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Date: Tue, 7 Apr 2009 11:34:07 -0500
Message-ID: <75cc17ac0904070934sb498769h38b569799ef5b430@mail.gmail.com>
Subject: Re: cygwin 1.7 fstat weirdness
From: Gregg Reynolds <dev AT mobileink DOT com>
To: cygwin AT cygwin DOT com
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On Mon, Apr 6, 2009 at 9:38 PM, Matt Wozniski <godlygeek AT gmail DOT com> wrote:
>
> On Mon, Apr 6, 2009 at 4:11 PM, Corinna Vinschen wrote:
> > On Apr =C2=A06 14:46, Gregg Reynolds wrote:
> >> =C2=A0 int fd =3D path ? open(path, O_RDONLY, TCFILEMODE) : 0; =C2=A0/=
/ path =3D "Makefile"
> >
> > Is fd =3D=3D 0 by any chance? =C2=A0The above code silently sets fd to =
0 if it
> > can't open path.
>
> Unless I'm missing something, that code sets fd to 0 if path is
> NULL... which doesn't seem to make any sense at all, since 0 is a
> valid file descriptor number...

Right, the code does something if fd =3D=3D 0, but I'm actually trying to
avoid learning the internals. =C2=A0Alas this has already chewed up a lot
of time and I haven't made any headway trying to reproduce it so I'm
about ready to throw in the towel.=C2=A0 The code path looks very simple:
read the command line and call a function to open a file.=C2=A0 The thing
is, the file opens just fine, and I can even read from it, but fstat
(or the S_ISX macros) puke.=C2=A0 I tried stripping out all non-essentials
in the Makefile (e.g. it defines __EXTENSIONS__, _GNU_SOURCE, etc. and
 does some odd stuff with paths) to no avail.=C2=A0 In case anybody wants
to give it a try on another machine, the function is tcreadfile in
tcutil.h in =C2=A0http://sourceforge.net/projects/tokyocabinet/ - remember
you have to add

#define strtold(a,b) ((long double)strtod((a),(b)))

to tcutil.c so tcatoix will compile.=C2=A0 Other than that I think it will
compile on 1.7.

Thanks,

gregg

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