1#include <unistd.h>
2#include <sys/types.h>
3#include <stdio.h>
4#include <stdlib.h>
5#include <string.h>
6#include <errno.h>
7#include <selinux/selinux.h>
8
9int main(int argc, char **argv)
10{
11	char *buf;
12	security_class_t tclass;
13	const char *objname;
14	int ret;
15
16	if (argc != 4 && argc != 5) {
17		fprintf(stderr, "usage:  %s scontext tcontext tclass [objname]\n",
18			argv[0]);
19		exit(1);
20	}
21
22	if (security_check_context(argv[1])) {
23		fprintf(stderr, "%s:  invalid source context '%s'\n", argv[0], argv[1]);
24		exit(4);
25	}
26
27	if (security_check_context(argv[2])) {
28		fprintf(stderr, "%s:  invalid target context '%s'\n", argv[0], argv[2]);
29		exit(5);
30	}
31
32	tclass = string_to_security_class(argv[3]);
33	if (!tclass) {
34		fprintf(stderr, "%s:  invalid class '%s'\n", argv[0], argv[3]);
35		exit(2);
36	}
37
38	objname = (argc == 5) ? argv[4] : NULL;
39
40	ret = security_compute_create_name(argv[1], argv[2], tclass, objname, &buf);
41	if (ret < 0) {
42		fprintf(stderr, "%s:  security_compute_create failed:  %s\n",
43			argv[0], strerror(errno));
44		exit(3);
45	}
46
47	printf("%s\n", buf);
48	freecon(buf);
49	exit(EXIT_SUCCESS);
50}
51