From 28f540f45bbacd939bfd07f213bcad2bf730b1bf Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@gnu.org>
Date: Sat, 18 Feb 1995 01:27:10 +0000
Subject: initial import

---
 sysdeps/posix/defs.c | 76 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 sysdeps/posix/defs.c

(limited to 'sysdeps/posix/defs.c')

diff --git a/sysdeps/posix/defs.c b/sysdeps/posix/defs.c
new file mode 100644
index 0000000000..fcbaf16f69
--- /dev/null
+++ b/sysdeps/posix/defs.c
@@ -0,0 +1,76 @@
+/* Definitions of global stdio data structures.
+
+Copyright (C) 1991, 1993 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 <unistd.h>
+
+/* This file defines all the global internal variables for stdio.  */
+
+/* Standard streams.  */
+#define	READ		1, 0
+#define	WRITE		0, 1
+#define	BUFFERED	0
+#define	UNBUFFERED	1
+#define	stdstream(name, next, fd, readwrite, unbuffered)		      \
+    {									      \
+      _IOMAGIC,								      \
+      NULL, NULL, NULL, NULL, 0,					      \
+      (PTR) fd,								      \
+      { readwrite, /* ... */ },						      \
+      { NULL, NULL, NULL, NULL, NULL },					      \
+      { NULL, NULL },							      \
+      -1, -1,								      \
+      (next),								      \
+      NULL, '\0', 0,							      \
+      0, 0, unbuffered, 0, 0, 0, 0					      \
+    }
+static FILE stdstreams[3] =
+  {
+    stdstream (&stdstreams[0], &stdstreams[1], STDIN_FILENO, READ, BUFFERED),
+    stdstream (&stdstreams[1], &stdstreams[2], STDOUT_FILENO, WRITE, BUFFERED),
+    stdstream (&stdstreams[2], NULL, STDERR_FILENO, WRITE, UNBUFFERED),
+  };
+FILE *stdin = &stdstreams[0];
+FILE *stdout = &stdstreams[1];
+FILE *stderr = &stdstreams[2];
+
+/* Pointer to the first stream in the list.  */
+FILE *__stdio_head = &stdstreams[0];
+
+/* This function MUST be in this file!
+   This is because we want _cleanup to go into the __libc_atexit set
+   when any stdio code is used (and to use any stdio code, one must reference
+   something defined in this file), and since only local symbols can be made
+   set elements, having the set element stab entry here and _cleanup elsewhere
+   loses; and having them both elsewhere loses because there is no reference
+   to cause _cleanup to be linked in.  */
+
+void
+DEFUN_VOID(_cleanup)
+{
+  (void) fclose((FILE *) NULL);
+}
+
+
+#ifdef	HAVE_GNU_LD
+text_set_element(__libc_atexit, _cleanup);
+#endif
-- 
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