static int Main(string[] args)
{
try
{
string localFilename = null;
string remoteFilename = null;
bool isGet = false;
bool isPut = false;
bool ipv6 = false;
int serverPort = 69;
bool showHelp = false;
bool silent = false;
IPAddress serverAddress = null;
var settings = new TFTPClient.Settings()
{
ProgressInterval = TimeSpan.FromMilliseconds(200.0),
OnProgress = Program.OnProgress
};
var optionSet = new OptionSet
{
"",
string.Format("TFTPClient {0}",Assembly.GetExecutingAssembly().GetName().Version.ToString(3)),
"Transfers files to and from a remote computer running the TFTP service.",
"",
"Usage: TFTPClient [options]+ host[:port]",
"",
{ "get", "get a file from remote to local", x => { isGet=true; } },
{ "put", "put a file from local to remote", x => { isPut=true; } },
{ "local=", "local filename", name => localFilename = name },
{ "remote=", "remote filename", name => remoteFilename = name },
{ "serverport=", "override server port (default: 69)", (int port) => serverPort = port },
{ "blocksize=", "set blocksize (default: 512)", (int blocksize) => settings.BlockSize = blocksize },
{ "timeout=", "set response timeout [s] (default: 2)", (int timeout) => settings.ResponseTimeout = TimeSpan.FromSeconds(timeout) },
{ "retries=", "set maximum retries (default: 5)", (int retries) => settings.Retries = retries },
{ "verbose", "generate verbose tracing", x => { settings.OnTrace = Program.OnTrace; } },
{ "ipv6", "resolve hostname to an ipv6 address", x => { ipv6=true; } },
{ "dontfragment", "don't allow packet fragmentation (default: allowed)", x => settings.DontFragment = (x!=null) },
{ "silent", "don't show progress information", x => silent = (x!=null) },
{ "ttl=", "set time to live", (short ttl) => settings.Ttl = ttl },
{ "?|h|help", "show help", x => { showHelp=true; } },
"",
"You may use -, --, or / as option delimiters",
"",
"'host' may be specified as a hostname, ipv4 address or ipv6 address.",
"To specify the port number for a ipv6 address you should put the address",
"in square brackets, e.g. [::1]:69",
"",
"Example: (downloading a file 'image.bin' from a server at 192.168.1.23)",
"\tTFTPClient /get /local=image.bin /remote=image.bin 192.168.1.23",
};
var remaining = optionSet.Parse(args);
if (showHelp || remaining.Count < 1)
{
optionSet.WriteOptionDescriptions(Console.Out);
return 0;
}
if (silent)
{
settings.OnProgress = null;
}
if (!isGet && !isPut)
{
Console.Error.WriteLine("You have to specify /get or /put");
return 1;
}
if (localFilename == null || remoteFilename == null)
{
Console.Error.WriteLine("/local and /remote are mandatory");
return 1;
}
if (IPAddress.TryParse(remaining[0], out serverAddress))
{
// now try to find whether a port was specified
var components = remaining[0].Split(new string[] { serverAddress.AddressFamily == AddressFamily.InterNetworkV6 ? "]:" : ":" }, StringSplitOptions.RemoveEmptyEntries);
if (components.Length > 1) int.TryParse(components[1], out serverPort);
}
else
{
var components = remaining[0].Split(new char[] { ':' }, StringSplitOptions.RemoveEmptyEntries);
serverAddress = Dns.GetHostEntry(components[0]).AddressList.Where(x => x.AddressFamily == (ipv6 ? AddressFamily.InterNetworkV6 : AddressFamily.InterNetwork)).FirstOrDefault();
if (components.Length > 1) int.TryParse(components[1], out serverPort);
}
if (serverAddress == null)
{
Console.Error.WriteLine("Could not resolve '{0}' to an {1} address", remaining[0], ipv6 ? "ipv6" : "ipv4");
return 1;
}
try
{
if (isPut)
{
TFTPClient.Upload(
new IPEndPoint(serverAddress, serverPort),
localFilename,
remoteFilename,
settings);
}
else
{
TFTPClient.Download(
new IPEndPoint(serverAddress, serverPort),
localFilename,
remoteFilename,
settings);
}
if (!silent) Console.WriteLine("Transfer complete.");
return 0;
}
catch (Exception e)
{
Console.Error.WriteLine("Transfer failed: {0}", e.Message);
return 1;
}
}
catch (Exception e)
{
Console.Error.WriteLine("Error: {0}", e.Message);
return 1;
}
}
private void buttonStart_Click(object sender, EventArgs e)
{
try
{
if (task == null)
{
toolStripStatusLabel1.Text = "";
if (string.IsNullOrWhiteSpace(LocalFilename))
{
MessageBox.Show(this, "Please enter a valid local filename", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
if (string.IsNullOrWhiteSpace(RemoteFilename))
{
MessageBox.Show(this, "Please enter a valid remote filename", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
var uiScheduler = TaskScheduler.FromCurrentSynchronizationContext();
IPEndPoint endpoint = ResolveServer(textBoxServer.Text);
string localFilename = LocalFilename;
string remoteFilename = RemoteFilename;
bool isDownload = IsDownload;
var settings = new TFTPClient.Settings();
settings.OnProgress = OnProgress;
settings.ProgressInterval = TimeSpan.FromMilliseconds(200);
settings.BlockSize = Configuration.BlockSize;
settings.DontFragment = Configuration.DontFragment;
settings.ResponseTimeout = TimeSpan.FromSeconds(Configuration.Timeout);
settings.Retries = Configuration.Retries;
settings.Ttl = (short)Configuration.Ttl;
panel1.Enabled = false;
task = Task.Factory.StartNew(
() =>
{
if (isDownload)
{
TFTPClient.Download(endpoint, localFilename, remoteFilename, settings);
}
else
{
TFTPClient.Upload(endpoint, localFilename, remoteFilename, settings);
}
},
TaskCreationOptions.LongRunning
).ContinueWith(
t =>
{
if (t.Exception != null)
{
HandleException(t.Exception.InnerException);
}
panel1.Enabled = true;
task = null;
}
, uiScheduler);
}
}
catch (Exception ex)
{
MessageBox.Show(this, ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}