Nmap Development: Re: [NSE patch] port or service not matching ports

[Sven Klemm <sven () c3d2 de>]

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Sven Klemm wrote:
> Hi everyone,
>
> the port_or_service function in the shortport library does not match
> ports because the port variable passed to portnumber is shadowed by
> the variable passed during portrule check. The attached patch fixes
> this behaviour.
You can verify the bug with the following lua code:

sven () pinealgland:code/nmap/nselib> lua
Lua 5.1.2  Copyright (C) 1994-2007 Lua.org, PUC-Rio
> require 'shortport'
> print(
shortport.port_or_service(80,{})({},{protocol='tcp',state='open',number=80})
)
false
>
The function returned by port_or_service does not return true for port
80 even though it has been created for port 80. With the patch
applied the port_or_service function correctly returns the expected
results for numerical ports.

Cheers,
Sven

- --
Sven Klemm
http://cthulhu.c3d2.de/~sven/

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