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-rw-r--r--REORG.TODO/debug/memmove_chk.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/REORG.TODO/debug/memmove_chk.c b/REORG.TODO/debug/memmove_chk.c
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index 0000000000..abd21306e2
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+++ b/REORG.TODO/debug/memmove_chk.c
@@ -0,0 +1,35 @@
+/* Copy memory to memory until the specified number of bytes
+   has been copied with error checking.  Overlap is handled correctly.
+   Copyright (C) 1991-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Torbjorn Granlund (tege@sics.se).
+
+   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 <string.h>
+#include <memcopy.h>
+
+#ifndef MEMMOVE_CHK
+# define MEMMOVE_CHK __memmove_chk
+#endif
+
+void *
+MEMMOVE_CHK (void *dest, const void *src, size_t len, size_t destlen)
+{
+  if (__glibc_unlikely (destlen < len))
+    __chk_fail ();
+
+  return memmove (dest, src, len);
+}