Stuff

#include <stdio.h>
#include <stdlib.h>
#include <sys/msg.h>
#include <string.h>
#include <errno.h>
#include "practical3.h"

int main(int argc, char** argv) {
	if (argc != 2) {
		fprintf(stderr,"Usage: %s [queue_id]\n",argv[0]);
		return -1;
	}

	int queueid = atoi(argv[1]);
	struct message_msgbuf *ourdata = malloc(sizeof(message_msgbuf));

	printf("Reading queue ID: %d\n",queueid);

	if (msgrcv(queueid, ourdata, sizeof(message_msgbuf), 0, 0) == -1) {
		fprintf(stderr,"Error encountered: %s\n",strerror(errno));
                free(outdata);
		return 1;
	} else {
		printf("\tMessage type: %d\n\tMessage text: %s\n",ourdata->mtype, ourdata->message);
                free(outdata);
		return 1;
	}
}