41 lines
1.3 KiB
Python
41 lines
1.3 KiB
Python
from __future__ import annotations
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import socket
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def get_local_ip(reachable: str = "8.8.8.8") -> str | None:
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"""
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Get the default local outgoing IPv4 address without sending any packets.
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This will fail if the target address is known to be unreachable.
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We use Google DNS's IPv4 address as the default.
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"""
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# https://stackoverflow.com/questions/166506/finding-local-ip-addresses-using-pythons-stdlib
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s = None
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try:
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s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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s.connect((reachable, 80))
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return s.getsockname()[0] # pragma: no cover
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except OSError:
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return None # pragma: no cover
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finally:
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if s is not None:
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s.close()
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def get_local_ip6(reachable: str = "2001:4860:4860::8888") -> str | None:
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"""
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Get the default local outgoing IPv6 address without sending any packets.
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This will fail if the target address is known to be unreachable.
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We use Google DNS's IPv6 address as the default.
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"""
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s = None
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try:
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s = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
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s.connect((reachable, 80))
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return s.getsockname()[0] # pragma: no cover
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except OSError: # pragma: no cover
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return None
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finally:
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if s is not None:
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s.close()
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