Fix error charch and cant run screen or tmux in Android 11

META-INF/com/google/android/update-binary

@@ -0,0 +1,173 @@
+#!/sbin/sh
+
+#################
+# Initialization
+#################
+
+umask 022
+
+# Global vars
+TMPDIR=/dev/tmp
+PERSISTDIR=/sbin/.magisk/mirror/persist
+
+rm -rf $TMPDIR 2>/dev/null
+mkdir -p $TMPDIR
+
+# echo before loading util_functions
+ui_print() { echo "$1"; }
+
+require_new_magisk() {
+  ui_print "*******************************"
+  ui_print " Please install Magisk v19.0+! "
+  ui_print "*******************************"
+  exit 1
+}
+
+is_legacy_script() {
+  unzip -l "$ZIPFILE" install.sh | grep -q install.sh
+  return $?
+}
+
+print_modname() {
+  local len
+  len=`echo -n $MODNAME | wc -c`
+  len=$((len + 2))
+  local pounds=`printf "%${len}s" | tr ' ' '*'`
+  ui_print "$pounds"
+  ui_print " $MODNAME "
+  ui_print "$pounds"
+  ui_print "*******************"
+  ui_print " Powered by Magisk "
+  ui_print "*******************"
+}
+
+##############
+# Environment
+##############
+
+OUTFD=$2
+ZIPFILE=$3
+
+mount /data 2>/dev/null
+
+# Load utility functions
+[ -f /data/adb/magisk/util_functions.sh ] || require_new_magisk
+. /data/adb/magisk/util_functions.sh
+[ $MAGISK_VER_CODE -gt 18100 ] || require_new_magisk
+
+# Preperation for flashable zips
+setup_flashable
+
+# Mount partitions
+mount_partitions
+
+# Detect version and architecture
+api_level_arch_detect
+
+# Setup busybox and binaries
+$BOOTMODE && boot_actions || recovery_actions
+
+##############
+# Preparation
+##############
+
+# Extract prop file
+unzip -o "$ZIPFILE" module.prop -d $TMPDIR >&2
+[ ! -f $TMPDIR/module.prop ] && abort "! Unable to extract zip file!"
+
+$BOOTMODE && MODDIRNAME=modules_update || MODDIRNAME=modules
+MODULEROOT=$NVBASE/$MODDIRNAME
+MODID=`grep_prop id $TMPDIR/module.prop`
+MODPATH=$MODULEROOT/$MODID
+MODNAME=`grep_prop name $TMPDIR/module.prop`
+
+# Create mod paths
+rm -rf $MODPATH 2>/dev/null
+mkdir -p $MODPATH
+
+##########
+# Install
+##########
+
+if is_legacy_script; then
+  unzip -oj "$ZIPFILE" module.prop install.sh uninstall.sh 'common/*' -d $TMPDIR >&2
+
+  # Load install script
+  . $TMPDIR/install.sh
+
+  # Callbacks
+  print_modname
+  on_install
+
+  # Custom uninstaller
+  [ -f $TMPDIR/uninstall.sh ] && cp -af $TMPDIR/uninstall.sh $MODPATH/uninstall.sh
+
+  # Skip mount
+  $SKIPMOUNT && touch $MODPATH/skip_mount
+
+  # prop file
+  $PROPFILE && cp -af $TMPDIR/system.prop $MODPATH/system.prop
+
+  # Module info
+  cp -af $TMPDIR/module.prop $MODPATH/module.prop
+
+  # post-fs-data scripts
+  $POSTFSDATA && cp -af $TMPDIR/post-fs-data.sh $MODPATH/post-fs-data.sh
+
+  # service scripts
+  $LATESTARTSERVICE && cp -af $TMPDIR/service.sh $MODPATH/service.sh
+
+  ui_print "- Setting permissions"
+  set_permissions
+else
+  print_modname
+
+  unzip -o "$ZIPFILE" customize.sh -d $MODPATH >&2
+
+  if ! grep -q '^SKIPUNZIP=1$' $MODPATH/customize.sh 2>/dev/null; then
+    ui_print "- Extracting module files"
+    unzip -o "$ZIPFILE" -x 'META-INF/*' -d $MODPATH >&2
+
+    # Default permissions
+    set_perm_recursive $MODPATH 0 0 0755 0644
+  fi
+
+  # Load customization script
+  [ -f $MODPATH/customize.sh ] && . $MODPATH/customize.sh
+fi
+
+# Handle replace folders
+for TARGET in $REPLACE; do
+  ui_print "- Replace target: $TARGET"
+  mktouch $MODPATH$TARGET/.replace
+done
+
+if $BOOTMODE; then
+  # Update info for Magisk Manager
+  mktouch $NVBASE/modules/$MODID/update
+  cp -af $MODPATH/module.prop $NVBASE/modules/$MODID/module.prop
+fi
+
+# Copy over custom sepolicy rules
+if [ -f $MODPATH/sepolicy.rule -a -e $PERSISTDIR ]; then
+  ui_print "- Installing custom sepolicy patch"
+  PERSISTMOD=$PERSISTDIR/magisk/$MODID
+  mkdir -p $PERSISTMOD
+  cp -af $MODPATH/sepolicy.rule $PERSISTMOD/sepolicy.rule
+fi
+
+# Remove stuffs that don't belong to modules
+rm -rf \
+$MODPATH/system/placeholder $MODPATH/customize.sh \
+$MODPATH/README.md $MODPATH/.git* 2>/dev/null
+
+##############
+# Finalizing
+##############
+
+cd /
+$BOOTMODE || recovery_cleanup
+rm -rf $TMPDIR
+
+ui_print "- Done"
+exit 0

