1 /*
2 * Copyright (c) 2000, 2002, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 #include <stdlib.h>
27 #include <windows.h>
28 #include "jni.h"
29 #include "jni_util.h"
30 #include "jvm.h"
31 #ifdef __cplusplus
32 extern "C" {
33 #endif
34 JNIEXPORT jintArray JNICALL Java_java_util_prefs_WindowsPreferences_WindowsRegOpenKey
35 (JNIEnv* env, jclass this_class, jint hKey, jbyteArray lpSubKey, jint securityMask) {
36 HKEY handle;
37 char* str;
38 int tmp[2];
39 int errorCode=-1;
40 jintArray result;
41 str = (*env)->GetByteArrayElements(env, lpSubKey, NULL);
42 CHECK_NULL_RETURN(str, NULL);
43 errorCode = RegOpenKeyEx((HKEY)hKey, str, 0, securityMask, &handle);
44 (*env)->ReleaseByteArrayElements(env, lpSubKey, str, 0);
45 tmp[0]= (int) handle;
46 tmp[1]= errorCode;
47 result = (*env)->NewIntArray(env,2);
48 if (result != NULL) {
49 (*env)->SetIntArrayRegion(env, result, 0, 2, tmp);
50 }
51 return result;
52 }
53
54 JNIEXPORT jint JNICALL Java_java_util_prefs_WindowsPreferences_WindowsRegCloseKey
55 (JNIEnv* env, jclass this_class, jint hKey) {
56 return (jint) RegCloseKey((HKEY) hKey);
57 };
58
59 JNIEXPORT jintArray JNICALL Java_java_util_prefs_WindowsPreferences_WindowsRegCreateKeyEx
60 (JNIEnv* env, jclass this_class, jint hKey, jbyteArray lpSubKey) {
61 HKEY handle;
62 char* str;
63 int tmp[3];
64 DWORD lpdwDisposition;
65 int errorCode;
66 jintArray result = NULL;
67 str = (*env)->GetByteArrayElements(env, lpSubKey, NULL);
68 CHECK_NULL_RETURN(str, NULL);
69 errorCode = RegCreateKeyEx((HKEY)hKey, str, 0, NULL,
70 REG_OPTION_NON_VOLATILE, KEY_READ,
71 NULL, &handle, &lpdwDisposition);
72 (*env)->ReleaseByteArrayElements(env, lpSubKey, str, 0);
73 tmp[0]= (int) handle;
74 tmp[1]= errorCode;
75 tmp[2]= lpdwDisposition;
76 result = (*env)->NewIntArray(env,3);
77 if (result != NULL) {
78 (*env)->SetIntArrayRegion(env, result, 0, 3, tmp);
79 }
80 return result;
81 }
82
83 JNIEXPORT jint JNICALL Java_java_util_prefs_WindowsPreferences_WindowsRegDeleteKey
84 (JNIEnv* env, jclass this_class, jint hKey, jbyteArray lpSubKey) {
85 char* str;
86 int result;
87 str = (*env)->GetByteArrayElements(env, lpSubKey, NULL);
88 CHECK_NULL_RETURN(str, -1);
89 result = RegDeleteKey((HKEY)hKey, str);
90 (*env)->ReleaseByteArrayElements(env, lpSubKey, str, 0);
91 return result;
92
93 };
94
95 JNIEXPORT jint JNICALL Java_java_util_prefs_WindowsPreferences_WindowsRegFlushKey
96 (JNIEnv* env, jclass this_class, jint hKey) {
97 return RegFlushKey ((HKEY)hKey);
98 }
99
100 JNIEXPORT jbyteArray JNICALL Java_java_util_prefs_WindowsPreferences_WindowsRegQueryValueEx
101 (JNIEnv* env, jclass this_class, jint hKey, jbyteArray valueName) {
102 char* valueNameStr;
103 char* buffer;
104 jbyteArray result;
105 DWORD valueType;
106 DWORD valueSize;
107 valueNameStr = (*env)->GetByteArrayElements(env, valueName, NULL);
108 CHECK_NULL_RETURN(valueNameStr, NULL);
109 if (RegQueryValueEx((HKEY)hKey, valueNameStr, NULL, &valueType, NULL,
110 &valueSize) != ERROR_SUCCESS) {
111 (*env)->ReleaseByteArrayElements(env, valueName, valueNameStr, 0);
112 return NULL;
113 }
114
115 buffer = (char*)malloc(valueSize);
116 if (buffer != NULL) {
117 if (RegQueryValueEx((HKEY)hKey, valueNameStr, NULL, &valueType, buffer,
118 &valueSize) != ERROR_SUCCESS) {
119 free(buffer);
120 (*env)->ReleaseByteArrayElements(env, valueName, valueNameStr, 0);
121 return NULL;
122 }
123 } else {
124 JNU_ThrowOutOfMemoryError(env, "native memory allocation failed");
125 (*env)->ReleaseByteArrayElements(env, valueName, valueNameStr, 0);
126 return NULL;
127 }
128
129 if (valueType == REG_SZ) {
130 result = (*env)->NewByteArray(env, valueSize);
131 if (result != NULL) {
132 (*env)->SetByteArrayRegion(env, result, 0, valueSize, buffer);
133 }
134 } else {
135 result = NULL;
136 }
137 free(buffer);
138 (*env)->ReleaseByteArrayElements(env, valueName, valueNameStr, 0);
