Index: NmapOps.h
===================================================================
--- NmapOps.h	(revision 32633)
+++ NmapOps.h	(working copy)
@@ -367,6 +367,7 @@
 
   bool traceroute;
   bool reason;
+  bool incomplete;
   bool adler32;
   FILE *excludefd;
   char *exclude_spec;
Index: nmap.cc
===================================================================
--- nmap.cc	(revision 32633)
+++ nmap.cc	(working copy)
@@ -315,6 +315,7 @@
          "  -d: Increase debugging level (use -dd or more for greater effect)\n"
          "  --reason: Display the reason a port is in a particular state\n"
          "  --open: Only show open (or possibly open) ports\n"
+         "  --incomplete: Display results obtained prior to host timeout\n"
          "  --packet-trace: Show all packets sent and received\n"
          "  --iflist: Print host interfaces and routes (for debugging)\n"
          "  --log-errors: Log errors/warnings to the normal-format output file\n"
@@ -608,6 +609,7 @@
     {"ttl", required_argument, 0, 0}, /* Time to live */
     {"traceroute", no_argument, 0, 0},
     {"reason", no_argument, 0, 0},
+    {"incomplete", no_argument, 0, 0},
     {"allports", no_argument, 0, 0},
     {"version_intensity", required_argument, 0, 0},
     {"version-intensity", required_argument, 0, 0},
@@ -912,6 +914,8 @@
           o.traceroute = true;
         } else if (strcmp(long_options[option_index].name, "reason") == 0) {
           o.reason = true;
+        } else if (strcmp(long_options[option_index].name, "incomplete") == 0) {
+          o.incomplete = true;
         } else if (optcmp(long_options[option_index].name, "min-rate") == 0) {
           if (sscanf(optarg, "%f", &o.min_packet_send_rate) != 1 || o.min_packet_send_rate <= 0.0)
             fatal("Argument to --min-rate must be a positive floating-point number");
@@ -1991,7 +1995,7 @@
     for (targetno = 0; targetno < Targets.size(); targetno++) {
       currenths = Targets[targetno];
       /* Now I can do the output and such for each host */
-      if (currenths->timedOut(NULL)) {
+      if (currenths->timedOut(NULL) && !o.incomplete) {
         xml_open_start_tag("host");
         xml_attribute("starttime", "%lu", (unsigned long) currenths->StartTime());
         xml_attribute("endtime", "%lu", (unsigned long) currenths->EndTime());
Index: NmapOps.cc
===================================================================
--- NmapOps.cc	(revision 32633)
+++ NmapOps.cc	(working copy)
@@ -343,6 +343,7 @@
   gettimeofday(&start_time, NULL);
   pTrace = vTrace = false;
   reason = false;
+  incomplete = false;
   adler32 = false;
   if (datadir) free(datadir);
   datadir = NULL;