⟦b03351104⟧

TextFile

#!/bin/sh

###
# This program is copyright Alec Muffett 1991, and is provided as part of
# the Crack v4.1 Password Cracking package.  The author disclaims all
# responsibility or liability with respect to it's usage or its effect
# upon hardware or computer systems, and maintains copyright as set out in
# the "LICENCE" document which accompanies distributions of Crack v4.0 and
# upwards. So there...
###

###
# CRACK_HOME: You must put DOUBLE QUOTES around this and have /bin/csh if
# you work relative to ~username - this is the Crack installation directory.
# (currently developing on "dougal")
###

CRACK_HOME="~aem/dougal/crack41f"

###
# CRACK_OUT: This is the directory into which all the password guesser
# output files are to be stored. This affects only the "out*" files, and
# not "D*" or "P*", due to restraints on the support scripts.
###

CRACK_OUT="$CRACK_HOME"

###
# Umask for security's sake - stops files being world readable (if you
# don't have it in your .login)
###

umask 077

###
# DEFAULT_BIN : For non-network cracks, you can leave this as 'generic'.
# Setting this to `arch` is non-portable.
###

DEFAULT_BIN="generic"

###
# List of standard dictionaries that you should have to provide words;
#
###

STDDICT="/usr/dict/words"

###
# Compress: name of a compression prog (compress & pack supported) to be
# applied to the bigdict to save filespace
###

compress="/usr/ucb/compress"

###
############### FROM HERE ON IN IT'S ALL MY FAULT ###############
###

version="4.1f RELEASE"			# version number
pwl=""					# user specified
domail=""				# user specified
fgnd=""					# user specified
remote=""				# program specified
nice=""					# user specified
rcvr=""					# user specified
inputfile="/tmp/pw.$$"			# program specified, also in pwc.c
verbose=""				# user specified
cf_file="Scripts/network.conf"		# program specified
bigdict="Dicts/bigdict"			# program specified
lockdict="Dicts/.lockfile"		# program specified

CRACK_HOME_UNRES="$CRACK_HOME"

if [ -f "/bin/csh" ]			# -x bombs on Ultrix
then
	CRACK_OUT=` /bin/csh -fc "echo $CRACK_OUT" `
	CRACK_HOME=` /bin/csh -fc "echo $CRACK_HOME" `
fi

if [ ! -d "$CRACK_OUT" ]
then
	echo "Warning: CRACK_OUT directory reset to directory '.'"
	CRACK_OUT="."
fi

export CRACK_HOME
export CRACK_OUT
export DEFAULT_BIN
export CRACK_HOME_UNRES

###
# Check existance of a home directory
###

if [ "$CRACK_HOME" != "" -a -d "$CRACK_HOME" ]
then
	cd $CRACK_HOME || exit 1
else
	echo "Fatal error: the directory $CRACK_HOME does not exist."
	echo ""
	echo "Please set the value of CRACK_HOME in the 'Crack' script to the name of
	echo "the installation directory."
	echo ""
	echo "The current working directory is" `pwd`"
	exit 1
fi

###
# Announce ourselves.
###

echo "Crack $version, The Password Cracker (c) Alec D.E. Muffett, 1992"
echo "Invoked as: $0 $*"

if [ $# = 0 ]
then
	echo "Usage:    $0 [options] [bindir] passwdfile [...]"
	echo "Or:       $0 -network [options] passwdfile [...]"
	echo "Options:-"
	echo "	-v              - to produce verbose output"
	echo "	-nnicevalue     - to run niced to 'nicevalue'"
	echo "	-rpointfile     - to recover a crashed-out job"
	echo "	-Rpointfile     - to recover (with verify) a crashed-out job"
	echo "	-f		- to run in foreground (output to stdout)"
	echo "	-m		- to mail the user a warning message if cracked"
	exit 1
fi

###
# Make the dictionaries. God this is SOOOOO much simpler...
###

if [ ! -f $lockdict ]
then
	echo "Making dictionary $bigdict - This may take some time..."
	(
		for dictfile in $STDDICT DictSrc/*
		do
			case $dictfile in
				*.Z)
					zcat $dictfile
					;;
				*.z)
					pcat $dictfile
					;;
				*)
					cat $dictfile
					;;
			esac
		done
	) |
	grep -v '^#' |
	sort |
	uniq > $bigdict

