[QPID-4792] Windows UUID processing mingles GUID values

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.20
• Fix Version/s: 0.23
• Component/s: C++ Broker, C++ Client

Environment

Windows

• Assignee: Clifford Jansen
• Reporter: Clifford Jansen
• Created: 30/Apr/13 16:50
• Updated: 08/Sep/13 13:37
• Resolved: 02/May/13 18:22

Description

RFC 4122 defines a UUID. A GUID is the same as a UUID in string form, but differs in binary layout. Microsoft operates with GUIDs but confusingly labels them as UUIDs in their documentation and include files.

i.e. rpcdce.h: typedef GUID UUID;

The binary form matters since it is used over the wire. Mapping a GUID to a UUID (or vice versa) without the layout conversion results in structures with mangled RFC version info and different string representations on Windows and non-Windows systems.

Proton currently only calls Microsoft APIs to obtain the string representation of the UUID (which will match the GUID), so it is unaffected.