[Bug 34908] TERA Online patcher fails to start since wine 1.7.6

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=34908

treeki at gmail.com changed:

           What    |Removed                     |Added
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                 CC|                            |treeki at gmail.com

--- Comment #3 from treeki at gmail.com 2013-11-14 17:06:34 CST ---
Hi,

I can confirm this regression in some software I work on. I cannot provide a
download link as it's unreleased proprietary software, but I've done some
exhaustive debugging and I'm extremely confident that this is the cause. Our
HTTP code works perfectly when WINE commit
92426b5136355200bfbc9561fcd9601ac130c66a is reverted, but fails almost
instantly when that commit is applied.

In my case, WinHttpQueryDataAvailable is reporting that more data is available
than there really is. When I try to call WinHttpReadData, passing this amount,
it appears to succeed but the extra data copied into the buffer is actually
garbage -- whatever is located after read_buf inside request_t -- and after a
couple of reads, QueryDataAvailable sends a callback saying there's 0 bytes
available.

There doesn't seem to be any reliable way to detect or work around this bug.

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