a2server/scripts/tools/mkatinit.txt

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#! /bin/bash
# vim: set tabstop=4 shiftwidth=4 expandtab filetype=sh:
# mkatinit by Ivan Drucker, http://appleii.ivanx.com
# not licensed; please modify and redistribute as you like
# 1.0b4 1-30-11
# 1.1d1 -- uses bashByter. NOT TESTED.
# This script creates the ATINIT file required for netbooting Apple IIe and
# IIGS clients from a netatalk server. ATINIT is put in the in the
# (sharename)/USERS hierarchy, or the current directory if it can't.
# The user can specify the ProDOS startup system program and default prefix.
# If an argument is supplied, it is used as the username and the prompt is
# skipped.
# The ATINIT file is not as complete as the ones generated by AppleShare 3.0,
# and features such as default printer are not used.
# to do
# possibly require confirmation if AFPD_GUEST is not set correctly
# or offer to change it
# from ID-bashByter library
decToChar () {
# converts single-byte decimal value to equivalent character
# arg: decimal number from 0-255
# out: one character
#exit: 8=extraneous arg, 11=missing arg, 21=invalid arg
[[ $1 ]] || return 11
[[ $2 ]] && return 8
[[ ( $(printf %d "$1" 2> /dev/null ) == $1 ) \
&& ( $1 -ge 0 ) && ( $1 -le 255 ) ]] || return 21
# args are valid
echo -n -e "\x$(printf %02X "$1")"
}
writechars () {
# write one or more characters (bytes) to file
# arg1: filename
# arg2: (optional) offset (# of bytes to skip before writing)
# arg3 OR stdin: sequence of characters
# [stdin required if writing NUL (0) or trailing LF (0x0A) chars]
# out: nothing
# exit: 8=extraneous arg, 11=missing arg1,
# 13=missing stdin/arg3, 22=invalid arg2
[[ $1 ]] || { [[ -t 0 ]] || cat > /dev/null; return 11; }
[[ $2 ]] && { [[ ( $(printf %d "$2" 2> /dev/null) == $2 ) && \
( $2 -ge 0 ) ]] || { [[ -t 0 ]] || cat > /dev/null; return 22; } }
[[ ( ! -t 0 ) && $3 ]] && { cat > /dev/null; return 8; }
[[ ( -t 0 ) ]] && { [[ $4 ]] && return 8; [[ $3 ]] || return 13; }
# args are valid
if [[ -t 0 ]]; then
echo -n "$3" | \
dd of="$1" bs=1 seek=$(($2)) conv=notrunc 2> /dev/null
else
dd of="$1" bs=1 seek=$(($2)) conv=notrunc 2> /dev/null
fi
}
#---- mkatinit starts here
IFS=''
#defaults
sharepath=$(grep options:prodos /usr/local/etc/netatalk/AppleVolumes.default | tail -1 | cut -d" " -f1)
prefix=/$(grep options:prodos /usr/local/etc/netatalk/AppleVolumes.default | tail -1 | cut -d" " -f2)
gsprefix=$prefix
startprog="$prefix/BASIC.SYSTEM"
gsstartprog="$prefix/SYSTEM/FINDER"
filename="ATINIT"
user=$(whoami)
echo
usersfolder=1
while [ -n "$1" ] && [ "${1:0:1}" = '-' ]; do
flag="$1"
if [ $flag = "-gs" ]; then
gs=1
shift
continue
elif [ $flag = "-d" ]; then
noprompt=1
shift
continue
elif [ $flag = "-f" ]; then
overwrite=1
shift
continue
elif [ $flag = "-g" ]; then
alsoguest=1
shift
continue
elif [ $flag = "-c" ]; then
usersfolder=0
shift
continue
else
badflag=1
break
fi
done
if [ $usersfolder -eq 0 ] && [ -n "$alsoguest" ]; then
badflag=1
fi
if [ $badflag ]; then
echo "usage: mkatinit [-gs] [-d] [-f] [-g | -c] [<username>|guest]"
echo
echo "<username> should be the name of a netatalk user, or 'guest'"
echo "-gs sets the default ProDOS netboot system startup program and"
echo " prefix for GS/OS (if omitted, ProDOS 8 defaults are used)"
echo "-d use the default start program and prefix, without prompting"
echo "-f overwrite existing ATINIT file if present, without warning"
echo "-g create an ATINIT file for Guest as well as the specified user"
echo "-c write ATNIT to current directory instead of USERS hierarchy"
echo
exit
fi
arg="$1"
[[ -z $arg ]] && arg=$user
while : ; do
if [ ${#arg} -gt 32 ]; then
echo "User name is too long. Exiting with no action."
