1 files changed, 86 insertions, 0 deletions
diff --git a/REORG.TODO/stdio-common/reg-printf.c b/REORG.TODO/stdio-common/reg-printf.c
new file mode 100644
index 0000000000..cbb9307795
--- /dev/null
+++ b/REORG.TODO/stdio-common/reg-printf.c
@@ -0,0 +1,86 @@
+/* Copyright (C) 1991-2017 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 Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <limits.h>
+#include <printf.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <libc-lock.h>
+
+
+/* Array of functions indexed by format character.  */
+libc_freeres_ptr (printf_arginfo_size_function **__printf_arginfo_table)
+  attribute_hidden;
+printf_function **__printf_function_table attribute_hidden;
+
+__libc_lock_define_initialized (static, lock)
+
+int __register_printf_specifier (int, printf_function,
+				 printf_arginfo_size_function);
+int __register_printf_function (int, printf_function,
+				printf_arginfo_function);
+
+
+/* Register FUNC to be called to format SPEC specifiers.  */
+int
+__register_printf_specifier (int spec, printf_function converter,
+			     printf_arginfo_size_function arginfo)
+{
+  if (spec < 0 || spec > (int) UCHAR_MAX)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  int result = 0;
+  __libc_lock_lock (lock);
+
+  if (__printf_function_table == NULL)
+    {
+      __printf_arginfo_table = (printf_arginfo_size_function **)
+	calloc (UCHAR_MAX + 1, sizeof (void *) * 2);
+      if (__printf_arginfo_table == NULL)
+	{
+	  result = -1;
+	  goto out;
+	}
+
+      __printf_function_table = (printf_function **)
+	(__printf_arginfo_table + UCHAR_MAX + 1);
+    }
+
+  __printf_function_table[spec] = converter;
+  __printf_arginfo_table[spec] = arginfo;
+
+ out:
+  __libc_lock_unlock (lock);
+
+  return result;
+}
+weak_alias (__register_printf_specifier, register_printf_specifier)
+
+
+/* Register FUNC to be called to format SPEC specifiers.  */
+int
+__register_printf_function (int spec, printf_function converter,
+			    printf_arginfo_function arginfo)
+{
+  return __register_printf_specifier (spec, converter,
+				      (printf_arginfo_size_function*) arginfo);
+}
+weak_alias (__register_printf_function, register_printf_function)