msglib.c

int intRcv(int qid, int type){
	ssize_t insize;
	struct intmsgbuf out;
	insize = msgrcv(qid, &out, sizeof(int), type, RCV_MSG_FLAG);
	if(insize == -1){
		syserr("intrcv");	
	}
	return out.mtext[0];
}