initial import

1 files changed, 69 insertions, 0 deletions

diff --git a/stdio/fclose.c b/stdio/fclose.c
new file mode 100644
index 0000000..becb858
--- /dev/null
+++ b/stdio/fclose.c
@@ -0,0 +1,69 @@
+/* Copyright (C) 1991 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+
+/* Close a stream.  */
+int
+DEFUN(fclose, (stream), register FILE *stream)
+{
+  int status;
+
+  if (stream == NULL)
+    {
+      /* Close all streams.  */
+      register FILE *f;
+      for (f = __stdio_head; f != NULL; f = f->__next)
+	if (__validfp(f))
+	  (void) fclose(f);
+      return 0;
+    }
+
+  if (!__validfp(stream))
+    {
+      errno = EINVAL;
+      return EOF;
+    }
+	
+  if (stream->__mode.__write &&
+      /* Flush the buffer.  */
+      __flshfp (stream, EOF) == EOF)
+    return EOF;
+
+  /* Free the buffer's storage.  */
+  if (stream->__buffer != NULL && !stream->__userbuf)
+    free(stream->__buffer);
+
+  /* Close the system file descriptor.  */
+  if (stream->__io_funcs.__close != NULL)
+    status = (*stream->__io_funcs.__close)(stream->__cookie);
+  else if (!stream->__seen && stream->__cookie != NULL)
+    status = __stdio_close(stream->__cookie);
+  else
+    status = 0;
+
+  /* Nuke the stream, making it available for re-use.  */
+  __invalidate(stream);
+
+  return status < 0 ? EOF : 0;
+}