#2 libax25: Support for binary telnet sessions

[Řyvind Hanssen]

I modified ax25io.c and ax25io.h to allow binary telnet
sessions (some need the full 8-bit character set). Added
the function axio_tn_do_8bit to activate this option.

I also had to change the handling of end-of-line character
(or CRLF sequences), since a telnet client in binary mode
does not necessarily send a CRLF sequence like
standard telnet sessions.

Im not sure if I understand the telnet negotiation correctly
but the patch seem to work ok for me.

[Řyvind Hanssen]

[Řyvind Hanssen]

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Here is the correct patchfile. 73 de LA7ECA.

[Řyvind Hanssen]

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[thomas osterried]

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unfortunately, this patch does not apply anymore to the
current version of ax25io.{c,h}