Re: bug fix: Prevented strlen(NULL) in PRINTDLG_CreateDevNames() - wine-devel

25 Nov 2007


      Am Sonntag, 25. November 2007 12:35:36 schrieb Jorma Laaksonen:
...
Hello!
wine-0.9.49 (as well as many earlier versions) seems to crash when
PRINTDLG_CreateDevNames() is for some reason called with DeviceDriverName
equal to NULL.  The real cause of this problem might be somewhere else
where the NULL is assigned, but this simple fix prevents NULL being
passed to strlen().
If you suspect that the real problem is somewhere else, it is recommended to 
write a test case to see how Windows deals with this situation. Windows could 
return an error if the device driver name is NULL. If Windows crashes as 
well, your patch would only hide a bug instead of fixing it.