connectTo fails to fail
System is Linux, Red Hat 7.0. Ghc version 5.02. Problem with the connectTo function in package Socket. If the remote port to which connectTo is trying to connect is unavailable (i.e. no corresponding process is bound to that port), the connectTo function neither throws an exception nor issues a fatal error. The function simply returns an apparently OK handle (for which SocketPrim.isConnected also spuriously returns TRUE). Using this handle, with something such as hPutStr, results in a fatal error, logging the message "Broken pipe". Example problem at the end of this report. Apologies if I've gotten this completely wrong. Many thanks, Patrick. -------------------- import BSD import IO import Socket main :: IO () main = do hostname <- getHostName h <- connectTo hostname ((PortNumber . fromInteger) 9999) hPutStr h "Hello world"
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