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#!/usr/bin/env python
# Display a binary (or any) file in chars (if printable), hex and decimal.
# Similar to what od -xc used to do before GNU got hold of it,
# or what xxd (part of the vim package) does,
# but (IMO) with cleaner and more readable output.
# Copyright 2009 by Akkana Peck. Share and enjoy under the GPL v2 or later.
from __future__ import print_function
import sys, os
import curses.ascii
do_char = False
do_hex = False
do_dec = False
file_list = []
multi_format = False
def Usage() :
print("Usage: %s [-cxd] file ..." % os.path.basename(sys.argv[0]))
exit(1)
def parse_opts() :
global do_char, do_hex, do_dec, file_list, multi_format
num_formats = 0
for i in range(1, len(sys.argv)) :
if sys.argv[i][0] != '-' :
file_list = sys.argv[i:]
break
for c in sys.argv[i][1:] :
if c == 'c' :
do_char = True
num_formats = num_formats + 1
elif c == 'x' :
do_hex = True
num_formats = num_formats + 1
elif c == 'd' :
do_dec = True
num_formats = num_formats + 1
elif c == 'h' :
Usage()
if num_formats == 0 :
do_char = True
do_hex = True
do_dec = True
num_formats = 3
if num_formats > 1 :
multi_format = True
def bdump(filename, do_char, do_hex, do_dec) :
if len(file_list) > 1 :
print(filename + ":")
if filename :
try :
fp = open(filename, "r")
except IOError as e:
print("Can't open %s:\n%s" % (filename, e))
#sys.exit(e.errno)
return
else :
fp = sys.stdin
try :
while True :
line = fp.read(16)
if line == "" : break
if do_char :
for c in line :
if curses.ascii.isprint(c) :
print("%4c" % (c), end=' ')
elif curses.ascii.iscntrl(c) :
print(" ^" + chr(ord(c) + ord('A') - 1), end=' ')
else :
print(' ', end=' ')
print()
if do_hex :
for c in line :
print("%4x" % (ord(c)), end=' ')
print()
if do_dec :
for c in line :
print("%4d" % (ord(c)), end=' ')
print()
if multi_format :
print()
except IOError as e :
if e.errno == 32 : # Broken pipe
sys.exit(0)
print(e)
sys.exit(e)
fp.close()
# main() :
parse_opts()
if len(file_list) == 0 :
bdump(None, do_char, do_hex, do_dec)
else :
for filename in file_list :
bdump(filename, do_char, do_hex, do_dec)