OpenBSD-4.6/usr.sbin/ypserv/yppush/yppush_svc.c

/*	$OpenBSD: yppush_svc.c,v 1.12 2006/04/03 05:01:23 deraadt Exp $ */

/*
 * Copyright (c) 1996 Mats O Jansson <moj@stacken.kth.se>
 * 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.
 */

#ifndef lint
static const char rcsid[] = "$OpenBSD: yppush_svc.c,v 1.12 2006/04/03 05:01:23 deraadt Exp $";
#endif /* not lint */

#include <sys/types.h>
#include <sys/ttycom.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <stdio.h>
#include <stdlib.h>
#include <netdb.h>
#include <memory.h>
#include <syslog.h>
#include <rpcsvc/yp.h>

#include "yppush.h"

#ifdef DEBUG
#define RPC_SVC_FG
#endif

#define _RPCSVC_CLOSEDOWN 120
int _rpcpmstart;		/* Started by a port monitor ? */
int _rpcfdtype;			/* Whether Stream or Datagram ? */
int _rpcsvcdirty;		/* Still serving ? */

static
void _msgout(char *msg)
{
#ifdef RPC_SVC_FG
	if (_rpcpmstart)
		syslog(LOG_ERR, "%s", msg);
	else
		(void) fprintf(stderr, "%s\n", msg);
#else
	syslog(LOG_ERR, "%s", msg);
#endif
}

void
yppush_xfrrespprog_1(struct svc_req *rqstp, SVCXPRT *transp)
{
	union argument {
		int fill;
	} argument;
	char *result;
	xdrproc_t xdr_argument, xdr_result;
	char *(*local)(union argument *, struct svc_req *);

	_rpcsvcdirty = 1;
	switch (rqstp->rq_proc) {
	case YPPUSHPROC_NULL:
		xdr_argument = xdr_void;
		xdr_result = xdr_void;
		local = (char *(*)(union argument *, struct svc_req *))
		    yppushproc_null_1_svc;
		break;

	case YPPUSHPROC_XFRRESP:
		xdr_argument = xdr_yppushresp_xfr;
		xdr_result = xdr_void;
		local = (char *(*)(union argument *, struct svc_req *))
		    yppushproc_xfrresp_1_svc;
		break;

	default:
		svcerr_noproc(transp);
		_rpcsvcdirty = 0;
		exit(1);
		return;
	}
	(void) memset(&argument, 0, sizeof(argument));
	if (!svc_getargs(transp, xdr_argument, (caddr_t)&argument)) {
		svcerr_decode(transp);
		_rpcsvcdirty = 0;
		exit(1);
		return;
	}
	result = (*local)(&argument, rqstp);
	if (result != NULL && !svc_sendreply(transp, xdr_result, result)) {
		svcerr_systemerr(transp);
	}
	if (!svc_freeargs(transp, xdr_argument, (caddr_t)&argument)) {
		_msgout("unable to free arguments");
		exit(1);
	}
	_rpcsvcdirty = 0;
	if (rqstp->rq_proc!=YPPUSHPROC_NULL)
		exit(0);
}