+#include <errno.h>
+#include <limits.h>
+#include <string.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <fnmatch.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/debug.h>
+#include <dpkg/pkg-array.h>
+#include <dpkg/pkg-spec.h>
+#include <dpkg/pkg-format.h>
+#include <dpkg/pkg-show.h>
+#include <dpkg/string.h>
+#include <dpkg/path.h>
+#include <dpkg/file.h>
+#include <dpkg/pager.h>
+#include <dpkg/options.h>
+#include <dpkg/db-ctrl.h>
+#include <dpkg/db-fsys.h>
+
+#include "actions.h"
+
+static const char *opt_showformat = "${binary:Package}\t${Version}\n";
+
+static int opt_loadavail = 0;
+
+static int
+pkg_array_match_patterns(struct pkg_array *array,
+                         pkg_array_visitor_func *pkg_visitor, void *pkg_data,
+                         const char *const *argv)
+{
+  int argc, i, ip, *found;
+  int rc = 0;
+  struct pkg_spec *ps;
+
+  for (argc = 0; argv[argc]; argc++);
+  found = m_calloc(argc, sizeof(int));
+
+  ps = m_malloc(sizeof(*ps) * argc);
+  for (ip = 0; ip < argc; ip++) {
+    pkg_spec_init(&ps[ip], PKG_SPEC_PATTERNS | PKG_SPEC_ARCH_WILDCARD);
+    pkg_spec_parse(&ps[ip], argv[ip]);
+  }
+
+  for (i = 0; i < array->n_pkgs; i++) {
+    struct pkginfo *pkg;
+    bool pkg_found = false;
+
+    pkg = array->pkgs[i];
+    for (ip = 0; ip < argc; ip++) {
+      if (pkg_spec_match_pkg(&ps[ip], pkg, &pkg->installed)) {
+        pkg_found = true;
+        found[ip]++;
+      }
+    }
+    if (!pkg_found)
+      array->pkgs[i] = NULL;
+  }
+
+  pkg_array_foreach(array, pkg_visitor, pkg_data);
+
+  for (ip = 0; ip < argc; ip++) {
+    if (!found[ip]) {
+      notice(_("no packages found matching %s"), argv[ip]);
+      rc++;
+    }
+    pkg_spec_destroy(&ps[ip]);
+  }
+
+  free(ps);
+  free(found);
+
+  return rc;
+}
+
+struct list_format {
+  bool head;
+  int nw;
+  int vw;
+  int aw;
+  int dw;
+};
+
+static void
+list_format_init(struct list_format *fmt, struct pkg_array *array)
+{
+  int i;
+
+  if (fmt->nw != 0)
+    return;
+
+  fmt->nw = 14;
+  fmt->vw = 12;
+  fmt->aw = 12;
+  fmt->dw = 33;
+
+  for (i = 0; i < array->n_pkgs; i++) {
+    int plen, vlen, alen, dlen;
+
+    if (array->pkgs[i] == NULL)
+      continue;
+
+    plen = str_width(pkg_name(array->pkgs[i], pnaw_nonambig));
+    vlen = str_width(versiondescribe(&array->pkgs[i]->installed.version,
+                                     vdew_nonambig));
+    alen = str_width(dpkg_arch_describe(array->pkgs[i]->installed.arch));
+    pkg_synopsis(array->pkgs[i], &dlen);
+
+    if (plen > fmt->nw)
+      fmt->nw = plen;
+    if (vlen > fmt->vw)
+      fmt->vw = vlen;
+    if (alen > fmt->aw)
+      fmt->aw = alen;
+    if (dlen > fmt->dw)
+      fmt->dw = dlen;
+  }
+}
+
+static void
+list_format_print(struct list_format *fmt,
+                  int c_want, int c_status, int c_eflag,
+                  const char *name, const char *version, const char *arch,
+                  const char *desc, int desc_len)
+{
+  struct str_crop_info ns, vs, as, ds;
+
+  str_gen_crop(name, fmt->nw, &ns);
+  str_gen_crop(version, fmt->vw, &vs);
+  str_gen_crop(arch, fmt->aw, &as);
+  str_gen_crop(desc, desc_len, &ds);
+
+  printf("%c%c%c %-*.*s %-*.*s %-*.*s %.*s\n", c_want, c_status, c_eflag,
+         ns.max_bytes, ns.str_bytes, name,
+         vs.max_bytes, vs.str_bytes, version,
+         as.max_bytes, as.str_bytes, arch,
+         ds.str_bytes, desc);
+}
+
+static void
+list_format_print_header(struct list_format *fmt)
+{
+  int l;
+
+  if (fmt->head)
+    return;
+
+  /* TRANSLATORS: This is the header that appears on 'dpkg-query -l'. The
+   * string should remain under 80 characters. The uppercase letters in
+   * the state values denote the abbreviated letter that will appear on
+   * the first three columns, which should ideally match the English one
+   * (e.g. Remove → supRimeix), see dpkg-query(1) for further details. The
+   * translated message can use additional lines if needed. */
+  fputs(_("\
+Desired=Unknown/Install/Remove/Purge/Hold\n\
+| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend\n\
+|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)\n"), stdout);
+  list_format_print(fmt, '|', '|', '/', _("Name"), _("Version"),
+                    _("Architecture"), _("Description"), fmt->dw);
+
+  /* Status */
+  printf("+++-");
+
+ /* Package name. */
+  for (l = 0; l < fmt->nw; l++)
+    printf("=");
+  printf("-");
+
+  /* Version. */
+  for (l = 0; l < fmt->vw; l++)
+    printf("=");
+  printf("-");
+
+  /* Architecture. */
+  for (l = 0; l < fmt->aw; l++)
+    printf("=");
+  printf("-");
+
+  /* Description. */
+  for (l = 0; l < fmt->dw; l++)
+    printf("=");
+  printf("\n");
+
+  fmt->head = true;
+}
+
+static void
+pkg_array_list_item(struct pkg_array *array, struct pkginfo *pkg, void *pkg_data)
+{
+  struct list_format *fmt = pkg_data;
+  int l;
+  const char *pdesc;
+
+  list_format_init(fmt, array);
+  list_format_print_header(fmt);
+
+  pdesc = pkg_synopsis(pkg, &l);
+  l = min(l, fmt->dw);
+
+  list_format_print(fmt,
+                    pkg_abbrev_want(pkg),
+                    pkg_abbrev_status(pkg),
+                    pkg_abbrev_eflag(pkg),
+                    pkg_name(pkg, pnaw_nonambig),
+                    versiondescribe(&pkg->installed.version, vdew_nonambig),
+                    dpkg_arch_describe(pkg->installed.arch),
+                    pdesc, l);
+}
+
+static int
+listpackages(const char *const *argv)
+{
+  struct pkg_array array;
+  int rc = 0;
+  struct list_format fmt;
+  struct pager *pager;
+
+  if (!opt_loadavail)
+    modstatdb_open(msdbrw_readonly);
+  else
+    modstatdb_open(msdbrw_readonly | msdbrw_available_readonly);
+
+  pkg_array_init_from_hash(&array);
+  pkg_array_sort(&array, pkg_sorter_by_nonambig_name_arch);
+
+  memset(&fmt, 0, sizeof(fmt));
+
+  pager = pager_spawn(_("showing package list on pager"));
+
+  if (!*argv) {
+    int i;
+
+    for (i = 0; i < array.n_pkgs; i++) {
+      struct pkginfo *pkg;
+
+      pkg = array.pkgs[i];
+      if (pkg->status == PKG_STAT_NOTINSTALLED)
+        array.pkgs[i] = NULL;
+    }
+
+    pkg_array_foreach(&array, pkg_array_list_item, &fmt);
+  } else {
+    rc = pkg_array_match_patterns(&array, pkg_array_list_item, &fmt, argv);
+  }
+
+  m_output(stdout, _("<standard output>"));
+  m_output(stderr, _("<standard error>"));
+
+  pager_reap(pager);
+
+  pkg_array_destroy(&array);
+  modstatdb_shutdown();
+
+  return rc;
+}
+
+static int
+searchoutput(struct fsys_namenode *namenode)
+{
+  struct fsys_node_pkgs_iter *iter;
+  struct pkginfo *pkg_owner;
+  int found;
+
+  if (namenode->divert) {
+    const char *name_from = namenode->divert->camefrom ?
+                            namenode->divert->camefrom->name : namenode->name;
+    const char *name_to = namenode->divert->useinstead ?
