Xvfb on AIX: problem establishing connection

[Irek Szczesniak]

Thank you for your email.  I fixed the problem by making sure that 
FAIL_HARD is not defined during the build process.  Undefined 
FAIL_HARD cuts out some code which checks that /tmp/.X11-unix is owned 
by root, among other checks.


Best,
Irek

Josh Triplett wrote:
> Irek Szczesniak wrote:
> 
>>Now that I compiled Xvfb and I am able to run it, I have another
>>problem.  I cannot connect to Xvfb.
>>
>>I run Xvfb:
>>
>>
>>>/scratch/scratchdirs/ijs/xc/programs/Xserver >./Xvfb :100 -fp
>>
>>/scratch/scratchdirs/ijs/xc/fonts/bdf/misc/ -ac
>>
>>>_XSERVTransmkdir: ERROR: euid != 0,directory /tmp/.X11-unix will not
>>
>>be created.
>>
>>>_XSERVTransSocketUNIXCreateListener: mkdir(/tmp/.X11-unix) failed,
>>
>>errno = 2
>>
>>>_XSERVTransMakeAllCOTSServerListeners: failed to create listener for
>>
>>local
> 
> 
> This is the problem right here.
> 
> [...]
> 
>>As you see the connection cannot be established.  I have no knowledge
>>on translating DISPLAY into some communication channel between Xlib and
>>an X server.
>>
>>I would appreciate if someone could advise me what I should do or point
>>me to the documentation which describes the way Xlib connects to an X
>>server.
> 
> 
> Local connections to X servers occur through UNIX sockets, in the
> directory /tmp/.X11-unix; for example, a DISPLAY of :100 corresponds to
> /tmp/.X11-unix/X100.  The X server will not create that directory unless
> run as root, because the directory must be owned by root to prevent
> security problems.  On Debian systems, the X packages solve this problem
> by setting up /tmp/.X11-unix (and /tmp/.ICE-unix, used for the X
> Inter-Client Exchange protocol) in an init.d script.  You could also
> just run the server once as root to set up the directories.  This is
> generally only a problem with X servers that don't touch display
> hardware, as servers that do generally must run as root anyway.
> 
> - Josh Triplett
> 
> 
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