-# courtesy http://everydaywithlinux.blogspot.com.au/2012/11/patch-strings-in-binary-files-with-sed.html
-function patch_strings_in_file() {
- local FILE="$1"
- local PATTERN="$2"
- local REPLACEMENT="$3"
-
- # Find all unique strings in FILE that contain the pattern
- STRINGS=$(strings ${FILE} | grep ${PATTERN} | sort -u -r)
-
- if [ "${STRINGS}" != "" ] ; then
- echo "File '${FILE}' contain strings with '${PATTERN}' in them:"
-
- for OLD_STRING in ${STRINGS} ; do
- # Create the new string with a simple bash-replacement
- NEW_STRING=${OLD_STRING//${PATTERN}/${REPLACEMENT}}
-
- # Create null terminated ASCII HEX representations of the strings
- OLD_STRING_HEX="$(echo -n ${OLD_STRING} | xxd -g 0 -u -ps -c 256)00"
- NEW_STRING_HEX="$(echo -n ${NEW_STRING} | xxd -g 0 -u -ps -c 256)00"
-
- if [ ${#NEW_STRING_HEX} -le ${#OLD_STRING_HEX} ] ; then
- # Pad the replacement string with null terminations so the
- # length matches the original string
- while [ ${#NEW_STRING_HEX} -lt ${#OLD_STRING_HEX} ] ; do
- NEW_STRING_HEX="${NEW_STRING_HEX}00"
- done
-
- # Now, replace every occurrence of OLD_STRING with NEW_STRING
- echo -n "Replacing ${OLD_STRING} with ${NEW_STRING}... "
- hexdump -ve '1/1 "%.2X"' ${FILE} | \
- sed "s/${OLD_STRING_HEX}/${NEW_STRING_HEX}/g" | \
- xxd -r -p > ${FILE}.tmp
- mv ${FILE}.tmp ${FILE}
- echo "Done!"
- else
- echo "New string '${NEW_STRING}' is longer than old" \
- "string '${OLD_STRING}'. Skipping."
- fi
- done
- fi
-}
-
-# Strip object files in ar archives from bad path strings
-for f in `find $br -type f -name \*.a`; do
- td=`mktemp -d`
- pushd $td
- ar x $f
-
- for g in `find . -type f -print0 |xargs -0 file --no-dereference --no-pad |grep ': ELF' |cut -f1 -d:`; do
- strip $g
- grep "$br" $g || continue
-
- # Replace the bad path with the good one, padded by nulls
- patch_strings_in_file $g "$br"
- done
-
- ar r $f *
- popd
- rm -rf $td
-done
-
-# Replace paths in libraries strings
-for f in `find $br/usr/lib/rvm/rubies -type f -print0 |xargs -0 file --no-dereference --no-pad |grep ': ELF' |cut -f1 -d:`; do
- grep "$br" $f || continue
-
- # Replace the bad path with the good one, padded by nulls
- patch_strings_in_file $f "$br"
-done
+# Replace bad paths in all remaining files
+# Padding with zeroes broke the LOAD_PATH in libruby, therefore prepend path with harmless forward slashes
+printf -vch "%${#br}s" ""
+slashes=$(printf "%s" "${ch// //}")
+find $br -type f -print0 | xargs -0 sed -i "s,$br,$slashes,g"