#ifndef    _DNS_H_
#define    _DNS_H_

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "CH57x_common.h"
#include "net.h"

#define	MAX_URL_SIZE 			128
#define	MAX_DNS_BUF_SIZE    	256        		/*DNS缓冲区最大长度 */
#define	CH563NET_DBG     		1         		/* printf调试使能 */

#define SERVER_NAME_DNS    		"www.boonlive-rcu.com"
#define TFTPSERVER_NAME_DNS		"blv-tftp-log.blv-oa.com"		//"BoonliveNAS.synology.me"  
#define UDPSERVER_NAME_DNS		"rcu-udp-svr.blv-oa.com"

/*
********************************************************************************
Define Part
********************************************************************************
*/

#define    TYPE_A         1    /* Host address */
#define    TYPE_NS        2    /* Name server */
#define    TYPE_MD        3    /* Mail destination (obsolete) */
#define    TYPE_MF        4    /* Mail forwarder (obsolete) */
#define    TYPE_CNAME     5    /* Canonical name */
#define    TYPE_SOA       6    /* Start of Authority */
#define    TYPE_MB        7    /* Mailbox name (experimental) */
#define    TYPE_MG        8    /* Mail group member (experimental) */
#define    TYPE_MR        9    /* Mail rename name (experimental) */
#define    TYPE_NULL      10   /* Null (experimental) */
#define    TYPE_WKS       11   /* Well-known sockets */
#define    TYPE_PTR       12   /* Pointer record */
#define    TYPE_HINFO     13   /* Host information */
#define    TYPE_MINFO     14   /* Mailbox information (experimental)*/
#define    TYPE_MX        15   /* Mail exchanger */
#define    TYPE_TXT       16   /* Text strings */
#define    TYPE_ANY       255  /* Matches any type */

#define    CLASS_IN    1    /* The ARPA Internet */

typedef enum
{
	DNS_INIT,
	DNS_INIT1,
	DNS_DATA_SEND,
	DNS_WAIT_RECV,
	DNS_ANALYSIS,
	DNS_ClOSE,
}DNS_STA;

struct dhdr         
{             
    UINT16  id;         /* 标识 */
    UINT8   qr;         /* 查询或应答标志*/
    UINT8   opcode;
    UINT8   aa;         /* 授权回答 */
    UINT8   tc;         /* 可截断的 */
    UINT8   rd;         /* 期望递归*/
    UINT8   ra;         /* 可以递归 */
    UINT8   rcode;      /* 应答码 */
    UINT16  qdcount;    /* 问题数 */
    UINT16  ancount;    /* 应答数 */
    UINT16  nscount;    /* 授权数 */
    UINT16  arcount;    /* 额外记录数 */
};

//extern UINT8 dns_buf[MAX_DNS_BUF_SIZE];
extern UINT8* dns_buf;
extern UINT8 DNS_SERVER_IP[4];

UINT16 get16(UINT8 * s);

int ParseName(UINT8 * msg, UINT8 * compressed, char * buf);

UINT8 * DnsQuestion(UINT8 * msg, UINT8 * cp);

UINT8 * DnsAnswer(UINT8 * msg, UINT8 * cp, UINT8 * pSip);

UINT8 parseMSG(struct dhdr * pdhdr, UINT8 * pbuf, UINT8 * pSip);

UINT8 * put16(UINT8 * s, UINT16 i);

UINT16 MakeDnsQueryMsg(UINT16 op, char * name, UINT8 * buf, UINT16 len);

//UINT8 DnsQuery(UINT8 s, UINT8 * name, UINT8 * pSip);

//UINT8 DnsQuery(UINT8 s, UINT8 * name, UINT8 * pSip);

UINT8 DnsQuery2(UINT8* s, UINT8 * name, UINT8 * pSip);

void UDPSocketParamInit(UINT8 sockindex,UINT8 *addr,UINT16 SourPort,UINT16 DesPort);

UINT8 DnsQuery_Task(UINT8* s, UINT8 * name, UINT8 * pSip);

#endif