--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/jdk.pack/share/native/libunpack/jni.cpp Wed Dec 14 10:51:13 2016 -0800
@@ -0,0 +1,351 @@
+/*
+ * Copyright (c) 2003, 2015, 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.
+ */
+#include <sys/types.h>
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdarg.h>
+
+
+#include <limits.h>
+
+#include <com_sun_java_util_jar_pack_NativeUnpack.h>
+
+#include "jni_util.h"
+
+#include "defines.h"
+#include "bytes.h"
+#include "utils.h"
+#include "coding.h"
+#include "bands.h"
+#include "constants.h"
+#include "zip.h"
+#include "unpack.h"
+
+
+static jfieldID unpackerPtrFID;
+static jmethodID currentInstMID;
+static jmethodID readInputMID;
+static jclass NIclazz;
+static jmethodID getUnpackerPtrMID;
+
+static char* dbg = null;
+
+#define THROW_IOE(x) JNU_ThrowIOException(env,x)
+
+#define CHECK_EXCEPTION_RETURN_VOID_THROW_IOE(CERVTI_exception, CERVTI_message) \
+ do { \
+ if ((env)->ExceptionOccurred()) { \
+ THROW_IOE(CERVTI_message); \
+ return; \
+ } \
+ if ((CERVTI_exception) == NULL) { \
+ THROW_IOE(CERVTI_message); \
+ return; \
+ } \
+ } while (JNI_FALSE)
+
+
+#define CHECK_EXCEPTION_RETURN_VALUE(CERL_exception, CERL_return_value) \
+ do { \
+ if ((env)->ExceptionOccurred()) { \
+ return CERL_return_value; \
+ } \
+ if ((CERL_exception) == NULL) { \
+ return CERL_return_value; \
+ } \
+ } while (JNI_FALSE)
+
+
+// If these useful macros aren't defined in jni_util.h then define them here
+#ifndef CHECK_NULL_RETURN
+#define CHECK_NULL_RETURN(x, y) \
+ do { \
+ if ((x) == NULL) return (y); \
+ } while (JNI_FALSE)
+#endif
+
+#ifndef CHECK_EXCEPTION_RETURN
+#define CHECK_EXCEPTION_RETURN(env, y) \
+ do { \
+ if ((*env)->ExceptionCheck(env)) return (y); \
+ } while (JNI_FALSE)
+#endif
+
+/*
+ * Declare library specific JNI_Onload entry if static build
+ */
+DEF_STATIC_JNI_OnLoad
+
+static jlong read_input_via_jni(unpacker* self,
+ void* buf, jlong minlen, jlong maxlen);
+
+static unpacker* get_unpacker(JNIEnv *env, jobject pObj, bool noCreate=false) {
+ unpacker* uPtr;
+ jlong p = env->CallLongMethod(pObj, getUnpackerPtrMID);
+ uPtr = (unpacker*)jlong2ptr(p);
+ if (uPtr == null) {
+ if (noCreate) return null;
+ uPtr = new unpacker();
+ if (uPtr == null) {
+ THROW_IOE(ERROR_ENOMEM);
+ return null;
+ }
+ //fprintf(stderr, "get_unpacker(%p) uPtr=%p initializing\n", pObj, uPtr);
+ uPtr->init(read_input_via_jni);
+ uPtr->jniobj = (void*) env->NewGlobalRef(pObj);
+ env->SetLongField(pObj, unpackerPtrFID, ptr2jlong(uPtr));
+ }
+ uPtr->jnienv = env; // keep refreshing this in case of MT access
+ return uPtr;
+}
+
+// This is the harder trick: Pull the current state out of mid-air.
+static unpacker* get_unpacker() {
+ //fprintf(stderr, "get_unpacker()\n");
+ JavaVM* vm = null;
+ jsize nVM = 0;
+ jint retval = JNI_GetCreatedJavaVMs(&vm, 1, &nVM);
+ // other VM implements may differ, thus for correctness, we need these checks
+ if (retval != JNI_OK || nVM != 1)
+ return null;
+ void* envRaw = null;
+ vm->GetEnv(&envRaw, JNI_VERSION_1_1);
+ JNIEnv* env = (JNIEnv*) envRaw;
+ //fprintf(stderr, "get_unpacker() env=%p\n", env);
+ CHECK_NULL_RETURN(env, NULL);
+ jobject pObj = env->CallStaticObjectMethod(NIclazz, currentInstMID);
+ // We should check upon the known non-null variable because here we want to check
+ // only for pending exceptions. If pObj is null we'll deal with it later.
+ CHECK_EXCEPTION_RETURN_VALUE(env, NULL);
+ //fprintf(stderr, "get_unpacker0() pObj=%p\n", pObj);
+ if (pObj != null) {
+ // Got pObj and env; now do it the easy way.
