rstatd.c revision 90336 
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 90336 2002-02-07 05:24:53Z imp $";
37#endif /* not lint */
38
39#include <stdlib.h>
40#include <rpc/rpc.h>
41#include <signal.h>
42#include <syslog.h>
43#include <rpc/pmap_clnt.h>
44#include <rpcsvc/rstat.h>
45
46extern void rstat_service(struct svc_req *, SVCXPRT *);
47
48int from_inetd = 1;     /* started from inetd ? */
49int closedown = 20;	/* how long to wait before going dormant */
50
51void
52cleanup(int sig __unused)
53{
54        (void) pmap_unset(RSTATPROG, RSTATVERS_TIME);
55        (void) pmap_unset(RSTATPROG, RSTATVERS_SWTCH);
56        (void) pmap_unset(RSTATPROG, RSTATVERS_ORIG);
57        exit(0);
58}
59
60int
61main(int argc, char *argv[])
62{
63	SVCXPRT *transp;
64        int sock = 0;
65        int proto = 0;
66	struct sockaddr_in from;
67	int fromlen;
68
69        if (argc == 2)
70                closedown = atoi(argv[1]);
71        if (closedown <= 0)
72                closedown = 20;
73
74        /*
75         * See if inetd started us
76         */
77	fromlen = sizeof(from);
78        if (getsockname(0, (struct sockaddr *)&from, &fromlen) < 0) {
79                from_inetd = 0;
80                sock = RPC_ANYSOCK;
81                proto = IPPROTO_UDP;
82        }
83
84        if (!from_inetd) {
85                daemon(0, 0);
86
87                (void)pmap_unset(RSTATPROG, RSTATVERS_TIME);
88                (void)pmap_unset(RSTATPROG, RSTATVERS_SWTCH);
89                (void)pmap_unset(RSTATPROG, RSTATVERS_ORIG);
90
91		(void) signal(SIGINT, cleanup);
92		(void) signal(SIGTERM, cleanup);
93		(void) signal(SIGHUP, cleanup);
94        }
95
96        openlog("rpc.rstatd", LOG_CONS|LOG_PID, LOG_DAEMON);
97
98	transp = svcudp_create(sock);
99	if (transp == NULL) {
100		syslog(LOG_ERR, "cannot create udp service");
101		exit(1);
102	}
103	if (!svc_register(transp, RSTATPROG, RSTATVERS_TIME, rstat_service, proto)) {
104		syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_TIME, %s)", proto?"udp":"(inetd)");
105		exit(1);
106	}
107	if (!svc_register(transp, RSTATPROG, RSTATVERS_SWTCH, rstat_service, proto)) {
108		syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_SWTCH, %s)", proto?"udp":"(inetd)");
109		exit(1);
110	}
111	if (!svc_register(transp, RSTATPROG, RSTATVERS_ORIG, rstat_service, proto)) {
112		syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_ORIG, %s)", proto?"udp":"(inetd)");
113		exit(1);
114	}
115
116        svc_run();
117	syslog(LOG_ERR, "svc_run returned");
118	exit(1);
119}
120