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Exit the script cleanly rather than throwing an error when attempting to

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receive_bytes() from a portmapper service which fails to respond with data.
This commit is contained in:
jah
2009-08-08 01:51:32 +00:00
parent 860686e001
commit 8341de219a
1 changed files with 9 additions and 1 deletions
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10
scripts/rpcinfo.nse
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@@ -52,7 +52,15 @@ action = function(host, port)
local request = bin.pack('>IIIIIIILL',0x80000028,transaction_id,0,2,100000,2,4,0,0) local request = bin.pack('>IIIIIIILL',0x80000028,transaction_id,0,2,100000,2,4,0,0)
try(socket:send(request)) try(socket:send(request))
local answer = try(socket:receive_bytes(1)) local status, answer = socket:receive_bytes(1)
if not status then
stdnse.print_debug(1, "%s failed to receive a response from %s:%d with error: %s",
filename:match( "[\\/]([^\\/]+)\.nse$" ) or filename,
host.ip, port.number,
answer or "unknown")
socket:close()
return nil
end
local _,offset,header,length,tx_id,msg_type,reply_state,accept_state,value,payload,last_fragment local _,offset,header,length,tx_id,msg_type,reply_state,accept_state,value,payload,last_fragment
last_fragment = false; offset = 1; payload = '' last_fragment = false; offset = 1; payload = ''