1 /*
   2  * Copyright (c) 2013, 2015, 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 
  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 DEBUG
  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 DEBUG
  55          fprintf(stderr, "dlsym( gnome_vfs_init) returned NULL\n");
  56  #endif
  57          return FALSE;
  58      }
  59      if ((errmsg = dlerror()) != NULL) {
  60  #ifdef DEBUG
  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 DEBUG
  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 DEBUG
  82          fprintf(stderr, "can not find symble gnome_url_show\n");
  83  #endif
  84          return FALSE;
  85      }
  86      return TRUE;
  87 }