posixipc/file_test/file_test.c

#include <common.h>

int
main(void) {
          struct stat sb;
          sem_t *id;
          int error;

          id = sem_open(TEST_PATH, O_CREAT, 0777, 0);
          if (id == SEM_FAILED) {
                    perror("sem_open");
                    return 1;
          }

          error = stat("/var/run/sem", &sb);
          if (error) {
                    perror("stat");
                    return 1;
          }
          if ((sb.st_mode & ALLPERMS) != (S_IRWXU|S_IRWXG|S_IRWXO|S_ISTXT)) {
                    fprintf(stderr, "semaphore dir has incorrect mode: 0%o\n",
                               (sb.st_mode & ALLPERMS));
                    return 1;
          }

          sem_close(id);
          return 0;
}