[Bug 21156] Add torrents in webUI with µTorrent >= 2.0 doesn't work

wine-bugs at winehq.org wine-bugs at winehq.org
Sat Jun 5 04:14:35 CDT 2010


http://bugs.winehq.org/show_bug.cgi?id=21156


Damjan Jovanovic <damjan.jov at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |damjan.jov at gmail.com




--- Comment #19 from Damjan Jovanovic <damjan.jov at gmail.com>  2010-06-05 04:14:32 ---
42 votes in < 6 months? Must be a popular app :-).

ReplaceFileW is not the problem here. Some additional tracing in ReplaceFileW
shows that by the time ReplaceFileW is called, the files passed to it are
already empty.

Why? A +file,+relay,+tid trace shows that earlier the torrent file (28316
bytes) got written correctly, then CopyFileW gets called with the same source
and destination and the overwrite option on true, which truncates the file to 0
bytes:

---snip---
001d:Call KERNEL32.CopyFileW(0115e684
L"C:\\users\\dacha\\Temp\\utt600e.tmp.new",0115e258
L"C:\\users\\dacha\\Temp\\utt600e.tmp.new",00000000) ret=0043b083
...
001d:Ret  KERNEL32.CopyFileW() retval=00000001 ret=0043b083
001d:Call KERNEL32.ReplaceFileW(0029f8c0
L"C:\\users\\dacha\\Temp\\utt600e.tmp",0115e258
L"C:\\users\\dacha\\Temp\\utt600e.tmp.new",0115e460
L"C:\\users\\dacha\\Temp\\utt600e.tmp.31585.tmp",00000002,00000000,00000000)
ret=0043b09b
---snip---

Case in point: hacking CopyFileW to return success immediately if the source
and destination are the same, makes adding the Torrent succeed.

Maybe that's what Windows also does? I will test.

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