1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
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. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #include <stdlib.h>
33 #include <rpc/rpc.h>
34 #include <signal.h>
35 #include <syslog.h>
36 #include <rpcsvc/rstat.h>
37
38 extern void rstat_service(struct svc_req *, SVCXPRT *);
39
40 int from_inetd = 1; /* started from inetd ? */
41 int closedown = 20; /* how long to wait before going dormant */
42
43 void
cleanup(int sig __unused)44 cleanup(int sig __unused)
45 {
46 (void) rpcb_unset(RSTATPROG, RSTATVERS_TIME, NULL);
47 (void) rpcb_unset(RSTATPROG, RSTATVERS_SWTCH, NULL);
48 (void) rpcb_unset(RSTATPROG, RSTATVERS_ORIG, NULL);
49 exit(0);
50 }
51
52 int
main(int argc,char * argv[])53 main(int argc, char *argv[])
54 {
55 SVCXPRT *transp;
56 int ok;
57 struct sockaddr_storage from;
58 socklen_t fromlen;
59
60 if (argc == 2)
61 closedown = atoi(argv[1]);
62 if (closedown <= 0)
63 closedown = 20;
64
65 /*
66 * See if inetd started us
67 */
68 fromlen = sizeof(from);
69 if (getsockname(0, (struct sockaddr *)&from, &fromlen) < 0) {
70 from_inetd = 0;
71 }
72
73 if (!from_inetd) {
74 daemon(0, 0);
75
76 (void)rpcb_unset(RSTATPROG, RSTATVERS_TIME, NULL);
77 (void)rpcb_unset(RSTATPROG, RSTATVERS_SWTCH, NULL);
78 (void)rpcb_unset(RSTATPROG, RSTATVERS_ORIG, NULL);
79
80 (void) signal(SIGINT, cleanup);
81 (void) signal(SIGTERM, cleanup);
82 (void) signal(SIGHUP, cleanup);
83 }
84
85 openlog("rpc.rstatd", 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, RSTATPROG, RSTATVERS_TIME,
94 rstat_service, NULL);
95 } else
96 ok = svc_create(rstat_service,
97 RSTATPROG, RSTATVERS_TIME, "udp");
98 if (!ok) {
99 syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_TIME, %s)", (!from_inetd)?"udp":"(inetd)");
100 exit(1);
101 }
102 if (from_inetd)
103 ok = svc_reg(transp, RSTATPROG, RSTATVERS_SWTCH,
104 rstat_service, NULL);
105 else
106 ok = svc_create(rstat_service,
107 RSTATPROG, RSTATVERS_SWTCH, "udp");
108 if (!ok) {
109 syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_SWTCH, %s)", (!from_inetd)?"udp":"(inetd)");
110 exit(1);
111 }
112 if (from_inetd)
113 ok = svc_reg(transp, RSTATPROG, RSTATVERS_ORIG,
114 rstat_service, NULL);
115 else
116 ok = svc_create(rstat_service,
117 RSTATPROG, RSTATVERS_ORIG, "udp");
118 if (!ok) {
119 syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_ORIG, %s)", (!from_inetd)?"udp":"(inetd)");
120 exit(1);
121 }
122
123 svc_run();
124 syslog(LOG_ERR, "svc_run returned");
125 exit(1);
126 }
127