openssh bugs - May 2009 - [Bug 1596] New: Option parser does not permit a double-quote character to occur in option values

https://bugzilla.mindrot.org/show_bug.cgi?id=1596

           Summary: Option parser does not permit a double-quote character
                    to occur in option values
           Product: Portable OpenSSH
           Version: 5.2p1
          Platform: All
        OS/Version: All
            Status: NEW
          Keywords: low-hanging-fruit
          Severity: normal
          Priority: P2
         Component: ssh
        AssignedTo: unassigned-bugs at mindrot.org
        ReportedBy: michael.j.fromberger at gmail.com


There is no apparent way to give the ssh command line tool an option
value, either on the command line or in the ssh_config file, which
includes a double-quote (") character (ASCII 34).  Neither doubling the
quotation mark nor escaping it with a backslash seem to work.  The
manual pages do not describe any other escape syntax.  Either an escape
mechanism should be added, or (if one already exists) the documentation
should be updated to describe it clearly.

Background:  On some systems (in my particular case, it's MacOS 10.5),
it is possible for a user's login name to contain a double-quotation
mark character.  There does not seem to be any way to provide a
username of this kind to the command line tool, either via the
configuration file or using the command-line "-o User=xxx" syntax.

If no escape mechanism exists for this case, I would recommend using
doubling to denote internal quotes.  This avoids the need to also quote
a separate escape character, and should not disturb existing
configuration files.

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https://bugzilla.mindrot.org/show_bug.cgi?id=1596

Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |djm at mindrot.org
             Blocks|                            |1626

--- Comment #1 from Damien Miller <djm at mindrot.org> 2009-10-06 15:42:31
EST ---
I think the correct approach for this would be to adapt
sftp.c:makeargv() for use in servconf.c/readconf.c. These would need to
abandon strdelim() and pass around an argc/argv and a current arg
offset. This would have the added benefit of making argument parsing
behave in a much more shell-like manner in the client and server
configs.

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Darren Tucker <dtucker at zip.com.au> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Blocks|1626                        |

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Darren Tucker <dtucker at zip.com.au> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Blocks|                            |1708

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--- Comment #2 from Damien Miller <djm at mindrot.org>  ---
We are freezing for the OpenSSH 5.6 release. Retargetting these bugs to
the next release.

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Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Blocks|                            |1803

--- Comment #3 from Damien Miller <djm at mindrot.org>  ---
Targetting OpenSSH 5.7

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Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Blocks|1708                        |

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Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Blocks|1803                        |

--- Comment #4 from Damien Miller <djm at mindrot.org> 2011-01-24 12:30:51
EST ---
Retarget unclosed bugs from 5.7=>5.8

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Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Blocks|                            |1845

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Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Blocks|                            |1930

--- Comment #5 from Damien Miller <djm at mindrot.org> 2011-09-06 10:34:20
EST ---
Retarget unresolved bugs/features to 6.0 release

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--- Comment #6 from Damien Miller <djm at mindrot.org> 2011-09-06 10:36:32
EST ---
Retarget unresolved bugs/features to 6.0 release

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Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Blocks|1845                        |

--- Comment #7 from Damien Miller <djm at mindrot.org> 2011-09-06 10:39:08
EST ---
Retarget unresolved bugs/features to 6.0 release

(try again - bugzilla's "change several" isn't)

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Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Blocks|                            |1986

--- Comment #8 from Damien Miller <djm at mindrot.org> 2012-02-24 10:34:29
EST ---
Retarget from 6.0 to 6.1

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Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Blocks|1930                        |

--- Comment #9 from Damien Miller <djm at mindrot.org> 2012-02-24 10:38:08
EST ---
Retarget 6.0 => 6.1

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