1 files changed, 87 insertions, 0 deletions
diff --git a/lib/libc/string/strcasecmp.c b/lib/libc/string/strcasecmp.c
new file mode 100644
index 0000000..c72a660
--- /dev/null
+++ b/lib/libc/string/strcasecmp.c
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 1987, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Copyright (c) 2011 The FreeBSD Foundation
+ * All rights reserved.
+ * Portions of this software were developed by David Chisnall
+ * under sponsorship from the FreeBSD Foundation.
+ *
+ * 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.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)strcasecmp.c	8.1 (Berkeley) 6/4/93";
+#endif /* LIBC_SCCS and not lint */
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <strings.h>
+#include <ctype.h>
+#include "xlocale_private.h"
+
+int
+strcasecmp_l(const char *s1, const char *s2, locale_t locale)
+{
+	const u_char
+			*us1 = (const u_char *)s1,
+			*us2 = (const u_char *)s2;
+	FIX_LOCALE(locale);
+
+	while (tolower_l(*us1, locale) == tolower_l(*us2++, locale))
+		if (*us1++ == '\0')
+			return (0);
+	return (tolower_l(*us1, locale) - tolower_l(*--us2, locale));
+}
+int
+strcasecmp(const char *s1, const char *s2)
+{
+	return strcasecmp_l(s1, s2, __get_locale());
+}
+
+int
+strncasecmp_l(const char *s1, const char *s2, size_t n, locale_t locale)
+{
+	FIX_LOCALE(locale);
+	if (n != 0) {
+		const u_char
+				*us1 = (const u_char *)s1,
+				*us2 = (const u_char *)s2;
+
+		do {
+			if (tolower_l(*us1, locale) != tolower_l(*us2++, locale))
+				return (tolower_l(*us1, locale) - tolower_l(*--us2, locale));
+			if (*us1++ == '\0')
+				break;
+		} while (--n != 0);
+	}
+	return (0);
+}
+
+int
+strncasecmp(const char *s1, const char *s2, size_t n)
+{
+	return strncasecmp_l(s1, s2, n, __get_locale());
+}