jdk
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1/*
2* Copyright (c) 2004, 2024, 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/*
34* JNI_OnLoad
35*/
36JNIEXPORT jint JNICALL DEF_JNI_OnLoad(JavaVM *vm, void *reserved)37{
38JNIEnv* env;39
40if ((*vm)->GetEnv(vm, (void**) &env, JNI_VERSION_1_2) != JNI_OK) {41return JNI_EVERSION; /* JNI version not supported */42}43
44return JNI_VERSION_19;45}
46
47/*
48* Class: jdk_internal_agent_FileSystemImpl
49* Method: isAccessUserOnly0
50* Signature: (Ljava/lang/String;)Z
51*/
52JNIEXPORT jboolean JNICALL Java_jdk_internal_agent_FileSystemImpl_isAccessUserOnly053(JNIEnv *env, jclass ignored, jstring str)54{
55jboolean res = JNI_FALSE;56jboolean isCopy;57const char *path = JNU_GetStringPlatformChars(env, str, &isCopy);58if (path != NULL) {59struct stat sb;60if (stat(path, &sb) == 0) {61res = ((sb.st_mode & (S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)) == 0) ? JNI_TRUE : JNI_FALSE;62} else {63JNU_ThrowIOExceptionWithLastError(env, "stat failed");64}65if (isCopy) {66JNU_ReleaseStringPlatformChars(env, str, path);67}68}69return res;70}
71