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from __future__ import absolute_import
from __future__ import division
import argparse
import sys
from string import whitespace
from pwnlib.commandline import common
from pwnlib.util.fiddling import unhex
parser = common.parser_commands.add_parser(
'unhex',
help = 'Decodes hex-encoded data provided on the command line or via stdin.',
description = 'Decodes hex-encoded data provided on the command line or via stdin.'
)
parser.add_argument('hex', nargs='*',
help='Hex bytes to decode')
def main(args):
try:
o = getattr(sys.stdout, 'buffer', sys.stdout)
if not args.hex:
s = getattr(sys.stdin, 'buffer', sys.stdin).read().translate(None, whitespace.encode('ascii'))
o.write(unhex(s))
else:
o.write(unhex(''.join(args.hex)))
except TypeError as e:
sys.stderr.write(str(e) + '\n')
raise
if __name__ == '__main__':
common.main(__file__, main)
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