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/* $OpenBSD: yp_master.c,v 1.9 2015/01/16 16:48:51 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_master(const char *indomain, const char *inmap, char **outname)
{
struct dom_binding *ysd;
struct ypresp_master yprm;
struct ypreq_nokey yprnk;
struct timeval tv;
int tries = 0, r;
if (indomain == NULL || *indomain == '\0' ||
strlen(indomain) > YPMAXDOMAIN || inmap == NULL ||
*inmap == '\0' || strlen(inmap) > YPMAXMAP || outname == 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(&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) {
if (tries++)
clnt_perror(ysd->dom_client, "yp_master: clnt_call");
ysd->dom_vers = -1;
goto again;
}
if (!(r = ypprot_err(yprm.stat))) {
if ((*outname = strdup(yprm.peer)) == NULL)
r = YPERR_RESRC;
}
xdr_free(xdr_ypresp_master, (char *) &yprm);
_yp_unbind(ysd);
return r;
}
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