| /* InspectiveC by DavidGoldman | |
| * Place this file in `/usr/lib/cycript0.9/com/golddavid/inspectivec.cy` | |
| * Run `@import com.golddavid.inspectivec` in cycript to use. | |
| * | |
| * This file has been adapted from | |
| * https://github.com/DavidGoldman/InspectiveC/blob/master/cycript/InspectiveC.cy | |
| * to use new cycript module features. | |
| * | |
| * This module is based on | |
| * https://github.com/limneos/classdump-dyld/blob/master/classdumpdyldlib/classdumpdyld.cy |
| #include <stdio.h> | |
| #include <stdlib.h> | |
| #include <limits.h> | |
| /* prints each character representation of the byte one at a time. | |
| * no memory management required; slower, than using a buffer. | |
| */ | |
| #define printBitRepresentationEach(a) \ | |
| ({ \ | |
| for (size_t _i = (sizeof(a) * CHAR_BIT); _i; _i--) { \ |
Cydia provides "virtual dependency" packages, leveraging dpkg, to allow packages to only be installed on certain kinds of devices.
I have not been able to find official documentation on these packages. Their package names are prefixed with "cy+". To find out exactly what these packages represented I ran a few command on two devices.
iPhone 5, iOS 10.3.3:
| ## LLVM syntax highlighting for nano by Leptos | |
| ## Based off the official nano C/C++ template | |
| syntax ll "\.ll$" | |
| magic "LLVM source" | |
| comment ";" | |
| # all numeral literals | |
| color brightcyan "-?[0-9]*" |
| function lw() { | |
| for ARG in "$@" | |
| do | |
| WHICH_RESULT=$(which "$ARG") && { | |
| [[ -e "$WHICH_RESULT" ]] && { | |
| l "$WHICH_RESULT" | |
| continue | |
| } | |
| } | |
| echo "$WHICH_RESULT" |
| // | |
| // main.c | |
| // polymaths | |
| // | |
| // Created by Leptos on 9/18/18. | |
| // Copyright © 2018 Leptos. All rights reserved. | |
| // | |
| #include <stdio.h> | |
| #include <math.h> |
Cycript is a tool I find very helpful. It's an effective REPL for Objective-C. When I updated to macOS Mojave, I found that cycript no longer worked because it was linked against an old version of Ruby. After attempting to compile from source, I tried another solution. install_name_tool is an open source tool for modifying the names of linked shared libraries in a Mach-O.
$ install_name_tool -change /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/libruby.2.0.0.dylib /System/Library/Frameworks/Ruby.framework/Versions/Current/usr/lib/libruby.dylib Cycript.lib/cycript-apl
$ install_name_tool -change /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/libruby.2.0.0.dylib /System/Library/Frameworks/Ruby.framework/Versions/Current/usr/lib/libruby.dylib Cycript.lib/libcycript.dylib
Prompted by a tweet by NSHipster, and a subsequent thread, I wanted to find out how Mojave dynamic wallpapers worked. NSHipster and ole reverse engineered the file format. In the Twitter thread, NSHipster mentions an edge case: What happens above 66ºN (latitude)?
The first thing to do was find out what process handles the wallpaper on macOS. I primarily do iOS research, and honestly had no idea. I opened Console, searched for "solar", and then changed my static wallpaper to a dynamic one. Voila!
Message: index: 7 next: 14815.999366
Process: Dock
| // | |
| // LMApiaryDeviceCrypto.h | |
| // | |
| // Created by Leptos on 11/18/18. | |
| // Copyright © 2018 Leptos. All rights reserved. | |
| // | |
| #import <Foundation/Foundation.h> | |
| #define kYouTubeBase64EncodedProjectKey @"vOU14u6GkupSL2pLKI/B7L3pBZJpI8W92RoKHJOu3PY=" |
While class dumping YouTube Music, I ran into two problematic properties in a protobuf-generated class.
The property largestImageSource had the type encoding
{YTImageSource=@@{YTClientResource=@@{optional<unsigned int>=B(?={dummy_type=[4{empty_struct=}]}I)}}{optional<unsigned int>=B(?={dummy_type=[4{empty_struct=}]}I)}{optional<unsigned int>=B(?={dummy_type=[4{empty_struct=}]}I)}}