From a4b69e0b2159ee328cb8c0c828f50fb821aefd7a Mon Sep 17 00:00:00 2001
From: pjd <pjd@FreeBSD.org>
Date: Mon, 8 Aug 2005 18:31:13 +0000
Subject: Add strcasecmp() and strncasecmp() to libkern and connect to the
 build.

---
 sys/conf/files           |  1 +
 sys/libkern/strcasecmp.c | 69 ++++++++++++++++++++++++++++++++++++++++++++++++
 sys/sys/libkern.h        |  2 ++
 3 files changed, 72 insertions(+)
 create mode 100644 sys/libkern/strcasecmp.c

diff --git a/sys/conf/files b/sys/conf/files
index acddda1..f73ccd8 100644
--- a/sys/conf/files
+++ b/sys/conf/files
@@ -1331,6 +1331,7 @@ libkern/random.c		standard
 libkern/rindex.c		standard
 libkern/scanc.c			standard
 libkern/skpc.c			standard
+libkern/strcasecmp.c		standard
 libkern/strcat.c		standard
 libkern/strcmp.c		standard
 libkern/strcpy.c		standard
diff --git a/sys/libkern/strcasecmp.c b/sys/libkern/strcasecmp.c
new file mode 100644
index 0000000..8e65827
--- /dev/null
+++ b/sys/libkern/strcasecmp.c
@@ -0,0 +1,69 @@
+/*
+ * 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/ctype.h>
+#include <sys/libkern.h>
+
+int
+strcasecmp(const char *s1, const char *s2)
+{
+	const u_char *us1 = (const u_char *)s1, *us2 = (const u_char *)s2;
+
+	while (tolower(*us1) == tolower(*us2++)) {
+		if (*us1++ == '\0')
+			return (0);
+	}
+	return (tolower(*us1) - tolower(*--us2));
+}
+
+int
+strncasecmp(const char *s1, const char *s2, size_t n)
+{
+
+	if (n != 0) {
+		const u_char *us1 = (const u_char *)s1;
+		const u_char *us2 = (const u_char *)s2;
+
+		do {
+			if (tolower(*us1) != tolower(*us2++))
+				return (tolower(*us1) - tolower(*--us2));
+			if (*us1++ == '\0')
+				break;
+		} while (--n != 0);
+	}
+	return (0);
+}
diff --git a/sys/sys/libkern.h b/sys/sys/libkern.h
index 71afd41..63c0e17 100644
--- a/sys/sys/libkern.h
+++ b/sys/sys/libkern.h
@@ -95,6 +95,7 @@ char	*rindex(const char *, int);
 int	 scanc(u_int, const u_char *, const u_char *, int);
 int	 skpc(int, int, char *);
 void	 srandom(u_long);
+int	 strcasecmp(const char *, const char *);
 char	*strcat(char * __restrict, const char * __restrict);
 int	 strcmp(const char *, const char *);
 char	*strcpy(char * __restrict, const char * __restrict);
@@ -102,6 +103,7 @@ char	*strdup(const char *__restrict, struct malloc_type *);
 size_t	 strlcat(char *, const char *, size_t);
 size_t	 strlcpy(char *, const char *, size_t);
 size_t	 strlen(const char *);
+int	 strncasecmp(const char *, const char *, size_t);
 int	 strncmp(const char *, const char *, size_t);
 char	*strncpy(char * __restrict, const char * __restrict, size_t);
 char	*strsep(char **, const char *delim);
-- 
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