[Bug 678080] Re: Unable to use any options with apt ssh/rsh acquire method

[Frederic Van Espen]

I am quite surprised to see that this critical bug, that renders apt
over ssh unusable if you want to use ssh options, is not fixed in at
least an LTS version of ubuntu after 1.5 years after it has been
reported.

I'm even more surprised that this isn't fixed in LTS when the exact
patch is given by the reporter.

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https://bugs.launchpad.net/bugs/678080

Title:
  Unable to use any options with apt ssh/rsh acquire method

Status in “apt” package in Ubuntu:
  Fix Released

Bug description:
  Binary package hint: apt

  Apt ssh (and rsh) acquire method fails if any Acquire::ssh::Options
  are configured: For example with the setting "Acquire::ssh::Options {
  "-F"; "/etc/apt/ssh/config"; };), apt will try to run the command '-F
  /etc/apt/ssh/config ssh ...' and fails. Of course, the correct command
  would be 'ssh -F /etc/apt/ssh/config'.

  This bug exists in current versions of apt for at least the following Ubuntu versions:
  - upcoming 11.04 (natty): apt-0.8.9ubuntu2
  - 10.04.1 (lucid): apt-0.7.25.3ubuntu9.3
  - 8.04 (hardy): apt-0.7.9ubuntu17.2
  (And in all current Debian's apt versions, too.)

  The fix a is trivial one line move in methods/rsh.cc and identical for
  all the versions listed above. See the attached file
  'fix_rshoptions_parsing.patch'.

  As a workaround I have to use a script /usr/bin/apt-ssh-workaround
  which simply strips out 'ssh' from it's arguments and passes on all
  others to /usr/bin/ssh and then add the name of the script as the
  first argument in Acquire::ssh::Options:

  $ cat /etc/apt/apt.conf.d/95workaround-ssh-options-parser-bug
  Acquire::ssh::Options { "apt-ssh-workaround"; "-F"; "/etc/apt/ssh/ssh_config" };
  $ cat /usr/bin/apt-ssh-workaround
  #!/usr/bin/perl -w
  # Wrapper to workaround Acquire::ssh::Options parser bug, 20101116VM
  use strict;
  use warnings FATAL => qw(all);

  # Copy everything but 'ssh' from @ARGV to @args.
  my(@args);
  foreach (@ARGV) {
    push @args, $_ unless ($_ eq 'ssh');
  }

  exec("ssh", @args);
  $

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