1
0
mirror of https://github.com/nmap/nmap.git synced 2025-12-07 13:11:28 +00:00
Files
nmap/scripts/dns-recursion.nse
dmiller 40f36a4e3e Some string optimizations in NSE
Changes fall into these categories:

1. Avoid pathological string building. Loops over x = x .. "foo" can
become very slow. Instead, use strbuf.lua, table.concat, or just one
continuous concatenation; a = x .. y .. z is one operation, better than
a = x .. y; a = a .. z

2. Use hex-escaped strings instead of string.char. I find this more
readable in many cases, and it avoids a table lookup and function call.

3. Don't duplicate code. A few libraries and scripts had re-implemented
stdnse.generate_random_string or openssl.rand_bytes.
2014-09-03 04:49:54 +00:00

1.5 KiB