difuse-phone-android/bsed.sh
2015-07-06 15:54:21 +02:00

48 lines
2.1 KiB
Bash
Executable file

#!/bin/bash
# Script found at http://everydaywithlinux.blogspot.fr/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
chmod --reference ${FILE} ${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
}
patch_strings_in_file libs/armeabi-v7a/liblinphone-armeabi-v7a.so "./obj/local/armeabi-v7a/libffmpeg-linphone-arm.so" "libffmpeg-linphone-arm.so"
patch_strings_in_file libs/x86/liblinphone-x86.so "./obj/local/x86/libffmpeg-linphone-x86.so" "libffmpeg-linphone-x86.so"