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磁盘和驱动器管理(ring3 API)_weipatty的空间_百度空间

遍历卷并获得属性
1.GetLogicalDrivers或GetLogicalDriverStrings
获取主机上的逻辑驱动器
2.FindFirstVolume和FindNextVolume组合.
返回设备名:"}"形式的驱动器设备名

GetDriveType 获取驱动器类型
GetVolumeInformation 获取逻辑驱动器信息

GetLogicalDrivers
获取主机中所有的逻辑驱动器,以BitMap的形式返回
DWORD GetLogicalDrivers(void);
返回一个DWORD类型的值,{dy}位表示所对应的驱动器是否存在,一般情况下DWORD长度是32位
,在这个DWORD中,每一位对应了一个逻辑驱动器是否存在.
如第二位是"1"表示为"B",第四位为"1"表示"D"存在

GetLogicalDriverStrings获取主机中所有逻辑驱动器,以驱动器根路径字符返回
DWORD GetLogicalDriveString(
DWORD nBufferLength,
LPTSTR lpBuffer
);
nBufferLength:指数lpBuffer所指向的内存空间大小,以字节为单位
lpBuffer:指向存储返回结果字符串的内存空间

FindFirstVolume
查找主机中的{dy}个驱动器,返回驱动器设备名
HANDLE FindFirstVolum(
LPTSTR lpszVolumeName,
DWORD cchBufferLength
)
lpszVolumeName:指向驱动器名的内存缓冲区
cchBufferLength:参数lpszVolumeName所指向缓冲区的大小,以字节为单位

FindNextVolume
查找主机中后继的逻辑驱动器
BOOL FindNextVolume(
HANDLE hFindVolume,
LPTSTR lpszVolumeName,
DWORD cchBufferLength
)
hFindVolume:FindFirstVolume所返回驱动器查找句柄
lpszVolumeName:指向驱动器名的内存缓冲区
cchBufferLength:参数lpszVolumeName所指向缓冲区的大小,以字节为单

FindVolumeClose
关闭FindFirstVolume打开的卷遍历句柄
BOOL WINAPI FindVolumeClose(
HANDLE hFindVolume
);

GetDriverType
获取驱动器类型
GetDriverType(
LPCTSTR lpRootPathName
);
lpRootPathName:驱动器根路径,如"C:\"

GetVolumeInformation
获取逻辑驱动器信息
BOOL GetVolumeInformation(
LPCTSTR lpRootPathName,
LPTSTR lpVolumeNameBuffer,
DWORD nVolumeNameSize,
LPDWORD lpVolumeSerialNumber,
LPDWORD lpMaximumComponentLength,
LPDWORD lpFileSystemFlags,
LPTSTR lpFileSystemNameBuffer,
DWORD nFileSystemNameSize
);
注意：lpVolumeSerialNumber得到的只是卷区序列号，不是是硬盘Serial Number
会随格式化改变
lpRootPathName:输入参数,指向所要获取属性驱动器的根路径字符
lpVolumeNameBuffer:输出参数,返回驱动器名
nVolumeNameSize:输入参数,lpVolumeNameBuffer的内存缓冲区大小
lpVolumeSerialNumber:卷区序列号
lpMaximumComponentLength:输出参数,返回文件系统所支持的文件所组成部分的{zd0}值
lpFileSystemFlags:输出参数,属性可以用来判断多种驱动器属性值,如
FILE_VOLUME_QUOTAS表示支持磁盘配额,FILE_SUPPORTS_ENCRYPTION表示文件系统是否支持EFS加密等.
nFileSystemNameSize:lpFileSystemNameBuffer的缓冲区大小

#include <windows.h>
#include <stdlib.h>
#include <stdio.h>
/* 预定义　*/
#define BUFSIZE 1024
/* 函数申明　*/
BOOL GetDirverInfo(LPSTR szDrive);

/* ************************************
* 功能应用程序主函数，遍历驱动器并调用
* GetDirverInfo 获取驱动器属性
**************************************/
void main(void)
{
CHAR szLogicalDriveStrings[BUFSIZE];
PCHAR szDrive;

ZeroMemory(szLogicalDriveStrings,BUFSIZE);
// 获取逻辑驱动器卷标名
GetLogicalDriveStrings(BUFSIZE - 1,szLogicalDriveStrings);
szDrive = (PCHAR)szLogicalDriveStrings;
// 循环处理每个卷
do
{
   if(!GetDirverInfo(szDrive))
   {
    printf("\nGet Volume Information Error: %d", GetLastError());
   }
   szDrive += (lstrlen(szDrive)+1);
}
while(*szDrive!='\x00');
}

