Created
June 17, 2022 13:09
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A small Go program to find a free / unused TCP port
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| package main | |
| import ( | |
| "fmt" | |
| "net" | |
| "os" | |
| ) | |
| func main() { | |
| ln, err := net.Listen("tcp", "") | |
| if err != nil { | |
| fmt.Printf("%v", err) | |
| os.Exit(1) | |
| } else { | |
| fmt.Printf("%d", ln.Addr().(*net.TCPAddr).Port) | |
| ln.Close() | |
| } | |
| } |
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