| /* |
| * Copyright (c) 2015, 2017, 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 <string.h> |
| |
| #include "jni.h" |
| #include "jni_util.h" |
| #include "jvm.h" |
| |
| #include "java_lang_Module.h" |
| |
| /* |
| * Gets the UTF-8 chars for the string and translates '.' to '/'. Does no |
| * further validation, assumption being that both calling code in |
| * java.lang.Module and VM will do deeper validation. |
| */ |
| static char* |
| GetInternalPackageName(JNIEnv *env, jstring pkg, char* buf, jsize buf_size) |
| { |
| jsize len; |
| jsize unicode_len; |
| char* p; |
| char* utf_str; |
| |
| len = (*env)->GetStringUTFLength(env, pkg); |
| unicode_len = (*env)->GetStringLength(env, pkg); |
| if (len >= buf_size) { |
| utf_str = malloc(len + 1); |
| if (utf_str == NULL) { |
| JNU_ThrowOutOfMemoryError(env, NULL); |
| return NULL; |
| } |
| } else { |
| utf_str = buf; |
| } |
| (*env)->GetStringUTFRegion(env, pkg, 0, unicode_len, utf_str); |
| |
| p = utf_str; |
| while (*p != '\0') { |
| if (*p == '.') { |
| *p = '/'; |
| } |
| p++; |
| } |
| return utf_str; |
| } |
| |
| JNIEXPORT void JNICALL |
| Java_java_lang_Module_defineModule0(JNIEnv *env, jclass cls, jobject module, |
| jboolean is_open, jstring version, |
| jstring location, jobjectArray packages) |
| { |
| char** pkgs = NULL; |
| jsize num_packages = (*env)->GetArrayLength(env, packages); |
| |
| if (num_packages != 0 && (pkgs = calloc(num_packages, sizeof(char*))) == NULL) { |
| JNU_ThrowOutOfMemoryError(env, NULL); |
| return; |
| } else if ((*env)->EnsureLocalCapacity(env, (jint)num_packages) == 0) { |
| jboolean failed = JNI_FALSE; |
| int idx; |
| for (idx = 0; idx < num_packages; idx++) { |
| jstring pkg = (*env)->GetObjectArrayElement(env, packages, idx); |
| char* name = GetInternalPackageName(env, pkg, NULL, 0); |
| if (name != NULL) { |
| pkgs[idx] = name; |
| } else { |
| failed = JNI_TRUE; |
| break; |
| } |
| } |
| if (!failed) { |
| JVM_DefineModule(env, module, is_open, version, location, |
| (const char* const*)pkgs, num_packages); |
| } |
| } |
| |
| if (num_packages > 0) { |
| int idx; |
| for (idx = 0; idx < num_packages; idx++) { |
| if (pkgs[idx] != NULL) { |
| free(pkgs[idx]); |
| } |
| } |
| free(pkgs); |
| } |
| } |
| |
| JNIEXPORT void JNICALL |
| Java_java_lang_Module_addReads0(JNIEnv *env, jclass cls, jobject from, jobject to) |
| { |
| JVM_AddReadsModule(env, from, to); |
| } |
| |
| JNIEXPORT void JNICALL |
| Java_java_lang_Module_addExports0(JNIEnv *env, jclass cls, jobject from, |
| jstring pkg, jobject to) |
| { |
| char buf[128]; |
| char* pkg_name; |
| |
| if (pkg == NULL) { |
| JNU_ThrowNullPointerException(env, "package is null"); |
| return; |
| } |
| |
| pkg_name = GetInternalPackageName(env, pkg, buf, (jsize)sizeof(buf)); |
| if (pkg_name != NULL) { |
| JVM_AddModuleExports(env, from, pkg_name, to); |
| if (pkg_name != buf) { |
| free(pkg_name); |
| } |
| } |
| } |
| |
| JNIEXPORT void JNICALL |
| Java_java_lang_Module_addExportsToAll0(JNIEnv *env, jclass cls, jobject from, |
| jstring pkg) |
| { |
| char buf[128]; |
| char* pkg_name; |
| |
| if (pkg == NULL) { |
| JNU_ThrowNullPointerException(env, "package is null"); |
| return; |
| } |
| |
| pkg_name = GetInternalPackageName(env, pkg, buf, (jsize)sizeof(buf)); |
| if (pkg_name != NULL) { |
| JVM_AddModuleExportsToAll(env, from, pkg_name); |
| if (pkg_name != buf) { |
| free(pkg_name); |
| } |
| } |
| } |
| |
| JNIEXPORT void JNICALL |
| Java_java_lang_Module_addExportsToAllUnnamed0(JNIEnv *env, jclass cls, |
| jobject from, jstring pkg) |
| { |
| char buf[128]; |
| char* pkg_name; |
| |
| if (pkg == NULL) { |
| JNU_ThrowNullPointerException(env, "package is null"); |
| return; |
| } |
| |
| pkg_name = GetInternalPackageName(env, pkg, buf, (jsize)sizeof(buf)); |
| if (pkg_name != NULL) { |
| JVM_AddModuleExportsToAllUnnamed(env, from, pkg_name); |
| if (pkg_name != buf) { |
| free(pkg_name); |
| } |
| } |
| } |