Updated all the stray calls to rand() to use nbase_rnd instead. The

only code left in Nmap that still uses rand() is in the Lua math 
library.  Perhaps at some point we'll need to expose high-quality random 
numbers to Lua via our custom nmap library.

nmap.cc

@@ -505,7 +505,6 @@ int nmap_main(int argc, char *argv[]) {
   size_t sslen;
   int option_index;
   bool iflist = false;
-  struct timeval tv;
 
   // Pre-specified timing parameters.
   // These are stored here during the parsing of the arguments so that we can
@@ -649,10 +648,6 @@ int nmap_main(int argc, char *argv[]) {
 
   if (argc < 2 ) printusage(argv[0], -1);
 
-  /* You never know when "random" numbers will come in handy ... */
-  gettimeofday(&tv, NULL);
-  srand((tv.tv_sec ^ tv.tv_usec) ^ getpid() + 31337);
-
   Targets.reserve(100);
 #ifdef WIN32
   win_pre_init();