fs_inodebasename.c 2.3 KB

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  1. /****************************************************************************
  2. * fs/inode/fs_inodebasename.c
  3. *
  4. * Licensed to the Apache Software Foundation (ASF) under one or more
  5. * contributor license agreements. See the NOTICE file distributed with
  6. * this work for additional information regarding copyright ownership. The
  7. * ASF licenses this file to you under the Apache License, Version 2.0 (the
  8. * "License"); you may not use this file except in compliance with the
  9. * License. You may obtain a copy of the License at
  10. *
  11. * http://www.apache.org/licenses/LICENSE-2.0
  12. *
  13. * Unless required by applicable law or agreed to in writing, software
  14. * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  15. * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  16. * License for the specific language governing permissions and limitations
  17. * under the License.
  18. *
  19. ****************************************************************************/
  20. /****************************************************************************
  21. * Included Files
  22. ****************************************************************************/
  23. #include <nuttx/config.h>
  24. #include "inode/inode.h"
  25. /****************************************************************************
  26. * Public Functions
  27. ****************************************************************************/
  28. /****************************************************************************
  29. * Name: inode_basename
  30. *
  31. * Description:
  32. * Given a path with node names separated by '/', return name of last
  33. * segment in the path. ""
  34. *
  35. ****************************************************************************/
  36. FAR const char *inode_basename(FAR const char *name)
  37. {
  38. FAR const char *basename = NULL;
  39. for (; ; )
  40. {
  41. /* Get the name for the next path segment */
  42. name = inode_nextname(name);
  43. /* When the final segment is terminated by the NUL character, then
  44. * previous name that we saved is the basename.
  45. */
  46. if (name == NULL || *name == '\0')
  47. {
  48. /* Break out of the loop with basename pointer to the final
  49. * segment of the path.
  50. */
  51. break;
  52. }
  53. /* Set basename to point to the remainder of the path */
  54. basename = name;
  55. }
  56. return basename;
  57. }