Adding upstream version 1.5.2.upstream/1.5.2upstream

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

13 files changed, 3099 insertions, 0 deletions

diff --git a/modules/pam_env/Makefile.am b/modules/pam_env/Makefile.am
new file mode 100644
index 0000000..c66112d
--- /dev/null
+++ b/modules/pam_env/Makefile.am
@@ -0,0 +1,37 @@
+#
+# Copyright (c) 2005, 2009 Thorsten Kukuk <kukuk@suse.de>
+#
+
+CLEANFILES = *~
+MAINTAINERCLEANFILES = $(MANS) README
+
+EXTRA_DIST = $(XMLS)
+
+if HAVE_DOC
+dist_man_MANS = pam_env.conf.5 pam_env.8 environment.5
+endif
+XMLS = README.xml pam_env.conf.5.xml pam_env.8.xml
+dist_check_SCRIPTS = tst-pam_env
+TESTS = $(dist_check_SCRIPTS)
+
+securelibdir = $(SECUREDIR)
+secureconfdir = $(SCONFIGDIR)
+
+AM_CFLAGS = -I$(top_srcdir)/libpam/include -I$(top_srcdir)/libpamc/include \
+	-DDEFAULT_CONF_FILE=\"$(SCONFIGDIR)/pam_env.conf\" $(WARN_CFLAGS)
+AM_LDFLAGS = -no-undefined -avoid-version -module
+if HAVE_VERSIONING
+  AM_LDFLAGS += -Wl,--version-script=$(srcdir)/../modules.map
+endif
+
+securelib_LTLIBRARIES = pam_env.la
+pam_env_la_LIBADD = $(top_builddir)/libpam/libpam.la
+
+dist_secureconf_DATA = pam_env.conf
+dist_sysconf_DATA = environment
+
+if ENABLE_REGENERATE_MAN
+dist_noinst_DATA = README
+environment.5: pam_env.conf.5.xml
+-include $(top_srcdir)/Make.xml.rules
+endif
diff --git a/modules/pam_env/Makefile.in b/modules/pam_env/Makefile.in
new file mode 100644
index 0000000..255458f
--- /dev/null
+++ b/modules/pam_env/Makefile.in
@@ -0,0 +1,1248 @@
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+LIBPRELUDE_CONFIG_PREFIX = @LIBPRELUDE_CONFIG_PREFIX@
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+LIBPRELUDE_LIBS = @LIBPRELUDE_LIBS@
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+STRINGPARAM_VENDORDIR = @STRINGPARAM_VENDORDIR@
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+CLEANFILES = *~
+MAINTAINERCLEANFILES = $(MANS) README
+EXTRA_DIST = $(XMLS)
+@HAVE_DOC_TRUE@dist_man_MANS = pam_env.conf.5 pam_env.8 environment.5
+XMLS = README.xml pam_env.conf.5.xml pam_env.8.xml
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+secureconfdir = $(SCONFIGDIR)
+AM_CFLAGS = -I$(top_srcdir)/libpam/include -I$(top_srcdir)/libpamc/include \
+	-DDEFAULT_CONF_FILE=\"$(SCONFIGDIR)/pam_env.conf\" $(WARN_CFLAGS)
+
+AM_LDFLAGS = -no-undefined -avoid-version -module $(am__append_1)
+securelib_LTLIBRARIES = pam_env.la
+pam_env_la_LIBADD = $(top_builddir)/libpam/libpam.la
+dist_secureconf_DATA = pam_env.conf
+dist_sysconf_DATA = environment
+@ENABLE_REGENERATE_MAN_TRUE@dist_noinst_DATA = README
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+
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+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --gnu modules/pam_env/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --gnu modules/pam_env/Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles);; \
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+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
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+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
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+
+install-securelibLTLIBRARIES: $(securelib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(securelib_LTLIBRARIES)'; test -n "$(securelibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(securelibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(securelibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(securelibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(securelibdir)"; \
+	}
+
+uninstall-securelibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(securelib_LTLIBRARIES)'; test -n "$(securelibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(securelibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(securelibdir)/$$f"; \
+	done
+
+clean-securelibLTLIBRARIES:
+	-test -z "$(securelib_LTLIBRARIES)" || rm -f $(securelib_LTLIBRARIES)
+	@list='$(securelib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+pam_env.la: $(pam_env_la_OBJECTS) $(pam_env_la_DEPENDENCIES) $(EXTRA_pam_env_la_DEPENDENCIES) 
+	$(AM_V_CCLD)$(LINK) -rpath $(securelibdir) $(pam_env_la_OBJECTS) $(pam_env_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
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+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/pam_env.Plo@am__quote@ # am--include-marker
+
+$(am__depfiles_remade):
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+	@echo '# dummy' >$@-t && $(am__mv) $@-t $@
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+	sed -e 'n;s,.*/,,;p;h;s,.*\.,,;s,^[^5][0-9a-z]*$$,5,;x' \
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+	sed 'N;N;s,\n, ,g' | { \
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+	  if test "$$base" = "$$inst"; then list="$$list $$file"; else \
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+
+uninstall-man5:
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+	files=`{ for i in $$list; do echo "$$i"; done; \
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+	} | sed -e 's,.*/,,;h;s,.*\.,,;s,^[^5][0-9a-z]*$$,5,;x' \
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+	  || exit 0; \
+	echo " $(MKDIR_P) '$(DESTDIR)$(man8dir)'"; \
+	$(MKDIR_P) "$(DESTDIR)$(man8dir)" || exit 1; \
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+	if test -n "$$list2"; then \
+	  for i in $$list2; do echo "$$i"; done \
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+	fi; \
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+	  if test -f $$p; then d=; else d="$(srcdir)/"; fi; \
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+	sed -e 'n;s,.*/,,;p;h;s,.*\.,,;s,^[^8][0-9a-z]*$$,8,;x' \
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+	sed 'N;N;s,\n, ,g' | { \
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+	  if test "$$base" = "$$inst"; then list="$$list $$file"; else \
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+	for i in $$list; do echo "$$i"; done | $(am__base_list) | \
+	while read files; do \
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+	    echo " $(INSTALL_DATA) $$files '$(DESTDIR)$(man8dir)'"; \
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+
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+	@list=''; test -n "$(man8dir)" || exit 0; \
+	files=`{ for i in $$list; do echo "$$i"; done; \
+	l2='$(dist_man_MANS)'; for i in $$l2; do echo "$$i"; done | \
+	  sed -n '/\.8[a-z]*$$/p'; \
+	} | sed -e 's,.*/,,;h;s,.*\.,,;s,^[^8][0-9a-z]*$$,8,;x' \
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+	if test -n "$$list"; then \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(secureconfdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(secureconfdir)" || exit 1; \
+	fi; \
+	for p in $$list; do \
+	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
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+	done | $(am__base_list) | \
+	while read files; do \
+	  echo " $(INSTALL_DATA) $$files '$(DESTDIR)$(secureconfdir)'"; \
+	  $(INSTALL_DATA) $$files "$(DESTDIR)$(secureconfdir)" || exit $$?; \
+	done
+
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+	if test -n "$$list"; then \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(sysconfdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(sysconfdir)" || exit 1; \
+	fi; \
+	for p in $$list; do \
+	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
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+	done | $(am__base_list) | \
+	while read files; do \
+	  echo " $(INSTALL_DATA) $$files '$(DESTDIR)$(sysconfdir)'"; \
+	  $(INSTALL_DATA) $$files "$(DESTDIR)$(sysconfdir)" || exit $$?; \
+	done
+
+uninstall-dist_sysconfDATA:
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+	@list='$(dist_sysconf_DATA)'; test -n "$(sysconfdir)" || list=; \
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+	result_count () \
+	{ \
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+	      echo "$@: invalid 'result_count' usage" >&2; exit 4; \
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+	    shift; \
+	    desc=$$1 count=$$2; \
+	    if test $$maybe_colorize = yes && test $$count -gt 0; then \
+	      color_start=$$3 color_end=$$std; \
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+	      color_start= color_end=; \
+	    fi; \
+	    echo "$${color_start}# $$desc $$count$${color_end}"; \
+	}; \
+	create_testsuite_report () \
+	{ \
+	  result_count $$1 "TOTAL:" $$all   "$$brg"; \
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+	  result_count $$1 "XPASS:" $$xpass "$$red"; \
+	  result_count $$1 "ERROR:" $$error "$$mgn"; \
+	}; \
+	{								\
+	  echo "$(PACKAGE_STRING): $(subdir)/$(TEST_SUITE_LOG)" |	\
+	    $(am__rst_title);						\
+	  create_testsuite_report --no-color;				\
+	  echo;								\
+	  echo ".. contents:: :depth: 2";				\
+	  echo;								\
+	  for b in $$bases; do echo $$b; done				\
+	    | $(am__create_global_log);					\
+	} >$(TEST_SUITE_LOG).tmp || exit 1;				\
+	mv $(TEST_SUITE_LOG).tmp $(TEST_SUITE_LOG);			\
+	if $$success; then						\
+	  col="$$grn";							\
+	 else								\
+	  col="$$red";							\
+	  test x"$$VERBOSE" = x || cat $(TEST_SUITE_LOG);		\
+	fi;								\
+	echo "$${col}$$br$${std}"; 					\
+	echo "$${col}Testsuite summary"$(AM_TESTSUITE_SUMMARY_HEADER)"$${std}";	\
+	echo "$${col}$$br$${std}"; 					\
+	create_testsuite_report --maybe-color;				\
+	echo "$$col$$br$$std";						\
+	if $$success; then :; else					\
+	  echo "$${col}See $(subdir)/$(TEST_SUITE_LOG)$${std}";		\
+	  if test -n "$(PACKAGE_BUGREPORT)"; then			\
+	    echo "$${col}Please report to $(PACKAGE_BUGREPORT)$${std}";	\
+	  fi;								\
+	  echo "$$col$$br$$std";					\
+	fi;								\
+	$$success || exit 1
+
+check-TESTS: $(dist_check_SCRIPTS)
+	@list='$(RECHECK_LOGS)';           test -z "$$list" || rm -f $$list
+	@list='$(RECHECK_LOGS:.log=.trs)'; test -z "$$list" || rm -f $$list
+	@test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
+	@set +e; $(am__set_TESTS_bases); \
+	log_list=`for i in $$bases; do echo $$i.log; done`; \
+	trs_list=`for i in $$bases; do echo $$i.trs; done`; \
+	log_list=`echo $$log_list`; trs_list=`echo $$trs_list`; \
+	$(MAKE) $(AM_MAKEFLAGS) $(TEST_SUITE_LOG) TEST_LOGS="$$log_list"; \
+	exit $$?;
+recheck: all $(dist_check_SCRIPTS)
+	@test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
