Added strcasecmp(3), strncasecmp(3) and <strings.h>.

Why <strings.h>? Stupid POSIX.

libmaxsi/include/strings.h

@@ -0,0 +1,40 @@
+/******************************************************************************
+
+	COPYRIGHT(C) JONAS 'SORTIE' TERMANSEN 2011.
+
+	This file is part of LibMaxsi.
+
+	LibMaxsi 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 3 of the License, or (at your option)
+	any later version.
+
+	LibMaxsi 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 LibMaxsi. If not, see <http://www.gnu.org/licenses/>.
+
+	strings.h
+	String operations.
+
+******************************************************************************/
+
+#ifndef	_STRINGS_H
+#define	_STRINGS_H 1
+
+#include <features.h>
+
+__BEGIN_DECLS
+
+@include(size_t.h)
+@include(locale_t.h)
+
+int strcasecmp(const char* a, const char* b);
+int strncasecmp(const char* a, const char* b, size_t n);
+
+__END_DECLS
+
+#endif

libmaxsi/string.cpp

@@ -27,6 +27,7 @@
 #include <libmaxsi/memory.h>
 #include <stdlib.h>
 #include <string.h>
+#include <ctype.h>
 
 namespace Maxsi
 {
@@ -121,6 +122,38 @@ namespace Maxsi
 			return 0;
 		}
 
+#ifndef SORTIX_KERNEL
+		inline int charcasecmp(char a, char b)
+		{
+			return tolower(a) == tolower(b);
+		}
+
+		extern "C" int strcasecmp(const char* a, const char* b)
+		{
+			while ( true )
+			{
+				char achar = *a++;
+				char bchar = *b++;
+				if ( !achar && !bchar ) { return 0; }
+				int cmp = charcasecmp(achar, bchar);
+				if ( cmp ) { return cmp; }
+			}
+		}
+
+		extern "C" int strncasecmp(const char* a, const char* b, size_t n)
+		{
+			while ( n-- )
+			{
+				char achar = *a++;
+				char bchar = *b++;
+				if ( !achar && !bchar ) { return 0; }
+				int cmp = charcasecmp(achar, bchar);
+				if ( cmp ) { return cmp; }
+			}
+			return 0;
+		}
+#endif
+
 		DUAL_FUNCTION(size_t, strspn, Accept, (const char* str, const char* accept))
 		{
 			size_t acceptlen = 0;