Client/server Bad value on output port 'tcp_inet'

Matthias Lang <>
Tue Feb 4 12:23:02 CET 2003

Lars H. Larsen, ICCC writes:

 > I'm using OTP R9-0 on a Win32 platform (winsock) W2K and XP

 > accsocket:send(#Port<0.119>,{[255,0,0,2]})
 > accsock:error Reasson einval

Chandru has already pointed out that you can't pass a tuple as the
second argument to gen_tcp:send/2. You're generating the tuple here:

 > 	{'GETACCTABLE'} ->
 > 		Data= {[255, 0, 0, 2]},

Looking through the module, it looks like it would be a bit clearer if
you used the binary syntax, e.g. instead of writing

 > accDecode([255, Length1, Length2, 1 | DataList]) ->
 > 	Length = (Length1 * 256) + Length2,

you could write

  accDecode(<<255, Length:16, 1, Data/binary>>)

N.b: the above is _not_ a list. See:


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