+	@set +e; $(am__set_TESTS_bases); \
+	bases=`for i in $$bases; do echo $$i; done \
+	         | $(am__list_recheck_tests)` || exit 1; \
+	log_list=`for i in $$bases; do echo $$i.log; done`; \
+	log_list=`echo $$log_list`; \
+	$(MAKE) $(AM_MAKEFLAGS) $(TEST_SUITE_LOG) \
+	        am__force_recheck=am--force-recheck \
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+tst-pam_env.log: tst-pam_env
+	@p='tst-pam_env'; \
+	b='tst-pam_env'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+.test.log:
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+	$(am__set_b); \
+	$(am__check_pre) $(TEST_LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_TEST_LOG_DRIVER_FLAGS) $(TEST_LOG_DRIVER_FLAGS) -- $(TEST_LOG_COMPILE) \
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+@am__EXEEXT_TRUE@.test$(EXEEXT).log:
+@am__EXEEXT_TRUE@	@p='$<'; \
+@am__EXEEXT_TRUE@	$(am__set_b); \
+@am__EXEEXT_TRUE@	$(am__check_pre) $(TEST_LOG_DRIVER) --test-name "$$f" \
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+distdir: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
+distdir-am: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+	$(MAKE) $(AM_MAKEFLAGS) $(dist_check_SCRIPTS)
+	$(MAKE) $(AM_MAKEFLAGS) check-TESTS
+check: check-am
+all-am: Makefile $(LTLIBRARIES) $(MANS) $(DATA)
+installdirs:
+	for dir in "$(DESTDIR)$(securelibdir)" "$(DESTDIR)$(man5dir)" "$(DESTDIR)$(man8dir)" "$(DESTDIR)$(secureconfdir)" "$(DESTDIR)$(sysconfdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
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+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
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+installcheck: installcheck-am
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+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+	-test -z "$(TEST_LOGS)" || rm -f $(TEST_LOGS)
+	-test -z "$(TEST_LOGS:.log=.trs)" || rm -f $(TEST_LOGS:.log=.trs)
+	-test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
+
+clean-generic:
+	-test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+	-test -z "$(MAINTAINERCLEANFILES)" || rm -f $(MAINTAINERCLEANFILES)
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-securelibLTLIBRARIES \
+	mostlyclean-am
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+distclean: distclean-am
+		-rm -f ./$(DEPDIR)/pam_env.Plo
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
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+maintainer-clean: maintainer-clean-am
+		-rm -f ./$(DEPDIR)/pam_env.Plo
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+	uninstall-man uninstall-securelibLTLIBRARIES
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+uninstall-man: uninstall-man5 uninstall-man8
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+.MAKE: check-am install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-TESTS \
+	check-am clean clean-generic clean-libtool \
+	clean-securelibLTLIBRARIES 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-data \
+	install-data-am install-dist_secureconfDATA \
+	install-dist_sysconfDATA install-dvi install-dvi-am \
+	install-exec install-exec-am install-html install-html-am \
+	install-info install-info-am install-man install-man5 \
+	install-man8 install-pdf install-pdf-am install-ps \
+	install-ps-am install-securelibLTLIBRARIES install-strip \
+	installcheck installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	recheck tags tags-am uninstall uninstall-am \
+	uninstall-dist_secureconfDATA uninstall-dist_sysconfDATA \
+	uninstall-man uninstall-man5 uninstall-man8 \
+	uninstall-securelibLTLIBRARIES
+
+.PRECIOUS: Makefile
+
+@ENABLE_REGENERATE_MAN_TRUE@environment.5: pam_env.conf.5.xml
+@ENABLE_REGENERATE_MAN_TRUE@-include $(top_srcdir)/Make.xml.rules
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/modules/pam_env/README b/modules/pam_env/README
new file mode 100644
index 0000000..a040caf
--- /dev/null
+++ b/modules/pam_env/README
@@ -0,0 +1,101 @@
+pam_env — PAM module to set/unset environment variables
+
+━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+
+DESCRIPTION
+
+The pam_env PAM module allows the (un)setting of environment variables.
+Supported is the use of previously set environment variables as well as 
+PAM_ITEMs such as PAM_RHOST.
+
+By default rules for (un)setting of variables are taken from the config file /
+etc/security/pam_env.conf. An alternate file can be specified with the conffile
+option.
+
+Second a file (/etc/environment by default) with simple KEY=VAL pairs on
+separate lines will be read. With the envfile option an alternate file can be
+specified. And with the readenv option this can be completely disabled.
+
+Third it will read a user configuration file ($HOME/.pam_environment by
+default). The default file can be changed with the user_envfile option and it
+can be turned on and off with the user_readenv option.
+
+Since setting of PAM environment variables can have side effects to other
+modules, this module should be the last one on the stack.
+
+OPTIONS
+
+conffile=/path/to/pam_env.conf
+
+    Indicate an alternative pam_env.conf style configuration file to override
+    the default. This can be useful when different services need different
+    environments.
+
+debug
+
+    A lot of debug information is printed with syslog(3).
+
+envfile=/path/to/environment
+
+    Indicate an alternative environment file to override the default. The
+    syntax are simple KEY=VAL pairs on separate lines. The export instruction
+    can be specified for bash compatibility, but will be ignored. This can be
+    useful when different services need different environments.
+
+readenv=0|1
+
+    Turns on or off the reading of the file specified by envfile (0 is off, 1
+    is on). By default this option is on.
+
+user_envfile=filename
+
+    Indicate an alternative .pam_environment file to override the default.The
+    syntax is the same as for /etc/security/pam_env.conf. The filename is
+    relative to the user home directory. This can be useful when different
+    services need different environments.
+
+user_readenv=0|1
+
+    Turns on or off the reading of the user specific environment file. 0 is
+    off, 1 is on. By default this option is off as user supplied environment
+    variables in the PAM environment could affect behavior of subsequent
+    modules in the stack without the consent of the system administrator.
+
+    Due to problematic security this functionality is deprecated since the
+    1.5.0 version and will be removed completely at some point in the future.
+
+EXAMPLES
+
+These are some example lines which might be specified in /etc/security/
+pam_env.conf.
+
+Set the REMOTEHOST variable for any hosts that are remote, default to
+"localhost" rather than not being set at all
+
+      REMOTEHOST     DEFAULT=localhost OVERRIDE=@{PAM_RHOST}
+
+
+Set the DISPLAY variable if it seems reasonable
+
+      DISPLAY        DEFAULT=${REMOTEHOST}:0.0 OVERRIDE=${DISPLAY}
+
+
+Now some simple variables
+
+      PAGER          DEFAULT=less
+      MANPAGER       DEFAULT=less
+      LESS           DEFAULT="M q e h15 z23 b80"
+      NNTPSERVER     DEFAULT=localhost
+      PATH           DEFAULT=${HOME}/bin:/usr/local/bin:/bin\
+      :/usr/bin:/usr/local/bin/X11:/usr/bin/X11
+      XDG_DATA_HOME  DEFAULT=@{HOME}/share/
+
+
+Silly examples of escaped variables, just to show how they work.
+
+      DOLLAR         DEFAULT=\$
+      DOLLARDOLLAR   DEFAULT=        OVERRIDE=\$${DOLLAR}
+      DOLLARPLUS     DEFAULT=\${REMOTEHOST}${REMOTEHOST}
+      ATSIGN         DEFAULT=""      OVERRIDE=\@
+
+
diff --git a/modules/pam_env/README.xml b/modules/pam_env/README.xml
new file mode 100644
index 0000000..21a9b85
--- /dev/null
+++ b/modules/pam_env/README.xml
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding='UTF-8'?>
+<!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
+"http://www.docbook.org/xml/4.3/docbookx.dtd"
+[
+<!--
+<!ENTITY pamaccess SYSTEM "pam_env.8.xml">
+-->
+<!--
+<!ENTITY accessconf SYSTEM "pam_env.conf.5.xml">
+-->
+]>
+
+<article>
+
+  <articleinfo>
+
+    <title>
+      <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
+      href="pam_env.8.xml" xpointer='xpointer(//refnamediv[@id = "pam_env-name"]/*)'/>
+    </title>
+
+  </articleinfo>
+
+  <section>
+    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
+      href="pam_env.8.xml" xpointer='xpointer(//refsect1[@id = "pam_env-description"]/*)'/>
+  </section>
+
+  <section>
+    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
+      href="pam_env.8.xml" xpointer='xpointer(//refsect1[@id = "pam_env-options"]/*)'/>
+  </section>
+
+  <section>
+    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
+      href="pam_env.conf.5.xml" xpointer='xpointer(//refsect1[@id = "pam_env.conf-examples"]/*)'/>
+  </section>
+
+</article>
diff --git a/modules/pam_env/environment b/modules/pam_env/environment
new file mode 100644
index 0000000..3e704a6
--- /dev/null
+++ b/modules/pam_env/environment
@@ -0,0 +1,5 @@
+#
+# This file is parsed by pam_env module
+#
+# Syntax: simple "KEY=VAL" pairs on separate lines
+#
diff --git a/modules/pam_env/environment.5 b/modules/pam_env/environment.5
new file mode 100644
index 0000000..aa670e2
--- /dev/null
+++ b/modules/pam_env/environment.5
@@ -0,0 +1 @@
+.so man5/pam_env.conf.5
diff --git a/modules/pam_env/pam_env.8 b/modules/pam_env/pam_env.8
new file mode 100644
index 0000000..8b0d519
--- /dev/null
+++ b/modules/pam_env/pam_env.8
@@ -0,0 +1,160 @@
+'\" t
+.\"     Title: pam_env
+.\"    Author: [see the "AUTHOR" section]
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 09/03/2021
+.\"    Manual: Linux-PAM Manual
+.\"    Source: Linux-PAM Manual
+.\"  Language: English
+.\"
+.TH "PAM_ENV" "8" "09/03/2021" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_env \- PAM module to set/unset environment variables
+.SH "SYNOPSIS"
+.HP \w'\fBpam_env\&.so\fR\ 'u
+\fBpam_env\&.so\fR [debug] [conffile=\fIconf\-file\fR] [envfile=\fIenv\-file\fR] [readenv=\fI0|1\fR] [user_envfile=\fIenv\-file\fR] [user_readenv=\fI0|1\fR]
+.SH "DESCRIPTION"
+.PP
+The pam_env PAM module allows the (un)setting of environment variables\&. Supported is the use of previously set environment variables as well as
+\fIPAM_ITEM\fRs such as
+\fIPAM_RHOST\fR\&.
