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: stable/11/usr.sbin/getpmac/getpmac.c 330449 2018-03-05 07:26:05Z eadler $
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
51static void
52usage(void)
53{
54
55	fprintf(stderr, "getpmac [-l list,of,labels] [-p pid]\n");
56	exit (EX_USAGE);
57}
58
59int
60main(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