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

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Line No. Rev Author Line
1 30 unneback
/*
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 *  getdents() - Get Directory Entries
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 *
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 *  SVR4 and SVID extension required by Newlib readdir() family.
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 *
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 *  This routine will dd_len / (sizeof dirent) directory entries relative to
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 *  the current directory position index. These entries will be placed in
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 *  character array pointed to by -dd_buf-
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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: getdents.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 getdents(
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  int   dd_fd,
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  char *dd_buf,
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  int   dd_len
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)
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{
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  rtems_libio_t                    *iop;
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  rtems_filesystem_location_info_t  loc;
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  /*
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   *  Get the file control block structure associated with the file descriptor
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   */
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  iop = rtems_libio_iop( dd_fd );
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  /*
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   *  Make sure we are working on a directory
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   */
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  loc = iop->pathinfo;
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  if ( !loc.ops->node_type )
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    set_errno_and_return_minus_one( ENOTSUP );
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  if ( (*loc.ops->node_type)( &loc ) != RTEMS_FILESYSTEM_DIRECTORY )
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    set_errno_and_return_minus_one( ENOTDIR );
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  /*
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   *  Return the number of bytes that were actually transfered as a result
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   *  of the read attempt.
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   */
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  if ( !iop->handlers->read )
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    set_errno_and_return_minus_one( ENOTSUP );
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  return (*iop->handlers->read)( iop, dd_buf, dd_len  );
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}

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