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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
*/
/* Simple end-to-end test of flags. */
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <libnbd.h>
#include "requires.h"
#ifndef value
#define value true
#endif
#define native 2
#define none 3
/* https://stackoverflow.com/a/1489985 */
#define XNBD_FLAG_FUNCTION(f) nbd_ ## f
#define NBD_FLAG_FUNCTION(f) XNBD_FLAG_FUNCTION (f)
#define XSTR(x) #x
#define STR(x) XSTR (x)
int
main (int argc, char *argv[])
{
struct nbd_handle *nbd;
int r, expected;
char plugin_path[256];
char key_param[32];
#ifdef requirement
requires (NBDKIT " --dump-plugin sh | grep -q " requirement);
#endif
snprintf (plugin_path, sizeof plugin_path, "%s/eflags-plugin.sh",
getenv ("srcdir") ? : ".");
snprintf (key_param, sizeof key_param, "key=%s", STR (flag));
char *args[] =
{ NBDKIT, "-s", "--exit-with-parent", "-v",
#ifdef filter
filter,
#endif
"sh", plugin_path,
key_param,
#if value == true
"print=", "rc=0",
#elif value == false
"print=", "rc=3",
#elif value == native
"print=native", "rc=0",
#elif value == none
"print=none", "rc=0",
#else
#error "unknown value"
#endif
NULL };
nbd = nbd_create ();
if (nbd == NULL) {
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
#ifdef no_sr
if (nbd_set_request_structured_replies (nbd, false) == -1) {
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
#endif
if (nbd_connect_command (nbd, args) == -1) {
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
#if value == true
expected = 1;
#elif value == false
expected = 0;
#elif value == native
/* can_fua=native should return true */
expected = 1;
#elif value == none
/* can_fua=none should return false */
expected = 0;
#else
#error "unknown value"
#endif
if ((r = NBD_FLAG_FUNCTION (flag) (nbd)) == -1) {
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
if (r != expected) {
fprintf (stderr, "%s: test failed: unexpected %s flag: "
"actual=%d, expected=%d\n",
argv[0], STR (flag), r, expected);
exit (EXIT_FAILURE);
}
if (nbd_shutdown (nbd, 0) == -1) {
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
nbd_close (nbd);
exit (EXIT_SUCCESS);
}
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