# include & lt; Winsock2. H> 
#include  
#include  
#include  
#include  
#include  
#include  
#include  
#include  
#include  
# pragma comment (lib, "ws2_32. Lib") 
# define STR_MAX_LEN 200 
# define NAME_LEN 20 
# define PWD_LEN 16 
# define MML_LEN 10 
# define SEND_LEN STR_MAX_LEN + NAME_LEN + 2 
# define DK 5327 
using namespace std; 

Ofstream Sf. 
Const int MAX_ONLINE=20; 
Const char Server_IP []="172.17.0.3";//"127.0.0.1"; 
Const char Warn_Buf []="It 's over Max connect!" , 
Aok [2]="0", 
Anok [2]="1", 
Anok2 [2]="2", 
Azok [2]="0", 
Aznok [2]="1", 
Ml [100]=""; 
The list & lt; The SOCKET & gt; The online; 
Bool online_using=0; 
Char name [NAME_LEN]; 
The FILE * fp, * fp2; 
Void NewHandle (SOCKET & amp; SockFrom); 
Void Wrong_exit (const char * Error_place, int _Code) {
Printf (" % s wrong! At: % d \ n ", Error_place, _Code); 
system("pause"); 
The exit (_Code); 
} 

Void show_time () {
The static char time_l [20], time_n [20]. 
The static time_t timep; 
{
Time (& amp; Timep); 
Strftime (time_n, sizeof (time_n), "% % Y - m - H: % d % % m", a localtime (& amp; Timep)); 
If (STRCMP (time_l time_n)) {
Strcpy (time_l time_n); 
Printf ("//% s \ n ", time_n); 
} 
} 
} 

Void broadcast (const char * name, const char * send_buf) {
The static char ls_send [SEND_LEN]; 

Strcpy (ls_send, name); 
Strcat (ls_send, ":"); 
Strcat (ls_send send_buf); 
Freopen (" rr. TXT ", "a", stdout); 
Printf (" % s \ n ", ls_send); 
Freopen (" CON ", "a", stdout); 

While (online_using); 
Online_using=1; 

For (auto I=online. The begin (); i !=online. The end (); I++) 
Send (* I, ls_send SEND_LEN, 0). 

Online_using=0; 
//cout<& lt;" Aaas \ n "; 
} 

Void flash_online_num () {
The static char title [100]. 
If (online. The empty ()) strcpy (title, "the title=bb - xjrjyy - Server"); 
The else sprintf (title, "the title=bb - xjrjyy - Server online_now: : % d", online. The size ()); 
The system (the title); 
} 

DWORD WINAPI child_thread (LPVOID V_sock) {
The SOCKET hsock=(SOCKET) V_sock; 
Char PWD [PWD_LEN], PWDTMP [PWD_LEN], MML [MML_LEN]; 
Char recvbuf [STR_MAX_LEN], tmpbuf [NAME_LEN + 10], TMPCD [NAME_LEN + 105]. 
Bool fa=0, ydl=1; 
Int FHZ=1; 
While (ydl) {
While (online_using); 
Online_using=1; 
Bool ZCF=0, DLF=0; 
FHZ=recv (hsock, MML, MML_LEN, 0); 
If (STRCMP (MML, "tc")==0/* STRCMP (MML, "zc")==0 | | STRCMP (MML, "dl")==0 */) {
FHZ=recv (hsock, MML, MML_LEN, 0); 
} 
If (STRCMP (MML, "zc")==0) {
ZCF=1; 
} 
If (STRCMP (MML, "dl")==0) {
DLF=1; 
} 
FHZ=recv (hsock, name, NAME_LEN, 0); 
FHZ=recv (hsock, PWD, PWD_LEN, 0); 
//for (int iz=0; Iz//cout//cout<1 & lt; Sprintf (TMPCD, "% s % s.t xt, ml, name); 
If (ZCF) {
Freopen (TMPCD, "r", stdin); 
If (the scanf (" % s ", PWDTMP)!=1 & amp; & STRCMP (PWDTMP, "")!=0) {
Send (hsock aznok, strlen (aznok) + 1, 0). 
The fclose (stdin); 
Online_using=0; 
continue; 
} 
The fclose (stdin); 
Fp=fopen (TMPCD, "w"); 
Fprintf (fp, "% s", the PWD). 
fclose(fp); 
//freopen (TMPCD, "w", stdout); 
//printf (" % s ", the PWD); 
//freopen (" CON ", "a", stdout); 
Printf (" % s register Successful! \ n ", name); 
Send (hsock azok, strlen (azok) + 1, 0). 
//return 0; 
Online_using=0; 
continue; 
} the else 
If (DLF) {
//send (hsock, aok, strlen (aok), 0). 
Freopen (TMPCD, "r", stdin); 
If (the scanf (" % s ", PWDTMP)==1 | | STRCMP (PWDTMP, "")==0) {
Send (hsock anok2, strlen (anok2) + 1, 0). 
The fclose (stdin); 
Online_using=0; 
continue; 
} 
The fclose (stdin); 
If (STRCMP (PWD, PWDTMP)==0) {
Online_using=0; 
Send (hsock aok, strlen (aok), 0). 
} else {
Online_using=0; 
Send (hsock anok, strlen (anok) + 1, 0). 
continue; 
} 
} else {
Online_using=0; 
continue; 
} 
//recv (SockFrom, recvbuf STR_MAX_LEN, 0). 
Online. The push_back (hsock); 
//coutOnline_using=0; 
Ydl=0; 
} 
Show_time (); 
Printf (" % s login Successful! \ n ", name); 
Flash_online_num (); 
While (true) {
FHZ=recv (hsock, MML, MML_LEN, 0); 
if(! STRCMP (recvbuf, "word: : EXIT") | | FHZ==0 | | FHZ==SOCKET_ERROR) break; 
If (STRCMP (MML, "lt")==0) {
FHZ=recv (hsock, recvbuf STR_MAX_LEN, 0). 
if(! STRCMP (recvbuf, "word: : EXIT") | | FHZ==0 | | FHZ==SOCKET_ERROR) break; 
Broadcast (name, recvbuf); 
} else {
If (STRCMP (MML, "tc")==0/* STRCMP (MML, "zc")==0 | | STRCMP (MML, "dl")==0 */) {
Fa=1; break; 
} 
} 
Sleep (10); 
} 
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