A few sims use this to emulate chown syscalls.
+2021-06-08 Mike Frysinger <vapier@gentoo.org>
+
+ * update-gnulib.sh (IMPORTED_GNULIB_MODULES): Add chown.
+ * aclocal.m4, config.in, configure, Makefile.in, import/Makefile.am,
+ import/Makefile.in, import/m4/gnulib-cache.m4,
+ import/m4/gnulib-comp.m4: Regenerate.
+ * import/chown.c, import/fchown-stub.c, import/m4/chown.m4: New files.
+
2021-05-24 Mike Frysinger <vapier@gentoo.org>
* update-gnulib.sh (IMPORTED_GNULIB_MODULES): Add ffs.
$(top_srcdir)/import/m4/builtin-expect.m4 \
$(top_srcdir)/import/m4/canonicalize.m4 \
$(top_srcdir)/import/m4/chdir-long.m4 \
+ $(top_srcdir)/import/m4/chown.m4 \
$(top_srcdir)/import/m4/clock_time.m4 \
$(top_srcdir)/import/m4/close.m4 \
$(top_srcdir)/import/m4/closedir.m4 \
m4_include([import/m4/builtin-expect.m4])
m4_include([import/m4/canonicalize.m4])
m4_include([import/m4/chdir-long.m4])
+m4_include([import/m4/chown.m4])
m4_include([import/m4/clock_time.m4])
m4_include([import/m4/close.m4])
m4_include([import/m4/closedir.m4])
/* Define to the number of bits in type 'wint_t'. */
#undef BITSIZEOF_WINT_T
+/* Define to 1 if chown fails to change ctime when at least one argument was
+ not -1. */
+#undef CHOWN_CHANGE_TIME_BUG
+
+/* Define if chown is not POSIX compliant regarding IDs of -1. */
+#undef CHOWN_FAILS_TO_HONOR_ID_OF_NEGATIVE_ONE
+
+/* Define if chown modifies symlinks. */
+#undef CHOWN_MODIFIES_SYMLINK
+
+/* Define to 1 if chown mishandles trailing slash. */
+#undef CHOWN_TRAILING_SLASH_BUG
+
/* Define to 1 if using 'alloca.c'. */
#undef C_ALLOCA
/* Define to 1 when the gnulib module chdir should be tested. */
#undef GNULIB_TEST_CHDIR
+/* Define to 1 when the gnulib module chown should be tested. */
+#undef GNULIB_TEST_CHOWN
+
/* Define to 1 when the gnulib module cloexec should be tested. */
#undef GNULIB_TEST_CLOEXEC
/* Define to 1 if you have the `catgets' function. */
#undef HAVE_CATGETS
+/* Define to 1 if you have the `chown' function. */
+#undef HAVE_CHOWN
+
/* Define to 1 if you have the `clock_gettime' function. */
#undef HAVE_CLOCK_GETTIME
/* Define to 1 if you have the `fchdir' function. */
#undef HAVE_FCHDIR
+/* Define to 1 if you have the `fchown' function. */
+#undef HAVE_FCHOWN
+
/* Define to 1 if you have the `fcntl' function. */
#undef HAVE_FCNTL
as_fn_append ac_func_list " realpath"
as_fn_append ac_header_list " sys/param.h"
as_fn_append ac_header_list " unistd.h"
+as_fn_append ac_func_list " chown"
+as_fn_append ac_func_list " fchown"
as_fn_append ac_func_list " _set_invalid_parameter_handler"
as_fn_append ac_func_list " fchdir"
as_fn_append ac_header_list " dirent.h"
# Code from module canonicalize-lgpl:
# Code from module chdir:
# Code from module chdir-long:
+ # Code from module chown:
# Code from module clock-time:
# Code from module cloexec:
# Code from module close:
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for uid_t in sys/types.h" >&5
+$as_echo_n "checking for uid_t in sys/types.h... " >&6; }
+if ${ac_cv_type_uid_t+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <sys/types.h>
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+ $EGREP "uid_t" >/dev/null 2>&1; then :
+ ac_cv_type_uid_t=yes
+else
+ ac_cv_type_uid_t=no
+fi
+rm -f conftest*
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_type_uid_t" >&5
+$as_echo "$ac_cv_type_uid_t" >&6; }
+if test $ac_cv_type_uid_t = no; then
+$as_echo "#define uid_t int" >>confdefs.h
- if test $ac_cv_func__set_invalid_parameter_handler = yes; then
- HAVE_MSVC_INVALID_PARAMETER_HANDLER=1
-
-$as_echo "#define HAVE_MSVC_INVALID_PARAMETER_HANDLER 1" >>confdefs.h
-
- else
- HAVE_MSVC_INVALID_PARAMETER_HANDLER=0
- fi
-
-
-
-
-
- GNULIB_OPENDIR=0;
- GNULIB_READDIR=0;
- GNULIB_REWINDDIR=0;
- GNULIB_CLOSEDIR=0;
- GNULIB_DIRFD=0;
- GNULIB_FDOPENDIR=0;
- GNULIB_SCANDIR=0;
- GNULIB_ALPHASORT=0;
- HAVE_OPENDIR=1;
- HAVE_READDIR=1;
- HAVE_REWINDDIR=1;
- HAVE_CLOSEDIR=1;
- HAVE_DECL_DIRFD=1;
- HAVE_DECL_FDOPENDIR=1;
- HAVE_FDOPENDIR=1;
- HAVE_SCANDIR=1;
- HAVE_ALPHASORT=1;
- REPLACE_OPENDIR=0;
- REPLACE_CLOSEDIR=0;
