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/* NBD client library in userspace
* Copyright Red Hat
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/* Test interop with nbdkit or qemu-nbd, and systemd socket activation. */
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <inttypes.h>
#include <unistd.h>
#include <libnbd.h>
#define SIZE 1048576
int
main (int argc, char *argv[])
{
struct nbd_handle *nbd;
char tmpfile[] = "/tmp/nbdXXXXXX";
int fd;
int64_t actual_size;
char buf[512];
int r = -1;
/* Create a large sparse temporary file. */
fd = mkstemp (tmpfile);
if (fd == -1 ||
ftruncate (fd, SIZE) == -1 ||
close (fd) == -1) {
perror (tmpfile);
goto out;
}
nbd = nbd_create ();
if (nbd == NULL) {
fprintf (stderr, "%s\n", nbd_get_error ());
goto out;
}
char *args[] = { SERVER, SERVER_PARAMS, NULL };
if (nbd_connect_systemd_socket_activation (nbd, args) == -1) {
fprintf (stderr, "%s\n", nbd_get_error ());
goto out;
}
actual_size = nbd_get_size (nbd);
if (actual_size == -1) {
fprintf (stderr, "%s\n", nbd_get_error ());
goto out;
}
if (actual_size != SIZE) {
fprintf (stderr, "%s: actual size %" PRIi64 " <> expected size %d",
argv[0], actual_size, SIZE);
goto out;
}
if (nbd_pread (nbd, buf, sizeof buf, 0, 0) == -1) {
fprintf (stderr, "%s\n", nbd_get_error ());
goto out;
}
if (nbd_shutdown (nbd, 0) == -1) {
fprintf (stderr, "%s\n", nbd_get_error ());
goto out;
}
nbd_close (nbd);
r = 0;
out:
unlink (tmpfile);
exit (r == 0 ? EXIT_SUCCESS : EXIT_FAILURE);
}
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