# HG changeset patch
# User Franz Glasner <fzglas.hg@dom66.de>
# Date 1727527994 -7200
# Node ID a8052a57a921125eddc6bf9c19c3f872097f67a2
# Parent  5ba31e3748ca157f841a8026cd518f86fddda6ed
ftjail: Use "zfs get" instead of "zfs list" to get just some properties; also explicitly check some return codes for code "1" also

diff -r 5ba31e3748ca -r a8052a57a921 sbin/ftjail
--- a/sbin/ftjail	Sat Sep 28 14:51:25 2024 +0200
+++ b/sbin/ftjail	Sat Sep 28 14:53:14 2024 +0200
@@ -903,7 +903,7 @@
     [ -d "${_directory}" ] || { echo "ERROR: directory \`${_directory}' does not exist" 1>&2; return 1; }
 
     [ -z "${_new_origin}" ] && { echo "ERROR: no new origin given" 1>&2; return 2; }
-    zfs list -H -o name -t snapshot "${_new_origin}" >/dev/null || { echo "ERROR: new origin does not exist" 1>&2; return 1; }
+    zfs list -H -o name -t snapshot "${_new_origin}" >/dev/null || { echo "ERROR: ZFS dataset for the new origin \`${_new_origin}' does not exist" 1>&2; return 1; }
     if [ -n "${_etcupdate_tarball}" ]; then
         [ -r "${_etcupdate_tarball}" ] || { echo "ERROR: given etcupdate tarball does not exist and/or is not readable" 1>&2; return 1; }
     fi
@@ -919,6 +919,9 @@
             err "Please stop the \`${_jailname}' jail"
             return 1
             ;;
+        1)
+            return 1
+            ;;
         2)
             err "Jail \`${_jailname}' is currently yet dying"
             return 1
@@ -930,7 +933,7 @@
             return ${_res}
             ;;
     esac
-        
+
     #
     # Check whether additional log sockets are opened at their default
     # locations. Because they hinder proper unmounting of filesystems.
@@ -962,9 +965,9 @@
 EOF4tHGCSSf5d7d9cf
     [ "${_root_mountpoint}" != "${_directory}" ] && { echo "ERROR: found root mountpoint does not match given directory" 1>&2; return 1; }
     [ "${_root_type}" != "zfs" ] && { echo "ERROR: root mountpoint is not from a ZFS dataset" 1>&2; return 1; }
-    _root_readonly="$(zfs list -H -o readonly "${_root_dataset}")"
+    _root_readonly="$(zfs get -H -o value readonly "${_root_dataset}")"
     [ "${_root_readonly}" != "on" ] &&  { echo "ERROR: the root dataset is not mounted read-only" 1>&2; return 1; }
-    _root_origin="$(zfs list -H -o origin "${_root_dataset}")"
+    _root_origin="$(zfs get -H -o value origin "${_root_dataset}")"
     if [ -n "${_opt_old_origin}" ]; then
         [ "${_opt_old_origin}" != "${_root_origin}" ] && { echo "ERROR: origin mismatch" 1>&2; return 1; }
     else