0N/A/*
3261N/A * Copyright (c) 1998, 2010, 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.ZipFile
0N/A */
0N/A
0N/A#include <stdio.h>
0N/A#include <stdlib.h>
0N/A#include <string.h>
0N/A#include <errno.h>
0N/A#include <ctype.h>
0N/A#include <assert.h>
0N/A#include "jlong.h"
0N/A#include "jvm.h"
0N/A#include "jni.h"
0N/A#include "jni_util.h"
0N/A#include "zip_util.h"
0N/A#ifdef WIN32
0N/A#include "io_util_md.h"
1332N/A#else
1332N/A#include "io_util.h"
0N/A#endif
0N/A
0N/A#include "java_util_zip_ZipFile.h"
0N/A#include "java_util_jar_JarFile.h"
0N/A
0N/A#define DEFLATED 8
0N/A#define STORED 0
0N/A
0N/Astatic jfieldID jzfileID;
0N/A
0N/Astatic int OPEN_READ = java_util_zip_ZipFile_OPEN_READ;
0N/Astatic int OPEN_DELETE = java_util_zip_ZipFile_OPEN_DELETE;
0N/A
0N/AJNIEXPORT void JNICALL
0N/AJava_java_util_zip_ZipFile_initIDs(JNIEnv *env, jclass cls)
0N/A{
0N/A jzfileID = (*env)->GetFieldID(env, cls, "jzfile", "J");
0N/A assert(jzfileID != 0);
0N/A}
0N/A
0N/Astatic void
0N/AThrowZipException(JNIEnv *env, const char *msg)
0N/A{
0N/A jstring s = NULL;
0N/A jobject x;
0N/A
0N/A if (msg != NULL) {
0N/A s = JNU_NewStringPlatform(env, msg);
0N/A }
0N/A x = JNU_NewObjectByName(env,
0N/A "java/util/zip/ZipException",
0N/A "(Ljava/lang/String;)V", s);
0N/A if (x != NULL) {
0N/A (*env)->Throw(env, x);
0N/A }
0N/A}
0N/A
0N/AJNIEXPORT jlong JNICALL
0N/AJava_java_util_zip_ZipFile_open(JNIEnv *env, jclass cls, jstring name,
2227N/A jint mode, jlong lastModified,
2227N/A jboolean usemmap)
0N/A{
0N/A const char *path = JNU_GetStringPlatformChars(env, name, 0);
0N/A char *msg = 0;
0N/A jlong result = 0;
0N/A int flag = 0;
0N/A jzfile *zip = 0;
0N/A
0N/A if (mode & OPEN_READ) flag |= O_RDONLY;
0N/A if (mode & OPEN_DELETE) flag |= JVM_O_DELETE;
0N/A
0N/A if (path != 0) {
0N/A zip = ZIP_Get_From_Cache(path, &msg, lastModified);
0N/A if (zip == 0 && msg == 0) {
0N/A ZFILE zfd = 0;
0N/A#ifdef WIN32
0N/A zfd = winFileHandleOpen(env, name, flag);
0N/A if (zfd == -1) {
0N/A /* Exception already pending. */
0N/A goto finally;
0N/A }
0N/A#else
0N/A zfd = JVM_Open(path, flag, 0);
1332N/A if (zfd < 0) {
1332N/A throwFileNotFoundException(env, name);
1332N/A goto finally;
1332N/A }
0N/A#endif
2227N/A zip = ZIP_Put_In_Cache0(path, zfd, &msg, lastModified, usemmap);
0N/A }
0N/A
0N/A if (zip != 0) {
0N/A result = ptr_to_jlong(zip);
0N/A } else if (msg != 0) {
0N/A ThrowZipException(env, msg);
5345N/A free(msg);
0N/A } else if (errno == ENOMEM) {
0N/A JNU_ThrowOutOfMemoryError(env, 0);
0N/A } else {
0N/A ThrowZipException(env, "error in opening zip file");
0N/A }
