| /* |
| * Copyright (c) 1999, 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 <stdlib.h> |
| |
| #include "jni.h" |
| #include "jni_util.h" |
| |
| #include "java_lang_reflect_Proxy.h" |
| |
| /* defined in libverify.so/verify.dll (src file common/check_format.c) */ |
| extern jboolean VerifyFixClassname(char *utf_name); |
| |
| /* |
| * Class: java_lang_reflect_Proxy |
| * Method: defineClass0 |
| * Signature: (Ljava/lang/ClassLoader;Ljava/lang/String;[BII)Ljava/lang/Class; |
| * |
| * The implementation of this native static method is a copy of that of |
| * the native instance method Java_java_lang_ClassLoader_defineClass0() |
| * with the implicit "this" parameter becoming the "loader" parameter. |
| */ |
| JNIEXPORT jclass JNICALL |
| Java_java_lang_reflect_Proxy_defineClass0(JNIEnv *env, |
| jclass ignore, |
| jobject loader, |
| jstring name, |
| jbyteArray data, |
| jint offset, |
| jint length) |
| { |
| jbyte *body; |
| char *utfName; |
| jclass result = 0; |
| char buf[128]; |
| |
| if (data == NULL) { |
| JNU_ThrowNullPointerException(env, 0); |
| return 0; |
| } |
| |
| /* Work around 4153825. malloc crashes on Solaris when passed a |
| * negative size. |
| */ |
| if (length < 0) { |
| JNU_ThrowArrayIndexOutOfBoundsException(env, 0); |
| return 0; |
| } |
| |
| body = (jbyte *)malloc(length); |
| |
| if (body == 0) { |
| JNU_ThrowOutOfMemoryError(env, 0); |
| return 0; |
| } |
| |
| (*env)->GetByteArrayRegion(env, data, offset, length, body); |
| |
| if ((*env)->ExceptionOccurred(env)) |
| goto free_body; |
| |
| if (name != NULL) { |
| int len = (*env)->GetStringUTFLength(env, name); |
| int unicode_len = (*env)->GetStringLength(env, name); |
| if (len >= sizeof(buf)) { |
| utfName = malloc(len + 1); |
| if (utfName == NULL) { |
| JNU_ThrowOutOfMemoryError(env, NULL); |
| goto free_body; |
| } |
| } else { |
| utfName = buf; |
| } |
| (*env)->GetStringUTFRegion(env, name, 0, unicode_len, utfName); |
| VerifyFixClassname(utfName); |
| } else { |
| utfName = NULL; |
| } |
| |
| result = (*env)->DefineClass(env, utfName, loader, body, length); |
| |
| if (utfName && utfName != buf) |
| free(utfName); |
| |
| free_body: |
| free(body); |
| return result; |
| } |