+                          namenode->divert->useinstead->name : namenode->name;
+
+    if (namenode->divert->pkgset) {
+      printf(_("diversion by %s from: %s\n"),
+             namenode->divert->pkgset->name, name_from);
+      printf(_("diversion by %s to: %s\n"),
+             namenode->divert->pkgset->name, name_to);
+    } else {
+      printf(_("local diversion from: %s\n"), name_from);
+      printf(_("local diversion to: %s\n"), name_to);
+    }
+  }
+  found= 0;
+
+  iter = fsys_node_pkgs_iter_new(namenode);
+  while ((pkg_owner = fsys_node_pkgs_iter_next(iter))) {
+    if (found)
+      fputs(", ", stdout);
+    fputs(pkg_name(pkg_owner, pnaw_nonambig), stdout);
+    found++;
+  }
+  fsys_node_pkgs_iter_free(iter);
+
+  if (found) printf(": %s\n",namenode->name);
+  return found + (namenode->divert ? 1 : 0);
+}
+
+static int
+searchfiles(const char *const *argv)
+{
+  const char *thisarg;
+  int failures = 0;
+  struct varbuf path = VARBUF_INIT;
+  static struct varbuf vb;
+
+  if (!*argv)
+    badusage(_("--search needs at least one file name pattern argument"));
+
+  modstatdb_open(msdbrw_readonly);
+  ensure_allinstfiles_available_quiet();
+  ensure_diversions();
+
+  while ((thisarg = *argv++) != NULL) {
+    struct fsys_namenode *namenode;
+    int found = 0;
+
+    if (!strchr("*[?/",*thisarg)) {
+      varbuf_reset(&vb);
+      varbuf_add_char(&vb, '*');
+      varbuf_add_str(&vb, thisarg);
+      varbuf_add_char(&vb, '*');
+      varbuf_end_str(&vb);
+      thisarg= vb.buf;
+    }
+    if (!strpbrk(thisarg, "*[?\\")) {
+      /* Trim trailing ‘/’ and ‘/.’ from the argument if it is not
+       * a pattern, just a pathname. */
+      varbuf_set_str(&path, thisarg);
+      varbuf_trunc(&path, path_trim_slash_slashdot(path.buf));
+
+      namenode = fsys_hash_find_node(path.buf, FHFF_NONE);
+      found += searchoutput(namenode);
+    } else {
+      struct fsys_hash_iter *iter;
+
+      iter = fsys_hash_iter_new();
+      while ((namenode = fsys_hash_iter_next(iter)) != NULL) {
+        if (fnmatch(thisarg,namenode->name,0)) continue;
+        found+= searchoutput(namenode);
+      }
+      fsys_hash_iter_free(iter);
+    }
+    if (!found) {
+      notice(_("no path found matching pattern %s"), thisarg);
+      failures++;
+      m_output(stderr, _("<standard error>"));
+    } else {
+      m_output(stdout, _("<standard output>"));
+    }
+  }
+  modstatdb_shutdown();
+
+  varbuf_destroy(&path);
+
+  return failures;
+}
+
+static int
+print_status(const char *const *argv)
+{
+  int failures = 0;
+
+  modstatdb_open(msdbrw_readonly);
+
+  if (!*argv) {
+    writedb_stanzas(stdout, _("<standard output>"), 0);
+  } else {
+    const char *thisarg;
+
+    while ((thisarg = *argv++) != NULL) {
+      struct pkginfo *pkg;
+
+      pkg = dpkg_options_parse_pkgname(cipaction, thisarg);
+
+      if (pkg->status == PKG_STAT_NOTINSTALLED &&
+          pkg->priority == PKG_PRIO_UNKNOWN &&
+          str_is_unset(pkg->section) &&
+          !pkg->archives &&
+          pkg->want == PKG_WANT_UNKNOWN &&
+          !pkg_is_informative(pkg, &pkg->installed)) {
+        notice(_("package '%s' is not installed and no information is available"),
+               pkg_name(pkg, pnaw_nonambig));
+        failures++;
+      } else {
+        write_stanza(stdout, _("<standard output>"), pkg, &pkg->installed);
+      }
+
+      if (*argv != NULL)
+        putchar('\n');
+    }
+  }
+
+  m_output(stdout, _("<standard output>"));
+  if (failures) {
+    fputs(_("Use dpkg --info (= dpkg-deb --info) to examine archive files.\n"),
+          stderr);
+    m_output(stderr, _("<standard error>"));
+  }
+
+  modstatdb_shutdown();
+
+  return failures;
+}
+
+static int
+print_avail(const char *const *argv)
+{
+  int failures = 0;
+
+  modstatdb_open(msdbrw_readonly | msdbrw_available_readonly);
+
+  if (!*argv) {
+    writedb_stanzas(stdout, _("<standard output>"), wdb_dump_available);
+  } else {
+    const char *thisarg;
+
+    while ((thisarg = *argv++) != NULL) {
+      struct pkginfo *pkg;
+
+      pkg = dpkg_options_parse_pkgname(cipaction, thisarg);
+
+      if (!pkg_is_informative(pkg, &pkg->available)) {
+        notice(_("package '%s' is not available"),
+               pkgbin_name(pkg, &pkg->available, pnaw_nonambig));
+        failures++;
+      } else {
+        write_stanza(stdout, _("<standard output>"), pkg, &pkg->available);
+      }
+
+      if (*argv != NULL)
+        putchar('\n');
+    }
+  }
+
+  m_output(stdout, _("<standard output>"));
+  if (failures)
+    m_output(stderr, _("<standard error>"));
+
+  modstatdb_shutdown();
+
+  return failures;
+}
+
+static int
+list_files(const char *const *argv)
+{
+  const char *thisarg;
+  struct fsys_namenode_list *file;
+  struct pkginfo *pkg;
+  struct fsys_namenode *namenode;
+  int failures = 0;
+
+  if (!*argv)
+    badusage(_("--%s needs at least one package name argument"), cipaction->olong);
+
+  modstatdb_open(msdbrw_readonly);
+
+  while ((thisarg = *argv++) != NULL) {
+    pkg = dpkg_options_parse_pkgname(cipaction, thisarg);
+
+    switch (pkg->status) {
+    case PKG_STAT_NOTINSTALLED:
+      notice(_("package '%s' is not installed"),
+             pkg_name(pkg, pnaw_nonambig));
+      failures++;
+      break;
+    default:
+      ensure_packagefiles_available(pkg);
+      ensure_diversions();
+      file = pkg->files;
+      if (!file) {
+        printf(_("Package '%s' does not contain any files (!)\n"),
+               pkg_name(pkg, pnaw_nonambig));
+      } else {
+        while (file) {
+          namenode = file->namenode;
+          puts(namenode->name);
+          if (namenode->divert && !namenode->divert->camefrom) {
+            if (!namenode->divert->pkgset)
+              printf(_("locally diverted to: %s\n"),
+                     namenode->divert->useinstead->name);
+            else if (pkg->set == namenode->divert->pkgset)
+              printf(_("package diverts others to: %s\n"),
+                     namenode->divert->useinstead->name);
+            else
+              printf(_("diverted by %s to: %s\n"),
+                     namenode->divert->pkgset->name,
+                     namenode->divert->useinstead->name);
+          }
+          file = file->next;
+        }
+      }
+      break;
+    }
+
+    if (*argv != NULL)
+      putchar('\n');
+  }
+
+  m_output(stdout, _("<standard output>"));
+  if (failures) {
+    fputs(_("Use dpkg --contents (= dpkg-deb --contents) to list archive files contents.\n"),
+             stderr);
+    m_output(stderr, _("<standard error>"));
+  }
+
+  modstatdb_shutdown();
+
+  return failures;
+}
+
+static void
+pkg_array_load_db_fsys(struct pkg_array *array, struct pkginfo *pkg, void *pkg_data)
+{
+  ensure_packagefiles_available(pkg);
+}
+
+static void
+pkg_array_show_item(struct pkg_array *array, struct pkginfo *pkg, void *pkg_data)
+{
+  struct pkg_format_node *fmt = pkg_data;
+
+  pkg_format_show(fmt, pkg, &pkg->installed);
+}
+
+static int
+showpackages(const char *const *argv)
+{
+  struct dpkg_error err;
+  struct pkg_array array;
+  struct pkg_format_node *fmt;
+  bool fmt_needs_db_fsys;
+  int rc = 0;
+
+  fmt = pkg_format_parse(opt_showformat, &err);
+  if (!fmt) {
+    notice(_("error in show format: %s"), err.str);
+    dpkg_error_destroy(&err);
+    rc++;
+    return rc;
+  }
+
+  fmt_needs_db_fsys = pkg_format_needs_db_fsys(fmt);
+
+  if (!opt_loadavail)
+    modstatdb_open(msdbrw_readonly);
+  else
+    modstatdb_open(msdbrw_readonly | msdbrw_available_readonly);
+
+  pkg_array_init_from_hash(&array);
+  pkg_array_sort(&array, pkg_sorter_by_nonambig_name_arch);
+
+  if (!*argv) {
+    int i;
+
+    if (fmt_needs_db_fsys)
+      ensure_allinstfiles_available_quiet();
+    for (i = 0; i < array.n_pkgs; i++) {
+      struct pkginfo *pkg;
+
+      pkg = array.pkgs[i];
+      if (pkg->status == PKG_STAT_NOTINSTALLED)
+        continue;
+      pkg_format_show(fmt, pkg, &pkg->installed);
+    }
+  } else {
+    if (fmt_needs_db_fsys)
+      pkg_array_foreach(&array, pkg_array_load_db_fsys, NULL);
+    rc = pkg_array_match_patterns(&array, pkg_array_show_item, fmt, argv);
+  }
+
+  m_output(stdout, _("<standard output>"));
+  m_output(stderr, _("<standard error>"));
+
+  pkg_array_destroy(&array);
+  pkg_format_free(fmt);
+  modstatdb_shutdown();
+
+  return rc;
+}
+
+static bool
+pkg_infodb_is_internal(const char *filetype)
+{
+  /* Do not expose internal database files. */
+  if (strcmp(filetype, LISTFILE) == 0 ||
+      strcmp(filetype, CONFFILESFILE) == 0)
+    return true;
+
+  if (strlen(filetype) > MAXCONTROLFILENAME)
+    return true;
+
+  return false;
+}
+
+static void
+pkg_infodb_check_filetype(const char *filetype)
+{
+  const char *c;
+
+  /* Validate control file name for sanity. */
+  for (c = "/."; *c; c++)
+    if (strchr(filetype, *c))
+      badusage(_("control file contains %c"), *c);
+}
+
+static void
+pkg_infodb_print_filename(const char *filename, const char *filetype)
+{
+  if (pkg_infodb_is_internal(filetype))
+    return;
+
+  printf("%s\n", filename);
+}
+
+static void
+pkg_infodb_print_filetype(const char *filename, const char *filetype)
+{
+  if (pkg_infodb_is_internal(filetype))
+    return;
+
+  printf("%s\n", filetype);
+}
+
+static void
+control_path_file(struct pkginfo *pkg, const char *control_file)
+{
+  const char *control_pathname;
+  struct stat st;
+
+  control_pathname = pkg_infodb_get_file(pkg, &pkg->installed, control_file);
+  if (stat(control_pathname, &st) < 0)
+    return;
+  if (!S_ISREG(st.st_mode))
+    return;
+
+  pkg_infodb_print_filename(control_pathname, control_file);
+}
+
+static int
+control_path(const char *const *argv)
+{
+  struct pkginfo *pkg;
+  const char *pkgname;
+  const char *control_file;
+
+  pkgname = *argv++;
+  if (!pkgname)
+    badusage(_("--%s needs at least one package name argument"),
+             cipaction->olong);
+
+  control_file = *argv++;
+  if (control_file && *argv)
+    badusage(_("--%s takes at most two arguments"), cipaction->olong);
+
+  if (control_file)
+    pkg_infodb_check_filetype(control_file);
+
+  modstatdb_open(msdbrw_readonly);
+
+  pkg = dpkg_options_parse_pkgname(cipaction, pkgname);
+  if (pkg->status == PKG_STAT_NOTINSTALLED)
+    ohshit(_("package '%s' is not installed"),
+           pkg_name(pkg, pnaw_nonambig));
+
+  if (control_file)
+    control_path_file(pkg, control_file);
+  else
+    pkg_infodb_foreach(pkg, &pkg->installed, pkg_infodb_print_filename);
+
+  modstatdb_shutdown();
+
+  return 0;
+}
+
+static int
+control_list(const char *const *argv)
+{
+  struct pkginfo *pkg;
+  const char *pkgname;
+
+  pkgname = *argv++;
+  if (!pkgname || *argv)
+    badusage(_("--%s takes one package name argument"), cipaction->olong);
+
+  modstatdb_open(msdbrw_readonly);
+
+  pkg = dpkg_options_parse_pkgname(cipaction, pkgname);
+  if (pkg->status == PKG_STAT_NOTINSTALLED)
+    ohshit(_("package '%s' is not installed"), pkg_name(pkg, pnaw_nonambig));
+
+  pkg_infodb_foreach(pkg, &pkg->installed, pkg_infodb_print_filetype);
+
+  modstatdb_shutdown();
+
+  return 0;
+}
+
+static int
+control_show(const char *const *argv)
+{
+  struct pkginfo *pkg;
+  const char *pkgname;
+  const char *filename;
+  const char *control_file;
+
+  pkgname = *argv++;
+  if (!pkgname || !*argv)
+    badusage(_("--%s takes exactly two arguments"),
+             cipaction->olong);
+
+  control_file = *argv++;
+  if (!control_file || *argv)
+    badusage(_("--%s takes exactly two arguments"), cipaction->olong);
+
+  pkg_infodb_check_filetype(control_file);
+
+  modstatdb_open(msdbrw_readonly);
+
+  pkg = dpkg_options_parse_pkgname(cipaction, pkgname);
+  if (pkg->status == PKG_STAT_NOTINSTALLED)
+    ohshit(_("package '%s' is not installed"), pkg_name(pkg, pnaw_nonambig));
+
+  if (pkg_infodb_has_file(pkg, &pkg->installed, control_file))
+    filename = pkg_infodb_get_file(pkg, &pkg->installed, control_file);
+  else
+    ohshit(_("control file '%s' does not exist"), control_file);
+
+  modstatdb_shutdown();
+
+  file_show(filename);
+
+  return 0;
+}
+
+static void
+set_no_pager(const struct cmdinfo *ci, const char *value)
+{
+  pager_enable(false);
+}
+
+static int
+printversion(const char *const *argv)
+{
+  printf(_("Debian %s package management program query tool version %s.\n"),
+         DPKGQUERY, PACKAGE_RELEASE);
+  printf(_(
+"This is free software; see the GNU General Public License version 2 or\n"
+"later for copying conditions. There is NO warranty.\n"));
+
+  m_output(stdout, _("<standard output>"));
+
+  return 0;
+}
+
+static int
+usage(const char *const *argv)
+{
+  printf(_(
+"Usage: %s [<option>...] <command>\n"
+"\n"), DPKGQUERY);
+
+  printf(_(
+"Commands:\n"
+"  -s, --status [<package>...]      Display package status details.\n"
+"  -p, --print-avail [<package>...] Display available version details.\n"
+"  -L, --listfiles <package>...     List files 'owned' by package(s).\n"
+"  -l, --list [<pattern>...]        List packages concisely.\n"
+"  -W, --show [<pattern>...]        Show information on package(s).\n"
+"  -S, --search <pattern>...        Find package(s) owning file(s).\n"
+"      --control-list <package>     Print the package control file list.\n"
+"      --control-show <package> <file>\n"
+"                                   Show the package control file.\n"
+"  -c, --control-path <package> [<file>]\n"
+"                                   Print path for package control file.\n"
+"\n"));
+
+  printf(_(
+"  -?, --help                       Show this help message.\n"
+"      --version                    Show the version.\n"
+"\n"));
+
+  printf(_(
+"Options:\n"
+"  --admindir=<directory>           Use <directory> instead of %s.\n"
+"  --root=<directory>               Use <directory> instead of %s.\n"
+"  --load-avail                     Use available file on --show and --list.\n"
+"  --no-pager                       Disables the use of any pager.\n"
+"  -f|--showformat=<format>         Use alternative format for --show.\n"
+"\n"), ADMINDIR, "/");
+
+  printf(_(
+"Format syntax:\n"
+"  A format is a string that will be output for each package. The format\n"
+"  can include the standard escape sequences \\n (newline), \\r (carriage\n"
+"  return) or \\\\ (plain backslash). Package information can be included\n"
+"  by inserting variable references to package fields using the ${var[;width]}\n"
+"  syntax. Fields will be right-aligned unless the width is negative in which\n"
+"  case left alignment will be used.\n"));
+
+  m_output(stdout, _("<standard output>"));
+
+  return 0;
+}
+
+static const char printforhelp[] = N_(
+"Use --help for help about querying packages.");
+
+/* This table has both the action entries in it and the normal options.
