1/*	$NetBSD: rusersd.c,v 1.16 2006/05/09 20:18:07 mrg Exp $	*/
2
3/*-
4 *  Copyright (c) 1993 John Brezak
5 *  All rights reserved.
6 *
7 *  Redistribution and use in source and binary forms, with or without
8 *  modification, are permitted provided that the following conditions
9 *  are met:
10 *  1. Redistributions of source code must retain the above copyright
11 *     notice, this list of conditions and the following disclaimer.
12 *  2. Redistributions in binary form must reproduce the above copyright
13 *     notice, this list of conditions and the following disclaimer in the
14 *     documentation and/or other materials provided with the distribution.
15 *  3. The name of the author may not be used to endorse or promote products
16 *     derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
21 * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
22 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
26 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
27 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#include <sys/cdefs.h>
32#ifndef lint
33__RCSID("$NetBSD: rusersd.c,v 1.16 2006/05/09 20:18:07 mrg Exp $");
34#endif /* not lint */
35
36#include <stdio.h>
37#include <rpc/rpc.h>
38#include <sys/socket.h>
39#include <signal.h>
40#include <syslog.h>
41#include <stdlib.h>
42#include <rpcsvc/rusers.h>	/* New version */
43#include <rpcsvc/rnusers.h>	/* Old version */
44
45#include "rusers_proc.h"
46
47
48int from_inetd = 1;
49
50static void cleanup(int) __dead;
51
52static void
53/*ARGSUSED*/
54cleanup(int n)
55{
56
57	(void) rpcb_unset(RUSERSPROG, RUSERSVERS_3, NULL);
58	(void) rpcb_unset(RUSERSPROG, RUSERSVERS_IDLE, NULL);
59	exit(0);
60}
61
62int
63/*ARGSUSED*/
64main(int argc, char *argv[])
65{
66	SVCXPRT *transp;
67	struct sockaddr_storage from;
68	socklen_t fromlen;
69
70	/*
71	 * See if inetd started us
72	 */
73	fromlen = sizeof(from);
74	if (getsockname(0, (struct sockaddr *)(void *)&from, &fromlen) == -1)
75		from_inetd = 0;
76
77	if (!from_inetd) {
78		(void)daemon(0, 0);
79
80		(void)rpcb_unset(RUSERSPROG, RUSERSVERS_3, NULL);
81		(void)rpcb_unset(RUSERSPROG, RUSERSVERS_IDLE, NULL);
82
83		(void)signal(SIGINT, cleanup);
84		(void)signal(SIGTERM, cleanup);
85		(void)signal(SIGHUP, cleanup);
86	}
87
88	openlog("rpc.rusersd", LOG_PID, LOG_DAEMON);
89
90	if (from_inetd) {
91		transp = svc_dg_create(0, 0, 0);
92		if (transp == NULL) {
93			syslog(LOG_ERR, "cannot create udp service.");
94			return 1;
95		}
96		if (!svc_reg(transp, RUSERSPROG, RUSERSVERS_3, rusers_service,
97		    NULL)) {
98			syslog(LOG_ERR, "unable to register "
99			    "(RUSERSPROG, RUSERSVERS_3).");
100			return 1;
101		}
102		if (!svc_reg(transp, RUSERSPROG, RUSERSVERS_IDLE,
103		    rusers_service, NULL)) {
104			syslog(LOG_ERR, "unable to register "
105			    "(RUSERSPROG, RUSERSVERS_IDLE).");
106			return 1;
107		}
108	} else {
109		if (!svc_create(rusers_service, RUSERSPROG, RUSERSVERS_3,
110		    "udp")) {
111			syslog(LOG_ERR, "unable to create "
112			    "(RUSERSPROG, RUSERSVERS_3).");
113			return 1;
114		}
115		if (!svc_create(rusers_service, RUSERSPROG, RUSERSVERS_IDLE,
116		    "udp")) {
117			syslog(LOG_ERR, "unable to create "
118			    "(RUSERSPROG, RUSERSVERS_IDLE).");
119			return 1;
120		}
121	}
122
123	svc_run();
124	syslog(LOG_ERR, "svc_run returned");
125	return 1;
126}
127