1 /*
   2  * Copyright (c) 2013, 2020, 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 #ifdef HEADLESS
  27     #error This file should not be included in headless library
  28 #endif
  29 
  30 #include "gnome_interface.h"
  31 
  32 GNOME_URL_SHOW_TYPE *gnome_url_show = NULL;
  33 
  34 gboolean gnome_load() {
  35      void *vfs_handle;
  36      void *gnome_handle;
  37      const char *errmsg;
  38      GNOME_VFS_INIT_TYPE *gnome_vfs_init;
  39 
  40      // trying to open the gnomevfs. VERSIONED_JNI_LIB_NAME
  41      // macros formats the library name in a system specific manner
  42      // see jdk/src/solaris/javavm/export/jvm_md.h for more details
  43      vfs_handle = dlopen(VERSIONED_JNI_LIB_NAME("gnomevfs-2", "0"), RTLD_LAZY);
  44      if (vfs_handle == NULL) {
  45          // if we cannot load the library using a version assumed by JNI
  46          // we are trying to load the library without a version suffix
  47          vfs_handle = dlopen(JNI_LIB_NAME("gnomevfs-2"), RTLD_LAZY);
  48          if (vfs_handle == NULL) {
  49  #ifdef DEBUG
  50              fprintf(stderr, "can not load libgnomevfs-2.so\n");
  51  #endif
  52              return FALSE;
  53          }
  54      }
  55      dlerror(); /* Clear errors */
  56      gnome_vfs_init = (GNOME_VFS_INIT_TYPE*)dlsym(vfs_handle, "gnome_vfs_init");
  57      if (gnome_vfs_init == NULL){
  58  #ifdef DEBUG
  59          fprintf(stderr, "dlsym( gnome_vfs_init) returned NULL\n");
  60  #endif
  61          return FALSE;
  62      }
  63      if ((errmsg = dlerror()) != NULL) {
  64  #ifdef DEBUG
  65          fprintf(stderr, "can not find symbol gnome_vfs_init %s \n", errmsg);
  66  #endif
  67          return FALSE;
  68      }
  69      // call gonme_vfs_init()
  70      (*gnome_vfs_init)();
  71 
  72      gnome_handle = dlopen(VERSIONED_JNI_LIB_NAME("gnome-2", "0"), RTLD_LAZY);
  73      if (gnome_handle == NULL) {
  74          gnome_handle = dlopen(JNI_LIB_NAME("gnome-2"), RTLD_LAZY);
  75          if (gnome_handle == NULL) {
  76  #ifdef DEBUG
  77              fprintf(stderr, "can not load libgnome-2.so\n");
  78  #endif
  79              return FALSE;
  80          }
  81      }
  82      dlerror(); /* Clear errors */
  83      gnome_url_show = (GNOME_URL_SHOW_TYPE*)dlsym(gnome_handle, "gnome_url_show");
  84      if ((errmsg = dlerror()) != NULL) {
  85  #ifdef DEBUG
  86          fprintf(stderr, "can not find symble gnome_url_show\n");
  87  #endif
  88          return FALSE;
  89      }
  90      return TRUE;
  91 }