+.PP
+By default rules for (un)setting of variables are taken from the config file
+/etc/security/pam_env\&.conf\&. An alternate file can be specified with the
+\fIconffile\fR
+option\&.
+.PP
+Second a file (/etc/environment
+by default) with simple
+\fIKEY=VAL\fR
+pairs on separate lines will be read\&. With the
+\fIenvfile\fR
+option an alternate file can be specified\&. And with the
+\fIreadenv\fR
+option this can be completely disabled\&.
+.PP
+Third it will read a user configuration file ($HOME/\&.pam_environment
+by default)\&. The default file can be changed with the
+\fIuser_envfile\fR
+option and it can be turned on and off with the
+\fIuser_readenv\fR
+option\&.
+.PP
+Since setting of PAM environment variables can have side effects to other modules, this module should be the last one on the stack\&.
+.SH "OPTIONS"
+.PP
+\fBconffile=\fR\fB\fI/path/to/pam_env\&.conf\fR\fR
+.RS 4
+Indicate an alternative
+pam_env\&.conf
+style configuration file to override the default\&. This can be useful when different services need different environments\&.
+.RE
+.PP
+\fBdebug\fR
+.RS 4
+A lot of debug information is printed with
+\fBsyslog\fR(3)\&.
+.RE
+.PP
+\fBenvfile=\fR\fB\fI/path/to/environment\fR\fR
+.RS 4
+Indicate an alternative
+environment
+file to override the default\&. The syntax are simple
+\fIKEY=VAL\fR
+pairs on separate lines\&. The
+\fIexport\fR
+instruction can be specified for bash compatibility, but will be ignored\&. This can be useful when different services need different environments\&.
+.RE
+.PP
+\fBreadenv=\fR\fB\fI0|1\fR\fR
+.RS 4
+Turns on or off the reading of the file specified by envfile (0 is off, 1 is on)\&. By default this option is on\&.
+.RE
+.PP
+\fBuser_envfile=\fR\fB\fIfilename\fR\fR
+.RS 4
+Indicate an alternative
+\&.pam_environment
+file to override the default\&.The syntax is the same as for
+\fI/etc/security/pam_env\&.conf\fR\&. The filename is relative to the user home directory\&. This can be useful when different services need different environments\&.
+.RE
+.PP
+\fBuser_readenv=\fR\fB\fI0|1\fR\fR
+.RS 4
+Turns on or off the reading of the user specific environment file\&. 0 is off, 1 is on\&. By default this option is off as user supplied environment variables in the PAM environment could affect behavior of subsequent modules in the stack without the consent of the system administrator\&.
+.sp
+Due to problematic security this functionality is deprecated since the 1\&.5\&.0 version and will be removed completely at some point in the future\&.
+.RE
+.SH "MODULE TYPES PROVIDED"
+.PP
+The
+\fBauth\fR
+and
+\fBsession\fR
+module types are provided\&.
+.SH "RETURN VALUES"
+.PP
+PAM_ABORT
+.RS 4
+Not all relevant data or options could be gotten\&.
+.RE
+.PP
+PAM_BUF_ERR
+.RS 4
+Memory buffer error\&.
+.RE
+.PP
+PAM_IGNORE
+.RS 4
+No pam_env\&.conf and environment file was found\&.
+.RE
+.PP
+PAM_SUCCESS
+.RS 4
+Environment variables were set\&.
+.RE
+.SH "FILES"
+.PP
+/etc/security/pam_env\&.conf
+.RS 4
+Default configuration file
+.RE
+.PP
+/etc/environment
+.RS 4
+Default environment file
+.RE
+.PP
+$HOME/\&.pam_environment
+.RS 4
+User specific environment file
+.RE
+.SH "SEE ALSO"
+.PP
+\fBpam_env.conf\fR(5),
+\fBpam.d\fR(5),
+\fBpam\fR(8),
+\fBenviron\fR(7)\&.
+.SH "AUTHOR"
+.PP
+pam_env was written by Dave Kinchlea <kinch@kinch\&.ark\&.com>\&.
diff --git a/modules/pam_env/pam_env.8.xml b/modules/pam_env/pam_env.8.xml
new file mode 100644
index 0000000..75ff862
--- /dev/null
+++ b/modules/pam_env/pam_env.8.xml
@@ -0,0 +1,271 @@
+<?xml version="1.0" encoding="ISO-8859-1"?>
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
+                   "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
+
+<refentry id='pam_env'>
+
+  <refmeta>
+    <refentrytitle>pam_env</refentrytitle>
+    <manvolnum>8</manvolnum>
+    <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo>
+  </refmeta>
+
+  <refnamediv id='pam_env-name'>
+    <refname>pam_env</refname>
+    <refpurpose>
+      PAM module to set/unset environment variables
+    </refpurpose>
+  </refnamediv>
+
+<!-- body begins here -->
+
+  <refsynopsisdiv>
+    <cmdsynopsis id="pam_env-cmdsynopsis">
+      <command>pam_env.so</command>
+      <arg choice="opt">
+        debug
+      </arg>
+      <arg choice="opt">
+        conffile=<replaceable>conf-file</replaceable>
+      </arg>
+      <arg choice="opt">
+        envfile=<replaceable>env-file</replaceable>
+      </arg>
+      <arg choice="opt">
+        readenv=<replaceable>0|1</replaceable>
+      </arg>
+      <arg choice="opt">
+        user_envfile=<replaceable>env-file</replaceable>
+      </arg>
+      <arg choice="opt">
+        user_readenv=<replaceable>0|1</replaceable>
+      </arg>
+    </cmdsynopsis>
+  </refsynopsisdiv>
+
+
+  <refsect1 id="pam_env-description">
+    <title>DESCRIPTION</title>
+    <para>
+      The pam_env PAM module allows the (un)setting of environment
+      variables. Supported is the use of previously set environment
+      variables as well as <emphasis>PAM_ITEM</emphasis>s such as
+      <emphasis>PAM_RHOST</emphasis>.
+    </para>
+    <para>
+      By default rules for (un)setting of variables are taken from the
+      config file <filename>/etc/security/pam_env.conf</filename>. An
+      alternate file can be specified with the <emphasis>conffile</emphasis>
+      option.
+    </para>
+    <para>
+      Second a file (<filename>/etc/environment</filename> by default) with simple
+      <emphasis>KEY=VAL</emphasis> pairs on separate lines will be read.
+      With the <emphasis>envfile</emphasis> option an alternate file can be specified.
+      And with the <emphasis>readenv</emphasis> option this can be completely disabled.
+    </para>
+    <para>
+      Third it will read a user configuration file
+      (<filename>$HOME/.pam_environment</filename> by default).
+      The default file can be changed with the
+      <emphasis>user_envfile</emphasis> option
+      and it can be turned on and off with the <emphasis>user_readenv</emphasis> option.
+    </para>
+    <para>
+      Since setting of PAM environment variables can have side effects
+      to other modules, this module should be the last one on the stack.
+    </para>
+  </refsect1>
+
+  <refsect1 id="pam_env-options">
+    <title>OPTIONS</title>
+    <variablelist>
+
+      <varlistentry>
+        <term>
+          <option>conffile=<replaceable>/path/to/pam_env.conf</replaceable></option>
+        </term>
+        <listitem>
+          <para>
+            Indicate an alternative <filename>pam_env.conf</filename>
+            style configuration file to override the default. This can
+            be useful when different services need different environments.
+          </para>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term>
+          <option>debug</option>
+        </term>
+        <listitem>
+          <para>
+            A lot of debug information is printed with
+            <citerefentry><refentrytitle>syslog</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
+          </para>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term>
+          <option>envfile=<replaceable>/path/to/environment</replaceable></option>
+        </term>
+        <listitem>
+          <para>
+            Indicate an alternative <filename>environment</filename>
+            file to override the default. The syntax are simple
+	    <emphasis>KEY=VAL</emphasis> pairs on separate lines. The
+	    <emphasis>export</emphasis> instruction can be specified for bash
+	    compatibility, but will be ignored.
+	    This can be useful when different  services need different environments.
+          </para>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term>
+          <option>readenv=<replaceable>0|1</replaceable></option>
+        </term>
+        <listitem>
+          <para>
+            Turns on or off the reading of the file specified by envfile
+            (0 is off, 1 is on). By default this option is on.
