winc与linux网络通讯

这是window的API程序与linux的API程序进行简单通讯的例子

========================================================

#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>

#define SIZE 1024
#define IPSIZE 16

int main(void)
{
        int sd, nsd;
        struct sockaddr_in addr, peer;
        int len, ret;
        char buffer[SIZE];
        unsigned short port = 19790;
        //unsigned short port = 1029;

        char ipstr[IPSIZE];

        sd = socket(PF_INET, SOCK_STREAM, 0);
        if (sd == -1)
        {
                perror("socket");
                return -1;
        }

        addr.sin_family = AF_INET;
        addr.sin_port = htons(port);
        inet_pton(AF_INET, "0.0.0.0", &addr.sin_addr);

        bind(sd, (struct sockaddr *)&addr, sizeof(addr));

        listen(sd, 10);

        while(1)
        {
                len = sizeof(peer);
                nsd = accept(sd, (struct sockaddr *)&peer, &len);

                printf("1");
                ret = recv(nsd, buffer, SIZE, 0);
                buffer[ret] = '\0';

                // inet_pton(AF_INET, &peer.sin_addr, ipstr, IPSIZE);

                printf("server read [%s:%d] : %s\n",
                        inet_ntoa(peer.sin_addr), ntohs(peer.sin_port), buffer);

                close(nsd);
        }
        close(sd);

        return 0;
}

===============================================================

/* 头文件 */
#include <stdio.h>
#include "winsock2.h"
/* 常量 */
#define RECV_BUFFER_SIZE 8192

/*************************************
* main
* 功能 socket通信客户端
**************************************/
void main(int argc, char* argv[])
{
 // 变量定义

 SOCKADDR_IN clientService;// 地址

 SOCKET ConnectSocket;// socket

 WSADATA wsaData;// 库

 LPVOID recvbuf;// 接收缓存

 int bytesSent;
 int bytesRecv = 0;
 char sendbuf[32] = "get information";// 默认发送的数据


 // 初始化socket库， 保存ws2_32.dll已经加载

 int iResult = WSAStartup(MAKEWORD(2,2), &wsaData);
 if (iResult != NO_ERROR)
  printf("Error at WSAStartup()\n");

 // 创建socket


 ConnectSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP );
 if (ConnectSocket == INVALID_SOCKET)
 {
  printf("Error at socket(): %ld\n", WSAGetLastError());
  WSACleanup();
  return;
 }

 // 设置服务端的通信协议、IP地址、端口

 clientService.sin_family = AF_INET;
 clientService.sin_addr.s_addr = inet_addr( "192.168.1.8" );
 clientService.sin_port = htons( 19790);

 // 连接到服务端

 printf("befor connect\n");
 if ( connect(ConnectSocket, (SOCKADDR*) &clientService, sizeof(clientService) ) == SOCKET_ERROR)
 {
  printf( "Failed to connect(%d)\n",WSAGetLastError() );
  WSACleanup();
  return;
 }
 printf("after connect\n");

 // 向服务端发送数据

 bytesSent = send( ConnectSocket, "Hello", lstrlen("Hello")+1, 0 );// 无标志


 WSACleanup();
 while(1);

 return;
}

=====================================================================

[附加网站]

 http://blog.sina.com.cn/s/blog_500c9c600100bqnr.html


http://wenku.baidu.com/view/4150c707e87101f69e319513.html


http://apps.hi.baidu.com/share/detail/7267986


http: