mirror of
https://sourceware.org/git/glibc.git
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Tue Oct 31 00:07:29 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* sysdeps/mach/hurd/group_member.c: New file. * sysdeps/generic/group_member.c: New file. * Makerules (lib-noranlib): Don't depend on $(install-lib). (others): Do. * extra-lib.mk: Fix test of $(lib)-no-lib-dep. Mon Oct 30 12:33:10 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu> * Rules (others): Depend on $(extra-objs). * posix/unistd.h [__USE_GNU]: Declare group_member, __group_member. * posix/Makefile (routines): Add group_member. * sysdeps/posix/euidaccess.c: New file, adapted from fileutils. * sysdeps/unix/sysv/linux/i386/sigaction.c: Tighten constraint for SIG operand in asm so it must be a register. Add dead return to quiet gcc warning. * Makerules (sysd-rules): Write a defn for sysd-rules-done. [! sysd-rules-done]: Inhibit deps.
This commit is contained in:
Roland McGrath
parent
3e2ee7271d
commit
3bbceb1287
25
ChangeLog
25
ChangeLog
@ -1,3 +1,28 @@
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Tue Oct 31 00:07:29 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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* sysdeps/mach/hurd/group_member.c: New file.
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* sysdeps/generic/group_member.c: New file.
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* Makerules (lib-noranlib): Don't depend on $(install-lib).
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(others): Do.
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* extra-lib.mk: Fix test of $(lib)-no-lib-dep.
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Mon Oct 30 12:33:10 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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* Rules (others): Depend on $(extra-objs).
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* posix/unistd.h [__USE_GNU]: Declare group_member, __group_member.
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* posix/Makefile (routines): Add group_member.
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* sysdeps/posix/euidaccess.c: New file, adapted from fileutils.
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* sysdeps/unix/sysv/linux/i386/sigaction.c: Tighten constraint for
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SIG operand in asm so it must be a register.
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Add dead return to quiet gcc warning.
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* Makerules (sysd-rules): Write a defn for sysd-rules-done.
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[! sysd-rules-done]: Inhibit deps.
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Thu Oct 26 23:11:11 1995 Ulrich Drepper <drepper@ipd.info.uni-karlsruhe.de>
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* sysdeps/unix/sysv/linux/poll.c: Don't define as stub. Use
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23
Makerules
23
Makerules
@ -75,11 +75,6 @@ vpath %.h $(subst $(empty) ,:,$(strip $(common-objpfx) \
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$(addprefix $(sysdep_dir)/,$(sysdirs)) \
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$(..)))
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ifeq ($(wildcard $(+sysdir_pfx)sysd-Makefile),)
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# Don't do deps until this exists, because it might change the sources list.
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no_deps=t
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endif
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# Some sysdep makefiles use this to distinguish being included here from
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# being included individually by a subdir makefile (hurd/Makefile needs this).
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in-Makerules := yes
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@ -104,6 +99,12 @@ $(+sysdir_pfx)sysd-Makefile: $(+sysdir_pfx)config.make $(..)Makerules \
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mv -f $@T $@
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endif
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ifndef sysd-Makefile-done
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# Don't do deps until this exists, because it might change the sources list.
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no_deps=t
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endif
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# Reorder before-compile so that mach things come first, and hurd things
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# second, before all else. The mach and hurd subdirectories have many
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# generated header files which the much of rest of the library depends on,
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@ -231,9 +232,16 @@ $(+sysdir_pfx)sysd-rules: $(+sysdir_pfx)config.make $(..)Makerules \
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$(close-check-inhibit-asm) \
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echo "\$$(objpfx)%.d: $$dir/%.c \$$(before-compile); \
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\$$(+make-deps)"; \
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done) > $@T
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done; \
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echo 'sysd-rules-done = t') > $@T
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mv -f $@T $@
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ifndef sysd-rules-done
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# Don't do deps until this exists, because it provides rules to make the deps.
