xref: /dragonfly/libexec/rpc.rstatd/rstatd.c (revision 0cfebe3d)
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  * $FreeBSD: src/libexec/rpc.rstatd/rstatd.c,v 1.8 1999/08/28 00:09:54 peter Exp $
34  * $DragonFly: src/libexec/rpc.rstatd/rstatd.c,v 1.2 2003/06/17 04:27:07 dillon Exp $
35  */
36 
37 #include <stdlib.h>
38 #include <rpc/rpc.h>
39 #include <signal.h>
40 #include <syslog.h>
41 #include <rpc/pmap_clnt.h>
42 #include <rpcsvc/rstat.h>
43 
44 extern void rstat_service();
45 
46 int from_inetd = 1;     /* started from inetd ? */
47 int closedown = 20;	/* how long to wait before going dormant */
48 
49 void
50 cleanup()
51 {
52         (void) pmap_unset(RSTATPROG, RSTATVERS_TIME);
53         (void) pmap_unset(RSTATPROG, RSTATVERS_SWTCH);
54         (void) pmap_unset(RSTATPROG, RSTATVERS_ORIG);
55         exit(0);
56 }
57 
58 int
59 main(argc, argv)
60         int argc;
61         char *argv[];
62 {
63 	SVCXPRT *transp;
64         int sock = 0;
65         int proto = 0;
66 	struct sockaddr_in from;
67 	int fromlen;
68 
69         if (argc == 2)
70                 closedown = atoi(argv[1]);
71         if (closedown <= 0)
72                 closedown = 20;
73 
74         /*
75          * See if inetd started us
76          */
77 	fromlen = sizeof(from);
78         if (getsockname(0, (struct sockaddr *)&from, &fromlen) < 0) {
79                 from_inetd = 0;
80                 sock = RPC_ANYSOCK;
81                 proto = IPPROTO_UDP;
82         }
83 
84         if (!from_inetd) {
85                 daemon(0, 0);
86 
87                 (void)pmap_unset(RSTATPROG, RSTATVERS_TIME);
88                 (void)pmap_unset(RSTATPROG, RSTATVERS_SWTCH);
89                 (void)pmap_unset(RSTATPROG, RSTATVERS_ORIG);
90 
91 		(void) signal(SIGINT, cleanup);
92 		(void) signal(SIGTERM, cleanup);
93 		(void) signal(SIGHUP, cleanup);
94         }
95 
96         openlog("rpc.rstatd", LOG_CONS|LOG_PID, LOG_DAEMON);
97 
98 	transp = svcudp_create(sock);
99 	if (transp == NULL) {
100 		syslog(LOG_ERR, "cannot create udp service");
101 		exit(1);
102 	}
103 	if (!svc_register(transp, RSTATPROG, RSTATVERS_TIME, rstat_service, proto)) {
104 		syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_TIME, %s)", proto?"udp":"(inetd)");
105 		exit(1);
106 	}
107 	if (!svc_register(transp, RSTATPROG, RSTATVERS_SWTCH, rstat_service, proto)) {
108 		syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_SWTCH, %s)", proto?"udp":"(inetd)");
109 		exit(1);
110 	}
111 	if (!svc_register(transp, RSTATPROG, RSTATVERS_ORIG, rstat_service, proto)) {
112 		syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_ORIG, %s)", proto?"udp":"(inetd)");
113 		exit(1);
114 	}
115 
116         svc_run();
117 	syslog(LOG_ERR, "svc_run returned");
118 	exit(1);
119 }
120