- REPLACE_DIRFD=0;
- REPLACE_FDOPENDIR=0;
-
-
- GNULIB_ISBLANK=0;
- HAVE_ISBLANK=1;
+$as_echo "#define gid_t int" >>confdefs.h
+fi
gl_mda_defines='
#if defined _WIN32 && !defined __CYGWIN__
'
+ for ac_header in unistd.h
+do :
+ ac_fn_c_check_header_mongrel "$LINENO" "unistd.h" "ac_cv_header_unistd_h" "$ac_includes_default"
+if test "x$ac_cv_header_unistd_h" = xyes; then :
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_UNISTD_H 1
+_ACEOF
+
+fi
+
+done
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for working chown" >&5
+$as_echo_n "checking for working chown... " >&6; }
+if ${ac_cv_func_chown_works+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test "$cross_compiling" = yes; then :
+ case "$host_os" in # ((
+ # Guess yes on Linux systems.
+ linux-* | linux) ac_cv_func_chown_works="guessing yes" ;;
+ # Guess yes on glibc systems.
+ *-gnu* | gnu*) ac_cv_func_chown_works="guessing yes" ;;
+ # Guess no on native Windows.
+ mingw*) ac_cv_func_chown_works="guessing no" ;;
+ # If we don't know, obey --enable-cross-guesses.
+ *) ac_cv_func_chown_works="$gl_cross_guess_normal" ;;
+ esac
+
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+$ac_includes_default
+ #include <fcntl.h>
+
+
+$gl_mda_defines
+
+int
+main ()
+{
+
+ char *f = "conftest.chown";
+ struct stat before, after;
+
+ if (creat (f, 0600) < 0)
+ return 1;
+ if (stat (f, &before) < 0)
+ return 1;
+ if (chown (f, (uid_t) -1, (gid_t) -1) == -1)
+ return 1;
+ if (stat (f, &after) < 0)
+ return 1;
+ return ! (before.st_uid == after.st_uid && before.st_gid == after.st_gid);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+ ac_cv_func_chown_works=yes
+else
+ ac_cv_func_chown_works=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+ conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+ rm -f conftest.chown
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_chown_works" >&5
+$as_echo "$ac_cv_func_chown_works" >&6; }
+ case "$ac_cv_func_chown_works" in
+ *yes)
+
+$as_echo "#define HAVE_CHOWN 1" >>confdefs.h
+
+ ;;
+ esac
+
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether chown dereferences symlinks" >&5
+$as_echo_n "checking whether chown dereferences symlinks... " >&6; }
+if ${gl_cv_func_chown_follows_symlink+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+
+ if test "$cross_compiling" = yes; then :
+ gl_cv_func_chown_follows_symlink="guessing yes"
+
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+
+
+$gl_mda_defines
+
+ int
+ main ()
+ {
+ int result = 0;
+ char const *dangling_symlink = "conftest.dangle";
+
+ unlink (dangling_symlink);
+ if (symlink ("conftest.no-such", dangling_symlink))
+ abort ();
+
+ /* Exit successfully on a conforming system,
+ i.e., where chown must fail with ENOENT. */
+ if (chown (dangling_symlink, getuid (), getgid ()) == 0)
+ result |= 1;
+ if (errno != ENOENT)
+ result |= 2;
+ return result;
+ }
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+ gl_cv_func_chown_follows_symlink=yes
+else
+ gl_cv_func_chown_follows_symlink=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+ conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_chown_follows_symlink" >&5
+$as_echo "$gl_cv_func_chown_follows_symlink" >&6; }
+
+ case "$gl_cv_func_chown_follows_symlink" in
+ *yes) ;;
+ *)
+
+$as_echo "#define CHOWN_MODIFIES_SYMLINK 1" >>confdefs.h
+
+ ;;
+ esac
+
+
+
+
+
+
+
+
+
+
+
+
+ if test $ac_cv_func_chown = no; then
+ HAVE_CHOWN=0
+ else
+ case "$gl_cv_func_chown_follows_symlink" in
+ *yes) ;;
+ *) REPLACE_CHOWN=1 ;;
+ esac
+
+ case "$ac_cv_func_chown_works" in
+ *no)
+
+$as_echo "#define CHOWN_FAILS_TO_HONOR_ID_OF_NEGATIVE_ONE 1" >>confdefs.h
+
+ REPLACE_CHOWN=1
+ ;;
+ esac
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether chown honors trailing slash" >&5
+$as_echo_n "checking whether chown honors trailing slash... " >&6; }
+if ${gl_cv_func_chown_slash_works+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ touch conftest.file && rm -f conftest.link
+ if test "$cross_compiling" = yes; then :
+ case "$host_os" in
+ # Guess yes on glibc systems.
