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Fixes crash when attempting to sort services that have no port.

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patrik
2010-06-15 18:18:09 +00:00
parent 7c658dd3fd
commit b6744a3b6c
1 changed files with 2 additions and 2 deletions
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4
scripts/dns-service-discovery.nse
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@@ -95,8 +95,8 @@ end
-- @param b table containing second item
-- @return true if the port of a is less than the port of b
local function serviceCompare(a, b)
local port_a = a.name:match("^(%d+)")
local port_b = b.name:match("^(%d+)")
local port_a = a.name:match("^(%d+)") or 0
local port_b = b.name:match("^(%d+)") or 0
if ( tonumber(port_a) < tonumber(port_b) ) then
return true