About

This is an experimental library that allows you to send packets with an arbitrary source IP-address and doesn't depend on gopacket. The code is heavily based on the work by @chrisnc.

It will truncate your payload if the maximum length is exceeded.

Usage example

package main

import (
	"log"
	"net"

	"ilya.app/udpspoof"
)

func main() {
	conn, err := udpspoof.NewUDPConn("127.0.0.1:5000")
	if err != nil {
		log.Fatal(err)
	}

	_, err = conn.WriteAs(net.ParseIP("8.8.8.8"), uint16(53), []byte("Hello\n"))
	if err != nil {
		log.Fatal(err)
	}
}