wok annotate syslinux/stuff/iso2exe/iso2exe.sh @ rev 17492

syslinux/iso2exe: check ISO md5
author Pascal Bellard <pascal.bellard@slitaz.org>
date Sat Jan 03 21:41:48 2015 +0100 (2015-01-03)
parents 2c2a6dd5ba40
children 26654c1a7ca7
rev   line source
pascal@13691 1 #!/bin/sh
pascal@13691 2
pascal@13691 3 ddq()
pascal@13691 4 {
pascal@13691 5 dd $@ 2> /dev/null
pascal@13691 6 }
pascal@13691 7
pascal@13691 8 store()
pascal@13691 9 {
pascal@13691 10 n=$2; for i in $(seq 8 8 ${4:-16}); do
pascal@13691 11 printf '\\\\x%02X' $(($n & 255))
pascal@13691 12 n=$(($n >> 8))
pascal@13691 13 done | xargs echo -en | ddq bs=1 conv=notrunc of=$3 seek=$(($1))
pascal@13691 14 }
pascal@13691 15
pascal@13972 16 get()
pascal@13972 17 {
pascal@13972 18 echo $(od -j $(($1)) -N ${3:-2} -t u${3:-2} -An $2)
pascal@13972 19 }
pascal@13972 20
pascal@17476 21 compress()
pascal@17476 22 {
pascal@17489 23 if [ "$1" ]; then
pascal@17489 24 gzip -9 > $1
pascal@17489 25 [ "$(which advdef 2> /dev/null)" ] &&
pascal@17489 26 advdef -z4 $1 > /dev/null
pascal@17489 27 elif [ "$(which xz 2> /dev/null)" ]; then
pascal@17476 28 xz -z -e --format=lzma --lzma1=mode=normal --stdout
pascal@17476 29 else
pascal@17476 30 lzma e -si -so
pascal@17476 31 fi 2> /dev/null
pascal@17476 32 }
pascal@17476 33
pascal@14150 34 add_rootfs()
pascal@13691 35 {
pascal@13691 36 TMP=/tmp/iso2exe$$
pascal@13713 37 mkdir -p $TMP/bin $TMP/dev
pascal@17477 38 cp -a /dev/?d?* /dev/tty /dev/tty0 $TMP/dev
pascal@13691 39 $0 --get init > $TMP/init.exe
pascal@17492 40 if [ $(stat -c %s $1) -gt 32768 ]; then
pascal@17492 41 echo "Compute ISO image md5 ..."
pascal@17492 42 sed -i "s/^ISOMD5.*/ISOMD5=$(ddq if=$1 bs=32k skip=1 | \
pascal@17492 43 md5sum | cut -c-32)/" $TMP/init.exe
pascal@17492 44 fi
pascal@17489 45 # mount -o loop,ro $1 $TMP
pascal@17489 46 # oldslitaz="$(ls $TMP/boot/isolinux/splash.lss 2> /dev/null)"
pascal@17489 47 # umount -d $TMP
pascal@17489 48 # [ "$oldslitaz" ] && # for SliTaz <= 3.0 only...
pascal@17489 49 # grep -q mount.posixovl.iso2exe $TMP/init.exe &&
pascal@17489 50 # cp /usr/sbin/mount.posixovl $TMP/bin/mount.posixovl.iso2exe \
pascal@17489 51 # 2> /dev/null && echo "Store mount.posixovl ($(wc -c \
pascal@17489 52 # < /usr/sbin/mount.posixovl) bytes) ..."
