diff options
Diffstat (limited to '')
74 files changed, 14785 insertions, 0 deletions
diff --git a/lib/sh/Makefile.in b/lib/sh/Makefile.in new file mode 100644 index 0000000..98064de --- /dev/null +++ b/lib/sh/Makefile.in @@ -0,0 +1,639 @@ +# +# Makefile for the Bash library +# +# +# Copyright (C) 1998-2020 Free Software Foundation, Inc. + +# 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 3 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 <http://www.gnu.org/licenses/>. + +PACKAGE = @PACKAGE_NAME@ +VERSION = @PACKAGE_VERSION@ + +PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@ +PACKAGE_NAME = @PACKAGE_NAME@ +PACKAGE_STRING = @PACKAGE_STRING@ +PACKAGE_VERSION = @PACKAGE_VERSION@ + +srcdir = @srcdir@ +VPATH = @srcdir@ +topdir = @top_srcdir@ +BUILD_DIR = @BUILD_DIR@ + +LIBBUILD = ${BUILD_DIR}/lib + +BASHINCDIR = ${topdir}/include + +INTL_LIBSRC = ${topdir}/lib/intl +INTL_BUILDDIR = ${LIBBUILD}/intl +INTL_INC = @INTL_INC@ +LIBINTL_H = @LIBINTL_H@ + +datarootdir = @datarootdir@ + +INSTALL = @INSTALL@ +INSTALL_PROGRAM = @INSTALL_PROGRAM@ +INSTALL_DATA = @INSTALL_DATA@ + +CC = @CC@ +RANLIB = @RANLIB@ +AR = @AR@ +ARFLAGS = @ARFLAGS@ +RM = rm -f +CP = cp +MV = mv + +SHELL = @MAKE_SHELL@ + +CFLAGS = @CFLAGS@ +LOCAL_CFLAGS = @LOCAL_CFLAGS@ ${DEBUG} +CPPFLAGS = @CPPFLAGS@ +LDFLAGS = @LDFLAGS@ @LOCAL_LDFLAGS@ + +PROFILE_FLAGS = @PROFILE_FLAGS@ + +DEFS = @DEFS@ +LOCAL_DEFS = @LOCAL_DEFS@ + +INCLUDES = -I. -I../.. -I$(topdir) -I$(topdir)/lib -I$(BASHINCDIR) -I$(srcdir) $(INTL_INC) + +CCFLAGS = ${ADDON_CFLAGS} ${PROFILE_FLAGS} ${INCLUDES} $(DEFS) $(LOCAL_DEFS) \ + $(LOCAL_CFLAGS) $(CFLAGS) $(CPPFLAGS) + +GCC_LINT_FLAGS = -Wall -Wshadow -Wpointer-arith -Wcast-qual \ + -Wcast-align -Wstrict-prototypes -Wconversion \ + -Wmissing-prototypes -Wtraditional -Wredundant-decls -pedantic + +.c.o: + $(CC) -c $(CCFLAGS) $< + +# The name of the library target. +LIBRARY_NAME = libsh.a + +# The C code source files for this library. +CSOURCES = clktck.c clock.c getcwd.c getenv.c oslib.c setlinebuf.c \ + strcasecmp.c strerror.c strtod.c strtol.c strtoul.c \ + vprint.c itos.c rename.c zread.c zwrite.c shtty.c \ + inet_aton.c netconn.c netopen.c strpbrk.c timeval.c makepath.c \ + pathcanon.c pathphys.c tmpfile.c stringlist.c stringvec.c spell.c \ + shquote.c strtrans.c strcasestr.c snprintf.c mailstat.c \ + fmtulong.c fmtullong.c fmtumax.c shmatch.c strnlen.c \ + strtoll.c strtoull.c strtoimax.c strtoumax.c memset.c strstr.c \ + mktime.c strftime.c mbschr.c zcatfd.c zmapfd.c winsize.c eaccess.c \ + wcsdup.c fpurge.c zgetline.c mbscmp.c uconvert.c ufuncs.c \ + casemod.c dprintf.c input_avail.c mbscasecmp.c fnxform.c \ + strchrnul.c unicode.c wcswidth.c wcsnwidth.c shmbchar.c strdup.c \ + utf8.c random.c gettimeofday.c + +# The header files for this library. +HSOURCES = + +# The object files contained in $(LIBRARY_NAME) +LIBOBJS = @LIBOBJS@ +OBJECTS = clktck.o clock.o getenv.o oslib.o setlinebuf.o strnlen.o \ + itos.o zread.o zwrite.o shtty.o shmatch.o eaccess.o \ + netconn.o netopen.o timeval.o makepath.o pathcanon.o \ + pathphys.o tmpfile.o stringlist.o stringvec.o spell.o shquote.o \ + strtrans.o snprintf.o mailstat.o fmtulong.o \ + fmtullong.o fmtumax.o zcatfd.o zmapfd.o winsize.o wcsdup.o \ + fpurge.o zgetline.o mbscmp.o uconvert.o ufuncs.o casemod.o \ + input_avail.o mbscasecmp.o fnxform.o unicode.o shmbchar.o \ + utf8.o random.o gettimeofday.o wcsnwidth.o ${LIBOBJS} + +SUPPORT = Makefile + +all: $(LIBRARY_NAME) + +$(LIBRARY_NAME): $(OBJECTS) + $(RM) $@ + $(AR) $(ARFLAGS) $@ $(OBJECTS) + -test -n "$(RANLIB)" && $(RANLIB) $@ + +force: + +# The rule for 'includes' is written funny so that the if statement +# always returns TRUE unless there really was an error installing the +# include files. +install: + +clean: + $(RM) $(OBJECTS) $(LIBRARY_NAME) + +realclean distclean maintainer-clean: clean + $(RM) Makefile + +mostlyclean: clean + +# Dependencies + +${BUILD_DIR}/version.h: ${BUILD_DIR}/config.h ${BUILD_DIR}/Makefile Makefile + -( cd ${BUILD_DIR} && ${MAKE} ${MFLAGS} version.h ) + +${BUILD_DIR}/pathnames.h: ${BUILD_DIR}/config.h ${BUILD_DIR}/Makefile Makefile + -( cd ${BUILD_DIR} && ${MAKE} ${MFLAGS} pathnames.h ) + +# rules for losing makes, like SunOS +casemod.o: casemod.c +clktck.o: clktck.c +clock.o: clock.c +eaccess.o: eaccess.c +dprintf.o: dprintf.c +fmtullong.o: fmtullong.c +fmtulong.o: fmtulong.c +fmtumax.o: fmtumax.c +fnxform.o: fnxform.c +fpurge.o: fpurge.c +getcwd.o: getcwd.c +getenv.o: getenv.c +gettimeofday.o: gettimeofday.c +inet_aton.o: inet_aton.c +input_avail.o: input_avail.c +itos.o: itos.c +mailstat.o: mailstat.c +makepath.o: makepath.c +mbscasecmp.o: mbscasecmp.c +mbschr.o: mbschr.c +mbscmp.o: mbscmp.c +memset.o: memset.c +mktime.o: mktime.c +netconn.o: netconn.c +netopen.o: netopen.c +oslib.o: oslib.c +pathcanon.o: pathcanon.c +pathphys.o: pathphys.c +random.o: random.c +rename.o: rename.c +setlinebuf.o: setlinebuf.c +shmatch.o: shmatch.c +shmbchar.o: shmbchar.c +shquote.o: shquote.c +shtty.o: shtty.c +snprintf.o: snprintf.c +spell.o: spell.c +strcasecmp.o: strcasecmp.c +strchrnul.o: strchrnul.c +strerror.o: strerror.c +strftime.o: strftime.c +strcasestr.o: strcasestr.c +stringlist.o: stringlist.c +stringvec.o: stringvec.c +strnlen.o: strnlen.c +strpbrk.o: strpbrk.c +strtod.o: strtod.c +strtoimax.o: strtoimax.c +strtol.o: strtol.c +strtoll.o: strtoll.c +strtoul.o: strtoul.c +strtoull.o: strtoull.c +strtoumax.o: strtoumax.c +strtrans.o: strtrans.c +times.o: times.c +timeval.o: timeval.c +tmpfile.o: tmpfile.c +uconvert.o: uconvert.c +ufuncs.o: ufuncs.c +unicode.o: unicode.c +utf8.o: utf8.c +vprint.o: vprint.c +wcsdup.o: wcsdup.c +wcsnwidth.o: wcsnwidth.c +wcswidth.o: wcswidth.c +winsize.o: winsize.c +zcatfd.o: zcatfd.c +zmapfd.o: zmapfd.c +zgetline.o: zgetline.c +zread.o: zread.c +zwrite.o: zwrite.c + +# dependencies for c files that include other c files +fmtullong.o: fmtulong.c +fmtumax.o: fmtulong.c +strtoll.o: strtol.c +strtoul.o: strtol.c +strtoull.o: strtol.c + +# all files in the library depend on config.h +casemod.o: ${BUILD_DIR}/config.h +clktck.o: ${BUILD_DIR}/config.h +clock.o: ${BUILD_DIR}/config.h +eaccess.o: ${BUILD_DIR}/config.h +dprintf.o: ${BUILD_DIR}/config.h +fmtullong.o: ${BUILD_DIR}/config.h +fmtulong.o: ${BUILD_DIR}/config.h +fmtumax.o: ${BUILD_DIR}/config.h +fnxform.o: ${BUILD_DIR}/config.h +fpurge.o: ${BUILD_DIR}/config.h +getcwd.o: ${BUILD_DIR}/config.h +getenv.o: ${BUILD_DIR}/config.h +gettimeofday.o: ${BUILD_DIR}/config.h +inet_aton.o: ${BUILD_DIR}/config.h +input_avail.o: ${BUILD_DIR}/config.h +itos.o: ${BUILD_DIR}/config.h +mailstat.o: ${BUILD_DIR}/config.h +makepath.o: ${BUILD_DIR}/config.h +mbscasecmp.o: ${BUILD_DIR}/config.h +mbschr.o: ${BUILD_DIR}/config.h +mbscmp.o: ${BUILD_DIR}/config.h +memset.o: ${BUILD_DIR}/config.h +mktime.o: ${BUILD_DIR}/config.h +netconn.o: ${BUILD_DIR}/config.h +netopen.o: ${BUILD_DIR}/config.h +oslib.o: ${BUILD_DIR}/config.h +pathcanon.o: ${BUILD_DIR}/config.h +pathphys.o: ${BUILD_DIR}/config.h +random.o: ${BUILD_DIR}/config.h +rename.o: ${BUILD_DIR}/config.h +setlinebuf.o: ${BUILD_DIR}/config.h +shmatch.o: ${BUILD_DIR}/config.h +shmbchar.o: ${BUILD_DIR}/config.h +shquote.o: ${BUILD_DIR}/config.h +shtty.o: ${BUILD_DIR}/config.h +snprintf.o: ${BUILD_DIR}/config.h +spell.o: ${BUILD_DIR}/config.h +strcasecmp.o: ${BUILD_DIR}/config.h +strchrnul.o: ${BUILD_DIR}/config.h +strerror.o: ${BUILD_DIR}/config.h +strftime.o: ${BUILD_DIR}/config.h +strcasestr.o: ${BUILD_DIR}/config.h +stringlist.o: ${BUILD_DIR}/config.h +stringvec.o: ${BUILD_DIR}/config.h +strnlen.o: ${BUILD_DIR}/config.h +strpbrk.o: ${BUILD_DIR}/config.h +strtod.o: ${BUILD_DIR}/config.h +strtoimax.o: ${BUILD_DIR}/config.h +strtol.o: ${BUILD_DIR}/config.h +strtoll.o: ${BUILD_DIR}/config.h +strtoul.o: ${BUILD_DIR}/config.h +strtoull.o: ${BUILD_DIR}/config.h +strtoumax.o: ${BUILD_DIR}/config.h +strtrans.o: ${BUILD_DIR}/config.h +times.o: ${BUILD_DIR}/config.h +timeval.o: ${BUILD_DIR}/config.h +tmpfile.o: ${BUILD_DIR}/config.h ${topdir}/config-top.h +uconvert.o: ${BUILD_DIR}/config.h +ufuncs.o: ${BUILD_DIR}/config.h +unicode.o: ${BUILD_DIR}/config.h +utf8.o: ${BUILD_DIR}/config.h +vprint.o: ${BUILD_DIR}/config.h +wcsdup.o: ${BUILD_DIR}/config.h +wcsnwidth.o: ${BUILD_DIR}/config.h +wcswidth.o: ${BUILD_DIR}/config.h +winsize.o: ${BUILD_DIR}/config.h +zcatfd.o: ${BUILD_DIR}/config.h +zgetline.o: ${BUILD_DIR}/config.h +zmapfd.o: ${BUILD_DIR}/config.h +zread.o: ${BUILD_DIR}/config.h +zwrite.o: ${BUILD_DIR}/config.h + +clktck.o: ${topdir}/bashtypes.h + +getcwd.o: ${topdir}/bashtypes.h ${topdir}/bashansi.h ${BASHINCDIR}/maxpath.h +getcwd.o: ${BASHINCDIR}/posixstat.h ${BASHINCDIR}/posixdir.h +getcwd.o: ${BASHINCDIR}/memalloc.h ${BASHINCDIR}/ansi_stdlib.h + +getenv.o: ${topdir}/bashansi.h ${BASHINCDIR}/ansi_stdlib.h +getenv.o: ${topdir}/shell.h ${topdir}/syntax.h ${topdir}/bashjmp.h ${BASHINCDIR}/posixjmp.h +getenv.o: ${topdir}/command.h ${BASHINCDIR}/stdc.h ${topdir}/error.h +getenv.o: ${topdir}/general.h ${topdir}/bashtypes.h ${topdir}/variables.h ${topdir}/conftypes.h +getenv.o: ${topdir}/array.h ${topdir}/hashlib.h ${topdir}/quit.h +getenv.o: ${topdir}/unwind_prot.h ${topdir}/dispose_cmd.h +getenv.o: ${topdir}/make_cmd.h ${topdir}/subst.h ${topdir}/sig.h +getenv.o: ${BUILD_DIR}/pathnames.h ${topdir}/externs.h +#getenv.o: ${BUILD_DIR}/version.h + +inet_aton.o: ${topdir}/bashansi.h ${BASHINCDIR}/ansi_stdlib.h +inet_aton.o: ${BASHINCDIR}/stdc.h + +itos.o: ${topdir}/bashansi.h ${BASHINCDIR}/ansi_stdlib.h +itos.o: ${topdir}/shell.h ${topdir}/syntax.h ${topdir}/bashjmp.h ${BASHINCDIR}/posixjmp.h +itos.o: ${topdir}/command.h ${BASHINCDIR}/stdc.h ${topdir}/error.h +itos.o: ${topdir}/general.h ${topdir}/bashtypes.h ${topdir}/variables.h ${topdir}/conftypes.h +itos.o: ${topdir}/array.h ${topdir}/hashlib.h ${topdir}/quit.h +itos.o: ${topdir}/unwind_prot.h ${topdir}/dispose_cmd.h +itos.o: ${topdir}/make_cmd.h ${topdir}/subst.h ${topdir}/sig.h +itos.o: ${BUILD_DIR}/pathnames.h ${topdir}/externs.h +#itos.o: ${BUILD_DIR}/version.h + +makepath.o: ${topdir}/bashansi.h ${BASHINCDIR}/ansi_stdlib.h +makepath.o: ${topdir}/shell.h ${topdir}/syntax.h ${topdir}/bashjmp.h ${BASHINCDIR}/posixjmp.h +makepath.o: ${topdir}/command.h ${BASHINCDIR}/stdc.h ${topdir}/error.h +makepath.o: ${topdir}/general.h ${topdir}/bashtypes.h ${topdir}/variables.h ${topdir}/conftypes.h +makepath.o: ${topdir}/array.h ${topdir}/hashlib.h ${topdir}/quit.h +makepath.o: ${topdir}/unwind_prot.h ${topdir}/dispose_cmd.h +makepath.o: ${topdir}/make_cmd.h ${topdir}/subst.h ${topdir}/sig.h +makepath.o: ${BUILD_DIR}/pathnames.h ${topdir}/externs.h +#makepath.o: ${BUILD_DIR}/version.h + +netconn.o: ${BASHINCDIR}/posixstat.h ${BASHINCDIR}/filecntl.h +netconn.o: ${topdir}/bashtypes.h + +netopen.o: ${topdir}/bashansi.h ${BASHINCDIR}/ansi_stdlib.h ${topdir}/xmalloc.h +netopen.o: ${topdir}/shell.h ${topdir}/syntax.h ${topdir}/bashjmp.h ${BASHINCDIR}/posixjmp.h +netopen.o: ${topdir}/command.h ${BASHINCDIR}/stdc.h ${topdir}/error.h +netopen.o: ${topdir}/general.h ${topdir}/bashtypes.h ${topdir}/variables.h ${topdir}/conftypes.h +netopen.o: ${topdir}/array.h ${topdir}/hashlib.h ${topdir}/quit.h +netopen.o: ${topdir}/unwind_prot.h ${topdir}/dispose_cmd.h +netopen.o: ${topdir}/make_cmd.h ${topdir}/subst.h ${topdir}/sig.h +netopen.o: ${BUILD_DIR}/pathnames.h ${topdir}/externs.h +netopen.o: ${topdir}/bashintl.h ${LIBINTL_H} $(BASHINCDIR)/gettext.h +#netopen.o: ${BUILD_DIR}/version.h + +oslib.o: ${topdir}/bashtypes.h ${topdir}/bashansi.h ${BASHINCDIR}/maxpath.h +oslib.o: ${topdir}/shell.h ${topdir}/syntax.h ${topdir}/bashjmp.h ${BASHINCDIR}/posixjmp.h +oslib.o: ${topdir}/command.h ${BASHINCDIR}/stdc.h ${topdir}/error.h +oslib.o: ${topdir}/general.h ${topdir}/bashtypes.h ${topdir}/variables.h ${topdir}/conftypes.h +oslib.o: ${topdir}/array.h ${topdir}/hashlib.h ${topdir}/quit.h +oslib.o: ${topdir}/unwind_prot.h ${topdir}/dispose_cmd.h +oslib.o: ${topdir}/make_cmd.h ${topdir}/subst.h ${topdir}/sig.h +oslib.o: ${BUILD_DIR}/pathnames.h ${topdir}/externs.h +oslib.o: ${BASHINCDIR}/posixstat.h ${BASHINCDIR}/filecntl.h +oslib.o: ${BASHINCDIR}/ansi_stdlib.h ${BASHINCDIR}/chartypes.h +#oslib.o: ${BUILD_DIR}/version.h + +pathcanon.o: ${topdir}/bashtypes.h ${topdir}/bashansi.h ${BASHINCDIR}/maxpath.h +pathcanon.o: ${topdir}/shell.h ${topdir}/syntax.h ${topdir}/bashjmp.h ${BASHINCDIR}/posixjmp.h +pathcanon.o: ${topdir}/command.h ${BASHINCDIR}/stdc.h ${topdir}/error.h +pathcanon.o: ${topdir}/general.h ${topdir}/bashtypes.h ${topdir}/variables.h ${topdir}/conftypes.h +pathcanon.o: ${topdir}/array.h ${topdir}/hashlib.h ${topdir}/quit.h +pathcanon.o: ${topdir}/unwind_prot.h ${topdir}/dispose_cmd.h +pathcanon.o: ${topdir}/make_cmd.h ${topdir}/subst.h ${topdir}/sig.h +pathcanon.o: ${BUILD_DIR}/pathnames.h ${topdir}/externs.h +pathcanon.o: ${BASHINCDIR}/posixstat.h ${BASHINCDIR}/filecntl.h +pathcanon.o: ${BASHINCDIR}/ansi_stdlib.h ${BASHINCDIR}/chartypes.h +#pathcanon.o: ${BUILD_DIR}/version.h + +pathphys.o: ${topdir}/bashtypes.h ${topdir}/bashansi.h ${BASHINCDIR}/maxpath.h +pathphys.o: ${topdir}/shell.h ${topdir}/syntax.h ${topdir}/bashjmp.h ${BASHINCDIR}/posixjmp.h +pathphys.o: ${topdir}/command.h ${BASHINCDIR}/stdc.h ${topdir}/error.h +pathphys.o: ${topdir}/general.h ${topdir}/bashtypes.h ${topdir}/variables.h ${topdir}/conftypes.h +pathphys.o: ${topdir}/array.h ${topdir}/hashlib.h ${topdir}/quit.h +pathphys.o: ${topdir}/unwind_prot.h ${topdir}/dispose_cmd.h +pathphys.o: ${topdir}/make_cmd.h ${topdir}/subst.h ${topdir}/sig.h +pathphys.o: ${BUILD_DIR}/pathnames.h ${topdir}/externs.h +pathphys.o: ${BASHINCDIR}/posixstat.h ${BASHINCDIR}/filecntl.h +pathphys.o: ${BASHINCDIR}/ansi_stdlib.h ${BASHINCDIR}/chartypes.h +#pathphys.o: ${BUILD_DIR}/version.h + +random.o: ${topdir}/bashtypes.h ${BASHINCDIR}/stdc.h +random.o: ${topdir}/bashansi.h ${BASHINCDIR}/ansi_stdlib.h +random.o: ${BASHINCDIR}/filecntl.h + +rename.o: ${topdir}/bashtypes.h ${BASHINCDIR}/stdc.h +rename.o: ${BASHINCDIR}/posixstat.h + +setlinebuf.o: ${topdir}/xmalloc.h ${topdir}/bashansi.h +setlinebuf.o: ${BASHINCDIR}/ansi_stdlib.h ${BASHINCDIR}/stdc.h + +eaccess.o: ${topdir}/bashtypes.h +eaccess.o: ${BASHINCDIR}/posixstat.h +eaccess.o: ${topdir}/bashansi.h ${BASHINCDIR}/ansi_stdlib.h +eaccess.o: ${BASHINCDIR}/filecntl.h +eaccess.o: ${BASHINCDIR}/stdc.h +eaccess.o: ${topdir}/shell.h ${topdir}/syntax.h ${topdir}/bashjmp.h ${BASHINCDIR}/posixjmp.h +eaccess.o: ${topdir}/command.h ${BASHINCDIR}/stdc.h ${topdir}/error.h +eaccess.o: ${topdir}/general.h ${topdir}/bashtypes.h ${topdir}/variables.h ${topdir}/conftypes.h +eaccess.o: ${topdir}/array.h ${topdir}/hashlib.h ${topdir}/quit.h +eaccess.o: ${topdir}/unwind_prot.h ${topdir}/dispose_cmd.h +eaccess.o: ${topdir}/make_cmd.h ${topdir}/subst.h ${topdir}/sig.h +eaccess.o: ${BUILD_DIR}/pathnames.h ${topdir}/externs.h +#eaccess.o: ${BUILD_DIR}/version.h + +shmatch.o: ${BASHINCDIR}/stdc.h ${topdir}/bashansi.h +shmatch.o: ${BASHINCDIR}/ansi_stdlib.h ${topdir}/xmalloc.h +shmatch.o: ${topdir}/shell.h ${topdir}/syntax.h ${topdir}/bashjmp.h ${BASHINCDIR}/posixjmp.h +shmatch.o: ${topdir}/command.h ${BASHINCDIR}/stdc.h ${topdir}/error.h +shmatch.o: ${topdir}/general.h ${topdir}/bashtypes.h ${topdir}/variables.h ${topdir}/conftypes.h +shmatch.o: ${topdir}/array.h ${topdir}/hashlib.h ${topdir}/quit.h +shmatch.o: ${topdir}/unwind_prot.h ${topdir}/dispose_cmd.h +shmatch.o: ${topdir}/make_cmd.h ${topdir}/subst.h ${topdir}/sig.h +shmatch.o: ${BUILD_DIR}/pathnames.h ${topdir}/externs.h + +shquote.o: ${BASHINCDIR}/stdc.h ${topdir}/bashansi.h +shquote.o: ${BASHINCDIR}/ansi_stdlib.h ${topdir}/xmalloc.h +shquote.o: ${BASHINCDIR}/shmbutil.h ${BASHINCDIR}/shmbchar.h + +shtty.o: ${BASHINCDIR}/shtty.h +shtty.o: ${BASHINCDIR}/stdc.h + +snprintf.o: ${BASHINCDIR}/stdc.h ${topdir}/bashansi.h ${topdir}/xmalloc.h +snprintf.o: ${BASHINCDIR}/ansi_stdlib.h ${BASHINCDIR}/chartypes.h +snprintf.o: ${BASHINCDIR}/shmbutil.h ${BASHINCDIR}/shmbchar.h +snprintf.o: ${BASHINCDIR}/typemax.h + +spell.o: ${topdir}/bashtypes.h +spell.o: ${BASHINCDIR}/posixstat.h ${BASHINCDIR}/posixdir.h +spell.o: ${BASHINCDIR}/ansi_stdlib.h + +strcasecmp.o: ${BASHINCDIR}/stdc.h ${topdir}/bashansi.h +strcasecmp.o: ${BASHINCDIR}/ansi_stdlib.h ${BASHINCDIR}/chartypes.h + +strerror.o: ${topdir}/bashtypes.h +strerror.o: ${topdir}/shell.h ${topdir}/syntax.h ${topdir}/bashjmp.h ${BASHINCDIR}/posixjmp.h +strerror.o: ${topdir}/command.h ${BASHINCDIR}/stdc.h ${topdir}/error.h +strerror.o: ${topdir}/general.h ${topdir}/bashtypes.h ${topdir}/variables.h ${topdir}/conftypes.h +strerror.o: ${topdir}/array.h ${topdir}/hashlib.h ${topdir}/quit.h +strerror.o: ${topdir}/unwind_prot.h ${topdir}/dispose_cmd.h +strerror.o: ${topdir}/make_cmd.h ${topdir}/subst.h ${topdir}/sig.h +strerror.o: ${BUILD_DIR}/pathnames.h ${topdir}/externs.h +#strerror.o: ${BUILD_DIR}/version.h + +strcasestr.o: ${BASHINCDIR}/stdc.h ${topdir}/bashansi.h +strcasestr.o: ${BASHINCDIR}/ansi_stdlib.h ${BASHINCDIR}/chartypes.h + +stringlist.o: ${topdir}/bashansi.h +stringlist.o: ${topdir}/shell.h ${topdir}/syntax.h ${topdir}/bashjmp.h ${BASHINCDIR}/posixjmp.h +stringlist.o: ${topdir}/command.h ${BASHINCDIR}/stdc.h ${topdir}/error.h +stringlist.o: ${topdir}/general.h ${topdir}/bashtypes.h ${topdir}/variables.h ${topdir}/conftypes.h +stringlist.o: ${topdir}/array.h ${topdir}/hashlib.h ${topdir}/quit.h +stringlist.o: ${topdir}/unwind_prot.h ${topdir}/dispose_cmd.h +stringlist.o: ${topdir}/make_cmd.h ${topdir}/subst.h ${topdir}/sig.h +stringlist.o: ${BUILD_DIR}/pathnames.h ${topdir}/externs.h +#stringlist.o: ${BUILD_DIR}/version.h + +stringvec.o: ${topdir}/bashansi.h ${BASHINCDIR}/chartypes.h +stringvec.o: ${topdir}/shell.h ${topdir}/syntax.h ${topdir}/bashjmp.h ${BASHINCDIR}/posixjmp.h +stringvec.o: ${topdir}/command.h ${BASHINCDIR}/stdc.h ${topdir}/error.h +stringvec.o: ${topdir}/general.h ${topdir}/bashtypes.h ${topdir}/variables.h ${topdir}/conftypes.h +stringvec.o: ${topdir}/array.h ${topdir}/hashlib.h ${topdir}/quit.h +stringvec.o: ${topdir}/unwind_prot.h ${topdir}/dispose_cmd.h +stringvec.o: ${topdir}/make_cmd.h ${topdir}/subst.h ${topdir}/sig.h +stringvec.o: ${BUILD_DIR}/pathnames.h ${topdir}/externs.h +#stringvec.o: ${BUILD_DIR}/version.h + +strnlen.o: ${BASHINCDIR}/stdc.h + +strpbrk.o: ${BASHINCDIR}/stdc.h + +strtod.o: ${topdir}/bashansi.h +strtod.o: ${BASHINCDIR}/ansi_stdlib.h ${BASHINCDIR}/chartypes.h + +strtoimax.o: ${BASHINCDIR}/stdc.h + +strtol.o: ${topdir}/bashansi.h +strtol.o: ${BASHINCDIR}/ansi_stdlib.h ${BASHINCDIR}/chartypes.h +strtol.o: ${BASHINCDIR}/typemax.h + +strtoll.o: ${topdir}/bashansi.h +strtoll.o: ${BASHINCDIR}/ansi_stdlib.h ${BASHINCDIR}/chartypes.h +strtoll.o: ${BASHINCDIR}/typemax.h + +strtoul.o: ${topdir}/bashansi.h +strtoul.o: ${BASHINCDIR}/ansi_stdlib.h ${BASHINCDIR}/chartypes.h +strtoul.o: ${BASHINCDIR}/typemax.h + +strtoull.o: ${topdir}/bashansi.h +strtoull.o: ${BASHINCDIR}/ansi_stdlib.h ${BASHINCDIR}/chartypes.h +strtoull.o: ${BASHINCDIR}/typemax.h + +strtoumax.o: ${BASHINCDIR}/stdc.h + +strtrans.o: ${topdir}/bashansi.h +strtrans.o: ${BASHINCDIR}/ansi_stdlib.h ${BASHINCDIR}/chartypes.h +strtrans.o: ${topdir}/shell.h ${topdir}/syntax.h ${topdir}/bashjmp.h ${BASHINCDIR}/posixjmp.h +strtrans.o: ${topdir}/command.h ${BASHINCDIR}/stdc.h ${topdir}/error.h +strtrans.o: ${topdir}/general.h ${topdir}/bashtypes.h ${topdir}/variables.h ${topdir}/conftypes.h +strtrans.o: ${topdir}/array.h ${topdir}/hashlib.h ${topdir}/quit.h +strtrans.o: ${topdir}/unwind_prot.h ${topdir}/dispose_cmd.h +strtrans.o: ${topdir}/make_cmd.h ${topdir}/subst.h ${topdir}/sig.h +strtrans.o: ${BUILD_DIR}/pathnames.h ${topdir}/externs.h +strtrans.o: ${BASHINCDIR}/shmbutil.h ${BASHINCDIR}/shmbchar.h +#strtrans.o: ${BUILD_DIR}/version.h + +times.o: ${BASHINCDIR}/systimes.h +times.o: ${BASHINCDIR}/posixtime.h + +timeval.o: ${BASHINCDIR}/posixtime.h +gettimeofday.o: ${BASHINCDIR}/posixtime.h + +tmpfile.o: ${topdir}/bashtypes.h +tmpfile.o: ${BASHINCDIR}/chartypes.h +tmpfile.o: ${BASHINCDIR}/posixstat.h +tmpfile.o: ${BASHINCDIR}/filecntl.h +tmpfile.o: ${topdir}/shell.h ${topdir}/syntax.h ${topdir}/bashjmp.h ${BASHINCDIR}/posixjmp.h +tmpfile.o: ${topdir}/command.h ${BASHINCDIR}/stdc.h ${topdir}/error.h +tmpfile.o: ${topdir}/general.h ${topdir}/bashtypes.h ${topdir}/variables.h ${topdir}/conftypes.h +tmpfile.o: ${topdir}/array.h ${topdir}/hashlib.h ${topdir}/quit.h +tmpfile.o: ${topdir}/unwind_prot.h ${topdir}/dispose_cmd.h +tmpfile.o: ${topdir}/make_cmd.h ${topdir}/subst.h ${topdir}/sig.h +tmpfile.o: ${BUILD_DIR}/pathnames.h ${topdir}/externs.h + +uconvert.o: ${topdir}/bashtypes.h +uconvert.o: ${BASHINCDIR}/chartypes.h +uconvert.o: ${topdir}/shell.h ${topdir}/syntax.h ${topdir}/bashjmp.h ${BASHINCDIR}/posixjmp.h +uconvert.o: ${topdir}/command.h ${BASHINCDIR}/stdc.h ${topdir}/error.h +uconvert.o: ${topdir}/general.h ${topdir}/bashtypes.h ${topdir}/variables.h ${topdir}/conftypes.h +uconvert.o: ${topdir}/array.h ${topdir}/hashlib.h ${topdir}/quit.h +uconvert.o: ${topdir}/unwind_prot.h ${topdir}/dispose_cmd.h +uconvert.o: ${topdir}/make_cmd.h ${topdir}/subst.h ${topdir}/sig.h +uconvert.o: ${BUILD_DIR}/pathnames.h ${topdir}/externs.h + +ufuncs.o: ${topdir}/bashtypes.h + +clock.o: ${BASHINCDIR}/posixtime.h + +mailstat.o: ${topdir}/bashansi.h +mailstat.o: ${topdir}/bashtypes.h +mailstat.o: ${BASHINCDIR}/ansi_stdlib.h +mailstat.o: ${BASHINCDIR}/posixstat.h +mailstat.o: ${BASHINCDIR}/posixdir.h +mailstat.o: ${BASHINCDIR}/maxpath.h + +fmtulong.o: ${topdir}/bashansi.h +fmtulong.o: ${BASHINCDIR}/ansi_stdlib.h +fmtulong.o: ${BASHINCDIR}/chartypes.h +fmtulong.o: ${BASHINCDIR}/stdc.h +fmtulong.o: ${BASHINCDIR}/typemax.h +fmtulong.o: ${topdir}/bashintl.h ${LIBINTL_H} ${BASHINCDIR}/gettext.h + +fmtullong.o: ${topdir}/bashansi.h +fmtullong.o: ${BASHINCDIR}/ansi_stdlib.h +fmtullong.o: ${BASHINCDIR}/chartypes.h +fmtullong.o: ${BASHINCDIR}/stdc.h +fmtullong.o: ${BASHINCDIR}/typemax.h +fmtullong.o: ${topdir}/bashintl.h ${LIBINTL_H} ${BASHINCDIR}/gettext.h + +fmtumax.o: ${topdir}/bashansi.h +fmtumax.o: ${BASHINCDIR}/ansi_stdlib.h +fmtumax.o: ${BASHINCDIR}/chartypes.h +fmtumax.o: ${BASHINCDIR}/stdc.h +fmtumax.o: ${BASHINCDIR}/typemax.h +fmtumax.o: ${topdir}/bashintl.h ${LIBINTL_H} ${BASHINCDIR}/gettext.h + +wcsdup.o: ${topdir}/bashansi.h ${BASHINCDIR}/ansi_stdlib.h +wcsdup.o: ${BASHINCDIR}/stdc.h +wcsdup.o: ${topdir}/xmalloc.h + +wcsnwidth.o: ${topdir}/bashansi.h ${BASHINCDIR}/ansi_stdlib.h +wcsnwidth.o: ${BASHINCDIR}/stdc.h + +wcswidth.o: ${topdir}/bashansi.h ${BASHINCDIR}/ansi_stdlib.h +wcswidth.o: ${BASHINCDIR}/stdc.h + +mbschr.o: ${topdir}/bashansi.h +mbschr.o: ${BASHINCDIR}/ansi_stdlib.h +mbschr.o: ${BASHINCDIR}/shmbutil.h ${BASHINCDIR}/shmbchar.h + +zgetline.o: ${topdir}/bashansi.h ${BASHINCDIR}/ansi_stdlib.h +zgetline.o: ${BASHINCDIR}/stdc.h +zgetline.o: ${topdir}/xmalloc.h +zgetline.o: ${topdir}/bashtypes.h + +mbscasecmp.o: ${topdir}/bashansi.h ${BASHINCDIR}/ansi_stdlib.h +mbscasecmp.o: ${BASHINCDIR}/stdc.h +mbscasecmp.o: ${topdir}/xmalloc.h + +mbscmp.o: ${topdir}/bashansi.h ${BASHINCDIR}/ansi_stdlib.h +mbscmp.o: ${BASHINCDIR}/stdc.h +mbscmp.o: ${topdir}/xmalloc.h + +casemod.o: ${topdir}/bashansi.h ${BASHINCDIR}/ansi_stdlib.h +casemod.o: ${BASHINCDIR}/stdc.h +casemod.o: ${topdir}/xmalloc.h +casemod.o: ${topdir}/bashtypes.h +casemod.o: ${BASHINCDIR}/shmbutil.h ${BASHINCDIR}/shmbchar.h +casemod.o: ${topdir}/bashintl.h ${LIBINTL_H} ${BASHINCDIR}/gettext.h + +dprintf.o: ${BASHINCDIR}/stdc.h + +input_avail.o: ${topdir}/bashansi.h ${BASHINCDIR}/ansi_stdlib.h +input_avail.o: ${BASHINCDIR}/stdc.h +input_avail.o: ${topdir}/xmalloc.h ${BASHINCDIR}/posixselect.h + +mktime.o: ${topdir}/bashansi.h ${BASHINCDIR}/ansi_stdlib.h +mktime.o: ${BASHINCDIR}/stdc.h + +fnxform.o: ${topdir}/bashansi.h ${BASHINCDIR}/ansi_stdlib.h +fnxform.o: ${BASHINCDIR}/stdc.h +fnxform.o: ${topdir}/bashtypes.h +fnxform.o: ${topdir}/bashintl.h ${LIBINTL_H} ${BASHINCDIR}/gettext.h + +shmbchar.o: ${BASHINCDIR}/shmbchar.h +shmbchar.o: ${BASHINCDIR}/shmbutil.h + +unicode.o: ${topdir}/bashansi.h ${BASHINCDIR}/ansi_stdlib.h +unicode.o: ${BASHINCDIR}/stdc.h +unicode.o: ${topdir}/xmalloc.h + +utf8.o: ${topdir}/bashansi.h +utf8.o: ${BASHINCDIR}/ansi_stdlib.h +utf8.o: ${BASHINCDIR}/shmbutil.h ${BASHINCDIR}/shmbchar.h + +winsize.o: ${BASHINCDIR}/stdc.h +winsize.o: ${topdir}/xmalloc.h +winsize.o: ${topdir}/bashtypes.h + +zmapfd.o: ${topdir}/bashansi.h ${BASHINCDIR}/ansi_stdlib.h +zmapfd.o: ${BASHINCDIR}/stdc.h +zmapfd.o: ${topdir}/command.h +zmapfd.o: ${topdir}/general.h +zmapfd.o: ${topdir}/bashtypes.h ${BASHINCDIR}/chartypes.h ${topdir}/xmalloc.h diff --git a/lib/sh/casemod.c b/lib/sh/casemod.c new file mode 100644 index 0000000..bdd96f8 --- /dev/null +++ b/lib/sh/casemod.c @@ -0,0 +1,273 @@ +/* casemod.c -- functions to change case of strings */ + +/* Copyright (C) 2008-2020 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#if defined (HAVE_CONFIG_H) +# include <config.h> +#endif + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif /* HAVE_UNISTD_H */ + +#include <stdc.h> + +#include <bashansi.h> +#include <bashintl.h> +#include <bashtypes.h> + +#include <stdio.h> +#include <ctype.h> +#include <xmalloc.h> + +#include <shmbchar.h> +#include <shmbutil.h> +#include <chartypes.h> +#include <typemax.h> + +#include <glob/strmatch.h> + +#define _to_wupper(wc) (iswlower (wc) ? towupper (wc) : (wc)) +#define _to_wlower(wc) (iswupper (wc) ? towlower (wc) : (wc)) + +#if !defined (HANDLE_MULTIBYTE) +# define cval(s, i) ((s)[(i)]) +# define iswalnum(c) (isalnum(c)) +# define TOGGLE(x) (ISUPPER (x) ? tolower ((unsigned char)x) : (TOUPPER (x))) +#else +# define TOGGLE(x) (iswupper (x) ? towlower (x) : (_to_wupper(x))) +#endif + +/* These must agree with the defines in externs.h */ +#define CASE_NOOP 0x0000 +#define CASE_LOWER 0x0001 +#define CASE_UPPER 0x0002 +#define CASE_CAPITALIZE 0x0004 +#define CASE_UNCAP 0x0008 +#define CASE_TOGGLE 0x0010 +#define CASE_TOGGLEALL 0x0020 +#define CASE_UPFIRST 0x0040 +#define CASE_LOWFIRST 0x0080 + +#define CASE_USEWORDS 0x1000 /* modify behavior to act on words in passed string */ + +extern char *substring PARAMS((char *, int, int)); + +#ifndef UCHAR_MAX +# define UCHAR_MAX TYPE_MAXIMUM(unsigned char) +#endif + +#if defined (HANDLE_MULTIBYTE) +static wchar_t +cval (s, i) + char *s; + int i; +{ + size_t tmp; + wchar_t wc; + int l; + mbstate_t mps; + + if (MB_CUR_MAX == 1 || is_basic (s[i])) + return ((wchar_t)s[i]); + l = strlen (s); + if (i >= (l - 1)) + return ((wchar_t)s[i]); + memset (&mps, 0, sizeof (mbstate_t)); + tmp = mbrtowc (&wc, s + i, l - i, &mps); + if (MB_INVALIDCH (tmp) || MB_NULLWCH (tmp)) + return ((wchar_t)s[i]); + return wc; +} +#endif + +/* Modify the case of characters in STRING matching PAT based on the value of + FLAGS. If PAT is null, modify the case of each character */ +char * +sh_modcase (string, pat, flags) + const char *string; + char *pat; + int flags; +{ + int start, next, end, retind; + int inword, c, nc, nop, match, usewords; + char *ret, *s; + wchar_t wc; + int mb_cur_max; +#if defined (HANDLE_MULTIBYTE) + wchar_t nwc; + char mb[MB_LEN_MAX+1]; + int mlen; + size_t m; + mbstate_t state; +#endif + + if (string == 0 || *string == 0) + { + ret = (char *)xmalloc (1); + ret[0] = '\0'; + return ret; + } + +#if defined (HANDLE_MULTIBYTE) + memset (&state, 0, sizeof (mbstate_t)); +#endif + + start = 0; + end = strlen (string); + mb_cur_max = MB_CUR_MAX; + + ret = (char *)xmalloc (2*end + 1); + retind = 0; + + /* See if we are supposed to split on alphanumerics and operate on each word */ + usewords = (flags & CASE_USEWORDS); + flags &= ~CASE_USEWORDS; + + inword = 0; + while (start < end) + { + wc = cval ((char *)string, start); + + if (iswalnum (wc) == 0) + inword = 0; + + if (pat) + { + next = start; + ADVANCE_CHAR (string, end, next); + s = substring ((char *)string, start, next); + match = strmatch (pat, s, FNM_EXTMATCH) != FNM_NOMATCH; + free (s); + if (match == 0) + { + /* copy unmatched portion */ + memcpy (ret + retind, string + start, next - start); + retind += next - start; + start = next; + inword = 1; + continue; + } + } + + /* XXX - for now, the toggling operators work on the individual + words in the string, breaking on alphanumerics. Should I + leave the capitalization operators to do that also? */ + if (flags == CASE_CAPITALIZE) + { + if (usewords) + nop = inword ? CASE_LOWER : CASE_UPPER; + else + nop = (start > 0) ? CASE_LOWER : CASE_UPPER; + inword = 1; + } + else if (flags == CASE_UNCAP) + { + if (usewords) + nop = inword ? CASE_UPPER : CASE_LOWER; + else + nop = (start > 0) ? CASE_UPPER : CASE_LOWER; + inword = 1; + } + else if (flags == CASE_UPFIRST) + { + if (usewords) + nop = inword ? CASE_NOOP : CASE_UPPER; + else + nop = (start > 0) ? CASE_NOOP : CASE_UPPER; + inword = 1; + } + else if (flags == CASE_LOWFIRST) + { + if (usewords) + nop = inword ? CASE_NOOP : CASE_LOWER; + else + nop = (start > 0) ? CASE_NOOP : CASE_LOWER; + inword = 1; + } + else if (flags == CASE_TOGGLE) + { + nop = inword ? CASE_NOOP : CASE_TOGGLE; + inword = 1; + } + else + nop = flags; + + /* Can't short-circuit, some locales have multibyte upper and lower + case equivalents of single-byte ascii characters (e.g., Turkish) */ + if (mb_cur_max == 1) + { +singlebyte: + switch (nop) + { + default: + case CASE_NOOP: nc = wc; break; + case CASE_UPPER: nc = TOUPPER (wc); break; + case CASE_LOWER: nc = TOLOWER (wc); break; + case CASE_TOGGLEALL: + case CASE_TOGGLE: nc = TOGGLE (wc); break; + } + ret[retind++] = nc; + } +#if defined (HANDLE_MULTIBYTE) + else + { + m = mbrtowc (&wc, string + start, end - start, &state); + /* Have to go through wide case conversion even for single-byte + chars, to accommodate single-byte characters where the + corresponding upper or lower case equivalent is multibyte. */ + if (MB_INVALIDCH (m)) + { + wc = (unsigned char)string[start]; + goto singlebyte; + } + else if (MB_NULLWCH (m)) + wc = L'\0'; + switch (nop) + { + default: + case CASE_NOOP: nwc = wc; break; + case CASE_UPPER: nwc = _to_wupper (wc); break; + case CASE_LOWER: nwc = _to_wlower (wc); break; + case CASE_TOGGLEALL: + case CASE_TOGGLE: nwc = TOGGLE (wc); break; + } + + /* We don't have to convert `wide' characters that are in the + unsigned char range back to single-byte `multibyte' characters. */ + if ((int)nwc <= UCHAR_MAX && is_basic ((int)nwc)) + ret[retind++] = nwc; + else + { + mlen = wcrtomb (mb, nwc, &state); + if (mlen > 0) + mb[mlen] = '\0'; + /* Don't assume the same width */ + strncpy (ret + retind, mb, mlen); + retind += mlen; + } + } +#endif + + ADVANCE_CHAR (string, end, start); + } + + ret[retind] = '\0'; + return ret; +} diff --git a/lib/sh/clktck.c b/lib/sh/clktck.c new file mode 100644 index 0000000..8b9b5b3 --- /dev/null +++ b/lib/sh/clktck.c @@ -0,0 +1,61 @@ +/* clktck.c - get the value of CLK_TCK. */ + +/* Copyright (C) 1997 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#include <bashtypes.h> +#if defined (HAVE_SYS_PARAM_H) +# include <sys/param.h> +#endif + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +#if defined (HAVE_LIMITS_H) +# include <limits.h> +#endif + +#if !defined (HAVE_SYSCONF) || !defined (_SC_CLK_TCK) +# if !defined (CLK_TCK) +# if defined (HZ) +# define CLK_TCK HZ +# else +# define CLK_TCK 60 +# endif +# endif /* !CLK_TCK */ +#endif /* !HAVE_SYSCONF && !_SC_CLK_TCK */ + +long +get_clk_tck () +{ + static long retval = 0; + + if (retval != 0) + return (retval); + +#if defined (HAVE_SYSCONF) && defined (_SC_CLK_TCK) + retval = sysconf (_SC_CLK_TCK); +#else /* !SYSCONF || !_SC_CLK_TCK */ + retval = CLK_TCK; +#endif /* !SYSCONF || !_SC_CLK_TCK */ + + return (retval); +} diff --git a/lib/sh/clock.c b/lib/sh/clock.c new file mode 100644 index 0000000..c6c52bf --- /dev/null +++ b/lib/sh/clock.c @@ -0,0 +1,87 @@ +/* clock.c - operations on struct tms and clock_t's */ + +/* Copyright (C) 1999 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#if defined (HAVE_TIMES) + +#include <sys/types.h> +#include <posixtime.h> + +#if defined (HAVE_SYS_TIMES_H) +# include <sys/times.h> +#endif + +#include <stdio.h> +#include <stdc.h> + +#include <bashintl.h> + +#ifndef locale_decpoint +extern int locale_decpoint PARAMS((void)); +#endif + +extern long get_clk_tck PARAMS((void)); + +void +clock_t_to_secs (t, sp, sfp) + clock_t t; + time_t *sp; + int *sfp; +{ + static long clk_tck = -1; + + if (clk_tck == -1) + clk_tck = get_clk_tck (); + + *sfp = t % clk_tck; + *sfp = (*sfp * 1000) / clk_tck; + + *sp = t / clk_tck; + + /* Sanity check */ + if (*sfp >= 1000) + { + *sp += 1; + *sfp -= 1000; + } +} + +/* Print the time defined by a clock_t (returned by the `times' and `time' + system calls) in a standard way to stdio stream FP. This is scaled in + terms of the value of CLK_TCK, which is what is returned by the + `times' call. */ +void +print_clock_t (fp, t) + FILE *fp; + clock_t t; +{ + time_t timestamp; + long minutes; + int seconds, seconds_fraction; + + clock_t_to_secs (t, ×tamp, &seconds_fraction); + + minutes = timestamp / 60; + seconds = timestamp % 60; + + fprintf (fp, "%ldm%d%c%03ds", minutes, seconds, locale_decpoint(), seconds_fraction); +} +#endif /* HAVE_TIMES */ diff --git a/lib/sh/dprintf.c b/lib/sh/dprintf.c new file mode 100644 index 0000000..b3b5d64 --- /dev/null +++ b/lib/sh/dprintf.c @@ -0,0 +1,70 @@ +/* dprintf -- printf to a file descriptor */ + +/* Copyright (C) 2008-2010 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#include <stdc.h> + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +#if defined (PREFER_STDARG) +# include <stdarg.h> +#else +# include <varargs.h> +#endif + +#include <stdio.h> + +int +#if defined (PREFER_STDARG) +dprintf(int fd, const char *format, ...) +#else +dprintf(fd, format, va_alist) + int fd; + const char *format; + va_dcl +#endif +{ + FILE *fp; + int fd2, rc, r2; + va_list args; + + if ((fd2 = dup(fd)) < 0) + return -1; + fp = fdopen (fd2, "w"); + if (fp == 0) + { + close (fd2); + return -1; + } + + SH_VA_START (args, format); + rc = vfprintf (fp, format, args); + fflush (fp); + va_end (args); + + r2 = fclose (fp); /* check here */ + + return rc; +} diff --git a/lib/sh/eaccess.c b/lib/sh/eaccess.c new file mode 100644 index 0000000..c3043ec --- /dev/null +++ b/lib/sh/eaccess.c @@ -0,0 +1,244 @@ +/* eaccess.c - eaccess replacement for the shell, plus other access functions. */ + +/* Copyright (C) 2006-2020 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#if defined (HAVE_CONFIG_H) +# include <config.h> +#endif + +#include <stdio.h> + +#include "bashtypes.h" + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +#include "bashansi.h" + +#include <errno.h> +#if !defined (errno) +extern int errno; +#endif /* !errno */ + +#if !defined (_POSIX_VERSION) && defined (HAVE_SYS_FILE_H) +# include <sys/file.h> +#endif /* !_POSIX_VERSION */ +#include "posixstat.h" +#include "filecntl.h" + +#include "shell.h" + +#if !defined (R_OK) +#define R_OK 4 +#define W_OK 2 +#define X_OK 1 +#define F_OK 0 +#endif /* R_OK */ + +static int path_is_devfd PARAMS((const char *)); +static int sh_stataccess PARAMS((const char *, int)); +#if HAVE_DECL_SETREGID +static int sh_euidaccess PARAMS((const char *, int)); +#endif + +static int +path_is_devfd (path) + const char *path; +{ + if (path[0] == '/' && path[1] == 'd' && strncmp (path, "/dev/fd/", 8) == 0) + return 1; + else if (STREQN (path, "/dev/std", 8)) + { + if (STREQ (path+8, "in") || STREQ (path+8, "out") || STREQ (path+8, "err")) + return 1; + else + return 0; + } + else + return 0; +} + +/* A wrapper for stat () which disallows pathnames that are empty strings + and handles /dev/fd emulation on systems that don't have it. */ +int +sh_stat (path, finfo) + const char *path; + struct stat *finfo; +{ + static char *pbuf = 0; + + if (*path == '\0') + { + errno = ENOENT; + return (-1); + } + if (path[0] == '/' && path[1] == 'd' && strncmp (path, "/dev/fd/", 8) == 0) + { + /* If stating /dev/fd/n doesn't produce the same results as fstat of + FD N, then define DEV_FD_STAT_BROKEN */ +#if !defined (HAVE_DEV_FD) || defined (DEV_FD_STAT_BROKEN) + intmax_t fd; + int r; + + if (legal_number (path + 8, &fd) && fd == (int)fd) + { + r = fstat ((int)fd, finfo); + if (r == 0 || errno != EBADF) + return (r); + } + errno = ENOENT; + return (-1); +#else + /* If HAVE_DEV_FD is defined, DEV_FD_PREFIX is defined also, and has a + trailing slash. Make sure /dev/fd/xx really uses DEV_FD_PREFIX/xx. + On most systems, with the notable exception of linux, this is + effectively a no-op. */ + pbuf = xrealloc (pbuf, sizeof (DEV_FD_PREFIX) + strlen (path + 8)); + strcpy (pbuf, DEV_FD_PREFIX); + strcat (pbuf, path + 8); + return (stat (pbuf, finfo)); +#endif /* !HAVE_DEV_FD */ + } +#if !defined (HAVE_DEV_STDIN) + else if (STREQN (path, "/dev/std", 8)) + { + if (STREQ (path+8, "in")) + return (fstat (0, finfo)); + else if (STREQ (path+8, "out")) + return (fstat (1, finfo)); + else if (STREQ (path+8, "err")) + return (fstat (2, finfo)); + else + return (stat (path, finfo)); + } +#endif /* !HAVE_DEV_STDIN */ + return (stat (path, finfo)); +} + +/* Do the same thing access(2) does, but use the effective uid and gid, + and don't make the mistake of telling root that any file is + executable. This version uses stat(2). */ +static int +sh_stataccess (path, mode) + const char *path; + int mode; +{ + struct stat st; + + if (sh_stat (path, &st) < 0) + return (-1); + + if (current_user.euid == 0) + { + /* Root can read or write any file. */ + if ((mode & X_OK) == 0) + return (0); + + /* Root can execute any file that has any one of the execute + bits set. */ + if (st.st_mode & S_IXUGO) + return (0); + } + + if (st.st_uid == current_user.euid) /* owner */ + mode <<= 6; + else if (group_member (st.st_gid)) + mode <<= 3; + + if (st.st_mode & mode) + return (0); + + errno = EACCES; + return (-1); +} + +#if HAVE_DECL_SETREGID +/* Version to call when uid != euid or gid != egid. We temporarily swap + the effective and real uid and gid as appropriate. */ +static int +sh_euidaccess (path, mode) + const char *path; + int mode; +{ + int r, e; + + if (current_user.uid != current_user.euid) + setreuid (current_user.euid, current_user.uid); + if (current_user.gid != current_user.egid) + setregid (current_user.egid, current_user.gid); + + r = access (path, mode); + e = errno; + + if (current_user.uid != current_user.euid) + setreuid (current_user.uid, current_user.euid); + if (current_user.gid != current_user.egid) + setregid (current_user.gid, current_user.egid); + + errno = e; + return r; +} +#endif + +int +sh_eaccess (path, mode) + const char *path; + int mode; +{ + int ret; + + if (path_is_devfd (path)) + return (sh_stataccess (path, mode)); + +#if (defined (HAVE_FACCESSAT) && defined (AT_EACCESS)) || defined (HAVE_EACCESS) +# if defined (HAVE_FACCESSAT) && defined (AT_EACCESS) + ret = faccessat (AT_FDCWD, path, mode, AT_EACCESS); +# else /* HAVE_EACCESS */ /* FreeBSD */ + ret = eaccess (path, mode); /* XXX -- not always correct for X_OK */ +# endif /* HAVE_EACCESS */ +# if defined (__FreeBSD__) || defined (SOLARIS) || defined (_AIX) + if (ret == 0 && current_user.euid == 0 && mode == X_OK) + return (sh_stataccess (path, mode)); +# endif /* __FreeBSD__ || SOLARIS || _AIX */ + return ret; +#elif defined (EFF_ONLY_OK) /* SVR4(?), SVR4.2 */ + return access (path, mode|EFF_ONLY_OK); +#else + if (mode == F_OK) + return (sh_stataccess (path, mode)); + +# if HAVE_DECL_SETREGID + if (current_user.uid != current_user.euid || current_user.gid != current_user.egid) + return (sh_euidaccess (path, mode)); +# endif + + if (current_user.uid == current_user.euid && current_user.gid == current_user.egid) + { + ret = access (path, mode); +#if defined (__FreeBSD__) || defined (SOLARIS) + if (ret == 0 && current_user.euid == 0 && mode == X_OK) + return (sh_stataccess (path, mode)); +#endif + return ret; + } + + return (sh_stataccess (path, mode)); +#endif +} diff --git a/lib/sh/fmtullong.c b/lib/sh/fmtullong.c new file mode 100644 index 0000000..97a1dc1 --- /dev/null +++ b/lib/sh/fmtullong.c @@ -0,0 +1,31 @@ +/* fmtullong.c - convert `long long int' to string */ + +/* Copyright (C) 2001-2002 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#ifdef HAVE_LONG_LONG + +#define LONG long long +#define UNSIGNED_LONG unsigned long long +#define fmtulong fmtullong + +#include "fmtulong.c" + +#endif diff --git a/lib/sh/fmtulong.c b/lib/sh/fmtulong.c new file mode 100644 index 0000000..0ccc22b --- /dev/null +++ b/lib/sh/fmtulong.c @@ -0,0 +1,191 @@ +/* fmtulong.c -- Convert unsigned long int to string. */ + +/* Copyright (C) 1998-2011 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +#if defined (HAVE_LIMITS_H) +# include <limits.h> +#endif + +#include <bashansi.h> +#ifdef HAVE_STDDEF_H +# include <stddef.h> +#endif + +#ifdef HAVE_STDINT_H +# include <stdint.h> +#endif +#ifdef HAVE_INTTYPES_H +# include <inttypes.h> +#endif +#include <chartypes.h> +#include <errno.h> + +#include <bashintl.h> + +#include "stdc.h" + +#include <typemax.h> + +#ifndef errno +extern int errno; +#endif + +#define x_digs "0123456789abcdef" +#define X_digs "0123456789ABCDEF" + +/* XXX -- assumes uppercase letters, lowercase letters, and digits are + contiguous */ +#define FMTCHAR(x) \ + ((x) < 10) ? (x) + '0' \ + : (((x) < 36) ? (x) - 10 + 'a' \ + : (((x) < 62) ? (x) - 36 + 'A' \ + : (((x) == 62) ? '@' : '_'))) + +#ifndef FL_PREFIX +# define FL_PREFIX 0x01 /* add 0x, 0X, or 0 prefix as appropriate */ +# define FL_ADDBASE 0x02 /* add base# prefix to converted value */ +# define FL_HEXUPPER 0x04 /* use uppercase when converting to hex */ +# define FL_UNSIGNED 0x08 /* don't add any sign */ +#endif + +#ifndef LONG +# define LONG long +# define UNSIGNED_LONG unsigned long +#endif + +/* `unsigned long' (or unsigned long long) to string conversion for a given + base. The caller passes the output buffer and the size. This should + check for buffer underflow, but currently does not. */ +char * +fmtulong (ui, base, buf, len, flags) + UNSIGNED_LONG ui; + int base; + char *buf; + size_t len; + int flags; +{ + char *p; + int sign; + LONG si; + + if (base == 0) + base = 10; + + if (base < 2 || base > 64) + { +#if 1 + /* XXX - truncation possible with long translation */ + strncpy (buf, _("invalid base"), len - 1); + buf[len-1] = '\0'; + errno = EINVAL; + return (p = buf); +#else + base = 10; +#endif + } + + sign = 0; + if ((flags & FL_UNSIGNED) == 0 && (LONG)ui < 0) + { + ui = -ui; + sign = '-'; + } + + p = buf + len - 2; + p[1] = '\0'; + + /* handle common cases explicitly */ + switch (base) + { + case 10: + if (ui < 10) + { + *p-- = TOCHAR (ui); + break; + } + /* Favor signed arithmetic over unsigned arithmetic; it is faster on + many machines. */ + if ((LONG)ui < 0) + { + *p-- = TOCHAR (ui % 10); + si = ui / 10; + } + else + si = ui; + do + *p-- = TOCHAR (si % 10); + while (si /= 10); + break; + + case 8: + do + *p-- = TOCHAR (ui & 7); + while (ui >>= 3); + break; + + case 16: + do + *p-- = (flags & FL_HEXUPPER) ? X_digs[ui & 15] : x_digs[ui & 15]; + while (ui >>= 4); + break; + + case 2: + do + *p-- = TOCHAR (ui & 1); + while (ui >>= 1); + break; + + default: + do + *p-- = FMTCHAR (ui % base); + while (ui /= base); + break; + } + + if ((flags & FL_PREFIX) && (base == 8 || base == 16)) + { + if (base == 16) + { + *p-- = (flags & FL_HEXUPPER) ? 