![]() |
CalculateChecksum() |
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
| Protected Function |
Declared in: SpoofSocket.h |
Declaration
unsigned short CalculateChecksum(
const unsigned short* usBuf,
int iSize) const;
DescriptionCalculate the data checksum
Function Body
try
{
unsigned long usChksum=0;
//Calculate the checksum
while (iSize>1)
{
usChksum+=*usBuf++;
iSize-=sizeof(unsigned short);
}
//If we have one char left
if (iSize)
usChksum+=*(unsigned char*)usBuf;
//Complete the calculations
usChksum=(usChksum >> 16) + (usChksum & 0xffff);
usChksum+=(usChksum >> 16);
//Return the value (inversed)
return (unsigned short)(~usChksum);
}
ERROR_HANDLER_RETURN("CalculateChecksum",0)
See Also
This web site was generated
using Surveyor V4.50.811.1. Click
here
for more information. |
Site content copyright © 2001 Barak Weichselbaum. See the About page for additional notices. This page last updated: 27 Jun 2001. |