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ConstructTCPHeader() |
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| Protected Function |
Declared in: TCPSocket.h |
Declaration
virtual LPTCPHeader ConstructTCPHeader(
int iSourcePort,
int iDestinationPort,
int iHeaderLength) const;
DescriptionCreate the TCP header
Function Body
try
{
//Construct the header
LPTCPHeader lpHead=new _TCPHeader;
//Set source and destination port
lpHead->SourcePort=htons(iSourcePort);
lpHead->DestinationPort=htons(iDestinationPort);
//No checksums yet
lpHead->Checksum=0;
//Set windows to 3.0k
lpHead->Windows=htons(512);
//Set the packet number
lpHead->AcknowledgeNumber=0;
//And the sequence
lpHead->SequenceNumber=htonl(m_Sequence++);
//Data offset
lpHead->DataOffset=(iHeaderLength/4) << 4;
//Flags
lpHead->Flags=0;
//Urgent pointer
lpHead->UrgentPointer=0;
//Return it to the user
return lpHead;
}
ERROR_HANDLER_RETURN("ConstructTCPHeader",NULL)
See Also
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Site content copyright © 2001 Barak Weichselbaum. See the About page for additional notices. This page last updated: 27 Jun 2001. |