'X' : 'x'; + *p-- = '0'; + } + else if (p[1] != '0') + *p-- = '0'; + } + else if ((flags & FL_ADDBASE) && base != 10) + { + *p-- = '#'; + *p-- = TOCHAR (base % 10); + if (base > 10) + *p-- = TOCHAR (base / 10); + } + + if (sign) + *p-- = '-'; + + return (p + 1); +} diff --git a/lib/sh/fmtumax.c b/lib/sh/fmtumax.c new file mode 100644 index 0000000..f2786b5 --- /dev/null +++ b/lib/sh/fmtumax.c @@ -0,0 +1,27 @@ +/* fmtumax.c -- Convert uintmax_t to string. */ + +/* Copyright (C) 2002 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#define LONG intmax_t +#define UNSIGNED_LONG uintmax_t +#define fmtulong fmtumax + +#include "fmtulong.c" diff --git a/lib/sh/fnxform.c b/lib/sh/fnxform.c new file mode 100644 index 0000000..35d7e73 --- /dev/null +++ b/lib/sh/fnxform.c @@ -0,0 +1,199 @@ +/* fnxform - use iconv(3) to transform strings to and from "filename" format */ + +/* Copyright (C) 2009-2020 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif +#include "bashansi.h" +#include <stdio.h> +#include "bashtypes.h" + +#include "stdc.h" +#include "bashintl.h" +#include <xmalloc.h> + +#if defined (HAVE_ICONV) +# include <iconv.h> +#endif + +#if defined (HAVE_LOCALE_CHARSET) +extern const char *locale_charset PARAMS((void)); +#else +extern char *get_locale_var PARAMS((char *)); +#endif + +#if defined (HAVE_ICONV) +static iconv_t conv_fromfs = (iconv_t)-1; +static iconv_t conv_tofs = (iconv_t)-1; + +#define OUTLEN_MAX 4096 + +static char *outbuf = 0; +static size_t outlen = 0; + +static char *curencoding PARAMS((void)); +static void init_tofs PARAMS((void)); +static void init_fromfs PARAMS((void)); + +static char * +curencoding () +{ + char *loc; +#if defined (HAVE_LOCALE_CHARSET) + loc = (char *)locale_charset (); + return loc; +#else + char *dot, *mod; + + loc = get_locale_var ("LC_CTYPE"); + if (loc == 0 || *loc == 0) + return ""; + dot = strchr (loc, '.'); + if (dot == 0) + return loc; + mod = strchr (dot, '@'); + if (mod) + *mod = '\0'; + return ++dot; +#endif +} + +static void +init_tofs () +{ + char *cur; + + cur = curencoding (); + conv_tofs = iconv_open ("UTF-8-MAC", cur); +} + +static void +init_fromfs () +{ + char *cur; + + cur = curencoding (); + conv_fromfs = iconv_open (cur, "UTF-8-MAC"); +} + +char * +fnx_tofs (string, len) + char *string; + size_t len; +{ +#ifdef MACOSX + ICONV_CONST char *inbuf; + char *tempbuf; + size_t templen; + + if (conv_tofs == (iconv_t)-1) + init_tofs (); + if (conv_tofs == (iconv_t)-1) + return string; + + /* Free and reallocate outbuf if it's *too* big */ + if (outlen >= OUTLEN_MAX && len < OUTLEN_MAX - 8) + { + free (outbuf); + outbuf = 0; + outlen = 0; + } + + inbuf = string; + if (outbuf == 0 || outlen < len + 8) + { + outlen = len + 8; + outbuf = outbuf ? xrealloc (outbuf, outlen + 1) : xmalloc (outlen + 1); + } + tempbuf = outbuf; + templen = outlen; + + iconv (conv_tofs, NULL, NULL, NULL, NULL); + + if (iconv (conv_tofs, &inbuf, &len, &tempbuf, &templen) == (size_t)-1) + return string; + + *tempbuf = '\0'; + return outbuf; +#else + return string; +#endif +} + +char * +fnx_fromfs (string, len) + char *string; + size_t len; +{ +#ifdef MACOSX + ICONV_CONST char *inbuf; + char *tempbuf; + size_t templen; + + if (conv_fromfs == (iconv_t)-1) + init_fromfs (); + if (conv_fromfs == (iconv_t)-1) + return string; + + /* Free and reallocate outbuf if it's *too* big */ + if (outlen >= OUTLEN_MAX && len < OUTLEN_MAX - 8) + { + free (outbuf); + outbuf = 0; + outlen = 0; + } + + inbuf = string; + if (outbuf == 0 || outlen < (len + 8)) + { + outlen = len + 8; + outbuf = outbuf ? xrealloc (outbuf, outlen + 1) : xmalloc (outlen + 1); + } + tempbuf = outbuf; + templen = outlen; + + iconv (conv_fromfs, NULL, NULL, NULL, NULL); + + if (iconv (conv_fromfs, &inbuf, &len, &tempbuf, &templen) == (size_t)-1) + return string; + + *tempbuf = '\0'; + return outbuf; +#else + return string; +#endif +} + +#else +char * +fnx_tofs (string) + char *string; +{ + return string; +} + +char * +fnx_fromfs (string) + char *string; +{ + return string; +} +#endif diff --git a/lib/sh/fpurge.c b/lib/sh/fpurge.c new file mode 100644 index 0000000..8cd4e36 --- /dev/null +++ b/lib/sh/fpurge.c @@ -0,0 +1,232 @@ +/* fpurge - Flushing buffers of a FILE stream. */ + +/* Copyright (C) 2007-2020 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#include "stdc.h" + +#include <stdio.h> + +/* Specification. Same as in ../../externs.h. */ +#define NEED_FPURGE_DECL +#if HAVE_FPURGE +# define fpurge _bash_fpurge +#endif +extern int fpurge PARAMS((FILE *stream)); + +#if HAVE___FPURGE /* glibc >= 2.2, Haiku, Solaris >= 7 */ +# include <stdio_ext.h> +#endif +#include <stdlib.h> + +/* Inline contents of gnulib:stdio-impl.h */ + +/* Many stdio implementations have the same logic and therefore can share + the same implementation of stdio extension API, except that some fields + have different naming conventions, or their access requires some casts. */ + +/* BSD stdio derived implementations. */ + +#if defined __NetBSD__ /* NetBSD */ +/* Get __NetBSD_Version__. */ +# include <sys/param.h> +#endif + +#if defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin */ + +# if defined __DragonFly__ /* DragonFly */ + /* See <http://www.dragonflybsd.org/cvsweb/src/lib/libc/stdio/priv_stdio.h?rev=HEAD&content-type=text/x-cvsweb-markup>. */ +# define fp_ ((struct { struct __FILE_public pub; \ + struct { unsigned char *_base; int _size; } _bf; \ + void *cookie; \ + void *_close; \ + void *_read; \ + void *_seek; \ + void *_write; \ + struct { unsigned char *_base; int _size; } _ub; \ + int _ur; \ + unsigned char _ubuf[3]; \ + unsigned char _nbuf[1]; \ + struct { unsigned char *_base; int _size; } _lb; \ + int _blksize; \ + fpos_t _offset; \ + /* More fields, not relevant here. */ \ + } *) fp) + /* See <http://www.dragonflybsd.org/cvsweb/src/include/stdio.h?rev=HEAD&content-type=text/x-cvsweb-markup>. */ +# define _p pub._p +# define _flags pub._flags +# define _r pub._r +# define _w pub._w +# else +# define fp_ fp +# endif + +# if (defined __NetBSD__ && __NetBSD_Version__ >= 105270000) || defined __OpenBSD__ /* NetBSD >= 1.5ZA, OpenBSD */ + /* See <http://cvsweb.netbsd.org/bsdweb.cgi/src/lib/libc/stdio/fileext.h?rev=HEAD&content-type=text/x-cvsweb-markup> + and <http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/stdio/fileext.h?rev=HEAD&content-type=text/x-cvsweb-markup> */ + struct __sfileext + { + struct __sbuf _ub; /* ungetc buffer */ + /* More fields, not relevant here. */ + }; +# define fp_ub ((struct __sfileext *) fp->_ext._base)->_ub +# else /* FreeBSD, NetBSD <= 1.5Z, DragonFly, MacOS X, Cygwin */ +# define fp_ub fp_->_ub +# endif + +# define HASUB(fp) (fp_ub._base != NULL) + +#endif + +/* SystemV derived implementations. */ + +#if defined _IOERR + +# if defined __sun && defined _LP64 /* Solaris/{SPARC,AMD64} 64-bit */ +# define fp_ ((struct { unsigned char *_ptr; \ + unsigned char *_base; \ + unsigned char *_end; \ + long _cnt; \ + int _file; \ + unsigned int _flag; \ + } *) fp) +# else +# define fp_ fp +# endif + +# if defined _SCO_DS /* OpenServer */ +# define _cnt __cnt +# define _ptr __ptr +# define _base __base +# define _flag __flag +# endif + +#endif + +int +fpurge (FILE *fp) +{ +#if HAVE___FPURGE /* glibc >= 2.2, Haiku, Solaris >= 7 */ + + __fpurge (fp); + /* The __fpurge function does not have a return value. */ + return 0; + +#elif HAVE_FPURGE /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin 1.7 */ + + /* Call the system's fpurge function. */ +# undef fpurge +# if !HAVE_DECL_FPURGE + extern int fpurge (FILE *); +# endif + int result = fpurge (fp); +# if defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin */ + if (result == 0) + /* Correct the invariants that fpurge broke. + <stdio.h> on BSD systems says: + "The following always hold: if _flags & __SRD, _w is 0." + If this invariant is not fulfilled and the stream is read-write but + currently reading, subsequent putc or fputc calls will write directly + into the buffer, although they shouldn't be allowed to. */ + if ((fp_->_flags & __SRD) != 0) + fp_->_w = 0; +# endif + return result; + +#else + + /* Most systems provide FILE as a struct and the necessary bitmask in + <stdio.h>, because they need it for implementing getc() and putc() as + fast macros. */ +# if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */ + fp->_IO_read_end = fp->_IO_read_ptr; + fp->_IO_write_ptr = fp->_IO_write_base; + /* Avoid memory leak when there is an active ungetc buffer. */ + if (fp->_IO_save_base != NULL) + { + free (fp->_IO_save_base); + fp->_IO_save_base = NULL; + } + return 0; +# elif defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin */ + fp_->_p = fp_->_bf._base; + fp_->_r = 0; + fp_->_w = ((fp_->_flags & (__SLBF | __SNBF | __SRD)) == 0 /* fully buffered and not currently reading? */ + ? fp_->_bf._size + : 0); + /* Avoid memory leak when there is an active ungetc buffer. */ + if (fp_ub._base != NULL) + { + if (fp_ub._base != fp_->_ubuf) + free (fp_ub._base); + fp_ub._base = NULL; + } + return 0; +# elif defined __EMX__ /* emx+gcc */ + fp->_ptr = fp->_buffer; + fp->_rcount = 0; + fp->_wcount = 0; + fp->_ungetc_count = 0; + return 0; +# elif defined _IOERR || defined __TANDEM /* AIX, HP-UX, IRIX, OSF/1, Solaris, OpenServer, mingw */ + fp->_ptr = fp->_base; + if (fp->_ptr != NULL) + fp->_cnt = 0; + return 0; +# elif defined __UCLIBC__ /* uClibc */ +# ifdef __STDIO_BUFFERS + if (fp->__modeflags & __FLAG_WRITING) + fp->__bufpos = fp->__bufstart; + else if (fp->__modeflags & (__FLAG_READONLY | __FLAG_READING)) + fp->__bufpos = fp->__bufread; +# endif + return 0; +# elif defined __QNX__ /* QNX */ + fp->_Rback = fp->_Back + sizeof (fp->_Back); + fp->_Rsave = NULL; + if (fp->_Mode & 0x2000 /* _MWRITE */) + /* fp->_Buf <= fp->_Next <= fp->_Wend */ + fp->_Next = fp->_Buf; + else + /* fp->_Buf <= fp->_Next <= fp->_Rend */ + fp->_Rend = fp->_Next; + return 0; +# elif defined __MINT__ /* Atari FreeMiNT */ + if (fp->__pushed_back) + { + fp->__bufp = fp->__pushback_bufp; + fp->__pushed_back = 0; + } + /* Preserve the current file position. */ + if (fp->__target != -1) + fp->__target += fp->__bufp - fp->__buffer; + fp->__bufp = fp->__buffer; + /* Nothing in the buffer, next getc is nontrivial. */ + fp->__get_limit = fp->__bufp; + /* Nothing in the buffer, next putc is nontrivial. */ + fp->__put_limit = fp->__buffer; + return 0; +# else +# warning "Please port gnulib fpurge.c to your platform! Look at the definitions of fflush, setvbuf and ungetc on your system, then report this to bug-gnulib." + return 0; +# endif + +#endif +} diff --git a/lib/sh/getcwd.c b/lib/sh/getcwd.c new file mode 100644 index 0000000..d7bd241 --- /dev/null +++ b/lib/sh/getcwd.c @@ -0,0 +1,356 @@ +/* getcwd.c -- get pathname of current directory */ + +/* Copyright (C) 1991 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#if !defined (HAVE_GETCWD) + +#if !defined (__GNUC__) && !defined (HAVE_ALLOCA_H) && defined (_AIX) + #pragma alloca +#endif /* _AIX && RISC6000 && !__GNUC__ */ + +#if defined (__QNX__) +# undef HAVE_LSTAT +#endif + +#include <bashtypes.h> +#include <errno.h> + +#if defined (HAVE_LIMITS_H) +# include <limits.h> +#endif + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +#include <posixdir.h> +#include <posixstat.h> +#include <maxpath.h> +#include <memalloc.h> + +#include <bashansi.h> + +#if !defined (D_FILENO_AVAILABLE) +# include "command.h" +# include "general.h" +# include "externs.h" +#endif + +#include <xmalloc.h> + +#if !defined (errno) +extern int errno; +#endif /* !errno */ + +#if !defined (HAVE_LSTAT) +# define lstat stat +#endif + +#if !defined (NULL) +# define NULL 0 +#endif + +/* If the d_fileno member of a struct dirent doesn't return anything useful, + we need to check inode number equivalence the hard way. Return 1 if + the inode corresponding to PATH/DIR is identical to THISINO. */ +#if !defined (D_FILENO_AVAILABLE) +static int +_path_checkino (dotp, name, thisino) + char *dotp; + char *name; + ino_t thisino; +{ + char *fullpath; + int r, e; + struct stat st; + + e = errno; + fullpath = sh_makepath (dotp, name, MP_RMDOT); + if (stat (fullpath, &st) < 0) + { + errno = e; + return 0; + } + free (fullpath); + errno = e; + return (st.st_ino == thisino); +} +#endif + +/* Get the pathname of the current working directory, + and put it in SIZE bytes of BUF. Returns NULL if the + directory couldn't be determined or SIZE was too small. + If successful, returns BUF. In GNU, if BUF is NULL, + an array is allocated with `malloc'; the array is SIZE + bytes long, unless SIZE <= 0, in which case it is as + big as necessary. */ +#if defined (__STDC__) +char * +getcwd (char *buf, size_t size) +#else /* !__STDC__ */ +char * +getcwd (buf, size) + char *buf; + size_t size; +#endif /* !__STDC__ */ +{ + static const char dots[] + = "../../../../../../../../../../../../../../../../../../../../../../../\ +../../../../../../../../../../../../../../../../../../../../../../../../../../\ +../../../../../../../../../../../../../../../../../../../../../../../../../.."; + const char *dotp, *dotlist; + size_t dotsize; + dev_t rootdev, thisdev; + ino_t rootino, thisino; + char path[PATH_MAX + 1]; + register char *pathp; + char *pathbuf; + size_t pathsize; + struct stat st; + int saved_errno; + + if (buf != NULL && size == 0) + { + errno = EINVAL; + return ((char *)NULL); + } + + pathsize = sizeof (path); + pathp = &path[pathsize]; + *--pathp = '\0'; + pathbuf = path; + + if (stat (".", &st) < 0) + return ((char *)NULL); + thisdev = st.st_dev; + thisino = st.st_ino; + + if (stat ("/", &st) < 0) + return ((char *)NULL); + rootdev = st.st_dev; + rootino = st.st_ino; + + saved_errno = 0; + + dotsize = sizeof (dots) - 1; + dotp = &dots[sizeof (dots)]; + dotlist = dots; + while (!(thisdev == rootdev && thisino == rootino)) + { + register DIR *dirstream; + register struct dirent *d; + dev_t dotdev; + ino_t dotino; + char mount_point; + int namlen; + + /* Look at the parent directory. */ + if (dotp == dotlist) + { + /* My, what a deep directory tree you have, Grandma. */ + char *new; + if (dotlist == dots) + { + new = (char *)malloc (dotsize * 2 + 1); + if (new == NULL) + goto lose; + memcpy (new, dots, dotsize); + } + else + { + new = (char *)realloc ((PTR_T) dotlist, dotsize * 2 + 1); + if (new == NULL) + goto lose; + } + memcpy (&new[dotsize], new, dotsize); + dotp = &new[dotsize]; + dotsize *= 2; + new[dotsize] = '\0'; + dotlist = new; + } + + dotp -= 3; + + /* Figure out if this directory is a mount point. */ + if (stat (dotp, &st) < 0) + goto lose; + dotdev = st.st_dev; + dotino = st.st_ino; + mount_point = dotdev != thisdev; + + /* Search for the last directory. */ + dirstream = opendir (dotp); + if (dirstream == NULL) + goto lose; + while ((d = readdir (dirstream)) != NULL) + { + if (d->d_name[0] == '.' && + (d->d_name[1] == '\0' || + (d->d_name[1] == '.' && d->d_name[2] == '\0'))) + continue; +#if defined (D_FILENO_AVAILABLE) + if (mount_point || d->d_fileno == thisino) +#else + if (mount_point || _path_checkino (dotp, d->d_name, thisino)) +#endif + { + char *name; + + namlen = D_NAMLEN(d); + name = (char *) + alloca (dotlist + dotsize - dotp + 1 + namlen + 1); + memcpy (name, dotp, dotlist + dotsize - dotp); + name[dotlist + dotsize - dotp] = '/'; + memcpy (&name[dotlist + dotsize - dotp + 1], + d->d_name, namlen + 1); + if (lstat (name, &st) < 0) + { +#if 0 + int save = errno; + (void) closedir (dirstream); + errno = save; + goto lose; +#else + saved_errno = errno; +#endif + } + if (st.st_dev == thisdev && st.st_ino == thisino) + break; + } + } + if (d == NULL) + { +#if 0 + int save = errno; +#else + int save = errno ? errno : saved_errno; +#endif + (void) closedir (dirstream); + errno = save; + goto lose; + } + else + { + size_t space; + + while ((space = pathp - pathbuf) <= namlen) + { + char *new; + + if (pathbuf == path) + { + new = (char *)malloc (pathsize * 2); + if (!new) + goto lose; + } + else + { + new = (char *)realloc ((PTR_T) pathbuf, (pathsize * 2)); + if (!new) + goto lose; + pathp = new + space; + } + (void) memcpy (new + pathsize + space, pathp, pathsize - space); + pathp = new + pathsize + space; + pathbuf = new; + pathsize *= 2; + } + + pathp -= namlen; + (void) memcpy (pathp, d->d_name, namlen); + *--pathp = '/'; + (void) closedir (dirstream); + } + + thisdev = dotdev; + thisino = dotino; + } + + if (pathp == &path[sizeof(path) - 1]) + *--pathp = '/'; + + if (dotlist != dots) + free ((PTR_T) dotlist); + + { + size_t len = pathbuf + pathsize - pathp; + if (buf == NULL && size <= 0) + size = len; + + if ((size_t) size < len) + { + errno = ERANGE; + goto lose2; + } + if (buf == NULL) + { + buf = (char *) malloc (size); + if (buf == NULL) + goto lose2; + } + + (void) memcpy((PTR_T) buf, (PTR_T) pathp, len); + } + + if (pathbuf != path) + free (pathbuf); + + return (buf); + + lose: + if ((dotlist != dots) && dotlist) + { + int e = errno; + free ((PTR_T) dotlist); + errno = e; + } + + lose2: + if ((pathbuf != path) && pathbuf) + { + int e = errno; + free ((PTR_T) pathbuf); + errno = e; + } + return ((char *)NULL); +} + +#if defined (TEST) +# include <stdio.h> +main (argc, argv) + int argc; + char **argv; +{ + char b[PATH_MAX]; + + if (getcwd(b, sizeof(b))) + { + printf ("%s\n", b); + exit (0); + } + else + { + perror ("cwd: getcwd"); + exit (1); + } +} +#endif /* TEST */ +#endif /* !HAVE_GETCWD */ diff --git a/lib/sh/getenv.c b/lib/sh/getenv.c new file mode 100644 index 0000000..1e682ae --- /dev/null +++ b/lib/sh/getenv.c @@ -0,0 +1,233 @@ +/* getenv.c - get environment variable value from the shell's variable + list. */ + +/* Copyright (C) 1997-2002 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#if defined (CAN_REDEFINE_GETENV) + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +#include <bashansi.h> +#include <errno.h> +#include <shell.h> + +#ifndef errno +extern int errno; +#endif + +extern char **environ; + +/* We supply our own version of getenv () because we want library + routines to get the changed values of exported variables. */ + +/* The NeXT C library has getenv () defined and used in the same file. + This screws our scheme. However, Bash will run on the NeXT using + the C library getenv (), since right now the only environment variable + that we care about is HOME, and that is already defined. */ +static char *last_tempenv_value = (char *)NULL; + +char * +getenv (name) + const char *name; +{ + SHELL_VAR *var; + + if (name == 0 || *name == '\0') + return ((char *)NULL); + + var = find_tempenv_variable ((char *)name); + if (var) + { + FREE (last_tempenv_value); + + last_tempenv_value = value_cell (var) ? savestring (value_cell (var)) : (char *)NULL; + return (last_tempenv_value); + } + else if (shell_variables) + { + var = find_variable ((char *)name); + if (var && exported_p (var)) + return (value_cell (var)); + } + else if (environ) + { + register int i, len; + + /* In some cases, s5r3 invokes getenv() before main(); BSD systems + using gprof also exhibit this behavior. This means that + shell_variables will be 0 when this is invoked. We look up the + variable in the real environment in that case. */ + + for (i = 0, len = strlen (name); environ[i]; i++) + { + if ((STREQN (environ[i], name, len)) && (environ[i][len] == '=')) + return (environ[i] + len + 1); + } + } + + return ((char *)NULL); +} + +/* Some versions of Unix use _getenv instead. */ +char * +_getenv (name) + const char *name; +{ + return (getenv (name)); +} + +/* SUSv3 says argument is a `char *'; BSD implementations disagree */ +int +putenv (str) +#ifndef HAVE_STD_PUTENV + const char *str; +#else + char *str; +#endif +{ + SHELL_VAR *var; + char *name, *value; + int offset; + + if (str == 0 || *str == '\0') + { + errno = EINVAL; + return -1; + } + + offset = assignment (str, 0); + if (str[offset] != '=') + { + errno = EINVAL; + return -1; + } + name = savestring (str); + name[offset] = 0; + + value = name + offset + 1; + + /* XXX - should we worry about readonly here? */ + var = bind_variable (name, value, 0); + if (var == 0) + { + errno = EINVAL; + return -1; + } + + VUNSETATTR (var, att_invisible); + VSETATTR (var, att_exported); + + return 0; +} + +#if 0 +int +_putenv (name) +#ifndef HAVE_STD_PUTENV + const char *name; +#else + char *name; +#endif +{ + return putenv (name); +} +#endif + +int +setenv (name, value, rewrite) + const char *name; + const char *value; + int rewrite; +{ + SHELL_VAR *var; + char *v; + + if (name == 0 || *name == '\0' || strchr (name, '=') != 0) + { + errno = EINVAL; + return -1; + } + + var = 0; + v = (char *)value; /* some compilers need explicit cast */ + /* XXX - should we worry about readonly here? */ + if (rewrite == 0) + var = find_variable (name); + + if (var == 0) + var = bind_variable (name, v, 0); + + if (var == 0) + return -1; + + VUNSETATTR (var, att_invisible); + VSETATTR (var, att_exported); + + return 0; +} + +#if 0 +int +_setenv (name, value, rewrite) + const char *name; + const char *value; + int rewrite; +{ + return setenv (name, value, rewrite); +} +#endif + +/* SUSv3 says unsetenv returns int; existing implementations (BSD) disagree. */ + +#ifdef HAVE_STD_UNSETENV +#define UNSETENV_RETURN(N) return(N) +#define UNSETENV_RETTYPE int +#else +#define UNSETENV_RETURN(N) return +#define UNSETENV_RETTYPE void +#endif + +UNSETENV_RETTYPE +unsetenv (name) + const char *name; +{ + if (name == 0 || *name == '\0' || strchr (name, '=') != 0) + { + errno = EINVAL; + UNSETENV_RETURN(-1); + } + + /* XXX - should we just remove the export attribute here? */ +#if 1 + unbind_variable (name); +#else + SHELL_VAR *v; + + v = find_variable (name); + if (v) + VUNSETATTR (v, att_exported); +#endif + + UNSETENV_RETURN(0); +} +#endif /* CAN_REDEFINE_GETENV */ diff --git a/lib/sh/gettimeofday.c b/lib/sh/gettimeofday.c new file mode 100644 index 0000000..b654c15 --- /dev/null +++ b/lib/sh/gettimeofday.c @@ -0,0 +1,35 @@ +/* gettimeofday.c - gettimeofday replacement using time() */ + +/* Copyright (C) 2020 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include "config.h" + +#if !defined (HAVE_GETTIMEOFDAY) + +#include "posixtime.h" + +/* A version of gettimeofday that just sets tv_sec from time(3) */ +int +gettimeofday (struct timeval *tv, void *tz) +{ + tv->tv_sec = (time_t) time ((time_t *)0); + tv->tv_usec = 0; + return 0; +} +#endif diff --git a/lib/sh/inet_aton.c b/lib/sh/inet_aton.c new file mode 100644 index 0000000..e377178 --- /dev/null +++ b/lib/sh/inet_aton.c @@ -0,0 +1,214 @@ +/* inet_aton - convert string to numeric IP address */ + +/* Snagged from GNU C library, version 2.0.3. */ + +/* + * ++Copyright++ 1983, 1990, 1993 + * - + * Copyright (c) 1983, 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * - + * Portions Copyright (c) 1993 by Digital Equipment Corporation. + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies, and that + * the name of Digital Equipment Corporation not be used in advertising or + * publicity pertaining to distribution of the document or software without + * specific, written prior permission. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL + * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT + * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL + * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR + * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS + * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS + * SOFTWARE. + * - + * --Copyright-- + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)inet_addr.c 8.1 (Berkeley) 6/17/93"; +static char rcsid[] = "$Id: inet_addr.c,v 1.5 1996/08/14 03:48:37 drepper Exp $"; +#endif /* LIBC_SCCS and not lint */ + +#include <config.h> + +#if !defined (HAVE_INET_ATON) && defined (HAVE_NETWORK) && defined (HAVE_NETINET_IN_H) && defined (HAVE_ARPA_INET_H) + +#include <sys/types.h> +#if defined (HAVE_SYS_PARAM_H) +#include <sys/param.h> +#endif +#include <netinet/in.h> +#include <arpa/inet.h> + +#ifdef HAVE_UNISTD_H +# include <unistd.h> +#endif + +#include <bashansi.h> +#include <ctype.h> +#include <stdc.h> + +#ifndef INADDR_NONE +# define INADDR_NONE 0xffffffff +#endif + +/* these are compatibility routines, not needed on recent BSD releases */ + +#if 0 +/* Not used, not needed. */ +/* + * Ascii internet address interpretation routine. + * The value returned is in network order. + */ +u_long +inet_addr(cp) + register const char *cp; +{ + struct in_addr val; + + if (inet_aton(cp, &val)) + return (val.s_addr); + return (INADDR_NONE); +} +#endif + +/* + * Check whether "cp" is a valid ascii representation + * of an Internet address and convert to a binary address. + * Returns 1 if the address is valid, 0 if not. + * This replaces inet_addr, the return value from which + * cannot distinguish between failure and a local broadcast address. + */ +int +inet_aton(cp, addr) + register const char *cp; + struct in_addr *addr; +{ + register u_bits32_t val; + register int base, n; + register unsigned char c; + u_int parts[4]; + register u_int *pp = parts; + + c = *cp; + for (;;) { + /* + * Collect number up to ``.''. + * Values are specified as for C: + * 0x=hex, 0=octal, isdigit=decimal. + */ +#if 0 + if (!isdigit(c)) +#else + if (c != '0' && c != '1' && c != '2' && c != '3' && c != '4' && + c != '5' && c != '6' && c != '7' && c != '8' && c != '9') +#endif + return (0); + val = 0; base = 10; + if (c == '0') { + c = *++cp; + if (c == 'x' || c == 'X') + base = 16, c = *++cp; + else + base = 8; + } + for (;;) { + if (isascii(c) && isdigit(c)) { + val = (val * base) + (c - '0'); + c = *++cp; + } else if (base == 16 && isascii(c) && isxdigit(c)) { + val = (val << 4) | + (c + 10 - (islower(c) ? 'a' : 'A')); + c = *++cp; + } else + break; + } + if (c == '.') { + /* + * Internet format: + * a.b.c.d + * a.b.c (with c treated as 16 bits) + * a.b (with b treated as 24 bits) + */ + if (pp >= parts + 3) + return (0); + *pp++ = val; + c = *++cp; + } else + break; + } + /* + * Check for trailing characters. + */ + if (c != '\0' && (!isascii(c) || !isspace(c))) + return (0); + /* + * Concoct the address according to + * the number of parts specified. + */ + n = pp - parts + 1; + switch (n) { + + case 0: + return (0); /* initial nondigit */ + + case 1: /* a -- 32 bits */ + break; + + case 2: /* a.b -- 8.24 bits */ + if (val > 0xffffff) + return (0); + val |= parts[0] << 24; + break; + + case 3: /* a.b.c -- 8.8.16 bits */ + if (val > 0xffff) + return (0); + val |= (parts[0] << 24) | (parts[1] << 16); + break; + + case 4: /* a.b.c.d -- 8.8.8.8 bits */ + if (val > 0xff) + return (0); + val |= (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8); + break; + } + if (addr) + addr->s_addr = htonl(val); + return (1); +} + +#endif /* !HAVE_INET_ATON */ diff --git a/lib/sh/input_avail.c b/lib/sh/input_avail.c new file mode 100644 index 0000000..695165f --- /dev/null +++ b/lib/sh/input_avail.c @@ -0,0 +1,165 @@ +/* input_avail.c -- check whether or not data is available for reading on a + specified file descriptor. */ + +/* Copyright (C) 2008,2009-2019 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#if defined (__TANDEM) +# include <floss.h> +#endif + +#if defined (HAVE_CONFIG_H) +# include <config.h> +#endif + +#include <sys/types.h> +#include <fcntl.h> +#if defined (HAVE_SYS_FILE_H) +# include <sys/file.h> +#endif /* HAVE_SYS_FILE_H */ + +#if defined (HAVE_PSELECT) +# include <signal.h> +#endif + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif /* HAVE_UNISTD_H */ + +#include "bashansi.h" + +#include "posixselect.h" + +#if defined (FIONREAD_IN_SYS_IOCTL) +# include <sys/ioctl.h> +#endif + +#include <stdio.h> +#include <errno.h> + +#if !defined (errno) +extern int errno; +#endif /* !errno */ + +#if !defined (O_NDELAY) && defined (O_NONBLOCK) +# define O_NDELAY O_NONBLOCK /* Posix style */ +#endif + +/* Return >= 1 if select/FIONREAD indicates data available for reading on + file descriptor FD; 0 if no data available. Return -1 on error. */ +int +input_avail (fd) + int fd; +{ + int result, chars_avail; +#if defined(HAVE_SELECT) + fd_set readfds, exceptfds; + struct timeval timeout; +#endif + + if (fd < 0) + return -1; + + chars_avail = 0; + +#if defined (HAVE_SELECT) + FD_ZERO (&readfds); + FD_ZERO (&exceptfds); + FD_SET (fd, &readfds); + FD_SET (fd, &exceptfds); + timeout.tv_sec = 0; + timeout.tv_usec = 0; + result = select (fd + 1, &readfds, (fd_set *)NULL, &exceptfds, &timeout); + return ((result <= 0) ? 0 : 1); +#endif + +#if defined (FIONREAD) + errno = 0; + result = ioctl (fd, FIONREAD, &chars_avail); + if (result == -1 && errno == EIO) + return -1; + return (chars_avail); +#endif + + return 0; +} + +/* Wait until NCHARS are available for reading on file descriptor FD. + This can wait indefinitely. Return -1 on error. */ +int +nchars_avail (fd, nchars) + int fd; + int nchars; +{ + int result, chars_avail; +#if defined(HAVE_SELECT) + fd_set readfds, exceptfds; +#endif +#if defined (HAVE_PSELECT) + sigset_t set, oset; +#endif + + if (fd < 0 || nchars < 0) + return -1; + if (nchars == 0) + return (input_avail (fd)); + + chars_avail = 0; + +#if defined (HAVE_SELECT) + FD_ZERO (&readfds); + FD_ZERO (&exceptfds); + FD_SET (fd, &readfds); + FD_SET (fd, &exceptfds); +#endif +#if defined (HAVE_SELECT) || defined (HAVE_PSELECT) + sigprocmask (SIG_BLOCK, (sigset_t *)NULL, &set); +# ifdef SIGCHLD + sigaddset (&set, SIGCHLD); +# endif + sigemptyset (&oset); +#endif + + while (1) + { + result = 0; +#if defined (HAVE_PSELECT) + /* XXX - use pselect(2) to block SIGCHLD atomically */ + result = pselect (fd + 1, &readfds, (fd_set *)NULL, &exceptfds, (struct timespec *)NULL, &set); +#elif defined (HAVE_SELECT) + sigprocmask (SIG_BLOCK, &set, &oset); + result = select (fd + 1, &readfds, (fd_set *)NULL, &exceptfds, (struct timeval *)NULL); + sigprocmask (SIG_BLOCK, &oset, (sigset_t *)NULL); +#endif + if (result < 0) + return -1; + +#if defined (FIONREAD) + errno = 0; + result = ioctl (fd, FIONREAD, &chars_avail); + if (result == -1 && errno == EIO) + return -1; + if (chars_avail >= nchars) + break; +#else + break; +#endif + } + + return 0; +} diff --git a/lib/sh/itos.c b/lib/sh/itos.c new file mode 100644 index 0000000..cd36ef3 --- /dev/null +++ b/lib/sh/itos.c @@ -0,0 +1,84 @@ +/* itos.c -- Convert integer to string. */ + +/* Copyright (C) 1998-2002 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +#include <bashansi.h> +#include "shell.h" + +char * +inttostr (i, buf, len) + intmax_t i; + char *buf; + size_t len; +{ + return (fmtumax (i, 10, buf, len, 0)); +} + +/* Integer to string conversion. This conses the string; the + caller should free it. */ +char * +itos (i) + intmax_t i; +{ + char *p, lbuf[INT_STRLEN_BOUND(intmax_t) + 1]; + + p = fmtumax (i, 10, lbuf, sizeof(lbuf), 0); + return (savestring (p)); +} + +/* Integer to string conversion. This conses the string using strdup; + caller should free it and be prepared to deal with NULL return. */ +char * +mitos (i) + intmax_t i; +{ + char *p, lbuf[INT_STRLEN_BOUND(intmax_t) + 1]; + + p = fmtumax (i, 10, lbuf, sizeof(lbuf), 0); + return (strdup (p)); +} + +char * +uinttostr (i, buf, len) + uintmax_t i; + char *buf; + size_t len; +{ + return (fmtumax (i, 10, buf, len, FL_UNSIGNED)); +} + +/* Integer to string conversion. This conses the string; the + caller should free it. */ +char * +uitos (i) + uintmax_t i; +{ + char *p, lbuf[INT_STRLEN_BOUND(uintmax_t) + 1]; + + p = fmtumax (i, 10, lbuf, sizeof(lbuf), FL_UNSIGNED); + return (savestring (p)); +} diff --git a/lib/sh/mailstat.c b/lib/sh/mailstat.c new file mode 100644 index 0000000..bd5c25f --- /dev/null +++ b/lib/sh/mailstat.c @@ -0,0 +1,159 @@ +/* mailstat.c -- stat a mailbox file, handling maildir-type mail directories */ + +/* Copyright (C) 2001 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#include <stdio.h> +#include <errno.h> + +#include <bashtypes.h> +#include <posixstat.h> +#include <posixdir.h> +#include <bashansi.h> + +#if defined (HAVE_SYS_PARAM_H) +# include <sys/param.h> +#endif + +#include <maxpath.h> + +/* + * Stat a file. If it's a maildir, check all messages + * in the maildir and present the grand total as a file. + * The fields in the 'struct stat' are from the mail directory. + * The following fields are emulated: + * + * st_nlink always 1, unless st_blocks is not present, in which case it's + * the total number of messages + * st_size total number of bytes in all files + * st_blocks total number of messages, if present in struct stat + * st_atime access time of newest file in maildir + * st_mtime modify time of newest file in maildir + * st_mode S_IFDIR changed to S_IFREG + * + * This is good enough for most mail-checking applications. + */ + +int +mailstat(path, st) + const char *path; + struct stat *st; +{ + static struct stat st_new_last, st_ret_last; + struct stat st_ret, st_tmp; + DIR *dd; + struct dirent *fn; + char dir[PATH_MAX * 2], file[PATH_MAX * 2 + 1]; + int i, l; + time_t atime, mtime; + + atime = mtime = 0; + + /* First see if it's a directory. */ + if ((i = stat(path, st)) != 0 || S_ISDIR(st->st_mode) == 0) + return i; + + if (strlen(path) > sizeof(dir) - 5) + { +#ifdef ENAMETOOLONG + errno = ENAMETOOLONG; +#else + errno = EINVAL; +#endif + return -1; + } + + st_ret = *st; + st_ret.st_nlink = 1; + st_ret.st_size = 0; +#ifdef HAVE_STRUCT_STAT_ST_BLOCKS + st_ret.st_blocks = 0; +#else + st_ret.st_nlink = 0; +#endif + st_ret.st_mode &= ~S_IFDIR; + st_ret.st_mode |= S_IFREG; + + /* See if cur/ is present */ + sprintf(dir, "%s/cur", path); + if (stat(dir, &st_tmp) || S_ISDIR(st_tmp.st_mode) == 0) + return 0; + st_ret.st_atime = st_tmp.st_atime; + + /* See if tmp/ is present */ + sprintf(dir, "%s/tmp", path); + if (stat(dir, &st_tmp) || S_ISDIR(st_tmp.st_mode) == 0) + return 0; + st_ret.st_mtime = st_tmp.st_mtime; + + /* And new/ */ + sprintf(dir, "%s/new", path); + if (stat(dir, &st_tmp) || S_ISDIR(st_tmp.st_mode) == 0) + return 0; + st_ret.st_mtime = st_tmp.st_mtime; + + /* Optimization - if new/ didn't change, nothing else did. */ + if (st_tmp.st_dev == st_new_last.st_dev && + st_tmp.st_ino == st_new_last.st_ino && + st_tmp.st_atime == st_new_last.st_atime && + st_tmp.st_mtime == st_new_last.st_mtime) + { + *st = st_ret_last; + return 0; + } + st_new_last = st_tmp; + + /* Loop over new/ and cur/ */ + for (i = 0; i < 2; i++) + { + sprintf(dir, "%s/%s", path, i ? "cur" : "new"); + sprintf(file, "%s/", dir); + l = strlen(file); + if ((dd = opendir(dir)) == NULL) + return 0; + while ((fn = readdir(dd)) != NULL) + { + if (fn->d_name[0] == '.' || strlen(fn->d_name) + l >= sizeof(file)) + continue; + strcpy(file + l, fn->d_name); + if (stat(file, &st_tmp) != 0) + continue; + st_ret.st_size += st_tmp.st_size; +#ifdef HAVE_STRUCT_STAT_ST_BLOCKS + st_ret.st_blocks++; +#else + st_ret.st_nlink++; +#endif + if (st_tmp.st_atime != st_tmp.st_mtime && st_tmp.st_atime > atime) + atime = st_tmp.st_atime; + if (st_tmp.st_mtime > mtime) + mtime = st_tmp.st_mtime; + } + closedir(dd); + } + +/* if (atime) */ /* Set atime even if cur/ is empty */ + st_ret.st_atime = atime; + if (mtime) + st_ret.st_mtime = mtime; + + *st = st_ret_last = st_ret; + return 0; +} diff --git a/lib/sh/makepath.c b/lib/sh/makepath.c new file mode 100644 index 0000000..ab46c96 --- /dev/null +++ b/lib/sh/makepath.c @@ -0,0 +1,128 @@ +/* makepath.c - glue PATH and DIR together into a full pathname. */ + +/* Copyright (C) 1987-2020 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#if defined (HAVE_UNISTD_H) +# ifdef _MINIX +# include <sys/types.h> +# endif +# include <unistd.h> +#endif + +#include <bashansi.h> +#include "shell.h" + +#include <tilde/tilde.h> + +#ifndef NULL +# define NULL 0 +#endif + +/* MAKE SURE THESE AGREE WITH ../../externs.h. */ + +#ifndef MP_DOTILDE +# define MP_DOTILDE 0x01 +# define MP_DOCWD 0x02 +# define MP_RMDOT 0x04 +# define MP_IGNDOT 0x08 +#endif + +extern char *get_working_directory PARAMS((char *)); + +static char *nullpath = ""; + +/* Take PATH, an element from, e.g., $CDPATH, and DIR, a directory name, + and paste them together into PATH/DIR. Tilde expansion is performed on + PATH if (flags & MP_DOTILDE) is non-zero. If PATH is NULL or the empty + string, it is converted to the current directory. A full pathname is + used if (flags & MP_DOCWD) is non-zero, otherwise `./' is used. If + (flags & MP_RMDOT) is non-zero, any `./' is removed from the beginning + of DIR. If (flags & MP_IGNDOT) is non-zero, a PATH that is "." or "./" + is ignored. */ + +#define MAKEDOT() \ + do { \ + xpath = (char *)xmalloc (2); \ + xpath[0] = '.'; \ + xpath[1] = '\0'; \ + pathlen = 1; \ + } while (0) + +char * +sh_makepath (path, dir, flags) + const char *path, *dir; + int flags; +{ + int dirlen, pathlen; + char *ret, *xpath, *xdir, *r, *s; + + if (path == 0 || *path == '\0') + { + if (flags & MP_DOCWD) + { + xpath = get_working_directory ("sh_makepath"); + if (xpath == 0) + { + ret = get_string_value ("PWD"); + if (ret) + xpath = savestring (ret); + } + if (xpath == 0) + MAKEDOT(); + else + pathlen = strlen (xpath); + } + else + MAKEDOT(); + } + else if ((flags & MP_IGNDOT) && path[0] == '.' && (path[1] == '\0' || + (path[1] == '/' && path[2] == '\0'))) + { + xpath = nullpath; + pathlen = 0; + } + else + { + xpath = ((flags & MP_DOTILDE) && *path == '~') ? bash_tilde_expand (path, 0) : (char *)path; + pathlen = strlen (xpath); + } + + xdir = (char *)dir; + dirlen = strlen (xdir); + if ((flags & MP_RMDOT) && dir[0] == '.' && dir[1] == '/') + { + xdir += 2; + dirlen -= 2; + } + + r = ret = (char *)xmalloc (2 + dirlen + pathlen); + s = xpath; + while (*s) + *r++ = *s++; + if (s > xpath && s[-1] != '/') + *r++ = '/'; + s = xdir; + while (*r++ = *s++) + ; + if (xpath != path && xpath != nullpath) + free (xpath); + return (ret); +} diff --git a/lib/sh/mbscasecmp.c b/lib/sh/mbscasecmp.c new file mode 100644 index 0000000..0ab9560 --- /dev/null +++ b/lib/sh/mbscasecmp.c @@ -0,0 +1,79 @@ +/* mbscasecmp - case-insensitive multibyte string comparison. */ + +/* Copyright (C) 2009-2015 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#if !defined (HAVE_MBSCASECMP) && defined (HANDLE_MULTIBYTE) + +#include <stdlib.h> +#include <stddef.h> +#include <string.h> + +#include <wchar.h> +#include <wctype.h> + +/* Compare MBS1 and MBS2 without regard to case. */ +int +mbscasecmp (mbs1, mbs2) + const char *mbs1; + const char *mbs2; +{ + int len1, len2, mb_cur_max; + wchar_t c1, c2, l1, l2; + + len1 = len2 = 0; + /* Reset multibyte characters to their initial state. */ + (void) mblen ((char *) NULL, 0); + + mb_cur_max = MB_CUR_MAX; + do + { + len1 = mbtowc (&c1, mbs1, mb_cur_max); + len2 = mbtowc (&c2, mbs2, mb_cur_max); + + if (len1 == 0) + return len2 == 0 ? 