/* ************************************
* BOOL GetDirverInfo(LPSTR szDrive)
* 功能获取驱动器的属性
* 参数 LPSTR szDrive
* 指明要获取属性的驱动器的根路径如 C:\
* 返回值 BOOL 是否成功
**************************************/
BOOL GetDirverInfo(LPSTR szDrive)
{
UINT uDriveType;
DWORD dwVolumeSerialNumber;
DWORD dwMaximumComponentLength;
DWORD dwFileSystemFlags;
TCHAR szFileSystemNameBuffer[BUFSIZE];
printf("\n%s\n",szDrive);
uDriveType = GetDriveType(szDrive);
// 判断类型
switch(uDriveType)
{
case DRIVE_UNKNOWN:
   printf("The drive type cannot be determined. ");
   break;
case DRIVE_NO_ROOT_DIR:
   printf("The root path is invalid, for example, no volume is mounted at the path. ");
   break;
case DRIVE_REMOVABLE:
   printf("The drive is a type that has removable media, for example, a floppy drive or removable hard disk. ");
   break;
case DRIVE_FIXED:
   printf("The drive is a type that cannot be removed, for example, a fixed hard drive. ");
   break;
case DRIVE_REMOTE:
   printf("The drive is a remote (network) drive. ");
   break;
case DRIVE_CDROM:
   printf("The drive is a CD-ROM drive. ");
   break;
case DRIVE_RAMDISK:
   printf("The drive is a RAM disk. ");
   break;
default:
   break;
}
if (!GetVolumeInformation(
   szDrive, NULL, 0,
   &dwVolumeSerialNumber,
   &dwMaximumComponentLength,
   &dwFileSystemFlags,
   szFileSystemNameBuffer,
   BUFSIZE
   ))
{
   return FALSE;
}
printf ("\nVolume Serial Number is %u",dwVolumeSerialNumber);
printf ("\nMaximum Component Length is %u",dwMaximumComponentLength);
printf ("\nSystem Type is %s\n",szFileSystemNameBuffer);

if(dwFileSystemFlags & FILE_SUPPORTS_REPARSE_POINTS)
{
   printf ("The file system does not support volume mount points.\n");
}
if(dwFileSystemFlags & FILE_VOLUME_QUOTAS)
{
   printf ("The file system supports disk quotas.\n");
}
if(dwFileSystemFlags & FILE_CASE_SENSITIVE_SEARCH)
{
   printf ("The file system supports case-sensitive file names.\n");
}
//you can use these value to get more informaion
//
//FILE_CASE_PRESERVED_NAMES
//FILE_CASE_SENSITIVE_SEARCH
//FILE_FILE_COMPRESSION
//FILE_NAMED_STREAMS
//FILE_PERSISTENT_ACLS
//FILE_READ_ONLY_VOLUME
//FILE_SUPPORTS_ENCRYPTION
//FILE_SUPPORTS_OBJECT_IDS
//FILE_SUPPORTS_REPARSE_POINTS
//FILE_SUPPORTS_SPARSE_FILES
//FILE_UNICODE_ON_DISK
//FILE_VOLUME_IS_COMPRESSED
//FILE_VOLUME_QUOTAS
printf("...\n");
return TRUE;
}

使用FindFirstVolume,FindNextVolume和FindVolumeClose函数，实现遍历驱动器，获取驱动名称功能
#define _WIN32_WINNT 0x0501
/* 头文件　*/
#include <windows.h>
#include <stdio.h>
/* 预定义　*/
#define BUFSIZE MAX_PATH
/* 函数申明　*/
BOOL GetDirverInfo(LPSTR szDrive);

/* ************************************
* 功能应用程序主函数，遍历驱动器并调用
*   GetDirverInfo 获取驱动器属性
**************************************/
int main(void)
{
TCHAR buf[BUFSIZE];      // 卷标信息
HANDLE hVol;             // 卷遍历句柄
BOOL bFlag;

hVol = FindFirstVolume (buf, BUFSIZE );

if (hVol == INVALID_HANDLE_VALUE)
{
printf (TEXT("No volumes found!\n"));
return (-1);
}

GetDirverInfo (buf);

while( FindNextVolume(
   hVol,
   buf,
   BUFSIZE
   ))
{
   GetDirverInfo (buf);
}

bFlag = FindVolumeClose(
hVol
);

return (bFlag);
}

/* ************************************
* BOOL GetDirverInfo(LPSTR szDrive)
* 功能获取驱动器的属性
* 参数 LPSTR szDrive
* 指明要获取属性的驱动器的根路径如 C:\
* 返回值 BOOL 是否成功
**************************************/
BOOL GetDirverInfo(LPSTR szDrive)
{
UINT uDriveType;
DWORD dwVolumeSerialNumber;
DWORD dwMaximumComponentLength;
DWORD dwFileSystemFlags;
CHAR szFileSystemNameBuffer[BUFSIZE];
CHAR szDirveName[MAX_PATH];
printf("\n%s\n",szDrive);
uDriveType = GetDriveType(szDrive);
switch(uDriveType)
{
case DRIVE_UNKNOWN:
   printf("The drive type cannot be determined. ");
   break;
case DRIVE_NO_ROOT_DIR:
   printf("The root path is invalid, for example, no volume is mounted at the path. ");
   break;
case DRIVE_REMOVABLE:
   printf("The drive is a type that has removable media, for example, a floppy drive or removable hard disk. ");
   break;
case DRIVE_FIXED:
   printf("The drive is a type that cannot be removed, for example, a fixed hard drive. ");
   break;
case DRIVE_REMOTE:
   printf("The drive is a remote (network) drive. ");
   break;
case DRIVE_CDROM:
   printf("The drive is a CD-ROM drive. ");
   break;
case DRIVE_RAMDISK:
   printf("The drive is a RAM disk. ");
   break;
default:
   break;
}
if (!GetVolumeInformation(
   szDrive,
   szDirveName,
   MAX_PATH,
   &dwVolumeSerialNumber,
   &dwMaximumComponentLength,
   &dwFileSystemFlags,
   szFileSystemNameBuffer,
   BUFSIZE
   ))
{
   return FALSE;
}
if(0!=lstrlen(szDirveName))
{
   printf ("\nDrive Name is %s\n",szDirveName);
}

printf ("\nVolume Serial Number is %u",dwVolumeSerialNumber);
printf ("\nMaximum Component Length is %u",dwMaximumComponentLength);
printf ("\nSystem Type is %s\n",szFileSystemNameBuffer);

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