1 files changed, 80 insertions, 0 deletions
diff --git a/StdLib/LibC/String/strncasecmp.c b/StdLib/LibC/String/strncasecmp.c
new file mode 100644
index 0000000000..2519df94e4
--- /dev/null
+++ b/StdLib/LibC/String/strncasecmp.c
@@ -0,0 +1,80 @@
+/** @file 
+  strncasecmp implementation
+
+  Copyright (c) 2011, Intel Corporation. All rights reserved.<BR>
+  This program and the accompanying materials are licensed and made available under
+  the terms and conditions of the BSD License that accompanies this distribution.
+  The full text of the license may be found at
+  http://opensource.org/licenses/bsd-license.php.
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+ * Copyright (c) 1987, 1993
+ *	The Regents of the University of California.  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 University 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 REGENTS 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 REGENTS 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.
+
+	$NetBSD: strncasecmp.c,v 1.2 2007/06/04 18:19:27 christos Exp $
+  strcasecmp.c	8.1 (Berkeley) 6/4/93
+**/
+
+#include <LibConfig.h>
+#include <sys/cdefs.h>
+
+#if !defined(_KERNEL) && !defined(_STANDALONE)
+#include "namespace.h"
+#include <assert.h>
+#include <ctype.h>
+#include <string.h>
+#ifdef __weak_alias
+__weak_alias(strcasecmp,_strcasecmp)
+__weak_alias(strncasecmp,_strncasecmp)
+#endif
+#else
+#include <lib/libkern/libkern.h>
+#include <machine/limits.h>
+#endif 
+
+int
+strncasecmp(const char *s1, const char *s2, size_t n)
+{
+
+	_DIAGASSERT(s1 != NULL);
+	_DIAGASSERT(s2 != NULL);
+
+	if (n != 0) {
+		const unsigned char *us1 = (const unsigned char *)s1,
+				*us2 = (const unsigned char *)s2;
+
+		do {
+			if (tolower(*us1) != tolower(*us2++))
+				return (tolower(*us1) - tolower(*--us2));
+			if (*us1++ == '\0')
+				break;
+		} while (--n != 0);
+	}
+	return (0);
+}