rostests/winetests/kernel32/volume.c

   1 /*
   2  * Unit test suite for volume functions
   3  *
   4  * Copyright 2006 Stefan Leichter
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "wine/test.h"
  22 #include "winbase.h"
  23 #include <stdio.h>
  24
  25 static HINSTANCE hdll;
  26 static BOOL (WINAPI * pGetVolumeNameForVolumeMountPointA)(LPCSTR, LPSTR, DWORD);
  27 static BOOL (WINAPI * pGetVolumeNameForVolumeMountPointW)(LPCWSTR, LPWSTR, DWORD);
  28 static HANDLE (WINAPI *pFindFirstVolumeA)(LPSTR,DWORD);
  29 static BOOL (WINAPI *pFindNextVolumeA)(HANDLE,LPSTR,DWORD);
  30 static BOOL (WINAPI *pFindVolumeClose)(HANDLE);
  31 static UINT (WINAPI *pGetLogicalDriveStringsA)(UINT,LPSTR);
  32 static UINT (WINAPI *pGetLogicalDriveStringsW)(UINT,LPWSTR);
  33 static BOOL (WINAPI *pGetVolumeInformationA)(LPCSTR, LPSTR, DWORD, LPDWORD, LPDWORD, LPDWORD, LPSTR, DWORD);
  34
  35 /* ############################### */
  36
  37 static void test_query_dos_deviceA(void)
  38 {
  39     char drivestr[] = "a:";
  40     char *p, *buffer, buffer2[2000];
  41     DWORD ret, ret2, buflen=32768;
  42     BOOL found = FALSE;
  43
  44     if (!pFindFirstVolumeA) {
  45         win_skip("On win9x, HARDDISK and RAMDISK not present\n");
  46         return;
  47     }
  48
  49     buffer = HeapAlloc( GetProcessHeap(), 0, buflen );
  50     ret = QueryDosDeviceA( NULL, buffer, buflen );
  51     ok(ret && GetLastError() != ERROR_INSUFFICIENT_BUFFER,
  52         "QueryDosDevice buffer too small\n");
  53     if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
  54         HeapFree( GetProcessHeap(), 0, buffer );
  55         return;
  56     }
  57     ok(ret, "QueryDosDeviceA failed to return list, last error %u\n", GetLastError());
  58     if (ret) {
  59         p = buffer;
  60         for (;;) {
  61             if (!strlen(p)) break;
  62             ret2 = QueryDosDeviceA( p, buffer2, sizeof(buffer2) );
  63             ok(ret2, "QueryDosDeviceA failed to return current mapping for %s, last error %u\n", p, GetLastError());
  64             p += strlen(p) + 1;
  65             if (ret <= (p-buffer)) break;
  66         }
  67     }
  68
  69     for (;drivestr[0] <= 'z'; drivestr[0]++) {
  70         /* Older W2K fails with ERROR_INSUFFICIENT_BUFFER when buflen is > 32767 */
  71         ret = QueryDosDeviceA( drivestr, buffer, buflen - 1);
  72         if(ret) {
  73             for (p = buffer; *p; p++) *p = toupper(*p);
  74             if (strstr(buffer, "HARDDISK") || strstr(buffer, "RAMDISK")) found = TRUE;
  75         }
  76     }
  77     ok(found, "expected at least one devicename to contain HARDDISK or RAMDISK\n");
  78     HeapFree( GetProcessHeap(), 0, buffer );
  79 }
  80
  81 static void test_FindFirstVolume(void)
  82 {
  83     char volume[51];
  84     HANDLE handle;
  85
  86     if (!pFindFirstVolumeA) {
  87         skip("FindFirstVolumeA not found\n");
  88         return;
  89     }
  90
  91     handle = pFindFirstVolumeA( volume, 0 );
  92     ok( handle == INVALID_HANDLE_VALUE, "succeeded with short buffer\n" );
  93     ok( GetLastError() == ERROR_MORE_DATA ||  /* XP */
  94         GetLastError() == ERROR_FILENAME_EXCED_RANGE,  /* Vista */
  95         "wrong error %u\n", GetLastError() );
  96     handle = pFindFirstVolumeA( volume, 49 );
  97     ok( handle == INVALID_HANDLE_VALUE, "succeeded with short buffer\n" );
