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/*
* ucfunction.cc - Usecode function
*
* Copyright (C) 2002-2022 The Exult Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "ucfunction.h"
#include "endianio.h"
#include <iostream>
using std::istream;
/*
* Read in a function.
*/
Usecode_function::Usecode_function(istream& file) : orig(nullptr) {
id = little_endian::Read2(file);
// support for our extended usecode format. (32 bit lengths and ids)
if (id == 0xfffe) {
id = little_endian::Read4s(file);
len = little_endian::Read4(file);
extended = true;
// older extended usecode format. (32 bit lengths)
} else if (id == 0xffff) {
id = little_endian::Read2(file);
len = little_endian::Read4(file);
extended = true;
} else {
len = little_endian::Read2(file);
extended = false;
}
code = new unsigned char[len]; // Allocate buffer & read it in.
file.read(reinterpret_cast<char*>(code), len);
}
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