|
public getInputStream ( ) : |
||
| return | ||
/// <summary>
/// Get intermediate results as ASCII strings. Only the
/// "standard output" stream will be checked, not the "error" stream.
/// Results will be collected until the separator byte is seen,
/// at which time a string will be yielded. The separator
/// byte will be included at the end of each string (except possibly
/// the last).
/// </summary>
/// <param name="sep">A value to separate strings by (e.g., 0x10 for newline). </param>
/// <param name="chan">SSH Channel to use. Should NOT be connected yet. Will be disconnected
/// when streaming finishes.</param>
/// <returns></returns>
protected IEnumerator<string> StreamASCII(byte sep, Channel chan)
{
if (chan == null)
throw new ArgumentNullException("chan");
if (chan.connected)
throw new InvalidOperationException("The channel must not be connected when StreamASCII is called.");
Stream s = null;
try
{
s = chan.getInputStream();
chan.connect();
var res = new StringBuilder();
var fn = StreamResults(s);
byte[] buff;
while ((buff = fn()) != null)
{
int upTo;
if ((upTo = Array.IndexOf(buff, sep) + 1) != 0)
{
if (res.Length > 0)
{
res.Append(Encoding.ASCII.GetString(buff, 0, upTo));
yield return res.ToString();
res.Length = 0;
}
else
yield return Encoding.ASCII.GetString(buff, 0, upTo);
if (upTo < buff.Length)
{
int currUpTo = 0;
while ((currUpTo = Array.IndexOf(buff, sep, upTo) + 1) != 0)
{
yield return Encoding.ASCII.GetString(buff, upTo, currUpTo - upTo);
upTo = currUpTo;
}
if (upTo < buff.Length)
res.Append(Encoding.ASCII.GetString(buff, upTo, buff.Length - upTo));
}
}
else
res.Append(Encoding.ASCII.GetString(buff, 0, buff.Length));
}
if (res.Length > 0)
yield return res.ToString();
}
finally
{
chan.disconnect();
}
}
/// <summary>
/// Connect a channel to the remote server using the 'SCP From' command ('scp -f')
/// </summary>
/// <param name="channel">Will contain the new connected channel</param>
/// <param name="server">Will contaun the new connected server I/O stream</param>
/// <param name="rfile">The remote path on the server</param>
/// <param name="recursive">Idicate a recursive scp transfer</param>
protected void SCP_ConnectFrom(out Channel channel, out Stream server, string rfile, bool recursive)
{
string scpCommand = "scp -f ";
if(recursive) scpCommand += "-r ";
scpCommand += "\""+rfile+"\"";
channel = (ChannelExec)m_session.openChannel(ChannelType);
((ChannelExec)channel).setCommand(scpCommand);
server =
new Tamir.Streams.CombinedStream
(channel.getInputStream(), channel.getOutputStream());
channel.connect();
//SCP_CheckAck(server);
}
/// <summary>
/// Stream results from the channel as ASCII strings. Only the
/// "standard output" stream will be checked, not the "error" stream.
/// Results will be streamed in approximately 1K chunks.
/// </summary>
/// <param name="chan">SSH Channel to use. Should NOT be connected yet. Will be disconnected
/// when streaming finishes.</param>
/// <returns></returns>
protected IEnumerator<string> StreamASCII(Channel chan)
{
if (chan == null)
throw new ArgumentNullException("chan");
if (chan.connected)
throw new InvalidOperationException("The channel must not be connected when StreamASCII is called.");
Stream s = chan.getInputStream();
chan.connect();
try
{
var fn = StreamResults(s);
byte[] buff;
while ((buff = fn()) != null)
yield return Encoding.ASCII.GetString(buff);
}
finally
{
chan.disconnect();
}
}
