Things that bugs me: cast to (long) when they should use intptr_t. EDIT: And gettoken() should check against buffer: index < sizeof token. EDIT 2: And I'd sto

Things that bugs me: cast to (long) when they should use intptr_t. EDIT: And gettoken() should check against buffer: index < sizeof token. EDIT 2: And I'd store the tag in a separate variable, because bit abuse in a pointer is plain and simply asking for problems.