blob: 95a1d578f9c62bc3810aad825e257a49b74eaccf [file] [log] [blame]
#include <stdio.h>
#include <errno.h>
#include <sys/shm.h>
int
main(void)
{
int rc, id;
struct shmid_ds ds;
id = shmget(IPC_PRIVATE, 1, 0600);
if (id < 0)
return 77;
printf("shmget\\(IPC_PRIVATE, 1, 0600\\) += %d\n", id);
if (shmctl(id, IPC_STAT, &ds))
goto fail;
printf("shmctl\\(%d, (IPC_64\\|)?IPC_STAT, %p\\) += 0\n", id, &ds);
int max = shmctl(0, SHM_INFO, &ds);
if (max < 0)
goto fail;
printf("shmctl\\(0, (IPC_64\\|)?SHM_INFO, %p\\) += %d\n", &ds, max);
rc = shmctl(id, SHM_STAT, &ds);
if (rc != id) {
/*
* In linux < v2.6.24-rc1 the first argument must be
* an index in the kernel's internal array.
*/
if (-1 != rc || EINVAL != errno)
goto fail;
printf("shmctl\\(%d, (IPC_64\\|)?SHM_STAT, %p\\) += -1 EINVAL \\(Invalid argument\\)\n", id, &ds);
} else {
printf("shmctl\\(%d, (IPC_64\\|)?SHM_STAT, %p\\) += %d\n", id, &ds, id);
}
rc = 0;
done:
if (shmctl(id, IPC_RMID, NULL) < 0)
return 1;
printf("shmctl\\(%d, (IPC_64\\|)?IPC_RMID, NULL\\) += 0\n", id);
return rc;
fail:
rc = 1;
goto done;
}