MinGW Code Blocks 运行 winsock

女爷i 2022-03-17 12:09 288阅读 0赞

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先转一段： 来自网络 网址不记得啦，不好意思

\----------------------------

按照原来在VS下的经验，添加头文件

*\#include "windows.h"*

*\#include "winsock2.h"*

*\#pragma comment(lib, "ws2\_32.lib")*

在使用代码

*if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0)  
\{  
return 1;  
\}*

报错，undefined reference to [WSAStartup@8][WSAStartup_8]

查阅网络，得知原来Mingw没有默认包含Windows的库，需要在链接的地方添加-lwsock32。

\-------------------------------------

再 Code::blocks 中新建一个工程， 然后右击工程

选择 build options

选择 Linker setting

在 Other linker options 中添加： -lwsock32  
问题解决

附代码：

//\#include "stdafx.h" // 注释掉\#include "windows.h" // 新增 windows.h \#include "winsock2.h" //\#pragma comment(lib, "ws2\_32.lib") // 注视掉 \#include <iostream> using namespace std; int main(int argc, char\* argv\[\]) \{ const int BUF\_SIZE = 64; WSADATA wsd; //WSADATA变量 SOCKET sServer; //服务器套接字 SOCKET sClient; //客户端套接字 SOCKADDR\_IN addrServ;; //服务器地址 char buf\[BUF\_SIZE\]; //接收数据缓冲区 char sendBuf\[BUF\_SIZE\];//返回给客户端得数据 int retVal; //返回值 //初始化套结字动态库 if (WSAStartup(MAKEWORD(2,2), &wsd) != 0) \{ cout << "WSAStartup failed!" << endl; return 1; \} //创建套接字 sServer = socket(AF\_INET, SOCK\_STREAM, IPPROTO\_TCP); if(INVALID\_SOCKET == sServer) \{ cout << "socket failed!" << endl; WSACleanup();//释放套接字资源; return -1; \} //服务器套接字地址 addrServ.sin\_family = AF\_INET; addrServ.sin\_port = htons(4999); addrServ.sin\_addr.s\_addr = INADDR\_ANY; //绑定套接字 retVal = bind(sServer, (LPSOCKADDR)&addrServ, sizeof(SOCKADDR\_IN)); if(SOCKET\_ERROR == retVal) \{ cout << "bind failed!" << endl; closesocket(sServer); //关闭套接字 WSACleanup(); //释放套接字资源; return -1; \} //开始监听 retVal = listen(sServer, 1); if(SOCKET\_ERROR == retVal) \{ cout << "listen failed!" << endl; closesocket(sServer); //关闭套接字 WSACleanup(); //释放套接字资源; return -1; \} //接受客户端请求 sockaddr\_in addrClient; int addrClientlen = sizeof(addrClient); sClient = accept(sServer,(sockaddr FAR\*)&addrClient, &addrClientlen); if(INVALID\_SOCKET == sClient) \{ cout << "accept failed!" << endl; closesocket(sServer); //关闭套接字 WSACleanup(); //释放套接字资源; return -1; \} while(true)\{ //接收客户端数据 ZeroMemory(buf, BUF\_SIZE); retVal = recv(sClient, buf, BUF\_SIZE, 0); if (SOCKET\_ERROR == retVal) \{ cout << "recv failed!" << endl; closesocket(sServer); //关闭套接字 closesocket(sClient); //关闭套接字 WSACleanup(); //释放套接字资源; return -1; \} if(buf\[0\] == '0') break; cout << "客户端发送的数据: " << buf <<endl; cout << "向客户端发送数据: " ; cin >> sendBuf; send(sClient, sendBuf, strlen(sendBuf), 0); \} //退出 closesocket(sServer); //关闭套接字 closesocket(sClient); //关闭套接字 WSACleanup(); //释放套接字资源; return 0; \}

[https_blog.csdn.net_jiangjunshow]: https://blog.csdn.net/jiangjunshow/article/details/77338485
[WSAStartup_8]: mailto:WSAStartup@8