can i get the category Class, such as name

[ticsmatic]

i read the "__objc_catlist" section data, the i used clsPointer.name, the value is category name, i also want get category cls info.
for example:
// the source code is :

@interface UIImage (AFNetworkingSafeImageLoading)
+ (UIImage *)af_safeImageWithData:(NSData *)data;
@end

static NSLock* imageLock = nil;

@implementation UIImage (AFNetworkingSafeImageLoading)

+ (UIImage *)af_safeImageWithData:(NSData *)data {
    UIImage* image = nil;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        imageLock = [[NSLock alloc] init];
    });
    
    [imageLock lock];
    image = [UIImage imageWithData:data];
    [imageLock unlock];
    return image;
}

@end

used macho-kit, the result is AFNetworkingSafeImageLoading, but i also want to get the class UIImage, how can i get the info

[kabiroberai]

MKObjCCategory has a cls property which is either a pointer to a class or is an external binding to a class which should allow you to get at least the name. I have a feeling you're treating a category pointer as a class pointer – you might be missing a level of indirection.

[DeVaukz]

If the category is for an external class, the cls pointer in the objc_category struct will be NULL (0x0). There will be a BIND_TYPE_POINTER entry in the bindings table that instructs the dynamic linker to populate the address of the pointer with the address of the class at load time.

When parsing this with Mach-O Kit, <the MKObjCCategory instance>.cls.address will return 0, and <the MKObjCCategory instance>.cls.pointee will return an empty result. You would need to iterate the binding actions (<the MKMachOImage instance>.bindingsInfo.actions), looking for an MKBindAction with an address that matches the address of the cls pointer. This should be a MKBindActionBind and the symbolName will be _OBJC_CLASS_$_<class name>.

I realize this is not very straightforward. I do plan to make it straightforward to determine if a pointer is an external reference, and retrieve the matching binding entry.