2 * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of version 2 of the GNU General Public License as
6 * published by the Free Software Foundation.
8 * This program is distributed in the hope that it would be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12 * Further, this software is distributed without any warranty that it is
13 * free of the rightful claim of any third person regarding infringement
14 * or the like. Any license provided herein, whether implied or
15 * otherwise, applies only to this software file. Patent licenses, if
16 * any, provided herein do not apply to combinations of this program with
17 * other software, or any other product whatsoever.
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, write the Free Software Foundation, Inc., 59
21 * Temple Place - Suite 330, Boston MA 02111-1307, USA.
23 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
24 * Mountain View, CA 94043, or:
28 * For further information regarding this notice, see:
30 * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
34 * Run a command with a particular
36 * - effective group id
37 * - supplementary group list
49 fprintf(stderr, "usage: %s [-u uid] [-g gid] [-s gid] cmd\n"
51 " -u - effective user-id\n"
52 " -g - effective group-id\n"
53 " -s - supplementary group-id\n", prog);
60 main(int argc, char **argv)
70 prog = basename(argv[0]);
72 while ((c = getopt(argc, argv, "u:g:s:")) != -1) {
81 if (sup_cnt+1 > SUP_MAX) {
82 fprintf(stderr, "%s: too many sup groups\n", prog);
85 sgids[sup_cnt++] = atoi(optarg);
93 /* build up the cmd */
94 for ( ; optind < argc; optind++) {
95 cmd = realloc(cmd, (cmd==NULL?0:strlen(cmd)) +
96 strlen(argv[optind]) + 4);
98 strcat(cmd, argv[optind]);
103 if (setegid(gid) == -1) {
104 fprintf(stderr, "%s: setegid(%d) failed: %s\n",
105 prog, gid, strerror(errno));
111 if (setgroups(sup_cnt, sgids) == -1) {
112 fprintf(stderr, "%s: setgroups() failed: %s\n",
113 prog, strerror(errno));
119 if (seteuid(uid) == -1) {
120 fprintf(stderr, "%s: seteuid(%d) failed: %s\n",
121 prog, uid, strerror(errno));
126 status = system(cmd);
128 if (WIFSIGNALED(status)) {
129 fprintf(stderr, "%s: command terminated with signal %d\n",
130 prog, WTERMSIG(status));
133 else if (WIFEXITED(status)) {
134 exit(WEXITSTATUS(status));
137 fprintf(stderr, "%s: command bizarre wait status 0x%x\n",