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/*
* Copyright (c) 2021, 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.
*
* 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 <stdio.h>
#include <string.h>
#include <jvmti.h>
#ifdef __cplusplus
extern "C" {
#endif
static jvmtiEnv *jvmti = NULL;
JNIEXPORT jint JNICALL Agent_OnLoad(JavaVM *jvm, char *options, void *reserved) {
int err = (*jvm)->GetEnv(jvm, (void**) &jvmti, JVMTI_VERSION_9);
if (err != JNI_OK) {
return JNI_ERR;
}
return JNI_OK;
}
JNIEXPORT jstring JNICALL
Java_GetBootClassPathAppendProp_getSystemProperty(JNIEnv *env, jclass cls) {
jvmtiError err;
char* prop_value;
err = (*jvmti)->GetSystemProperty(jvmti, "jdk.boot.class.path.append", &prop_value);
if (err == JVMTI_ERROR_NOT_AVAILABLE) {
return NULL;
}
if (err != JVMTI_ERROR_NONE) {
char err_msg[50];
snprintf(err_msg, 50, "Wrong JVM TI error code: %d", err);
return (*env)->NewStringUTF(env, err_msg);
}
return (*env)->NewStringUTF(env, prop_value);
}
#ifdef __cplusplus
}
#endif
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