VOID __stdcall RtlCopyString(STRING *DestinationString, STRING *SourceString, STRING *a3){
unsigned __int64 MaximumLength;
DestinationString->Length = 0;
if( SourceString )
{
MaximumLength = DestinationString->MaximumLength;
if( SourceString->Length <= MaximumLength )
MaximumLength = SourceString->Length;
DestinationString->Length = MaximumLength;
memmove((UINT8 *)DestinationString->Buffer, (UINT8 *)SourceString->Buffer, MaximumLength);
}
}