SNMP Manager Programmer's Guide

Reference Summary

SNMP Manager Programmer’s Guide–134249

9-25

Defines

Packet-Construction Functions

Initializing Packets

SNMP_Create_Request()

This function initializes a request packet for a Get, GetNext, or Set PDU. It dynamically

allocates memory for a packet structure of type SNMP_PKT_T, assigns to it all request

packet variables except variable bindings, and returns a pointer to the structure. To

associate variable bindings with the packet, use the functions defined later in this section

under “Functions for Binding MIB Variables.” To deallocate memory used by a request

packet you no longer need, use SNMP_Free(), described later in this section under

“Function for Releasing Packet Memory.”

Define Name Value

MAX_OID_COUNT 32

SNMP_MAX_PACKET_SIZE 1400 /* IPC maximum: 4096 */

SNMP_MIN_PACKET_SIZE 484

SNMP_REQUEST_PORT 161

SNMP_TRAP_PORT 162

SNMP_VERSION_1 0

packet = SNMP_Create_Request(pdu-type,

version,

community-length,

community-identifier,

request-id,

num-varbinds);

SNMP_PKT_T* SNMP_Create_Request(int pdu-type,

int version,

int community-length,

char *community-

identifier,

INT_32_t request-id,

int num-varbinds);