1 /*

     2  * Copyright (c) 2003, 2018, 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.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 

    24 #include <stdio.h>

    25 #include <string.h>

    26 #include "jvmti.h"

    27 #include "agent_common.h"

    28 #include "JVMTITools.h"

    29 

    30 #ifdef __cplusplus

    31 extern "C" {

    32 #endif

    33 

    34 #ifndef JNI_ENV_ARG

    35 

    36 #ifdef __cplusplus

    37 #define JNI_ENV_ARG(x, y) y

    38 #define JNI_ENV_PTR(x) x

    39 #else

    40 #define JNI_ENV_ARG(x,y) x, y

    41 #define JNI_ENV_PTR(x) (*x)

    42 #endif

    43 

    44 #endif

    45 

    46 #define PASSED 0

    47 #define STATUS_FAILED 2

    48 

    49 static jvmtiEnv *jvmti = NULL;

    50 static jint result = PASSED;

    51 static jboolean printdump = JNI_FALSE;

    52 

    53 #ifdef STATIC_BUILD

    54 JNIEXPORT jint JNICALL Agent_OnLoad_isarray004(JavaVM *jvm, char *options, void *reserved) {

    55     return Agent_Initialize(jvm, options, reserved);

    56 }

    57 JNIEXPORT jint JNICALL Agent_OnAttach_isarray004(JavaVM *jvm, char *options, void *reserved) {

    58     return Agent_Initialize(jvm, options, reserved);

    59 }

    60 JNIEXPORT jint JNI_OnLoad_isarray004(JavaVM *jvm, char *options, void *reserved) {

    61     return JNI_VERSION_1_8;

    62 }

    63 #endif

    64 jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {

    65     jint res;

    66 

    67     if (options != NULL && strcmp(options, "printdump") == 0) {

    68         printdump = JNI_TRUE;

    69     }

    70 

    71     res = JNI_ENV_PTR(jvm)->GetEnv(JNI_ENV_ARG(jvm, (void **) &jvmti),

    72         JVMTI_VERSION_1_1);

    73     if (res != JNI_OK || jvmti == NULL) {

    74         printf("Wrong result of a valid call to GetEnv!\n");

    75         return JNI_ERR;

    76     }

    77 

    78     return JNI_OK;

    79 }

    80 

    81 JNIEXPORT jint JNICALL

    82 Java_nsk_jvmti_IsArrayClass_isarray004_check(JNIEnv *env, jclass cls) {

    83     jvmtiError err;

    84     jboolean isArrayClass;

    85 

    86     if (jvmti == NULL) {

    87         printf("JVMTI client was not properly loaded!\n");

    88         return STATUS_FAILED;

    89     }

    90 

    91     if (printdump == JNI_TRUE) {

    92         printf(">>> invalid class check ...\n");

    93     }

    94     err = jvmti->IsArrayClass(NULL, &isArrayClass);

    95     if (err != JVMTI_ERROR_INVALID_CLASS) {

    96         printf("Error expected: JVMTI_ERROR_INVALID_CLASS,\n");

    97         printf("\tactual: %s (%d)\n", TranslateError(err), err);

    98         result = STATUS_FAILED;

    99     }

   100 

   101     if (printdump == JNI_TRUE) {

   102         printf(">>> null pointer check ...\n");

   103     }

   104     err = jvmti->IsArrayClass(cls, NULL);

   105     if (err != JVMTI_ERROR_NULL_POINTER) {

   106         printf("Error expected: JVMTI_ERROR_NULL_POINTER,\n");

   107         printf("\tactual: %s (%d)\n", TranslateError(err), err);

   108         result = STATUS_FAILED;

   109     }

   110 

   111     if (printdump == JNI_TRUE) {

   112         printf(">>> ... done\n");

   113     }

   114 

   115     return result;

   116 }

   117 

   118 #ifdef __cplusplus

   119 }

   120 #endif