  98     ok( GetLastError() == ERROR_FILENAME_EXCED_RANGE, "wrong error %u\n", GetLastError() );
  99     handle = pFindFirstVolumeA( volume, 51 );
 100     ok( handle != INVALID_HANDLE_VALUE, "failed err %u\n", GetLastError() );
 101     if (handle != INVALID_HANDLE_VALUE)
 102     {
 103         do
 104         {
 105             ok( strlen(volume) == 49, "bad volume name %s\n", volume );
 106             ok( !memcmp( volume, "\\\\?\\Volume{", 11 ), "bad volume name %s\n", volume );
 107             ok( !memcmp( volume + 47, "}\\", 2 ), "bad volume name %s\n", volume );
 108         } while (pFindNextVolumeA( handle, volume, MAX_PATH ));
 109         ok( GetLastError() == ERROR_NO_MORE_FILES, "wrong error %u\n", GetLastError() );
 110         pFindVolumeClose( handle );
 111     }
 112 }
 113
 114 static void test_GetVolumeNameForVolumeMountPointA(void)
 115 {
 116     BOOL ret;
 117     char volume[MAX_PATH], path[] = "c:\\";
 118     DWORD len = sizeof(volume), reti;
 119     char temp_path[MAX_PATH];
 120
 121     /* not present before w2k */
 122     if (!pGetVolumeNameForVolumeMountPointA) {
 123         skip("GetVolumeNameForVolumeMountPointA not found\n");
 124         return;
 125     }
 126
 127     reti = GetTempPathA(MAX_PATH, temp_path);
 128     ok(reti != 0, "GetTempPathA error %d\n", GetLastError());
 129     ok(reti < MAX_PATH, "temp path should fit into MAX_PATH\n");
 130
 131     ret = pGetVolumeNameForVolumeMountPointA(path, volume, 0);
 132     ok(ret == FALSE, "GetVolumeNameForVolumeMountPointA succeeded\n");
 133     ok(GetLastError() == ERROR_FILENAME_EXCED_RANGE ||
 134         GetLastError() == ERROR_INVALID_PARAMETER, /* Vista */
 135         "wrong error, last=%d\n", GetLastError());
 136
 137     if (0) { /* these crash on XP */
 138     ret = pGetVolumeNameForVolumeMountPointA(path, NULL, len);
 139     ok(ret == FALSE, "GetVolumeNameForVolumeMountPointA succeeded\n");
 140
 141     ret = pGetVolumeNameForVolumeMountPointA(NULL, volume, len);
 142     ok(ret == FALSE, "GetVolumeNameForVolumeMountPointA succeeded\n");
 143     }
 144
 145     ret = pGetVolumeNameForVolumeMountPointA(path, volume, len);
 146     ok(ret == TRUE, "GetVolumeNameForVolumeMountPointA failed\n");
 147     ok(!strncmp( volume, "\\\\?\\Volume{", 11),
 148         "GetVolumeNameForVolumeMountPointA failed to return valid string <%s>\n",
 149         volume);
 150
 151     /* test with too small buffer */
 152     ret = pGetVolumeNameForVolumeMountPointA(path, volume, 10);
 153     ok(ret == FALSE && GetLastError() == ERROR_FILENAME_EXCED_RANGE,
 154             "GetVolumeNameForVolumeMountPointA failed, wrong error returned, was %d, should be ERROR_FILENAME_EXCED_RANGE\n",
 155              GetLastError());
 156
 157     /* Try on a arbitrary directory */
 158     /* On FAT filesystems it seems that GetLastError() is set to
 159        ERROR_INVALID_FUNCTION. */
 160     ret = pGetVolumeNameForVolumeMountPointA(temp_path, volume, len);
 161     ok(ret == FALSE && (GetLastError() == ERROR_NOT_A_REPARSE_POINT ||
 162         GetLastError() == ERROR_INVALID_FUNCTION),
 163         "GetVolumeNameForVolumeMountPointA failed on %s, last=%d\n",
 164         temp_path, GetLastError());
 165
 166     /* Try on a nonexistent dos drive */
 167     path[2] = 0;
 168     for (;path[0] <= 'z'; path[0]++) {
