Program is very simple just want to send some data to the client, send the time here is string,
The accept function is not blocked? Program to accept should not stop waiting connection? Why this application directly to the past, I got an incorrect socket return values,

 # include & lt; Stdio. H> 
# include & lt; stdlib.h> 
# include & lt; WinSock2. H> 
1024 * 2 # define MAXSIZE 
# pragma comment (lib, "Ws2_32. Lib") 
Int main () 
{
WSADATA WSADATA; 
If (WSAStartup (MAKEWORD (2, 2), & amp; WsaData)!=0) 
{
Printf (" start the error "); 
} 
int len; 
SOCKADDR_IN serv_addr. 
SOCKADDR_IN l_addr; 
Char the recvmsg [MAXSIZE]; 
The SOCKET sServer AcceptSocket; 

SServer=socket (PF_INET SOCK_STREAM, 0). 
If (sServer & lt; 0 {
Printf (" socket error "); 
return -1; 
} 

Memset (& amp; Serv_addr, 0, sizeof (serv_addr)); 
Serv_addr. Sin_family=AF_INET; 
Serv_addr. The sin_port=htons (2016); 
Serv_addr. The sin_addr. S_addr=htonl (INADDR_ANY); 

If (bind (sServer (SOCKADDR *) & amp; Serv_addr, sizeof (serv_addr)) & lt; 0) 
{
Printf (" bind err "); 
return -1; 
} 
If (listen (sServer, 5)==SOCKET_ERROR) 
{
Printf (" Listen error! \n"); 
return -1; 
} 
Memset (& amp; L_addr, 0, sizeof (l_addr)); 
AcceptSocket=accept (sServer (SOCKADDR *) & amp; L_addr, & amp; Len); 
While (1) {

If (AcceptSocket & gt;=0 & amp; & AcceptSocket!=SOCKET_ERROR) 
{
Printf (" Now the link from the then connected. \ n "); 
Memset (the recvmsg, 0, MAXSIZE); 
SYSTEMTIME sys. 
GetLocalTime (& amp; Sys); 
Sprintf (the recvmsg, 02 02 "% 4 d % d % d - 02 02 02 % d % d % d", sys. WYear, sys. WMonth, sys. WDay, sys. WHour, sys. WMinute, sys. WSecond); 
if (! Send (AcceptSocket, the recvmsg, sizeof (the recvmsg), 0)) 
{
Printf (" send err! \n"); 
break; 
} 
} 
The else 
{
Printf (" accept the error! \n"); 
continue; 
} 

Sleep (40); 
} 
Closesocket (sServer); 
WSACleanup (); 
return 0; 
} 

CodePudding user response:

Check the return value please use! Format=correct value

CodePudding user response:

reference 1st floor ipqtjmqj response:

check the return value please use!=value such correct format

Changed, I didn't answer questions?