165 lines
4.1 KiB
C
165 lines
4.1 KiB
C
/* $NetBSD: sprayd.c,v 1.14 2006/05/09 20:18:07 mrg Exp $ */
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/*
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* Copyright (c) 1994 Christos Zoulas
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Christos Zoulas.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__RCSID("$NetBSD: sprayd.c,v 1.14 2006/05/09 20:18:07 mrg Exp $");
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#endif /* not lint */
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#include <stdio.h>
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#include <signal.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <syslog.h>
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#include <sys/socket.h>
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#include <sys/time.h>
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#include <rpc/rpc.h>
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#include <rpcsvc/spray.h>
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static void cleanup(int);
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static void die(int);
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static void spray_service(struct svc_req *, SVCXPRT *);
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int main(int, char *[]);
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static int from_inetd = 1;
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#define TIMEOUT 120
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static void
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cleanup(int n)
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{
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(void)rpcb_unset(SPRAYPROG, SPRAYVERS, NULL);
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exit(0);
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}
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static void
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die(int n)
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{
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exit(0);
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}
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int
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main(int argc, char *argv[])
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{
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SVCXPRT *transp;
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struct sockaddr_storage from;
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socklen_t fromlen;
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/*
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* See if inetd started us
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*/
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fromlen = sizeof(from);
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if (getsockname(0, (struct sockaddr *)&from, &fromlen) < 0)
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from_inetd = 0;
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if (!from_inetd) {
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daemon(0, 0);
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(void)rpcb_unset(SPRAYPROG, SPRAYVERS, NULL);
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(void)signal(SIGINT, cleanup);
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(void)signal(SIGTERM, cleanup);
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(void)signal(SIGHUP, cleanup);
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} else {
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(void)signal(SIGALRM, die);
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alarm(TIMEOUT);
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}
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openlog("rpc.sprayd", LOG_PID, LOG_DAEMON);
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if (from_inetd) {
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transp = svc_dg_create(0, 0, 0);
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if (transp == NULL) {
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syslog(LOG_ERR, "cannot create udp service.");
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exit(1);
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}
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if (!svc_reg(transp, SPRAYPROG, SPRAYVERS, spray_service,
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NULL)) {
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syslog(LOG_ERR,
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"unable to register (SPRAYPROG, SPRAYVERS).");
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exit(1);
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}
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} else {
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if (!svc_create(spray_service, SPRAYPROG, SPRAYVERS, "udp")) {
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syslog(LOG_ERR,
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"unable to register (SPRAYPROG, SPRAYVERS).");
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exit(1);
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}
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}
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svc_run();
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syslog(LOG_ERR, "svc_run returned");
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exit(1);
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}
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static void
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spray_service(struct svc_req *rqstp, SVCXPRT *transp)
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{
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static spraycumul scum;
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static struct timeval clear, get;
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switch (rqstp->rq_proc) {
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case SPRAYPROC_CLEAR:
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scum.counter = 0;
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(void)gettimeofday(&clear, 0);
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/*FALLTHROUGH*/
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case NULLPROC:
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(void)svc_sendreply(transp, xdr_void, (char *)NULL);
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return;
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case SPRAYPROC_SPRAY:
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scum.counter++;
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return;
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case SPRAYPROC_GET:
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(void)gettimeofday(&get, 0);
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timersub(&get, &clear, &get);
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scum.clock.sec = get.tv_sec;
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scum.clock.usec = get.tv_usec;
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break;
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default:
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svcerr_noproc(transp);
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return;
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}
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if (!svc_sendreply(transp, xdr_spraycumul, (caddr_t)&scum)) {
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svcerr_systemerr(transp);
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syslog(LOG_WARNING, "bad svc_sendreply");
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}
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}
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