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add nil checks to address bug discovered by Mike

Browse source 
http://seclists.org/nmap-dev/2014/q2/120
This commit is contained in:
patrik 2014-04-17 01:00:01 +00:00
parent d2009ab250
commit 91e1d21cc1
2 changed files with 6 additions and 0 deletions
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3
scripts/snmp-ios-config.nse
View file

@ -179,6 +179,9 @@ action = function(host, port)
local result
result = snmp.fetchFirst(response)
if not result then
return
end
if result == 3 then
result = ( infile and infile:getContent() )

3
scripts/snmp-sysdescr.nse
View file

@ -93,6 +93,9 @@ action = function(host, port)
try(socket:close())
local uptime = snmp.fetchFirst(response)
if not uptime then
return
end
local days, hours, minutes, seconds, htime, mtime, stime
days = math.floor(uptime / 8640000)