xref: /freebsd/lib/libc/posix1e/mac_get.c (revision d97fcfce273eb3bc3984441c9e4bcbd5231fb1f5)
1d97fcfceSRobert Watson /*
2d97fcfceSRobert Watson  * Copyright (c) 1999, 2000, 2001, 2002 Robert N. M. Watson
3d97fcfceSRobert Watson  * All rights reserved.
4d97fcfceSRobert Watson  *
5d97fcfceSRobert Watson  * This software was developed by Robert Watson for the TrustedBSD Project.
6d97fcfceSRobert Watson  *
7d97fcfceSRobert Watson  * Redistribution and use in source and binary forms, with or without
8d97fcfceSRobert Watson  * modification, are permitted provided that the following conditions
9d97fcfceSRobert Watson  * are met:
10d97fcfceSRobert Watson  * 1. Redistributions of source code must retain the above copyright
11d97fcfceSRobert Watson  *    notice, this list of conditions and the following disclaimer.
12d97fcfceSRobert Watson  * 2. Redistributions in binary form must reproduce the above copyright
13d97fcfceSRobert Watson  *    notice, this list of conditions and the following disclaimer in the
14d97fcfceSRobert Watson  *    documentation and/or other materials provided with the distribution.
15d97fcfceSRobert Watson  * 3. The names of the authors may not be used to endorse or promote
16d97fcfceSRobert Watson  *    products derived from this software without specific prior written
17d97fcfceSRobert Watson  *    permission.
18d97fcfceSRobert Watson  *
19d97fcfceSRobert Watson  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20d97fcfceSRobert Watson  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21d97fcfceSRobert Watson  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22d97fcfceSRobert Watson  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23d97fcfceSRobert Watson  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24d97fcfceSRobert Watson  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25d97fcfceSRobert Watson  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26d97fcfceSRobert Watson  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27d97fcfceSRobert Watson  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28d97fcfceSRobert Watson  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29d97fcfceSRobert Watson  * SUCH DAMAGE.
30d97fcfceSRobert Watson  *
31d97fcfceSRobert Watson  * $FreeBSD$
32d97fcfceSRobert Watson  */
33d97fcfceSRobert Watson 
34d97fcfceSRobert Watson #include <sys/types.h>
35d97fcfceSRobert Watson #include <sys/mac.h>
36d97fcfceSRobert Watson 
37d97fcfceSRobert Watson #include <errno.h>
38d97fcfceSRobert Watson #include <stdlib.h>
39d97fcfceSRobert Watson 
40d97fcfceSRobert Watson mac_t
41d97fcfceSRobert Watson mac_get_file(const char *path_p)
42d97fcfceSRobert Watson {
43d97fcfceSRobert Watson 	struct mac *label;
44d97fcfceSRobert Watson 	int error;
45d97fcfceSRobert Watson 
46d97fcfceSRobert Watson 	label = (mac_t) malloc(sizeof(*label));
47d97fcfceSRobert Watson 	if (label == NULL) {
48d97fcfceSRobert Watson 		errno = ENOMEM;
49d97fcfceSRobert Watson 		return (NULL);
50d97fcfceSRobert Watson 	}
51d97fcfceSRobert Watson 
52d97fcfceSRobert Watson 	error = __mac_get_file(path_p, label);
53d97fcfceSRobert Watson 	if (error) {
54d97fcfceSRobert Watson 		mac_free(label);
55d97fcfceSRobert Watson 		return (NULL);
56d97fcfceSRobert Watson 	}
57d97fcfceSRobert Watson 
58d97fcfceSRobert Watson 	return (label);
59d97fcfceSRobert Watson }
60d97fcfceSRobert Watson 
61d97fcfceSRobert Watson mac_t
62d97fcfceSRobert Watson mac_get_fd(int fd)
63d97fcfceSRobert Watson {
64d97fcfceSRobert Watson 	struct mac *label;
65d97fcfceSRobert Watson 	int error;
66d97fcfceSRobert Watson 
67d97fcfceSRobert Watson 	label = (mac_t) malloc(sizeof(*label));
68d97fcfceSRobert Watson 	if (label == NULL) {
69d97fcfceSRobert Watson 		errno = ENOMEM;
70d97fcfceSRobert Watson 		return (NULL);
71d97fcfceSRobert Watson 	}
72d97fcfceSRobert Watson 
73d97fcfceSRobert Watson 	error = __mac_get_fd(fd, label);
74d97fcfceSRobert Watson 	if (error) {
75d97fcfceSRobert Watson 		mac_free(label);
76d97fcfceSRobert Watson 		return (NULL);
77d97fcfceSRobert Watson 	}
78d97fcfceSRobert Watson 
79d97fcfceSRobert Watson 	return (label);
80d97fcfceSRobert Watson }
81d97fcfceSRobert Watson 
82d97fcfceSRobert Watson mac_t
83d97fcfceSRobert Watson mac_get_proc()
84d97fcfceSRobert Watson {
85d97fcfceSRobert Watson 	struct mac *label;
86d97fcfceSRobert Watson 	int error;
87d97fcfceSRobert Watson 
88d97fcfceSRobert Watson 	label = (mac_t) malloc(sizeof(*label));
89d97fcfceSRobert Watson 	if (label == NULL) {
90d97fcfceSRobert Watson 		errno = ENOMEM;
91d97fcfceSRobert Watson 		return (NULL);
92d97fcfceSRobert Watson 	}
93d97fcfceSRobert Watson 
94d97fcfceSRobert Watson 	error = __mac_get_proc(label);
95d97fcfceSRobert Watson 	if (error) {
96d97fcfceSRobert Watson 		mac_free(label);
97d97fcfceSRobert Watson 		return (NULL);
98d97fcfceSRobert Watson 	}
99d97fcfceSRobert Watson 
100d97fcfceSRobert Watson 	return (label);
101d97fcfceSRobert Watson }
102