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Annotation of researchv9/sys.vax/h/inet/tcp.h, revision 1.1.1.1

1.1       root        1: /*     tcp.h   6.1     83/07/29        */
                      2: 
                      3: typedef unsigned short tcp_port;
                      4: #define TCPPORT_ANY    0x8000  /* wild card for port number */
                      5: typedef        unsigned long   tcp_seq;
                      6: 
                      7: #ifdef KERNEL
                      8: /*
                      9:  * TCP header.
                     10:  * Per RFC 793, September, 1981.
                     11:  */
                     12: struct tcphdr {
                     13:        tcp_port        th_sport;       /* source port */
                     14:        tcp_port        th_dport;       /* destination port */
                     15:        tcp_seq         th_seq;         /* sequence number */
                     16:        tcp_seq         th_ack;         /* acknowledgement number */
                     17: #ifdef vax
                     18:        u_char  th_x2:4,                /* (unused) */
                     19:                th_off:4;               /* data offset */
                     20: #endif vax
                     21:        u_char  th_flags;
                     22: #define        TH_FIN  0x01
                     23: #define        TH_SYN  0x02
                     24: #define        TH_RST  0x04
                     25: #define        TH_PUSH 0x08
                     26: #define        TH_ACK  0x10
                     27: #define        TH_URG  0x20
                     28:        u_short th_win;                 /* window */
                     29:        u_short th_sum;                 /* checksum */
                     30:        u_short th_urp;                 /* urgent pointer */
                     31: };
                     32: 
                     33: #define        TCPOPT_EOL      0
                     34: #define        TCPOPT_NOP      1
                     35: #define        TCPOPT_MAXSEG   2
                     36: #endif KERNEL

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