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- # $OpenBSD: rc.subr,v 1.70 2013/07/11 09:34:33 otto 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_is_supported() {
- local _enotsup
- eval _enotsup=\${rc_$1}
- [ X"${_enotsup}" != X"NO" ]
- }
- rc_usage() {
- local _a _allsup
- for _a in start stop restart reload check; do
- rc_is_supported ${_a} && _allsup="${_allsup:+$_allsup|}${_a}"
- done
- rc_err "usage: $0 [-df] (${_allsup})"
- }
- 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() {
- rm -f ${_RC_RUNFILE}
- }
- rc_start() {
- ${rcexec} "${daemon} ${daemon_flags} ${_bg}"
- }
- rc_check() {
- pgrep -q -f "^${pexp}"
- }
- rc_reload() {
- pkill -HUP -f "^${pexp}"
- }
- rc_stop() {
- pkill -f "^${pexp}"
- }
- rc_do() {
- if [ -n "${_RC_DEBUG}" ]; then
- echo "doing $@" && "$@"
- else
- "$@" >/dev/null 2>&1
- fi
- }
- rc_exit() {
- local _pfix
- [ -z "${INRC}" -o X"$1" != X"ok" ] && _pfix="($1)"
- echo ${INRC:+'-n'} "${_pfix}"
- [ X"$1" = X"ok" ] && exit 0 || exit 1
- }
- rc_wait() {
- local _i=0 _w=${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 ! (rc_is_supported start && rc_is_supported stop); then
- rc_restart=NO
- fi
- if ! rc_is_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_read_runfile
- case "$1" in
- check)
- rc_do rc_check
- ;;
- start)
- if [ X"${daemon_flags}" = X"NO" ]; then
- rc_err "$0: need -f to force $1 since ${_name}_flags=NO"
- exit 1
- fi
- [ -z "${INRC}" ] && rc_do rc_check && exit 0
- echo $_n "${INRC:+ }${_name}"
- while true; do # no real loop, only needed to break
- if type rc_pre >/dev/null; then
- rc_do rc_pre || break
- fi
- # XXX only checks the status of the return code,
- # and _not_ that the daemon is actually running
- rc_do rc_start || break
- if [ -n "${_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)
- $0 ${_RC_DEBUG} ${_RC_FORCE} stop &&
- $0 ${_RC_DEBUG} ${_RC_FORCE} start
- ;;
- *)
- rc_usage
- ;;
- esac
- }
- . /etc/rc.conf
- [ -n "${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}
- # sanitize
- daemon_flags=$(printf ' %s' ${daemon_flags})
- daemon_flags=${daemon_flags## }
- readonly daemon_class
- unset _rcflags _rcuser
- pexp="${daemon}${daemon_flags:+ ${daemon_flags}}"
- rcexec="su -l -c ${daemon_class} -s /bin/bak_sh ${daemon_user} -c"
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免费注册
发表于 2014-05-21 12:49
真心不知道你替换sh有什么目的。。哇哈哈。。