[syslog-ng] problem with matching IP address and \d regex operand

[Robert Fekete]

Hi,

I don't know much about regexps, but couldn't you cover this with the netmask()
filter?

Regards,

Robert

Phil.Newlon at wendysarbys.com wrote:

> 
> I am using this regular expression with Kiwi Syslog to distribute messages
> to several destinations based on the last number of the third octet (0-4
> goes one place, 5-9 goes another).
> 
>      "10\.\d+\.\d*[0-4]\."
> 
> This doesn't work with syslog-ng, of course, but based on my research of
> the archives, this should do the same thing because I've escaped the "\d"
> 
>      match("10\.\\d+\.\\d*[0-4]\.")
> 
> Nope, I get nothing.  I've shortened it to just
> 
>      match("10\.\\d+")
> 
> and still get no matching messages.
> 
> This sort of works, but gives some unexpected results:
> 
>      match("10\.[0-9]+\.[0-9]*[0-4]\.")
> 
> The match("10\.[0-9]+\.[0-9]*[0-4]\.") statement resulted in 'true' on this
> log message.  I didn't expect a match on 10.87.48.4 from it because of the
> '8' as the last number of the third octet not matching '0-4'
> 
> Oct 29 16:31:20 10.87.48.4 Kiwi_Syslog_Daemon Oct 29 16:31:20 10.87.48.4
> MSWinEventLog  0       Security        71000   Thu Oct 29 16:31:17 2009
> 538     Security        pos     User    Success Audit   POS0408748
> Logon/Logoff            User Logoff:     User Name: pos     Domain:
> POS0408748     Logon ID:  (0x0,0x4ACB69)     Logon Type: 3         42921033
> 
> 
> 
> So, I have two questions.....
> 
> What's wrong with this:
> 
>      match("10\.\\d+\.\\d*[0-4]\.")
> 
> And why did this
>    match("10\.[0-9]+\.[0-9]*[0-4]\.")
> match this
>      Oct 29 16:31:20 10.87.48.4 Kiwi_Syslog_Daemon Oct 29 16:31:20
> 10.87.48.4 MSWinEventLog  0       Security        71000   Thu Oct 29
> 16:31:17 2009        538     Security        pos     User    Success Audit
> POS0408748      Logon/Logoff            User Logoff:     User Name: pos
> Domain:  POS0408748     Logon ID:  (0x0,0x4ACB69)     Logon Type: 3
> 42921033
> 
> Thanks!
> 
> Phil
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