internal unsafe void ToNative(ref NativeAuthorizationItemSet native)
{
var nativeItems = (NativeAuthorizationItem *)Marshal.AllocHGlobal(
sizeof(NativeAuthorizationItem) * items.Count);
native.count = items.Count;
native.items = nativeItems;
for (int i = 0; i < native.count; i++)
{
var item = items [i];
nativeItems [i].flags = item.Flags;
nativeItems [i].name = Marshal.StringToHGlobalAuto(item.Name);
if (item.Value == null)
{
nativeItems [i].value = IntPtr.Zero;
nativeItems [i].valueLen = IntPtr.Zero;
}
else
{
nativeItems [i].value = Marshal.StringToHGlobalAuto(item.Value);
nativeItems [i].valueLen = (IntPtr)item.Value.Length;
}
}
}
public static Authorization Create(
AuthorizationRights rights,
AuthorizationEnvironment environment,
AuthorizationFlags flags)
{
NativeAuthorizationItemSet rightsNative = new NativeAuthorizationItemSet();
NativeAuthorizationItemSet *rightsPtr = null;
NativeAuthorizationItemSet envNative = new NativeAuthorizationItemSet();
NativeAuthorizationItemSet *envPtr = null;
int code;
IntPtr auth;
try {
if (rights != null && rights.Count > 0)
{
rights.ToNative(ref rightsNative);
rightsPtr = &rightsNative;
}
if (environment != null)
{
environment.ToAuthorizationItemSet().ToNative(ref envNative);
if (envNative.count > 0)
{
envPtr = &envNative;
}
}
code = AuthorizationCreate(rightsPtr, envPtr, flags, out auth);
if (code != 0)
{
return(null);
}
return(new Authorization(auth));
} finally {
AuthorizationItemSet.FreeNative(rightsPtr);
AuthorizationItemSet.FreeNative(envPtr);
}
}
