git.oblomov.eu Git - wine/blob - dlls/setupapi/tests/install.c

   1 /*
   2  * Unit test for setupapi.dll install functions
   3  *
   4  * Copyright 2007 Misha Koshelev
   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 <stdarg.h>
  22 #include <stdio.h>
  23 #include <string.h>
  24 #include <assert.h>
  25
  26 #include "windef.h"
  27 #include "winbase.h"
  28 #include "winnls.h"
  29 #include "winuser.h"
  30 #include "winreg.h"
  31 #include "winsvc.h"
  32 #include "setupapi.h"
  33 #include "shlobj.h"
  34
  35 #include "wine/test.h"
  36
  37 static const char inffile[] = "test.inf";
  38 static char CURR_DIR[MAX_PATH];
  39
  40 /* Notes on InstallHinfSectionA/W:
  41  * - InstallHinfSectionW on Win98 and InstallHinfSectionA on WinXP seem to be stubs - they do not do anything
  42  *   and simply return without displaying any error message or setting last error. We test whether
  43  *   InstallHinfSectionA sets last error, and if it doesn't we set it to NULL and use the W version if available.
  44  * - These functions do not return a value and do not always set last error to ERROR_SUCCESS when installation still
  45  *   occurs (e.g., unquoted inf file with spaces, registry keys are written but last error is 6). Also, on Win98 last error
  46  *   is set to ERROR_SUCCESS even if install fails (e.g., quoted inf file with spaces, no registry keys set, MessageBox with
  47  *   "Installation Error" displayed). Thus, we must use functional tests (e.g., is registry key created) to determine whether
  48  *   or not installation occurred.
  49  * - On installation problems, a MessageBox() is displayed and a Beep() is issued. The MessageBox() is disabled with a
  50  *   CBT hook.
  51  */
  52
  53 static void (WINAPI *pInstallHinfSectionA)(HWND, HINSTANCE, LPCSTR, INT);
  54 static void (WINAPI *pInstallHinfSectionW)(HWND, HINSTANCE, LPCWSTR, INT);
  55
  56 /*
  57  * Helpers
  58  */
  59
  60 static void create_inf_file(LPCSTR filename, const char *data)
  61 {
  62     DWORD res;
  63     HANDLE handle = CreateFile(filename, GENERIC_WRITE, 0, NULL,
  64                            CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
  65     assert(handle != INVALID_HANDLE_VALUE);
  66     assert(WriteFile(handle, data, strlen(data), &res, NULL));
  67     CloseHandle(handle);
  68 }
  69
  70 /* CBT hook to ensure a window (e.g., MessageBox) cannot be created */
  71 static HHOOK hhook;
  72 static LRESULT CALLBACK cbt_hook_proc(int nCode, WPARAM wParam, LPARAM lParam)
  73 {
  74     return nCode == HCBT_CREATEWND ? 1: CallNextHookEx(hhook, nCode, wParam, lParam);
  75 }
  76
  77 /*
  78  * Tests
  79  */
  80
  81 static const char *cmdline_inf = "[Version]\n"
  82     "Signature=\"$Chicago$\"\n"
  83     "[DefaultInstall]\n"
  84     "AddReg=Add.Settings\n"
  85     "[Add.Settings]\n"
  86     "HKCU,Software\\Wine\\setupapitest,,\n";
  87
  88 static void run_cmdline(LPCSTR section, int mode, LPCSTR path)
  89 {
  90     CHAR cmdline[MAX_PATH * 2];
  91
  92     sprintf(cmdline, "%s %d %s", section, mode, path);
  93     if (pInstallHinfSectionA) pInstallHinfSectionA(NULL, NULL, cmdline, 0);
  94     else
  95     {
  96         WCHAR cmdlinew[MAX_PATH * 2];
  97         MultiByteToWideChar(CP_ACP, 0, cmdline, -1, cmdlinew, MAX_PATH*2);
