0N/A/*
2362N/A * Copyright (c) 1997, 1999, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A
0N/A/*
0N/A * Native method support for java.util.zip.CRC32
0N/A */
0N/A
0N/A#include "jni.h"
0N/A#include "jni_util.h"
5353N/A#include <zlib.h>
0N/A
0N/A#include "java_util_zip_CRC32.h"
0N/A
0N/AJNIEXPORT jint JNICALL
0N/AJava_java_util_zip_CRC32_update(JNIEnv *env, jclass cls, jint crc, jint b)
0N/A{
0N/A Bytef buf[1];
0N/A
0N/A buf[0] = (Bytef)b;
0N/A return crc32(crc, buf, 1);
0N/A}
0N/A
0N/AJNIEXPORT jint JNICALL
0N/AJava_java_util_zip_CRC32_updateBytes(JNIEnv *env, jclass cls, jint crc,
0N/A jarray b, jint off, jint len)
0N/A{
0N/A Bytef *buf = (*env)->GetPrimitiveArrayCritical(env, b, 0);
0N/A if (buf) {
0N/A crc = crc32(crc, buf + off, len);
0N/A (*env)->ReleasePrimitiveArrayCritical(env, b, buf, 0);
0N/A }
0N/A return crc;
0N/A}
0N/A
0N/AJNIEXPORT jint ZIP_CRC32(jint crc, const jbyte *buf, jint len)
0N/A{
0N/A return crc32(crc, (Bytef*)buf, len);
0N/A}