META-INF/com/google/android/updater-script

@@ -0,0 +1 @@
+#MAGISK

Makefile

@@ -0,0 +1,12 @@
+# Written by Draco (tytydraco @ GitHub)
+# Modified by alanndz
+
+HASH := $(shell git rev-parse --short HEAD)
+VERSION := $(shell cat module.prop | grep version= | sed "s/version=//")
+
+zip:
+	make clean || true
+	zip -x .git\* Makefile bin .gitignore *patch README* -r9 ChArch-Mod-$(VERSION)_$(HASH).zip .
+
+clean:
+	rm *.zip || true

customize.sh

@@ -0,0 +1,5 @@
+#!/system/bin/sh
+# Written by Draco (tytydraco @ GitHub)
+
+ui_print "[*] Setting executable permissions..."
+set_perm_recursive "$MODPATH/system/bin" root root 0777 0755

module.prop

@@ -0,0 +1,6 @@
+id=charch
+name=ChArch
+version=v2.0
+versionCode=2
+author=tytydraco
+description=ChArch for Android. Modified by alanndz

bin/charch → system/bin/charch

@@ -1,5 +1,6 @@
-#!/usr/bin/env bash
+#!/system/bin/sh
 # Written by Draco (tytydraco) @ GitHub
+export PATH="/sbin/.magisk/busybox:$PATH"
 
 # Log in red and exit
 err() {
@@ -17,7 +18,7 @@ done
 [[ "$(id -u)" -ne 0 ]] && err "No root permissions. Exiting."
 
 # Path containing rootfs tarball and all rootfs instances
-CHROOT_DIR="$HOME/charch"
+CHROOT_DIR="/data/unencrypted/charch"
 
 # The name of the current rootfs instance
 ROOTFS="rootfs"
@@ -81,7 +82,6 @@ safe_mount_dir() {
 	then
 		mkdir -p "$guest_mount"
 		mount --rbind "$1" "$guest_mount"
-		mount --make-rslave "$guest_mount"
 	elif [[ -n "$2" ]]
 	then
 		mkdir -p "$guest_mount"
@@ -102,16 +102,35 @@ safe_mount_file() {
 		mkdir -p "${guest_mount%/*}"
 		[[ ! -f "$guest_mount" ]] && touch "$guest_mount"
 		mount --bind "$1" "$guest_mount"
-		mount --make-slave "$guest_mount"
 	fi
 }
 
+# Find the outermost mountpoint that charch is currently executing from
+find_mountpoint() {
+	local path=`readlink -f "$1"`
+	until mountpoint -q "$path" &>/dev/null
+	do
+		path=${path%/*}
+		path=${path:-/}
+
+		# Break if we reach the end of the filesystem
+		[[ "$path" == "/" ]] && ! mountpoint -q "/" &> /dev/null && break
+	done
+	echo "$path"
+}
+
 # Mount essentials and remound current mount as suid,exec
 setup_mounts() {
 	safe_mount_dir /dev tmpfs
+	safe_mount_dir /dev/pts devpts
 	safe_mount_dir /sys sysfs
 	safe_mount_dir /proc proc
 	safe_mount_file /etc/resolv.conf
+
+	# Remount data partition with suid to allow sudo to function
+	local root_mount=`find_mountpoint "$CHROOT_DIR"`
+	mount | awk '{print $3}' | grep -q "^$root_mount\$" &&
+		mount -o remount,suid,exec "$root_mount" &> /dev/null
 }
 