pascal@17252 53 find $TMP -type f -print0 | xargs -0 chmod +x
pascal@17489 54 ( cd $TMP ; find * | cpio -o -H newc ) | compress $TMP/rootfs.gz
pascal@13691 55 SIZE=$(wc -c < $TMP/rootfs.gz)
pascal@13972 56 store 24 $SIZE $1
pascal@14261 57 OFS=$(( $OFS - $SIZE ))
pascal@17454 58 printf "Adding rootfs.gz file at %04X (%d bytes) ...\n" $OFS $SIZE
pascal@13691 59 cat $TMP/rootfs.gz | ddq of=$1 bs=1 seek=$OFS conv=notrunc
pascal@13691 60 rm -rf $TMP
pascal@14150 61 }
pascal@14150 62
pascal@14261 63 add_dosexe()
pascal@14261 64 {
pascal@17492 65 TMP=/tmp/bootiso$$
pascal@17492 66 $0 --get bootiso.bin > $TMP 2> /dev/null
pascal@17492 67 OFS=$(($(get 20 $TMP) - 0xC0))
pascal@17492 68 printf "Adding DOS/EXE stub at %04X (%d bytes) ...\n" $OFS $((0x8000 - $OFS))
pascal@17492 69 ddq if=$TMP bs=1 skip=$OFS of=$1 seek=$OFS conv=notrunc
pascal@17492 70 rm -f $TMP
pascal@14261 71 }
pascal@14261 72
pascal@14150 73 add_doscom()
pascal@14150 74 {
pascal@13972 75 SIZE=$($0 --get boot.com | wc -c)
pascal@13691 76 OFS=$(( $OFS - $SIZE ))
pascal@17454 77 printf "Adding DOS boot file at %04X (%d bytes) ...\n" $OFS $SIZE
pascal@13972 78 $0 --get boot.com | ddq of=$1 bs=1 seek=$OFS conv=notrunc
pascal@13972 79 store 66 $(($OFS+0xC0)) $1
pascal@14150 80 }
pascal@14150 81
pascal@14150 82 add_win32exe()
pascal@14150 83 {
pascal@13974 84 SIZE=$($0 --get win32.exe 2> /dev/null | tee /tmp/exe$$ | wc -c)
pascal@17454 85 printf "Adding WIN32 file at %04X (%d bytes) ...\n" 0 $SIZE
pascal@14261 86 ddq if=/tmp/exe$$ of=$1 conv=notrunc
pascal@14261 87 printf "Adding bootiso head at %04X...\n" 0
pascal@14261 88 $0 --get bootiso.bin 2> /dev/null > /tmp/exe$$
pascal@14261 89 ddq if=/tmp/exe$$ of=$1 bs=128 count=1 conv=notrunc
pascal@14266 90 store $((0x94)) $((0xE0 - 12*8)) $1
pascal@14266 91 store $((0xF4)) $((16 - 12)) $1
pascal@14267 92 ddq if=$1 of=/tmp/coff$$ bs=1 skip=$((0x178)) count=$((0x88))
pascal@14267 93 ddq if=/tmp/coff$$ of=$1 conv=notrunc bs=1 seek=$((0x178 - 12*8))
pascal@14267 94 ddq if=/tmp/exe$$ of=$1 bs=1 count=30 seek=$((0x1A0)) skip=$((0x1A0)) conv=notrunc
pascal@14267 95 ddq if=$2 bs=1 skip=$((0x1BE)) seek=$((0x1BE)) count=66 of=$1 conv=notrunc
pascal@14261 96 store 69 $(($SIZE/512)) $1 8
pascal@14261 97 store 510 $((0xAA55)) $1
pascal@14267 98 rm -f /tmp/exe$$ /tmp/coff$$
pascal@17454 99 printf "Moving syslinux hybrid boot record at %04X (512 bytes) ...\n" $SIZE
pascal@14261 100 ddq if=$2 bs=1 count=512 of=$1 seek=$SIZE conv=notrunc
pascal@14261 101 OFS=$(($SIZE+512))
pascal@14257 102 }
pascal@14257 103
pascal@14257 104 add_fdbootstrap()
pascal@14257 105 {
pascal@14268 106 SIZE=$($0 --get bootfd.bin 2> /dev/null | wc -c)
pascal@14257 107 if [ $SIZE -ne 0 ]; then
pascal@17454 108 SIZE=$(( $SIZE - 512 )) # sector 2 is data
pascal@17454 109 OFS=$(( $OFS - $SIZE ))
pascal@17454 110 printf "Adding floppy bootstrap file at %04X (%d bytes) ...\n" $OFS $SIZE
pascal@14268 111 $0 --get bootfd.bin | \
