1 /*

     2  * Copyright (c) 2004, 2012, 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.  Oracle designates this

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

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

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

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

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

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

    15  * accompanied this code).

    16  *

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

    18  * 2 along with this work; if not, write to the Free Software Foundation,

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

    20  *

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

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

    23  * questions.

    24  */

    25 

    26 #include <sys/types.h>

    27 #include <sys/stat.h>

    28 

    29 #include "jni.h"

    30 #include "jni_util.h"

    31 #include "jdk_internal_agent_FileSystemImpl.h"

    32 

    33 #ifdef _ALLBSD_SOURCE

    34 #define stat64 stat

    35 #endif

    36 

    37 /*

    38  * JNI_OnLoad

    39  */

    40 JNIEXPORT jint JNICALL DEF_JNI_OnLoad(JavaVM *vm, void *reserved)

    41 {

    42     JNIEnv* env;

    43 

    44     if ((*vm)->GetEnv(vm, (void**) &env, JNI_VERSION_1_2) != JNI_OK) {

    45         return JNI_EVERSION; /* JNI version not supported */

    46     }

    47 

    48     return JNI_VERSION_9;

    49 }

    50 

    51 /*

    52  * Class:     jdk_internal_agent_FileSystemImpl

    53  * Method:    isAccessUserOnly0

    54  * Signature: (Ljava/lang/String;)Z

    55  */

    56 JNIEXPORT jboolean JNICALL Java_jdk_internal_agent_FileSystemImpl_isAccessUserOnly0

    57   (JNIEnv *env, jclass ignored, jstring str)

    58 {

    59     jboolean res = JNI_FALSE;

    60     jboolean isCopy;

    61     const char *path = JNU_GetStringPlatformChars(env, str, &isCopy);

    62     if (path != NULL) {

    63         struct stat64 sb;

    64         if (stat64(path, &sb) == 0) {

    65             res = ((sb.st_mode & (S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)) == 0) ? JNI_TRUE : JNI_FALSE;

    66         } else {

    67             JNU_ThrowIOExceptionWithLastError(env, "stat64 failed");

    68         }

    69         if (isCopy) {

    70             JNU_ReleaseStringPlatformChars(env, str, path);

    71         }

    72     }

    73     return res;

    74 }