Add TWFunc::Property_Override(name, value) to override properties

using libresetprop

Change-Id: Ic49e187698c714f8a629d20ceddc40e823555477

Android.mk

@@ -398,6 +398,16 @@ endif
 ifneq ($(TW_CLOCK_OFFSET),)
 	LOCAL_CFLAGS += -DTW_CLOCK_OFFSET=$(TW_CLOCK_OFFSET)
 endif
+ifneq ($(TW_OVERRIDE_SYSTEM_PROPS),)
+    TW_INCLUDE_LIBRESETPROP := true
+    LOCAL_CFLAGS += -DTW_OVERRIDE_SYSTEM_PROPS=$(TW_OVERRIDE_SYSTEM_PROPS)
+endif
+ifneq ($(TW_INCLUDE_LIBRESETPROP),)
+    LOCAL_SHARED_LIBRARIES += libresetprop
+    LOCAL_C_INCLUDES += external/magisk-prebuilt/include
+    LOCAL_CFLAGS += -DTW_INCLUDE_LIBRESETPROP
+endif
+
 TWRP_REQUIRED_MODULES += \
     dump_image \
     erase_image \

prebuilt/Android.mk

@@ -577,7 +577,7 @@ ifeq ($(TW_INCLUDE_CRYPTO), true)
     endif
 endif
 
-ifneq (,$(filter $(TW_INCLUDE_REPACKTOOLS) $(TW_INCLUDE_RESETPROP), true))
+ifneq (,$(filter $(TW_INCLUDE_REPACKTOOLS) $(TW_INCLUDE_RESETPROP) $(TW_INCLUDE_LIBRESETPROP), true))
     ifeq ($(wildcard external/magisk-prebuilt/Android.mk),)
         $(warning Magisk prebuilt tools not found!)
         $(warning Please place https://github.com/TeamWin/external_magisk-prebuilt)

twrp-functions.cpp

@@ -59,6 +59,10 @@ extern "C" {
 	#include "libcrecovery/common.h"
 }
 
+#ifdef TW_INCLUDE_LIBRESETPROP
+    #include <resetprop.h>
+#endif
+
 struct selabel_handle *selinux_handle;
 
 /* Execute a command */
@@ -1315,4 +1319,13 @@ bool TWFunc::Is_TWRP_App_In_System() {
 	DataManager::SetValue("tw_app_installed_in_system", 0);
 	return false;
 }
+
+int TWFunc::Property_Override(string Prop_Name, string Prop_Value) {
+#ifdef TW_INCLUDE_LIBRESETPROP
+    return setprop(Prop_Name.c_str(), Prop_Value.c_str(), false);
+#else
+    return -2;
+#endif
+}
+
 #endif // ndef BUILD_TWRPTAR_MAIN

twrp-functions.hpp

@@ -107,6 +107,7 @@ public:
 	static std::string get_cache_dir(); // return the cache partition existence
 	static void check_selinux_support(); // print whether selinux support is enabled to console
 	static bool Is_TWRP_App_In_System(); // Check if the TWRP app is installed in the system partition
+	static int Property_Override(string Prop_Name, string Prop_Value); // Override properties (including ro. properties)
 
 private:
 	static void Copy_Log(string Source, string Destination);