0N/Afinally:
0N/A JNU_ReleaseStringPlatformChars(env, name, path);
0N/A }
0N/A return result;
0N/A}
0N/A
0N/AJNIEXPORT jint JNICALL
0N/AJava_java_util_zip_ZipFile_getTotal(JNIEnv *env, jclass cls, jlong zfile)
0N/A{
0N/A jzfile *zip = jlong_to_ptr(zfile);
0N/A
0N/A return zip->total;
0N/A}
0N/A
6329N/AJNIEXPORT jboolean JNICALL
6329N/AJava_java_util_zip_ZipFile_startsWithLOC(JNIEnv *env, jclass cls, jlong zfile)
6329N/A{
6329N/A jzfile *zip = jlong_to_ptr(zfile);
6329N/A
6329N/A return zip->locsig;
6329N/A}
6329N/A
0N/AJNIEXPORT void JNICALL
0N/AJava_java_util_zip_ZipFile_close(JNIEnv *env, jclass cls, jlong zfile)
0N/A{
0N/A ZIP_Close(jlong_to_ptr(zfile));
0N/A}
0N/A
0N/AJNIEXPORT jlong JNICALL
0N/AJava_java_util_zip_ZipFile_getEntry(JNIEnv *env, jclass cls, jlong zfile,
1107N/A jbyteArray name, jboolean addSlash)
0N/A{
0N/A#define MAXNAME 1024
0N/A jzfile *zip = jlong_to_ptr(zfile);
1107N/A jsize ulen = (*env)->GetArrayLength(env, name);
0N/A char buf[MAXNAME+2], *path;
0N/A jzentry *ze;
0N/A
0N/A if (ulen > MAXNAME) {
0N/A path = malloc(ulen + 2);
0N/A if (path == 0) {
0N/A JNU_ThrowOutOfMemoryError(env, 0);
0N/A return 0;
0N/A }
0N/A } else {
0N/A path = buf;
0N/A }
1107N/A (*env)->GetByteArrayRegion(env, name, 0, ulen, (jbyte *)path);
0N/A path[ulen] = '\0';
0N/A if (addSlash == JNI_FALSE) {
0N/A ze = ZIP_GetEntry(zip, path, 0);
0N/A } else {
0N/A ze = ZIP_GetEntry(zip, path, (jint)ulen);
0N/A }
0N/A if (path != buf) {
0N/A free(path);
0N/A }
0N/A return ptr_to_jlong(ze);
0N/A}
0N/A
0N/AJNIEXPORT void JNICALL
0N/AJava_java_util_zip_ZipFile_freeEntry(JNIEnv *env, jclass cls, jlong zfile,
0N/A jlong zentry)
0N/A{
0N/A jzfile *zip = jlong_to_ptr(zfile);
0N/A jzentry *ze = jlong_to_ptr(zentry);
0N/A ZIP_FreeEntry(zip, ze);
0N/A}
0N/A
0N/AJNIEXPORT jlong JNICALL
0N/AJava_java_util_zip_ZipFile_getNextEntry(JNIEnv *env, jclass cls, jlong zfile,
0N/A jint n)
0N/A{
0N/A jzentry *ze = ZIP_GetNextEntry(jlong_to_ptr(zfile), n);
0N/A return ptr_to_jlong(ze);
0N/A}
0N/A
0N/AJNIEXPORT jint JNICALL
1107N/AJava_java_util_zip_ZipFile_getEntryMethod(JNIEnv *env, jclass cls, jlong zentry)
0N/A{
0N/A jzentry *ze = jlong_to_ptr(zentry);
0N/A return ze->csize != 0 ? DEFLATED : STORED;
0N/A}
0N/A
1107N/AJNIEXPORT jint JNICALL
1107N/AJava_java_util_zip_ZipFile_getEntryFlag(JNIEnv *env, jclass cls, jlong zentry)
0N/A{
0N/A jzentry *ze = jlong_to_ptr(zentry);
1107N/A return ze->flag;
1107N/A}
0N/A
1107N/AJNIEXPORT jlong JNICALL
1107N/AJava_java_util_zip_ZipFile_getEntryCSize(JNIEnv *env, jclass cls, jlong zentry)
1107N/A{
1107N/A jzentry *ze = jlong_to_ptr(zentry);
