commit 4969650

Add port if missing (v2) and don't set keepalives

 1@@ -168,38 +168,25 @@ func (app *App) connect() {
 2 
 3 func (app *App) tryConnect() (err error) {
 4 	addr := app.cfg.Addr
 5-	host, port, err := net.SplitHostPort(addr)
 6-	if err != nil {
 7-		return err
 8-	}
 9-	if port == "" {
10+	colonIdx := strings.LastIndexByte(addr, ':')
11+	bracketIdx := strings.LastIndexByte(addr, ']')
12+	if colonIdx <= bracketIdx {
13+		// either colonIdx < 0, or the last colon is before a ']' (end
14+		// of IPv6 address. -> missing port
15 		if app.cfg.NoTLS {
16-			port = "6667"
17+			addr += ":6667"
18 		} else {
19-			port = "6697"
20+			addr += ":6697"
21 		}
22 	}
23 
24-	peerAddr, err := net.ResolveTCPAddr("tcp", net.JoinHostPort(host, port))
25-	if err != nil {
26-		return
27-	}
28-
29-	tcpConn, err := net.DialTCP("tcp", nil, peerAddr)
30+	conn, err := net.Dial("tcp", addr)
31 	if err != nil {
32 		return
33 	}
34-	if err = tcpConn.SetKeepAlivePeriod(1 * time.Minute); err != nil {
35-		tcpConn.Close()
36-		return
37-	}
38-	if err = tcpConn.SetKeepAlive(true); err != nil {
39-		tcpConn.Close()
40-		return
41-	}
42 
43-	var conn net.Conn = tcpConn
44 	if !app.cfg.NoTLS {
45+		host, _, _ := net.SplitHostPort(addr) // should succeed since net.Dial did.
46 		conn = tls.Client(conn, &tls.Config{
47 			ServerName: host,
48 			NextProtos: []string{"irc"},