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 #ifndef lint
33 static const char rcsid[] =
34 "$FreeBSD$";
35 #endif /* not lint */
36
37 #include <stdlib.h>
38 #include <rpc/rpc.h>
39 #include <signal.h>
40 #include <syslog.h>
41 #include <rpcsvc/rstat.h>
42
43 extern void rstat_service(struct svc_req *, SVCXPRT *);
44
45 int from_inetd = 1; /* started from inetd ? */
46 int closedown = 20; /* how long to wait before going dormant */
47
48 void
cleanup(int sig __unused)49 cleanup(int sig __unused)
50 {
51 (void) rpcb_unset(RSTATPROG, RSTATVERS_TIME, NULL);
52 (void) rpcb_unset(RSTATPROG, RSTATVERS_SWTCH, NULL);
53 (void) rpcb_unset(RSTATPROG, RSTATVERS_ORIG, NULL);
54 exit(0);
55 }
56
57 int
main(int argc,char * argv[])58 main(int argc, char *argv[])
59 {
60 SVCXPRT *transp;
61 int ok;
62 struct sockaddr_storage from;
63 socklen_t fromlen;
64
65 if (argc == 2)
66 closedown = atoi(argv[1]);
67 if (closedown <= 0)
68 closedown = 20;
69
70 /*
71 * See if inetd started us
72 */
73 fromlen = sizeof(from);
74 if (getsockname(0, (struct sockaddr *)&from, &fromlen) < 0) {
75 from_inetd = 0;
76 }
77
78 if (!from_inetd) {
79 daemon(0, 0);
80
81 (void)rpcb_unset(RSTATPROG, RSTATVERS_TIME, NULL);
82 (void)rpcb_unset(RSTATPROG, RSTATVERS_SWTCH, NULL);
83 (void)rpcb_unset(RSTATPROG, RSTATVERS_ORIG, NULL);
84
85 (void) signal(SIGINT, cleanup);
86 (void) signal(SIGTERM, cleanup);
87 (void) signal(SIGHUP, cleanup);
88 }
89
90 openlog("rpc.rstatd", LOG_CONS|LOG_PID, LOG_DAEMON);
91
92 if (from_inetd) {
93 transp = svc_tli_create(0, NULL, NULL, 0, 0);
94 if (transp == NULL) {
95 syslog(LOG_ERR, "cannot create udp service.");
96 exit(1);
97 }
98 ok = svc_reg(transp, RSTATPROG, RSTATVERS_TIME,
99 rstat_service, NULL);
100 } else
101 ok = svc_create(rstat_service,
102 RSTATPROG, RSTATVERS_TIME, "udp");
103 if (!ok) {
104 syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_TIME, %s)", (!from_inetd)?"udp":"(inetd)");
105 exit(1);
106 }
107 if (from_inetd)
108 ok = svc_reg(transp, RSTATPROG, RSTATVERS_SWTCH,
109 rstat_service, NULL);
110 else
111 ok = svc_create(rstat_service,
112 RSTATPROG, RSTATVERS_SWTCH, "udp");
113 if (!ok) {
114 syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_SWTCH, %s)", (!from_inetd)?"udp":"(inetd)");
115 exit(1);
116 }
117 if (from_inetd)
118 ok = svc_reg(transp, RSTATPROG, RSTATVERS_ORIG,
119 rstat_service, NULL);
120 else
121 ok = svc_create(rstat_service,
122 RSTATPROG, RSTATVERS_ORIG, "udp");
123 if (!ok) {
124 syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_ORIG, %s)", (!from_inetd)?"udp":"(inetd)");
125 exit(1);
126 }
127
128 svc_run();
129 syslog(LOG_ERR, "svc_run returned");
130 exit(1);
131 }
132