source:
rtems/c/src/lib/libc/stat.c
@
9c3fa30
Last change on this file since 9c3fa30 was 9c3fa30, checked in by Joel Sherrill <joel.sherrill@…>, on 09/28/00 at 20:19:23 | |
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File size: 1.8 KB |
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1 | /* |
2 | * stat() - POSIX 1003.1b 5.6.2 - Get File Status |
3 | * |
4 | * Reused from lstat(). |
5 | * |
6 | * COPYRIGHT (c) 1989-1999. |
7 | * On-Line Applications Research Corporation (OAR). |
8 | * |
9 | * The license and distribution terms for this file may be |
10 | * found in the file LICENSE in this distribution or at |
11 | * http://www.OARcorp.com/rtems/license.html. |
12 | * |
13 | * $Id$ |
14 | */ |
15 | |
16 | /* |
17 | * lstat() and stat() share the same implementation with a minor |
18 | * difference on how links are evaluated. |
19 | */ |
20 | |
21 | #ifndef _STAT_NAME |
22 | #define _STAT_NAME stat |
23 | #define _STAT_R_NAME _stat_r |
24 | #define _STAT_FOLLOW_LINKS TRUE |
25 | #endif |
26 | |
27 | |
28 | #include <rtems.h> |
29 | |
30 | #if !defined(RTEMS_UNIX) |
31 | |
32 | #include <rtems/libio.h> |
33 | #include <sys/types.h> |
34 | #include <sys/stat.h> |
35 | #include <unistd.h> |
36 | #include <fcntl.h> |
37 | #include <errno.h> |
38 | |
39 | #include "libio_.h" |
40 | |
41 | int _STAT_NAME( |
42 | const char *path, |
43 | struct stat *buf |
44 | ) |
45 | { |
46 | int status; |
47 | rtems_filesystem_location_info_t loc; |
48 | |
49 | /* |
50 | * Check to see if we were passed a valid pointer. |
51 | */ |
52 | |
53 | if ( !buf ) |
54 | set_errno_and_return_minus_one( EFAULT ); |
55 | |
56 | status = rtems_filesystem_evaluate_path( path, 0, &loc, _STAT_FOLLOW_LINKS ); |
57 | if ( status != 0 ) |
58 | return -1; |
59 | |
60 | if ( !loc.handlers->fstat_h ){ |
61 | rtems_filesystem_freenode( &loc ); |
62 | set_errno_and_return_minus_one( ENOTSUP ); |
63 | } |
64 | |
65 | /* |
66 | * Zero out the stat structure so the various support |
67 | * versions of stat don't have to. |
68 | */ |
69 | |
70 | memset( buf, 0, sizeof(struct stat) ); |
71 | |
72 | status = (*loc.handlers->fstat_h)( &loc, buf ); |
73 | |
74 | rtems_filesystem_freenode( &loc ); |
75 | |
76 | return status; |
77 | } |
78 | #endif |
79 | |
80 | /* |
81 | * _stat_r, _lstat_r |
82 | * |
83 | * This is the Newlib dependent reentrant version of stat() and lstat(). |
84 | */ |
85 | |
86 | #if defined(RTEMS_NEWLIB) |
87 | |
88 | #include <reent.h> |
89 | |
90 | int _STAT_R_NAME( |
91 | struct _reent *ptr, |
92 | const char *path, |
93 | struct stat *buf |
94 | ) |
95 | { |
96 | return _STAT_NAME( path, buf ); |
97 | } |
98 | #endif |
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