+ * The action entries are made with the ACTION macro, as they all
+ * have a very similar structure. */
+static const struct cmdinfo cmdinfos[]= {
+  ACTION( "listfiles",                      'L', act_listfiles,     list_files      ),
+  ACTION( "status",                         's', act_status,        print_status    ),
+  ACTION( "print-avail",                    'p', act_printavail,    print_avail     ),
+  ACTION( "list",                           'l', act_listpackages,  listpackages    ),
+  ACTION( "search",                         'S', act_searchfiles,   searchfiles     ),
+  ACTION( "show",                           'W', act_listpackages,  showpackages    ),
+  ACTION( "control-path",                   'c', act_controlpath,   control_path    ),
+  ACTION( "control-list",                    0,  act_controllist,   control_list    ),
+  ACTION( "control-show",                    0,  act_controlshow,   control_show    ),
+  ACTION( "help",                           '?', act_help,          usage           ),
+  ACTION( "version",                         0,  act_version,       printversion    ),
+
+  { "admindir",   0,   1, NULL, NULL,        set_admindir, 0 },
+  { "root",       0,   1, NULL, NULL,        set_root, 0   },
+  { "load-avail", 0,   0, &opt_loadavail, NULL, NULL, 1    },
+  { "showformat", 'f', 1, NULL, &opt_showformat, NULL      },
+  { "no-pager",   0,   0, NULL, NULL,        set_no_pager  },
+  {  NULL,        0,   0, NULL, NULL,        NULL          }
+};
+
+int main(int argc, const char *const *argv) {
+  int ret;
+
+  dpkg_set_report_piped_mode(_IOFBF);
+  dpkg_locales_init(PACKAGE);
+  dpkg_program_init("dpkg-query");
+  dpkg_options_parse(&argv, cmdinfos, printforhelp);
+
+  debug(dbg_general, "root=%s admindir=%s", dpkg_fsys_get_dir(), dpkg_db_get_dir());
+
+  if (!cipaction) badusage(_("need an action option"));
+
+  ret = cipaction->action(argv);
+
+  dpkg_program_done();
+  dpkg_locales_done();
+
+  return !!ret;
+}
diff --git a/src/sh/dpkg-error.sh b/src/sh/dpkg-error.sh
new file mode 100644
index 0000000..b7f968e
--- /dev/null
+++ b/src/sh/dpkg-error.sh
@@ -0,0 +1,93 @@
+#
+# Copyright © 2010 Raphaël Hertzog <hertzog@debian.org>
+# Copyright © 2011-2015 Guillem Jover <guillem@debian.org>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+#
+# shellcheck shell=sh
+
+# Standard ANSI colors and attributes.
+COLOR_NORMAL=''
+COLOR_RESET=''
+COLOR_BOLD=''
+COLOR_BLACK=''
+COLOR_RED=''
+COLOR_GREEN=''
+COLOR_YELLOW=''
+COLOR_BLUE=''
+COLOR_MAGENTA=''
+COLOR_CYAN=''
+COLOR_WHITE=''
+COLOR_BOLD_BLACK=''
+COLOR_BOLD_RED=''
+COLOR_BOLD_GREEN=''
+COLOR_BOLD_YELLOW=''
+COLOR_BOLD_BLUE=''
+COLOR_BOLD_MAGENTA=''
+COLOR_BOLD_CYAN=''
+COLOR_BOLD_WHITE=''
+
+setup_colors()
+{
+  : "${DPKG_COLORS=auto}"
+
+  case "$DPKG_COLORS" in
+  auto)
+    if [ -t 1 ]; then
+      USE_COLORS=yes
+    else
+      USE_COLORS=no
+    fi
+    ;;
+  always)
+    USE_COLORS=yes
+    ;;
+  *)
+    USE_COLORS=no
+    ;;
+  esac
+
+  if [ $USE_COLORS = yes ]; then
+    COLOR_PROG="$COLOR_BOLD"
+    COLOR_INFO="$COLOR_GREEN"
+    COLOR_NOTICE="$COLOR_YELLOW"
+    COLOR_WARN="$COLOR_BOLD_YELLOW"
+    COLOR_ERROR="$COLOR_BOLD_RED"
+  else
+    COLOR_RESET=""
+  fi
+  FMT_PROG="$COLOR_PROG$PROGNAME$COLOR_RESET"
+}
+
+debug() {
+  if [ -n "$DPKG_DEBUG" ]; then
+    echo "DEBUG: $FMT_PROG: $*" >&2
+  fi
+}
+
+error() {
+  echo "$FMT_PROG: ${COLOR_ERROR}error${COLOR_RESET}: $*" >&2
+  exit 1
+}
+
+warning() {
+  echo "$FMT_PROG: ${COLOR_WARN}warning${COLOR_RESET}: $*" >&2
+}
+
+badusage() {
+  echo "$FMT_PROG: ${COLOR_ERROR}error${COLOR_RESET}: $1" >&2
+  echo >&2
+  echo "Use '$PROGNAME --help' for program usage information." >&2
+  exit 1
+}
diff --git a/src/split/dpkg-split.h b/src/split/dpkg-split.h
new file mode 100644
index 0000000..f53e0c5
--- /dev/null
+++ b/src/split/dpkg-split.h
@@ -0,0 +1,84 @@
+/*
+ * dpkg-split - splitting and joining of multipart *.deb archives
+ * dpkg-split.h - external definitions for this program
+ *
+ * Copyright © 1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2008-2012 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef DPKG_SPLIT_H
+#define DPKG_SPLIT_H
+
+#include <dpkg/ar.h>
+#include <dpkg/deb-version.h>
+
+action_func do_split;
+action_func do_join;
+action_func do_info;
+action_func do_auto;
+action_func do_queue;
+action_func do_discard;
+
+struct partinfo {
+  struct deb_version fmtversion;
+  const char *filename;
+  const char *package;
+  const char *version;
+  const char *arch;
+  const char *md5sum;
+  off_t orglength;
+  int thispartn, maxpartn;
+  off_t maxpartlen;
+  off_t thispartoffset;
+  off_t thispartlen;
+  /** Size of header in part file. */
+  off_t headerlen;
+  off_t filesize;
+};
+
+struct partqueue {
+  struct partqueue *nextinqueue;
+
+  /** Only fields filename, md5sum, maxpartlen, thispartn, maxpartn
+   * are valid; the rest are NULL. If the file is not named correctly
+   * to be a part file md5sum is NULL too and the numbers are zero. */
+  struct partinfo info;
+};
+
+extern off_t opt_maxpartsize;
+extern const char *opt_depotdir;
+extern const char *opt_outputfile;
+extern int opt_npquiet;
+extern int opt_msdos;
+
+void read_fail(int rc, const char *filename, const char *what) DPKG_ATTR_NORET;
+void print_info(const struct partinfo *pi);
+struct partinfo *read_info(struct dpkg_ar *ar, struct partinfo *ir);
+
+void reassemble(struct partinfo **partlist, const char *outputfile);
+void mustgetpartinfo(const char *filename, struct partinfo *ri);
+void addtopartlist(struct partinfo**, struct partinfo*, struct partinfo *refi);
+
+#define SPLITVERSION       "2.1"
+
+#define PARTSDIR          "parts"
+
+#define PARTMAGIC         "debian-split"
+#define HEADERALLOWANCE    1024
+
+#define SPLITPARTDEFMAX    (450 * 1024)
+
+#endif /* DPKG_SPLIT_H */
diff --git a/src/split/info.c b/src/split/info.c
new file mode 100644
index 0000000..7fe9a08
--- /dev/null
+++ b/src/split/info.c
@@ -0,0 +1,292 @@
+/*
+ * dpkg-split - splitting and joining of multipart *.deb archives
+ * info.c - information about split archives
+ *
+ * Copyright © 1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2008-2012 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/stat.h>
+
+#include <errno.h>
+#include <limits.h>
+#include <string.h>
+#include <unistd.h>
+#include <inttypes.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/c-ctype.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/fdio.h>
+#include <dpkg/ar.h>
+#include <dpkg/options.h>
+
+#include "dpkg-split.h"
+
+static intmax_t
+parse_intmax(const char *value, const char *fn, const char *what)
+{
+  intmax_t ret;
+  char *endp;
+
+  errno = 0;
+  ret = strtoimax(value, &endp, 10);
+  if (value == endp || *endp)
+    ohshit(_("file '%.250s' is corrupt - bad digit (code %d) in %s"),
+           fn, *endp, what);
+  if (ret < 0 || errno == ERANGE)
+    ohshit(_("file '%s' is corrupt; out of range integer in %s"), fn, what);
+
+  return ret;
+}
+
+static char *nextline(char **ripp, const char *fn, const char *what) {
+  char *newline, *rip;
+
+  rip= *ripp;
+  if (!rip)
+    ohshit(_("file '%.250s' is corrupt - %.250s missing"), fn, what);
+  newline= strchr(rip,'\n');
+  if (!newline)
+    ohshit(_("file '%.250s' is corrupt - missing newline after %.250s"),
+           fn, what);
+  *ripp= newline+1;
+
+  str_rtrim_spaces(rip, newline);
+
+  return rip;
+}
+
+/**
+ * Read a deb-split part archive.
+ *
+ * @return Part info (nfmalloc'd) if was an archive part and we read it,
+ *         NULL if it wasn't.