0 : -1; + else if (len2 == 0) + return 1; + else if (len1 > 0 && len2 < 0) + return -1; + else if (len1 < 0 && len2 > 0) + return 1; + else if (len1 < 0 && len2 < 0) + { + len1 = strlen (mbs1); + len2 = strlen (mbs2); + return (len1 == len2 ? memcmp (mbs1, mbs2, len1) + : ((len1 < len2) ? (memcmp (mbs1, mbs2, len1) > 0 ? 1 : -1) + : (memcmp (mbs1, mbs2, len2) >= 0 ? 1 : -1))); + } + + l1 = towlower (c1); + l2 = towlower (c2); + + mbs1 += len1; + mbs2 += len2; + } + while (l1 == l2); + + return l1 - l2; +} + +#endif diff --git a/lib/sh/mbschr.c b/lib/sh/mbschr.c new file mode 100644 index 0000000..639962d --- /dev/null +++ b/lib/sh/mbschr.c @@ -0,0 +1,91 @@ +/* mbschr.c - strchr(3) that handles multibyte characters. */ + +/* Copyright (C) 2002 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#ifdef HAVE_STDLIB_H +# include <stdlib.h> +#endif + +#include "bashansi.h" +#include "shmbutil.h" + +extern int locale_mb_cur_max; +extern int locale_utf8locale; + +#undef mbschr + +extern char *utf8_mbschr (const char *, int); /* XXX */ + +/* In some locales, the non-first byte of some multibyte characters have + the same value as some ascii character. Faced with these strings, a + legacy strchr() might return the wrong value. */ + +char * +#if defined (PROTOTYPES) +mbschr (const char *s, int c) +#else +mbschr (s, c) + const char *s; + int c; +#endif +{ +#if HANDLE_MULTIBYTE + char *pos; + mbstate_t state; + size_t strlength, mblength; + + if (locale_utf8locale && c < 0x80) + return (utf8_mbschr (s, c)); /* XXX */ + + /* The locale encodings with said weird property are BIG5, BIG5-HKSCS, + GBK, GB18030, SHIFT_JIS, and JOHAB. They exhibit the problem only + when c >= 0x30. We can therefore use the faster bytewise search if + c <= 0x30. */ + if ((unsigned char)c >= '0' && locale_mb_cur_max > 1) + { + pos = (char *)s; + memset (&state, '\0', sizeof(mbstate_t)); + strlength = strlen (s); + + while (strlength > 0) + { + if (is_basic (*pos)) + mblength = 1; + else + { + mblength = mbrlen (pos, strlength, &state); + if (mblength == (size_t)-2 || mblength == (size_t)-1 || mblength == (size_t)0) + mblength = 1; + } + + if (mblength == 1 && c == (unsigned char)*pos) + return pos; + + strlength -= mblength; + pos += mblength; + } + + return ((char *)NULL); + } + else +#endif + return (strchr (s, c)); +} diff --git a/lib/sh/mbscmp.c b/lib/sh/mbscmp.c new file mode 100644 index 0000000..c7c8443 --- /dev/null +++ b/lib/sh/mbscmp.c @@ -0,0 +1,77 @@ +/* mbscmp - multibyte string comparison. */ + +/* Copyright (C) 1995-2018 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#if !defined (HAVE_MBSCMP) && defined (HANDLE_MULTIBYTE) + +#include <stdlib.h> +#include <stddef.h> +#include <string.h> + +extern int locale_utf8locale; + +extern int utf8_mbscmp (const char *, const char *); + +/* Compare MBS1 and MBS2. */ +int +mbscmp (mbs1, mbs2) + const char *mbs1; + const char *mbs2; +{ + int len1, len2, mb_cur_max; + wchar_t c1, c2; + + len1 = len2 = 0; + /* Reset multibyte characters to their initial state. */ + (void) mblen ((char *) NULL, 0); + + mb_cur_max = MB_CUR_MAX; + do + { + len1 = mbtowc (&c1, mbs1, mb_cur_max); + len2 = mbtowc (&c2, mbs2, mb_cur_max); + + if (len1 == 0) + return len2 == 0 ? 0 : -1; + else if (len2 == 0) + return 1; + else if (len1 > 0 && len2 < 0) + return -1; + else if (len1 < 0 && len2 > 0) + return 1; + else if (len1 < 0 && len2 < 0) + { + len1 = strlen (mbs1); + len2 = strlen (mbs2); + return (len1 == len2 ? memcmp (mbs1, mbs2, len1) + : ((len1 < len2) ? (memcmp (mbs1, mbs2, len1) > 0 ? 1 : -1) + : (memcmp (mbs1, mbs2, len2) >= 0 ? 1 : -1))); + } + + mbs1 += len1; + mbs2 += len2; + } + while (c1 == c2); + + return c1 - c2; +} + +#endif diff --git a/lib/sh/memset.c b/lib/sh/memset.c new file mode 100644 index 0000000..4ebc418 --- /dev/null +++ b/lib/sh/memset.c @@ -0,0 +1,29 @@ +/* memset.c -- set an area of memory to a given value */ + +/* Copyright (C) 1991-2002 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +char * +memset (char *str, int c, unsigned int len) +{ + register char *st = str; + + while (len-- > 0) + *st++ = c; + return str; +} diff --git a/lib/sh/mktime.c b/lib/sh/mktime.c new file mode 100644 index 0000000..9ee675b --- /dev/null +++ b/lib/sh/mktime.c @@ -0,0 +1,438 @@ +/* mktime - convert struct tm to a time_t value */ + +/* Copyright (C) 1993-2020 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + Contributed by Paul Eggert (eggert@twinsun.com). + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ +/* Define this to have a standalone program to test this implementation of + mktime. */ +/* #define DEBUG 1 */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#ifdef _LIBC +# define HAVE_LIMITS_H 1 +# define HAVE_LOCALTIME_R 1 +# define STDC_HEADERS 1 +#endif + +/* Assume that leap seconds are possible, unless told otherwise. + If the host has a `zic' command with a `-L leapsecondfilename' option, + then it supports leap seconds; otherwise it probably doesn't. */ +#ifndef LEAP_SECONDS_POSSIBLE +#define LEAP_SECONDS_POSSIBLE 1 +#endif + +#ifndef VMS +#include <sys/types.h> /* Some systems define `time_t' here. */ +#endif +#include <time.h> + +#if HAVE_LIMITS_H +#include <limits.h> +#endif + +#include "bashansi.h" + +#if DEBUG_MKTIME +#include <stdio.h> +/* Make it work even if the system's libc has its own mktime routine. */ +#define mktime my_mktime +#endif /* DEBUG_MKTIME */ + +#ifndef PARAMS +#if defined (__GNUC__) || (defined (__STDC__) && __STDC__) +#define PARAMS(args) args +#else +#define PARAMS(args) () +#endif /* GCC. */ +#endif /* Not PARAMS. */ + +#ifndef CHAR_BIT +#define CHAR_BIT 8 +#endif + +#ifndef INT_MIN +#define INT_MIN (~0 << (sizeof (int) * CHAR_BIT - 1)) +#endif +#ifndef INT_MAX +#define INT_MAX (~0 - INT_MIN) +#endif + +/* True if the arithmetic type T is signed. */ +#define TYPE_SIGNED(t) (! ((t) 0 < (t) -1)) + +/* The maximum and minimum values for the integer type T. These + macros have undefined behavior if T is signed and has padding bits. + If this is a problem for you, please let us know how to fix it for + your host. */ +#define TYPE_MINIMUM(t) \ + ((t) (! TYPE_SIGNED (t) \ + ? (t) 0 \ + : ~ TYPE_MAXIMUM (t))) +#define TYPE_MAXIMUM(t) \ + ((t) (! TYPE_SIGNED (t) \ + ? (t) -1 \ + : ((((t) 1 << (sizeof (t) * CHAR_BIT - 2)) - 1) * 2 + 1))) + +#ifndef TIME_T_MIN +# define TIME_T_MIN TYPE_MINIMUM (time_t) +#endif +#ifndef TIME_T_MAX +# define TIME_T_MAX TYPE_MAXIMUM (time_t) +#endif + +#define TM_YEAR_BASE 1900 +#define EPOCH_YEAR 1970 + +#ifndef __isleap +/* Nonzero if YEAR is a leap year (every 4 years, + except every 100th isn't, and every 400th is). */ +#define __isleap(year) \ + ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0)) +#endif + +/* How many days come before each month (0-12). */ +const unsigned short int __mon_yday[2][13] = + { + /* Normal years. */ + { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 }, + /* Leap years. */ + { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 } + }; + +static time_t ydhms_tm_diff PARAMS ((int, int, int, int, int, const struct tm *)); +time_t __mktime_internal PARAMS ((struct tm *, + struct tm *(*) (const time_t *, struct tm *), + time_t *)); + + +static struct tm *my_localtime_r PARAMS ((const time_t *, struct tm *)); +static struct tm * +my_localtime_r (t, tp) + const time_t *t; + struct tm *tp; +{ + struct tm *l = localtime (t); + if (! l) + return 0; + *tp = *l; + return tp; +} + + +/* Yield the difference between (YEAR-YDAY HOUR:MIN:SEC) and (*TP), + measured in seconds, ignoring leap seconds. + YEAR uses the same numbering as TM->tm_year. + All values are in range, except possibly YEAR. + If overflow occurs, yield the low order bits of the correct answer. */ +static time_t +ydhms_tm_diff (year, yday, hour, min, sec, tp) + int year, yday, hour, min, sec; + const struct tm *tp; +{ + /* Compute intervening leap days correctly even if year is negative. + Take care to avoid int overflow. time_t overflow is OK, since + only the low order bits of the correct time_t answer are needed. + Don't convert to time_t until after all divisions are done, since + time_t might be unsigned. */ + int a4 = (year >> 2) + (TM_YEAR_BASE >> 2) - ! (year & 3); + int b4 = (tp->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (tp->tm_year & 3); + int a100 = a4 / 25 - (a4 % 25 < 0); + int b100 = b4 / 25 - (b4 % 25 < 0); + int a400 = a100 >> 2; + int b400 = b100 >> 2; + int intervening_leap_days = (a4 - b4) - (a100 - b100) + (a400 - b400); + time_t years = year - (time_t) tp->tm_year; + time_t days = (365 * years + intervening_leap_days + + (yday - tp->tm_yday)); + return (60 * (60 * (24 * days + (hour - tp->tm_hour)) + + (min - tp->tm_min)) + + (sec - tp->tm_sec)); +} + + +static time_t localtime_offset; + +/* Convert *TP to a time_t value. */ +time_t +mktime (tp) + struct tm *tp; +{ +#ifdef _LIBC + /* POSIX.1 8.1.1 requires that whenever mktime() is called, the + time zone names contained in the external variable `tzname' shall + be set as if the tzset() function had been called. */ + __tzset (); +#endif + + return __mktime_internal (tp, my_localtime_r, &localtime_offset); +} + +/* Convert *TP to a time_t value, inverting + the monotonic and mostly-unit-linear conversion function CONVERT. + Use *OFFSET to keep track of a guess at the offset of the result, + compared to what the result would be for UTC without leap seconds. + If *OFFSET's guess is correct, only one CONVERT call is needed. */ +time_t +__mktime_internal (tp, convert, offset) + struct tm *tp; + struct tm *(*convert) PARAMS ((const time_t *, struct tm *)); + time_t *offset; +{ + time_t t, dt, t0; + struct tm tm; + + /* The maximum number of probes (calls to CONVERT) should be enough + to handle any combinations of time zone rule changes, solar time, + and leap seconds. Posix.1 prohibits leap seconds, but some hosts + have them anyway. */ + int remaining_probes = 4; + + /* Time requested. Copy it in case CONVERT modifies *TP; this can + occur if TP is localtime's returned value and CONVERT is localtime. */ + int sec = tp->tm_sec; + int min = tp->tm_min; + int hour = tp->tm_hour; + int mday = tp->tm_mday; + int mon = tp->tm_mon; + int year_requested = tp->tm_year; + int isdst = tp->tm_isdst; + + /* Ensure that mon is in range, and set year accordingly. */ + int mon_remainder = mon % 12; + int negative_mon_remainder = mon_remainder < 0; + int mon_years = mon / 12 - negative_mon_remainder; + int year = year_requested + mon_years; + + /* The other values need not be in range: + the remaining code handles minor overflows correctly, + assuming int and time_t arithmetic wraps around. + Major overflows are caught at the end. */ + + /* Calculate day of year from year, month, and day of month. + The result need not be in range. */ + int yday = ((__mon_yday[__isleap (year + TM_YEAR_BASE)] + [mon_remainder + 12 * negative_mon_remainder]) + + mday - 1); + +#if LEAP_SECONDS_POSSIBLE + /* Handle out-of-range seconds specially, + since ydhms_tm_diff assumes every minute has 60 seconds. */ + int sec_requested = sec; + if (sec < 0) + sec = 0; + if (59 < sec) + sec = 59; +#endif + + /* Invert CONVERT by probing. First assume the same offset as last time. + Then repeatedly use the error to improve the guess. */ + + tm.tm_year = EPOCH_YEAR - TM_YEAR_BASE; + tm.tm_yday = tm.tm_hour = tm.tm_min = tm.tm_sec = 0; + t0 = ydhms_tm_diff (year, yday, hour, min, sec, &tm); + + for (t = t0 + *offset; + (dt = ydhms_tm_diff (year, yday, hour, min, sec, (*convert) (&t, &tm))); + t += dt) + if (--remaining_probes == 0) + return -1; + + /* Check whether tm.tm_isdst has the requested value, if any. */ + if (0 <= isdst && 0 <= tm.tm_isdst) + { + int dst_diff = (isdst != 0) - (tm.tm_isdst != 0); + if (dst_diff) + { + /* Move two hours in the direction indicated by the disagreement, + probe some more, and switch to a new time if found. + The largest known fallback due to daylight savings is two hours: + once, in Newfoundland, 1988-10-30 02:00 -> 00:00. */ + time_t ot = t - 2 * 60 * 60 * dst_diff; + while (--remaining_probes != 0) + { + struct tm otm; + if (! (dt = ydhms_tm_diff (year, yday, hour, min, sec, + (*convert) (&ot, &otm)))) + { + t = ot; + tm = otm; + break; + } + if ((ot += dt) == t) + break; /* Avoid a redundant probe. */ + } + } + } + + *offset = t - t0; + +#if LEAP_SECONDS_POSSIBLE + if (sec_requested != tm.tm_sec) + { + /* Adjust time to reflect the tm_sec requested, not the normalized value. + Also, repair any damage from a false match due to a leap second. */ + t += sec_requested - sec + (sec == 0 && tm.tm_sec == 60); + (*convert) (&t, &tm); + } +#endif + + if (TIME_T_MAX / INT_MAX / 366 / 24 / 60 / 60 < 3) + { + /* time_t isn't large enough to rule out overflows in ydhms_tm_diff, + so check for major overflows. A gross check suffices, + since if t has overflowed, it is off by a multiple of + TIME_T_MAX - TIME_T_MIN + 1. So ignore any component of + the difference that is bounded by a small value. */ + + double dyear = (double) year_requested + mon_years - tm.tm_year; + double dday = 366 * dyear + mday; + double dsec = 60 * (60 * (24 * dday + hour) + min) + sec_requested; + + if (TIME_T_MAX / 3 - TIME_T_MIN / 3 < (dsec < 0 ? - dsec : dsec)) + return -1; + } + + *tp = tm; + return t; +} + +#ifdef weak_alias +weak_alias (mktime, timelocal) +#endif + +#if DEBUG_MKTIME + +static int +not_equal_tm (a, b) + struct tm *a; + struct tm *b; +{ + return ((a->tm_sec ^ b->tm_sec) + | (a->tm_min ^ b->tm_min) + | (a->tm_hour ^ b->tm_hour) + | (a->tm_mday ^ b->tm_mday) + | (a->tm_mon ^ b->tm_mon) + | (a->tm_year ^ b->tm_year) + | (a->tm_mday ^ b->tm_mday) + | (a->tm_yday ^ b->tm_yday) + | (a->tm_isdst ^ b->tm_isdst)); +} + +static void +print_tm (tp) + struct tm *tp; +{ + printf ("%04d-%02d-%02d %02d:%02d:%02d yday %03d wday %d isdst %d", + tp->tm_year + TM_YEAR_BASE, tp->tm_mon + 1, tp->tm_mday, + tp->tm_hour, tp->tm_min, tp->tm_sec, + tp->tm_yday, tp->tm_wday, tp->tm_isdst); +} + +static int +check_result (tk, tmk, tl, tml) + time_t tk; + struct tm tmk; + time_t tl; + struct tm tml; +{ + if (tk != tl || not_equal_tm (&tmk, &tml)) + { + printf ("mktime ("); + print_tm (&tmk); + printf (")\nyields ("); + print_tm (&tml); + printf (") == %ld, should be %ld\n", (long) tl, (long) tk); + return 1; + } + + return 0; +} + +int +main (argc, argv) + int argc; + char **argv; +{ + int status = 0; + struct tm tm, tmk, tml; + time_t tk, tl; + char trailer; + + if ((argc == 3 || argc == 4) + && (sscanf (argv[1], "%d-%d-%d%c", + &tm.tm_year, &tm.tm_mon, &tm.tm_mday, &trailer) + == 3) + && (sscanf (argv[2], "%d:%d:%d%c", + &tm.tm_hour, &tm.tm_min, &tm.tm_sec, &trailer) + == 3)) + { + tm.tm_year -= TM_YEAR_BASE; + tm.tm_mon--; + tm.tm_isdst = argc == 3 ? -1 : atoi (argv[3]); + tmk = tm; + tl = mktime (&tmk); + tml = *localtime (&tl); + printf ("mktime returns %ld == ", (long) tl); + print_tm (&tmk); + printf ("\n"); + status = check_result (tl, tmk, tl, tml); + } + else if (argc == 4 || (argc == 5 && strcmp (argv[4], "-") == 0)) + { + time_t from = atol (argv[1]); + time_t by = atol (argv[2]); + time_t to = atol (argv[3]); + + if (argc == 4) + for (tl = from; tl <= to; tl += by) + { + tml = *localtime (&tl); + tmk = tml; + tk = mktime (&tmk); + status |= check_result (tk, tmk, tl, tml); + } + else + for (tl = from; tl <= to; tl += by) + { + /* Null benchmark. */ + tml = *localtime (&tl); + tmk = tml; + tk = tl; + status |= check_result (tk, tmk, tl, tml); + } + } + else + printf ("Usage:\ +\t%s YYYY-MM-DD HH:MM:SS [ISDST] # Test given time.\n\ +\t%s FROM BY TO # Test values FROM, FROM+BY, ..., TO.\n\ +\t%s FROM BY TO - # Do not test those values (for benchmark).\n", + argv[0], argv[0], argv[0]); + + return status; +} + +#endif /* DEBUG_MKTIME */ + +/* +Local Variables: +compile-command: "gcc -DDEBUG=1 -Wall -O -g mktime.c -o mktime" +End: +*/ diff --git a/lib/sh/netconn.c b/lib/sh/netconn.c new file mode 100644 index 0000000..e20f104 --- /dev/null +++ b/lib/sh/netconn.c @@ -0,0 +1,82 @@ +/* netconn.c -- is a particular file descriptor a network connection?. */ + +/* Copyright (C) 2002-2005 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#include <bashtypes.h> +#if ! defined(_MINIX) && defined (HAVE_SYS_FILE_H) +# include <sys/file.h> +#endif +#include <posixstat.h> +#include <filecntl.h> + +#include <errno.h> + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +/* The second and subsequent conditions must match those used to decide + whether or not to call getpeername() in isnetconn(). */ +#if defined (HAVE_SYS_SOCKET_H) && defined (HAVE_GETPEERNAME) && !defined (SVR4_2) +# include <sys/socket.h> +#endif + +/* Is FD a socket or network connection? */ +int +isnetconn (fd) + int fd; +{ +#if defined (HAVE_SYS_SOCKET_H) && defined (HAVE_GETPEERNAME) && !defined (SVR4_2) && !defined (__BEOS__) + int rv; + socklen_t l; + struct sockaddr sa; + + l = sizeof(sa); + rv = getpeername(fd, &sa, &l); + /* Posix.2 says getpeername can return these errors. */ + return ((rv < 0 && (errno == ENOTSOCK || errno == ENOTCONN || errno == EINVAL || errno == EBADF)) ? 0 : 1); +#else /* !HAVE_GETPEERNAME || SVR4_2 || __BEOS__ */ +# if defined (SVR4) || defined (SVR4_2) + /* Sockets on SVR4 and SVR4.2 are character special (streams) devices. */ + struct stat sb; + + if (isatty (fd)) + return (0); + if (fstat (fd, &sb) < 0) + return (0); +# if defined (S_ISFIFO) + if (S_ISFIFO (sb.st_mode)) + return (0); +# endif /* S_ISFIFO */ + return (S_ISCHR (sb.st_mode)); +# else /* !SVR4 && !SVR4_2 */ +# if defined (S_ISSOCK) && !defined (__BEOS__) + struct stat sb; + + if (fstat (fd, &sb) < 0) + return (0); + return (S_ISSOCK (sb.st_mode)); +# else /* !S_ISSOCK || __BEOS__ */ + return (0); +# endif /* !S_ISSOCK || __BEOS__ */ +# endif /* !SVR4 && !SVR4_2 */ +#endif /* !HAVE_GETPEERNAME || SVR4_2 || __BEOS__ */ +} diff --git a/lib/sh/netopen.c b/lib/sh/netopen.c new file mode 100644 index 0000000..ee0baf6 --- /dev/null +++ b/lib/sh/netopen.c @@ -0,0 +1,351 @@ +/* + * netopen.c -- functions to make tcp/udp connections + * + * Chet Ramey + * chet@ins.CWRU.Edu + */ + +/* Copyright (C) 1987-2020 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#if defined (HAVE_NETWORK) + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +#include <stdio.h> +#include <sys/types.h> + +#if defined (HAVE_SYS_SOCKET_H) +# include <sys/socket.h> +#endif + +#if defined (HAVE_NETINET_IN_H) +# include <netinet/in.h> +#endif + +#if defined (HAVE_NETDB_H) +# include <netdb.h> +#endif + +#if defined (HAVE_ARPA_INET_H) +# include <arpa/inet.h> +#endif + +#include <bashansi.h> +#include <bashintl.h> + +#include <errno.h> + +#include <shell.h> +#include <xmalloc.h> + +#ifndef errno +extern int errno; +#endif + +#if !defined (HAVE_INET_ATON) +extern int inet_aton PARAMS((const char *, struct in_addr *)); +#endif + +#ifndef HAVE_GETADDRINFO +static int _getaddr PARAMS((char *, struct in_addr *)); +static int _getserv PARAMS((char *, int, unsigned short *)); +static int _netopen4 PARAMS((char *, char *, int)); +#else /* HAVE_GETADDRINFO */ +static int _netopen6 PARAMS((char *, char *, int)); +#endif + +static int _netopen PARAMS((char *, char *, int)); + +#ifndef HAVE_GETADDRINFO +/* Stuff the internet address corresponding to HOST into AP, in network + byte order. Return 1 on success, 0 on failure. */ + +static int +_getaddr (host, ap) + char *host; + struct in_addr *ap; +{ + struct hostent *h; + int r; + + r = 0; + if (host[0] >= '0' && host[0] <= '9') + { + /* If the first character is a digit, guess that it's an + Internet address and return immediately if inet_aton succeeds. */ + r = inet_aton (host, ap); + if (r) + return r; + } +#if !defined (HAVE_GETHOSTBYNAME) + return 0; +#else + h = gethostbyname (host); + if (h && h->h_addr) + { + bcopy(h->h_addr, (char *)ap, h->h_length); + return 1; + } +#endif + return 0; + +} + +/* Return 1 if SERV is a valid port number and stuff the converted value into + PP in network byte order. */ +static int +_getserv (serv, proto, pp) + char *serv; + int proto; + unsigned short *pp; +{ + intmax_t l; + unsigned short s; + + if (legal_number (serv, &l)) + { + s = (unsigned short)(l & 0xFFFF); + if (s != l) + return (0); + s = htons (s); + if (pp) + *pp = s; + return 1; + } + else +#if defined (HAVE_GETSERVBYNAME) + { + struct servent *se; + + se = getservbyname (serv, (proto == 't') ? "tcp" : "udp"); + if (se == 0) + return 0; + if (pp) + *pp = se->s_port; /* ports returned in network byte order */ + return 1; + } +#else /* !HAVE_GETSERVBYNAME */ + return 0; +#endif /* !HAVE_GETSERVBYNAME */ +} + +/* + * Open a TCP or UDP connection to HOST on port SERV. Uses the + * traditional BSD mechanisms. Returns the connected socket or -1 on error. + */ +static int +_netopen4(host, serv, typ) + char *host, *serv; + int typ; +{ + struct in_addr ina; + struct sockaddr_in sin; + unsigned short p; + int s, e; + + if (_getaddr(host, &ina) == 0) + { + internal_error (_("%s: host unknown"), host); + errno = EINVAL; + return -1; + } + + if (_getserv(serv, typ, &p) == 0) + { + internal_error(_("%s: invalid service"), serv); + errno = EINVAL; + return -1; + } + + memset ((char *)&sin, 0, sizeof(sin)); + sin.sin_family = AF_INET; + sin.sin_port = p; + sin.sin_addr = ina; + + s = socket(AF_INET, (typ == 't') ? SOCK_STREAM : SOCK_DGRAM, 0); + if (s < 0) + { + sys_error ("socket"); + return (-1); + } + + if (connect (s, (struct sockaddr *)&sin, sizeof (sin)) < 0) + { + e = errno; + sys_error("connect"); + close(s); + errno = e; + return (-1); + } + + return(s); +} +#endif /* ! HAVE_GETADDRINFO */ + +#ifdef HAVE_GETADDRINFO +/* + * Open a TCP or UDP connection to HOST on port SERV. Uses getaddrinfo(3) + * which provides support for IPv6. Returns the connected socket or -1 + * on error. + */ +static int +_netopen6 (host, serv, typ) + char *host, *serv; + int typ; +{ + int s, e; + struct addrinfo hints, *res, *res0; + int gerr; + + memset ((char *)&hints, 0, sizeof (hints)); + /* XXX -- if problems with IPv6, set to PF_INET for IPv4 only */ +#ifdef DEBUG /* PF_INET is the one that works for me */ + hints.ai_family = PF_INET; +#else + hints.ai_family = PF_UNSPEC; +#endif + hints.ai_socktype = (typ == 't') ? SOCK_STREAM : SOCK_DGRAM; + + gerr = getaddrinfo (host, serv, &hints, &res0); + if (gerr) + { + if (gerr == EAI_SERVICE) + internal_error ("%s: %s", serv, gai_strerror (gerr)); + else + internal_error ("%s: %s", host, gai_strerror (gerr)); + errno = EINVAL; + return -1; + } + + for (res = res0; res; res = res->ai_next) + { + if ((s = socket (res->ai_family, res->ai_socktype, res->ai_protocol)) < 0) + { + if (res->ai_next) + continue; + sys_error ("socket"); + freeaddrinfo (res0); + return -1; + } + if (connect (s, res->ai_addr, res->ai_addrlen) < 0) + { + if (res->ai_next) + { + close (s); + continue; + } + e = errno; + sys_error ("connect"); + close (s); + freeaddrinfo (res0); + errno = e; + return -1; + } + freeaddrinfo (res0); + break; + } + return s; +} +#endif /* HAVE_GETADDRINFO */ + +/* + * Open a TCP or UDP connection to HOST on port SERV. Uses getaddrinfo(3) + * if available, falling back to the traditional BSD mechanisms otherwise. + * Returns the connected socket or -1 on error. + */ +static int +_netopen(host, serv, typ) + char *host, *serv; + int typ; +{ +#ifdef HAVE_GETADDRINFO + return (_netopen6 (host, serv, typ)); +#else + return (_netopen4 (host, serv, typ)); +#endif +} + +/* + * Open a TCP or UDP connection given a path like `/dev/tcp/host/port' to + * host `host' on port `port' and return the connected socket. + */ +int +netopen (path) + char *path; +{ + char *np, *s, *t; + int fd; + + np = (char *)xmalloc (strlen (path) + 1); + strcpy (np, path); + + s = np + 9; + t = strchr (s, '/'); + if (t == 0) + { + internal_error (_("%s: bad network path specification"), path); + free (np); + return -1; + } + *t++ = '\0'; + fd = _netopen (s, t, path[5]); + free (np); + + return fd; +} + +#if 0 +/* + * Open a TCP connection to host `host' on the port defined for service + * `serv' and return the connected socket. + */ +int +tcpopen (host, serv) + char *host, *serv; +{ + return (_netopen (host, serv, 't')); +} + +/* + * Open a UDP connection to host `host' on the port defined for service + * `serv' and return the connected socket. + */ +int +udpopen (host, serv) + char *host, *serv; +{ + return _netopen (host, serv, 'u'); +} +#endif + +#else /* !HAVE_NETWORK */ + +int +netopen (path) + char *path; +{ + internal_error (_("network operations not supported")); + return -1; +} + +#endif /* !HAVE_NETWORK */ diff --git a/lib/sh/oslib.c b/lib/sh/oslib.c new file mode 100644 index 0000000..65eb99d --- /dev/null +++ b/lib/sh/oslib.c @@ -0,0 +1,301 @@ +/* oslib.c - functions present only in some unix versions. */ + +/* Copyright (C) 1995,2010 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#include <bashtypes.h> +#if defined (HAVE_SYS_PARAM_H) +# include <sys/param.h> +#endif + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +#if defined (HAVE_LIMITS_H) +# include <limits.h> +#endif + +#include <posixstat.h> +#include <filecntl.h> +#include <bashansi.h> + +#if !defined (HAVE_KILLPG) +# include <signal.h> +#endif + +#include <stdio.h> +#include <errno.h> +#include <chartypes.h> + +#include <shell.h> + +#if !defined (errno) +extern int errno; +#endif /* !errno */ + +/* Make the functions strchr and strrchr if they do not exist. */ +#if !defined (HAVE_STRCHR) +char * +strchr (string, c) + char *string; + int c; +{ + register char *s; + + for (s = string; s && *s; s++) + if (*s == c) + return (s); + + return ((char *) NULL); +} + +char * +strrchr (string, c) + char *string; + int c; +{ + register char *s, *t; + + for (s = string, t = (char *)NULL; s && *s; s++) + if (*s == c) + t = s; + return (t); +} +#endif /* !HAVE_STRCHR */ + +#if !defined (HAVE_DUP2) || defined (DUP2_BROKEN) +/* Replacement for dup2 (), for those systems which either don't have it, + or supply one with broken behaviour. */ +int +dup2 (fd1, fd2) + int fd1, fd2; +{ + int saved_errno, r; + + /* If FD1 is not a valid file descriptor, then return immediately with + an error. */ + if (fcntl (fd1, F_GETFL, 0) == -1) + return (-1); + + if (fd2 < 0 || fd2 >= getdtablesize ()) + { + errno = EBADF; + return (-1); + } + + if (fd1 == fd2) + return (0); + + saved_errno = errno; + + (void) close (fd2); + r = fcntl (fd1, F_DUPFD, fd2); + + if (r >= 0) + errno = saved_errno; + else + if (errno == EINVAL) + errno = EBADF; + + /* Force the new file descriptor to remain open across exec () calls. */ + SET_OPEN_ON_EXEC (fd2); + return (r); +} +#endif /* !HAVE_DUP2 */ + +/* + * Return the total number of available file descriptors. + * + * On some systems, like 4.2BSD and its descendants, there is a system call + * that returns the size of the descriptor table: getdtablesize(). There are + * lots of ways to emulate this on non-BSD systems. + * + * On System V.3, this can be obtained via a call to ulimit: + * return (ulimit(4, 0L)); + * + * On other System V systems, NOFILE is defined in /usr/include/sys/param.h + * (this is what we assume below), so we can simply use it: + * return (NOFILE); + * + * On POSIX systems, there are specific functions for retrieving various + * configuration parameters: + * return (sysconf(_SC_OPEN_MAX)); + * + */ + +#if !defined (HAVE_GETDTABLESIZE) +int +getdtablesize () +{ +# if defined (_POSIX_VERSION) && defined (HAVE_SYSCONF) && defined (_SC_OPEN_MAX) + return (sysconf(_SC_OPEN_MAX)); /* Posix systems use sysconf */ +# else /* ! (_POSIX_VERSION && HAVE_SYSCONF && _SC_OPEN_MAX) */ +# if defined (ULIMIT_MAXFDS) + return (ulimit (4, 0L)); /* System V.3 systems use ulimit(4, 0L) */ +# else /* !ULIMIT_MAXFDS */ +# if defined (NOFILE) /* Other systems use NOFILE */ + return (NOFILE); +# else /* !NOFILE */ + return (20); /* XXX - traditional value is 20 */ +# endif /* !NOFILE */ +# endif /* !ULIMIT_MAXFDS */ +# endif /* ! (_POSIX_VERSION && _SC_OPEN_MAX) */ +} +#endif /* !HAVE_GETDTABLESIZE */ + +#if !defined (HAVE_BCOPY) +# if defined (bcopy) +# undef bcopy +# endif +void +bcopy (s,d,n) + char *d, *s; + int n; +{ + FASTCOPY (s, d, n); +} +#endif /* !HAVE_BCOPY */ + +#if !defined (HAVE_BZERO) +# if defined (bzero) +# undef bzero +# endif +void +bzero (s, n) + char *s; + int n; +{ + register int i; + register char *r; + + for (i = 0, r = s; i < n; i++) + *r++ = '\0'; +} +#endif + +#if !defined (HAVE_GETHOSTNAME) +# if defined (HAVE_UNAME) +# include <sys/utsname.h> +int +gethostname (name, namelen) + char *name; + int namelen; +{ + int i; + struct utsname ut; + + --namelen; + + uname (&ut); + i = strlen (ut.nodename) + 1; + strncpy (name, ut.nodename, i < namelen ? i : namelen); + name[namelen] = '\0'; + return (0); +} +# else /* !HAVE_UNAME */ +int +gethostname (name, namelen) + char *name; + int namelen; +{ + strncpy (name, "unknown", namelen); + name[namelen] = '\0'; + return 0; +} +# endif /* !HAVE_UNAME */ +#endif /* !HAVE_GETHOSTNAME */ + +#if !defined (HAVE_KILLPG) +int +killpg (pgrp, sig) + pid_t pgrp; + int sig; +{ + return (kill (-pgrp, sig)); +} +#endif /* !HAVE_KILLPG */ + +#if !defined (HAVE_MKFIFO) && defined (PROCESS_SUBSTITUTION) +int +mkfifo (path, mode) + char *path; + int mode; +{ +#if defined (S_IFIFO) + return (mknod (path, (mode | S_IFIFO), 0)); +#else /* !S_IFIFO */ + return (-1); +#endif /* !S_IFIFO */ +} +#endif /* !HAVE_MKFIFO && PROCESS_SUBSTITUTION */ + +#define DEFAULT_MAXGROUPS 64 + +int +getmaxgroups () +{ + static int maxgroups = -1; + + if (maxgroups > 0) + return maxgroups; + +#if defined (HAVE_SYSCONF) && defined (_SC_NGROUPS_MAX) + maxgroups = sysconf (_SC_NGROUPS_MAX); +#else +# if defined (NGROUPS_MAX) + maxgroups = NGROUPS_MAX; +# else /* !NGROUPS_MAX */ +# if defined (NGROUPS) + maxgroups = NGROUPS; +# else /* !NGROUPS */ + maxgroups = DEFAULT_MAXGROUPS; +# endif /* !NGROUPS */ +# endif /* !NGROUPS_MAX */ +#endif /* !HAVE_SYSCONF || !SC_NGROUPS_MAX */ + + if (maxgroups <= 0) + maxgroups = DEFAULT_MAXGROUPS; + + return maxgroups; +} + +long +getmaxchild () +{ + static long maxchild = -1L; + + if (maxchild > 0) + return maxchild; + +#if defined (HAVE_SYSCONF) && defined (_SC_CHILD_MAX) + maxchild = sysconf (_SC_CHILD_MAX); +#else +# if defined (CHILD_MAX) + maxchild = CHILD_MAX; +# else +# if defined (MAXUPRC) + maxchild = MAXUPRC; +# endif /* MAXUPRC */ +# endif /* CHILD_MAX */ +#endif /* !HAVE_SYSCONF || !