windows与linux之间实现socket通信

[zxx178239]

写了个测试例子，只发送hello，但是就是发送不成功，求解答

linuxServer代码如下

/*************************************************************************
	> File Name: server.c
	> Author: zxx
	> Mail: [e-mail] 
	> Created Time: Mon 23 Nov 2015 07:22:04 PM CST
 ************************************************************************/

#include <stdio.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <arpa/inet.h>
#include <netinet/in.h>


int main(int argc, char *argv[])
{
	int fd_listen, fd_client;
	char port[64] = "";
	char ip[64] = "";

	fd_listen = socket(AF_INET, SOCK_STREAM, 0);

	if(fd_listen == -1)
	{
		perror("socket");
		exit(1);
	}

	if(argc < 3)
	{
		printf("argc error!");
		exit(1);
	}
	struct sockaddr_in seraddr, clientaddr;

	memset(&seraddr, 0, sizeof(seraddr));
	seraddr.sin_family = AF_INET;
	seraddr.sin_port = htons(atoi(argv[2]));
	seraddr.sin_addr.s_addr = inet_addr(argv[1]);

	if(bind(fd_listen, (struct sockaddr *)&seraddr, 16) == -1)
	{
		perror("bind");
		exit(1);
	}

	if(listen(fd_listen, 10) == -1)
	{
		perror("listen");
		exit(1);
	}

	memset(&clientaddr, 0, sizeof(clientaddr));
	socklen_t len = sizeof(clientaddr);
	printf("wait accept\n");
	fd_client = accept(fd_listen, (struct sockaddr *)&clientaddr, &len);

	printf("accept success!\n");
	if(fd_client == -1)
	{
		perror("accept");
		exit(1);
	}

	printf("%s : %d\n", inet_ntoa(clientaddr.sin_addr), ntohs(clientaddr.sin_port));
	char buf[100] = "";
	recv(fd_client, buf, 100, 0);
	printf("recv from client: %s\n", buf);
	send(fd_client, "hello", 6, 0);
	close(fd_client);
	close(fd_listen);
}

winClient代码如下

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

#include <winsock2.h>

#pragma comment(lib, "ws2_32")

int main(int argc, char *argv[])
{
	WSADATA wsadata;
	struct sockaddr_in sin;
	SOCKET clientsock;
	char buf[50] = "";

	if (argc < 3)
	{
		printf("argc error!\n");
		exit(1);
	}

	if (WSAStartup(MAKEWORD(2, 2), &wsadata) != 0)
	{
		printf("start error!\n");
		exit(1);
	}

	
	clientsock = socket(AF_INET, SOCK_STREAM, 0);
	memset(&sin, 0, sizeof(sin));
	sin.sin_family = AF_INET;
	sin.sin_port = htons(atoi(argv[2]));
	sin.sin_addr.s_addr = inet_addr(argv[1]);

	
	printf("socket ok!\n");
	connect(clientsock, (struct sockaddr *)&sin, sizeof(sin));
	printf("connect ok!\n");
	send(clientsock, "hello world", 12, 0);

	recv(clientsock, buf, 50, 0);
	closesocket(clientsock);
	WSACleanup();
}

求大神帮忙看看，谢谢

[707wk]

搭建脚手架调试看哪出问题了

[zxx178239]

已经找到错误，是防火墙问题，已解决

[paschen]

参看：http://blog.csdn.net/feixiaoxing/article/details/8567162

[ztenv]

1、在linux下程序运行后，看有没有监听端口， 2、在windows下抓包，看有没有发送TCP包到linux服务器的监听端口 3、在client、server程序中，每调用socket相关函数，均判断一下函数的返回值， 程序如此简单，相信能找到问题的，估计只是一个小错误而已。

[赵4老师]

弱弱地问一句，能ping通吗？