func NewHString(s string) (hstring hstr.HString, err error) {
u16 := windows.StringToUTF16Ptr(s)
len := uint32(utf8.RuneCountInString(s))
err = errors.MaybeError(procWindowsCreateString.Call(
uintptr(unsafe.Pointer(u16)),
uintptr(len),
uintptr(unsafe.Pointer(&hstring))))
return
}
// Create an ExplicitAccess instance denying permissions to the provided name.
func DenyName(accessPermissions uint32, name string) api.ExplicitAccess {
return api.ExplicitAccess{
AccessPermissions: accessPermissions,
AccessMode: api.DENY_ACCESS,
Inheritance: api.SUB_CONTAINERS_AND_OBJECTS_INHERIT,
Trustee: api.Trustee{
TrusteeForm: api.TRUSTEE_IS_NAME,
Name: windows.StringToUTF16Ptr(name),
},
}
}
// https://msdn.microsoft.com/en-us/library/windows/desktop/aa379579.aspx
func SetNamedSecurityInfo(objectName string, objectType int32, secInfo uint32, owner, group *windows.SID, dacl, sacl windows.Handle) error {
ret, _, err := procSetNamedSecurityInfoW.Call(
uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(objectName))),
uintptr(objectType),
uintptr(secInfo),
uintptr(unsafe.Pointer(owner)),
uintptr(unsafe.Pointer(group)),
uintptr(dacl),
uintptr(sacl),
)
if ret != 0 {
return err
}
return nil
}
func (ds *Directory) FreeSpace(cancel <-chan struct{}) (int64, error) {
dir, err := filepath.Abs(ds.Dir)
if err != nil {
return 0, err
}
// TODO: this doesn't look like it's safe under garbage collection
var avail, total, free int64
r1, _, err := getDiskFreeSpaceExW.Call(
uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(dir))),
uintptr(unsafe.Pointer(&avail)),
uintptr(unsafe.Pointer(&total)),
uintptr(unsafe.Pointer(&free)))
if r1 == 0 {
return 0, err
}
return free, nil
}
func TestSetEntriesInAcl(t *testing.T) {
var (
entries = []ExplicitAccess{
{
AccessPermissions: windows.GENERIC_READ,
AccessMode: GRANT_ACCESS,
Inheritance: NO_INHERITANCE,
Trustee: Trustee{
TrusteeForm: TRUSTEE_IS_NAME,
Name: windows.StringToUTF16Ptr("CURRENT_USER"),
},
},
}
acl windows.Handle
)
if err := SetEntriesInAcl(
entries,
0,
&acl,
); err != nil {
t.Fatal(err)
}
defer windows.LocalFree(acl)
}
func SysAllocString(v string) (ss *int16) {
pss, _, _ := procSysAllocString.Call(uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(v))))
ss = (*int16)(unsafe.Pointer(pss))
return
}
