source: rtems/c/src/lib/libc/unlink.c @ d006519b

4.104.114.84.95
Last change on this file since d006519b was d006519b, checked in by Joel Sherrill <joel.sherrill@…>, on Apr 15, 1999 at 7:01:32 PM

Added reentrant versions.

  • Property mode set to 100644
File size: 1.2 KB
Line 
1/*
2 *  unlink() - POSIX 1003.1b - 5.5.1 - Remove an existing link
3 *
4 *  COPYRIGHT (c) 1989-1998.
5 *  On-Line Applications Research Corporation (OAR).
6 *  Copyright assigned to U.S. Government, 1994.
7 *
8 *  The license and distribution terms for this file may be
9 *  found in the file LICENSE in this distribution or at
10 *  http://www.OARcorp.com/rtems/license.html.
11 *
12 *  $Id$
13 */
14
15#include <errno.h>
16
17#include "libio_.h"
18
19int unlink( 
20  const char *path
21)
22{
23  rtems_filesystem_location_info_t  loc;
24  int                               result;
25
26  /*
27   * Get the node to be unlinked.
28   */
29
30  result = rtems_filesystem_evaluate_path( path, 0, &loc, FALSE );
31  if ( result != 0 )
32     return -1;
33 
34  if ( !loc.ops->node_type )
35    set_errno_and_return_minus_one( ENOTSUP );
36
37  if (  (*loc.ops->node_type)( &loc ) == RTEMS_FILESYSTEM_DIRECTORY )
38    set_errno_and_return_minus_one( EISDIR );
39 
40  if ( !loc.ops->unlink )
41    set_errno_and_return_minus_one( ENOTSUP );
42
43  return (*loc.ops->unlink)( &loc );
44}
45
46/*
47 *  _unlink_r
48 *
49 *  This is the Newlib dependent reentrant version of unlink().
50 */
51
52#if defined(RTEMS_NEWLIB)
53
54#include <reent.h>
55
56int _unlink_r(
57  struct _reent *ptr,
58  const char    *path
59)
60{
61  return unlink( path );
62}
63#endif
64
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