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# $OpenBSD: rc.subr,v 1.59 2012/08/04 15:30:25 ajacoutot Exp $
#
# Copyright (c) 2010, 2011 Antoine Jacoutot <ajacoutot@openbsd.org>
# Copyright (c) 2010, 2011 Ingo Schwarze <schwarze@openbsd.org>
# Copyright (c) 2010, 2011 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.
# Default functions and variables used by rc.d(8) scripts.
rc_err() {
echo $1 1>&2
exit 1
}
rc_usage() {
rc_err "usage: $0 [-df] {start|check|reload|restart|stop}"
}
rc_write_runfile() {
[ -d ${_RC_RUNDIR} ] || mkdir -p ${_RC_RUNDIR} && \
print -rn -- "${pexp}" > ${_RC_RUNFILE}
}
rc_read_runfile() {
local _new_pexp
[ -f ${_RC_RUNFILE} ] && _new_pexp=$(< ${_RC_RUNFILE})
[ -n "${_new_pexp}" ] && pexp="${_new_pexp}"
}
rc_rm_runfile() {
[ -f ${_RC_RUNFILE} ] && rm -f ${_RC_RUNFILE}
}
rc_start() {
${rcexec} "${daemon} ${daemon_flags} ${_bg}"
}
rc_check() {
pgrep -f "^${pexp}" >/dev/null
}
rc_reload() {
pkill -HUP -f "^${pexp}"
}
rc_stop() {
pkill -f "^${pexp}"
}
rc_do() {
if [ -n "${_RC_DEBUG}" ]; then
echo "doing $@" && "$@"
else
"$@" >/dev/null 2>&1
fi
}
rc_exit() {
[ -z "${INRC}" -o X"$1" != X"ok" ] && _pfix="($1)"
echo ${INRC:+'-n'} "${_pfix}"
[ X"$1" = X"ok" ] && exit 0 || exit 1
}
rc_wait() {
local _i=0 _w=${2:-30}
while [ $_i -lt $_w ]; 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_cmd() {
local _bg _n
[ "$(id -u)" -eq 0 ] || \
[ X"${rc_usercheck}" != X"NO" -a X"$1" = "Xcheck" ] || \
rc_err "$0: need root privileges"
if [ -z "${_RC_FORCE}" ] && [ X"${daemon_flags}" = X"NO" ]
then
if [ -n "${_RC_DEBUG}" ]
then
rc_err "$0: no $1 without -f, ${_name}_flags=NO"
fi
exit 1
fi
eval _enotsup=\${rc_${1}}
[ X"${_enotsup}" != X"NO" ] || rc_err "$0: $1 is not supported"
[ X"${rc_bg}" = X"YES" ] && _bg="&"
[ -n "${_RC_DEBUG}" ] || _n="-n"
rc_do rc_read_runfile
case "$1" in
check)
rc_do rc_check
;;
start)
[ -z "${INRC}" ] && rc_do rc_check && exit 0
echo $_n "${INRC:+ }${_name}"
while true; do # no real loop, only needed to break
if type rc_pre >/dev/null; then
rc_do rc_pre || break
fi
# XXX only checks the status of the return code,
# and _not_ that the daemon is actually running
rc_do rc_start || break
if [ -n "${_bg}" ]; then
sleep 1
rc_do rc_wait start || break
fi
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)
rc_do rc_check || exit 0
echo $_n "${INRC:+ }${_name}"
rc_do rc_reload || rc_exit failed
rc_do rc_wait reload || rc_exit failed
rc_exit ok
;;
restart)
/etc/rc.d/${_name} ${_RC_DEBUG} ${_RC_FORCE} stop &&
/etc/rc.d/${_name} ${_RC_DEBUG} ${_RC_FORCE} start
;;
*)
rc_usage
;;
esac
}
[ -z "${local_rcconf}" ] && . /etc/rc.conf
[ -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 $((OPTIND-1))
_name=$(basename $0)
_RC_RUNDIR=/var/run/rc.d
_RC_RUNFILE=${_RC_RUNDIR}/${_name}
eval _rcflags=\${${_name}_flags}
eval _rcuser=\${${_name}_user}
getcap -f /etc/login.conf ${_name} 1>/dev/null 2>&1 && \
daemon_class=${_name}
[ -z "${daemon_class}" ] && daemon_class=daemon
[ -z "${daemon_user}" ] && daemon_user=root
[ -n "${_RC_FORCE}" ] && [ X"${_rcflags}" = X"NO" ] && unset _rcflags
[ -n "${_rcflags}" ] && daemon_flags=${_rcflags}
[ -n "${_rcuser}" ] && daemon_user=${_rcuser}
daemon_flags=$(printf ' %s' ${daemon_flags})
daemon_flags=${daemon_flags## }
pexp="${daemon}${daemon_flags:+ ${daemon_flags}}"
rcexec="su -l -c ${daemon_class} -s /bin/sh ${daemon_user} -c"
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