fix for lonely peers in networks with only one peer, especially intranet peers

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4858 6c8d7289-2bf4-0310-a012-ef5d649a1542

source/de/anomic/yacy/yacySeed.java

@@ -858,7 +858,7 @@ public class yacySeed {
         // check IP
         final String ip = (String) this.dna.get(yacySeed.IP);
         if (ip == null) return "IP is null";
-        if (ip.length() < 8) return "IP is too short: " + ip;
+        if (ip.length() > 0 && ip.length() < 8) return "IP is too short: " + ip;
         if (!natLib.isProper(ip)) return "IP is not proper: " + ip; //this does not work with staticIP
         if (ip.equals("localhost") || ip.startsWith("127.") || (ip.startsWith("0:0:0:0:0:0:0:1"))) return "IP for localhost rejected";