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发表于 2005-11-18 18:49:01
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看了这个脚本的说明
个人觉得不行
/etc/init.d/fetchmail
- #!/bin/sh
- #
- # Fetchmail init script
- # Latest change: Do Jun 23 16:59:08 CEST 2005
- #
- # A fetchmailrc file containg hosts and passwords for all local users should be
- # placed in /etc/fetchmailrc. Remember to make the /etc/fetchmailrc mode 600
- # to avoid disclosing the users' passwords.
- #
- # This script will NOT start or stop fetchmail if the /etc/fetchmailrc file
- # does not exist.
- #
- set -e
- if [ ! -e /etc/fetchmailrc ]; then
- exit 0
- fi
- # Defaults
- PATH=/sbin:/bin:/usr/sbin:/usr/bin
- DAEMON=/usr/bin/fetchmail
- USER=fetchmail
- CONFFILE=/etc/fetchmailrc
- OPTIONS="-f $CONFFILE"
- PIDFILE="`getent passwd $USER | awk -F: '{ print $6 }'`/.fetchmail.pid"
- UIDL=/var/mail/.fetchmail-UIDL-cache
- test -f $DAEMON || exit 0
- if [ "$1" = "start" ]; then
- if [ ! -r $CONFFILE ] ; then
- echo "$CONFFILE not found."
- echo "can not start fetchmail daemon... consider disabling the script"
- exit 0
- fi
- fi
- # sanity checks (saves on MY sanity :-P )
- if ! id $USER >/dev/null 2>&1; then
- if [ "$USER" = "fetchmail" ]; then
- # The fetchmail user might have been removed when the fetchmail-common
- # package is purged. We have to re-add it here so the system-wide
- # daemon will run.
- adduser --system --ingroup nogroup --home /var/run/fetchmail \
- --shell /bin/sh --disabled-password fetchmail >/dev/null 2>&1 || true
- # work around possible adduser bug, see #119366
- [ -d /var/run/fetchmail ] || mkdir -p /var/run/fetchmail
- chmod 700 /var/run/fetchmail
- chown -h -R fetchmail:nogroup /var/run/fetchmail
- else
- echo "$0: $USER user does not exist!"
- exit 1
- fi
- fi
- # add daemon option if user hasn't already specified it
- if ! grep -qs '^[[:space:]]*set[[:space:]]\+daemon[[:space:]]' "$CONFFILE"; then
- OPTIONS="$OPTIONS -d 300"
- fi
- # add syslog option if user hasn't already specified it
- if ! grep -qs '^[[:space:]]*set[[:space:]]\+no[[:space:]]\+syslog' "$CONFFILE"; then
- OPTIONS="$OPTIONS --syslog"
- fi
- # support for ephemeral /var/run
- if [ "${PIDFILE%/*}" = "/var/run/fetchmail" ] && [ ! -d ${PIDFILE%/*} ]; then
- mkdir /var/run/fetchmail
- chown -h $USER:nogroup /var/run/fetchmail
- chmod 700 /var/run/fetchmail
- fi
- # sanity check
- if [ ! -d ${PIDFILE%/*} ]; then
- echo "$0: directory ${PIDFILE%/*} does not exist!"
- exit 1
- fi
- # If the user is going to use a UIDL cache, try to find a better place for the
- # UIDL cache than root's homedir. Also create $UIDL if it doesn't exist,
- # because the daemon won't have the permission.
- if ! grep -qs idfile "$CONFFILE" && [ -d /var/mail ]; then
- OPTIONS="$OPTIONS -i $UIDL"
- touch $UIDL
- chown -h $USER $UIDL
- chmod 0600 $UIDL
- fi
- # Makes sure certain files/directories have the proper owner
- if [ "`stat -c '%U %a' $CONFFILE 2>/dev/null`" != "$USER 600" ]; then
- chown -h $USER $CONFFILE
- chmod -f 0600 $CONFFILE
- fi
- case "$1" in
- start)
- if test -e $PIDFILE ; then
- pid=`cat $PIDFILE | sed -e 's/\s.*//'`
- if kill -0 $pid ; then
- echo "Fetchmail already running with pid $pid (or stale pidfile)."
