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
main(int argc,char ** argv)9 int main(int argc, char **argv)
10 {
11 char *buf;
12 security_class_t tclass;
13 int ret;
14
15 if (argc != 4) {
16 fprintf(stderr, "usage: %s scontext tcontext tclass\n",
17 argv[0]);
18 exit(1);
19 }
20
21 if (security_check_context(argv[1])) {
22 fprintf(stderr, "%s: invalid source context '%s'\n", argv[0], argv[1]);
23 exit(4);
24 }
25
26 if (security_check_context(argv[2])) {
27 fprintf(stderr, "%s: invalid target context '%s'\n", argv[0], argv[2]);
28 exit(5);
29 }
30
31 tclass = string_to_security_class(argv[3]);
32 if (!tclass) {
33 fprintf(stderr, "%s: invalid class '%s'\n", argv[0], argv[3]);
34 exit(2);
35 }
36
37 ret = security_compute_relabel(argv[1], argv[2], tclass, &buf);
38 if (ret < 0) {
39 fprintf(stderr, "%s: security_compute_relabel failed: %s\n",
40 argv[0], strerror(errno));
41 exit(3);
42 }
43
44 printf("%s\n", buf);
45 freecon(buf);
46 exit(EXIT_SUCCESS);
47 }
48