jdk/src/share/native/common/jdk_util.c

/*
 * Copyright 2005 Sun Microsystems, Inc.  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.  Sun designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */

#include <stdlib.h>
#include <string.h>

#include "jvm.h"
#include "jdk_util.h"

#ifndef JDK_UPDATE_VERSION
   /* if not defined set to 00 */
   #define JDK_UPDATE_VERSION "00"
#endif

JNIEXPORT void
JDK_GetVersionInfo0(jdk_version_info* info, size_t info_size) {
    /* These JDK_* macros are set at Makefile or the command line */
    const unsigned int jdk_major_version =
        (unsigned int) atoi(JDK_MAJOR_VERSION);
    const unsigned int jdk_minor_version =
        (unsigned int) atoi(JDK_MINOR_VERSION);
    const unsigned int jdk_micro_version =
        (unsigned int) atoi(JDK_MICRO_VERSION);

    const char* jdk_build_string = JDK_BUILD_NUMBER;
    unsigned int jdk_build_number = 0;

    const char* jdk_update_string = JDK_UPDATE_VERSION;
    unsigned int jdk_update_version = 0;
    char update_ver[3];
    char jdk_special_version = '\0';

    /* If the JDK_BUILD_NUMBER is of format bXX and XX is an integer
     * XX is the jdk_build_number.
     */
    if (strlen(jdk_build_string) == 3) {
        if (jdk_build_string[0] == 'b' &&
            jdk_build_string[1] >= '0' && jdk_build_string[1] <= '9' &&
            jdk_build_string[2] >= '0' && jdk_build_string[2] <= '9') {
            jdk_build_number = (unsigned int) atoi(&jdk_build_string[1]);
        }
    }
    if (strlen(jdk_update_string) == 2 || strlen(jdk_update_string) == 3) {
        if (jdk_update_string[0] >= '0' && jdk_update_string[0] <= '9' &&
            jdk_update_string[1] >= '0' && jdk_update_string[1] <= '9') {
            update_ver[0] = jdk_update_string[0];
            update_ver[1] = jdk_update_string[1];
            update_ver[2] = '\0';
            jdk_update_version = (unsigned int) atoi(update_ver);
            if (strlen(jdk_update_string) == 3) {
                jdk_special_version = jdk_update_string[2];
            }
        }
    }


    memset(info, 0, sizeof(info_size));
    info->jdk_version = ((jdk_major_version & 0xFF) << 24) |
                        ((jdk_minor_version & 0xFF) << 16) |
                        ((jdk_micro_version & 0xFF) << 8)  |
                        (jdk_build_number & 0xFF);
    info->update_version = jdk_update_version;
    info->special_update_version = (unsigned int) jdk_special_version;
    info->thread_park_blocker = 1;
}