[Bug 35578] Multiple applications crash on install/startup ('COMPUTERNAME' environment variable not present)(Mentor Pads Free Viewer, Flightgear 3)

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=35578

Anastasius Focht <focht at gmx.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Mentor Pads Free Viewer     |Multiple applications crash
                   |crashes on install          |on install/startup
                   |immediately ('COMPUTERNAME' |('COMPUTERNAME' environment
                   |environment variable not    |variable not
                   |present)                    |present)(Mentor Pads Free
                   |                            |Viewer, Flightgear 3)

--- Comment #4 from Anastasius Focht <focht at gmx.net> ---
Hello folks,

I found another victim: 'Flightgear 3'

Reported here: http://forum.winehq.org/viewtopic.php?f=8&t=22138

Download:
http://ftp.icm.edu.pl/packages/flightgear/Windows/Setup%20FlightGear%203.0.0.exe

--- snip ---
$ pwd
/home/focht/.wine/drive_c/Program Files/FlightGear/bin/Win32

$ WINEDEBUG=+tid,+seh,+relay wine ./fgfs.exe >>log.txt 2>&1
...
0024:trace:seh:raise_exception code=c0000005 flags=0 addr=0x402158 ip=00402158
tid=0024
0024:trace:seh:raise_exception  info[0]=00000000
0024:trace:seh:raise_exception  info[1]=00000000
0024:trace:seh:raise_exception  eax=00000000 ebx=00000000 ecx=00000000
edx=78b554ac esi=00000001 edi=00ea3d48
0024:trace:seh:raise_exception  ebp=018dfd80 esp=018df88c cs=0023 ds=002b
es=002b fs=0063 gs=006b flags=00010202
0024:trace:seh:call_stack_handlers calling handler at 0xbfc5af code=c0000005
flags=0
...
Unhandled exception: page fault on read access to 0x00000000 in 32-bit code
(0x00402158).
...
Backtrace:
=>0 0x00402158 in fgfs (+0x2158) (0x018dfd80)
  1 0x00402736 in fgfs (+0x2735) (0x018dfe20)
  2 0x7b864120 call_process_entry+0xb() in kernel32 (0x018dfe38) 
...
0x00402158: movb    0x0(%ecx),%dl
Modules:
Module    Address            Debug info    Name (69 modules)
PE      240000-  283000    Deferred        osg100-osgtext
PE      290000-  357000    Deferred        osg100-osgdb
PE      360000-  36a000    Deferred        ot13-openthreads
PE      370000-  3de000    Deferred        osg100-osgsim
PE      400000-  f42000    Export          fgfs
PE     18e0000- 1ae5000    Deferred        osg100-osg
PE     1af0000- 1c0b000    Deferred        osg100-osgutil
PE     1c10000- 1c51000    Deferred        osg100-osgparticle
PE     1c60000- 1cf8000    Deferred        osg100-osgviewer
PE     1d00000- 1d40000    Deferred        osg100-osgga
PE    10000000-10025000    Deferred        crashrpt1402
PE    78aa0000-78b5f000    Deferred        msvcr100 
...
Threads:
process  tid      prio (all id:s are in hex)
...
00000023 (D) C:\Program Files\FlightGear\bin\Win32\fgfs.exe
    00000024    0 <== 
--- snip ---

The app code:

--- snip ---
...
00402134  PUSH 8000
00402139  MOV DWORD PTR SS:[EBP-4D4],EAX
0040213F  CALL DWORD PTR DS:[<&KERNEL32.SetErrorMode>]
00402145  PUSH fgfs.00CEB73C                          ; ASCII "COMPUTERNAME"
0040214A  CALL DWORD PTR DS:[<&MSVCR100.getenv>]
00402150  MOV ECX,EAX
00402152  ADD ESP,4
00402155  LEA ESI,DWORD PTR DS:[ECX+1]
00402158  MOV DL,BYTE PTR DS:[ECX]                    ; *boom*
...
--- snip ---

You can work around as follows:

--- snip ---
$ COMPUTERNAME=$HOSTNAME wine ./fgfs.exe
--- snip ---

$ sha1sum Setup\ FlightGear\ 3.0.0.exe 
c6b9b7576db3343fce2cedcb81692c3626a82e18  Setup FlightGear 3.0.0.exe

$ du -sh Setup\ FlightGear\ 3.0.0.exe 
1014M    Setup FlightGear 3.0.0.exe

$ wine --version
wine-1.7.15-107-gf3488d0

Regards

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