0N/A return ze->csize != 0 ? ze->csize : ze->size;
0N/A}
0N/A
0N/AJNIEXPORT jlong JNICALL
1107N/AJava_java_util_zip_ZipFile_getEntrySize(JNIEnv *env, jclass cls, jlong zentry)
1107N/A{
1107N/A jzentry *ze = jlong_to_ptr(zentry);
1107N/A return ze->size;
1107N/A}
1107N/A
1107N/AJNIEXPORT jlong JNICALL
1107N/AJava_java_util_zip_ZipFile_getEntryTime(JNIEnv *env, jclass cls, jlong zentry)
1107N/A{
1107N/A jzentry *ze = jlong_to_ptr(zentry);
1107N/A return (jlong)ze->time & 0xffffffffUL;
1107N/A}
1107N/A
1107N/AJNIEXPORT jlong JNICALL
1107N/AJava_java_util_zip_ZipFile_getEntryCrc(JNIEnv *env, jclass cls, jlong zentry)
1107N/A{
1107N/A jzentry *ze = jlong_to_ptr(zentry);
1107N/A return (jlong)ze->crc & 0xffffffffUL;
1107N/A}
1107N/A
1107N/AJNIEXPORT jbyteArray JNICALL
1332N/AJava_java_util_zip_ZipFile_getCommentBytes(JNIEnv *env,
1332N/A jclass cls,
1332N/A jlong zfile)
1332N/A{
1332N/A jzfile *zip = jlong_to_ptr(zfile);
1332N/A jbyteArray jba = NULL;
1332N/A
1332N/A if (zip->comment != NULL) {
1332N/A if ((jba = (*env)->NewByteArray(env, zip->clen)) == NULL)
1332N/A return NULL;
1332N/A (*env)->SetByteArrayRegion(env, jba, 0, zip->clen, (jbyte*)zip->comment);
1332N/A }
1332N/A return jba;
1332N/A}
1332N/A
1332N/AJNIEXPORT jbyteArray JNICALL
1332N/AJava_java_util_zip_ZipFile_getEntryBytes(JNIEnv *env,
1332N/A jclass cls,
1332N/A jlong zentry, jint type)
0N/A{
0N/A jzentry *ze = jlong_to_ptr(zentry);
1107N/A int len = 0;
1107N/A jbyteArray jba = NULL;
1107N/A switch (type) {
1107N/A case java_util_zip_ZipFile_JZENTRY_NAME:
1107N/A if (ze->name != 0) {
1107N/A len = (int)strlen(ze->name);
1107N/A if (len == 0 || (jba = (*env)->NewByteArray(env, len)) == NULL)
1107N/A break;
1107N/A (*env)->SetByteArrayRegion(env, jba, 0, len, (jbyte *)ze->name);
1107N/A }
1107N/A break;
1107N/A case java_util_zip_ZipFile_JZENTRY_EXTRA:
1107N/A if (ze->extra != 0) {
1107N/A unsigned char *bp = (unsigned char *)&ze->extra[0];
1107N/A len = (bp[0] | (bp[1] << 8));
1107N/A if (len <= 0 || (jba = (*env)->NewByteArray(env, len)) == NULL)
1107N/A break;
1107N/A (*env)->SetByteArrayRegion(env, jba, 0, len, &ze->extra[2]);
1107N/A }
1107N/A break;
1107N/A case java_util_zip_ZipFile_JZENTRY_COMMENT:
1107N/A if (ze->comment != 0) {
1107N/A len = (int)strlen(ze->comment);
1107N/A if (len == 0 || (jba = (*env)->NewByteArray(env, len)) == NULL)
1107N/A break;
1107N/A (*env)->SetByteArrayRegion(env, jba, 0, len, (jbyte*)ze->comment);
1107N/A }
1107N/A break;
1107N/A }
1107N/A return jba;
0N/A}
0N/A
0N/AJNIEXPORT jint JNICALL
0N/AJava_java_util_zip_ZipFile_read(JNIEnv *env, jclass cls, jlong zfile,
