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/*
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* Copyright 1997 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Sun designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Sun in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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/*
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* Native method support for java.util.zip.Adler32
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*/
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#include "jni.h"
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#include "jni_util.h"
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#include "zlib.h"
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#include "java_util_zip_Adler32.h"
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JNIEXPORT jint JNICALL
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Java_java_util_zip_Adler32_update(JNIEnv *env, jclass cls, jint adler, jint b)
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{
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Bytef buf[1];
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buf[0] = (Bytef)b;
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return adler32(adler, buf, 1);
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}
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JNIEXPORT jint JNICALL
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Java_java_util_zip_Adler32_updateBytes(JNIEnv *env, jclass cls, jint adler,
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jarray b, jint off, jint len)
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{
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Bytef *buf = (*env)->GetPrimitiveArrayCritical(env, b, 0);
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if (buf) {
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adler = adler32(adler, buf + off, len);
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(*env)->ReleasePrimitiveArrayCritical(env, b, buf, 0);
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}
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return adler;
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}
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