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The curl does not do any (or enough) chunking when writing large files using the sftp_write() function which causes some servers to choke [1]. The simplest solution is to limit the SFTP packet size according the SFTP specification recommendation which is 32768 B and not write more. This means the function will not write the whole amount of data it was asked to write and the calling applications are required to handle the return values correctly. More complicated solution would be to send several SFTP packet from the single sftp_write() function by iterating over the all data passed. The next improvement in the long term should be respecting the value reported by the server in the limits@openssh.com extension, which specifies the maximum packet size and reads/writes explicitly (if supported). [1] https://github.com/curl/curl/pull/11804 Signed-off-by: Jakub Jelen <jjelen@redhat.com> Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
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The SSH library
Why?
Why not ? :) I've began to work on my own implementation of the ssh protocol because i didn't like the currently public ones. Not any allowed you to import and use the functions as a powerful library, and so i worked on a library-based SSH implementation which was non-existing in the free and open source software world.
How/Who?
If you downloaded this file, you must know what it is : a library for accessing ssh client services through C libraries calls in a simple manner. Everybody can use this software under the terms of the LGPL - see the COPYING file
If you ask yourself how to compile libssh, please read INSTALL before anything.
Where ?
Contributing
Please read the file 'CONTRIBUTING.md' next to this README file. It explains our copyright policy and how you should send patches for upstream inclusion.
Have fun and happy libssh hacking!
The libssh Team