JNIEXPORT jint JNICALL Java_org_netbeans_installer_utils_system_windows_WindowsRegistry_get32BitValue0()

in src/main/cpp/jnilib/windows/src/jni_WindowsRegistry.c [393:425]

• 28 lines of code
• 6 McCabe index (conditional complexity)

JNIEXPORT jint JNICALL Java_org_netbeans_installer_utils_system_windows_WindowsRegistry_get32BitValue0(JNIEnv *jEnv, jobject jObject, jint jMode, jint jSection, jstring jKey, jstring jName) {
    HKEY  hkey   = 0;
    unsigned short* key   = getWideChars(jEnv, jKey);
    unsigned short* value = getWideChars(jEnv, jName);
    
    jint result = -1;
    if(RegOpenKeyExW(getHKEY(jSection), key, 0, KEY_QUERY_VALUE | getMode(jMode), &hkey) == ERROR_SUCCESS) {
        DWORD dwType    = 0;
        DWORD dwValue   = 0;
        DWORD dwBufSize = sizeof(dwValue);
        
        if (RegQueryValueExW(hkey, value, NULL, &dwType, (LPBYTE) &dwValue, &dwBufSize) == ERROR_SUCCESS) {
            if ((dwType == REG_DWORD) || (dwType == REG_DWORD_BIG_ENDIAN)) {
                result = dwValue;
            } else {
                throwException(jEnv, "Value is of wrong type");
            }
        } else {
            throwException(jEnv, "Cannot read key data");
        }
    } else {
        throwException(jEnv, "Could not open key");
    }
    
    if (hkey != 0) {
        RegCloseKey(hkey);
    }
    
    FREE(key);
    FREE(value);
    
    return result;
}