1/* 2 * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_LICENSE_HEADER_START@ 5 * 6 * Portions Copyright (c) 1999 Apple Computer, Inc. All Rights 7 * Reserved. This file contains Original Code and/or Modifications of 8 * Original Code as defined in and that are subject to the Apple Public 9 * Source License Version 1.1 (the "License"). You may not use this file 10 * except in compliance with the License. Please obtain a copy of the 11 * License at http://www.apple.com/publicsource and read it before using 12 * this file. 13 * 14 * The Original Code and all software distributed under the License are 15 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER 16 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 17 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT. Please see the 19 * License for the specific language governing rights and limitations 20 * under the License. 21 * 22 * @APPLE_LICENSE_HEADER_END@ 23 */ 24/* 25 * Copyright (c) 1992, 1993 Theo de Raadt <deraadt@theos.com> 26 * All rights reserved. 27 * 28 * Redistribution and use in source and binary forms, with or without 29 * modification, are permitted provided that the following conditions 30 * are met: 31 * 1. Redistributions of source code must retain the above copyright 32 * notice, this list of conditions and the following disclaimer. 33 * 2. Redistributions in binary form must reproduce the above copyright 34 * notice, this list of conditions and the following disclaimer in the 35 * documentation and/or other materials provided with the distribution. 36 * 3. All advertising materials mentioning features or use of this software 37 * must display the following acknowledgement: 38 * This product includes software developed by Theo de Raadt. 39 * 4. The name of the author may not be used to endorse or promote products 40 * derived from this software without specific prior written permission. 41 * 42 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 43 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 44 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 45 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 46 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 47 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 48 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 49 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 50 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 51 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 52 * SUCH DAMAGE. 53 */ 54 55#if defined(LIBC_SCCS) && !defined(lint) 56static char *rcsid = "$OpenBSD: yp_master.c,v 1.5 1996/12/03 08:20:05 deraadt Exp $"; 57#endif /* LIBC_SCCS and not lint */ 58 59#include <sys/param.h> 60#include <sys/types.h> 61#include <sys/socket.h> 62#include <sys/file.h> 63#include <sys/uio.h> 64#include <errno.h> 65#include <stdio.h> 66#include <stdlib.h> 67#include <string.h> 68#include <unistd.h> 69#include <rpc/rpc.h> 70#include <rpc/xdr.h> 71#include <rpcsvc/yp.h> 72#include <rpcsvc/ypclnt.h> 73#include "ypinternal.h" 74 75int 76yp_master(indomain, inmap, outname) 77 const char *indomain; 78 const char *inmap; 79 char **outname; 80{ 81 struct dom_binding *ysd; 82 struct ypresp_master yprm; 83 struct ypreq_nokey yprnk; 84 struct timeval tv; 85 int tries = 0, r; 86 static int proto = YP_BIND_UDP; 87 88 if (indomain == NULL || *indomain == '\0' || 89 strlen(indomain) > YPMAXDOMAIN || inmap == NULL || 90 *inmap == '\0' || strlen(inmap) > YPMAXMAP || outname == NULL) 91 return YPERR_BADARGS; 92 93again: 94 if (_yp_dobind(indomain, &ysd) != 0) 95 return YPERR_DOMAIN; 96 97 tv.tv_sec = _yplib_timeout; 98 tv.tv_usec = 0; 99 100 yprnk.domain = (char *)indomain; 101 yprnk.map = (char *)inmap; 102 103 (void)memset(&yprm, 0, sizeof yprm); 104 105 r = clnt_call(ysd->dom_client, YPPROC_MASTER, (xdrproc_t)xdr_ypreq_nokey, &yprnk, (xdrproc_t)xdr_ypresp_master, &yprm, tv); 106 if (r != RPC_SUCCESS) 107 { 108 if (tries++) clnt_perror(ysd->dom_client, "yp_master: clnt_call"); 109 110 if (proto == YP_BIND_UDP) proto = YP_BIND_TCP; 111 else proto = YP_BIND_UDP; 112 ysd->dom_vers = proto; 113 114 goto again; 115 } 116 117 if (!(r = ypprot_err(yprm.stat))) { 118 if ((*outname = strdup(yprm.peer)) == NULL) 119 r = YPERR_RESRC; 120 } 121 xdr_free((xdrproc_t)xdr_ypresp_master, (char *) &yprm); 122 _yp_unbind(ysd); 123 return r; 124} 125