pascal@14268 112 ddq of=$1 bs=1 count=512 seek=$OFS conv=notrunc
pascal@14268 113 $0 --get bootfd.bin | \
pascal@14268 114 ddq of=$1 bs=1 skip=1024 seek=$((512 + $OFS)) conv=notrunc
pascal@17454 115 store 28 $(($SIZE/512)) $1 8
pascal@14257 116 fi
pascal@14150 117 }
pascal@14150 118 case "$1" in
pascal@14150 119 --build)
pascal@14150 120 shift
pascal@14261 121 ls -l $@
pascal@14150 122 cat >> $0 <<EOM
pascal@17476 123 $(tar cf - $@ | compress | uuencode -m -)
pascal@14150 124 EOT
pascal@14150 125 EOM
pascal@14150 126 sed -i '/^case/,/^esac/d' $0
pascal@14150 127 exit ;;
pascal@14150 128 --get)
pascal@14150 129 cat $2
pascal@14150 130 exit ;;
pascal@14150 131 --array)
pascal@14150 132 DATA=/tmp/dataiso$$
pascal@14150 133 ddq if=/dev/zero bs=32k count=1 of=$DATA
pascal@14261 134 add_win32exe $DATA $2 > /dev/null
pascal@14261 135 HSZ=$OFS
pascal@14261 136 add_dosexe $DATA > /dev/null
pascal@14150 137 add_rootfs $DATA > /dev/null
pascal@14150 138 add_doscom $DATA > /dev/null
pascal@14257 139 add_fdbootstrap $DATA > /dev/null
pascal@14257 140 name=${3:-bootiso}
pascal@17451 141 BOOTISOSZ=$((0x8000 - $OFS + $HSZ))
pascal@14150 142 cat <<EOT
pascal@14150 143
pascal@17451 144 #define $(echo $name | tr '[a-z]' '[A-Z]')SZ $BOOTISOSZ
pascal@14150 145
pascal@14150 146 #ifdef WIN32
pascal@14257 147 static char $name[] = {
pascal@14261 148 $(hexdump -v -n $HSZ -e '" " 16/1 "0x%02X, "' -e '" // %04.4_ax |" 16/1 "%_p" "| \n"' $DATA | sed 's/ 0x ,/ /g')
pascal@14150 149 $(hexdump -v -s $OFS -e '" " 16/1 "0x%02X, "' -e '" // %04.4_ax |" 16/1 "%_p" "| \n"' $DATA | sed 's/ 0x ,/ /g')
pascal@17451 150 EOT
pascal@17451 151
pascal@17451 152 for mode in data offset ; do
pascal@17451 153 ofs=0
pascal@17451 154 while read tag str; do
pascal@17451 155 if [ "$mode" == "data" ]; then
pascal@17451 156 echo -en "$str\0" | hexdump -v -e '" " 16/1 "0x%02X, "' \
pascal@17451 157 -e '" // %04.4_ax |" 16/1 "%_p" "| \n"' | \
pascal@17451 158 sed 's/ 0x ,/ /g'
pascal@17451 159 else
pascal@17451 160 if [ $ofs -eq 0 ]; then
pascal@17451 161 cat <<EOT
pascal@14150 162 };
pascal@17451 163 #else
pascal@17451 164 static char *$name;
pascal@14150 165 #endif
pascal@17451 166 #define ELTORITOOFS 3
pascal@14150 167 EOT
pascal@17451 168 fi
pascal@17451 169 echo "#define $tag $(($BOOTISOSZ+$ofs))"
pascal@17451 170 ofs=$(($(echo -en "$str\0" | wc -c)+$ofs))
pascal@17451 171 fi
pascal@17451 172 done <<EOT
pascal@17451 173 READSECTORERR Read sector failure.
pascal@17451 174 USAGE Usage: isohybrid.exe file.iso [--forced]
pascal@17451 175 OPENERR Can't open r/w the iso file.
pascal@17451 176 ELTORITOERR No EL TORITO SPECIFICATION signature.
pascal@17451 177 CATALOGERR Invalid boot catalog.
pascal@17451 178 HYBRIDERR No isolinux.bin hybrid signature.
pascal@17451 179 SUCCESSMSG Now you can create a USB key with your .iso file.\\\\nSimply rename it to a .exe file and run it.
pascal@17451 180 FORCEMSG You can add --forced to proceed anyway.
