Perhaps you can try to read the stderr channel to get the error message itself.(I had a few similar cases where that really helped in diagnosing problems). That doesn't help as much as an error code, but it is a start.
Bert -----Original Message----- From: "Jeremy Friesner" <[email protected]> Sent: 17-5-2014 17:18 To: "libssh2 development" <[email protected]> Subject: Re: How should my libssh2 program detect when the data upload failedbecause the destination partition ran out of space? On May 17, 2014, at 1:08 AM, Daniel Stenberg <[email protected]> wrote: > On Fri, 16 May 2014, Jeremy Friesner wrote: > >> The problem I ran into today involves the scenario when there isn't enough >> drive-space free on the remote machine to hold the entire 152MB file. What >> I would expect to have happen in this case is for libssh2_channel_write() to >> return an error-code at some point to indicate the failure, but the behavior >> I observe instead is that libssh2_channel_write() keeps on behaving normally >> (i.e. returning positive values or -1/LIBSSH2_ERROR_EGAIN, since I'm using >> non-blocking I/O), as if the file transfer was working fine. > > I would expect that to happen as well. Your server obviously doesn't return > any error for this... > >> I note that scp did detect the error, but not until *after* it had already >> uploaded all 152MB to the server. > > Which sounds like a sympthom of the same thing. Yes, I expect it is — OTOH, the scp client was able to print the appropriate error message, so it must be doing something that my program doesn’t do, in order to do that. >> Otherwise, where are all those bytes of data being placed during the upload? > > That would be a question to whoever did the server you're talking to that > eats the bytes. The server is the sshd that ships with Debian Linux; I’m not very clear about who to contact about that… Jeremy _______________________________________________ libssh2-devel http://cool.haxx.se/cgi-bin/mailman/listinfo/libssh2-devel
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