在windows下编写socket程序，用mingw编译不成功

[xiaoyu8995]

想在windows下进行socket编程，网上查到很多例子，比如下面这个链接
http://www.cnblogs.com/churi/archive/2013/02/27/2935427.html
用VS可以编译成功，但是我现在要在mingw下编译出socket可执行程序，出现以下错误


应该是因为没有链接到socket库ws2_32.lib，但是不知道在mingw中怎么才能链接这个库啊？mingw有个lib文件夹，里面放的都是.a的文件，如果将.lib的文件放进去是不是还得经过转化？

[xiaoyu8995]

附上代码吧 server.cpp

//#include "stdafx.h"
#include <windows.h>
#include <winsock2.h>
#include <stdlib.h>
#include <stdio.h>

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

int main(int argc, char* argv[])
{
	//初始化WSA
	WORD sockVersion = MAKEWORD(2,2);
	WSADATA wsaData;
	if(WSAStartup(sockVersion, &wsaData)!=0)
	{
		return 0;
	}

	//创建套接字
	SOCKET slisten = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
	if(slisten == INVALID_SOCKET)
	{
		printf("socket error !");
		return 0;
	}

	//绑定IP和端口
	sockaddr_in sin;
	sin.sin_family = AF_INET;
	sin.sin_port = htons(8888);
	sin.sin_addr.S_un.S_addr = INADDR_ANY; 
	if(bind(slisten, (LPSOCKADDR)&sin, sizeof(sin)) == SOCKET_ERROR)
	{
		printf("bind error !");
	}

	//开始监听
	if(listen(slisten, 5) == SOCKET_ERROR)
	{
		printf("listen error !");
		return 0;
	}

	//循环接收数据
	SOCKET sClient;
	sockaddr_in remoteAddr;
	int nAddrlen = sizeof(remoteAddr);
	char revData[255]; 
	while (true)
	{
		printf("等待连接...\n");
		sClient = accept(slisten, (SOCKADDR *)&remoteAddr, &nAddrlen);
		if(sClient == INVALID_SOCKET)
		{
			printf("accept error !");
			continue;
		}
		printf("接受到一个连接：%s \r\n", inet_ntoa(remoteAddr.sin_addr));
		
		//接收数据
		int ret = recv(sClient, revData, 255, 0);		
		if(ret > 0)
		{
			revData[ret] = 0x00;
			printf(revData);
		}

		//发送数据
		char * sendData = "你好，TCP客户端！\n";
		send(sClient, sendData, strlen(sendData), 0);
		closesocket(sClient);
	}
	
	closesocket(slisten);
	WSACleanup();
	return 0;
}

client.cpp

//#include "stdafx.h"
#include <windows.h>
#include <winsock2.h>
#include <stdlib.h>
#include <stdio.h>

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


int main(int argc, char* argv[])
{
    WORD sockVersion = MAKEWORD(2,2);
    WSADATA data; 
    if(WSAStartup(sockVersion, &data) != 0)
    {
        return 0;
    }

    SOCKET sclient = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
    if(sclient == INVALID_SOCKET)
    {
        printf("invalid socket !");
        return 0;
    }

    sockaddr_in serAddr;
    serAddr.sin_family = AF_INET;
    serAddr.sin_port = htons(8888);
    serAddr.sin_addr.S_un.S_addr = inet_addr("127.0.0.1"); 
    if (connect(sclient, (sockaddr *)&serAddr, sizeof(serAddr)) == SOCKET_ERROR)
    {
        printf("connect error !");
        closesocket(sclient);
        return 0;
    }
    char * sendData = "你好，TCP服务端，我是客户端!\n";
    send(sclient, sendData, strlen(sendData), 0);

    char recData[255];
    int ret = recv(sclient, recData, 255, 0);
    if(ret > 0)
    {
        recData[ret] = 0x00;
        printf(recData);
    }
    closesocket(sclient);
    WSACleanup();
    return 0;
}

[oyljerry]

需要用mingw对应版本的库文件，而且你的API应该是用mingw的，而不是windows的

[mayudong1]

