1 files changed, 98 insertions, 0 deletions
diff --git a/nuttx/lib/lib_fclose.c b/nuttx/lib/lib_fclose.c
new file mode 100644
index 0000000000..c1cddeb691
--- /dev/null
+++ b/nuttx/lib/lib_fclose.c
@@ -0,0 +1,98 @@
+/************************************************************
+ * lib_fclose.c
+ *
+ *   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.
+ *
+ ************************************************************/
+
+/************************************************************
+ * Compilation Switches
+ ************************************************************/
+
+/************************************************************
+ * Included Files
+ ************************************************************/
+
+#include <nuttx/config.h>
+
+#if CONFIG_NFILE_STREAMS > 0
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+/************************************************************
+ * Global Functions
+ ************************************************************/
+
+int fclose(FILE *stream)
+{
+  int ret = OK;
+  if (stream)
+    {
+      if (stream->fs_filedes > 0)
+        {
+          ret = close(stream->fs_filedes);
+        }
+#warning REVIEW for race conditions
+#if CONFIG_NFILE_STREAMS > 0
+      /* Destroy the semaphore */
+      sem_destroy(&stream->fs_sem);
+
+      /* release the buffer */
+      if (stream->fs_bufstart)
+        {
+          free(stream->fs_bufstart);
+        }
+
+      /* Clear the whole structure */
+
+      memset(stream, 0, sizeof(FILE));
+#else
+#if CONFIG_NUNGET_CHARS > 0
+      /* Reset the number of ungetc characters */
+
+      stream->fs_nungotten = 0;
+#endif
+      /* Reset the flags */
+
+      stream->fs_oflags = 0;
+#endif
+      /* Setting the fs_filedescriptor to -1 makes the stream available for reuse */
+
+      stream->fs_filedes = -1;
+    }
+  return ret;
+}
+
+#endif /* CONFIG_NFILE_STREAMS */