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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libc/] [unlink.c] - Blame information for rev 596

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Line No. Rev Author Line
1 30 unneback
/*
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 *  unlink() - POSIX 1003.1b - 5.5.1 - Remove an existing link
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 *
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 *  COPYRIGHT (c) 1989-1999.
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 *  On-Line Applications Research Corporation (OAR).
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 *
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 *  The license and distribution terms for this file may be
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 *  found in the file LICENSE in this distribution or at
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 *  http://www.OARcorp.com/rtems/license.html.
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 *
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 *  $Id: unlink.c,v 1.2 2001-09-27 12:01:15 chris Exp $
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 */
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#include <errno.h>
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#include "libio_.h"
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int unlink(
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  const char *path
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)
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{
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  rtems_filesystem_location_info_t  loc;
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  int                               result;
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  /*
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   * Get the node to be unlinked.
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   */
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  result = rtems_filesystem_evaluate_path( path, 0, &loc, FALSE );
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  if ( result != 0 )
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     return -1;
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  if ( !loc.ops->node_type ) {
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    rtems_filesystem_freenode( &loc );
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    set_errno_and_return_minus_one( ENOTSUP );
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  }
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  if (  (*loc.ops->node_type)( &loc ) == RTEMS_FILESYSTEM_DIRECTORY ) {
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    rtems_filesystem_freenode( &loc );
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    set_errno_and_return_minus_one( EISDIR );
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  }
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  if ( !loc.ops->unlink ) {
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    rtems_filesystem_freenode( &loc );
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    set_errno_and_return_minus_one( ENOTSUP );
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  }
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  result = (*loc.ops->unlink)( &loc );
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  rtems_filesystem_freenode( &loc );
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  return result;
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}
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/*
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 *  _unlink_r
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 *
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 *  This is the Newlib dependent reentrant version of unlink().
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 */
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#if defined(RTEMS_NEWLIB)
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#include <reent.h>
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int _unlink_r(
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  struct _reent *ptr,
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  const char    *path
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)
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{
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  return unlink( path );
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}
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#endif
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