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-- Copyright 2018 Google LLC
--
-- Licensed under the Apache License, Version 2.0 (the "License"); you may not
-- use this file except in compliance with the License. You may obtain a copy of
-- the License at
--
-- https://www.apache.org/licenses/LICENSE-2.0
--
-- Unless required by applicable law or agreed to in writing, software
-- distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-- WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-- License for the specific language governing permissions and limitations under
-- the License.
{-# LANGUAGE CApiFFI #-}
module BTLS.BoringSSL.Err where
import Data.ByteString (ByteString)
import qualified Data.ByteString as ByteString
import Foreign (Storable(peek), alloca, nullPtr)
import Foreign.C.String (CString, peekCString)
import Foreign.C.Types
#include <openssl/err.h>
-- Define a newtype for packed errors so c2hs doesn't try to marshal them.
newtype Err = Err {rawErrValue :: CUInt}
deriving (Eq)
errGetLib :: Err -> ErrLib
errGetLib (Err e) = castEnum (errGetLib' e)
foreign import capi "openssl/err.h ERR_GET_LIB"
errGetLib' :: CUInt -> CInt
errGetReason :: Err -> ErrR
errGetReason (Err e) = castEnum (errGetReason' e)
foreign import capi "openssl/err.h ERR_GET_REASON"
errGetReason' :: CUInt -> CInt
errFlagString :: CInt
errFlagString = {#const ERR_FLAG_STRING#}
{#fun ERR_get_error_line_data as errGetErrorLineData
{ alloca- `FilePath' peekCStringPtr*
, alloca- `Int' peekIntPtr*
, alloca- `Maybe ByteString' peekErrorData*
, alloca- `CInt' peek* }
-> `Err' Err#}
where
peekCStringPtr p = do
s <- peek p
peekCString s
peekIntPtr p = fmap fromIntegral (peek p)
peekErrorData p = do
s <- peek p
if s == nullPtr
then return Nothing
else Just <$> ByteString.packCString s
{#fun ERR_error_string_n as errErrorStringN
{rawErrValue `Err', id `CString', `Int'} -> `()'#}
{#fun ERR_clear_error as errClearError {} -> `()'#}
{#enum ERR_LIB_NONE as ErrLib
{ underscoreToCase
, ERR_LIB_BN as ErrLibBN
, ERR_LIB_RSA as ErrLibRSA
, ERR_LIB_DH as ErrLibDH
, ERR_LIB_EVP as ErrLibEvp
, ERR_LIB_PEM as ErrLibPEM
, ERR_LIB_DSA as ErrLibDSA
, ERR_LIB_ASN1 as ErrLibASN1
, ERR_LIB_EC as ErrLibEC
, ERR_LIB_SSL as ErrLibSSL
, ERR_LIB_BIO as ErrLibBIO
, ERR_LIB_PKCS7 as ErrLibPKCS7
, ERR_LIB_PKCS8 as ErrLibPKCS8
, ERR_LIB_OCSP as ErrLibOCSP
, ERR_LIB_UI as ErrLibUI
, ERR_LIB_ECDSA as ErrLibECDSA
, ERR_LIB_ECDH as ErrLibECDH
, ERR_LIB_HMAC as ErrLibHMAC
, ERR_LIB_HKDF as ErrLibHKDF }
omit (ERR_NUM_LIBS)
deriving (Eq)#}
{#enum define ErrR
{ ERR_R_SYS_LIB as ErrRSysLib
, ERR_R_BN_LIB as ErrRBNLib
, ERR_R_RSA_LIB as ErrRRSALib
, ERR_R_DH_LIB as ErrRDHLib
, ERR_R_EVP_LIB as ErrREVPLib
, ERR_R_BUF_LIB as ErrRBufLib
, ERR_R_OBJ_LIB as ErrRObjLib
, ERR_R_PEM_LIB as ErrRPEMLib
, ERR_R_DSA_LIB as ErrRDSALib
, ERR_R_X509_LIB as ErrRX509Lib
, ERR_R_ASN1_LIB as ErrRASN1Lib
, ERR_R_CONF_LIB as ErrRConfLib
, ERR_R_CRYPTO_LIB as ErrRCryptoLib
, ERR_R_EC_LIB as ErrRECLib
, ERR_R_SSL_LIB as ErrRSSLLib
, ERR_R_BIO_LIB as ErrRBIOLib
, ERR_R_PKCS7_LIB as ErrRPKCS7Lib
, ERR_R_PKCS8_LIB as ErrRPKCS8Lib
, ERR_R_X509V3_LIB as ErrRX509v3Lib
, ERR_R_RAND_LIB as ErrRRandLib
, ERR_R_ENGINE_LIB as ErrREngineLib
, ERR_R_OCSP_LIB as ErrROCSPLib
, ERR_R_UI_LIB as ErrRUILib
, ERR_R_COMP_LIB as ErrRCompLib
, ERR_R_ECDSA_LIB as ErrRECDSALib
, ERR_R_ECDH_LIB as ErrRECDHLib
, ERR_R_HMAC_LIB as ErrRHMACLib
, ERR_R_USER_LIB as ErrRUserLib
, ERR_R_DIGEST_LIB as ErrRDigestLib
, ERR_R_CIPHER_LIB as ErrRCipherLib
, ERR_R_HKDF_LIB as ErrRHKDFLib
, ERR_R_FATAL as ErrRFatal
, ERR_R_MALLOC_FAILURE as ErrRMallocFailure
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED as ErrRShouldNotHaveBeenCalled
, ERR_R_PASSED_NULL_PARAMETER as ErrRPassedNullParameter
, ERR_R_INTERNAL_ERROR as ErrRInternalError
, ERR_R_OVERFLOW as ErrROverflow }
deriving (Eq)#}
castEnum :: (Enum a, Enum b) => a -> b
castEnum = toEnum . fromEnum
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