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# $OpenBSD: rc.subr,v 1.117 2017/01/24 01:11:11 ajacoutot Exp $
#
# Copyright (c) 2010, 2011, 2014-2016 Antoine Jacoutot <ajacoutot@openbsd.org>
# Copyright (c) 2010, 2011 Ingo Schwarze <schwarze@openbsd.org>
# Copyright (c) 2010, 2011, 2014 Robert Nagy <robert@openbsd.org>
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
_rc_actions="start stop restart reload check"
readonly _rc_actions
_rc_err() {
[ -n "${1}" ] && echo "${1}" 1>&2
[ -n "${2}" ] && exit "${2}" || exit 1
}
_rc_not_supported() {
local _a _enotsup _what=${1}
for _a in ${_rc_actions}; do
[ "${_what}" == "restart" ] && _what="stop"
if [ "${_what}" == "${_a}" ]; then
eval _enotsup=\${rc_${_what}}
break
fi
done
[ X"${_enotsup}" == X"NO" ]
}
_rc_usage() {
local _a _allsup
for _a in ${_rc_actions}; do
_rc_not_supported ${_a} || _allsup="${_allsup:+$_allsup|}${_a}"
done
_rc_err "usage: $0 [-df] ${_allsup}"
}
_rc_write_runfile() {
[ -d ${_RC_RUNDIR} ] || mkdir -p ${_RC_RUNDIR} && \
cat >${_RC_RUNFILE} <<EOF
daemon_class=${daemon_class}
daemon_flags=${daemon_flags}
daemon_rtable=${daemon_rtable}
daemon_timeout=${daemon_timeout}
daemon_user=${daemon_user}
pexp=${pexp}
EOF
}
_rc_rm_runfile() {
rm -f ${_RC_RUNFILE}
}
_rc_check_name() {
[[ $1 == +([_[:alpha:]])+(|[_[:alnum:]]) ]]
}
_rc_do() {
if [ -n "${_RC_DEBUG}" ]; then
echo "doing $@" && "$@"
else
"$@" >/dev/null 2>&1
fi
}
_rc_exit() {
local _pfix
[ -z "${INRC}" -o X"$1" != X"ok" ] && _pfix="($1)"
echo ${INRC:+'-n'} "${_pfix}"
[ X"$1" = X"ok" ] && exit 0 || exit 1
}
_rc_wait() {
local _i=0
while [ $_i -lt ${daemon_timeout} ]; do
case "$1" in
reload|start)
_rc_do rc_check && return 0 ;;
stop)
_rc_do rc_check || return 0 ;;
*)
break ;;
esac
sleep 1
_i=$((_i+1))
done
return 1
}
_rc_quirks() {
# special care needed for spamlogd to avoid starting it up and failing
# all the time
if [ X"${spamd_flags}" = X"NO" -o X"${spamd_black}" != X"NO" ]; then
spamlogd_flags=NO
fi
# special care needed for pflogd to avoid starting it up and failing
# if pf is not enabled
if [ X"${pf}" = X"NO" ]; then
pflogd_flags=NO
fi
# special care needed if nfs_server=YES to startup nfsd and mountd with
# sane default flags
if [ X"${nfs_server}" = X"YES" ]; then
[ X"${nfsd_flags}" = X"NO" ] && nfsd_flags="-tun 4"
[ X"${mountd_flags}" = X"NO" ] && mountd_flags=
fi
# in case domainname is set and /var/yp/binding exists enable ypbind
if [ X"`domainname`" != X"" -a -d /var/yp/binding ]; then
ypbind_flags=
fi
}
_rc_parse_conf() {
typeset -l _key
local _l _rcfile _val
set -A _allowed_keys -- \
accounting amd_master check_quotas ipsec multicast nfs_server \
pexp pf pkg_scripts shlib_dirs spamd_black
[ $# -gt 0 ] || set -- /etc/rc.conf /etc/rc.conf.local
for _rcfile; do
[[ -f $_rcfile ]] || continue
while IFS=' ' read -r _l; do
[[ $_l == [!#=]*=* ]] || continue
_key=${_l%%*([[:blank:]])=*}
[[ $_key == *_@(flags|rtable|user|timeout) ]] || \
[[ " ${_allowed_keys[*]} " == *" $_key "* ]] || \
continue
[[ $_key == "" ]] && continue
_val=${_l##*([!=])=*([[:blank:]])}
_val=${_val%%#*}
_val=${_val%%*([[:blank:]])}
# remove leading and trailing quotes (backwards compat)
[[ $_val == @(\"*\"|\'*\') ]] && _val=${_val#?} _val=${_val%?}
eval "${_key}=\${_val}"
done < $_rcfile
done
_rc_do _rc_quirks
}
# return if we only want internal functions
[ -n "${FUNCS_ONLY}" ] && return
rc_start() {
