1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2008 Isilon Inc http://www.isilon.com/
5  * Authors: Doug Rabson <dfr@rabson.org>
6  * Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org>
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
32 
33 #include <stdio.h>
34 #include <stdlib.h>
35 #include <unistd.h>
36 
37 #include <rpc/rpc.h>
38 #include <rpcsvc/nlm_prot.h>
39 
40 int
41 main(int argc, char **argv)
42 {
43 	enum clnt_stat stat;
44 	char *hostname;
45 	nlm4_notify notify;
46 
47 	if (argc != 2) {
48 		fprintf(stderr, "Usage: clear_locks <hostname>\n");
49 		exit(1);
50 	}
51 	hostname = argv[1];
52 
53 	if (geteuid() != 0) {
54 		fprintf(stderr, "clear_locks: must be root\n");
55 		exit(1);
56 	}
57 
58 	notify.name = hostname;
59 	notify.state = 0;
60 	stat = rpc_call("localhost", NLM_PROG, NLM_VERS4, NLM4_FREE_ALL,
61 	    (xdrproc_t) xdr_nlm4_notify, (void *) &notify,
62 	    (xdrproc_t) xdr_void, NULL, NULL);
63 
64 	if (stat != RPC_SUCCESS) {
65 		clnt_perrno(stat);
66 		exit(1);
67 	}
68 	fprintf(stderr, "clear_locks: cleared locks for hostname %s\n",
69 	    hostname);
70 
71 	return (0);
72 }
73