Added opendir, readdir, closedir, etc.

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@62 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 112 insertions, 0 deletions

diff --git a/nuttx/include/dirent.h b/nuttx/include/dirent.h
new file mode 100644
index 000000000..160dd04ea
--- /dev/null
+++ b/nuttx/include/dirent.h
@@ -0,0 +1,112 @@
+/************************************************************
+ * dirent.h
+ *
+ *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * 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 Gregory Nutt 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.
+ *
+ ************************************************************/
+
+#ifndef __DIRENT_H
+#define __DIRENT_H
+
+/************************************************************
+ * Included Files
+ ************************************************************/
+
+#include <nuttx/config.h>
+#include <sys/types.h>
+#include <limits.h>
+
+/************************************************************
+ * Definitions
+ ************************************************************/
+
+/* File type code for the d_type field in dirent struct.
+ * Note that because of the simplified filesystem organization
+ * of NuttX, an inode can be BOTH a file and a directory
+ */
+
+#define DTYPE_FILE      0x01
+#define DTYPE_DIRECTORY 0x02
+
+#define DIRENT_ISFILE(dtype)      (((dtype) & DTYPE_FILE) != )
+#define DIRENT_ISDIRECTORY(dtype) (((dtype) & DTYPE_DIRECTORY) != )
+
+/************************************************************
+ * Public Type Definitions
+ ************************************************************/
+
+/* The POSIX specification requires that the caller of readdir_r
+ * provide storage "large enough for a dirent with the d_name
+ * member and an array of char containing at least {NAME_MAX}
+ * plus one elements.
+ */
+
+struct dirent
+{
+  ubyte     d_type;             /* type of file */
+  char      d_name[NAME_MAX+1]; /* filename */
+};
+
+typedef void DIR;
+
+/************************************************************
+ * Public Variables
+ ************************************************************/
+
+/************************************************************
+ * Public Function Prototypes
+ ************************************************************/
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C" {
+#else
+#define EXTERN extern
+#endif
+
+/* POSIX-like File System Interfaces */
+
+EXTERN int        closedir(DIR *dirp);
+EXTERN FAR DIR   *opendir(const char *path);
+EXTERN FAR struct dirent *readdir(FAR DIR *dirp);
+EXTERN int        readdir_r(FAR DIR *dirp, FAR struct dirent *entry,
+                            FAR struct dirent **result);
+EXTERN void       rewinddir(FAR DIR *dirp);
+EXTERN void       seekdir(FAR DIR *dirp, int loc);
+EXTERN int        telldir(FAR DIR *dirp);
+
+#undef EXTERN
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* __DIRENT_H */