1 /*
2  * Copyright (c) 2013, 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 "gnome_interface.h"
27 
28 GNOME_URL_SHOW_TYPE *gnome_url_show = NULL;
29 
gnome_load()30 gboolean gnome_load() {
31      void *vfs_handle;
32      void *gnome_handle;
33      const char *errmsg;
34      GNOME_VFS_INIT_TYPE *gnome_vfs_init;
35 
36      // trying to open the gnomevfs. VERSIONED_JNI_LIB_NAME
37      // macros formats the library name in a system specific manner
38      // see jdk/src/solaris/javavm/export/jvm_md.h for more details
39      vfs_handle = dlopen(VERSIONED_JNI_LIB_NAME("gnomevfs-2", "0"), RTLD_LAZY);
40      if (vfs_handle == NULL) {
41          // if we cannot load the library using a version assumed by JNI
42          // we are trying to load the library without a version suffix
43          vfs_handle = dlopen(JNI_LIB_NAME("gnomevfs-2"), RTLD_LAZY);
44          if (vfs_handle == NULL) {
45  #ifdef INTERNAL_BUILD
46              fprintf(stderr, "can not load libgnomevfs-2.so\n");
47  #endif
48              return FALSE;
49          }
50      }
51      dlerror(); /* Clear errors */
52      gnome_vfs_init = (GNOME_VFS_INIT_TYPE*)dlsym(vfs_handle, "gnome_vfs_init");
53      if (gnome_vfs_init == NULL){
54  #ifdef INTERNAL_BUILD
55          fprintf(stderr, "dlsym( gnome_vfs_init) returned NULL\n");
56  #endif
57          return FALSE;
58      }
59      if ((errmsg = dlerror()) != NULL) {
60  #ifdef INTERNAL_BUILD
61          fprintf(stderr, "can not find symbol gnome_vfs_init %s \n", errmsg);
62  #endif
63          return FALSE;
64      }
65      // call gonme_vfs_init()
66      (*gnome_vfs_init)();
67 
68      gnome_handle = dlopen(VERSIONED_JNI_LIB_NAME("gnome-2", "0"), RTLD_LAZY);
69      if (gnome_handle == NULL) {
70          gnome_handle = dlopen(JNI_LIB_NAME("gnome-2"), RTLD_LAZY);
71          if (gnome_handle == NULL) {
72  #ifdef INTERNAL_BUILD
73              fprintf(stderr, "can not load libgnome-2.so\n");
74  #endif
75              return FALSE;
76          }
77      }
78      dlerror(); /* Clear errors */
79      gnome_url_show = (GNOME_URL_SHOW_TYPE*)dlsym(gnome_handle, "gnome_url_show");
80      if ((errmsg = dlerror()) != NULL) {
81  #ifdef INTERNAL_BUILD
82          fprintf(stderr, "can not find symble gnome_url_show\n");
83  #endif
84          return FALSE;
85      }
86      return TRUE;
87 }
88