2009-10-08 Chris Johns <chrisj@rtems.org>

        * Makefile.am, preinstall.am: Added statvfs.h.
        * libcsupport/Makefile.am: Add statvfs.c.
        * libcsupport/include/sys/statvfs.h, libcsupport/src/statvfs.c:
        New.
        * libcsupport/include/rtems/libio.h: Add a file system handler for
        the statvfs call.
        * libfs/src/devfs/devfs_init.c, libfs/src/dosfs/msdos_init.c,
        libfs/src/imfs/imfs_init.c, libfs/src/nfsclient/src/nfs.c: Set the
        statvfs handler to NULL.
        * include/rtems/fs.h: Add a second node access field for the RFS
        file system to hold a directory offset while the existing field
        holds the inode number. This save a rescan of the directory when
        working with directories.
        * libblock/include/rtems/bdbuf.h: Added references and user fields
        to the buffer descriptor.
        * libblock/src/bdbuf.c: Added dynamic buffer support for different
        block sizes. Fixed a number of bugs.
        * libblock/src/blkdev.c: Release the disk device on an error.
        * libblock/src/diskdevs.c: Set the block size to the media block
        size during initialisation of the disk device.
        * libblock/src/flashdisk.c, libblock/src/nvdisk.c,
        libblock/src/ramdisk.c: Updated the drivers to handle variable
        block sizes.
        * libfs/src/dosfs/fat.c, libfs/src/dosfs/fat.h: Release any
        buffers when an error occurs. The FAT buffer layer hangs onto a
        single buffer while mounted. This should be fixed.
        * sapi/inline/rtems/chain.inl: Added rtems_chain_set_off_chain,
        rtems_chain_is_node_off_chain, and rtems_chain_previous.
        * score/inline/rtems/score/chain.inl: Added _Chain_Set_off_chain,
        and _Chain_Is_node_off_chain.
        * libmisc/shell/main_ln.c, libmisc/shell/main_mknod.c,
        libmisc/shell/mknod-pack_dev.c, libmisc/shell/mknod-pack_dev.h:
        New shell commands.
        * libmisc/Makefile.am, libmisc/shell/shellconfig.h: Added ln and
        mknod commands.
        * libmisc/shell/hexdump-display.c: Fixed the reopen bug which
        showed up as a free with a bad pointer.
        * libmisc/shell/main_mount.c: List the user adding file system
        when listing the available file systems to mount.
        * libmisc/shell/utils-cp.c: Remove the fixed static copy buffer
        and use a large dynamic buffer.
        * score/inline/rtems/score/address.inl, score/src/coremsgsubmit.c,
        score/src/objectallocate.c, score/src/objectfree.c: Remove
        warnings.

1 files changed, 45 insertions, 0 deletions

diff --git a/cpukit/libcsupport/include/sys/statvfs.h b/cpukit/libcsupport/include/sys/statvfs.h
new file mode 100644
index 0000000000..1ef210a702
--- /dev/null
+++ b/cpukit/libcsupport/include/sys/statvfs.h
@@ -0,0 +1,45 @@
+/*
+ *  COPYRIGHT (c) 2009 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.
+ *
+ *  $Id$
+ */
+/*
+ * The statvfs as defined by the SUS:
+ *    http://www.opengroup.org/onlinepubs/009695399/basedefs/sys/statvfs.h.html
+ */
+
+#ifndef _SYS_STATVFS_H_
+#define _SYS_STATVFS_H_
+
+#include <sys/cdefs.h>
+#include <stdint.h>
+
+typedef uint64_t fsblkcnt_t;
+typedef uint32_t fsfilcnt_t;
+
+struct statvfs
+{
+  unsigned long f_bsize;   /**< File system block size. */
+  unsigned long f_frsize;  /**< Fundamental file system block size. */
+  fsblkcnt_t    f_blocks;  /**< Total number of blocks on file system in units
+                            * of f_frsize. */
+  fsblkcnt_t    f_bfree;   /**< Total number of free blocks. */
+  fsblkcnt_t    f_bavail;  /**< Number of free blocks available to
+                            * non-privileged process. */
+  fsfilcnt_t    f_files;   /**< Total number of file serial numbers. */
+  fsfilcnt_t    f_ffree;   /**< Total number of free file serial numbers. */
+  fsfilcnt_t    f_favail;  /**< Number of file serial numbers available to
+                            * non-privileged process. */
+  unsigned long f_fsid;    /**< File system ID. */
+  unsigned long f_flag;    /**< Bit mask of f_flag values. */
+  unsigned long f_namemax; /**< Maximum filename length. */
+};
+
+int statvfs(const char *, struct statvfs *);
+int fstatvfs(int, struct statvfs *);
+
+#endif