diff options
Diffstat (limited to '')
-rw-r--r-- | c/src/lib/libc/fsync.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/c/src/lib/libc/fsync.c b/c/src/lib/libc/fsync.c new file mode 100644 index 0000000000..a5ed1e99e7 --- /dev/null +++ b/c/src/lib/libc/fsync.c @@ -0,0 +1,45 @@ +/* + * fsync() - POSIX 1003.1b 6.6.1 - Synchronize the State of a File + * + * 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 <unistd.h> + +#include "libio_.h" + +int fsync( + int fd +) +{ + rtems_libio_t *iop; + + /* + * 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 ) ) + set_errno_and_return_minus_one( EBADF ); + + /* + * Now process the fsync(). + */ + + iop = rtems_libio_iop( fd ); + rtems_libio_check_fd( fd ); + rtems_libio_check_permissions( iop, LIBIO_FLAGS_WRITE ); + + if ( !iop->handlers->fsync ) + set_errno_and_return_minus_one( ENOTSUP ); + + return (*iop->handlers->fsync)( iop ); +} |