166 lines
4.0 KiB
C
166 lines
4.0 KiB
C
/* $NetBSD: sprayd.c,v 1.15 2009/10/21 01:07:46 snj Exp $ */
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/*-
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* SPDX-License-Identifier: BSD-2-Clause-NetBSD
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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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*
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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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#ifndef lint
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static const char rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
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#include <rpc/rpc.h>
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#include <rpcsvc/spray.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/time.h>
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#include <sys/socket.h>
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#include <syslog.h>
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#include <unistd.h>
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static void spray_service(struct svc_req *, SVCXPRT *);
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static int from_inetd = 1;
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#define timersub(tvp, uvp, vvp) \
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do { \
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(vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \
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(vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \
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if ((vvp)->tv_usec < 0) { \
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(vvp)->tv_sec--; \
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(vvp)->tv_usec += 1000000; \
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} \
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} while (0)
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#define TIMEOUT 120
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static void
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cleanup(int sig __unused)
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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 sig __unused)
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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 __unused, char *argv[] __unused)
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{
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SVCXPRT *transp;
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int ok;
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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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}
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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_tli_create(0, NULL, NULL, 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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ok = svc_reg(transp, SPRAYPROG, SPRAYVERS,
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spray_service, NULL);
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} else
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ok = svc_create(spray_service,
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SPRAYPROG, SPRAYVERS, "udp");
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if (!ok) {
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syslog(LOG_ERR,
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"unable to register (SPRAYPROG, SPRAYVERS, %s)",
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(!from_inetd)?"udp":"(inetd)");
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exit(1);
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}
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svc_run();
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syslog(LOG_ERR, "svc_run returned");
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return 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, (xdrproc_t)xdr_void, 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, (xdrproc_t)xdr_spraycumul, &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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