* Don't call getnameinfo() if we've already populated the addr_buf.
[rsync.git] / getgroups.c
blobe747c2902ee2304701f313e513909c8ede5e7a86
1 /*
2 * Copyright (C) 2002 by Martin Pool
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 /**
20 * @file getgroups.c
22 * Print out the gids of all groups for the current user. This is
23 * like `id -G` on Linux, but it's too hard to find a portable
24 * equivalent.
25 **/
27 #include "rsync.h"
29 #ifndef NGROUPS
30 /* It ought to be defined, but just in case. */
31 # define NGROUPS 32
32 #endif
34 int main(int argc, char *argv[])
36 int n, i;
37 gid_t list[NGROUPS];
39 if ((n = getgroups(NGROUPS, list)) == -1) {
40 perror("getgroups");
41 return 1;
44 for (i = 0; i < n; i++)
45 printf("%u ", list[i]);
46 printf("\n");
48 return 0;