/*

 * 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

 * particular file as subject to the "Classpath" exception as provided

 *

 * 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.

 *

 */

#include "jni.h"

#include "jni_util.h"

#include "jvm.h"

#include "java_lang_SecurityManager.h"

#include "java_lang_ClassLoader.h"

#include "java_util_ResourceBundle.h"

/*

 * Make sure a security manager instance is initialized.

 * TRUE means OK, FALSE means not.

 */

static jboolean

check(JNIEnv *env, jobject this)

{

    static jfieldID initField = 0;

    jboolean initialized = JNI_FALSE;

    if (initField == 0) {

        jclass clazz = (*env)->FindClass(env, "java/lang/SecurityManager");

        if (clazz == 0) {

            (*env)->ExceptionClear(env);

            return JNI_FALSE;

        }

        initField = (*env)->GetFieldID(env, clazz, "initialized", "Z");

        if (initField == 0) {

            (*env)->ExceptionClear(env);

            return JNI_FALSE;

        }

    }

    initialized = (*env)->GetBooleanField(env, this, initField);

    if (initialized == JNI_TRUE) {

        return JNI_TRUE;

    } else {

        jclass securityException =

            (*env)->FindClass(env, "java/lang/SecurityException");

        if (securityException != 0) {

            (*env)->ThrowNew(env, securityException,

                             "security manager not initialized.");

        }

        return JNI_FALSE;

    }

}

JNIEXPORT jobjectArray JNICALL

Java_java_lang_SecurityManager_getClassContext(JNIEnv *env, jobject this)

{

    if (!check(env, this)) {

        return NULL;            /* exception */

    }

    return JVM_GetClassContext(env);

}

JNIEXPORT jclass JNICALL

Java_java_lang_SecurityManager_currentLoadedClass0(JNIEnv *env, jobject this)

{

    /* Make sure the security manager instance is initialized */

    if (!check(env, this)) {

        return NULL;            /* exception */

    }

    return JVM_CurrentLoadedClass(env);

}

JNIEXPORT jobject JNICALL

Java_java_lang_SecurityManager_currentClassLoader0(JNIEnv *env, jobject this)

{

    /* Make sure the security manager instance is initialized */

    if (!check(env, this)) {

        return NULL;            /* exception */

    }

    return JVM_CurrentClassLoader(env);

}

JNIEXPORT jint JNICALL

Java_java_lang_SecurityManager_classDepth(JNIEnv *env, jobject this,

                                          jstring name)

{

    /* Make sure the security manager instance is initialized */

    if (!check(env, this)) {

        return -1;              /* exception */

    }

    if (name == NULL) {

      JNU_ThrowNullPointerException(env, 0);

      return -1;

    }

    return JVM_ClassDepth(env, name);

}

JNIEXPORT jint JNICALL

Java_java_lang_SecurityManager_classLoaderDepth0(JNIEnv *env, jobject this)

{

    /* Make sure the security manager instance is initialized */

    if (!check(env, this)) {

        return -1;              /* exception */

    }

    return JVM_ClassLoaderDepth(env);

}