diff options
author | Chris Johns <chrisj@rtems.org> | 2010-02-18 00:24:25 +0000 |
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committer | Chris Johns <chrisj@rtems.org> | 2010-02-18 00:24:25 +0000 |
commit | a9fa9b765df38cc5319ae734b5148fd47ebbfd8d (patch) | |
tree | 55ee28ea4a162bfb26c7a2cb6106b057beda70ae /cpukit/libfs/src/rfs/rtems-rfs-link.h | |
parent | This commit was generated by cvs2svn to compensate for changes in r22658, (diff) | |
download | rtems-a9fa9b765df38cc5319ae734b5148fd47ebbfd8d.tar.bz2 |
2010-02-18 Chris Johns <chrisj@rtems.org>
* libfs/src/rfs/rtems-rfs-bitmaps.c,
libfs/src/rfs/rtems-rfs-bitmaps.h,
libfs/src/rfs/rtems-rfs-bitmaps-ut.c,
libfs/src/rfs/rtems-rfs-block.c, libfs/src/rfs/rtems-rfs-block.h,
libfs/src/rfs/rtems-rfs-block-pos.h,
libfs/src/rfs/rtems-rfs-buffer-bdbuf.c,
libfs/src/rfs/rtems-rfs-buffer.c,
libfs/src/rfs/rtems-rfs-buffer-devio.c,
libfs/src/rfs/rtems-rfs-buffer.h, libfs/src/rfs/rtems-rfs-data.h,
libfs/src/rfs/rtems-rfs-dir.c, libfs/src/rfs/rtems-rfs-dir.h,
libfs/src/rfs/rtems-rfs-dir-hash.c,
libfs/src/rfs/rtems-rfs-dir-hash.h,
libfs/src/rfs/rtems-rfs-file.c, libfs/src/rfs/rtems-rfs-file.h,
libfs/src/rfs/rtems-rfs-file-system.c,
libfs/src/rfs/rtems-rfs-file-system-fwd.h,
libfs/src/rfs/rtems-rfs-file-system.h,
libfs/src/rfs/rtems-rfs-format.c,
libfs/src/rfs/rtems-rfs-format.h, libfs/src/rfs/rtems-rfs-group.c,
libfs/src/rfs/rtems-rfs-group.h, libfs/src/rfs/rtems-rfs.h,
libfs/src/rfs/rtems-rfs-inode.c, libfs/src/rfs/rtems-rfs-inode.h,
libfs/src/rfs/rtems-rfs-link.c, libfs/src/rfs/rtems-rfs-link.h,
libfs/src/rfs/rtems-rfs-mutex.c, libfs/src/rfs/rtems-rfs-mutex.h,
libfs/src/rfs/rtems-rfs-rtems.c,
libfs/src/rfs/rtems-rfs-rtems-dev.c,
libfs/src/rfs/rtems-rfs-rtems-dir.c,
libfs/src/rfs/rtems-rfs-rtems-file.c,
libfs/src/rfs/rtems-rfs-rtems.h,
libfs/src/rfs/rtems-rfs-rtems-utils.c,
libfs/src/rfs/rtems-rfs-shell.c, libfs/src/rfs/rtems-rfs-shell.h,
libfs/src/rfs/rtems-rfs-trace.c, libfs/src/rfs/rtems-rfs-trace.h:
New.
* Makefile.am, preinstall.am, libfs/Makefile.am,
wrapup/Makefile.am: Updated with the RFS support.
* libfs/README: Updated after 10 years.
* libblock/src/flashdisk.c, libblock/src/nvdisk.c,
libblock/src/ramdisk-driver.c: Updated to the new error reporting
in libblock.
* libmisc/shell/main_ls.c, libmisc/shell/print-ls.c: Fix printing
the size in long mode.
* libnetworking/nfs/bootp_subr.c,
libnetworking/rtems/rtems_bootp.c,
libnetworking/rtems/rtems_bsdnet_internal.h: Return the BOOTP/DHCP
to the forever behaviour of 4.9 with the ability to call BOOTP and
control the process if required.
Diffstat (limited to 'cpukit/libfs/src/rfs/rtems-rfs-link.h')
-rw-r--r-- | cpukit/libfs/src/rfs/rtems-rfs-link.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/cpukit/libfs/src/rfs/rtems-rfs-link.h b/cpukit/libfs/src/rfs/rtems-rfs-link.h new file mode 100644 index 0000000000..d80db0195c --- /dev/null +++ b/cpukit/libfs/src/rfs/rtems-rfs-link.h @@ -0,0 +1,99 @@ +/* + * COPYRIGHT (c) 2010 Chris Johns <chrisj@rtems.org> + * + * 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. + * + * $Id$ + */ +/** + * @file + * + * @ingroup rtems-rfs + * + * RTEMS File System Link Support + * + * This file provides the link support functions. + */ + +#if !defined (_RTEMS_RFS_LINK_H_) +#define _RTEMS_RFS_LINK_H_ + +#include <dirent.h> + +#include <rtems/rfs/rtems-rfs-file-system.h> +#include <rtems/rfs/rtems-rfs-inode.h> + +/** + * Create a link. + * + * @param fs The file system. + * @param name The name of the link. + * @param length The length of the name. + * @param parent The inode number of the parent directory. + * @param target The inode of the target. + * @return int The error number (errno). No error if 0. + */ +int rtems_rfs_link (rtems_rfs_file_system* fs, + const char* name, + int length, + rtems_rfs_ino parent, + rtems_rfs_ino target); + +/** + * Unlink the node from the parent directory. A directory offset for the target + * entry is required because links cause a number of inode numbers to appear in + * a single directory so scanning does not work. + * + * @param fs The file system. + * @param parent The inode number of the parent directory. + * @param target The inode of the target. + * @param doff Parent directory entry offset for the target entry. + * @param dir If true unlinking of directory nodes is allowed. + * @return int The error number (errno). No error if 0. + */ +int rtems_rfs_unlink (rtems_rfs_file_system* fs, + rtems_rfs_ino parent, + rtems_rfs_ino target, + uint32_t doff, + bool dir); + +/** + * Symbolic link is an inode that has a path attached. + * + * @param fs The file system data. + * @param name The name of the node. + * @param length The length of the name of the node. + * @param link The link path attached to the symlink inode. + * @param link_length The length of the link path. + * @param parent The parent inode number. + * @return int The error number (errno). No error if 0. + */ +int rtems_rfs_symlink (rtems_rfs_file_system* fs, + const char* name, + int length, + const char* link, + int link_length, + uid_t uid, + gid_t gid, + rtems_rfs_ino parent); + +/** + * Read a symbolic link into the provided buffer returning the link of link + * name. + * + * @param fs The file system data. + * @param link The link inode number to read. + * @param path The buffer to write the link path into. + * @param size The size of the buffer. + * @param length Set to the length of the link path. + * @return int The error number (errno). No error if 0. + */ +int rtems_rfs_symlink_read (rtems_rfs_file_system* fs, + rtems_rfs_ino link, + char* path, + size_t size, + size_t* length); + +#endif |