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#!/bin/sh
#
# Send email to ZED_EMAIL in response to a given zevent.
# This is a generic script than can be symlinked to a file in the zed
# enabled-scripts directory in order to have email sent when a particular
# class of zevents occurs. The symlink filename must begin with the zevent
# (sub)class string (eg, "probe_failure-email.sh" for the "probe_failure"
# subclass). Refer to the zed(8) manpage for details.
# Exit codes:
# 0: email sent
# 1: email failed
# 2: email suppressed
# 3: missing executable
#
test -f "${ZED_ZEDLET_DIR}/zed.rc" && . "${ZED_ZEDLET_DIR}/zed.rc"
# Only send email if ZED_EMAIL has been configured.
test -n "${ZED_EMAIL}" || exit 2
# Ensure requisite executables are installed.
if ! command -v "${MAIL:=mail}" >/dev/null 2>&1; then
logger -t "${ZED_SYSLOG_TAG:=zed}" \
-p "${ZED_SYSLOG_PRIORITY:=daemon.warning}" \
`basename "$0"`: "${MAIL}" not installed
exit 3
fi
# Override the default umask to restrict access to the msgbody tmpfile.
umask 077
SUBJECT="ZFS ${ZEVENT_SUBCLASS} event"
test -n "${ZEVENT_POOL}" && SUBJECT="${SUBJECT} for ${ZEVENT_POOL}"
SUBJECT="${SUBJECT} on `hostname`"
MSGBODY="${TMPDIR:=/tmp}/`basename \"$0\"`.$$"
{
echo "A ZFS ${ZEVENT_SUBCLASS} event has been posted:"
echo
echo " eid: ${ZEVENT_EID}"
echo " host: `hostname`"
echo " time: ${ZEVENT_TIME_STRING}"
test -n "${ZEVENT_VDEV_TYPE}" -a -n "${ZEVENT_VDEV_PATH}" && \
echo " vdev: ${ZEVENT_VDEV_TYPE}:${ZEVENT_VDEV_PATH}"
test -n "${ZEVENT_POOL}" -a -x "${ZPOOL}" && \
"${ZPOOL}" status "${ZEVENT_POOL}"
} > "${MSGBODY}"
test -f "${MSGBODY}" && "${MAIL}" -s "${SUBJECT}" "${ZED_EMAIL}" < "${MSGBODY}"
MAIL_STATUS=$?
rm -f "${MSGBODY}"
if test "${MAIL_STATUS}" -ne 0; then
logger -t "${ZED_SYSLOG_TAG:=zed}" \
-p "${ZED_SYSLOG_PRIORITY:=daemon.warning}" \
`basename "$0"`: "${MAIL}" exit="${MAIL_STATUS}"
exit 1
fi
exit 0
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