编译的时候加上-lws2_32，指定链接到socket库 g++ server.cpp -lws2_32

[xiaoyu8995]

引用 2 楼 oyljerry 的回复:

需要用mingw对应版本的库文件，而且你的API应该是用mingw的，而不是windows的

mingw对应的socket库文件是什么？

[xiaoyu8995]

3楼正解。。顺便问一下，Windows下有没有类似Linux下setitimer这样的定时器函数？需要完成定时触发回调函数的功能，类似于下面链接中Linux下定时器的例子。。也是需要在minGW下编译的 http://blog.sina.com.cn/s/blog_590be5290100izdf.html

[xiaoyu8995]

找到一个时钟中断的例子，http://blog.csdn.net/sunrier/article/details/6440029 用minGW编译老是出现 error: variable or field 'interrupt' declared void的错误，编译不过去

[cr945211]

引用 3 楼 mayudong1 的回复:

编译的时候加上-lws2_32，指定链接到socket库
g++ server.cpp -lws2_32

请问，将楼主的程序写成C语言，用MinGW为什么编译不过去啊？必须是C++的程序吗

#include <windows.h>
#include <winsock2.h>
#include <stdlib.h>
#include <stdio.h>

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


int main(int argc, char* argv[])
{
    WORD sockVersion = MAKEWORD(2,2);
    WSADATA data; 
    if(WSAStartup(sockVersion, &data) != 0)
    {
        return 0;
    }

    SOCKET sclient = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
    if(sclient == INVALID_SOCKET)
    {
        printf("invalid socket !");
        return 0;
    }

    sockaddr_in serAddr;
    serAddr.sin_family = AF_INET;
    serAddr.sin_port = htons(8888);
    serAddr.sin_addr.S_un.S_addr = inet_addr("127.0.0.1"); 
    if (connect(sclient, (sockaddr *)&serAddr, sizeof(serAddr)) == SOCKET_ERROR)
    {
        printf("connect error !");
        closesocket(sclient);
        return 0;
    }
    char * sendData = "你好，TCP服务端，我是客户端!\n";
    send(sclient, sendData, strlen(sendData), 0);

    char recData[255];
    int ret = recv(sclient, recData, 255, 0);
    if(ret > 0)
    {
        recData[ret] = 0x00;
        printf(recData);
    }
    closesocket(sclient);
    WSACleanup();
    return 0;
}

编译出现的问题如下图

[bwlrktjv44240]

引用 7 楼 cr945211 的回复:

[quote=引用 3 楼 mayudong1 的回复:] 编译的时候加上-lws2_32，指定链接到socket库 g++ server.cpp -lws2_32

请问，将楼主的程序写成C语言，用MinGW为什么编译不过去啊？必须是C++的程序吗

#include <windows.h>
#include <winsock2.h>
#include <stdlib.h>
#include <stdio.h>

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


int main(int argc, char* argv[])
{
    WORD sockVersion = MAKEWORD(2,2);
    WSADATA data; 
    if(WSAStartup(sockVersion, &data) != 0)
    {
        return 0;
    }

    SOCKET sclient = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
    if(sclient == INVALID_SOCKET)
    {
        printf("invalid socket !");
        return 0;
    }

    sockaddr_in serAddr;
    serAddr.sin_family = AF_INET;
    serAddr.sin_port = htons(8888);
    serAddr.sin_addr.S_un.S_addr = inet_addr("127.0.0.1"); 
    if (connect(sclient, (sockaddr *)&serAddr, sizeof(serAddr)) == SOCKET_ERROR)
    {
        printf("connect error !");
        closesocket(sclient);
        return 0;
    }
    char * sendData = "你好，TCP服务端，我是客户端!\n";
    send(sclient, sendData, strlen(sendData), 0);

    char recData[255];
    int ret = recv(sclient, recData, 255, 0);
    if(ret > 0)
    {
        recData[ret] = 0x00;
        printf(recData);
    }
    closesocket(sclient);
    WSACleanup();
    return 0;
}

编译出现的问题如下图 [/quote] 要加struct