1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27
28#include <stdio.h>
29#include <stdlib.h>
30#include <unistd.h>
31#include <string.h>
32#include <errno.h>
33#include <pwd.h>
34
35int
36main(int argc, char *argv[])
37{
38	char *plogin = NULL;
39	char cmds[BUFSIZ] = { 0 };
40	char sep[] = " ";
41	struct passwd *ppw = NULL;
42	int i, len;
43
44	if (argc < 3 || strlen(argv[1]) == 0) {
45		(void) printf("\tUsage: %s <login> <commands> ...\n", argv[0]);
46		return (1);
47	}
48
49	plogin = argv[1];
50	len = 0;
51	for (i = 2; i < argc; i++) {
52		(void) snprintf(cmds+len, sizeof (cmds)-len,
53		    "%s%s", argv[i], sep);
54		len += strlen(argv[i]) + strlen(sep);
55	}
56
57	if ((ppw = getpwnam(plogin)) == NULL) {
58		perror("getpwnam");
59		return (errno);
60	}
61	if (setgid(ppw->pw_gid) != 0) {
62		perror("setgid");
63		return (errno);
64	}
65	if (setuid(ppw->pw_uid) != 0) {
66		perror("setuid");
67		return (errno);
68	}
69
70	if (execl("/bin/sh", "sh",  "-c", cmds, (char *)0) != 0) {
71		perror("execl");
72		return (errno);
73	}
74
75	return (0);
76}
77