Re: does numeric only name of jails not allowed (bug?)

From: Vadim Goncharov <vadimnuclight_at_gmail.com>
Date: Sat, 09 Aug 2025 20:09:43 UTC
Hi,

Well, now I could agree it's seems to be a bug (until something more is known).

On Sat, 9 Aug 2025 13:23:59 +0300
Anthony Pankov <anthony.pankov@yahoo.com> wrote:

> Hello Vadim,
> 
> Unfortunetly it does not work:
> 
> root@builderhost:/ws/a7777 # jail -c 47777
> jail: 47777: host.hostname: variable "name" not found
> jail: 47777: exec.consolelog: variable "name" not found
> 
> root@builderhost:/ws/a7777 # head embedding/jail-a7777.conf
> ...
> "47777" {
>         host.hostname = "${name}";
> ...
> 
> 
> Friday, August 8, 2025, 8:04:12 PM, you wrote:
> 
> > On Wed, 6 Aug 2025 17:37:36 +0300
> > Anthony Pankov <anthony.pankov@yahoo.com> wrote:  
> 
> >> It seems there is no sign that numeric only name is prohibited:
> >> 
> >> "
> >> The jail name.  This is an arbitrary string that identifies a
> >>              jail (except it may not contain a ďż˝.ďż˝).
> >> "
> >> 
> >> But 
> >> # head jail-47777.conf
> >> ...
> >> 47777 {
> >>         host.hostname = "${name}";
> >> ...
> >> 
> >> # jail -c 47777
> >> jail: 47777: host.hostname: variable "name" not found
> >> 
> >> If I add letter prefix, say w47777, it worked.
> >> 
> >> Because of strange error "variable "name" not found" it seems like a bug.
> >> Does it?  
> 
> > This is of course not a bug, because how would you distinguish identifiers
> > from numbers in grammar, then? jail.conf(5) documents:  
> 
> >    String format
> >      Parameter values, including jail names, can be single tokens or quoted
> >      strings.  A token is any sequence of characters that aren't considered
> >      special in the syntax of the configuration file (such as a semicolon
> > or whitespace).  If a value contains anything more than letters, numbers,
> >      dots, dashes and underscores, it is advisable to put quote marks
> > around that value.  Either single or double quotes may be used.  
> 
> > So you could try to just write "47777" { param = "value"; ...  


-- 
WBR, @nuclight