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. 29 * 30 * $Id: sprayd.c,v 1.7 1995/03/26 23:36:44 mycroft Exp $ 31 */ 32 33 #ifndef lint 34 static char rcsid[] = "$Id: sprayd.c,v 1.7 1995/03/26 23:36:44 mycroft Exp $"; 35 #endif /* not lint */ 36 37 #include <stdio.h> 38 #include <signal.h> 39 #include <rpc/rpc.h> 40 #include <sys/time.h> 41 #include <syslog.h> 42 #include <rpcsvc/spray.h> 43 44 static void spray_service __P((struct svc_req *, SVCXPRT *)); 45 46 static int from_inetd = 1; 47 48 #define TIMEOUT 120 49 50 void 51 cleanup() 52 { 53 (void) pmap_unset(SPRAYPROG, SPRAYVERS); 54 exit(0); 55 } 56 57 void 58 die() 59 { 60 exit(0); 61 } 62 63 int 64 main(argc, argv) 65 int argc; 66 char *argv[]; 67 { 68 SVCXPRT *transp; 69 int sock = 0; 70 int proto = 0; 71 struct sockaddr_in from; 72 int fromlen; 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(SPRAYPROG, SPRAYVERS); 88 89 (void) signal(SIGINT, cleanup); 90 (void) signal(SIGTERM, cleanup); 91 (void) signal(SIGHUP, cleanup); 92 } else { 93 (void) signal(SIGALRM, die); 94 alarm(TIMEOUT); 95 } 96 97 openlog("rpc.sprayd", LOG_CONS|LOG_PID, LOG_DAEMON); 98 99 transp = svcudp_create(sock); 100 if (transp == NULL) { 101 syslog(LOG_ERR, "cannot create udp service."); 102 return 1; 103 } 104 if (!svc_register(transp, SPRAYPROG, SPRAYVERS, spray_service, proto)) { 105 syslog(LOG_ERR, 106 "unable to register (SPRAYPROG, SPRAYVERS, %s).", 107 proto ? "udp" : "(inetd)"); 108 return 1; 109 } 110 111 svc_run(); 112 syslog(LOG_ERR, "svc_run returned"); 113 return 1; 114 } 115 116 117 static void 118 spray_service(rqstp, transp) 119 struct svc_req *rqstp; 120 SVCXPRT *transp; 121 { 122 static spraycumul scum; 123 static struct timeval clear, get; 124 125 switch (rqstp->rq_proc) { 126 case SPRAYPROC_CLEAR: 127 scum.counter = 0; 128 (void) gettimeofday(&clear, 0); 129 /*FALLTHROUGH*/ 130 131 case NULLPROC: 132 (void)svc_sendreply(transp, xdr_void, (char *)NULL); 133 return; 134 135 case SPRAYPROC_SPRAY: 136 scum.counter++; 137 return; 138 139 case SPRAYPROC_GET: 140 (void) gettimeofday(&get, 0); 141 timersub(&get, &clear, &get); 142 scum.clock.sec = get.tv_sec; 143 scum.clock.usec = get.tv_usec; 144 break; 145 146 default: 147 svcerr_noproc(transp); 148 return; 149 } 150 151 if (!svc_sendreply(transp, xdr_spraycumul, (caddr_t)&scum)) { 152 svcerr_systemerr(transp); 153 syslog(LOG_ERR, "bad svc_sendreply"); 154 } 155 } 156