libsodium-sys 0.1.0

FFI binding to libsodium
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44

extern crate bindgen;
extern crate pkg_config;

use std::env;
use std::path::PathBuf;

fn main() {
    println!("cargo:rerun-if-env-changed=SODIUM_LIB_DIR");
    println!("cargo:rerun-if-env-changed=SODIUM_INC_DIR");
    println!("cargo:rerun-if-env-changed=SODIUM_STATIC");

    if let Ok(lib_dir) = env::var("SODIUM_LIB_DIR") {
        println!("cargo:rustc-link-search=native={}", lib_dir);

        let mode = match env::var_os("SODIUM_STATIC") {
            Some(_) => "static",
            None => "dylib",
        };

        println!("cargo:rustc-link-lib={0}=sodium", mode);
    } else {
        pkg_config::find_library("libsodium").unwrap();
    }

    let include_dir = match env::var("SODIUM_INC_DIR") {
        Ok(dir) => dir,
        Err(_) => pkg_config::get_variable("libsodium", "includedir").unwrap()
    };

    let bindings = bindgen::Builder::default()
        .header("sodium_wrapper.h")
        .whitelist_function("(sodium|crypto|randombytes)_.*")
        .whitelist_type("(sodium|crypto|randombytes)_.*")
        .whitelist_var("(sodium|crypto|randombytes)_.*")
        .clang_arg("-isystem")
        .clang_arg(include_dir)
        .generate()
        .expect("Unable to generate bindings");

    let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
    bindings
        .write_to_file(out_path.join("sodium_bindings.rs"))
        .expect("Couldn't write bindings!");
}