On Wed, Feb 22, 2012 at 06:26, Alexander Vasiliev wrote:

I use FreeBsd and get the following error during execution. "mvz_server: getAddrInfo: does not exist (servname not supported for ai_socktype)"

(...)

I googled that this error was solved in ghc 6.8. But i use ghc 7.0.3. Can anyone help me?

What was solved in 6.8 was that IPv6 wasn't supported properly by GHC's network library. What you're tripping over now appears to be that you're trying to bind a hostname that returns an IPv6 address to an IPv4 socket, or vice versa. Note that FreeBSD handles IPv4 vs. IPv6 differently from Windows and Linux, and is probably not well tested with the GHC libraries. It is not impossible that there is a lingering bug. -- brandon s allbery allbery.b@gmail.com wandering unix systems administrator (available) (412) 475-9364 vm/sms

I suppose you need to specify addrSocketType (usually Stream or Datagram) for defaultHints. Although it seems it is not required on recent versions of FreeBSD (>= 8.x?), I think it is better to specify addrSocketType always. # sorry, I forgot CC to haskell-cafe. On Wed, Feb 22, 2012 at 8:26 PM, Alexander Vasiliev wrote:

Hi.

I use FreeBsd and get the following error during execution. "mvz_server: getAddrInfo: does not exist (servname not supported for ai_socktype)"

System: FreeBsd 7.1; amd64. Haskell: ghc-7.0.3; network-2.3.0.5.

The programm works well on Ubuntu and on Windows XP. The piece of code is:

bindit :: String -> ServData -> IO() bindit port sd@(mvzs, clnts) = withSocketsDo $     do       addrinfos <- getAddrInfo                    (Just (defaultHints {addrFlags = [AI_PASSIVE]}))                    Nothing (Just port)

I googled that this error was solved in ghc 6.8. But i use ghc 7.0.3. Can anyone help me?

Best Regards, Alexander

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