From: Nathaniel Chen <nathaniel.chen@intel.com>
Date: Tue, 5 Mar 2013 19:46:34 +0000 (-0800)
Subject: hostnamed: allow more special characters in pretty hostname
X-Git-Tag: v198~68
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=ebe5d6d0d05d1f17c96315c42f8d9bcf5e13ba9d;hp=ebe5d6d0d05d1f17c96315c42f8d9bcf5e13ba9d

hostnamed: allow more special characters in pretty hostname

this addresses the bug at:
  https://bugs.freedesktop.org/show_bug.cgi?id=59311
  https://bugzilla.redhat.com/show_bug.cgi?id=895299

hostnamectl is supposed to allow a range of special characters for
the 'pretty' hostname:
  $ hostnamectl set-hostname --pretty "Nathaniels Desktop !@#$%"
..however, it rejects apostrophes, double quotes, and backslashes.
The manual for hostnamectl suggests that this should be allowed.

It makes sense to reject \0, \n, etc. pretty_string_is_safe() is
the same as string_is_safe(), but allows more special characters.
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