library/stat_fstat.c
/*
* $Id: stat_fstat.c,v 1.10 2006-01-08 12:04:24 obarthel Exp $
*
* :ts=4
*
* Portable ISO 'C' (1994) runtime library for the Amiga computer
* Copyright (c) 2002-2015 by Olaf Barthel <obarthel (at) gmx.net>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Neither the name of Olaf Barthel nor the names of contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _STDLIB_NULL_POINTER_CHECK_H
#include "stdlib_null_pointer_check.h"
#endif /* _STDLIB_NULL_POINTER_CHECK_H */
/****************************************************************************/
#ifndef _STAT_HEADERS_H
#include "stat_headers.h"
#endif /* _STAT_HEADERS_H */
/****************************************************************************/
/* The following is not part of the ISO 'C' (1994) standard. */
/****************************************************************************/
int
fstat(int file_descriptor, struct stat * buffer)
{
struct file_action_message fam;
D_S(struct FileInfoBlock,fib);
struct fd * fd = NULL;
int result = ERROR;
ENTER();
SHOWVALUE(file_descriptor);
SHOWPOINTER(buffer);
assert( buffer != NULL );
if(__check_abort_enabled)
__check_abort();
__stdio_lock();
#if defined(CHECK_FOR_NULL_POINTERS)
{
if(buffer == NULL)
{
SHOWMSG("invalid buffer parameter");
__set_errno(EFAULT);
goto out;
}
}
#endif /* CHECK_FOR_NULL_POINTERS */
assert( file_descriptor >= 0 && file_descriptor < __num_fd );
assert( __fd[file_descriptor] != NULL );
assert( FLAG_IS_SET(__fd[file_descriptor]->fd_Flags,FDF_IN_USE) );
fd = __get_file_descriptor(file_descriptor);
if(fd == NULL)
{
__set_errno(EBADF);
goto out;
}
__fd_lock(fd);
SHOWMSG("calling the hook");
fam.fam_Action = file_action_examine;
fam.fam_FileInfo = fib;
fam.fam_FileSystem = NULL;
assert( fd->fd_Action != NULL );
if((*fd->fd_Action)(fd,&fam) < 0)
{
__set_errno(fam.fam_Error);
goto out;
}
__convert_file_info_to_stat(fam.fam_FileSystem,fib,buffer);
result = OK;
out:
__fd_unlock(fd);
__stdio_unlock();
RETURN(result);
return(result);
}