[PATCH] Start with proto 0 when doing -sO -p-

[Kris Katterjohn <katterjohn () gmail com>]

The attached patch (/nmap-exp/kris SVN r4346) makes -p- start with 0
instead of 1 when using -sO (IP proto scan).

Let's say we did 'nmap -sO -p-10 insecure.org' before. Nmap would scan
protocols 1-10. Now it will scan 0-10. It's been including 0 as it
should normally, unless a range starting with - was used.

I've tested it and I haven't had any problems, but please tell me if it
breaks anything. I'll commit to /nmap later if no problems are seen.

Thanks,
Kris Katterjohn

Index: nmap.cc
===================================================================
--- nmap.cc     (revision 4345)
+++ nmap.cc     (revision 4346)
@@ -1906,7 +1906,7 @@
        continue;
     }
     if (*current_range == '-') {
-      rangestart = 1;
+      rangestart = o.ipprotscan ? 0 : 1;
     }
     else if (isdigit((int) *current_range)) {
       rangestart = strtol(current_range, &endptr, 10);


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