libsodium_sys::crypto_aead_chacha20poly1305_decrypt

pub unsafe extern fn crypto_aead_chacha20poly1305_decrypt(m: *mut u8, mlen: *mut c_ulonglong, nsec: *mut [u8; 0], c: *const u8, clen: c_ulonglong, ad: *const u8, adlen: c_ulonglong, npub: *const [u8; 8], k: *const [u8; 32]) -> c_int