_SC_CHILD_MAX */ + + return (maxchild); +} diff --git a/lib/sh/pathcanon.c b/lib/sh/pathcanon.c new file mode 100644 index 0000000..7d0df9f --- /dev/null +++ b/lib/sh/pathcanon.c @@ -0,0 +1,234 @@ +/* pathcanon.c -- canonicalize and manipulate pathnames. */ + +/* Copyright (C) 2000 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#include <bashtypes.h> +#if defined (HAVE_SYS_PARAM_H) +# include <sys/param.h> +#endif +#include <posixstat.h> + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +#include <filecntl.h> +#include <bashansi.h> +#include <stdio.h> +#include <chartypes.h> +#include <errno.h> + +#include "shell.h" + +#if !defined (errno) +extern int errno; +#endif + +#if defined (__CYGWIN__) +#include <sys/cygwin.h> + +static int +_is_cygdrive (path) + char *path; +{ + static char user[MAXPATHLEN]; + static char system[MAXPATHLEN]; + static int first_time = 1; + + /* If the path is the first part of a network path, treat it as + existing. */ + if (path[0] == '/' && path[1] == '/' && !strchr (path + 2, '/')) + return 1; + /* Otherwise check for /cygdrive prefix. */ + if (first_time) + { + char user_flags[MAXPATHLEN]; + char system_flags[MAXPATHLEN]; + /* Get the cygdrive info */ + cygwin_internal (CW_GET_CYGDRIVE_INFO, user, system, user_flags, system_flags); + first_time = 0; + } + return !strcasecmp (path, user) || !strcasecmp (path, system); +} +#endif /* __CYGWIN__ */ + +/* Return 1 if PATH corresponds to a directory. A function for debugging. */ +static int +_path_isdir (path) + char *path; +{ + int l; + struct stat sb; + + /* This should leave errno set to the correct value. */ + errno = 0; + l = stat (path, &sb) == 0 && S_ISDIR (sb.st_mode); +#if defined (__CYGWIN__) + if (l == 0) + l = _is_cygdrive (path); +#endif + return l; +} + +/* Canonicalize PATH, and return a new path. The new path differs from PATH + in that: + Multiple `/'s are collapsed to a single `/'. + Leading `./'s and trailing `/.'s are removed. + Trailing `/'s are removed. + Non-leading `../'s and trailing `..'s are handled by removing + portions of the path. */ + +/* Look for ROOTEDPATH, PATHSEP, DIRSEP, and ISDIRSEP in ../../general.h */ + +#define DOUBLE_SLASH(p) ((p[0] == '/') && (p[1] == '/') && p[2] != '/') + +char * +sh_canonpath (path, flags) + char *path; + int flags; +{ + char stub_char; + char *result, *p, *q, *base, *dotdot; + int rooted, double_slash_path; + + /* The result cannot be larger than the input PATH. */ + result = (flags & PATH_NOALLOC) ? path : savestring (path); + + /* POSIX.2 says to leave a leading `//' alone. On cygwin, we skip over any + leading `x:' (dos drive name). */ + if (rooted = ROOTEDPATH(path)) + { + stub_char = DIRSEP; +#if defined (__CYGWIN__) + base = (ISALPHA((unsigned char)result[0]) && result[1] == ':') ? result + 3 : result + 1; +#else + base = result + 1; +#endif + double_slash_path = DOUBLE_SLASH (path); + base += double_slash_path; + } + else + { + stub_char = '.'; +#if defined (__CYGWIN__) + base = (ISALPHA((unsigned char)result[0]) && result[1] == ':') ? result + 2 : result; +#else + base = result; +#endif + double_slash_path = 0; + } + + /* + * invariants: + * base points to the portion of the path we want to modify + * p points at beginning of path element we're considering. + * q points just past the last path element we wrote (no slash). + * dotdot points just past the point where .. cannot backtrack + * any further (no slash). + */ + p = q = dotdot = base; + + while (*p) + { + if (ISDIRSEP(p[0])) /* null element */ + p++; + else if(p[0] == '.' && PATHSEP(p[1])) /* . and ./ */ + p += 1; /* don't count the separator in case it is nul */ + else if (p[0] == '.' && p[1] == '.' && PATHSEP(p[2])) /* .. and ../ */ + { + p += 2; /* skip `..' */ + if (q > dotdot) /* can backtrack */ + { + if (flags & PATH_CHECKDOTDOT) + { + char c; + + /* Make sure what we have so far corresponds to a valid + path before we chop some of it off. */ + c = *q; + *q = '\0'; + if (_path_isdir (result) == 0) + { + if ((flags & PATH_NOALLOC) == 0) + free (result); + return ((char *)NULL); + } + *q = c; + } + + while (--q > dotdot && ISDIRSEP(*q) == 0) + ; + } + else if (rooted == 0) + { + /* /.. is / but ./../ is .. */ + if (q != base) + *q++ = DIRSEP; + *q++ = '.'; + *q++ = '.'; + dotdot = q; + } + } + else /* real path element */ + { + /* add separator if not at start of work portion of result */ + if (q != base) + *q++ = DIRSEP; + while (*p && (ISDIRSEP(*p) == 0)) + *q++ = *p++; + /* Check here for a valid directory with _path_isdir. */ + if (flags & PATH_CHECKEXISTS) + { + char c; + + /* Make sure what we have so far corresponds to a valid + path before we chop some of it off. */ + c = *q; + *q = '\0'; + if (_path_isdir (result) == 0) + { + if ((flags & PATH_NOALLOC) == 0) + free (result); + return ((char *)NULL); + } + *q = c; + } + } + } + + /* Empty string is really ``.'' or `/', depending on what we started with. */ + if (q == result) + *q++ = stub_char; + *q = '\0'; + + /* If the result starts with `//', but the original path does not, we + can turn the // into /. Because of how we set `base', this should never + be true, but it's a sanity check. */ + if (DOUBLE_SLASH(result) && double_slash_path == 0) + { + if (result[2] == '\0') /* short-circuit for bare `//' */ + result[1] = '\0'; + else + memmove (result, result + 1, strlen (result + 1) + 1); + } + + return (result); +} diff --git a/lib/sh/pathphys.c b/lib/sh/pathphys.c new file mode 100644 index 0000000..95b72f1 --- /dev/null +++ b/lib/sh/pathphys.c @@ -0,0 +1,296 @@ +/* pathphys.c -- return pathname with all symlinks expanded. */ + +/* Copyright (C) 2000-2020 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#include <bashtypes.h> +#if defined (HAVE_SYS_PARAM_H) +# include <sys/param.h> +#endif +#include <posixstat.h> + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +#include <filecntl.h> +#include <bashansi.h> +#include <stdio.h> +#include <chartypes.h> +#include <errno.h> + +#include "shell.h" + +#if !defined (MAXSYMLINKS) +# define MAXSYMLINKS 32 +#endif + +#if !defined (errno) +extern int errno; +#endif /* !errno */ + +extern char *get_working_directory PARAMS((char *)); + +static int +_path_readlink (path, buf, bufsiz) + char *path; + char *buf; + int bufsiz; +{ +#ifdef HAVE_READLINK + return readlink (path, buf, bufsiz); +#else + errno = EINVAL; + return -1; +#endif +} + +/* Look for ROOTEDPATH, PATHSEP, DIRSEP, and ISDIRSEP in ../../general.h */ + +#define DOUBLE_SLASH(p) ((p[0] == '/') && (p[1] == '/') && p[2] != '/') + +/* + * Return PATH with all symlinks expanded in newly-allocated memory. + * This always gets an absolute pathname. + */ + +char * +sh_physpath (path, flags) + char *path; + int flags; +{ + char tbuf[PATH_MAX+1], linkbuf[PATH_MAX+1]; + char *result, *p, *q, *qsave, *qbase, *workpath; + int double_slash_path, linklen, nlink; + + linklen = strlen (path); + +#if 0 + /* First sanity check -- punt immediately if the name is too long. */ + if (linklen >= PATH_MAX) + return (savestring (path)); +#endif + + nlink = 0; + q = result = (char *)xmalloc (PATH_MAX + 1); + + /* Even if we get something longer than PATH_MAX, we might be able to + shorten it, so we try. */ + if (linklen >= PATH_MAX) + workpath = savestring (path); + else + { + workpath = (char *)xmalloc (PATH_MAX + 1); + strcpy (workpath, path); + } + + /* This always gets an absolute pathname. */ + + /* POSIX.2 says to leave a leading `//' alone. On cygwin, we skip over any + leading `x:' (dos drive name). */ +#if defined (__CYGWIN__) + qbase = (ISALPHA((unsigned char)workpath[0]) && workpath[1] == ':') ? workpath + 3 : workpath + 1; +#else + qbase = workpath + 1; +#endif + double_slash_path = DOUBLE_SLASH (workpath); + qbase += double_slash_path; + + for (p = workpath; p < qbase; ) + *q++ = *p++; + qbase = q; + + /* + * invariants: + * qbase points to the portion of the result path we want to modify + * p points at beginning of path element we're considering. + * q points just past the last path element we wrote (no slash). + * + * XXX -- need to fix error checking for too-long pathnames + */ + + while (*p) + { + if (ISDIRSEP(p[0])) /* null element */ + p++; + else if(p[0] == '.' && PATHSEP(p[1])) /* . and ./ */ + p += 1; /* don't count the separator in case it is nul */ + else if (p[0] == '.' && p[1] == '.' && PATHSEP(p[2])) /* .. and ../ */ + { + p += 2; /* skip `..' */ + if (q > qbase) + { + while (--q > qbase && ISDIRSEP(*q) == 0) + ; + } + } + else /* real path element */ + { + /* add separator if not at start of work portion of result */ + qsave = q; + if (q != qbase) + *q++ = DIRSEP; + while (*p && (ISDIRSEP(*p) == 0)) + { + if (q - result >= PATH_MAX) + { +#ifdef ENAMETOOLONG + errno = ENAMETOOLONG; +#else + errno = EINVAL; +#endif + goto error; + } + + *q++ = *p++; + } + + *q = '\0'; + + linklen = _path_readlink (result, linkbuf, PATH_MAX); + if (linklen < 0) /* if errno == EINVAL, it's not a symlink */ + { + if (errno != EINVAL) + goto error; + continue; + } + + /* It's a symlink, and the value is in LINKBUF. */ + nlink++; + if (nlink > MAXSYMLINKS) + { +#ifdef ELOOP + errno = ELOOP; +#else + errno = EINVAL; +#endif +error: + free (result); + free (workpath); + return ((char *)NULL); + } + + linkbuf[linklen] = '\0'; + + /* If the new path length would overrun PATH_MAX, punt now. */ + if ((strlen (p) + linklen + 2) >= PATH_MAX) + { +#ifdef ENAMETOOLONG + errno = ENAMETOOLONG; +#else + errno = EINVAL; +#endif + goto error; + } + + /* Form the new pathname by copying the link value to a temporary + buffer and appending the rest of `workpath'. Reset p to point + to the start of the rest of the path. If the link value is an + absolute pathname, reset p, q, and qbase. If not, reset p + and q. */ + strcpy (tbuf, linkbuf); + tbuf[linklen] = '/'; + strcpy (tbuf + linklen, p); + strcpy (workpath, tbuf); + + if (ABSPATH(linkbuf)) + { + q = result; + /* Duplicating some code here... */ +#if defined (__CYGWIN__) + qbase = (ISALPHA((unsigned char)workpath[0]) && workpath[1] == ':') ? workpath + 3 : workpath + 1; +#else + qbase = workpath + 1; +#endif + double_slash_path = DOUBLE_SLASH (workpath); + qbase += double_slash_path; + + for (p = workpath; p < qbase; ) + *q++ = *p++; + qbase = q; + } + else + { + p = workpath; + q = qsave; + } + } + } + + *q = '\0'; + free (workpath); + + /* If the result starts with `//', but the original path does not, we + can turn the // into /. Because of how we set `qbase', this should never + be true, but it's a sanity check. */ + if (DOUBLE_SLASH(result) && double_slash_path == 0) + { + if (result[2] == '\0') /* short-circuit for bare `//' */ + result[1] = '\0'; + else + memmove (result, result + 1, strlen (result + 1) + 1); + } + + return (result); +} + +char * +sh_realpath (pathname, resolved) + const char *pathname; + char *resolved; +{ + char *tdir, *wd; + + if (pathname == 0 || *pathname == '\0') + { + errno = (pathname == 0) ? EINVAL : ENOENT; + return ((char *)NULL); + } + + if (ABSPATH (pathname) == 0) + { + wd = get_working_directory ("sh_realpath"); + if (wd == 0) + return ((char *)NULL); + tdir = sh_makepath (wd, (char *)pathname, 0); + free (wd); + } + else + tdir = savestring (pathname); + + wd = sh_physpath (tdir, 0); + free (tdir); + + if (resolved == 0) + return (wd); + + if (wd) + { + strncpy (resolved, wd, PATH_MAX - 1); + resolved[PATH_MAX - 1] = '\0'; + free (wd); + return resolved; + } + else + { + resolved[0] = '\0'; + return wd; + } +} diff --git a/lib/sh/random.c b/lib/sh/random.c new file mode 100644 index 0000000..1eaa71a --- /dev/null +++ b/lib/sh/random.c @@ -0,0 +1,240 @@ +/* random.c -- Functions for managing 16-bit and 32-bit random numbers. */ + +/* Copyright (C) 2020 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include "config.h" + +#include "bashtypes.h" + +#if defined (HAVE_SYS_RANDOM_H) +# include <sys/random.h> +#endif + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif +#include "filecntl.h" + +#include <stdio.h> +#include "bashansi.h" + +#include "shell.h" + +extern time_t shell_start_time; + +extern int last_random_value; + +static u_bits32_t intrand32 PARAMS((u_bits32_t)); +static u_bits32_t genseed PARAMS((void)); + +static u_bits32_t brand32 PARAMS((void)); +static void sbrand32 PARAMS((u_bits32_t)); +static void perturb_rand32 PARAMS((void)); + +/* The random number seed. You can change this by setting RANDOM. */ +static u_bits32_t rseed = 1; + +/* Returns a 32-bit pseudo-random number. */ +static u_bits32_t +intrand32 (last) + u_bits32_t last; +{ + /* Minimal Standard generator from + "Random number generators: good ones are hard to find", + Park and Miller, Communications of the ACM, vol. 31, no. 10, + October 1988, p. 1195. Filtered through FreeBSD. + + x(n+1) = 16807 * x(n) mod (m). + + We split up the calculations to avoid overflow. + + h = last / q; l = x - h * q; t = a * l - h * r + m = 2147483647, a = 16807, q = 127773, r = 2836 + + There are lots of other combinations of constants to use; look at + https://www.gnu.org/software/gsl/manual/html_node/Other-random-number-generators.html#Other-random-number-generators */ + + bits32_t h, l, t; + u_bits32_t ret; + + /* Can't seed with 0. */ + ret = (last == 0) ? 123459876 : last; + h = ret / 127773; + l = ret - (127773 * h); + t = 16807 * l - 2836 * h; + ret = (t < 0) ? t + 0x7fffffff : t; + + return (ret); +} + +static u_bits32_t +genseed () +{ + struct timeval tv; + u_bits32_t iv; + + gettimeofday (&tv, NULL); + iv = (u_bits32_t)seedrand; /* let the compiler truncate */ + iv = tv.tv_sec ^ tv.tv_usec ^ getpid () ^ getppid () ^ current_user.uid ^ iv; + return (iv); +} + +#define BASH_RAND_MAX 32767 /* 0x7fff - 16 bits */ + +/* Returns a pseudo-random number between 0 and 32767. */ +int +brand () +{ + unsigned int ret; + + rseed = intrand32 (rseed); + if (shell_compatibility_level > 50) + ret = (rseed >> 16) ^ (rseed & 65535); + else + ret = rseed; + return (ret & BASH_RAND_MAX); +} + +/* Set the random number generator seed to SEED. */ +void +sbrand (seed) + unsigned long seed; +{ + rseed = seed; + last_random_value = 0; +} + +void +seedrand () +{ + u_bits32_t iv; + + iv = genseed (); + sbrand (iv); +} + +static u_bits32_t rseed32 = 1073741823; +static int last_rand32; + +static int urandfd = -1; + +#define BASH_RAND32_MAX 0x7fffffff /* 32 bits */ + +/* Returns a 32-bit pseudo-random number between 0 and 4294967295. */ +static u_bits32_t +brand32 () +{ + u_bits32_t ret; + + rseed32 = intrand32 (rseed32); + return (rseed32 & BASH_RAND32_MAX); +} + +static void +sbrand32 (seed) + u_bits32_t seed; +{ + last_rand32 = rseed32 = seed; +} + +void +seedrand32 () +{ + u_bits32_t iv; + + iv = genseed (); + sbrand32 (iv); +} + +static void +perturb_rand32 () +{ + rseed32 ^= genseed (); +} + +/* Force another attempt to open /dev/urandom on the next call to get_urandom32 */ +void +urandom_close () +{ + if (urandfd >= 0) + close (urandfd); + urandfd = -1; +} + +#if !defined (HAVE_GETRANDOM) +/* Imperfect emulation of getrandom(2). */ +#ifndef GRND_NONBLOCK +# define GRND_NONBLOCK 1 +# define GRND_RANDOM 2 +#endif + +static ssize_t +getrandom (buf, len, flags) + void *buf; + size_t len; + unsigned int flags; +{ + int oflags; + ssize_t r; + static int urand_unavail = 0; + +#if HAVE_GETENTROPY + r = getentropy (buf, len); + return (r == 0) ? len : -1; +#endif + + if (urandfd == -1 && urand_unavail == 0) + { + oflags = O_RDONLY; + if (flags & GRND_NONBLOCK) + oflags |= O_NONBLOCK; + urandfd = open ("/dev/urandom", oflags, 0); + if (urandfd >= 0) + SET_CLOSE_ON_EXEC (urandfd); + else + { + urand_unavail = 1; + return -1; + } + } + if (urandfd >= 0 && (r = read (urandfd, buf, len)) == len) + return (r); + return -1; +} +#endif + +u_bits32_t +get_urandom32 () +{ + u_bits32_t ret; + + if (getrandom ((void *)&ret, sizeof (ret), GRND_NONBLOCK) == sizeof (ret)) + return (last_rand32 = ret); + +#if defined (HAVE_ARC4RANDOM) + ret = arc4random (); +#else + if (subshell_environment) + perturb_rand32 (); + do + ret = brand32 (); + while (ret == last_rand32); +#endif + return (last_rand32 = ret); +} diff --git a/lib/sh/rename.c b/lib/sh/rename.c new file mode 100644 index 0000000..e410b5e --- /dev/null +++ b/lib/sh/rename.c @@ -0,0 +1,76 @@ +/* + * rename - rename a file + */ + +/* Copyright (C) 1999 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#if !defined (HAVE_RENAME) + +#include <bashtypes.h> +#include <posixstat.h> + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif +#include <errno.h> + +#include <stdc.h> + +#ifndef errno +extern int errno; +#endif + +int +rename (from, to) + const char *from, *to; +{ + struct stat fb, tb; + + if (stat (from, &fb) < 0) + return -1; + + if (stat (to, &tb) < 0) + { + if (errno != ENOENT) + return -1; + } + else + { + if (fb.st_dev == tb.st_dev && fb.st_ino == tb.st_ino) + return 0; /* same file */ + if (unlink (to) < 0 && errno != ENOENT) + return -1; + } + + if (link (from, to) < 0) + return (-1); + + if (unlink (from) < 0 && errno != ENOENT) + { + int e = errno; + unlink (to); + errno = e; + return (-1); + } + + return (0); +} +#endif /* !HAVE_RENAME */ diff --git a/lib/sh/setlinebuf.c b/lib/sh/setlinebuf.c new file mode 100644 index 0000000..6473ddf --- /dev/null +++ b/lib/sh/setlinebuf.c @@ -0,0 +1,63 @@ +/* setlinebuf.c - line-buffer a stdio stream. */ + +/* Copyright (C) 1997 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#include <stdio.h> + +#include <xmalloc.h> + +#if defined (USING_BASH_MALLOC) +# define LBUF_BUFSIZE 1008 +#else +# define LBUF_BUFSIZE BUFSIZ +#endif + +/* Cause STREAM to buffer lines as opposed to characters or blocks. */ +int +sh_setlinebuf (stream) + FILE *stream; +{ + char *local_linebuf; + +#if !defined (HAVE_SETLINEBUF) && !defined (HAVE_SETVBUF) + return (0); +#endif + +#if defined (USING_BASH_MALLOC) + local_linebuf = (char *)xmalloc (LBUF_BUFSIZE); +#else + local_linebuf = (char *)NULL; +#endif + +#if defined (HAVE_SETVBUF) + +# if defined (SETVBUF_REVERSED) + return (setvbuf (stream, _IOLBF, local_linebuf, LBUF_BUFSIZE)); +# else /* !SETVBUF_REVERSED */ + return (setvbuf (stream, local_linebuf, _IOLBF, LBUF_BUFSIZE)); +# endif /* !SETVBUF_REVERSED */ +# else /* !HAVE_SETVBUF */ + + setlinebuf (stream); + return (0); + +#endif /* !HAVE_SETVBUF */ +} diff --git a/lib/sh/shmatch.c b/lib/sh/shmatch.c new file mode 100644 index 0000000..d6e7f90 --- /dev/null +++ b/lib/sh/shmatch.c @@ -0,0 +1,123 @@ +/* + * shmatch.c -- shell interface to posix regular expression matching. + */ + +/* Copyright (C) 2003-2015 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#if defined (HAVE_POSIX_REGEXP) + +#ifdef HAVE_UNISTD_H +# include <unistd.h> +#endif + +#include "bashansi.h" + +#include <stdio.h> +#include <regex.h> + +#include "shell.h" +#include "variables.h" +#include "externs.h" + +extern int glob_ignore_case, match_ignore_case; + +int +sh_regmatch (string, pattern, flags) + const char *string; + const char *pattern; + int flags; +{ + regex_t regex = { 0 }; + regmatch_t *matches; + int rflags; +#if defined (ARRAY_VARS) + SHELL_VAR *rematch; + ARRAY *amatch; + int subexp_ind; + char *subexp_str; + int subexp_len; +#endif + int result; + +#if defined (ARRAY_VARS) + rematch = (SHELL_VAR *)NULL; +#endif + + rflags = REG_EXTENDED; + if (match_ignore_case) + rflags |= REG_ICASE; +#if !defined (ARRAY_VARS) + rflags |= REG_NOSUB; +#endif + + if (regcomp (®ex, pattern, rflags)) + return 2; /* flag for printing a warning here. */ + +#if defined (ARRAY_VARS) + matches = (regmatch_t *)malloc (sizeof (regmatch_t) * (regex.re_nsub + 1)); +#else + matches = NULL; +#endif + + /* man regexec: NULL PMATCH ignored if NMATCH == 0 */ + if (regexec (®ex, string, matches ? regex.re_nsub + 1 : 0, matches, 0)) + result = EXECUTION_FAILURE; + else + result = EXECUTION_SUCCESS; /* match */ + +#if defined (ARRAY_VARS) + subexp_len = strlen (string) + 10; + subexp_str = malloc (subexp_len + 1); + + /* Store the parenthesized subexpressions in the array BASH_REMATCH. + Element 0 is the portion that matched the entire regexp. Element 1 + is the part that matched the first subexpression, and so on. */ + unbind_variable_noref ("BASH_REMATCH"); + rematch = make_new_array_variable ("BASH_REMATCH"); + amatch = array_cell (rematch); + + if (matches && (flags & SHMAT_SUBEXP) && result == EXECUTION_SUCCESS && subexp_str) + { + for (subexp_ind = 0; subexp_ind <= regex.re_nsub; subexp_ind++) + { + memset (subexp_str, 0, subexp_len); + strncpy (subexp_str, string + matches[subexp_ind].rm_so, + matches[subexp_ind].rm_eo - matches[subexp_ind].rm_so); + array_insert (amatch, subexp_ind, subexp_str); + } + } + +#if 0 + VSETATTR (rematch, att_readonly); +#endif + + free (subexp_str); + free (matches); +#endif /* ARRAY_VARS */ + + regfree (®ex); + + return result; +} + +#endif /* HAVE_POSIX_REGEXP */ diff --git a/lib/sh/shmbchar.c b/lib/sh/shmbchar.c new file mode 100644 index 0000000..f2f2582 --- /dev/null +++ b/lib/sh/shmbchar.c @@ -0,0 +1,137 @@ +/* Copyright (C) 2001, 2006, 2009, 2010, 2012, 2015-2018 Free Software Foundation, Inc. + + 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 3 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 <http://www.gnu.org/licenses/>. */ + + +#include <config.h> + +#if defined (HANDLE_MULTIBYTE) +#include <stdlib.h> +#include <limits.h> + +#include <errno.h> + +#include <shmbutil.h> +#include <shmbchar.h> + +#ifndef errno +extern int errno; +#endif + +#if IS_BASIC_ASCII + +/* Bit table of characters in the ISO C "basic character set". */ +const unsigned int is_basic_table [UCHAR_MAX / 32 + 1] = +{ + 0x00001a00, /* '\t' '\v' '\f' */ + 0xffffffef, /* ' '...'#' '%'...'?' */ + 0xfffffffe, /* 'A'...'Z' '[' '\\' ']' '^' '_' */ + 0x7ffffffe /* 'a'...'z' '{' '|' '}' '~' */ + /* The remaining bits are 0. */ +}; + +#endif /* IS_BASIC_ASCII */ + +extern int locale_utf8locale; + +extern char *utf8_mbsmbchar (const char *); +extern int utf8_mblen (const char *, size_t); + +/* Count the number of characters in S, counting multi-byte characters as a + single character. */ +size_t +mbstrlen (s) + const char *s; +{ + size_t clen, nc; + mbstate_t mbs = { 0 }, mbsbak = { 0 }; + int f, mb_cur_max; + + nc = 0; + mb_cur_max = MB_CUR_MAX; + while (*s && (clen = (f = is_basic (*s)) ? 1 : mbrlen(s, mb_cur_max, &mbs)) != 0) + { + if (MB_INVALIDCH(clen)) + { + clen = 1; /* assume single byte */ + mbs = mbsbak; + } + + if (f == 0) + mbsbak = mbs; + + s += clen; + nc++; + } + return nc; +} + +/* Return pointer to first multibyte char in S, or NULL if none. */ +/* XXX - if we know that the locale is UTF-8, we can just check whether or + not any byte has the eighth bit turned on */ +char * +mbsmbchar (s) + const char *s; +{ + char *t; + size_t clen; + mbstate_t mbs = { 0 }; + int mb_cur_max; + + if (locale_utf8locale) + return (utf8_mbsmbchar (s)); /* XXX */ + + mb_cur_max = MB_CUR_MAX; + for (t = (char *)s; *t; t++) + { + if (is_basic (*t)) + continue; + + if (locale_utf8locale) /* not used if above code active */ + clen = utf8_mblen (t, mb_cur_max); + else + clen = mbrlen (t, mb_cur_max, &mbs); + + if (clen == 0) + return 0; + if (MB_INVALIDCH(clen)) + continue; + + if (clen > 1) + return t; + } + return 0; +} + +int +sh_mbsnlen(src, srclen, maxlen) + const char *src; + size_t srclen; + int maxlen; +{ + int count; + int sind; + DECLARE_MBSTATE; + + for (sind = count = 0; src[sind]; ) + { + count++; /* number of multibyte characters */ + ADVANCE_CHAR (src, srclen, sind); + if (sind > maxlen) + break; + } + + return count; +} +#endif diff --git a/lib/sh/shquote.c b/lib/sh/shquote.c new file mode 100644 index 0000000..680f84e --- /dev/null +++ b/lib/sh/shquote.c @@ -0,0 +1,431 @@ +/* shquote - functions to quote and dequote strings */ + +/* Copyright (C) 1999-2020 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#if defined (HAVE_UNISTD_H) +# ifdef _MINIX +# include <sys/types.h> +# endif +# include <unistd.h> +#endif + +#include <stdio.h> +#include <stdc.h> + +#include "syntax.h" +#include <xmalloc.h> + +#include "shmbchar.h" +#include "shmbutil.h" + +extern char *ansic_quote PARAMS((char *, int, int *)); +extern int ansic_shouldquote PARAMS((const char *)); + +/* Default set of characters that should be backslash-quoted in strings */ +static const char bstab[256] = + { + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 1, 1, 0, 0, 0, 0, 0, /* TAB, NL */ + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + + 1, 1, 1, 0, 1, 0, 1, 1, /* SPACE, !, DQUOTE, DOL, AMP, SQUOTE */ + 1, 1, 1, 0, 1, 0, 0, 0, /* LPAR, RPAR, STAR, COMMA */ + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 1, 1, 0, 1, 1, /* SEMI, LESSTHAN, GREATERTHAN, QUEST */ + + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 1, 1, 1, 1, 0, /* LBRACK, BS, RBRACK, CARAT */ + + 1, 0, 0, 0, 0, 0, 0, 0, /* BACKQ */ + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 1, 1, 1, 0, 0, /* LBRACE, BAR, RBRACE */ + + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + }; + +/* **************************************************************** */ +/* */ +/* Functions for quoting strings to be re-read as input */ +/* */ +/* **************************************************************** */ + +/* Return a new string which is the single-quoted version of STRING. + Used by alias and trap, among others. */ +char * +sh_single_quote (string) + const char *string; +{ + register int c; + char *result, *r; + const char *s; + + result = (char *)xmalloc (3 + (4 * strlen (string))); + r = result; + + if (string[0] == '\'' && string[1] == 0) + { + *r++ = '\\'; + *r++ = '\''; + *r++ = 0; + return result; + } + + *r++ = '\''; + + for (s = string; s && (c = *s); s++) + { + *r++ = c; + + if (c == '\'') + { + *r++ = '\\'; /* insert escaped single quote */ + *r++ = '\''; + *r++ = '\''; /* start new quoted string */ + } + } + + *r++ = '\''; + *r = '\0'; + + return (result); +} + +/* Quote STRING using double quotes. Return a new string. */ +char * +sh_double_quote (string) + const char *string; +{ + register unsigned char c; + int mb_cur_max; + char *result, *r; + size_t slen; + const char *s, *send; + DECLARE_MBSTATE; + + slen = strlen (string); + send = string + slen; + mb_cur_max = MB_CUR_MAX; + + result = (char *)xmalloc (3 + (2 * strlen (string))); + r = result; + *r++ = '"'; + + for (s = string; s && (c = *s); s++) + { + /* Backslash-newline disappears within double quotes, so don't add one. */ + if ((sh_syntaxtab[c] & CBSDQUOTE) && c != '\n') + *r++ = '\\'; + +#if defined (HANDLE_MULTIBYTE) + if ((locale_utf8locale && (c & 0x80)) || + (locale_utf8locale == 0 && mb_cur_max > 1 && is_basic (c) == 0)) + { + COPY_CHAR_P (r, s, send); + s--; /* compensate for auto-increment in loop above */ + continue; + } +#endif + + /* Assume that the string will not be further expanded, so no need to + add CTLESC to protect CTLESC or CTLNUL. */ + *r++ = c; + } + + *r++ = '"'; + *r = '\0'; + + return (result); +} + +/* Turn S into a simple double-quoted string. If FLAGS is non-zero, quote + double quote characters in S with backslashes. */ +char * +sh_mkdoublequoted (s, slen, flags) + const char *s; + int slen, flags; +{ + char *r, *ret; + const char *send; + int rlen, mb_cur_max; + DECLARE_MBSTATE; + + send = s + slen; + mb_cur_max = flags ? MB_CUR_MAX : 1; + rlen = (flags == 0) ? slen + 3 : (2 * slen) + 1; + ret = r = (char *)xmalloc (rlen); + + *r++ = '"'; + while (*s) + { + if (flags && *s == '"') + *r++ = '\\'; + +#if defined (HANDLE_MULTIBYTE) + if (flags && ((locale_utf8locale && (*s & 0x80)) || + (locale_utf8locale == 0 && mb_cur_max > 1 && is_basic (*s) == 0))) + { + COPY_CHAR_P (r, s, send); + continue; + } +#endif + *r++ = *s++; + } + *r++ = '"'; + *r = '\0'; + + return ret; +} + +/* Remove backslashes that are quoting characters that are special between + double quotes. Return a new string. XXX - should this handle CTLESC + and CTLNUL? */ +char * +sh_un_double_quote (string) + char *string; +{ + register int c, pass_next; + char *result, *r, *s; + + r = result = (char *)xmalloc (strlen (string) + 1); + + for (pass_next = 0, s = string; s && (c = *s); s++) + { + if (pass_next) + { + *r++ = c; + pass_next = 0; + continue; + } + if (c == '\\' && (sh_syntaxtab[(unsigned char) s[1]] & CBSDQUOTE)) + { + pass_next = 1; + continue; + } + *r++ = c; + } + + *r = '\0'; + return result; +} + +/* Quote special characters in STRING using backslashes. Return a new + string. NOTE: if the string is to be further expanded, we need a + way to protect the CTLESC and CTLNUL characters. As I write this, + the current callers will never cause the string to be expanded without + going through the shell parser, which will protect the internal + quoting characters. TABLE, if set, points to a map of the ascii code + set with char needing to be backslash-quoted if table[char]==1. FLAGS, + if 1, causes tildes to be quoted as well. If FLAGS&2, backslash-quote + other shell blank characters. */ + +char * +sh_backslash_quote (string, table, flags) + char *string; + char *table; + int flags; +{ + int c, mb_cur_max; + size_t slen; + char *result, *r, *s, *backslash_table, *send; + DECLARE_MBSTATE; + + slen = strlen (string); + send = string + slen; + result = (char *)xmalloc (2 * slen + 1); + + backslash_table = table ? table : (char *)bstab; + mb_cur_max = MB_CUR_MAX; + + for (r = result, s = string; s && (c = *s); s++) + { +#if defined (HANDLE_MULTIBYTE) + /* XXX - isascii, even if is_basic(c) == 0 - works in most cases. */ + if (c >= 0 && c <= 127 && backslash_table[(unsigned char)c] == 1) + { + *r++ = '\\'; + *r++ = c; + continue; + } + if ((locale_utf8locale && (c & 0x80)) || + (locale_utf8locale == 0 && mb_cur_max > 1 && is_basic (c) == 0)) + { + COPY_CHAR_P (r, s, send); + s--; /* compensate for auto-increment in loop above */ + continue; + } +#endif + if (backslash_table[(unsigned char)c] == 1) + *r++ = '\\'; + else if (c == '#' && s == string) /* comment char */ + *r++ = '\\'; + else if ((flags&1) && c == '~' && (s == string || s[-1] == ':' || s[-1] == '=')) + /* Tildes are special at the start of a word or after a `:' or `=' + (technically unquoted, but it doesn't make a difference in practice) */ + *r++ = '\\'; + else if ((flags&2) && shellblank((unsigned char)c)) + *r++ = '\\'; + *r++ = c; + } + + *r = '\0'; + return (result); +} + +#if defined (PROMPT_STRING_DECODE) +/* Quote characters that get special treatment when in double quotes in STRING + using backslashes. Return a new string. */ +char * +sh_backslash_quote_for_double_quotes (string) + char *string; +{ + unsigned char c; + char *result, *r, *s, *send; + size_t slen; + int mb_cur_max; + DECLARE_MBSTATE; + + slen = strlen (string); + send = string + slen; + mb_cur_max = MB_CUR_MAX; + result = (char *)xmalloc (2 * slen + 1); + + for (r = result, s = string; s && (c = *s); s++) + { + /* Backslash-newline disappears within double quotes, so don't add one. */ + if ((sh_syntaxtab[c] & CBSDQUOTE) && c != '\n') + *r++ = '\\'; + /* I should probably use the CSPECL flag for these in sh_syntaxtab[] */ + else if (c == CTLESC || c == CTLNUL) + *r++ = CTLESC; /* could be '\\'? */ + +#if defined (HANDLE_MULTIBYTE) + if ((locale_utf8locale && (c & 0x80)) || + (locale_utf8locale == 0 && mb_cur_max > 1 && is_basic (c) == 0)) + { + COPY_CHAR_P (r, s, send); + s--; /* compensate for auto-increment in loop above */ + continue; + } +#endif + + *r++ = c; + } + + *r = '\0'; + return (result); +} +#endif /* PROMPT_STRING_DECODE */ + +char * +sh_quote_reusable (s, flags) + char *s; + int flags; +{ + char *ret; + + if (s == 0) + return s; + else if (*s == 0) + { + ret = (char *)xmalloc (3); + ret[0] = ret[1] = '\''; + ret[2] = '\0'; + } + else if (ansic_shouldquote (s)) + ret = ansic_quote (s, 0, (int *)0); + else if (flags) + ret = sh_backslash_quote (s, 0, 1); + else + ret = sh_single_quote (s); + + return ret; +} + +int +sh_contains_shell_metas (string) + const char *string; +{ + const char *s; + + for (s = string; s && *s; s++) + { + switch (*s) + { + case ' ': case '\t': case '\n': /* IFS white space */ + case '\'': case '"': case '\\': /* quoting chars */ + case '|': case '&': case ';': /* shell metacharacters */ + case '(': case ')': case '<': case '>': + case '!': case '{': case '}': /* reserved words */ + case '*': case '[': case '?': case ']': /* globbing chars */ + case '^': + case '$': case '`': /* expansion chars */ + return (1); + case '~': /* tilde expansion */ + if (s == string || s[-1] == '=' || s[-1] == ':') + return (1); + break; + case '#': + if (s == string) /* comment char */ + return (1); + /* FALLTHROUGH */ + default: + break; + } + } + + return (0); +} + +int +sh_contains_quotes (string) + const char *string; +{ + const char *s; + + for (s = string; s && *s; s++) + { + if (*s == '\'' || *s == '"' || *s == '\\') + return 1; + } + return 0; +} diff --git a/lib/sh/shtty.c b/lib/sh/shtty.c new file mode 100644 index 0000000..0433f5e --- /dev/null +++ b/lib/sh/shtty.c @@ -0,0 +1,330 @@ +/* + * shtty.c -- abstract interface to the terminal, focusing on capabilities. + */ + +/* Copyright (C) 1999 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#ifdef HAVE_UNISTD_H +# include <unistd.h> +#endif + +#include <shtty.h> + +static TTYSTRUCT ttin, ttout; +static int ttsaved = 0; + +int +ttgetattr(fd, ttp) +int fd; +TTYSTRUCT *ttp; +{ +#ifdef TERMIOS_TTY_DRIVER + return tcgetattr(fd, ttp); +#else +# ifdef TERMIO_TTY_DRIVER + return ioctl(fd, TCGETA, ttp); +# else + return ioctl(fd, TIOCGETP, ttp); +# endif +#endif +} + +int +ttsetattr(fd, ttp) +int fd; +TTYSTRUCT *ttp; +{ +#ifdef TERMIOS_TTY_DRIVER + return tcsetattr(fd, TCSADRAIN, ttp); +#else +# ifdef TERMIO_TTY_DRIVER + return ioctl(fd, TCSETAW, ttp); +# else + return ioctl(fd, TIOCSETN, ttp); +# endif +#endif +} + +void +ttsave() +{ + if (ttsaved) + return; + ttgetattr (0, &ttin); + ttgetattr (1, &ttout); + ttsaved = 1; +} + +void +ttrestore() +{ + if (ttsaved == 0) + return; + ttsetattr (0, &ttin); + ttsetattr (1, &ttout); + ttsaved = 0; +} + +/* Retrieve the internally-saved attributes associated with tty fd FD. */ +TTYSTRUCT * +ttattr (fd) + int fd; +{ + if (ttsaved == 0) + return ((TTYSTRUCT *)0); + if (fd == 0) + return &ttin; + else if (fd == 1) + return &ttout; + else + return ((TTYSTRUCT *)0); +} + +/* + * Change attributes in ttp so that when it is installed using + * ttsetattr, the terminal will be in one-char-at-a-time mode. + */ +int +tt_setonechar(ttp) + TTYSTRUCT *ttp; +{ +#if defined (TERMIOS_TTY_DRIVER) || defined (TERMIO_TTY_DRIVER) + + /* XXX - might not want this -- it disables erase and kill processing. */ + ttp->c_lflag &= ~ICANON; + + ttp->c_lflag |= ISIG; +# ifdef IEXTEN + ttp->c_lflag |= IEXTEN; +# endif + + ttp->c_iflag |= ICRNL; /* make sure we get CR->NL on input */ + ttp->c_iflag &= ~INLCR; /* but no NL->CR */ + +# ifdef OPOST + ttp->c_oflag |= OPOST; +# endif +# ifdef ONLCR + ttp->c_oflag |= ONLCR; +# endif +# ifdef OCRNL + ttp->c_oflag &= ~OCRNL; +# endif +# ifdef ONOCR + ttp->c_oflag &= ~ONOCR; +# endif +# ifdef ONLRET + ttp->c_oflag &= ~ONLRET; +# endif + + ttp->c_cc[VMIN] = 1; + ttp->c_cc[VTIME] = 0; + +#else + + ttp->sg_flags |= CBREAK; + +#endif + + return 0; +} + +/* Set the tty associated with FD and TTP into one-character-at-a-time mode */ +int +ttfd_onechar (fd, ttp) + int fd; + TTYSTRUCT *ttp; +{ + if (tt_setonechar(ttp) < 0) + return -1; + return (ttsetattr (fd, ttp)); +} + +/* Set the terminal into one-character-at-a-time mode */ +int +ttonechar () +{ + TTYSTRUCT tt; + + if (ttsaved == 0) + return -1; + tt = ttin; + return (ttfd_onechar (0, &tt)); +} + +/* + * Change attributes in ttp so that when it is installed using + * ttsetattr, the terminal will be in no-echo mode. + */ +int +tt_setnoecho(ttp) + TTYSTRUCT *ttp; +{ +#if defined (TERMIOS_TTY_DRIVER) || defined (TERMIO_TTY_DRIVER) + ttp->c_lflag &= ~(ECHO|ECHOK|ECHONL); +#else + ttp->sg_flags &= ~ECHO; +#endif + + return 0; +} + +/* Set the tty associated with FD and TTP into no-echo mode */ +int +ttfd_noecho (fd, ttp) + int fd; + TTYSTRUCT *ttp; +{ + if (tt_setnoecho (ttp) < 0) + return -1; + return (ttsetattr (fd, ttp)); +} + +/* Set the terminal into no-echo mode */ +int +ttnoecho () +{ + TTYSTRUCT tt; + + if (ttsaved == 0) + return -1; + tt = ttin; + return (ttfd_noecho (0, &tt)); +} + +/* + * Change attributes in ttp so that when it is installed using + * ttsetattr, the terminal will be in eight-bit mode (pass8). + */ +int +tt_seteightbit (ttp) + TTYSTRUCT *ttp; +{ +#if defined (TERMIOS_TTY_DRIVER) || defined (TERMIO_TTY_DRIVER) + ttp->c_iflag &= ~ISTRIP; + ttp->c_cflag |= CS8; + ttp->c_cflag &= ~PARENB; +#else + ttp->sg_flags |= ANYP; +#endif + + return 0; +} + +/* Set the tty associated with FD and TTP into eight-bit mode */ +int +ttfd_eightbit (fd, ttp) + int fd; + TTYSTRUCT *ttp; +{ + if (tt_seteightbit (ttp) < 0) + return -1; + return (ttsetattr (fd, ttp)); +} + +/* Set the terminal into eight-bit mode */ +int +tteightbit () +{ + TTYSTRUCT tt; + + if (ttsaved == 0) + return -1; + tt = ttin; + return (ttfd_eightbit (0, &tt)); +} + +/* + * Change attributes in ttp so that when it is installed using + * ttsetattr, the terminal will be in non-canonical input mode. + */ +int +tt_setnocanon (ttp) + TTYSTRUCT *ttp; +{ +#if defined (TERMIOS_TTY_DRIVER) || defined (TERMIO_TTY_DRIVER) + ttp->c_lflag &= ~ICANON; +#endif + + return 0; +} + +/* Set the tty associated with FD and TTP into non-canonical mode */ +int +ttfd_nocanon (fd, ttp) + int fd; + TTYSTRUCT *ttp; +{ + if (tt_setnocanon (ttp) < 0) + return -1; + return (ttsetattr (fd, ttp)); +} + +/* Set the terminal into non-canonical mode */ +int +ttnocanon () +{ + TTYSTRUCT tt; + + if (ttsaved == 0) + return -1; + tt = ttin; + return (ttfd_nocanon (0, &tt)); +} + +/* + * Change attributes in ttp so that when it is installed using + * ttsetattr, the terminal will be in cbreak, no-echo mode. + */ +int +tt_setcbreak(ttp) + TTYSTRUCT *ttp; +{ + if (tt_setonechar (ttp) < 0) + return -1; + return (tt_setnoecho (ttp)); +} + +/* Set the tty associated with FD and TTP into cbreak (no-echo, + one-character-at-a-time) mode */ +int +ttfd_cbreak (fd, ttp) + int fd; + TTYSTRUCT *ttp; +{ + if (tt_setcbreak (ttp) < 0) + return -1; + return (ttsetattr (fd, ttp)); +} + +/* Set the terminal into cbreak (no-echo, one-character-at-a-time) mode */ +int +ttcbreak () +{ + TTYSTRUCT tt; + + if (ttsaved == 0) + return -1; + tt = ttin; + return (ttfd_cbreak (0, &tt)); +} diff --git a/lib/sh/snprintf.c b/lib/sh/snprintf.c new file mode 100644 index 0000000..406a3a5 --- /dev/null +++ b/lib/sh/snprintf.c @@ -0,0 +1,2221 @@ +/* snprintf - formatted output to strings, with bounds checking and allocation */ + +/* + build a test version with + gcc -g -DDRIVER -I../.. -I../../include -o test-snprintf snprintf.c fmtu*long.o +*/ + +/* + Unix snprintf implementation. + derived from inetutils/libinetutils/snprintf.c Version 1.1 + + Copyright (C) 2001-2020 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. + + Original (pre-bash) Revision History: + + 1.1: + * added changes from Miles Bader + * corrected a bug with %f + * added support for %#g + * added more comments :-) + 1.0: + * supporting must ANSI syntaxic_sugars + 0.0: + * support %s %c %d + + THANKS(for the patches and ideas): + Miles Bader + Cyrille Rustom + Jacek Slabocewiz + Mike Parker(mouse) + +*/ + +/* + * Currently doesn't handle (and bash/readline doesn't use): + * * *M$ width, precision specifications + * * %N$ numbered argument conversions + * * support for `F' is imperfect with ldfallback(), since underlying + * printf may not handle it -- should ideally have another autoconf test + */ + +#define FLOATING_POINT + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +/* GCC 4.2 on Snow Leopard doesn't like the snprintf prototype */ +#if defined(DEBUG) && !defined (MACOSX) +# undef HAVE_SNPRINTF +# undef HAVE_ASPRINTF + +# define HAVE_SNPRINTF 0 +# define HAVE_ASPRINTF 0 +#endif + +#if defined(DRIVER) && !defined(HAVE_CONFIG_H) +#define HAVE_LONG_LONG +#define HAVE_LONG_DOUBLE +#ifdef __linux__ +#define HAVE_PRINTF_A_FORMAT +#endif +#define HAVE_ISINF_IN_LIBC +#define HAVE_ISNAN_IN_LIBC +#define PREFER_STDARG +#define HAVE_STRINGIZE +#define HAVE_LIMITS_H +#define HAVE_STDDEF_H +#define HAVE_LOCALE_H +#define intmax_t long +#endif + +#if !HAVE_SNPRINTF || !HAVE_ASPRINTF + +#include <bashtypes.h> + +#if defined(PREFER_STDARG) +# include <stdarg.h> +#else +# include <varargs.h> +#endif + +#ifdef HAVE_LIMITS_H +# include <limits.h> +#endif +#include <bashansi.h> +#ifdef HAVE_STDDEF_H +# include <stddef.h> +#endif +#include <chartypes.h> + +#ifdef HAVE_STDINT_H +# include <stdint.h> +#endif + +#ifdef FLOATING_POINT +# include <float.h> /* for manifest constants */ +# include <stdio.h> /* for sprintf */ +#endif + +#include <typemax.h> + +#ifdef HAVE_LOCALE_H +# include <locale.h> +#endif + +#include "stdc.h" +#include <shmbutil.h> + +#ifndef DRIVER +# include "shell.h" +#else +# define FL_PREFIX 0x01 /* add 0x, 0X, or 0 prefix as appropriate */ +# define FL_ADDBASE 0x02 /* add base# prefix to converted value */ +# define FL_HEXUPPER 0x04 /* use uppercase when converting to hex */ +# define FL_UNSIGNED 0x08 /* don't add any sign */ +extern char *fmtulong PARAMS((unsigned long int, int, char *, size_t, int)); +extern char *fmtullong PARAMS((unsigned long long int, int, char *, size_t, int)); +#endif + +#ifndef FREE +# define FREE(x) if (x) free (x) +#endif + +/* Bound on length of the string representing an integer value of type T. + Subtract one for the sign bit if T is signed; + 302 / 1000 is log10 (2) rounded up; + add one for integer division truncation; + add one more for a minus sign if t is signed. */ +#ifndef INT_STRLEN_BOUND +#define INT_STRLEN_BOUND(t) \ + ((sizeof (t) * CHAR_BIT - TYPE_SIGNED (t)) * 302 / 1000 \ + + 1 + TYPE_SIGNED (t)) +#endif + +/* conversion flags */ +#define PF_ALTFORM 0x00001 /* # */ +#define PF_HEXPREFIX 0x00002 /* 0[Xx] */ +#define PF_LADJUST 0x00004 /* - */ +#define PF_ZEROPAD 0x00008 /* 0 */ +#define PF_PLUS 0x00010 /* + */ +#define PF_SPACE 0x00020 /* ' ' */ +#define PF_THOUSANDS 0x00040 /* ' */ + +#define PF_DOT 0x00080 /* `.precision' */ +#define PF_STAR_P 0x00100 /* `*' after precision */ +#define PF_STAR_W 0x00200 /* `*' before or without precision */ + +/* length modifiers */ +#define PF_SIGNEDCHAR 0x00400 /* hh */ +#define PF_SHORTINT 0x00800 /* h */ +#define PF_LONGINT 0x01000 /* l */ +#define PF_LONGLONG 0x02000 /* ll */ +#define PF_LONGDBL 0x04000 /* L */ +#define PF_INTMAX_T 0x08000 /* j */ +#define PF_SIZE_T 0x10000 /* z */ +#define PF_PTRDIFF_T 0x20000 /* t */ + +#define PF_ALLOCBUF 0x40000 /* for asprintf, vasprintf */ + +#define PFM_SN 0x01 /* snprintf, vsnprintf */ +#define PFM_AS 0x02 /* asprintf, vasprintf */ + +#define ASBUFSIZE 128 + +#define x_digs "0123456789abcdef" +#define X_digs "0123456789ABCDEF" + +static char intbuf[INT_STRLEN_BOUND(unsigned long) + 1]; + +static int decpoint; +static int thoussep; +static char *grouping; + +/* + * For the FLOATING POINT FORMAT : + * the challenge was finding a way to + * manipulate the Real numbers without having + * to resort to mathematical function(it + * would require to link with -lm) and not + * going down to the bit pattern(not portable) + * + * so a number, a real is: + + real = integral + fraction + + integral = ... + a(2)*10^2 + a(1)*10^1 + a(0)*10^0 + fraction = b(1)*10^-1 + b(2)*10^-2 + ... + + where: + 0 <= a(i) => 9 + 0 <= b(i) => 9 + + from then it was simple math + */ + +/* + * size of the buffer for the integral part + * and the fraction part + */ +#define MAX_INT 99 + 1 /* 1 for the null */ +#define MAX_FRACT 307 + 1 + +/* + * These functions use static buffers to store the results, + * and so are not reentrant + */ +#define itoa(n) fmtulong(n, 10, intbuf, sizeof(intbuf), 0); +#define dtoa(n, p, f) numtoa(n, 10, p, f) + +#define SWAP_INT(a,b) {int t; t = (a); (a) = (b); (b) = t;} + +#define GETARG(type) (va_arg(args, type)) + +/* Macros that do proper sign extension and handle length modifiers. Used + for the integer conversion specifiers. */ +#define GETSIGNED(p) \ + (((p)->flags & PF_LONGINT) \ + ? GETARG (long) \ + : (((p)->flags & PF_SHORTINT) ? (long)(short)GETARG (int) \ + : (long)GETARG (int))) + +#define GETUNSIGNED(p) \ + (((p)->flags & PF_LONGINT) \ + ? GETARG (unsigned long) \ + : (((p)->flags & PF_SHORTINT) ? (unsigned long)(unsigned short)GETARG (int) \ + : (unsigned long)GETARG (unsigned int))) + + +#ifdef HAVE_LONG_DOUBLE +#define GETLDOUBLE(p) GETARG (long double) +#endif +#define