/*
 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

// Support for detecting Mac OS X Versions

#include <math.h>
#include <stdlib.h>
#include <stdio.h>
#import <JavaRuntimeSupport/JavaRuntimeSupport.h>


// returns 10.7 for Lion, 10.6 for SnowLeopard etc.
double getOSXMajorVersion() {
    char *version = JRSCopyOSVersion();

    if (version == NULL) return 0.0;

    char temp[32];
    strlcpy(temp, version, sizeof(temp));
    free(version);

    if (strlen(temp) < 3) {
        return 0.0;
    }

    if (temp[2] != '.')  { // Third char must be a '.'
        return 0.0;
    }

    char *ptr = strchr(temp+3, '.'); // remove the second . if one exists.
    if (ptr != NULL) {
        *ptr = 0;
    }

    return atof(temp);
}


BOOL isSnowLeopardOrLower() {
    return (getOSXMajorVersion() < 10.7);
}