1 /*
   2  * Copyright (c) 2014, 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 <string.h>
  27 
  28 #include "jni.h"
  29 #include "jni_util.h"
  30 #include "jlong.h"
  31 #include "jvm.h"
  32 #include "jdk_util.h"
  33 
  34 #include "sun_misc_URLClassPath.h"
  35 
  36 extern char*
  37 getUTF(JNIEnv *env, jstring str, char* localBuf, int bufSize);
  38 
  39 
  40 JNIEXPORT jboolean JNICALL
  41 Java_sun_misc_URLClassPath_knownToNotExist0(JNIEnv *env, jclass cls, jobject loader,
  42                                             jstring classname)
  43 {
  44     char *clname;
  45     jboolean result = JNI_FALSE;
  46     char buf[128];
  47 
  48     if (classname == NULL) {
  49         JNU_ThrowNullPointerException(env, NULL);
  50         return result;
  51     }
  52 
  53     clname = getUTF(env, classname, buf, sizeof(buf));
  54     if (clname == NULL) {
  55         JNU_ThrowOutOfMemoryError(env, NULL);
  56         return result;
  57     }
  58     VerifyFixClassname(clname);
  59 
  60     if (!VerifyClassname(clname, JNI_TRUE)) {  /* expects slashed name */
  61         goto done;
  62     }
  63 
  64     result = JVM_KnownToNotExist(env, loader, clname);
  65 
  66  done:
  67     if (clname != buf) {
  68         free(clname);
  69     }
  70 
  71     return result;
  72 }
  73 
  74 JNIEXPORT jobjectArray JNICALL
  75 Java_sun_misc_URLClassPath_getLookupCacheURLs(JNIEnv *env, jclass cls, jobject loader)
  76 {
  77     return JVM_GetResourceLookupCacheURLs(env, loader);
  78 }
  79 
  80 
  81 JNIEXPORT jintArray JNICALL
  82 Java_sun_misc_URLClassPath_getLookupCacheForClassLoader(JNIEnv *env, jclass cls,
  83                                                         jobject loader,
  84                                                         jstring resource_name)
  85 {
  86     char *resname;
  87     jintArray result = NULL;
  88     char buf[128];
  89 
  90     if (resource_name == NULL) {
  91         JNU_ThrowNullPointerException(env, NULL);
  92         return result;
  93     }
  94 
  95     resname = getUTF(env, resource_name, buf, sizeof(buf));
  96     if (resname == NULL) {
  97         JNU_ThrowOutOfMemoryError(env, NULL);
  98         return result;
  99     }
 100     result = JVM_GetResourceLookupCache(env, loader, resname);
 101 
 102  done:
 103     if (resname != buf) {
 104         free(resname);
 105     }
 106 
 107     return result;
 108 }
 109