#include   
#include   
#pragma comment(lib,"ws2_32.lib")

typedef struct Info
{
  char client_name[30];
  char buffer[1024];
}message;

message msg;


void GetSysInfo()
{
  SYSTEM_INFO sysInfo;
}

int main()
{
  WSADATA WSAData;
  SOCKET sock;

  WSAStartup(MAKEWORD(2, 0), &WSAData);
  sock = socket(AF_INET, SOCK_STREAM, 0);

  struct sockaddr_in ClientAddr;
  ClientAddr.sin_family = AF_INET;
  ClientAddr.sin_port = htons(15001);
  ClientAddr.sin_addr.s_addr = inet_addr("127.0.0.1");

  connect(sock, (LPSOCKADDR)&ClientAddr, sizeof(ClientAddr));

  // 首先需要定义一个变量
  char snd_buf[1024] = { 0 };

  // 将数据拷贝到结构中
  strcpy(msg.client_name, "lyshark");
  strcpy(msg.buffer, "bbbbbb");

  // 发送字节序
  memcpy(snd_buf, &msg, sizeof(message));
  send(sock, snd_buf, sizeof(snd_buf), 0);

  closesocket(sock); 
  WSACleanup();  
  return 0;
}

#include   
#include   
#pragma comment(lib,"ws2_32.lib")
#define PORT 15001
#define ERROR 0  
#define BUFFER_SIZE 1024


typedef struct Info
{
  char client_name[30];
  char buffer[1024];
}message;

int main()
{
  WSADATA WSAData;

  WSAStartup(MAKEWORD(2, 0), &WSAData);

  SOCKET sock;
  sock = socket(AF_INET, SOCK_STREAM, 0);

  struct sockaddr_in ServerAddr;   
  ServerAddr.sin_family = AF_INET;         
  ServerAddr.sin_port = htons(PORT);      
  ServerAddr.sin_addr.s_addr = INADDR_ANY; 

  bind(sock, (LPSOCKADDR)&ServerAddr, sizeof(ServerAddr));
  listen(sock, 10);
  
  SOCKET msgsock;      
  // 用于接收结构
  char buf[1024] = { 0 };

  msgsock = accept(sock, (LPSOCKADDR)0, (int *)0);

  recv(msgsock, buf, sizeof(buf), 0);
  // 接收到结构，强制类型转换
  message *msg = (message*)buf;

  printf("%s \n", msg->client_name);
  printf("%s \n", msg->buffer);

  closesocket(sock);
  WSACleanup();

  system("pause");
  return 0;
}