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47 lines
1.0 KiB
47 lines
1.0 KiB
package dial
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import (
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"fmt"
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"net"
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"time"
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)
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func PortDial(address, port, protocol string, timeout int) {
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ip := digIp(address)
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if ip == "" {
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fmt.Printf("%v ping: %v: Name or service not known\n", protocol, address)
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return
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}
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fmt.Printf("%v ping %v (%v) via port %v (timeout: %vs)...\n", protocol, address, ip, port, timeout)
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dialTarget := ip + ":" + port
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for {
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startTime := time.Now()
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conn, err := net.DialTimeout(protocol, dialTarget, time.Duration(timeout)*time.Second)
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endTime := time.Now()
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elapsedTime := float64(endTime.Sub(startTime)) / float64(time.Millisecond)
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if err != nil {
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fmt.Printf("TIMEOUT via %v:%v time=%v ms\n", ip, port, elapsedTime)
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time.Sleep(time.Duration(timeout) * time.Second)
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} else {
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err := conn.Close()
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if err != nil {
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return
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}
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fmt.Printf("OK via %v:%v time=%v ms\n", ip, port, elapsedTime)
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time.Sleep(time.Duration(1) * time.Second)
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continue
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}
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}
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}
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func digIp(address string) string {
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ip, err := net.ResolveIPAddr("ip", address)
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if err != nil {
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return ""
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}
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return ip.String()
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}
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