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no_deps=t
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endif
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ifndef compile-command.S
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compile-command.S = $(compile.S) $(OUTPUT_OPTION)
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endif
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@ -344,7 +352,8 @@ lib%.a: lib%.a(__.SYMDEF) ;
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libobjs: $(foreach o,$(object-suffixes),\
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$(common-objpfx)$(patsubst %,$(libtype$o),c)(\
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$(notdir $(objects:.o=$o))))
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lib-noranlib: libobjs $(addprefix $(objpfx),$(install-lib))
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lib-noranlib: libobjs
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others: $(addprefix $(objpfx),$(install-lib))
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ifdef objects
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4
Rules
4
Rules
@ -55,7 +55,7 @@ endif
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include ../Makerules
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.PHONY: subdir_lib
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subdir_lib: objs lib-noranlib
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subdir_lib: lib-noranlib
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# Some subdirs need to install a dummy library.
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# They can use "$(objpfx)libfnord.a: $(dep-dummy-lib); $(make-dummy-lib)".
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@ -72,7 +72,7 @@ generated := $(generated) dummy.o dummy.c
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# This makes all the auxilliary and test programs.
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.PHONY: others tests
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others: $(addprefix $(objpfx),$(others))
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others: $(addprefix $(objpfx),$(others) $(extra-objs))
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ifeq ($(cross-compiling),yes)
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tests: $(addprefix $(objpfx),$(tests))
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else
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6
configure
vendored
6
configure
vendored
@ -1005,7 +1005,7 @@ else
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ac_cv_prog_CC="$CC" # Let the user override the test.
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else
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IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
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for ac_dir in gcc; do
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for ac_dir in $PATH; do
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test -z "$ac_dir" && ac_dir=.
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if test -f $ac_dir/$ac_word; then
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ac_cv_prog_CC="${ac_tool_prefix}gcc"
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@ -1035,7 +1035,7 @@ else
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ac_cv_prog_AR="$AR" # Let the user override the test.
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else
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IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
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for ac_dir in ar; do
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for ac_dir in $PATH; do
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test -z "$ac_dir" && ac_dir=.
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if test -f $ac_dir/$ac_word; then
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ac_cv_prog_AR="${ac_tool_prefix}ar"
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@ -1095,7 +1095,7 @@ else
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ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
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else
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IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
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for ac_dir in :; do
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for ac_dir in $PATH; do
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test -z "$ac_dir" && ac_dir=.
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if test -f $ac_dir/$ac_word; then
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ac_cv_prog_RANLIB="ranlib"
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@ -25,13 +25,11 @@ ifneq (,$(filter .so,$(object-suffixes-$(lib))))
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alltypes-$(lib) += $(objpfx)$(lib).so
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endif
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ifneq (0,$(MAKELEVEL))
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ifndef $(lib)-no-lib-dep
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ifeq (,$($(lib)-no-lib-dep))
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lib-noranlib: $(alltypes-$(lib))
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else
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others: $(alltypes-$(lib))
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endif
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endif
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# Use o-iterator.mk to generate a rule for each flavor of library.
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define o-iterator-doit
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@ -36,7 +36,7 @@ routines := \
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fork vfork _exit \
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execve fexecve execv execle execl execvp execlp \
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getpid getppid \
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getuid geteuid getgid getegid getgroups setuid setgid \
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getuid geteuid getgid getegid getgroups setuid setgid group_member \
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getpgid setpgid getpgrp setsid \
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getlogin setlogin \
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pathconf sysconf fpathconf \
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@ -1159,7 +1159,7 @@ typedef struct
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/* Push the info, starting with the registers. */ \
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DEBUG_PRINT1 ("\n"); \
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\
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if (!(RE_NO_POSIX_BACKTRACKING & bufp->syntax)) \
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if (1) \
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for (this_reg = lowest_active_reg; this_reg <= highest_active_reg; \
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this_reg++) \
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{ \
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@ -1220,7 +1220,7 @@ typedef struct
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/* We actually push this many items. */
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#define NUM_FAILURE_ITEMS \
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(((RE_NO_POSIX_BACKTRACKING & bufp->syntax \
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(((0 \
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? 0 : highest_active_reg - lowest_active_reg + 1) \
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* NUM_REG_ITEMS) \
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+ NUM_NONREG_ITEMS)
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@ -1281,7 +1281,7 @@ typedef struct
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low_reg = (unsigned) POP_FAILURE_INT (); \
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DEBUG_PRINT2 (" Popping low active reg: %d\n", low_reg); \
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\
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if (!(RE_NO_POSIX_BACKTRACKING & bufp->syntax)) \
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if (1) \
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for (this_reg = high_reg; this_reg >= low_reg; this_reg--) \
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{ \
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DEBUG_PRINT2 (" Popping reg: %d\n", this_reg); \
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@ -1299,7 +1299,7 @@ typedef struct
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{ \
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for (this_reg = highest_active_reg; this_reg > high_reg; this_reg--) \
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{ \
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reg_info[this_reg].word = 0; \
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reg_info[this_reg].word.integer = 0; \
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regend[this_reg] = 0; \
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regstart[this_reg] = 0; \
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} \
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@ -366,6 +366,12 @@ extern __gid_t getegid __P ((void));
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extern int __getgroups __P ((int __size, __gid_t __list[]));
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extern int getgroups __P ((int __size, __gid_t __list[]));
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#ifdef __USE_GNU
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/* Return nonzero iff the calling process is in group GID. */
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extern int __group_member __P ((__gid_t __gid));
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extern int group_member __P ((__gid_t __gid));
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#endif
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/* Set the user ID of the calling process to UID.
