Listing 1 entrap

#!/bin/ksh

#****************************************************************
# Listing 1:
# File: entrap
#
# Description:
#
# This script is the driver that calls the other Entrap scripts. 
# Several enviroment variables are set, the existence of important 
# files and directories is verified, and the user is prompted to 
# create certain directories if they do not exist. If an invalid 
# or no operand is supplied, a usage message prints and the program
# terminates.
#
# Author: John Spurgeon (john.p.spurgeon@intel.com)
#
#****************************************************************

# Define ENTRAP to show that we have been here.
export ENTRAP=entrap

# Define TRUE and FALSE.
export TRUE=0
export FALSE=1

# Initialize ERRORS.
ERRORS=$FALSE

# Entrap Directories

ENTRAP_DIR=/opt/entrap/entrap
BIN_DIR=$ENTRAP_DIR/bin
VAR_DIR=$ENTRAP_DIR/var
ETC_DIR=$ENTRAP_DIR/etc
CONFIG_DIR=$ETC_DIR/conf
export FILTER_ROOT=$ETC_DIR/filters
export SNAPSHOT_ROOT=$VAR_DIR/snapshots
export TEMP_DIR=$VAR_DIR/tmp
export CONFIG_NAME=entrap
export CONFIG_FILE=$CONFIG_DIR/$CONFIG_NAME

# Entrap Programs

export COUNT_ADDED=$BIN_DIR/count_added.sh
export LIST_ADDED=$BIN_DIR/list_added.sh
export COUNT_DELETED=$BIN_DIR/count_deleted.sh
export LIST_DELETED=$BIN_DIR/list_deleted.sh
export COUNT_CHANGED=$BIN_DIR/count_changed.sh
export LIST_CHANGED=$BIN_DIR/list_changed.sh
export FILTER=$BIN_DIR/filter.sh
export ATTRIBUTES=$BIN_DIR/attributes.sh
export ENTRAP=$BIN_DIR/entrap

# Valid Entrap Commands

CMD_SNAPSHOT=snapshot
CMD_FILTER=filter
CMD_COMPARE=compare

VALID_COMMANDS="$CMD_SNAPSHOT $CMD_FILTER $CMD_COMPARE"

# Default Values

if ! type ckyorn 2>- >-
then
# For non-Solaris environments, this function emulates the internal ckyorn 
# function.
# optional parameters:
#    d - default value
#    p - user prompt
#    Q - disable q for quit
# return: Y, y, N, N and q, Q if Q option is not disabled.
function ckyorn {
    typeset option=
    typeset default=
    typeset prompt=
    typeset REPLY=
    typeset UREPLY=
    typeset Q=Qq

    while getopts :p:d:Q option
    do
        case $option
        in
            d) default=$OPTARG ;;
            p) prompt=$OPTARG ;;
            Q) typeset Q="" ;;
        esac
    done

    while echo "$prompt\c" 1>&2
    do
        read REPLY
        UREPLY=$REPLY
        case "${UREPLY:=$default}"
        in
            [ynYN$Q]*) break ;;
            *) echo "ERROR: Please enter yes or no." 1>&2 ;;
        esac
    done

    echo "$UREPLY"
}
fi

# Get the options

while getopts c:o: OPTION
do
   case "$OPTION"
   in
      c) CONFIG_NAME=$OPTARG ;;
      \?) exit 1;;
   esac
done

CONFIG_FILE=$CONFIG_DIR/$CONFIG_NAME

shift $(($OPTIND - 1))

# Verify that Entrap directories exist.

for DIR in \
$ENTRAP_DIR \
$BIN_DIR \
$VAR_DIR \
$ETC_DIR \
$TEMP_DIR \
$CONFIG_DIR \
$SNAPSHOT_ROOT \
$FILTER_ROOT
do
   if ! [ -d $DIR ]
   then
      echo "[$(basename $0)] warning: Directory \"$DIR\" does not exist.\c"
      ans=$(ckyorn -d y -p Create?)
      case $ans in
         y* | Y* )
            mkdir $DIR
            if [ -d $DIR ]
            then
               echo "[$(basename $0)] info: Directory \"$DIR\" was created."
            else
               echo "[$(basename $0)] error: Directory \"$DIR\" could not \
                     be created." >& 2
               echo "[$(basename $0)] problem: Directory \"$DIR\" is \
                     required." >& 2
               echo "[$(basename $0)] solution: Create directory \"$DIR\" \
                     or update entrap settings." >& 2
               ERRORS=$TRUE
            fi
            ;;
         * )
            echo "[$(basename $0)] error: Directory \"$DIR\" was not created."
            echo "[$(basename $0)] problem: Directory \"$DIR\" is required." >& 2
            echo "[$(basename $0)] solution: Create directory \"$DIR\" or \
                  update entrap settings." >& 2
            ERRORS=$TRUE
;;
      esac
   fi
done

# Verify that the Entrap program and configuration files exist.

for FILE in \
$CONFIG_FILE \
$COUNT_ADDED \
$LIST_ADDED \
$COUNT_DELETED \
$LIST_DELETED \
$COUNT_CHANGED \
$LIST_CHANGED \
$FILTER \
$ATTRIBUTES \
$ENTRAP \
$BIN_DIR/$CMD_SNAPSHOT \
$BIN_DIR/$CMD_FILTER \
$BIN_DIR/$CMD_COMPARE
do
   if ! [ -f $FILE ]
   then
      echo "[$(basename $0)] error: File \"$FILE\" does not exist." >& 2
      echo "[$(basename $0)] problem: File \"$FILE\" is required." >& 2
      echo "[$(basename $0)] solution: Reinstall the missing file." >& 2
      ERRORS=$TRUE
   fi
done

# Get the operand and options strings.

OPERAND=$1
if [ $# -gt 0 ]
then
   shift
fi
OPTIONS=$@

# Verify that the command is valid.

VERIFIED_OPERAND=$FALSE

if ! [ -z "$OPERAND" ]
then
   for COMMAND in $VALID_COMMANDS
   do
      if [ "$OPERAND" == "$COMMAND" ]
      then
         VERIFIED_OPERAND=$TRUE
      fi
   done
fi

if [ $ERRORS -eq $TRUE ]
then
   exit 1
fi

if [ $VERIFIED_OPERAND -eq $TRUE ]
then
   $BIN_DIR/$OPERAND $OPTIONS
else
   echo "\nUsage:\tentrap [-c config_file] [command]"
   echo "\n\twhere command is one of:\n"
   for COMMAND in $VALID_COMMANDS
   do
      echo "\t`$BIN_DIR/$COMMAND -h`"
   done
   echo 
   echo "snapshots:\t\c"
   echo $(ls -m $SNAPSHOT_ROOT)
   echo "filters:\t\c"
   echo $(ls -m $FILTER_ROOT)
   echo "config files:\t\c"
   echo $(ls -m $CONFIG_DIR)
   echo "temp files:\t\c"
   echo $(ls -m $TEMP_DIR)
   echo
fi

find $TEMP_DIR -atime +1 -type f -exec rm -i {} ';'
exit 0


#!/bin/ksh