On Wed, 4 Oct 2017, Eduardo A. Bustamante López wrote:
> On Tue, Oct 03, 2017 at 10:29:08PM +0200, Mikulas Patocka wrote:
> > If $OLDPWD points to a non-existing directory, 'cd -' will fail.
> > But if we clear $OLDPWD, 'cd -' will fail too (with just
On Mon, 2 Oct 2017, Chet Ramey wrote:
> On 10/1/17 7:30 PM, L A Walsh wrote:
>
> > Only in the case of login -- they user CAN'T set it before they login, but
> > someone **could** have changed the system /etc/profile script to set OLDPWD
> > to /hang (i.e. someone is behaving "maliciously").
>
On Tue, 3 Oct 2017, Chet Ramey wrote:
> On 10/3/17 4:14 PM, Mikulas Patocka wrote:
> >
> >
> > On Sun, 1 Oct 2017, Chet Ramey wrote:
> >
> >> On 9/30/17 4:20 AM, Mikulas Patocka wrote:
> >>
> >>> Is there some reason why do we need to
On Sun, 1 Oct 2017, Chet Ramey wrote:
> On 9/30/17 4:20 AM, Mikulas Patocka wrote:
>
> > Is there some reason why do we need to check if $OLDPWD is a real
> > directory? dash and ksh accept the $OLDPWD variable, but don't poke it
> > with the stat syscall. zsh
On Sat, 30 Sep 2017, L A Walsh wrote:
>
>
> Mikulas Patocka wrote:
> > I don't set up OLDPWD in /etc/profile.
> ---
>No one does -- unless someone is trying to cause mischief. It's not
> a likely event, but it would be annoying if someone did it.
&g
On Fri, 29 Sep 2017, Eduardo A. Bustamante López wrote:
> On Fri, Sep 29, 2017 at 11:12:59AM +0200, Mikulas Patocka wrote:
> > This patch doesn't revert the above change. It only removes a test if
> > $OLDPWD is a directory. With this patch, if $OLDPWD points to a directory
On Fri, 29 Sep 2017, L A Walsh wrote:
> Chet Ramey wrote:
> >
> > This is all correct. The change was introduced for a reason, and
> > accommodating a rare occurrence by backing it out would be non-
> > productive.
> >
> ---
> The reason?:
>
> Why does bash clear OLDPWD when a child script
On Fri, 29 Sep 2017, Eduardo A. Bustamante López wrote:
> On Fri, Sep 29, 2017 at 12:51:37AM -0700, L A Walsh wrote:
> [...]
> > Why does bash clear OLDPWD when a child script is started?
> >
> > OLDPWD is exported and passed to any children, but bash apparently clears
> > OLDPWD whenever a chi
On Fri, 29 Sep 2017, Mikulas Patocka wrote:
>
>
> On Thu, 28 Sep 2017, Eduardo A. Bustamante López wrote:
>
> > On Thu, Sep 28, 2017 at 11:44:02AM +0200, Mikulas Patocka wrote:
> > [...]
> > > +++ bash/variables.c
> > > @@ -899,7 +899,7 @@ set_p
On Thu, 28 Sep 2017, Eduardo A. Bustamante López wrote:
> On Thu, Sep 28, 2017 at 11:44:02AM +0200, Mikulas Patocka wrote:
> [...]
> > +++ bash/variables.c
> > @@ -899,7 +899,7 @@ set_pwd ()
> > don't find OLDPWD in the environment, or it doesn't name a
Bash attempts to execute the stat syscall on the $OLDPWD variable on every
startup. This results in hard to diagnose hangs if the $OLDPWD variable
points to a directory on network filesystem that is inaccessible (for
example sshfs or nfs).
How to reproduce the hang:
- mount an sshfs directory
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