+          </para>
+        </listitem>
+      </varlistentry>
+
+
+      <varlistentry>
+        <term>
+          <option>user_envfile=<replaceable>filename</replaceable></option>
+        </term>
+        <listitem>
+          <para>
+            Indicate an alternative <filename>.pam_environment</filename>
+            file to override the default.The syntax is the same as
+	    for <emphasis>/etc/security/pam_env.conf</emphasis>.
+	    The filename is relative to the user home directory.
+	    This can be useful when different services need different
+	    environments.
+          </para>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term>
+          <option>user_readenv=<replaceable>0|1</replaceable></option>
+        </term>
+        <listitem>
+          <para>
+            Turns on or off the reading of the user specific environment
+            file. 0 is off, 1 is on. By default this option is off as user
+            supplied environment variables in the PAM environment could affect
+            behavior of subsequent modules in the stack without the consent
+            of the system administrator.
+          </para>
+          <para>
+            Due to problematic security this functionality is deprecated
+            since the 1.5.0 version and will be removed completely at some
+            point in the future.
+          </para>
+        </listitem>
+      </varlistentry>
+
+    </variablelist>
+  </refsect1>
+
+  <refsect1 id="pam_env-types">
+    <title>MODULE TYPES PROVIDED</title>
+    <para>
+      The <option>auth</option> and <option>session</option> module
+      types are provided.
+    </para>
+  </refsect1>
+
+  <refsect1 id="pam_env-return_values">
+    <title>RETURN VALUES</title>
+    <variablelist>
+      <varlistentry>
+        <term>PAM_ABORT</term>
+        <listitem>
+           <para>
+             Not all relevant data or options could be gotten.
+          </para>
+        </listitem>
+      </varlistentry>
+      <varlistentry>
+        <term>PAM_BUF_ERR</term>
+        <listitem>
+           <para>
+              Memory buffer error.
+          </para>
+        </listitem>
+      </varlistentry>
+      <varlistentry>
+        <term>PAM_IGNORE</term>
+        <listitem>
+           <para>
+             No pam_env.conf and environment file was found.
+          </para>
+        </listitem>
+      </varlistentry>
+      <varlistentry>
+        <term>PAM_SUCCESS</term>
+        <listitem>
+           <para>
+             Environment variables were set.
+          </para>
+        </listitem>
+      </varlistentry>
+    </variablelist>
+  </refsect1>
+
+  <refsect1 id="pam_env-files">
+    <title>FILES</title>
+    <variablelist>
+      <varlistentry>
+        <term><filename>/etc/security/pam_env.conf</filename></term>
+        <listitem>
+          <para>Default configuration file</para>
+        </listitem>
+      </varlistentry>
+      <varlistentry>
+        <term><filename>/etc/environment</filename></term>
+        <listitem>
+          <para>Default environment file</para>
+        </listitem>
+      </varlistentry>
+      <varlistentry>
+        <term><filename>$HOME/.pam_environment</filename></term>
+        <listitem>
+          <para>User specific environment file</para>
+        </listitem>
+      </varlistentry>
+    </variablelist>
+  </refsect1>
+
+  <refsect1 id="pam_env-see_also">
+    <title>SEE ALSO</title>
+    <para>
+      <citerefentry>
+        <refentrytitle>pam_env.conf</refentrytitle><manvolnum>5</manvolnum>
+      </citerefentry>,
+      <citerefentry>
+        <refentrytitle>pam.d</refentrytitle><manvolnum>5</manvolnum>
+      </citerefentry>,
+      <citerefentry>
+        <refentrytitle>pam</refentrytitle><manvolnum>8</manvolnum>
+      </citerefentry>,
+      <citerefentry>
+        <refentrytitle>environ</refentrytitle><manvolnum>7</manvolnum>
+      </citerefentry>.
+    </para>
+  </refsect1>
+
+  <refsect1 id="pam_env-authors">
+    <title>AUTHOR</title>
+    <para>
+      pam_env was written by Dave Kinchlea &lt;kinch@kinch.ark.com&gt;.
+    </para>
+  </refsect1>
+</refentry>
diff --git a/modules/pam_env/pam_env.c b/modules/pam_env/pam_env.c
new file mode 100644
index 0000000..f5f8cea
--- /dev/null
+++ b/modules/pam_env/pam_env.c
@@ -0,0 +1,894 @@
+/*
+ * pam_env module
+ *
+ * Written by Dave Kinchlea <kinch@kinch.ark.com> 1997/01/31
+ * Inspired by Andrew Morgan <morgan@kernel.org>, who also supplied the
+ * template for this file (via pam_mail)
+ */
+
+#define DEFAULT_ETC_ENVFILE     "/etc/environment"
+#define DEFAULT_READ_ENVFILE    1
+
+#define DEFAULT_USER_ENVFILE    ".pam_environment"
+#define DEFAULT_USER_READ_ENVFILE 0
+
+#include "config.h"
+
+#include <ctype.h>
+#include <errno.h>
+#include <pwd.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syslog.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <security/pam_modules.h>
+#include <security/pam_modutil.h>
+#include <security/_pam_macros.h>
+#include <security/pam_ext.h>
+#include "pam_inline.h"
+
+/* This little structure makes it easier to keep variables together */
+
+typedef struct var {
+  char *name;
+  char *value;
+  char *defval;
+  char *override;
+} VAR;
+
+#define BUF_SIZE 8192
+#define MAX_ENV  8192
+
+#define GOOD_LINE    0
+#define BAD_LINE     100       /* This must be > the largest PAM_* error code */
+
+#define DEFINE_VAR   101
+#define UNDEFINE_VAR 102
+#define ILLEGAL_VAR  103
+
+static int  _assemble_line(FILE *, char *, int);
+static int  _parse_line(const pam_handle_t *, const char *, VAR *);
+static int  _check_var(pam_handle_t *, VAR *);           /* This is the real meat */
+static void _clean_var(VAR *);
+static int  _expand_arg(pam_handle_t *, char **);
+static const char * _pam_get_item_byname(pam_handle_t *, const char *);
+static int  _define_var(pam_handle_t *, int, VAR *);
+static int  _undefine_var(pam_handle_t *, int, VAR *);
+
+/* This is a special value used to designate an empty string */
+static char quote='\0';
+
+/* argument parsing */
+
+#define PAM_DEBUG_ARG       0x01
+
+static int
+_pam_parse (const pam_handle_t *pamh, int argc, const char **argv,
+	    const char **conffile, const char **envfile, int *readenv,
+	    const char **user_envfile, int *user_readenv)
+{
+    int ctrl=0;
+
+    *user_envfile = DEFAULT_USER_ENVFILE;
+    *envfile = DEFAULT_ETC_ENVFILE;
+    *readenv = DEFAULT_READ_ENVFILE;
+    *user_readenv = DEFAULT_USER_READ_ENVFILE;
+    *conffile = DEFAULT_CONF_FILE;
+
+    /* step through arguments */
+    for (; argc-- > 0; ++argv) {
+	const char *str;
+
+	/* generic options */
+
+	if (!strcmp(*argv,"debug"))
+	    ctrl |= PAM_DEBUG_ARG;
+	else if ((str = pam_str_skip_prefix(*argv, "conffile=")) != NULL) {
+	  if (str[0] == '\0') {
+	    pam_syslog(pamh, LOG_ERR,
+		       "conffile= specification missing argument - ignored");
+	  } else {
+	    *conffile = str;
+	    D(("new Configuration File: %s", *conffile));
+	  }
+	} else if ((str = pam_str_skip_prefix(*argv, "envfile=")) != NULL) {
+	  if (str[0] == '\0') {
+	    pam_syslog (pamh, LOG_ERR,
+			"envfile= specification missing argument - ignored");
+	  } else {
+	    *envfile = str;
+	    D(("new Env File: %s", *envfile));
+	  }
+	} else if ((str = pam_str_skip_prefix(*argv, "user_envfile=")) != NULL) {
+	  if (str[0] == '\0') {
+	    pam_syslog (pamh, LOG_ERR,
+			"user_envfile= specification missing argument - ignored");
+	  } else {
+	    *user_envfile = str;
+	    D(("new User Env File: %s", *user_envfile));
+	  }
+	} else if ((str = pam_str_skip_prefix(*argv, "readenv=")) != NULL) {
+	  *readenv = atoi(str);
+	} else if ((str = pam_str_skip_prefix(*argv, "user_readenv=")) != NULL) {
+	  *user_readenv = atoi(str);
+	} else
+	  pam_syslog(pamh, LOG_ERR, "unknown option: %s", *argv);
+    }
+
+    if (*user_readenv)
+	pam_syslog(pamh, LOG_DEBUG, "deprecated reading of user environment enabled");
+
+    return ctrl;
+}
+
+static int
+_parse_config_file(pam_handle_t *pamh, int ctrl, const char *file)
+{
+    int retval;
+    char buffer[BUF_SIZE];
+    FILE *conf;
+    VAR Var, *var=&Var;
+
+    D(("Called."));
+
+    var->name=NULL; var->defval=NULL; var->override=NULL;
+
+    D(("Config file name is: %s", file));
+
+    /*
+     * Lets try to open the config file, parse it and process
+     * any variables found.