${rcexec} "${daemon} ${daemon_flags} ${_bg}"
}
rc_check() {
pgrep -T "${daemon_rtable}" -q -xf "${pexp}"
}
rc_reload() {
pkill -HUP -T "${daemon_rtable}" -xf "${pexp}"
}
rc_stop() {
pkill -T "${daemon_rtable}" -xf "${pexp}"
}
rc_cmd() {
local _bg _n
[ -n "${1}" ] && echo "${_rc_actions}" | grep -qw -- ${1} || _rc_usage
[ "$(id -u)" -eq 0 ] || \
[ X"${rc_usercheck}" != X"NO" -a X"$1" = "Xcheck" ] || \
_rc_err "$0: need root privileges"
if _rc_not_supported $1; then
[ -n "${INRC}" ] && exit 1
_rc_err "$0: $1 is not supported"
fi
[ X"${rc_bg}" = X"YES" ] && _bg="&"
[ -n "${_RC_DEBUG}" ] || _n="-n"
_rc_do _rc_parse_conf ${_RC_RUNFILE}
case "$1" in
check)
echo $_n "${INRC:+ }${_name}"
_rc_do rc_check && _rc_exit ok
_rc_exit failed
;;
start)
if [ X"${daemon_flags}" = X"NO" ]; then
_rc_err "$0: need -f to force $1 since ${_name}_flags=NO"
fi
[ -z "${INRC}" ] && _rc_do rc_check && exit 0
echo $_n "${INRC:+ }${_name}"
while true; do # no real loop, only needed to break
if type rc_pre >/dev/null; then
_rc_do rc_pre || break
fi
_rc_do rc_start || break
_rc_do _rc_wait start || break
_rc_do _rc_write_runfile
_rc_exit ok
done
# handle failure
type rc_post >/dev/null && _rc_do rc_post
_rc_do _rc_rm_runfile
_rc_exit failed
;;
stop)
_rc_do rc_check || exit 0
echo $_n "${INRC:+ }${_name}"
_rc_do rc_stop || _rc_exit failed
_rc_do _rc_wait stop || _rc_exit failed
if type rc_post >/dev/null; then \
_rc_do rc_post || _rc_exit failed
fi
_rc_do _rc_rm_runfile
_rc_exit ok
;;
reload)
echo $_n "${INRC:+ }${_name}"
_rc_do rc_check && _rc_do rc_reload || _rc_exit failed
_rc_do _rc_wait reload || _rc_exit failed
_rc_exit ok
;;
restart)
$0 ${_RC_DEBUG} ${_RC_FORCE} stop && \
$0 ${_RC_DEBUG} ${_RC_FORCE} start
;;
*)
_rc_usage
;;
esac
}
_name=$(basename $0)
_rc_check_name "${_name}" || _rc_err "invalid rc.d script name: ${_name}"
[ -n "${daemon}" ] || _rc_err "$0: daemon is not set"
unset _RC_DEBUG _RC_FORCE
while getopts "df" c; do
case "$c" in
d) _RC_DEBUG=-d;;
f) _RC_FORCE=-f;;
*) _rc_usage;;
esac
done
shift $((OPTIND-1))
_RC_RUNDIR=/var/run/rc.d
_RC_RUNFILE=${_RC_RUNDIR}/${_name}
# parse /etc/rc.conf{.local} for the daemon_flags
_rc_do _rc_parse_conf
eval _rcflags=\${${_name}_flags}
eval _rcrtable=\${${_name}_rtable}
eval _rcuser=\${${_name}_user}
eval _rctimeout=\${${_name}_timeout}
# set default values; duplicated in rcctl(8)
getcap -f /etc/login.conf ${_name} 1>/dev/null 2>&1 && \
daemon_class=${_name} || daemon_class=daemon
[ -z "${daemon_rtable}" ] && daemon_rtable=0
[ -z "${daemon_user}" ] && daemon_user=root
[ -z "${daemon_timeout}" ] && daemon_timeout=30
# use flags from the rc.d script if daemon is not enabled
[ -n "${_RC_FORCE}" -o "$1" != "start" ] && [ X"${_rcflags}" = X"NO" ] && \
unset _rcflags
[ -n "${_rcflags}" ] && daemon_flags=${_rcflags}
[ -n "${_rcrtable}" ] && daemon_rtable=${_rcrtable}
[ -n "${_rcuser}" ] && daemon_user=${_rcuser}
[ -n "${_rctimeout}" ] && daemon_timeout=${_rctimeout}
if [ -n "${_RC_DEBUG}" ]; then
echo -n "${_name}_flags "
[ -n "${_rcflags}" ] || echo -n "empty, using default "
echo ">${daemon_flags}<"
fi
readonly daemon_class
unset _rcflags _rcrtable _rcuser _rctimeout
pexp="${daemon}${daemon_flags:+ ${daemon_flags}}"
rcexec="su -l -c ${daemon_class} -s /bin/sh ${daemon_user} -c"
[ "${daemon_rtable}" -eq 0 ] || \
rcexec="route -T ${daemon_rtable} exec ${rcexec}"
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