0N/A jlong zentry, jlong pos, jbyteArray bytes,
0N/A jint off, jint len)
0N/A{
0N/A jzfile *zip = jlong_to_ptr(zfile);
0N/A char *msg;
0N/A
0N/A#define BUFSIZE 8192
0N/A /* copy via tmp stack buffer: */
0N/A jbyte buf[BUFSIZE];
0N/A
0N/A if (len > BUFSIZE) {
0N/A len = BUFSIZE;
0N/A }
0N/A
0N/A ZIP_Lock(zip);
0N/A len = ZIP_Read(zip, jlong_to_ptr(zentry), pos, buf, len);
0N/A msg = zip->msg;
0N/A ZIP_Unlock(zip);
0N/A if (len != -1) {
0N/A (*env)->SetByteArrayRegion(env, bytes, off, len, buf);
0N/A }
0N/A
0N/A if (len == -1) {
0N/A if (msg != 0) {
0N/A ThrowZipException(env, msg);
0N/A } else {
0N/A char errmsg[128];
0N/A sprintf(errmsg, "errno: %d, error: %s\n",
0N/A errno, "Error reading ZIP file");
0N/A JNU_ThrowIOExceptionWithLastError(env, errmsg);
0N/A }
0N/A }
0N/A
0N/A return len;
0N/A}
0N/A
0N/A/*
0N/A * Returns an array of strings representing the names of all entries
0N/A * that begin with "META-INF/" (case ignored). This native method is
0N/A * used in JarFile as an optimization when looking up manifest and
0N/A * signature file entries. Returns null if no entries were found.
0N/A */
0N/AJNIEXPORT jobjectArray JNICALL
0N/AJava_java_util_jar_JarFile_getMetaInfEntryNames(JNIEnv *env, jobject obj)
0N/A{
0N/A jlong zfile = (*env)->GetLongField(env, obj, jzfileID);
0N/A jzfile *zip;
0N/A int i, count;
0N/A jobjectArray result = 0;
0N/A
0N/A if (zfile == 0) {
0N/A JNU_ThrowByName(env,
0N/A "java/lang/IllegalStateException", "zip file closed");
0N/A return NULL;
0N/A }
0N/A zip = jlong_to_ptr(zfile);
0N/A
0N/A /* count the number of valid ZIP metanames */
0N/A count = 0;
0N/A if (zip->metanames != 0) {
0N/A for (i = 0; i < zip->metacount; i++) {
0N/A if (zip->metanames[i] != 0) {
0N/A count++;
0N/A }
0N/A }
0N/A }
0N/A
0N/A /* If some names were found then build array of java strings */
0N/A if (count > 0) {
0N/A jclass cls = (*env)->FindClass(env, "java/lang/String");
0N/A result = (*env)->NewObjectArray(env, count, cls, 0);
0N/A if (result != 0) {
0N/A for (i = 0; i < count; i++) {
0N/A jstring str = (*env)->NewStringUTF(env, zip->metanames[i]);
0N/A if (str == 0) {
0N/A break;
0N/A }
0N/A (*env)->SetObjectArrayElement(env, result, i, str);
0N/A (*env)->DeleteLocalRef(env, str);
0N/A }
0N/A }
0N/A }
0N/A return result;
0N/A}
0N/A
0N/AJNIEXPORT jstring JNICALL
0N/AJava_java_util_zip_ZipFile_getZipMessage(JNIEnv *env, jclass cls, jlong zfile)
0N/A{
0N/A jzfile *zip = jlong_to_ptr(zfile);
0N/A char *msg = zip->msg;
0N/A if (msg == NULL) {
0N/A return NULL;
0N/A }
0N/A return JNU_NewStringPlatform(env, msg);
0N/A}