+     */
+
+    if ((conf = fopen(file,"r")) == NULL) {
+      pam_syslog(pamh, LOG_ERR, "Unable to open config file: %s: %m", file);
+      return PAM_IGNORE;
+    }
+
+    /* _pam_assemble_line will provide a complete line from the config file,
+     * with all comments removed and any escaped newlines fixed up
+     */
+
+    while (( retval = _assemble_line(conf, buffer, BUF_SIZE)) > 0) {
+      D(("Read line: %s", buffer));
+
+      if ((retval = _parse_line(pamh, buffer, var)) == GOOD_LINE) {
+	retval = _check_var(pamh, var);
+
+	if (DEFINE_VAR == retval) {
+	  retval = _define_var(pamh, ctrl, var);
+
+	} else if (UNDEFINE_VAR == retval) {
+	  retval = _undefine_var(pamh, ctrl, var);
+	}
+      }
+      if (PAM_SUCCESS != retval && ILLEGAL_VAR != retval
+	  && BAD_LINE != retval && PAM_BAD_ITEM != retval) break;
+
+      _clean_var(var);
+
+    }  /* while */
+
+    (void) fclose(conf);
+
+    /* tidy up */
+    _clean_var(var);        /* We could have got here prematurely,
+			     * this is safe though */
+    D(("Exit."));
+    return (retval != 0 ? PAM_ABORT : PAM_SUCCESS);
+}
+
+static int
+_parse_env_file(pam_handle_t *pamh, int ctrl, const char *file)
+{
+    int retval=PAM_SUCCESS, i, t;
+    char buffer[BUF_SIZE], *key, *mark;
+    FILE *conf;
+
+    D(("Env file name is: %s", file));
+
+    if ((conf = fopen(file,"r")) == NULL) {
+      pam_syslog(pamh, LOG_ERR, "Unable to open env file: %s: %m", file);
+      return PAM_IGNORE;
+    }
+
+    while (_assemble_line(conf, buffer, BUF_SIZE) > 0) {
+	D(("Read line: %s", buffer));
+	key = buffer;
+
+	/* skip leading white space */
+	key += strspn(key, " \n\t");
+
+	/* skip blanks lines and comments */
+	if (key[0] == '#')
+	    continue;
+
+	/* skip over "export " if present so we can be compat with
+	   bash type declarations */
+	if (strncmp(key, "export ", (size_t) 7) == 0)
+	    key += 7;
+
+	/* now find the end of value */
+	mark = key;
+	while(mark[0] != '\n' && mark[0] != '#' && mark[0] != '\0')
+	    mark++;
+	if (mark[0] != '\0')
+	    mark[0] = '\0';
+
+       /*
+	* sanity check, the key must be alphanumeric
+	*/
+
+	if (key[0] == '=') {
+		pam_syslog(pamh, LOG_ERR,
+		           "missing key name '%s' in %s', ignoring",
+		           key, file);
+		continue;
+	}
+
+	for ( i = 0 ; key[i] != '=' && key[i] != '\0' ; i++ )
+	    if (!isalnum(key[i]) && key[i] != '_') {
+		pam_syslog(pamh, LOG_ERR,
+		           "non-alphanumeric key '%s' in %s', ignoring",
+		           key, file);
+		break;
+	    }
+	/* non-alphanumeric key, ignore this line */
+	if (key[i] != '=' && key[i] != '\0')
+	    continue;
+
+	/* now we try to be smart about quotes around the value,
+	   but not too smart, we can't get all fancy with escaped
+	   values like bash */
+	if (key[i] == '=' && (key[++i] == '\"' || key[i] == '\'')) {
+	    for ( t = i+1 ; key[t] != '\0' ; t++)
+		if (key[t] != '\"' && key[t] != '\'')
+		    key[i++] = key[t];
+		else if (key[t+1] != '\0')
+		    key[i++] = key[t];
+	    key[i] = '\0';
+	}
+
+	/* if this is a request to delete a variable, check that it's
+	   actually set first, so we don't get a vague error back from
+	   pam_putenv() */
+	for (i = 0; key[i] != '=' && key[i] != '\0'; i++);
+
+	if (key[i] == '\0' && !pam_getenv(pamh,key))
+	    continue;
+
+	/* set the env var, if it fails, we break out of the loop */
+	retval = pam_putenv(pamh, key);
+	if (retval != PAM_SUCCESS) {
+	    D(("error setting env \"%s\"", key));
+	    break;
+	} else if (ctrl & PAM_DEBUG_ARG) {
+	    pam_syslog(pamh, LOG_DEBUG,
+		       "pam_putenv(\"%s\")", key);
+	}
+    }
+
+    (void) fclose(conf);
+
+    /* tidy up */
+    D(("Exit."));
+    return retval;
+}
+
+/*
+ * This is where we read a line of the PAM config file. The line may be
+ * preceded by lines of comments and also extended with "\\\n"
+ */
+
+static int _assemble_line(FILE *f, char *buffer, int buf_len)
+{
+    char *p = buffer;
+    char *s, *os;
+    int used = 0;
+    int whitespace;
+
+    /* loop broken with a 'break' when a non-'\\n' ended line is read */
+
+    D(("called."));
+    for (;;) {
+	if (used >= buf_len) {
+	    /* Overflow */
+	    D(("_assemble_line: overflow"));
+	    return -1;
+	}
+	if (fgets(p, buf_len - used, f) == NULL) {
+	    if (used) {
+		/* Incomplete read */
+		return -1;
+	    } else {
+		/* EOF */
+		return 0;
+	    }
+	}
+	if (p[0] == '\0') {
+	    D(("_assemble_line: corrupted or binary file"));
+	    return -1;
+	}
+	if (p[strlen(p)-1] != '\n' && !feof(f)) {
+	    D(("_assemble_line: line too long"));
+	    return -1;
+	}
+
+	/* skip leading spaces --- line may be blank */
+
+	whitespace = strspn(p, " \n\t");
+	s = p + whitespace;
+	if (*s && (*s != '#')) {
+	    used += whitespace;
+	    os = s;
+
+	    /*
+	     * we are only interested in characters before the first '#'
+	     * character
+	     */
+
+	    while (*s && *s != '#')
+		 ++s;
+	    if (*s == '#') {
+		 *s = '\0';
+		 used += strlen(os);
+		 break;                /* the line has been read */
+	    }
+
+	    s = os;
+
+	    /*
+	     * Check for backslash by scanning back from the end of
+	     * the entered line, the '\n' has been included since
+	     * normally a line is terminated with this
+	     * character. fgets() should only return one though!
+	     */
+
+	    s += strlen(s);
+	    while (s > os && ((*--s == ' ') || (*s == '\t')
+			      || (*s == '\n')));
+
+	    /* check if it ends with a backslash */
+	    if (*s == '\\') {
+		*s = '\0';              /* truncate the line here */
+		used += strlen(os);
+		p = s;                  /* there is more ... */
+	    } else {
+		/* End of the line! */
+		used += strlen(os);
+		break;                  /* this is the complete line */
+	    }
+
+	} else {
+	    /* Nothing in this line */
+	    /* Don't move p         */
+	}
+    }
+
+    return used;
+}
+
+static int
+_parse_line (const pam_handle_t *pamh, const char *buffer, VAR *var)
+{
+  /*
+   * parse buffer into var, legal syntax is
+   * VARIABLE [DEFAULT=[[string]] [OVERRIDE=[value]]
+   *
+   * Any other options defined make this a bad line,
+   * error logged and no var set
+   */
+
+  int length, quoteflg=0;
+  const char *ptr, *tmpptr;
+  char **valptr;
+
+  D(("Called buffer = <%s>", buffer));
+
+  length = strcspn(buffer," \t\n");
+
+  if ((var->name = malloc(length + 1)) == NULL) {
+    pam_syslog(pamh, LOG_CRIT, "Couldn't malloc %d bytes", length+1);
+    return PAM_BUF_ERR;
+  }
+
+  /*
+   * The first thing on the line HAS to be the variable name,
+   * it may be the only thing though.
+   */
+  strncpy(var->name, buffer, length);
+  var->name[length] = '\0';
+  D(("var->name = <%s>, length = %d", var->name, length));
+
+  /*
+   * Now we check for arguments, we only support two kinds and ('cause I am lazy)
+   * each one can actually be listed any number of times
+   */
+
+  ptr = buffer+length;
+  while ((length = strspn(ptr, " \t")) > 0) {
+    ptr += length;                              /* remove leading whitespace */
+    D((ptr));
+    if ((tmpptr = pam_str_skip_prefix(ptr, "DEFAULT=")) != NULL) {
+      ptr = tmpptr;
+      D(("Default arg found: <%s>", ptr));
+      valptr=&(var->defval);
+    } else if ((tmpptr = pam_str_skip_prefix(ptr, "OVERRIDE=")) != NULL) {
+      ptr = tmpptr;
+      D(("Override arg found: <%s>", ptr));
+      valptr=&(var->override);
+    } else {
+      D(("Unrecognized options: <%s> - ignoring line", ptr));
+      pam_syslog(pamh, LOG_ERR, "Unrecognized Option: %s - ignoring line", ptr);
+      return BAD_LINE;
+    }
+
+    if ('"' != *ptr) {       /* Escaped quotes not supported */
+      length = strcspn(ptr, " \t\n");
+      tmpptr = ptr+length;
+    } else {
+      tmpptr = strchr(++ptr, '"');
+      if (!tmpptr) {
+	D(("Unterminated quoted string: %s", ptr-1));
+	pam_syslog(pamh, LOG_ERR, "Unterminated quoted string: %s", ptr-1);
+	return BAD_LINE;
+      }
+      length = tmpptr - ptr;
+      if (*++tmpptr && ' ' != *tmpptr && '\t' != *tmpptr && '\n' != *tmpptr) {
+	D(("Quotes must cover the entire string: <%s>", ptr));
+	pam_syslog(pamh, LOG_ERR, "Quotes must cover the entire string: <%s>", ptr);
+	return BAD_LINE;
+      }
+      quoteflg++;
+    }
+    if (length) {
+      if ((*valptr = malloc(length + 1)) == NULL) {
+	D(("Couldn't malloc %d bytes", length+1));
+	pam_syslog(pamh, LOG_CRIT, "Couldn't malloc %d bytes", length+1);
+	return PAM_BUF_ERR;
+      }
+      (void)strncpy(*valptr,ptr,length);
+      (*valptr)[length]='\0';
+    } else if (quoteflg--) {
+      *valptr = &quote;      /* a quick hack to handle the empty string */
+    }
+    ptr = tmpptr;         /* Start the search where we stopped */
+  } /* while */
+
+  /*
+   * The line is parsed, all is well.
