UnOnline.cpp

#include <iostream>#include <string>#include <windows.h>#include <wininet.h>/*#pragma comment(lib,"WinInet")*/    /// Use this in VC++using namespace std;int main(){    LPCSTR lpszAccept[]=           {               "*/*"                                                            /// Accept types           },           lpszAgent="Mozilla/4.0 (Compatible; MSIE 6.0;)",                     /// Agent name           lpszHeader="Content-Type: application/x-www-form-urlencoded\r\n";    /// Addition header (Content type)    /// Post data    string lpPostData="action=unonline_user_mac&type=1&mac_ip=",IPAddr;    cout<<"Please input the IP address: ";    cin>>IPAddr;    lpPostData.append(IPAddr);    /// Initialize the use of the WinINet functions    HINTERNET hInternet=InternetOpen(        lpszAgent,        INTERNET_OPEN_TYPE_DIRECT,        NULL,        INTERNET_INVALID_PORT_NUMBER,        0    );    /// Open an FTP or HTTP session    HINTERNET hConnect=InternetConnect(        hInternet,        "gw.buaa.edu.cn",              /// Host name        INTERNET_DEFAULT_HTTP_PORT,        "",        "",        INTERNET_SERVICE_HTTP,        0,        1    );    /// Create an HTTP request handle    HINTERNET hRequest=HttpOpenRequest(        hConnect,        "POST",        "/change_user_balance.php",    /// Target        HTTP_VERSION,        "http://gw.buaa.edu.cn/",      /// Referer        lpszAccept,        INTERNET_FLAG_DONT_CACHE,        1    );    /// Send the request created above    BOOL bRequest=HttpSendRequest(        hRequest,        lpszHeader,        lstrlen(lpszHeader),        const_cast<char*>(lpPostData.c_str()),        lstrlen(lpPostData.c_str())    );    /// Error handler    if(!bRequest)    {        DWORD dwError=GetLastError();        cout<<"Request sent error: "<<dwError<<endl;        return dwError;    }    string strRequest;    char lpBuffer[1024];    DWORD dwByteRead=0;    ZeroMemory(lpBuffer,sizeof(lpBuffer));    /// Read data    while(        InternetReadFile(            hRequest,            lpBuffer,            sizeof(lpBuffer),    /// Number of bytes to be read            &dwByteRead          /// Number of bytes which were read        )        &&dwByteRead>0    )    {        lpBuffer[dwByteRead]='\0';        strRequest.append(lpBuffer);        ZeroMemory(lpBuffer,sizeof(lpBuffer));    }    /// Close Internet handle    InternetCloseHandle(hRequest);    InternetCloseHandle(hConnect);    InternetCloseHandle(hInternet);    cout<<"Succeeded!"<<endl<<"("<<strRequest<<")"<<endl;    return 0;}