/*-
 * Copyright (c) 1993, John Brezak
 * 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 the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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[] = "$Id: rstatd.c,v 1.4 2001/01/17 19:23:26 deraadt Exp $";
#endif /* not lint */

#include <stdio.h>
#include <rpc/rpc.h>
#include <signal.h>
#include <syslog.h>
#include <rpcsvc/rstat.h>

extern void rstat_service();

int from_inetd = 1;     /* started from inetd ? */
int closedown = 20;	/* how long to wait before going dormant */

void
cleanup()
{
	(void) pmap_unset(RSTATPROG, RSTATVERS_TIME);	/* XXX signal races */
	(void) pmap_unset(RSTATPROG, RSTATVERS_SWTCH);
	(void) pmap_unset(RSTATPROG, RSTATVERS_ORIG);
	_exit(0);
}

main(argc, argv)
	int argc;
	char *argv[];
{
	SVCXPRT *transp;
	int sock = 0;
	int proto = 0;
	struct sockaddr_in from;
	int fromlen;

	if (argc == 2)
		closedown = atoi(argv[1]);
	if (closedown <= 0)
		closedown = 20;

	/*
	 * 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(RSTATPROG, RSTATVERS_TIME);
		(void)pmap_unset(RSTATPROG, RSTATVERS_SWTCH);
		(void)pmap_unset(RSTATPROG, RSTATVERS_ORIG);

		(void) signal(SIGINT, cleanup);
		(void) signal(SIGTERM, cleanup);
		(void) signal(SIGHUP, cleanup);
	}

	openlog("rpc.rstatd", LOG_CONS|LOG_PID, LOG_DAEMON);

	transp = svcudp_create(sock);
	if (transp == NULL) {
		syslog(LOG_ERR, "cannot create udp service.");
		exit(1);
	}
	if (!svc_register(transp, RSTATPROG, RSTATVERS_TIME, rstat_service, proto)) {
		syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_TIME, udp).");
		exit(1);
	}
	if (!svc_register(transp, RSTATPROG, RSTATVERS_SWTCH, rstat_service, proto)) {
		syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_SWTCH, udp).");
		exit(1);
	}
	if (!svc_register(transp, RSTATPROG, RSTATVERS_ORIG, rstat_service, proto)) {
		syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_ORIG, udp).");
		exit(1);
	}

	svc_run();
	syslog(LOG_ERR, "svc_run returned");
	exit(1);
}