xref: /freebsd/usr.sbin/setpmac/setpmac.c (revision 81ad6265)
1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
3  *
4  * Copyright (c) 2002 Networks Associates Technology, Inc.
5  * All rights reserved.
6  *
7  * This software was developed for the FreeBSD Project by Network
8  * Associates Laboratories, the Security Research Division of Network
9  * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
10  * ("CBOSS"), as part of the DARPA CHATS research program.
11  *
12  * Redistribution and use in source and binary forms, with or without
13  * modification, are permitted provided that the following conditions
14  * are met:
15  * 1. Redistributions of source code must retain the above copyright
16  *    notice, this list of conditions and the following disclaimer.
17  * 2. Redistributions in binary form must reproduce the above copyright
18  *    notice, this list of conditions and the following disclaimer in the
19  *    documentation and/or other materials provided with the distribution.
20  * 3. The names of the authors may not be used to endorse or promote
21  *    products derived from this software without specific prior written
22  *    permission.
23  *
24  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34  * SUCH DAMAGE.
35  *
36  * $FreeBSD$
37  */
38 #include <sys/types.h>
39 #include <sys/mac.h>
40 
41 #include <err.h>
42 #include <paths.h>
43 #include <stdio.h>
44 #include <stdlib.h>
45 #include <string.h>
46 #include <sysexits.h>
47 #include <unistd.h>
48 
49 #define	MAXELEMENTS	32
50 
51 static void
52 usage(void)
53 {
54 
55 	fprintf(stderr, "setpmac [label] [command] [args ...]\n");
56 	exit (EX_USAGE);
57 }
58 
59 int
60 main(int argc, char *argv[])
61 {
62 	const char *shell;
63 	mac_t label;
64 	int error;
65 
66 
67 	if (argc < 3)
68 		usage();
69 
70 	error = mac_from_text(&label, argv[1]);
71 	if (error != 0) {
72 		perror("mac_from_text");
73 		return (-1);
74 	}
75 
76 	error = mac_set_proc(label);
77 	if (error != 0) {
78 		perror(argv[1]);
79 		return (-1);
80 	}
81 
82 	mac_free(label);
83 
84 	if (argc >= 3) {
85 		execvp(argv[2], argv + 2);
86 		err(1, "%s", argv[2]);
87 	} else {
88 		if (!(shell = getenv("SHELL")))
89 			shell = _PATH_BSHELL;
90 		execlp(shell, shell, "-i", (char *)NULL);
91 		err(1, "%s", shell);
92 	}
93 	/* NOTREACHED */
94 }
95