1 /* Provide a stub lchown function for systems that lack it.
3 Copyright (C) 1998, 1999, 2002, 2004, 2006, 2007 Free Software
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software Foundation,
18 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
20 /* written by Jim Meyering */
24 /* If the system chown does not follow symlinks, we don't want it
25 replaced by gnulib's chown, which does follow symlinks. */
26 #if CHOWN_MODIFIES_SYMLINK
27 # define REPLACE_CHOWN 0
34 /* Some systems don't have EOPNOTSUPP. */
37 # define EOPNOTSUPP ENOTSUP
39 /* Some systems don't have ENOTSUP either. */
40 # define EOPNOTSUPP EINVAL
44 /* Work just like chown, except when FILE is a symbolic link.
45 In that case, set errno to EOPNOTSUPP and return -1.
46 But if autoconf tests determined that chown modifies
47 symlinks, then just call chown. */
50 lchown (const char *file, uid_t uid, gid_t gid)
52 #if ! CHOWN_MODIFIES_SYMLINK
55 if (lstat (file, &stats) == 0 && S_ISLNK (stats.st_mode))
62 return chown (file, uid, gid);