1 /* provide consistent interface to chown for systems that don't interpret
2 an ID of -1 as meaning `don't change the corresponding ID'.
3 Copyright (C) 1997 Free Software Foundation, Inc.
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2, or (at your option)
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software Foundation,
17 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
19 /* written by Jim Meyering */
22 #include <sys/types.h>
27 /* FIXME: describe. */
30 chown (file, gid, uid)
35 if (gid == (gid_t) -1 || uid == (uid_t) -1)
37 struct stat file_stats;
39 /* Stat file to get id(s) that should remain unchanged. */
40 if (stat (file, &file_stats))
43 if (gid == (gid_t) -1)
44 gid = file_stats.st_gid;
46 if (uid == (uid_t) -1)
47 uid = file_stats.st_uid;
52 return chown (file, gid, uid);