31 lines
1000 B
Nim
31 lines
1000 B
Nim
from net import
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IpAddress, IpAddressFamily, Port, `$`, newSocket, connect, close,
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getLocalAddr, parseIpAddress
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from nativesockets import
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Domain, SockType, Protocol
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# FIXME: getPrimaryAddr is not needed anymore once
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# https://github.com/nim-lang/Nim/pull/15538 is released.
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proc getPrimaryIPAddr*(dest = parseIpAddress("8.8.8.8")): IpAddress =
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## Finds the local IP address, usually assigned to eth0 on LAN or wlan0 on WiFi,
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## used to reach an external address. Useful to run local services.
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##
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## No traffic is sent.
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##
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## Supports IPv4 and v6.
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## Raises OSError if external networking is not set up.
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##
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## .. code-block:: Nim
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## echo $getPrimaryIPAddr() # "192.168.1.2"
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let socket =
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if dest.family == IpAddressFamily.IPv4:
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newSocket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)
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else:
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newSocket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP)
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try:
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socket.connect($dest, 80.Port)
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result = socket.getLocalAddr()[0].parseIpAddress()
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finally:
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socket.close()
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