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/* $OpenBSD: sprayd.c,v 1.6 2002/06/29 07:30:01 deraadt Exp $*/
/*
* Copyright (c) 1994 Christos Zoulas
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Christos Zoulas.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef lint
static char rcsid[] = "$OpenBSD: sprayd.c,v 1.6 2002/06/29 07:30:01 deraadt Exp $";
#endif /* not lint */
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <unistd.h>
#include <syslog.h>
#include <rpc/rpc.h>
#include <rpcsvc/spray.h>
static void spray_service(struct svc_req *, SVCXPRT *);
static int from_inetd = 1;
#define TIMEOUT 120
void
cleanup(int signo)
{
(void) pmap_unset(SPRAYPROG, SPRAYVERS); /* XXX signal race */
_exit(0);
}
void
die(int signo)
{
_exit(0);
}
int
main(int argc, char *argv[])
{
SVCXPRT *transp;
int sock = 0;
int proto = 0;
struct sockaddr_in from;
int fromlen;
/*
* See if inetd started us
*/
fromlen = sizeof(from);
if (getsockname(0, (struct sockaddr *)&from, &fromlen) < 0) {
from_inetd = 0;
sock = RPC_ANYSOCK;
proto = IPPROTO_UDP;
}
if (!from_inetd) {
daemon(0, 0);
(void) pmap_unset(SPRAYPROG, SPRAYVERS);
(void) signal(SIGINT, cleanup);
(void) signal(SIGTERM, cleanup);
(void) signal(SIGHUP, cleanup);
} else {
(void) signal(SIGALRM, die);
alarm(TIMEOUT);
}
openlog("rpc.sprayd", LOG_CONS|LOG_PID, LOG_DAEMON);
transp = svcudp_create(sock);
if (transp == NULL) {
syslog(LOG_ERR, "cannot create udp service.");
return 1;
}
if (!svc_register(transp, SPRAYPROG, SPRAYVERS, spray_service, proto)) {
syslog(LOG_ERR,
"unable to register (SPRAYPROG, SPRAYVERS, %s).",
proto ? "udp" : "(inetd)");
return 1;
}
svc_run();
syslog(LOG_ERR, "svc_run returned");
return 1;
}
static void
spray_service(struct svc_req *rqstp, SVCXPRT *transp)
{
static struct timeval clear, get;
static spraycumul scum;
switch (rqstp->rq_proc) {
case SPRAYPROC_CLEAR:
scum.counter = 0;
(void) gettimeofday(&clear, 0);
/*FALLTHROUGH*/
case NULLPROC:
(void)svc_sendreply(transp, xdr_void, (char *)NULL);
return;
case SPRAYPROC_SPRAY:
scum.counter++;
return;
case SPRAYPROC_GET:
(void) gettimeofday(&get, 0);
timersub(&get, &clear, &get);
scum.clock.sec = get.tv_sec;
scum.clock.usec = get.tv_usec;
break;
default:
svcerr_noproc(transp);
return;
}
if (!svc_sendreply(transp, xdr_spraycumul, (caddr_t)&scum)) {
svcerr_systemerr(transp);
syslog(LOG_ERR, "bad svc_sendreply");
}
}
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