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 #include <stdio.h>
28 #include <stdlib.h>
29 #include <unistd.h>
30 #include <string.h>
31 #include <errno.h>
32 #include <pwd.h>
33
34 #define EXECSHELL "/usr/xpg4/bin/sh"
35
36 int
main(int argc,char * argv[])37 main(int argc, char *argv[])
38 {
39 char *plogin = NULL;
40 char cmds[BUFSIZ] = { 0 };
41 char sep[] = " ";
42 struct passwd *ppw = NULL;
43 int i, len;
44
45 if (argc < 3 || strlen(argv[1]) == 0) {
46 (void) printf("\tUsage: %s <login> <commands> ...\n", argv[0]);
47 return (1);
48 }
49
50 plogin = argv[1];
51 len = 0;
52 for (i = 2; i < argc; i++) {
53 (void) snprintf(cmds+len, sizeof (cmds)-len,
54 "%s%s", argv[i], sep);
55 len += strlen(argv[i]) + strlen(sep);
56 }
57
58 if ((ppw = getpwnam(plogin)) == NULL) {
59 perror("getpwnam");
60 return (errno);
61 }
62 if (setgid(ppw->pw_gid) != 0) {
63 perror("setgid");
64 return (errno);
65 }
66 if (setuid(ppw->pw_uid) != 0) {
67 perror("setuid");
68 return (errno);
69 }
70
71 if (execl(EXECSHELL, "sh", "-c", cmds, (char *)NULL) != 0) {
72 perror("execl: " EXECSHELL);
73 return (errno);
74 }
75
76 return (0);
77 }
78