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TFTP_Packet Class Reference

#include <TFTP_Packet.hpp>

List of all members.

Public Methods

 TFTP_Packet ()
__inline void setOpCode (enum OpCode_t op)
__inline short getOpCode ()
void create_RRQ_WRQ ()
__inline void sendRRQ ()
__inline void sendWRQ ()
void createData (short blockNo, char *data, size_t sz)
__inline void createData (const char *rawData, size_t sz)
__inline void sendData (short blockNo, char *data, size_t sz)
__inline void send ()
void createAck (short blockNo)
void sendAck (short blockNo)
void createError (enum TFTP_errcode_t e, const char *errmsg="")
__inline void sendError (enum TFTP_errcode_t e, const char *errmsg="")
__inline char * getErrorMsg ()
void createOAck ()
__inline void sendOAck ()
__inline double getTimeStamp ()
__inline void setTimeStamp (double t)
__inline double getID ()
__inline char * getData ()
short getBlockNo ()
__inline size_t getpktLength ()

Public Attributes

char * pkt
size_t pktLength
char * errorMsg
double timestamp
short resent

Private Attributes

short opCode
short block
short err

Constructor & Destructor Documentation

TFTP_Packet::TFTP_Packet (    ) 
 

Definition at line 7 of file TFTP_Packet.cpp.

00008  : pkt( NULL ), pktLength( 0 ) {  }

Member Function Documentation

void TFTP_Packet::createAck (  short    blockNo ) 
 

Definition at line 96 of file TFTP_Packet.cpp.

Referenced by sendAck(). 

00097    {
00098       opCode = 4;
00099       block  = blockNo;
00100 
00101       pktLength = 2 + 2;     
00102       pkt       = new char[ pktLength ];
00103 
00104       memcpy( pkt,     (char*)&opCode,  2 );
00105       memcpy( pkt + 2, (char*)&block,   2 );
00106    }

__inline void TFTP_Packet::createData (  const char *    rawData,
size_t    sz
) 
 

Definition at line 73 of file TFTP_Packet.cpp.

00074    {
00075       if ( pkt == NULL ) pkt = new char[ sz + 1 ];
00076       pktLength = sz;
00077       memcpy( pkt, rawData, sz );
00078    }

void TFTP_Packet::createData (  short    blockNo,
char *    data,
size_t    sz
) 
 

Definition at line 58 of file TFTP_Packet.cpp.

Referenced by DATA_driver(), DataFactory::createDataPacket(), DataFactory::dummyPacket(), and sendData(). 

00059    {
00060       opCode = 3;
00061       block  = blockNo;
00062 
00063       pktLength = 2 + 2 + sz;     
00064       pkt       = new char[ pktLength ];
00065 
00066       memcpy( pkt,     (char*)&opCode,  2 );
00067       memcpy( pkt + 2, (char*)&block,   2 );
00068       if ( sz > 0 ) {
00069          memcpy( pkt + 4, data,        sz );
00070       }
00071    }

void TFTP_Packet::createError (  enum TFTP_errcode_t    e,
const char *    errmsg = ""
) 
 

Definition at line 114 of file TFTP_Packet.cpp.

Referenced by sendError(). 

00115    {
00116       opCode = 5;
00117       err    = (short)e;
00118 
00119       if ( errorMsg != NULL ) delete [] errorMsg;
00120       errorMsg = new char[ 200 ];
00121      
00122       memset( errorMsg, 0, 200 );
00123 
00124       const char* s = TFTP_errmsg[ opCode ];
00125       size_t len2 = strlen( s );
00126 
00127       size_t len = strlen( errmsg );
00128       memcpy( errorMsg, errmsg, len );
00129       errorMsg[ len ] = '\n';
00130       memcpy( errorMsg+len+1, s, len2 );
00131 
00132       size_t sz = len + len2 + 1;
00133       errorMsg[ sz ] = '\0';
00134       
00135       pktLength = 2 + 2 + sz;     
00136       pkt = new char[ pktLength ];
00137 
00138       memcpy( pkt,     (char*)&opCode,   2 );
00139       memcpy( pkt + 2, (char*)&err,      2 );
00140       memcpy( pkt + 4, (char*)errorMsg, sz );
00141    }

void TFTP_Packet::createOAck (    ) 
 

Definition at line 154 of file TFTP_Packet.cpp.

