go-tcpinfo
This is a small wrapper around the syscall library, so you don't have to mess around with it whenever you want to get tcp info for a connection
Usage
tcpInfo, err := tcpinfo.GetsockoptTCPInfo(&conn)
if err != nil {
panic(err)
}Example
package main
import (
"fmt"
"io"
"io/ioutil"
"net"
"sync"
"github.com/brucespang/go-tcpinfo"
)
func handleConn(conn net.Conn) {
io.Copy(ioutil.Discard, conn)
}
func server(wg *sync.WaitGroup) {
ln, err := net.Listen("tcp", ":8000")
if err != nil {
panic(err)
}
wg.Done()
// accept connection on port
for {
conn, err := ln.Accept()
if err != nil {
panic(err)
}
go handleConn(conn)
}
}
func client() {
conn, err := net.Dial("tcp", "127.0.0.1:8000")
if err != nil {
panic(err)
}
go io.Copy(ioutil.Discard, conn)
_, err = conn.Write([]byte("hihihihihihihi"))
if err != nil {
panic(err)
}
tcpInfo, err := tcpinfo.GetsockoptTCPInfo(conn.(*net.TCPConn))
if err != nil {
panic(err)
}
fmt.Printf("%+v\n", tcpInfo)
}
func main() {
wg := sync.WaitGroup{}
wg.Add(1)
go server(&wg)
wg.Wait()
client()
}