/*+**********************************************************************
 * File name    :  dns.h
 * Title        :  Main Header file for httpd
 * Project      :  SW INFRASTRUCTURE
 * Date created :  15 OCT 1997
 * Revision     :  Rev 1.0
 * Author       :  Nir Ben-Yosef
 *
 *
 *-*********************************************************************/
 #ifndef _DNS_H
 #define _DNS_H

#include "http_util.h"


#define DNS_PORT                53
#define DNS_TASK_PRIORITY       100
#define DNS_STACK_SIZE          4096*8


/* The default string lengths */

#define MAX_STRING_LEN          HUGE_STRING_LEN
#define HUGE_STRING_LEN         2048
#define LITTLE_STRING_LEN       128
#define VERY_LITTLE_STRING_LEN  16

/* The timeout for waiting for messages */

#define DEFAULT_TIMEOUT         300

/* The timeout for waiting for keepalive timeout until next request */

#define DEFAULT_KEEPALIVE_TIMEOUT 15

/* The number of requests to entertain per connection */

#define DEFAULT_KEEPALIVE       100

/* The number of concurrent Http Tasks */

#define MAX_SESSIONS             2

#define OK 0			/* Module has handled this stage. */

typedef   unsigned short int WORD;
typedef   unsigned int       DWORD;
typedef   unsigned char      BYTE;


#define DNS_ANSWER_SIZE              16
#define DNS_RESPONSE_DATA_LENGTH     0x0004
#define SIZE_OF_WORD                 2
#define OK_RESPONSE_FLAGS            0x8500
#define ERROR_RESPONSE_FLAGS         0x8503
#define RESPONE_CLASS_INTERNET       0x0001
#define RESPONE_TYPE_A               0x0001
#define RESPONSE_TTL                 0x00015180
#define RESPONSE_DOMAIN_NAME_PTR     0xc00c


#define ATTRIB_PACKED __attribute__ ((packed))

#pragma align 1
typedef struct
{
    WORD               identification             ATTRIB_PACKED;
    WORD               flags                      ATTRIB_PACKED;
    WORD               number_of_questions        ATTRIB_PACKED;
    WORD               number_of_answers_rr       ATTRIB_PACKED;
    WORD               number_of_aturity_rr       ATTRIB_PACKED;
    WORD               number_of_additional_rr    ATTRIB_PACKED;
}DNS_MSG_HEADER_STRUCT;
#pragma align 0

#endif