+ *-gnu*) gl_cv_func_chown_slash_works="guessing yes" ;;
+ # Guess yes on musl systems.
+ *-musl*) gl_cv_func_chown_slash_works="guessing yes" ;;
+ # If we don't know, obey --enable-cross-guesses.
+ *) gl_cv_func_chown_slash_works="$gl_cross_guess_normal" ;;
+ esac
+
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+
+
+$gl_mda_defines
+
+int
+main ()
+{
+if (symlink ("conftest.file", "conftest.link")) return 1;
+ if (chown ("conftest.link/", getuid (), getgid ()) == 0) return 2;
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+ gl_cv_func_chown_slash_works=yes
+else
+ gl_cv_func_chown_slash_works=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+ conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+ rm -f conftest.link conftest.file
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_chown_slash_works" >&5
+$as_echo "$gl_cv_func_chown_slash_works" >&6; }
+ case "$gl_cv_func_chown_slash_works" in
+ *yes) ;;
+ *)
+
+$as_echo "#define CHOWN_TRAILING_SLASH_BUG 1" >>confdefs.h
+
+ REPLACE_CHOWN=1
+ ;;
+ esac
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether chown always updates ctime" >&5
+$as_echo_n "checking whether chown always updates ctime... " >&6; }
+if ${gl_cv_func_chown_ctime_works+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test "$cross_compiling" = yes; then :
+ case "$host_os" in
+ # Guess yes on glibc systems.
+ *-gnu*) gl_cv_func_chown_ctime_works="guessing yes" ;;
+ # Guess yes on musl systems.
+ *-musl*) gl_cv_func_chown_ctime_works="guessing yes" ;;
+ # If we don't know, obey --enable-cross-guesses.
+ *) gl_cv_func_chown_ctime_works="$gl_cross_guess_normal" ;;
+ esac
+
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+
+
+$gl_mda_defines
+
+int
+main ()
+{
+struct stat st1, st2;
+ if (close (creat ("conftest.file", 0600))) return 1;
+ if (stat ("conftest.file", &st1)) return 2;
+ sleep (1);
+ if (chown ("conftest.file", st1.st_uid, st1.st_gid)) return 3;
+ if (stat ("conftest.file", &st2)) return 4;
+ if (st2.st_ctime <= st1.st_ctime) return 5;
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+ gl_cv_func_chown_ctime_works=yes
+else
+ gl_cv_func_chown_ctime_works=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+ conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+ rm -f conftest.file
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_chown_ctime_works" >&5
+$as_echo "$gl_cv_func_chown_ctime_works" >&6; }
+ case "$gl_cv_func_chown_ctime_works" in
+ *yes) ;;
+ *)
+
+$as_echo "#define CHOWN_CHANGE_TIME_BUG 1" >>confdefs.h
+
+ REPLACE_CHOWN=1
+ ;;
+ esac
+ fi
+
+
+
+
+
+ if test $ac_cv_func__set_invalid_parameter_handler = yes; then
+ HAVE_MSVC_INVALID_PARAMETER_HANDLER=1
+
+$as_echo "#define HAVE_MSVC_INVALID_PARAMETER_HANDLER 1" >>confdefs.h
+
+ else
+ HAVE_MSVC_INVALID_PARAMETER_HANDLER=0
+ fi
+
+
+
+
+
+ GNULIB_OPENDIR=0;
+ GNULIB_READDIR=0;
+ GNULIB_REWINDDIR=0;
+ GNULIB_CLOSEDIR=0;
+ GNULIB_DIRFD=0;
+ GNULIB_FDOPENDIR=0;
+ GNULIB_SCANDIR=0;
+ GNULIB_ALPHASORT=0;
+ HAVE_OPENDIR=1;
+ HAVE_READDIR=1;
+ HAVE_REWINDDIR=1;
+ HAVE_CLOSEDIR=1;
+ HAVE_DECL_DIRFD=1;
+ HAVE_DECL_FDOPENDIR=1;
+ HAVE_FDOPENDIR=1;
+ HAVE_SCANDIR=1;
+ HAVE_ALPHASORT=1;
+ REPLACE_OPENDIR=0;
+ REPLACE_CLOSEDIR=0;
+ REPLACE_DIRFD=0;
+ REPLACE_FDOPENDIR=0;
+
+
+ GNULIB_ISBLANK=0;
+ HAVE_ISBLANK=1;
+
+
+
+
HAVE_SIGSET_T=0
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for uid_t in sys/types.h" >&5
-$as_echo_n "checking for uid_t in sys/types.h... " >&6; }
-if ${ac_cv_type_uid_t+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-#include <sys/types.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
- $EGREP "uid_t" >/dev/null 2>&1; then :
- ac_cv_type_uid_t=yes
-else
- ac_cv_type_uid_t=no
-fi
-rm -f conftest*
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_type_uid_t" >&5
-$as_echo "$ac_cv_type_uid_t" >&6; }
-if test $ac_cv_type_uid_t = no; then
-
-$as_echo "#define uid_t int" >>confdefs.h
-
-
-$as_echo "#define gid_t int" >>confdefs.h
-
-fi
-
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for stdbool.h that conforms to C99" >&5
$as_echo_n "checking for stdbool.h that conforms to C99... " >&6; }
if ${ac_cv_header_stdbool_h+:} false; then :
:
fi
+ if test $HAVE_CHOWN = 0 || test $REPLACE_CHOWN = 1; then
+
+
+
+
+
+
+
+
+ gl_LIBOBJS="$gl_LIBOBJS chown.$ac_objext"
+
+ fi
+ if test $REPLACE_CHOWN = 1 && test $ac_cv_func_fchown = no; then
+
+
+
+
+
+
+
+
+ gl_LIBOBJS="$gl_LIBOBJS fchown-stub.$ac_objext"