 169         ret = QueryDosDeviceA( path, volume, len);
 170         if(!ret) break;
 171     }
 172     if (path[0] <= 'z')
 173     {
 174         path[2] = '\\';
 175         ret = pGetVolumeNameForVolumeMountPointA(path, volume, len);
 176         ok(ret == FALSE && GetLastError() == ERROR_FILE_NOT_FOUND,
 177             "GetVolumeNameForVolumeMountPointA failed on %s, last=%d\n",
 178             path, GetLastError());
 179
 180         /* Try without trailing \ and on a nonexistent dos drive  */
 181         path[2] = 0;
 182         ret = pGetVolumeNameForVolumeMountPointA(path, volume, len);
 183         ok(ret == FALSE && GetLastError() == ERROR_INVALID_NAME,
 184             "GetVolumeNameForVolumeMountPointA failed on %s, last=%d\n",
 185             path, GetLastError());
 186     }
 187 }
 188
 189 static void test_GetVolumeNameForVolumeMountPointW(void)
 190 {
 191     BOOL ret;
 192     WCHAR volume[MAX_PATH], path[] = {'c',':','\\',0};
 193     DWORD len = sizeof(volume) / sizeof(WCHAR);
 194
 195     /* not present before w2k */
 196     if (!pGetVolumeNameForVolumeMountPointW) {
 197         skip("GetVolumeNameForVolumeMountPointW not found\n");
 198         return;
 199     }
 200
 201     ret = pGetVolumeNameForVolumeMountPointW(path, volume, 0);
 202     ok(ret == FALSE, "GetVolumeNameForVolumeMountPointA succeeded\n");
 203     ok(GetLastError() == ERROR_FILENAME_EXCED_RANGE ||
 204         GetLastError() == ERROR_INVALID_PARAMETER, /* Vista */
 205         "wrong error, last=%d\n", GetLastError());
 206
 207     if (0) { /* these crash on XP */
 208     ret = pGetVolumeNameForVolumeMountPointW(path, NULL, len);
 209     ok(ret == FALSE, "GetVolumeNameForVolumeMountPointW succeeded\n");
 210
 211     ret = pGetVolumeNameForVolumeMountPointW(NULL, volume, len);
 212     ok(ret == FALSE, "GetVolumeNameForVolumeMountPointW succeeded\n");
 213     }
 214
 215     ret = pGetVolumeNameForVolumeMountPointW(path, volume, len);
 216     ok(ret == TRUE, "GetVolumeNameForVolumeMountPointW failed\n");
 217 }
 218
 219 static void test_GetLogicalDriveStringsA(void)
 220 {
 221     UINT size, size2;
 222     char *buf, *ptr;
 223
 224     if(!pGetLogicalDriveStringsA) {
 225         win_skip("GetLogicalDriveStringsA not available\n");
 226         return;
 227     }
 228
 229     size = pGetLogicalDriveStringsA(0, NULL);
 230     ok(size%4 == 1, "size = %d\n", size);
 231
 232     buf = HeapAlloc(GetProcessHeap(), 0, size);
 233
 234     *buf = 0;
 235     size2 = pGetLogicalDriveStringsA(2, buf);
 236     ok(size2 == size, "size2 = %d\n", size2);
 237     ok(!*buf, "buf changed\n");
 238
 239     size2 = pGetLogicalDriveStringsA(size, buf);
 240     ok(size2 == size-1, "size2 = %d\n", size2);
 241
 242     for(ptr = buf; ptr < buf+size2; ptr += 4) {
 243         ok(('A' <= *ptr && *ptr <= 'Z') ||
 244            (broken('a' <= *ptr && *ptr <= 'z')), /* Win9x and WinMe */
 245            "device name '%c' is not uppercase\n", *ptr);
 246         ok(ptr[1] == ':', "ptr[1] = %c, expected ':'\n", ptr[1]);
 247         ok(ptr[2] == '\\', "ptr[2] = %c expected '\\'\n", ptr[2]);
 248         ok(!ptr[3], "ptr[3] = %c expected nullbyte\n", ptr[3]);
 249     }
 250     ok(!*ptr, "buf[size2] is not nullbyte\n");
 251
 252     HeapFree(GetProcessHeap(), 0, buf);
 253 }
 254
