18 lines
291 B
Go
18 lines
291 B
Go
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package net
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import "net"
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func GetFreeTcpPort() (int, error) {
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addr, err := net.ResolveTCPAddr("tcp", "localhost:0")
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if err != nil {
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return 0, err
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}
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l, err := net.ListenTCP("tcp", addr)
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if err != nil {
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return 0, err
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}
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defer l.Close()
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return l.Addr().(*net.TCPAddr).Port, nil
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}
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