correct.cpp


#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <Winsock2.h>

//加载动态连接库ws2_32.dll,提供了网络相关API的支持
#define WSA_VERSION  MAKEWORD(2,0)
#pragma comment(lib,"ws2_32")

// Server Side Configuration
const char* HOST_T = "192.168.1.163";
const unsigned short PORT_T =  10244;

char request_buf[2048];
char response_buf[2048];

char result_buf[1024];

int dig_result(const char* src, char* store)
{
	const char* ptr = NULL;

    if(!src || !store)
        return -1;

    ptr = strstr(src,"\'DATA\':\'");
    if (! ptr)
        return -1;

    ptr += strlen("\'DATA\':\'");

    while(*ptr != '\'')
    {
        *store++ = *ptr++;
    }

    *store = 0;

    return 0;
}

int main( int argc, char* argv[])
{
    //加载套接字库
    WORD wVersionRequested;
    WSADATA wsaData;
    const char *l_host = NULL;
    const char *l_str_test = NULL;
    int err;

    // correct.exe [host_ip] "测试语句"
    // correct.exe "测试语句"
    if (argc == 3)
    {
        l_host = argv[1];
        l_str_test = argv[2];
    }
    else if (argc == 2)
    {
        l_host = HOST_T;
        l_str_test = argv[1];
    }
    else
    {
        printf("参数错误: correct.exe [host_ip] \"测试语句\" ");
        exit(-1);
    }

	memset((void*)result_buf,0,sizeof(result_buf));

    wVersionRequested = MAKEWORD( 1, 1 );
    err = WSAStartup( wVersionRequested, &wsaData );//该函数的功能是加载一个Winsocket库版本
    if ( err != 0 ) 
    {
        return -1;
    }
    if ( LOBYTE( wsaData.wVersion ) != 1 ||  HIBYTE( wsaData.wVersion ) != 1 ) 
    {
            WSACleanup( );
            return -1; 
    }

    //建立通讯 socket
	// TCP 连接
    SOCKET sockClient = socket(AF_INET,SOCK_STREAM,0);
    SOCKADDR_IN addrSrv;
    addrSrv.sin_addr.S_un.S_addr=inet_addr(l_host);
    addrSrv.sin_family=AF_INET;
    addrSrv.sin_port=htons(PORT_T);

	//同服务器连接 
	err = connect(sockClient,(SOCKADDR*)&addrSrv,sizeof(SOCKADDR));//开始连接

	if(err == 0)
	{
		//发送数据
		memset((void*)request_buf,0,sizeof(request_buf));
		sprintf(request_buf,"{'CLIENT':7789,'TYPE':'REQ_COR','DATA':'%s'},", l_str_test);
		printf("向服务器方发送数据:%s\n",request_buf);
		//没有结尾的NULL
		err = send(sockClient, request_buf, strlen(request_buf), 0);
	}
	
	if(err >= 0)
	{
		//接收数据
		memset((void*)response_buf,0,sizeof(response_buf));
		printf("等待对方发送数据... \n");
		err = recv(sockClient, response_buf, sizeof(response_buf), 0);

		if(err > 0)
		{
			printf("服务器返回:%s\n", response_buf);
			err = dig_result(response_buf, result_buf);
		}
	}

	if(err == 0 && strlen(result_buf) > 0)
	{
		printf("原语句: %s\n", l_str_test);
		printf("纠错后：%s\n", result_buf);
	}
	else
	{
		printf("服务器失败。。。\n");
	}

    //结束通信
    closesocket(sockClient);//关闭服务器套接字
    WSACleanup();//结束套接字库的调用
    system("pause");
}