11306887291

from __future__ import absolute_import
from __future__ import division

import sys

import pwnlib.args
pwnlib.args.free_form = False

from pwn import *
from pwnlib.commandline import common

p = common.parser_commands.add_parser(
    'elfpatch',
    help = 'Patch an ELF file',
    description = 'Patch an ELF file'
)

p.add_argument('elf',help="File to patch")
p.add_argument('offset',help="Offset to patch in virtual address (hex encoded)")
p.add_argument('bytes',help='Bytes to patch (hex encoded)')


def main(a):
    if not a.offset.startswith('0x'):
        a.offset = '0x' + a.offset

    offset = int(a.offset, 16)
    bytes  = unhex(a.bytes)

    with context.silent:
        elf    = ELF(a.elf)

    elf.write(offset, bytes)
    getattr(sys.stdout, 'buffer', sys.stdout).write(elf.get_data())

if __name__ == '__main__':
    pwnlib.commandline.common.main(__file__, main)

1	from __future__ import absolute_import	1✔
2	from __future__ import division	1✔
3
4	import sys	1✔
5
6	import pwnlib.args	1✔
7	pwnlib.args.free_form = False	1✔
8
9	from pwn import *	1✔
10	from pwnlib.commandline import common	1✔
11
12	p = common.parser_commands.add_parser(	1✔
13	'elfpatch',
14	help = 'Patch an ELF file',
15	description = 'Patch an ELF file'
16	)
17
18	p.add_argument('elf',help="File to patch")	1✔
19	p.add_argument('offset',help="Offset to patch in virtual address (hex encoded)")	1✔
20	p.add_argument('bytes',help='Bytes to patch (hex encoded)')	1✔
21
22
23	def main(a):	1✔
24	if not a.offset.startswith('0x'):	×
25	a.offset = '0x' + a.offset	×
26
27	offset = int(a.offset, 16)	×
28	bytes = unhex(a.bytes)	×
29
30	with context.silent:	×
31	elf = ELF(a.elf)	×
32
33	elf.write(offset, bytes)	×
34	getattr(sys.stdout, 'buffer', sys.stdout).write(elf.get_data())	×
35
36	if __name__ == '__main__':	1!
NEW 37	pwnlib.commandline.common.main(__file__, main)	×

Gallopsled / pwntools / 11306887291

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