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#!/usr/bin/python
# Copyright (c) 2008-2016 Alexander Belchenko
# All rights reserved.
#
# Redistribution and use in source and binary forms,
# with or without modification, are permitted provided
# that the following conditions are met:
#
# * Redistributions of source code must retain
# the above copyright notice, this list of conditions
# and the following disclaimer.
# * Redistributions in binary form must reproduce
# the above copyright notice, this list of conditions
# and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
# * Neither the name of the author nor the names
# of its contributors may be used to endorse
# or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
# BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
# AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
# OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
"""Show content of hex file as hexdump."""
VERSION = '2.1'
USAGE = '''hex2dump: show content of hex file as hexdump.
Usage:
python hex2dump.py [options] HEXFILE
Options:
-h, --help this help message.
-v, --version version info.
-r, --range=START:END specify address range for dumping
(ascii hex value).
Range can be in form 'START:' or ':END'.
--width=N dump N data bytes per line (default: 16).
Arguments:
HEXFILE name of hex file for processing (use '-' to read
from stdin)
'''
import sys
DEFAULT_WIDTH = 16
def hex2dump(hexfile, start=None, end=None, width=DEFAULT_WIDTH):
import intelhex
if hexfile == '-':
hexfile = sys.stdin
try:
ih = intelhex.IntelHex(hexfile)
except (IOError, intelhex.IntelHexError):
e = sys.exc_info()[1] # current exception
sys.stderr.write('Error reading file: %s\n' % e)
return 1
if not (start is None and end is None):
ih = ih[slice(start,end)]
ih.dump(tofile=sys.stdout, width=width)
return 0
def main(argv=None):
import getopt
if argv is None:
argv = sys.argv[1:]
start = None
end = None
width = DEFAULT_WIDTH
try:
opts, args = getopt.getopt(sys.argv[1:], "hvp:r:",
["help", "version", "range=", "width="])
for o, a in opts:
if o in ("-h", "--help"):
print(USAGE)
return 0
elif o in ("-v", "--version"):
print(VERSION)
return 0
elif o in ("-r", "--range"):
try:
l = a.split(":")
if l[0] != '':
start = int(l[0], 16)
if l[1] != '':
end = int(l[1], 16)
except:
raise getopt.GetoptError('Bad range value(s)')
elif o == "--width":
try:
width = int(a)
if width < 1:
raise ValueError
except:
raise getopt.GetoptError('Bad width value (%s)' % a)
if not args:
raise getopt.GetoptError('Hex file is not specified')
if len(args) > 1:
raise getopt.GetoptError('Too many arguments')
except getopt.GetoptError:
msg = sys.exc_info()[1] # current exception
txt = 'ERROR: '+str(msg) # that's required to get not-so-dumb result from 2to3 tool
print(txt)
print(USAGE)
return 2
try:
return hex2dump(args[0], start, end, width)
except IOError:
e = sys.exc_info()[1] # current exception
import errno
if e.errno not in (0, errno.EPIPE):
raise
if __name__ == '__main__':
import sys
sys.exit(main())
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