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Archived Forum PostQuestion:
I am attempting to upgrade from ChilkatDotNet4.dll version 9.4.1.0 to 9.5.0.58 but the following code no longer works:
sshCK.SendReqExec(channelNum, "type \remote_host_Bshare_name$data.csv && echo Get_Complete"); sshCK.ChannelReceiveUntilMatch(channelNum, "Get_Complete", "ansi", false);
I am connecting to Windows host A via SSH and then having host A print the contents of a remote file on host B, and then append the keyword "Get_Complete" so I know where the data ends.
Here are my observations:
1) This works fine with 9.4.1.0 (i.e. ChannelReceiveUntilMatch() returns true) 2) If I ignore the error and call GetReceivedText(), the data that is returned is exactly what I expected to receive. 3) I tried playing around with ReadTimeoutMs, but regardless of its value the command always returns in about 25ms.
Has this command changed significantly since 9.4 and I just need to change my logic? Or is there a bug of some kind?
Thanks, Richard
Chilkat error: ChilkatLog:
ChannelReceiveUntilMatch(16ms):
DllDate: Jun 13 2016
ChilkatVersion: 9.5.0.58
UnlockPrefix: PETERLSSH
Architecture: Little Endian; 64-bit
Language: .NET 4.0 / x64
VerboseLogging: 1
channelReceiveUntilMatch(16ms):
channel: 5
pattern: Get_Complete
charset: ansi
caseSensitive: 0
readChannelData(16ms):
mType: IGNORE
mType: CHANNEL_DATA
dataLen: 80
clientWinSize: 327600
--readChannelData
readChannelData:
mType: CHANNEL_DATA
dataLen: 512
clientWinSize: 327088
--readChannelData
readChannelData:
mType: CHANNEL_DATA
dataLen: 1024
clientWinSize: 326064
--readChannelData
readChannelData:
mType: CHANNEL_DATA
dataLen: 1968
clientWinSize: 324096
--readChannelData
readChannelData:
mType: CHANNEL_DATA
dataLen: 512
clientWinSize: 323584
--readChannelData
readChannelData:
mType: IGNORE
mType: CHANNEL_DATA
dataLen: 80
clientWinSize: 323504
--readChannelData
readChannelData:
mType: CHANNEL_DATA
dataLen: 944
clientWinSize: 322560
--readChannelData
readChannelData:
mType: CHANNEL_DATA
dataLen: 512
clientWinSize: 322048
--readChannelData
readChannelData:
mType: CHANNEL_DATA
dataLen: 400
clientWinSize: 321648
--readChannelData
readChannelData:
mType: CHANNEL_DATA
dataLen: 512
clientWinSize: 321136
--readChannelData
readChannelData:
mType: CHANNEL_DATA
dataLen: 784
clientWinSize: 320352
--readChannelData
readChannelData:
mType: CHANNEL_DATA
dataLen: 80
clientWinSize: 320272
--readChannelData
readChannelData:
mType: CHANNEL_DATA
dataLen: 784
clientWinSize: 319488
--readChannelData
readChannelData:
mType: IGNORE
mType: CHANNEL_DATA
dataLen: 80
clientWinSize: 319408
--readChannelData
readChannelData:
mType: CHANNEL_DATA
dataLen: 1696
clientWinSize: 317712
--readChannelData
readChannelData:
mType: CHANNEL_DATA
dataLen: 784
clientWinSize: 316928
--readChannelData
readChannelData:
mType: CHANNEL_DATA
dataLen: 1344
clientWinSize: 315584
--readChannelData
readChannelData:
mType: CHANNEL_DATA
dataLen: 704
clientWinSize: 314880
--readChannelData
readChannelData:
mType: CHANNEL_DATA
dataLen: 912
clientWinSize: 313968
--readChannelData
readChannelData:
mType: CHANNEL_DATA
dataLen: 1104
clientWinSize: 312864
--readChannelData
readChannelData:
mType: CHANNEL_DATA
dataLen: 2746
clientWinSize: 310118
--readChannelData
readChannelData:
mType: CHANNEL_DATA
dataLen: 14
clientWinSize: 310104
--readChannelData
readChannelData:
mType: IGNORE
mType: CHANNEL_REQUEST
Received CHANNEL REQUEST message
requestType: exit-status
wantReply: 0
exitStatusCode: 0
Received channel request
--readChannelData
readChannelData:
mType: CHANNEL_EOF
--readChannelData
readChannelData:
mType: CHANNEL_CLOSE
Sent SSH Channel CLOSE
--readChannelData
Failed to receive until match.
