| From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
|---|---|
| To: | The Hermit Hacker <scrappy(at)hub(dot)org> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Peter Eisentraut <peter_e(at)gmx(dot)net>, PostgreSQL-development <pgsql-hackers(at)postgreSQL(dot)org> |
| Subject: | Re: [HACKERS] TODO list updated |
| Date: | 2000-01-13 17:25:21 |
| Message-ID: | 200001131725.MAA02639@candle.pha.pa.us |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
> On Thu, 13 Jan 2000, Tom Lane wrote:
>
> > Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> > >> You can't securely do
> > >> echo $PASSWORD | backend
> > >> or
> > >> echo $PASSWORD > allegedly-secure-temp-file
> >
> > > This is secure. echo is a shell builtin, and does not invoke a separate
> > > process with arguments.
> >
> > echo is a builtin in ksh and derivatives, but I don't think it's safe
> > to assume it is a builtin everywhere...
>
> bash-2.03$ which echo
> /usr/slocal/bin/echo
>
which is an external program looking for another external program. From
bash:
#$ type echo
echo is a shell builtin
#$ which which
/usr/bin/which
--
Bruce Momjian | http://www.op.net/~candle
maillist(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026
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