1 | /* |
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2 | * stat() - POSIX 1003.1b 5.6.2 - Get File Status |
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3 | * |
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4 | * Reused from lstat(). |
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5 | * |
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6 | * COPYRIGHT (c) 1989-1999. |
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7 | * On-Line Applications Research Corporation (OAR). |
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8 | * |
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9 | * The license and distribution terms for this file may be |
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10 | * found in the file LICENSE in this distribution or at |
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11 | * http://www.OARcorp.com/rtems/license.html. |
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12 | * |
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13 | * $Id$ |
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14 | */ |
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15 | |
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16 | #if HAVE_CONFIG_H |
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17 | #include "config.h" |
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18 | #endif |
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19 | |
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20 | /* |
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21 | * lstat() and stat() share the same implementation with a minor |
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22 | * difference on how links are evaluated. |
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23 | */ |
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24 | |
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25 | #ifndef _STAT_NAME |
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26 | #define _STAT_NAME stat |
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27 | #define _STAT_R_NAME _stat_r |
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28 | #define _STAT_FOLLOW_LINKS TRUE |
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29 | #endif |
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30 | |
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31 | |
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32 | #include <rtems.h> |
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33 | |
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34 | #if !defined(RTEMS_UNIX) |
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35 | |
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36 | #include <rtems/libio.h> |
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37 | #include <sys/types.h> |
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38 | #include <sys/stat.h> |
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39 | #include <unistd.h> |
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40 | #include <fcntl.h> |
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41 | #include <errno.h> |
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42 | |
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43 | #include <rtems/libio_.h> |
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44 | |
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45 | int _STAT_NAME( |
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46 | const char *path, |
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47 | struct stat *buf |
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48 | ) |
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49 | { |
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50 | int status; |
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51 | rtems_filesystem_location_info_t loc; |
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52 | |
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53 | /* |
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54 | * Check to see if we were passed a valid pointer. |
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55 | */ |
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56 | |
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57 | if ( !buf ) |
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58 | set_errno_and_return_minus_one( EFAULT ); |
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59 | |
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60 | status = rtems_filesystem_evaluate_path( path, 0, &loc, _STAT_FOLLOW_LINKS ); |
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61 | if ( status != 0 ) |
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62 | return -1; |
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63 | |
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64 | if ( !loc.handlers->fstat_h ){ |
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65 | rtems_filesystem_freenode( &loc ); |
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66 | set_errno_and_return_minus_one( ENOTSUP ); |
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67 | } |
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68 | |
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69 | /* |
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70 | * Zero out the stat structure so the various support |
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71 | * versions of stat don't have to. |
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72 | */ |
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73 | |
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74 | memset( buf, 0, sizeof(struct stat) ); |
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75 | |
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76 | status = (*loc.handlers->fstat_h)( &loc, buf ); |
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77 | |
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78 | rtems_filesystem_freenode( &loc ); |
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79 | |
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80 | return status; |
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81 | } |
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82 | #endif |
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83 | |
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84 | /* |
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85 | * _stat_r, _lstat_r |
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86 | * |
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87 | * This is the Newlib dependent reentrant version of stat() and lstat(). |
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88 | */ |
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89 | |
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90 | #if defined(RTEMS_NEWLIB) |
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91 | |
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92 | #include <reent.h> |
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93 | |
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94 | int _STAT_R_NAME( |
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95 | struct _reent *ptr, |
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96 | const char *path, |
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97 | struct stat *buf |
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98 | ) |
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99 | { |
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100 | return _STAT_NAME( path, buf ); |
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101 | } |
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102 | #endif |
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