GNU bug report logs - #6126
24.0.50; Segmentation fault when w32-shell-execute try to open an unassociated file

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Message #11 received at 6126 <at> debbugs.gnu.org (full text, mbox):

From: Chunyu Wang <cymacs <at> gmail.com>
To: Lennart Borgman <lennart.borgman <at> gmail.com>
Cc: 6126 <at> debbugs.gnu.org
Subject: Re: bug#6126: 24.0.50; Segmentation fault when w32-shell-execute try 
	to open an unassociated file
Date: Fri, 7 May 2010 09:52:42 +0800

2010/5/7 Lennart Borgman <lennart.borgman <at> gmail.com>:
> ...
> I do not understand C code but here are some small observations:
>
> - In w32_error the argument error_no has type int. It should be more
> easy to understand if it had the type DWORD which is what GetLastError
> returns. Will using int be correct on all w32 platforms?
Sorry, I have no idea completely.

> - The call to error in w32-shell-execute has only two arguments. Is
> that correct? error in eval.c takes four arguments.

(w32-shell-execute OPERATION DOCUMENT &optional PARAMETERS SHOW-FLAG)
The last two are optional, but emacs crashed even if called with them.

> - The parameter lpBuffer to FormatMessage has the type LPTSTR. Is it
> correct to call that with *char (ie buf)? It looks in the backtrace
> like even the argument a1 to error is incorrect.
no idea too.



-- 
Harbin Institute of Technology, China
Chunyu Wang

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