fix: do not crash if wifi is not connected (#27)

pkg/find/find.go

@@ -46,7 +46,7 @@ func (f *Finder) Run(args Args) error {
 	}
 	fmt.Printf("Found %d IP addresses\n", len(ipv4List))
 
-	fmt.Printf("Zear IP addresses (user: %s)...\n", args.User)
+	fmt.Printf("Scanning IP addresses (user: %s)...\n", args.User)
 	start := time.Now()
 	f.findArgs = args
 	f.totalIPs = ipv4List

pkg/networking/networking.go

@@ -146,7 +146,7 @@ func (n *networkingManager) getIfaceToConMap() (map[string]string, error) {
 		return nil, fmt.Errorf("error getting network interfaces: %w", err)
 	}
 
-	r := regexp.MustCompile(`([\w ]+)\s+([a-z0-9-]+)\s+(\w+)\s+(\w+)`)
+	r := regexp.MustCompile(`([\w ]+)\s+([a-z0-9-]+)\s+(\w+)\s+([\w-]+)`)
 
 	lines := strings.Split(stdout, "\n")
 	data := make(map[string]string)
@@ -156,9 +156,13 @@ func (n *networkingManager) getIfaceToConMap() (map[string]string, error) {
 		}
 		matches := r.FindStringSubmatch(line)
 		if len(matches) < 5 {
-			return nil, fmt.Errorf("error parsing network interfaces: %s", line)
+			return nil, fmt.Errorf("error parsing network interfaces: '%s'", line)
+		}
+		// Detect if the interface is not connected
+		if matches[4] == "--" {
+			n.log.Debug().Str("name", matches[3]).Str("uuid", matches[2]).Msg("Skipping connection, no device connected")
+			continue
 		}
-
 		data[matches[4]] = matches[2]
 	}