platform_system_core/toolbox/load_policy.c

50 lines
1.1 KiB
C

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <errno.h>
#include <selinux/selinux.h>
int load_policy_main(int argc, char **argv)
{
int fd, rc, vers;
struct stat sb;
void *map;
const char *path;
if (argc != 2) {
fprintf(stderr, "usage: %s policy-file\n", argv[0]);
exit(1);
}
path = argv[1];
fd = open(path, O_RDONLY);
if (fd < 0) {
fprintf(stderr, "Could not open %s: %s\n", path, strerror(errno));
exit(2);
}
if (fstat(fd, &sb) < 0) {
fprintf(stderr, "Could not stat %s: %s\n", path, strerror(errno));
exit(3);
}
map = mmap(NULL, sb.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
if (map == MAP_FAILED) {
fprintf(stderr, "Could not mmap %s: %s\n", path, strerror(errno));
exit(4);
}
rc = security_load_policy(map, sb.st_size);
if (rc < 0) {
fprintf(stderr, "Could not load %s: %s\n", path, strerror(errno));
exit(5);
}
munmap(map, sb.st_size);
close(fd);
exit(0);
}