Re: Bug when doing a ssh_channel_read with no contents

[Andreas Schneider <asn@xxxxxxxxxxxxxx>]

On Friday, May 31, 2019 2:54:36 AM CEST Alex Zhang wrote:
> Hey all,

Hi Alex,

> I think I found a bug when reading the output of a remotely executed command
> is 0 bytes (ie “ls” in an empty directory).
> 
> The ssh_channel_read should return 0 bytes, but the callback
> “channel_rcv_close” automatically sets the state to be
> SSH_CHANNEL_STATE_CLOSED which then causes in ssh_channel_read_timeout to
> return SSH_ERROR because of this line of code:
> 
> https://git.libssh.org/projects/libssh.git/tree/src/channels.c
> <https://git.libssh.org/projects/libssh.git/tree/src/channels.c> Line 2897.

I'm not 100% sure if this is a bug. The question is what impact it might have 
returning 0. Can you open a bug report?


Thanks,


	Andreas


-- 
Andreas Schneider                 asn@xxxxxxxxxxxxxx
GPG-ID:     8DFF53E18F2ABC8D8F3C92237EE0FC4DCC014E3D