Re: [squid-users] url check

I have overview the re_match_2( ) function in the GNUregex.c,
and set the debug variable to 1.
But the debug information does not print to /var/log/squid/cache.log.

Do you know how to see the debug information that GNUregex.c file
generate?
Thanks for your help.

Cheers,
Tom

----- Original Message -----
From: "Henrik Nordstrom" <hno@hem.passagen.se>
To: "gis88530" <gis88530@cis.nctu.edu.tw>
Cc: <squid-users@squid-cache.org>
Sent: Friday, April 13, 2001 3:00 PM
Subject: Re: [squid-users] url check

> gis88530 wrote:
>
> > I want to understand how squid perform regular expression match.
> > and
>
> By using regcomp() and regexec() library calls on parts of the received
> URL (different ACL types looks at different parts of the URL, some the
> whole URL). See acl.c.
>
> > If I want to know the packet flow from kernel to squid,
> > then transfer to aclMatchRegex function call.
>
> Squid does not care about packets, it is an application running at the
> application layer of things just as any other TCP/IP server/client
> (Squid is both, acting as a server when receiving requests from the
> browsers, and a client when retreiving the content from the origin
> servers). Packets are dealt with by the underlying OS.
>
> The code for reading the request is in client_side.c. When the request
> has been fully read and some other processing done on the received
> request then the program flow gets to clientAccessCheck() who alls
> aclNBCheck() who calls aclCheck() who calls aclMactchAclList() who calls
> aclMatchAcl() who calls aclMatchRegex().
>
> When the full access check is done clientAccessCheckDone() is called, as
> indicated by clientAccessCheck() in the aclNBCheck() call.
>
> --
> Henrik Nordstrom
> Squid Hacker
>
Received on Thu Apr 19 2001 - 08:31:03 MDT