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If the calling process is the super-user, set the real
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and effective user IDs, and the saved set-user-ID to UID;
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50
sysdeps/generic/group_member.c
Normal file
50
sysdeps/generic/group_member.c
Normal file
@ -0,0 +1,50 @@
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/* `group_member' -- test if process is in a given group.
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Copyright (C) 1995 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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||||
modify it under the terms of the GNU Library General Public License as
|
||||
published by the Free Software Foundation; either version 2 of the
|
||||
License, or (at your option) any later version.
|
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|
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The GNU C Library 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
|
||||
Library General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Library General Public
|
||||
License along with the GNU C Library; see the file COPYING.LIB. If
|
||||
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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||||
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#include <sys/types.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <limits.h>
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#ifndef NGROUPS_MAX
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#define NGROUPS_MAX 16 /* First guess. */
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#endif
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int
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__group_member (gid)
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gid_t gid;
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{
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int n, size;
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gid_t *groups;
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size = NGROUPS_MAX;
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do
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{
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groups = __alloca (size * sizeof *groups);
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n = __getgroups (size, groups);
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size *= 2;
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} while (n == size / 2);
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while (n > 0)
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||||
if (groups[n--] == gid)
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return 1;
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return 0;
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}
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weak_alias (__group_member, group_member)
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56
sysdeps/mach/hurd/group_member.c
Normal file
56
sysdeps/mach/hurd/group_member.c
Normal file
@ -0,0 +1,56 @@
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/* `group_member' -- test if process is in a given group. Hurd version.
|
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Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
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||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Library General Public License as
|
||||
published by the Free Software Foundation; either version 2 of the
|
||||
License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library 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
|
||||
Library General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Library General Public
|
||||
License along with the GNU C Library; see the file COPYING.LIB. If
|
||||
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
||||
Cambridge, MA 02139, USA. */
|
||||
|
||||
#include <errno.h>
|
||||
#include <unistd.h>
|
||||
#include <hurd.h>
|
||||
#include <hurd/id.h>
|
||||
|
||||
int
|
||||
__group_member (gid)
|
||||
gid_t gid;
|
||||
{
|
||||
int member = 0;
|
||||
error_t err;
|
||||
void *crit;
|
||||
|
||||
crit = _hurd_critical_section_lock ();
|
||||
__mutex_lock (&_hurd_id.lock);
|
||||
|
||||
err = _hurd_check_ids ();
|
||||
if (! err)
|
||||
{
|
||||
size_t i;
|
||||
for (i = 0; i < _hurd_id.gen.ngids; ++i)
|
||||
if (_hurd_id.gen.gids[i] == gid)
|
||||
{
|
||||
member = 1;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
__mutex_unlock (&_hurd_id.lock);
|
||||
_hurd_critical_section_unlock (crit);
|
||||
|
||||
if (err)
|
||||
__hurd_fail (err);
|
||||
return member;
|
||||
}
|
||||
|
||||
weak_alias (__group_member, group_member)
|
||||
201
sysdeps/posix/euidaccess.c
Normal file
201
sysdeps/posix/euidaccess.c
Normal file
@ -0,0 +1,201 @@
|
||||
/* euidaccess -- check if effective user id can access file
|
||||
Copyright (C) 1990, 1991, 1995 Free Software Foundation, Inc.
