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golang-exercises
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Added ability to use custom ports

This commit is contained in:
raul 2024-03-10 09:21:02 +01:00
parent a41033f150
commit 08040ef9c9
1 changed files with 8 additions and 3 deletions
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11
sockets/main.go
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@ -8,10 +8,15 @@ import (
"strings" "strings"
) )
var LISTENING_PORT string = ":1302"
func main() { func main() {
ln, err := net.Listen("tcp", ":1302") if len(os.Args) != 1 {
LISTENING_PORT = ":" + os.Args[1]
}
ln, err := net.Listen("tcp", LISTENING_PORT)
catchErr(err) catchErr(err)
fmt.Printf("Listening on port 1302...\n") fmt.Printf("Listening on port %v...\n", strings.TrimLeft(LISTENING_PORT, ":"))
for { for {
conn, err := ln.Accept() conn, err := ln.Accept()
@ -27,7 +32,7 @@ func handleConn(conn net.Conn) {
catchErr(err) catchErr(err)
fmt.Printf("Message received: %v", string(message)) fmt.Printf("Message received: %v", string(message))
newMsg := strings.ToUpper(message) newMsg := strings.ToUpper(message)
conn.Write([]byte(newMsg + "\n")) conn.Write([]byte(newMsg))
} }
func catchErr(err error) (errHappened bool) { func catchErr(err error) (errHappened bool) {