+   */
+
+  D(("Exit."));
+  ptr = NULL; tmpptr = NULL; valptr = NULL;
+  return GOOD_LINE;
+}
+
+static int _check_var(pam_handle_t *pamh, VAR *var)
+{
+  /*
+   * Examine the variable and determine what action to take.
+   * Returns DEFINE_VAR, UNDEFINE_VAR depending on action to take
+   * or a PAM_* error code if passed back from other routines
+   *
+   * if no DEFAULT provided, the empty string is assumed
+   * if no OVERRIDE provided, the empty string is assumed
+   * if DEFAULT=  and OVERRIDE evaluates to the empty string,
+   *    this variable should be undefined
+   * if DEFAULT=""  and OVERRIDE evaluates to the empty string,
+   *    this variable should be defined with no value
+   * if OVERRIDE=value   and value turns into the empty string, DEFAULT is used
+   *
+   * If DEFINE_VAR is to be returned, the correct value to define will
+   * be pointed to by var->value
+   */
+
+  int retval;
+
+  D(("Called."));
+
+  /*
+   * First thing to do is to expand any arguments, but only
+   * if they are not the special quote values (cause expand_arg
+   * changes memory).
+   */
+
+  if (var->defval && (&quote != var->defval) &&
+      ((retval = _expand_arg(pamh, &(var->defval))) != PAM_SUCCESS)) {
+      return retval;
+  }
+  if (var->override && (&quote != var->override) &&
+      ((retval = _expand_arg(pamh, &(var->override))) != PAM_SUCCESS)) {
+    return retval;
+  }
+
+  /* Now its easy */
+
+  if (var->override && *(var->override)) {
+    /* if there is a non-empty string in var->override, we use it */
+    D(("OVERRIDE variable <%s> being used: <%s>", var->name, var->override));
+    var->value = var->override;
+    retval = DEFINE_VAR;
+  } else {
+
+    var->value = var->defval;
+    if (&quote == var->defval) {
+      /*
+       * This means that the empty string was given for defval value
+       * which indicates that a variable should be defined with no value
+       */
+      D(("An empty variable: <%s>", var->name));
+      retval = DEFINE_VAR;
+    } else if (var->defval) {
+      D(("DEFAULT variable <%s> being used: <%s>", var->name, var->defval));
+      retval = DEFINE_VAR;
+    } else {
+      D(("UNDEFINE variable <%s>", var->name));
+      retval = UNDEFINE_VAR;
+    }
+  }
+
+  D(("Exit."));
+  return retval;
+}
+
+static int _expand_arg(pam_handle_t *pamh, char **value)
+{
+  const char *orig=*value, *tmpptr=NULL;
+  char *ptr;       /*
+		    * Sure would be nice to use tmpptr but it needs to be
+		    * a constant so that the compiler will shut up when I
+		    * call pam_getenv and _pam_get_item_byname -- sigh
+		    */
+
+  /* No unexpanded variable can be bigger than BUF_SIZE */
+  char type, tmpval[BUF_SIZE];
+
+  /* I know this shouldn't be hard-coded but it's so much easier this way */
+  char tmp[MAX_ENV];
+  size_t idx;
+
+  D(("Remember to initialize tmp!"));
+  memset(tmp, 0, MAX_ENV);
+  idx = 0;
+
+  /*
+   * (possibly non-existent) environment variables can be used as values
+   * by prepending a "$" and wrapping in {} (ie: ${HOST}), can escape with "\"
+   * (possibly non-existent) PAM items can be used as values
+   * by prepending a "@" and wrapping in {} (ie: @{PAM_RHOST}, can escape
+   *
+   */
+  D(("Expanding <%s>",orig));
+  while (*orig) {     /* while there is some input to deal with */
+    if ('\\' == *orig) {
+      ++orig;
+      if ('$' != *orig && '@' != *orig) {
+	D(("Unrecognized escaped character: <%c> - ignoring", *orig));
+	pam_syslog(pamh, LOG_ERR,
+		   "Unrecognized escaped character: <%c> - ignoring",
+		   *orig);
+      } else if (idx + 1 < MAX_ENV) {
+	tmp[idx++] = *orig++;        /* Note the increment */
+      } else {
+	/* is it really a good idea to try to log this? */
+	D(("Variable buffer overflow: <%s> + <%s>", tmp, tmpptr));
+	pam_syslog (pamh, LOG_ERR, "Variable buffer overflow: <%s> + <%s>",
+		 tmp, tmpptr);
+	return PAM_BUF_ERR;
+      }
+      continue;
+    }
+    if ('$' == *orig || '@' == *orig) {
+      if ('{' != *(orig+1)) {
+	D(("Expandable variables must be wrapped in {}"
+	   " <%s> - ignoring", orig));
+	pam_syslog(pamh, LOG_ERR, "Expandable variables must be wrapped in {}"
+		 " <%s> - ignoring", orig);
+	if (idx + 1 < MAX_ENV) {
+	  tmp[idx++] = *orig++;        /* Note the increment */
+	}
+	continue;
+      } else {
+	D(("Expandable argument: <%s>", orig));
+	type = *orig;
+	orig+=2;     /* skip the ${ or @{ characters */
+	ptr = strchr(orig, '}');
+	if (ptr) {
+	  *ptr++ = '\0';
+	} else {
+	  D(("Unterminated expandable variable: <%s>", orig-2));
+	  pam_syslog(pamh, LOG_ERR,
+		     "Unterminated expandable variable: <%s>", orig-2);
+	  return PAM_ABORT;
+	}
+	strncpy(tmpval, orig, sizeof(tmpval));
+	tmpval[sizeof(tmpval)-1] = '\0';
+	orig=ptr;
+	/*
+	 * so, we know we need to expand tmpval, it is either
+	 * an environment variable or a PAM_ITEM. type will tell us which
+	 */
+	switch (type) {
+
+	case '$':
+	  D(("Expanding env var: <%s>",tmpval));
+	  tmpptr = pam_getenv(pamh, tmpval);
+	  D(("Expanded to <%s>", tmpptr));
+	  break;
+
+	case '@':
+	  D(("Expanding pam item: <%s>",tmpval));
+	  tmpptr = _pam_get_item_byname(pamh, tmpval);
+	  D(("Expanded to <%s>", tmpptr));
+	  break;
+
+	default:
+	  D(("Impossible error, type == <%c>", type));
+	  pam_syslog(pamh, LOG_CRIT, "Impossible error, type == <%c>", type);
+	  return PAM_ABORT;
+	}         /* switch */
+
+	if (tmpptr) {
+	  size_t len = strlen(tmpptr);
+	  if (idx + len < MAX_ENV) {
+	    strcpy(tmp + idx, tmpptr);
+	    idx += len;
+	  } else {
+	    /* is it really a good idea to try to log this? */
+	    D(("Variable buffer overflow: <%s> + <%s>", tmp, tmpptr));
+	    pam_syslog (pamh, LOG_ERR,
+			"Variable buffer overflow: <%s> + <%s>", tmp, tmpptr);
+	    return PAM_BUF_ERR;
+	  }
+	}
+      }           /* if ('{' != *orig++) */
+    } else {      /* if ( '$' == *orig || '@' == *orig) */
+      if (idx + 1 < MAX_ENV) {
+	tmp[idx++] = *orig++;        /* Note the increment */
+      } else {
+	/* is it really a good idea to try to log this? */
+	D(("Variable buffer overflow: <%s> + <%s>", tmp, tmpptr));
+	pam_syslog(pamh, LOG_ERR,
+		   "Variable buffer overflow: <%s> + <%s>", tmp, tmpptr);
+	return PAM_BUF_ERR;
+      }
+    }
+  }              /* for (;*orig;) */
+
+  if (idx > strlen(*value)) {
+    free(*value);
+    if ((*value = malloc(idx + 1)) == NULL) {
+      D(("Couldn't malloc %d bytes for expanded var", idx + 1));
+      pam_syslog (pamh, LOG_CRIT, "Couldn't malloc %lu bytes for expanded var",
+	       (unsigned long)idx+1);
+      return PAM_BUF_ERR;
+    }
+  }
+  strcpy(*value, tmp);
+  memset(tmp, '\0', sizeof(tmp));
+  D(("Exit."));
+
+  return PAM_SUCCESS;
+}
+
+static const char * _pam_get_item_byname(pam_handle_t *pamh, const char *name)
+{
+  /*
+   * This function just allows me to use names as given in the config
+   * file and translate them into the appropriate PAM_ITEM macro
+   */
+
+  int item;
+  const void *itemval;
+
+  D(("Called."));
+  if (strcmp(name, "PAM_USER") == 0 || strcmp(name, "HOME") == 0 || strcmp(name, "SHELL") == 0) {
+    item = PAM_USER;
+  } else if (strcmp(name, "PAM_USER_PROMPT") == 0) {
+    item = PAM_USER_PROMPT;
+  } else if (strcmp(name, "PAM_TTY") == 0) {
+    item = PAM_TTY;
+  } else if (strcmp(name, "PAM_RUSER") == 0) {
+    item = PAM_RUSER;
+  } else if (strcmp(name, "PAM_RHOST") == 0) {
+    item = PAM_RHOST;
+  } else {
+    D(("Unknown PAM_ITEM: <%s>", name));
+    pam_syslog (pamh, LOG_ERR, "Unknown PAM_ITEM: <%s>", name);
+    return NULL;
+  }
+
+  if (pam_get_item(pamh, item, &itemval) != PAM_SUCCESS) {
+    D(("pam_get_item failed"));
+    return NULL;     /* let pam_get_item() log the error */
+  }
+
+  if (itemval && (strcmp(name, "HOME") == 0 || strcmp(name, "SHELL") == 0)) {
+    struct passwd *user_entry;
+    user_entry = pam_modutil_getpwnam (pamh, itemval);
+    if (!user_entry) {
+      pam_syslog(pamh, LOG_ERR, "No such user!?");
+      return NULL;
+    }
+    return (strcmp(name, "SHELL") == 0) ?