GETDOUBLE(p) GETARG (double) + +#define SET_SIZE_FLAGS(p, type) \ + if (sizeof (type) > sizeof (int)) \ + (p)->flags |= PF_LONGINT; \ + if (sizeof (type) > sizeof (long)) \ + (p)->flags |= PF_LONGLONG; + +/* this struct holds everything we need */ +struct DATA +{ + int length; + char *base; /* needed for [v]asprintf */ + char *holder; + int counter; + const char *pf; + +/* FLAGS */ + int flags; + int justify; + int width, precision; + char pad; +}; + +/* the floating point stuff */ +#ifdef FLOATING_POINT +static double pow_10 PARAMS((int)); +static int log_10 PARAMS((double)); +static double integral PARAMS((double, double *)); +static char *numtoa PARAMS((double, int, int, char **)); +#endif + +static void init_data PARAMS((struct DATA *, char *, size_t, const char *, int)); +static void init_conv_flag PARAMS((struct DATA *)); + +/* for the format */ +#ifdef FLOATING_POINT +static void floating PARAMS((struct DATA *, double)); +static void exponent PARAMS((struct DATA *, double)); +#endif +static void number PARAMS((struct DATA *, unsigned long, int)); +#ifdef HAVE_LONG_LONG +static void lnumber PARAMS((struct DATA *, unsigned long long, int)); +#endif +static void pointer PARAMS((struct DATA *, unsigned long)); +static void strings PARAMS((struct DATA *, char *)); + +#ifdef FLOATING_POINT +# define FALLBACK_FMTSIZE 32 +# define FALLBACK_BASE 4096 +# define LFALLBACK_BASE 5120 +# ifdef HAVE_LONG_DOUBLE +static void ldfallback PARAMS((struct DATA *, const char *, const char *, long double)); +# endif +static void dfallback PARAMS((struct DATA *, const char *, const char *, double)); +#endif + +static char *groupnum PARAMS((char *)); + +#if defined (HAVE_LONG_DOUBLE) +# define LONGDOUBLE long double +#else +# define LONGDOUBLE double +#endif + +#ifndef isnan + static inline int isnan_f (float x) { return x != x; } + static inline int isnan_d (double x) { return x != x; } + static inline int isnan_ld (LONGDOUBLE x) { return x != x; } + # define isnan(x) \ + (sizeof (x) == sizeof (LONGDOUBLE) ? isnan_ld (x) \ + : sizeof (x) == sizeof (double) ? isnan_d (x) \ + : isnan_f (x)) +#endif + +#ifndef isinf + static inline int isinf_f (float x) { return !isnan (x) && isnan (x - x); } + static inline int isinf_d (double x) { return !isnan (x) && isnan (x - x); } + static inline int isinf_ld (LONGDOUBLE x) { return !isnan (x) && isnan (x - x); } + # define isinf(x) \ + (sizeof (x) == sizeof (LONGDOUBLE) ? isinf_ld (x) \ + : sizeof (x) == sizeof (double) ? isinf_d (x) \ + : isinf_f (x)) +#endif + +#ifdef DRIVER +static void memory_error_and_abort (); +static void *xmalloc PARAMS((size_t)); +static void *xrealloc PARAMS((void *, size_t)); +static void xfree PARAMS((void *)); +#else +# include <xmalloc.h> +#endif + +/* those are defines specific to snprintf to hopefully + * make the code clearer :-) + */ +#define RIGHT 1 +#define LEFT 0 +#define NOT_FOUND -1 +#define FOUND 1 +#define MAX_FIELD 15 + +/* round off to the precision */ +#define ROUND(d, p) \ + (d < 0.) ? \ + d - pow_10(-(p)->precision) * 0.5 : \ + d + pow_10(-(p)->precision) * 0.5 + +/* set default precision */ +#define DEF_PREC(p) \ + if ((p)->precision == NOT_FOUND) \ + (p)->precision = 6 + +/* put a char. increment the number of chars written even if we've exceeded + the vsnprintf/snprintf buffer size (for the return value) */ +#define PUT_CHAR(c, p) \ + do \ + { \ + if (((p)->flags & PF_ALLOCBUF) && ((p)->counter >= (p)->length - 1)) \ + { \ + (p)->length += ASBUFSIZE; \ + (p)->base = (char *)xrealloc((p)->base, (p)->length); \ + (p)->holder = (p)->base + (p)->counter; /* in case reallocated */ \ + } \ + if ((p)->counter < (p)->length) \ + *(p)->holder++ = (c); \ + (p)->counter++; \ + } \ + while (0) + +/* Output a string. P->WIDTH has already been adjusted for padding. */ +#define PUT_STRING(string, len, p) \ + do \ + { \ + PAD_RIGHT (p); \ + while ((len)-- > 0) \ + { \ + PUT_CHAR (*(string), (p)); \ + (string)++; \ + } \ + PAD_LEFT (p); \ + } \ + while (0) + +#define PUT_PLUS(d, p, zero) \ + if (((p)->flags & PF_PLUS) && (d) > zero) \ + PUT_CHAR('+', p) + +#define PUT_SPACE(d, p, zero) \ + if (((p)->flags & PF_SPACE) && (d) > zero) \ + PUT_CHAR(' ', p) + +/* pad right */ +#define PAD_RIGHT(p) \ + if ((p)->width > 0 && (p)->justify != LEFT) \ + for (; (p)->width > 0; (p)->width--) \ + PUT_CHAR((p)->pad, p) + +/* pad left */ +#define PAD_LEFT(p) \ + if ((p)->width > 0 && (p)->justify == LEFT) \ + for (; (p)->width > 0; (p)->width--) \ + PUT_CHAR((p)->pad, p) + +/* pad with zeros from decimal precision */ +#define PAD_ZERO(p) \ + if ((p)->precision > 0) \ + for (; (p)->precision > 0; (p)->precision--) \ + PUT_CHAR('0', p) + +/* if width and prec. in the args */ +#define STAR_ARGS(p) \ + do { \ + if ((p)->flags & PF_STAR_W) \ + { \ + (p)->width = GETARG (int); \ + if ((p)->width < 0) \ + { \ + (p)->flags |= PF_LADJUST; \ + (p)->justify = LEFT; \ + (p)->width = -(p)->width; \ + } \ + } \ + if ((p)->flags & PF_STAR_P) \ + { \ + (p)->precision = GETARG (int); \ + if ((p)->precision < 0) \ + { \ + (p)->flags &= ~PF_STAR_P; \ + (p)->precision = NOT_FOUND; \ + } \ + } \ + } while (0) + +#if defined (HAVE_LOCALE_H) && defined (HAVE_LOCALECONV) +# define GETLOCALEDATA(d, t, g) \ + do \ + { \ + struct lconv *lv; \ + if ((d) == 0) { \ + (d) = '.'; (t) = -1; (g) = 0; /* defaults */ \ + lv = localeconv(); \ + if (lv) \ + { \ + if (lv->decimal_point && lv->decimal_point[0]) \ + (d) = lv->decimal_point[0]; \ + if (lv->thousands_sep && lv->thousands_sep[0]) \ + (t) = lv->thousands_sep[0]; \ + (g) = lv->grouping ? lv->grouping : ""; \ + if (*(g) == '\0' || *(g) == CHAR_MAX || (t) == -1) (g) = 0; \ + } \ + } \ + } \ + while (0); +#else +# define GETLOCALEDATA(d, t, g) \ + ( (d) = '.', (t) = ',', g = "\003" ) +#endif + +#ifdef FLOATING_POINT +/* + * Find the nth power of 10 + */ +static double +pow_10(n) + int n; +{ + double P; + + /* handle common cases with fast switch statement. */ + switch (n) + { + case -3: return .001; + case -2: return .01; + case -1: return .1; + case 0: return 1.; + case 1: return 10.; + case 2: return 100.; + case 3: return 1000.; + } + + if (n < 0) + { + P = .0001; + for (n += 4; n < 0; n++) + P /= 10.; + } + else + { + P = 10000.; + for (n -= 4; n > 0; n--) + P *= 10.; + } + + return P; +} + +/* + * Find the integral part of the log in base 10 + * Note: this not a real log10() + I just need and approximation(integerpart) of x in: + 10^x ~= r + * log_10(200) = 2; + * log_10(250) = 2; + * + * NOTE: do not call this with r == 0 -- an infinite loop results. + */ +static int +log_10(r) + double r; +{ + int i = 0; + double result = 1.; + + if (r < 0.) + r = -r; + + if (r < 1.) + { + while (result >= r) + { + result /= 10.; + i++; + } + return (-i); + } + else + { + while (result <= r) + { + result *= 10.; + i++; + } + return (i - 1); + } +} + +/* + * This function return the fraction part of a double + * and set in ip the integral part. + * In many ways it resemble the modf() found on most Un*x + */ +static double +integral(real, ip) + double real; + double *ip; +{ + int j; + double i, s, p; + double real_integral = 0.; + + /* take care of the obvious */ + /* equal to zero ? */ + if (real == 0.) + { + *ip = 0.; + return (0.); + } + + /* negative number ? */ + if (real < 0.) + real = -real; + + /* a fraction ? */ + if ( real < 1.) + { + *ip = 0.; + return real; + } + + /* the real work :-) */ + for (j = log_10(real); j >= 0; j--) + { + p = pow_10(j); + s = (real - real_integral)/p; + i = 0.; + while (i + 1. <= s) + i++; + real_integral += i*p; + } + *ip = real_integral; + return (real - real_integral); +} + +#define PRECISION 1.e-6 +/* + * return an ascii representation of the integral part of the number + * and set fract to be an ascii representation of the fraction part + * the container for the fraction and the integral part or statically + * declare with fix size + */ +static char * +numtoa(number, base, precision, fract) + double number; + int base, precision; + char **fract; +{ + register int i, j; + double ip, fp; /* integer and fraction part */ + double fraction; + int digits, sign; + static char integral_part[MAX_INT]; + static char fraction_part[MAX_FRACT]; + int ch; + + /* taking care of the obvious case: 0.0 */ + if (number == 0.) + { + integral_part[0] = '0'; + integral_part[1] = '\0'; + /* The fractional part has to take the precision into account */ + for (ch = 0; ch < precision-1; ch++) + fraction_part[ch] = '0'; + fraction_part[ch] = '0'; + fraction_part[ch+1] = '\0'; + if (fract) + *fract = fraction_part; + return integral_part; + } + + /* -0 is tricky */ + sign = (number == -0.) ? '-' : ((number < 0.) ? '-' : '+'); + digits = MAX_INT - 1; + + /* for negative numbers */ + if (sign == '-') + { + number = -number; + digits--; /* sign consume one digit */ + } + + fraction = integral(number, &ip); + number = ip; + + /* do the integral part */ + if (ip == 0.) + { + integral_part[0] = '0'; + i = 1; + } + else + { + for ( i = 0; i < digits && number != 0.; ++i) + { + number /= base; + fp = integral(number, &ip); + ch = (int)((fp + PRECISION)*base); /* force to round */ + integral_part[i] = (ch <= 9) ? ch + '0' : ch + 'a' - 10; + if (! ISXDIGIT((unsigned char)integral_part[i])) + break; /* bail out overflow !! */ + number = ip; + } + } + + /* Oh No !! out of bound, ho well fill it up ! */ + if (number != 0.) + for (i = 0; i < digits; ++i) + integral_part[i] = '9'; + + /* put the sign ? */ + if (sign == '-') + integral_part[i++] = '-'; + + integral_part[i] = '\0'; + + /* reverse every thing */ + for ( i--, j = 0; j < i; j++, i--) + SWAP_INT(integral_part[i], integral_part[j]); + + /* the fractional part */ + for (i=0, fp=fraction; precision > 0 && i < MAX_FRACT ; i++, precision--) + { + fraction_part[i] = (int)((fp + PRECISION)*10. + '0'); + if (! DIGIT(fraction_part[i])) /* underflow ? */ + break; + fp = (fp*10.0) - (double)(long)((fp + PRECISION)*10.); + } + fraction_part[i] = '\0'; + + if (fract != (char **)0) + *fract = fraction_part; + + return integral_part; +} +#endif + +/* for %d and friends, it puts in holder + * the representation with the right padding + */ +static void +number(p, d, base) + struct DATA *p; + unsigned long d; + int base; +{ + char *tmp, *t; + long sd; + int flags; + + /* An explicit precision turns off the zero-padding flag and sets the + pad character back to space. */ + if ((p->flags & PF_ZEROPAD) && p->precision >= 0 && (p->flags & PF_DOT)) + { + p->flags &= ~PF_ZEROPAD; + p->pad = ' '; + } + + sd = d; /* signed for ' ' padding in base 10 */ + flags = 0; + flags = (*p->pf == 'x' || *p->pf == 'X' || *p->pf == 'o' || *p->pf == 'u' || *p->pf == 'U') ? FL_UNSIGNED : 0; + if (*p->pf == 'X') + flags |= FL_HEXUPPER; + + tmp = fmtulong (d, base, intbuf, sizeof(intbuf), flags); + t = 0; + if ((p->flags & PF_THOUSANDS)) + { + GETLOCALEDATA(decpoint, thoussep, grouping); + if (grouping && (t = groupnum (tmp))) + tmp = t; + } + + /* need to add one for any `+', but we only add one in base 10 */ + p->width -= strlen(tmp) + (base == 10 && d > 0 && (p->flags & PF_PLUS)); + PAD_RIGHT(p); + + if ((p->flags & PF_DOT) && p->precision > 0) + { + p->precision -= strlen(tmp); + PAD_ZERO(p); + } + + switch (base) + { + case 10: + PUT_PLUS(sd, p, 0); + PUT_SPACE(sd, p, 0); + break; + case 8: + if (p->flags & PF_ALTFORM) + PUT_CHAR('0', p); + break; + case 16: + if (p->flags & PF_ALTFORM) + { + PUT_CHAR('0', p); + PUT_CHAR(*p->pf, p); + } + break; + } + + while (*tmp) + { + PUT_CHAR(*tmp, p); + tmp++; + } + + PAD_LEFT(p); + FREE (t); +} + +#ifdef HAVE_LONG_LONG +/* + * identical to number() but works for `long long' + */ +static void +lnumber(p, d, base) + struct DATA *p; + unsigned long long d; + int base; +{ + char *tmp, *t; + long long sd; + int flags; + + /* An explicit precision turns off the zero-padding flag and sets the + pad character back to space. */ + if ((p->flags & PF_ZEROPAD) && p->precision >= 0 && (p->flags & PF_DOT)) + { + p->flags &= ~PF_ZEROPAD; + p->pad = ' '; + } + + sd = d; /* signed for ' ' padding in base 10 */ + flags = (*p->pf == 'x' || *p->pf == 'X' || *p->pf == 'o' || *p->pf == 'u' || *p->pf == 'U') ? FL_UNSIGNED : 0; + if (*p->pf == 'X') + flags |= FL_HEXUPPER; + + tmp = fmtullong (d, base, intbuf, sizeof(intbuf), flags); + t = 0; + if ((p->flags & PF_THOUSANDS)) + { + GETLOCALEDATA(decpoint, thoussep, grouping); + if (grouping && (t = groupnum (tmp))) + tmp = t; + } + + /* need to add one for any `+', but we only add one in base 10 */ + p->width -= strlen(tmp) + (base == 10 && d > 0 && (p->flags & PF_PLUS)); + PAD_RIGHT(p); + + if ((p->flags & PF_DOT) && p->precision > 0) + { + p->precision -= strlen(tmp); + PAD_ZERO(p); + } + + switch (base) + { + case 10: + PUT_PLUS(sd, p, 0); + PUT_SPACE(sd, p, 0); + break; + case 8: + if (p->flags & PF_ALTFORM) + PUT_CHAR('0', p); + break; + case 16: + if (p->flags & PF_ALTFORM) + { + PUT_CHAR('0', p); + PUT_CHAR(*p->pf, p); + } + break; + } + + while (*tmp) + { + PUT_CHAR(*tmp, p); + tmp++; + } + + PAD_LEFT(p); + FREE (t); +} +#endif + +static void +pointer(p, d) + struct DATA *p; + unsigned long d; +{ + char *tmp; + + tmp = fmtulong(d, 16, intbuf, sizeof(intbuf), 0); + p->width -= strlen(tmp); + PAD_RIGHT(p); + + /* prefix '0x' for pointers */ + PUT_CHAR('0', p); + PUT_CHAR('x', p); + + while (*tmp) + { + PUT_CHAR(*tmp, p); + tmp++; + } + + PAD_LEFT(p); +} + +/* %s strings */ +static void +strings(p, tmp) + struct DATA *p; + char *tmp; +{ + size_t len; + + len = strlen(tmp); + if (p->precision != NOT_FOUND) /* the smallest number */ + len = (len < p->precision ? len : p->precision); + p->width -= len; + + PUT_STRING (tmp, len, p); +} + +#if HANDLE_MULTIBYTE +/* %ls wide-character strings */ +static void +wstrings(p, tmp) + struct DATA *p; + wchar_t *tmp; +{ + size_t len; + mbstate_t mbs; + char *os; + const wchar_t *ws; + + memset (&mbs, '\0', sizeof (mbstate_t)); + ws = (const wchar_t *)tmp; + + os = (char *)NULL; + if (p->precision != NOT_FOUND) + { + os = (char *)xmalloc (p->precision + 1); + len = wcsrtombs (os, &ws, p->precision, &mbs); + } + else + { + len = wcsrtombs (NULL, &ws, 0, &mbs); + if (len != (size_t)-1) + { + memset (&mbs, '\0', sizeof (mbstate_t)); + os = (char *)xmalloc (len + 1); + (void)wcsrtombs (os, &ws, len + 1, &mbs); + } + } + if (len == (size_t)-1) + { + /* invalid multibyte sequence; bail now. */ + FREE (os); + return; + } + + p->width -= len; + PUT_STRING (os, len, p); + free (os); +} + +static void +wchars (p, wc) + struct DATA *p; + wint_t wc; +{ + char *lbuf, *l; + mbstate_t mbs; + size_t len; + + lbuf = (char *)malloc (MB_CUR_MAX+1); + if (lbuf == 0) + return; + memset (&mbs, '\0', sizeof (mbstate_t)); + len = wcrtomb (lbuf, wc, &mbs); + if (len == (size_t)-1) + /* conversion failed; bail now. */ + return; + p->width -= len; + l = lbuf; + PUT_STRING (l, len, p); + free (lbuf); +} +#endif /* HANDLE_MULTIBYTE */ + +#ifdef FLOATING_POINT + +/* Check for [+-]infinity and NaN. If MODE == 1, we check for Infinity, else + (mode == 2) we check for NaN. This does the necessary printing. Returns + 1 if Inf or Nan, 0 if not. */ +static int +chkinfnan(p, d, mode) + struct DATA *p; + double d; + int mode; /* == 1 for inf, == 2 for nan */ +{ + int i; + char *tmp; + char *big, *small; + + i = (mode == 1) ? isinf(d) : isnan(d); + if (i == 0) + return 0; + big = (mode == 1) ? "INF" : "NAN"; + small = (mode == 1) ? "inf" : "nan"; + + tmp = (*p->pf == 'F' || *p->pf == 'G' || *p->pf == 'E') ? big : small; + + if (i < 0) + PUT_CHAR('-', p); + + while (*tmp) + { + PUT_CHAR (*tmp, p); + tmp++; + } + + return 1; +} + +/* %f %F %g %G floating point representation */ +static void +floating(p, d) + struct DATA *p; + double d; +{ + char *tmp, *tmp2, *t; + int i; + + if (d != 0 && (chkinfnan(p, d, 1) || chkinfnan(p, d, 2))) + return; /* already printed nan or inf */ + + GETLOCALEDATA(decpoint, thoussep, grouping); + DEF_PREC(p); + d = ROUND(d, p); + tmp = dtoa(d, p->precision, &tmp2); + t = 0; + if ((p->flags & PF_THOUSANDS) && grouping && (t = groupnum (tmp))) + tmp = t; + + if ((*p->pf == 'g' || *p->pf == 'G') && (p->flags & PF_ALTFORM) == 0) + { + /* smash the trailing zeros unless altform */ + for (i = strlen(tmp2) - 1; i >= 0 && tmp2[i] == '0'; i--) + tmp2[i] = '\0'; + if (tmp2[0] == '\0') + p->precision = 0; + } + + /* calculate the padding. 1 for the dot */ + p->width = p->width - + /* XXX - should this be d>0. && (p->flags & PF_PLUS) ? */ +#if 0 + ((d > 0. && p->justify == RIGHT) ? 1:0) - +#else + ((d > 0. && (p->flags & PF_PLUS)) ? 1:0) - +#endif + ((p->flags & PF_SPACE) ? 1:0) - + strlen(tmp) - p->precision - + ((p->precision != 0 || (p->flags & PF_ALTFORM)) ? 1 : 0); /* radix char */ + + if (p->pad == ' ') + { + PAD_RIGHT(p); + PUT_PLUS(d, p, 0.); + } + else + { + if (*tmp == '-') + PUT_CHAR(*tmp++, p); + PUT_PLUS(d, p, 0.); + PAD_RIGHT(p); + } + PUT_SPACE(d, p, 0.); + + while (*tmp) + { + PUT_CHAR(*tmp, p); /* the integral */ + tmp++; + } + FREE (t); + + if (p->precision != 0 || (p->flags & PF_ALTFORM)) + PUT_CHAR(decpoint, p); /* put the '.' */ + + for (; *tmp2; tmp2++) + PUT_CHAR(*tmp2, p); /* the fraction */ + + PAD_LEFT(p); +} + +/* %e %E %g %G exponent representation */ +static void +exponent(p, d) + struct DATA *p; + double d; +{ + char *tmp, *tmp2; + int j, i; + + if (d != 0 && (chkinfnan(p, d, 1) || chkinfnan(p, d, 2))) + return; /* already printed nan or inf */ + + GETLOCALEDATA(decpoint, thoussep, grouping); + DEF_PREC(p); + if (d == 0.) + j = 0; + else + { + j = log_10(d); + d = d / pow_10(j); /* get the Mantissa */ + d = ROUND(d, p); + } + tmp = dtoa(d, p->precision, &tmp2); + + /* 1 for unit, 1 for the '.', 1 for 'e|E', + * 1 for '+|-', 2 for 'exp' (but no `.' if precision == 0 */ + /* calculate how much padding need */ + p->width = p->width - + /* XXX - should this be d>0. && (p->flags & PF_PLUS) ? */ +#if 0 + ((d > 0. && p->justify == RIGHT) ? 1:0) - +#else + ((d > 0. && (p->flags & PF_PLUS)) ? 1:0) - +#endif + (p->precision != 0 || (p->flags & PF_ALTFORM)) - + ((p->flags & PF_SPACE) ? 1:0) - p->precision - 5; + + if (p->pad == ' ') + { + PAD_RIGHT(p); + PUT_PLUS(d, p, 0.); + } + else + { + if (*tmp == '-') + PUT_CHAR(*tmp++, p); + PUT_PLUS(d, p, 0.); + PAD_RIGHT(p); + } + PUT_SPACE(d, p, 0.); + + while (*tmp) + { + PUT_CHAR(*tmp, p); + tmp++; + } + + if (p->precision != 0 || (p->flags & PF_ALTFORM)) + PUT_CHAR(decpoint, p); /* the '.' */ + + if ((*p->pf == 'g' || *p->pf == 'G') && (p->flags & PF_ALTFORM) == 0) + /* smash the trailing zeros unless altform */ + for (i = strlen(tmp2) - 1; i >= 0 && tmp2[i] == '0'; i--) + tmp2[i] = '\0'; + + for (; *tmp2; tmp2++) + PUT_CHAR(*tmp2, p); /* the fraction */ + + /* the exponent put the 'e|E' */ + if (*p->pf == 'g' || *p->pf == 'e') + PUT_CHAR('e', p); + else + PUT_CHAR('E', p); + + /* the sign of the exp */ + if (j >= 0) + PUT_CHAR('+', p); + else + { + PUT_CHAR('-', p); + j = -j; + } + + tmp = itoa(j); + /* pad out to at least two spaces. pad with `0' if the exponent is a + single digit. */ + if (j <= 9) + PUT_CHAR('0', p); + + /* the exponent */ + while (*tmp) + { + PUT_CHAR(*tmp, p); + tmp++; + } + + PAD_LEFT(p); +} +#endif + +/* Return a new string with the digits in S grouped according to the locale's + grouping info and thousands separator. If no grouping should be performed, + this returns NULL; the caller needs to check for it. */ +static char * +groupnum (s) + char *s; +{ + char *se, *ret, *re, *g; + int len, slen; + + if (grouping == 0 || *grouping <= 0 || *grouping == CHAR_MAX) + return ((char *)NULL); + + /* find min grouping to size returned string */ + for (len = *grouping, g = grouping; *g; g++) + if (*g > 0 && *g < len) + len = *g; + + slen = strlen (s); + len = slen / len + 1; + ret = (char *)xmalloc (slen + len + 1); + re = ret + slen + len; + *re = '\0'; + + g = grouping; + se = s + slen; + len = *g; + + while (se > s) + { + *--re = *--se; + + /* handle `-' inserted by numtoa() and the fmtu* family here. */ + if (se > s && se[-1] == '-') + continue; + + /* begin new group. */ + if (--len == 0 && se > s) + { + *--re = thoussep; + len = *++g; /* was g++, but that uses first char twice (glibc bug, too) */ + if (*g == '\0') + len = *--g; /* use previous grouping */ + else if (*g == CHAR_MAX) + { + do + *--re = *--se; + while (se > s); + break; + } + } + } + + if (re > ret) +#ifdef HAVE_MEMMOVE + memmove (ret, re, strlen (re) + 1); +#else + strcpy (ret, re); +#endif + + return ret; +} + +/* initialize the conversion specifiers */ +static void +init_conv_flag (p) + struct DATA *p; +{ + p->flags &= PF_ALLOCBUF; /* preserve PF_ALLOCBUF flag */ + p->precision = p->width = NOT_FOUND; + p->justify = NOT_FOUND; + p->pad = ' '; +} + +static void +init_data (p, string, length, format, mode) + struct DATA *p; + char *string; + size_t length; + const char *format; + int mode; +{ + p->length = length - 1; /* leave room for '\0' */ + p->holder = p->base = string; + p->pf = format; + p->counter = 0; + p->flags = (mode == PFM_AS) ? PF_ALLOCBUF : 0; +} + +static int +#if defined (__STDC__) +vsnprintf_internal(struct DATA *data, char *string, size_t length, const char *format, va_list args) +#else +vsnprintf_internal(data, string, length, format, args) + struct DATA *data; + char *string; + size_t length; + const char *format; + va_list args; +#endif +{ + double d; /* temporary holder */ +#ifdef HAVE_LONG_DOUBLE + long double ld; /* for later */ +#endif + unsigned long ul; +#ifdef HAVE_LONG_LONG + unsigned long long ull; +#endif + int state, i, c, n; + char *s; +#if HANDLE_MULTIBYTE + wchar_t *ws; + wint_t wc; +#endif + const char *convstart; + int negprec; + + /* Sanity check, the string length must be >= 0. C99 actually says that + LENGTH can be zero here, in the case of snprintf/vsnprintf (it's never + 0 in the case of asprintf/vasprintf), and the return value is the number + of characters that would have been written. */ + if (length < 0) + return -1; + + if (format == 0) + return 0; + + /* Reset these for each call because the locale might have changed. */ + decpoint = thoussep = 0; + grouping = 0; + + negprec = 0; + for (; c = *(data->pf); data->pf++) + { + if (c != '%') + { + PUT_CHAR (c, data); + continue; + } + + convstart = data->pf; + init_conv_flag (data); /* initialise format flags */ + + state = 1; + for (state = 1; state && *data->pf; ) + { + c = *(++data->pf); + /* fmtend = data->pf */ +#if defined (FLOATING_POINT) && defined (HAVE_LONG_DOUBLE) + if (data->flags & PF_LONGDBL) + { + switch (c) + { + case 'f': case 'F': + case 'e': case 'E': + case 'g': case 'G': +# ifdef HAVE_PRINTF_A_FORMAT + case 'a': case 'A': +# endif + STAR_ARGS (data); + ld = GETLDOUBLE (data); + ldfallback (data, convstart, data->pf, ld); + goto conv_break; + } + } +#endif /* FLOATING_POINT && HAVE_LONG_DOUBLE */ + + switch (c) + { + /* Parse format flags */ + case '\0': /* a NULL here ? ? bail out */ + *data->holder = '\0'; + return data->counter; + break; + case '#': + data->flags |= PF_ALTFORM; + continue; + case '*': + if (data->flags & PF_DOT) + data->flags |= PF_STAR_P; + else + data->flags |= PF_STAR_W; + continue; + case '-': + if ((data->flags & PF_DOT) == 0) + { + data->flags |= PF_LADJUST; + data->justify = LEFT; + } + else + negprec = 1; + continue; + case ' ': + if ((data->flags & PF_PLUS) == 0) + data->flags |= PF_SPACE; + continue; + case '+': + if ((data->flags & PF_DOT) == 0) + { + data->flags |= PF_PLUS; + if ((data->flags & PF_LADJUST) == 0) + data->justify = RIGHT; + } + continue; + case '\'': + data->flags |= PF_THOUSANDS; + continue; + + case '0': + /* If we're not specifying precision (in which case we've seen + a `.') and we're not performing left-adjustment (in which + case the `0' is ignored), a `0' is taken as the zero-padding + flag. */ + if ((data->flags & (PF_DOT|PF_LADJUST)) == 0) + { + data->flags |= PF_ZEROPAD; + data->pad = '0'; + continue; + } + case '1': case '2': case '3': + case '4': case '5': case '6': + case '7': case '8': case '9': + n = 0; + do + { + n = n * 10 + TODIGIT(c); + c = *(++data->pf); + } + while (DIGIT(c)); + data->pf--; /* went too far */ + if (n < 0) + n = 0; + if (data->flags & PF_DOT) + data->precision = negprec ? NOT_FOUND : n; + else + data->width = n; + continue; + + /* optional precision */ + case '.': + data->flags |= PF_DOT; + data->precision = 0; + continue; + + /* length modifiers */ + case 'h': + data->flags |= (data->flags & PF_SHORTINT) ? PF_SIGNEDCHAR : PF_SHORTINT; + continue; + case 'l': + data->flags |= (data->flags & PF_LONGINT) ? PF_LONGLONG : PF_LONGINT; + continue; + case 'L': + data->flags |= PF_LONGDBL; + continue; + case 'q': + data->flags |= PF_LONGLONG; + continue; + case 'j': + data->flags |= PF_INTMAX_T; + SET_SIZE_FLAGS(data, intmax_t); + continue; + case 'z': + data->flags |= PF_SIZE_T; + SET_SIZE_FLAGS(data, size_t); + continue; + case 't': + data->flags |= PF_PTRDIFF_T; + SET_SIZE_FLAGS(data, ptrdiff_t); + continue; + + /* Conversion specifiers */ +#ifdef FLOATING_POINT + case 'f': /* float, double */ + case 'F': + STAR_ARGS(data); + d = GETDOUBLE(data); + floating(data, d); +conv_break: + state = 0; + break; + case 'g': + case 'G': + STAR_ARGS(data); + DEF_PREC(data); + d = GETDOUBLE(data); + i = (d != 0.) ? log_10(d) : -1; + /* + * for '%g|%G' ANSI: use f if exponent + * is in the range or [-4,p] exclusively + * else use %e|%E + */ + if (-4 < i && i < data->precision) + { + /* reset precision */ + data->precision -= i + 1; + floating(data, d); + } + else + { + /* reduce precision by 1 because of leading digit before + decimal point in e format, unless specified as 0. */ + if (data->precision > 0) + data->precision--; + exponent(data, d); + } + state = 0; + break; + case 'e': + case 'E': /* Exponent double */ + STAR_ARGS(data); + d = GETDOUBLE(data); + exponent(data, d); + state = 0; + break; +# ifdef HAVE_PRINTF_A_FORMAT + case 'a': + case 'A': + STAR_ARGS(data); + d = GETDOUBLE(data); + dfallback(data, convstart, data->pf, d); + state = 0; + break; +# endif /* HAVE_PRINTF_A_FORMAT */ +#endif /* FLOATING_POINT */ + case 'U': + data->flags |= PF_LONGINT; + /* FALLTHROUGH */ + case 'u': + STAR_ARGS(data); +#ifdef HAVE_LONG_LONG + if (data->flags & PF_LONGLONG) + { + ull = GETARG (unsigned long long); + lnumber(data, ull, 10); + } + else +#endif + { + ul = GETUNSIGNED(data); + number(data, ul, 10); + } + state = 0; + break; + case 'D': + data->flags |= PF_LONGINT; + /* FALLTHROUGH */ + case 'd': /* decimal */ + case 'i': + STAR_ARGS(data); +#ifdef HAVE_LONG_LONG + if (data->flags & PF_LONGLONG) + { + ull = GETARG (long long); + lnumber(data, ull, 10); + } + else +#endif + { + ul = GETSIGNED(data); + number(data, ul, 10); + } + state = 0; + break; + case 'o': /* octal */ + STAR_ARGS(data); +#ifdef HAVE_LONG_LONG + if (data->flags & PF_LONGLONG) + { + ull = GETARG (unsigned long long); + lnumber(data, ull, 8); + } + else +#endif + { + ul = GETUNSIGNED(data); + number(data, ul, 8); + } + state = 0; + break; + case 'x': + case 'X': /* hexadecimal */ + STAR_ARGS(data); +#ifdef HAVE_LONG_LONG + if (data->flags & PF_LONGLONG) + { + ull = GETARG (unsigned long long); + lnumber(data, ull, 16); + } + else +#endif + { + ul = GETUNSIGNED(data); + number(data, ul, 16); + } + state = 0; + break; + case 'p': + STAR_ARGS(data); + ul = (unsigned long)GETARG (void *); + pointer(data, ul); + state = 0; + break; +#if HANDLE_MULTIBYTE + case 'C': + data->flags |= PF_LONGINT; + /* FALLTHROUGH */ +#endif + case 'c': /* character */ + STAR_ARGS(data); +#if HANDLE_MULTIBYTE + if (data->flags & PF_LONGINT) + { + wc = GETARG (wint_t); + wchars (data, wc); + } + else +#endif + { + ul = GETARG (int); + PUT_CHAR(ul, data); + } + state = 0; + break; +#if HANDLE_MULTIBYTE + case 'S': + data->flags |= PF_LONGINT; + /* FALLTHROUGH */ +#endif + case 's': /* string */ + STAR_ARGS(data); +#if HANDLE_MULTIBYTE + if (data->flags & PF_LONGINT) + { + ws = GETARG (wchar_t *); + wstrings (data, ws); + } + else +#endif + { + s = GETARG (char *); + strings(data, s); + } + state = 0; + break; + case 'n': +#ifdef HAVE_LONG_LONG + if (data->flags & PF_LONGLONG) + *(GETARG (long long *)) = data->counter; + else +#endif + if (data->flags & PF_LONGINT) + *(GETARG (long *)) = data->counter; + else if (data->flags & PF_SHORTINT) + *(GETARG (short *)) = data->counter; + else + *(GETARG (int *)) = data->counter; + state = 0; + break; + case '%': /* nothing just % */ + PUT_CHAR('%', data); + state = 0; + break; + default: + /* is this an error ? maybe bail out */ + state = 0; + break; + } /* end switch */ + } /* end of `%' for loop */ + } /* end of format string for loop */ + + if (data->length >= 0) + *data->holder = '\0'; /* the end ye ! */ + + return data->counter; +} + +#if defined (FLOATING_POINT) && defined (HAVE_LONG_DOUBLE) +/* + * Printing floating point numbers accurately is an art. I'm not good + * at it. Fall back to sprintf for long double formats. + */ +static void +ldfallback (data, fs, fe, ld) + struct DATA *data; + const char *fs, *fe; + long double ld; +{ + register char *x; + char fmtbuf[FALLBACK_FMTSIZE], *obuf; + int fl; + + fl = LFALLBACK_BASE + (data->precision < 6 ? 6 : data->precision) + 2; + obuf = (char *)xmalloc (fl); + fl = fe - fs + 1; + strncpy (fmtbuf, fs, fl); + fmtbuf[fl] = '\0'; + + if ((data->flags & PF_STAR_W) && (data->flags & PF_STAR_P)) + sprintf (obuf, fmtbuf, data->width, data->precision, ld); + else if (data->flags & PF_STAR_W) + sprintf (obuf, fmtbuf, data->width, ld); + else if (data->flags & PF_STAR_P) + sprintf (obuf, fmtbuf, data->precision, ld); + else + sprintf (obuf, fmtbuf, ld); + + for (x = obuf; *x; x++) + PUT_CHAR (*x, data); + xfree (obuf); +} +#endif /* FLOATING_POINT && HAVE_LONG_DOUBLE */ + +#ifdef FLOATING_POINT +/* Used for %a, %A if the libc printf supports them. */ +static void +dfallback (data, fs, fe, d) + struct DATA *data; + const char *fs, *fe; + double d; +{ + register char *x; + char fmtbuf[FALLBACK_FMTSIZE], obuf[FALLBACK_BASE]; + int fl; + + fl = fe - fs + 1; + strncpy (fmtbuf, fs, fl); + fmtbuf[fl] = '\0'; + + if ((data->flags & PF_STAR_W) && (data->flags & PF_STAR_P)) + sprintf (obuf, fmtbuf, data->width, data->precision, d); + else if (data->flags & PF_STAR_W) + sprintf (obuf, fmtbuf, data->width, d); + else if (data->flags & PF_STAR_P) + sprintf (obuf, fmtbuf, data->precision, d); + else + sprintf (obuf, fmtbuf, d); + + for (x = obuf; *x; x++) + PUT_CHAR (*x, data); +} +#endif /* FLOATING_POINT */ + +#if !HAVE_SNPRINTF + +int +#if defined (__STDC__) +vsnprintf(char *string, size_t length, const char *format, va_list args) +#else +vsnprintf(string, length, format, args) + char *string; + size_t length; + const char *format; + va_list args; +#endif +{ + struct DATA data; + + if (string == 0 && length != 0) + return 0; + init_data (&data, string, length, format, PFM_SN); + return (vsnprintf_internal(&data, string, length, format, args)); +} + +int +#if defined(PREFER_STDARG) +snprintf(char *string, size_t length, const char * format, ...) +#else +snprintf(string, length, format, va_alist) + char *string; + size_t length; + const char *format; + va_dcl +#endif +{ + struct DATA data; + int rval; + va_list args; + + SH_VA_START(args, format); + + if (string == 0 && length != 0) + return 0; + init_data (&data, string, length, format, PFM_SN); + rval = vsnprintf_internal (&data, string, length, format, args); + + va_end(args); + + return rval; +} + +#endif /* HAVE_SNPRINTF */ + +#if !HAVE_ASPRINTF + +int +#if defined (__STDC__) +vasprintf(char **stringp, const char *format, va_list args) +#else +vasprintf(stringp, format, args) + char **stringp; + const char *format; + va_list args; +#endif +{ + struct DATA data; + char *string; + int r; + + string = (char *)xmalloc(ASBUFSIZE); + init_data (&data, string, ASBUFSIZE, format, PFM_AS); + r = vsnprintf_internal(&data, string, ASBUFSIZE, format, args); + *stringp = data.base; /* not string in case reallocated */ + return r; +} + +int +#if defined(PREFER_STDARG) +asprintf(char **stringp, const char * format, ...) +#else +asprintf(stringp, format, va_alist) + char **stringp; + const char *format; + va_dcl +#endif +{ + int rval; + va_list args; + + SH_VA_START(args, format); + + rval = vasprintf (stringp, format, args); + + va_end(args); + + return rval; +} + +#endif /* !HAVE_ASPRINTF */ + +#endif /* !HAVE_SNPRINTF || !HAVE_ASPRINTF */ + +#ifdef DRIVER + +static void +memory_error_and_abort () +{ + write (2, "out of virtual memory\n", 22); + abort (); +} + +static void * +xmalloc(bytes) + size_t bytes; +{ + void *ret; + + ret = malloc(bytes); + if (ret == 0) + memory_error_and_abort (); + return ret; +} + +static void * +xrealloc (pointer, bytes) + void *pointer; + size_t bytes; +{ + void *ret; + + ret = pointer ? realloc(pointer, bytes) : malloc(bytes); + if (ret == 0) + memory_error_and_abort (); + return ret; +} + +static void +xfree(x) + void *x; +{ + if (x) + free (x); +} + +/* set of small tests for snprintf() */ +main() +{ + char holder[100]; + char *h; + int i, si, ai; + +#ifdef HAVE_LOCALE_H + setlocale(LC_ALL, ""); +#endif + +#if 1 + si = snprintf((char *)NULL, 0, "abcde\n"); + printf("snprintf returns %d with NULL first argument and size of 0\n", si); + si = snprintf(holder, 0, "abcde\n"); + printf("snprintf returns %d with non-NULL first argument and size of 0\n", si); + si = snprintf((char *)NULL, 16, "abcde\n"); + printf("snprintf returns %d with NULL first argument and non-zero size\n", si); + +/* + printf("Suite of test for snprintf:\n"); + printf("a_format\n"); + printf("printf() format\n"); + printf("snprintf() format\n\n"); +*/ +/* Checking the field widths */ + + printf("/%%ld %%ld/, 336, 336\n"); + snprintf(holder, sizeof holder, "/%ld %ld/\n", 336, 336); + asprintf(&h, "/%ld %ld/\n", 336, 336); + printf("/%ld %ld/\n", 336, 336); + printf("%s", holder); + printf("%s\n", h); + + printf("/%%d/, 336\n"); + snprintf(holder, sizeof holder, "/%d/\n", 336); + asprintf(&h, "/%d/\n", 336); + printf("/%d/\n", 336); + printf("%s", holder); + printf("%s\n", h); + + printf("/%%2d/, 336\n"); + snprintf(holder, sizeof holder, "/%2d/\n", 336); + asprintf(&h, "/%2d/\n", 336); + printf("/%2d/\n", 336); + printf("%s", holder); + printf("%s\n", h); + + printf("/%%10d/, 336\n"); + snprintf(holder, sizeof holder, "/%10d/\n", 336); + asprintf(&h, "/%10d/\n", 336); + printf("/%10d/\n", 336); + printf("%s", holder); + printf("%s\n", h); + + printf("/%%-10d/, 336\n"); + snprintf(holder, sizeof holder, "/%-10d/\n", 336); + asprintf(&h, "/%-10d/\n", 336); + printf("/%-10d/\n", 336); + printf("%s", holder); + printf("%s\n", h); + + +/* floating points */ + + printf("/%%f/, 1234.56\n"); + snprintf(holder, sizeof holder, "/%f/\n", 1234.56); + asprintf(&h, "/%f/\n", 1234.56); + printf("/%f/\n", 1234.56); + printf("%s", holder); + printf("%s\n", h); + + printf("/%%e/, 1234.56\n"); + snprintf(holder, sizeof holder, "/%e/\n", 1234.56); + asprintf(&h, "/%e/\n", 1234.56); + printf("/%e/\n", 1234.56); + printf("%s", holder); + printf("%s\n", h); + + printf("/%%4.2f/, 1234.56\n"); + snprintf(holder, sizeof holder, "/%4.2f/\n", 1234.56); + asprintf(&h, "/%4.2f/\n", 1234.56); + printf("/%4.2f/\n", 1234.56); + printf("%s", holder); + printf("%s\n", h); + + printf("/%%3.1f/, 1234.56\n"); + snprintf(holder, sizeof holder, "/%3.1f/\n", 1234.56); + asprintf(&h, "/%3.1f/\n", 1234.56); + printf("/%3.1f/\n", 1234.56); + printf("%s", holder); + printf("%s\n", h); + + printf("/%%10.3f/, 1234.56\n"); + snprintf(holder, sizeof holder, "/%10.3f/\n", 1234.56); + asprintf(&h, "/%10.3f/\n", 1234.56); + printf("/%10.3f/\n", 1234.56); + printf("%s", holder); + printf("%s\n", h); + + printf("/%%10.3e/, 1234.56\n"); + snprintf(holder, sizeof holder, "/%10.3e/\n", 1234.56); + asprintf(&h, "/%10.3e/\n", 1234.56); + printf("/%10.3e/\n", 1234.56); + printf("%s", holder); + printf("%s\n", h); + + printf("/%%+4.2f/, 1234.56\n"); + snprintf(holder, sizeof holder, "/%+4.2f/\n", 1234.56); + asprintf(&h, "/%+4.2f/\n", 1234.56); + printf("/%+4.2f/\n", 1234.56); + printf("%s", holder); + printf("%s\n", h); + + printf("/%%010.2f/, 1234.56\n"); + snprintf(holder, sizeof holder, "/%010.2f/\n", 1234.56); + asprintf(&h, "/%010.2f/\n", 1234.56); + printf("/%010.2f/\n", 1234.56); + printf("%s", holder); + printf("%s\n", h); + +#define BLURB "Outstanding acting !" +/* strings precisions */ + + printf("/%%2s/, \"%s\"\n", BLURB); + snprintf(holder, sizeof holder, "/%2s/\n", BLURB); + asprintf(&h, "/%2s/\n", BLURB); + printf("/%2s/\n", BLURB); + printf("%s", holder); + printf("%s\n", h); + + printf("/%%22s/ %s\n", BLURB); + snprintf(holder, sizeof holder, "/%22s/\n", BLURB); + asprintf(&h, "/%22s/\n", BLURB); + printf("/%22s/\n", BLURB); + printf("%s", holder); + printf("%s\n", h); + + printf("/%%22.5s/ %s\n", BLURB); + snprintf(holder, sizeof holder, "/%22.5s/\n", BLURB); + asprintf(&h, "/%22.5s/\n", BLURB); + printf("/%22.5s/\n", BLURB); + printf("%s", holder); + printf("%s\n", h); + + printf("/%%-22.5s/ %s\n", BLURB); + snprintf(holder, sizeof holder, "/%-22.5s/\n", BLURB); + asprintf(&h, "/%-22.5s/\n", BLURB); + printf("/%-22.5s/\n", BLURB); + printf("%s", holder); + printf("%s\n", h); + +/* see some flags */ + + printf("%%x %%X %%#x, 31, 31, 31\n"); + snprintf(holder, sizeof holder, "%x %X %#x\n", 31, 31, 31); + asprintf(&h, "%x %X %#x\n", 31, 31, 31); + printf("%x %X %#x\n", 31, 31, 31); + printf("%s", holder); + printf("%s\n", h); + + printf("**%%d**%% d**%% d**, 42, 42, -42\n"); + snprintf(holder, sizeof holder, "**%d**% d**% d**\n", 42, 42, -42); + asprintf(&h, "**%d**% d**% d**\n", 42, 42, -42); + printf("**%d**% d**% d**\n", 42, 42, -42); + printf("%s", holder); + printf("%s\n", h); + +/* other flags */ + + printf("/%%g/, 31.4\n"); + snprintf(holder, sizeof holder, "/%g/\n", 31.4); + asprintf(&h, "/%g/\n", 31.4); + printf("/%g/\n", 31.4); + printf("%s", holder); + printf("%s\n", h); + + printf("/%%.6g/, 31.4\n"); + snprintf(holder, sizeof holder, "/%.6g/\n", 31.4); + asprintf(&h, "/%.6g/\n", 31.4); + printf("/%.6g/\n", 31.4); + printf("%s", holder); + printf("%s\n", h); + + printf("/%%.1G/, 31.4\n"); + snprintf(holder, sizeof holder, "/%.1G/\n", 31.4); + asprintf(&h, "/%.1G/\n", 31.4); + printf("/%.1G/\n", 31.4); + printf("%s", holder); + printf("%s\n", h); + + printf("/%%.1G/, 3100000000.4\n"); + snprintf(holder, sizeof holder, "/%.1G/\n", 3100000000.4); + asprintf(&h, "/%.1G/\n", 3100000000.4); + printf("/%.1G/\n", 3100000000.4); + printf("%s", holder); + printf("%s\n", h); + + printf("abc%%n\n"); + printf("abc%n", &i); printf("%d\n", i); + snprintf(holder, sizeof holder, "abc%n", &i); + printf("%s", holder); printf("%d\n\n", i); + asprintf(&h, "abc%n", &i); + printf("%s", h); printf("%d\n\n", i); + + printf("%%*.*s --> 10.10\n"); + snprintf(holder, sizeof holder, "%*.*s\n", 10, 10, BLURB); + asprintf(&h, "%*.*s\n", 10, 10, BLURB); + printf("%*.