Where ever possible, use `golang.org/x/sys/windows` instead of `syscall`
(which has been deprecated since go1.11).
Using `windows.LocalFree` requires using `unsafe.Pointer`, which ensures
that the Go garbage collector does not try to free memory pre-maturely
if it was previously declared as a pointer.
Since `syscall.Handle` is part of API for `vhd` package, it was left
unchanged.
For security descriptor functions, switch to using
`windows.SECURITY_DESCRIPTOR` to avoid unnecessary byte manipulation and
panics due to missing input validation and error checking.
Signed-off-by: Hamza El-Saawy <hamzaelsaawy@microsoft.com>
These packages had incorrect error handling for their generated syscall
bindings. The functions they were calling returned errors directly, but
the binding was written such that the generated code was calling
GetLastError instead.
Thankfully, this did not affect the detection of whether or not an error
had occurred, it only caused the value returned in the case of an error
to be not the right error code.
Signed-off-by: Kevin Parsons <kevpar@microsoft.com>
Hamza El-Saawy