 255 static void test_GetLogicalDriveStringsW(void)
 256 {
 257     UINT size, size2;
 258     WCHAR *buf, *ptr;
 259
 260     if(!pGetLogicalDriveStringsW) {
 261         win_skip("GetLogicalDriveStringsW not available\n");
 262         return;
 263     }
 264
 265     SetLastError(0xdeadbeef);
 266     size = pGetLogicalDriveStringsW(0, NULL);
 267     if (size == 0 && GetLastError() == ERROR_CALL_NOT_IMPLEMENTED) {
 268         win_skip("GetLogicalDriveStringsW not implemented\n");
 269         return;
 270     }
 271     ok(size%4 == 1, "size = %d\n", size);
 272
 273     buf = HeapAlloc(GetProcessHeap(), 0, size*sizeof(WCHAR));
 274
 275     *buf = 0;
 276     size2 = pGetLogicalDriveStringsW(2, buf);
 277     ok(size2 == size, "size2 = %d\n", size2);
 278     ok(!*buf, "buf changed\n");
 279
 280     size2 = pGetLogicalDriveStringsW(size, buf);
 281     ok(size2 == size-1, "size2 = %d\n", size2);
 282
 283     for(ptr = buf; ptr < buf+size2; ptr += 4) {
 284         ok('A' <= *ptr && *ptr <= 'Z', "device name '%c' is not uppercase\n", *ptr);
 285         ok(ptr[1] == ':', "ptr[1] = %c, expected ':'\n", ptr[1]);
 286         ok(ptr[2] == '\\', "ptr[2] = %c expected '\\'\n", ptr[2]);
 287         ok(!ptr[3], "ptr[3] = %c expected nullbyte\n", ptr[3]);
 288     }
 289     ok(!*ptr, "buf[size2] is not nullbyte\n");
 290
 291     HeapFree(GetProcessHeap(), 0, buf);
 292 }
 293
 294 static void test_GetVolumeInformationA(void)
 295 {
 296     BOOL ret;
 297     UINT result;
 298     char Root_Dir0[]="C:";
 299     char Root_Dir1[]="C:\\";
 300     char Root_Dir2[]="\\\\?\\C:\\";
 301     char volume[MAX_PATH+1];
 302     DWORD vol_name_size=MAX_PATH+1, vol_serial_num=-1, max_comp_len=0, fs_flags=0, fs_name_len=MAX_PATH+1;
 303     char vol_name_buf[MAX_PATH+1], fs_name_buf[MAX_PATH+1];
 304     char windowsdir[MAX_PATH+10];
 305     char currentdir[MAX_PATH+1];
 306
 307     if (!pGetVolumeInformationA) {
 308         win_skip("GetVolumeInformationA not found\n");
 309         return;
 310     }
 311     if (!pGetVolumeNameForVolumeMountPointA) {
 312         win_skip("GetVolumeNameForVolumeMountPointA not found\n");
 313         return;
 314     }
 315
 316     /* get windows drive letter and update strings for testing */
 317     result = GetWindowsDirectory(windowsdir, sizeof(windowsdir));
 318     ok(result < sizeof(windowsdir), "windowsdir is abnormally long!\n");
 319     ok(result != 0, "GetWindowsDirectory: error %d\n", GetLastError());
 320     Root_Dir0[0] = windowsdir[0];
 321     Root_Dir1[0] = windowsdir[0];
 322     Root_Dir2[4] = windowsdir[0];
 323
 324     /* get the unique volume name for the windows drive  */
 325     ret = pGetVolumeNameForVolumeMountPointA(Root_Dir1, volume, MAX_PATH);
 326     ok(ret == TRUE, "GetVolumeNameForVolumeMountPointA failed\n");
 327
 328     result = GetCurrentDirectory(MAX_PATH, currentdir);
 329     ok(result, "GetCurrentDirectory: error %d\n", GetLastError());
 330
 331     /*  ****  now start the tests       ****  */
 332     /* check for error on no trailing \   */
 333     if (result > 3)
 334     {
 335         ret = pGetVolumeInformationA(Root_Dir0, vol_name_buf, vol_name_size, NULL,
 336                 NULL, NULL, fs_name_buf, fs_name_len);
 337         ok(!ret && GetLastError() == ERROR_INVALID_NAME,
 338             "GetVolumeInformationA w/o '\\' did not fail, last error %u\n", GetLastError());
