extern gunichar2 *mono_unicode_from_external (const gchar *in, gsize *bytes);
extern gchar *mono_utf8_from_external (const gchar *in);
extern gchar *mono_unicode_to_external (const gunichar2 *uni);
+extern gboolean mono_utf8_validate_and_len (const gchar *source, glong* oLength, const gchar** oEnd);
+extern gboolean mono_utf8_validate_and_len_with_bounds (const gchar *source, glong max_bytes, glong* oLength, const gchar** oEnd);
#endif /* _MONO_STRENC_H_ */