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/**
* @file
*
* @brief Change File Modes
* @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.com/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <sys/stat.h>
#include <rtems/libio_.h>
/**
* POSIX 1003.1b 5.6.4 - Change File Modes
*/
int fchmod( int fd, mode_t mode )
{
int rv;
rtems_libio_t *iop;
rtems_libio_check_fd( fd );
iop = rtems_libio_iop( fd );
rtems_libio_check_is_open(iop);
if (iop->pathinfo.mt_entry->writeable) {
rtems_filesystem_instance_lock( &iop->pathinfo );
rv = (*iop->pathinfo.mt_entry->ops->fchmod_h)( &iop->pathinfo, mode );
rtems_filesystem_instance_unlock( &iop->pathinfo );
} else {
errno = EROFS;
rv = -1;
}
return rv;
}
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