forked from Imagelibrary/rtems
73f6236bc0
IO handlers scheme that was implemented originally just to support sockets. The file system IO switch is more general and works fine.
77 lines
1.4 KiB
C
77 lines
1.4 KiB
C
/*
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* fstat() - POSIX 1003.1b 5.6.2 - Get File Status
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*
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* COPYRIGHT (c) 1989-1998.
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* On-Line Applications Research Corporation (OAR).
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* Copyright assigned to U.S. Government, 1994.
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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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* $Id$
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*/
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#include <sys/stat.h>
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#include <unistd.h>
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#include <string.h>
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#include "libio_.h"
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int fstat(
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int fd,
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struct stat *sbuf
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)
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{
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rtems_libio_t *iop;
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/*
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* Check to see if we were passed a valid pointer.
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*/
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if ( !sbuf )
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set_errno_and_return_minus_one( EFAULT );
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/*
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* Now process the stat() request.
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*/
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iop = rtems_libio_iop( fd );
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rtems_libio_check_fd( fd );
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rtems_libio_check_is_open(iop);
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if ( !iop->handlers )
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set_errno_and_return_minus_one( EBADF );
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if ( !iop->handlers->fstat )
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set_errno_and_return_minus_one( ENOTSUP );
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/*
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* Zero out the stat structure so the various support
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* versions of stat don't have to.
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*/
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memset( sbuf, 0, sizeof(struct stat) );
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return (*iop->handlers->fstat)( &iop->pathinfo, sbuf );
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}
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/*
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* _fstat_r
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*
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* This is the Newlib dependent reentrant version of fstat().
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*/
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#if defined(RTEMS_NEWLIB)
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#include <reent.h>
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int _fstat_r(
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struct _reent *ptr,
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int fd,
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struct stat *buf
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)
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{
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return fstat( fd, buf );
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}
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#endif
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