mirror of https://github.com/xemu-project/xemu.git
46 lines
1.2 KiB
Python
46 lines
1.2 KiB
Python
"""
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QEMU development and testing utilities
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This package provides a small handful of utilities for performing
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various tasks not directly related to the launching of a VM.
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"""
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# Copyright (C) 2021 Red Hat Inc.
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#
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# Authors:
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# John Snow <jsnow@redhat.com>
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# Cleber Rosa <crosa@redhat.com>
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#
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# This work is licensed under the terms of the GNU GPL, version 2. See
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# the COPYING file in the top-level directory.
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#
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import re
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from typing import Optional
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# pylint: disable=import-error
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from .accel import kvm_available, list_accel, tcg_available
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__all__ = (
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'get_info_usernet_hostfwd_port',
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'kvm_available',
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'list_accel',
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'tcg_available',
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)
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def get_info_usernet_hostfwd_port(info_usernet_output: str) -> Optional[int]:
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"""
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Returns the port given to the hostfwd parameter via info usernet
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:param info_usernet_output: output generated by hmp command "info usernet"
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:return: the port number allocated by the hostfwd option
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"""
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for line in info_usernet_output.split('\r\n'):
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regex = r'TCP.HOST_FORWARD.*127\.0\.0\.1\s+(\d+)\s+10\.'
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match = re.search(regex, line)
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if match is not None:
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return int(match[1])
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return None
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