|
||||
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Library General Public License as
|
||||
published by the Free Software Foundation; either version 2 of the
|
||||
License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library 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
|
||||
Library General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Library General Public
|
||||
License along with the GNU C Library; see the file COPYING.LIB. If
|
||||
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
||||
Cambridge, MA 02139, USA. */
|
||||
|
||||
/* Written by David MacKenzie and Torbjorn Granlund.
|
||||
Adapted for GNU C library by Roland McGrath. */
|
||||
|
||||
#ifdef HAVE_CONFIG_H
|
||||
#include <config.h>
|
||||
#endif
|
||||
|
||||
#include <sys/types.h>
|
||||
#include <sys/stat.h>
|
||||
|
||||
#ifdef S_IEXEC
|
||||
#ifndef S_IXUSR
|
||||
#define S_IXUSR S_IEXEC
|
||||
#endif
|
||||
#ifndef S_IXGRP
|
||||
#define S_IXGRP (S_IEXEC >> 3)
|
||||
#endif
|
||||
#ifndef S_IXOTH
|
||||
#define S_IXOTH (S_IEXEC >> 6)
|
||||
#endif
|
||||
#endif /* S_IEXEC */
|
||||
|
||||
#if defined (HAVE_UNISTD_H) || defined (_LIBC)
|
||||
#include <unistd.h>
|
||||
#endif
|
||||
|
||||
#ifdef _POSIX_VERSION
|
||||
#include <limits.h>
|
||||
#if !defined(NGROUPS_MAX) || NGROUPS_MAX < 1
|
||||
#undef NGROUPS_MAX
|
||||
#define NGROUPS_MAX sysconf (_SC_NGROUPS_MAX)
|
||||
#endif /* NGROUPS_MAX */
|
||||
|
||||
#else /* not _POSIX_VERSION */
|
||||
uid_t getuid ();
|
||||
gid_t getgid ();
|
||||
uid_t geteuid ();
|
||||
gid_t getegid ();
|
||||
#include <sys/param.h>
|
||||
#if !defined(NGROUPS_MAX) && defined(NGROUPS)
|
||||
#define NGROUPS_MAX NGROUPS
|
||||
#endif /* not NGROUPS_MAX and NGROUPS */
|
||||
#endif /* not POSIX_VERSION */
|
||||
|
||||
#include <errno.h>
|
||||
#ifndef errno
|
||||
extern int errno;
|
||||
#endif
|
||||
|
||||
#if defined(EACCES) && !defined(EACCESS)
|
||||
#define EACCESS EACCES
|
||||
#endif
|
||||
|
||||
#ifndef F_OK
|
||||
#define F_OK 0
|
||||
#define X_OK 1
|
||||
#define W_OK 2
|
||||
#define R_OK 4
|
||||
#endif
|
||||
|
||||
|
||||
#ifdef _LIBC
|
||||
|
||||
#define group_member __group_member
|
||||
|
||||
#else
|
||||
|
||||
/* The user's real user id. */
|
||||
static uid_t uid;
|
||||
|
||||
/* The user's real group id. */
|
||||
static gid_t gid;
|
||||
|
||||
/* The user's effective user id. */
|
||||
static uid_t euid;
|
||||
|
||||
/* The user's effective group id. */
|
||||
static gid_t egid;
|
||||
|
||||
/* Nonzero if UID, GID, EUID, and EGID have valid values. */
|
||||
static int have_ids = 0;
|
||||
|
||||
#ifdef HAVE_GETGROUPS
|
||||
int group_member ();
|
||||
#else
|
||||
#define group_member(gid) 0
|
||||
#endif
|
||||
|
||||
#endif
|
||||
|
||||
|
||||
/* Return 0 if the user has permission of type MODE on file PATH;
|
||||
otherwise, return -1 and set `errno' to EACCESS.
