71 lines
1.5 KiB
Go
71 lines
1.5 KiB
Go
package main
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import (
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"io"
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"log"
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"net"
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"os"
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"time"
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"git.tcp.direct/kayos/go-socks5"
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"git.tcp.direct/kayos/go-socks5/ccsocks5"
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)
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func handleErr(err error) {
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if err != nil {
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panic(err)
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}
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}
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func main() {
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locIP := net.ParseIP("127.0.0.1")
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// Create a local listener
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lAddr := &net.UDPAddr{IP: locIP, Port: 12398}
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l, err := net.ListenUDP("udp", lAddr)
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handleErr(err)
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defer l.Close()
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go func() {
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buf := make([]byte, 2048)
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for {
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n, remote, err := l.ReadFrom(buf)
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if err != nil {
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log.Printf("server: %v", err)
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return
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}
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log.Printf("server: %+v", string(buf[:n]))
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l.WriteTo([]byte("pong"), remote) // nolint: errcheck
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}
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}()
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go func() {
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time.Sleep(time.Second)
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c := ccsocks5.NewClient("127.0.0.1:10809")
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handleErr(err)
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con, err := c.Dial("udp", lAddr.String())
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handleErr(err)
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for {
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con.Write([]byte("ping")) // nolint: errcheck
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out := make([]byte, 4)
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con.SetDeadline(time.Now().Add(time.Second)) // nolint: errcheck
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_, err = io.ReadFull(con, out)
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con.SetDeadline(time.Time{}) // nolint: errcheck
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if err != nil {
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log.Printf("client: %v", err)
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} else {
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log.Printf("client: %+v", string(out))
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}
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time.Sleep(time.Second * 2)
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}
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}()
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// Create a SOCKS5 server
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server := socks5.NewServer(socks5.WithLogger(socks5.NewLogger(log.New(os.Stdout, "socks5: ", log.LstdFlags))))
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// Create SOCKS5 proxy on localhost port 8000
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if err := server.ListenAndServe("tcp", "127.0.0.1:10809"); err != nil {
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panic(err)
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}
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}
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