libsodium_sys

Function crypto_stream_salsa20_xor

Source 
pub unsafe extern "C" fn crypto_stream_salsa20_xor(
    c: *mut c_uchar,
    m: *const c_uchar,
    mlen: c_ulonglong,
    n: *const c_uchar,
    k: *const c_uchar,
) -> c_int