xref: /freebsd/usr.sbin/getfmac/getfmac.c (revision c66ec88fed842fbaad62c30d510644ceb7bd2d71)
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 NAI Labs, the
8  * Security Research Division of Network Associates, Inc. under
9  * DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA
10  * 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,
56 	    "getfmac [-h] [-l list,of,labels] [file1] [file2 ...]\n");
57 	exit (EX_USAGE);
58 }
59 
60 int
61 main(int argc, char *argv[])
62 {
63 	char *labellist, *string;
64 	mac_t label;
65 	int ch, hflag;
66 	int error, i;
67 
68 	labellist = NULL;
69 	hflag = 0;
70 	while ((ch = getopt(argc, argv, "hl:")) != -1) {
71 		switch (ch) {
72 		case 'h':
73 			hflag = 1;
74 			break;
75 		case 'l':
76 			if (labellist != NULL)
77 				usage();
78 			labellist = argv[optind - 1];
79 			break;
80 		default:
81 			usage();
82 		}
83 
84 	}
85 
86 	for (i = optind; i < argc; i++) {
87 		if (labellist != NULL)
88 			error = mac_prepare(&label, labellist);
89 		else
90 			error = mac_prepare_file_label(&label);
91 
92 		if (error != 0) {
93 			perror("mac_prepare");
94 			return (-1);
95 		}
96 
97 		if (hflag)
98 			error = mac_get_link(argv[i], label);
99 		else
100 			error = mac_get_file(argv[i], label);
101 		if (error) {
102 			perror(argv[i]);
103 			mac_free(label);
104 			continue;
105 		}
106 
107 		error = mac_to_text(label, &string);
108 		if (error != 0)
109 			perror("mac_to_text");
110 		else {
111 			printf("%s: %s\n", argv[i], string);
112 			free(string);
113 		}
114 		mac_free(label);
115 	}
116 
117 	exit(EX_OK);
118 }
119