00001 /* 00002 * Copyright (C) 2002 by Martin Pool 00003 * 00004 * This program is free software; you can redistribute it and/or modify 00005 * it under the terms of the GNU General Public License as published by 00006 * the Free Software Foundation; either version 2 of the License, or 00007 * (at your option) any later version. 00008 * 00009 * This program is distributed in the hope that it will be useful, 00010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00012 * GNU General Public License for more details. 00013 * 00014 * You should have received a copy of the GNU General Public License 00015 * along with this program; if not, write to the Free Software 00016 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 00017 */ 00018 00019 /** 00020 * @file getgroups.c 00021 * 00022 * Print out the gids of all groups for the current user. This is 00023 * like `id -G` on Linux, but it's too hard to find a portable 00024 * equivalent. 00025 **/ 00026 00027 #include "rsync.h" 00028 00029 #ifndef NGROUPS 00030 /* It ought to be defined, but just in case. */ 00031 # define NGROUPS 32 00032 #endif 00033 00034 int main(int argc, char *argv[]) 00035 { 00036 int n, i; 00037 gid_t list[NGROUPS]; 00038 00039 if ((n = getgroups(NGROUPS, list)) == -1) { 00040 perror("getgroups"); 00041 return 1; 00042 } 00043 00044 for (i = 0; i < n; i++) 00045 printf("%u ", list[i]); 00046 printf("\n"); 00047 00048 return 0; 00049 }