*s\n", 10, 10, BLURB); + printf("%s", holder); + printf("%s\n", h); + + printf("%%%%%%%%\n"); + snprintf(holder, sizeof holder, "%%%%\n"); + asprintf(&h, "%%%%\n"); + printf("%%%%\n"); + printf("%s", holder); + printf("%s\n", h); + +#define BIG "Hello this is a too big string for the buffer" +/* printf("A buffer to small of 10, trying to put this:\n");*/ + printf("<%%>, %s\n", BIG); + i = snprintf(holder, 10, "%s\n", BIG); + i = asprintf(&h, "%s", BIG); + printf("<%s>\n", BIG); + printf("<%s>\n", holder); + printf("<%s>\n\n", h); + + printf ("<%%p> vsnprintf\n"); + i = snprintf(holder, 100, "%p", vsnprintf); + i = asprintf(&h, "%p", vsnprintf); + printf("<%p>\n", vsnprintf); + printf("<%s>\n", holder); + printf("<%s>\n\n", h); + + printf ("<%%lu> LONG_MAX+1\n"); + i = snprintf(holder, 100, "%lu", (unsigned long)(LONG_MAX)+1); + i = asprintf(&h, "%lu", (unsigned long)(LONG_MAX)+1); + printf("<%lu>\n", (unsigned long)(LONG_MAX)+1); + printf("<%s>\n", holder); + printf("<%s>\n\n", h); + +#ifdef HAVE_LONG_LONG + printf ("<%%llu> LLONG_MAX+1\n"); + i = snprintf(holder, 100, "%llu", (unsigned long long)(LLONG_MAX)+1); + i = asprintf(&h, "%llu", (unsigned long long)(LLONG_MAX)+1); + printf("<%llu>\n", (unsigned long long)(LLONG_MAX)+1); + printf("<%s>\n", holder); + printf("<%s>\n\n", h); +#endif + +#ifdef HAVE_LONG_DOUBLE + printf ("<%%6.2LE> 42.42\n"); + i = snprintf(holder, 100, "%6.2LE", (long double)42.42); + i = asprintf(&h, "%6.2LE", (long double)42.42); + printf ("<%6.2LE>\n", (long double)42.42); + printf ("<%s>\n", holder); + printf ("<%s>\n\n", h); +#endif + +#ifdef HAVE_PRINTF_A_FORMAT + printf ("<%%6.2A> 42.42\n"); + i = snprintf(holder, 100, "%6.2A", 42.42); + i = asprintf(&h, "%6.2A", 42.42); + printf ("<%6.2A>\n", 42.42); + printf ("<%s>\n", holder); + printf ("<%s>\n\n", h); + + printf ("<%%6.2LA> 42.42\n"); + i = snprintf(holder, 100, "%6.2LA", (long double)42.42); + i = asprintf(&h, "%6.2LA", (long double)42.42); + printf ("<%6.2LA>\n", (long double)42.42); + printf ("<%s>\n", holder); + printf ("<%s>\n\n", h); +#endif + + printf ("<%%.10240f> DBL_MAX\n"); + si = snprintf(holder, 100, "%.10240f", DBL_MAX); + ai = asprintf(&h, "%.10240f", DBL_MAX); + printf ("<%.10240f>\n", DBL_MAX); + printf ("<%d> <%s>\n", si, holder); + printf ("<%d> <%s>\n\n", ai, h); + + printf ("<%%.10240Lf> LDBL_MAX\n"); + si = snprintf(holder, 100, "%.10240Lf", (long double)LDBL_MAX); + ai = asprintf(&h, "%.10240Lf", (long double)LDBL_MAX); + printf ("<%.10240Lf>\n", (long double)LDBL_MAX); + printf ("<%d> <%s>\n", si, holder); + printf ("<%d> <%s>\n\n", ai, h); + + /* huh? */ + printf("/%%g/, 421.2345\n"); + snprintf(holder, sizeof holder, "/%g/\n", 421.2345); + asprintf(&h, "/%g/\n", 421.2345); + printf("/%g/\n", 421.2345); + printf("%s", holder); + printf("%s\n", h); + + printf("/%%g/, 4214.2345\n"); + snprintf(holder, sizeof holder, "/%g/\n", 4214.2345); + asprintf(&h, "/%g/\n", 4214.2345); + printf("/%g/\n", 4214.2345); + printf("%s", holder); + printf("%s\n", h); + + printf("/%%.5g/, 4214.2345\n"); + snprintf(holder, sizeof holder, "/%.5g/\n", 4214.2345); + asprintf(&h, "/%.5g/\n", 4214.2345); + printf("/%.5g/\n", 4214.2345); + printf("%s", holder); + printf("%s\n", h); + + printf("/%%.4g/, 4214.2345\n"); + snprintf(holder, sizeof holder, "/%.4g/\n", 4214.2345); + asprintf(&h, "/%.4g/\n", 4214.2345); + printf("/%.4g/\n", 4214.2345); + printf("%s", holder); + printf("%s\n", h); + + printf("/%%'ld %%'ld/, 12345, 1234567\n"); + snprintf(holder, sizeof holder, "/%'ld %'ld/\n", 12345, 1234567); + asprintf(&h, "/%'ld %'ld/\n", 12345, 1234567); + printf("/%'ld %'ld/\n", 12345, 1234567); + printf("%s", holder); + printf("%s\n", h); + + printf("/%%'ld %%'ld/, 336, 3336\n"); + snprintf(holder, sizeof holder, "/%'ld %'ld/\n", 336, 3336); + asprintf(&h, "/%'ld %'ld/\n", 336, 3336); + printf("/%'ld %'ld/\n", 336, 3336); + printf("%s", holder); + printf("%s\n", h); + + printf("/%%'ld %%'ld/, -42786, -142786\n"); + snprintf(holder, sizeof holder, "/%'ld %'ld/\n", -42786, -142786); + asprintf(&h, "/%'ld %'ld/\n", -42786, -142786); + printf("/%'ld %'ld/\n", -42786, -142786); + printf("%s", holder); + printf("%s\n", h); + + printf("/%%'f %%'f/, 421.2345, 421234.56789\n"); + snprintf(holder, sizeof holder, "/%'f %'f/\n", 421.2345, 421234.56789); + asprintf(&h, "/%'f %'f/\n", 421.2345, 421234.56789); + printf("/%'f %'f/\n", 421.2345, 421234.56789); + printf("%s", holder); + printf("%s\n", h); + + printf("/%%'f %%'f/, -421.2345, -421234.56789\n"); + snprintf(holder, sizeof holder, "/%'f %'f/\n", -421.2345, -421234.56789); + asprintf(&h, "/%'f %'f/\n", -421.2345, -421234.56789); + printf("/%'f %'f/\n", -421.2345, -421234.56789); + printf("%s", holder); + printf("%s\n", h); + + printf("/%%'g %%'g/, 421.2345, 421234.56789\n"); + snprintf(holder, sizeof holder, "/%'g %'g/\n", 421.2345, 421234.56789); + asprintf(&h, "/%'g %'g/\n", 421.2345, 421234.56789); + printf("/%'g %'g/\n", 421.2345, 421234.56789); + printf("%s", holder); + printf("%s\n", h); + + printf("/%%'g %%'g/, -421.2345, -421234.56789\n"); + snprintf(holder, sizeof holder, "/%'g %'g/\n", -421.2345, -421234.56789); + asprintf(&h, "/%'g %'g/\n", -421.2345, -421234.56789); + printf("/%'g %'g/\n", -421.2345, -421234.56789); + printf("%s", holder); + printf("%s\n", h); +#endif + + printf("/%%'g/, 4213455.8392\n"); + snprintf(holder, sizeof holder, "/%'g/\n", 4213455.8392); + asprintf(&h, "/%'g/\n", 4213455.8392); + printf("/%'g/\n", 4213455.8392); + printf("%s", holder); + printf("%s\n", h); + + exit (0); +} +#endif diff --git a/lib/sh/spell.c b/lib/sh/spell.c new file mode 100644 index 0000000..cdf465b --- /dev/null +++ b/lib/sh/spell.c @@ -0,0 +1,212 @@ +/* spell.c -- spelling correction for pathnames. */ + +/* Copyright (C) 2000-2020 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#if defined (HAVE_UNISTD_H) +# ifdef _MINIX +# include <sys/types.h> +# endif +# include <unistd.h> +#endif + +#include <bashtypes.h> +#include <posixdir.h> +#include <posixstat.h> +#if defined (HAVE_SYS_PARAM_H) +#include <sys/param.h> +#endif + +#include <stdio.h> + +#include <bashansi.h> +#include <maxpath.h> +#include <stdc.h> + +static int mindist PARAMS((char *, char *, char *)); +static int spdist PARAMS((char *, char *)); + +/* + * `spname' and its helpers are inspired by the code in "The UNIX + * Programming Environment", Kernighan & Pike, Prentice-Hall 1984, + * pages 209 - 213. + */ + +/* + * `spname' -- return a correctly spelled filename + * + * int spname(char * oldname, char * newname) + * Returns: -1 if no reasonable match found + * 0 if exact match found + * 1 if corrected + * Stores corrected name in `newname'. + */ +int +spname(oldname, newname) + char *oldname; + char *newname; +{ + char *op, *np, *p; + char guess[PATH_MAX + 1], best[PATH_MAX + 1]; + + op = oldname; + np = newname; + for (;;) + { + while (*op == '/') /* Skip slashes */ + *np++ = *op++; + *np = '\0'; + + if (*op == '\0') /* Exact or corrected */ + { + /* `.' is rarely the right thing. */ + if (oldname[1] == '\0' && newname[1] == '\0' && + oldname[0] != '.' && newname[0] == '.') + return -1; + return strcmp(oldname, newname) != 0; + } + + /* Copy next component into guess */ + for (p = guess; *op != '/' && *op != '\0'; op++) + if (p < guess + PATH_MAX) + *p++ = *op; + *p = '\0'; + + if (mindist(newname, guess, best) >= 3) + return -1; /* Hopeless */ + + /* + * Add to end of newname + */ + for (p = best; *np = *p++; np++) + ; + } +} + +/* + * Search directory for a guess + */ +static int +mindist(dir, guess, best) + char *dir; + char *guess; + char *best; +{ + DIR *fd; + struct dirent *dp; + int dist, x; + + dist = 3; /* Worst distance */ + if (*dir == '\0') + dir = "."; + + if ((fd = opendir(dir)) == NULL) + return dist; + + while ((dp = readdir(fd)) != NULL) + { + /* + * Look for a better guess. If the new guess is as + * good as the current one, we take it. This way, + * any single character match will be a better match + * than ".". + */ + x = spdist(dp->d_name, guess); + if (x <= dist && x != 3) + { + strcpy(best, dp->d_name); + dist = x; + if (dist == 0) /* Exact match */ + break; + } + } + (void)closedir(fd); + + /* Don't return `.' */ + if (best[0] == '.' && best[1] == '\0') + dist = 3; + return dist; +} + +/* + * `spdist' -- return the "distance" between two names. + * + * int spname(char * oldname, char * newname) + * Returns: 0 if strings are identical + * 1 if two characters are transposed + * 2 if one character is wrong, added or deleted + * 3 otherwise + */ +static int +spdist(cur, new) + char *cur, *new; +{ + while (*cur == *new) + { + if (*cur == '\0') + return 0; /* Exact match */ + cur++; + new++; + } + + if (*cur) + { + if (*new) + { + if (cur[1] && new[1] && cur[0] == new[1] && cur[1] == new[0] && strcmp (cur + 2, new + 2) == 0) + return 1; /* Transposition */ + + if (strcmp (cur + 1, new + 1) == 0) + return 2; /* One character mismatch */ + } + + if (strcmp(&cur[1], &new[0]) == 0) + return 2; /* Extra character */ + } + + if (*new && strcmp(cur, new + 1) == 0) + return 2; /* Missing character */ + + return 3; +} + +char * +dirspell (dirname) + char *dirname; +{ + int n; + char *guess; + + n = (strlen (dirname) * 3 + 1) / 2 + 1; + guess = (char *)malloc (n); + if (guess == 0) + return 0; + + switch (spname (dirname, guess)) + { + case -1: + default: + free (guess); + return (char *)NULL; + case 0: + case 1: + return guess; + } +} diff --git a/lib/sh/strcasecmp.c b/lib/sh/strcasecmp.c new file mode 100644 index 0000000..70d0551 --- /dev/null +++ b/lib/sh/strcasecmp.c @@ -0,0 +1,84 @@ +/* strcasecmp.c - functions for case-insensitive string comparison. */ + +/* Copyright (C) 1995 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#if !defined (HAVE_STRCASECMP) + +#include <stdc.h> +#include <bashansi.h> +#include <chartypes.h> + +/* Compare at most COUNT characters from string1 to string2. Case + doesn't matter. */ +int +strncasecmp (string1, string2, count) + const char *string1; + const char *string2; + size_t count; +{ + register const char *s1; + register const char *s2; + register int r; + + if (count <= 0 || (string1 == string2)) + return 0; + + s1 = string1; + s2 = string2; + do + { + if ((r = TOLOWER ((unsigned char) *s1) - TOLOWER ((unsigned char) *s2)) != 0) + return r; + if (*s1++ == '\0') + break; + s2++; + } + while (--count != 0); + + return (0); +} + +/* strcmp (), but caseless. */ +int +strcasecmp (string1, string2) + const char *string1; + const char *string2; +{ + register const char *s1; + register const char *s2; + register int r; + + s1 = string1; + s2 = string2; + + if (s1 == s2) + return (0); + + while ((r = TOLOWER ((unsigned char)*s1) - TOLOWER ((unsigned char)*s2)) == 0) + { + if (*s1++ == '\0') + return 0; + s2++; + } + + return (r); +} +#endif /* !HAVE_STRCASECMP */ diff --git a/lib/sh/strcasestr.c b/lib/sh/strcasestr.c new file mode 100644 index 0000000..c819b3e --- /dev/null +++ b/lib/sh/strcasestr.c @@ -0,0 +1,46 @@ +/* strcasestr.c - Find if one string appears as a substring of another string, + without regard to case. */ + +/* Copyright (C) 2000 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#include <bashansi.h> +#include <chartypes.h> + +#include <stdc.h> + +/* Determine if s2 occurs in s1. If so, return a pointer to the + match in s1. The compare is case insensitive. This is a + case-insensitive strstr(3). */ +char * +strcasestr (s1, s2) + const char *s1; + const char *s2; +{ + register int i, l, len, c; + + c = TOLOWER ((unsigned char)s2[0]); + len = strlen (s1); + l = strlen (s2); + for (i = 0; (len - i) >= l; i++) + if ((TOLOWER ((unsigned char)s1[i]) == c) && (strncasecmp (s1 + i, s2, l) == 0)) + return ((char *)s1 + i); + return ((char *)0); +} diff --git a/lib/sh/strchrnul.c b/lib/sh/strchrnul.c new file mode 100644 index 0000000..00cb88c --- /dev/null +++ b/lib/sh/strchrnul.c @@ -0,0 +1,35 @@ +/* Searching in a string. + Copyright (C) 2012 Free Software Foundation, Inc. + + 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 3 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 <http://www.gnu.org/licenses/>. */ + +#include <config.h> +#include <stdio.h> + +/* Specification. */ +#include <string.h> + +/* Find the first occurrence of C in S or the final NUL byte. */ +char * +strchrnul (s, c_in) + const char *s; + int c_in; +{ + char c; + register char *s1; + + for (c = c_in, s1 = (char *)s; s1 && *s1 && *s1 != c; s1++) + ; + return (s1); +} diff --git a/lib/sh/strdup.c b/lib/sh/strdup.c new file mode 100644 index 0000000..90fa353 --- /dev/null +++ b/lib/sh/strdup.c @@ -0,0 +1,42 @@ +/* strdup - return a copy of a string in newly-allocated memory. */ + +/* Copyright (C) 2013 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + + +#include <config.h> + +/* Get specification. */ +#include <string.h> +#include <stdlib.h> + +/* Duplicate S, returning an identical malloc'd string. */ +char * +strdup (s) + const char *s; +{ + size_t len; + void *new; + + len = strlen (s) + 1; + if ((new = malloc (len)) == NULL) + return NULL; + + memcpy (new, s, len); + return ((char *)new); +} diff --git a/lib/sh/strerror.c b/lib/sh/strerror.c new file mode 100644 index 0000000..bf63926 --- /dev/null +++ b/lib/sh/strerror.c @@ -0,0 +1,74 @@ +/* strerror.c - string corresponding to a particular value of errno. */ + +/* Copyright (C) 1995 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#if !defined (HAVE_STRERROR) + +#include <bashtypes.h> +#if defined (HAVE_SYS_PARAM_H) +# include <sys/param.h> +#endif + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +#include <stdio.h> +#include <errno.h> + +#include <shell.h> + +#if !defined (errno) +extern int errno; +#endif /* !errno */ + +/* Return a string corresponding to the error number E. From + the ANSI C spec. */ +#if defined (strerror) +# undef strerror +#endif + +static char *errbase = "Unknown system error "; + +char * +strerror (e) + int e; +{ + static char emsg[40]; +#if defined (HAVE_SYS_ERRLIST) + extern int sys_nerr; + extern char *sys_errlist[]; + + if (e > 0 && e < sys_nerr) + return (sys_errlist[e]); + else +#endif /* HAVE_SYS_ERRLIST */ + { + char *z; + + z = itos (e); + strcpy (emsg, errbase); + strcat (emsg, z); + free (z); + return (&emsg[0]); + } +} +#endif /* HAVE_STRERROR */ diff --git a/lib/sh/strftime.c b/lib/sh/strftime.c new file mode 100644 index 0000000..08ccb9a --- /dev/null +++ b/lib/sh/strftime.c @@ -0,0 +1,1015 @@ +/* strftime - formatted time and date to a string */ +/* + * Modified slightly by Chet Ramey for inclusion in Bash + */ +/* + * strftime.c + * + * Public-domain implementation of ISO C library routine. + * + * If you can't do prototypes, get GCC. + * + * The C99 standard now specifies just about all of the formats + * that were additional in the earlier versions of this file. + * + * For extensions from SunOS, add SUNOS_EXT. + * For extensions from HP/UX, add HPUX_EXT. + * For VMS dates, add VMS_EXT. + * For complete POSIX semantics, add POSIX_SEMANTICS. + * + * The code for %c, %x, and %X follows the C99 specification for + * the "C" locale. + * + * This version ignores LOCALE information. + * It also doesn't worry about multi-byte characters. + * So there. + * + * Arnold Robbins + * January, February, March, 1991 + * Updated March, April 1992 + * Updated April, 1993 + * Updated February, 1994 + * Updated May, 1994 + * Updated January, 1995 + * Updated September, 1995 + * Updated January, 1996 + * Updated July, 1997 + * Updated October, 1999 + * Updated September, 2000 + * Updated December, 2001 + * Updated January, 2011 + * Updated April, 2012 + * + * Fixes from ado@elsie.nci.nih.gov, + * February 1991, May 1992 + * Fixes from Tor Lillqvist tml@tik.vtt.fi, + * May 1993 + * Further fixes from ado@elsie.nci.nih.gov, + * February 1994 + * %z code from chip@chinacat.unicom.com, + * Applied September 1995 + * %V code fixed (again) and %G, %g added, + * January 1996 + * %v code fixed, better configuration, + * July 1997 + * Moved to C99 specification. + * September 2000 + * Fixes from Tanaka Akira <akr@m17n.org> + * December 2001 + */ +#include <config.h> + +#include <stdio.h> +#include <ctype.h> +#include <time.h> +#include <errno.h> + +#if defined(TM_IN_SYS_TIME) +#include <sys/types.h> +#include <sys/time.h> +#endif + +#include <stdlib.h> +#include <string.h> + +/* defaults: season to taste */ +#define SUNOS_EXT 1 /* stuff in SunOS strftime routine */ +#define VMS_EXT 1 /* include %v for VMS date format */ +#define HPUX_EXT 1 /* non-conflicting stuff in HP-UX date */ +#define POSIX_SEMANTICS 1 /* call tzset() if TZ changes */ +#define POSIX_2008 1 /* flag and fw for C, F, G, Y formats */ + +#undef strchr /* avoid AIX weirdness */ + +#if !defined (errno) +extern int errno; +#endif + +#if defined (SHELL) +extern char *get_string_value (const char *); +#endif + +extern void tzset(void); +static int weeknumber(const struct tm *timeptr, int firstweekday); +static int iso8601wknum(const struct tm *timeptr); + +#ifndef inline +#ifdef __GNUC__ +#define inline __inline__ +#else +#define inline /**/ +#endif +#endif + +#define range(low, item, hi) max(low, min(item, hi)) + +/* Whew! This stuff is a mess. */ +#if !defined(OS2) && !defined(MSDOS) && !defined(__CYGWIN__) && defined(HAVE_TZNAME) +extern char *tzname[2]; +extern int daylight; +#if defined(SOLARIS) || defined(mips) || defined (M_UNIX) +extern long int timezone, altzone; +#else +# if defined (HPUX) || defined(__hpux) +extern long int timezone; +# else +# if !defined(__CYGWIN__) +extern int timezone, altzone; +# endif +# endif +#endif +#endif + +#undef min /* just in case */ + +/* min --- return minimum of two numbers */ + +static inline int +min(int a, int b) +{ + return (a < b ? a : b); +} + +#undef max /* also, just in case */ + +/* max --- return maximum of two numbers */ + +static inline int +max(int a, int b) +{ + return (a > b ? a : b); +} + +#ifdef POSIX_2008 +/* iso_8601_2000_year --- format a year per ISO 8601:2000 as in 1003.1 */ + +static void +iso_8601_2000_year(char *buf, int year, size_t fw) +{ + int extra; + char sign = '\0'; + + if (year >= -9999 && year <= 9999) { + sprintf(buf, "%0*d", (int) fw, year); + return; + } + + /* now things get weird */ + if (year > 9999) { + sign = '+'; + } else { + sign = '-'; + year = -year; + } + + extra = year / 10000; + year %= 10000; + sprintf(buf, "%c_%04d_%d", sign, extra, year); +} +#endif /* POSIX_2008 */ + +/* strftime --- produce formatted time */ + +size_t +strftime(char *s, size_t maxsize, const char *format, const struct tm *timeptr) +{ + char *endp = s + maxsize; + char *start = s; + auto char tbuf[100]; + long off; + int i, w, oerrno; + long y; + static short first = 1; +#ifdef POSIX_SEMANTICS + static char *savetz = NULL; + static int savetzlen = 0; + char *tz; +#endif /* POSIX_SEMANTICS */ +#ifndef HAVE_TM_ZONE +#ifndef HAVE_TM_NAME +#ifndef HAVE_TZNAME +#ifndef __CYGWIN__ + extern char *timezone(); + struct timeval tv; + struct timezone zone; +#endif /* __CYGWIN__ */ +#endif /* HAVE_TZNAME */ +#endif /* HAVE_TM_NAME */ +#endif /* HAVE_TM_ZONE */ +#ifdef POSIX_2008 + int pad; + size_t fw; + char flag; +#endif /* POSIX_2008 */ + + /* various tables, useful in North America */ + static const char *days_a[] = { + "Sun", "Mon", "Tue", "Wed", + "Thu", "Fri", "Sat", + }; + static const char *days_l[] = { + "Sunday", "Monday", "Tuesday", "Wednesday", + "Thursday", "Friday", "Saturday", + }; + static const char *months_a[] = { + "Jan", "Feb", "Mar", "Apr", "May", "Jun", + "Jul", "Aug", "Sep", "Oct", "Nov", "Dec", + }; + static const char *months_l[] = { + "January", "February", "March", "April", + "May", "June", "July", "August", "September", + "October", "November", "December", + }; + static const char *ampm[] = { "AM", "PM", }; + + oerrno = errno; + + if (s == NULL || format == NULL || timeptr == NULL || maxsize == 0) + return 0; + + /* quick check if we even need to bother */ + if (strchr(format, '%') == NULL && strlen(format) + 1 >= maxsize) + return 0; + +#ifndef POSIX_SEMANTICS + if (first) { + tzset(); + first = 0; + } +#else /* POSIX_SEMANTICS */ +#if defined (SHELL) + tz = get_string_value ("TZ"); +#else + tz = getenv("TZ"); +#endif + if (first) { + if (tz != NULL) { + int tzlen = strlen(tz); + + savetz = (char *) malloc(tzlen + 1); + if (savetz != NULL) { + savetzlen = tzlen + 1; + strcpy(savetz, tz); + } + } + tzset(); + first = 0; + } + /* if we have a saved TZ, and it is different, recapture and reset */ + if (tz && savetz && (tz[0] != savetz[0] || strcmp(tz, savetz) != 0)) { + i = strlen(tz) + 1; + if (i > savetzlen) { + savetz = (char *) realloc(savetz, i); + if (savetz) { + savetzlen = i; + strcpy(savetz, tz); + } + } else + strcpy(savetz, tz); + tzset(); + } +#endif /* POSIX_SEMANTICS */ + + for (; *format && s < endp - 1; format++) { + tbuf[0] = '\0'; + if (*format != '%') { + *s++ = *format; + continue; + } +#ifdef POSIX_2008 + pad = '\0'; + fw = 0; + flag = '\0'; + switch (*++format) { + case '+': + flag = '+'; + /* fall through */ + case '0': + pad = '0'; + format++; + break; + + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + break; + + default: + format--; + goto again; + } + for (; isdigit(*format); format++) { + fw = fw * 10 + (*format - '0'); + } + format--; +#endif /* POSIX_2008 */ + + again: + switch (*++format) { + case '\0': + *s++ = '%'; + goto out; + + case '%': + *s++ = '%'; + continue; + + case 'a': /* abbreviated weekday name */ + if (timeptr->tm_wday < 0 || timeptr->tm_wday > 6) + strcpy(tbuf, "?"); + else + strcpy(tbuf, days_a[timeptr->tm_wday]); + break; + + case 'A': /* full weekday name */ + if (timeptr->tm_wday < 0 || timeptr->tm_wday > 6) + strcpy(tbuf, "?"); + else + strcpy(tbuf, days_l[timeptr->tm_wday]); + break; + + case 'b': /* abbreviated month name */ + short_month: + if (timeptr->tm_mon < 0 || timeptr->tm_mon > 11) + strcpy(tbuf, "?"); + else + strcpy(tbuf, months_a[timeptr->tm_mon]); + break; + + case 'B': /* full month name */ + if (timeptr->tm_mon < 0 || timeptr->tm_mon > 11) + strcpy(tbuf, "?"); + else + strcpy(tbuf, months_l[timeptr->tm_mon]); + break; + + case 'c': /* appropriate date and time representation */ + /* + * This used to be: + * + * strftime(tbuf, sizeof tbuf, "%a %b %e %H:%M:%S %Y", timeptr); + * + * Now, per the ISO 1999 C standard, it this: + */ + strftime(tbuf, sizeof tbuf, "%A %B %d %T %Y", timeptr); + break; + + case 'C': +#ifdef POSIX_2008 + if (pad != '\0' && fw > 0) { + size_t min_fw = (flag ? 3 : 2); + + fw = max(fw, min_fw); + sprintf(tbuf, flag + ? "%+0*ld" + : "%0*ld", (int) fw, + (timeptr->tm_year + 1900L) / 100); + } else +#endif /* POSIX_2008 */ + century: + sprintf(tbuf, "%02ld", (timeptr->tm_year + 1900L) / 100); + break; + + case 'd': /* day of the month, 01 - 31 */ + i = range(1, timeptr->tm_mday, 31); + sprintf(tbuf, "%02d", i); + break; + + case 'D': /* date as %m/%d/%y */ + strftime(tbuf, sizeof tbuf, "%m/%d/%y", timeptr); + break; + + case 'e': /* day of month, blank padded */ + sprintf(tbuf, "%2d", range(1, timeptr->tm_mday, 31)); + break; + + case 'E': + /* POSIX (now C99) locale extensions, ignored for now */ + goto again; + + case 'F': /* ISO 8601 date representation */ + { +#ifdef POSIX_2008 + /* + * Field width for %F is for the whole thing. + * It must be at least 10. + */ + char m_d[10]; + strftime(m_d, sizeof m_d, "-%m-%d", timeptr); + size_t min_fw = 10; + + if (pad != '\0' && fw > 0) { + fw = max(fw, min_fw); + } else { + fw = min_fw; + } + + fw -= 6; /* -XX-XX at end are invariant */ + + iso_8601_2000_year(tbuf, timeptr->tm_year + 1900, fw); + strcat(tbuf, m_d); +#else + strftime(tbuf, sizeof tbuf, "%Y-%m-%d", timeptr); +#endif /* POSIX_2008 */ + } + break; + + case 'g': + case 'G': + /* + * Year of ISO week. + * + * If it's December but the ISO week number is one, + * that week is in next year. + * If it's January but the ISO week number is 52 or + * 53, that week is in last year. + * Otherwise, it's this year. + */ + w = iso8601wknum(timeptr); + if (timeptr->tm_mon == 11 && w == 1) + y = 1900L + timeptr->tm_year + 1; + else if (timeptr->tm_mon == 0 && w >= 52) + y = 1900L + timeptr->tm_year - 1; + else + y = 1900L + timeptr->tm_year; + + if (*format == 'G') { +#ifdef POSIX_2008 + if (pad != '\0' && fw > 0) { + size_t min_fw = 4; + + fw = max(fw, min_fw); + sprintf(tbuf, flag + ? "%+0*ld" + : "%0*ld", (int) fw, + y); + } else +#endif /* POSIX_2008 */ + sprintf(tbuf, "%ld", y); + } + else + sprintf(tbuf, "%02ld", y % 100); + break; + + case 'h': /* abbreviated month name */ + goto short_month; + + case 'H': /* hour, 24-hour clock, 00 - 23 */ + i = range(0, timeptr->tm_hour, 23); + sprintf(tbuf, "%02d", i); + break; + + case 'I': /* hour, 12-hour clock, 01 - 12 */ + i = range(0, timeptr->tm_hour, 23); + if (i == 0) + i = 12; + else if (i > 12) + i -= 12; + sprintf(tbuf, "%02d", i); + break; + + case 'j': /* day of the year, 001 - 366 */ + sprintf(tbuf, "%03d", timeptr->tm_yday + 1); + break; + + case 'm': /* month, 01 - 12 */ + i = range(0, timeptr->tm_mon, 11); + sprintf(tbuf, "%02d", i + 1); + break; + + case 'M': /* minute, 00 - 59 */ + i = range(0, timeptr->tm_min, 59); + sprintf(tbuf, "%02d", i); + break; + + case 'n': /* same as \n */ + tbuf[0] = '\n'; + tbuf[1] = '\0'; + break; + + case 'O': + /* POSIX (now C99) locale extensions, ignored for now */ + goto again; + + case 'p': /* am or pm based on 12-hour clock */ + i = range(0, timeptr->tm_hour, 23); + if (i < 12) + strcpy(tbuf, ampm[0]); + else + strcpy(tbuf, ampm[1]); + break; + + case 'r': /* time as %I:%M:%S %p */ + strftime(tbuf, sizeof tbuf, "%I:%M:%S %p", timeptr); + break; + + case 'R': /* time as %H:%M */ + strftime(tbuf, sizeof tbuf, "%H:%M", timeptr); + break; + +#if defined(HAVE_MKTIME) + case 's': /* time as seconds since the Epoch */ + { + struct tm non_const_timeptr; + + non_const_timeptr = *timeptr; + sprintf(tbuf, "%ld", mktime(& non_const_timeptr)); + break; + } +#endif /* defined(HAVE_MKTIME) */ + + case 'S': /* second, 00 - 60 */ + i = range(0, timeptr->tm_sec, 60); + sprintf(tbuf, "%02d", i); + break; + + case 't': /* same as \t */ + tbuf[0] = '\t'; + tbuf[1] = '\0'; + break; + + case 'T': /* time as %H:%M:%S */ + the_time: + strftime(tbuf, sizeof tbuf, "%H:%M:%S", timeptr); + break; + + case 'u': + /* ISO 8601: Weekday as a decimal number [1 (Monday) - 7] */ + sprintf(tbuf, "%d", timeptr->tm_wday == 0 ? 7 : + timeptr->tm_wday); + break; + + case 'U': /* week of year, Sunday is first day of week */ + sprintf(tbuf, "%02d", weeknumber(timeptr, 0)); + break; + + case 'V': /* week of year according ISO 8601 */ + sprintf(tbuf, "%02d", iso8601wknum(timeptr)); + break; + + case 'w': /* weekday, Sunday == 0, 0 - 6 */ + i = range(0, timeptr->tm_wday, 6); + sprintf(tbuf, "%d", i); + break; + + case 'W': /* week of year, Monday is first day of week */ + sprintf(tbuf, "%02d", weeknumber(timeptr, 1)); + break; + + case 'x': /* appropriate date representation */ + strftime(tbuf, sizeof tbuf, "%A %B %d %Y", timeptr); + break; + + case 'X': /* appropriate time representation */ + goto the_time; + break; + + case 'y': /* year without a century, 00 - 99 */ + year: + i = timeptr->tm_year % 100; + sprintf(tbuf, "%02d", i); + break; + + case 'Y': /* year with century */ +#ifdef POSIX_2008 + if (pad != '\0' && fw > 0) { + size_t min_fw = 4; + + fw = max(fw, min_fw); + sprintf(tbuf, flag + ? "%+0*ld" + : "%0*ld", (int) fw, + 1900L + timeptr->tm_year); + } else +#endif /* POSIX_2008 */ + sprintf(tbuf, "%ld", 1900L + timeptr->tm_year); + break; + + /* + * From: Chip Rosenthal <chip@chinacat.unicom.com> + * Date: Sun, 19 Mar 1995 00:33:29 -0600 (CST) + * + * Warning: the %z [code] is implemented by inspecting the + * timezone name conditional compile settings, and + * inferring a method to get timezone offsets. I've tried + * this code on a couple of machines, but I don't doubt + * there is some system out there that won't like it. + * Maybe the easiest thing to do would be to bracket this + * with an #ifdef that can turn it off. The %z feature + * would be an admittedly obscure one that most folks can + * live without, but it would be a great help to those of + * us that muck around with various message processors. + */ + case 'z': /* time zone offset east of GMT e.g. -0600 */ + if (timeptr->tm_isdst < 0) + break; +#ifdef HAVE_TM_NAME + /* + * Systems with tm_name probably have tm_tzadj as + * secs west of GMT. Convert to mins east of GMT. + */ + off = -timeptr->tm_tzadj / 60; +#else /* !HAVE_TM_NAME */ +#ifdef HAVE_TM_ZONE + /* + * Systems with tm_zone probably have tm_gmtoff as + * secs east of GMT. Convert to mins east of GMT. + */ + off = timeptr->tm_gmtoff / 60; +#else /* !HAVE_TM_ZONE */ +#if HAVE_TZNAME + /* + * Systems with tzname[] probably have timezone as + * secs west of GMT. Convert to mins east of GMT. + */ +# if defined(__hpux) || defined (HPUX) || defined(__CYGWIN__) + off = -timezone / 60; +# else + /* ADR: 4 August 2001, fixed this per gazelle@interaccess.com */ + off = -(daylight ? altzone : timezone) / 60; +# endif +#else /* !HAVE_TZNAME */ + gettimeofday(& tv, & zone); + off = -zone.tz_minuteswest; +#endif /* !HAVE_TZNAME */ +#endif /* !HAVE_TM_ZONE */ +#endif /* !HAVE_TM_NAME */ + if (off < 0) { + tbuf[0] = '-'; + off = -off; + } else { + tbuf[0] = '+'; + } + sprintf(tbuf+1, "%02ld%02ld", off/60, off%60); + break; + + case 'Z': /* time zone name or abbreviation */ +#ifdef HAVE_TZNAME + i = (daylight && timeptr->tm_isdst > 0); /* 0 or 1 */ + strcpy(tbuf, tzname[i]); +#else +#ifdef HAVE_TM_ZONE + strcpy(tbuf, timeptr->tm_zone); +#else +#ifdef HAVE_TM_NAME + strcpy(tbuf, timeptr->tm_name); +#else + gettimeofday(& tv, & zone); + strcpy(tbuf, timezone(zone.tz_minuteswest, + timeptr->tm_isdst > 0)); +#endif /* HAVE_TM_NAME */ +#endif /* HAVE_TM_ZONE */ +#endif /* HAVE_TZNAME */ + break; + +#ifdef SUNOS_EXT + case 'k': /* hour, 24-hour clock, blank pad */ + sprintf(tbuf, "%2d", range(0, timeptr->tm_hour, 23)); + break; + + case 'l': /* hour, 12-hour clock, 1 - 12, blank pad */ + i = range(0, timeptr->tm_hour, 23); + if (i == 0) + i = 12; + else if (i > 12) + i -= 12; + sprintf(tbuf, "%2d", i); + break; +#endif + +#ifdef HPUX_EXT + case 'N': /* Emperor/Era name */ + /* this is essentially the same as the century */ + goto century; /* %C */ + + case 'o': /* Emperor/Era year */ + goto year; /* %y */ +#endif /* HPUX_EXT */ + + +#ifdef VMS_EXT + case 'v': /* date as dd-bbb-YYYY */ + sprintf(tbuf, "%2d-%3.3s-%4ld", + range(1, timeptr->tm_mday, 31), + months_a[range(0, timeptr->tm_mon, 11)], + timeptr->tm_year + 1900L); + for (i = 3; i < 6; i++) + if (islower(tbuf[i])) + tbuf[i] = toupper(tbuf[i]); + break; +#endif + + default: + tbuf[0] = '%'; + tbuf[1] = *format; + tbuf[2] = '\0'; + break; + } + i = strlen(tbuf); + if (i) { + if (s + i < endp - 1) { + strcpy(s, tbuf); + s += i; + } else + return 0; + } + } +out: + if (s < endp && *format == '\0') { + *s = '\0'; + if (s == start) + errno = oerrno; + return (s - start); + } else + return 0; +} + +/* isleap --- is a year a leap year? */ + +static int +isleap(long year) +{ + return ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0); +} + + +/* iso8601wknum --- compute week number according to ISO 8601 */ + +static int +iso8601wknum(const struct tm *timeptr) +{ + /* + * From 1003.2: + * If the week (Monday to Sunday) containing January 1 + * has four or more days in the new year, then it is week 1; + * otherwise it is the highest numbered week of the previous + * year (52 or 53), and the next week is week 1. + * + * ADR: This means if Jan 1 was Monday through Thursday, + * it was week 1, otherwise week 52 or 53. + * + * XPG4 erroneously included POSIX.2 rationale text in the + * main body of the standard. Thus it requires week 53. + */ + + int weeknum, jan1day, diff; + + /* get week number, Monday as first day of the week */ + weeknum = weeknumber(timeptr, 1); + + /* + * With thanks and tip of the hatlo to tml@tik.vtt.fi + * + * What day of the week does January 1 fall on? + * We know that + * (timeptr->tm_yday - jan1.tm_yday) MOD 7 == + * (timeptr->tm_wday - jan1.tm_wday) MOD 7 + * and that + * jan1.tm_yday == 0 + * and that + * timeptr->tm_wday MOD 7 == timeptr->tm_wday + * from which it follows that. . . + */ + jan1day = timeptr->tm_wday - (timeptr->tm_yday % 7); + if (jan1day < 0) + jan1day += 7; + + /* + * If Jan 1 was a Monday through Thursday, it was in + * week 1. Otherwise it was last year's highest week, which is + * this year's week 0. + * + * What does that mean? + * If Jan 1 was Monday, the week number is exactly right, it can + * never be 0. + * If it was Tuesday through Thursday, the weeknumber is one + * less than it should be, so we add one. + * Otherwise, Friday, Saturday or Sunday, the week number is + * OK, but if it is 0, it needs to be 52 or 53. + */ + switch (jan1day) { + case 1: /* Monday */ + break; + case 2: /* Tuesday */ + case 3: /* Wednesday */ + case 4: /* Thursday */ + weeknum++; + break; + case 5: /* Friday */ + case 6: /* Saturday */ + case 0: /* Sunday */ + if (weeknum == 0) { +#ifdef USE_BROKEN_XPG4 + /* XPG4 (as of March 1994) says 53 unconditionally */ + weeknum = 53; +#else + /* get week number of last week of last year */ + struct tm dec31ly; /* 12/31 last year */ + dec31ly = *timeptr; + dec31ly.tm_year--; + dec31ly.tm_mon = 11; + dec31ly.tm_mday = 31; + dec31ly.tm_wday = (jan1day == 0) ? 6 : jan1day - 1; + dec31ly.tm_yday = 364 + isleap(dec31ly.tm_year + 1900L); + weeknum = iso8601wknum(& dec31ly); +#endif + } + break; + } + + if (timeptr->tm_mon == 11) { + /* + * The last week of the year + * can be in week 1 of next year. + * Sigh. + * + * This can only happen if + * M T W + * 29 30 31 + * 30 31 + * 31 + */ + int wday, mday; + + wday = timeptr->tm_wday; + mday = timeptr->tm_mday; + if ( (wday == 1 && (mday >= 29 && mday <= 31)) + || (wday == 2 && (mday == 30 || mday == 31)) + || (wday == 3 && mday == 31)) + weeknum = 1; + } + + return weeknum; +} + +/* weeknumber --- figure how many weeks into the year */ + +/* With thanks and tip of the hatlo to ado@elsie.nci.nih.gov */ + +static int +weeknumber(const struct tm *timeptr, int firstweekday) +{ + int wday = timeptr->tm_wday; + int ret; + + if (firstweekday == 1) { + if (wday == 0) /* sunday */ + wday = 6; + else + wday--; + } + ret = ((timeptr->tm_yday + 7 - wday) / 7); + if (ret < 0) + ret = 0; + return ret; +} + +#if 0 +/* ADR --- I'm loathe to mess with ado's code ... */ + +Date: Wed, 24 Apr 91 20:54:08 MDT +From: Michal Jaegermann <audfax!emory!vm.ucs.UAlberta.CA!NTOMCZAK> +To: arnold@audiofax.com + +Hi Arnold, +in a process of fixing of strftime() in libraries on Atari ST I grabbed +some pieces of code from your own strftime. When doing that it came +to mind that your weeknumber() function compiles a little bit nicer +in the following form: +/* + * firstweekday is 0 if starting in Sunday, non-zero if in Monday + */ +{ + return (timeptr->tm_yday - timeptr->tm_wday + + (firstweekday ? (timeptr->tm_wday ? 