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C:/temp/src/j2k/Net/TFTP/TFTP_Parser.hpp

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/*

NOTICE:  Block Number ARE ALWAYS FROM 1...WindowSize

Block Number 0 means we STARTED !

Someone must call this guy... Client/Server UDP... Done!

*/

#ifndef __J2K__TFTP_Parser_HPP__
#define __J2K__TFTP_Parser_HPP__

#include <j2k/Fred/Standard.hpp>
#include <j2k/Fred/String/Str-fn.hpp>

#include <j2k/Net/TFTP/TFTP_header.hpp>
#include <j2k/Net/TFTP/TFTP_Option.hpp>
#include <j2k/Net/TFTP/TFTP_OptionSaved.hpp>
#include <j2k/Net/TFTP/TFTP_DataAck.hpp>

class TFTP_Parser;
typedef void ( TFTP_Parser::*TFTP_ParserCallback )( char*, int ); 

class TFTP_Parser
{
public:

         TFTP_Parser();
virtual ~TFTP_Parser();

/***************************************************************************
 s = packet->pkt
 ***************************************************************************
 ***************************************************************************/

      void  parseOptions( char* str, size_t  length, size_t  offset );
      char* scanParam(    char* str, size_t* len    );
      void  getParams(    char* str, size_t  offset );

// Return 0, if the param has no associated value
// Return 1, if the next param is taken as a value
int select( int i );

// Static functions and array of function table
#include <j2k/Net/TFTP/TFTP_ParserStatic.hpp>

// if not set, set default in TFTP_Option.
private:
  BOOL    OACK_arg;

  int   blocksizeDefault;
  int  windowsizeDefault;
  int     timeoutDefault;

  size_t  expectedBlockSize;

  TFTP_ParserCallback* opTable;

  char*   array[12];
  size_t  array_sz;
};

#endif

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