On Tue, Nov 12, 2019 at 07:02:56PM +0100, Renaud Allard wrote:
> 
> 
> On 12/11/2019 08:29, Theo de Raadt wrote:
> > 
> > Renaud, please test it for me like this:
> > 
> >       sysupgrade -d /
> > 
> > This interface is dangerously incorrect.
> > 
> 
> What about this one?

> Index: sysupgrade.8
> ===================================================================
> RCS file: /cvs/src/usr.sbin/sysupgrade/sysupgrade.8,v
> retrieving revision 1.10
> diff -u -p -r1.10 sysupgrade.8
> --- sysupgrade.8      3 Oct 2019 12:43:58 -0000       1.10
> +++ sysupgrade.8      12 Nov 2019 18:01:04 -0000
> @@ -24,6 +24,7 @@
>  .Nm
>  .Op Fl fkn
>  .Op Fl r | s
> +.Op Fl d Ar directory
>  .Op Ar installurl
>  .Sh DESCRIPTION
>  .Nm
> @@ -48,6 +49,13 @@ triggering a one-shot upgrade using the 
>  .Pp
>  The options are as follows:
>  .Bl -tag -width Ds
> +.It Fl d Ar directory
> +Choose the prefix of the
> +.Ar directory
> +in which the sets will be downloaded.
> +_sysupgrade will be appended to that name.
> +Default is
> +.Pa /home .
>  .It Fl f
>  Force an already applied upgrade.
>  The default is to upgrade to latest snapshot only if available.
> Index: sysupgrade.sh
> ===================================================================
> RCS file: /cvs/src/usr.sbin/sysupgrade/sysupgrade.sh,v
> retrieving revision 1.32
> diff -u -p -r1.32 sysupgrade.sh
> --- sysupgrade.sh     11 Nov 2019 18:26:52 -0000      1.32
> +++ sysupgrade.sh     12 Nov 2019 18:01:04 -0000
> @@ -25,7 +25,6 @@ umask 0022
>  export PATH=/usr/bin:/bin:/usr/sbin:/sbin
>  
>  ARCH=$(uname -m)
> -SETSDIR=/home/_sysupgrade
>  
>  ug_err()
>  {
> @@ -34,7 +33,7 @@ ug_err()
>  
>  usage()
>  {
> -     ug_err "usage: ${0##*/} [-fkn] [-r | -s] [installurl]"
> +     ug_err "usage: ${0##*/} [-fkn] [-r | -s] [-d directory] [installurl]"
>  }
>  
>  unpriv()
> @@ -73,14 +72,16 @@ rmel() {
>       echo -n "$_c"
>  }
>  
> +SETSDIR=/home/_sysupgrade
>  RELEASE=false
>  SNAP=false
>  FORCE=false
>  KEEP=false
>  REBOOT=true
>  
> -while getopts fknrs arg; do
> +while getopts d:fknrs arg; do
>       case ${arg} in
> +     d)      SETSDIR=${OPTARG}/_sysupgrade;;
>       f)      FORCE=true;;
>       k)      KEEP=true;;
>       n)      REBOOT=false;;
> @@ -195,7 +196,7 @@ ${KEEP} && > keep
>  
>  cat <<__EOT >/auto_upgrade.conf
>  Location of sets = disk
> -Pathname to the sets = /home/_sysupgrade/
> +Pathname to the sets = ${SETSDIR}
>  Set name(s) = done
>  Directory does not contain SHA256.sig. Continue without verification = yes
>  __EOT
> @@ -203,7 +204,7 @@ __EOT
>  if ! ${KEEP}; then
>       CLEAN=$(echo SHA256 ${SETS} | sed -e 's/ /,/g')
>       cat <<__EOT > /etc/rc.firsttime
> -rm -f /home/_sysupgrade/{${CLEAN}}
> +rm -f ${SETSDIR}/{${CLEAN}}
>  __EOT
>  fi
>  

I see no objection to this diff. Changes are minimal and it allows using
another destination safely (_sysupgrade gets appended to the chosen base
directory)

ok solene@

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