43 lines
635 B
Go
43 lines
635 B
Go
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package main
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import (
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"flag"
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"fmt"
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"net"
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"os"
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)
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var (
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port = flag.String("p", "12124", "Port number to listen on")
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)
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func e(err error) {
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if err != nil {
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fmt.Printf("Erroring out: %s\n", err)
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os.Exit(1)
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}
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}
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func main() {
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flag.Parse()
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// Bind to the port
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bind, err := net.ResolveUDPAddr("0.0.0.0:" + *port)
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e(err)
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// Create listener
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listener, err := net.ListenUDP("udp", bind)
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e(err)
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fmt.Printf("Listening to port %s...\n", *port)
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for {
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// read into a new buffer
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buffer := make([]byte, 1024)
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_, _, err := listener.ReadFrom(buffer)
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e(err)
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// log to standard output
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fmt.Println(string(buffer))
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}
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}
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