+ Z_External *r = (Z_External *) npr->u.databaseRecord;
+
+ if (r->which == Z_External_sutrs)
+ {
+ *len = r->u.sutrs->len;
+ return r->u.sutrs->buf;
+ }
+ else if (r->which == Z_External_octet)
+ {
+ *len = r->u.octet_aligned->len;
+ return r->u.octet_aligned->buf;
+ }
+ else /* grs-1, explain, ... */
+ {
+ *len = -1;
+ return (Z_External *) npr->u.databaseRecord;
+ }