unit record_define;

interface
uses
  Winsock,SysUtils;

const
    buffer_max_size=256;
    TEMP_SUMMIT=1;
    PACKET_SUMMIT=2;
    REMEDY_SECOND=10;
type
    TCommBlock=record
        data_long: Integer;
        tcp_data:array [0..255] of char;
    end;
    
    {PClient= ^TClient;
    TClient=record  // Object holding data of client (see events)
        DNS: String[20];
        Connected,
        LastAction:TDateTime;
        Thread:Pointer;
    end;}


    procedure write_text(str:string);
    function fetch_LocalIP(var inter_IP,outer_IP:string): boolean;
    function char_to_str(data: array of char; data_long: integer;var str: string): boolean;
    function insert_blank(var str: string): boolean;
    function BCD_to_Hex(data: byte): byte;
implementation

procedure write_text(str:string);
var
    log_file:textfile;
begin
    assignfile(log_file,'log.txt');
    append(log_file);
    writeln(log_file,str);
    writeln(log_file,'-----------------------------------------');
    closefile(log_file);
end;

function fetch_LocalIP(var inter_IP,outer_IP:string): boolean;
type
   TaPInAddr = array [0..10] of PInAddr;
   PaPInAddr = ^TaPInAddr;
var
   phe : PHostEnt;
   pptr : PaPInAddr;
   Buffer : array [0..63] of char;
   I : Integer;
   GInitData : TWSADATA;
   temp:string;
begin
   WSAStartup($101, GInitData);
   GetHostName(Buffer, SizeOf(Buffer));
   phe :=GetHostByName(buffer);
   if phe = nil then Exit;
   pptr := PaPInAddr(Phe^.h_addr_list);

   if pptr^[0] <> nil then
       inter_IP:=StrPas(inet_ntoa(pptr^[0]^))
   else
       inter_IP:='127.0.0.1';

   if pptr^[1] <> nil then
       outer_IP:=StrPas(inet_ntoa(pptr^[1]^))
   else
       outer_IP:=inter_IP;

   WSACleanup;
end;

function char_to_str(data: array of char; data_long: integer;
  var str: string): boolean;
var
   i:integer;
begin
   str:='';
   for i:=0 to data_long-1 do
   begin
       str:=str+inttoHex(integer(data[i]),2);
   end;
end;

function insert_blank(var str: string): boolean;
var
    i,str_long:integer;
    temp_str:string;
begin
    temp_str:=str;
    str_long:=length(str);
    i:=3;
    while(i<str_long) do
    begin
        if ((i mod 48)=0) then
           begin
               System.insert(' ', temp_str, i);
               temp_str[i]:=#13;
           end
        else
           System.insert(' ', temp_str, i);
        i:=i+3;
        str_long:=str_long+1;
    end;

    str_long:=length(temp_str);
    i:=13;
    while(i<str_long) do
    begin
        if  temp_str[i-1]<>#13 then
        begin
            System.insert('   ', temp_str, i);
            i:=i+3;
            str_long:=str_long+3;
        end;
        i:=i+12;
    end;
    str:=temp_str;
end;

function BCD_to_Hex(data: byte): byte;
var
    temp:byte;
begin
     temp:=data div 16;
     result:=temp*10+(data mod 16);
end;

end.