Created
May 29, 2014 12:55
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hexdump
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# -*- mode: python; coding: utf-8 -*- | |
# | |
# Time-stamp: <Thu May 29 21:49:30 東京 (標準時) 2014> | |
# | |
# | |
import os | |
import sys | |
import struct | |
import string | |
import binascii | |
# hexdump | |
# | |
# | |
def hexdump( dat, offset, size ): | |
def printable( d ): | |
c = chr( struct.unpack("B",d)[0]) | |
if c in string.digits or c in string.ascii_letters or c in string.punctuation : | |
return c | |
return "." | |
def printdump( address, hexprint, asciiprint ): | |
print "%(addr)08x : %(tmp)s : %(asc)s" % { | |
'addr': (address & 0xfffffff0), 'tmp': hexprint, 'asc': asciiprint } | |
return | |
total_size = len(dat) | |
if offset + size > total_size: | |
size + total_size - offset | |
addr = offset & 0xfffffff0 | |
pads = offset & 0x0000000f | |
tmp = "" | |
asc = "" | |
for idx in range(0,pads): | |
tmp = tmp + "-- " | |
asc = asc + "-" | |
addr = addr + 1 | |
for idx in range(0,size): | |
tmp = tmp + binascii.hexlify(dat[offset+idx]) +" " | |
asc = asc + printable(dat[offset+idx]) | |
if addr % 16 == 15: | |
printdump( addr, tmp, asc ) | |
tmp = "" | |
asc = "" | |
addr = addr + 1 | |
pads = (16 - (addr & 0x0000000f)) % 16 | |
if pads > 0: | |
for idx in range(0,pads): | |
tmp = tmp + "-- " | |
asc = asc + "-" | |
addr = addr + 1 | |
if tmp != "": | |
printdump( addr, tmp, asc ) | |
return | |
# | |
# | |
# | |
if __name__ == '__main__': | |
print "Hi there", sys.argv[1] | |
f = open(sys.argv[1], "rb") | |
try: | |
d = f.read() | |
finally: | |
f.close() | |
print "test-1 18 size30" | |
hexdump(d, 20, 30) | |
print "test-2 0 size 32" | |
hexdump(d, 0, 32) |
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こんな感じの16進ダンプが欲しくてつくる
python hexdump.py tmp.mp3
Hi there tmp.mp3
test-1 18 size30
00000010 : -- -- -- -- 79 00 45 35 5a 54 00 67 93 28 20 39 : ----y.E5ZT.g.(.9
00000020 : a5 8e 26 11 03 be 18 4a c1 c3 3a 8e 05 84 f5 bc : ..&....J..:.....
00000040 : 40 50 -- -- -- -- -- -- -- -- -- -- -- -- -- -- : @P--------------
test-2 0 size 32
00000000 : ff fb 44 c0 00 00 05 a4 0f 1b 20 98 40 41 3c 27 : ..D.........@A<'
00000010 : e8 34 61 89 79 00 45 35 5a 54 00 67 93 28 20 39 : .4a.y.E5ZT.g.(.9