+      user_entry->pw_shell :
+      user_entry->pw_dir;
+  }
+
+  D(("Exit."));
+  return itemval;
+}
+
+static int _define_var(pam_handle_t *pamh, int ctrl, VAR *var)
+{
+  /* We have a variable to define, this is a simple function */
+
+  char *envvar;
+  int retval = PAM_SUCCESS;
+
+  D(("Called."));
+  if (asprintf(&envvar, "%s=%s", var->name, var->value) < 0) {
+    pam_syslog(pamh, LOG_CRIT, "out of memory");
+    return PAM_BUF_ERR;
+  }
+
+  retval = pam_putenv(pamh, envvar);
+  if (ctrl & PAM_DEBUG_ARG) {
+    pam_syslog(pamh, LOG_DEBUG, "pam_putenv(\"%s\")", envvar);
+  }
+  _pam_drop(envvar);
+  D(("Exit."));
+  return retval;
+}
+
+static int _undefine_var(pam_handle_t *pamh, int ctrl, VAR *var)
+{
+  /* We have a variable to undefine, this is a simple function */
+
+  D(("Called and exit."));
+  if (ctrl & PAM_DEBUG_ARG) {
+    pam_syslog(pamh, LOG_DEBUG, "remove variable \"%s\"", var->name);
+  }
+  return pam_putenv(pamh, var->name);
+}
+
+static void   _clean_var(VAR *var)
+{
+    if (var->name) {
+      free(var->name);
+    }
+    if (var->defval && (&quote != var->defval)) {
+      free(var->defval);
+    }
+    if (var->override && (&quote != var->override)) {
+      free(var->override);
+    }
+    var->name = NULL;
+    var->value = NULL;    /* never has memory specific to it */
+    var->defval = NULL;
+    var->override = NULL;
+    return;
+}
+
+
+
+/* --- authentication management functions (only) --- */
+
+int
+pam_sm_authenticate (pam_handle_t *pamh UNUSED, int flags UNUSED,
+		     int argc UNUSED, const char **argv UNUSED)
+{
+  return PAM_IGNORE;
+}
+
+static int
+handle_env (pam_handle_t *pamh, int argc, const char **argv)
+{
+  int retval, ctrl, readenv=DEFAULT_READ_ENVFILE;
+  int user_readenv = DEFAULT_USER_READ_ENVFILE;
+  const char *conf_file = NULL, *env_file = NULL, *user_env_file = NULL;
+
+  /*
+   * this module sets environment variables read in from a file
+   */
+
+  D(("Called."));
+  ctrl = _pam_parse(pamh, argc, argv, &conf_file, &env_file,
+		    &readenv, &user_env_file, &user_readenv);
+
+  retval = _parse_config_file(pamh, ctrl, conf_file);
+
+  if(readenv && retval == PAM_SUCCESS) {
+    retval = _parse_env_file(pamh, ctrl, env_file);
+    if (retval == PAM_IGNORE)
+      retval = PAM_SUCCESS;
+  }
+
+  if(user_readenv && retval == PAM_SUCCESS) {
+    char *envpath = NULL;
+    struct passwd *user_entry = NULL;
+    const char *username;
+    struct stat statbuf;
+
+    username = _pam_get_item_byname(pamh, "PAM_USER");
+
+    if (username)
+      user_entry = pam_modutil_getpwnam (pamh, username);
+    if (!user_entry) {
+      pam_syslog(pamh, LOG_ERR, "No such user!?");
+    }
+    else {
+      if (asprintf(&envpath, "%s/%s", user_entry->pw_dir, user_env_file) < 0)
+	{
+	  pam_syslog(pamh, LOG_CRIT, "Out of memory");
+	  return PAM_BUF_ERR;
+	}
+      if (stat(envpath, &statbuf) == 0) {
+	PAM_MODUTIL_DEF_PRIVS(privs);
+
+	if (pam_modutil_drop_priv(pamh, &privs, user_entry)) {
+	  retval = PAM_SESSION_ERR;
+	} else {
+	  retval = _parse_config_file(pamh, ctrl, envpath);
+	  if (pam_modutil_regain_priv(pamh, &privs))
+	    retval = PAM_SESSION_ERR;
+	}
+        if (retval == PAM_IGNORE)
+          retval = PAM_SUCCESS;
+      }
+      free(envpath);
+    }
+  }
+
+  /* indicate success or failure */
+  D(("Exit."));
+  return retval;
+}
+
+int
+pam_sm_acct_mgmt (pam_handle_t *pamh UNUSED, int flags UNUSED,
+		  int argc UNUSED, const char **argv UNUSED)
+{
+  pam_syslog (pamh, LOG_NOTICE, "pam_sm_acct_mgmt called inappropriately");
+  return PAM_SERVICE_ERR;
+}
+
+int
+pam_sm_setcred (pam_handle_t *pamh, int flags UNUSED,
+		int argc, const char **argv)
+{
+  D(("Called"));
+  return handle_env (pamh, argc, argv);
+}
+
+int
+pam_sm_open_session (pam_handle_t *pamh, int flags UNUSED,
+		     int argc, const char **argv)
+{
+  D(("Called"));
+  return handle_env (pamh, argc, argv);
+}
+
+int
+pam_sm_close_session (pam_handle_t *pamh UNUSED, int flags UNUSED,
+		      int argc UNUSED, const char **argv UNUSED)
+{
+  D(("Called and Exit"));
+  return PAM_SUCCESS;
+}
+
+int
+pam_sm_chauthtok (pam_handle_t *pamh UNUSED, int flags UNUSED,
+		  int argc UNUSED, const char **argv UNUSED)
+{
+  pam_syslog (pamh, LOG_NOTICE, "pam_sm_chauthtok called inappropriately");
+  return PAM_SERVICE_ERR;
+}
+
+/* end of module definition */
diff --git a/modules/pam_env/pam_env.conf b/modules/pam_env/pam_env.conf
new file mode 100644
index 0000000..2549e43
--- /dev/null
+++ b/modules/pam_env/pam_env.conf
@@ -0,0 +1,73 @@
+#
+# This is the configuration file for pam_env, a PAM module to load in
+# a configurable list of environment variables for a
+#
+# The original idea for this came from Andrew G. Morgan ...
+#<quote>
+#   Mmm. Perhaps you might like to write a pam_env module that reads a
+#   default environment from a file? I can see that as REALLY
+#   useful... Note it would be an "auth" module that returns PAM_IGNORE
+#   for the auth part and sets the environment returning PAM_SUCCESS in
+#   the setcred function...
+#</quote>
+#
+# What I wanted was the REMOTEHOST variable set, purely for selfish
+# reasons, and AGM didn't want it added to the SimpleApps login
+# program (which is where I added the patch). So, my first concern is
+# that variable, from there there are numerous others that might/would
+# be useful to be set: NNTPSERVER, LESS, PATH, PAGER, MANPAGER .....
+#
+# Of course, these are a different kind of variable than REMOTEHOST in
+# that they are things that are likely to be configured by
+# administrators rather than set by logging in, how to treat them both
+# in the same config file?
+#
+# Here is my idea:
+#
+# Each line starts with the variable name, there are then two possible
+# options for each variable DEFAULT and OVERRIDE.
+# DEFAULT allows an administrator to set the value of the
+# variable  to some default value, if none is supplied then the empty
+# string is assumed. The OVERRIDE option tells pam_env that it should
+# enter in its value (overriding the default value) if there is one
+# to use. OVERRIDE is not used, "" is assumed and no override will be
+# done.
+#
+# VARIABLE   [DEFAULT=[value]]  [OVERRIDE=[value]]
+#
+# (Possibly non-existent) environment variables may be used in values
+# using the ${string} syntax and (possibly non-existent) PAM_ITEMs may
+# be used in values using the @{string} syntax. Both the $ and @
+# characters can be backslash escaped to be used as literal values
+# values can be delimited with "", escaped " not supported.
+# Note that many environment variables that you would like to use
+# may not be set by the time the module is called.
+# For example, HOME is used below several times, but
+# many PAM applications don't make it available by the time you need it.
+#
+#
+# First, some special variables
+#
+# Set the REMOTEHOST variable for any hosts that are remote, default
+# to "localhost" rather than not being set at all
+#REMOTEHOST	DEFAULT=localhost OVERRIDE=@{PAM_RHOST}
+#
+# Set the DISPLAY variable if it seems reasonable
+#DISPLAY		DEFAULT=${REMOTEHOST}:0.0 OVERRIDE=${DISPLAY}
+#
+#
+#  Now some simple variables
+#
+#PAGER		DEFAULT=less
+#MANPAGER	DEFAULT=less
+#LESS		DEFAULT="M q e h15 z23 b80"
+#NNTPSERVER	DEFAULT=localhost
+#PATH		DEFAULT=${HOME}/bin:/usr/local/bin:/bin\
+#:/usr/bin:/usr/local/bin/X11:/usr/bin/X11
+#
+# silly examples of escaped variables, just to show how they work.
+#
+#DOLLAR		DEFAULT=\$
+#DOLLARDOLLAR	DEFAULT=	OVERRIDE=\$${DOLLAR}
+#DOLLARPLUS	DEFAULT=\${REMOTEHOST}${REMOTEHOST}
+#ATSIGN		DEFAULT=""	OVERRIDE=\@
diff --git a/modules/pam_env/pam_env.conf.5 b/modules/pam_env/pam_env.conf.5
new file mode 100644
index 0000000..40fd118
--- /dev/null
+++ b/modules/pam_env/pam_env.conf.5
@@ -0,0 +1,132 @@
+'\" t
+.\"     Title: pam_env.conf
+.\"    Author: [see the "AUTHOR" section]
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 09/03/2021
+.\"    Manual: Linux-PAM Manual
+.\"    Source: Linux-PAM Manual
+.\"  Language: English
+.\"
+.TH "PAM_ENV\&.CONF" "5" "09/03/2021" "Linux-PAM Manual" "Linux\-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_env.conf, environment \- the environment variables config files
+.SH "DESCRIPTION"
+.PP
+The
+/etc/security/pam_env\&.conf
+file specifies the environment variables to be set, unset or modified by
+\fBpam_env\fR(8)\&. When someone logs in, this file is read and the environment variables are set according\&.
