mirror of
https://github.com/rwinkhart/go-winio.git
synced 2026-08-29 13:26:51 -04:00
Hamza El-Saawy
9f0d5dc7d2
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>
65 lines
1.8 KiB
Go
65 lines
1.8 KiB
Go
//go:build windows
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// Code generated by 'go generate' using "github.com/Microsoft/go-winio/tools/mkwinsyscall"; DO NOT EDIT.
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package fs
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import (
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"syscall"
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"unsafe"
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"golang.org/x/sys/windows"
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)
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var _ unsafe.Pointer
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// Do the interface allocations only once for common
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// Errno values.
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const (
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errnoERROR_IO_PENDING = 997
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)
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var (
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errERROR_IO_PENDING error = syscall.Errno(errnoERROR_IO_PENDING)
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errERROR_EINVAL error = syscall.EINVAL
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)
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// errnoErr returns common boxed Errno values, to prevent
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// allocations at runtime.
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func errnoErr(e syscall.Errno) error {
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switch e {
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case 0:
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return errERROR_EINVAL
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case errnoERROR_IO_PENDING:
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return errERROR_IO_PENDING
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}
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// TODO: add more here, after collecting data on the common
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// error values see on Windows. (perhaps when running
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// all.bat?)
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return e
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}
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var (
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modkernel32 = windows.NewLazySystemDLL("kernel32.dll")
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procCreateFileW = modkernel32.NewProc("CreateFileW")
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)
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func CreateFile(name string, access AccessMask, mode FileShareMode, sa *windows.SecurityAttributes, createmode FileCreationDisposition, attrs FileFlagOrAttribute, templatefile windows.Handle) (handle windows.Handle, err error) {
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var _p0 *uint16
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_p0, err = syscall.UTF16PtrFromString(name)
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if err != nil {
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return
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}
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return _CreateFile(_p0, access, mode, sa, createmode, attrs, templatefile)
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}
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func _CreateFile(name *uint16, access AccessMask, mode FileShareMode, sa *windows.SecurityAttributes, createmode FileCreationDisposition, attrs FileFlagOrAttribute, templatefile windows.Handle) (handle windows.Handle, err error) {
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r0, _, e1 := syscall.Syscall9(procCreateFileW.Addr(), 7, uintptr(unsafe.Pointer(name)), uintptr(access), uintptr(mode), uintptr(unsafe.Pointer(sa)), uintptr(createmode), uintptr(attrs), uintptr(templatefile), 0, 0)
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handle = windows.Handle(r0)
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if handle == windows.InvalidHandle {
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err = errnoErr(e1)
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}
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return
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}
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