SHM test program: please run

[Ignatios Souvatzis <ignatios%cs.uni-bonn.de@localhost>]

Please run this program and tell me what happens.
(Extract the 3 files: shm1.c, shm2.c, Makefile; then "make test")

Regards,
        Ignatios
-- 
 * Progress (n.): The process through which Usenet has evolved from
   smart people in front of dumb terminals to dumb people in front of
   smart terminals.  -- obs%burnout.demon.co.uk@localhost (obscurity)

CC=gcc
COPTS=-O2

all: shm1 shm2

clean: ; rm shm1 shm2

test: all
        ./shm1
        ./shm2

#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/shm.h>

#include <stdio.h>



int
main(int argc, char *argv[]) {
        int myid;
        char *buf;
        void *p;

        myid = shmget((key_t)0x4712, 80, IPC_CREAT| 0700);
        if (myid == -1) {
                perror("shmget");
                exit(1);
        }

        printf("Returned %d\n", myid);

        p = shmat(myid, 0, 0);
        if (p == (void *)-1) {
                perror("shmat");
                exit(1);
        }
        printf("Returned 0x%08x\n", p);
        strncpy((char *)p,
            "The quick brown fox jumps over the lazy dogs' back", 80);

}

#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/shm.h>

#include <stdio.h>



int
main(int argc, char *argv[]) {
        int myid, rc;
        void *p;

        myid = shmget((key_t)0x4712, 80,  0700);
        if (myid == -1) {
                perror("shmget");
                exit(1);
        }

        printf("Returned %d\n", myid);
        p = shmat(myid, 0, 0);
        printf("%-80s\n", p);

        rc = shmctl(myid, IPC_RMID, 0);
        if (rc == -1) {
                perror("shmctl");
                exit(1);
        }
}