Linux source in C which implementsto change camera resolution of the ONVIF specification

Linux source in C code is needded which implements change camera resolution of the ONVIF specification. 1) Discovery is described in the documentation; it is a specialized implementation of the WS-Discovery protocol. With discovery, sending a multicast discovery message should get all ONVIF compliant devices on the network to send their capabilities. Among the things they send is an XML tag called <d:XAddrs>[login to view URL]</d:XAddrs> (d: is the namespace) and there is where I connect to to begin the next step. 2) Simple requests. This I have already done, but have done with the CURL library, and want to do without the library. (did with using wireshark learning the commands) 3) Complex requests - the end result of what we want is to be able to do is to change camera resolution to any of the camera's possibilities.. The requests for doing things like this require SOAP requests with authentication, which is the complex part of the request, and one which I have not begun to see how to accomplish (although CURL does seem to support authenticated requests, so perhaps with the library it will not be too difficult. Supply Support and explanation with in source code. Prefered is ONVIF experiancewho have onvif cammera. Please write in first sentence in bid if u already develop onvif protocol written here: "I can develop Linux source in C source code which implements change camera resolution of the ONVIF specification,I have already developed onvif webservice and commands with ONVIF cammera's in X hours in this bid price." + "I can finish the job in X days from now." Thank u.