Bug 4449

Summary: shell scripts won't work with strict POSIX shells (e.g. dash)
Product: xprint Reporter: Sandor Geller <wildy>
Component: Server: Config: startup scriptsAssignee: Roland Mainz <roland.mainz>
Status: RESOLVED WONTFIX QA Contact:
Severity: normal    
Priority: high CC: MostAwesomedude
Version: unspecified   
Hardware: x86 (IA32)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Bug Depends on:    
Bug Blocks: 5799    

Description Sandor Geller 2005-09-14 02:35:31 UTC
I checked out and installed X.org CVS (6.8.99.900) version. X won't start
because:

1. the startx script contains a non POSIX-compliant arithmetic evaluation
2. the installed xprint init script uses arrays, which aren't present in
 strictly POSIX-compliant shells

My /bin/sh is dash.

The first problem can be solved by a trivial patch:

--- programs/xinit/startx.cpp.orig      2005-07-26 01:19:06.000000000 +0200
+++ programs/xinit/startx.cpp   2005-09-14 11:27:09.000000000 +0200
@@ -183,7 +183,7 @@
 EOF
        removelist="$displayname $removelist"
     else
-        dummy=$((dummy+1));
+        dummy=$(($dummy+1));
         xauth -q -f $xserverauthfile << EOF
 add :$dummy . $authcookie
 EOF

The second problem can be solved by specifying /bin/bash instead of
/bin/sh - however this assumes that bash is installed into the /bin
directory which might be false on non-Linux platforms.
Comment 1 Sebastien Bacher 2006-02-17 23:36:43 UTC
Ubuntu bug about the first point:
https://launchpad.net/distros/ubuntu/+source/xinit/+bug/31241
Comment 2 Jeremy C. Reed 2006-02-26 02:21:52 UTC
I committed the fix to app/xinit/startx.cpp (but not monolithic
programs/xinit/startx.cpp) for the first problem.
Comment 3 Adam Jackson 2006-04-15 05:56:57 UTC
remaining bug is against xprint
Comment 4 mar77i 2010-03-23 15:35:37 UTC
same for xdm scripts! :)
Comment 5 Corbin Simpson 2011-09-13 15:52:50 UTC
Closing WONTFIX because nobody cares about Xprint. Reopen if you plan to address this bug.

Additionally, if this is a problem with xdm, please refile against xdm. Thank you.

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