Add function cw_stricmp

FossilOrigin-Name: b11dc8075a7ca248bff1e0afa5277b70ae7703d85bc0b16b717e5b6e6fc04e45

src/cw/cw.h

@@ -502,6 +502,7 @@ int cw_put_msg(struct conn *conn, uint8_t * rawout);
 
 
 char *cw_strdup(const char *s);
+int cw_strcicmp(char const *a, char const *b);
 
 
 /**

src/cw/cw_stricmp.c

@@ -0,0 +1,12 @@
+#include <ctype.h>
+
+#include "cw.h"
+
+int cw_strcicmp(char const *a, char const *b)
+{
+    for (;; a++, b++) {
+        int d = tolower(*a) - tolower(*b);
+        if (d != 0 || !*a)
+            return d;
+    }
+}