 339     }
 340     else
 341         skip("Running on a root directory\n");
 342
 343     /* check for error on no trailing \ when current dir is root dir */
 344     ret = SetCurrentDirectory(Root_Dir1);
 345     ok(ret, "SetCurrentDirectory: error %d\n", GetLastError());
 346     ret = pGetVolumeInformationA(Root_Dir0, vol_name_buf, vol_name_size, NULL,
 347             NULL, NULL, fs_name_buf, fs_name_len);
 348     todo_wine
 349     ok(ret, "GetVolumeInformationA failed, last error %u\n", GetLastError());
 350
 351     /* check for error on no trailing \ when current dir is windows dir */
 352     ret = SetCurrentDirectory(windowsdir);
 353     ok(ret, "SetCurrentDirectory: error %d\n", GetLastError());
 354     ret = pGetVolumeInformationA(Root_Dir0, vol_name_buf, vol_name_size, NULL,
 355             NULL, NULL, fs_name_buf, fs_name_len);
 356     ok(!ret && GetLastError() == ERROR_INVALID_NAME,
 357         "GetVolumeInformationA did not fail, last error %u\n", GetLastError());
 358
 359     /* reset current directory */
 360     ret = SetCurrentDirectory(currentdir);
 361     ok(ret, "SetCurrentDirectory: error %d\n", GetLastError());
 362
 363     /* try null root directory to return "root of the current directory"  */
 364     ret = pGetVolumeInformationA(NULL, vol_name_buf, vol_name_size, NULL,
 365             NULL, NULL, fs_name_buf, fs_name_len);
 366     ok(ret, "GetVolumeInformationA failed on null root dir, last error %u\n", GetLastError());
 367
 368     /* Try normal drive letter with trailing \  */
 369     ret = pGetVolumeInformationA(Root_Dir1, vol_name_buf, vol_name_size,
 370             &vol_serial_num, &max_comp_len, &fs_flags, fs_name_buf, fs_name_len);
 371     ok(ret, "GetVolumeInformationA failed, root=%s, last error=%u\n", Root_Dir1, GetLastError());
 372
 373     /* try again with dirve letter and the "disable parsing" prefix */
 374     ret = pGetVolumeInformationA(Root_Dir2, vol_name_buf, vol_name_size,
 375             &vol_serial_num, &max_comp_len, &fs_flags, fs_name_buf, fs_name_len);
 376     todo_wine ok(ret, "GetVolumeInformationA failed, root=%s, last error=%u\n", Root_Dir2, GetLastError());
 377
 378     /* try again with unique voluem name */
 379     ret = pGetVolumeInformationA(volume, vol_name_buf, vol_name_size,
 380             &vol_serial_num, &max_comp_len, &fs_flags, fs_name_buf, fs_name_len);
 381     todo_wine ok(ret, "GetVolumeInformationA failed, root=%s, last error=%u\n", volume, GetLastError());
 382
 383     /* try again with device name space  */
 384     Root_Dir2[2] = '.';
 385     ret = pGetVolumeInformationA(Root_Dir2, vol_name_buf, vol_name_size,
 386             &vol_serial_num, &max_comp_len, &fs_flags, fs_name_buf, fs_name_len);
 387     todo_wine ok(ret, "GetVolumeInformationA failed, root=%s, last error=%u\n", Root_Dir2, GetLastError());
 388
 389     /* try again with a directory off the root - should generate error  */
 390     if (windowsdir[strlen(windowsdir)-1] != '\\') strcat(windowsdir, "\\");
 391     ret = pGetVolumeInformationA(windowsdir, vol_name_buf, vol_name_size,
 392             &vol_serial_num, &max_comp_len, &fs_flags, fs_name_buf, fs_name_len);
 393     todo_wine ok(!ret && GetLastError()==ERROR_DIR_NOT_ROOT,
 394           "GetVolumeInformationA failed, root=%s, last error=%u\n", windowsdir, GetLastError());