+
+ fi
+
+
+
+
+
+ GNULIB_CHOWN=1
+
+
+
+
+
+$as_echo "#define GNULIB_TEST_CHOWN 1" >>confdefs.h
+
+
+
+
# Solaris 2.5.1 needs -lposix4 to get the clock_gettime function.
# --no-vc-files \
# alloca \
# canonicalize-lgpl \
+# chown \
# count-one-bits \
# dirent \
# dirfd \
## end gnulib module chdir-long
+## begin gnulib module chown
+
+
+EXTRA_DIST += chown.c fchown-stub.c
+
+EXTRA_libgnu_a_SOURCES += chown.c fchown-stub.c
+
+## end gnulib module chown
+
## begin gnulib module cloexec
libgnu_a_SOURCES += cloexec.c
# --no-vc-files \
# alloca \
# canonicalize-lgpl \
+# chown \
# count-one-bits \
# dirent \
# dirfd \
$(top_srcdir)/import/m4/builtin-expect.m4 \
$(top_srcdir)/import/m4/canonicalize.m4 \
$(top_srcdir)/import/m4/chdir-long.m4 \
+ $(top_srcdir)/import/m4/chown.m4 \
$(top_srcdir)/import/m4/clock_time.m4 \
$(top_srcdir)/import/m4/close.m4 \
$(top_srcdir)/import/m4/closedir.m4 \
# No GNU Make output.
EXTRA_DIST = m4/gnulib-cache.m4 alloca.c alloca.in.h arpa_inet.in.h \
assure.h attribute.h basename-lgpl.h btowc.c \
- canonicalize-lgpl.c chdir-long.c chdir-long.h cloexec.h \
- close.c closedir.c dirent-private.h count-one-bits.h \
- ctype.in.h dirent.in.h dirfd.c dirname.h dup.c dup2.c \
- eloop-threshold.h errno.in.h error.c error.h exitfail.h \
- fchdir.c fcntl.c fcntl.in.h fd-hook.h fdopendir.c ffs.c \
- filename.h filenamecat.h flexmember.h float.c float.in.h \
+ canonicalize-lgpl.c chdir-long.c chdir-long.h chown.c \
+ fchown-stub.c cloexec.h close.c closedir.c dirent-private.h \
+ count-one-bits.h ctype.in.h dirent.in.h dirfd.c dirname.h \
+ dup.c dup2.c eloop-threshold.h errno.in.h error.c error.h \
+ exitfail.h fchdir.c fcntl.c fcntl.in.h fd-hook.h fdopendir.c \
+ ffs.c filename.h filenamecat.h flexmember.h float.c float.in.h \
itold.c fnmatch.c fnmatch_loop.c fnmatch.c fnmatch.in.h \
fpucw.h free.c frexp.c frexp.c frexpl.c fstat.c stat-w32.c \
stat-w32.h at-func.c fstatat.c \
libgnu_a_LIBADD = $(gl_LIBOBJS) @ALLOCA@
libgnu_a_DEPENDENCIES = $(gl_LIBOBJS) @ALLOCA@
EXTRA_libgnu_a_SOURCES = alloca.c btowc.c canonicalize-lgpl.c \
- chdir-long.c close.c closedir.c dirfd.c dup.c dup2.c error.c \
- fchdir.c fcntl.c fdopendir.c ffs.c float.c itold.c fnmatch.c \
- fnmatch_loop.c fnmatch.c free.c frexp.c frexp.c frexpl.c \
- fstat.c stat-w32.c at-func.c fstatat.c getcwd.c getcwd-lgpl.c \
- getdelim.c getdtablesize.c getline.c getlogin_r.c getrandom.c \
- gettimeofday.c glob.c glob_pattern_p.c globfree.c inet_ntop.c \
- isblank.c isnan.c isnand.c isnan.c isnanl.c lstat.c malloc.c \