8 : 1) : 7)) / 7; +} +How nicer it depends on a compiler, of course, but always a tiny bit. + + Cheers, + Michal + ntomczak@vm.ucs.ualberta.ca +#endif + +#ifdef TEST_STRFTIME + +/* + * NAME: + * tst + * + * SYNOPSIS: + * tst + * + * DESCRIPTION: + * "tst" is a test driver for the function "strftime". + * + * OPTIONS: + * None. + * + * AUTHOR: + * Karl Vogel + * Control Data Systems, Inc. + * vogelke@c-17igp.wpafb.af.mil + * + * BUGS: + * None noticed yet. + * + * COMPILE: + * cc -o tst -DTEST_STRFTIME strftime.c + */ + +/* ADR: I reformatted this to my liking, and deleted some unneeded code. */ + +#ifndef NULL +#include <stdio.h> +#endif +#include <sys/time.h> +#include <string.h> + +#define MAXTIME 132 + +/* + * Array of time formats. + */ + +static char *array[] = +{ + "(%%A) full weekday name, var length (Sunday..Saturday) %A", + "(%%B) full month name, var length (January..December) %B", + "(%%C) Century %C", + "(%%D) date (%%m/%%d/%%y) %D", + "(%%E) Locale extensions (ignored) %E", + "(%%F) full month name, var length (January..December) %F", + "(%%H) hour (24-hour clock, 00..23) %H", + "(%%I) hour (12-hour clock, 01..12) %I", + "(%%M) minute (00..59) %M", + "(%%N) Emperor/Era Name %N", + "(%%O) Locale extensions (ignored) %O", + "(%%R) time, 24-hour (%%H:%%M) %R", + "(%%S) second (00..60) %S", + "(%%T) time, 24-hour (%%H:%%M:%%S) %T", + "(%%U) week of year, Sunday as first day of week (00..53) %U", + "(%%V) week of year according to ISO 8601 %V", + "(%%W) week of year, Monday as first day of week (00..53) %W", + "(%%X) appropriate locale time representation (%H:%M:%S) %X", + "(%%Y) year with century (1970...) %Y", + "(%%Z) timezone (EDT), or blank if timezone not determinable %Z", + "(%%a) locale's abbreviated weekday name (Sun..Sat) %a", + "(%%b) locale's abbreviated month name (Jan..Dec) %b", + "(%%c) full date (Sat Nov 4 12:02:33 1989)%n%t%t%t %c", + "(%%d) day of the month (01..31) %d", + "(%%e) day of the month, blank-padded ( 1..31) %e", + "(%%h) should be same as (%%b) %h", + "(%%j) day of the year (001..366) %j", + "(%%k) hour, 24-hour clock, blank pad ( 0..23) %k", + "(%%l) hour, 12-hour clock, blank pad ( 0..12) %l", + "(%%m) month (01..12) %m", + "(%%o) Emperor/Era Year %o", + "(%%p) locale's AM or PM based on 12-hour clock %p", + "(%%r) time, 12-hour (same as %%I:%%M:%%S %%p) %r", + "(%%u) ISO 8601: Weekday as decimal number [1 (Monday) - 7] %u", + "(%%v) VMS date (dd-bbb-YYYY) %v", + "(%%w) day of week (0..6, Sunday == 0) %w", + "(%%x) appropriate locale date representation %x", + "(%%y) last two digits of year (00..99) %y", + "(%%z) timezone offset east of GMT as HHMM (e.g. -0500) %z", + (char *) NULL +}; + +/* main routine. */ + +int +main(argc, argv) +int argc; +char **argv; +{ + long time(); + + char *next; + char string[MAXTIME]; + + int k; + int length; + + struct tm *tm; + + long clock; + + /* Call the function. */ + + clock = time((long *) 0); + tm = localtime(&clock); + + for (k = 0; next = array[k]; k++) { + length = strftime(string, MAXTIME, next, tm); + printf("%s\n", string); + } + + exit(0); +} +#endif /* TEST_STRFTIME */ diff --git a/lib/sh/stringlist.c b/lib/sh/stringlist.c new file mode 100644 index 0000000..3f28b63 --- /dev/null +++ b/lib/sh/stringlist.c @@ -0,0 +1,297 @@ +/* stringlist.c - functions to handle a generic `list of strings' structure */ + +/* Copyright (C) 2000-2019 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +#include <stdio.h> +#include <bashansi.h> + +#include "shell.h" + +#ifdef STRDUP +# undef STRDUP +#endif +#define STRDUP(x) ((x) ? savestring (x) : (char *)NULL) + +/* Allocate a new STRINGLIST, with room for N strings. */ + +STRINGLIST * +strlist_create (n) + int n; +{ + STRINGLIST *ret; + register int i; + + ret = (STRINGLIST *)xmalloc (sizeof (STRINGLIST)); + if (n) + { + ret->list = strvec_create (n+1); + ret->list_size = n; + for (i = 0; i < n; i++) + ret->list[i] = (char *)NULL; + } + else + { + ret->list = (char **)NULL; + ret->list_size = 0; + } + ret->list_len = 0; + return ret; +} + +STRINGLIST * +strlist_resize (sl, n) + STRINGLIST *sl; + int n; +{ + register int i; + + if (sl == 0) + return (sl = strlist_create (n)); + + if (n > sl->list_size) + { + sl->list = strvec_resize (sl->list, n + 1); + for (i = sl->list_size; i <= n; i++) + sl->list[i] = (char *)NULL; + sl->list_size = n; + } + return sl; +} + +void +strlist_flush (sl) + STRINGLIST *sl; +{ + if (sl == 0 || sl->list == 0) + return; + strvec_flush (sl->list); + sl->list_len = 0; +} + +void +strlist_dispose (sl) + STRINGLIST *sl; +{ + if (sl == 0) + return; + if (sl->list) + strvec_dispose (sl->list); + free (sl); +} + +int +strlist_remove (sl, s) + STRINGLIST *sl; + char *s; +{ + int r; + + if (sl == 0 || sl->list == 0 || sl->list_len == 0) + return 0; + + r = strvec_remove (sl->list, s); + if (r) + sl->list_len--; + return r; +} + +STRINGLIST * +strlist_copy (sl) + STRINGLIST *sl; +{ + STRINGLIST *new; + register int i; + + if (sl == 0) + return ((STRINGLIST *)0); + new = strlist_create (sl->list_size); + /* I'd like to use strvec_copy, but that doesn't copy everything. */ + if (sl->list) + { + for (i = 0; i < sl->list_size; i++) + new->list[i] = STRDUP (sl->list[i]); + } + new->list_size = sl->list_size; + new->list_len = sl->list_len; + /* just being careful */ + if (new->list) + new->list[new->list_len] = (char *)NULL; + return new; +} + +/* Return a new STRINGLIST with everything from M1 and M2. */ + +STRINGLIST * +strlist_merge (m1, m2) + STRINGLIST *m1, *m2; +{ + STRINGLIST *sl; + int i, n, l1, l2; + + l1 = m1 ? m1->list_len : 0; + l2 = m2 ? m2->list_len : 0; + + sl = strlist_create (l1 + l2 + 1); + for (i = n = 0; i < l1; i++, n++) + sl->list[n] = STRDUP (m1->list[i]); + for (i = 0; i < l2; i++, n++) + sl->list[n] = STRDUP (m2->list[i]); + sl->list_len = n; + sl->list[n] = (char *)NULL; + return (sl); +} + +/* Make STRINGLIST M1 contain everything in M1 and M2. */ +STRINGLIST * +strlist_append (m1, m2) + STRINGLIST *m1, *m2; +{ + register int i, n, len1, len2; + + if (m1 == 0) + return (m2 ? strlist_copy (m2) : (STRINGLIST *)0); + + len1 = m1->list_len; + len2 = m2 ? m2->list_len : 0; + + if (len2) + { + m1 = strlist_resize (m1, len1 + len2 + 1); + for (i = 0, n = len1; i < len2; i++, n++) + m1->list[n] = STRDUP (m2->list[i]); + m1->list[n] = (char *)NULL; + m1->list_len = n; + } + + return m1; +} + +STRINGLIST * +strlist_prefix_suffix (sl, prefix, suffix) + STRINGLIST *sl; + char *prefix, *suffix; +{ + int plen, slen, tlen, llen, i; + char *t; + + if (sl == 0 || sl->list == 0 || sl->list_len == 0) + return sl; + + plen = STRLEN (prefix); + slen = STRLEN (suffix); + + if (plen == 0 && slen == 0) + return (sl); + + for (i = 0; i < sl->list_len; i++) + { + llen = STRLEN (sl->list[i]); + tlen = plen + llen + slen + 1; + t = (char *)xmalloc (tlen + 1); + if (plen) + strcpy (t, prefix); + strcpy (t + plen, sl->list[i]); + if (slen) + strcpy (t + plen + llen, suffix); + free (sl->list[i]); + sl->list[i] = t; + } + + return (sl); +} + +void +strlist_print (sl, prefix) + STRINGLIST *sl; + char *prefix; +{ + register int i; + + if (sl == 0) + return; + for (i = 0; i < sl->list_len; i++) + printf ("%s%s\n", prefix ? prefix : "", sl->list[i]); +} + +void +strlist_walk (sl, func) + STRINGLIST *sl; + sh_strlist_map_func_t *func; +{ + register int i; + + if (sl == 0) + return; + for (i = 0; i < sl->list_len; i++) + if ((*func)(sl->list[i]) < 0) + break; +} + +void +strlist_sort (sl) + STRINGLIST *sl; +{ + if (sl == 0 || sl->list_len == 0 || sl->list == 0) + return; + strvec_sort (sl->list, 0); +} + +STRINGLIST * +strlist_from_word_list (list, alloc, starting_index, ip) + WORD_LIST *list; + int alloc, starting_index, *ip; +{ + STRINGLIST *ret; + int slen, len; + + if (list == 0) + { + if (ip) + *ip = 0; + return ((STRINGLIST *)0); + } + slen = list_length (list); + ret = (STRINGLIST *)xmalloc (sizeof (STRINGLIST)); + ret->list = strvec_from_word_list (list, alloc, starting_index, &len); + ret->list_size = slen + starting_index; + ret->list_len = len; + if (ip) + *ip = len; + return ret; +} + +WORD_LIST * +strlist_to_word_list (sl, alloc, starting_index) + STRINGLIST *sl; + int alloc, starting_index; +{ + WORD_LIST *list; + + if (sl == 0 || sl->list == 0) + return ((WORD_LIST *)NULL); + + list = strvec_to_word_list (sl->list, alloc, starting_index); + return list; +} diff --git a/lib/sh/stringvec.c b/lib/sh/stringvec.c new file mode 100644 index 0000000..8600042 --- /dev/null +++ b/lib/sh/stringvec.c @@ -0,0 +1,272 @@ +/* stringvec.c - functions for managing arrays of strings. */ + +/* Copyright (C) 2000-2002 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#include <bashtypes.h> + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +#include <bashansi.h> +#include <stdio.h> +#include <chartypes.h> + +#include "shell.h" + +/* Allocate an array of strings with room for N members. */ +char ** +strvec_create (n) + int n; +{ + return ((char **)xmalloc ((n) * sizeof (char *))); +} + +/* Allocate an array of strings with room for N members. */ +char ** +strvec_mcreate (n) + int n; +{ + return ((char **)malloc ((n) * sizeof (char *))); +} + +char ** +strvec_resize (array, nsize) + char **array; + int nsize; +{ + return ((char **)xrealloc (array, nsize * sizeof (char *))); +} + +char ** +strvec_mresize (array, nsize) + char **array; + int nsize; +{ + return ((char **)realloc (array, nsize * sizeof (char *))); +} + +/* Return the length of ARRAY, a NULL terminated array of char *. */ +int +strvec_len (array) + char **array; +{ + register int i; + + for (i = 0; array[i]; i++); + return (i); +} + +/* Free the contents of ARRAY, a NULL terminated array of char *. */ +void +strvec_flush (array) + char **array; +{ + register int i; + + if (array == 0) + return; + + for (i = 0; array[i]; i++) + free (array[i]); +} + +void +strvec_dispose (array) + char **array; +{ + if (array == 0) + return; + + strvec_flush (array); + free (array); +} + +int +strvec_remove (array, name) + char **array, *name; +{ + register int i, j; + char *x; + + if (array == 0) + return 0; + + for (i = 0; array[i]; i++) + if (STREQ (name, array[i])) + { + x = array[i]; + for (j = i; array[j]; j++) + array[j] = array[j + 1]; + free (x); + return 1; + } + return 0; +} + +/* Find NAME in ARRAY. Return the index of NAME, or -1 if not present. + ARRAY should be NULL terminated. */ +int +strvec_search (array, name) + char **array, *name; +{ + int i; + + for (i = 0; array[i]; i++) + if (STREQ (name, array[i])) + return (i); + + return (-1); +} + +/* Allocate and return a new copy of ARRAY and its contents. */ +char ** +strvec_copy (array) + char **array; +{ + register int i; + int len; + char **ret; + + len = strvec_len (array); + + ret = (char **)xmalloc ((len + 1) * sizeof (char *)); + for (i = 0; array[i]; i++) + ret[i] = savestring (array[i]); + ret[i] = (char *)NULL; + + return (ret); +} + +/* Comparison routine for use by qsort that conforms to the new Posix + requirements (http://austingroupbugs.net/view.php?id=1070). + + Perform a bytewise comparison if *S1 and *S2 collate equally. */ +int +strvec_posixcmp (s1, s2) + register char **s1, **s2; +{ + int result; + +#if defined (HAVE_STRCOLL) + result = strcoll (*s1, *s2); + if (result != 0) + return result; +#endif + + if ((result = **s1 - **s2) == 0) + result = strcmp (*s1, *s2); + + return (result); +} + +/* Comparison routine for use with qsort() on arrays of strings. Uses + strcoll(3) if available, otherwise it uses strcmp(3). */ +int +strvec_strcmp (s1, s2) + register char **s1, **s2; +{ +#if defined (HAVE_STRCOLL) + return (strcoll (*s1, *s2)); +#else /* !HAVE_STRCOLL */ + int result; + + if ((result = **s1 - **s2) == 0) + result = strcmp (*s1, *s2); + + return (result); +#endif /* !HAVE_STRCOLL */ +} + +/* Sort ARRAY, a null terminated array of pointers to strings. */ +void +strvec_sort (array, posix) + char **array; + int posix; +{ + if (posix) + qsort (array, strvec_len (array), sizeof (char *), (QSFUNC *)strvec_posixcmp); + else + qsort (array, strvec_len (array), sizeof (char *), (QSFUNC *)strvec_strcmp); +} + +/* Cons up a new array of words. The words are taken from LIST, + which is a WORD_LIST *. If ALLOC is true, everything is malloc'ed, + so you should free everything in this array when you are done. + The array is NULL terminated. If IP is non-null, it gets the + number of words in the returned array. STARTING_INDEX says where + to start filling in the returned array; it can be used to reserve + space at the beginning of the array. */ + +char ** +strvec_from_word_list (list, alloc, starting_index, ip) + WORD_LIST *list; + int alloc, starting_index, *ip; +{ + int count; + char **array; + + count = list_length (list); + array = (char **)xmalloc ((1 + count + starting_index) * sizeof (char *)); + + for (count = 0; count < starting_index; count++) + array[count] = (char *)NULL; + for (count = starting_index; list; count++, list = list->next) + array[count] = alloc ? savestring (list->word->word) : list->word->word; + array[count] = (char *)NULL; + + if (ip) + *ip = count; + return (array); +} + +/* Convert an array of strings into the form used internally by the shell. + ALLOC means to allocate new storage for each WORD_DESC in the returned + list rather than copy the values in ARRAY. STARTING_INDEX says where + in ARRAY to begin. */ + +WORD_LIST * +strvec_to_word_list (array, alloc, starting_index) + char **array; + int alloc, starting_index; +{ + WORD_LIST *list; + WORD_DESC *w; + int i, count; + + if (array == 0 || array[0] == 0) + return (WORD_LIST *)NULL; + + for (count = 0; array[count]; count++) + ; + + for (i = starting_index, list = (WORD_LIST *)NULL; i < count; i++) + { + w = make_bare_word (alloc ? array[i] : ""); + if (alloc == 0) + { + free (w->word); + w->word = array[i]; + } + list = make_word_list (w, list); + } + return (REVERSE_LIST (list, WORD_LIST *)); +} diff --git a/lib/sh/strnlen.c b/lib/sh/strnlen.c new file mode 100644 index 0000000..10414d3 --- /dev/null +++ b/lib/sh/strnlen.c @@ -0,0 +1,49 @@ +/* strnlen - return length of passed string, with length limit */ + +/* Copyright (C) 2004 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#if !defined (HAVE_STRNLEN) + +#include <sys/types.h> + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +#include <stdc.h> + +/* Find the length of S, but scan at most MAXLEN characters. If no '\0' + terminator is found within the first MAXLEN characters, return MAXLEN. */ +size_t +strnlen (s, maxlen) + register const char *s; + size_t maxlen; +{ + register const char *e; + size_t n; + + for (e = s, n = 0; *e && n < maxlen; e++, n++) + ; + return n; +} +#endif diff --git a/lib/sh/strpbrk.c b/lib/sh/strpbrk.c new file mode 100644 index 0000000..8cce830 --- /dev/null +++ b/lib/sh/strpbrk.c @@ -0,0 +1,49 @@ +/* strpbrk.c - locate multiple characters in a string */ + +/* Copyright (C) 1991, 1994 Free Software Foundation, Inc. + + NOTE: The canonical source of this file is maintained with the GNU C Library. + Bugs can be reported to bug-glibc@prep.ai.mit.edu. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#if !defined (HAVE_STRPBRK) + +#include <stdc.h> + +/* Find the first occurrence in S of any character in ACCEPT. */ +char * +strpbrk (s, accept) + register const char *s; + register const char *accept; +{ + while (*s != '\0') + { + const char *a = accept; + while (*a != '\0') + if (*a++ == *s) + return (char *) s; + ++s; + } + + return 0; +} +#endif diff --git a/lib/sh/strstr.c b/lib/sh/strstr.c new file mode 100644 index 0000000..c43b05e --- /dev/null +++ b/lib/sh/strstr.c @@ -0,0 +1,125 @@ +/* strstr - find a substring within a string */ + +/* Copyright (C) 1994, 1999 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +/* + * My personal strstr() implementation that beats most other algorithms. + * Until someone tells me otherwise, I assume that this is the + * fastest implementation of strstr() in C. + * I deliberately chose not to comment it. You should have at least + * as much fun trying to understand it, as I had to write it :-). + * + * Stephen R. van den Berg, berg@pool.informatik.rwth-aachen.de */ + +#if HAVE_CONFIG_H +# include <config.h> +#endif + +#if defined _LIBC || defined HAVE_STRING_H +# include <string.h> +#endif +#include <sys/types.h> + +typedef unsigned chartype; + +#undef strstr + +char * +strstr (const char *phaystack, const char *pneedle) +{ + register const unsigned char *haystack, *needle; + register chartype b, c; + + haystack = (const unsigned char *) phaystack; + needle = (const unsigned char *) pneedle; + + b = *needle; + if (b != '\0') + { + haystack--; /* possible ANSI violation */ + do + { + c = *++haystack; + if (c == '\0') + goto ret0; + } + while (c != b); + + c = *++needle; + if (c == '\0') + goto foundneedle; + ++needle; + goto jin; + + for (;;) + { + register chartype a; + register const unsigned char *rhaystack, *rneedle; + + do + { + a = *++haystack; + if (a == '\0') + goto ret0; + if (a == b) + break; + a = *++haystack; + if (a == '\0') + goto ret0; +shloop:; } + while (a != b); + +jin: a = *++haystack; + if (a == '\0') + goto ret0; + + if (a != c) + goto shloop; + + rhaystack = haystack-- + 1; + rneedle = needle; + a = *rneedle; + + if (*rhaystack == a) + do + { + if (a == '\0') + goto foundneedle; + ++rhaystack; + a = *++needle; + if (*rhaystack != a) + break; + if (a == '\0') + goto foundneedle; + ++rhaystack; + a = *++needle; + } + while (*rhaystack == a); + + needle = rneedle; /* took the register-poor approach */ + + if (a == '\0') + break; + } + } +foundneedle: + return (char*) haystack; +ret0: + return 0; +} diff --git a/lib/sh/strtod.c b/lib/sh/strtod.c new file mode 100644 index 0000000..55e1154 --- /dev/null +++ b/lib/sh/strtod.c @@ -0,0 +1,207 @@ +/* strtod.c - convert string to double-precision floating-point value. */ + +/* Copyright (C) 1991, 1992 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#if HAVE_CONFIG_H +# include <config.h> +#endif + +#ifndef HAVE_STRTOD + +#include <errno.h> +#ifndef errno +extern int errno; +#endif + +#include <chartypes.h> +#include <math.h> + +#if HAVE_FLOAT_H +# include <float.h> +#else +# define DBL_MAX 1.7976931348623159e+308 +# define DBL_MIN 2.2250738585072010e-308 +#endif + +#include <bashansi.h> + +#ifndef NULL +# define NULL 0 +#endif + +#ifndef HUGE_VAL +# define HUGE_VAL HUGE +#endif + +#ifndef locale_decpoint +extern int locale_decpoint PARAMS((void)); +#endif + +/* Convert NPTR to a double. If ENDPTR is not NULL, a pointer to the + character after the last one used in the number is put in *ENDPTR. */ +double +strtod (nptr, endptr) + const char *nptr; + char **endptr; +{ + register const char *s; + short sign; + + /* The number so far. */ + double num; + + int radixchar; + int got_dot; /* Found a decimal point. */ + int got_digit; /* Seen any digits. */ + + /* The exponent of the number. */ + long int exponent; + + if (nptr == NULL) + { + errno = EINVAL; + goto noconv; + } + + s = nptr; + + /* Eat whitespace. */ + while (ISSPACE ((unsigned char)*s)) + ++s; + + /* Get the sign. */ + sign = *s == '-' ? -1 : 1; + if (*s == '-' || *s == '+') + ++s; + + radixchar = locale_decpoint (); + num = 0.0; + got_dot = 0; + got_digit = 0; + exponent = 0; + for (;; ++s) + { + if (DIGIT (*s)) + { + got_digit = 1; + + /* Make sure that multiplication by 10 will not overflow. */ + if (num > DBL_MAX * 0.1) + /* The value of the digit doesn't matter, since we have already + gotten as many digits as can be represented in a `double'. + This doesn't necessarily mean the result will overflow. + The exponent may reduce it to within range. + + We just need to record that there was another + digit so that we can multiply by 10 later. */ + ++exponent; + else + num = (num * 10.0) + (*s - '0'); + + /* Keep track of the number of digits after the decimal point. + If we just divided by 10 here, we would lose precision. */ + if (got_dot) + --exponent; + } + else if (!got_dot && *s == radixchar) + /* Record that we have found the decimal point. */ + got_dot = 1; + else + /* Any other character terminates the number. */ + break; + } + + if (!got_digit) + goto noconv; + + if (TOLOWER ((unsigned char)*s) == 'e') + { + /* Get the exponent specified after the `e' or `E'. */ + int save = errno; + char *end; + long int exp; + + errno = 0; + ++s; + exp = strtol (s, &end, 10); + if (errno == ERANGE) + { + /* The exponent overflowed a `long int'. It is probably a safe + assumption that an exponent that cannot be represented by + a `long int' exceeds the limits of a `double'. */ + if (endptr != NULL) + *endptr = end; + if (exp < 0) + goto underflow; + else + goto overflow; + } + else if (end == s) + /* There was no exponent. Reset END to point to + the 'e' or 'E', so *ENDPTR will be set there. */ + end = (char *) s - 1; + errno = save; + s = end; + exponent += exp; + } + + if (endptr != NULL) + *endptr = (char *) s; + + if (num == 0.0) + return 0.0; + + /* Multiply NUM by 10 to the EXPONENT power, + checking for overflow and underflow. */ + + if (exponent < 0) + { + if (num < DBL_MIN * pow (10.0, (double) -exponent)) + goto underflow; + } + else if (exponent > 0) + { + if (num > DBL_MAX * pow (10.0, (double) -exponent)) + goto overflow; + } + + num *= pow (10.0, (double) exponent); + + return num * sign; + +overflow: + /* Return an overflow error. */ + errno = ERANGE; + return HUGE_VAL * sign; + +underflow: + /* Return an underflow error. */ + if (endptr != NULL) + *endptr = (char *) nptr; + errno = ERANGE; + return 0.0; + +noconv: + /* There was no number. */ + if (endptr != NULL) + *endptr = (char *) nptr; + return 0.0; +} + +#endif /* !HAVE_STRTOD */ diff --git a/lib/sh/strtoimax.c b/lib/sh/strtoimax.c new file mode 100644 index 0000000..676e02e --- /dev/null +++ b/lib/sh/strtoimax.c @@ -0,0 +1,113 @@ +/* strtoimax - convert string representation of a number into an intmax_t value. */ + +/* Copyright 1999-2020 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +/* Written by Paul Eggert. Modified by Chet Ramey for Bash. */ + +#if HAVE_CONFIG_H +# include <config.h> +#endif + +#if HAVE_INTTYPES_H +# include <inttypes.h> +#endif + +#if HAVE_STDINT_H +# include <stdint.h> +#endif + +#if HAVE_STDLIB_H +# include <stdlib.h> +#endif + +#include <stdc.h> + +/* Verify a requirement at compile-time (unlike assert, which is runtime). */ +#define verify(name, assertion) struct name { char a[(assertion) ? 1 : -1]; } + +#ifndef HAVE_DECL_STRTOL +"this configure-time declaration test was not run" +#endif +#if !HAVE_DECL_STRTOL +extern long strtol PARAMS((const char *, char **, int)); +#endif + +#ifndef HAVE_DECL_STRTOLL +"this configure-time declaration test was not run" +#endif +#if !HAVE_DECL_STRTOLL && HAVE_LONG_LONG +extern long long strtoll PARAMS((const char *, char **, int)); +#endif + +#ifdef strtoimax +#undef strtoimax +#endif + +intmax_t +strtoimax (ptr, endptr, base) + const char *ptr; + char **endptr; + int base; +{ +#if HAVE_LONG_LONG + verify(size_is_that_of_long_or_long_long, + (sizeof (intmax_t) == sizeof (long) || + sizeof (intmax_t) == sizeof (long long))); + + if (sizeof (intmax_t) != sizeof (long)) + return (strtoll (ptr, endptr, base)); +#else + verify (size_is_that_of_long, sizeof (intmax_t) == sizeof (long)); +#endif + + return (strtol (ptr, endptr, base)); +} + +#ifdef TESTING +# include <stdio.h> +int +main () +{ + char *p, *endptr; + intmax_t x; +#if HAVE_LONG_LONG + long long y; +#endif + long z; + + printf ("sizeof intmax_t: %d\n", sizeof (intmax_t)); + +#if HAVE_LONG_LONG + printf ("sizeof long long: %d\n", sizeof (long long)); +#endif + printf ("sizeof long: %d\n", sizeof (long)); + + x = strtoimax("42", &endptr, 10); +#if HAVE_LONG_LONG + y = strtoll("42", &endptr, 10); +#else + y = -1; +#endif + z = strtol("42", &endptr, 10); + + printf ("%lld %lld %ld\n", x, y, z); + + exit (0); +} +#endif diff --git a/lib/sh/strtol.c b/lib/sh/strtol.c new file mode 100644 index 0000000..8aa7478 --- /dev/null +++ b/lib/sh/strtol.c @@ -0,0 +1,259 @@ +/* strtol - convert string representation of a number into a long integer value. */ + +/* Copyright (C) 1991,92,94,95,96,97,98,99,2000,2001 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#if !defined (HAVE_STRTOL) + +#include <chartypes.h> +#include <errno.h> + +#ifndef errno +extern int errno; +#endif + +#ifndef __set_errno +# define __set_errno(Val) errno = (Val) +#endif + +#ifdef HAVE_LIMITS_H +# include <limits.h> +#endif + +#include <typemax.h> + +#include <stdc.h> +#include <bashansi.h> + +#ifndef NULL +# define NULL 0 +#endif + +/* Nonzero if we are defining `strtoul' or `strtoull', operating on + unsigned integers. */ +#ifndef UNSIGNED +# define UNSIGNED 0 +# define INT LONG int +#else +# define INT unsigned LONG int +#endif + +#if UNSIGNED +# ifdef QUAD +# define strtol strtoull +# else +# define strtol strtoul +# endif +#else +# ifdef QUAD +# define strtol strtoll +# endif +#endif + +/* If QUAD is defined, we are defining `strtoll' or `strtoull', + operating on `long long ints. */ + +#ifdef QUAD +# define LONG long long +# define STRTOL_LONG_MIN LLONG_MIN +# define STRTOL_LONG_MAX LLONG_MAX +# define STRTOL_ULONG_MAX ULLONG_MAX +#else /* !QUAD */ +# define LONG long +# define STRTOL_LONG_MIN LONG_MIN +# define STRTOL_LONG_MAX LONG_MAX +# define STRTOL_ULONG_MAX ULONG_MAX +#endif + +/* Convert NPTR to an `unsigned long int' or `long int' in base BASE. + If BASE is 0 the base is determined by the presence of a leading + zero, indicating octal or a leading "0x" or "0X", indicating hexadecimal. + If BASE is < 2 or > 36, it is no longer reset to 10; EINVAL is returned. + If ENDPTR is not NULL, a pointer to the character after the last + one converted is stored in *ENDPTR. */ + +INT +strtol (nptr, endptr, base) + const char *nptr; + char **endptr; + int base; +{ + int negative; + register unsigned LONG int cutoff; + register unsigned int cutlim; + register unsigned LONG int i; + register const char *s; + register unsigned char c; + const char *save, *end; + int overflow; + + if (base < 0 || base == 1 || base > 36) + { + __set_errno (EINVAL); + return 0; + } + + save = s = nptr; + + /* Skip white space. */ + while (ISSPACE ((unsigned char)*s)) + ++s; + if (*s == '\0') + goto noconv; + + /* Check for a sign. */ + if (*s == '-' || *s == '+') + { + negative = (*s == '-'); + ++s; + } + else + negative = 0; + + /* Recognize number prefix and if BASE is zero, figure it out ourselves. */ + if (*s == '0') + { + if ((base == 0 || base == 16) && TOUPPER ((unsigned char) s[1]) == 'X') + { + s += 2; + base = 16; + } + else if (base == 0) + base = 8; + } + else if (base == 0) + base = 10; + + /* Save the pointer so we can check later if anything happened. */ + save = s; + + end = NULL; + + cutoff = STRTOL_ULONG_MAX / (unsigned LONG int) base; + cutlim = STRTOL_ULONG_MAX % (unsigned LONG int) base; + + overflow = 0; + i = 0; + c = *s; + if (sizeof (long int) != sizeof (LONG int)) + { + unsigned long int j = 0; + unsigned long int jmax = ULONG_MAX / base; + + for (;c != '\0'; c = *++s) + { + if (s == end) + break; + if (DIGIT (c)) + c -= '0'; + else if (ISALPHA (c)) + c = TOUPPER (c) - 'A' + 10; + else + break; + + if ((int) c >= base) + break; + /* Note that we never can have an overflow. */ + else if (j >= jmax) + { + /* We have an overflow. Now use the long representation. */ + i = (unsigned LONG int) j; + goto use_long; + } + else + j = j * (unsigned long int) base + c; + } + + i = (unsigned LONG int) j; + } + else + for (;c != '\0'; c = *++s) + { + if (s == end) + break; + if (DIGIT (c)) + c -= '0'; + else if (ISALPHA (c)) + c = TOUPPER (c) - 'A' + 10; + else + break; + if ((int) c >= base) + break; + /* Check for overflow. */ + if (i > cutoff || (i == cutoff && c > cutlim)) + overflow = 1; + else + { + use_long: + i *= (unsigned LONG int) base; + i += c; + } + } + + /* Check if anything actually happened. */ + if (s == save) + goto noconv; + + /* Store in ENDPTR the address of one character + past the last character we converted. */ + if (endptr != NULL) + *endptr = (char *) s; + +#if !UNSIGNED + /* Check for a value that is within the range of + `unsigned LONG int', but outside the range of `LONG int'. */ + if (overflow == 0 + && i > (negative + ? -((unsigned LONG int) (STRTOL_LONG_MIN + 1)) + 1 + : (unsigned LONG int) STRTOL_LONG_MAX)) + overflow = 1; +#endif + + if (overflow) + { + __set_errno (ERANGE); +#if UNSIGNED + return STRTOL_ULONG_MAX; +#else + return negative ? STRTOL_LONG_MIN : STRTOL_LONG_MAX; +#endif + } + + /* Return the result of the appropriate sign. */ + return negative ? -i : i; + +noconv: + /* We must handle a special case here: the base is 0 or 16 and the + first two characters are '0' and 'x', but the rest are no + hexadecimal digits. This is no error case. We return 0 and + ENDPTR points to the `x`. */ + if (endptr != NULL) + { + if (save - nptr >= 2 && TOUPPER ((unsigned char) save[-1]) == 'X' && save[-2] == '0') + *endptr = (char *) &save[-1]; + else + /* There was no number to convert. */ + *endptr = (char *) nptr; + } + + return 0L; +} + +#endif /* !HAVE_STRTOL */ diff --git a/lib/sh/strtoll.c b/lib/sh/strtoll.c new file mode 100644 index 0000000..f6060ee --- /dev/null +++ b/lib/sh/strtoll.c @@ -0,0 +1,30 @@ +/* strtoll - convert string representation of a number into a long long value. */ + +/* Copyright (C) 1997 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#if defined (HAVE_LONG_LONG) && !defined (HAVE_STRTOLL) + +#define QUAD 1 +#undef HAVE_STRTOL + +#include "strtol.c" + +#endif /* HAVE_LONG_LONG && !HAVE_STRTOLL */ diff --git a/lib/sh/strtoul.c b/lib/sh/strtoul.c new file mode 100644 index 0000000..cbaa484 --- /dev/null +++ b/lib/sh/strtoul.c @@ -0,0 +1,30 @@ +/* strtoul - convert string representation of a number into an unsigned long value. */ + +/* Copyright (C) 1997 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#ifndef HAVE_STRTOUL + +#define UNSIGNED 1 +#undef HAVE_STRTOL + +#include <strtol.c> + +#endif /* !HAVE_STRTOUL */ diff --git a/lib/sh/strtoull.c b/lib/sh/strtoull.c new file mode 100644 index 0000000..02ddebb --- /dev/null +++ b/lib/sh/strtoull.c @@ -0,0 +1,31 @@ +/* strtoull - convert string representation of a number into an unsigned long long value. */ + +/* Copyright (C) 1997 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#if defined (HAVE_LONG_LONG) && !defined (HAVE_STRTOULL) + +#define QUAD 1 +#define UNSIGNED 1 +#undef HAVE_STRTOL + +#include "strtol.c" + +#endif /* HAVE_LONG_LONG && !HAVE_STRTOULL */ diff --git a/lib/sh/strtoumax.c b/lib/sh/strtoumax.c new file mode 100644 index 0000000..0247e57 --- /dev/null +++ b/lib/sh/strtoumax.c @@ -0,0 +1,113 @@ +/* strtoumax - convert string representation of a number into an uintmax_t value. */ + +/* Copyright 1999-2020 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +/* Written by Paul Eggert. Modified by Chet Ramey for Bash. */ + +#if HAVE_CONFIG_H +# include <config.h> +#endif + +#if HAVE_INTTYPES_H +# include <inttypes.h> +#endif + +#if HAVE_STDINT_H +# include <stdint.h> +#endif + +#if HAVE_STDLIB_H +# include <stdlib.h> +#endif + +#include <stdc.h> + +/* Verify a requirement at compile-time (unlike assert, which is runtime). */ +#define verify(name, assertion) struct name { char a[(assertion) ? 1 : -1]; } + +#ifndef HAVE_DECL_STRTOUL +"this configure-time declaration test was not run" +#endif +#if !HAVE_DECL_STRTOUL +extern unsigned long strtoul PARAMS((const char *, char **, int)); +#endif + +#ifndef HAVE_DECL_STRTOULL +"this configure-time declaration test was not run" +#endif +#if !HAVE_DECL_STRTOULL && HAVE_UNSIGNED_LONG_LONG +extern unsigned long long strtoull PARAMS((const char *, char **, int)); +#endif + +#ifdef strtoumax +#undef strtoumax +#endif + +uintmax_t +strtoumax (ptr, endptr, base) + const char *ptr; + char **endptr; + int base; +{ +#if HAVE_UNSIGNED_LONG_LONG + verify (size_is_that_of_unsigned_long_or_unsigned_long_long, + (sizeof (uintmax_t) == sizeof (unsigned long) || + sizeof (uintmax_t) == sizeof (unsigned long long))); + + if (sizeof (uintmax_t) != sizeof (unsigned long)) + return (strtoull (ptr, endptr, base)); +#else + verify (size_is_that_of_unsigned_long, sizeof (uintmax_t) == sizeof (unsigned long)); +#endif + + return (strtoul (ptr, endptr, base)); +} + +#ifdef TESTING +# include <stdio.h> +int +main () +{ + char *p, *endptr; + uintmax_t x; +#if HAVE_UNSIGNED_LONG_LONG + unsigned long long y; +#endif + unsigned long z; + + printf ("sizeof uintmax_t: %d\n", sizeof (uintmax_t)); + +#if HAVE_UNSIGNED_LONG_LONG + printf ("sizeof unsigned long long: %d\n", sizeof (unsigned long long)); +#endif + printf ("sizeof unsigned long: %d\n", sizeof (unsigned long)); + + x = strtoumax("42", &endptr, 10); +#if HAVE_LONG_LONG + y = strtoull("42", &endptr, 10); +#else + y = 0; +#endif + z = strtoul("42", &endptr, 10); + + printf ("%llu %llu %lu\n", x, y, z); + + exit (0); +} +#endif diff --git a/lib/sh/strtrans.c b/lib/sh/strtrans.c new file mode 100644 index 0000000..b2b1acc --- /dev/null +++ b/lib/sh/strtrans.c @@ -0,0 +1,400 @@ +/* strtrans.c - Translate and untranslate strings with ANSI-C escape sequences. */ + +/* Copyright (C) 2000-2015 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +#include <bashansi.h> +#include <stdio.h> +#include <chartypes.h> + +#include "shell.h" + +#include "shmbchar.h" +#include "shmbutil.h" + +#ifdef ESC +#undef ESC +#endif +#define ESC '\033' /* ASCII */ + +/* Convert STRING by expanding the escape sequences specified by the + ANSI C standard. If SAWC is non-null, recognize `\c' and use that + as a string terminator. If we see \c, set *SAWC to 1 before + returning. LEN is the length of STRING. If (FLAGS&1) is non-zero, + that we're translating a string for `echo -e', and therefore should not + treat a single quote as a character that may be escaped with a backslash. + If (FLAGS&2) is non-zero, we're expanding for the parser and want to + quote CTLESC and CTLNUL with CTLESC. If (flags&4) is non-zero, we want + to remove the backslash before any unrecognized escape sequence. */ +char * +ansicstr (string, len, flags, sawc, rlen) + char *string; + int len, flags, *sawc, *rlen; +{ + int c, temp; + char *ret, *r, *s; + unsigned long v; + size_t clen; + int b, mb_cur_max; +#if defined (HANDLE_MULTIBYTE) + wchar_t wc; +#endif + + if (string == 0 || *string == '\0') + return ((char *)NULL); + + mb_cur_max = MB_CUR_MAX; +#if defined (HANDLE_MULTIBYTE) + temp = 4*len + 4; + if (temp < 12) + temp = 12; /* ensure enough for eventual u32cesc */ + ret = (char *)xmalloc (temp); +#else + ret = (char *)xmalloc (2*len + 1); /* 2*len for possible CTLESC */ +#endif + for (r = ret, s = string; s && *s; ) + { + c = *s++; + if (c != '\\' || *s == '\0') + { + clen = 1; +#if defined (HANDLE_MULTIBYTE) + if ((locale_utf8locale && (c & 0x80)) || + (locale_utf8locale == 0 && mb_cur_max > 0 && is_basic (c) == 0)) + { + clen = mbrtowc (&wc, s - 1, mb_cur_max, 0); + if (MB_INVALIDCH (clen)) + clen = 1; + } +#endif + *r++ = c; + for (--clen; clen > 0; clen--) + *r++ = *s++; + } + else + { + switch (c = *s++) + { +#if defined (__STDC__) + case 'a': c = '\a'; break; + case 'v': c = '\v'; break; +#else + case 'a': c = (int) 0x07; break; + case 'v': c = (int) 0x0B; break; +#endif + case 'b': c = '\b'; break; + case 'e': case 'E': /* ESC -- non-ANSI */ + c = ESC; break; + case 'f': c = '\f'; break; + case 'n': c = '\n'; break; + case 'r': c = '\r'; break; + case 't': c = '\t'; break; + case '1': case '2': case '3': + case '4': case '5': case '6': + case '7': +#if 1 + if (flags & 1) + { + *r++ = '\\'; + break; + } + /*FALLTHROUGH*/ +#endif + case '0': + /* If (FLAGS & 1), we're translating a string for echo -e (or + the equivalent xpg_echo option), so we obey the SUSv3/ + POSIX-2001 requirement and accept 0-3 octal digits after + a leading `0'. */ + temp = 2 + ((flags & 1) && (c == '0')); + for (c -= '0'; ISOCTAL (*s) && temp--; s++) + c = (c * 8) + OCTVALUE (*s); + c &= 0xFF; + break; + case 'x': /* Hex digit -- non-ANSI */ + if ((flags & 2) && *s == '{') + { + flags |= 16; /* internal flag value */ + s++; + } + /* Consume at least two hex characters */ + for (temp = 2, c = 0; ISXDIGIT ((unsigned char)*s) && temp--; s++) + c = (c * 16) + HEXVALUE (*s); + /* DGK says that after a `\x{' ksh93 consumes ISXDIGIT chars + until a non-xdigit or `}', so potentially more than two + chars are consumed. */ + if (flags & 16) + { + for ( ; ISXDIGIT ((unsigned char)*s); s++) + c = (c * 16) + HEXVALUE (*s); + flags &= ~16; + if (*s == '}') + s++; + } + /* \x followed by non-hex digits is passed through unchanged */ + else if (temp == 2) + { + *r++ = '\\'; + c = 'x'; + } + c &= 0xFF; + break; +#if defined (HANDLE_MULTIBYTE) + case 'u': + case 'U': + temp = (c == 'u') ? 4 : 8; /* \uNNNN \UNNNNNNNN */ + for (v = 0; ISXDIGIT ((unsigned char)*s) && temp--; s++) + v = (v * 16) + HEXVALUE (*s); + if (temp == ((c == 'u') ? 4 : 8)) + { + *r++ = '\\'; /* c remains unchanged */ + break; + } + else if (v <= 0x7f) /* <= 0x7f translates directly */ + { + c = v; + break; + } + else + { + temp = u32cconv (v, r); + r += temp; + continue; + } +#endif + case '\\': + break; + case '\'': case '"': case '?': + if (flags & 1) + *r++ = '\\'; + break; + case 'c': + if (sawc) + { + *sawc = 1; + *r = '\0'; + if (rlen) + *rlen = r - ret; + return ret; + } + else if ((flags & 1) == 0 && *s == 0) + ; /* pass \c through */ + else if ((flags & 1) == 0 && (c = *s)) + { + s++; + if ((flags & 2) && c == '\\' && c == *s) + s++; /* Posix requires $'\c\\' do backslash escaping */ + c = TOCTRL(c); + break; + } + /*FALLTHROUGH*/ + default: + if ((flags & 4) == 0) + *r++ = '\\'; + break; + } + if ((flags & 2) && (c == CTLESC || c == CTLNUL)) + *r++ = CTLESC; + *r++ = c; + } + } + *r = '\0'; + if (rlen) + *rlen = r - ret; + return ret; +} + +/* Take a string STR, possibly containing non-printing characters, and turn it + into a $'...' ANSI-C style quoted string. Returns a new string. */ +char * +ansic_quote (str, flags, rlen) + char *str; + int flags, *rlen; +{ + char *r, *ret, *s; + int l, rsize; + unsigned char c; + size_t clen; + int b; +#if defined (HANDLE_MULTIBYTE) + wchar_t wc; +#endif + + if (str == 0 || *str == 0) + return ((char *)0); + + l = strlen (str); + rsize = 4 * l + 4; + r = ret = (char *)xmalloc (rsize); + + *r++ = '$'; + *r++ = '\''; + + for (s = str; c = *s; s++) + { + b = l = 1; /* 1 == add backslash; 0 == no backslash */ + clen = 1; + + switch (c) + { + case ESC: c = 'E'; break; +#ifdef __STDC__ + case '\a': c = 'a'; break; + case '\v': c = 'v'; break; +#else + case 0x07: c = 'a'; break; + case 0x0b: c = 'v'; break; +#endif + + case '\b': c = 'b'; break; + case '\f': c = 'f'; break; + case '\n': c = 'n'; break; + case '\r': c = 'r'; break; + case '\t': c = 't'; break; + case '\\': + case '\'': + break; + default: +#if defined (HANDLE_MULTIBYTE) + b = is_basic (c); + /* XXX - clen comparison to 0 is dicey */ + if ((b == 0 && ((clen = mbrtowc (&wc, s, MB_CUR_MAX, 0)) < 0 || MB_INVALIDCH (clen) || iswprint (wc) == 0)) || + (b == 1 && ISPRINT (c) == 0)) +#else + if (ISPRINT (c) == 0) +#endif + { + *r++ = '\\'; + *r++ = TOCHAR ((c >> 6) & 07); + *r++ = TOCHAR ((c >> 3) & 07); + *r++ = TOCHAR (c & 07); + continue; + } + l = 0; + break; + } + if (b == 0 && clen == 0) + break; + + if (l) + *r++ = '\\'; + + if (clen == 1) + *r++ = c; + else + { + for (b = 0; b < (int)clen; b++) + *r++ = (unsigned char)s[b]; + s += clen - 1; /* -1 because of the increment above */ + } + } + + *r++ = '\''; + *r = '\0'; + if (rlen) + *rlen = r - ret; + return ret; +} + +#if defined (HANDLE_MULTIBYTE) +int +ansic_wshouldquote (string) + const char *string; +{ + const wchar_t *wcs; + wchar_t wcc; + wchar_t *wcstr = NULL; + size_t slen; + + slen = mbstowcs (wcstr, string, 0); + + if (slen == (size_t)-1) + return 1; + + wcstr = (wchar_t *)xmalloc (sizeof (wchar_t) * (slen + 1)); + mbstowcs (wcstr, string, slen + 1); + + for (wcs = wcstr; wcc = *wcs; wcs++) + if (iswprint(wcc) == 0) + { + free (wcstr); + return 1; + } + + free (wcstr); + return 0; +} +#endif + +/* return 1 if we need to quote with $'...' because of non-printing chars. */ +int +ansic_shouldquote (string) + const char *string; +{ + const char *s; + unsigned char c; + + if (string == 0) + return 0; + + for (s = string; c = *s; s++) + { +#if defined (HANDLE_MULTIBYTE) + if (is_basic (c) == 0) + return (ansic_wshouldquote (s)); +#endif + if (ISPRINT (c) == 0) + return 1; + } + + return 0; +} + +/* $'...' ANSI-C expand the portion of STRING between START and END and + return the result. The result cannot be longer than the input string. */ +char * +ansiexpand (string, start, end, lenp) + char *string; + int start, end, *lenp; +{ + char *temp, *t; + int len, tlen; + + temp = (char *)xmalloc (end - start + 1); + for (tlen = 0, len = start; len < end; ) + temp[tlen++] = string[len++]; + temp[tlen] = '\0'; + + if (*temp) + { + t = ansicstr (temp, tlen, 2, (int *)NULL, lenp); + free (temp); + return (t); + } + else + { + if (lenp) + *lenp = 0; + return (temp); + } +} diff --git a/lib/sh/times.c b/lib/sh/times.c new file mode 100644 index 0000000..2423078 --- /dev/null +++ b/lib/sh/times.c @@ -0,0 +1,77 @@ +/* times.c - times(3) library function */ + +/* Copyright (C) 1999-2020 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#if !defined (HAVE_TIMES) + +#include <sys/types.h> +#include <posixtime.h> +#include <systimes.h> + +#if defined (HAVE_SYS_RESOURCE_H) && defined (HAVE_GETRUSAGE) +# include <sys/resource.h> +#endif /* HAVE_SYS_RESOURCE_H && HAVE_GETRUSAGE */ + +extern long get_clk_tck PARAMS((void)); + +#define CONVTCK(r) (r.tv_sec * clk_tck + r.tv_usec / (1000000 / clk_tck)) + +clock_t +times(tms) + struct tms *tms; +{ + clock_t rv; + static long clk_tck = -1; + +#if defined (HAVE_GETRUSAGE) + struct timeval tv; + struct rusage ru; + + if (clk_tck == -1) + clk_tck = get_clk_tck(); + + if (getrusage(RUSAGE_SELF, &ru) < 0) + return ((clock_t)-1); + tms->tms_utime = CONVTCK(ru.ru_utime); + tms->tms_stime = CONVTCK(ru.ru_stime); + + if (getrusage(RUSAGE_CHILDREN, &ru) < 0) + return ((clock_t)-1); + tms->tms_cutime = CONVTCK(ru.ru_utime); + tms->tms_cstime = CONVTCK(ru.ru_stime); + + if (gettimeofday(&tv, NULL) < 0) + return ((clock_t)-1); + rv = (clock_t)(CONVTCK(tv)); +#else /* !HAVE_GETRUSAGE */ + if (clk_tck == -1) + clk_tck = get_clk_tck(); + + /* We can't do anything. */ + tms->tms_utime = tms->tms_stime = (clock_t)0; + tms->tms_cutime = tms->tms_cstime = (clock_t)0; + + rv = (clock_t)time((time_t *)0) * clk_tck; +# endif /* HAVE_GETRUSAGE */ + + return rv; +} +#endif /* !HAVE_TIMES */ diff --git a/lib/sh/timeval.c b/lib/sh/timeval.c new file mode 100644 index 0000000..f2ca762 --- /dev/null +++ b/lib/sh/timeval.c @@ -0,0 +1,179 @@ +/* timeval.c - functions to perform operations on struct timevals */ + +/* Copyright (C) 1999 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#if defined (HAVE_TIMEVAL) + +#include <sys/types.h> +#include <posixtime.h> + +#include <bashintl.h> +#include <stdc.h> + +#ifndef locale_decpoint +extern int locale_decpoint PARAMS((void)); +#endif + +#include <stdio.h> + +struct timeval * +difftimeval (d, t1, t2) + struct timeval *d, *t1, *t2; +{ + d->tv_sec = t2->tv_sec - t1->tv_sec; + d->tv_usec = t2->tv_usec - t1->tv_usec; + if (d->tv_usec < 0) + { + d->tv_usec += 1000000; + d->tv_sec -= 1; + if (d->tv_sec < 0) /* ??? -- BSD/OS does this */ + { + d->tv_sec = 0; + d->tv_usec = 0; + } + } + return d; +} + +struct timeval * +addtimeval (d, t1, t2) + struct timeval *d, *t1, *t2; +{ + d->tv_sec = t1->tv_sec + t2->tv_sec; + d->tv_usec = t1->tv_usec + t2->tv_usec; + if (d->tv_usec >= 1000000) + { + d->tv_usec -= 1000000; + d->tv_sec += 1; + } + return d; +} + +struct timeval * +multimeval (d, m) + struct timeval *d; + int m; +{ + time_t t; + + t = d->tv_usec * m; + d->tv_sec = d->tv_sec * m + t / 1000000; + d->tv_usec = t % 1000000; + return d; +} + +struct timeval * +divtimeval (d, m) + struct timeval *d; + int m; +{ + time_t t; + + t = d->tv_sec; + d->tv_sec = t / m; + d->tv_usec = (d->tv_usec + 1000000 * (t % m)) / m; + return d; +} + +/* Do "cpu = ((user + sys) * 10000) / real;" with timevals. + Barely-tested code from Deven T. Corzine <deven@ties.org>. */ +int +timeval_to_cpu (rt, ut, st) + struct timeval *rt, *ut, *st; /* real, user, sys */ +{ + struct timeval t1, t2; + register int i; + + addtimeval (&t1, ut, st); + t2.tv_sec = rt->tv_sec; + t2.tv_usec = rt->tv_usec; + + for (i = 0; i < 6; i++) + { + if ((t1.tv_sec > 99999999) || (t2.tv_sec > 99999999)) + break; + t1.tv_sec *= 10; + t1.tv_sec += t1.tv_usec / 100000; + t1.tv_usec *= 10; + t1.tv_usec %= 1000000; + t2.tv_sec *= 10; + t2.tv_sec += t2.tv_usec / 100000; + t2.tv_usec *= 10; + t2.tv_usec %= 1000000; + } + for (i = 0; i < 4; i++) + { + if (t1.tv_sec < 100000000) + t1.tv_sec *= 10; + else + t2.tv_sec /= 10; + } + + return ((t2.tv_sec == 0) ? 