Ansify some function definitions that were previously overlooked.
[dragonfly.git] / libexec / rpc.sprayd / sprayd.c
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1/*
2 * Copyright (c) 1994 Christos Zoulas
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 Christos Zoulas.
16 * 4. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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29 *
30 * $FreeBSD: src/libexec/rpc.sprayd/sprayd.c,v 1.5 1999/08/28 00:09:59 peter Exp $
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31 */
32
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33#include <rpc/rpc.h>
34#include <rpc/pmap_clnt.h>
35#include <rpcsvc/spray.h>
36#include <signal.h>
37#include <stdio.h>
38#include <stdlib.h>
39#include <sys/time.h>
40#include <sys/socket.h>
41#include <syslog.h>
42#include <unistd.h>
43
3eefb696 44static void spray_service (struct svc_req *, SVCXPRT *);
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45
46static int from_inetd = 1;
47
48#define timersub(tvp, uvp, vvp) \
49 do { \
50 (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \
51 (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \
52 if ((vvp)->tv_usec < 0) { \
53 (vvp)->tv_sec--; \
54 (vvp)->tv_usec += 1000000; \
55 } \
56 } while (0)
57
58#define TIMEOUT 120
59
60void
89a89091 61cleanup(int sig)
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62{
63 (void) pmap_unset(SPRAYPROG, SPRAYVERS);
64 exit(0);
65}
66
67void
89a89091 68die(int sig)
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69{
70 exit(0);
71}
72
73int
89a89091 74main(int argc, char *argv[])
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75{
76 SVCXPRT *transp;
77 int sock = 0;
78 int proto = 0;
79 struct sockaddr_in from;
80 int fromlen;
81
82 /*
83 * See if inetd started us
84 */
85 fromlen = sizeof(from);
86 if (getsockname(0, (struct sockaddr *)&from, &fromlen) < 0) {
87 from_inetd = 0;
88 sock = RPC_ANYSOCK;
89 proto = IPPROTO_UDP;
90 }
91
92 if (!from_inetd) {
93 daemon(0, 0);
94
95 (void) pmap_unset(SPRAYPROG, SPRAYVERS);
96
97 (void) signal(SIGINT, cleanup);
98 (void) signal(SIGTERM, cleanup);
99 (void) signal(SIGHUP, cleanup);
100 } else {
101 (void) signal(SIGALRM, die);
102 alarm(TIMEOUT);
103 }
104
105 openlog("rpc.sprayd", LOG_CONS|LOG_PID, LOG_DAEMON);
106
107 transp = svcudp_create(sock);
108 if (transp == NULL) {
109 syslog(LOG_ERR, "cannot create udp service");
110 return 1;
111 }
112 if (!svc_register(transp, SPRAYPROG, SPRAYVERS, spray_service, proto)) {
113 syslog(LOG_ERR,
114 "unable to register (SPRAYPROG, SPRAYVERS, %s)",
115 proto ? "udp" : "(inetd)");
116 return 1;
117 }
118
119 svc_run();
120 syslog(LOG_ERR, "svc_run returned");
121 return 1;
122}
123
124
125static void
89a89091 126spray_service(struct svc_req *rqstp, SVCXPRT *transp)
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127{
128 static spraycumul scum;
129 static struct timeval clear, get;
130
131 switch (rqstp->rq_proc) {
132 case SPRAYPROC_CLEAR:
133 scum.counter = 0;
134 (void) gettimeofday(&clear, 0);
135 /*FALLTHROUGH*/
136
137 case NULLPROC:
6d557b73 138 (void)svc_sendreply(transp, (xdrproc_t)xdr_void, NULL);
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139 return;
140
141 case SPRAYPROC_SPRAY:
142 scum.counter++;
143 return;
144
145 case SPRAYPROC_GET:
146 (void) gettimeofday(&get, 0);
147 timersub(&get, &clear, &get);
148 scum.clock.sec = get.tv_sec;
149 scum.clock.usec = get.tv_usec;
150 break;
151
152 default:
153 svcerr_noproc(transp);
154 return;
155 }
156
6d557b73 157 if (!svc_sendreply(transp, (xdrproc_t)xdr_spraycumul, &scum)) {
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158 svcerr_systemerr(transp);
159 syslog(LOG_ERR, "bad svc_sendreply");
160 }
161}