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simple.go
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simple.go
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// Copyright 2022 Teamgram Authors
// All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Author: teamgramio (teamgram.io@gmail.com)
//
package main
import (
"flag"
"log"
"net"
"strconv"
)
func main() {
port := flag.Int("port", 33333, "Port to accept connections on.")
flag.Parse()
l, err := net.Listen("tcp", ":"+strconv.Itoa(*port))
if err != nil {
log.Panicln(err)
}
log.Println("Listening to connections on port", strconv.Itoa(*port))
defer l.Close()
for {
conn, err := l.Accept()
if err != nil {
log.Panicln(err)
}
tcpConn, _ := conn.(*net.TCPConn)
go handleRequest(tcpConn)
}
}
func handleRequest(conn *net.TCPConn) {
log.Println("Accepted new connection.")
defer conn.Close()
defer log.Println("Closed connection.")
buf := make([]byte, 16192)
for {
size, err := conn.Read(buf)
if err != nil {
return
}
data := buf[:size]
// log.Println("Read new data from connection", data)
conn.Write(data)
}
}