int
main (int argc, char *argv[])
{
guestfs_h *g = guestfs_create ();
/* Call some non-daemon functions that have a String parameter, but
* setting that parameter to NULL. Previously this would cause a
* segfault inside libguestfs. After this bug was fixed, this
* turned into an error message.
*/
assert (guestfs_add_drive (g, NULL) == -1);
assert (guestfs_config (g, NULL, NULL) == -1);
/* This optional argument must not be NULL. */
assert (guestfs_add_drive_opts (g, "/dev/null",
GUESTFS_ADD_DRIVE_OPTS_FORMAT, NULL,
-1) == -1);
/* These can be safely set to NULL, should be no error. */
assert (guestfs_set_path (g, NULL) == 0);
assert (guestfs_set_append (g, NULL) == 0);
assert (guestfs_set_qemu (g, NULL) == 0);
guestfs_close (g);
exit (EXIT_SUCCESS);
}
static void *
start_thread (void *vi)
{
guestfs_h *g;
int r, thread_id = *(int *)vi;
const char *error;
g = guestfs_create ();
if (g == NULL) {
perror ("guestfs_create");
*(int *)vi = -1;
pthread_exit (vi);
}
if (guestfs_add_drive_opts (g, "/dev/null",
GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
GUESTFS_ADD_DRIVE_OPTS_READONLY, 1,
-1) == -1) {
*(int *)vi = -1;
pthread_exit (vi);
}
/* Fake out qemu. */
if (guestfs_set_qemu (g, "/bin/true") == -1) {
*(int *)vi = -1;
pthread_exit (vi);
}
/* Wait for the other threads to finish starting up. */
r = pthread_barrier_wait (&barrier);
if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) {
fprintf (stderr, "pthread_barrier_wait: [thread %d]: %s\n",
thread_id, strerror (r));
*(int *)vi = -1;
pthread_exit (vi);
}
/* Launch the handle. Because of the faked out qemu, we expect this
* will fail with "child process died unexpectedly". We are
* interested in other failures.
*/
guestfs_push_error_handler (g, NULL, NULL);
r = guestfs_launch (g);
error = guestfs_last_error (g);
if (r == 0) { /* This should NOT happen. */
fprintf (stderr, "rhbz790721: [thread %d]: "
"strangeness in test: expected launch to fail, but it didn't!\n",
thread_id);
*(int *)vi = -1;
pthread_exit (vi);
}
if (error == NULL) { /* This also should NOT happen. */
fprintf (stderr, "rhbz790721: [thread %d]: "
"strangeness in test: no error message!\n",
thread_id);
*(int *)vi = -1;
pthread_exit (vi);
}
/* If this happens, it indicates a bug/race in the appliance
* building code which is what this regression test is designed to
* spot.
*/
if (STRNEQ (error, "child process died unexpectedly")) {
fprintf (stderr, "rhbz790721: [thread %d]: error: %s\n", thread_id, error);
*(int *)vi = -1;
pthread_exit (vi);
}
guestfs_pop_error_handler (g);
/* Close the handle. */
guestfs_close (g);
*(int *)vi = 0;
pthread_exit (vi);
}
