--- a/string.c	Tue Dec 20 00:50:16 2005 +0000
+++ b/string.c	Tue Dec 20 20:52:05 2005 +0000
@@ -57,3 +57,9 @@
 	if (p != NULL) memcpy(p, buf, len + 1);
 	return p;
 }
+
+void str_validate(char *str)
+{
+	for (; *str != '\0'; str++)
+		if (!IsValidAsciiChar(*str)) *str = '?';
+}