+.PP
+Each line starts with the variable name, there are then two possible options for each variable DEFAULT and OVERRIDE\&. DEFAULT allows an administrator to set the value of the variable to some default value, if none is supplied then the empty string is assumed\&. The OVERRIDE option tells pam_env that it should enter in its value (overriding the default value) if there is one to use\&. OVERRIDE is not used, "" is assumed and no override will be done\&.
+.PP
+\fIVARIABLE\fR
+[\fIDEFAULT=[value]\fR] [\fIOVERRIDE=[value]\fR]
+.PP
+(Possibly non\-existent) environment variables may be used in values using the ${string} syntax and (possibly non\-existent) PAM_ITEMs as well as HOME and SHELL may be used in values using the @{string} syntax\&. Both the $ and @ characters can be backslash escaped to be used as literal values values can be delimited with "", escaped " not supported\&. Note that many environment variables that you would like to use may not be set by the time the module is called\&. For example, ${HOME} is used below several times, but many PAM applications don\*(Aqt make it available by the time you need it\&. The special variables @{HOME} and @{SHELL} are expanded to the values for the user from his
+\fIpasswd\fR
+entry\&.
+.PP
+The "\fI#\fR" character at start of line (no space at front) can be used to mark this line as a comment line\&.
+.PP
+The
+/etc/environment
+file specifies the environment variables to be set\&. The file must consist of simple
+\fINAME=VALUE\fR
+pairs on separate lines\&. The
+\fBpam_env\fR(8)
+module will read the file after the
+pam_env\&.conf
+file\&.
+.SH "EXAMPLES"
+.PP
+These are some example lines which might be specified in
+/etc/security/pam_env\&.conf\&.
+.PP
+Set the REMOTEHOST variable for any hosts that are remote, default to "localhost" rather than not being set at all
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+      REMOTEHOST     DEFAULT=localhost OVERRIDE=@{PAM_RHOST}
+    
+.fi
+.if n \{\
+.RE
+.\}
+.PP
+Set the DISPLAY variable if it seems reasonable
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+      DISPLAY        DEFAULT=${REMOTEHOST}:0\&.0 OVERRIDE=${DISPLAY}
+    
+.fi
+.if n \{\
+.RE
+.\}
+.PP
+Now some simple variables
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+      PAGER          DEFAULT=less
+      MANPAGER       DEFAULT=less
+      LESS           DEFAULT="M q e h15 z23 b80"
+      NNTPSERVER     DEFAULT=localhost
+      PATH           DEFAULT=${HOME}/bin:/usr/local/bin:/bin\e
+      :/usr/bin:/usr/local/bin/X11:/usr/bin/X11
+      XDG_DATA_HOME  DEFAULT=@{HOME}/share/
+    
+.fi
+.if n \{\
+.RE
+.\}
+.PP
+Silly examples of escaped variables, just to show how they work\&.
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+      DOLLAR         DEFAULT=\e$
+      DOLLARDOLLAR   DEFAULT=        OVERRIDE=\e$${DOLLAR}
+      DOLLARPLUS     DEFAULT=\e${REMOTEHOST}${REMOTEHOST}
+      ATSIGN         DEFAULT=""      OVERRIDE=\e@
+    
+.fi
+.if n \{\
+.RE
+.\}
+.SH "SEE ALSO"
+.PP
+\fBpam_env\fR(8),
+\fBpam.d\fR(5),
+\fBpam\fR(8),
+\fBenviron\fR(7)
+.SH "AUTHOR"
+.PP
+pam_env was written by Dave Kinchlea <kinch@kinch\&.ark\&.com>\&.
diff --git a/modules/pam_env/pam_env.conf.5.xml b/modules/pam_env/pam_env.conf.5.xml
new file mode 100644
index 0000000..fca046f
--- /dev/null
+++ b/modules/pam_env/pam_env.conf.5.xml
@@ -0,0 +1,136 @@
+<?xml version="1.0" encoding='UTF-8'?>
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
+        "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd">
+
+<refentry id="pam_env.conf">
+
+  <refmeta>
+    <refentrytitle>pam_env.conf</refentrytitle>
+    <manvolnum>5</manvolnum>
+    <refmiscinfo class="sectdesc">Linux-PAM Manual</refmiscinfo>
+  </refmeta>
+
+  <refnamediv>
+    <refname>pam_env.conf</refname>
+    <refname>environment</refname>
+    <refpurpose>the environment variables config files</refpurpose>
+  </refnamediv>
+
+
+  <refsect1 id='pam_env.conf-description'>
+    <title>DESCRIPTION</title>
+
+    <para>
+      The <filename>/etc/security/pam_env.conf</filename> file specifies
+      the environment variables to be set, unset or modified by
+      <citerefentry><refentrytitle>pam_env</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
+      When someone logs in, this file is read and the environment
+      variables are set according.
+    </para>
+    <para>
+      Each line starts with the variable name, there are then two possible
+      options for each variable DEFAULT and OVERRIDE. DEFAULT allows an
+      administrator to set the value of the variable  to some default
+      value, if none is supplied then the empty string is assumed. The
+      OVERRIDE option tells pam_env that it should enter in its value
+      (overriding the default value) if there is one to use. OVERRIDE is
+      not used, "" is assumed and no override will be done.
+    </para>
+    <para>
+      <replaceable>VARIABLE</replaceable>
+      [<replaceable>DEFAULT=[value]</replaceable>]
+      [<replaceable>OVERRIDE=[value]</replaceable>]
+    </para>
+
+    <para>
+      (Possibly non-existent) environment variables may be used in values
+      using the ${string} syntax and (possibly non-existent) PAM_ITEMs as well
+      as HOME and SHELL may be used in values using the @{string} syntax. Both
+      the $ and @ characters can be backslash escaped to be used as literal values
+      values can be delimited with "", escaped " not supported.
+      Note that many environment variables that you would like to use
+      may not be set by the time the module is called.
+      For example, ${HOME} is used below several times, but
+      many PAM applications don't make it available by the time you need it.
+      The special variables @{HOME} and @{SHELL} are expanded to the values
+      for the user from his <emphasis>passwd</emphasis> entry.
+    </para>
+
+    <para>
+      The "<emphasis>#</emphasis>" character at start of line (no space
+      at front) can be used to mark this line as a comment line.
+    </para>
+
+    <para>
+      The <filename>/etc/environment</filename> file specifies
+      the environment variables to be set. The file must consist of simple
+      <emphasis>NAME=VALUE</emphasis> pairs on separate lines.
+      The <citerefentry><refentrytitle>pam_env</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+      module will read the file after the <filename>pam_env.conf</filename>
+      file.
+    </para>
+  </refsect1>
+
+  <refsect1 id="pam_env.conf-examples">
+    <title>EXAMPLES</title>
+    <para>
+      These are some example lines which might be specified in
+      <filename>/etc/security/pam_env.conf</filename>.
+    </para>
+
+    <para>
+      Set the REMOTEHOST variable for any hosts that are remote, default
+      to "localhost" rather than not being set at all
+    </para>
+    <programlisting>
+      REMOTEHOST     DEFAULT=localhost OVERRIDE=@{PAM_RHOST}
+    </programlisting>
+
+    <para>
+      Set the DISPLAY variable if it seems reasonable
+    </para>
+    <programlisting>
+      DISPLAY        DEFAULT=${REMOTEHOST}:0.0 OVERRIDE=${DISPLAY}
+    </programlisting>
+
+    <para>
+      Now some simple variables
+    </para>
+    <programlisting>
+      PAGER          DEFAULT=less
+      MANPAGER       DEFAULT=less
+      LESS           DEFAULT="M q e h15 z23 b80"
+      NNTPSERVER     DEFAULT=localhost
+      PATH           DEFAULT=${HOME}/bin:/usr/local/bin:/bin\
+      :/usr/bin:/usr/local/bin/X11:/usr/bin/X11
+      XDG_DATA_HOME  DEFAULT=@{HOME}/share/
+    </programlisting>
+
+    <para>
+      Silly examples of escaped variables, just to show how they work.
+    </para>
+    <programlisting>
+      DOLLAR         DEFAULT=\$
+      DOLLARDOLLAR   DEFAULT=        OVERRIDE=\$${DOLLAR}
+      DOLLARPLUS     DEFAULT=\${REMOTEHOST}${REMOTEHOST}
+      ATSIGN         DEFAULT=""      OVERRIDE=\@
+    </programlisting>
+  </refsect1>
+
+  <refsect1 id="pam_env.conf-see_also">
+    <title>SEE ALSO</title>
+    <para>
+      <citerefentry><refentrytitle>pam_env</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
+      <citerefentry><refentrytitle>pam.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+      <citerefentry><refentrytitle>pam</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
+      <citerefentry><refentrytitle>environ</refentrytitle><manvolnum>7</manvolnum></citerefentry>
+    </para>
+  </refsect1>
+
+  <refsect1 id="pam_env.conf-author">
+    <title>AUTHOR</title>
+    <para>
+      pam_env was written by Dave Kinchlea &lt;kinch@kinch.ark.com&gt;.
+    </para>
+  </refsect1>
+</refentry>
diff --git a/modules/pam_env/tst-pam_env b/modules/pam_env/tst-pam_env
new file mode 100755
index 0000000..c40e70a
--- /dev/null
+++ b/modules/pam_env/tst-pam_env
@@ -0,0 +1,2 @@
+#!/bin/sh
+../../tests/tst-dlopen .libs/pam_env.so