| The Android Open Source Project | a27d2ba | 2008-10-21 07:00:00 -0700 | [diff] [blame^] | 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 |