158 lines
3.7 KiB
C
158 lines
3.7 KiB
C
/* $NetBSD: sprayd.c,v 1.18 2011/09/16 16:13:17 plunky 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.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#ifndef lint
|
|
__RCSID("$NetBSD: sprayd.c,v 1.18 2011/09/16 16:13:17 plunky Exp $");
|
|
#endif /* not lint */
|
|
|
|
#include <stdio.h>
|
|
#include <signal.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <syslog.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/time.h>
|
|
#include <rpc/rpc.h>
|
|
#include <rpcsvc/spray.h>
|
|
|
|
__dead static void cleanup(int);
|
|
__dead static void die(int);
|
|
static void spray_service(struct svc_req *, SVCXPRT *);
|
|
|
|
static int from_inetd = 1;
|
|
|
|
#define TIMEOUT 120
|
|
|
|
static void
|
|
cleanup(int n)
|
|
{
|
|
|
|
(void)rpcb_unset(SPRAYPROG, SPRAYVERS, NULL);
|
|
exit(0);
|
|
}
|
|
|
|
static void
|
|
die(int n)
|
|
{
|
|
|
|
exit(0);
|
|
}
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
SVCXPRT *transp;
|
|
struct sockaddr_storage from;
|
|
socklen_t fromlen;
|
|
|
|
/*
|
|
* See if inetd started us
|
|
*/
|
|
fromlen = sizeof(from);
|
|
if (getsockname(0, (struct sockaddr *)&from, &fromlen) < 0)
|
|
from_inetd = 0;
|
|
|
|
if (!from_inetd) {
|
|
daemon(0, 0);
|
|
|
|
(void)rpcb_unset(SPRAYPROG, SPRAYVERS, NULL);
|
|
|
|
(void)signal(SIGINT, cleanup);
|
|
(void)signal(SIGTERM, cleanup);
|
|
(void)signal(SIGHUP, cleanup);
|
|
} else {
|
|
(void)signal(SIGALRM, die);
|
|
alarm(TIMEOUT);
|
|
}
|
|
|
|
openlog("rpc.sprayd", LOG_PID, LOG_DAEMON);
|
|
|
|
if (from_inetd) {
|
|
transp = svc_dg_create(0, 0, 0);
|
|
if (transp == NULL) {
|
|
syslog(LOG_ERR, "cannot create udp service.");
|
|
exit(1);
|
|
}
|
|
if (!svc_reg(transp, SPRAYPROG, SPRAYVERS, spray_service,
|
|
NULL)) {
|
|
syslog(LOG_ERR,
|
|
"unable to register (SPRAYPROG, SPRAYVERS).");
|
|
exit(1);
|
|
}
|
|
} else {
|
|
if (!svc_create(spray_service, SPRAYPROG, SPRAYVERS, "udp")) {
|
|
syslog(LOG_ERR,
|
|
"unable to register (SPRAYPROG, SPRAYVERS).");
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
svc_run();
|
|
syslog(LOG_ERR, "svc_run returned");
|
|
exit(1);
|
|
}
|
|
|
|
|
|
static void
|
|
spray_service(struct svc_req *rqstp, SVCXPRT *transp)
|
|
{
|
|
static spraycumul scum;
|
|
static struct timeval clear, get;
|
|
|
|
switch (rqstp->rq_proc) {
|
|
case SPRAYPROC_CLEAR:
|
|
scum.counter = 0;
|
|
(void)gettimeofday(&clear, 0);
|
|
/*FALLTHROUGH*/
|
|
|
|
case NULLPROC:
|
|
(void)svc_sendreply(transp, (xdrproc_t)xdr_void, 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, (xdrproc_t)xdr_spraycumul, (caddr_t)&scum)) {
|
|
svcerr_systemerr(transp);
|
|
syslog(LOG_WARNING, "bad svc_sendreply");
|
|
}
|
|
}
|