+typedef struct odr_constack
+{
+ const unsigned char *base; /* starting point of data */
+ int base_offset;
+ int len; /* length of data, if known, else -1
+ (decoding only) */
+ const unsigned char *lenb; /* where to encode length */
+ int len_offset;
+ int lenlen; /* length of length-field */
+} odr_constack;
+