  98         pInstallHinfSectionW(NULL, NULL, cmdlinew, 0);
  99     }
 100 }
 101
 102 static void ok_registry(BOOL expectsuccess)
 103 {
 104     LONG ret;
 105
 106     /* Functional tests for success of install and clean up */
 107     ret = RegDeleteKey(HKEY_CURRENT_USER, "Software\\Wine\\setupapitest");
 108     ok((expectsuccess && ret == ERROR_SUCCESS) ||
 109        (!expectsuccess && ret == ERROR_FILE_NOT_FOUND),
 110        "Expected registry key Software\\Wine\\setupapitest to %s, RegDeleteKey returned %d\n",
 111        expectsuccess ? "exist" : "not exist",
 112        ret);
 113 }
 114
 115 /* Test command line processing */
 116 static void test_cmdline(void)
 117 {
 118     static const char infwithspaces[] = "test file.inf";
 119     char path[MAX_PATH];
 120
 121     create_inf_file(inffile, cmdline_inf);
 122     sprintf(path, "%s\\%s", CURR_DIR, inffile);
 123     run_cmdline("DefaultInstall", 128, path);
 124     ok_registry(TRUE);
 125     ok(DeleteFile(inffile), "Expected source inf to exist, last error was %d\n", GetLastError());
 126
 127     /* Test handling of spaces in path, unquoted and quoted */
 128     create_inf_file(infwithspaces, cmdline_inf);
 129
 130     sprintf(path, "%s\\%s", CURR_DIR, infwithspaces);
 131     run_cmdline("DefaultInstall", 128, path);
 132     ok_registry(TRUE);
 133
 134     sprintf(path, "\"%s\\%s\"", CURR_DIR, infwithspaces);
 135     run_cmdline("DefaultInstall", 128, path);
 136     ok_registry(FALSE);
 137
 138     ok(DeleteFile(infwithspaces), "Expected source inf to exist, last error was %d\n", GetLastError());
 139 }
 140
 141 static const char *cmdline_inf_reg = "[Version]\n"
 142     "Signature=\"$Chicago$\"\n"
 143     "[DefaultInstall]\n"
 144     "DelReg=Del.Settings\n"
 145     "[Del.Settings]\n"
 146     "HKCU,Software\\Wine\\setupapitest\n";
 147
 148 static void test_registry(void)
 149 {
 150     HKEY key;
 151     LONG res;
 152     char path[MAX_PATH];
 153
 154     /* First create a registry structure we would like to be deleted */
 155     ok(!RegCreateKeyA(HKEY_CURRENT_USER, "Software\\Wine\\setupapitest\\setupapitest", &key),
 156         "Expected RegCreateKeyA to succeed\n");
 157
 158     /* Doublecheck if the registry key is present */
 159     ok(!RegOpenKeyA(HKEY_CURRENT_USER, "Software\\Wine\\setupapitest\\setupapitest", &key),
 160         "Expected registry key to exist\n");
 161
 162     create_inf_file(inffile, cmdline_inf_reg);
 163     sprintf(path, "%s\\%s", CURR_DIR, inffile);
 164     run_cmdline("DefaultInstall", 128, path);
 165
 166     /* Check if the registry key is recursively deleted */
 167     res = RegOpenKeyA(HKEY_CURRENT_USER, "Software\\Wine\\setupapitest", &key);
 168     todo_wine
 169     ok(res == ERROR_FILE_NOT_FOUND, "Didn't expect the registry key to exist\n");
 170     /* Just in case */
 171     if (res == ERROR_SUCCESS)
 172     {
 173         RegDeleteKeyA(HKEY_CURRENT_USER, "Software\\Wine\\setupapitest\\setupapitest");
 174         RegDeleteKeyA(HKEY_CURRENT_USER, "Software\\Wine\\setupapitest");
 175     }
 176     ok(DeleteFile(inffile), "Expected source inf to exist, last error was %d\n", GetLastError());
 177 }
 178
 179 static void test_install_svc_from(void)
 180 {
 181     char inf[2048];
 182     char path[MAX_PATH];
 183     HINF infhandle;