+ return get_unpacker(env, pObj);
+ }
+ // this should really not happen, if it does something is seriously
+ // wrong throw an exception
+ THROW_IOE(ERROR_INTERNAL);
+ return null;
+}
+
+static void free_unpacker(JNIEnv *env, jobject pObj, unpacker* uPtr) {
+ if (uPtr != null) {
+ //fprintf(stderr, "free_unpacker(%p) uPtr=%p\n", pObj, uPtr);
+ env->DeleteGlobalRef((jobject) uPtr->jniobj);
+ uPtr->jniobj = null;
+ uPtr->free();
+ delete uPtr;
+ env->SetLongField(pObj, unpackerPtrFID, (jlong)null);
+ }
+}
+
+unpacker* unpacker::current() {
+ return get_unpacker();
+}
+
+// Callback for fetching data, Java style. Calls NativeUnpack.readInputFn().
+static jlong read_input_via_jni(unpacker* self,
+ void* buf, jlong minlen, jlong maxlen) {
+ JNIEnv* env = (JNIEnv*) self->jnienv;
+ jobject pbuf = env->NewDirectByteBuffer(buf, maxlen);
+ return env->CallLongMethod((jobject) self->jniobj, readInputMID,
+ pbuf, minlen);
+}
+
+JNIEXPORT void JNICALL
+Java_com_sun_java_util_jar_pack_NativeUnpack_initIDs(JNIEnv *env, jclass clazz) {
+#ifndef PRODUCT
+ dbg = getenv("DEBUG_ATTACH");
+ while( dbg != null) { sleep(10); }
+#endif
+ NIclazz = (jclass) env->NewGlobalRef(clazz);
+
+ unpackerPtrFID = env->GetFieldID(clazz, "unpackerPtr", "J");
+ CHECK_EXCEPTION_RETURN_VOID_THROW_IOE(unpackerPtrFID, ERROR_INIT);
+
+ currentInstMID = env->GetStaticMethodID(clazz, "currentInstance",
+ "()Ljava/lang/Object;");
+ CHECK_EXCEPTION_RETURN_VOID_THROW_IOE(currentInstMID, ERROR_INIT);
+
+ readInputMID = env->GetMethodID(clazz, "readInputFn",
+ "(Ljava/nio/ByteBuffer;J)J");
+ CHECK_EXCEPTION_RETURN_VOID_THROW_IOE(readInputMID, ERROR_INIT);
+
+ getUnpackerPtrMID = env->GetMethodID(clazz, "getUnpackerPtr", "()J");
+ CHECK_EXCEPTION_RETURN_VOID_THROW_IOE(getUnpackerPtrMID, ERROR_INIT);
+}
+
+JNIEXPORT jlong JNICALL
+Java_com_sun_java_util_jar_pack_NativeUnpack_start(JNIEnv *env, jobject pObj,
+ jobject pBuf, jlong offset) {
+ // try to get the unpacker pointer the hard way first, we do this to ensure
+ // valid object pointers and env is intact, if not now is good time to bail.
+ unpacker* uPtr = get_unpacker();
+ //fprintf(stderr, "start(%p) uPtr=%p initializing\n", pObj, uPtr);
+ CHECK_EXCEPTION_RETURN_VALUE(uPtr, -1);
+ // redirect our io to the default log file or whatever.
+ uPtr->redirect_stdio();
+
+ void* buf = null;
+ size_t buflen = 0;
+ if (pBuf != null) {
+ buf = env->GetDirectBufferAddress(pBuf);
+ buflen = (size_t)env->GetDirectBufferCapacity(pBuf);
+ if (buflen == 0) buf = null;
+ if (buf == null) { THROW_IOE(ERROR_INTERNAL); return 0; }
+ if ((size_t)offset >= buflen)
+ { buf = null; buflen = 0; }
+ else
+ { buf = (char*)buf + (size_t)offset; buflen -= (size_t)offset; }
+ }
+ // before we start off we make sure there is no other error by the time we
+ // get here
+ if (uPtr->aborting()) {
+ THROW_IOE(uPtr->get_abort_message());
+ return 0;
+ }
+ uPtr->start(buf, buflen);
+ if (uPtr->aborting()) {
+ THROW_IOE(uPtr->get_abort_message());
+ return 0;
+ }
+
+ return ((jlong)
+ uPtr->get_segments_remaining() << 32)
+ + uPtr->get_files_remaining();
+}
+
+JNIEXPORT jboolean JNICALL
+Java_com_sun_java_util_jar_pack_NativeUnpack_getNextFile(JNIEnv *env, jobject pObj,
+ jobjectArray pParts) {
+
+ unpacker* uPtr = get_unpacker(env, pObj);
+ CHECK_EXCEPTION_RETURN_VALUE(uPtr, false);
+ unpacker::file* filep = uPtr->get_next_file();
+
+ if (uPtr->aborting()) {
+ THROW_IOE(uPtr->get_abort_message());
+ return false;
+ }
+
+ CHECK_NULL_RETURN(filep, false);
