System.Posix.User.getGroupEntryForName incorrect error for non-existent group
The following program:
import System.Posix.User
main :: IO ()
main = getGroupEntryForName "monkeys" >> return ()
gives the following output (on a system without a "monkeys" group):
*** Exception: getGroupEntryForName: failed (Success)
The "(Success)" part is obviously wrong.
The problem is that the getGroupEntryForName implementation throws errno if getgrnam_r wrote NULL to the pointer pointed to by its last parameter, while the getgrnam_r specification makes no guarantees about errno being set in that case.
Trac metadata
Trac field | Value |
---|---|
Version | 6.6.1 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | libraries/unix |
Test case | |
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