1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
#!/usr/bin/env python3
#
# Wireshark tests
# By Gerald Combs <gerald@wireshark.org>
#
# Ported from a set of Bash scripts which were copyright 2005 Ulf Lamping
#
# SPDX-License-Identifier: GPL-2.0-or-later
#
'''Write captures/dhcp.pcap to stdout, optionally writing only packet records or writing them slowly.'''
import argparse
import os
import os.path
import time
import sys
def main():
parser = argparse.ArgumentParser(description='Dump dhcp.pcap')
parser.add_argument('dump_type', choices=['cat', 'cat100', 'slow', 'raw'],
help='cat: Just dump the file. cat100: Dump 100 packet records. slow: Dump the file, pause, and dump its packet records. raw: Dump only the packet records.')
args = parser.parse_args()
dhcp_pcap = os.path.join(os.path.dirname(__file__), 'captures', 'dhcp.pcap')
dhcp_fd = open(dhcp_pcap, 'rb')
contents = dhcp_fd.read()
if args.dump_type != 'raw':
os.write(1, contents)
if args.dump_type == 'cat100':
# The capture contains 4 packets. Write 96 more.
for _ in range(24):
os.write(1, contents[24:])
if args.dump_type.startswith('cat'):
sys.exit(0)
if args.dump_type == 'slow':
time.sleep(1.5)
# slow, raw
os.write(1, contents[24:])
sys.exit(0)
if __name__ == '__main__':
main()
|
