Merge pull request projectdiscovery#208 from projectdiscovery/126-bug…

…fix-nmap-cli

Skipping nmap if no open ports were found

v2/pkg/runner/nmap.go

@@ -35,6 +35,12 @@ func (r *Runner) handleNmap() {
 			ports = append(ports, fmt.Sprintf("%d", p))
 		}
 
+		// if we have no open ports we avoid running nmap
+		if len(ports) == 0 {
+			gologger.Info().Msgf("Skipping nmap scan as no open ports were found")
+			return
+		}
+
 		portsStr := strings.Join(ports, ",")
 		ipsStr := strings.Join(ips, ",")
 
@@ -48,7 +54,7 @@ func (r *Runner) handleNmap() {
 			cmd.Stdout = os.Stdout
 			err := cmd.Run()
 			if err != nil {
-				gologger.Error().Msgf("Could not get network interfaces: %s\n", err)
+				gologger.Error().Msgf("Could not run nmap command: %s\n", err)
 				return
 			}
 		} else {