tests: add IPC_STAT to ipc tests, workaround limitiations of old kernels
* tests/ipc_msg.c: Include <errno.h>.
(main): Add a test call with IPC_STAT, handle old kernels MSG_STAT behaviour.
* tests/ipc_sem.c: Include <errno.h>.
(main): Add a test call with IPC_STAT, handle old kernels SEM_STAT behaviour.
* tests/ipc_shm.c: Include <errno.h>.
(main): Add a test call with IPC_STAT, handle old kernels SHM_STAT behaviour.
diff --git a/tests/ipc_msg.c b/tests/ipc_msg.c
index 4888d3a..1917086 100644
--- a/tests/ipc_msg.c
+++ b/tests/ipc_msg.c
@@ -1,31 +1,48 @@
#include <stdio.h>
+#include <errno.h>
#include <sys/msg.h>
int
main(void)
{
- int id = msgget(IPC_PRIVATE, 0600);
+ int rc, id;
+ struct msqid_ds ds;
+
+ id = msgget(IPC_PRIVATE, 0600);
if (id < 0)
return 77;
printf("msgget\\(IPC_PRIVATE, 0600\\) += %d\n", id);
- int rc = 1;
+ if (msgctl(id, IPC_STAT, &ds))
+ goto fail;
+ printf("msgctl\\(%d, IPC_STAT, %p\\) += 0\n", id, &ds);
- struct msqid_ds ds;
int max = msgctl(0, MSG_INFO, &ds);
if (max < 0)
goto fail;
printf("msgctl\\(0, MSG_INFO, %p\\) += %d\n", &ds, max);
- if (msgctl(id, MSG_STAT, &ds) != id)
- goto fail;
- printf("msgctl\\(%d, MSG_STAT, %p\\) += %d\n", id, &ds, id);
+ rc = msgctl(id, MSG_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("msgctl\\(%d, MSG_STAT, %p\\) += -1 EINVAL \\(Invalid argument\\)\n", id, &ds);
+ } else {
+ printf("msgctl\\(%d, MSG_STAT, %p\\) += %d\n", id, &ds, id);
+ }
rc = 0;
-
-fail:
+done:
if (msgctl(id, IPC_RMID, 0) < 0)
return 1;
printf("msgctl\\(%d, IPC_RMID, 0\\) += 0\n", id);
return rc;
+
+fail:
+ rc = 1;
+ goto done;
}