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  "$FreeBSD$";
37#endif /* not lint */
38
39#include <stdlib.h>
40#include <rpc/rpc.h>
41#include <sys/socket.h>
42#include <signal.h>
43#include <syslog.h>
44#include <rpcsvc/rnusers.h>
45
46extern void rusers_service(struct svc_req *, SVCXPRT *);
47
48int from_inetd = 1;
49
50static void
51cleanup(int sig __unused)
52{
53	(void) rpcb_unset(RUSERSPROG, RUSERSVERS_IDLE, NULL);
54	(void) rpcb_unset(RUSERSPROG, RUSERSVERS_ORIG, NULL);
55	exit(0);
56}
57
58int
59main(int argc __unused, char *argv[] __unused)
60{
61	SVCXPRT *transp = NULL; /* Keep compiler happy. */
62	int ok;
63	struct sockaddr_storage from;
64	socklen_t fromlen;
65
66	/*
67	 * See if inetd started us
68	 */
69	fromlen = sizeof(from);
70	if (getsockname(0, (struct sockaddr *)&from, &fromlen) < 0) {
71		from_inetd = 0;
72	}
73
74	if (!from_inetd) {
75		daemon(0, 0);
76
77		(void) rpcb_unset(RUSERSPROG, RUSERSVERS_IDLE, NULL);
78		(void) rpcb_unset(RUSERSPROG, RUSERSVERS_ORIG, NULL);
79
80		(void) signal(SIGINT, cleanup);
81		(void) signal(SIGTERM, cleanup);
82		(void) signal(SIGHUP, cleanup);
83	}
84
85	openlog("rpc.rusersd", LOG_CONS|LOG_PID, LOG_DAEMON);
86
87	if (from_inetd) {
88		transp = svc_tli_create(0, NULL, NULL, 0, 0);
89		if (transp == NULL) {
90			syslog(LOG_ERR, "cannot create udp service.");
91			exit(1);
92		}
93		ok = svc_reg(transp, RUSERSPROG, RUSERSVERS_IDLE,
94			     rusers_service, NULL);
95	} else
96		ok = svc_create(rusers_service,
97				RUSERSPROG, RUSERSVERS_IDLE, "udp");
98	if (!ok) {
99		syslog(LOG_ERR, "unable to register (RUSERSPROG, RUSERSVERS_IDLE, %s)", (!from_inetd)?"udp":"(inetd)");
100		exit(1);
101	}
102	if (from_inetd)
103		ok = svc_reg(transp, RUSERSPROG, RUSERSVERS_ORIG,
104			     rusers_service, NULL);
105	else
106		ok = svc_create(rusers_service,
107				RUSERSPROG, RUSERSVERS_ORIG, "udp");
108	if (!ok) {
109		syslog(LOG_ERR, "unable to register (RUSERSPROG, RUSERSVERS_ORIG, %s)", (!from_inetd)?"udp":"(inetd)");
110		exit(1);
111	}
112
113	svc_run();
114	syslog(LOG_ERR, "svc_run returned");
115	exit(1);
116}
117