bionic/libc/include/resolv.h
Mattias Falk 23d3e6b21b Add support for a dns cache per interface
Initial commit for dns cache per interface.
Added a type that holds a reference to a
cache and name of associated interface,
address of interface, name server(s)
associated with an interface etc.

New functions to set default interface,
address of name servers etc.

Change-Id: Ie991bc5592fd998409853d8bf77d7fe69035dac5
2011-06-08 15:39:29 +02:00

71 lines
2.5 KiB
C

/*
* Copyright (C) 2008 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _RESOLV_H_
#define _RESOLV_H_
#include <sys/param.h>
#include <sys/types.h>
#include <sys/cdefs.h>
#include <sys/socket.h>
#include <stdio.h>
#include <arpa/nameser.h>
#include <netinet/in.h>
__BEGIN_DECLS
struct res_state;
extern struct __res_state *__res_state(void);
#define _res (*__res_state())
/* Base-64 functions - because some code expects it there */
#define b64_ntop __b64_ntop
#define b64_pton __b64_pton
extern int b64_ntop(u_char const *, size_t, char *, size_t);
extern int b64_pton(char const *, u_char *, size_t);
/* Set name of default interface */
extern void _resolv_set_default_iface(const char* ifname);
/* set name servers for an interface */
extern void _resolv_set_nameservers_for_iface(const char* ifname, char** servers, int numservers);
/* tell resolver of the address of an interface */
extern void _resolv_set_addr_of_iface(const char* ifname, struct in_addr* addr);
/* flush the cache associated with the default interface */
extern void _resolv_flush_cache_for_default_iface();
/* flush the cache associated with a certain interface */
extern void _resolv_flush_cache_for_iface(const char* ifname);
__END_DECLS
#endif /* _RESOLV_H_ */