 395 }
 396
 397 /* Test to check that unique volume name from windows dir mount point  */
 398 /* matches at least one of the unique volume names returned from the   */
 399 /* FindFirstVolumeA/FindNextVolumeA list.                              */
 400 static void test_enum_vols(void)
 401 {
 402     DWORD   ret;
 403     HANDLE  hFind = INVALID_HANDLE_VALUE;
 404     char    Volume_1[MAX_PATH] = {0};
 405     char    Volume_2[MAX_PATH] = {0};
 406     char    path[] = "c:\\";
 407     BOOL    found = FALSE;
 408     char    windowsdir[MAX_PATH];
 409
 410     if (!pGetVolumeNameForVolumeMountPointA) {
 411         win_skip("GetVolumeNameForVolumeMountPointA not found\n");
 412         return;
 413     }
 414
 415     /*get windows drive letter and update strings for testing  */
 416     ret = GetWindowsDirectory( windowsdir, sizeof(windowsdir) );
 417     ok(ret < sizeof(windowsdir), "windowsdir is abnormally long!\n");
 418     ok(ret != 0, "GetWindowsDirecory: error %d\n", GetLastError());
 419     path[0] = windowsdir[0];
 420
 421     /* get the unique volume name for the windows drive  */
 422     ret = pGetVolumeNameForVolumeMountPointA( path, Volume_1, MAX_PATH );
 423     ok(ret == TRUE, "GetVolumeNameForVolumeMountPointA failed\n");
 424     ok(strlen(Volume_1) == 49, "GetVolumeNameForVolumeMountPointA returned wrong length name %s\n", Volume_1);
 425
 426     /* get first unique volume name of list  */
 427     hFind = pFindFirstVolumeA( Volume_2, MAX_PATH );
 428     ok(hFind != INVALID_HANDLE_VALUE, "FindFirstVolume failed, err=%u\n",
 429                 GetLastError());
 430     if (hFind != INVALID_HANDLE_VALUE) {
 431     do
 432     {
 433         /* validate correct length of unique volume name  */
 434         ok(strlen(Volume_2) == 49, "Find[First/Next]Volume returned wrong length name %s\n", Volume_1);
 435         if (memcmp(Volume_1, Volume_2, 49) == 0)
 436         {
 437             found = TRUE;
 438             break;
 439         }
 440     } while (pFindNextVolumeA( hFind, Volume_2, MAX_PATH ));
 441     ok(found, "volume name %s not found by Find[First/Next]Volume\n", Volume_1);
 442     pFindVolumeClose( hFind );
 443     }
 444 }
 445
 446 START_TEST(volume)
 447 {
 448     hdll = GetModuleHandleA("kernel32.dll");
 449     pGetVolumeNameForVolumeMountPointA = (void *) GetProcAddress(hdll, "GetVolumeNameForVolumeMountPointA");
 450     pGetVolumeNameForVolumeMountPointW = (void *) GetProcAddress(hdll, "GetVolumeNameForVolumeMountPointW");
 451     pFindFirstVolumeA = (void *) GetProcAddress(hdll, "FindFirstVolumeA");
 452     pFindNextVolumeA = (void *) GetProcAddress(hdll, "FindNextVolumeA");
 453     pFindVolumeClose = (void *) GetProcAddress(hdll, "FindVolumeClose");
 454     pGetLogicalDriveStringsA = (void *) GetProcAddress(hdll, "GetLogicalDriveStringsA");
 455     pGetLogicalDriveStringsW = (void *) GetProcAddress(hdll, "GetLogicalDriveStringsW");
 456     pGetVolumeInformationA = (void *) GetProcAddress(hdll, "GetVolumeInformationA");
 457
 458     test_query_dos_deviceA();
 459     test_FindFirstVolume();
 460     test_GetVolumeNameForVolumeMountPointA();
 461     test_GetVolumeNameForVolumeMountPointW();
 462     test_GetLogicalDriveStringsA();
 463     test_GetLogicalDriveStringsW();
 464     test_GetVolumeInformationA();
 465     test_enum_vols();
 466 }