Socket library ghc 5.02.1
Mon, 26 Nov 2001 12:30:47 -0800
"Sven Eric Panitz" <firstname.lastname@example.org> writes:
> It seems that the Socket library does still not work
> with ghc 5.02.1.
> I tried the simple test:
> > main =
> > do
> > d <- connectTo "localhost" (PortNumber 80)
> > hPutStr d "GET / HTTP/1.0\n\n"
> > hFlush d
> > c <- hGetContents d
> > putStr c
> On Windows2000 I get the known error:
> *** Exception: does not exist
> Action: getProtocolByName
> Reason: no such protocol entry
(You, of course, need to wrap up that code with Socket.withSocketDo
to start up WinSock first).
FYI, in case you're planning on doing socket programming with GHC-5.02
on a Win32 platform, stay away from using the higher-level Socket module,
since its IO.Handle based view of sockets is just broken. Stick with the
lower-level SocketPrim interface instead.
Specifically, stay away from using the following:
* Socket. connectTo
* Socket. recvFrom