TCPOLEN_TIMESTAMP  120 native_client_sdk/src/libraries/third_party/newlib-extras/netinet/tcp.h #define    TCPOLEN_TSTAMP_APPA		(TCPOLEN_TIMESTAMP+2) /* appendix A */
TCPOLEN_TIMESTAMP  122 native_client_sdk/src/libraries/third_party/newlib-extras/netinet/tcp.h     (TCPOPT_NOP<<24|TCPOPT_NOP<<16|TCPOPT_TIMESTAMP<<8|TCPOLEN_TIMESTAMP)