1 /* $NetBSD: rusersd.c,v 1.17 2007/12/15 19:44:46 perry 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 1.17 2007/12/15 19:44:46 perry 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
48 int from_inetd = 1;
49
50 static void cleanup(int) __dead;
51
52 static void
53 /*ARGSUSED*/
cleanup(int n)54 cleanup(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
62 int
63 /*ARGSUSED*/
main(int argc,char * argv[])64 main(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