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/*
* fstat() - POSIX 1003.1b 5.6.2 - Get File Status
*
* COPYRIGHT (c) 1989-1998.
* On-Line Applications Research Corporation (OAR).
* Copyright assigned to U.S. Government, 1994.
*
* 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.
*
* $Id$
*/
#include <sys/stat.h>
#include <unistd.h>
#include <string.h>
#include "libio_.h"
int fstat(
int fd,
struct stat *sbuf
)
{
rtems_libio_t *iop;
/*
* Check to see if we were passed a valid pointer.
*/
if ( !sbuf )
set_errno_and_return_minus_one( EFAULT );
/*
* Zero out the stat structure so the various support
* versions of stat don't have to.
*/
memset( sbuf, 0, sizeof(struct stat) );
/*
* If this file descriptor is mapped to an external set of handlers,
* then pass the request on to them.
*/
if (rtems_file_descriptor_type(fd)) {
switch (rtems_file_descriptor_type (fd)) {
case RTEMS_FILE_DESCRIPTOR_TYPE_FILE:
break;
case RTEMS_FILE_DESCRIPTOR_TYPE_SOCKET:
#if !defined(__GO32__)
sbuf->st_mode = S_IFSOCK;
break;
#endif
default:
set_errno_and_return_minus_one( EBADF );
}
}
/*
* Now process the stat() request.
*/
iop = rtems_libio_iop( fd );
rtems_libio_check_fd( fd );
if ( !iop->handlers->fstat )
set_errno_and_return_minus_one( ENOTSUP );
return (*iop->handlers->fstat)( &iop->pathinfo, sbuf );
}
/*
* _fstat_r
*
* This is the Newlib dependent reentrant version of fstat().
*/
#if defined(RTEMS_NEWLIB)
#include <reent.h>
int _fstat_r(
struct _reent *ptr,
int fd,
struct stat *buf
)
{
return fstat( fd, buf );
}
#endif
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