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hexdump with full support for python2.x and python 3.x
def hexdump( src, length=16, sep='.' ):
'''
@brief Return {src} in hex dump.
@param[in] length {Int} Nb Bytes by row.
@param[in] sep {Char} For the text part, {sep} will be used for non ASCII char.
@return {Str} The hexdump
@note Full support for python2 and python3 !
'''
result = [];
# Python3 support
try:
xrange(0,1);
except NameError:
xrange = range;
for i in xrange(0, len(src), length):
subSrc = src[i:i+length];
hexa = '';
isMiddle = False;
for h in xrange(0,len(subSrc)):
if h == length/2:
hexa += ' ';
h = subSrc[h];
if not isinstance(h, int):
h = ord(h);
h = hex(h).replace('0x','');
if len(h) == 1:
h = '0'+h;
hexa += h+' ';
hexa = hexa.strip(' ');
text = '';
for c in subSrc:
if not isinstance(c, int):
c = ord(c);
if 0x20 <= c < 0x7F:
text += chr(c);
else:
text += sep;
result.append(('%08X: %-'+str(length*(2+1)+1)+'s |%s|') % (i, hexa, text));
return '\n'.join(result);
################################################################################
# Basic usage:
from binascii import unhexlify, hexlify;
def h2bin( x ):
return unhexlify(str.encode(x.replace(' ', '').replace('\n', '')));
hello_openvpn = h2bin('''
16 03 01 00 df 01 00 00 db 03 01 95 a3 8a 7f 46
a9 1c 78 99 21 ae 92 6d 2d 14 5a 8f 2b c8 ee e2
0b 9e 38 34 ec 3d 66 2b 9c d5 63 00 00 68 c0 14
c0 0a c0 22 c0 21 00 39 00 38 00 88 00 87 c0 0f
c0 05 00 35 00 84 c0 12 c0 08 c0 1c c0 1b 00 16
00 13 c0 0d c0 03 00 0a c0 13 c0 09 c0 1f c0 1e
00 33 00 32 00 9a 00 99 00 45 00 44 c0 0e c0 04
00 2f 00 96 00 41 00 07 c0 11 c0 07 c0 0c c0 02
00 05 00 04 00 15 00 12 00 09 00 14 00 11 00 08
00 06 00 03 00 ff 02 01 00 00 49 00 0b 00 04 03
00 01 02 00 0a 00 34 00 32 00 0e 00 0d 00 19 00
0b 00 0c 00 18 00 09 00 0a 00 16 00 17 00 08 00
06 00 07 00 14 00 15 00 04 00 05 00 12 00 13 00
01 00 02 00 03 00 0f 00 10 00 11 00 23 00 00 00
0f 00 01 01
''');
print(hexdump(hello_openvpn));
# Will print:
'''
00000000: 16 03 01 00 df 01 00 00 db 03 01 95 a3 8a 7f 46 |...............F|
00000010: a9 1c 78 99 21 ae 92 6d 2d 14 5a 8f 2b c8 ee e2 |..x.!..m-.Z.+...|
00000020: 0b 9e 38 34 ec 3d 66 2b 9c d5 63 00 00 68 c0 14 |..84.=f+..c..h..|
00000030: c0 0a c0 22 c0 21 00 39 00 38 00 88 00 87 c0 0f |...".!.9.8......|
00000040: c0 05 00 35 00 84 c0 12 c0 08 c0 1c c0 1b 00 16 |...5............|
00000050: 00 13 c0 0d c0 03 00 0a c0 13 c0 09 c0 1f c0 1e |................|
00000060: 00 33 00 32 00 9a 00 99 00 45 00 44 c0 0e c0 04 |.3.2.....E.D....|
00000070: 00 2f 00 96 00 41 00 07 c0 11 c0 07 c0 0c c0 02 |./...A..........|
00000080: 00 05 00 04 00 15 00 12 00 09 00 14 00 11 00 08 |................|
00000090: 00 06 00 03 00 ff 02 01 00 00 49 00 0b 00 04 03 |..........I.....|
000000A0: 00 01 02 00 0a 00 34 00 32 00 0e 00 0d 00 19 00 |......4.2.......|
000000B0: 0b 00 0c 00 18 00 09 00 0a 00 16 00 17 00 08 00 |................|
000000C0: 06 00 07 00 14 00 15 00 04 00 05 00 12 00 13 00 |................|
000000D0: 01 00 02 00 03 00 0f 00 10 00 11 00 23 00 00 00 |............#...|
000000E0: 0f 00 01 01 |....|
'''
@JonathonReinhart

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commented Mar 25, 2017

What is going on with all of those semicolons?!

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