machobot
A Python toolbox for Mach-O files analysis. Heavily relies on
macholib.
Installation
For usage
$ [sudo] pip install machobot
For development
$ pip install nose macholib $ git clone https://github.com/rodionovd/machobot.git machobot $ cd ./machobot $ nosetests # run the test suite
Usage
-
As a command-line util:
$ inject_dylib ./target "@rpath/mylib.dylib" -
As a Python module:
import machobotExample usage:
import machobot.dylib as dylib dylib.insert_load_command("output.a", "@executable_path/../../libk.dylib")
Modules
dylib
insert_load_command (target_path, library_install_name)
Inserts a new LC_LOAD_DYLIB load command into the target Mach-O
header.
| Argument | Description |
|---|---|
target_path |
A path to the target Mach-O executable file. This file will be overwritten. |
library_install_name |
An install name for the library to inject. This string is used as a part of the load command. |
| Return value |
|---|
Returns True if everything is OK. Otherwise rises an exception. |
macho_dependencies_list (target_path, header_magic=None)
Generates a list of libraries the given Mach-O file depends on.
In that list a single library is represented by its "install path": for some libraries it would be a full file path, and for others it would be a relative path (sometimes with dyld templates like @executable_path or @rpath in it).
Note: I don't know any reason why would some architectures of a fat Mach-O depend on certain libraries while others don't, but it's technically possible. So that's why you may want to specify the header_magic value for a particular header.
| Argument | Description |
|---|---|
target_path |
A path to the target Mach-O executable file. |
header_magic |
Mach-O MAGIC value for a header you want to inspect. If this argument is not provided, the function returns a list of the first header's dependencies. |
| Return value |
|---|
An object with two properties: weak and strong that hold lists
of weak and strong dependencies respectively. |
See machobot/tests/test_dylib.py for usage examples.
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