On Wed, Oct 17, 2007 at 11:26:48PM +0400, Artem Kuchin wrote: > >>if you try to run a very simple perl script: > >> > >>#!/usr/bin/perl > >>$com="/usr/bin/su root -c 'echo heck'"; > >>system($com); > >>print "done!\n"; > > > >This works fine for me. If I run it as root (and change the user it's > >su'ing to to a normal user), it runs find and prints: > > > >heck > >done > > > > OH MY GOD!!! I have posted this problem before and saw many 'me too' > reponses and thought that this problem is everywhere. After your and > Kostik's posts and decided to make a clean test. Turned off jails > and all custom kernel sysctls. Entered shell and run this cript - it > printed: > > heck > done! > > I have rerun all configs and started jails - still works. Then i remembered > that i have always run this script fro midnight commander. > Started mc > Pressed ENTER on this script and it got suspended. > > Now i am lost, whose problem is this? su's or mc's? or both? > If i remove su from the script and run simply > system('echo heck'); > from mc it work fine. With su it gets suspended. Ah, mc. Ok, it is reproducable in the following way: pooma% sh +m ~ $ ~/work/scratch/su.pl Password: heck done! $ [1] + 1725 suspended (tty input) sh +m pooma% Note the +m, that turns off the job control.
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