mirror of
https://github.com/chipsec/chipsec
synced 2026-06-08 13:31:00 +00:00
Frinzell, Aaron
92 lines
2.9 KiB
Python
92 lines
2.9 KiB
Python
# CHIPSEC: Platform Security Assessment Framework
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# Copyright (c) 2010-2021, Intel Corporation
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; Version 2.
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#
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# This program 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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#
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# Contact information:
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# chipsec@intel.com
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#
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#
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# -------------------------------------------------------------------------------
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#
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# CHIPSEC: Platform Hardware Security Assessment Framework
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# (c) 2010-2012 Intel Corporation
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#
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# -------------------------------------------------------------------------------
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"""
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Reading from/writing to files
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usage:
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>>> read_file(filename)
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>>> write_file(filename, buffer)
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"""
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import os
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from typing import Any
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from chipsec.library.strings import get_datetime_str
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from chipsec.library.logger import logger
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TOOLS_DIR = 'chipsec_tools'
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def read_file(filename: str, size: int = 0) -> bytes:
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try:
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with open(filename, 'rb') as f:
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if size:
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_file = f.read(size)
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else:
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_file = f.read()
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logger().log_debug(f"[file] Read {len(_file):d} bytes from '{filename:.256}'")
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return _file
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except OSError:
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logger().log_error(f"Unable to open file '{filename:.256}' for read access")
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return b''
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def write_file(filename: str, buffer: Any, append: bool = False) -> bool:
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perm = 'a' if append else 'w'
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if isinstance(buffer, bytes) or isinstance(buffer, bytearray):
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perm += 'b'
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try:
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f = open(filename, perm)
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except OSError:
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logger().log_error(f"Unable to open file '{filename:.256}' for write access")
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return False
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f.write(buffer)
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f.close()
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logger().log_debug(f"[file] Wrote {len(buffer):d} bytes to '{filename:.256}'")
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return True
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def write_unique_file(file_buffer: Any, file_name: str = '', file_extension: str = '') -> str:
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"""Writes file with the name <file_name>_<year><month><day>-<hour><minute><second>.<file_extension>"""
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file_str = f'{file_name}_' if file_name else ''
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file_ext = f'.{file_extension}' if file_extension else ''
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file_name_str = f'{file_str}{get_datetime_str()}{file_ext}'
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return file_name_str if write_file(file_name_str, file_buffer) else ''
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def get_main_dir() -> str:
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path = os.path.abspath(os.path.join(os.path.dirname(__file__), os.path.pardir, os.path.pardir))
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return path
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def get_module_dir() -> str:
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path = os.path.join(get_main_dir(), "chipsec", "modules")
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return path
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