 # Enter the chroot with the provided command

bin/cparch → system/bin/cparch

@@ -1,5 +1,6 @@
-#!/usr/bin/env bash
+#!/system/bin/sh
 # Written by Draco (tytydraco) @ GitHub
+export PATH="/sbin/.magisk/busybox:$PATH"
 
 # Log in red and exit
 err() {
@@ -17,7 +18,7 @@ done
 [[ "$(id -u)" -ne 0 ]] && err "No root permissions. Exiting."
 
 # Path containing rootfs tarball and all rootfs instances
-CHROOT_DIR="$HOME/charch"
+CHROOT_DIR="/data/unencrypted/charch"
 
 usage() {
 	echo -n "Usage: $(basename "$0") [OPTIONS] <OLD NAME> <NEW NAME>
@@ -61,7 +62,7 @@ fi
 [[ -d "$CHROOT_DIR/$2" ]] && err "Rootfs instance with name $2 already exists. Exiting."
 
 # Unmount and exit on fail
-! unarch -d "$CHROOT_DIR" "$1" && exit 1
+! unarch -d "$CHROOT_DIR" -n "$1" && exit 1
 
 # Clone
 cp -Ra "$CHROOT_DIR/$1" "$CHROOT_DIR/$2"

bin/lsarch → system/bin/lsarch

@@ -1,5 +1,6 @@
-#!/usr/bin/env bash
+#!/system/bin/sh
 # Written by Draco (tytydraco) @ GitHub
+export PATH="/sbin/.magisk/busybox:$PATH"
 
 # Log in red and exit
 err() {
@@ -17,7 +18,7 @@ done
 [[ "$(id -u)" -ne 0 ]] && err "No root permissions. Exiting."
 
 # Path containing rootfs tarball and all rootfs instances
-CHROOT_DIR="$HOME/charch"
+CHROOT_DIR="/data/unencrypted/charch"
 
 usage() {
 	echo -n "Usage: $(basename "$0") [OPTIONS]

bin/mkarch → system/bin/mkarch

@@ -1,5 +1,6 @@
-#!/usr/bin/env bash
+#!/system/bin/sh
 # Written by Draco (tytydraco) @ GitHub
+export PATH="/sbin/.magisk/busybox:$PATH"
 
 # Log in red and exit
 err() {
@@ -17,7 +18,7 @@ done
 [[ "$(id -u)" -ne 0 ]] && err "No root permissions. Exiting."
 
 # Path containing rootfs tarball and all rootfs instances
-CHROOT_DIR="$HOME/charch"
+CHROOT_DIR="/data/unencrypted/charch"
 
 # The name of the current rootfs instance
 ROOTFS="rootfs"

bin/rmarch → system/bin/rmarch

@@ -1,5 +1,6 @@
-#!/usr/bin/env bash
+#!/system/bin/sh
 # Written by Draco (tytydraco) @ GitHub
+export PATH="/sbin/.magisk/busybox:$PATH"
 
 # Log in red and exit
 err() {
@@ -17,7 +18,7 @@ done
 [[ "$(id -u)" -ne 0 ]] && err "No root permissions. Exiting."
 
 # Path containing rootfs tarball and all rootfs instances
-CHROOT_DIR="$HOME/charch"
+CHROOT_DIR="/data/unencrypted/charch"
 
 # The name of the current rootfs instance
 ROOTFS="rootfs"

bin/unarch → system/bin/unarch

@@ -1,5 +1,6 @@
-#!/usr/bin/env bash
+#!/system/bin/sh
 # Written by Draco (tytydraco) @ GitHub
+export PATH="/sbin/.magisk/busybox:$PATH"
 
 # Log in red and exit
 err() {
@@ -17,7 +18,7 @@ done
 [[ "$(id -u)" -ne 0 ]] && err "No root permissions. Exiting."
 
 # Path containing rootfs tarball and rootfs instances
-CHROOT_DIR="$HOME/charch"
+CHROOT_DIR="/data/unencrypted/charch"
 
 # The name of the current rootfs instance
 ROOTFS="rootfs"