system/modules/iso9660/init.c

   1 /*
   2     iso9660 - An iso9660 CDI driver with Rockridge support
   3     Copyright (C) 2008  Janosch Gräf <janosch.graef@gmx.net>
   4
   5     This program is free software: you can redistribute it and/or modify
   6     it under the terms of the GNU Lesser General Public License as published by
   7     the Free Software Foundation, either version 3 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU Lesser General Public License for more details.
  14
  15     You should have received a copy of the GNU Lesser General Public License
  16     along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 */
  18
  19 #include <stdlib.h>
  20
  21 #include "cdi/fs.h"
  22 #include "cdi/cache.h"
  23
  24 #include "iso9660_cdi.h"
  25
  26 #include "volume_descriptor.h"
  27
  28 /**
  29  * Initializes a ISO9660 filesystem
  30  *  @param fs Filesystem to initialize
  31  *  @return If initialization was successful
  32  */
  33 int iso9660_fs_init(struct cdi_fs_filesystem *fs) {
  34   debug("iso9660_fs_init(0x%x)\n",fs);
  35   struct iso9660_voldesc_prim *voldesc = malloc(sizeof(struct iso9660_voldesc_prim));
  36   if (iso9660_voldesc_load(fs,ISO9660_VOLDESC_PRIM,voldesc)!=-1) {
  37     struct iso9660_fs_res *root_res = iso9660_dirrec_load(&voldesc->root_dir,NULL,voldesc);
  38     root_res->cache = cdi_cache_create(voldesc->sector_size,0,iso9660_sector_read_cache,NULL,fs);
  39     fs->root_res = (struct cdi_fs_res*)root_res;
  40     return 1;
  41   }
  42   else return 0;
  43 }
  44
  45 /**
  46  * Destroys a FS
  47  *  @param fs Filesystem to destroy
  48  *  @return If destroy was successful
  49  */
  50 int iso9660_fs_destroy(struct cdi_fs_filesystem *fs) {
  51   fprintf(stderr,"iso9660_fs_destroy(0x%x)\n",fs);
  52   struct iso9660_fs_res *root_res = (struct iso9660_fs_res*)(fs->root_res);
  53   free(root_res->voldesc);
  54   cdi_cache_destroy(root_res->cache);
  55   return iso9660_fs_res_destroy(root_res);
  56 }