Manifest Constants (WS2DNET.H)

#define DNPROTO_NSP         1    // DECnet NSP transport protocol
#define SO_LINKINFO         7    // Get DECnet logical link information

#define DN_MAXADDL         20    // Maximum DECnet address length
#define DN_ADDL             2    // DECnet NSP address length 
#define DN_MAXOPTL        16     // Maximum DECnet optional data
#define DN_MAXOBJL        16     // Maximum DECnet object name
#define DN_MAXACCL        40     // Maximum DECnet access string
                    // length (39 bytes + trailing zero)
    #define DN_MAXALIASL     128  // Maximum DECnet alias string length
    #define DN_MAXNODEL      256  // Maximum node string length

    // DECnet logical link states 
    #define LL_INACTIVE         0    // logical link inactive
    #define LL_CONNECTING     1      // logical link connecting
    #define LL_RUNNING         2     // logical link running
    #define LL_DISCONNECTING     3   // logical link disconnecting


    // DECnet incoming access types
    #define DN_NONE          0x00
    #define DN_RO            0x01
    #define DN_WO            0x02
    #define DN_RW            0x03