resolv.h

這是一個實時嵌入式作業系統 實作了MCS51 ARM等MCU

/* resolv.h
 * DNS resolver code header file.
 * Authtor Adam Dunkels <[e-mail]>
 *
 * Copyright (c) 2002-2003, Adam Dunkels.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 * 3. The name of the author may not be used to endorse or promote
 *    products derived from this software without specific prior
 *    written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 __UIP_RESOLV_H__
#define __UIP_RESOLV_H__

#include <sys/types.h>
#include <net/uip/uipopt.h>

#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C" {
#else
#define EXTERN extern
#endif

/* Functions. */

EXTERN int resolv_init(void);

#ifdef CONFIG_NET_IPv6
EXTERN void resolv_conf(const struct in6_addr *dnsserver);
EXTERN void resolv_getserver(const struct in_addr *dnsserver);
EXTERN int  resolv_query(const char *name, struct sockaddr_in6 *addr);
#else
EXTERN void resolv_conf(const struct in_addr *dnsserver);
EXTERN void resolv_getserver(struct in_addr *dnsserver);
EXTERN int  resolv_query(const char *name, struct sockaddr_in *addr);
#endif

#undef EXTERN
#if defined(__cplusplus)
}
#endif

#endif /* __UIP_RESOLV_H__ */