1 files changed, 150 insertions, 0 deletions
diff --git a/nuttx/fs/fs_ioctl.c b/nuttx/fs/fs_ioctl.c
new file mode 100644
index 000000000..3440bc0d0
--- /dev/null
+++ b/nuttx/fs/fs_ioctl.c
@@ -0,0 +1,150 @@
+/****************************************************************************
+ * fs/fs_ioctl.c
+ *
+ *   Copyright (C) 2007-2010, 2012 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * 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/ioctl.h>
+#include <sched.h>
+#include <errno.h>
+
+#include <net/if.h>
+
+#if defined(CONFIG_NET) && CONFIG_NSOCKET_DESCRIPTORS > 0
+# include <nuttx/net/net.h>
+#endif
+
+#include "fs_internal.h"
+
+/****************************************************************************
+ * Global Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: ioctl
+ *
+ * Description:
+ *   Perform device specific operations.
+ *
+ * Parameters:
+ *   fd       File/socket descriptor of device
+ *   req      The ioctl command
+ *   arg      The argument of the ioctl cmd
+ *
+ * Return:
+ *   >=0 on success (positive non-zero values are cmd-specific)
+ *   -1 on failure withi errno set properly:
+ *
+ *   EBADF
+ *     'fd' is not a valid descriptor.
+ *   EFAULT
+ *     'arg' references an inaccessible memory area.
+ *   EINVAL
+ *     'cmd' or 'arg' is not valid.
+ *   ENOTTY
+ *     'fd' is not associated with a character special device.
+ *   ENOTTY
+ *      The specified request does not apply to the kind of object that the
+ *      descriptor 'fd' references.
+ *
+ ****************************************************************************/
+
+int ioctl(int fd, int req, unsigned long arg)
+{
+  int err;
+#if CONFIG_NFILE_DESCRIPTORS > 0
+  FAR struct filelist *list;
+  FAR struct file     *this_file;
+  FAR struct inode    *inode;
+  int                  ret = OK;
+
+  /* Did we get a valid file descriptor? */
+
+  if ((unsigned int)fd >= CONFIG_NFILE_DESCRIPTORS)
+#endif
+    {
+      /* Perform the socket ioctl */
+
+#if defined(CONFIG_NET) && CONFIG_NSOCKET_DESCRIPTORS > 0
+      if ((unsigned int)fd < (CONFIG_NFILE_DESCRIPTORS+CONFIG_NSOCKET_DESCRIPTORS))
+        {
+          return netdev_ioctl(fd, req, arg);
+        }
+      else
+#endif
+        {
+          err = EBADF;
+          goto errout;
+        }
+    }
+
+#if CONFIG_NFILE_DESCRIPTORS > 0
+  /* Get the thread-specific file list */
+
+  list = sched_getfiles();
+  if (!list)
+    {
+      err = EMFILE;
+      goto errout;
+    }
+
+  /* Is a driver registered? Does it support the ioctl method? */
+
+  this_file = &list->fl_files[fd];
+  inode     = this_file->f_inode;
+
+  if (inode && inode->u.i_ops && inode->u.i_ops->ioctl)
+    {
+      /* Yes, then let it perform the ioctl */
+
+      ret = (int)inode->u.i_ops->ioctl(this_file, req, arg);
+      if (ret < 0)
+        {
+          err = -ret;
+          goto errout;
+        }
+    }
+
+  return ret;
+#endif
+
+errout:
+  set_errno(err);
+  return ERROR;
+}
+