help on packet format for tcp/ip programming

[Grant Edwards]

On 2007-02-08, rattan at cps.cmich.edu <rattan at cps.cmich.edu> wrote:

> struct module pack and unpack will only work for fixed size buffer :
> pack('>1024sIL', buffer, count. offset) but the buffer size can vary
> from one packet to the next  :-(

Oh for Pete's sake...

struct.pack('>%dsIL' % len(buffer), buffer, count, offset)

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