1/*-
2 * Copyright (c) 1993, John Brezak
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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#ifndef lint
31static const char rcsid[] =
32  "$FreeBSD$";
33#endif /* not lint */
34
35#include <stdlib.h>
36#include <rpc/rpc.h>
37#include <signal.h>
38#include <syslog.h>
39#include <rpcsvc/rstat.h>
40
41extern void rstat_service(struct svc_req *, SVCXPRT *);
42
43int from_inetd = 1;     /* started from inetd ? */
44int closedown = 20;	/* how long to wait before going dormant */
45
46void
47cleanup(int sig __unused)
48{
49        (void) rpcb_unset(RSTATPROG, RSTATVERS_TIME, NULL);
50        (void) rpcb_unset(RSTATPROG, RSTATVERS_SWTCH, NULL);
51        (void) rpcb_unset(RSTATPROG, RSTATVERS_ORIG, NULL);
52        exit(0);
53}
54
55int
56main(int argc, char *argv[])
57{
58	SVCXPRT *transp;
59	int ok;
60	struct sockaddr_storage from;
61	socklen_t fromlen;
62
63        if (argc == 2)
64                closedown = atoi(argv[1]);
65        if (closedown <= 0)
66                closedown = 20;
67
68        /*
69         * See if inetd started us
70         */
71	fromlen = sizeof(from);
72        if (getsockname(0, (struct sockaddr *)&from, &fromlen) < 0) {
73                from_inetd = 0;
74        }
75
76        if (!from_inetd) {
77                daemon(0, 0);
78
79                (void)rpcb_unset(RSTATPROG, RSTATVERS_TIME, NULL);
80                (void)rpcb_unset(RSTATPROG, RSTATVERS_SWTCH, NULL);
81                (void)rpcb_unset(RSTATPROG, RSTATVERS_ORIG, NULL);
82
83		(void) signal(SIGINT, cleanup);
84		(void) signal(SIGTERM, cleanup);
85		(void) signal(SIGHUP, cleanup);
86        }
87
88        openlog("rpc.rstatd", LOG_CONS|LOG_PID, LOG_DAEMON);
89
90	if (from_inetd) {
91		transp = svc_tli_create(0, NULL, NULL, 0, 0);
92		if (transp == NULL) {
93			syslog(LOG_ERR, "cannot create udp service.");
94			exit(1);
95		}
96		ok = svc_reg(transp, RSTATPROG, RSTATVERS_TIME,
97			     rstat_service, NULL);
98	} else
99		ok = svc_create(rstat_service,
100				RSTATPROG, RSTATVERS_TIME, "udp");
101	if (!ok) {
102		syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_TIME, %s)", (!from_inetd)?"udp":"(inetd)");
103  		exit(1);
104	}
105	if (from_inetd)
106		ok = svc_reg(transp, RSTATPROG, RSTATVERS_SWTCH,
107			     rstat_service, NULL);
108	else
109		ok = svc_create(rstat_service,
110				RSTATPROG, RSTATVERS_SWTCH, "udp");
111	if (!ok) {
112		syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_SWTCH, %s)", (!from_inetd)?"udp":"(inetd)");
113  		exit(1);
114	}
115	if (from_inetd)
116		ok = svc_reg(transp, RSTATPROG, RSTATVERS_ORIG,
117			     rstat_service, NULL);
118	else
119		ok = svc_create(rstat_service,
120				RSTATPROG, RSTATVERS_ORIG, "udp");
121	if (!ok) {
122		syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_ORIG, %s)", (!from_inetd)?"udp":"(inetd)");
123  		exit(1);
124	}
125
126        svc_run();
127	syslog(LOG_ERR, "svc_run returned");
128	exit(1);
129}
130