[cups.development] Facing error 'Request from "localhost" using invalid Host : field "/private/var/run/cupsd"' after applying Mac security update 2009-001 on Mac OS 10.5

Mangesh Kute kmangesh at novell.com
Wed Feb 25 08:56:27 PST 2009

Hi All, 

We provide print client "iPrint" on Mac using CUPS API, to work with Novell iPrint server. 
We connect to local CUPS server by giving host name as "/private/var/run/cupsd"(value returned by cupsServer()). After connecting successfully when we send any request on this connection, it returns an error "HTTP_BAD_REQUEST". In CUPS error log, we are seeing error 'Request from "localhost" using invalid Host : field "/private/var/run/cupsd"' 

Does anyone have any idea on the reason for error ? 

We are seeing this error after applying "Mac Security Update 2009-001' on Mac OS10.5. But if we install Mac combo update 10.5.6, we are not seeing this error and communication goes fine with local cups server. 

Is "CUPS 1.3.8" provided on Mac OS X 10.5  customized for MAC and is it different from source code available at http://svn.easysw.com/public/cups/tags/release-1.3.8/  (I am not able to locate above error in this source code) ?  From where can I get source code for "CUPS 1.3.8" provided on Mac OS X 10.5 ? 

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