DO NOT REPLY [Bug 4320] New: Daemon should send stdout, stderr of {pre, post}-xfer command to client

[samba-bugs at samba.org]

https://bugzilla.samba.org/show_bug.cgi?id=4320

           Summary: Daemon should send stdout, stderr of {pre,post}-xfer
                    command to client
           Product: rsync
           Version: 3.0.0
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P3
         Component: core
        AssignedTo: wayned at samba.org
        ReportedBy: hashproduct+rsync at gmail.com
         QAContact: rsync-qa at samba.org


It would be nice if an rsync daemon returned data that the pre-xfer or
post-xfer command writes to stdout or stderr to the rsync client in the form of
MSG_INFO and MSG_ERROR messages.

This enhancement would be good for two reasons:

- Pre-xfer and post-xfer commands could report progress and errors to the user.
 In particular, a pre-xfer command could provide a meaningful error message to
accompany rsync's "pre-xfer exec returned failure".

- An rsync daemon would be much more useful as a general-purpose daemon for
remote command execution coupled with file transfer.  For example, I could
script an automated programming contest judge around an rsync daemon.  A
competitor would upload a submission to a module, and the post-xfer script
would grade the submission and send back the results via stdout.


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