99 lines
3.0 KiB
C
99 lines
3.0 KiB
C
/* $NetBSD: yp_master.c,v 1.16 2024/01/03 18:41:53 christos Exp $ */
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/*
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* Copyright (c) 1992, 1993 Theo de Raadt <deraadt@fsa.ca>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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__RCSID("$NetBSD: yp_master.c,v 1.16 2024/01/03 18:41:53 christos Exp $");
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#endif
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#include "namespace.h"
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#include <string.h>
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#include <stdlib.h>
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#include <rpc/rpc.h>
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#include <rpcsvc/yp_prot.h>
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#include <rpcsvc/ypclnt.h>
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#include "local.h"
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#ifdef __weak_alias
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__weak_alias(yp_master,_yp_master)
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#endif
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int
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yp_master(const char *indomain, const char *inmap, char **outname)
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{
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struct dom_binding *ysd;
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struct ypresp_master yprm;
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struct ypreq_nokey yprnk;
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int r, nerrs = 0;
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if (outname == NULL)
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return YPERR_BADARGS;
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*outname = NULL;
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if (_yp_invalid_domain(indomain))
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return YPERR_BADARGS;
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if (inmap == NULL || *inmap == '\0'
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|| strlen(inmap) > YPMAXMAP)
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return YPERR_BADARGS;
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again:
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if (_yp_dobind(indomain, &ysd) != 0)
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return YPERR_DOMAIN;
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yprnk.domain = indomain;
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yprnk.map = inmap;
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(void)memset(&yprm, 0, sizeof yprm);
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r = clnt_call(ysd->dom_client, (rpcproc_t)YPPROC_MASTER,
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(xdrproc_t)xdr_ypreq_nokey, &yprnk,
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(xdrproc_t)xdr_ypresp_master, &yprm, _yplib_timeout);
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if (r != RPC_SUCCESS) {
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if (_yplib_bindtries <= 0 && ++nerrs == _yplib_nerrs) {
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clnt_perror(ysd->dom_client, "yp_master: clnt_call");
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nerrs = 0;
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} else if (_yplib_bindtries > 0 && ++nerrs == _yplib_bindtries)
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return YPERR_YPSERV;
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ysd->dom_vers = -1;
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goto again;
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}
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if (!(r = ypprot_err(yprm.status))) {
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if ((*outname = strdup(yprm.master)) == NULL)
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r = YPERR_RESRC;
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}
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xdr_free((xdrproc_t)xdr_ypresp_master, (char *)(void *)&yprm);
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__yp_unbind(ysd);
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if (r != 0) {
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if (*outname) {
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free(*outname);
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*outname = NULL;
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}
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}
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return r;
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}
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