- exit 0
- fi
- fi
- echo -n "Starting mail retrieval agent: fetchmail"
- if start-stop-daemon -S -o -q -p $PIDFILE -x $DAEMON -u $USER -a /bin/su -- -c "$DAEMON $OPTIONS" $USER; then
- echo "."
- else
- echo " (failed)."
- exit 1
- fi
- ;;
- stop)
- if ! test -e $PIDFILE ; then
- echo "Pidfile not found! Is fetchmail running?"
- exit 0
- fi
- echo -n "Stopping mail retrieval agent: fetchmail"
- if start-stop-daemon -K -o -q -p $PIDFILE -x $DAEMON -u $USER; then
- echo "."
- else
- echo " (failed)."
- exit 1
- fi
- ;;
- force-reload|restart)
- echo -n "Restarting mail retrieval agent: fetchmail"
- if ! start-stop-daemon -K -o -q -p $PIDFILE -x $DAEMON -u $USER; then
- echo " (failed on stop)."
- exit 1
- fi
- sleep 1
- if start-stop-daemon -S -q -p $PIDFILE -x $DAEMON -u $USER -a /bin/su -- -c "$DAEMON $OPTIONS" $USER; then
- echo "."
- else
- echo " (failed on start)."
- exit 1
- fi
- ;;
- try-restart)
- if start-stop-daemon -S -t -q -p $PIDFILE -x $DAEMON -u $USER >/dev/null; then
- exit 0
- fi
- $0 restart
- ;;
- awaken)
- echo -n "Awakening mail retrieval agent: fetchmail"
- if [ -r $PIDFILE ]; then
- su -c $DAEMON $USER <&- >/dev/null 2>&1
- echo "."
- exit 0
- else
- echo " (not running)."
- exit 1
- fi
- ;;
- debug-run)
- echo "$0: Initiating debug run of system-wide fetchmail service..." 1>&2
- echo "$0: script will be run in debug mode, all output to forced to" 1>&2
- echo "$0: stdout. This is not enough to debug failures that only" 1>&2
- echo "$0: happen in daemon mode." 1>&2
- echo "$0: You might want to direct output to a file, and tail -f it." 1>&2
- if [ "$2" = "strace" ]; then
- echo "$0: (running debug mode under strace. See strace(1) for options)" 1>&2
- echo "$0: WARNING: strace output may contain security-sensitive info, such as" 1>&2
- echo "$0: passwords; please clobber them before sending the strace file to a" 1>&2
- echo "$0: public bug tracking system, such as Debian's." 1>&2
- fi
- echo "$0: Stopping the service..." 1>&2
- "$0" stop
- echo "$0: exit status of service stop was: $?"
- echo "$0: RUNUSER is $USER"
- echo "$0: OPTIONS would be $OPTIONS"
- echo "$0: Starting service in nodetach mode, hit ^C (SIGINT/intr) to finish run..." 1>&2
- if [ "$2" = "strace" ] ; then
- shift
- shift
- [ $# -ne 0 ] && echo "$0: (strace options are: -tt $@)" 1>&2
- su -c "/usr/bin/strace -tt $@ $DAEMON $OPTIONS --nosyslog --nodetach -v -v" $USER <&- 2>&1 && true
- else
- su -c "$DAEMON $OPTIONS --nosyslog --nodetach -v -v" $USER <&- 2>&1 && true
- fi
- echo "$0: End of service run. Exit status was: $?"
- exit 0
- ;;
- *)
- echo "Usage: /etc/init.d/fetchmail {start|stop|restart|force-reload|awaken|debug-run}"
- echo " start - starts system-wide fetchmail service"
- echo " stop - stops system-wide fetchmail service"
- echo " restart, force-reload - starts a new system-wide fetchmail service"
- echo " awaken - tell system-wide fetchmail to start a poll cycle immediately"
- echo " debug-run [strace [strace options...]] - start a debug run of the"
- echo " system-wide fetchmail service, optionally running it under strace"
- exit 1
- ;;
- esac
- exit 0
- # vim:ts=4:sw=4:
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