@@ -34,6 +34,14 @@

 #define  translate_pointer( _new_buf , _org_buf , _p) \

 	( (_p)?(_new_buf + (_p-_org_buf)):(0) )

+#define via_len(_via) \

+	((_via)->bsize-((_via)->name.s-\

+		((_via)->hdr.s+(_via)->hdr.len)))

+

+#define via_s(_via,_p_msg) \

+	translate_pointer((_p_msg)->orig,(_p_msg)->buf,(_via)->name.s)

+

+

 /* converts a str to an u. short, returns the u. short and sets *err on