/// <summary>
/// Note: Since this is a struct and this function can modify the fields of the struct,
/// make sure you are calling this on a "ref" version of the struct, and if it's a member
/// of another object, make sure it IS NOT readonly.
/// </summary>
/// <param name="dnsPriorityQuery">Callback that determines priority to select an address from Dns record.
/// Use DnsPriority.(QueryName) for standard queries.</param>
public void ForceIPResolution(PriorityQuery <IPAddress> dnsPriorityQuery)
{
if (ipEndPoint == null)
{
ipEndPoint = new IPEndPoint(EndPoints.DnsResolve(ipOrHost, dnsPriorityQuery), port);
}
}
public static void Connect(this Socket socket, ref StringEndPoint endpoint, PriorityQuery <IPAddress> dnsPriorityQuery)
{
if (endpoint.ipEndPoint == null)
{
endpoint.ipEndPoint = new IPEndPoint(EndPoints.DnsResolve(endpoint.ipOrHost, dnsPriorityQuery), endpoint.port);
}
socket.Connect(endpoint.ipEndPoint);
}
public void DnsRefreshAddress()
{
IPAddress newAddress = EndPoints.DnsResolve(domainName, dnsPriorityQuery);
if (lastRefreshEndPoint == null || !lastRefreshIPAddress.Equals(newAddress))
{
//if (lastRefreshEndPoint != null)
//Console.WriteLine("[DnsEndPointDebug] Address is different old='{0}' new='{1}'", lastRefreshIPAddress, newAddress);
this.lastRefreshIPAddress = newAddress;
this.lastRefreshEndPoint = new IPEndPoint(newAddress, port);
}
}
public static Int32 Run(String programName, String[] args, UInt16 defaultPort, InterfaceMapping interfaceMapping)
{
if (args.Length < 1)
{
Usage(programName);
return(1);
}
String serverIPOrHostAndOptionalPort = args[0];
IPEndPoint serverEndPoint = EndPoints.ParseIPOrResolveHostWithOptionalPort(
serverIPOrHostAndOptionalPort, defaultPort, DnsPriority.IPv4ThenIPv6);
CommandLineClient client = new CommandLineClient(serverEndPoint, interfaceMapping);
String line;
//
// Command line mode
//
if (args.Length > 1)
{
line = args[1];
for (int i = 2; i < args.Length; i++)
{
line += " " + args[i];
}
client.ProcessLine(line);
return(0);
}
//
// Interactive Mode
//
do
{
Console.Write("->");
line = Console.ReadLine();
} while (client.ProcessLine(line));
return(0);
}
public static void Connect(this Socket socket, String host, Int32 port)
{
var ip = EndPoints.ParseIPOrResolveHost(host, DnsPriority.IPv4ThenIPv6);
socket.Connect(new IPEndPoint(ip, port));
}
static Int32 Main(String[] args)
{
Options options = new Options();
List <String> nonOptionArgs = options.Parse(args);
if (nonOptionArgs.Count == 0)
{
options.PrintUsage();
return(1);
}
String command = nonOptionArgs[0];
if (nonOptionArgs.Count < 3)
{
return(options.ErrorAndUsage("Error: Missing command line arguments"));
}
String hostString = nonOptionArgs[1];
String oidString = nonOptionArgs[2];
IPEndPoint endPoint = EndPoints.ParseIPOrResolveHostWithOptionalPort(hostString, 161, DnsPriority.IPv4ThenIPv6);
List <Byte> oidBytes = new List <Byte>();
Snmp.ParseOid(oidString, oidBytes);
Byte[] oid = oidBytes.ToArray();
if (command.Equals("get", StringComparison.CurrentCultureIgnoreCase))
{
if (nonOptionArgs.Count != 3)
{
return(options.ErrorAndUsage("Error: operation 'get' requires 2 arguments but there are {0}", nonOptionArgs.Count - 1));
}
Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
Byte[] packet = new Byte[Snmp.MaximumBufferForGet(
(UInt32)options.community.ArgValue.Length, (UInt32)oid.Length)];
UInt32 snmpContentLength = Snmp.SerializeGet(packet, 0, options.community.ArgValue, Snmp.NextID(), oid);
socket.SendTo(packet, (Int32)snmpContentLength, 0, endPoint);
}
else if (command.Equals("set", StringComparison.CurrentCultureIgnoreCase))
{
if (nonOptionArgs.Count != 5)
{
return(options.ErrorAndUsage("Error: operation 'set' requires 4 arguments but there are {0}", nonOptionArgs.Count - 1));
}
Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
Byte[] value = Asn1.ParseValue(nonOptionArgs[3], nonOptionArgs[4]);
Byte[] packet = new Byte[Snmp.MaximumBufferForSet(
(UInt32)options.community.ArgValue.Length, (UInt32)oid.Length, (UInt32)value.Length)];
UInt32 snmpContentLength = Snmp.SerializeSet(packet, 0, options.community.ArgValue, Snmp.NextID(), oid, value);
socket.SendTo(packet, (Int32)snmpContentLength, 0, endPoint);
}
else
{
Console.WriteLine("Error: Unknown operation '{0}'", command);
return(1);
}
return(0);
}
