服务器
#include
#include
#include
#include
#pragma comment(lib,"WS2_32.lib")
int main(){
WSADATA wsaData;
WORD sockVersion = MAKEWORD(2, 0);
::WSAStartup(sockVersion, &wsaData);//第一个参数是WINSOCK版本号,第二个参数是指向WSADATA的指针
/*创建服务器的套接字*/
SOCKET s = ::socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);//三个参数分别代表使用TCP/IP,传输过程使用TCP,不使用其他特殊协议
if (s == INVALID_SOCKET)
{
printf("Failed socket()\n");
::WSACleanup();
system("pause");
return 0;
}
/*socket中装入地址信息*/
sockaddr_in sin;
sin.sin_family = AF_INET;//sin_family指代协议族,在socket编程中只能是AF_INET
sin.sin_port = htons(8888);//表示服务器监听的端口号为13
sin.sin_addr.S_un.S_addr = INADDR_ANY;//储存IP地址,INADDR_ANY就是指定地址为0.0.0.0的地址,
//这个地址事实上表示不确定地址,或“所有地址”、“任意地址”
/*绑定地址及端口号*/
if (::bind(s, (LPSOCKADDR)&sin, sizeof(sin)) == SOCKET_ERROR)
{
printf("Falied bind()\n");
::WSACleanup();
system("pause");
return 0;
}
/*监听客户端的连接请求*/
if (::listen(s, 2) == SOCKET_ERROR)
{
printf("Falied bind()\n");
::WSACleanup();
system("pause");
return 0;
}
sockaddr_in remoteAddr;
int nAddrLen = sizeof(remoteAddr);
SOCKET client;
time_t t = time(0);
char tmp[64];
char po[256];
//strftime(tmp, sizeof(tmp), "%Y/%m/%d%X%A\n\t", localtime(&t)); //提取系统时间
/*循环接受连接请求*/
while (TRUE)
{
client = ::accept(s, (SOCKADDR*)&remoteAddr, &nAddrLen);//accept默认会阻塞进程,知道有一个客户建立连接后返回,
//它返回的是一个新可用的套接字,这个套接字是连接套接字
if (client == INVALID_SOCKET)
{
printf("Failed accept()\n");
continue;
}
printf("接受到一个客户端的连接\r\n\n" );
while(1){
printf("我:");
scanf("%s",&tmp);
//while(strlen(tmp)==0){
::send(client, tmp, strlen(tmp), 0);
int nRecv = ::recv(client, po, 256, 0);
if (nRecv > 0)
{
po[nRecv] = '\0';
printf("%s:%s\n", inet_ntoa(remoteAddr.sin_addr),po);
//system("pause");
}//}
}
::closesocket(client);/*关闭连接*/
}
::closesocket(s);/*关闭套接字*/
system("pause");
return 0;
}
客户端
#include
#include
#include
#include
#pragma comment(lib,"WS2_32.lib")
int main(){
WSADATA wsaData;
WORD sockVersion = MAKEWORD(2, 0);
::WSAStartup(sockVersion, &wsaData);//第一个参数是WINSOCK版本号,第二个参数是指向WSADATA的指针
/*创建服务器的套接字*/
SOCKET s = ::socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);//三个参数分别代表使用TCP/IP,传输过程使用TCP,不使用其他特殊协议
if (s == INVALID_SOCKET)
{
printf("Failed socket()\n");
::WSACleanup();
system("pause");
return 0;
}
/*socket中装入地址信息*/
sockaddr_in servAddr;
servAddr.sin_family = AF_INET;//sin_family指代协议族,在socket编程中只能是AF_INET
servAddr.sin_port = htons(8888);//表示服务器监听的端口号为13
servAddr.sin_addr.S_un.S_addr = inet_addr("192.168.31.220");
/*绑定地址及端口号*/
if (::connect(s, (sockaddr*)&servAddr, sizeof(servAddr)) == -1);
{
printf("连接成功,等待消息...\n\n");
while(1){
char buff[256];
char te[256];
int nRecv = ::recv(s, buff, 256, 0);
if (nRecv > 0)
{
buff[nRecv] = '\0';
printf("对方:%s\n", buff);
printf("我:");
scanf("%s",&te);
::send(s, te, strlen(te), 0);
//system("pause");
}}
printf("Failed connect()\n");
::WSACleanup();
system("pause");
}
/*接收数据并打印到屏幕上*/
return 0;
}
2015.6.27