Sockets

[David Kramer]

Anthony Gabrielson wrote, On 10/16/2004 08:59 PM:
> Hello,
> 	I'm looking for a sockets example that isn't an echo server...  
> I'm looking for an example that sends an interger, or a Struct, something 
> non char.  Does anyone have a link or advice?  

Just like saving an object in memory to a file, or any other stream, it must 
be serialized: flattened into a bytestream.  In the case of streams sent 
between different computers, you usually want to send the data in a way that 
will be platform-independent. That means if you want to send an int, you don't 
just send the int through, because the other side may have a different size 
int, or not be two's complement, or a different endianness, or whatever.  So 
it's common to send strings.

If you really want to send unserialized data, there's nothing stopping you. 
You'll notice that read() and write()  take a void*.  To send integers as 
integers, just pass a int* instead of a char*.  The rest of your code remains 
the same, and sizeof(int) for the third parameter.

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DDDD   David Kramer         david at thekramers.net       http://thekramers.net
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