--channelReceiveUntilMatch
Failed.
--ChannelReceiveUntilMatch
--ChilkatLog
This was a recent problem fixed just after the v9.5.0.58 release. Here's the new build w/ the patch:
32-bit Download: http://www.chilkatsoft.com/download/preRelease/ChilkatDotNet4-9.5.0-win32.zip
64-bit Download: http://www.chilkatsoft.com/download/preRelease/ChilkatDotNet4-9.5.0-x64.zip
Hi,
The following code has worked perfectly using ChilkatDotNet4-9.5.0.40
Yesterday I upgraded to ChilkatDotNet4-9.5.0.58 and found that _ChilkatSSH.ChannelReceiveUntilMatch fails to find the match string "AReady" (90 second timeout expired). If I skip over the error and look at the subsequent _ChilkatSSH.GetReceivedText, everything received is normal including the match string "AReady".
Seeing the above topic (a related bug?) and your replied patch, ChilkatDotNet4-9.5.0.59, I immediately downloaded and tried it.
Unfortunately, for me, .59 failed exactly as .58
Again, .40 works perfectly. .58 & .59 do not.
Please advise.
Thank you very much!
Regards, Peter
For i = 0 To MAX_CONNECTION_RETRIES
If _ChilkatSSH.Connect(pAApp_IPAddress, "22") Then Exit For
Threading.Thread.Sleep(4000)
Next
If (_ChilkatSSH.AuthenticatePw(pAApp_AMMI_I_Username, pAApp_AMMI_I_Password) <> True) Then Throw New System.Exception(_ChilkatSSH.LastErrorText & vbCrLf)
_Channel = _ChilkatSSH.OpenSessionChannel() 'Open a session channel. (It is possible to have multiple session channels open simultaneously.)
If (_Channel < 0) Then
Throw New System.Exception(_ChilkatSSH.LastErrorText & vbCrLf)
End If
' Create a dumb terminal with a call to Putty???
If (_ChilkatSSH.SendReqPty(_Channel, termType, widthInChars, heightInChars, pixWidth, pixHeight) <> True) Then Throw New System.Exception(_ChilkatSSH.LastErrorText & vbCrLf)
' Start a shell on the channel:
If (_ChilkatSSH.SendReqShell(_Channel) <> True) Then Throw New System.Exception(_ChilkatSSH.LastErrorText & vbCrLf)
If (_ChilkatSSH.ChannelReceiveUntilMatch(_Channel, "AReady", "ansi", True) <> True) Then Throw New System.Exception(_ChilkatSSH.LastErrorText & vbCrLf)
pAApp_AMMI_I_Output = _ChilkatSSH.GetReceivedText(_Channel, "ansi")
_Details &= "SendReqShell:" & pAApp_AMMI_I_Output
If (pAApp_AMMI_I_Output = vbNullString) Then
Throw New System.Exception(_ChilkatSSH.LastErrorText & vbCrLf)
End If
Please check to see if this new build fixes it:
32-bit Download: http://www.chilkatsoft.com/download/preRelease/ChilkatDotNet4-9.5.0-win32.zip
64-bit Download: http://www.chilkatsoft.com/download/preRelease/ChilkatDotNet4-9.5.0-x64.zip
Thank you, rkroehl and Chilkat.
Patch ChilkatDotNet4-9.5.0.59 is working. Based on rkroehl's suggestion, surrounding the match string with asterisks works. I then modified all of my existing source appropriately.
Thank you again for your help!
Regards, Peter