|
||||
Like access, except that it uses the effective user and group
|
||||
id's instead of the real ones, and it does not check for read-only
|
||||
filesystem, text busy, etc. */
|
||||
|
||||
int
|
||||
euidaccess (path, mode)
|
||||
const char *path;
|
||||
int mode;
|
||||
{
|
||||
struct stat stats;
|
||||
int granted;
|
||||
|
||||
#ifdef _LIBC
|
||||
uid_t uid = getuid (), euid = geteuid ();
|
||||
gid_t gid = getgid (), egid = getegid ();
|
||||
#else
|
||||
if (have_ids == 0)
|
||||
{
|
||||
have_ids = 1;
|
||||
uid = getuid ();
|
||||
gid = getgid ();
|
||||
euid = geteuid ();
|
||||
egid = getegid ();
|
||||
}
|
||||
#endif
|
||||
|
||||
if (uid == euid && gid == egid)
|
||||
/* If we are not set-uid or set-gid, access does the same. */
|
||||
return access (path, mode);
|
||||
|
||||
if (stat (path, &stats))
|
||||
return -1;
|
||||
|
||||
mode &= (X_OK | W_OK | R_OK); /* Clear any bogus bits. */
|
||||
#if R_OK != S_IROTH || W_OK != S_IWOTH || X_OK != S_IXOTH
|
||||
?error Oops, portability assumptions incorrect.
|
||||
#endif
|
||||
|
||||
if (mode == F_OK)
|
||||
return 0; /* The file exists. */
|
||||
|
||||
/* The super-user can read and write any file, and execute any file
|
||||
that anyone can execute. */
|
||||
if (euid == 0 && ((mode & X_OK) == 0
|
||||
|| (stats.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH))))
|
||||
return 0;
|
||||
|
||||
if (euid == stats.st_uid)
|
||||
granted = (unsigned) (stats.st_mode & (mode << 6)) >> 6;
|
||||
else if (egid == stats.st_gid || group_member (stats.st_gid))
|
||||
granted = (unsigned) (stats.st_mode & (mode << 3)) >> 3;
|
||||
else
|
||||
granted = (stats.st_mode & mode);
|
||||
if (granted == mode)
|
||||
return 0;
|
||||
errno = EACCESS;
|
||||
return -1;
|
||||
}
|
||||
|
||||
#ifdef TEST
|
||||
#include <stdio.h>
|
||||
#include <errno.h>
|
||||
#include "error.h"
|
||||
|
||||
char *program_name;
|
||||
|
||||
int
|
||||
main (argc, argv)
|
||||
int argc;
|
||||
char **argv;
|
||||
{
|
||||
char *file;
|
||||
int mode;
|
||||
int err;
|
||||
|
||||
program_name = argv[0];
|
||||
if (argc < 3)
|
||||
abort ();
|
||||
file = argv[1];
|
||||
mode = atoi (argv[2]);
|
||||
|
||||
err = euidaccess (file, mode);
|
||||
printf ("%d\n", err);
|
||||
if (err != 0)
|
||||
error (0, errno, "%s", file);
|
||||
exit (0);
|
||||
}
|
||||
#endif
|
||||
@ -44,7 +44,7 @@ __sigaction (int sig, const struct sigaction *act, struct sigaction *oact)
|
||||
"int $0x80\n"
|
||||
"popl %%ebx"
|
||||
: "=a" (result)
|
||||
: "0" (SYS_ify (sigaction)), "g" (sig), "c" (act), "d" (oact));
|
||||
: "0" (SYS_ify (sigaction)), "r" (sig), "c" (act), "d" (oact));
|
||||
|
||||
if (result < 0)
|
||||
{
|
||||
@ -75,6 +75,7 @@ __sigaction (int sig, const struct sigaction *act, struct sigaction *oact)
|
||||
" popf\n"
|
||||
" ret"
|
||||
: : );
|
||||
|
||||
restore_nomask:
|
||||
asm (" addl $4, %%esp\n"
|
||||
" popl %%eax\n"
|
||||
@ -83,7 +84,9 @@ __sigaction (int sig, const struct sigaction *act, struct sigaction *oact)
|
||||
" popf\n"
|
||||
" ret"
|
||||
: : );
|
||||
|
||||
/* NOTREACHED */
|
||||
return -1;
|
||||
}
|
||||
|
||||
weak_alias (__sigaction, sigaction)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user