+ */
+struct partinfo *
+read_info(struct dpkg_ar *ar, struct partinfo *ir)
+{
+  static struct varbuf format_member = VARBUF_INIT;
+
+  size_t thisilen;
+  intmax_t templong;
+  char magicbuf[sizeof(DPKG_AR_MAGIC) - 1], *rip, *partnums, *slash;
+  const char *err;
+  struct dpkg_ar_hdr arh;
+  ssize_t rc;
+
+  rc = fd_read(ar->fd, magicbuf, sizeof(magicbuf));
+  if (rc != sizeof(magicbuf)) {
+    if (rc < 0)
+      ohshite(_("error reading %.250s"), ar->name);
+    else
+      return NULL;
+  }
+  if (memcmp(magicbuf, DPKG_AR_MAGIC, sizeof(magicbuf)))
+    return NULL;
+
+  rc = fd_read(ar->fd, &arh, sizeof(arh));
+  if (rc != sizeof(arh))
+    read_fail(rc, ar->name, "ar header");
+
+  dpkg_ar_normalize_name(&arh);
+
+  if (strncmp(arh.ar_name, PARTMAGIC, sizeof(arh.ar_name)) != 0)
+    return NULL;
+  if (dpkg_ar_member_is_illegal(&arh))
+    ohshit(_("file '%.250s' is corrupt - bad magic at end of first header"),
+           ar->name);
+  thisilen = dpkg_ar_member_get_size(ar, &arh);
+
+  varbuf_reset(&format_member);
+  varbuf_grow(&format_member, thisilen + 2);
+
+  rc = fd_read(ar->fd, format_member.buf, thisilen + (thisilen & 1));
+  if (rc != (ssize_t)(thisilen + (thisilen & 1)))
+    read_fail(rc, ar->name, "reading header member");
+  if (thisilen & 1) {
+    int c = format_member.buf[thisilen];
+
+    if (c != '\n')
+      ohshit(_("file '%.250s' is corrupt - bad padding character (code %d)"),
+             ar->name, c);
+  }
+  varbuf_trunc(&format_member, thisilen);
+  if (memchr(format_member.buf, 0, thisilen))
+    ohshit(_("file '%.250s' is corrupt - nulls in info section"), ar->name);
+
+  ir->filename = ar->name;
+
+  rip = format_member.buf;
+  err = deb_version_parse(&ir->fmtversion,
+                          nextline(&rip, ar->name, _("format version number")));
+  if (err)
+    ohshit(_("file '%.250s' has invalid format version: %s"), ar->name, err);
+  if (ir->fmtversion.major != 2)
+    ohshit(_("file '%.250s' is format version %d.%d; get a newer dpkg-split"),
+           ar->name, ir->fmtversion.major, ir->fmtversion.minor);
+
+  ir->package = nfstrsave(nextline(&rip, ar->name, _("package name")));
+  ir->version = nfstrsave(nextline(&rip, ar->name, _("package version number")));
+  ir->md5sum = nfstrsave(nextline(&rip, ar->name, _("package file MD5 checksum")));
+  if (strlen(ir->md5sum) != MD5HASHLEN ||
+      strspn(ir->md5sum, "0123456789abcdef") != MD5HASHLEN)
+    ohshit(_("file '%.250s' is corrupt - bad MD5 checksum '%.250s'"),
+           ar->name, ir->md5sum);
+
+  ir->orglength = parse_intmax(nextline(&rip, ar->name, _("archive total size")),
+                               ar->name, _("archive total size"));
+  ir->maxpartlen = parse_intmax(nextline(&rip, ar->name, _("archive part offset")),
+                                ar->name, _("archive part offset"));
+
+  partnums = nextline(&rip, ar->name, _("archive part numbers"));
+  slash= strchr(partnums,'/');
+  if (!slash)
+    ohshit(_("file '%.250s' is corrupt - no slash between archive part numbers"), ar->name);
+  *slash++ = '\0';
+
+  templong = parse_intmax(slash, ar->name, _("number of archive parts"));
+  if (templong <= 0 || templong > INT_MAX)
+    ohshit(_("file '%.250s' is corrupt - bad number of archive parts"), ar->name);
+  ir->maxpartn= templong;
+  templong = parse_intmax(partnums, ar->name, _("archive parts number"));
+  if (templong <= 0 || templong > ir->maxpartn)
+    ohshit(_("file '%.250s' is corrupt - bad archive part number"), ar->name);
+  ir->thispartn= templong;
+
+  /* If the package was created with dpkg 1.16.1 or later it will include
+   * the architecture. */
+  if (*rip != '\0')
+    ir->arch = nfstrsave(nextline(&rip, ar->name, _("package architecture")));
+  else
+    ir->arch = NULL;
+
+  rc = fd_read(ar->fd, &arh, sizeof(arh));
+  if (rc != sizeof(arh))
+    read_fail(rc, ar->name, "reading data part member ar header");
+
+  dpkg_ar_normalize_name(&arh);
+
+  if (dpkg_ar_member_is_illegal(&arh))
+    ohshit(_("file '%.250s' is corrupt - bad magic at end of second header"),
+           ar->name);
+  if (strncmp(arh.ar_name,"data",4))
+    ohshit(_("file '%.250s' is corrupt - second member is not data member"),
+           ar->name);
+
+  ir->thispartlen = dpkg_ar_member_get_size(ar, &arh);
+  ir->thispartoffset= (ir->thispartn-1)*ir->maxpartlen;
+
+  if (ir->maxpartn != (ir->orglength+ir->maxpartlen-1)/ir->maxpartlen)
+    ohshit(_("file '%.250s' is corrupt - wrong number of parts for quoted sizes"),
+           ar->name);
+  if (ir->thispartlen !=
+      (ir->thispartn == ir->maxpartn
+       ? ir->orglength - ir->thispartoffset : ir->maxpartlen))
+    ohshit(_("file '%.250s' is corrupt - size is wrong for quoted part number"),
+           ar->name);
+
+  ir->filesize = (strlen(DPKG_AR_MAGIC) +
+                  sizeof(arh) + thisilen + (thisilen & 1) +
+                  sizeof(arh) + ir->thispartlen + (ir->thispartlen & 1));
+
+  if (S_ISREG(ar->mode)) {
+    /* Don't do this check if it's coming from a pipe or something.  It's
+     * only an extra sanity check anyway. */
+    if (ar->size < ir->filesize)
+      ohshit(_("file '%.250s' is corrupt - too short"), ar->name);
+  }
+
+  ir->headerlen = strlen(DPKG_AR_MAGIC) +
+                  sizeof(arh) + thisilen + (thisilen & 1) + sizeof(arh);
+
+  return ir;
+}
+
+void mustgetpartinfo(const char *filename, struct partinfo *ri) {
+  struct dpkg_ar *part;
+
+  part = dpkg_ar_open(filename);
+  if (!part)
+    ohshite(_("cannot open archive part file '%.250s'"), filename);
+  if (!read_info(part, ri))
+    ohshite(_("file '%.250s' is not an archive part"), filename);
+  dpkg_ar_close(part);
+}
+
+void print_info(const struct partinfo *pi) {
+  printf(_("%s:\n"
+         "    Part format version:            %d.%d\n"
+         "    Part of package:                %s\n"
+         "        ... version:                %s\n"
+         "        ... architecture:           %s\n"
+         "        ... MD5 checksum:           %s\n"
+         "        ... length:                 %jd bytes\n"
+         "        ... split every:            %jd bytes\n"
+         "    Part number:                    %d/%d\n"
+         "    Part length:                    %jd bytes\n"
+         "    Part offset:                    %jd bytes\n"
+         "    Part file size (used portion):  %jd bytes\n\n"),
+         pi->filename,
+         pi->fmtversion.major, pi->fmtversion.minor,
+         pi->package,
+         pi->version,
+         pi->arch ? pi->arch : C_("architecture", "<unknown>"),
+         pi->md5sum,
+         (intmax_t)pi->orglength,
+         (intmax_t)pi->maxpartlen,
+         pi->thispartn,
+         pi->maxpartn,
+         (intmax_t)pi->thispartlen,
+         (intmax_t)pi->thispartoffset,
+         (intmax_t)pi->filesize);
+}
+
+int
+do_info(const char *const *argv)
+{
+  const char *thisarg;
+
+  if (!*argv)
+    badusage(_("--%s requires one or more part file arguments"),
+             cipaction->olong);
+
+  while ((thisarg= *argv++)) {
+    struct partinfo *pi, ps;
+    struct dpkg_ar *part;
+
+    part = dpkg_ar_open(thisarg);
+    if (!part)
+      ohshite(_("cannot open archive part file '%.250s'"), thisarg);
+    pi = read_info(part, &ps);
+    dpkg_ar_close(part);
+    if (pi) {
+      print_info(pi);
+    } else {
+      printf(_("file '%s' is not an archive part\n"), thisarg);
+    }
+    m_output(stdout, _("<standard output>"));
+  }
+
+  return 0;
+}
diff --git a/src/split/join.c b/src/split/join.c
new file mode 100644
index 0000000..177d52b
--- /dev/null
+++ b/src/split/join.c
@@ -0,0 +1,152 @@
+/*
+ * dpkg-split - splitting and joining of multipart *.deb archives
+ * join.c - joining
+ *
+ * Copyright © 1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <limits.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/buffer.h>
+#include <dpkg/options.h>
+
+#include "dpkg-split.h"
+
+void reassemble(struct partinfo **partlist, const char *outputfile) {
+  struct dpkg_error err;
+  int fd_out;
+  int i;
+
+  printf(P_("Putting package %s together from %d part: ",
+            "Putting package %s together from %d parts: ",
+            partlist[0]->maxpartn),
+         partlist[0]->package,partlist[0]->maxpartn);
+
+  fd_out = creat(outputfile, 0644);
+  if (fd_out < 0)
+    ohshite(_("unable to open output file '%.250s'"), outputfile);
+  for (i=0; i<partlist[0]->maxpartn; i++) {
+    struct partinfo *pi = partlist[i];
+    int fd_in;
+
+    fd_in = open(pi->filename, O_RDONLY);
+    if (fd_in < 0)
+      ohshite(_("unable to (re)open input part file '%.250s'"), pi->filename);
+    if (fd_skip(fd_in, pi->headerlen, &err) < 0)
+      ohshit(_("cannot skip split package header for '%s': %s"), pi->filename,
+             err.str);
+    if (fd_fd_copy(fd_in, fd_out, pi->thispartlen, &err) < 0)
+      ohshit(_("cannot append split package part '%s' to '%s': %s"),
+             pi->filename, outputfile, err.str);
+    close(fd_in);
+
+    printf("%d ", i + 1);
+  }
+  if (fsync(fd_out))
+    ohshite(_("unable to sync file '%s'"), outputfile);
+  if (close(fd_out))
+    ohshite(_("unable to close file '%s'"), outputfile);
+
+  printf(_("done\n"));
+}
+
+
+void addtopartlist(struct partinfo **partlist,
+                   struct partinfo *pi, struct partinfo *refi) {
+  int i;
+
+  if (strcmp(pi->package,refi->package) ||
+      strcmp(pi->version,refi->version) ||
+      strcmp(pi->md5sum,refi->md5sum) ||
+      pi->orglength != refi->orglength ||
+      pi->maxpartn != refi->maxpartn ||
+      pi->maxpartlen != refi->maxpartlen) {
+    print_info(pi);
+    print_info(refi);
+    ohshit(_("files '%.250s' and '%.250s' are not parts of the same file"),
+           pi->filename,refi->filename);
+  }
+  i= pi->thispartn-1;
+  if (partlist[i])
+    ohshit(_("there are several versions of part %d - at least '%.250s' and '%.250s'"),
+           pi->thispartn, pi->filename, partlist[i]->filename);
+  partlist[i]= pi;
+}
+
+int
+do_join(const char *const *argv)
+{
