diff -ru nmap-4.50/nmap.cc nmap-4.50+iPhone/nmap.cc
--- nmap-4.50/nmap.cc	2007-11-03 01:31:02.000000000 +0000
+++ nmap-4.50+iPhone/nmap.cc	2007-12-24 21:19:34.000000000 +0000
@@ -1826,6 +1826,7 @@
 
     nmap_free_mem();
   }
+  _exit(0);
   return 0;
 }