root/test/testcases/posixipc/create_excl_existing_sem/create_excl_existing_sem.c
#include <common.h>

int
main(void) {
        int retval = 0;
        sem_t *id;

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

        retval = sem_open_should_fail(TEST_PATH, O_CREAT | O_EXCL, 0777, 1, EEXIST);

        sem_unlink(TEST_PATH);

        return retval;
}