1 /*

     2  * Copyright (c) 2011, 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 #import <dlfcn.h>

    27 #import <Cocoa/Cocoa.h>

    28 #import <JavaNativeFoundation/JavaNativeFoundation.h>

    29 

    30 #ifndef MAXPATHLEN

    31 #define MAXPATHLEN PATH_MAX

    32 #endif

    33 

    34 static jboolean

    35 GetPathFromCurrentBinary(char *buf, jint bufsize)

    36 {

    37     Dl_info dlinfo;

    38     dladdr((void *)GetPathFromCurrentBinary, &dlinfo);

    39     if (realpath(dlinfo.dli_fname, buf) == NULL) {

    40 //      fprintf(stderr, "Error: realpath(`%s') failed.\n", dlinfo.dli_fname);

    41         return JNI_FALSE;

    42     }

    43 

    44     const char *libawt = "lib/libawt.dylib";

    45     int strLen, libawtLen;

    46 

    47     strLen = strlen(buf);

    48     libawtLen = strlen(libawt);

    49 

    50     if (strLen < libawtLen ||

    51         strcmp(buf + strLen - libawtLen, libawt) != 0) {

    52         return JNI_FALSE;

    53     }

    54 

    55     buf[strLen - libawtLen] = '\0';

    56 

    57     return JNI_TRUE;

    58 }

    59 

    60 #define JAVA_DLL "libjava.dylib"

    61 

    62 static jboolean

    63 GetJREPath(char *buf, jint bufsize)

    64 {

    65     /* try to get the path from the current binary, if not, bail to the framework */

    66     if (GetPathFromCurrentBinary(buf, bufsize) == JNI_TRUE) {

    67         /* does the rest of the JRE exist? */

    68         char libjava[MAXPATHLEN];

    69         snprintf(libjava, MAXPATHLEN, "%s/lib/" JAVA_DLL, buf);

    70         if (access(libjava, F_OK) == 0) {

    71             return JNI_TRUE;

    72         }

    73     }

    74 

    75     return JNI_FALSE;

    76 }

    77 

    78 static NSString *getRunningJavaBundle()

    79 {

    80     char path[MAXPATHLEN];

    81     GetJREPath(path, MAXPATHLEN);

    82     return [[NSString alloc] initWithFormat:@"%@/bundle", [NSString stringWithUTF8String:path]];

    83 }

    84 

    85 /*

    86  * Class:     com_apple_resources_LoadNativeBundleAction

    87  * Method:    getPathToBundleFile

    88  * Signature: (Ljava/lang/String)Ljava/lang/String;

    89  */

    90 JNIEXPORT jstring JNICALL

    91 Java_com_apple_resources_LoadNativeBundleAction_getPathToBundleFile

    92     (JNIEnv *env, jclass klass, jstring filename)

    93 {

    94     jstring returnVal = NULL;

    95     if (filename == NULL) {

    96         return NULL;

    97     }

    98 

    99 JNF_COCOA_ENTER(env);

   100     NSBundle *javaBundle = [NSBundle bundleWithPath:getRunningJavaBundle()];

   101     NSString *baseFilename = JNFJavaToNSString(env, filename);

   102     NSString *propertyFilePath = [javaBundle pathForResource:baseFilename ofType:@"properties"];

   103 

   104     if (propertyFilePath != nil) {

   105         returnVal = JNFNSToJavaString(env, propertyFilePath);

   106     }

   107 JNF_COCOA_EXIT(env);

   108 

   109     return returnVal;

   110 }