snmp_str2asn_oid
snmp_oct2str, snmp_str2asn_oid, parse_octetstring },
snmp_oct2str, snmp_str2asn_oid, parse_octetstring },
snmp_str2asn_oid, parse_octetstring } /* keep last */
static char *snmp_str2asn_oid(char *, struct asn_oid *);