From f46773ba64b808eb40a743bd5aeed9b304bbd88e Mon Sep 17 00:00:00 2001
From: Aurora Wright <davidone92@katamail.com>
Date: Wed, 20 Sep 2017 01:02:14 +0200
Subject: [PATCH] Stub isTitleAllowed

---
 sysmodules/loader/source/memory.c  |  8 ++++++++
 sysmodules/loader/source/memory.h  |  1 +
 sysmodules/loader/source/patcher.c | 19 +++++++++++++++++++
 3 files changed, 28 insertions(+)

diff --git a/sysmodules/loader/source/memory.c b/sysmodules/loader/source/memory.c
index ec7a392..2836802 100644
--- a/sysmodules/loader/source/memory.c
+++ b/sysmodules/loader/source/memory.c
@@ -9,6 +9,14 @@ void memcpy(void *dest, const void *src, u32 size)
         destc[i] = srcc[i];
 }
 
+void memset32(void *dest, u32 filler, u32 size)
+{
+    u32 *dest32 = (u32 *)dest;
+
+    for(u32 i = 0; i < size / 4; i++)
+        dest32[i] = filler;
+}
+
 int memcmp(const void *buf1, const void *buf2, u32 size)
 {
     const u8 *buf1c = (const u8 *)buf1,
diff --git a/sysmodules/loader/source/memory.h b/sysmodules/loader/source/memory.h
index b7cf593..85afe06 100644
--- a/sysmodules/loader/source/memory.h
+++ b/sysmodules/loader/source/memory.h
@@ -3,5 +3,6 @@
 #include <3ds/types.h>
 
 void memcpy(void *dest, const void *src, u32 size);
+void memset32(void *dest, u32 filler, u32 size);
 int memcmp(const void *buf1, const void *buf2, u32 size);
 u8 *memsearch(u8 *startPos, const void *pattern, u32 size, u32 patternSize);
\ No newline at end of file
diff --git a/sysmodules/loader/source/patcher.c b/sysmodules/loader/source/patcher.c
index 5997120..491cb5a 100644
--- a/sysmodules/loader/source/patcher.c
+++ b/sysmodules/loader/source/patcher.c
@@ -761,6 +761,25 @@ void patchCode(u64 progId, u16 progVer, u8 *code, u32 size, u32 textSize, u32 ro
             }
         }
 
+        if(progVer > 0x12)
+        {
+            static const u8 pattern[] = {
+                0x00, 0xB1, 0x15, 0x00
+            };
+
+            u8 *roStart = code + ((textSize + 4095) & 0xFFFFF000),
+               *start = memsearch(roStart, pattern, roSize, sizeof(pattern));
+
+            if(start == NULL) goto error;
+
+            start++;
+            u8 *end;
+            for(end = start + 8; *(u32 *)end != 0xCC010000; end += 8)
+                if(end >= roStart + roSize - 12) goto error;
+
+            memset32(start, 0, end - start);
+        }
+
         s64 nbSection0Modules;
         svcGetSystemInfo(&nbSection0Modules, 26, 0);