Referenced by sendOAck(). 

00155    {
00156       opCode = 6;
00157 
00158       option.rwlock3_templates.read();
00159 
00160       size_t opt = option.Option_templateLength - 2;
00161  
00162       pktLength = opt + 2;
00163       pkt = new char[ pktLength ];
00164 
00165 
00166       // Copy the option, if they exist.
00167       if ( opt > 0 ) {
00168         memcpy( pkt, option.Option_template + 2, opt );
00169       }
00170  
00171       memcpy( pkt, (char*)&opCode,  2 );
00172       
00173       option.rwlock3_templates.releaseRead();
00174    }

void TFTP_Packet::create_RRQ_WRQ (    ) 
 

Definition at line 20 of file TFTP_Packet.cpp.

Referenced by sendRRQ(), and sendWRQ(). 

00021   {
00022      option.rwlock3_templates.read();
00023 
00024      long opt = option.Option_templateLength - 2;
00025      size_t sz  = option.RRQ_WRQ_templateLength;
00026 
00027      if ( opt <= 0 ) opt = 0;
00028      pktLength  = sz + opt;
00029      pkt        = new char[ pktLength ];
00030 
00031      memcpy( pkt, option.RRQ_WRQ_template, sz );    // Copy the RRQ Template
00032      memcpy( pkt, (char*)&opCode, 2 );              // Overwrite the opcode part
00033    
00034 
00035      // Copy the option, if they exist.
00036      if ( opt > 0 ) {
00037        memcpy( pkt + sz, option.Option_template + 2, opt );
00038      }
00039      
00040      option.rwlock3_templates.releaseRead(); 
00041   }

short TFTP_Packet::getBlockNo (    ) 
 

Definition at line 199 of file TFTP_Packet.cpp.

Referenced by FileFactory::validPacket(). 

00199                                  {
00200       short val;
00201       memcpy( (char*)(&val), (pkt+2), 2 );
00202 
00203       return val;
00204    }

__inline char * TFTP_Packet::getData (    ) 
 

Definition at line 195 of file TFTP_Packet.cpp.

Referenced by FileFactory::validPacket(). 

00195                                      {
00196       return (char*)( pkt + 4 );
00197    }

__inline char * TFTP_Packet::getErrorMsg (    ) 
 

Definition at line 149 of file TFTP_Packet.cpp.

00150    {
00151       return errorMsg;
00152    }

__inline double TFTP_Packet::getID (    ) 
 

Definition at line 187 of file TFTP_Packet.cpp.

00187                                     {
00188       return block;
00189    }

__inline short TFTP_Packet::getOpCode (    ) 
 

Definition at line 16 of file TFTP_Packet.cpp.

00016                                       {
00017      return opCode; 
00018   }

__inline double TFTP_Packet::getTimeStamp (    ) 
 

Definition at line 183 of file TFTP_Packet.cpp.

00183                                            {
00184       return timestamp;
00185    }

__inline size_t TFTP_Packet::getpktLength (    ) 
 

Definition at line 206 of file TFTP_Packet.cpp.

Referenced by FileFactory::validPacket(). 

00206                                            {
00207       return pktLength;
00208    }

__inline void TFTP_Packet::send (    ) 
 

Definition at line 91 of file TFTP_Packet.cpp.

Referenced by TFTP_Sender::sendData(), and TFTP_Timeout::timedRun(). 

00091                                  {
00092      printf( "Sending Data: %d, %u", pkt, pktLength );
00093      option.sender->send( pkt, pktLength );
00094    }

__inline void TFTP_Packet::sendAck (  short    blockNo ) 
 

Definition at line 108 of file TFTP_Packet.cpp.

