mirror of
https://github.com/chiteroman/PlayIntegrityFix.git
synced 2025-01-18 19:12:38 +02:00
57 lines
2.0 KiB
Bash
57 lines
2.0 KiB
Bash
RESETPROP="resetprop -n"
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[ -f /data/adb/magisk/util_functions.sh ] && [ "$(grep MAGISK_VER_CODE /data/adb/magisk/util_functions.sh | cut -d= -f2)" -lt 27003 ] && RESETPROP=resetprop_hexpatch
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# resetprop_hexpatch [-f|--force] <prop name> <new value>
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resetprop_hexpatch() {
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case "$1" in
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-f|--force) local FORCE=1; shift;;
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esac
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local NAME="$1"
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local NEWVALUE="$2"
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local CURVALUE="$(resetprop "$NAME")"
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[ ! "$NEWVALUE" -o ! "$CURVALUE" ] && return 1
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[ "$NEWVALUE" = "$CURVALUE" -a ! "$FORCE" ] && return 2
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local NEWLEN=${#NEWVALUE}
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if [ -f /dev/__properties__ ]; then
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local PROPFILE=/dev/__properties__
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else
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local PROPFILE="/dev/__properties__/$(resetprop -Z "$NAME")"
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fi
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[ ! -f "$PROPFILE" ] && return 3
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local NAMEOFFSET=$(echo $(strings -t d "$PROPFILE" | grep "$NAME") | cut -d ' ' -f 1)
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#<hex 2-byte change counter><flags byte><hex length of prop value><prop value + nul padding to 92 bytes><prop name>
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local NEWHEX="$(printf '%02x' "$NEWLEN")$(printf "$NEWVALUE" | od -A n -t x1 -v | tr -d ' \n')$(printf "%$((92-NEWLEN))s" | sed 's/ /00/g')"
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printf "Patch '$NAME' to '$NEWVALUE' in '$PROPFILE' @ 0x%08x -> \n[0000??$NEWHEX]\n" $((NAMEOFFSET-96))
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echo -ne "\x00\x00" \
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| dd obs=1 count=2 seek=$((NAMEOFFSET-96)) conv=notrunc of="$PROPFILE"
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echo -ne "$(printf "$NEWHEX" | sed -e 's/.\{2\}/&\\x/g' -e 's/^/\\x/' -e 's/\\x$//')" \
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| dd obs=1 count=93 seek=$((NAMEOFFSET-93)) conv=notrunc of="$PROPFILE"
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}
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# resetprop_if_diff <prop name> <expected value>
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resetprop_if_diff() {
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local NAME="$1"
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local EXPECTED="$2"
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local CURRENT="$(resetprop "$NAME")"
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[ -z "$CURRENT" ] || [ "$CURRENT" = "$EXPECTED" ] || $RESETPROP "$NAME" "$EXPECTED"
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}
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# resetprop_if_match <prop name> <value match string> <new value>
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resetprop_if_match() {
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local NAME="$1"
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local CONTAINS="$2"
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local VALUE="$3"
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[[ "$(resetprop "$NAME")" = *"$CONTAINS"* ]] && $RESETPROP "$NAME" "$VALUE"
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}
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# stub for boot-time
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ui_print() { return; }
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