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#!/bin/bash
# check_readonlyfs: Check for readonly filesystems
# Copyright (C) 2010 Davide Madrisan <davide.madrisan@gmail.com>
PROGNAME=`/bin/basename $0`
PROGPATH=`echo $0 | sed -e 's,[\\/][^\\/][^\\/]*$,,'`
REVISION=`echo '$Revision: 1 $' | sed -e 's/[^0-9.]//g'`
. $PROGPATH/utils.sh
print_usage() {
echo "Usage: $PROGNAME --no-network-fs"
echo "Usage: $PROGNAME --help"
echo "Usage: $PROGNAME --version"
}
print_help() {
print_revision $PROGNAME $REVISION
echo ""
print_usage
echo ""
echo "readonly filesystem checker plugin for Nagios"
echo ""
support
}
NETFS=1
# Grab the command line arguments
exitstatus=$STATE_WARNING #default
while test -n "$1"; do
case "$1" in
--help|-h)
print_help
exit $STATE_OK
;;
--version|-V)
print_revision $PROGNAME $REVISION
exit $STATE_OK
;;
--no-network-fs|-n)
NETFS="0"
;;
*)
echo "Unknown argument: $1"
print_usage
exit $STATE_UNKNOWN
;;
esac
shift
done
[ -r /proc/mounts ] || { echo "cannot read /proc/mounts!"; exit $STATE_UNKNOWN; }
nerr=0
IFS_SAVE="$IFS"
rofs_list=""
while read dev mp fs mopt ignore; do
[ "$dev" = none ] && continue
case $fs in binfmt_misc|devpts|iso9660|proc|selinuxfs|rpc_pipefs|sysfs|tmpfs|usbfs)
continue ;;
esac
case $fs in autofs|nfs|nfs4|smbfs)
# skip the network filesystems
[ "$NETFS" = 0 ] && continue ;;
esac
IFS=","; set -- $mopt; IFS="$IFS_SAVE"
while :; do
case "$1" in
ro) rofs_list="$rofs_list $mp"; nerr=$(( $nerr + 1 )) ;;
"") shift; break ;;
esac
shift
done
done < <(LC_ALL=C /bin/cat /proc/mounts 2>/dev/null)
[ $nerr -eq 0 ] && { echo OK; exit $STATE_OK; } || echo "$rofs_list: read only fs"
exit $exitstatus
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