Thread: Big endian/Little endian conversion

In writing my first network app, I have hit a wall. That wall's name is Big endian.

I need a conversion routine to convert back and forth. Is there something builtin to MSVC6? If not, is there a magical bitwise shift routine I can use.

Also, I need a way of detecting when it needs to be converted, as my client will attatch to various hosts. Some Big endian and some Little endian.

Try

htonl() - little to big

ntohl() - Big to little.......

There's also a nifty ASM opcode called BSWAP which does this

I can't find those functions in MSVC6.

According to msdn CSocket handles this for you. News to me, since I derived from CSocket and am still having the problem.

Try winsock2.h

I am not having any luck. Here is my code:

Code:

void CTelnetSocket::OnReceive( int nErrorCode )
{
	char Buf[251];

	Receive(Buf,250);

	char *string=new char[255];

	ltoa((ntohl(atol(Buf))),string,10);
	ltoa((htonl(atol(Buf))),string,10);

	strcpy(m_bBuf,string);
	
	delete [] string;

	if(m_bBuf == "")
		return;

	ReadData=true;
 }

I keep getting NULL values in c.