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16 lines
416 B
16 lines
416 B
package tcp |
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import ( |
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"github.com/xtls/xray-core/common" |
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"github.com/xtls/xray-core/common/net" |
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) |
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// PickPort returns an unused TCP port in the system. The port returned is highly likely to be unused, but not guaranteed. |
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func PickPort() net.Port { |
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listener, err := net.Listen("tcp4", "127.0.0.1:0") |
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common.Must(err) |
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defer listener.Close() |
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addr := listener.Addr().(*net.TCPAddr) |
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return net.Port(addr.Port) |
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}
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