diff options
Diffstat (limited to 'gnu/lchown.c')
| -rw-r--r-- | gnu/lchown.c | 118 |
1 files changed, 0 insertions, 118 deletions
diff --git a/gnu/lchown.c b/gnu/lchown.c deleted file mode 100644 index 0753010..0000000 --- a/gnu/lchown.c +++ /dev/null @@ -1,118 +0,0 @@ -/* -*- buffer-read-only: t -*- vi: set ro: */ -/* DO NOT EDIT! GENERATED AUTOMATICALLY! */ -/* Provide a stub lchown function for systems that lack it. - - Copyright (C) 1998-1999, 2002, 2004, 2006-2007, 2009-2010 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/>. */ - -/* written by Jim Meyering */ - -#include <config.h> - -#include <unistd.h> - -#include <errno.h> -#include <stdbool.h> -#include <string.h> -#include <sys/stat.h> - -#if !HAVE_LCHOWN - -/* If the system chown does not follow symlinks, we don't want it - replaced by gnulib's chown, which does follow symlinks. */ -# if CHOWN_MODIFIES_SYMLINK -# undef chown -# endif - -/* Work just like chown, except when FILE is a symbolic link. - In that case, set errno to EOPNOTSUPP and return -1. - But if autoconf tests determined that chown modifies - symlinks, then just call chown. */ - -int -lchown (const char *file, uid_t uid, gid_t gid) -{ -# if HAVE_CHOWN -# if ! CHOWN_MODIFIES_SYMLINK - struct stat stats; - - if (lstat (file, &stats) == 0 && S_ISLNK (stats.st_mode)) - { - errno = EOPNOTSUPP; - return -1; - } -# endif - - return chown (file, uid, gid); - -# else /* !HAVE_CHOWN */ - errno = ENOSYS; - return -1; -# endif -} - -#else /* HAVE_LCHOWN */ - -# undef lchown - -/* Work around trailing slash bugs in lchown. */ -int -rpl_lchown (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 (lstat (file, &st)) - return -1; - stat_valid = true; - if (!S_ISLNK (st.st_mode)) - return chown (file, uid, gid); - } -# endif - -# if CHOWN_TRAILING_SLASH_BUG - if (!stat_valid) - { - size_t len = strlen (file); - if (len && file[len - 1] == '/') - return chown (file, uid, gid); - } -# endif - - result = lchown (file, uid, gid); - -# if CHOWN_CHANGE_TIME_BUG && HAVE_LCHMOD - 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 lchown succeeded, - we assume that lchmod will do likewise. But if the system - lacks lchmod and lutimes, we are out of luck. Oh well. */ - result = lchmod (file, st.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO - | S_ISUID | S_ISGID | S_ISVTX)); - } -# endif - - return result; -} - -#endif /* HAVE_LCHOWN */ |