139 return result;
140 }
141
142
143
144
145 JNIEXPORT jint JNICALL Java_java_util_prefs_WindowsPreferences_WindowsRegSetValueEx
146 (JNIEnv* env, jclass this_class, jint hKey, jbyteArray valueName, jbyteArray data) {
147 char* valueNameStr;
148 char* dataStr;
149 int size = -1;
150 int nameSize = -1;
151 int error_code = -1;
152 if ((valueName == NULL)||(data == NULL)) {return -1;}
153 size = (*env)->GetArrayLength(env, data);
154 dataStr = (*env)->GetByteArrayElements(env, data, NULL);
155 CHECK_NULL_RETURN(dataStr, -1);
156 valueNameStr = (*env)->GetByteArrayElements(env, valueName, NULL);
157 if (valueNameStr != NULL) {
158 error_code = RegSetValueEx((HKEY)hKey, valueNameStr, 0,
159 REG_SZ, dataStr, size);
160 (*env)->ReleaseByteArrayElements(env, valueName, valueNameStr, 0);
161 }
162 (*env)->ReleaseByteArrayElements(env, data, dataStr, 0);
163 return error_code;
164 }
165
166 JNIEXPORT jint JNICALL Java_java_util_prefs_WindowsPreferences_WindowsRegDeleteValue
167 (JNIEnv* env, jclass this_class, jint hKey, jbyteArray valueName) {
168 char* valueNameStr;
169 int error_code = -1;
170 if (valueName == NULL) {return -1;}
171 valueNameStr = (*env)->GetByteArrayElements(env, valueName, NULL);
172 CHECK_NULL_RETURN(valueNameStr, -1);
173 error_code = RegDeleteValue((HKEY)hKey, valueNameStr);
174 (*env)->ReleaseByteArrayElements(env, valueName, valueNameStr, 0);
175 return error_code;
176 }
177
178 JNIEXPORT jintArray JNICALL Java_java_util_prefs_WindowsPreferences_WindowsRegQueryInfoKey
179 (JNIEnv* env, jclass this_class, jint hKey) {
180 jintArray result = NULL;
181 int tmp[5];
182 int valuesNumber = -1;
183 int maxValueNameLength = -1;
184 int maxSubKeyLength = -1;
185 int subKeysNumber = -1;
186 int errorCode = -1;
187 errorCode = RegQueryInfoKey((HKEY)hKey, NULL, NULL, NULL,
188 &subKeysNumber, &maxSubKeyLength, NULL,
189 &valuesNumber, &maxValueNameLength,
190 NULL, NULL, NULL);
191 tmp[0]= subKeysNumber;
192 tmp[1]= (int)errorCode;
193 tmp[2]= valuesNumber;
194 tmp[3]= maxSubKeyLength;
195 tmp[4]= maxValueNameLength;
196 result = (*env)->NewIntArray(env,5);
197 if (result != NULL) {
198 (*env)->SetIntArrayRegion(env, result, 0, 5, tmp);
199 }
200 return result;
201 }
202
203 JNIEXPORT jbyteArray JNICALL Java_java_util_prefs_WindowsPreferences_WindowsRegEnumKeyEx
204 (JNIEnv* env, jclass this_class, jint hKey , jint subKeyIndex, jint maxKeyLength) {
205 int size = maxKeyLength;
206 jbyteArray result;
207 char* buffer = NULL;
208 buffer = (char*)malloc(maxKeyLength);
209 if (buffer == NULL) {
210 JNU_ThrowOutOfMemoryError(env, "native memory allocation failed");
211 return NULL;
212 }
213 if (RegEnumKeyEx((HKEY) hKey, subKeyIndex, buffer, &size, NULL, NULL,
214 NULL, NULL) != ERROR_SUCCESS){
215 free(buffer);
216 return NULL;
217 }
218 result = (*env)->NewByteArray(env, size + 1);
219 if (result != NULL) {
220 (*env)->SetByteArrayRegion(env, result, 0, size + 1, buffer);
221 }
222 free(buffer);
223 return result;
224 }
225
226 JNIEXPORT jbyteArray JNICALL Java_java_util_prefs_WindowsPreferences_WindowsRegEnumValue
227 (JNIEnv* env, jclass this_class, jint hKey , jint valueIndex, jint maxValueNameLength){
228 int size = maxValueNameLength;
229 jbyteArray result;
230 char* buffer = NULL;
231 int error_code;
232 buffer = (char*)malloc(maxValueNameLength);
233 if (buffer == NULL) {
234 JNU_ThrowOutOfMemoryError(env, "native memory allocation failed");
235 return NULL;
236 }
237 error_code = RegEnumValue((HKEY) hKey, valueIndex, buffer,
238 &size, NULL, NULL, NULL, NULL);
239 if (error_code!= ERROR_SUCCESS){
240 free(buffer);
241 return NULL;
242 }
243 result = (*env)->NewByteArray(env, size + 1);
244 if (result != NULL) {
245 (*env)->SetByteArrayRegion(env, result, 0, size + 1, buffer);
246 }
247 free(buffer);
248 return result;
249 }
250
251
252 #ifdef __cplusplus
253 }
254 #endif