zgrab2

(IPP) improve scan output (#140) * Refactors sending IPP request and handling errors thereof into sendIPPRequest() * Adds dependency of IPP zgrab2 schema on HTTP zgrab2 schema. * Refactors out trying to grab with multiple versions into re-usable function. * Determines whether to output nil result in a concise and accurate manner. * Refactors reading attributes present in IPP response to its own function. Calls that in Grab and augmentWithCUPSData. Formats code using Go fmt. * Rejects successful non-IPP responses with protocol error. Reports HTTP errors. * Removes circular dependency upon http zgrab2 schema. * Changes name of objects to make IPP schema actually work. 2018-06-28 18:58:40 +00:00			`package ipp`