xref: /openbsd-src/lib/libc/yp/yp_order.c (revision 2d62dde8310c0f11b45f14adaba36cf1950be6bf)

/*	$OpenBSD: yp_order.c,v 1.11 2022/08/02 16:59:30 deraadt Exp $ */
/*
 * Copyright (c) 1992, 1993 Theo de Raadt <deraadt@theos.com>
 * 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/types.h>
#include <string.h>
#include <limits.h>
#include <rpc/rpc.h>
#include <rpc/xdr.h>
#include <rpcsvc/yp.h>
#include <rpcsvc/ypclnt.h>
#include "ypinternal.h"

int
yp_order(const char *indomain, const char *inmap, int *outorder)
{
	struct dom_binding *ysd;
	struct ypresp_order ypro;
	struct ypreq_nokey yprnk;
	struct timeval  tv;
	int             r = 0;

	if (indomain == NULL || *indomain == '\0' ||
	    strlen(indomain) > YPMAXDOMAIN || inmap == NULL ||
	    *inmap == '\0' || strlen(inmap) > YPMAXMAP || outorder == NULL)
		return YPERR_BADARGS;

again:
	if (_yp_dobind(indomain, &ysd) != 0)
		return YPERR_DOMAIN;

	tv.tv_sec = _yplib_timeout;
	tv.tv_usec = 0;

	yprnk.domain = (char *)indomain;
	yprnk.map = (char *)inmap;

	(void)memset(&ypro, 0, sizeof ypro);

	r = clnt_call(ysd->dom_client, YPPROC_ORDER,
	    xdr_ypreq_nokey, &yprnk, xdr_ypresp_order, &ypro, tv);
	/*
	 * XXX
	 * NIS+ YP emulation package does not implement YPPROC_ORDER
	 */
	if (r == RPC_PROCUNAVAIL) {
		r = YPERR_YPERR;
		goto bail;
	}
	if (r != RPC_SUCCESS) {
		clnt_perror(ysd->dom_client, "yp_order: clnt_call");
		_yp_unbind(ysd);
		goto again;
	}
	*outorder = ypro.ordernum;
	xdr_free(xdr_ypresp_order, (char *) &ypro);
	r = ypprot_err(ypro.stat);
bail:
	_yp_unbind(ysd);
	return r;
}