+  const char *thisarg;
+  struct partqueue *queue = NULL;
+  struct partqueue *pq;
+  struct partinfo *refi, **partlist;
+  int i;
+
+  if (!*argv)
+    badusage(_("--%s requires one or more part file arguments"),
+             cipaction->olong);
+  while ((thisarg= *argv++)) {
+    pq = nfmalloc(sizeof(*pq));
+
+    mustgetpartinfo(thisarg,&pq->info);
+
+    pq->nextinqueue= queue;
+    queue= pq;
+  }
+  refi= NULL;
+  for (pq= queue; pq; pq= pq->nextinqueue)
+    if (!refi || pq->info.thispartn < refi->thispartn) refi= &pq->info;
+  if (refi == NULL)
+    internerr("empty deb part queue");
+
+  partlist = nfmalloc(sizeof(*partlist) * refi->maxpartn);
+  for (i = 0; i < refi->maxpartn; i++)
+    partlist[i] = NULL;
+  for (pq= queue; pq; pq= pq->nextinqueue) {
+    struct partinfo *pi = &pq->info;
+
+    addtopartlist(partlist,pi,refi);
+  }
+  for (i=0; i<refi->maxpartn; i++) {
+    if (!partlist[i]) ohshit(_("part %d is missing"),i+1);
+  }
+  if (!opt_outputfile) {
+    char *p;
+
+    p= nfmalloc(strlen(refi->package)+1+strlen(refi->version)+sizeof(DEBEXT));
+    strcpy(p,refi->package);
+    strcat(p, "_");
+    strcat(p,refi->version);
+    strcat(p, "_");
+    strcat(p, refi->arch ? refi->arch : "unknown");
+    strcat(p,DEBEXT);
+    opt_outputfile = p;
+  }
+  reassemble(partlist, opt_outputfile);
+
+  return 0;
+}
diff --git a/src/split/main.c b/src/split/main.c
new file mode 100644
index 0000000..eba2333
--- /dev/null
+++ b/src/split/main.c
@@ -0,0 +1,185 @@
+/*
+ * dpkg-split - splitting and joining of multipart *.deb archives
+ * main.c - main program
+ *
+ * Copyright © 1994-1996 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2006-2012 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+#include <config.h>
+#include <compat.h>
+
+#include <sys/types.h>
+
+#include <errno.h>
+#include <limits.h>
+#include <inttypes.h>
+#if HAVE_LOCALE_H
+#include <locale.h>
+#endif
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <dpkg/macros.h>
+#include <dpkg/i18n.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/debug.h>
+#include <dpkg/fsys.h>
+#include <dpkg/options.h>
+
+#include "dpkg-split.h"
+
+static int
+printversion(const char *const *argv)
+{
+  printf(_("Debian '%s' package split/join tool; version %s.\n"),
+         SPLITTER, PACKAGE_RELEASE);
+
+  printf(_(
+"This is free software; see the GNU General Public License version 2 or\n"
+"later for copying conditions. There is NO warranty.\n"));
+
+  m_output(stdout, _("<standard output>"));
+
+  return 0;
+}
+
+static int
+usage(const char *const *argv)
+{
+  printf(_(
+"Usage: %s [<option> ...] <command>\n"
+"\n"), SPLITTER);
+
+  printf(_(
+"Commands:\n"
+"  -s|--split <file> [<prefix>]     Split an archive.\n"
+"  -j|--join <part> <part> ...      Join parts together.\n"
+"  -I|--info <part> ...             Display info about a part.\n"
+"  -a|--auto -o <complete> <part>   Auto-accumulate parts.\n"
+"  -l|--listq                       List unmatched pieces.\n"
+"  -d|--discard [<filename> ...]    Discard unmatched pieces.\n"
+"\n"));
+
+  printf(_(
+"  -?, --help                       Show this help message.\n"
+"      --version                    Show the version.\n"
+"\n"));
+
+  printf(_(
+"Options:\n"
+"      --depotdir <directory>       Use <directory> instead of %s/%s.\n"
+"      --admindir <directory>       Use <directory> instead of %s.\n"
+"      --root <directory>           Use <directory> instead of %s.\n"
+"  -S, --partsize <size>            In KiB, for -s (default is 450).\n"
+"  -o, --output <file>              Filename, for -j (default is\n"
+"                                     <package>_<version>_<arch>.deb).\n"
+"  -Q, --npquiet                    Be quiet when -a is not a part.\n"
+"      --msdos                      Generate 8.3 filenames.\n"
+"\n"), ADMINDIR, PARTSDIR, ADMINDIR, "/");
+
+  printf(_(
+"Exit status:\n"
+"  0 = ok\n"
+"  1 = with --auto, file is not a part\n"
+"  2 = trouble\n"));
+
+
+  m_output(stdout, _("<standard output>"));
+
+  return 0;
+}
+
+static const char printforhelp[] = N_("Type dpkg-split --help for help.");
+
+off_t opt_maxpartsize = SPLITPARTDEFMAX;
+const char *opt_depotdir;
+const char *opt_outputfile = NULL;
+int opt_npquiet = 0;
+int opt_msdos = 0;
+
+void DPKG_ATTR_NORET
+read_fail(int rc, const char *filename, const char *what)
+{
+  if (rc >= 0)
+    ohshit(_("unexpected end of file in %s in %.255s"), what, filename);
+  else
+    ohshite(_("error reading %s from file %.255s"), what, filename);
+}
+
+static void
+set_part_size(const struct cmdinfo *cip, const char *value)
+{
+  off_t newpartsize;
+  char *endp;
+
+  errno = 0;
+  newpartsize = strtoimax(value, &endp, 10);
+  if (value == endp || *endp)
+    badusage(_("invalid integer for --%s: '%.250s'"), cip->olong, value);
+  if (newpartsize <= 0 || newpartsize > (INT_MAX >> 10) || errno == ERANGE)
+    badusage(_("part size is far too large or is not positive"));
+
+  opt_maxpartsize = newpartsize << 10;
+  if (opt_maxpartsize <= HEADERALLOWANCE)
+    badusage(_("part size must be at least %d KiB (to allow for header)"),
+             (HEADERALLOWANCE >> 10) + 1);
+}
+
+static const struct cmdinfo cmdinfos[]= {
+  ACTION("split",   's',  0,  do_split),
+  ACTION("join",    'j',  0,  do_join),
+  ACTION("info",    'I',  0,  do_info),
+  ACTION("auto",    'a',  0,  do_auto),
+  ACTION("listq",   'l',  0,  do_queue),
+  ACTION("discard", 'd',  0,  do_discard),
+  ACTION("help",    '?',  0,  usage),
+  ACTION("version",  0,   0,  printversion),
+
+  { "admindir",      0,   1,  NULL, NULL,             set_admindir,   0   },
+  { "root",          0,   1,  NULL, NULL,             set_root,       0   },
+  { "depotdir",      0,   1,  NULL, &opt_depotdir,    NULL                },
+  { "partsize",     'S',  1,  NULL, NULL,             set_part_size       },
+  { "output",       'o',  1,  NULL, &opt_outputfile,  NULL                },
+  { "npquiet",      'Q',  0,  &opt_npquiet, NULL,     NULL,           1   },
+  { "msdos",         0,   0,  &opt_msdos, NULL,       NULL,           1   },
+  {  NULL,              0                                              }
+};
+
+int main(int argc, const char *const *argv) {
+  int ret;
+
+  dpkg_locales_init(PACKAGE);
+  dpkg_program_init(SPLITTER);
+  dpkg_options_parse(&argv, cmdinfos, printforhelp);
+
+  debug(dbg_general, "root=%s admindir=%s", dpkg_fsys_get_dir(), dpkg_db_get_dir());
+
+  if (opt_depotdir == NULL)
+    opt_depotdir = dpkg_db_get_path(PARTSDIR);
+
+  if (!cipaction) badusage(_("need an action option"));
+
+  ret = cipaction->action(argv);
+
+  m_output(stderr, _("<standard error>"));
+
+  dpkg_program_done();
+  dpkg_locales_done();
+
+  return ret;
+}
diff --git a/src/split/queue.c b/src/split/queue.c
new file mode 100644
index 0000000..0a7ba8b
--- /dev/null
+++ b/src/split/queue.c
@@ -0,0 +1,374 @@
+/*
+ * dpkg-split - splitting and joining of multipart *.deb archives
+ * queue.c - queue management
+ *
+ * Copyright © 1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2008-2014 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/stat.h>
+
+#include <errno.h>
+#include <limits.h>
+#include <inttypes.h>
+#include <string.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <unistd.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/dir.h>
+#include <dpkg/buffer.h>
+#include <dpkg/options.h>
+
+#include "dpkg-split.h"
+
+/*
+ * The queue, by default located in /var/lib/dpkg/parts/, is a plain
+ * directory with one file per part.
+ *
+ * Each part is named “<md5sum>.<maxpartlen>.<thispartn>.<maxpartn>”,
+ * with all numbers in hex.
+ */
+
+
+static bool
+decompose_filename(const char *filename, struct partqueue *pq)
+{
+  const char *p;
+  char *q;
+
+  if (strspn(filename, "0123456789abcdef") != MD5HASHLEN ||
+      filename[MD5HASHLEN] != '.')
+    return false;
+
+  pq->info.md5sum = nfstrnsave(filename, MD5HASHLEN);
+
+  p = filename + MD5HASHLEN + 1;
+  errno = 0;
+  pq->info.maxpartlen = strtoimax(p, &q, 16);
+  if (q == p || *q++ != '.' || errno != 0)
+    return false;
+
+  p = q;
+  pq->info.thispartn = (int)strtol(p, &q, 16);
+  if (q == p || *q++ != '.' || pq->info.thispartn < 0 || errno != 0)
+    return false;
+
+  p = q;
+  pq->info.maxpartn = (int)strtol(p, &q, 16);
+  if (q == p || *q || pq->info.maxpartn < 0 || errno != 0)
+    return false;
+
+  return true;
+}
+
+static struct partqueue *
+scandepot(void)
+{
+  DIR *depot;
+  struct dirent *de;
+  struct partqueue *queue = NULL;
+
+  depot = opendir(opt_depotdir);
+  if (!depot) {
+    if (errno == ENOENT)
+      return NULL;
+
+    ohshite(_("unable to read depot directory '%.250s'"), opt_depotdir);
+  }
+  while ((de= readdir(depot))) {
+    struct partqueue *pq;
+    char *p;
+
+    if (de->d_name[0] == '.') continue;
+    pq = nfmalloc(sizeof(*pq));
+    pq->info.fmtversion.major = 0;
+    pq->info.fmtversion.minor = 0;
+    pq->info.package = NULL;
+    pq->info.version = NULL;
+    pq->info.arch = NULL;
+    pq->info.orglength= pq->info.thispartoffset= pq->info.thispartlen= 0;
+    pq->info.headerlen= 0;
+    p = nfmalloc(strlen(opt_depotdir) + 1 + strlen(de->d_name) + 1);
+    sprintf(p, "%s/%s", opt_depotdir, de->d_name);
+    pq->info.filename= p;
+    if (!decompose_filename(de->d_name,pq)) {
+      pq->info.md5sum= NULL;
+      pq->info.maxpartlen= pq->info.thispartn= pq->info.maxpartn= 0;
+    }
+    pq->nextinqueue= queue;
+    queue= pq;
+  }
+  closedir(depot);
+
+  return queue;
+}
+
+static bool
+partmatches(struct partinfo *pi, struct partinfo *refi)
+{
+  return (pi->md5sum &&
+          strcmp(pi->md5sum, refi->md5sum) == 0 &&
+          pi->maxpartn == refi->maxpartn &&
+          pi->maxpartlen == refi->maxpartlen);
+}
+
+int
+do_auto(const char *const *argv)
+{
+  const char *partfile;
+  struct partinfo *refi, **partlist, *otherthispart;
+  struct partqueue *queue;
+  struct partqueue *pq;
+  struct dpkg_ar *part;
+  int i, j;
+
+  if (!opt_outputfile)
+    badusage(_("--auto requires the use of the --output option"));
