Function libsodium_sys::crypto_box_curve25519xsalsa20poly1305

pub unsafe extern "C" fn crypto_box_curve25519xsalsa20poly1305(
    c: *mut c_uchar, 
    m: *const c_uchar, 
    mlen: c_ulonglong, 
    n: *const c_uchar, 
    pk: *const c_uchar, 
    sk: *const c_uchar
) -> c_int