SYSV init script fixes.

* Change the order of the function library check/load.
  Redhat based system _can_ have a /lib/lsb/init-functions file (from
  the redhat-lsb-core package), but it's only partially what we can use.
  Instead, look for that file last, giving the script a chance to catch
  the 'real' distribution file.
* Filter out dashes in dataset name in read_mtab().
* If find/awk doesn't exist but 'busybox' do, create a wrapper function.

Signed-off-by: Turbo Fredriksson [email protected]
Closes openzfs#3463
Closes openzfs#3457

etc/init.d/zfs-functions.in

@@ -13,15 +13,15 @@
 PATH=/sbin:/bin:/usr/bin:/usr/sbin
 
 # Source function library
-if [ -f /lib/lsb/init-functions ]; then
-	# LSB, Debian GNU/Linux and derivates
-	. /lib/lsb/init-functions
-elif [ -f /etc/rc.d/init.d/functions ]; then
+if [ -f /etc/rc.d/init.d/functions ]; then
 	# RedHat and derivates
 	. /etc/rc.d/init.d/functions
 elif [ -L /etc/init.d/functions.sh ]; then
 	# Gentoo
 	. /etc/init.d/functions.sh
+elif [ -f /lib/lsb/init-functions ]; then
+	# LSB, Debian GNU/Linux and derivates
+	. /lib/lsb/init-functions
 fi
 
 # Of course the functions we need are called differently
@@ -87,6 +87,22 @@ else
 	zfs_log_progress_msg() { echo -n "$1"; }
 fi
 
+if ! type find > /dev/null 2>&1 ; then
+	# 'find' is needed by zfs-import.
+	if type busybox > /dev/null 2>&1 ; then
+		# No find, but we have busybox.
+		find() { busybox find "$@"; }
+	fi
+fi
+
+if ! type awk > /dev/null 2>&1 ; then
+	# 'awk' is needed by zfs-mount.
+	if type busybox > /dev/null 2>&1 ; then
+		# No awk, but we have busybox.
+		awk() { busybox awk "$@"; }
+	fi
+fi
+
 # Paths to what we need
 ZFS="@sbindir@/zfs"
 ZED="@sbindir@/zed"
@@ -373,7 +389,8 @@ read_mtab()
 
 	while read -r fs mntpnt fstype opts rest; do
 		if echo "$fs $mntpnt $fstype $opts" | grep -qE "$match"; then
-			mntpnt=$(printf '%b\n' "$mntpnt" | sed 's,/,_,g')
+			mntpnt=$(printf '%b\n' "$mntpnt" | sed -e 's,/,_,g' \
+			    -e 's,-,_,g')
 			eval export MTAB_$mntpnt="$fs"
 		fi
 	done < /proc/mounts