1/*-
2 * Copyright (c) 2008 Isilon Inc http://www.isilon.com/
3 * Authors: Doug Rabson <dfr@rabson.org>
4 * Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org>
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28#include <sys/cdefs.h>
29__FBSDID("$FreeBSD: releng/10.3/usr.sbin/clear_locks/clear_locks.c 177633 2008-03-26 15:23:12Z dfr $");
30
31#include <stdio.h>
32#include <stdlib.h>
33#include <unistd.h>
34
35#include <rpc/rpc.h>
36#include <rpcsvc/nlm_prot.h>
37
38int
39main(int argc, char **argv)
40{
41	enum clnt_stat stat;
42	char *hostname;
43	nlm4_notify notify;
44
45	if (argc != 2) {
46		fprintf(stderr, "Usage: clear_locks <hostname>\n");
47		exit(1);
48	}
49	hostname = argv[1];
50
51	if (geteuid() != 0) {
52		fprintf(stderr, "clear_locks: must be root\n");
53		exit(1);
54	}
55
56	notify.name = hostname;
57	notify.state = 0;
58	stat = rpc_call("localhost", NLM_PROG, NLM_VERS4, NLM4_FREE_ALL,
59	    (xdrproc_t) xdr_nlm4_notify, (void *) &notify,
60	    (xdrproc_t) xdr_void, NULL, NULL);
61
62	if (stat != RPC_SUCCESS) {
63		clnt_perrno(stat);
64		exit(1);
65	}
66	fprintf(stderr, "clear_locks: cleared locks for hostname %s\n",
67	    hostname);
68
69	return (0);
70}
71