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Update objc.x #145

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Update objc.x #145

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11 changes: 11 additions & 0 deletions Shadow.dylib/hooks/objc.x
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Original file line number Diff line number Diff line change
Expand Up @@ -57,6 +57,16 @@ static const char * _Nonnull * replaced_objc_copyClassNamesForImage(const char*
return NULL;
}

static id (*original_objc_getClass)(const char *name);
static id replaced_objc_getClass(const char *name) {
id result = original_objc_getClass(name);

if(isCallerTweak() || ![_shadow isAddrRestricted:(__bridge const void *)result]) {
return result;
}
return nil;
}

static Class (*original_NSClassFromString)(NSString* aClassName);
static Class replaced_NSClassFromString(NSString* aClassName) {
Class result = original_NSClassFromString(aClassName);
Expand Down Expand Up @@ -104,6 +114,7 @@ void shadowhook_objc(HKSubstitutor* hooks) {
}

void shadowhook_objc_hidetweakclasses(HKSubstitutor* hooks) {
MSHookFunction(objc_getClass, replaced_objc_getClass, (void **) &original_objc_getClass);
MSHookFunction(NSClassFromString, replaced_NSClassFromString, (void **) &original_NSClassFromString);
MSHookFunction(NXMapGet, replaced_NXMapGet, (void **) &original_NXMapGet);
MSHookFunction(NXHashGet, replaced_NXHashGet, (void **) &original_NXHashGet);
Expand Down