Get Routine - Compaq TCP/IP Services for OpenVMS Programming And Reference Manual

eSNMP API Routines

*_get Routine

*_get Routine
The *_get routine is a method routine for the specified MIB item, which is
typically a MIB group (for example,
example,
Format
int mib-group_get ( METHOD *method ) ;
Arguments
method
A pointer to a METHOD structure that contains the following fields:
Field Name
action
serial_num
repeat_cnt
max_repetitions
varbind
5–20 eSNMP API Routines
in MIB II).
ifEntry
system in MIB II) or a table entry (for
Description
One of ESNMP_ACT_GET, ESNMP_ACT_
GETNEXT, or ESNMP_ACT_GETBULK.
An integer number that is unique to this SNMP
request. Each method routine called while
servicing a single SNMP request receives the
same value of serial_num. New SNMP requests
are indicated by a new value of serial_num.
Used for GetBulk only. This value indicates
the current iteration number of a repeating
VARBIND. This number increments from 1 to
max_repetitions and is 0 (zero) for nonrepeating
VARBIND structures.
The maximum number of repetitions to
perform. Used for
GetBulk
(zero) for nonrepeating VARBIND structures.
You can optimize subsequent processing by
knowing the maximum number repeat calls will
be made.
A pointer to the VARBIND structure for
which you must fill in the OID and data
fields. Upon entry of the method routine,
the method->varbind->name field is the OID
that was requested.
Upon exit of the method routine, the
method->varbind field contains the requested
data, and the method->varbind->name field is
updated to reflect the actual instance OID for
the returned VARBIND structure.
The support routines ( o_integer
, and ) are generally used
o_oid o_octet
to load data. The libsnmp
routine is used to update the OID in the
method->varbind->name field.
only. This will be 0
, o_string ,
instance2oid