1 files changed, 186 insertions, 0 deletions
diff --git a/nuttx/fs/nxffs/nxffs_stat.c b/nuttx/fs/nxffs/nxffs_stat.c
new file mode 100644
index 000000000..afb18093c
--- /dev/null
+++ b/nuttx/fs/nxffs/nxffs_stat.c
@@ -0,0 +1,186 @@
+/****************************************************************************
+ * fs/nxffs/nxffs_stat.c
+ *
+ *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * References: Linux/Documentation/filesystems/romfs.txt
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/stat.h>
+#include <sys/statfs.h>
+
+#include <string.h>
+#include <fcntl.h>
+#include <assert.h>
+#include <debug.h>
+
+#include <nuttx/fs/fs.h>
+#include <nuttx/mtd.h>
+
+#include "nxffs.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Variables
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nxffs_statfs
+ *
+ * Description: Return filesystem statistics
+ *
+ ****************************************************************************/
+
+int nxffs_statfs(FAR struct inode *mountpt, FAR struct statfs *buf)
+{
+  FAR struct nxffs_volume_s *volume;
+  int ret;
+
+  fvdbg("Entry\n");
+
+  /* Sanity checks */
+
+  DEBUGASSERT(mountpt && mountpt->i_private);
+
+  /* Get the mountpoint private data from the NuttX inode structure */
+
+  volume = mountpt->i_private;
+  ret = sem_wait(&volume->exclsem);
+  if (ret != OK)
+    {
+      goto errout;
+    }
+
+  /* Fill in the statfs info */
+#warning "Need f_bfree, f_bavail, f_files, f_ffree calculation"
+
+  memset(buf, 0, sizeof(struct statfs));
+  buf->f_type    = NXFFS_MAGIC;
+  buf->f_bsize   = volume->geo.blocksize;
+  buf->f_blocks  = volume->nblocks;
+  buf->f_namelen = volume->geo.blocksize - SIZEOF_NXFFS_BLOCK_HDR - SIZEOF_NXFFS_INODE_HDR;
+  ret            = OK;
+
+  sem_post(&volume->exclsem);
+errout:
+  return ret;
+}
+
+/****************************************************************************
+ * Name: nxffs_stat
+ *
+ * Description: Return information about a file or directory
+ *
+ ****************************************************************************/
+
+int nxffs_stat(FAR struct inode *mountpt, FAR const char *relpath,
+               FAR struct stat *buf)
+{
+  FAR struct nxffs_volume_s *volume;
+  struct nxffs_entry_s entry;
+  int ret;
+
+  fvdbg("Entry\n");
+
+  /* Sanity checks */
+
+  DEBUGASSERT(mountpt && mountpt->i_private && buf);
+
+  /* Get the mountpoint private data from the NuttX inode structure */
+
+  volume = mountpt->i_private;
+  ret = sem_wait(&volume->exclsem);
+  if (ret != OK)
+    {
+      goto errout;
+    }
+
+  /* Initialize the return stat instance */
+
+  memset(buf, 0, sizeof(struct stat));
+  buf->st_blksize = volume->geo.blocksize;
+  buf->st_blocks  = entry.datlen / (volume->geo.blocksize - SIZEOF_NXFFS_BLOCK_HDR);
+
+  /* The requested directory must be the volume-relative "root" directory */
+
+  if (relpath && relpath[0] != '\0')
+    {
+      /* Not the top directory.. find the NXFFS inode with this name */
+
+      ret = nxffs_findinode(volume, relpath, &entry);
+      if (ret < 0)
+        {
+          fdbg("Inode '%s' not found: %d\n", -ret);
+          goto errout_with_semaphore;
+        }
+
+      buf->st_mode    = S_IFREG|S_IXOTH|S_IXGRP|S_IXUSR;
+      buf->st_size    = entry.datlen;
+      buf->st_atime   = entry.utc;
+      buf->st_mtime   = entry.utc;
+      buf->st_ctime   = entry.utc;
+    }
+  else
+    {
+      /* It's a read/execute-only directory name */
+
+      buf->st_mode   = S_IFDIR|S_IROTH|S_IRGRP|S_IRUSR|S_IXOTH|S_IXGRP|S_IXUSR;
+    }
+
+  ret = OK;
+
+errout_with_semaphore:
+  sem_post(&volume->exclsem);
+errout:
+  return ret;
+}