#define OPTION_TCPONLY 0x0002
#define OPTION_PMTU_DISCOVERY 0x0004
#define OPTION_CLAMP_MSS 0x0008
+#define OPTION_VERSION(x) ((x) >> 24) /* Top 8 bits are for protocol minor version */
typedef struct connection_status_t {
unsigned int pinged:1; /* sent ping */