+ chdir-long.c chown.c fchown-stub.c close.c closedir.c dirfd.c \
+ dup.c dup2.c error.c fchdir.c fcntl.c fdopendir.c ffs.c \
+ float.c itold.c fnmatch.c fnmatch_loop.c fnmatch.c free.c \
+ frexp.c frexp.c frexpl.c fstat.c stat-w32.c at-func.c \
+ fstatat.c getcwd.c getcwd-lgpl.c getdelim.c getdtablesize.c \
+ getline.c getlogin_r.c getrandom.c gettimeofday.c glob.c \
+ glob_pattern_p.c globfree.c inet_ntop.c isblank.c isnan.c \
+ isnand.c isnan.c isnanl.c lstat.c malloc.c \
lc-charset-dispatch.c mbrtowc.c mbtowc-lock.c mbsinit.c \
mbsrtowcs-state.c mbsrtowcs.c mbtowc.c memchr.c memmem.c \
memmem.c mempcpy.c memrchr.c mkdir.c mkdtemp.c mkostemp.c \
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/btowc.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/canonicalize-lgpl.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/chdir-long.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/chown.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cloexec.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/close.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/closedir.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/error.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/exitfail.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/fchdir.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/fchown-stub.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/fcntl.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/fd-hook.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/fd-safer-flag.Po@am__quote@
--- /dev/null
+/* provide consistent interface to chown for systems that don't interpret
+ an ID of -1 as meaning "don't change the corresponding ID".
+
+ Copyright (C) 1997, 2004-2007, 2009-2021 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 <https://www.gnu.org/licenses/>. */
+
+/* written by Jim Meyering */
+
+#include <config.h>
+
+/* Specification. */
+#include <unistd.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdbool.h>
+#include <string.h>
+#include <sys/stat.h>
+
+#if !HAVE_CHOWN
+
+/* Simple stub that always fails with ENOSYS, for mingw. */
+int
+chown (const char *file _GL_UNUSED, uid_t uid _GL_UNUSED,
+ gid_t gid _GL_UNUSED)
+{
+ errno = ENOSYS;
+ return -1;
+}
+
+#else /* HAVE_CHOWN */
+
+/* Below we refer to the system's chown(). */
+# undef chown
+
+/* Provide a more-closely POSIX-conforming version of chown on
+ systems with one or both of the following problems:
+ - chown doesn't treat an ID of -1 as meaning
+ "don't change the corresponding ID".
