--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.base/share/native/libzip/Deflater.c Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,247 @@
+/*
+ * Copyright (c) 1997, 2014, 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.
+ */
+
+/*
+ * Native method support for java.util.zip.Deflater
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "jlong.h"
+#include "jni.h"
+#include "jni_util.h"
+#include <zlib.h>
+
+#include "java_util_zip_Deflater.h"
+
+#define DEF_MEM_LEVEL 8
+
+static jfieldID levelID;
+static jfieldID strategyID;
+static jfieldID setParamsID;
+static jfieldID finishID;
+static jfieldID finishedID;
+static jfieldID bufID, offID, lenID;
+
+JNIEXPORT void JNICALL
+Java_java_util_zip_Deflater_initIDs(JNIEnv *env, jclass cls)
+{
+ levelID = (*env)->GetFieldID(env, cls, "level", "I");
+ CHECK_NULL(levelID);
+ strategyID = (*env)->GetFieldID(env, cls, "strategy", "I");
+ CHECK_NULL(strategyID);
+ setParamsID = (*env)->GetFieldID(env, cls, "setParams", "Z");
+ CHECK_NULL(setParamsID);
+ finishID = (*env)->GetFieldID(env, cls, "finish", "Z");
+ CHECK_NULL(finishID);
+ finishedID = (*env)->GetFieldID(env, cls, "finished", "Z");
+ CHECK_NULL(finishedID);
+ bufID = (*env)->GetFieldID(env, cls, "buf", "[B");
+ CHECK_NULL(bufID);
+ offID = (*env)->GetFieldID(env, cls, "off", "I");
+ CHECK_NULL(offID);
+ lenID = (*env)->GetFieldID(env, cls, "len", "I");
+ CHECK_NULL(lenID);
+}
+
+JNIEXPORT jlong JNICALL
+Java_java_util_zip_Deflater_init(JNIEnv *env, jclass cls, jint level,
+ jint strategy, jboolean nowrap)
+{
+ z_stream *strm = calloc(1, sizeof(z_stream));
+
+ if (strm == 0) {
+ JNU_ThrowOutOfMemoryError(env, 0);
+ return jlong_zero;
+ } else {
+ const char *msg;
+ int ret = deflateInit2(strm, level, Z_DEFLATED,
+ nowrap ? -MAX_WBITS : MAX_WBITS,
+ DEF_MEM_LEVEL, strategy);
+ switch (ret) {
+ case Z_OK:
+ return ptr_to_jlong(strm);
+ case Z_MEM_ERROR:
+ free(strm);
+ JNU_ThrowOutOfMemoryError(env, 0);
+ return jlong_zero;
+ case Z_STREAM_ERROR:
+ free(strm);
+ JNU_ThrowIllegalArgumentException(env, 0);
+ return jlong_zero;
+ default:
+ msg = ((strm->msg != NULL) ? strm->msg :
+ (ret == Z_VERSION_ERROR) ?
+ "zlib returned Z_VERSION_ERROR: "
+ "compile time and runtime zlib implementations differ" :
+ "unknown error initializing zlib library");
+ free(strm);
+ JNU_ThrowInternalError(env, msg);
+ return jlong_zero;
+ }
+ }
+}
+
+JNIEXPORT void JNICALL
+Java_java_util_zip_Deflater_setDictionary(JNIEnv *env, jclass cls, jlong addr,
+ jarray b, jint off, jint len)
+{
+ Bytef *buf = (*env)->GetPrimitiveArrayCritical(env, b, 0);
+ int res;
+ if (buf == 0) {/* out of memory */
+ return;
+ }
+ res = deflateSetDictionary((z_stream *)jlong_to_ptr(addr), buf + off, len);
+ (*env)->ReleasePrimitiveArrayCritical(env, b, buf, 0);
+ switch (res) {
+ case Z_OK:
+ break;
+ case Z_STREAM_ERROR:
+ JNU_ThrowIllegalArgumentException(env, 0);
+ break;
+ default:
+ JNU_ThrowInternalError(env, ((z_stream *)jlong_to_ptr(addr))->msg);
+ break;
+ }
+}
+
+JNIEXPORT jint JNICALL
+Java_java_util_zip_Deflater_deflateBytes(JNIEnv *env, jobject this, jlong addr,
+ jarray b, jint off, jint len, jint flush)
+{
+ z_stream *strm = jlong_to_ptr(addr);
+
+ jarray this_buf = (*env)->GetObjectField(env, this, bufID);
+ jint this_off = (*env)->GetIntField(env, this, offID);
+ jint this_len = (*env)->GetIntField(env, this, lenID);
