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Date:	Mon, 9 Feb 2015 11:17:47 +0100
From:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: execlp/execvp needs case-correct PATH
Message-ID:	<20150209101747.GA12131@calimero.vinschen.de>
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On Feb  9 00:04, Thomas Wolff wrote:
> With a Windows case sensitive file system (and according mount flags
> for /cygdrive), the PATH does not properly reflect casing of the actual
> directories (e.g. C:\WINDOWS vs. C:\Windows, thanks MS...).
> However, the shell finds programs anyway, like e.g. notepad.
> The exec*p system calls, on the other hand, do not find a program in this
> case as demonstrated by the attached test program.
> This is in contrast to the Linux (and POSIX?) manual page which claims
> =E2=80=9EThe execlp(), execvp(), and execvpe() functions duplicate the ac=
tions
> of the shell in searching for an executable file =E2=80=A6=E2=80=9C

I can't reproduce this.  If I change my cygdrive mounts to
case-sensitive, my shell doesn't start notepad anymore:

  $ cat /etc/fstab
  none /mnt cygdrive binary,posix=3D1,user 0 0
  $ echo $SHELL
  /bin/tcsh
  $ echo $path
  /usr/bin /mnt/c/WINDOWS/system32 /mnt/c/WINDOWS /mnt/c/WINDOWS/System32/W=
bem /mnt/c/WINDOWS/System32/WindowsPowerShell/v1.0 /usr/lib/lapack
  $ notepad
  notepad: Command not found.
  $ /mnt/c/Windows/notepad
  <works>
  $


Corinna

--=20
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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