pascal@17451 181 EOT
pascal@17451 182 done
pascal@14150 183 rm -rf $DATA
pascal@14150 184 exit ;;
pascal@14150 185 --exe)
pascal@14150 186 # --exe mvcom.bin x.com y.exe > xy.exe
pascal@14150 187 cat $4 $3 > /tmp/exe$$
pascal@14150 188 S=$(stat -c %s /tmp/exe$$)
pascal@14150 189 store 2 $(($S%512)) /tmp/exe$$
pascal@14150 190 store 4 $((($S+511)/512)) /tmp/exe$$
pascal@14150 191 store 14 -16 /tmp/exe$$
pascal@14150 192 store 16 -2 /tmp/exe$$
pascal@14150 193 store 20 256 /tmp/exe$$
pascal@14150 194 store 22 -16 /tmp/exe$$
pascal@14150 195 ddq if=$2 bs=1 seek=64 of=/tmp/exe$$ conv=notrunc
pascal@14150 196 store 65 $(stat -c %s $3) /tmp/exe$$
pascal@14150 197 store 68 $((0x100-0x40+$(stat -c %s $4))) /tmp/exe$$
pascal@14150 198 cat /tmp/exe$$
pascal@14150 199 rm -f /tmp/exe$$
pascal@14150 200 exit ;;
pascal@14150 201 esac
pascal@14150 202
pascal@14150 203 main()
pascal@14150 204 {
pascal@14257 205 [ $(id -u) -ne 0 ] && exec su -c "$0 $@" < /dev/tty
pascal@17451 206 case "${1/--/-}" in
pascal@17451 207 -get) shift
pascal@14150 208 uudecode | unlzma | tar xOf - $@
pascal@14150 209 exit ;;
pascal@14150 210 *) cat > /dev/null
pascal@14150 211 esac
pascal@14150 212
pascal@17451 213 [ ! -s "$1" ] && echo "usage: $0 image.iso [--undo]" 1>&2 && exit 1
pascal@17451 214 case "${2/--/-}" in
pascal@17451 215 -u*|-r*|-w*)
pascal@17451 216 case "$(get 0 $1)" in
pascal@17451 217 23117)
pascal@17451 218 ddq if=$1 bs=512 count=2 skip=$(get 69 $1 1) of=$1 conv=notrunc
pascal@17451 219 ddq if=/dev/zero bs=1k seek=1 count=31 of=$1 conv=notrunc ;;
pascal@17451 220 *) ddq if=/dev/zero bs=1k count=32 of=$1 conv=notrunc ;;
pascal@17451 221 esac
pascal@17451 222 exit 0
pascal@17451 223 esac
pascal@14150 224 case "$(get 0 $1)" in
pascal@14150 225 23117) echo "The file $1 is already an EXE file." 1>&2 && exit 1;;
pascal@17489 226 0) $0 --get isohdpfx.bin | ddq bs=512 count=1 of=$1 conv=notrunc
pascal@14150 227 esac
pascal@14150 228
pascal@14261 229 echo "Read hybrid & tazlito data..."
pascal@14261 230 ddq if=$1 bs=512 count=1 of=/tmp/hybrid$$
pascal@14261 231 ddq if=$1 bs=512 skip=2 count=20 of=/tmp/tazlito$$
pascal@14261 232 add_win32exe $1 /tmp/hybrid$$
pascal@17454 233 printf "Moving tazlito data record at %04X (512 bytes) ...\n" $OFS
pascal@14261 234 ddq if=/tmp/tazlito$$ bs=1 count=512 of=$1 seek=$OFS conv=notrunc
pascal@14261 235 rm -f /tmp/tazlito$$ /tmp/hybrid$$
pascal@17454 236 HOLE=$(($OFS+512))
pascal@14150 237
pascal@14150 238 # keep the largest room for the tazlito info file
pascal@14261 239 add_dosexe $1
pascal@14150 240 add_rootfs $1
pascal@14150 241 add_doscom $1
pascal@14257 242 add_fdbootstrap $1
pascal@17454 243 printf "%d free bytes in %04X..%04X\n" $(($OFS-$HOLE)) $HOLE $OFS
pascal@13972 244 store 26 ${RANDOM:-0} $1
pascal@13697 245 echo -n "Adding checksum..."
pascal@17491 246 store 64 $(od -v -j 66 -N 32702 -t u2 -w2 -An $1 | \
pascal@17491 247 awk '{ i+= $0 } END { print -(i % 65536) }') $1
pascal@13697 248 echo " done."
pascal@13691 249 }
pascal@13691 250
pascal@13691 251 main $@ <<EOT