+ - chown doesn't dereference symlinks. */
+
+int
+rpl_chown (const char *file, uid_t uid, gid_t gid)
+{
+ struct stat st;
+ bool stat_valid = false;
+ int result;
+
+# if CHOWN_CHANGE_TIME_BUG
+ if (gid != (gid_t) -1 || uid != (uid_t) -1)
+ {
+ if (stat (file, &st))
+ return -1;
+ stat_valid = true;
+ }
+# endif
+
+# if CHOWN_FAILS_TO_HONOR_ID_OF_NEGATIVE_ONE
+ if (gid == (gid_t) -1 || uid == (uid_t) -1)
+ {
+ /* Stat file to get id(s) that should remain unchanged. */
+ if (!stat_valid && stat (file, &st))
+ return -1;
+ if (gid == (gid_t) -1)
+ gid = st.st_gid;
+ if (uid == (uid_t) -1)
+ uid = st.st_uid;
+ }
+# endif
+
+# if CHOWN_MODIFIES_SYMLINK
+ {
+ /* Handle the case in which the system-supplied chown function
+ does *not* follow symlinks. Instead, it changes permissions
+ on the symlink itself. To work around that, we open the
+ file (but this can fail due to lack of read or write permission) and
+ use fchown on the resulting descriptor. */
+ int open_flags = O_NONBLOCK | O_NOCTTY | O_CLOEXEC;
+ int fd = open (file, O_RDONLY | open_flags);
+ if (0 <= fd
+ || (errno == EACCES
+ && 0 <= (fd = open (file, O_WRONLY | open_flags))))
+ {
+ int saved_errno;
+ bool fchown_socket_failure;
+
+ result = fchown (fd, uid, gid);
+ saved_errno = errno;
+
+ /* POSIX says fchown can fail with errno == EINVAL on sockets
+ and pipes, so fall back on chown in that case. */
+ fchown_socket_failure =
+ (result != 0 && saved_errno == EINVAL
+ && fstat (fd, &st) == 0
+ && (S_ISFIFO (st.st_mode) || S_ISSOCK (st.st_mode)));
+
+ close (fd);
+
+ if (! fchown_socket_failure)
+ {
+ errno = saved_errno;
+ return result;
+ }
+ }
+ else if (errno != EACCES)
+ return -1;
+ }
+# endif
+
+# if CHOWN_TRAILING_SLASH_BUG
+ if (!stat_valid)
+ {
+ size_t len = strlen (file);
+ if (len && file[len - 1] == '/' && stat (file, &st))
+ return -1;
+ }
+# endif
+
+ result = chown (file, uid, gid);
+
+# if CHOWN_CHANGE_TIME_BUG
+ if (result == 0 && stat_valid
+ && (uid == st.st_uid || uid == (uid_t) -1)
+ && (gid == st.st_gid || gid == (gid_t) -1))
+ {
+ /* No change in ownership, but at least one argument was not -1,
+ so we are required to update ctime. Since chown succeeded,
+ we assume that chmod will do likewise. Fortunately, on all
+ known systems where a 'no-op' chown skips the ctime update, a
+ 'no-op' chmod still does the trick. */
+ result = chmod (file, st.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO
+ | S_ISUID | S_ISGID | S_ISVTX));
+ }
+# endif
+
+ return result;
+}
+
+#endif /* HAVE_CHOWN */
--- /dev/null
+/* Change ownership of a file.
+ Copyright (C) 2004-2021 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 <https://www.gnu.org/licenses/>. */
+
+/* Written by Paul Eggert, 2004. */
+
+#include <config.h>
+
+#include <sys/types.h>
+#include <errno.h>
+
+/* A trivial substitute for 'fchown'.
+
+ DJGPP 2.03 and earlier (and perhaps later) don't have 'fchown',
+ so we pretend no-one has permission for this operation. */
+
+int
+fchown (int fd, uid_t uid, gid_t gid)
+{
+ errno = EPERM;
+ return -1;
+}
--- /dev/null
+# serial 35
+# Determine whether we need the chown wrapper.
+
+dnl Copyright (C) 1997-2001, 2003-2005, 2007, 2009-2021 Free Software
+dnl Foundation, Inc.
+
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+# chown should accept arguments of -1 for uid and gid, and it should
+# dereference symlinks. If it doesn't, arrange to use the replacement
+# function.
+
+# From Jim Meyering.
+
+# This is taken from the following Autoconf patch:
+# https://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=commitdiff;h=7fbb553727ed7e0e689a17594b58559ecf3ea6e9
+AC_DEFUN([AC_FUNC_CHOWN],
+[
+ AC_REQUIRE([AC_TYPE_UID_T])dnl
+ AC_REQUIRE([AC_CANONICAL_HOST])dnl for cross-compiles
+ AC_CHECK_HEADERS([unistd.h])
+ AC_CACHE_CHECK([for working chown],
+ [ac_cv_func_chown_works],
+ [AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM(
+ [AC_INCLUDES_DEFAULT
+ [#include <fcntl.h>
+ ]GL_MDA_DEFINES],
+ [[
+ char *f = "conftest.chown";
+ struct stat before, after;
+
+ if (creat (f, 0600) < 0)
+ return 1;
+ if (stat (f, &before) < 0)
+ return 1;
+ if (chown (f, (uid_t) -1, (gid_t) -1) == -1)
+ return 1;
+ if (stat (f, &after) < 0)
+ return 1;
+ return ! (before.st_uid == after.st_uid && before.st_gid == after.st_gid);
+ ]])
+ ],
+ [ac_cv_func_chown_works=yes],
+ [ac_cv_func_chown_works=no],
+ [case "$host_os" in # ((
+ # Guess yes on Linux systems.
