winsocket main.h

最新推荐文章于 2022-06-24 20:09:13 发布

原创最新推荐文章于 2022-06-24 20:09:13 发布 · 6.5k 阅读

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#socket #struct #stream #服务器 #fp #include

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#include <stdio.h>
#include <Winsock2.h>
#include <windows.h>
#include "resource.h"

#pragma comment(lib, "ws2_32.lib")
#define MAX_CONNECTED_NUM 1 //最大连接数，设置为1个
#define MAX_IPADDRESS 260
#define SOCKETMSG WM_USER+501
#define WINSOCK_VERION 0x0101 //MAKEWORD(2, 0)

char fname[MAX_PATH];
char bufIP[MAX_IPADDRESS];
char bufPORT[80];
char szDlgTitle[] = "聊天程序1.0版";

WSADATA ws;
SOCKET skt=INVALID_SOCKET;//服务器(或者是客户端)
//SOCKET clientSkt[MAX_CONNECTED_NUM];//客户端数组,暂定为5个
SOCKET connected_skt=INVALID_SOCKET;//服务器和客户端所连接上之后,所建立的SOCKET
                      //连接建立之后,所有的数据通信,都是通过这个 Connected_skt进行的
                      //这个新建的SOCKET不可以再接受客户端连接,只有原来的那一个可以接受

struct sockaddr_in addr;//服务器的socket地址
struct sockaddr_in clientaddr;//客户端的

void LogFile(char *p)
{
    FILE *fp=fopen(fname,"a+");
    fprintf(fp,"%s/n",p);
    fclose(fp);
}

BOOL CreateServer(HWND hwnd)
{
if(WSAStartup(WINSOCK_VERION,&ws))
{
MessageBox(hwnd,"Winsock初始化失败", szDlgTitle,MB_OK|MB_ICONSTOP);
WSACleanup();
    return FALSE;
}//初始化

if( bind(skt,(SOCKADDR*)&addr,sizeof(addr)) == SOCKET_ERROR )
{
MessageBox(hwnd,"Socket绑定失败!", szDlgTitle,MB_OK);
return FALSE;
}

if( listen(skt,MAX_CONNECTED_NUM ) == SOCKET_ERROR )
{
MessageBox(hwnd,"监听失败!", szDlgTitle,MB_OK);
return FALSE;
}
char szIP[127],szPORT[127],buf[256];
GetDlgItemText(hwnd,IDC_IP,szIP,sizeof(szIP));
GetDlgItemText(hwnd,IDC_PORT,szPORT,sizeof(szPORT));
wsprintf(buf,">>>>>>服务器在地址:%s端口:%d监听",szIP,htons(atoi(bufPORT)));
SetDlgItemText(hwnd,IDC_REVTXT,buf);

//listen之后开始监听客户端的连接事件
if( WSAAsyncSelect(skt,hwnd,SOCKETMSG,FD_ACCEPT ) == SOCKET_ERROR )
{
MessageBox(hwnd,"WSAAsyncSelect() 失败", szDlgTitle,MB_OK);
return FALSE;
}

return TRUE;
}

BOOL CreateClient(HWND hwnd)
{
if(WSAStartup(WINSOCK_VERION,&ws)!=0)
{
MessageBox(hwnd,"Winsock初始化失败", szDlgTitle,MB_OK|MB_ICONSTOP);
WSACleanup();
return FALSE;
}//初始化

if((skt=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==INVALID_SOCKET)
{
      MessageBox(hwnd,"创建Socket失败!", szDlgTitle,MB_OK);
      closesocket(skt);
      return FALSE;
}
GetDlgItemText(hwnd,IDC_IP,bufIP,MAX_IPADDRESS);
GetDlgItemText(hwnd,IDC_PORT,bufPORT,79);
addr.sin_family=AF_INET;
addr.sin_addr.S_un.S_addr=inet_addr(bufIP);
addr.sin_port=htons(atoi(bufPORT));

/*
if( bind(skt,(SOCKADDR*)&addr,sizeof(addr)) == SOCKET_ERROR )
{
    MessageBox(hwnd,"Socket Bind 错误!", szDlgTitle,MB_OK);
    return FALSE;
}
*/

int nConnect=connect(skt,(SOCKADDR*)&addr,sizeof(addr)); //请求连接
　if(nConnect)
　　MessageBox(hwnd,"连接失败!",NULL,MB_OK);
　else
　　MessageBox(hwnd,"连接成功!",NULL,MB_OK);

if( WSAAsyncSelect(skt,hwnd,SOCKETMSG,FD_READ|FD_CLOSE|FD_CONNECT ) == SOCKET_ERROR )
{
MessageBox(hwnd,"WSAAsyncSelect() 失败", szDlgTitle,MB_OK);
return FALSE;
}
return TRUE;
}
BOOL HttpClient(void)
{
    WSADATA ws;
    SOCKET s;
    struct sockaddr_in addr;

    int iResult;
    long lResult;
    char strSubAddr[100], strBuffer[100];

lResult = WSAStartup(0x0101,&ws);
s = socket(AF_INET,SOCK_STREAM,0); //建立的是一种TCP/IP 连接

    addr.sin_family = AF_INET;
    addr.sin_port = htons(80);
    addr.sin_addr.s_addr = inet_addr("168.160.224.185"); // 计算机世界日报
    iResult=connect(s,(struct sockaddr *)&addr, sizeof(addr));
    if(SOCKET_ERROR == iResult)
    {
        // 连接失败
        WSACleanup();
        return FALSE;
    }
    else
    {
        // 连接成功
        strcpy(strSubAddr, "GET /99/tips/ /r/n");
        strcpy(fname, "C://index.htm");
        iResult = send(s, strSubAddr,strlen(strSubAddr),0);

        // 下载文件
        do
        {
            strset(strBuffer,' ');
            iResult = recv(s,strBuffer,sizeof(strBuffer),0);
            LogFile(strBuffer);
        } while( iResult !=0 );
    }

WSACleanup();
return TRUE;
}