1 /* $NetBSD: res_compat.c,v 1.1 2004/06/09 18:07:03 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2004 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Christos Zoulas. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 #if defined(LIBC_SCCS) && !defined(lint) 41 __RCSID("$NetBSD: res_compat.c,v 1.1 2004/06/09 18:07:03 christos Exp $"); 42 #endif 43 44 #include <sys/types.h> 45 #include <arpa/inet.h> 46 #include "arpa_nameser.h" 47 #include <netdb.h> 48 #include <string.h> 49 #define __OLD_RES_STATE 50 #ifdef ANDROID_CHANGES 51 #include "resolv_private.h" 52 #else 53 #include "resolv.h" 54 #endif 55 56 #undef _res 57 58 /* 59 * Binary Compatibility; this symbol does not appear in a header file 60 * Most userland programs use this to set res_options before res_init() 61 * is called. There are hooks to res_init() to consult the data in this 62 * structure. The hooks are provided indirectly by the two functions below. 63 * We depend on the fact the the first 440 [32 bit machines] bytes are 64 * shared between the two structures. 65 */ 66 #ifndef __BIND_NOSTATIC 67 struct __res_state _res 68 #if defined(__BIND_RES_TEXT) 69 = { RES_TIMEOUT, } /* Motorola, et al. */ 70 # endif 71 ; 72 73 void *__res_get_old_state(void); 74 void __res_put_old_state(void *); 75 76 void * 77 __res_get_old_state(void) 78 { 79 return &_res; 80 } 81 82 void 83 __res_put_old_state(void *res) 84 { 85 (void)memcpy(&_res, res, sizeof(_res)); 86 } 87 #endif 88
