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/**
* @file
*
* @brief Configurable Pathname Varables
* @ingroup libcsupport
*/
/*
* COPYRIGHT (c) 1989-2011.
* 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.rtems.org/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/libio_.h>
#include <rtems/seterr.h>
#include <unistd.h>
#include <errno.h>
/**
* POSIX 1003.1b - 5.7.1 - Configurable Pathname Varables
*/
long fpathconf(
int fd,
int name
)
{
long return_value;
rtems_libio_t *iop;
const rtems_filesystem_limits_and_options_t *the_limits;
LIBIO_GET_IOP( fd, iop );
/*
* 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:
errno = EINVAL;
return_value = -1;
break;
}
rtems_libio_iop_drop( iop );
return return_value;
}
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