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From Sorin Manolache <>
Subject Re: Setting and accessing module specific directory
Date Wed, 08 May 2013 17:34:51 GMT
On 2013-05-08 17:02, Sindhi Sindhi wrote:
> Hi,
> I have written a C++ Apache module that performs filtering of HTML content.
> There are some XML files which are read by this filter when it does the
> filtering. During run-time when this filter is invoked, I'd want the filter
> pick up these XML files and read them. I was thinking these XML files can
> be placed in the server location "C:\Program
> Files\httpd-2.4.4-win64\Apache24\htdocs\MyFilter\". where MyFilter folder
> will contain all the XML files needed by my filter. How do I access this
> location programatically during run-time when the filter is invoked?
> How can I get the absolute path of the server installation loacation
> (C:\Program Files\httpd-2.4.4-win64\Apache24\htdocs\) so that I can append
> "MyFilter\" to the same to get the location of the XML files?
> I have specified the below in httpd.conf file:
> DocumentRoot "C:/Program Files/httpd-2.4.4-win64/Apache24/htdocs"
> ServerRoot "C:/Program Files/httpd-2.4.4-win64/Apache24"
> The signature of my filter looks like this -
> static apr_status_t myHtmlFilter(ap_filter_t *f, apr_bucket_brigade *pbbIn)
> I will need the document root or server root or any other path variable
> that I can access from my filter that will give me the absolute path
> "C:/Program Files/httpd-2.4.4-win64/Apache24"

const char *ap_server_root in http_main.h (apache 2.2. It could be 
similar in 2.4) contains the ServerRoot.

ap_server_root_relative in http_config.h allows you to compose paths 
relative to the ServerRoot.


> Thanks.

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