Date: Fri, 08 Jun 2001 10:29:59 +0300
From: "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il>
Sender: halo1 AT zahav DOT net DOT il
To: "Alex Oleynikov" <alex AT compuweigh DOT com>
Message-Id: <2593-Fri08Jun2001102958+0300-eliz@is.elta.co.il>
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CC: djgpp AT delorie DOT com
In-reply-to: <001101c0ef92$04945eb0$1400a8c0@alex2000>
Subject: Re: DJGPP on PTS-DOS run problem
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> From: "Alex Oleynikov" <alex AT compuweigh DOT com>
> Date: Thu, 7 Jun 2001 16:39:43 -0400
> 
> Call to _chmod( ) fails with the following results:
> R.X.AX = 3
> R.X.AX_HI = 0x2D
> errno = 22

Okay, AX = 3 is "Path not found".  This means that PTS-DOS thinks the
directy part of the file name, "foo/../", is invalid or points to a
non-existing directory.

This is strange; I suspect some bug in PTS-DOS's file-name
canonicalization code.  What does the library function _truename
return if you pass it "foo/../nametest.exe" as an argument?

Also, is it true that ``access("foo/../nametest.exe", 0)'' fails, but
``access("nametest.exe", 0)'' succeeds on PTS-DOS?

What happens if you use backslashes instead of forward slashes in
these file names?

> Call to findfirst( ) fails with the following results:
> R.X.AX = 3
> R.X.AX_HI = 0x2D
> errno = 22

The same AX = 3.

> Actually, the findfirst( ) is not called from this place, because
> fixed_path[] contains "d:/cd4000/probe.tc/nametest.exe"
> ( Why? Isn't it should be "d:/cd4000/probe.tc/foo/nametest.exe" ? )

No.  The program nametest.exe is not in the foo subdirectory, it's in
d:/cd4000/probe.tc directory, right?  The file name
"foo/../nametest.exe" says go down into foo, then go up again, so it
ends up in the same directory where it started.

Does `access' work at all on PTS-DOS?  Can you make it work for any
file name at all, with or without leading directories, with forward or
backslashes--in any way?