rstatd.c revision 141918 
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. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *	This product includes software developed by the University of
16 *	California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#ifndef lint
35static const char rcsid[] =
36  "$FreeBSD: head/libexec/rpc.rstatd/rstatd.c 141918 2005-02-14 17:42:58Z stefanf $";
37#endif /* not lint */
38
39#include <stdlib.h>
40#include <rpc/rpc.h>
41#include <signal.h>
42#include <syslog.h>
43#include <rpcsvc/rstat.h>
44
45extern void rstat_service(struct svc_req *, SVCXPRT *);
46
47int from_inetd = 1;     /* started from inetd ? */
48int closedown = 20;	/* how long to wait before going dormant */
49
50void
51cleanup(int sig __unused)
52{
53        (void) rpcb_unset(RSTATPROG, RSTATVERS_TIME, NULL);
54        (void) rpcb_unset(RSTATPROG, RSTATVERS_SWTCH, NULL);
55        (void) rpcb_unset(RSTATPROG, RSTATVERS_ORIG, NULL);
56        exit(0);
57}
58
59int
60main(int argc, char *argv[])
61{
62	SVCXPRT *transp;
63	int ok;
64	struct sockaddr_storage from;
65	socklen_t fromlen;
66
67        if (argc == 2)
68                closedown = atoi(argv[1]);
69        if (closedown <= 0)
70                closedown = 20;
71
72        /*
73         * See if inetd started us
74         */
75	fromlen = sizeof(from);
76        if (getsockname(0, (struct sockaddr *)&from, &fromlen) < 0) {
77                from_inetd = 0;
78        }
79
80        if (!from_inetd) {
81                daemon(0, 0);
82
83                (void)rpcb_unset(RSTATPROG, RSTATVERS_TIME, NULL);
84                (void)rpcb_unset(RSTATPROG, RSTATVERS_SWTCH, NULL);
85                (void)rpcb_unset(RSTATPROG, RSTATVERS_ORIG, NULL);
86
87		(void) signal(SIGINT, cleanup);
88		(void) signal(SIGTERM, cleanup);
89		(void) signal(SIGHUP, cleanup);
90        }
91
92        openlog("rpc.rstatd", LOG_CONS|LOG_PID, LOG_DAEMON);
93
94	if (from_inetd) {
95		transp = svc_tli_create(0, NULL, NULL, 0, 0);
96		if (transp == NULL) {
97			syslog(LOG_ERR, "cannot create udp service.");
98			exit(1);
99		}
100		ok = svc_reg(transp, RSTATPROG, RSTATVERS_TIME,
101			     rstat_service, NULL);
102	} else
103		ok = svc_create(rstat_service,
104				RSTATPROG, RSTATVERS_TIME, "udp");
105	if (!ok) {
106		syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_TIME, %s)", (!from_inetd)?"udp":"(inetd)");
107  		exit(1);
108	}
109	if (from_inetd)
110		ok = svc_reg(transp, RSTATPROG, RSTATVERS_SWTCH,
111			     rstat_service, NULL);
112	else
113		ok = svc_create(rstat_service,
114				RSTATPROG, RSTATVERS_SWTCH, "udp");
115	if (!ok) {
116		syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_SWTCH, %s)", (!from_inetd)?"udp":"(inetd)");
117  		exit(1);
118	}
119	if (from_inetd)
120		ok = svc_reg(transp, RSTATPROG, RSTATVERS_ORIG,
121			     rstat_service, NULL);
122	else
123		ok = svc_create(rstat_service,
124				RSTATPROG, RSTATVERS_ORIG, "udp");
125	if (!ok) {
126		syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_ORIG, %s)", (!from_inetd)?"udp":"(inetd)");
127  		exit(1);
128	}
129
130        svc_run();
131	syslog(LOG_ERR, "svc_run returned");
132	exit(1);
133}
134