Mercurial > hg > octave-lojdl > gnulib-hg
changeset 1428:b2f74df5b9c6
(jm_FUNC_CHOWN): Add a check to verify that the
uid and gid actually remain unchanged.
| author | Jim Meyering <jim@meyering.net> |
|---|---|
| date | Thu, 09 Jul 1998 14:29:11 +0000 |
| parents | 2056a0dc4888 |
| children | 0904420c44e6 |
| files | m4/chown.m4 |
| diffstat | 1 files changed, 9 insertions(+), 1 deletions(-) [+] |
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--- a/m4/chown.m4 +++ b/m4/chown.m4 @@ -17,6 +17,7 @@ AC_CACHE_CHECK([for working chown], jm_cv_func_working_chown, [AC_TRY_RUN([ # include <sys/types.h> +# include <stat.h> # include <fcntl.h> # ifdef HAVE_UNISTD_H # include <unistd.h> @@ -28,7 +29,14 @@ char *f = "conftestchown"; if (creat (f, 0600) < 0) exit (1); - exit (chown (f, (uid_t) -1, (gid_t) -1) == -1 ? 1 : 0); + if (stat (f, &before) < 0) + exit (1); + if (chown (f, (uid_t) -1, (gid_t) -1) == -1) + exit (1); + if (stat (f, &after) < 0) + exit (1); + exit ((before.st_uid == after.st_uid + && before.st_gid == after.st_gid) ? 0 : 1); } ], jm_cv_func_working_chown=yes,