forked from Imagelibrary/rtems
7baa484300
* libblock/src/bdbuf.c: Update comments.
* libblock/src/bdpart.c, libblock/src/ide_part_table.c: Get the
device from the rdev field of the stat buf.
* libcsupport/include/rtems/libio.h: Add a path length to evalpath
handler. Add parent locations to rmmod and unlink handlers.
* libcsupport/include/rtems/libio_.h: Add a path length to
rtems_filesystem_evaluate_path. Add
rtems_filesystem_evaluate_relative_path, rtems_filesystem_dirname,
and rtems_filesystem_prefix_separators. Remove
rtems_filesystem_evaluate_parent.
* libcsupport/src/base_fs.c, libcsupport/src/chdir.c,
libcsupport/src/chmod.c, libcsupport/src/chown.c,
libcsupport/src/chroot.c, libcsupport/src/fchdir.c,
libcsupport/src/link.c, libcsupport/src/mount.c,
libcsupport/src/open.c, libcsupport/src/privateenv.c,
libcsupport/src/readlink.c, libcsupport/src/unmount.c,
libcsupport/src/utime.c, libcsupport/src/unmount.c,
libcsupport/src/utime.c, libfs/src/devfs/devfs.h,
libfs/src/devfs/devfs_eval.c, libfs/src/devfs/devstat.c,
libfs/src/dosfs/msdos_create.c, libfs/src/dosfs/msdos_misc.c,
libfs/src/imfs/imfs.h, libfs/src/imfs/imfs_eval.c,
libfs/src/imfs/imfs_load_tar.c, libfs/src/imfs/ioman.c,
libfs/src/pipe/pipe.c, libmisc/fsmount/fsmount.c,
libnetworking/lib/ftpfs.c: Add the length parameter to the eval
call.
* libcsupport/src/eval.c: Add rtems_filesystem_prefix_separators,
rtems_filesystem_dirname,
rtems_filesystem_evaluate_relative_path. Add the length parameter
to the eval call.
* libcsupport/src/rmdir.c: Find the parent pathloc then the node
pathloc from that node. Remove the call to find the parent given
the node pathloc.
* libcsupport/src/stat.c: Add the length parameter to the eval
call. Set the device into the rdev field.
* libcsupport/src/unlink.c: Find the parent pathloc then the node
pathloc from that node. Remove the call to find the parent given
the node pathloc.
* libfs/src/dosfs/fat.c, libfs/src/dosfs/msdos_format.c: Get the
disk device number from the stat rdev field.
* libfs/src/dosfs/msdos.h: Add the length parameter to the eval
call. Add the parent pathloc to the rmnod handler.
* libfs/src/dosfs/msdos_dir.c: Add the parent pathloc to the rmnod
handler.
* libfs/src/dosfs/msdos_eval.c: Add the length parameter to the
eval and token call.
* libfs/src/imfs/imfs_directory.c: Add the parent pathloc to the
rmnod handler.
* libfs/src/imfs/imfs_fchmod.c: Do not test the mode flags for
only the allowed flags. Add the missing flags spec'ed in the POSIX
standard.
* libfs/src/imfs/imfs_fsunmount.c, libfs/src/imfs/imfs_rmnod.c,
libfs/src/imfs/imfs_unlink.c, libfs/src/imfs/memfile.c: Add the
parent node. Currently ignored in the IMFS.
* libfs/src/imfs/imfs_stat.c: Return the device number in the rdev
field.
* libfs/src/imfs/imfs_mknod.c, libfs/src/imfs/imfs_symlink.c : Add
the length parameter to the token call.
* libfs/src/nfsclient/src/nfs.c: Add the length parameter to the
eval call and parent node to the rmnod and unlink command.
* libmisc/shell/internal.h: Remove the libc mounter decl to make
public.
* libmisc/shell/main_mount.c: Add support for hooking external
mount support for new file systems.
* libmisc/shell/shell.h: Add helper functions for the mount
command.
91 lines
2.2 KiB
C
91 lines
2.2 KiB
C
/*
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* fchdir() - compatible with SVr4, 4.4BSD and X/OPEN - Change Directory
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*
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* COPYRIGHT (c) 1989-2000.
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* On-Line Applications Research Corporation (OAR).
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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.rtems.com/license/LICENSE.
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*
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* $Id$
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*/
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#if HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <unistd.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include <rtems.h>
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#include <rtems/libio.h>
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#include <rtems/libio_.h>
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#include <rtems/seterr.h>
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int fchdir(
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int fd
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)
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{
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rtems_libio_t *iop;
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rtems_filesystem_location_info_t loc, saved;
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rtems_libio_check_fd( fd );
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iop = rtems_libio_iop( fd );
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rtems_libio_check_is_open(iop);
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/*
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* Now process the fchmod().
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*/
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rtems_libio_check_permissions( iop, LIBIO_FLAGS_READ );
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/*
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* Verify you can change directory into this node.
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*/
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if ( !iop->pathinfo.ops ) {
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rtems_set_errno_and_return_minus_one( ENOTSUP );
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}
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if ( !iop->pathinfo.ops->node_type_h ) {
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rtems_set_errno_and_return_minus_one( ENOTSUP );
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}
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if ( (*iop->pathinfo.ops->node_type_h)( &iop->pathinfo ) !=
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RTEMS_FILESYSTEM_DIRECTORY ) {
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rtems_set_errno_and_return_minus_one( ENOTDIR );
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}
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/*
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* FIXME : I feel there should be another call to
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* actually take into account the extra reference to
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* this node which we are making here. I can
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* see the freenode interface but do not see
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* allocnode node interface. It maybe node_type.
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*
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* FIXED: T.Straumann: it is evaluate_path()
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* but note the race condition. Threads who
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* share their rtems_filesystem_current better
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* be synchronized!
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*/
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saved = rtems_filesystem_current;
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rtems_filesystem_current = iop->pathinfo;
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/* clone the current node */
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if (rtems_filesystem_evaluate_path(".", 1, 0, &loc, 0)) {
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/* cloning failed; restore original and bail out */
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rtems_filesystem_current = saved;
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return -1;
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}
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/* release the old one */
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rtems_filesystem_freenode( &saved );
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rtems_filesystem_current = loc;
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return 0;
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}
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