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-rw-r--r--debug/wcscpy_chk.c61
1 files changed, 61 insertions, 0 deletions
diff --git a/debug/wcscpy_chk.c b/debug/wcscpy_chk.c
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+++ b/debug/wcscpy_chk.c
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+/* Copyright (C) 1995, 1996, 1997, 2003, 2005 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
+
+ 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <stddef.h>
+#include <wchar.h>
+
+
+/* Copy SRC to DEST. */
+wchar_t *
+__wcscpy_chk (wchar_t *dest, const wchar_t *src, size_t n)
+{
+ wint_t c;
+ wchar_t *wcp;
+
+ if (__alignof__ (wchar_t) >= sizeof (wchar_t))
+ {
+ const ptrdiff_t off = dest - src - 1;
+
+ wcp = (wchar_t *) src;
+
+ do
+ {
+ if (__builtin_expect (n-- == 0, 0))
+ __chk_fail ();
+ c = *wcp++;
+ wcp[off] = c;
+ }
+ while (c != L'\0');
+ }
+ else
+ {
+ wcp = dest;
+
+ do
+ {
+ if (__builtin_expect (n-- == 0, 0))
+ __chk_fail ();
+ c = *src++;
+ *wcp++ = c;
+ }
+ while (c != L'\0');
+ }
+
+ return dest;
+}