SliTaz Repositories

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/syslinux/stuff/iso2exe/chkmd5.sh	Tue Feb 10 13:31:26 2015 +0100
     1.3 @@ -0,0 +1,45 @@
     1.4 +#!/bin/sh
     1.5 +
     1.6 +ddq()
     1.7 +{
     1.8 +	dd $@ 2> /dev/null
     1.9 +}
    1.10 +
    1.11 +get()
    1.12 +{
    1.13 +	od -v -j $1 -N ${4:-${3:-2}} -t u${3:-2} -w${3:-2} -An $2 2>/dev/null ||
    1.14 +	hexdump -v -s $1 -n ${4:-${3:-2}} -e "\"\" 1/${3:-2} \" %d\n\"" $2
    1.15 +}
    1.16 +
    1.17 +[ -z "$1" ] && echo "usage: $0 file.iso" && exit 1
    1.18 +
    1.19 +echo "iso data sectors 16..$(echo $(get 32848 $1 4))"
    1.20 +ddq if=$1 bs=2k skip=16 count=$(echo $(get 32848 $1 4)) | md5sum
    1.21 +ddq if=$1 bs=16 count=1 skip=2047 | od -N 16 -t x1 -An | sed 's/ //g'
    1.22 +n=$(($(get 2 $1)-1+($(get 4 $1)-1)*512))
    1.23 +[ 0 -ne $(get 18 $1) ] && [ $n -lt 50000 ] && [ $n -gt 32768 ] &&
    1.24 +printf "exe16 chk 0..%04X (65535) %d\n" $n $(get 0 $1 2 $n | awk '{ i+= $0 } END { print i % 65536 }')
    1.25 +echo -n "boot chk 40..8000 (0) "
    1.26 +get 64 $1 2 32704 | awk '{ i+= $0 } END { print i % 65536 }'
    1.27 +if [ 23117 -eq $(get 0 $1) ]; then
    1.28 +	win32sz=$((512*$(get 69 $1 1)))
    1.29 +	[ 17744 -eq $(get 128 $1) ] && printf "WIN32 file at 0000 (%d bytes)\n" $win32sz
    1.30 +	[ 29538 -eq $(get 125 $1) ] && echo "bootiso head at 0000"
    1.31 +	if [ $win32sz -ne 0 ]; then
    1.32 +		printf "syslinux hybrid boot record at %04X (512 bytes)\n" $win32sz
    1.33 +		printf "tazlito data record at %04X (512 bytes)\n" $(($win32sz+512))
    1.34 +	fi
    1.35 +	dosexe=$(($(get 20 $1) - 0xC0))
    1.36 +	rootfs=$(($dosexe - $(get 24 $1)))
    1.37 +	doscom=$(get 66 $1)
    1.38 +	fdsect=$(get 28 $1 1)
    1.39 +	printf "%d free bytes at %04X..%04X\n" $(($doscom - (512*$fdsect) - $win32sz - 1024))  $(($win32sz+1024)) $(($doscom - (512*$fdsect)))
    1.40 +	[ $fdsect -ne 0 ] && 
    1.41 +	printf "floppy bootstrap file at %04X (%d bytes)\n" $(($doscom - (512*$fdsect))) $((512*$fdsect))
    1.42 +	[ $doscom -ne 0 ] &&
    1.43 +	printf "DOS boot file at %04X (%d bytes)\n" $doscom $(($rootfs - $doscom))
    1.44 +	[ $dosexe -ne $rootfs ] &&
    1.45 +	printf "rootfs.gz file at %04X (%d bytes)\n" $rootfs $(($dosexe - $rootfs))
    1.46 +	printf "DOS/EXE stub at %04X (%d bytes)\n" $dosexe $((0x8000 - $dosexe))
    1.47 +	[ 0 -ne $(get 32756 $1) ] && echo "ISO image md5 at 7FF0 (16 bytes)"
    1.48 +fi

     2.1 --- a/syslinux/stuff/iso2exe/iso2exe.c	Tue Feb 10 08:53:27 2015 +0100
     2.2 +++ b/syslinux/stuff/iso2exe/iso2exe.c	Tue Feb 10 13:31:26 2015 +0100
     2.3 @@ -346,7 +346,7 @@
     2.4  			lseek(fd, 0UL, SEEK_SET);
     2.5  			write(fd, bootiso, 512);
     2.6  			n = WORD(bootiso + 2) - 512*(WORD(bootiso + 4) - 1);
     2.7 -			WORD(bootiso + 18) = chksum(0, n) - 1;
     2.8 +			WORD(bootiso + 18) = chksum(0, (unsigned short) n) - 1;
     2.9  		}
    2.10  		lseek(fd, 0UL, SEEK_SET);
    2.11  		write(fd, bootiso, 512);