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1 /* |
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2 * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 #include <Windows.h> |
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27 #include <strsafe.h> |
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28 #include <tchar.h> |
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29 #include <jni.h> |
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30 |
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31 #include "Utils.h" |
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32 |
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33 // Max value name size per MSDN plus NULL |
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34 #define VALUE_NAME_SIZE 16384 |
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35 |
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36 #ifdef __cplusplus |
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37 extern "C" { |
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38 #endif |
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39 #undef jdk_incubator_jpackage_internal_WindowsRegistry_HKEY_LOCAL_MACHINE |
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40 #define jdk_incubator_jpackage_internal_WindowsRegistry_HKEY_LOCAL_MACHINE 1L |
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41 |
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42 /* |
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43 * Class: jdk_incubator_jpackage_internal_WindowsRegistry |
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44 * Method: readDwordValue |
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45 * Signature: (ILjava/lang/String;Ljava/lang/String;I)I |
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46 */ |
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47 JNIEXPORT jint JNICALL |
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48 Java_jdk_incubator_jpackage_internal_WindowsRegistry_readDwordValue( |
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49 JNIEnv *pEnv, jclass c, jint key, jstring jSubKey, |
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50 jstring jValue, jint defaultValue) { |
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51 jint jResult = defaultValue; |
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52 |
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53 if (key != jdk_incubator_jpackage_internal_WindowsRegistry_HKEY_LOCAL_MACHINE) { |
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54 return jResult; |
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55 } |
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56 |
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57 wstring subKey = GetStringFromJString(pEnv, jSubKey); |
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58 wstring value = GetStringFromJString(pEnv, jValue); |
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59 |
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60 HKEY hSubKey = NULL; |
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61 LSTATUS status = RegOpenKeyEx(HKEY_LOCAL_MACHINE, subKey.c_str(), 0, |
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62 KEY_QUERY_VALUE, &hSubKey); |
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63 if (status == ERROR_SUCCESS) { |
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64 DWORD dwValue = 0; |
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65 DWORD cbData = sizeof (DWORD); |
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66 status = RegQueryValueEx(hSubKey, value.c_str(), NULL, NULL, |
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67 (LPBYTE) & dwValue, &cbData); |
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68 if (status == ERROR_SUCCESS) { |
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69 jResult = (jint) dwValue; |
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70 } |
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71 |
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72 RegCloseKey(hSubKey); |
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73 } |
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74 |
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75 return jResult; |
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76 } |
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77 |
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78 /* |
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79 * Class: jdk_incubator_jpackage_internal_WindowsRegistry |
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80 * Method: openRegistryKey |
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81 * Signature: (ILjava/lang/String;)J |
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82 */ |
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83 JNIEXPORT jlong JNICALL |
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84 Java_jdk_incubator_jpackage_internal_WindowsRegistry_openRegistryKey( |
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85 JNIEnv *pEnv, jclass c, jint key, jstring jSubKey) { |
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86 if (key != jdk_incubator_jpackage_internal_WindowsRegistry_HKEY_LOCAL_MACHINE) { |
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87 return 0; |
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88 } |
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89 |
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90 wstring subKey = GetStringFromJString(pEnv, jSubKey); |
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91 HKEY hSubKey = NULL; |
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92 LSTATUS status = RegOpenKeyEx(HKEY_LOCAL_MACHINE, subKey.c_str(), 0, |
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93 KEY_QUERY_VALUE, &hSubKey); |
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94 if (status == ERROR_SUCCESS) { |
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95 return (jlong)hSubKey; |
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96 } |
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97 |
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98 return 0; |
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99 } |
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100 |
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101 /* |
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102 * Class: jdk_incubator_jpackage_internal_WindowsRegistry |
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103 * Method: enumRegistryValue |
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104 * Signature: (JI)Ljava/lang/String; |
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105 */ |
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106 JNIEXPORT jstring JNICALL |
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107 Java_jdk_incubator_jpackage_internal_WindowsRegistry_enumRegistryValue( |
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108 JNIEnv *pEnv, jclass c, jlong lKey, jint jIndex) { |
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109 HKEY hKey = (HKEY)lKey; |
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110 TCHAR valueName[VALUE_NAME_SIZE] = {0}; // Max size per MSDN plus NULL |
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111 DWORD cchValueName = VALUE_NAME_SIZE; |
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112 LSTATUS status = RegEnumValue(hKey, (DWORD)jIndex, valueName, |
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113 &cchValueName, NULL, NULL, NULL, NULL); |
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114 if (status == ERROR_SUCCESS) { |
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115 size_t chLength = 0; |
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116 if (StringCchLength(valueName, VALUE_NAME_SIZE, &chLength) |
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117 == S_OK) { |
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118 return GetJStringFromString(pEnv, valueName, (jsize)chLength); |
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119 } |
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120 } |
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121 |
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122 return NULL; |
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123 } |
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124 |
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125 /* |
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126 * Class: jdk_incubator_jpackage_internal_WindowsRegistry |
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127 * Method: closeRegistryKey |
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128 * Signature: (J)V |
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129 */ |
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130 JNIEXPORT void JNICALL |
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131 Java_jdk_incubator_jpackage_internal_WindowsRegistry_closeRegistryKey( |
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132 JNIEnv *pEnc, jclass c, jlong lKey) { |
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133 HKEY hKey = (HKEY)lKey; |
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134 RegCloseKey(hKey); |
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135 } |
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136 |
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137 /* |
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138 * Class: jdk_incubator_jpackage_internal_WindowsRegistry |
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139 * Method: comparePaths |
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140 * Signature: (Ljava/lang/String;Ljava/lang/String;)Z |
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141 */ |
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142 JNIEXPORT jboolean JNICALL |
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143 Java_jdk_incubator_jpackage_internal_WindowsRegistry_comparePaths( |
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144 JNIEnv *pEnv, jclass c, jstring jPath1, jstring jPath2) { |
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145 wstring path1 = GetStringFromJString(pEnv, jPath1); |
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146 wstring path2 = GetStringFromJString(pEnv, jPath2); |
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147 |
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148 path1 = GetLongPath(path1); |
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149 path2 = GetLongPath(path2); |
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150 |
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151 if (path1.length() == 0 || path2.length() == 0) { |
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152 return JNI_FALSE; |
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153 } |
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154 |
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155 if (path1.length() != path2.length()) { |
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156 return JNI_FALSE; |
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157 } |
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158 |
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159 if (_tcsnicmp(path1.c_str(), path2.c_str(), path1.length()) == 0) { |
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160 return JNI_TRUE; |
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161 } |
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162 |
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163 return JNI_FALSE; |
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164 } |
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165 |
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166 #ifdef __cplusplus |
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167 } |
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168 #endif |