bug in cygwin_conv_to_posix_path() caused by period in win32 path

Larry Hall (Cygwin) reply-to-list-only-lh@cygwin.com
Thu Jul 5 22:50:00 GMT 2007

Pavel Kudrna wrote:
> Christopher Faylor wrote:
>> I suppose it is possible that we'd consider a nicely written, minimally
>> intrusive patch to use these but I'm not 100% certain that it is even
>> possible to do this cleanly given the way the environment variable/path
>> conversion handling works.
> Lets look back to original subject. Function cygwin_conv_to_posix_path()
> should not leave passed win32 path almost unconverted:
> c:.\  ->  c:./
> c:.   ->  c:.
> That is clearly incorrect.
> I found the present meaning of "C:" defined as "C:\" at the beginning
> of path.cc file. So both paths should be converted to /cygdrive/c.
> But I see it much better to convert it according to the contents "!C:"
> environment variable. Even in the present time when these variables are
> without changing inherited between cygwin programs.

I believe Chris was suggesting that if you didn't like the current behavior,
it's a <http://cygwin.com/acronyms/#PTC> situation.  Someone interested in
pursuing this should approach it with care however, since the path handling
code is sensitive code and introducing even the slightest inefficiency can
cause lots of pain for Cygwin users.

Larry Hall                              http://www.rfk.com
RFK Partners, Inc.                      (508) 893-9779 - RFK Office
216 Dalton Rd.                          (508) 893-9889 - FAX
Holliston, MA 01746


A: Yes.
 > Q: Are you sure?
 >> A: Because it reverses the logical flow of conversation.
 >>> Q: Why is top posting annoying in email?

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