diff options
| -rw-r--r-- | lib/pure/net.nim | 20 | ||||
| -rw-r--r-- | tests/untestable/network/README.md | 8 | ||||
| -rw-r--r-- | tests/untestable/network/stdlib/tnet.nim | 16 |
3 files changed, 44 insertions, 0 deletions
diff --git a/lib/pure/net.nim b/lib/pure/net.nim index f468e1c5d..f55d5d900 100644 --- a/lib/pure/net.nim +++ b/lib/pure/net.nim @@ -1662,3 +1662,23 @@ proc connect*(socket: Socket, address: string, port = Port(0), socket.fd.setBlocking(true) doAssert socket.gotHandshake() socket.fd.setBlocking(true) + +proc getPrimaryIPAddr*(dest = parseIpAddress("8.8.8.8")): IpAddress = + ## Finds the local IP address, usually assigned to eth0 on LAN or wlan0 on WiFi, + ## used to reach an external address. Useful to run local services. + ## + ## No traffic is sent. + ## + ## Supports IPv4 and v6. + ## Raises OSError if external networking is not set up. + ## + ## .. code-block:: Nim + ## echo $getPrimaryIPAddr() # "192.168.1.2" + + let socket = + if dest.family == IpAddressFamily.IPv4: + newSocket(AF_INET, SOCK_DGRAM, IPPROTO_UDP) + else: + newSocket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP) + socket.connect($dest, 80.Port) + socket.getLocalAddr()[0].parseIpAddress() diff --git a/tests/untestable/network/README.md b/tests/untestable/network/README.md new file mode 100644 index 000000000..173cf105f --- /dev/null +++ b/tests/untestable/network/README.md @@ -0,0 +1,8 @@ +This directory contains tests that require networking and cannot be run in CI. + +The tests can be run manually during development using: +```nim +./koch tests cat untestable/network/stdlib +``` + +The directory structure mimics tests/ diff --git a/tests/untestable/network/stdlib/tnet.nim b/tests/untestable/network/stdlib/tnet.nim new file mode 100644 index 000000000..cb0f38944 --- /dev/null +++ b/tests/untestable/network/stdlib/tnet.nim @@ -0,0 +1,16 @@ +discard """ +outputsub: "" +""" + +import net, nativesockets +import unittest + +suite "getPrimaryIPAddr": + test "localhost v4": + check getPrimaryIPAddr(parseIpAddress("127.0.0.1")) == parseIpAddress("127.0.0.1") + + test "localhost v6": + check getPrimaryIPAddr(parseIpAddress("::1")) == parseIpAddress("::1") + + test "v4": + check getPrimaryIPAddr() != parseIpAddress("127.0.0.1") |