+ linux-* | linux) ac_cv_func_chown_works="guessing yes" ;;
+ # Guess yes on glibc systems.
+ *-gnu* | gnu*) ac_cv_func_chown_works="guessing yes" ;;
+ # Guess no on native Windows.
+ mingw*) ac_cv_func_chown_works="guessing no" ;;
+ # If we don't know, obey --enable-cross-guesses.
+ *) ac_cv_func_chown_works="$gl_cross_guess_normal" ;;
+ esac
+ ])
+ rm -f conftest.chown
+ ])
+ case "$ac_cv_func_chown_works" in
+ *yes)
+ AC_DEFINE([HAVE_CHOWN], [1],
+ [Define to 1 if your system has a working `chown' function.])
+ ;;
+ esac
+])# AC_FUNC_CHOWN
+
+AC_DEFUN_ONCE([gl_FUNC_CHOWN],
+[
+ AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
+ AC_REQUIRE([AC_TYPE_UID_T])
+ AC_REQUIRE([AC_FUNC_CHOWN])
+ AC_REQUIRE([gl_FUNC_CHOWN_FOLLOWS_SYMLINK])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ AC_CHECK_FUNCS_ONCE([chown fchown])
+
+ dnl mingw lacks chown altogether.
+ if test $ac_cv_func_chown = no; then
+ HAVE_CHOWN=0
+ else
+ dnl Some old systems treated chown like lchown.
+ case "$gl_cv_func_chown_follows_symlink" in
+ *yes) ;;
+ *) REPLACE_CHOWN=1 ;;
+ esac
+
+ dnl Some old systems tried to use uid/gid -1 literally.
+ case "$ac_cv_func_chown_works" in
+ *no)
+ AC_DEFINE([CHOWN_FAILS_TO_HONOR_ID_OF_NEGATIVE_ONE], [1],
+ [Define if chown is not POSIX compliant regarding IDs of -1.])
+ REPLACE_CHOWN=1
+ ;;
+ esac
+
+ dnl Solaris 9 ignores trailing slash.
+ dnl FreeBSD 7.2 mishandles trailing slash on symlinks.
+ dnl Likewise for AIX 7.1.
+ AC_CACHE_CHECK([whether chown honors trailing slash],
+ [gl_cv_func_chown_slash_works],
+ [touch conftest.file && rm -f conftest.link
+ AC_RUN_IFELSE([AC_LANG_PROGRAM([[
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+]GL_MDA_DEFINES],
+ [[if (symlink ("conftest.file", "conftest.link")) return 1;
+ if (chown ("conftest.link/", getuid (), getgid ()) == 0) return 2;
+ ]])],
+ [gl_cv_func_chown_slash_works=yes],
+ [gl_cv_func_chown_slash_works=no],
+ [case "$host_os" in
+ # Guess yes on glibc systems.
+ *-gnu*) gl_cv_func_chown_slash_works="guessing yes" ;;
+ # Guess yes on musl systems.
+ *-musl*) gl_cv_func_chown_slash_works="guessing yes" ;;
+ # If we don't know, obey --enable-cross-guesses.
+ *) gl_cv_func_chown_slash_works="$gl_cross_guess_normal" ;;
+ esac
+ ])
+ rm -f conftest.link conftest.file])
+ case "$gl_cv_func_chown_slash_works" in
+ *yes) ;;
+ *)
+ AC_DEFINE([CHOWN_TRAILING_SLASH_BUG], [1],
+ [Define to 1 if chown mishandles trailing slash.])
+ REPLACE_CHOWN=1
+ ;;
+ esac
+
+ dnl OpenBSD fails to update ctime if ownership does not change.
+ AC_CACHE_CHECK([whether chown always updates ctime],
+ [gl_cv_func_chown_ctime_works],
+ [AC_RUN_IFELSE([AC_LANG_PROGRAM([[
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+]GL_MDA_DEFINES],
+ [[struct stat st1, st2;
+ if (close (creat ("conftest.file", 0600))) return 1;
+ if (stat ("conftest.file", &st1)) return 2;
+ sleep (1);
+ if (chown ("conftest.file", st1.st_uid, st1.st_gid)) return 3;
+ if (stat ("conftest.file", &st2)) return 4;
+ if (st2.st_ctime <= st1.st_ctime) return 5;
+ ]])],
+ [gl_cv_func_chown_ctime_works=yes],
+ [gl_cv_func_chown_ctime_works=no],
+ [case "$host_os" in
+ # Guess yes on glibc systems.
