LowLevel/Luma3DS-3GX
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Little fixes

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This commit is contained in:
Aurora 2016-11-16 14:52:50 +01:00
parent 6b8474b7b9
commit 2a563eddd0
2 changed files with 14 additions and 34 deletions
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2
injector/patches/romfsredir.s
View File

@ -10,7 +10,7 @@
.arm
; fsOpenFileDirectly function will be redirected here.
; If the requested archive is not ROMFS, we'll return
; to the original fucntion.
; to the original function.
openFileDirectlyHook:
cmp r3, #3
beq openRomfs

46
injector/source/patcher.c
View File

@ -263,25 +263,25 @@ static u32 findFunctionCommand(u8* code, u32 size, u32 command)
{
u32 func = 0;
for(u32 i = 0; i < size && !func; i += 4)
for(u32 i = 0; !func && i <= size - 4; i += 4)
if(*(u32 *)(code + i) == command) func = i;
return !func ? 0 : findNearestStmfd(code, func);
return findNearestStmfd(code, func);
}
static inline u32 findThrowFatalError(u8* code, u32 size)
{
u32 connectToPort = 0;
for(u32 i = 0; i < size && !connectToPort; i += 4)
for(u32 i = 4; !connectToPort && i <= size - 4; i += 4)
if(*(u32 *)(code + i) == 0xEF00002D) connectToPort = i - 4;
if(!connectToPort) return 0;
u32 func = 0;
for(u32 i = 0; i < size && !func; i += 4)
{
for(u32 i = 0; !func && i <= size - 4; i += 4)
{
if(*(u32 *)(code + i) != MAKE_BRANCH_LINK(i, connectToPort)) continue;
func = findNearestStmfd(code, i);
@ -333,23 +333,15 @@ static inline bool loadTitleLocaleConfig(u64 progId, u8 *regionId, u8 *languageI
if(R_FAILED(openLumaFile(&file, path))) return true;
bool ret;
bool ret = false;
u64 fileSize;
if(R_FAILED(IFile_GetSize(&file, &fileSize)) || fileSize < 6 || fileSize > 8)
{
ret = false;
goto exit;
}
if(R_FAILED(IFile_GetSize(&file, &fileSize)) || fileSize < 6 || fileSize > 8) goto exit;
char buf[8];
u64 total;
if(R_FAILED(IFile_Read(&file, &total, buf, fileSize)))
{
ret = false;
goto exit;
}
if(R_FAILED(IFile_Read(&file, &total, buf, fileSize))) ret = false;
u32 i,
j;
@ -396,33 +388,21 @@ static bool patchRomfsRedirection(u64 progId, u8* code, u32 size)
if(R_FAILED(openLumaFile(&file, path))) return true;
bool ret;
bool ret = false;
u64 romfsSize;
if(R_FAILED(IFile_GetSize(&file, &romfsSize)))
{
ret = false;
goto exit;
}
if(R_FAILED(IFile_GetSize(&file, &romfsSize))) goto exit;
u64 total;
u32 header;
u32 magic;
if(R_FAILED(IFile_Read(&file, &total, &header, 4)) || total != 4 || header != 0x43465649)
{
ret = false;
goto exit;
}
if(R_FAILED(IFile_Read(&file, &total, &magic, 4)) || total != 4 || magic != 0x43465649) ret = false;
u32 fsOpenFileDirectly = findFunctionCommand(code, size, 0x08030204),
fsOpenLinkFile = findFunctionCommand(code, size, 0x80C0000),
throwFatalError = findThrowFatalError(code, size);
if(!fsOpenFileDirectly || !throwFatalError)
{
ret = false;
goto exit;
}
if(!fsOpenFileDirectly || !throwFatalError) goto exit;
//Setup the payload
memcpy(code + throwFatalError, romfsredir_bin, romfsredir_bin_size);