xref: /freebsd/usr.sbin/getpmac/getpmac.c (revision b00ab754)
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, "getpmac [-l list,of,labels] [-p pid]\n");
56 	exit (EX_USAGE);
57 }
58 
59 int
60 main(int argc, char *argv[])
61 {
62 	char *labellist, *string;
63 	mac_t label;
64 	pid_t pid;
65 	int ch, error, pid_set;
66 
67 	pid_set = 0;
68 	pid = 0;
69 	labellist = NULL;
70 	while ((ch = getopt(argc, argv, "l:p:")) != -1) {
71 		switch (ch) {
72 		case 'l':
73 			if (labellist != NULL)
74 				usage();
75 			labellist = argv[optind - 1];
76 			break;
77 		case 'p':
78 			if (pid_set)
79 				usage();
80 			pid = atoi(argv[optind - 1]);
81 			pid_set = 1;
82 			break;
83 		default:
84 			usage();
85 		}
86 
87 	}
88 
89 	argc -= optind;
90 	argv += optind;
91 
92 	if (argc != 0)
93 		usage();
94 
95 	if (labellist != NULL)
96 		error = mac_prepare(&label, labellist);
97 	else
98 		error = mac_prepare_process_label(&label);
99 	if (error != 0) {
100 		perror("mac_prepare");
101 		return (-1);
102 	}
103 
104 	if (pid_set) {
105 		error = mac_get_pid(pid, label);
106 		if (error)
107 			perror("mac_get_pid");
108 	} else {
109 		error = mac_get_proc(label);
110 		if (error)
111 			perror("mac_get_proc");
112 	}
113 	if (error) {
114 		mac_free(label);
115 		exit (-1);
116 	}
117 	error = mac_to_text(label, &string);
118 	if (error != 0) {
119 		perror("mac_to_text");
120 		exit(EX_DATAERR);
121 	}
122 
123 	if (strlen(string) > 0)
124 		printf("%s\n", string);
125 
126 	mac_free(label);
127 	free(string);
128 	exit(EX_OK);
129 }
130