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* You can pass a list of arguments through `args` and a dictionary of environment variables through `env` into `entry_state` and `full_init_state`. The values in these structures can be strings or bitvectors, and will be serialized into the state as the arguments and environment to the simulated execution. The default `args` is an empty list, so if the program you're analyzing expects to find at least an `argv[0]`, you should always provide that!
* If you'd like to have `argc` be symbolic, you can pass a symbolic bitvector as `argc` to the `entry_state` and `full_init_state` constructors. Be careful, though: if you do this, you should also add a constraint to the resulting state that your value for argc cannot be larger than the number of args you passed into `args`.
* To use the call state, you should call it with `.call_state(addr, arg1, arg2, ...)`, where `addr` is the address of the function you want to call and `argN` is the Nth argument to that function, either as a python integer, string, or array, or a bitvector. If you want to have memory allocated and actually pass in a pointer to an object, you should wrap it in an PointerWrapper, i.e. `angr.PointerWrapper("point to me!")`. The results of this API can be a little unpredictable, but we're working on it.
>>> stub_func = angr.SIM_PROCEDURES['stubs']['ReturnUnconstrained'] # this is a CLASS
>>> proj.hook(0x10000, stub_func()) # hook with an instance of the class
>>> proj.is_hooked(0x10000) # these functions should be pretty self-explanitory
True
>>> proj.hooked_by(0x10000)
<ReturnUnconstrained>
>>> proj.unhook(0x10000)
>>> @proj.hook(0x20000, length=5)
... def my_hook(state):
... state.regs.rax = 1
>>> proj.is_hooked(0x20000)
True
```
Furthermore, you can use `proj.hook_symbol(name, hook)`, providing the name of a symbol as the first argument, to hook the address where the symbol lives
- Do you work in a **cybersecurity company**? Do you want to see your **company advertised in HackTricks**? or do you want to have access to the **latest version of the PEASS or download HackTricks in PDF**? Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)!
- **Join the** [**💬**](https://emojipedia.org/speech-balloon/) [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** me on **Twitter** [**🐦**](https://github.com/carlospolop/hacktricks/tree/7af18b62b3bdc423e11444677a6a73d4043511e9/\[https:/emojipedia.org/bird/README.md)[**@carlospolopm**](https://twitter.com/hacktricks_live)**.**
- **Share your hacking tricks by submitting PRs to the [hacktricks repo](https://github.com/carlospolop/hacktricks) and [hacktricks-cloud repo](https://github.com/carlospolop/hacktricks-cloud)**.
