wok annotate syslinux/stuff/iso2exe/iso2exe.sh @ rev 13974
syslinux/iso2exe: fix checksum
author | Pascal Bellard <pascal.bellard@slitaz.org> |
---|---|
date | Wed Feb 06 12:05:22 2013 +0100 (2013-02-06) |
parents | b5ea41033c21 |
children | a26ba54f3ea7 |
rev | line source |
---|---|
pascal@13691 | 1 #!/bin/sh |
pascal@13691 | 2 if [ "$1" == "--build" ]; then |
pascal@13691 | 3 shift |
pascal@13691 | 4 [ $(tar cf - $@ | wc -c) -gt $((32 * 1024)) ] && |
pascal@13691 | 5 echo "The file set $@ is too large (31K max) :" && |
pascal@13691 | 6 ls -l $@ && exit 1 |
pascal@13691 | 7 cat >> $0 <<EOM |
pascal@13691 | 8 $(tar cf - $@ | lzma e -si -so | uuencode -m -) |
pascal@13691 | 9 EOT |
pascal@13691 | 10 EOM |
pascal@13691 | 11 sed -i '/--build/,/^fi/d' $0 |
pascal@13691 | 12 exit |
pascal@13691 | 13 fi |
pascal@13691 | 14 |
pascal@13691 | 15 ddq() |
pascal@13691 | 16 { |
pascal@13691 | 17 dd $@ 2> /dev/null |
pascal@13691 | 18 } |
pascal@13691 | 19 |
pascal@13691 | 20 store() |
pascal@13691 | 21 { |
pascal@13691 | 22 n=$2; for i in $(seq 8 8 ${4:-16}); do |
pascal@13691 | 23 printf '\\\\x%02X' $(($n & 255)) |
pascal@13691 | 24 n=$(($n >> 8)) |
pascal@13691 | 25 done | xargs echo -en | ddq bs=1 conv=notrunc of=$3 seek=$(($1)) |
pascal@13691 | 26 } |
pascal@13691 | 27 |
pascal@13972 | 28 get() |
pascal@13972 | 29 { |
pascal@13972 | 30 echo $(od -j $(($1)) -N ${3:-2} -t u${3:-2} -An $2) |
pascal@13972 | 31 } |
pascal@13972 | 32 |
pascal@13691 | 33 main() |
pascal@13691 | 34 { |
pascal@13691 | 35 case "$1" in |
pascal@13691 | 36 --get) shift |
pascal@13691 | 37 uudecode | unlzma | tar xOf - $@ |
pascal@13691 | 38 exit ;; |
pascal@13691 | 39 *) cat > /dev/null |
pascal@13691 | 40 esac |
pascal@13691 | 41 |
pascal@13691 | 42 [ ! -s "$1" ] && echo "usage: $0 image.iso" 1>&2 && exit 1 |
pascal@13691 | 43 case "$(od -N 2 -t x2 -An $1)" in |
pascal@13691 | 44 *5a4d) echo "The file $1 is already an EXE file." 1>&2 && exit 1;; |
pascal@13691 | 45 *0000) [ -x /usr/bin/isohybrid ] && isohybrid $1 |
pascal@13691 | 46 esac |
pascal@13691 | 47 |
paul@13692 | 48 echo "Moving syslinux hybrid boot record..." |
pascal@13691 | 49 ddq if=$1 bs=512 count=1 | ddq of=$1 bs=512 count=1 seek=1 conv=notrunc |
pascal@13691 | 50 |
paul@13692 | 51 echo "Inserting EXE boot record..." |
pascal@13691 | 52 $0 --get bootiso.bin | ddq of=$1 conv=notrunc |
pascal@13691 | 53 |
pascal@13691 | 54 # keep the largest room for the tazlito info file |
pascal@13691 | 55 TMP=/tmp/iso2exe$$ |
pascal@13713 | 56 mkdir -p $TMP/bin $TMP/dev |
pascal@13713 | 57 cp -a /dev/?d?* $TMP/dev |
pascal@13691 | 58 $0 --get init > $TMP/init.exe |
pascal@13974 | 59 grep -q mount.posixovl.iso2exe $TMP/init.exe && |
pascal@13974 | 60 cp /usr/sbin/mount.posixovl $TMP/bin/mount.posixovl.iso2exe |
pascal@13974 | 61 find $TMP -type f | xargs chmod +x |
pascal@13713 | 62 ( cd $TMP ; find * | cpio -o -H newc ) | \ |
pascal@13691 | 63 lzma e $TMP/rootfs.gz -si 2> /dev/null |
pascal@13691 | 64 SIZE=$(wc -c < $TMP/rootfs.gz) |
pascal@13972 | 65 store 24 $SIZE $1 |
pascal@13691 | 66 OFS=$(( 0x8000 - $SIZE )) |
paul@13692 | 67 printf "Adding rootfs.gz file at %04X...\n" $OFS |
pascal@13691 | 68 cat $TMP/rootfs.gz | ddq of=$1 bs=1 seek=$OFS conv=notrunc |
pascal@13691 | 69 rm -rf $TMP |
pascal@13972 | 70 SIZE=$($0 --get boot.com | wc -c) |
pascal@13691 | 71 OFS=$(( $OFS - $SIZE )) |
paul@13692 | 72 printf "Adding DOS boot file at %04X...\n" $OFS |
pascal@13972 | 73 $0 --get boot.com | ddq of=$1 bs=1 seek=$OFS conv=notrunc |
pascal@13972 | 74 store 66 $(($OFS+0xC0)) $1 |
pascal@13974 | 75 SIZE=$($0 --get win32.exe 2> /dev/null | tee /tmp/exe$$ | wc -c) |
pascal@13974 | 76 if [ $SIZE -ne 0 ]; then |
pascal@13974 | 77 OFS=$(( 128 + ( ($OFS - $SIZE + 128) & 0xFE00 ) )) |
pascal@13974 | 78 printf "Adding WIN32 file at %04X...\n" $OFS |
pascal@13974 | 79 LOC=$((0xAC+$(get 0x94 /tmp/exe$$))) |
pascal@13974 | 80 for i in $(seq 1 $(get 0x86 /tmp/exe$$)); do |
pascal@13974 | 81 store $LOC $(($(get $LOC /tmp/exe$$)+$OFS-128)) /tmp/exe$$ |
pascal@13974 | 82 LOC=$(($LOC+40)) |
pascal@13974 | 83 done |
pascal@13974 | 84 ddq if=/tmp/exe$$ of=$1 bs=1 skip=128 seek=$OFS conv=notrunc |
pascal@13974 | 85 fi |
pascal@13972 | 86 rm -f /tmp/exe$$ |
pascal@13972 | 87 store 60 $OFS $1 |
pascal@13972 | 88 store 26 ${RANDOM:-0} $1 |
pascal@13974 | 89 i=66 |
pascal@13697 | 90 n=0 |
pascal@13697 | 91 echo -n "Adding checksum..." |
pascal@13697 | 92 while [ $i -lt 32768 ]; do |
pascal@13972 | 93 n=$(($n + $(get $i $1) )) |
pascal@13697 | 94 i=$(($i + 2)) |
pascal@13697 | 95 done |
pascal@13972 | 96 store 64 -$n $1 |
pascal@13697 | 97 echo " done." |
pascal@13691 | 98 } |
pascal@13691 | 99 |
pascal@13691 | 100 main $@ <<EOT |