Gallopsled / pwntools / 1

Committed 29 May 2020 09:05AM UTC coverage: 0.0% (-72.4%) from 72.414%

Build # 1

Build Type

push

github

Committed by

layderv

Commit Message

__str__ to __bytes__ in python2

Run Details

0 of 8 new or added lines in 2 files covered. (0.0%)

11301 existing lines in 133 files now uncovered.

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/pwnlib/commandline/asm.py

1	#!/usr/bin/env python2
UNCOV 2	from __future__ import absolute_import	×
UNCOV 3	from __future__ import division	×
4
UNCOV 5	import argparse	×
UNCOV 6	import sys	×
7
UNCOV 8	from pwn import *	×
UNCOV 9	from pwnlib.commandline import common	×
10
UNCOV 11	parser = common.parser_commands.add_parser(	×
12	'asm',
13	help = 'Assemble shellcode into bytes'
14	)
15
UNCOV 16	parser.add_argument(	×
17	'lines',
18	metavar='line',
19	nargs='*',
20	help='Lines to assemble. If none are supplied, use stdin'
21	)
22
UNCOV 23	parser.add_argument(	×
24	"-f", "--format",
25	help="Output format (defaults to hex for ttys, otherwise raw)",
26	choices=['raw', 'hex', 'string', 'elf']
27	)
28
UNCOV 29	parser.add_argument(	×
30	"-o","--output",
31	metavar='file',
32	help="Output file (defaults to stdout)",
33	type=argparse.FileType('wb'),
34	default=getattr(sys.stdout, 'buffer', sys.stdout)
35	)
36
UNCOV 37	parser.add_argument(	×
38	'-c', '--context',
39	metavar = 'context',
40	action = 'append',
41	type = common.context_arg,
42	choices = common.choices,
43	help = 'The os/architecture/endianness/bits the shellcode will run in (default: linux/i386), choose from: %s' % common.choices,
44	)
45
UNCOV 46	parser.add_argument(	×
47	'-v', '--avoid',
48	action='append',
49	help = 'Encode the shellcode to avoid the listed bytes (provided as hex)'
50	)
51
UNCOV 52	parser.add_argument(	×
53	'-n', '--newline',
54	dest='avoid',
55	action='append_const',
56	const='0a',
57	help = 'Encode the shellcode to avoid newlines'
58	)
59
UNCOV 60	parser.add_argument(	×
61	'-z', '--zero',
62	dest='avoid',
63	action='append_const',
64	const='00',
65	help = 'Encode the shellcode to avoid NULL bytes'
66	)
67
68
UNCOV 69	parser.add_argument(	×
70	'-d',
71	'--debug',
72	help='Debug the shellcode with GDB',
73	action='store_true'
74	)
75
UNCOV 76	parser.add_argument(	×
77	'-e',
78	'--encoder',
79	help="Specific encoder to use"
80	)
81
UNCOV 82	parser.add_argument(	×
83	'-i',
84	'--infile',
85	help="Specify input file",
86	default=sys.stdin,
87	type=argparse.FileType('r')
88	)
89
UNCOV 90	parser.add_argument(	×
91	'-r',
92	'--run',
93	help="Run output",
94	action='store_true'
95	)
96
UNCOV 97	def main(args):	×
98	tty = args.output.isatty()	×
99
100	if args.infile.isatty() and not args.lines:	×
101	parser.print_usage()	×
102	sys.exit(1)	×
103
104	data = '\n'.join(args.lines) or args.infile.read()	×
105	output = asm(data.replace(';', '\n'))	×
106	fmt = args.format or ('hex' if tty else 'raw')	×
107	formatters = {'r':bytes, 'h':enhex, 's':repr}	×
108
109	if args.avoid:	×
110	avoid = unhex(''.join(args.avoid))	×
111	output = encode(output, avoid)	×
112
113	if args.debug:	×
114	proc = gdb.debug_shellcode(output, arch=context.arch)	×
115	proc.interactive()	×
116	sys.exit(0)	×
117
118	if args.run:	×
119	proc = run_shellcode(output)	×
120	proc.interactive()	×
121	sys.exit(0)	×
122
123	if fmt[0] == 'e':	×
124	args.output.write(make_elf(output))	×
125	try: os.fchmod(args.output.fileno(), 0o700)	×
126	except OSError: pass	×
127	else:
128	output = formatters[fmt[0]](output)	×
129	if not hasattr(output, 'decode'):	×
130	output = output.encode('ascii')	×
131	args.output.write(output)	×
132
133	if tty and fmt != 'raw':	×
134	args.output.write(b'\n')	×
135
UNCOV 136	if __name__ == '__main__':	×
137	pwnlib.commandline.common.main(__file__)	×

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