AddressBook: add -d option to lookupdest command line which deletes a hostname if it exists in the addressbook

core/java/src/net/i2p/client/naming/LookupDest.java

@@ -96,6 +96,23 @@ public class LookupDest {
         return rv;
     }
 
+    private static boolean deleteHostname(I2PAppContext ctx, String hostname) {
+        try {
+            Destination dest = lookupHostname(I2PAppContext.getGlobalContext(), hostname);
+            if (dest == null)
+                System.err.println("Destination not found!");
+            else {
+                NamingService ns = I2PAppContext.getGlobalContext().namingService();
+                if (ns != null)
+                    return ns.remove(hostname, dest);
+                System.err.print("ns is null");
+            }
+        } catch (I2PSessionException ise) {
+            ise.printStackTrace();
+        }
+        return false;
+    }
+
     /**
      * @since 0.9.40 split out from above
      */
@@ -130,14 +147,22 @@ public class LookupDest {
             System.err.println("Usage: LookupDest hostname|b32");
             System.exit(1);
         }
-        try {
-            Destination dest = lookupHostname(I2PAppContext.getGlobalContext(), args[0]);
-            if (dest == null)
-                System.err.println("Destination not found!");
-            else
-                System.out.println(dest.toBase64());
-        } catch (I2PSessionException ise) {
-            ise.printStackTrace();
+        if (args[0].length() == 1) {
+            try {
+                Destination dest = lookupHostname(I2PAppContext.getGlobalContext(), args[0]);
+                if (dest == null)
+                    System.err.println("Destination not found!");
+                else
+                    System.out.println(dest.toBase64());
+            } catch (I2PSessionException ise) {
+                ise.printStackTrace();
+            }
         }
+        if (args[0].length() == 2) {
+            if (args[0] == "-d") { 
+                deleteHostname(I2PAppContext.getGlobalContext(), args[1]);
+            }
+        }
+
     }
 }