exit
elif [ -n "$arg" ]; then
if [ `echo $arg | tr '[:upper:]' '[:lower:]'` = "guest" ]; then
username='<Any User>'
alsoguest=
if [[ ! $(grep -F -s $(ls -1 /home) /etc/default/netatalk) ]]; then
echo 'Warning: The AFPD_GUEST setting in /etc/default/netatalk is not assigned to a'
echo 'user with a folder in /home. Guest users may be able to boot over the network'
echo 'into ProDOS 8 for read-only access, but will not be able to boot into GS/OS.'
if [ $gs ]; then
echo ' Using ProDOS 8 defaults.'
gs=
else
echo
fi
echo
fi
else
username="$arg"
if [[ ! $(ls -1 /home | grep -F -s $username) ]]; then
echo "Warning: This username ($username) does not have a folder in /home. This user may"
echo "not be able to boot over the network into ProDOS 8 or GS/OS."
echo
fi
fi
if [ $gs ]; then
startprog="$gsstartprog"
prefix="$gsprefix"
fi
fi
# make username all caps
username=`echo $username | tr '[:lower:]' '[:upper:]'`
# prompt for folders
if [ ! $doalsoguest ] && [ ! $noprompt ]; then
while : ; do
echo "Enter the ProDOS path to the startup system program."
echo "default (CR to accept): $startprog"
read
if [ ${#REPLY} -gt 64 ]; then
continue
elif [ -n "$REPLY" ]; then
startprog="`echo $REPLY | tr '[:lower:]' '[:upper:]'`"
echo
fi
break
done
while : ; do
echo "Enter the initial ProDOS prefix:"
echo "default (CR to accept): $prefix"
read
if [ ${#REPLY} -gt 64 ]; then
continue
elif [ -n "$REPLY" ]; then
prefix="`echo $REPLY | tr '[:lower:]' '[:upper:]'`"
echo
fi
break
done
fi
# create folders if needed
filepath="$PWD/$filename"
while [ $usersfolder -eq 1 ]; do
# create folders for ATINIT
while [ ! -d "$sharepath" ]; do
echo "Shared volume '$sharepath' not found. Edit mkatinit to change the default."
echo "Enter the local path to the netatalk shared volume used for netboot:"
read sharepath
done
if [ ! -d "$sharepath/USERS" ]; then
mkdir "$sharepath/USERS"
if [ $? -ne 0 ]; then
break
fi
fi
if [ ! -d "$sharepath/USERS/$username" ]; then
mkdir "$sharepath/USERS/$username"
if [ $? -ne 0 ]; then
break
fi
fi
if [ ! -d "$sharepath/USERS/$username/SETUP" ]; then
mkdir "$sharepath/USERS/$username/SETUP"
if [ $? -ne 0 ]; then
break
fi
else
if [ ! -w "$sharepath/USERS/$username/SETUP" ]; then
break
fi
fi
# we have a valid USERS folder target for ATINIT
filepath="$sharepath/USERS/$username/SETUP/$filename"
usersfolder=2
done
if [ $usersfolder -eq 1 ]; then
echo "Could not write to shared volume. Creating ATINIT in current directory."
if [ -n "$alsoguest" ]; then
echo "ATINIT for Guest user will not be created."
fi
echo
alsoguest=
fi
if [ ! $doalsoguest ]; then
echo "netboot start program: $startprog"
echo "netboot start prefix : $prefix"
echo
fi
#remove ATINIT if present
if [ ! $overwrite ] && [ -f "$filepath" ]; then
echo -n "$filepath already exists. Overwrite? "
while read -s -n 1 > /dev/null 2>&1; do
if [ -z "$REPLY" ]; then
continue
elif [ "$REPLY" = "Y" ] || [ "$REPLY" = "y" ]; then
echo
break
elif [ "$REPLY" = "N" ] || [ "$REPLY" = "n" ]; then
echo
echo "Exiting with no action."
exit
fi
done
fi
#write the file. start with zeroes
dd if=/dev/zero of="$filepath" bs=1 count=276 2> /dev/null
#put in startprog, prefix, username (first byte of each field is length)
# ( echo -n "${#startprog}" | awk '{printf("%c",$0);}'; echo -n "$startprog"; ) | dd of="$filepath" bs=1 seek=7 conv=notrunc 2> /dev/null
# ( echo -n "${#prefix}" | awk '{printf("%c",$0);}'; echo -n "$prefix"; ) | dd of="$filepath" bs=1 seek=78 conv=notrunc 2> /dev/null
# ( echo -n "${#username}" | awk '{printf("%c",$0);}'; echo -n "$username"; ) | dd of="$filepath" bs=1 seek=143 conv=notrunc 2> /dev/null
( decToChar "${#startprog}"; echo -n "$startprog"; ) | writechars "$filepath" 7
( decToChar "${#prefix}"; echo -n "$prefix"; ) | writechars "$filepath" 78
( decToChar "${#username}"; echo -n "$username"; ) | writechars "$filepath" 143
echo "Created $filepath"
if [ ! $alsoguest ]; then
break
fi
if [ $usersfolder -eq 2 ]; then
usersfolder=1
fi
doalsoguest=1
arg='guest'
done
echo