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/*
* 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 const char rcsid[] =
"$FreeBSD$";
#endif /* not lint */
#include <rpc/rpc.h>
#include <rpcsvc/spray.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <syslog.h>
#include <unistd.h>
static void spray_service(struct svc_req *, SVCXPRT *);
static int from_inetd = 1;
#define timersub(tvp, uvp, vvp) \
do { \
(vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \
(vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \
if ((vvp)->tv_usec < 0) { \
(vvp)->tv_sec--; \
(vvp)->tv_usec += 1000000; \
} \
} while (0)
#define TIMEOUT 120
void
cleanup(int sig __unused)
{
(void) rpcb_unset(SPRAYPROG, SPRAYVERS, NULL);
exit(0);
}
void
die(int sig __unused)
{
exit(0);
}
int
main(int argc, char *argv[])
{
SVCXPRT *transp;
int ok;
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_CONS|LOG_PID, LOG_DAEMON);
if (from_inetd) {
transp = svc_tli_create(0, NULL, NULL, 0, 0);
if (transp == NULL) {
syslog(LOG_ERR, "cannot create udp service.");
exit(1);
}
ok = svc_reg(transp, SPRAYPROG, SPRAYVERS,
spray_service, NULL);
} else
ok = svc_create(spray_service,
SPRAYPROG, SPRAYVERS, "udp");
if (!ok) {
syslog(LOG_ERR,
"unable to register (SPRAYPROG, SPRAYVERS, %s)",
(!from_inetd)?"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 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, &scum)) {
svcerr_systemerr(transp);
syslog(LOG_ERR, "bad svc_sendreply");
}
}
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