Improve phh su installation

jni/su

@@ -1 +1 @@
-Subproject commit 1d2eb13cae13380bbccff4b0ba77c14140158ea8
+Subproject commit 8475cecfeb47fbc596898fb9fb296b5027bdc46b

scripts/flash_script.sh

@@ -381,13 +381,14 @@ if (! $SUPERSU); then
   fi
 
   # SuperSU already have root, no need to install root
-  if [ ! -d /magisk/phh ]; then
-    ui_print "- Installing phh's SuperUser"
-    mkdir -p /magisk/phh/bin
-    mkdir -p /magisk/phh/su.d
+  if [ ! -d /magisk/phh -o `grep_prop versionCode /magisk/phh/module.prop` -lt \
+    `grep_prop versionCode $INSTALLER/common/phh/module.prop` ]; then
+    ui_print "- Installing/Upgrading phh's SuperUser"
+    mkdir -p /magisk/phh/bin 2>/dev/null
+    mkdir -p /magisk/phh/su.d 2>/dev/null
     cp -af $INSTALLER/common/phh/. /magisk/phh
     cp -af $BINDIR/su $BINDIR/sepolicy-inject /magisk/phh/bin
-    chmod -R 755 /magisk/phh
+    chmod -R 755 /magisk/phh/bin
   fi
 fi
 

zip_static/common/phh/module.prop

@@ -1,7 +1,7 @@
 id=phh
 name=phh's SuperUser
-version=r266-2
-versionCode=4
+version=r266 (topjohnwu v1)
+versionCode=5
 author=phhusson & topjohnwu
 description=OpenSource SELinux-capable SuperUser
 support=http://forum.xda-developers.com/showthread.php?t=3216394

zip_static/common/phh/service.sh

@@ -9,19 +9,6 @@ log_print() {
   log -p i -t phh "$1"
 }
 
-launch_daemonsu() {
-  # Revert to original path, legacy issue
-  case $PATH in
-    *busybox* )
-      export PATH=$OLDPATH
-      ;;
-  esac
-  # Switch contexts
-  echo "u:r:su_daemon:s0" > /proc/self/attr/current
-  # Start daemon
-  exec /sbin/su --daemon
-}
-
 # Disable the other root
 [ -d "/magisk/zzsupersu" ] && touch /magisk/zzsupersu/disable
 
@@ -47,4 +34,5 @@ for script in $MODDIR/su.d/* ; do
 done
 
 log_print "Starting su daemon"
-(launch_daemonsu &)
+[ ! -z $OLDPATH ] && export PATH=$OLDPATH
+/sbin/su --daemon