.sh.BSD.in is a better extension.

sh/init.sh.BSD.in

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+#!@SHELL@
+# Copyright 2007-2008 Roy Marples <roy@marples.name>
+# All rights reserved. Released under the 2-clause BSD license.
+
+# This basically mounts $svcdir as a ramdisk, but preserving its content
+# which allows us to run depscan.sh
+# FreeBSD has a nice ramdisk - we don't set a size as we should always
+# be fairly small and we unmount them after the boot level is done anyway
+# NOTE we don't set a size for Linux either
+# FreeBSD-7 supports tmpfs now :)
+mount_svcdir()
+{
+	local dotmp=false release=false retval=0
+	if [ -e "${RC_SVCDIR}"/deptree ]; then
+		dotmp=true
+		if ! mount -t tmpfs none "${RC_LIBDIR}"/tmp 2>/dev/null; then
+			mdconfig -a -t malloc -s 1m -u 1
+			newfs /dev/md1
+			mount /dev/md1 "${RC_LIBDIR}"/tmp
+			release=true
+		fi
+		cp -p "${RC_SVCDIR}"/deptree "${RC_SVCDIR}"/depconfig \
+			"${RC_SVCDIR}"/nettree "${RC_LIBDIR}"/tmp 2>/dev/null
+	fi
+	if ! fstabinfo --mount "${RC_SVCDIR}"; then
+		if ! mount -t tmpfs -o rw,noexec,nosuid none "${RC_SVCDIR}" 2>/dev/null; then
+			mdconfig -a -t malloc -s "${rc_svcsize:-1024}"k -u 0
+			newfs -b 4096 -i 1024 -n /dev/md0
+			mount -o rw,noexec,nosuid /dev/md0 "${RC_SVCDIR}"
+		fi
+	fi
+	retval=$?
+	if ${dotmp}; then
+		cp -p "${RC_LIBDIR}"/tmp/deptree "${RC_LIBDIR}"/tmp/depconfig \
+			"${RC_LIBDIR}"/tmp/nettree "${RC_SVCDIR}" 2>/dev/null
+		umount "${RC_LIBDIR}"/tmp
+		${release} && mdconfig -d -u 1
+	fi
+
+	return ${retval}
+}
+
+. "${RC_LIBDIR}"/sh/functions.sh
+[ -r /etc/rc.conf ] && . /etc/rc.conf
+
+# Disable devd until we need it
+if [ -z "${RC_SYS}" -a "${RC_UNAME}" = "FreeBSD" ]; then
+	sysctl hw.bus.devctl_disable=1 >/dev/null
+fi
+
+. "${RC_LIBDIR}"/sh/init-common-post.sh