+  partfile = *argv++;
+  if (partfile == NULL || *argv)
+    badusage(_("--auto requires exactly one part file argument"));
+
+  refi = nfmalloc(sizeof(*refi));
+  part = dpkg_ar_open(partfile);
+  if (!part)
+    ohshite(_("unable to read part file '%.250s'"), partfile);
+  refi = read_info(part, refi);
+  dpkg_ar_close(part);
+
+  if (refi == NULL) {
+    if (!opt_npquiet)
+      printf(_("File '%.250s' is not part of a multipart archive.\n"), partfile);
+    m_output(stdout, _("<standard output>"));
+    return 1;
+  }
+
+  queue = scandepot();
+  if (queue == NULL)
+    if (dir_make_path(opt_depotdir, 0755) < 0)
+      ohshite(_("cannot create directory %s"), opt_depotdir);
+
+  partlist = nfmalloc(sizeof(*partlist) * refi->maxpartn);
+  for (i = 0; i < refi->maxpartn; i++)
+    partlist[i] = NULL;
+  for (pq= queue; pq; pq= pq->nextinqueue) {
+    struct partinfo *npi, *pi = &pq->info;
+
+    if (!partmatches(pi,refi)) continue;
+    npi = nfmalloc(sizeof(*npi));
+    mustgetpartinfo(pi->filename,npi);
+    addtopartlist(partlist,npi,refi);
+  }
+  /* If we already have a copy of this version we ignore it and prefer the
+   * new one, but we still want to delete the one in the depot, so we
+   * save its partinfo (with the filename) for later. This also prevents
+   * us from accidentally deleting the source file. */
+  otherthispart= partlist[refi->thispartn-1];
+  partlist[refi->thispartn-1]= refi;
+  for (j=refi->maxpartn-1; j>=0 && partlist[j]; j--);
+
+  if (j>=0) {
+    struct dpkg_error err;
+    int fd_src, fd_dst;
+    int ap;
+    char *p, *q;
+
+    p = str_fmt("%s/t.%lx", opt_depotdir, (long)getpid());
+    q = str_fmt("%s/%s.%jx.%x.%x", opt_depotdir, refi->md5sum,
+                (intmax_t)refi->maxpartlen, refi->thispartn, refi->maxpartn);
+
+    fd_src = open(partfile, O_RDONLY);
+    if (fd_src < 0)
+      ohshite(_("unable to reopen part file '%.250s'"), partfile);
+    fd_dst = creat(p, 0644);
+    if (fd_dst < 0)
+      ohshite(_("unable to open new depot file '%.250s'"), p);
+
+    if (fd_fd_copy(fd_src, fd_dst, refi->filesize, &err) < 0)
+      ohshit(_("cannot extract split package part '%s': %s"),
+             partfile, err.str);
+
+    if (fsync(fd_dst))
+      ohshite(_("unable to sync file '%s'"), p);
+    if (close(fd_dst))
+      ohshite(_("unable to close file '%s'"), p);
+    close(fd_src);
+
+    if (rename(p, q))
+      ohshite(_("unable to rename new depot file '%.250s' to '%.250s'"), p, q);
+    free(q);
+    free(p);
+
+    printf(_("Part %d of package %s filed (still want "),refi->thispartn,refi->package);
+    /* There are still some parts missing. */
+    for (i=0, ap=0; i<refi->maxpartn; i++)
+      if (!partlist[i])
+        printf("%s%d", !ap++ ? "" : i == j ? _(" and ") : ", ", i + 1);
+    printf(").\n");
+
+    dir_sync_path(opt_depotdir);
+  } else {
+    /* We have all the parts. */
+    reassemble(partlist, opt_outputfile);
+
+    /* OK, delete all the parts (except the new one, which we never copied). */
+    partlist[refi->thispartn-1]= otherthispart;
+    for (i=0; i<refi->maxpartn; i++)
+      if (partlist[i])
+        if (unlink(partlist[i]->filename))
+          ohshite(_("unable to delete used-up depot file '%.250s'"),
+                  partlist[i]->filename);
+  }
+
+  m_output(stderr, _("<standard error>"));
+
+  return 0;
+}
+
+int
+do_queue(const char *const *argv)
+{
+  struct partqueue *queue;
+  struct partqueue *pq;
+  struct stat stab;
+  off_t bytes;
+  bool part_found;
+
+  if (*argv)
+    badusage(_("--%s takes no arguments"), cipaction->olong);
+
+  queue = scandepot();
+
+  part_found = false;
+  for (pq= queue; pq; pq= pq->nextinqueue) {
+    if (pq->info.md5sum) continue;
+    if (!part_found) {
+      printf(_("Junk files left around in the depot directory:\n"));
+      part_found = true;
+    }
+    if (lstat(pq->info.filename,&stab))
+      ohshit(_("unable to stat '%.250s'"), pq->info.filename);
+    if (S_ISREG(stab.st_mode)) {
+      bytes= stab.st_size;
+      printf(_(" %s (%jd bytes)\n"), pq->info.filename, (intmax_t)bytes);
+    } else {
+      printf(_(" %s (not a plain file)\n"),pq->info.filename);
+    }
+  }
+  if (part_found)
+    putchar('\n');
+
+  part_found = false;
+  for (pq= queue; pq; pq= pq->nextinqueue) {
+    struct partinfo ti;
+    int i;
+
+    if (!pq->info.md5sum) continue;
+    mustgetpartinfo(pq->info.filename,&ti);
+    if (!part_found) {
+      printf(_("Packages not yet reassembled:\n"));
+      part_found = false;
+    }
+
+    printf(_(" Package %s: part(s) "), ti.package);
+    bytes= 0;
+    for (i=0; i<ti.maxpartn; i++) {
+      struct partqueue *qq;
+
+      for (qq= pq;
+           qq && !(partmatches(&qq->info,&ti) && qq->info.thispartn == i+1);
+           qq= qq->nextinqueue);
+      if (qq) {
+        printf("%d ",i+1);
+        if (lstat(qq->info.filename,&stab))
+          ohshite(_("unable to stat '%.250s'"), qq->info.filename);
+        if (!S_ISREG(stab.st_mode))
+          ohshit(_("part file '%.250s' is not a plain file"), qq->info.filename);
+        bytes+= stab.st_size;
+
+        /* Don't find this package again. */
+        qq->info.md5sum = NULL;
+      }
+    }
+    printf(_("(total %jd bytes)\n"), (intmax_t)bytes);
+  }
+  m_output(stdout, _("<standard output>"));
+
+  return 0;
+}
+
+enum discard_which {
+  DISCARD_PART_JUNK,
+  DISCARD_PART_PACKAGE,
+  DISCARD_PART_ALL,
+};
+
+static void
+discard_parts(struct partqueue *queue, enum discard_which which,
+              const char *package)
+{
+  struct partqueue *pq;
+
+  for (pq= queue; pq; pq= pq->nextinqueue) {
+    switch (which) {
+    case DISCARD_PART_JUNK:
+      if (pq->info.md5sum) continue;
+      break;
+    case DISCARD_PART_PACKAGE:
+      if (!pq->info.md5sum || strcasecmp(pq->info.package,package)) continue;
+      break;
+    case DISCARD_PART_ALL:
+      break;
+    default:
+      internerr("unknown discard_which '%d'", which);
+    }
+    if (unlink(pq->info.filename))
+      ohshite(_("unable to discard '%.250s'"), pq->info.filename);
+    printf(_("Deleted %s.\n"),pq->info.filename);
+  }
+}
+
+int
+do_discard(const char *const *argv)
+{
+  struct partqueue *queue;
+
+  queue = scandepot();
+  if (*argv) {
+    const char *thisarg;
+    struct partqueue *pq;
+
+    for (pq= queue; pq; pq= pq->nextinqueue)
+      if (pq->info.md5sum)
+        mustgetpartinfo(pq->info.filename,&pq->info);
+    discard_parts(queue, DISCARD_PART_JUNK, NULL);
+    while ((thisarg = *argv++))
+      discard_parts(queue, DISCARD_PART_PACKAGE, thisarg);
+  } else {
+    discard_parts(queue, DISCARD_PART_ALL, NULL);
+  }
+
+  return 0;
+}
diff --git a/src/split/split.c b/src/split/split.c
new file mode 100644
index 0000000..771de62
--- /dev/null
+++ b/src/split/split.c
@@ -0,0 +1,287 @@
+/*
+ * dpkg-split - splitting and joining of multipart *.deb archives
+ * split.c - splitting archives
+ *
+ * Copyright © 1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2008-2015 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+
+#include <errno.h>
+#include <limits.h>
+#include <inttypes.h>
+#include <fcntl.h>
+#include <libgen.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/c-ctype.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/parsedump.h>
+#include <dpkg/path.h>
+#include <dpkg/string.h>
+#include <dpkg/subproc.h>
+#include <dpkg/buffer.h>
+#include <dpkg/ar.h>
+#include <dpkg/options.h>
+
+#include "dpkg-split.h"
+
+/**
+ * Parse the control file from a .deb package into a struct pkginfo.
+ */
+static struct pkginfo *
+deb_parse_control(const char *filename)
+{
+	struct parsedb_state *ps;
+	struct pkginfo *pkg;
+	pid_t pid;
+	int p[2];
+
+	m_pipe(p);
+
+	pid = subproc_fork();
+	if (pid == 0) {
+		/* Child writes to pipe. */
+		m_dup2(p[1], 1);
+		close(p[0]);
+		close(p[1]);
+
+		execlp(BACKEND, BACKEND, "--info", filename, "control", NULL);
+		ohshite(_("unable to execute %s (%s)"),
+		        _("package field value extraction"), BACKEND);
+	}
+	close(p[1]);
+
+	/* Parent reads from pipe. */
+	ps = parsedb_new(_("<dpkg-deb --info pipe>"), p[0], pdb_parse_binary);
+	parsedb_load(ps);
+	parsedb_parse(ps, &pkg);
+	parsedb_close(ps);
+
+	close(p[0]);
+
+	subproc_reap(pid, _("package field value extraction"), SUBPROC_NOPIPE);
+
+	return pkg;
+}
+
+static intmax_t
+parse_timestamp(const char *value)
+{
+	intmax_t timestamp;
+	char *end;
+
+	errno = 0;
+	timestamp = strtoimax(value, &end, 10);
+	if (value == end || *end || errno != 0)
+		ohshite(_("unable to parse timestamp '%.255s'"), value);
+
+	return timestamp;
+}
+
+/* Cleanup filename for use in crippled msdos systems. */
+static char *
+clean_msdos_filename(char *filename)
+{
+	char *d, *s;
+
+	for (s = d = filename; *s; d++, s++) {
+		if (*s == '+')
+			*d = 'x';
+		else if (c_isupper(*s))
+			*d = c_tolower(*s);
+		else if (c_islower(*s) || c_isdigit(*s))
+			*d = *s;
+		else
+			s++;
+	}
+
+	return filename;
+}
+
+static int
+mksplit(const char *file_src, const char *prefix, off_t maxpartsize,
+        bool msdos)
+{
+	struct pkginfo *pkg;
+	struct dpkg_error err;
+	int fd_src;
+	struct stat st;
+	intmax_t timestamp;
+	const char *timestamp_str;
+	const char *version;
+	char hash[MD5HASHLEN + 1];
+	int nparts, curpart;
+	off_t partsize;
+	off_t cur_partsize, last_partsize;
+	char *prefixdir = NULL, *msdos_prefix = NULL;
+	struct varbuf file_dst = VARBUF_INIT;
+	struct varbuf partmagic = VARBUF_INIT;
+	struct varbuf partname = VARBUF_INIT;
+
+	fd_src = open(file_src, O_RDONLY);
+	if (fd_src < 0)
+		ohshite(_("unable to open source file '%.250s'"), file_src);
+	if (fstat(fd_src, &st))
+		ohshite(_("unable to fstat source file"));
+	if (!S_ISREG(st.st_mode))
+		ohshit(_("source file '%.250s' not a plain file"), file_src);
+
+	if (fd_md5(fd_src, hash, -1, &err) < 0)
+		ohshit(_("cannot compute MD5 digest for file '%s': %s"),
+		       file_src, err.str);
+	lseek(fd_src, 0, SEEK_SET);
+
+	pkg  = deb_parse_control(file_src);
