done
}
+# inner function used by daemon().
+# do not call this directly, as it expects variables being inherited.
+# also it expects to be called from subshell as it exports env.
+# it expects options parsed by daemon() and command to be executed in "$@".
+_daemon_exec() {
+ local prog=""
+ umask ${SERVICE_UMASK:-$DEFAULT_SERVICE_UMASK};
+ export USER=root HOME=/tmp TMPDIR=/tmp
+
+ nice=${nice:-$DEFAULT_SERVICE_RUN_NICE_LEVEL}
+ nice=${nice:-0}
+
+ # make nice level absolute, not to be dependant of nice level of shell where service started
+ nice=$(($nice - $(nice)))
+
+ if [ "$closefds" = 1 ]; then
+ exec 1>&-
+ exec 2>&-
+ exec 0<&-
+ elif [ "$redirfds" = 1 ]; then
+ exec 1>/dev/null
+ exec 2>/dev/null
+ exec 0</dev/null
+ else
+ exec 2>&1
+ exec 0</dev/null
+ fi
+
+ if is_no "$RC_LOGGING"; then
+ prog=$1; shift
+ if [ ! -x $prog ]; then
+ logger -t rc-scripts -p daemon.debug "daemon: Searching PATH for $prog, consider using full path in initscript"
+ local a o=$IFS
+ IFS=:
+ for a in $PATH; do
+ if [ -x $a/$prog ]; then
+ prog=$a/$prog
+ break
+ fi
+ done
+ IFS=$o
+ fi
+ set -- "$prog" "$@"
+
+ # use setsid to detach from terminal,
+ # NOTE: setsid needs to be "outer" program
+ # otherwise start-stop-daemon would capture the setsid pid not the actual program
+
+ prog=$1; shift
+ /usr/bin/setsid \
+ /sbin/start-stop-daemon -q --start \
+ --nicelevel $nice \
+ ${pidfile:+--pidfile $pidfile} \
+ ${makepid:+--make-pidfile} \
+ ${user:+--chuid $user} \
+ ${chdir:+--chdir "$chdir"} \
+ ${fork:+--background} \
+ ${SERVICE_DROPCAPS:+--dropcap $SERVICE_DROPCAPS} \
+ --exec "$prog" \
+ -- "$@"
+ else
+ if [ "$fork" = "1" ]; then
+ export PIDFILE="/dev/null"
+ if [ "$makepid" ] && [ "$pidfile" ]; then
+ export PIDFILE="$pidfile"
+ fi
+ set -- /lib/rc-scripts/makepid "$@"
+ set -- /usr/bin/setsid "$@"
+ fi
+ if [ -n "$user" -a "$user" != "root" ]; then
+ set -- /bin/runuser -u "$user" -- "$@"
+ fi
+
+ nice -n $nice initlog -c "$*" 2>&1 </dev/null
+ fi
+}
+
# A function to start a program (now it's useful on read-only filesystem too)
daemon() {
- local errors="" prog="" end="" waitname="" waittime=0
+ local errors="" waitname="" waittime=0
local exit_code=0
local nice=$SERVICE_RUN_NICE_LEVEL
local fork user closefds redirfds pidfile makepid chdir=/
- # NOTE: if you wonder how the shellish (by syntax) $prog works in ssd mode,
- # then the answer is: it totally ignores $prog and uses "$@" itself.
-
while [ $# -gt 0 ]; do
case $1 in
'')
;;
--fork)
fork=1
- end='&'
;;
--chdir)
shift
;;
--makepid)
makepid=1
+ # makepid implies fork
+ fork=1
;;
-*|+*)
nice=$1
esac
shift
done
- if [ -n "$user" -a "$user" != "root" ]; then
- prog="/bin/su $user -s /bin/sh -c \""
- fi
- if [ "$fork" = "1" ]; then
- prog="/usr/bin/setsid ${prog:-sh -c \"}"
- fi
- # If command to execute ends with quotation mark, add remaining
- # arguments and close quotation.
- if [ "$prog" != "${prog%\"}" ]; then
- prog="$prog $*$end\""
- else
- prog="$prog $*$end"
- fi
_daemon_set_ulimits
busy
cd $chdir
[ -n "$SERVICE_CPUSET" ] && is_yes "$CPUSETS" && echo $$ > "/dev/cpuset/${SERVICE_CPUSET}/tasks"
- if errors=$(
- umask ${SERVICE_UMASK:-$DEFAULT_SERVICE_UMASK};
- export USER=root HOME=/tmp TMPDIR=/tmp
-
- nice=${nice:-$DEFAULT_SERVICE_RUN_NICE_LEVEL}
- nice=${nice:-0}
-
- # make nice level absolute, not to be dependant of nice level of shell where service started
- nice=$(($nice - $(nice)))
-
- if [ "$closefds" = 1 ]; then
- exec 1>&-
- exec 2>&-
- exec 0<&-
- elif [ "$redirfds" = 1 ]; then
- exec 1>/dev/null
- exec 2>/dev/null
- exec 0</dev/null
- else
- exec 2>&1
- exec 0</dev/null
- fi
-
- if is_no "$RC_LOGGING"; then
- prog=$1; shift
- if [ ! -x $prog ]; then
- logger -t rc-scripts -p daemon.debug "daemon: Searching PATH for $prog, consider using full path in initscript"
- local a o=$IFS
- IFS=:
- for a in $PATH; do
- if [ -x $a/$prog ]; then
- prog=$a/$prog
- break
- fi
- done
- IFS=$o
- fi
- set -- "$prog" "$@"
-
- # use setsid to detach from terminal,
- # needs pidfile or ssd would check setsid program instead of real program
- if [ "$pidfile" ]; then
- set -- /usr/bin/setsid "$@"
- fi
-
- prog=$1; shift
- /sbin/start-stop-daemon -q --start \
- --nicelevel $nice \
- ${pidfile:+--pidfile $pidfile} \
- ${makepid:+--make-pidfile} \
- ${user:+--chuid $user} \
- ${chdir:+--chdir "$chdir"} \
- ${fork:+--background} \
- ${SERVICE_DROPCAPS:+--dropcap $SERVICE_DROPCAPS} \
- --exec "$prog" \
- -- "$@"
- else
- nice -n $nice initlog -c "$prog" 2>&1 </dev/null
- fi
- ); then
-
+ if errors=$(_daemon_exec "$@"); then
# wait for process (or pidfile) to be created
if [ "$waittime" -gt 0 ]; then
# waitname can be empty, as if pidfile is in use, it is not relevant
fi
# Next try "pidof" if pidfile is not specified
- if [ -z "$pid" ] && [ -z "$pidfile" ]; then
+ if [ -z "$pid" ] && [ -z "$2" ]; then
pid=$(pidof -o $$ -o $PPID -o %PPID -x "$1")
fi
TLD / rc-scripts.git / blobdiff