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  1. /*
  2.  * Copyright (c) 2007 Jakub Jermar
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @addtogroup fs
  30.  * @{
  31.  */
  32.  
  33. /**
  34.  * @file    fat_ops.c
  35.  * @brief   Implementation of VFS operations for the FAT file system server.
  36.  */
  37.  
  38. #include "fat.h"
  39. #include "../../vfs/vfs.h"
  40. #include <ipc/ipc.h>
  41. #include <async.h>
  42. #include <errno.h>
  43.  
  44. #define PLB_GET_CHAR(i)     (plb_ro[(i) % PLB_SIZE])
  45.  
  46. #define FAT_NAME_LEN        8
  47. #define FAT_EXT_LEN     3
  48.  
  49. #define FAT_PAD         ' '
  50.  
  51. #define FAT_DENTRY_UNUSED   0x00
  52. #define FAT_DENTRY_E5_ESC   0x05
  53. #define FAT_DENTRY_DOT      0x2e
  54. #define FAT_DENTRY_ERASED   0xe5
  55.  
  56. static int match_path_component(fat_dentry_t *dentry, unsigned index,
  57.     size_t len)
  58. {
  59. }
  60.  
  61. void fat_lookup(ipc_callid_t rid, ipc_call_t *request)
  62. {
  63.     int first = IPC_GET_ARG1(*request);
  64.     int second = IPC_GET_ARG2(*request);
  65.     int dev_handle = IPC_GET_ARG3(*request);
  66.  
  67.    
  68. }
  69.  
  70. /**
  71.  * @}
  72.  */
  73.