/
main.go
59 lines (49 loc) · 1.09 KB
/
main.go
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package main
import (
"context"
"fmt"
"os"
"github.com/libp2p/go-libp2p-swarm"
tcpt "github.com/libp2p/go-tcp-transport"
ma "github.com/multiformats/go-multiaddr"
)
func fatal(i interface{}) {
fmt.Println(i)
os.Exit(1)
}
func main() {
laddr, err := ma.NewMultiaddr("/ip4/0.0.0.0/tcp/5555")
if err != nil {
fatal(err)
}
// create a new swarm with a dummy peer ID, no private key, and no stream muxer
s := swarm.NewBlankSwarm(context.Background(), "bob", nil, nil)
// Add a TCP transport to it
s.AddTransport(tcpt.NewTCPTransport())
// Add an address to start listening on
err = s.AddListenAddr(laddr)
if err != nil {
fatal(err)
}
// Set a handler for incoming connections
s.SetConnHandler(func(c *swarm.Conn) {
fmt.Println("Got a new connection!")
defer c.Close()
buf := make([]byte, 1024)
for {
n, err := c.RawConn().Read(buf)
if err != nil {
fmt.Println(err)
return
}
fmt.Printf("read: %q\n", string(buf[:n]))
_, err = c.RawConn().Write(buf[:n])
if err != nil {
fmt.Println(err)
return
}
}
})
// Wait forever
<-make(chan bool)
}