@@ -121,3 +121,29 @@
 	dest[i] = 0;
 	return i;
 }
+
+/**
+ * Compares two strings in a case-sensitive manner.
+ *
+ * @param str1 String to be compared
+ * @param str2 String to be compared
+ *
+ * @return 0 if both strings are equal,
+ *   <0 if upper(str1) < upper(str2),
+ *   >0 if upper(str1) > upper(str2)
+ */
+int sstrcmp(const char *str1, const char *str2) {
+    int i = 0;
+
+    while (1) {
+        if (TO_UPPER(str1[i]) != TO_UPPER(str2[i])) {
+            return TO_UPPER(str1[i]) - TO_UPPER(str2[i]);
+        }
+
+        if (str1[i] == 0) {
+            return 0;
+        }
+
+        i++;
+    }
+}

@@ -9,6 +9,10 @@
 #define NULL ((void*)0)
 
 #define WHITESPACE(c) ((c) == ' ' || (c) == '\t')
+#define IS_UPPER(c) ((c) >= 'A' && (c) <= 'Z')
+#define IS_LOWER(c) ((c) >= 'a' && (c) <= 'z')
+#define TO_UPPER(c) (IS_LOWER(c) ? (c) - 'a' + 'A' : c)
+#define TO_LOWER(c) (IS_UPPER(c) ? (c) - 'A' + 'a' : c)
 
 /*!
  * Unsigned integral type.
@@ -34,10 +38,11 @@ * \return \p ptr is returned.
  */
 void *memset (void *ptr, int value, size_t num);
 
-unsigned int strlen (const char *str);
-char *strcpy(char *destination, const char *source);
-int strcmp(const char *str1, const char *str2);
-const char * strchr ( const char * str, int character );
+unsigned int strlen(const char *);
+char *strcpy(char *, const char *);
+int strcmp(const char *, const char *);
+int sstrcmp(const char *, const char *);
+const char *strchr (const char *, int);
 size_t strlstrip(char *, const char *, size_t);
 size_t strrstrip(char *, const char *, size_t);