Referenced by DATA_driver(), OACK_driver(), and WRQ_driver(). 

00109    {
00110       createAck( blockNo );
00111       option.sender->send( pkt, pktLength );   
00112    }

__inline void TFTP_Packet::sendData (  short    blockNo,
char *    data,
size_t    sz
) 
 

Definition at line 80 of file TFTP_Packet.cpp.

00081    {
00082       if ( sz > 0 ) {
00083         createData( blockNo, data, sz );
00084         pktLength = 4 + sz;
00085       } else {
00086         pktLength = 4;
00087       }
00088       option.sender->send( pkt, pktLength );  
00089    }

__inline void TFTP_Packet::sendError (  enum TFTP_errcode_t    e,
const char *    errmsg = ""
) 
 

Definition at line 143 of file TFTP_Packet.cpp.

Referenced by TFTP_AccessViolationErrorHandler(), TFTP_DiskFullErrorHandler(), TFTP_FileAlreadyExistErrorHandler(), TFTP_FileNotFoundErrorHandler(), TFTP_IllegalOpErrorHandler(), TFTP_NoSuchUserErrorHandler(), and TFTP_NotDefinedErrorHandler(). 

00144    {
00145       createError( e, errmsg );
00146       option.sender->send( pkt, pktLength );
00147    }

__inline void TFTP_Packet::sendOAck (    ) 
 

Definition at line 176 of file TFTP_Packet.cpp.

Referenced by RRQ_driver(), and WRQ_driver(). 

00177    {
00178       createOAck();
00179       option.sender->send(pkt,pktLength);        
00180    }

__inline void TFTP_Packet::sendRRQ (    ) 
 

Definition at line 43 of file TFTP_Packet.cpp.

Referenced by TFTP::read(). 

00044   {
00045      opCode = 1;
00046      create_RRQ_WRQ();
00047      option.sender->send( pkt, pktLength );
00048   }

__inline void TFTP_Packet::sendWRQ (    ) 
 

Definition at line 50 of file TFTP_Packet.cpp.

Referenced by TFTP::write(). 

00051   {
00052      opCode = 2;
00053      create_RRQ_WRQ();
00054      option.sender->send( pkt, pktLength );
00055   }

__inline void TFTP_Packet::setOpCode (  enum OpCode_t    op ) 
 

Definition at line 11 of file TFTP_Packet.cpp.

00011                                                        {
00012      opCode = (short)op;
00013   }

__inline void TFTP_Packet::setTimeStamp (  double    t ) 
 

Definition at line 191 of file TFTP_Packet.cpp.

Referenced by TFTP_Sender::sendData(), and TFTP_Timeout::timedRun(). 

00191                                                    {
00192       timestamp = ceil( t );
00193    }

Member Data Documentation

short TFTP_Packet::block [private]
 

Definition at line 52 of file TFTP_Packet.hpp.

short TFTP_Packet::err [private]
 

Definition at line 53 of file TFTP_Packet.hpp.

char* TFTP_Packet::errorMsg
 

Definition at line 59 of file TFTP_Packet.hpp.

short TFTP_Packet::opCode [private]
 

Definition at line 51 of file TFTP_Packet.hpp.

char* TFTP_Packet::pkt
 

Definition at line 56 of file TFTP_Packet.hpp.

size_t TFTP_Packet::pktLength
 

Definition at line 57 of file TFTP_Packet.hpp.

short TFTP_Packet::resent
 

Definition at line 63 of file TFTP_Packet.hpp.

Referenced by TFTP_Sender::sendData(), and TFTP_Timeout::timedRun().

double TFTP_Packet::timestamp
 

Definition at line 60 of file TFTP_Packet.hpp.

The documentation for this class was generated from the following files:
Generated on Sun Oct 14 18:50:07 2001 for Standard J2K Library by doxygen1.2.11.1 written by Dimitri van Heesch, © 1997-2001