TABLE OF CONTENTS The TCP/IP and supporting code contained within Code Snippet 14.2 is intimidating. Rather than tremble at it's feet, let's throw some bits at this big hunk of code and see what it will do.
*****************************//********************************************************//* TELNET SERVER BANNER STATEMENT CONSTANT//********************************************************char const telnet_banner[] = "\r\nAirDrop-P>";//********************************************************//* Port Definitions//* This address is used by TCP and the Telnet function.//* This can be changed to any valid port number as long as//* you modify your code to recognize the new port number.//********************************************************#define MY_PORT_ADDRESS 0x981F // 8088 DECIMAL//********************************************************//* FLAGS//********************************************************char flags;#define synflag 0x01#define finflag 0x02#define bsynflag flags & synflag#define bfinflag flags & finflag<a name="633"></a><a name="IDX-286"></a>#define clr_synflag flags &= <sup~</sup>synflag#define set_synflag flags = synflag#define clr_finflag flags &= <sup~</sup>finflag#define set_finflag flags = finflag//**********************************************************//* IP Header Layout//**********************************************************#define ip_vers_len 0x0C //IP version and header length//#define ip_tos //IP type of service#define ip_pktlen 0x0D //packet length#define ip_id ...
