Add support for the arbitrary named jail parameters used by jail_set(2)

and jail_get(2).  Jail(8) can now create jails using a "name=value"
format instead of just specifying a limited set of fixed parameters; it
can also modify parameters of existing jails.  Jls(8) can display all
parameters of jails, or a specified set of parameters.  The available
parameters are gathered from the kernel, and not hard-coded into these
programs.

Small patches on killall(1) and jexec(8) to support jail names with
jail_get(2).

Approved by:	bz (mentor)

1 files changed, 5 insertions, 23 deletions

diff --git a/usr.sbin/jexec/jexec.8 b/usr.sbin/jexec/jexec.8
index bdda23d..a98af67 100644
--- a/usr.sbin/jexec/jexec.8
+++ b/usr.sbin/jexec/jexec.8
@@ -25,7 +25,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd November 29, 2008
+.Dd May 27, 2009
 .Dt JEXEC 8
 .Os
 .Sh NAME
@@ -34,36 +34,18 @@
 .Sh SYNOPSIS
 .Nm
 .Op Fl u Ar username | Fl U Ar username
-.Op Fl n Ar jailname
-.Ar jid command ...
+.Ar jail command ...
 .Sh DESCRIPTION
 The
 .Nm
 utility executes
 .Ar command
-inside the jail identified by either
-.Ar jailname
-or
-.Ar jid
-or both.
-.Pp
-If the jail cannot be identified uniquely by the given parameters,
-an error message is printed.
-.Nm
-will also check the state of the jail (once supported) to be
-.Dv ALIVE
-and ignore jails in other states.
-The mandatory argument
-.Ar jid
-is the unique jail identifier as given by
-.Xr jls 8 .
-In case you only want to match on other criteria, give an empty string.
+inside the
+.Ar jail
+identified by its jid or name.
 .Pp
 The following options are available:
 .Bl -tag -width indent
-.It Fl n Ar jailname
-The name of the jail, if given upon creation of the jail.
-This is not the hostname of the jail.
 .It Fl u Ar username
 The user name from host environment as whom the
 .Ar command