#2250: unpackFamily on Windows 2008 fails match
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Reporter: larsv | Owner:
Type: bug | Status: new
Priority: normal | Milestone: Not GHC
Component: libraries/network | Version: 6.9
Severity: normal | Resolution:
Keywords: | Difficulty: Unknown
Testcase: | Architecture: x86
Os: Windows |
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Comment (by larsv):
I modified Network/BSD.hs to trace out the h_addrtype variable in Storable
HostEntry's peek, and it had the value 0x40002.
The corresponding variable in the C struct should be a short, but is
inferred to be CInt in the Haskell source, probably thanks to unpackFamily
having type CInt -> Family.
Due to that, it reads the family as an int, consuming the following length
field as well.
I hacked past this by giving the peek of h_addrtype an annotation of "::
IO CShort" and adding a fromIntegral at the call to unpackFamily to
convert it to the CInt that the unpackFamily function expects.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2250#comment:3>
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