Linux 服务器端
#include <netinet/in.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#define SERVER_PORT 39500
#define LENGTH_OF_LISTEN_QUEUE 20
#define BUFFER_SIZE 1024
int main(int argc, char **argv)
{
struct sockaddr_in server_addr;
int server_socket;
int opt = 1;
bzero(&server_addr,sizeof(server_addr));
server_addr.sin_family = AF_INET;
server_addr.sin_addr.s_addr = htons(INADDR_ANY);
server_addr.sin_port = htons(SERVER_PORT);
server_socket = socket(PF_INET,SOCK_STREAM,0);
if( server_socket < 0)
{
printf("Create Socket Failed!");
exit(1);
}
setsockopt(server_socket, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt));
if( bind(server_socket,(struct sockaddr*)&server_addr,sizeof(server_addr)))
{
printf("Server Bind Port : %d Failed!",SERVER_PORT);
exit(1);
}
if(listen(server_socket, LENGTH_OF_LISTEN_QUEUE))
{
printf("Server Listen Failed!");
exit(1);
}
while (1)
{
struct sockaddr_in client_addr;
int client_socket;
socklen_t length;
char buffer[BUFFER_SIZE];
length = sizeof(client_addr);
client_socket = accept(server_socket, (struct sockaddr*)&client_addr, &length);
if( client_socket < 0)
{
printf("Server Accept Failed!\n");
break;
}
while(1)
{
bzero(buffer, BUFFER_SIZE);
length = recv(client_socket, buffer, BUFFER_SIZE, 0);
if (length < 0)
{
printf("Server Recieve Data Failed!\n");
break;
}
if('q' == buffer[0])
{
printf("Quit from client!\n");
break;
}
printf("%s\n", buffer);
}
close(client_socket);
}
close(server_socket);
return 0;
}
Windows客户端
#include <stdio.h>
#include <Windows.h>
#pragma comment(lib,"ws2_32.lib")
#define PORT 39500
#define IP_ADDRESS "***.***.194.13"
int SendMessage(SOCKET ClientSocket)
{
char SendBuffer[2] = "1";
int Ret;
while (1)
{
system("pause");
Ret = send(ClientSocket, SendBuffer, (int)strlen(SendBuffer), 0);
if (Ret == SOCKET_ERROR)
{
printf("Send Info Error::%d\n", GetLastError());
return -1;
}
}
}
int main(int argc, char* argv[])
{
WSADATA Ws;
SOCKET ClientSocket;
struct sockaddr_in ClientAddr;
int Ret = 0;
if (WSAStartup(MAKEWORD(2, 2), &Ws) != 0)
{
printf("初始化socket失败::%d\n", GetLastError());
return -1;
}
ClientSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (ClientSocket == INVALID_SOCKET)
{
printf("创建socket失败::%d\n", GetLastError());
return -1;
}
ClientAddr.sin_family = AF_INET;
ClientAddr.sin_addr.s_addr = inet_addr(IP_ADDRESS);
ClientAddr.sin_port = htons(PORT);
memset(ClientAddr.sin_zero, 0x00, 8);
Ret = connect(ClientSocket, (struct sockaddr*)&ClientAddr, sizeof(ClientAddr));
if (Ret == SOCKET_ERROR)
{
printf("连接错误:: % d\n", GetLastError());
return -1;
}
else
{
printf("成功连接到服务器!\n");
}
while (1)
{
SendMessage(ClientSocket);
}
closesocket(ClientSocket);
WSACleanup();
return 0;
}