+	version = versiondescribe(&pkg->available.version, vdew_nonambig);
+
+	timestamp_str = getenv("SOURCE_DATE_EPOCH");
+	if (timestamp_str)
+		timestamp = parse_timestamp(timestamp_str);
+	else
+		timestamp = time(NULL);
+
+	partsize = maxpartsize - HEADERALLOWANCE;
+	last_partsize = st.st_size % partsize;
+	if (last_partsize == 0)
+		last_partsize = partsize;
+	nparts = (st.st_size + partsize - 1) / partsize;
+
+	printf(P_("Splitting package %s into %d part: ",
+	          "Splitting package %s into %d parts: ", nparts),
+	       pkg->set->name, nparts);
+
+	if (msdos) {
+		char *t;
+
+		t = m_strdup(prefix);
+		prefixdir = m_strdup(dirname(t));
+		free(t);
+
+		msdos_prefix = m_strdup(path_basename(prefix));
+		prefix = clean_msdos_filename(msdos_prefix);
+	}
+
+	for (curpart = 1; curpart <= nparts; curpart++) {
+		struct dpkg_ar *ar;
+
+		varbuf_reset(&file_dst);
+		/* Generate output filename. */
+		if (msdos) {
+			char *refname;
+			int prefix_max;
+
+			refname = str_fmt("%dof%d", curpart, nparts);
+			prefix_max = max(8 - strlen(refname), 0);
+			varbuf_printf(&file_dst, "%s/%.*s%.8s" DEBEXT,
+			              prefixdir, prefix_max, prefix, refname);
+			free(refname);
+		} else {
+			varbuf_printf(&file_dst, "%s.%dof%d" DEBEXT,
+			              prefix, curpart, nparts);
+		}
+
+		if (curpart == nparts)
+			cur_partsize = last_partsize;
+		else
+			cur_partsize = partsize;
+
+		if (cur_partsize > maxpartsize) {
+			ohshit(_("header is too long, making part too long; "
+			         "the package name or version\n"
+			         "numbers must be extraordinarily long, "
+			         "or something; giving up"));
+		}
+
+		/* Split the data. */
+		ar = dpkg_ar_create(file_dst.buf, 0644);
+		dpkg_ar_set_mtime(ar, timestamp);
+
+		/* Write the ar header. */
+		dpkg_ar_put_magic(ar);
+
+		/* Write the debian-split part. */
+		varbuf_printf(&partmagic,
+		              "%s\n%s\n%s\n%s\n%jd\n%jd\n%d/%d\n%s\n",
+		              SPLITVERSION, pkg->set->name, version, hash,
+		              (intmax_t)st.st_size, (intmax_t)partsize,
+		              curpart, nparts, pkg->available.arch->name);
+		dpkg_ar_member_put_mem(ar, PARTMAGIC,
+		                       partmagic.buf, partmagic.used);
+		varbuf_reset(&partmagic);
+
+		/* Write the data part. */
+		varbuf_printf(&partname, "data.%d", curpart);
+		dpkg_ar_member_put_file(ar, partname.buf,
+		                        fd_src, cur_partsize);
+		varbuf_reset(&partname);
+
+		dpkg_ar_close(ar);
+
+		printf("%d ", curpart);
+	}
+
+	varbuf_destroy(&file_dst);
+	varbuf_destroy(&partname);
+	varbuf_destroy(&partmagic);
+
+	free(prefixdir);
+	free(msdos_prefix);
+
+	close(fd_src);
+
+	printf(_("done\n"));
+
+	return 0;
+}
+
+int
+do_split(const char *const *argv)
+{
+	const char *sourcefile, *prefix;
+
+	sourcefile = *argv++;
+	if (!sourcefile)
+		badusage(_("--split needs a source filename argument"));
+	prefix = *argv++;
+	if (prefix && *argv)
+		badusage(_("--split takes at most a source filename and destination prefix"));
+	if (!prefix) {
+		size_t sourcefile_len = strlen(sourcefile);
+
+		if (str_match_end(sourcefile, DEBEXT))
+			sourcefile_len -= strlen(DEBEXT);
+
+		prefix = nfstrnsave(sourcefile, sourcefile_len);
+	}
+
+	mksplit(sourcefile, prefix, opt_maxpartsize, opt_msdos);
+
+	return 0;
+}
diff --git a/src/statoverride/main.c b/src/statoverride/main.c
new file mode 100644
index 0000000..07c8757
--- /dev/null
+++ b/src/statoverride/main.c
@@ -0,0 +1,421 @@
+/*
+ * dpkg-statoverride - override ownership and mode of files
+ *
+ * Copyright © 2000, 2001 Wichert Akkerman <wakkerma@debian.org>
+ * Copyright © 2006-2015 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <errno.h>
+#if HAVE_LOCALE_H
+#include <locale.h>
+#endif
+#include <string.h>
+#include <grp.h>
+#include <pwd.h>
+#include <fnmatch.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/debug.h>
+#include <dpkg/string.h>
+#include <dpkg/path.h>
+#include <dpkg/dir.h>
+#include <dpkg/glob.h>
+#include <dpkg/db-fsys.h>
+#include <dpkg/options.h>
+
+#include "force.h"
+#include "actions.h"
+#include "security-mac.h"
+
+static const char printforhelp[] = N_(
+"Use --help for help about overriding file stat information.");
+
+static int
+printversion(const char *const *argv)
+{
+	printf(_("Debian %s version %s.\n"), dpkg_get_progname(),
+	       PACKAGE_RELEASE);
+
+	printf(_(
+"This is free software; see the GNU General Public License version 2 or\n"
+"later for copying conditions. There is NO warranty.\n"));
+
+	m_output(stdout, _("<standard output>"));
+
+	return 0;
+}
+
+static int
+usage(const char *const *argv)
+{
+	printf(_(
+"Usage: %s [<option> ...] <command>\n"
+"\n"), dpkg_get_progname());
+
+	printf(_(
+"Commands:\n"
+"  --add <owner> <group> <mode> <path>\n"
+"                           add a new <path> entry into the database.\n"
+"  --remove <path>          remove <path> from the database.\n"
+"  --list [<glob-pattern>]  list current overrides in the database.\n"
+"\n"));
+
+	printf(_(
+"Options:\n"
+"  --admindir <directory>   set the directory with the statoverride file.\n"
+"  --instdir <directory>    set the root directory, but not the admin dir.\n"
+"  --root <directory>       set the directory of the root filesystem.\n"
+"  --update                 immediately update <path> permissions.\n"
+"  --force                  deprecated alias for --force-all.\n"
+"  --force-<thing>[,...]    override problems (see --force-help).\n"
+"  --no-force-<thing>[,...] stop when problems encountered.\n"
+"  --refuse-<thing>[,...]   ditto.\n"
+"  --quiet                  quiet operation, minimal output.\n"
+"  --help                   show this help message.\n"
+"  --version                show the version.\n"
+"\n"));
+
+	m_output(stdout, _("<standard output>"));
+
+	return 0;
+}
+
+#define FORCE_STATCMD_MASK \
+	FORCE_NON_ROOT | \
+	FORCE_SECURITY_MAC | FORCE_STATOVERRIDE_ADD | FORCE_STATOVERRIDE_DEL
+
+static int opt_verbose = 1;
+static int opt_update = 0;
+
+static char *
+path_cleanup(const char *path)
+{
+	char *new_path = m_strdup(path);
+
+	path_trim_slash_slashdot(new_path);
+	if (opt_verbose && strcmp(path, new_path) != 0)
+		warning(_("stripping trailing /"));
+
+	return new_path;
+}
+
+static struct file_stat *
+statdb_node_new(const char *user, const char *group, const char *mode)
+{
+	struct file_stat *filestat;
+
+	filestat = nfmalloc(sizeof(*filestat));
+
+	filestat->uid = statdb_parse_uid(user);
+	if (filestat->uid == (uid_t)-1)
+		ohshit(_("user '%s' does not exist"), user);
+	filestat->uname = NULL;
+	filestat->gid = statdb_parse_gid(group);
+	if (filestat->gid == (gid_t)-1)
+		ohshit(_("group '%s' does not exist"), group);
+	filestat->gname = NULL;
+	filestat->mode = statdb_parse_mode(mode);
+
+	return filestat;
+}
+
+static struct file_stat **
+statdb_node_find(const char *filename)
+{
+	struct fsys_namenode *file;
+
+	file = fsys_hash_find_node(filename, FHFF_NONE);
+
+	return &file->statoverride;
+}
+
+static int
+statdb_node_remove(const char *filename)
+{
+	struct fsys_namenode *file;
+
+	file = fsys_hash_find_node(filename, FHFF_NO_NEW);
+	if (!file || !file->statoverride)
+		return 0;
+
+	file->statoverride = NULL;
+
+	return 1;
+}
+
+static void
+statdb_node_apply(const char *filename, struct file_stat *filestat)
+{
+	int rc;
+
+	rc = chown(filename, filestat->uid, filestat->gid);
+	if (forcible_nonroot_error(rc) < 0)
+		ohshite(_("error setting ownership of '%.255s'"), filename);
+	rc = chmod(filename, filestat->mode & ~S_IFMT);
+	if (forcible_nonroot_error(rc) < 0)
+		ohshite(_("error setting permissions of '%.255s'"), filename);
+
+	dpkg_selabel_load();
+	dpkg_selabel_set_context(filename, filename, filestat->mode);
+	dpkg_selabel_close();
+}
+
+static void
+statdb_node_print(FILE *out, struct fsys_namenode *file)
+{
+	struct file_stat *filestat = file->statoverride;
+	struct passwd *pw;
+	struct group *gr;
+
+	if (!filestat)
+		return;
+
+	pw = getpwuid(filestat->uid);
+	if (pw)
+		fprintf(out, "%s ", pw->pw_name);
+	else if (filestat->uname)
+		fprintf(out, "%s ", filestat->uname);
+	else
+		fprintf(out, "#%d ", filestat->uid);
+
+	gr = getgrgid(filestat->gid);
+	if (gr)
+		fprintf(out, "%s ", gr->gr_name);
+	else if (filestat->gname)
+		fprintf(out, "%s ", filestat->gname);
+	else
+		fprintf(out, "#%d ", filestat->gid);
+
+	fprintf(out, "%o %s\n", filestat->mode & ~S_IFMT, file->name);
+}
+
+static void
+statdb_write(void)
+{
+	char *dbname;
+	struct atomic_file *dbfile;
+	struct fsys_hash_iter *iter;
+	struct fsys_namenode *file;
+
+	dbname = dpkg_db_get_path(STATOVERRIDEFILE);
+	dbfile = atomic_file_new(dbname, ATOMIC_FILE_BACKUP);
+	atomic_file_open(dbfile);
+
+	iter = fsys_hash_iter_new();
+	while ((file = fsys_hash_iter_next(iter)))
+		statdb_node_print(dbfile->fp, file);
+	fsys_hash_iter_free(iter);
+
+	atomic_file_sync(dbfile);
+	atomic_file_close(dbfile);
+	atomic_file_commit(dbfile);
+	atomic_file_free(dbfile);
+
+	dir_sync_path(dpkg_db_get_dir());
+
+	free(dbname);
+}
+
+static int
+statoverride_add(const char *const *argv)
+{
+	const char *user = argv[0];
+	const char *group = argv[1];
+	const char *mode = argv[2];
+	const char *path = argv[3];
+	char *filename;
+	struct file_stat **filestat;
+
+	if (!user || !group || !mode || !path || argv[4])
+		badusage(_("--%s needs four arguments"), cipaction->olong);
+
+	if (strchr(path, '\n'))
+		badusage(_("path may not contain newlines"));
+
+	ensure_statoverrides(STATDB_PARSE_LAX);
+
+	filename = path_cleanup(path);
+
+	filestat = statdb_node_find(filename);
+	if (*filestat != NULL) {
+		if (in_force(FORCE_STATOVERRIDE_ADD))
+			warning(_("an override for '%s' already exists, "
+			          "but --force specified so will be ignored"),
+			        filename);
+		else
+			ohshit(_("an override for '%s' already exists; "
+			         "aborting"), filename);
+	}
+
+	*filestat = statdb_node_new(user, group, mode);
+
+	if (opt_update) {
+		struct stat st;
+		struct varbuf realfilename = VARBUF_INIT;
+
+		varbuf_add_str(&realfilename, dpkg_fsys_get_dir());
