libc/include/resolv.h

/*
 * 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_ */