乙個簡單的UDP廣播例子 含C S

乙個簡單的udp廣播通訊的例子程式，含有服務端和客戶端的**。

// 服務端  

//  
#include "stdafx.h"  
#include #include #pragma comment(lib, "ws2_32.lib")  
int _tmain(int argc, _tchar* argv)  
if(2 != hibyte(wsadata.wversion) || 2 != lobyte(wsadata.wversion))  
socket sock = socket(af_inet, sock_dgram, ipproto_udp);  
if(invalid_socket == sock)  
sockaddr_in addr;  
memset(&addr, 0, sizeof(addr));  
addr.sin_family = af_inet;  
addr.sin_addr.s_un.s_addr = htonl(inaddr_broadcast);  
addr.sin_port = htons(5150);  
bool bboardcast = true;  
if(socket_error == setsockopt(sock, sol_socket, so_broadcast, (char*)&bboardcast, sizeof(bboardcast)))  
wsacleanup();  
}  printf("server start, start to boardcast .../n");  
char buf = ;  
while(true)  
sleep(1000);  
}  wsacleanup();  
return 0;  
}

// 客戶端  

//  
#include "stdafx.h"  
#include #include #pragma comment(lib, "ws2_32.lib")  
int _tmain(int argc, _tchar* argv)  
if(2 != hibyte(wsadata.wversion) || 2 != lobyte(wsadata.wversion))  
socket sock = socket(af_inet, sock_dgram, ipproto_udp);  
if(invalid_socket == sock)  
sockaddr_in addr;  
memset(&addr, 0, sizeof(addr));  
addr.sin_family = af_inet;  
addr.sin_addr.s_un.s_addr = htonl(inaddr_any);  
addr.sin_port = htons(5150);  
if(socket_error == bind(sock, (lpsockaddr)&addr, sizeof(addr)))  
wsacleanup();  
return exit_failure;  
}  #define max_buffer 256  
char szbuf[max_buffer] = ;  
sockaddr_in remote;  
memset(&remote, 0, sizeof(remote));  
int len = sizeof(remote);  
while(true)  
printf("recv data: <%s : %d> %s/n", inet_ntoa(remote.sin_addr), ntohs(remote.sin_port), szbuf);  
}  return 0;  
}

乙個簡單的UDP廣播程式

一般使用的socket程式設計都是使用的是一些繫結埠和ip的普通的程式，一旦想要編寫一些特殊的網路應用程式就會出現一些問題。就那這個udp廣播資料的車姑娘許來說，需要設定socket的選項，也就是使用setsockopt來設定socket的一些特殊選項。include include include...

乙個簡單基於UDP的回顯C S 一

問題 伺服器端意外崩潰或重啟，客戶端不得而知 特點 迭代伺服器 服務端 vi s4.c include include include include include include include define serv port 9877 define maxline 4096 void ser...

乙個基於UDP的回顯C S 二

解決問題 通過connect，使伺服器端意外崩潰,重啟，客戶端能通過read函式而得知 伺服器端 vi s4.c include include include include include include include define serv port 9877 define maxline ...