headerdata
void snmpv3_usm_discovery(int, int, struct headerdata *, struct usm *);
void snmpv3_encode(int, struct ber *, struct headerdata *,
struct headerdata *, union securityparams *);
void snmpv3_response_validate(int, int, struct headerdata *,
struct headerdata hd = {
snmpv3_get(int s, int timeout, struct headerdata *hd,
snmpv3_send(int s, int timeout, struct headerdata *hd,
snmpv3_usm_discovery(int s, int timeout, struct headerdata *hd,
struct headerdata hdd;
snmpv3_encode(int s, struct ber *ber, struct headerdata *hd,
struct headerdata *hd, union securityparams *sp)
snmpv3_response_validate(int s, int timeout, struct headerdata *hd,
int32_t snmpv3_get(int, int, struct headerdata *, union securityparams *,
int32_t snmpv3_send(int, int, struct headerdata *, union securityparams *,
int32_t snmpv3_usm_send(int, int, struct headerdata *, struct usm *, int32_t,