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Add netbios name lookup caching code in order to avoid multiple lookups for

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the same host.ip.
This commit is contained in:
patrik 2012-06-15 21:26:26 +00:00
parent c9c80ffc63
commit c80a28f5f2
1 changed files with 13 additions and 4 deletions
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17
nselib/smb.lua
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@ -278,11 +278,20 @@ function start(host)
end
-- Store the name of the server
status, result = netbios.get_server_name(host.ip)
if(status == true) then
state['name'] = result
local nbcache_mutex = nmap.mutex("Netbios lookup mutex")
nbcache_mutex "lock"
if ( not(host.registry['netbios_name']) ) then
status, result = netbios.get_server_name(host.ip)
if(status == true) then
host.registry['netbios_name'] = result
state['name'] = result
end
else
stdnse.print_debug(2, "SMB: Resolved netbios name from cache")
state['name'] = host.registry['netbios_name']
end
nbcache_mutex "done"
stdnse.print_debug(2, "SMB: Starting SMB session for %s (%s)", host.name, host.ip)
if(port == nil) then