Rust bindings for plthook

This crates provides Rust bindings for the [plthook] library.

Please see the [API documentation] and the description in the [plthook] library for more details.

Examples

To print symbols in the current process:

```rust use plthook::ObjectFile;

fn main() { let object = ObjectFile::openmainprogram().unwrap();

for symbol in object.symbols() {
    println!("{:?} {:?}", symbol.func_address, symbol.name);
}

} ```

To replace a symbol:

```rust use libc::{cchar, cint}; use plthook::ObjectFile; use std::mem::MaybeUninit;

static mut ATOIFN: MaybeUninit cint> = MaybeUninit::uninit();

fn negatoi(nptr: *const cchar) -> cint { let i = unsafe { (ATOIFN.assume_init())(nptr) }; -i }

fn main() { let object = ObjectFile::openmainprogram().unwrap();

unsafe {
    let atoi_fn = ATOI_FN.as_mut_ptr() as *mut _;
    *atoi_fn = object.replace("atoi", neg_atoi as *const _).unwrap();
};

let i = unsafe { libc::atoi(b"100\0".as_ptr().cast()) };
assert_eq!(i, -100);

} ```