[GitHub] [mina-sshd] tomaswolf commented on issue #275: SFTP fails and returns BufferException during file upload

[GitBox <gi...@apache.org>]

tomaswolf commented on issue #275:
URL: https://github.com/apache/mina-sshd/issues/275#issuecomment-1325030738

   What does the _remote_ device run?
   
   Three points:
   
   1. The exception occurs after having received an error reply from the server in response to the `sftp.open()` call. So even if this particular exception is fixed, your problem will not be solved.
   2. The `BufferException: Underflow: requested=4, available=0` [at that point](https://github.com/apache/mina-sshd/blob/45fd3a4a84c453a5e053cce624f63465844deb07/sshd-sftp/src/main/java/org/apache/sshd/sftp/client/impl/AbstractSftpClient.java#L248) indicates that the server sent no error message or language tag in the error status reply. I can't find any information that would say these were optional... but Apache MINA sshd could perhaps be lenient and consider them so.
   3. The failing code has been touched last 8 years ago, so the problem is certainly not new in 2.9.2. I wonder why this problem never was reported before?


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