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[tor-bugs] #4648 [Tor Client]: Tor shouldn't call expand_filename on filenames specified on the command line

#4648: Tor shouldn't call expand_filename on filenames specified on the command
line
------------------------+---------------------------------------------------
 Reporter:  rransom     |          Owner:                    
     Type:  defect      |         Status:  new               
 Priority:  minor       |      Milestone:  Tor: 0.2.3.x-final
Component:  Tor Client  |        Version:                    
 Keywords:              |         Parent:                    
   Points:              |   Actualpoints:                    
------------------------+---------------------------------------------------
 The Unix shell is responsible for expanding `~/...` in filenames specified
 on command lines.  This allows users and scripts to quote that so it won't
 be expanded.

 Unfortunately, Tor expands `~/...` in filenames specified on its command
 line itself.
 {{{
 rransom@ceres:~/tmp$ mkdir '~'
 rransom@ceres:~/tmp$ touch '~/my-screwily-named-torrc'
 rransom@ceres:~/tmp$ /usr/sbin/tor -f '~/my-screwily-named-torrc'
 Dec 04 16:19:51.190 [notice] Tor v0.2.3.8-alpha (git-da15c0cbd6638af3).
 This is experimental software. Do not rely on it for strong anonymity.
 (Running on Linux x86_64)
 Dec 04 16:19:51.192 [warn] Unable to open configuration file
 "/home/rransom/my-screwily-named-torrc".
 Dec 04 16:19:51.192 [err] Reading config failed--see warnings above.
 }}}
 (That wasn't supposed to work, but it wasn't supposed to fail that way,
 either.)

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/4648>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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