#!/bin/sh
#
# ZLOOK:  AUTHOR: "Jr" Spidell      DATE: April 25, 1992
#
# this script will only run properly by root
#       on a zephyr server node
# output: accounts logged into zephyr
#         nodes running a host manager

TEMPFILE=/usr/tmp/zephyr.$$
TEMPFILE2=/usr/tmp/zephyr2.$$
DBFILE=/usr/tmp/zephyr.db       # where zephyrd dumps its data after a kill -FPE

# the next "magic numbers" for the servers come from looking at server.list
# the '1' or '3' corresponds to the position of the server name in the file
# 'server.list'
# NOTE: these numbers will need to be changed if the server.list file gets
# changed.  (server.list resides in the directory /usr/athena/lib/zephyr)
CAP_SERVER="3:"
FRED_SERVER="1:"

# test for root
if test "`whoami`" != root
 then
   echo "you must be root to run this script"
   exit
fi

# test for no options
if test $# -eq 0
then USAGE="yes"
     echo "no options given."
     echo ""
fi

# test for server node
if test -z "`ps aux | grep zephyrd | grep -v grep | awk '{print $2}'`"
 then echo "you must be on a zephyr server (ie cap, fred)"
      exit
fi

# root doesn't have this in its path
path=$PATH
PATH=$path":/usr/local/bin:/bin:"

for argument in $*
do
 case $argument in
  -N)# extract the running host managers
    ZHM=yes
    ;;

  -s)# extract the suns (nodes that use fred as their server )
    FRED=yes
    ;;

  -d)# extract the decs (nodes that use cap as their server )
    CAP=yes
    ;;

  -A)# extract logged in users
     EXTRACT_USERS=yes
     ;;

  -O)# list options
     USAGE=yes
    ;;

  -e)# list exposure values
     EXPO=yes
     ;;

  -g)# list group name
      GRP=yes
     ;;

  -t)# list time user logged in to zephyr
      TME=yes
     ;;

  -n)# list user's node
      NOD=yes
     ;;
                                                            
  -ni)# list user's "world name" or "nickname" ie joe B. Blow
      NIK=yes
     ;;

  -G*)# list users by given group name
      # note -g option does not display along with -G option
      # (sort of redundant don't ya think?)

    if test "$argument" = "-G"
     then echo "you must specify a group for -G option"
          zlook -o
     exit
    fi
    /accts/caspidell/shelldir/zlook -A -g`echo " $* " | sed "s/-G/ /g"` | grep `echo $argument
 | sed "s/-G//"`  | sed "s/`echo $argument| sed "s/-G//g"`//"
  # | awk '{print $1}'
    exit;;

  -s)# subscription information
     # nothing here, yet...
     ;;

  -?)# unknown option
     USAGE="yes"
     echo "unknown option $argument"
     echo ""
    ;;

 esac # end of options
done # end of arguments


#############
# -O option #
#############
if test "$USAGE" = "yes"
then
    echo "zlook [-N] [-d] [-s] [-G<groupname>] [-A] [-t] [-ni] [-n] [-e] [-o]"
    echo ""
    echo "     -N  nodes currently running a zephyr host manager."
    echo "     -d  only decs currently running zhm"
    echo "     -s  only suns currently running zhm"
    echo "     -G<group> users by group name."
    echo "     -A  all users currently logged into zephyr."
    echo "     -g  give user's group association"
    echo "     -t  give time user logged into zephyr."
    echo "     -n  give user's node."
    echo "     -e  give user's exposure level."
    echo "     -ni give user's full name (ie Joe B. Blow)."
    echo "     -O  option descriptions. (this screen)"
    echo ""
    echo " options -t, -n, -e, -ni must be accompanied by -A or -G<group>"
    echo " options -d and -s must be accompanied by -N"
    echo ""
fi

#############
# -N option #
#############
if test "$ZHM" = "yes"
 then

    # this is for all nodes
    SERVER=":"

    # extract only nodes that use cap as their server
    if test "$CAP" = "yes"
    then
       SERVER=$CAP_SERVER
    fi

    # extract only nodes that use fred as their server
    if test "$FRED" = "yes"
    then
       SERVER=$FRED_SERVER
    fi

    # dump the database
    kill -FPE `ps aux | grep zephyrd | grep -v grep | awk '{print $2}'`

    # cross-reference the internet adresses with node names
    for address in `cat /usr/tmp/zephyr.db | grep 131.198 | grep $SERVER | grep -v rockwell |
grep -v SERV | sed "s/\/[0-9]://"`
    do
    ypcat hosts | grep "$address " | awk '{ print $2 }' | sed "s/.cca.cr.rockwell.com//" >> $T
EMPFILE
    done
    cat $TEMPFILE | sort
    rm $TEMPFILE
fi



#############
# -A option #
#############

if test "$EXTRACT_USERS" = "yes"
 then
# dump the database
  kill -FPE `ps aux | grep zephyrd | grep -v grep | awk '{print $2}'`

  for instance in `cat /usr/tmp/zephyr.db | grep @cca.cr.rockwell.com/ | sed "s/ /~/g"`
      do
#------------------
# display user name
#------------------
      PEOPLE=`echo $instance | awk '{FS="@"}{print $1}'`
      echo $instance | awk '{FS="@"}{printf("%-10s", $1)}' >> $TEMPFILE

#---------------------------------
# display group association
#---------------------------------
      if test "$GRP" = "yes"
       then
         GROUP=`ypcat passwd | grep $PEOPLE: | awk '{FS=":"}{print $4}'`
         ypcat group | grep ":$GROUP:" | awk '{FS=":"}{printf("%-9s", $1)}' >> $TEMPFILE
      fi

#--------------------
# display node
#--------------------
      if test "$NOD" = "yes"
       then
       echo $instance | sed "s/.cca.cr.rockwell.com//g" | awk '{FS="/"}{printf("%-8s ",$2)}' >
> $TEMPFILE
      fi

#-----------------------
# display exposure level
#-----------------------
      if test "$EXPO" = "yes"
       then
        echo $instance | awk '{FS="/"}{printf("%s ", $5)}' >> $TEMPFILE
      fi

#-------------
# display time
#-------------
      if test "$TME" = "yes"
       then
       echo $instance | sed "s/~/ /g" | sed "s/:[0-9][0-9] [0-9][0-9][0-9][0-9]//" | awk '{FS=
"/"}{printf("%-10s ",$3)}' >> $TEMPFILE
      fi

#-----------------
# display nickname
#-----------------
      if test "$NIK" = "yes"
       then
       ypcat passwd | grep $PEOPLE: | awk '{FS=":"}{printf("%s ", $5)}' >> $TEMPFILE
      fi
      echo "" >>$TEMPFILE
  done
  cat $TEMPFILE | sort
  rm $TEMPFILE
fi