xref: /freebsd/usr.sbin/setpmac/setpmac.c (revision 6780ab54325a71e7e70112b11657973edde8655e)
1 /*-
2  * Copyright (c) 2002 Networks Associates Technology, Inc.
3  * All rights reserved.
4  *
5  * This software was developed for the FreeBSD Project by Network
6  * Associates Laboratories, the Security Research Division of Network
7  * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
8  * ("CBOSS"), as part of the DARPA CHATS research program.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. The names of the authors may not be used to endorse or promote
19  *    products derived from this software without specific prior written
20  *    permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32  * SUCH DAMAGE.
33  *
34  * $FreeBSD$
35  */
36 #include <sys/types.h>
37 #include <sys/mac.h>
38 
39 #include <err.h>
40 #include <paths.h>
41 #include <stdio.h>
42 #include <stdlib.h>
43 #include <string.h>
44 #include <sysexits.h>
45 #include <unistd.h>
46 
47 #define	MAXELEMENTS	32
48 
49 void
50 usage(void)
51 {
52 
53 	fprintf(stderr, "setpmac [label] [command] [args ...]\n");
54 	exit (EX_USAGE);
55 }
56 
57 int
58 main(int argc, char *argv[])
59 {
60 	char *shell;
61 	mac_t label;
62 	int error;
63 
64 
65 	if (argc < 3)
66 		usage();
67 
68 	error = mac_from_text(&label, argv[1]);
69 	if (error != 0) {
70 		perror("mac_from_text");
71 		return (-1);
72 	}
73 
74 	error = mac_set_proc(label);
75 	if (error != 0) {
76 		perror(argv[1]);
77 		return (-1);
78 	}
79 
80 	mac_free(label);
81 
82 	if (argc >= 3) {
83 		execvp(argv[2], argv + 2);
84 		err(1, "%s", argv[2]);
85 	} else {
86 		if (!(shell = getenv("SHELL")))
87 			shell = _PATH_BSHELL;
88 		execlp(shell, shell, "-i", (char *)NULL);
89 		err(1, "%s", shell);
90 	}
91 	/* NOTREACHED */
92 }
93