/*
** semrm.cpp -- removes a semaphore
*/

#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/sem.h>

int main(void)
{
	key_t key;
	int semid;

	if ((key = ftok(".", 'J')) == -1) {
		perror("ftok");
		exit(1);
	}

	/* grab the semaphore set created by seminit.c: */
	if ((semid = semget(key, 1, 0)) == -1) {
		perror("semget");
		exit(1);
	}

	/* remove it: */
	if (semctl(semid, 0, IPC_RMID) == -1) {
		perror("semctl");
		exit(1);
	}

	return 0;
}