I recently used mkwinsyscall for the functions around creating AppContainers (e.g. https://docs.microsoft.com/en-us/windows/win32/api/userenv/nf-userenv-createappcontainerprofile)
e.g. Something like: //sys CreateAppContainerProfile(name *uint16, displayName *uint16, description *uint16, caps *windows.SIDAndAttributes, capsCount uint32, outSid **windows.SID) (hres error) = Userenv.CreateAppContainerProfile (N.B. I would rather have used string type rather than *uint16 but there was no way to signal that this is a UTF-16 function prototype as the function name doesn't end in W, so the generated code used *uint8 - not the point of this discussion but I wonder if an annotation to //sys lines can be added to indicate generate UTF-16) The error that is returned is an HRESULT, though mkwinsyscall treats it as a syscall.Errno. This works fine for printing the error, but I had hoped to use errors.Is(err, os.ErrExist) to handle the already exists case. This picks up ERROR_ALREADY_EXISTS (0xB7) but unfortunately because CreateAppContainerProfile returns an HRESULT, it returns 0x800700B7, so errors.Is(err, os.ErrExist) returns false So I suppose my question is, what is the best way to handle this? - Should a hack be added to Errno functions (or even a wrapper around Errno creation?) to mask off the first word if it's 0x8007? - Should HRESULT be a different type to Errno much like I noticed someone recently added NTSTATUS (along with a way to mark an error as so in mkwinsyscall)? Can begin to implement Errors.Is for the Win32 facility at least. Hope I've made this clear.. Thanks, Alex -- *This electronic message contains information from Ava Security/Ava federal, which may be privileged or confidential. The information is intended for use only by the individual(s) or entity named above. If you are not the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this information is strictly prohibited. If you have received this electronic message in error, please notify the sender. Activity and use of the Ava Security Limited/Ava Federal email system is monitored to secure its effective operation and for other lawful business purposes. Communications using this system will also be monitored and may be recorded to secure effective operation and for other lawful business purposes. * -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/42c90497-41a0-4470-80ed-5d45b502e10bn%40googlegroups.com.
