fishhook 0.2.0

A library that enables dynamically rebinding symbols in Mach-O binaries at runtime
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# fishhook


## fishhook-rs

A Rust port of [fishhook](https://github.com/facebook/fishhook) — a library that enables dynamically rebinding symbols
for Linux and Mach-O binaries at runtime. Useful for intercepting system functions like `malloc`, `free`, or `open`.

> **Platform support**: Currently tested on Linux (x86_64) and macOS (aarch64-apple-darwin)

### Installation

Add to your `Cargo.toml`:

```toml
[dependencies]
fishhook = "0.2"
```

### Usage
Example below uses [ctor](https://github.com/mmastrac/rust-ctor) for invoking ***init()*** first
```rust
use fishhook::{register, Rebinding};

#[ctor::ctor]
fn init() {
    unsafe {
        register(vec![
           Rebinding {
               name: "malloc".to_string(),
               function: my_malloc as *const () as usize,
           },
           Rebinding {
               name: "calloc".to_string(),
               function: my_calloc as *const () as usize,
           },
           Rebinding {
               name: "realloc".to_string(),
               function: my_realloc as *const () as usize,
           },
           Rebinding {
               name: "free".to_string(),
               function: my_free as *const () as usize,
           },
        ]);
    }
}
```

License: MIT