SnmpMgrRequest info Overview Group

The SnmpMgrRequest function requests the specified operation be performed with the specified agent.

SNMPAPI SnmpMgrRequest(

LPSNMP_MGR_SESSION session,	// SNMP session pointer
BYTE requestType,	// Get, GetNext, or Set
RFC1157VarBindList *variableBindings,	// variable bindings
AsnInteger *errorStatus,	// result error status
AsnInteger *errorIndex	// result error index
);

Parameters

session

[in] Points to an internal structure that specifies the session that will perform the request.

requestType

[in] Specifies the SNMP request type. This parameter can be one of the following values:

Value	Meaning
ASN_RFC1157_GETREQUEST	Search and receive a value from a specified variable.
ASN_RFC1157_GETNEXTREQUEST	Search and receive a value from a variable without knowing the name of the variable.
ASN_RFC1157_SETREQUEST	Store a value within a specific variable.

variableBindings

[in/out] Points to the variable bindings list.

errorStatus

[out] Points to a variable in which the error status result will be returned. This parameter can be one of the following values:

Value	Meaning
SNMP_ERRORSTATUS_NOERROR	The agent reports that no errors occurred during transmission.
SNMP_ERRORSTATUS_TOOBIG	The agent could not place the results of the requested operation into a single SNMP message.
SNMP_ERRORSTATUS_NOSUCHNAME	The requested operation identified an unknown variable.
SNMP_ERRORSTATUS_BADVALUE	The requested operation tried to change a variable but it specified either a syntax or value error.
SNMP_ERRORSTATUS_READONLY	The requested operation tried to change a variable that was not allowed to change according to the community profile of the variable.
SNMP_ERRORSTATUS_GENERR	An error other than one of those listed here occurred during the requested operation.

errorIndex

[out] Points to a variable in which the error index result will be returned.

Return Values

If the function succeeds, the return value is nonzero.

If the function fails, the return value is NULL. To get extended error information, call GetLastError. GetLastError may return one of the following error codes:

Error Code	Meaning
SNMP_MGMTAPI_TIMEOUT	The request timed-out
SNMP_MGMTAPI_SELECT_FDERRORS	Unexpected error file descriptors indicated by the Windows Sockets select function

Remarks

Retries and time-outs are supplied to the SnmpMgrOpen function. Each variable in the variable bindings list must be initialized to type ASN_NULL for Get and Get Next requests.

For more information, see RFC 1157.

SnmpMgrRequest info Overview Group

Parameters

Return Values

Remarks

See Also