/// <summary>
/// Initializes a new instance of the <see cref="SnmpDatagram"/> class.
/// Copy construtor
/// </summary>
/// <param name="snmpPacket">The SNMP packet.</param>
public SnmpDatagram(SnmpDatagram snmpPacket)
{
Header = snmpPacket.Header;
PDU = snmpPacket.PDU;
}
/// <summary>
/// Initializes a new instance of the <see cref="SnmpDatagram"/> class.
/// </summary>
/// <param name="pduType">Type of the pdu.</param>
/// <param name="snmpVersion">The SNMP version.</param>
/// <param name="community">The community.</param>
/// <param name="requestId">The request identifier.</param>
/// <param name="errorStatus">The error status.</param>
/// <param name="errorIndex">Index of the error.</param>
/// <param name="varBinds">The variable binds.</param>
public SnmpDatagram(PduType pduType, SnmpVersion snmpVersion, string community, int requestId, SnmpErrorStatus errorStatus, int errorIndex, VarBind[] varBinds)
{
Header = new SnmpHeader(snmpVersion, community);
PDU = new SnmpPDU(pduType, requestId, errorStatus, errorIndex, varBinds);
}
/// <summary>
/// Initializes a new instance of the <see cref="SnmpDatagram"/> class.
/// </summary>
/// <param name="snmpHeader">The SNMP header.</param>
/// <param name="snmpPDU">The SNMP pdu.</param>
public SnmpDatagram(SnmpHeader snmpHeader, SnmpPDU snmpPDU)
{
Header = snmpHeader;
PDU = snmpPDU;
}
public string get(string ip, string community, string oid, int timeout, int retry)
{
IPAddress ipaddr = IPAddress.Parse(ip);
SnmpAPI api = new SnmpAPI();
api.Debug = false;
SnmpSession session = new SnmpSession(api);
try
{
session.Open();
}
catch (SnmpException e)
{
error = "Error opening socket: " + e;
return "false";
}
SnmpPDU pdu = new SnmpPDU();
UDPProtocolOptions option = new UDPProtocolOptions(ipaddr, 161);
pdu.ProtocolOptions = option;
pdu.Community = community;
pdu.Timeout = timeout;
pdu.Retries = retry;
pdu.Command = SnmpAPI.GET_REQ_MSG;
SnmpOID send_oid = new SnmpOID(oid);
pdu.AddNull(send_oid);
SnmpPDU result = null;
try
{
result = session.SyncSend(pdu);
}
catch (SnmpException e)
{
error = "Error sending SNMP request: " + e;
return "false";
}
if (result == null)
{
error = "Request timed out!";
return "false";
}
else
{
if (result.Errstat == 0)
{
session.Close();
api.Close();
return result.GetVariable(0).ToString();
}
else
{
session.Close();
api.Close();
error = result.Error;
return "false";
}
}
}
