# Print the (hex) textual representation of numbers. == code # instruction effective address register displacement immediate # . op subop mod rm32 base index scale r32 # . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes to-hex-char: # in/eax : nibble -> out/eax : byte # no error checking; accepts argument in eax # if (eax <= 9) return eax + '0' 3d/compare-eax-with 0x9/imm32/9 7f/jump-if-greater $to-hex-char:else/disp8 05/add-to-eax 0x30/imm32/0 c3/return $to-hex-char:else: # otherwise return eax + 'a' - 10 05/add-to-eax 0x57/imm32/a-10 c3/return append-byte-hex: # f : (address stream), n : int # . prologue 55/push-ebp 89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp # . save registers 50/push-eax # AL = convert upper nibble to hex 8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 0/r32/eax 0xc/disp8 . # copy *(ebp+12) to eax c1/shift 5/subop/logic-right 3/mod/direct 0/rm32/eax . . . . . 4/imm8 # shift eax right by 4 bits, while padding zeroes 25/and-eax 0xf/imm32 # . AL = to-hex-char(AL) e8/call to-hex-char/disp32 # append-byte(f, AL) # . . push args 50/push-eax ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 8/disp8 . # push *(ebp+8) # . . call e8/call append-byte/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp # AL = convert lower nibble to hex 8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 0/r32/eax 0xc/disp8 . # copy *(ebp+12) to eax 25/and-eax 0xf/imm32 # . AL = to-hex-char(AL) e8/call to-hex-char/disp32 # append-byte(f, AL) # . . push args 50/push-eax ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 8/disp8 . # push *(ebp+8) # . . call e8/call append-byte/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp $append-byte-hex:end: # . restore registers 58/pop-to-eax # . epilogue 89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp 5d/pop-to-ebp c3/return test-append-byte-hex: # - check that append-byte-hex adds the hex textual representation # setup # . clear-stream(_test-stream) # . . push args 68/push _test-stream/imm32 # . . call e8/call clear-stream/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp # append-byte-hex(_test-stream, 0xa) # exercises digit, non-digit as well as leading zero # . . push args 68/push 0xa/imm32 68/push _test-stream/imm32 # . . call e8/call append-byte-hex/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp # check-stream-equal(_test-stream, "0a", msg) # . . push args 68/push "F - test-append-byte-hex"/imm32 68/push "0a"/imm32 68/push _test-stream/imm32 # . . call e8/call check-stream-equal/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp
#!/bin/sh
# First we define the function
ConfirmOrExit ()
{
while true
do
echo -n "Please confirm (y or n) :"
read CONFIRM
case $CONFIRM in
y|Y|YES|yes|Yes) break ;;
n|N|no|NO|No)
echo "Aborting - you entered $CONFIRM"
exit
;;
*) echo "Please enter only y or n"
esac
done
echo "You entered $CONFIRM. Continuing ..."
}
# Absolute path to this script, e.g. /home/user/bin/foo.sh
SCRIPT=$(readlink -f "$0")
# Absolute path this script is in, thus /home/user/bin
SCRIPTPATH=$(dirname "$SCRIPT")
DIR=$(dirname "$SCRIPTPATH");
DIR_CONF=$DIR"/conf"
echo "SCRIPT=$SCRIPT";
echo "SCRIPTPATH=$SCRIPTPATH";
echo "DIR=$DIR";
echo "DIR_CONF=$DIR_CONF";
ConfirmOrExit
#installer overwrite system init script
cp -R $DIR_CONF/etc/ssh/sshd_config /etc/ssh/sshd_config
sh /etc/rc.d/sshd start
exit 0;