+ assert(filep == &uPtr->cur_file);
+
+ int pidx = 0, iidx = 0;
+ jintArray pIntParts = (jintArray) env->GetObjectArrayElement(pParts, pidx++);
+ CHECK_EXCEPTION_RETURN_VALUE(pIntParts, false);
+ jint* intParts = env->GetIntArrayElements(pIntParts, null);
+ intParts[iidx++] = (jint)( (julong)filep->size >> 32 );
+ intParts[iidx++] = (jint)( (julong)filep->size >> 0 );
+ intParts[iidx++] = filep->modtime;
+ intParts[iidx++] = filep->deflate_hint() ? 1 : 0;
+ env->ReleaseIntArrayElements(pIntParts, intParts, JNI_COMMIT);
+ jstring filename = env->NewStringUTF(filep->name);
+ CHECK_EXCEPTION_RETURN_VALUE(filename, false);
+ env->SetObjectArrayElement(pParts, pidx++, filename);
+ CHECK_EXCEPTION_RETURN_VALUE(uPtr, false);
+ jobject pDataBuf = null;
+ if (filep->data[0].len > 0) {
+ pDataBuf = env->NewDirectByteBuffer(filep->data[0].ptr,
+ filep->data[0].len);
+ CHECK_EXCEPTION_RETURN_VALUE(pDataBuf, false);
+ }
+ env->SetObjectArrayElement(pParts, pidx++, pDataBuf);
+ CHECK_EXCEPTION_RETURN_VALUE(uPtr, false);
+ pDataBuf = null;
+ if (filep->data[1].len > 0) {
+ pDataBuf = env->NewDirectByteBuffer(filep->data[1].ptr,
+ filep->data[1].len);
+ CHECK_EXCEPTION_RETURN_VALUE(pDataBuf, false);
+ }
+ env->SetObjectArrayElement(pParts, pidx++, pDataBuf);
+ CHECK_EXCEPTION_RETURN_VALUE(uPtr, false);
+
+ return true;
+}
+
+
+JNIEXPORT jobject JNICALL
+Java_com_sun_java_util_jar_pack_NativeUnpack_getUnusedInput(JNIEnv *env, jobject pObj) {
+ unpacker* uPtr = get_unpacker(env, pObj);
+ CHECK_EXCEPTION_RETURN_VALUE(uPtr, NULL);
+ unpacker::file* filep = &uPtr->cur_file;
+
+ if (uPtr->aborting()) {
+ THROW_IOE(uPtr->get_abort_message());
+ return null;
+ }
+
+ // We have fetched all the files.
+ // Now swallow up any remaining input.
+ if (uPtr->input_remaining() == 0) {
+ return null;
+ } else {
+ bytes remaining_bytes;
+ remaining_bytes.malloc(uPtr->input_remaining());
+ remaining_bytes.copyFrom(uPtr->input_scan(), uPtr->input_remaining());
+ return env->NewDirectByteBuffer(remaining_bytes.ptr, remaining_bytes.len);
+ }
+}
+
+JNIEXPORT jlong JNICALL
+Java_com_sun_java_util_jar_pack_NativeUnpack_finish(JNIEnv *env, jobject pObj) {
+ unpacker* uPtr = get_unpacker(env, pObj, false);
+ CHECK_EXCEPTION_RETURN_VALUE(uPtr, 0);
+ size_t consumed = uPtr->input_consumed();
+ free_unpacker(env, pObj, uPtr);
+ return consumed;
+}
+
+JNIEXPORT jboolean JNICALL
+Java_com_sun_java_util_jar_pack_NativeUnpack_setOption(JNIEnv *env, jobject pObj,
+ jstring pProp, jstring pValue) {
+ unpacker* uPtr = get_unpacker(env, pObj);
+ CHECK_EXCEPTION_RETURN_VALUE(uPtr, false);
+ const char* prop = env->GetStringUTFChars(pProp, JNI_FALSE);
+ CHECK_EXCEPTION_RETURN_VALUE(prop, false);
+ const char* value = env->GetStringUTFChars(pValue, JNI_FALSE);
+ CHECK_EXCEPTION_RETURN_VALUE(value, false);
+ jboolean retval = uPtr->set_option(prop, value);
+ env->ReleaseStringUTFChars(pProp, prop);
+ env->ReleaseStringUTFChars(pValue, value);
+ return retval;
+}
+
+JNIEXPORT jstring JNICALL
+Java_com_sun_java_util_jar_pack_NativeUnpack_getOption(JNIEnv *env, jobject pObj,
+ jstring pProp) {
+
+ unpacker* uPtr = get_unpacker(env, pObj);
+ CHECK_EXCEPTION_RETURN_VALUE(uPtr, NULL);
+ const char* prop = env->GetStringUTFChars(pProp, JNI_FALSE);
+ CHECK_EXCEPTION_RETURN_VALUE(prop, NULL);
+ const char* value = uPtr->get_option(prop);
+ CHECK_EXCEPTION_RETURN_VALUE(value, NULL);
+ env->ReleaseStringUTFChars(pProp, prop);
+ return env->NewStringUTF(value);
+}