blob: 5ed789275ee4da82a61bda3e8f7d527c7dc6a111 (
plain)
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
|
"""
QEMU utility library
This offers miscellaneous utility functions, which may not be easily
distinguishable or numerous to be in their own module.
"""
# Copyright (C) 2021 Red Hat Inc.
#
# Authors:
# Cleber Rosa <crosa@redhat.com>
#
# This work is licensed under the terms of the GNU GPL, version 2. See
# the COPYING file in the top-level directory.
#
import re
from typing import Optional
def get_info_usernet_hostfwd_port(info_usernet_output: str) -> Optional[int]:
"""
Returns the port given to the hostfwd parameter via info usernet
:param info_usernet_output: output generated by hmp command "info usernet"
:return: the port number allocated by the hostfwd option
"""
for line in info_usernet_output.split('\r\n'):
regex = r'TCP.HOST_FORWARD.*127\.0\.0\.1\s+(\d+)\s+10\.'
match = re.search(regex, line)
if match is not None:
return int(match[1])
return None
|
