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tcpRelay.go
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/
tcpRelay.go
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package main
import (
"bufio"
"fmt"
"net"
"os"
)
func runTCPServer(address string) {
l, err := net.Listen("tcp", address)
if err != nil {
return
}
defer l.Close()
for {
conn, err := l.Accept()
if err != nil {
return
}
go handleConnection(conn)
}
}
func handleConnection(c net.Conn) {
defer c.Close()
for {
userInput, err := bufio.NewReader(c).ReadString('\n')
if err != nil {
return
}
fmt.Println(userInput)
sendData(userInput)
}
}
func sendDataOverTCP(data string) {
tcpAddr, err := net.ResolveTCPAddr("tcp", relayTo)
if err != nil {
println("Resolve failed:", err.Error())
os.Exit(1)
}
conn, err := net.DialTCP("tcp", nil, tcpAddr)
if err != nil {
println("Dial failed:", err.Error())
os.Exit(1)
}
_, err = conn.Write([]byte(data))
if err != nil {
println("Write to server failed:", err.Error())
os.Exit(1)
}
conn.Close()
}