-# Network filesystems list for common use in rc-scripts.
-# This variable is used in is_net_fs and other places such as
-# localmount.
-NET_FS_LIST="afs cifs coda gfs ncpfs nfs nfs4 shfs smbfs"
-
-# bool is_net_fs(path)
-#
-# return 0 if path is the mountpoint of a networked filesystem
-#
-# EXAMPLE: if is_net_fs / ; then ...
-#
-is_net_fs() {
- local fstype
- # /proc/mounts is always accurate but may not always be available
- if [ -e /proc/mounts ]; then
- fstype="$( sed -n -e '/^rootfs/!s:.* '"$1"' \([^ ]*\).*:\1:p' /proc/mounts )"
- else
- fstype="$( mount | sed -n -e 's:.* on '"$1"' type \([^ ]*\).*:\1:p' )"
- fi
- case " ${NET_FS_LIST} " in
- *" ${fstype} "*)
- return 0
- ;;
- *)
- return 1
- ;;
- esac
-}
-
-# bool is_uml_sys()
-#
-# return 0 if the currently running system is User Mode Linux
-#
-# EXAMPLE: if is_uml_sys ; then ...
-#
-is_uml_sys() {
- grep -qs 'UML' /proc/cpuinfo
- return $?
-}
-
-# bool is_vserver_sys()
-#
-# return 0 if the currently running system is a Linux VServer
-#
-# EXAMPLE: if is_vserver_sys ; then ...
-#
-is_vserver_sys() {
- grep -qs '^s_context:[[:space:]]*[1-9]' /proc/self/status
- return $?
-}
-
-# bool get_mount_fstab(path)
-#
-# return the parameters to pass to the mount command generated from fstab
-#
-# EXAMPLE: cmd=$( get_mount_fstab /proc )
-# cmd=${cmd:--t proc none /proc}
-# mount -n ${cmd}
-#
-get_mount_fstab() {
- awk '$1 ~ "^#" { next }
- $2 == "'$*'" { if (found++ == 0) { print "-t "$3,"-o "$4,$1,$2 } }
- END { if (found > 1) { print "More than one entry for '$*' found in /etc/fstab!" > "/dev/stderr" } }
- ' /etc/fstab
-}
-