svtools 0.6-2 / usr / bin / svinfo

#!/bin/sh
#
# svinfo
# Get infos about a supervised process
# Klaus Reimer <k@ailis.de>

TITLE=svinfo
VERSION=0.6
AUTHOR="Klaus Reimer"
EMAIL=k@ailis.de
COPYRIGHT="Copyright (C) 2000-2011 by $AUTHOR"

showHelp() {
  echo "Usage: $TITLE [OPTION]... SERVICE"
  echo "Get infos about a supervised process"
  echo ""
  echo "  -l, --log      Get infos about the attached log process instead of"
  echo "                 the process itself"
  echo "  -w, --when     Output the time when the service was started"
  echo "  -p, --pid      Output the process id of the service (0 if not running)"
  echo "  -s, --state    Return the process state"
  echo "                   0=down and stopped,"
  echo "                   1=up and stopped,"
  echo "                   2=down and started,"
  echo "                   3=up and started"
  echo "  -h, --help     Display help and exit"
  echo "  -V, --version  Display version and exit"
  echo ""
  echo "With this utility you can gather some information about a"
  echo "supervised process. If no parameters are specified this utility"
  echo "prints the status output from svstat."
  echo ""
  echo "Report bugs to $AUTHOR <$EMAIL>"
}

showVersion() {
  echo "$TITLE $VERSION"
  echo ""
  echo "$COPYRIGHT"
  echo "This is free software; you can redistribute it and/or modify it under"
  echo "the terms of the GNU General Public License as published by the Free"
  echo "Software Foundation; either version 2 of the License, or (at your"
  echo "option) any later version."
}

while getopts "lpwshV-:" NAME
do
  case "$NAME" in
    l)
      LOG="1"
      ;;
    p)
      MODE="PID"
      ;;
    w)
      MODE="WHEN"
      ;;
    s)
      MODE="STATE"
      ;;
    h)
      showHelp
      exit 0
      ;;
    V)
      showVersion
      exit 0
      ;;
    -)
      case "$OPTARG" in
        log)
          LOG="1"
          ;;
        pid)
          MODE="PID"
          ;;
        when)
          MODE="WHEN"
          ;;
        state)
          MODE="STATE"
          ;;
        help)
          showHelp
          exit 0
          ;;
        version)
          showVersion
          exit 0
          ;;
        *)
          echo "Unknown option: $OPTARG"
          showHelp
          exit 1
      esac  
      ;;
    *)
      echo "Unknown option: $OPTARG"
      showHelp
      exit 1
  esac
done

shift `expr $OPTIND - 1`
if [ $# -ne 1 ]
then
  showHelp
  exit 1
fi

if ! SVDIR=`svdir 2>&1`
then
  echo "$TITLE: $SVDIR" >&2
  exit 1
fi

SERVICE=$1

svok $SVDIR/$SERVICE || exit 1
if [ "$LOG" = "1" ]
then
  svok $SVDIR/$SERVICE/log || exit 1
fi

case "$MODE" in
  PID)
    if [ "$LOG" = "1" ]
    then
      hexdump -e '"%d\n"' -s 12 -n 4 /$SVDIR/$SERVICE/log/supervise/status
    else
      hexdump -e '"%d\n"' -s 12 -n 4 /$SVDIR/$SERVICE/supervise/status
    fi
    ;;
  WHEN)
    if [ "$LOG" = "1" ]
    then
      hexdump -e '"@" 12 1 "%02x" "\n"' -s 0 -n 12 /$SVDIR/$SERVICE/log/supervise/status | tai64nlocal
    else
      hexdump -e '"@" 12 1 "%02x" "\n"' -s 0 -n 12 /$SVDIR/$SERVICE/supervise/status | tai64nlocal
    fi
    ;;
  STATE)
    if [ "$LOG" = "1" ]
    then
      PID=`hexdump -e '"%d\n"' -s 12 -n 4 /$SVDIR/$SERVICE/log/supervise/status`
      FILE="$SVDIR/$SERVICE/log/down"
    else
      PID=`hexdump -e '"%d\n"' -s 12 -n 4 /$SVDIR/$SERVICE/supervise/status`
      FILE="$SVDIR/$SERVICE/down"
    fi
    if [ -f $FILE ]
    then
      if [ $PID -ne 0 ]
      then
        echo "Service is force-started"
        exit 2
      else
        echo "Service is disabled"
        exit 0
      fi
    else
      if [ $PID -ne 0 ]
      then
        echo "Service is started"
        exit 3
      else
        echo "Service is stopped"
        exit 1
      fi
    fi
    ;;
  *)
    if [ "$LOG" = "1" ]
    then
      svstat $SVDIR/$SERVICE/log
    else
      svstat $SVDIR/$SERVICE
    fi
    ;;
esac

exit 0