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diff --git a/lib/libutils/isoc/newlib/strnlen.c b/lib/libutils/isoc/newlib/strnlen.c
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+/*
+ * Copyright (c) 1994-2009 Red Hat, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its
+ * contributors may be used to endorse or promote products derived from this
+ * software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+FUNCTION
+ <<strnlen>>---character string length
+
+INDEX
+ strnlen
+
+ANSI_SYNOPSIS
+ #include <string.h>
+ size_t strnlen(const char *<[str]>, size_t <[n]>);
+
+TRAD_SYNOPSIS
+ #include <string.h>
+ size_t strnlen(<[str]>, <[n]>)
+ char *<[src]>;
+ size_t <[n]>;
+
+DESCRIPTION
+ The <<strnlen>> function works out the length of the string
+ starting at <<*<[str]>>> by counting chararacters until it
+ reaches a NUL character or the maximum: <[n]> number of
+ characters have been inspected.
+
+RETURNS
+ <<strnlen>> returns the character count or <[n]>.
+
+PORTABILITY
+<<strnlen>> is a GNU extension.
+
+<<strnlen>> requires no supporting OS subroutines.
+
+*/
+
+#undef __STRICT_ANSI__
+#include "_ansi.h"
+#include <string.h>
+
+size_t
+_DEFUN (strnlen, (str, n),
+ _CONST char *str _AND
+ size_t n)
+{
+ _CONST char *start = str;
+
+ while (n-- > 0 && *str)
+ str++;
+
+ return str - start;
+}