+ *-gnu*) gl_cv_func_chown_ctime_works="guessing yes" ;;
+ # Guess yes on musl systems.
+ *-musl*) gl_cv_func_chown_ctime_works="guessing yes" ;;
+ # If we don't know, obey --enable-cross-guesses.
+ *) gl_cv_func_chown_ctime_works="$gl_cross_guess_normal" ;;
+ esac
+ ])
+ rm -f conftest.file])
+ case "$gl_cv_func_chown_ctime_works" in
+ *yes) ;;
+ *)
+ AC_DEFINE([CHOWN_CHANGE_TIME_BUG], [1], [Define to 1 if chown fails
+ to change ctime when at least one argument was not -1.])
+ REPLACE_CHOWN=1
+ ;;
+ esac
+ fi
+])
+
+# Determine whether chown follows symlinks (it should).
+AC_DEFUN_ONCE([gl_FUNC_CHOWN_FOLLOWS_SYMLINK],
+[
+ AC_CACHE_CHECK(
+ [whether chown dereferences symlinks],
+ [gl_cv_func_chown_follows_symlink],
+ [
+ AC_RUN_IFELSE([AC_LANG_SOURCE([[
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+]GL_MDA_DEFINES[
+ int
+ main ()
+ {
+ int result = 0;
+ char const *dangling_symlink = "conftest.dangle";
+
+ unlink (dangling_symlink);
+ if (symlink ("conftest.no-such", dangling_symlink))
+ abort ();
+
+ /* Exit successfully on a conforming system,
+ i.e., where chown must fail with ENOENT. */
+ if (chown (dangling_symlink, getuid (), getgid ()) == 0)
+ result |= 1;
+ if (errno != ENOENT)
+ result |= 2;
+ return result;
+ }
+ ]])],
+ [gl_cv_func_chown_follows_symlink=yes],
+ [gl_cv_func_chown_follows_symlink=no],
+ [gl_cv_func_chown_follows_symlink="guessing yes"]
+ )
+ ]
+ )
+
+ case "$gl_cv_func_chown_follows_symlink" in
+ *yes) ;;
+ *)
+ AC_DEFINE([CHOWN_MODIFIES_SYMLINK], [1],
+ [Define if chown modifies symlinks.])
+ ;;
+ esac
+])
# --no-vc-files \
# alloca \
# canonicalize-lgpl \
+# chown \
# count-one-bits \
# dirent \
# dirfd \
gl_MODULES([
alloca
canonicalize-lgpl
+ chown
count-one-bits
dirent
dirfd
# Code from module canonicalize-lgpl:
# Code from module chdir:
# Code from module chdir-long:
+ # Code from module chown:
# Code from module clock-time:
# Code from module cloexec:
# Code from module close:
AC_LIBOBJ([chdir-long])
gl_PREREQ_CHDIR_LONG
fi
+ gl_FUNC_CHOWN
+ if test $HAVE_CHOWN = 0 || test $REPLACE_CHOWN = 1; then
+ AC_LIBOBJ([chown])
+ fi
+ if test $REPLACE_CHOWN = 1 && test $ac_cv_func_fchown = no; then
+ AC_LIBOBJ([fchown-stub])
+ fi
+ gl_UNISTD_MODULE_INDICATOR([chown])
gl_CLOCK_TIME
gl_MODULE_INDICATOR_FOR_TESTS([cloexec])
gl_FUNC_CLOSE
lib/cdefs.h
lib/chdir-long.c
lib/chdir-long.h
+ lib/chown.c
lib/cloexec.c
lib/cloexec.h
lib/close.c
lib/exitfail.c
lib/exitfail.h
lib/fchdir.c
+ lib/fchown-stub.c
lib/fcntl.c
lib/fcntl.in.h
lib/fd-hook.c
m4/builtin-expect.m4
m4/canonicalize.m4
m4/chdir-long.m4
+ m4/chown.m4
m4/clock_time.m4
m4/close.m4
m4/closedir.m4
IMPORTED_GNULIB_MODULES="\
alloca \
canonicalize-lgpl \
+ chown \
count-one-bits \
dirent \
dirfd \
projects / thirdparty / binutils-gdb.git / commitdiff
