From e742c004b117305fd4b76945135eb533d774ac64 Mon Sep 17 00:00:00 2001
From: fyodor <fyodor@e0a8ed71-7df4-0310-8962-fdc924857419>
Date: Sun, 25 Jun 2006 05:01:12 +0000
Subject: [PATCH] update usage screen

---
 nmap.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/nmap.cc b/nmap.cc
index 16daad32b..7103950cc 100644
--- a/nmap.cc
+++ b/nmap.cc
@@ -232,7 +232,9 @@ printf("%s %s ( %s )\n"
        "  --version-all: Try every single probe (intensity 9)\n"
        "  --version-trace: Show detailed version scan activity (for debugging)\n"
        "OS DETECTION:\n"
-       "  -O: Enable OS detection\n"
+       "  -O: Enable OS detection (try 2nd generation, then 1st if that fails)\n"
+       "  -O1: Only use the old (1st generation) OS detection system\n"
+       "  -O2: Only use the new OS detection system (no fallback)\n"
        "  --osscan-limit: Limit OS detection to promising targets\n"
        "  --osscan-guess: Guess OS more aggressively\n"
        "TIMING AND PERFORMANCE:\n"