From fe3c66a7c845a77c196fb086e57563a286bb13c9 Mon Sep 17 00:00:00 2001
From: topjohnwu <topjohnwu@gmail.com>
Date: Tue, 31 Jan 2017 04:20:36 +0800
Subject: [PATCH] No need to hack anything...

---
 Android.mk |  2 +-
 hacks.c    | 49 -------------------------------------------------
 su.c       |  6 +-----
 su.h       |  3 ---
 4 files changed, 2 insertions(+), 58 deletions(-)
 delete mode 100644 hacks.c

diff --git a/Android.mk b/Android.mk
index a72ed6db5..67f231b38 100644
--- a/Android.mk
+++ b/Android.mk
@@ -5,6 +5,6 @@ LOCAL_MODULE := su
 LOCAL_MODULE_TAGS := eng debug optional
 LOCAL_STATIC_LIBRARIES := libselinux
 LOCAL_C_INCLUDES := jni/selinux/libselinux/include/ jni/selinux/libsepol/include/ jni/su/sqlite3/
-LOCAL_SRC_FILES := su.c daemon.c activity.c db.c utils.c pts.c hacks.c sqlite3/sqlite3.c
+LOCAL_SRC_FILES := su.c daemon.c activity.c db.c utils.c pts.c sqlite3/sqlite3.c
 LOCAL_CFLAGS := -DSQLITE_OMIT_LOAD_EXTENSION -std=gnu11
 include $(BUILD_EXECUTABLE)
diff --git a/hacks.c b/hacks.c
deleted file mode 100644
index cbb5c6d08..000000000
--- a/hacks.c
+++ /dev/null
@@ -1,49 +0,0 @@
-#include <stdio.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include "su.h"
-#include "utils.h"
-
-enum {
-	H_NO_CONTEXT = 0x0001,
-};
-
-static struct {
-	const char *package;
-	int flags;
-	int uid;
-} apps_list[] = {
-	{ "com.keramidas.TitaniumBackup", H_NO_CONTEXT, },
-};
-
-void hacks_init() {
-	char oldCwd[512];
-	int i;
-	getcwd(oldCwd, sizeof(oldCwd));
-	chdir("/data/data");
-	for(i=0; i<(sizeof(apps_list)/sizeof(apps_list[0])); ++i) {
-		apps_list[i].uid = -1;
-		struct stat st_buf;
-		int ret = stat(apps_list[i].package, &st_buf);
-		LOGW("hacks: Testing (%s:%d:%d)", apps_list[i].package, ret, st_buf.st_uid);
-		if(ret)
-			continue;
-		apps_list[i].uid = st_buf.st_uid;
-	}
-}
-
-void hacks_update_context(struct su_context* ctxt) {
-	int i;
-	for(i=0; i<(sizeof(apps_list)/sizeof(apps_list[0])); ++i) {
-		LOGW("hacks: Testing (%s:%d), %d", apps_list[i].package, ctxt->from.uid);
-		if(apps_list[i].uid != ctxt->from.uid)
-			continue;
-
-		LOGW("hacks: Found app (%s:%d)", apps_list[i].package, ctxt->from.uid);
-		if(apps_list[i].flags & H_NO_CONTEXT) {
-			LOGW("hacks: Disabling context (%s:%d)", apps_list[i].package, ctxt->from.uid);
-			ctxt->to.context = NULL;
-		}
-	}
-}
diff --git a/su.c b/su.c
index 0c72b3c93..1b963dc89 100644
--- a/su.c
+++ b/su.c
@@ -479,8 +479,6 @@ static __attribute__ ((noreturn)) void allow(struct su_context *ctx) {
     char *arg0;
     int argc, err;
 
-    hacks_update_context(ctx);
-
     umask(ctx->umask);
     int send_to_app = 1;
 
@@ -541,7 +539,7 @@ static __attribute__ ((noreturn)) void allow(struct su_context *ctx) {
             arg0, PARG(0), PARG(1), PARG(2), PARG(3), PARG(4), PARG(5),
             (ctx->to.optind + 6 < ctx->to.argc) ? " ..." : "");
 
-    if(ctx->to.context && strcmp(ctx->to.context, "u:r:su_light:s0") == 0) {
+    if(ctx->to.context) {
         setexeccon(ctx->to.context);
     } else {
         setexeccon("u:r:su:s0");
@@ -803,8 +801,6 @@ int su_main_nodaemon(int argc, char **argv) {
         deny(&ctx);
     }
 
-    
-    hacks_init();
     read_options(&ctx);
     user_init(&ctx);
 
diff --git a/su.h b/su.h
index 9a8e3fa74..bdbd423bb 100644
--- a/su.h
+++ b/su.h
@@ -179,9 +179,6 @@ int su_main_nodaemon(int argc, char *argv[]);
 // deadbeat dad fork.
 int fork_zero_fucks();
 
-void hacks_init();
-void hacks_update_context(struct su_context* ctxt);
-
 // fallback to using /system/bin/log.
 // can't use liblog.so because this is a static binary.
 #ifndef LOGE