0 : t1.tv_sec / t2.tv_sec); +} + +/* Convert a pointer to a struct timeval to seconds and thousandths of a + second, returning the values in *SP and *SFP, respectively. This does + rounding on the fractional part, not just truncation to three places. */ +void +timeval_to_secs (tvp, sp, sfp) + struct timeval *tvp; + time_t *sp; + int *sfp; +{ + int rest; + + *sp = tvp->tv_sec; + + *sfp = tvp->tv_usec % 1000000; /* pretty much a no-op */ + rest = *sfp % 1000; + *sfp = (*sfp * 1000) / 1000000; + if (rest >= 500) + *sfp += 1; + + /* Sanity check */ + if (*sfp >= 1000) + { + *sp += 1; + *sfp -= 1000; + } +} + +/* Print the contents of a struct timeval * in a standard way to stdio + stream FP. */ +void +print_timeval (fp, tvp) + FILE *fp; + struct timeval *tvp; +{ + time_t timestamp; + long minutes; + int seconds, seconds_fraction; + + timeval_to_secs (tvp, ×tamp, &seconds_fraction); + + minutes = timestamp / 60; + seconds = timestamp % 60; + + fprintf (fp, "%ldm%d%c%03ds", minutes, seconds, locale_decpoint (), seconds_fraction); +} + +#endif /* HAVE_TIMEVAL */ diff --git a/lib/sh/tmpfile.c b/lib/sh/tmpfile.c new file mode 100644 index 0000000..ef8b067 --- /dev/null +++ b/lib/sh/tmpfile.c @@ -0,0 +1,311 @@ +/* + * tmpfile.c - functions to create and safely open temp files for the shell. + */ + +/* Copyright (C) 2000-2020 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#include <bashtypes.h> +#include <posixstat.h> +#include <posixtime.h> +#include <filecntl.h> + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +#include <bashansi.h> + +#include <stdio.h> +#include <errno.h> + +#include <shell.h> + +#ifndef errno +extern int errno; +#endif + +#define BASEOPENFLAGS (O_CREAT | O_TRUNC | O_EXCL | O_BINARY) + +#define DEFAULT_TMPDIR "." /* bogus default, should be changed */ +#define DEFAULT_NAMEROOT "shtmp" + +/* Use ANSI-C rand() interface if random(3) is not available */ +#if !HAVE_RANDOM +#define random() rand() +#endif + +extern pid_t dollar_dollar_pid; + +static char *get_sys_tmpdir PARAMS((void)); +static char *get_tmpdir PARAMS((int)); + +static char *sys_tmpdir = (char *)NULL; +static int ntmpfiles; +static int tmpnamelen = -1; +static unsigned long filenum = 1L; + +static char * +get_sys_tmpdir () +{ + if (sys_tmpdir) + return sys_tmpdir; + +#ifdef P_tmpdir + sys_tmpdir = P_tmpdir; + if (file_iswdir (sys_tmpdir)) + return sys_tmpdir; +#endif + + sys_tmpdir = "/tmp"; + if (file_iswdir (sys_tmpdir)) + return sys_tmpdir; + + sys_tmpdir = "/var/tmp"; + if (file_iswdir (sys_tmpdir)) + return sys_tmpdir; + + sys_tmpdir = "/usr/tmp"; + if (file_iswdir (sys_tmpdir)) + return sys_tmpdir; + + sys_tmpdir = DEFAULT_TMPDIR; + + return sys_tmpdir; +} + +static char * +get_tmpdir (flags) + int flags; +{ + char *tdir; + + tdir = (flags & MT_USETMPDIR) ? get_string_value ("TMPDIR") : (char *)NULL; + if (tdir && (file_iswdir (tdir) == 0 || strlen (tdir) > PATH_MAX)) + tdir = 0; + + if (tdir == 0) + tdir = get_sys_tmpdir (); + +#if defined (HAVE_PATHCONF) && defined (_PC_NAME_MAX) + if (tmpnamelen == -1) + tmpnamelen = pathconf (tdir, _PC_NAME_MAX); +#else + tmpnamelen = 0; +#endif + + return tdir; +} + +static void +sh_seedrand () +{ +#if HAVE_RANDOM + int d; + static int seeded = 0; + if (seeded == 0) + { + struct timeval tv; + + gettimeofday (&tv, NULL); + srandom (tv.tv_sec ^ tv.tv_usec ^ (getpid () << 16) ^ (uintptr_t)&d); + seeded = 1; + } +#endif +} + +char * +sh_mktmpname (nameroot, flags) + char *nameroot; + int flags; +{ + char *filename, *tdir, *lroot; + struct stat sb; + int r, tdlen; + static int seeded = 0; + + filename = (char *)xmalloc (PATH_MAX + 1); + tdir = get_tmpdir (flags); + tdlen = strlen (tdir); + + lroot = nameroot ? nameroot : DEFAULT_NAMEROOT; + if (nameroot == 0) + flags &= ~MT_TEMPLATE; + + if ((flags & MT_TEMPLATE) && strlen (nameroot) > PATH_MAX) + flags &= ~MT_TEMPLATE; + +#ifdef USE_MKTEMP + if (flags & MT_TEMPLATE) + strcpy (filename, nameroot); + else + sprintf (filename, "%s/%s.XXXXXX", tdir, lroot); + if (mktemp (filename) == 0) + { + free (filename); + filename = NULL; + } +#else /* !USE_MKTEMP */ + sh_seedrand (); + while (1) + { + filenum = (filenum << 1) ^ + (unsigned long) time ((time_t *)0) ^ + (unsigned long) dollar_dollar_pid ^ + (unsigned long) ((flags & MT_USERANDOM) ? random () : ntmpfiles++); + sprintf (filename, "%s/%s-%lu", tdir, lroot, filenum); + if (tmpnamelen > 0 && tmpnamelen < 32) + filename[tdlen + 1 + tmpnamelen] = '\0'; +# ifdef HAVE_LSTAT + r = lstat (filename, &sb); +# else + r = stat (filename, &sb); +# endif + if (r < 0 && errno == ENOENT) + break; + } +#endif /* !USE_MKTEMP */ + + return filename; +} + +int +sh_mktmpfd (nameroot, flags, namep) + char *nameroot; + int flags; + char **namep; +{ + char *filename, *tdir, *lroot; + int fd, tdlen; + + filename = (char *)xmalloc (PATH_MAX + 1); + tdir = get_tmpdir (flags); + tdlen = strlen (tdir); + + lroot = nameroot ? nameroot : DEFAULT_NAMEROOT; + if (nameroot == 0) + flags &= ~MT_TEMPLATE; + + if ((flags & MT_TEMPLATE) && strlen (nameroot) > PATH_MAX) + flags &= ~MT_TEMPLATE; + +#ifdef USE_MKSTEMP + if (flags & MT_TEMPLATE) + strcpy (filename, nameroot); + else + sprintf (filename, "%s/%s.XXXXXX", tdir, lroot); + fd = mkstemp (filename); + if (fd < 0 || namep == 0) + { + free (filename); + filename = NULL; + } + if (namep) + *namep = filename; + return fd; +#else /* !USE_MKSTEMP */ + sh_seedrand (); + do + { + filenum = (filenum << 1) ^ + (unsigned long) time ((time_t *)0) ^ + (unsigned long) dollar_dollar_pid ^ + (unsigned long) ((flags & MT_USERANDOM) ? random () : ntmpfiles++); + sprintf (filename, "%s/%s-%lu", tdir, lroot, filenum); + if (tmpnamelen > 0 && tmpnamelen < 32) + filename[tdlen + 1 + tmpnamelen] = '\0'; + fd = open (filename, BASEOPENFLAGS | ((flags & MT_READWRITE) ? O_RDWR : O_WRONLY), 0600); + } + while (fd < 0 && errno == EEXIST); + + if (namep) + *namep = filename; + else + free (filename); + + return fd; +#endif /* !USE_MKSTEMP */ +} + +FILE * +sh_mktmpfp (nameroot, flags, namep) + char *nameroot; + int flags; + char **namep; +{ + int fd; + FILE *fp; + + fd = sh_mktmpfd (nameroot, flags, namep); + if (fd < 0) + return ((FILE *)NULL); + fp = fdopen (fd, (flags & MT_READWRITE) ? "w+" : "w"); + if (fp == 0) + close (fd); + return fp; +} + +char * +sh_mktmpdir (nameroot, flags) + char *nameroot; + int flags; +{ + char *filename, *tdir, *lroot, *dirname; + int fd, tdlen; + +#ifdef USE_MKDTEMP + filename = (char *)xmalloc (PATH_MAX + 1); + tdir = get_tmpdir (flags); + tdlen = strlen (tdir); + + lroot = nameroot ? nameroot : DEFAULT_NAMEROOT; + if (nameroot == 0) + flags &= ~MT_TEMPLATE; + + if ((flags & MT_TEMPLATE) && strlen (nameroot) > PATH_MAX) + flags &= ~MT_TEMPLATE; + + if (flags & MT_TEMPLATE) + strcpy (filename, nameroot); + else + sprintf (filename, "%s/%s.XXXXXX", tdir, lroot); + dirname = mkdtemp (filename); + if (dirname == 0) + { + free (filename); + filename = NULL; + } + return dirname; +#else /* !USE_MKDTEMP */ + filename = (char *)NULL; + do + { + filename = sh_mktmpname (nameroot, flags); + fd = mkdir (filename, 0700); + if (fd == 0) + break; + free (filename); + filename = (char *)NULL; + } + while (fd < 0 && errno == EEXIST); + + return (filename); +#endif /* !USE_MKDTEMP */ +} diff --git a/lib/sh/uconvert.c b/lib/sh/uconvert.c new file mode 100644 index 0000000..457552e --- /dev/null +++ b/lib/sh/uconvert.c @@ -0,0 +1,124 @@ +/* uconvert - convert string representations of decimal numbers into whole + number/fractional value pairs. */ + +/* Copyright (C) 2008,2009,2020 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include "config.h" + +#include "bashtypes.h" + +#include "posixtime.h" + +#if defined (HAVE_UNISTD_H) +#include <unistd.h> +#endif + +#include <stdio.h> +#include "chartypes.h" + +#include "shell.h" +#include "builtins.h" + +#define DECIMAL '.' /* XXX - should use locale */ + +#define RETURN(x) \ +do { \ + if (ip) *ip = ipart * mult; \ + if (up) *up = upart; \ + if (ep) *ep = p; \ + return (x); \ +} while (0) + +/* + * An incredibly simplistic floating point converter. + */ +static int multiplier[7] = { 1, 100000, 10000, 1000, 100, 10, 1 }; + +/* Take a decimal number int-part[.[micro-part]] and convert it to the whole + and fractional portions. The fractional portion is returned in + millionths (micro); callers are responsible for multiplying appropriately. + EP, if non-null, gets the address of the character where conversion stops. + Return 1 if value converted; 0 if invalid integer for either whole or + fractional parts. */ +int +uconvert(s, ip, up, ep) + char *s; + long *ip, *up; + char **ep; +{ + int n, mult; + long ipart, upart; + char *p; + + ipart = upart = 0; + mult = 1; + + if (s && (*s == '-' || *s == '+')) + { + mult = (*s == '-') ? -1 : 1; + p = s + 1; + } + else + p = s; + + for ( ; p && *p; p++) + { + if (*p == DECIMAL) /* decimal point */ + break; + if (DIGIT(*p) == 0) + RETURN(0); + ipart = (ipart * 10) + (*p - '0'); + } + + if (p == 0 || *p == 0) /* callers ensure p can never be 0; this is to shut up clang */ + RETURN(1); + + if (*p == DECIMAL) + p++; + + /* Look for up to six digits past a decimal point. */ + for (n = 0; n < 6 && p[n]; n++) + { + if (DIGIT(p[n]) == 0) + { + if (ep) + { + upart *= multiplier[n]; + p += n; /* To set EP */ + } + RETURN(0); + } + upart = (upart * 10) + (p[n] - '0'); + } + + /* Now convert to millionths */ + upart *= multiplier[n]; + + if (n == 6 && p[6] >= '5' && p[6] <= '9') + upart++; /* round up 1 */ + + if (ep) + { + p += n; + while (DIGIT(*p)) + p++; + } + + RETURN(1); +} diff --git a/lib/sh/ufuncs.c b/lib/sh/ufuncs.c new file mode 100644 index 0000000..4dc4853 --- /dev/null +++ b/lib/sh/ufuncs.c @@ -0,0 +1,140 @@ +/* ufuncs - sleep and alarm functions that understand fractional values */ + +/* Copyright (C) 2008,2009-2020 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include "config.h" + +#include "bashtypes.h" + +#include "posixtime.h" + +#if defined (HAVE_UNISTD_H) +#include <unistd.h> +#endif + +#include <errno.h> +#if !defined (errno) +extern int errno; +#endif /* !errno */ + +#if defined (HAVE_SELECT) +# include "posixselect.h" +# include "quit.h" +# include "trap.h" +# include "stat-time.h" +#endif + +/* A version of `alarm' using setitimer if it's available. */ + +#if defined (HAVE_SETITIMER) +unsigned int +falarm(secs, usecs) + unsigned int secs, usecs; +{ + struct itimerval it, oit; + + it.it_interval.tv_sec = 0; + it.it_interval.tv_usec = 0; + + it.it_value.tv_sec = secs; + it.it_value.tv_usec = usecs; + + if (setitimer(ITIMER_REAL, &it, &oit) < 0) + return (-1); /* XXX will be converted to unsigned */ + + /* Backwards compatibility with alarm(3) */ + if (oit.it_value.tv_usec) + oit.it_value.tv_sec++; + return (oit.it_value.tv_sec); +} +#else +int +falarm (secs, usecs) + unsigned int secs, usecs; +{ + if (secs == 0 && usecs == 0) + return (alarm (0)); + + if (secs == 0 || usecs >= 500000) + { + secs++; + usecs = 0; + } + return (alarm (secs)); +} +#endif /* !HAVE_SETITIMER */ + +/* A version of sleep using fractional seconds and select. I'd like to use + `usleep', but it's already taken */ + +#if defined (HAVE_TIMEVAL) && (defined (HAVE_SELECT) || defined (HAVE_PSELECT)) +int +fsleep(sec, usec) + unsigned int sec, usec; +{ + int e, r; + sigset_t blocked_sigs, prevmask; +#if defined (HAVE_PSELECT) + struct timespec ts; +#else + struct timeval tv; +#endif + + sigemptyset (&blocked_sigs); +# if defined (SIGCHLD) + sigaddset (&blocked_sigs, SIGCHLD); +# endif + +#if defined (HAVE_PSELECT) + ts.tv_sec = sec; + ts.tv_nsec = usec * 1000; +#else + sigemptyset (&prevmask); + tv.tv_sec = sec; + tv.tv_usec = usec; +#endif /* !HAVE_PSELECT */ + + do + { +#if defined (HAVE_PSELECT) + r = pselect(0, (fd_set *)0, (fd_set *)0, (fd_set *)0, &ts, &blocked_sigs); +#else + sigprocmask (SIG_SETMASK, &blocked_sigs, &prevmask); + r = select(0, (fd_set *)0, (fd_set *)0, (fd_set *)0, &tv); + sigprocmask (SIG_SETMASK, &prevmask, NULL); +#endif + e = errno; + if (r < 0 && errno == EINTR) + return -1; /* caller will handle */ + errno = e; + } + while (r < 0 && errno == EINTR); + + return r; +} +#else /* !HAVE_TIMEVAL || !HAVE_SELECT */ +int +fsleep(sec, usec) + long sec, usec; +{ + if (usec >= 500000) /* round */ + sec++; + return (sleep(sec)); +} +#endif /* !HAVE_TIMEVAL || !HAVE_SELECT */ diff --git a/lib/sh/unicode.c b/lib/sh/unicode.c new file mode 100644 index 0000000..d95d1e2 --- /dev/null +++ b/lib/sh/unicode.c @@ -0,0 +1,339 @@ +/* unicode.c - functions to convert unicode characters */ + +/* Copyright (C) 2010-2020 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#if defined (HANDLE_MULTIBYTE) + +#include <stdc.h> +#include <wchar.h> +#include <bashansi.h> +#ifdef HAVE_UNISTD_H +#include <unistd.h> +#endif +#include <stdio.h> +#include <limits.h> + +#if HAVE_ICONV +# include <iconv.h> +#endif + +#include <xmalloc.h> + +#ifndef USHORT_MAX +# ifdef USHRT_MAX +# define USHORT_MAX USHRT_MAX +# else +# define USHORT_MAX ((unsigned short) ~(unsigned short)0) +# endif +#endif + +#if !defined (STREQ) +# define STREQ(a, b) ((a)[0] == (b)[0] && strcmp ((a), (b)) == 0) +#endif /* !STREQ */ + +#if defined (HAVE_LOCALE_CHARSET) +extern const char *locale_charset PARAMS((void)); +#else +extern char *get_locale_var PARAMS((char *)); +#endif + +extern int locale_utf8locale; + +static int u32init = 0; +static int utf8locale = 0; +#if defined (HAVE_ICONV) +static iconv_t localconv; +#endif + +#ifndef HAVE_LOCALE_CHARSET +static char charsetbuf[40]; + +static char * +stub_charset () +{ + char *locale, *s, *t; + + locale = get_locale_var ("LC_CTYPE"); + if (locale == 0 || *locale == 0) + { + strcpy (charsetbuf, "ASCII"); + return charsetbuf; + } + s = strrchr (locale, '.'); + if (s) + { + strncpy (charsetbuf, s+1, sizeof (charsetbuf) - 1); + charsetbuf[sizeof (charsetbuf) - 1] = '\0'; + t = strchr (charsetbuf, '@'); + if (t) + *t = 0; + return charsetbuf; + } + strncpy (charsetbuf, locale, sizeof (charsetbuf) - 1); + charsetbuf[sizeof (charsetbuf) - 1] = '\0'; + return charsetbuf; +} +#endif + +void +u32reset () +{ +#if defined (HAVE_ICONV) + if (u32init && localconv != (iconv_t)-1) + { + iconv_close (localconv); + localconv = (iconv_t)-1; + } +#endif + u32init = 0; + utf8locale = 0; +} + +/* u32toascii ? */ +int +u32tochar (x, s) + unsigned long x; + char *s; +{ + int l; + + l = (x <= UCHAR_MAX) ? 1 : ((x <= USHORT_MAX) ? 2 : 4); + + if (x <= UCHAR_MAX) + s[0] = x & 0xFF; + else if (x <= USHORT_MAX) /* assume unsigned short = 16 bits */ + { + s[0] = (x >> 8) & 0xFF; + s[1] = x & 0xFF; + } + else + { + s[0] = (x >> 24) & 0xFF; + s[1] = (x >> 16) & 0xFF; + s[2] = (x >> 8) & 0xFF; + s[3] = x & 0xFF; + } + s[l] = '\0'; + return l; +} + +int +u32tocesc (wc, s) + u_bits32_t wc; + char *s; +{ + int l; + + if (wc < 0x10000) + l = sprintf (s, "\\u%04X", wc); + else + l = sprintf (s, "\\u%08X", wc); + return l; +} + +/* Convert unsigned 32-bit int to utf-8 character string */ +int +u32toutf8 (wc, s) + u_bits32_t wc; + char *s; +{ + int l; + + if (wc < 0x0080) + { + s[0] = (char)wc; + l = 1; + } + else if (wc < 0x0800) + { + s[0] = (wc >> 6) | 0xc0; + s[1] = (wc & 0x3f) | 0x80; + l = 2; + } + else if (wc < 0x10000) + { + /* Technically, we could return 0 here if 0xd800 <= wc <= 0x0dfff */ + s[0] = (wc >> 12) | 0xe0; + s[1] = ((wc >> 6) & 0x3f) | 0x80; + s[2] = (wc & 0x3f) | 0x80; + l = 3; + } + else if (wc < 0x200000) + { + s[0] = (wc >> 18) | 0xf0; + s[1] = ((wc >> 12) & 0x3f) | 0x80; + s[2] = ((wc >> 6) & 0x3f) | 0x80; + s[3] = (wc & 0x3f) | 0x80; + l = 4; + } + /* Strictly speaking, UTF-8 doesn't have characters longer than 4 bytes */ + else if (wc < 0x04000000) + { + s[0] = (wc >> 24) | 0xf8; + s[1] = ((wc >> 18) & 0x3f) | 0x80; + s[2] = ((wc >> 12) & 0x3f) | 0x80; + s[3] = ((wc >> 6) & 0x3f) | 0x80; + s[4] = (wc & 0x3f) | 0x80; + l = 5; + } + else if (wc < 0x080000000) + { + s[0] = (wc >> 30) | 0xfc; + s[1] = ((wc >> 24) & 0x3f) | 0x80; + s[2] = ((wc >> 18) & 0x3f) | 0x80; + s[3] = ((wc >> 12) & 0x3f) | 0x80; + s[4] = ((wc >> 6) & 0x3f) | 0x80; + s[5] = (wc & 0x3f) | 0x80; + l = 6; + } + else + l = 0; + + s[l] = '\0'; + return l; +} + +/* Convert a 32-bit unsigned int (unicode) to a UTF-16 string. Rarely used, + only if sizeof(wchar_t) == 2. */ +int +u32toutf16 (c, s) + u_bits32_t c; + wchar_t *s; +{ + int l; + + l = 0; + if (c < 0x0d800 || (c >= 0x0e000 && c <= 0x0ffff)) + { + s[0] = (wchar_t) (c & 0xFFFF); + l = 1; + } + else if (c >= 0x10000 && c <= 0x010ffff) + { + c -= 0x010000; + s[0] = (wchar_t)((c >> 10) + 0xd800); + s[1] = (wchar_t)((c & 0x3ff) + 0xdc00); + l = 2; + } + s[l] = 0; + return l; +} + +/* convert a single unicode-32 character into a multibyte string and put the + result in S, which must be large enough (at least max(10,MB_LEN_MAX) bytes) */ +int +u32cconv (c, s) + unsigned long c; + char *s; +{ + wchar_t wc; + wchar_t ws[3]; + int n; +#if HAVE_ICONV + const char *charset; + char obuf[25], *optr; + size_t obytesleft; + const char *iptr; + size_t sn; +#endif + +#if __STDC_ISO_10646__ + wc = c; + if (sizeof (wchar_t) == 4 && c <= 0x7fffffff) + n = wctomb (s, wc); + else if (sizeof (wchar_t) == 2 && c <= 0x10ffff && u32toutf16 (c, ws)) + n = wcstombs (s, ws, MB_LEN_MAX); + else + n = -1; + if (n != -1) + return n; +#endif + +#if HAVE_ICONV + /* this is mostly from coreutils-8.5/lib/unicodeio.c */ + if (u32init == 0) + { + utf8locale = locale_utf8locale; + localconv = (iconv_t)-1; + if (utf8locale == 0) + { +#if HAVE_LOCALE_CHARSET + charset = locale_charset (); +#elif HAVE_NL_LANGINFO + charset = nl_langinfo (CODESET); +#else + charset = stub_charset (); +#endif + localconv = iconv_open (charset, "UTF-8"); + if (localconv == (iconv_t)-1) + /* We assume ASCII when presented with an unknown encoding. */ + localconv = iconv_open ("ASCII", "UTF-8"); + } + u32init = 1; + } + + /* NL_LANGINFO and locale_charset used when setting locale_utf8locale */ + + /* If we have a UTF-8 locale, convert to UTF-8 and return converted value. */ + n = u32toutf8 (c, s); + if (utf8locale) + return n; + + /* If the conversion is not supported, even the ASCII requested above, we + bail now. Currently we return the UTF-8 conversion. We could return + u32tocesc(). */ + if (localconv == (iconv_t)-1) + return n; + + optr = obuf; + obytesleft = sizeof (obuf); + iptr = s; + sn = n; + + iconv (localconv, NULL, NULL, NULL, NULL); + + if (iconv (localconv, (ICONV_CONST char **)&iptr, &sn, &optr, &obytesleft) == (size_t)-1) + { + /* You get ISO C99 escape sequences if iconv fails */ + n = u32tocesc (c, s); + return n; + } + + *optr = '\0'; + + /* number of chars to be copied is optr - obuf if we want to do bounds + checking */ + strcpy (s, obuf); + return (optr - obuf); +#endif /* HAVE_ICONV */ + + if (locale_utf8locale) + n = u32toutf8 (c, s); + else + n = u32tocesc (c, s); /* fallback is ISO C99 escape sequences */ + return n; +} +#else +void +u32reset () +{ +} +#endif /* HANDLE_MULTIBYTE */ diff --git a/lib/sh/utf8.c b/lib/sh/utf8.c new file mode 100644 index 0000000..fed2522 --- /dev/null +++ b/lib/sh/utf8.c @@ -0,0 +1,196 @@ +/* utf8.c - UTF-8 character handling functions */ + +/* Copyright (C) 2018 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#ifdef HAVE_STDLIB_H +# include <stdlib.h> +#endif + +#include "bashansi.h" +#include "shmbutil.h" + +extern int locale_mb_cur_max; +extern int locale_utf8locale; + +#if defined (HANDLE_MULTIBYTE) + +char * +utf8_mbschr (s, c) + const char *s; + int c; +{ + return strchr (s, c); /* for now */ +} + +int +utf8_mbscmp (s1, s2) + const char *s1, *s2; +{ + /* Use the fact that the UTF-8 encoding preserves lexicographic order. */ + return strcmp (s1, s2); +} + +char * +utf8_mbsmbchar (str) + const char *str; +{ + register char *s; + + for (s = (char *)str; *s; s++) + if ((*s & 0xc0) == 0x80) + return s; + return (0); +} + +int +utf8_mbsnlen(src, srclen, maxlen) + const char *src; + size_t srclen; + int maxlen; +{ + register int sind, count; + + for (sind = count = 0; src[sind] && sind <= maxlen; sind++) + { + if ((src[sind] & 0xc0) != 0x80) + count++; + } + return (count); +} + +/* Adapted from GNU gnulib. Handles UTF-8 characters up to 4 bytes long */ +int +utf8_mblen (s, n) + const char *s; + size_t n; +{ + unsigned char c, c1, c2, c3; + + if (s == 0) + return (0); /* no shift states */ + if (n <= 0) + return (-1); + + c = (unsigned char)*s; + if (c < 0x80) + return (c != 0); + if (c >= 0xc2) + { + c1 = (unsigned char)s[1]; + if (c < 0xe0) + { + if (n == 1) + return -2; + + /* + * c c1 + * + * U+0080..U+07FF C2..DF 80..BF + */ + + if (n >= 2 && (c1 ^ 0x80) < 0x40) /* 0x80..0xbf */ + return 2; + } + else if (c < 0xf0) + { + if (n == 1) + return -2; + + /* + * c c1 c2 + * + * U+0800..U+0FFF E0 A0..BF 80..BF + * U+1000..U+CFFF E1..EC 80..BF 80..BF + * U+D000..U+D7FF ED 80..9F 80..BF + * U+E000..U+FFFF EE..EF 80..BF 80..BF + */ + + if ((c1 ^ 0x80) < 0x40 + && (c >= 0xe1 || c1 >= 0xa0) + && (c != 0xed || c1 < 0xa0)) + { + if (n == 2) + return -2; /* incomplete */ + + c2 = (unsigned char)s[2]; + if ((c2 ^ 0x80) < 0x40) + return 3; + } + } + else if (c <= 0xf4) + { + if (n == 1) + return -2; + + /* + * c c1 c2 c3 + * + * U+10000..U+3FFFF F0 90..BF 80..BF 80..BF + * U+40000..U+FFFFF F1..F3 80..BF 80..BF 80..BF + * U+100000..U+10FFFF F4 80..8F 80..BF 80..BF + */ + if (((c1 ^ 0x80) < 0x40) + && (c >= 0xf1 || c1 >= 0x90) + && (c < 0xf4 || (c == 0xf4 && c1 < 0x90))) + { + if (n == 2) + return -2; /* incomplete */ + + c2 = (unsigned char)s[2]; + if ((c2 ^ 0x80) < 0x40) + { + if (n == 3) + return -2; + + c3 = (unsigned char)s[3]; + if ((c3 ^ 0x80) < 0x40) + return 4; + } + } + } + } + /* invalid or incomplete multibyte character */ + return -1; +} + +/* We can optimize this if we know the locale is UTF-8, but needs to handle + malformed byte sequences. */ +size_t +utf8_mbstrlen(s) + const char *s; +{ + size_t clen, nc; + int mb_cur_max; + + nc = 0; + mb_cur_max = MB_CUR_MAX; + while (*s && (clen = (size_t)utf8_mblen(s, mb_cur_max)) != 0) + { + if (MB_INVALIDCH(clen)) + clen = 1; /* assume single byte */ + + s += clen; + nc++; + } + return nc; +} + +#endif diff --git a/lib/sh/vprint.c b/lib/sh/vprint.c new file mode 100644 index 0000000..567fba3 --- /dev/null +++ b/lib/sh/vprint.c @@ -0,0 +1,85 @@ +/* vprint.c -- v[fs]printf() for 4.[23] BSD systems. */ + +/* Copyright (C) 1987,1989 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#if defined (USE_VFPRINTF_EMULATION) + +#include <stdio.h> + +#if !defined (NULL) +# if defined (__STDC__) +# define NULL ((void *)0) +# else +# define NULL 0x0 +# endif /* __STDC__ */ +#endif /* !NULL */ + +/* + * Beware! Don't trust the value returned by either of these functions; it + * seems that pre-4.3-tahoe implementations of _doprnt () return the first + * argument, i.e. a char *. + */ +#include <varargs.h> + +int +vfprintf (iop, fmt, ap) + FILE *iop; + char *fmt; + va_list ap; +{ + int len; + char localbuf[BUFSIZ]; + + if (iop->_flag & _IONBF) + { + iop->_flag &= ~_IONBF; + iop->_ptr = iop->_base = localbuf; + len = _doprnt (fmt, ap, iop); + (void) fflush (iop); + iop->_flag |= _IONBF; + iop->_base = NULL; + iop->_bufsiz = 0; + iop->_cnt = 0; + } + else + len = _doprnt (fmt, ap, iop); + return (ferror (iop) ? EOF : len); +} + +/* + * Ditto for vsprintf + */ +int +vsprintf (str, fmt, ap) + char *str, *fmt; + va_list ap; +{ + FILE f; + int len; + + f._flag = _IOWRT|_IOSTRG; + f._ptr = str; + f._cnt = 32767; + len = _doprnt (fmt, ap, &f); + *f._ptr = 0; + return (len); +} +#endif /* USE_VFPRINTF_EMULATION */ diff --git a/lib/sh/wcsdup.c b/lib/sh/wcsdup.c new file mode 100644 index 0000000..62a3c86 --- /dev/null +++ b/lib/sh/wcsdup.c @@ -0,0 +1,44 @@ +/* wcsdup.c - duplicate wide character string */ + +/* Copyright (C) 2006 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#if !defined (HAVE_WCSDUP) && defined (HANDLE_MULTIBYTE) + +#include <stdc.h> +#include <wchar.h> +#include <bashansi.h> +#include <xmalloc.h> + +wchar_t * +wcsdup (ws) + const wchar_t *ws; +{ + wchar_t *ret; + size_t len; + + len = wcslen (ws); + ret = xmalloc ((len + 1) * sizeof (wchar_t)); + if (ret == 0) + return ret; + + return (wcscpy (ret, ws)); +} +#endif /* !HAVE_WCSDUP && HANDLE_MULTIBYTE */ diff --git a/lib/sh/wcsnwidth.c b/lib/sh/wcsnwidth.c new file mode 100644 index 0000000..9c7e7cc --- /dev/null +++ b/lib/sh/wcsnwidth.c @@ -0,0 +1,56 @@ +/* wcsnwidth.c - compute display width of wide character string, up to max + specified width, return length. */ + +/* Copyright (C) 2012 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#if defined (HANDLE_MULTIBYTE) + +#include <stdc.h> +#include <wchar.h> +#include <bashansi.h> + +/* Return the number of wide characters that will be displayed from wide string + PWCS. If the display width exceeds MAX, return the number of wide chars + from PWCS required to display MAX characters on the screen. */ +int +wcsnwidth(pwcs, n, max) + const wchar_t *pwcs; + size_t n, max; +{ + wchar_t wc, *ws; + int len, l; + + len = 0; + ws = (wchar_t *)pwcs; + while (n-- > 0 && (wc = *ws++) != L'\0') + { + l = wcwidth (wc); + if (l < 0) + return (-1); + else if (l == max - len) + return (ws - pwcs); + else if (l > max - len) + return (--ws - pwcs); + len += l; + } + return (ws - pwcs); +} +#endif diff --git a/lib/sh/wcswidth.c b/lib/sh/wcswidth.c new file mode 100644 index 0000000..1a30d9f --- /dev/null +++ b/lib/sh/wcswidth.c @@ -0,0 +1,46 @@ +/* wcswidth.c - compute display width of wide character string */ + +/* Copyright (C) 2010 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#if defined (HANDLE_MULTIBYTE) && !defined (HAVE_WCSWIDTH) + +#include <stdc.h> +#include <wchar.h> +#include <bashansi.h> + +int +wcswidth(pwcs, n) + const wchar_t *pwcs; + size_t n; +{ + wchar_t wc; + int len, l; + + len = 0; + while (n-- > 0 && (wc = *pwcs++) != L'\0') + { + if ((l = wcwidth(wc)) < 0) + return (-1); + len += l; + } + return (len); +} +#endif diff --git a/lib/sh/winsize.c b/lib/sh/winsize.c new file mode 100644 index 0000000..861c7c8 --- /dev/null +++ b/lib/sh/winsize.c @@ -0,0 +1,98 @@ +/* winsize.c - handle window size changes and information. */ + +/* Copyright (C) 2005-2020 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include "config.h" + +#include <stdc.h> + +#include "bashtypes.h" + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +#include <sys/ioctl.h> + +/* Try to find the definitions of `struct winsize' and TIOGCWINSZ */ + +#if 0 +#if defined (GWINSZ_IN_SYS_IOCTL) && !defined (TIOCGWINSZ) +# include <sys/ioctl.h> +#endif /* GWINSZ_IN_SYS_IOCTL && !TIOCGWINSZ */ +#endif + +#if defined (STRUCT_WINSIZE_IN_TERMIOS) && !defined (STRUCT_WINSIZE_IN_SYS_IOCTL) +# include <termios.h> +#endif /* STRUCT_WINSIZE_IN_TERMIOS && !STRUCT_WINSIZE_IN_SYS_IOCTL */ + +/* Not in either of the standard places, look around. */ +#if !defined (STRUCT_WINSIZE_IN_TERMIOS) && !defined (STRUCT_WINSIZE_IN_SYS_IOCTL) +# if defined (HAVE_SYS_STREAM_H) +# include <sys/stream.h> +# endif /* HAVE_SYS_STREAM_H */ +# if defined (HAVE_SYS_PTEM_H) /* SVR4.2, at least, has it here */ +# include <sys/ptem.h> +# define _IO_PTEM_H /* work around SVR4.2 1.1.4 bug */ +# endif /* HAVE_SYS_PTEM_H */ +# if defined (HAVE_SYS_PTE_H) /* ??? */ +# include <sys/pte.h> +# endif /* HAVE_SYS_PTE_H */ +#endif /* !STRUCT_WINSIZE_IN_TERMIOS && !STRUCT_WINSIZE_IN_SYS_IOCTL */ + +#include <stdio.h> + +/* Return the fd from which we are actually getting input. */ +#define input_tty() (shell_tty != -1) ? shell_tty : fileno (stderr) + +#if !defined (errno) +extern int errno; +#endif /* !errno */ + +extern int shell_tty; + +#if defined (READLINE) +extern void rl_set_screen_size PARAMS((int, int)); +#endif +extern void sh_set_lines_and_columns PARAMS((int, int)); + +void +get_new_window_size (from_sig, rp, cp) + int from_sig; + int *rp, *cp; +{ +#if defined (TIOCGWINSZ) + struct winsize win; + int tty; + + tty = input_tty (); + if (tty >= 0 && (ioctl (tty, TIOCGWINSZ, &win) == 0) && + win.ws_row > 0 && win.ws_col > 0) + { + sh_set_lines_and_columns (win.ws_row, win.ws_col); +#if defined (READLINE) + rl_set_screen_size (win.ws_row, win.ws_col); + if (rp) + *rp = win.ws_row; + if (cp) + *cp = win.ws_col; +#endif + } +#endif +} diff --git a/lib/sh/zcatfd.c b/lib/sh/zcatfd.c new file mode 100644 index 0000000..aa8199f --- /dev/null +++ b/lib/sh/zcatfd.c @@ -0,0 +1,74 @@ +/* zcatfd - copy contents of file descriptor to another */ + +/* Copyright (C) 2002-2020 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#include <sys/types.h> + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +#include <errno.h> + +#include <stdc.h> + +#if !defined (errno) +extern int errno; +#endif + +#ifndef ZBUFSIZ +# define ZBUFSIZ 4096 +#endif + +extern ssize_t zread PARAMS((int, char *, size_t)); +extern int zwrite PARAMS((int, char *, ssize_t)); + +/* Dump contents of file descriptor FD to OFD. FN is the filename for + error messages (not used right now). */ +int +zcatfd (fd, ofd, fn) + int fd, ofd; + char *fn; +{ + ssize_t nr; + int rval; + char lbuf[ZBUFSIZ]; + + rval = 0; + while (1) + { + nr = zread (fd, lbuf, sizeof (lbuf)); + if (nr == 0) + break; + else if (nr < 0) + { + rval = -1; + break; + } + else if (zwrite (ofd, lbuf, nr) < 0) + { + rval = -1; + break; + } + } + + return rval; +} diff --git a/lib/sh/zgetline.c b/lib/sh/zgetline.c new file mode 100644 index 0000000..8ded144 --- /dev/null +++ b/lib/sh/zgetline.c @@ -0,0 +1,125 @@ +/* zgetline - read a line of input from a specified file descriptor and return + a pointer to a newly-allocated buffer containing the data. */ + +/* Copyright (C) 2008-2020 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#include <sys/types.h> + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +#include <errno.h> +#include "xmalloc.h" + +#if !defined (errno) +extern int errno; +#endif + +extern ssize_t zread PARAMS((int, char *, size_t)); +extern ssize_t zreadc PARAMS((int, char *)); +extern ssize_t zreadintr PARAMS((int, char *, size_t)); +extern ssize_t zreadcintr PARAMS((int, char *)); + +typedef ssize_t breadfunc_t PARAMS((int, char *, size_t)); +typedef ssize_t creadfunc_t PARAMS((int, char *)); + +/* Initial memory allocation for automatic growing buffer in zreadlinec */ +#define GET_LINE_INITIAL_ALLOCATION 16 + +/* Derived from GNU libc's getline. + The behavior is almost the same as getline. See man getline. + The differences are + (1) using file descriptor instead of FILE *; + (2) the order of arguments: the file descriptor comes first; + (3) the addition of a fourth argument, DELIM; sets the delimiter to + be something other than newline if desired. If setting DELIM, + the next argument should be 1; and + (4) the addition of a fifth argument, UNBUFFERED_READ; this argument + controls whether get_line uses buffering or not to get a byte data + from FD. get_line uses zreadc if UNBUFFERED_READ is zero; and + uses zread if UNBUFFERED_READ is non-zero. + + Returns number of bytes read or -1 on error. */ + +ssize_t +zgetline (fd, lineptr, n, delim, unbuffered_read) + int fd; + char **lineptr; + size_t *n; + int delim; + int unbuffered_read; +{ + int nr, retval; + char *line, c; + + if (lineptr == 0 || n == 0 || (*lineptr == 0 && *n != 0)) + return -1; + + nr = 0; + line = *lineptr; + + while (1) + { + retval = unbuffered_read ? zread (fd, &c, 1) : zreadc(fd, &c); + + if (retval <= 0) + { + if (line && nr > 0) + line[nr] = '\0'; + break; + } + + if (nr + 2 >= *n) + { + size_t new_size; + + new_size = (*n == 0) ? GET_LINE_INITIAL_ALLOCATION : *n * 2; + line = (*n >= new_size) ? NULL : xrealloc (*lineptr, new_size); + + if (line) + { + *lineptr = line; + *n = new_size; + } + else + { + if (*n > 0) + { + (*lineptr)[*n - 1] = '\0'; + nr = *n - 2; + } + break; + } + } + + line[nr] = c; + nr++; + + if (c == delim) + { + line[nr] = '\0'; + break; + } + } + + return nr - 1; +} diff --git a/lib/sh/zmapfd.c b/lib/sh/zmapfd.c new file mode 100644 index 0000000..f9e9ed7 --- /dev/null +++ b/lib/sh/zmapfd.c @@ -0,0 +1,93 @@ +/* zmapfd - read contents of file descriptor into a newly-allocated buffer */ + +/* Copyright (C) 2006-2020 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#include <sys/types.h> + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +#include <errno.h> + +#include "bashansi.h" +#include "command.h" +#include "general.h" + +#if !defined (errno) +extern int errno; +#endif + +#ifndef ZBUFSIZ +# define ZBUFSIZ 4096 +#endif + +extern ssize_t zread PARAMS((int, char *, size_t)); + +/* Dump contents of file descriptor FD to *OSTR. FN is the filename for + error messages (not used right now). */ +int +zmapfd (fd, ostr, fn) + int fd; + char **ostr; + char *fn; +{ + ssize_t nr; + int rval; + char lbuf[ZBUFSIZ]; + char *result; + int rsize, rind; + + rval = 0; + result = (char *)xmalloc (rsize = ZBUFSIZ); + rind = 0; + + while (1) + { + nr = zread (fd, lbuf, sizeof (lbuf)); + if (nr == 0) + { + rval = rind; + break; + } + else if (nr < 0) + { + free (result); + if (ostr) + *ostr = (char *)NULL; + return -1; + } + + RESIZE_MALLOCED_BUFFER (result, rind, nr, rsize, ZBUFSIZ); + memcpy (result+rind, lbuf, nr); + rind += nr; + } + + RESIZE_MALLOCED_BUFFER (result, rind, 1, rsize, 128); + result[rind] = '\0'; + + if (ostr) + *ostr = result; + else + free (result); + + return rval; +} diff --git a/lib/sh/zread.c b/lib/sh/zread.c new file mode 100644 index 0000000..71a06a7 --- /dev/null +++ b/lib/sh/zread.c @@ -0,0 +1,224 @@ +/* zread - read data from file descriptor into buffer with retries */ + +/* Copyright (C) 1999-2020 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#include <sys/types.h> + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +#include <signal.h> +#include <errno.h> + +#if !defined (errno) +extern int errno; +#endif + +#ifndef SEEK_CUR +# define SEEK_CUR 1 +#endif + +#ifndef ZBUFSIZ +# define ZBUFSIZ 4096 +#endif + +extern int executing_builtin; + +extern void check_signals_and_traps (void); +extern void check_signals (void); +extern int signal_is_trapped (int); + +/* Read LEN bytes from FD into BUF. Retry the read on EINTR. Any other + error causes the loop to break. */ +ssize_t +zread (fd, buf, len) + int fd; + char *buf; + size_t len; +{ + ssize_t r; + + check_signals (); /* check for signals before a blocking read */ + while ((r = read (fd, buf, len)) < 0 && errno == EINTR) + { + int t; + t = errno; + /* XXX - bash-5.0 */ + /* We check executing_builtin and run traps here for backwards compatibility */ + if (executing_builtin) + check_signals_and_traps (); /* XXX - should it be check_signals()? */ + else + check_signals (); + errno = t; + } + + return r; +} + +/* Read LEN bytes from FD into BUF. Retry the read on EINTR, up to three + interrupts. Any other error causes the loop to break. */ + +#ifdef NUM_INTR +# undef NUM_INTR +#endif +#define NUM_INTR 3 + +ssize_t +zreadretry (fd, buf, len) + int fd; + char *buf; + size_t len; +{ + ssize_t r; + int nintr; + + for (nintr = 0; ; ) + { + r = read (fd, buf, len); + if (r >= 0) + return r; + if (r == -1 && errno == EINTR) + { + if (++nintr >= NUM_INTR) + return -1; + continue; + } + return r; + } +} + +/* Call read(2) and allow it to be interrupted. Just a stub for now. */ +ssize_t +zreadintr (fd, buf, len) + int fd; + char *buf; + size_t len; +{ + check_signals (); + return (read (fd, buf, len)); +} + +/* Read one character from FD and return it in CP. Return values are as + in read(2). This does some local buffering to avoid many one-character + calls to read(2), like those the `read' builtin performs. */ + +static char lbuf[ZBUFSIZ]; +static size_t lind, lused; + +ssize_t +zreadc (fd, cp) + int fd; + char *cp; +{ + ssize_t nr; + + if (lind == lused || lused == 0) + { + nr = zread (fd, lbuf, sizeof (lbuf)); + lind = 0; + if (nr <= 0) + { + lused = 0; + return nr; + } + lused = nr; + } + if (cp) + *cp = lbuf[lind++]; + return 1; +} + +/* Don't mix calls to zreadc and zreadcintr in the same function, since they + use the same local buffer. */ +ssize_t +zreadcintr (fd, cp) + int fd; + char *cp; +{ + ssize_t nr; + + if (lind == lused || lused == 0) + { + nr = zreadintr (fd, lbuf, sizeof (lbuf)); + lind = 0; + if (nr <= 0) + { + lused = 0; + return nr; + } + lused = nr; + } + if (cp) + *cp = lbuf[lind++]; + return 1; +} + +/* Like zreadc, but read a specified number of characters at a time. Used + for `read -N'. */ +ssize_t +zreadn (fd, cp, len) + int fd; + char *cp; + size_t len; +{ + ssize_t nr; + + if (lind == lused || lused == 0) + { + if (len > sizeof (lbuf)) + len = sizeof (lbuf); + nr = zread (fd, lbuf, len); + lind = 0; + if (nr <= 0) + { + lused = 0; + return nr; + } + lused = nr; + } + if (cp) + *cp = lbuf[lind++]; + return 1; +} + +void +zreset () +{ + lind = lused = 0; +} + +/* Sync the seek pointer for FD so that the kernel's idea of the last char + read is the last char returned by zreadc. */ +void +zsyncfd (fd) + int fd; +{ + off_t off, r; + + off = lused - lind; + r = 0; + if (off > 0) + r = lseek (fd, -off, SEEK_CUR); + + if (r != -1) + lused = lind = 0; +} diff --git a/lib/sh/zwrite.c b/lib/sh/zwrite.c new file mode 100644 index 0000000..3240f4f --- /dev/null +++ b/lib/sh/zwrite.c @@ -0,0 +1,64 @@ +/* zwrite - write contents of buffer to file descriptor, retrying on error */ + +/* Copyright (C) 1999-2002 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash 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 3 of the License, or + (at your option) any later version. + + Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#include <sys/types.h> + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +#include <errno.h> + +#if !defined (errno) +extern int errno; +#endif + +/* Write NB bytes from BUF to file descriptor FD, retrying the write if + it is interrupted. We retry three times if we get a zero-length + write. Any other signal causes this function to return prematurely. */ +int +zwrite (fd, buf, nb) + int fd; + char *buf; + size_t nb; +{ + int n, i, nt; + + for (n = nb, nt = 0;;) + { + i = write (fd, buf, n); + if (i > 0) + { + n -= i; + if (n <= 0) + return nb; + buf += i; + } + else if (i == 0) + { + if (++nt > 3) + return (nb - n); + } + else if (errno != EINTR) + return -1; + } +} |