Function s2n_tls_sys::s2n_rand_set_callbacks

pub unsafe extern "C" fn s2n_rand_set_callbacks(
    rand_init_callback: s2n_rand_init_callback,
    rand_cleanup_callback: s2n_rand_cleanup_callback,
    rand_seed_callback: s2n_rand_seed_callback,
    rand_mix_callback: s2n_rand_mix_callback
) -> c_int

Allows the caller to override s2n-tls’s entropy functions.

@warning This function must be called before s2n_init().

@note The overriden random callbacks will not be used when s2n-tls is operating in FIPS mode.

@param rand_init_callback The s2n_rand_init_callback @param rand_cleanup_callback The s2n_rand_cleanup_callback @param rand_seed_callback The s2n_rand_seed_callback @param rand_mix_callback The s2n_rand_mix_callback @returns S2N_SUCCESS on success. S2N_FAILURE on failure