Fabio Erculiani
72 lines
1.7 KiB
Bash
72 lines
1.7 KiB
Bash
# Copyright 1999-2008 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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# functions that may not be defined, but are used by the udev-start and udev-stop addon
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# used by baselayout-1 and openrc before version 0.4.0
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cmd_exist()
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{
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type "$1" >/dev/null 2>&1
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}
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# does not exist in baselayout-1, does exist in openrc
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if ! cmd_exist yesno; then
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yesno() {
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[ -z "$1" ] && return 1
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case "$1" in
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yes|Yes|YES) return 0 ;;
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esac
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return 1
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}
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fi
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# does not exist in baselayout-1, does exist in openrc
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#
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# mountinfo <path>
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# check if some filesystem is mounted at mountpoint <path>
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#
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# return value:
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# 0 filesystem is mounted at <path>
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# 1 no filesystem is mounted exactly at <path>
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if ! cmd_exist mountinfo; then
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mountinfo() {
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[ "$1" = "-q" ] && shift
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local dir="$1"
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# check if entry is in /proc/mounts
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local ret=$(gawk 'BEGIN { found="false"; }
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$1 ~ "^#" { next }
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$2 == "'$dir'" { found="true"; }
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END { print found; }
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' /proc/mounts)
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"${ret}"
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}
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fi
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# does not exist in baselayout-1, does exist in openrc
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#
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# used syntax: fstabinfo --mount /dev
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# it should mount /dev if an entry exists in /etc/fstab
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#
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# return value:
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# 0 mount succeeded
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# 1 mount failed or no entry exists
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#
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if ! cmd_exist fstabinfo; then
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fstabinfo() {
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[ "$1" = "--mount" ] || return 1
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local dir="$2"
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# RC_USE_FSTAB does only exist in baselayout-1
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# this emulation is only needed on bl-1, so check always
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yesno "${RC_USE_FSTAB}" || return 1
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# no need to check fstab, mount does this already for us
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# try mounting - better first check fstab and then mount without surpressing errors
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mount -n "${dir}" 2>/dev/null
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return $?
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}
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fi
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