#include "StdAfx.h" #include 
      
        #include 
       
         typedef struct _IO_STATUS_BLOCK {
        LONG Status;     LONG Information; } IO_STATUS_BLOCK, *PIO_STATUS_BLOCK; typedef struct _FILE_NAME_INFORMATION {
        ULONG FileNameLength;     WCHAR FileName[MAX_PATH]; } FILE_NAME_INFORMATION; FARPROC ZwQueryInformationFile; //通过文件句柄,得到文件所在盘符 BOOL GetVolumeNameByHandle(HANDLE hFile, char *szFullPath) {
    //得到所有磁盘卷的卷序号     char szBuf[500]; int i;     DWORD dwVolumeSerialNumber;     memset(szBuf, 0, sizeof(szBuf)); //通过句柄得到文件的卷序号 //得到卷序号 lpFileInformation.dwVolumeSerialNumber     BY_HANDLE_FILE_INFORMATION lpFileInformation; if(!GetFileInformationByHandle(hFile, &lpFileInformation) || (lpFileInformation.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))     {
    //通过句柄得到文件信息失败 或者 此句柄为文件夹句柄,并非文件句柄         return FALSE;     } if(::GetLogicalDriveStringsA(sizeof(szBuf) - 1,szBuf))     {
    for(i = 0; szBuf[i]; i += 4)         {
    //得到卷信息->卷序号             if(!stricmp(&(szBuf[i]), "A:\\") || !stricmp(&(szBuf[i]), "B:\\"))             {
    //忽略软盘 (一般不会使用,并且查询它的速度非常之慢)                 continue;             } if(GetVolumeInformationA(&(szBuf[i]), NULL, NULL,&dwVolumeSerialNumber,NULL, NULL, NULL, NULL))             {
    // 与 lpFileInformation.dwVolumeSerialNumber 比较 // 如果相同,则找到该磁盘                 if(dwVolumeSerialNumber == lpFileInformation.dwVolumeSerialNumber)                 {
    //找到                     char szVolumeName[4];                     memset(szVolumeName, 0, sizeof(szVolumeName));                     strcpy(szVolumeName, &(szBuf[i]));                     szVolumeName[strlen(szVolumeName)-1] = '\0'; //得到路径                     IO_STATUS_BLOCK isb;                     FILE_NAME_INFORMATION fni;                     HMODULE hNt = LoadLibraryA("ntdll.dll"); if(hNt)                     {
                            ZwQueryInformationFile = ::GetProcAddress(hNt, "ZwQueryInformationFile"); if(ZwQueryInformationFile)                         {
                                DWORD dwfni = sizeof(fni);                             DWORD dwRet = 0;                             __asm                             {
                                    push 9 ;                                 push dwfni ;                                 lea eax, fni ;                                 push eax ;                                 lea eax, isb ;                                 push eax ;                                 push hFile ;                                 mov eax, ZwQueryInformationFile ;                                 call eax ;//调用 ZwQueryInformationFile 函数                                 mov dwRet, eax;//得到返回值                             } if(!dwRet)                             {
    //获取文件路径成功                                 fni.FileName[fni.FileNameLength/2] = 0; //构造成完整路径名                                 char szFilePath[MAX_PATH+1];                                 memset(szFilePath, 0, sizeof(szFilePath));                                 WideCharToMultiByte( CP_ACP, 0, fni.FileName, -1, szFilePath, sizeof(szFilePath) - 1, NULL, NULL);                                 sprintf(szFullPath, "%s%s", szVolumeName, szFilePath); return TRUE;                             }                         }                         FreeLibrary(hNt);                     }                 }             }         }     } //没有找到     return FALSE; } void main() {
        HANDLE hFile = ::CreateFile(_T("F:\\test1.txt"), GENERIC_WRITE, FILE_SHARE_READ, NULL, CREATE_ALWAYS, 0, NULL); if(hFile == INVALID_HANDLE_VALUE)     {
            printf("ERROR(%d)\n", ::GetLastError()); return ;     } //得到路径名,合并成完整路径     char szFullPath[MAX_PATH];     memset(szFullPath, 0, sizeof(szFullPath)); if(GetVolumeNameByHandle(hFile, szFullPath))     {
            printf("%s\n\n", szFullPath);     } else     {
            printf("Not Found!\n\n");     } if(hFile != INVALID_HANDLE_VALUE)     {
            ::CloseHandle(hFile);     } }