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| author | Egor Tensin <Egor.Tensin@gmail.com> | 2017-06-10 04:20:20 +0300 |
|---|---|---|
| committer | Egor Tensin <Egor.Tensin@gmail.com> | 2017-06-10 04:20:20 +0300 |
| commit | 90f8fb1497324e42eaf4bcca4e1cfe0aeb6e5b54 (patch) | |
| tree | 705f50fad4a39f84f9104d359915a59d0e8726fc /src/WindowsEnv | |
| parent | paths: don't expand registry values (diff) | |
| download | windows-env-90f8fb1497324e42eaf4bcca4e1cfe0aeb6e5b54.tar.gz windows-env-90f8fb1497324e42eaf4bcca4e1cfe0aeb6e5b54.zip | |
refactoring
Diffstat (limited to '')
| -rw-r--r-- | src/WindowsEnv/Registry.hs | 29 |
1 files changed, 16 insertions, 13 deletions
diff --git a/src/WindowsEnv/Registry.hs b/src/WindowsEnv/Registry.hs index 6de1d4c..96a7627 100644 --- a/src/WindowsEnv/Registry.hs +++ b/src/WindowsEnv/Registry.hs @@ -114,11 +114,11 @@ data ValueType = TypeNone deriving (Eq, Show) instance Enum ValueType where - fromEnum = fromJust . flip lookup valueTypeTable - toEnum = fromJust . flip lookup (map swap valueTypeTable) + fromEnum = fromJust . flip lookup valueTypeNumbers + toEnum = fromJust . flip lookup (map swap valueTypeNumbers) -valueTypeTable :: [(ValueType, Int)] -valueTypeTable = +valueTypeNumbers :: [(ValueType, Int)] +valueTypeNumbers = [ (TypeNone, 0) , (TypeBinary, 3) , (TypeDWord, 4) @@ -202,11 +202,11 @@ data GetValueFlag = RestrictAny deriving (Eq, Show) instance Enum GetValueFlag where - fromEnum = fromJust . flip lookup getValueFlagsTable - toEnum = fromJust . flip lookup (map swap getValueFlagsTable) + fromEnum = fromJust . flip lookup getValueFlagNumbers + toEnum = fromJust . flip lookup (map swap getValueFlagNumbers) -getValueFlagsTable :: [(GetValueFlag, Int)] -getValueFlagsTable = +getValueFlagNumbers :: [(GetValueFlag, Int)] +getValueFlagNumbers = [ (RestrictAny, 0x0000ffff) , (RestrictNone, 0x00000001) , (RestrictBinary, 0x00000008) @@ -218,6 +218,9 @@ getValueFlagsTable = , (DoNotExpand, 0x10000000) ] +collapseGetValueFlags :: Num a => [GetValueFlag] -> a +collapseGetValueFlags = fromIntegral . foldr ((.|.) . fromEnum) 0 + getValue :: IsKeyPath a => a -> ValueName -> [GetValueFlag] -> ExceptT IOError IO ValueData getValue keyPath valueName flags = withHandle keyPath $ \keyHandle -> @@ -226,18 +229,18 @@ getValue keyPath valueName flags = alloca $ \valueSizePtr -> do poke valueSizePtr 0 WinAPI.failUnlessSuccess "RegGetValueW" $ - c_RegGetValue keyHandlePtr WinAPI.nullPtr valueNamePtr rawFlags WinAPI.nullPtr WinAPI.nullPtr valueSizePtr + c_RegGetValue keyHandlePtr WinAPI.nullPtr valueNamePtr collapsedFlags WinAPI.nullPtr WinAPI.nullPtr valueSizePtr bufferCapacity <- fromIntegral <$> peek valueSizePtr alloca $ \valueTypePtr -> allocaBytes bufferCapacity $ \bufferPtr -> do WinAPI.failUnlessSuccess "RegGetValueW" $ - c_RegGetValue keyHandlePtr WinAPI.nullPtr valueNamePtr rawFlags valueTypePtr bufferPtr valueSizePtr + c_RegGetValue keyHandlePtr WinAPI.nullPtr valueNamePtr collapsedFlags valueTypePtr bufferPtr valueSizePtr bufferSize <- fromIntegral <$> peek valueSizePtr buffer <- B.pack <$> peekArray bufferSize bufferPtr valueType <- toEnum . fromIntegral <$> peek valueTypePtr return (valueType, buffer) where - rawFlags = fromIntegral $ foldr ((.|.) . fromEnum) 0 (DoNotExpand : flags) + collapsedFlags = collapseGetValueFlags $ DoNotExpand : flags getType :: IsKeyPath a => a -> ValueName -> [GetValueFlag] -> ExceptT IOError IO ValueType getType keyPath valueName flags = @@ -246,10 +249,10 @@ getType keyPath valueName flags = WinAPI.withTString valueName $ \valueNamePtr -> alloca $ \valueTypePtr -> do WinAPI.failUnlessSuccess "RegGetValueW" $ - c_RegGetValue keyHandlePtr WinAPI.nullPtr valueNamePtr rawFlags valueTypePtr WinAPI.nullPtr WinAPI.nullPtr + c_RegGetValue keyHandlePtr WinAPI.nullPtr valueNamePtr collapsedFlags valueTypePtr WinAPI.nullPtr WinAPI.nullPtr toEnum . fromIntegral <$> peek valueTypePtr where - rawFlags = fromIntegral $ foldr ((.|.) . fromEnum) 0 flags + collapsedFlags = collapseGetValueFlags flags getString :: IsKeyPath a => a -> ValueName -> ExceptT IOError IO String getString keyPath valueName = do |