# I do not do "tr A-Z a-z" here because of words like LaTeX and
# BiCapitalisation, which are potential passwords, but the structure of
# which would be irrecoverably destroyed by lowercaseing.

	echo touch $lockdict		# for future refs.
	touch $lockdict

	if [ "x$compress" != "x" -a -f "$compress" ]
	then
		echo $compress $bigdict
		# if this fails, tweak the $compress definition above...
		$compress $bigdict || exit 1
	fi
else
	echo Dictionary Dicts/* intact
fi

###
# Check your invocation...
###

if [ "x$1" = "x-network" ]
then
	shift
	Scripts/Crack.network $*
	exit 0
fi

while :
do
	case $1 in
		-network)
			echo "Error: -network (if specified) must be first argument"
			exit 1
			;;
		-X*)
			remote=$1
			shift
			;;
		-m*)
			domail=$1
			shift
			;;
		-l*)
			pwl=$1
			shift
			;;
		-f*)
			fgnd=$1
			shift
			;;
		-n*)
			nice=$1
			shift
			;;
		-r*)
			rcvr=$1
			shift
			;;
		-v*)
			verbose=$1
			shift
			;;
		-*)
			echo "Error: unknown argument $1"
			shift
			;;
		*)
			break
			;;
	esac
done

###
# Test first non-switch argument for existance, hence where to put binaries
###

if [ -f "$1" ]
then
	CRACK_ARCH="$CRACK_HOME/$DEFAULT_BIN"
else
	CRACK_ARCH="$CRACK_HOME/$1"
	shift
fi

export CRACK_ARCH

echo "Binary directory: $CRACK_ARCH"

###
# Make the password cracker
###

Scripts/do_pwc $CRACK_ARCH || exit 1

###
# Process input to the program
###

echo "Sorting data for Crack."

if [ "x$remote" != "x" ]
then
	cat > $inputfile
else
	out_init=$CRACK_OUT/out.$$

	Scripts/do_join $out_init $* > $inputfile || exit 1

	if [ "x$domail" != "x" ]
	then
		MISCREANTS=`awk '/Guessed/{print $6}' < $out_init`
		echo Sending Warning Mail to $MISCREANTS
		Scripts/nastygram $MISCREANTS
	fi

	if [ "x$fgnd" != "x" ]
	then
		cat $out_init || exit 1
		rm -f $out_init
	fi
fi

###
# Check the runtime scratch file directory for pwc
###

if [ ! -d Runtime ]
then
	echo "Creating Runtime Directory."
	mkdir Runtime || exit 1
fi

###
# Kick it off into the background ?
###
# This is the message which has drawn the most complaints...  However, I
# have no way of knowing the name in advance, and I can't have crack-pwc
# print it on stdout due to hanging file descriptors which bollox a
# network crack.  Hence I HAVE to be vague...
###

flags="$remote $fgnd $XXdomail $pwl $nice $rcvr $verbose -i $inputfile"

echo "Flags:" $flags Dicts/*

if [ "x$fgnd" != "x" ]
then
	echo "Running program in foreground"
	$CRACK_ARCH/crack-pwc $flags Dicts/* < /dev/null 2>&1
else
	echo "Running program in background"
	# Apollos/Suns need first 7 descriptors closed to bg properly
	# from ksh - hence overkill - AEM
	nohup $CRACK_ARCH/crack-pwc $flags Dicts/* </dev/null >/dev/null \
		2>&1 3>&1 4>&1 5>&1 6>&1 7>&1 8>&1 9>&1 &
	echo "Output will be written to a file in directory $CRACK_OUT"
	echo "named 'out<something>'"
fi

sleep 1

test -f nohup.out && rm nohup.out

###
# There are horrible timeraces involved in removing $tmpfile, so I dont.
# Crack-pwc does. Still. Hohum.
###

exit 0
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⟦b03351104⟧ TextFile

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