65 lines
1.8 KiB
Python
65 lines
1.8 KiB
Python
# exceptions.py
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#
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# Copyright (C) 2006-2022 wolfSSL Inc.
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#
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# This file is part of wolfSSL. (formerly known as CyaSSL)
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#
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# wolfSSL is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# wolfSSL is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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from __future__ import annotations
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from typing import cast
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from wolfcrypt._ffi import ffi as _ffi
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from wolfcrypt._ffi import lib as _lib
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class WolfCryptError(Exception):
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pass
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class WolfCryptApiError(WolfCryptError):
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"""
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WolfCrypt API error displaying the error code and error message if support is compiled in.
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"""
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def __init__(self, message: str, err_code: int) -> None:
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"""
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Create a WolfCryptApiError exception.
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:param message: error message
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:param err_code: WolfCrypt error code
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"""
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err_string = error_string(err_code)
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if err_string:
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reason = f": {err_string}"
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else:
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reason = ""
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super().__init__(f"{message} ({err_code}){reason}")
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def error_string(err_code: int) -> str:
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"""
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Convert error code to error string.
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:param err_code: WolfCrypt error code
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:return: error string
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"""
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if _lib.ERROR_STRINGS_ENABLED:
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return cast(bytes, _ffi.string(_lib.wc_GetErrorString(err_code))).decode()
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else:
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return ""
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