+ jbyte *in_buf;
+ jbyte *out_buf;
+ int res;
+ if ((*env)->GetBooleanField(env, this, setParamsID)) {
+ int level = (*env)->GetIntField(env, this, levelID);
+ int strategy = (*env)->GetIntField(env, this, strategyID);
+ in_buf = (*env)->GetPrimitiveArrayCritical(env, this_buf, 0);
+ if (in_buf == NULL) {
+ // Throw OOME only when length is not zero
+ if (this_len != 0 && (*env)->ExceptionOccurred(env) == NULL)
+ JNU_ThrowOutOfMemoryError(env, 0);
+ return 0;
+ }
+ out_buf = (*env)->GetPrimitiveArrayCritical(env, b, 0);
+ if (out_buf == NULL) {
+ (*env)->ReleasePrimitiveArrayCritical(env, this_buf, in_buf, 0);
+ if (len != 0 && (*env)->ExceptionOccurred(env) == NULL)
+ JNU_ThrowOutOfMemoryError(env, 0);
+ return 0;
+ }
+
+ strm->next_in = (Bytef *) (in_buf + this_off);
+ strm->next_out = (Bytef *) (out_buf + off);
+ strm->avail_in = this_len;
+ strm->avail_out = len;
+ res = deflateParams(strm, level, strategy);
+ (*env)->ReleasePrimitiveArrayCritical(env, b, out_buf, 0);
+ (*env)->ReleasePrimitiveArrayCritical(env, this_buf, in_buf, 0);
+
+ switch (res) {
+ case Z_OK:
+ (*env)->SetBooleanField(env, this, setParamsID, JNI_FALSE);
+ this_off += this_len - strm->avail_in;
+ (*env)->SetIntField(env, this, offID, this_off);
+ (*env)->SetIntField(env, this, lenID, strm->avail_in);
+ return (jint) (len - strm->avail_out);
+ case Z_BUF_ERROR:
+ (*env)->SetBooleanField(env, this, setParamsID, JNI_FALSE);
+ return 0;
+ default:
+ JNU_ThrowInternalError(env, strm->msg);
+ return 0;
+ }
+ } else {
+ jboolean finish = (*env)->GetBooleanField(env, this, finishID);
+ in_buf = (*env)->GetPrimitiveArrayCritical(env, this_buf, 0);
+ if (in_buf == NULL) {
+ if (this_len != 0)
+ JNU_ThrowOutOfMemoryError(env, 0);
+ return 0;
+ }
+ out_buf = (*env)->GetPrimitiveArrayCritical(env, b, 0);
+ if (out_buf == NULL) {
+ (*env)->ReleasePrimitiveArrayCritical(env, this_buf, in_buf, 0);
+ if (len != 0)
+ JNU_ThrowOutOfMemoryError(env, 0);
+
+ return 0;
+ }
+
+ strm->next_in = (Bytef *) (in_buf + this_off);
+ strm->next_out = (Bytef *) (out_buf + off);
+ strm->avail_in = this_len;
+ strm->avail_out = len;
+ res = deflate(strm, finish ? Z_FINISH : flush);
+ (*env)->ReleasePrimitiveArrayCritical(env, b, out_buf, 0);
+ (*env)->ReleasePrimitiveArrayCritical(env, this_buf, in_buf, 0);
+
+ switch (res) {
+ case Z_STREAM_END:
+ (*env)->SetBooleanField(env, this, finishedID, JNI_TRUE);
+ /* fall through */
+ case Z_OK:
+ this_off += this_len - strm->avail_in;
+ (*env)->SetIntField(env, this, offID, this_off);
+ (*env)->SetIntField(env, this, lenID, strm->avail_in);
+ return len - strm->avail_out;
+ case Z_BUF_ERROR:
+ return 0;
+ default:
+ JNU_ThrowInternalError(env, strm->msg);
+ return 0;
+ }
+ }
+}
+
+JNIEXPORT jint JNICALL
+Java_java_util_zip_Deflater_getAdler(JNIEnv *env, jclass cls, jlong addr)
+{
+ return ((z_stream *)jlong_to_ptr(addr))->adler;
+}
+
+JNIEXPORT void JNICALL
+Java_java_util_zip_Deflater_reset(JNIEnv *env, jclass cls, jlong addr)
+{
+ if (deflateReset((z_stream *)jlong_to_ptr(addr)) != Z_OK) {
+ JNU_ThrowInternalError(env, 0);
+ }
+}
+
+JNIEXPORT void JNICALL
+Java_java_util_zip_Deflater_end(JNIEnv *env, jclass cls, jlong addr)
+{
+ if (deflateEnd((z_stream *)jlong_to_ptr(addr)) == Z_STREAM_ERROR) {
+ JNU_ThrowInternalError(env, 0);
+ } else {
+ free((z_stream *)jlong_to_ptr(addr));
+ }
+}