Windows API hashing in Rust

Don't use

Example Usage

```rust // Const trait impls are currently experimental still

![feature(consttraitimpl)]

![allow(incomplete_features)]

[macro_use]

extern crate winapi_hash;

// https://github.com/HindrikStegenga/const-fnv1a-hash pub struct FNV1A64; impl const winapihash::HashFunction for FNV1A64 { const OUTPUTSIZE: usize = 8; fn digest(data: &[u8]) -> [u8; Self::OUTPUTSIZE] { const FNVOFFSETBASIS64: u64 = 0xcbf29ce484222325; const FNVPRIME64: u64 = 0x00000100000001B3;

    let mut hash = FNV_OFFSET_BASIS_64;
    let mut i = 0;
    while i < data.len() {
        hash ^= data[i] as u64;
        hash = hash.wrapping_mul(FNV_PRIME_64);
        i += 1;
    }
    hash.to_be_bytes()
}

}

fn main() { use std::ffi::CString; use winapi::shared::ntdef::NULL; use winapi::um::winuser::{MBICONINFORMATION, MBOK}; use winapi_hash::HashFunction;

let resolver = winapi_hash::ApiHashResolver::<FNV1A64>::new();
let lp_text = CString::new("Hello, world!").unwrap();
let lp_caption = CString::new("MessageBox Example").unwrap();

// Automatically resolves then calls MessageBoxA and stores the result
// If you don't care about what the function returns,
// call the macro as "let _: () = api_call!(...);"
let _message_box_a_result: u32 = winapi_hash::api_call!(
    resolver, FNV1A64, 
    "user32.dll" -> "MessageBoxA" (NULL, lp_text.as_ptr(), lp_caption.as_ptr(), MB_OK | MB_ICONINFORMATION)
);

} ```