[Bug 1309710] Re: Backups broken when "ssh_args" are set

[Lupe Christoph]

To describe the fix explicitly for impatient people like me:

Change line 3459 in /usr/bin/rsnapshot, remove the two escaped quotes
(\"). The result should be this:

push( @rsync_long_args_stack, "--rsh=$config_vars{'cmd_ssh'} $ssh_args"
);

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https://bugs.launchpad.net/bugs/1309710

Title:
  Backups broken when "ssh_args" are set

Status in “rsnapshot” package in Ubuntu:
  Confirmed
Status in “rsnapshot” package in Debian:
  New

Bug description:
  In ubuntu 14.04 LTS, rsnapshot 1.3.1-4 is broken when 'ssh_args' are
  set in the rsnapshot configuration file. For example, I set ssh_args
  to '-p 22022', which causes my rsnapshot backup to fail with he
  following error:

    rsync: Failed to exec /usr/bin/ssh -p 22022: No such file or directory (2)
    rsync error: error in IPC code (code 14) at pipe.c(85) [Receiver=3.1.0]

  This worked in saucy's 1.3.1-3 rsnapshot; the newer version has
  changed the way rsync is invoked from rsnapshot, passing an array to
  perl's system() function (which is not interpreted by a shell before
  being exec()ed) rather than a constructed single string, which is
  interpreted by a shell, and thus requires the arguments passed to
  rsync's -rsh argument to be quoted so as to be gathered into a single
  argument by the shell.

  (This was also reported in debian bug https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=717451)

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