The Tor Browser / file comparison
comparison: other-licenses/android/resolv_cache.h
other-licenses/android/resolv_cache.h
- changeset 0
- 6474c204b198
equal
deleted
inserted
replaced
| -1:000000000000 | 0:f317631d312b |
|---|---|
| 1 /* | |
| 2 * Copyright (C) 2008 The Android Open Source Project | |
| 3 * All rights reserved. | |
| 4 * | |
| 5 * Redistribution and use in source and binary forms, with or without | |
| 6 * modification, are permitted provided that the following conditions | |
| 7 * are met: | |
| 8 * * Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * * Redistributions in binary form must reproduce the above copyright | |
| 11 * notice, this list of conditions and the following disclaimer in | |
| 12 * the documentation and/or other materials provided with the | |
| 13 * distribution. | |
| 14 * | |
| 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | |
| 18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | |
| 19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | |
| 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | |
| 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS | |
| 22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED | |
| 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | |
| 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT | |
| 25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 26 * SUCH DAMAGE. | |
| 27 */ | |
| 28 | |
| 29 /* | |
| 30 * This version of this file is derived from Android 2.3 "Gingerbread", | |
| 31 * which contains uncredited changes by Android/Google developers. It has | |
| 32 * been modified in 2011 for use in the Android build of Mozilla Firefox by | |
| 33 * Mozilla contributors (including Michael Edwards <m.k.edwards@gmail.com>, | |
| 34 * and Steve Workman <sjhworkman@gmail.com>). | |
| 35 * These changes are offered under the same license as the original NetBSD | |
| 36 * file, whose copyright and license are unchanged above. | |
| 37 */ | |
| 38 | |
| 39 #ifndef _RESOLV_CACHE_H_ | |
| 40 #define _RESOLV_CACHE_H_ | |
| 41 | |
| 42 struct resolv_cache; /* forward */ | |
| 43 | |
| 44 /* get cache instance, can be NULL if cache is disabled | |
| 45 * (e.g. through an environment variable) */ | |
| 46 extern struct resolv_cache* __get_res_cache(void); | |
| 47 | |
| 48 /* this gets called everytime we detect some changes in the DNS configuration | |
| 49 * and will flush the cache */ | |
| 50 extern void _resolv_cache_reset( unsigned generation ); | |
| 51 | |
| 52 typedef enum { | |
| 53 RESOLV_CACHE_UNSUPPORTED, /* the cache can't handle that kind of queries */ | |
| 54 /* or the answer buffer is too small */ | |
| 55 RESOLV_CACHE_NOTFOUND, /* the cache doesn't know about this query */ | |
| 56 RESOLV_CACHE_FOUND /* the cache found the answer */ | |
| 57 } ResolvCacheStatus; | |
| 58 | |
| 59 extern ResolvCacheStatus | |
| 60 _resolv_cache_lookup( struct resolv_cache* cache, | |
| 61 const void* query, | |
| 62 int querylen, | |
| 63 void* answer, | |
| 64 int answersize, | |
| 65 int *answerlen ); | |
| 66 | |
| 67 /* add a (query,answer) to the cache, only call if _resolv_cache_lookup | |
| 68 * did return RESOLV_CACHE_NOTFOUND | |
| 69 */ | |
| 70 extern void | |
| 71 _resolv_cache_add( struct resolv_cache* cache, | |
| 72 const void* query, | |
| 73 int querylen, | |
| 74 const void* answer, | |
| 75 int answerlen ); | |
| 76 | |
| 77 #endif /* _RESOLV_CACHE_H_ */ |
