xref: /src/lib/libc/yp/yp_master.c

/*	$NetBSD: yp_master.c,v 1.1 1996/05/14 23:37:31 jtc Exp $	 */

/*
 * Copyright (c) 1992, 1993 Theo de Raadt <deraadt@fsa.ca>
 * 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 Theo de Raadt.
 * 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.
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char rcsid[] = "$NetBSD: yp_master.c,v 1.1 1996/05/14 23:37:31 jtc Exp $";
#endif

#include <string.h>
#include <rpc/rpc.h>
#include <rpcsvc/yp_prot.h>
#include <rpcsvc/ypclnt.h>

extern int _yplib_timeout;

int
yp_master(indomain, inmap, outname)
	const char     *indomain;
	const char     *inmap;
	char          **outname;
{
	struct dom_binding *ysd;
	struct ypresp_master yprm;
	struct ypreq_nokey yprnk;
	struct timeval  tv;
	int             r;

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

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

	yprnk.domain = indomain;
	yprnk.map = inmap;

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

	r = clnt_call(ysd->dom_client, YPPROC_MASTER,
		      xdr_ypreq_nokey, &yprnk, xdr_ypresp_master, &yprm, tv);
	if (r != RPC_SUCCESS) {
		clnt_perror(ysd->dom_client, "yp_master: clnt_call");
		ysd->dom_vers = -1;
		goto again;
	}
	if (!(r = ypprot_err(yprm.status))) {
		if ((*outname = strdup(yprm.master)) == NULL)
			r = RPC_SYSTEMERROR;
	}
	xdr_free(xdr_ypresp_master, (char *) &yprm);
	_yp_unbind(ysd);
	return r;
}