Re: mode of pidfile

[Ottavio Caruso]

On 2020-07-01 18:00, Ottavio Caruso wrote:
> On Wed, 1 Jul 2020 at 16:59, Ottavio Caruso
> <ottavio2006-usenet2012@yahoo.com> wrote:
> > On Wed, 1 Jul 2020 at 16:45, Kai Peter <kp@lists.openqmail.org> wrote:
> > >
> > > Hi,
> > >
> > > I'm curious why the option -pidfile creates a file with mode 0600.
> >
> > It doesn't :
>
> Sorry, I meant it does, but not owned by root:
>
> > oc@e130:~$ cat opt/bin/boot-openbsd-virtio
> > #!/bin/sh
> > qemu-system-x86_64 \
> > -drive if=virtio,file=/home/oc/VM/img/openbsd.image,index=0,media=disk 
> > \
> > -M q35,accel=kvm -m 250M -cpu host,kvmclock-stable-bit -smp $(nproc) \
> > -nic user,hostfwd=tcp:127.0.0.1:5556-:22,model=virtio-net-pci \
> > -daemonize -display none  \
> > -serial mon:telnet:127.0.0.1:6666,server,nowait \
> > -pidfile /home/oc/VM/pid/openbsd-pid
> >
> >
> > oc@e130:~$ ls -l /home/oc/VM/pid/
> > total 4
> > -rw------- 1 oc oc 5 Jul  1 16:54 openbsd-pid

Exactly, it will be created with mode 0600 (-rw-------). Maybe I wasn't 
clear enough: I want to know why? And Whay not 0644 (-rw-r--r--). Qemu 
sets the owner of the user who invokes it - that's fine. Starting qemu 
as root creates the file owned root:root. Than "-runas <ordinary user>" 
drops privileges and the <ordinary user> couldn't read the file. Maybe 
there is a reason for?

regards
Kai
> > --
> > Ottavio Caruso

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