[Bug 20226] builtin xcopy.exe crashes with page fault when source directory does not exist.

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=20226





--- Comment #1 from Robert Backhaus <robbak at gmail.com>  2009-09-30 20:53:03 ---
(In reply to comment #0)
> Created an attachment (id=23862)
 --> (http://bugs.winehq.org/attachment.cgi?id=23862) [details]
> backtrace from crash in xcopy.exe
> 
> The builtin implemetnation of xcopy.exe has a bug wherein xcopy pagefaults on
> exit when the source file does not exist, and option\e (copy empty
> subdirectories) is used. Example below:
> 
>  wine xcopy.exe /e Z:\home\\robbak\\testdir\\nonexistant
> z:\\home\\robbak\\testdir\\nonexist_target
> Path not found
> 
> wine: Unhandled page fault on write access to 0x003a005e at address 0x7bc460f4
> (thread 0042), starting debugger...
> err:seh:raise_exception Unhandled exception code c0000005 flags 0 addr
> 0x7bc460f4
> [1]+  Done                    wine notepad.exe
> 
> Attached is a dump created while running autopatcher, which runs uses
> xcopy.exe. (my simple test did not produce a backtrace.)

a little further examination revealed that you need a nonexistant source and an
existing target: so
wine xcopy.exe /e Z:\\home\\robbak\\testdir\\nonexistant
z:\\home\\robbak\\testdir\\target
File not found

wine: Unhandled page fault on write access to 0x003a005e at address 0x7bc460f4
(thread 004e), starting debugger...
err:seh:raise_exception Unhandled exception code c0000005 flags 0 addr
0x7bc460f4

What it actually does seems to be a bit random: Most of the time I get a
selection of folders from my home directory in the target, other times I get a
crash and backtrace, and the folder stays empty.

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