| /* |
| * Copyright (c) 2003, 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. |
| */ |
| #include <stdlib.h> |
| |
| #include "jni.h" |
| #include "jni_util.h" |
| #include <windows.h> |
| |
| static jstring |
| environmentBlock9x(JNIEnv *env) |
| { |
| int i; |
| jmethodID String_init_ID; |
| jbyteArray bytes; |
| jbyte *blockA; |
| jclass string_class; |
| |
| string_class= JNU_ClassString(env); |
| CHECK_NULL_RETURN(string_class, NULL); |
| String_init_ID = |
| (*env)->GetMethodID(env, string_class, "<init>", "([B)V"); |
| CHECK_NULL_RETURN(String_init_ID, NULL); |
| blockA = (jbyte *) GetEnvironmentStringsA(); |
| if (blockA == NULL) { |
| /* Both GetEnvironmentStringsW and GetEnvironmentStringsA |
| * failed. Out of memory is our best guess. */ |
| JNU_ThrowOutOfMemoryError(env, "GetEnvironmentStrings failed"); |
| return NULL; |
| } |
| |
| /* Don't search for "\0\0", since an empty environment block may |
| legitimately consist of a single "\0". */ |
| for (i = 0; blockA[i];) |
| while (blockA[i++]) |
| ; |
| |
| if ((bytes = (*env)->NewByteArray(env, i)) == NULL) { |
| FreeEnvironmentStringsA(blockA); |
| return NULL; |
| } |
| (*env)->SetByteArrayRegion(env, bytes, 0, i, blockA); |
| FreeEnvironmentStringsA(blockA); |
| return (*env)->NewObject(env, string_class, |
| String_init_ID, bytes); |
| } |
| |
| /* Returns a Windows style environment block, discarding final trailing NUL */ |
| JNIEXPORT jstring JNICALL |
| Java_java_lang_ProcessEnvironment_environmentBlock(JNIEnv *env, jclass klass) |
| { |
| int i; |
| jstring envblock; |
| jchar *blockW = (jchar *) GetEnvironmentStringsW(); |
| if (blockW == NULL) |
| return environmentBlock9x(env); |
| |
| /* Don't search for "\u0000\u0000", since an empty environment |
| block may legitimately consist of a single "\u0000". */ |
| for (i = 0; blockW[i];) |
| while (blockW[i++]) |
| ; |
| |
| envblock = (*env)->NewString(env, blockW, i); |
| FreeEnvironmentStringsW(blockW); |
| return envblock; |
| } |