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00027 #ifndef _DNS_H
00028 #define _DNS_H
00029
00030 #define DNS_BUFFER_LENGHT 210
00031 #define DNS_SERVER_PORT 53
00032 #define DNS_NO_ANSWER 0xffffffff
00033 #define DNS_REQUEST_TIMEOUT 200 // in 1/100 sekunden
00034
00038
00039 #define CNAME 0x0005
00040 #define A_HOSTNAME 0x0001
00041
00042 unsigned long DNS_ResolveName( unsigned char * HOSTNAME );
00043 unsigned int DNS_convertHostName( unsigned char * HOSTNAME , unsigned char * Destbuffer );
00044
00045 #define DNS_HEADER_LENGHT 12
00046
00050 struct DNS {
00051 unsigned int TransactionID;
00052 unsigned int Flags;
00053 unsigned int Questions;
00054 unsigned int Answer_RRs;
00055 unsigned int Authority_RRs;
00056 unsigned int Additional_RRs;
00057 unsigned char Queries[];
00058 };
00059
00060 #define DNS_ANSWER_HEADER_LENGHT 12
00061
00065 struct DNS_answer {
00066 unsigned int Name;
00067 unsigned int Type;
00068 unsigned int IN;
00069 unsigned long TTL;
00070 unsigned int Datalenght;
00071 unsigned long Adress;
00072 };
00073
00074 #endif
00075