source: rtems/c/src/lib/libc/unlink.c @ 9c49db4

4.104.114.84.95
Last change on this file since 9c49db4 was 9c49db4, checked in by Joel Sherrill <joel.sherrill@…>, on 01/08/01 at 18:26:44

2001-01-08 Ralf Corsepius <corsepiu@…>

  • configure.in: Add libc/config.h
  • libc/Makefile.am: Add INCLUDES += -I. to pickup config.h
  • libc/.cvsignore: Add config.h and stamp-h
  • libc/*.c: Add config.h support.
  • Property mode set to 100644
File size: 1.4 KB
Line 
1/*
2 *  unlink() - POSIX 1003.1b - 5.5.1 - Remove an existing link
3 *
4 *  COPYRIGHT (c) 1989-1999.
5 *  On-Line Applications Research Corporation (OAR).
6 *
7 *  The license and distribution terms for this file may be
8 *  found in the file LICENSE in this distribution or at
9 *  http://www.OARcorp.com/rtems/license.html.
10 *
11 *  $Id$
12 */
13
14#if HAVE_CONFIG_H
15#include "config.h"
16#endif
17
18#include <errno.h>
19
20#include <rtems/libio_.h>
21
22int unlink(
23  const char *path
24)
25{
26  rtems_filesystem_location_info_t  loc;
27  int                               result;
28
29  /*
30   * Get the node to be unlinked.
31   */
32
33  result = rtems_filesystem_evaluate_path( path, 0, &loc, FALSE );
34  if ( result != 0 )
35     return -1;
36 
37  if ( !loc.ops->node_type_h ) {
38    rtems_filesystem_freenode( &loc );
39    set_errno_and_return_minus_one( ENOTSUP );
40  }
41
42  if (  (*loc.ops->node_type_h)( &loc ) == RTEMS_FILESYSTEM_DIRECTORY ) {
43    rtems_filesystem_freenode( &loc );
44    set_errno_and_return_minus_one( EISDIR );
45  }
46
47  if ( !loc.ops->unlink_h ) {
48    rtems_filesystem_freenode( &loc );
49    set_errno_and_return_minus_one( ENOTSUP );
50  }
51
52  result = (*loc.ops->unlink_h)( &loc );
53
54  rtems_filesystem_freenode( &loc );
55 
56  return result;
57}
58
59/*
60 *  _unlink_r
61 *
62 *  This is the Newlib dependent reentrant version of unlink().
63 */
64
65#if defined(RTEMS_NEWLIB)
66
67#include <reent.h>
68
69int _unlink_r(
70  struct _reent *ptr,
71  const char    *path
72)
73{
74  return unlink( path );
75}
76#endif
77
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