+		varbuf_add_str(&realfilename, filename);
+		varbuf_end_str(&realfilename);
+
+		if (stat(realfilename.buf, &st) == 0) {
+			(*filestat)->mode |= st.st_mode & S_IFMT;
+			statdb_node_apply(realfilename.buf, *filestat);
+		} else if (opt_verbose) {
+			warning(_("--update given but %s does not exist"),
+			        realfilename.buf);
+		}
+
+		varbuf_destroy(&realfilename);
+	}
+
+	statdb_write();
+
+	free(filename);
+
+	return 0;
+}
+
+static int
+statoverride_remove(const char *const *argv)
+{
+	const char *path = argv[0];
+	char *filename;
+
+	if (!path || argv[1])
+		badusage(_("--%s needs a single argument"), "remove");
+
+	ensure_statoverrides(STATDB_PARSE_LAX);
+
+	filename = path_cleanup(path);
+
+	if (!statdb_node_remove(filename)) {
+		if (opt_verbose)
+			warning(_("no override present"));
+		if (in_force(FORCE_STATOVERRIDE_DEL))
+			return 0;
+		else
+			return 2;
+	}
+
+	if (opt_update && opt_verbose)
+		warning(_("--update is useless for --remove"));
+
+	statdb_write();
+
+	free(filename);
+
+	return 0;
+}
+
+static int
+statoverride_list(const char *const *argv)
+{
+	struct fsys_hash_iter *iter;
+	struct fsys_namenode *file;
+	const char *thisarg;
+	struct glob_node *glob_list = NULL;
+	int ret = 1;
+
+	ensure_statoverrides(STATDB_PARSE_LAX);
+
+	while ((thisarg = *argv++)) {
+		char *pattern = path_cleanup(thisarg);
+
+		glob_list_prepend(&glob_list, pattern);
+	}
+	if (glob_list == NULL)
+		glob_list_prepend(&glob_list, m_strdup("*"));
+
+	iter = fsys_hash_iter_new();
+	while ((file = fsys_hash_iter_next(iter))) {
+		struct glob_node *g;
+
+		for (g = glob_list; g; g = g->next) {
+			if (fnmatch(g->pattern, file->name, 0) == 0) {
+				statdb_node_print(stdout, file);
+				ret = 0;
+				break;
+			}
+		}
+	}
+	fsys_hash_iter_free(iter);
+
+	glob_list_free(glob_list);
+
+	return ret;
+}
+
+static void
+set_force_obsolete(const struct cmdinfo *cip, const char *value)
+{
+	warning(_("deprecated --%s option; use --%s instead"),
+	        cip->olong, "force-all");
+	set_force(FORCE_ALL);
+}
+
+static const struct cmdinfo cmdinfos[] = {
+	ACTION("add",    0, act_install,   statoverride_add),
+	ACTION("remove", 0, act_remove,    statoverride_remove),
+	ACTION("list",   0, act_listfiles, statoverride_list),
+	ACTION("help",   '?', act_help,    usage),
+	ACTION("version", 0,  act_version, printversion),
+
+	{ "admindir",   0,   1,  NULL,         NULL,      set_admindir, 0 },
+	{ "instdir",    0,   1,  NULL,         NULL,      set_instdir,  0 },
+	{ "root",       0,   1,  NULL,         NULL,      set_root,     0 },
+	{ "quiet",      0,   0,  &opt_verbose, NULL,      NULL, 0       },
+	{ "force",      0,   0,  NULL,         NULL,      set_force_obsolete },
+	{ "force",      0,   2,  NULL,         NULL,      set_force_option, 1 },
+	{ "no-force",   0,   2,  NULL,         NULL,      set_force_option, 0 },
+	{ "refuse",     0,   2,  NULL,         NULL,      set_force_option, 0 },
+	{ "update",     0,   0,  &opt_update,  NULL,      NULL, 1       },
+	{  NULL,        0                                               }
+};
+
+int
+main(int argc, const char *const *argv)
+{
+	int ret;
+
+	dpkg_locales_init(PACKAGE);
+	dpkg_program_init("dpkg-statoverride");
+	set_force_default(FORCE_STATCMD_MASK);
+	dpkg_options_parse(&argv, cmdinfos, printforhelp);
+
+	debug(dbg_general, "root=%s admindir=%s", dpkg_fsys_get_dir(), dpkg_db_get_dir());
+
+	if (!cipaction)
+		badusage(_("need an action option"));
+
+	ret = cipaction->action(argv);
+
+	dpkg_program_done();
+	dpkg_locales_done();
+
+	return ret;
+}
diff --git a/src/trigger/main.c b/src/trigger/main.c
new file mode 100644
index 0000000..2bba56d
--- /dev/null
+++ b/src/trigger/main.c
@@ -0,0 +1,271 @@
+/*
+ * dpkg-trigger - trigger management utility
+ *
+ * Copyright © 2007 Canonical Ltd.
+ * Written by Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2008-2014 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/types.h>
+
+#include <fcntl.h>
+#if HAVE_LOCALE_H
+#include <locale.h>
+#endif
+#include <string.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/debug.h>
+#include <dpkg/options.h>
+#include <dpkg/trigdeferred.h>
+#include <dpkg/triglib.h>
+#include <dpkg/pkg-spec.h>
+
+static const char printforhelp[] = N_(
+"Type dpkg-trigger --help for help about this utility.");
+
+static int
+printversion(const char *const *argv)
+{
+	printf(_("Debian %s package trigger utility version %s.\n"),
+	       dpkg_get_progname(), PACKAGE_RELEASE);
+
+	printf(_(
+"This is free software; see the GNU General Public License version 2 or\n"
+"later for copying conditions. There is NO warranty.\n"));
+
+	m_output(stdout, _("<standard output>"));
+
+	return 0;
+}
+
+static int
+usage(const char *const *argv)
+{
+	printf(_(
+"Usage: %s [<option>...] <trigger-name>\n"
+"       %s [<option>...] <command>\n"
+"\n"), dpkg_get_progname(), dpkg_get_progname());
+
+	printf(_(
+"Commands:\n"
+"  --check-supported                Check if the running dpkg supports triggers.\n"
+"\n"));
+
+	printf(_(
+"  -?, --help                       Show this help message.\n"
+"      --version                    Show the version.\n"
+"\n"));
+
+	printf(_(
+"Options:\n"
+"  --admindir=<directory>           Use <directory> instead of %s.\n"
+"  --root=<directory>               Use <directory> instead of %s.\n"
+"  --by-package=<package>           Override trigger awaiter (normally set\n"
+"                                     by dpkg).\n"
+"  --await                          Package needs to await the processing.\n"
+"  --no-await                       No package needs to await the processing.\n"
+"  --no-act                         Just test - don't actually change anything.\n"
+"\n"), ADMINDIR, "/");
+
+	m_output(stdout, _("<standard output>"));
+
+	return 0;
+}
+
+static int opt_noact;
+static int opt_await = 1;
+static const char *opt_bypackage;
+
+static const char *activate;
+static bool done_trig, ctrig;
+
+static void
+yespackage(const char *awname)
+{
+	trigdef_update_printf(" %s", awname);
+}
+
+static const char *
+parse_awaiter_package(void)
+{
+	struct dpkg_error err = DPKG_ERROR_INIT;
+	struct pkginfo *pkg;
+
+	if (!opt_await)
+		opt_bypackage = "-";
+
+	if (opt_bypackage == NULL) {
+		const char *pkgname, *archname;
+
+		pkgname = getenv("DPKG_MAINTSCRIPT_PACKAGE");
+		archname = getenv("DPKG_MAINTSCRIPT_ARCH");
+		if (pkgname == NULL || archname == NULL)
+			badusage(_("must be called from a maintainer script"
+			           " (or with a --by-package option)"));
+
+		pkg = pkg_spec_find_pkg(pkgname, archname, &err);
+	} else if (strcmp(opt_bypackage, "-") == 0) {
+		pkg = NULL;
+	} else {
+		pkg = pkg_spec_parse_pkg(opt_bypackage, &err);
+	}
+
+	/* Normalize the bypackage name if there was no error. */
+	if (pkg)
+		opt_bypackage = pkg_name(pkg, pnaw_same);
+
+	return err.str;
+}
+
+static void
+tdm_add_trig_begin(const char *trig)
+{
+	ctrig = strcmp(trig, activate) == 0;
+	trigdef_update_printf("%s", trig);
+	if (!ctrig || done_trig)
+		return;
+	yespackage(opt_bypackage);
+	done_trig = true;
+}
+
+static void
+tdm_add_package(const char *awname)
+{
+	if (ctrig && strcmp(awname, opt_bypackage) == 0)
+		return;
+	yespackage(awname);
+}
+
+static void
+tdm_add_trig_end(void)
+{
+	trigdef_update_printf("\n");
+}
+
+static const struct trigdefmeths tdm_add = {
+	.trig_begin = tdm_add_trig_begin,
+	.package = tdm_add_package,
+	.trig_end = tdm_add_trig_end,
+};
+
+static int
+do_trigger(const char *const *argv)
+{
+	const char *badname;
+	enum trigdef_update_flags tduf;
+	enum trigdef_update_status tdus;
+
+	if (!*argv || argv[1])
+		badusage(_("takes one argument, the trigger name"));
+
+	badname = parse_awaiter_package();
+	if (badname)
+		badusage(_("illegal awaited package name '%.250s': %.250s"),
+		         opt_bypackage, badname);
+
+	activate = argv[0];
+	badname = trig_name_is_illegal(activate);
+	if (badname)
+		badusage(_("invalid trigger name '%.250s': %.250s"),
+		         activate, badname);
+
+	trigdef_set_methods(&tdm_add);
+
+	tduf = TDUF_NO_LOCK_OK;
+	if (!opt_noact)
+		tduf |= TDUF_WRITE | TDUF_WRITE_IF_EMPTY;
+	tdus = trigdef_update_start(tduf);
+	if (tdus >= 0) {
+		trigdef_parse();
+		if (!done_trig)
+			trigdef_update_printf("%s %s\n", activate, opt_bypackage);
+		trigdef_process_done();
+	}
+
+	return 0;
+}
+
+static int
+do_check(const char *const *argv)
+{
+	enum trigdef_update_status uf;
+
+	if (*argv)
+		badusage(_("--%s takes no arguments"), "check-supported");
+
+	uf = trigdef_update_start(TDUF_NO_LOCK_OK);
+	switch (uf) {
+	case TDUS_ERROR_NO_DIR:
+		notice(_("triggers data directory not yet created"));
+		return 1;
+	case TDUS_ERROR_NO_DEFERRED:
+		notice(_("trigger records not yet in existence"));
+		return 1;
+	case TDUS_OK:
+	case TDUS_ERROR_EMPTY_DEFERRED:
+		return 0;
+	default:
+		internerr("unknown trigdef_update_start return value '%d'", uf);
+	}
+}
+
+static const struct cmdinfo cmdinfo_trigger =
+	ACTION("trigger",          0,  0, do_trigger);
+
+static const struct cmdinfo cmdinfos[] = {
+	ACTION("check-supported",  0,  0, do_check),
+	ACTION("help",            '?', 0, usage),
+	ACTION("version",          0,  0, printversion),
+
+	{ "admindir",        0,   1, NULL,       NULL,       set_admindir, 0 },
+	{ "root",            0,   1, NULL,       NULL,       set_root, 0 },
+	{ "by-package",      'f', 1, NULL,       &opt_bypackage },
+	{ "await",           0,   0, &opt_await, NULL,       NULL, 1 },
+	{ "no-await",        0,   0, &opt_await, NULL,       NULL, 0 },
+	{ "no-act",          0,   0, &opt_noact, NULL,       NULL, 1 },
+	{  NULL  }
+};
+
+int
+main(int argc, const char *const *argv)
+{
+	int ret;
+
+	dpkg_locales_init(PACKAGE);
+	dpkg_program_init("dpkg-trigger");
+	dpkg_options_parse(&argv, cmdinfos, printforhelp);
+
+	debug(dbg_general, "root=%s admindir=%s", dpkg_fsys_get_dir(), dpkg_db_get_dir());
+
+	if (!cipaction)
+		setaction(&cmdinfo_trigger, NULL);
+
+	ret = cipaction->action(argv);
+
+	dpkg_program_done();
+	dpkg_locales_done();
+
+	return ret;
+}