IV_STATE_BUFFERED
ctx->iv_state = IV_STATE_BUFFERED;
if (ctx->iv_state == IV_STATE_BUFFERED) {
ctx->iv_state = IV_STATE_BUFFERED;
if (ctx->iv_state == IV_STATE_BUFFERED) {
ctx->iv_state = IV_STATE_BUFFERED;
ctx->iv_state = IV_STATE_BUFFERED;
ctx->iv_state = IV_STATE_BUFFERED;