/*
 * Copyright (C) 2022 Oracle.
 *
 * 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, see http://www.gnu.org/copyleft/gpl.txt
 */

#include "smatch.h"
#include "smatch_extra.h"
#include "smatch_slist.h"

static int my_id;

static void check_size_t(const char *fn, struct expression *expr, void *unused)
{
	struct symbol *type;

	type = get_type(expr->left);
	if (types_equiv(type, &long_ctype) ||
            types_equiv(type, &ulong_ctype))
		return;
	sm_msg("saving '%s' to type '%s'", fn, type_to_str(type));
}

void check_overflow_truncated(int id)
{
	my_id = id;

	if (option_project != PROJ_KERNEL)
		return;
	add_function_assign_hook("size_mul", &check_size_t, NULL);
	add_function_assign_hook("size_add", &check_size_t, NULL);
	add_function_assign_hook("size_sub", &check_size_t, NULL);
	add_function_assign_hook("__ab_c_size", &check_size_t, NULL);
	add_function_assign_hook("array_size", &check_size_t, NULL);
	add_function_assign_hook("array3_size", &check_size_t, NULL);

}