145 lines
3.6 KiB
Python
Executable File
145 lines
3.6 KiB
Python
Executable File
#!/usr/bin/env python3
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############################################################################
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# tools/coredump.py
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership. The
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# ASF licenses this file to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance with the
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# License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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############################################################################
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import argparse
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import base64
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import binascii
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import os
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import struct
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import sys
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import lzf
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def decompress(lzffile, outfile):
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chunk_number = 1
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while True:
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prefix = lzffile.read(2)
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if len(prefix) == 0:
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break
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elif prefix != b"ZV":
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break
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typ = lzffile.read(1)
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clen = struct.unpack(">H", lzffile.read(2))[0]
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if typ == b"\x00":
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chunk = lzffile.read(clen)
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elif typ == b"\x01":
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uncompressed_len = struct.unpack(">H", lzffile.read(2))[0]
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cdata = lzffile.read(clen)
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chunk = lzf.decompress(cdata, uncompressed_len)
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else:
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return
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outfile.write(chunk)
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chunk_number += 1
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def unhexlify(infile, outfile):
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for line in infile.readlines():
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line = line.strip()
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if line == "":
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break
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index = line.rfind(" ")
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if index > 0:
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line = line[index + 1 :]
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outfile.write(binascii.unhexlify(line))
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def unbase64file(infile, outfile):
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input = ""
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for line in infile.readlines():
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line = line.strip()
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if line == "":
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break
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index = line.rfind(" ")
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if index > 0:
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line = line[index + 1 :]
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input += line
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outfile.write(base64.b64decode(input))
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def parse_args():
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global args
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parser = argparse.ArgumentParser(
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description=__doc__,
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formatter_class=argparse.RawDescriptionHelpFormatter,
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allow_abbrev=False,
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)
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parser.add_argument("input")
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parser.add_argument("-o", "--output", help="Output file in hex.")
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parser.add_argument(
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"--base64",
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action="store_true",
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default=False,
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help="Set when input file is base64 encoded.",
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)
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args = parser.parse_args()
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def main():
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parse_args()
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if not os.path.isfile(args.input):
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sys.exit(1)
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tmp = os.path.splitext(args.input)[0] + ".tmp"
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if args.output is None:
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args.output = os.path.splitext(args.input)[0] + ".core"
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infile = open(args.input, "r")
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tmpfile = open(tmp, "wb+")
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if args.base64:
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unbase64file(infile, tmpfile)
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else:
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unhexlify(infile, tmpfile)
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infile.close()
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tmpfile.seek(0, 0)
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lzfhdr = tmpfile.read(2)
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if lzfhdr == b"ZV":
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outfile = open(args.output, "wb")
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tmpfile.seek(0, 0)
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decompress(tmpfile, outfile)
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tmpfile.close()
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outfile.close()
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os.unlink(tmp)
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else:
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tmpfile.close()
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os.rename(tmp, args.output)
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print("Core file conversion completed: " + args.output)
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if __name__ == "__main__":
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main()
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