Patch

patch.sh

#!/bin/sh
if [ -z "${R2PIPE_IN}" ]; then
  echo "r2 -wqi ${0} /path/to/binary"
  exit 1
fi
R="r2p"
hit="$(${R} '/x 83f81e0f8417')"
if [ -z "${hit}" ]
then
  ${R} '?E Failed :(' 1>&2
  hit="$(${R} '/x 83f81e909090909090')"
  if [ -n "${hit}" ]
  then
    ${R} '?e Looks like it has been patched already'
  fi
  exit 1
fi
${R} 's hit0_0+3'
${R} '?E Day of month == 30 before:'
${R} 'pd 1'
${R} 'wx 909090909090'
${R} '?e After:'
${R} 'pd 6'
hit="$(${R} '/x 83f802746283f818')"
if [ -z "${hit}" ]
then
  ${R} '?e Failed :(' 1>&2
  exit 1
fi
${R} 's hit1_0+3'
${R} '?E Day of month == 2 before:'
${R} 'pd 1'
${R} 'wx eb'
${R} '?e After:'
${R} 'pd 1'
${R} 's +0x69'
${R} '?E Month != 7 before:'
${R} 'pd 1'
${R} 'wx 9090'
${R} '?e After:'
${R} 'pd 2'