net/smtptrapd/files/smtptrapd.init

   1 #!/bin/sh /etc/rc.common
   2 # Copyright (C) 2008 OpenWrt.org
   3
   4 START=90
   5
   6 NAME="smtptrapd"
   7 DAEMON="/usr/sbin/$NAME"
   8 RUN_D="/var/run"
   9
  10 EXTRA_COMMANDS="list status exconf"
  11 EXTRA_HELP="    list    Lists available configurations
  12         status  Prints status of the service
  13         exconf  Shows an example config file
  14
  15 The actions start, stop, restart, reload, status operate
  16 globally on all configurations unless the particular
  17 configuration has been provided as the next parameter.
  18 "
  19
  20 check_req() {
  21         if [ -x "$DAEMON" ]; then
  22                 return 0
  23         else
  24                 echo "The daemon binary is missing!"
  25                 return 1
  26         fi
  27 }
  28
  29 check_section() {
  30         echo "$1" | grep -vq '^cfg[[:xdigit:]]\{6\}$'
  31 }
  32
  33 start_service() {
  34         local cfg="$1"
  35         local named="$2"
  36         check_section "$cfg" || return 1
  37         [ "$named" != "" -a "$cfg" != "$named" ] && return 0
  38         local args listen_ip banner_host username num_threads listen_port accept_queue_len
  39         config_get listen_ip "$cfg" listen_ip
  40         [ -n "$listen_ip" ] && append args "-l $listen_ip"
  41         config_get listen_port "$cfg" listen_port
  42         [ -n "$listen_port" ] && append args "-p $listen_port"
  43         config_get username "$cfg" username
  44         [ -n "$username" ] && append args "-u $username"
  45         config_get banner_host "$cfg" banner_host
  46         [ -n "$banner_host" ] && append args "-b \"$banner_host\""
  47         config_get num_threads "$cfg" num_threads
  48         [ -n "$num_threads" ] && append args "-t $num_threads"
  49         config_get accept_queue_len "$cfg" accept_queue_len
  50         [ -n "$accept_queue_len" ] && append args "-m $accept_queue_len"
  51         append args "-f ${RUN_D}/${NAME}-${cfg}.pid"
  52         eval "$DAEMON $args"
  53 }
  54
  55 stop_service() {
  56         local cfg="$1"
  57         local named="$2"
  58         check_section "$cfg" || return 1
  59         [ "$named" != "" -a "$cfg" != "$named" ] && return 0
  60         local PID_F="${RUN_D}/${NAME}-${cfg}.pid"
  61         [ -f $PID_F ] && {
  62                 local ppid=$(cat $PID_F)
  63                 ps | grep "^[[:space:]]*$ppid[[:space:]]" | grep -q "[s]mtptrapd\>" && kill $ppid
  64                 rm -f $PID_F
  65         }
  66 }
  67
  68 status_service() {
  69         local cfg="$1"
  70         local named="$2"
  71         check_section "$cfg" || return 1
  72         [ "$named" != "" -a "$cfg" != "$named" ] && return 0
  73         local PID_F="${RUN_D}/${NAME}-${cfg}.pid"
  74         [ -f $PID_F ] && {
  75                 local ppid=$(cat $PID_F)
  76                 if ps | grep "^[[:space:]]*$ppid[[:space:]]" | grep -q "[s]mtptrapd\>"; then
  77                         echo "$cfg (pid $ppid) is running"
  78                 else
  79                         echo "$cfg is not running (stale pid file exists)"
  80                 fi
  81         }
  82 }
  83
  84 list_service() {
  85         local cfg="$1"
  86         check_section "$cfg" || return 1
  87         echo "  $cfg"
  88 }
  89
  90 start() {
  91         local svc_cfg="$1"
  92         check_req || return 1
  93         [ ! -d $RUN_D ] && mkdir -p $RUN_D
  94         config_load "$NAME"
  95         config_foreach start_service "$NAME" "$svc_cfg"
  96 }
  97
  98 stop() {
  99         local svc_cfg="$1"
 100         check_req || return 1
 101         config_load "/etc/config/$NAME"
 102         if [ -n "$svc_cfg" ]; then
 103                 config_foreach stop_service "$NAME" "$svc_cfg"
 104         else
 105                 config_foreach stop_service "$NAME"
 106                 local pf
 107                 for pf in $(ls ${RUN_D}/${NAME}*.pid 2>/dev/null); do
 108                         local ppid=$(cat $pf)
 109                         ps | grep "^[[:space:]]*$ppid[[:space:]]" | grep -q "[s]mtptrapd\>" && kill "$ppid"
 110                         rm -f $pf
 111                 done
 112         fi
 113 }
 114
 115 status() {
 116         local svc_cfg="$1"
 117         check_req || return 1
 118         config_load "$NAME"
 119         config_foreach status_service "$NAME" "$svc_cfg"
 120 }
 121
 122 list() {
 123         check_req || return 1
 124         echo "Available $NAME configurations:"
 125         config_load "$NAME"
 126         config_foreach list_service "$NAME"
 127 }
 128
 129 exconf() {
 130         echo "An example configuration in /etc/config/$NAME:" >&2
 131         cat <<EOF
 132 config '$NAME' 'myfailhost'
 133         option 'num_threads' '1'
 134
 135 # The init script operates only with named sections
 136 # All options (default values)
 137 #       option 'banner_host' '<hostname>'
 138 #       option 'username' 'nobody'
 139 #       option 'listen_ip' '<all addresses>'
 140 #       option 'listen_port' '25'
 141 #       option 'num_threads' '10'
 142 #       option 'accept_queue_len' '100'
 143 EOF
 144 }