1#include <unistd.h>
2#include <sys/types.h>
3#include <fcntl.h>
4#include <stdlib.h>
5#include <errno.h>
6#include <string.h>
7#include <stdio.h>
8#include "selinux_internal.h"
9#include "policy.h"
10#include <limits.h>
11
12int security_check_context_raw(const char * con)
13{
14	char path[PATH_MAX];
15	int fd, ret;
16
17	if (!selinux_mnt) {
18		errno = ENOENT;
19		return -1;
20	}
21
22	snprintf(path, sizeof path, "%s/context", selinux_mnt);
23	fd = open(path, O_RDWR | O_CLOEXEC);
24	if (fd < 0)
25		return -1;
26
27	ret = write(fd, con, strlen(con) + 1);
28	close(fd);
29	if (ret < 0)
30		return -1;
31	return 0;
32}
33
34
35int security_check_context(const char * con)
36{
37	int ret;
38	char * rcon;
39
40	if (selinux_trans_to_raw_context(con, &rcon))
41		return -1;
42
43	ret = security_check_context_raw(rcon);
44
45	freecon(rcon);
46
47	return ret;
48}
49
50