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_first.c,v 1.5 1996/12/03 08:20:03 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_first(indomain, inmap, outkey, outkeylen, outval, outvallen) 77 const char *indomain; 78 const char *inmap; 79 char **outkey; 80 int *outkeylen; 81 char **outval; 82 int *outvallen; 83{ 84 struct ypresp_key_val yprkv; 85 struct ypreq_nokey yprnk; 86 struct dom_binding *ysd; 87 struct timeval tv; 88 int tries = 0, r; 89 static int proto = YP_BIND_UDP; 90 91 if (indomain == NULL || *indomain == '\0' || 92 strlen(indomain) > YPMAXDOMAIN || inmap == NULL || 93 *inmap == '\0' || strlen(inmap) > YPMAXMAP) 94 return YPERR_BADARGS; 95 96 *outkey = *outval = NULL; 97 *outkeylen = *outvallen = 0; 98 99again: 100 if (_yp_dobind(indomain, &ysd) != 0) 101 return YPERR_DOMAIN; 102 103 tv.tv_sec = _yplib_timeout; 104 tv.tv_usec = 0; 105 106 yprnk.domain = (char *)indomain; 107 yprnk.map = (char *)inmap; 108 (void)memset(&yprkv, 0, sizeof yprkv); 109 110 r = clnt_call(ysd->dom_client, YPPROC_FIRST, (xdrproc_t)xdr_ypreq_nokey, &yprnk, (xdrproc_t)xdr_ypresp_key_val, &yprkv, tv); 111 if (r != RPC_SUCCESS) 112 { 113 if (tries++) clnt_perror(ysd->dom_client, "yp_first: clnt_call"); 114 115 if (proto == YP_BIND_UDP) proto = YP_BIND_TCP; 116 else proto = YP_BIND_UDP; 117 ysd->dom_vers = proto; 118 119 goto again; 120 } 121 122 if (!(r = ypprot_err(yprkv.stat))) { 123 *outkeylen = yprkv.key.keydat_len; 124 if ((*outkey = malloc(*outkeylen + 1)) == NULL) 125 r = YPERR_RESRC; 126 else { 127 (void)memcpy(*outkey, yprkv.key.keydat_val, *outkeylen); 128 (*outkey)[*outkeylen] = '\0'; 129 } 130 *outvallen = yprkv.val.valdat_len; 131 if ((*outval = malloc(*outvallen + 1)) == NULL) 132 r = YPERR_RESRC; 133 else { 134 (void)memcpy(*outval, yprkv.val.valdat_val, *outvallen); 135 (*outval)[*outvallen] = '\0'; 136 } 137 } 138 xdr_free((xdrproc_t)xdr_ypresp_key_val, (char *) &yprkv); 139 _yp_unbind(ysd); 140 return r; 141} 142