Backport candidate. Updated to work with all versions of osx we support (10.3-10.5).

# Modified for Tor installer by Nick Mathewson

# 2007-06-12 Modified for leopard by Andrew Lewman

ROOTPROP=/

if [ "`whoami`" != "root" ]; then

echo "You must be root to execute this script."

exit

username=$1

realname=$2

homedir=$3

# GID 20 is "staff" which is the default. Change it if you want.

#gid=`niutil -readprop $ROOTPROP /groups/daemon gid`

if [ -x /usr/bin/dscl ]; then

   # Determine the gid of the daemon group

   gid=`dscl . -read /groups/daemon gid`

echo $gid

#if [ "x`niutil -list $ROOTPROP /users|cut -f2 -d' '|grep $username`" != "x" ]; then

   if [ "x`dscl . -list /users|cut -f2 -d' '|grep $username`" != "x" ]; then

      echo The account $username already exists.

      exit 0

   fi

   # home is the local path to the home directory

   home=/Users/$username

# defhome is what goes into NetInfo

defhome="/Network/Servers/MyServer/Users"

#echo "Determining next available system uid (please be patient)..."

# Uids over 500 are for system users.

#uiddef=`nidump passwd / | cut -d: -f3 | sort -n | grep -v '^[56789]..' |grep -v '^....$' | tail -n 1`

#uiddef=`echo $uiddef + 1 |bc`

   echo Creating account for $username...

   dscl . -create /users/$username

   dscl . -create /users/$username _writers_tim_passwd $username

   dscl . -create /users/$username name $username

   dscl . -create /users/$username passwd '*'

   dscl . -create /users/$username shell /dev/null

else

    # Determine the gid of the daemon group

   gid=`niutil -readprop $ROOTPROP /groups/daemon gid`

   if [ "x`niutil -list $ROOTPROP /users|cut -f2 -d' '|grep $username`" != "x" ]; then

      echo The account $username already exists.

      exit 0

   fi

   # home is the local path to the home directory

   home=/Users/$username

   # defhome is what goes into NetInfo

   defhome="/Network/Servers/MyServer/Users"

   #echo "Determining next available system uid (please be patient)..."

   # Uids over 500 are for system users.

   uiddef=`nidump passwd / | cut -d: -f3 | sort -n | grep -v '^[56789]..' |grep -v '^....$' | tail -n 1`

   uiddef=`echo $uiddef + 1 |bc`

   echo Creating account for $username...

   niutil -create $ROOTPROP /users/$username

   niutil -createprop $ROOTPROP /users/$username _writers_tim_passwd $username

   niutil -createprop $ROOTPROP /users/$username realname $realname

   niutil -createprop $ROOTPROP /users/$username _writers_passwd $username

   niutil -createprop $ROOTPROP /users/$username uid $uiddef

   #niutil -createprop $ROOTPROP /users/$username home_loc "<home_dir><url>afp://afp.server.com/Users/</url><path>$username</path></home_dir>"

   niutil -createprop $ROOTPROP /users/$username gid $gid

   niutil -createprop $ROOTPROP /users/$username home $homedir

   niutil -createprop $ROOTPROP /users/$username name $username

   niutil -createprop $ROOTPROP /users/$username passwd '*'

   niutil -createprop $ROOTPROP /users/$username shell /dev/null

fi

##	(ie "Tor", "torstartup", ...) the list should be new-line-delimited.

PACKAGE_LIST_SRC=./package_list.txt

### this is the name of the user created in the install process of Tor

TOR_USER=_tor

### these should be constant across all osX installs (so leave them be)

STARTUP_ITEMS_DIR=/Library/StartupItems

PKG_RCPT_BASE_DIR=/Library/Receipts

INFO_INTERMEDIATE_DIR=$BOM_INTERMEDIATE_DIR/English.lproj

TEMP_BOM_CONTENTS=/tmp/tor_uninst_scratch

### make sure the script is being run as root, barf if not

if [ "`whoami`" != "root" ]; then

	echo "Must be root to run the uninstall script."

## nuke the user created by the install process.

echo ". Removing created user $TOR_USER"

#niutil -destroy . /users/$TOR_USER

if [ -x /usr/bin/dscl ]; then

   dscl . -delete /users/$TOR_USER

else

   niutil -destroy . /users/$TOR_USER

fi

## clean up

echo ". Cleaning up"