Function botan_sys::botan_pbkdf

pub unsafe extern "C" fn botan_pbkdf(
    pbkdf_algo: *const c_char,
    out: *mut u8,
    out_len: usize,
    passphrase: *const c_char,
    salt: *const u8,
    salt_len: usize,
    iterations: usize,
) -> c_int