1 | /** |
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2 | * @file |
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3 | * |
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4 | * @brief Rename a File |
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5 | * @ingroup libcsupport |
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6 | */ |
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7 | |
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8 | /* |
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9 | * COPYRIGHT (c) 1989-2007. |
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10 | * On-Line Applications Research Corporation (OAR). |
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11 | * |
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12 | * Modifications to support reference counting in the file system are |
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13 | * Copyright (c) 2012 embedded brains GmbH. |
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14 | * |
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15 | * The license and distribution terms for this file may be |
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16 | * found in the file LICENSE in this distribution or at |
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17 | * http://www.rtems.org/license/LICENSE. |
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18 | */ |
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19 | |
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20 | #if HAVE_CONFIG_H |
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21 | #include "config.h" |
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22 | #endif |
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23 | |
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24 | #if defined(RTEMS_NEWLIB) && !defined(HAVE__RENAME_R) |
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25 | |
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26 | #include <stdio.h> |
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27 | |
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28 | #include <rtems/libio_.h> |
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29 | |
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30 | /** |
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31 | * POSIX 1003.1b - 5.3.4 - Rename a file |
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32 | */ |
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33 | int _rename_r( |
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34 | struct _reent *ptr __attribute__((unused)), |
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35 | const char *old, |
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36 | const char *new |
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37 | ) |
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38 | { |
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39 | int rv = 0; |
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40 | rtems_filesystem_eval_path_context_t old_ctx; |
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41 | int old_eval_flags = 0; |
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42 | rtems_filesystem_location_info_t old_parentloc; |
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43 | int old_parent_eval_flags = RTEMS_FS_PERMS_WRITE |
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44 | | RTEMS_FS_FOLLOW_HARD_LINK; |
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45 | const rtems_filesystem_location_info_t *old_currentloc = |
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46 | rtems_filesystem_eval_path_start_with_parent( |
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47 | &old_ctx, |
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48 | old, |
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49 | old_eval_flags, |
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50 | &old_parentloc, |
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51 | old_parent_eval_flags |
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52 | ); |
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53 | rtems_filesystem_eval_path_context_t new_ctx; |
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54 | |
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55 | /* FIXME: This is not POSIX conform */ |
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56 | int new_eval_flags = RTEMS_FS_FOLLOW_HARD_LINK |
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57 | | RTEMS_FS_MAKE |
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58 | | RTEMS_FS_EXCLUSIVE; |
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59 | |
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60 | const rtems_filesystem_location_info_t *new_currentloc = |
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61 | rtems_filesystem_eval_path_start( &new_ctx, new, new_eval_flags ); |
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62 | |
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63 | rv = rtems_filesystem_location_exists_in_same_instance_as( |
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64 | old_currentloc, |
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65 | new_currentloc |
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66 | ); |
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67 | if ( rv == 0 ) { |
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68 | rv = (*new_currentloc->mt_entry->ops->rename_h)( |
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69 | &old_parentloc, |
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70 | old_currentloc, |
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71 | new_currentloc, |
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72 | rtems_filesystem_eval_path_get_token( &new_ctx ), |
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73 | rtems_filesystem_eval_path_get_tokenlen( &new_ctx ) |
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74 | ); |
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75 | } |
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76 | |
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77 | rtems_filesystem_eval_path_cleanup_with_parent( &old_ctx, &old_parentloc ); |
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78 | rtems_filesystem_eval_path_cleanup( &new_ctx ); |
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79 | |
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80 | return rv; |
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81 | } |
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82 | #endif |
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