xref: /freebsd/usr.sbin/getpmac/getpmac.c (revision 3bdf775801b218aa5a89564839405b122f4b233e)
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 static void
50 usage(void)
51 {
52 
53 	fprintf(stderr, "getpmac [-l list,of,labels] [-p pid]\n");
54 	exit (EX_USAGE);
55 }
56 
57 int
58 main(int argc, char *argv[])
59 {
60 	char *labellist, *string;
61 	mac_t label;
62 	pid_t pid;
63 	int ch, error, pid_set;
64 
65 	pid_set = 0;
66 	pid = 0;
67 	labellist = NULL;
68 	while ((ch = getopt(argc, argv, "l:p:")) != -1) {
69 		switch (ch) {
70 		case 'l':
71 			if (labellist != NULL)
72 				usage();
73 			labellist = argv[optind - 1];
74 			break;
75 		case 'p':
76 			if (pid_set)
77 				usage();
78 			pid = atoi(argv[optind - 1]);
79 			pid_set = 1;
80 			break;
81 		default:
82 			usage();
83 		}
84 
85 	}
86 
87 	argc -= optind;
88 	argv += optind;
89 
90 	if (argc != 0)
91 		usage();
92 
93 	if (labellist != NULL)
94 		error = mac_prepare(&label, labellist);
95 	else
96 		error = mac_prepare_process_label(&label);
97 	if (error != 0) {
98 		perror("mac_prepare");
99 		return (-1);
100 	}
101 
102 	if (pid_set) {
103 		error = mac_get_pid(pid, label);
104 		if (error)
105 			perror("mac_get_pid");
106 	} else {
107 		error = mac_get_proc(label);
108 		if (error)
109 			perror("mac_get_proc");
110 	}
111 	if (error) {
112 		mac_free(label);
113 		exit (-1);
114 	}
115 	error = mac_to_text(label, &string);
116 	if (error != 0) {
117 		perror("mac_to_text");
118 		exit(EX_DATAERR);
119 	}
120 
121 	if (strlen(string) > 0)
122 		printf("%s\n", string);
123 
124 	mac_free(label);
125 	free(string);
126 	exit(EX_OK);
127 }
128