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標(biāo)題: c++ socket [打印本頁]

作者: luyuan1212 時(shí)間: 2018-3-27 13:31
標(biāo)題: c++ socket
Client：
1.鏈接dll
#pragma comment(lib,"Ws2_32.lib")
2.初始化套接字對(duì)象SOCKET，端口號(hào)，
3.DLL信息初始化
WSADATA wsaData;    //DLL信息
WORD wVersionRequested; //版本號(hào)
wVersionRequested = MAKEWORD(1, 1);  //計(jì)算版本號(hào)
err = WSAStartup(wVersionRequested, &wsaData);
if (err != 0) {
return -1; //初始化DLL失敗
}

4.創(chuàng)建套接字
err = (sockClient = socket(AF_INET, SOCK_STREAM, 0));
if (err < 0) {
  printf("create socket error: %s(errno: %d)\n\n", strerror(errno), errno);
  return -1;
}
else
{
  printf("create socket successful!\nnow connect ...\n\n");
}

5.連接目標(biāo)主機(jī)端口
SOCKADDR_IN addrSrv;
addrSrv.sin_addr.S_un.S_addr = inet_addr(IP);
addrSrv.sin_family = AF_INET;
addrSrv.sin_port = htons(PORT);
err = connect(sockClient, (SOCKADDR*)&addrSrv, sizeof(SOCKADDR));
if (err < 0)
{
  printf("connect error: %s(errno: %d)\n\n", strerror(errno), errno);
  return -1;
}
else
{
  printf("connect successful!\n\n");
  return 1;
}

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