1 /* vi: set sw=4 ts=4: */
5 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 /* Hacked by Tito Ragusa (c) 2004 <farmatito@tiscali.it> to make it more
25 * if bufsize is > 0 char *group cannot be set to NULL
26 * on success groupname is written on static allocated buffer
27 * on failure gid as string is written to buffer and NULL is returned
28 * if bufsize is = 0 char *group can be set to NULL
29 * on success groupname is returned
30 * on failure NULL is returned
31 * if bufsize is < 0 char *group can be set to NULL
32 * on success groupname is returned
33 * on failure an error message is printed and the program exits
44 /* gets a groupname given a gid */
45 char * my_getgrgid(char *group, long gid, int bufsize)
47 struct group *mygroup;
49 mygroup = getgrgid(gid);
52 assert(group != NULL);
53 snprintf(group, bufsize, "%ld", (long)gid);
56 bb_error_msg_and_die("unknown gid %ld", (long)gid);
62 assert(group != NULL);
63 return safe_strncpy(group, mygroup->gr_name, bufsize);
65 return mygroup->gr_name;