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/*

 *  fpathconf() - POSIX 1003.1b - 5.7.1 - Configurable Pathname Varables

 *

 *  COPYRIGHT (c) 1989-1999.

 *  On-Line Applications Research Corporation (OAR).

 *

 *  The license and distribution terms for this file may be

 *  found in the file LICENSE in this distribution or at

 *  http://www.OARcorp.com/rtems/license.html.

 *

 *  fpathconf.c,v 1.8 2002/01/04 18:29:36 joel Exp

 */

#if HAVE_CONFIG_H

#include "config.h"

#endif

#include <rtems/libio_.h>

#include <rtems/seterr.h>

#include <unistd.h>

#include <errno.h>

long fpathconf(

  int   fd,

  int   name

)

{

  long                                    return_value;

  rtems_libio_t                          *iop;

  rtems_filesystem_limits_and_options_t  *the_limits;

  rtems_libio_check_fd(fd);

  iop = rtems_libio_iop(fd);

  rtems_libio_check_is_open(iop);

  rtems_libio_check_permissions(iop, LIBIO_FLAGS_READ);

  /*

   *  Now process the information request.

   */

  the_limits = &iop->pathinfo.mt_entry->pathconf_limits_and_options;

  switch ( name ) {

    case _PC_LINK_MAX:

      return_value = the_limits->link_max;

      break;

    case _PC_MAX_CANON:

      return_value = the_limits->max_canon;

      break;

    case _PC_MAX_INPUT:

      return_value = the_limits->max_input;

      break;

    case _PC_NAME_MAX:

      return_value = the_limits->name_max;

      break;

    case _PC_PATH_MAX:

      return_value = the_limits->path_max;

      break;

    case _PC_PIPE_BUF:

      return_value = the_limits->pipe_buf;

      break;

    case _PC_CHOWN_RESTRICTED:

      return_value = the_limits->posix_chown_restrictions;

      break;

    case _PC_NO_TRUNC:

      return_value = the_limits->posix_no_trunc;

      break;

    case _PC_VDISABLE:

      return_value = the_limits->posix_vdisable;

      break;

    case _PC_ASYNC_IO:

      return_value = the_limits->posix_async_io;

      break;

    case _PC_PRIO_IO:

      return_value = the_limits->posix_prio_io;

      break;

    case _PC_SYNC_IO:

      return_value = the_limits->posix_sync_io;

      break;

    default:

      rtems_set_errno_and_return_minus_one( EINVAL );

      break;

  }

  return return_value;

}