qemu/roms/openbios/fs/iso9660/iso9660_open.c

   1 /*
   2  *
   3  * (c) 2005-2009 Laurent Vivier <Laurent@vivier.eu>
   4  *
   5  * This file has been copied from EMILE, http://emile.sf.net
   6  *
   7  */
   8
   9 #include "libiso9660.h"
  10
  11 iso9660_FILE* iso9660_open(iso9660_VOLUME *volume, const char* pathname)
  12 {
  13         struct iso_directory_record *root;
  14         struct iso_directory_record *idr;
  15         iso9660_FILE *file;
  16
  17         root = iso9660_get_root_node(volume);
  18         if (root == NULL)
  19                 return NULL;
  20
  21         idr = iso9660_get_node(volume, root, pathname);
  22         if (idr == NULL)
  23                 return NULL;
  24
  25         file = (iso9660_FILE*)malloc(sizeof(iso9660_FILE));
  26         if (file == NULL)
  27                 return NULL;
  28
  29         file->base = isonum_733((char *)idr->extent);
  30         file->size = isonum_733((char *)idr->size);
  31         file->offset = 0;
  32         file->current = -1;
  33         file->volume = volume;
  34         file->path = strdup(pathname);
  35
  36         free(idr);
  37
  38         return file;
  39 }