 184     BOOL ret;
 185     SC_HANDLE scm_handle, svc_handle;
 186
 187     /* Bail out if we are on win98 */
 188     SetLastError(0xdeadbeef);
 189     scm_handle = OpenSCManagerA(NULL, NULL, GENERIC_ALL);
 190
 191     if (!scm_handle && (GetLastError() == ERROR_CALL_NOT_IMPLEMENTED))
 192     {
 193         skip("OpenSCManagerA is not implemented, we are most likely on win9x\n");
 194         return;
 195     }
 196     CloseServiceHandle(scm_handle);
 197
 198     /* Basic inf file to satisfy SetupOpenInfFileA */
 199     strcpy(inf, "[Version]\nSignature=\"$Chicago$\"\n");
 200     create_inf_file(inffile, inf);
 201     sprintf(path, "%s\\%s", CURR_DIR, inffile);
 202     infhandle = SetupOpenInfFileA(path, NULL, INF_STYLE_WIN4, NULL);
 203
 204     /* Nothing but the Version section */
 205     SetLastError(0xdeadbeef);
 206     ret = SetupInstallServicesFromInfSectionA(infhandle, "Winetest.Services", 0);
 207     ok(!ret, "Expected failure\n");
 208     ok(GetLastError() == ERROR_SECTION_NOT_FOUND,
 209         "Expected ERROR_SECTION_NOT_FOUND, got %08x\n", GetLastError());
 210     SetupCloseInfFile(infhandle);
 211     DeleteFile(inffile);
 212
 213     /* Add the section */
 214     strcat(inf, "[Winetest.Services]\n");
 215     create_inf_file(inffile, inf);
 216     infhandle = SetupOpenInfFileA(path, NULL, INF_STYLE_WIN4, NULL);
 217     SetLastError(0xdeadbeef);
 218     ret = SetupInstallServicesFromInfSectionA(infhandle, "Winetest.Services", 0);
 219     ok(!ret, "Expected failure\n");
 220     ok(GetLastError() == ERROR_SECTION_NOT_FOUND,
 221         "Expected ERROR_SECTION_NOT_FOUND, got %08x\n", GetLastError());
 222     SetupCloseInfFile(infhandle);
 223     DeleteFile(inffile);
 224
 225     /* Add a reference */
 226     strcat(inf, "AddService=Winetest,,Winetest.Service\n");
 227     create_inf_file(inffile, inf);
 228     infhandle = SetupOpenInfFileA(path, NULL, INF_STYLE_WIN4, NULL);
 229     SetLastError(0xdeadbeef);
 230     ret = SetupInstallServicesFromInfSectionA(infhandle, "Winetest.Services", 0);
 231     ok(!ret, "Expected failure\n");
 232     ok(GetLastError() == ERROR_BAD_SERVICE_INSTALLSECT,
 233         "Expected ERROR_BAD_SERVICE_INSTALLSECT, got %08x\n", GetLastError());
 234     SetupCloseInfFile(infhandle);
 235     DeleteFile(inffile);
 236
 237     /* Add the section */
 238     strcat(inf, "[Winetest.Service]\n");
 239     create_inf_file(inffile, inf);
 240     infhandle = SetupOpenInfFileA(path, NULL, INF_STYLE_WIN4, NULL);
 241     SetLastError(0xdeadbeef);
 242     ret = SetupInstallServicesFromInfSectionA(infhandle, "Winetest.Services", 0);
 243     ok(!ret, "Expected failure\n");
 244     ok(GetLastError() == ERROR_BAD_SERVICE_INSTALLSECT,
 245         "Expected ERROR_BAD_SERVICE_INSTALLSECT, got %08x\n", GetLastError());
 246     SetupCloseInfFile(infhandle);
 247     DeleteFile(inffile);
 248
 249     /* Just the ServiceBinary */
 250     strcat(inf, "ServiceBinary=%12%\\winetest.sys\n");
 251     create_inf_file(inffile, inf);
 252     infhandle = SetupOpenInfFileA(path, NULL, INF_STYLE_WIN4, NULL);
 253     SetLastError(0xdeadbeef);
 254     ret = SetupInstallServicesFromInfSectionA(infhandle, "Winetest.Services", 0);
 255     ok(!ret, "Expected failure\n");
 256     ok(GetLastError() == ERROR_BAD_SERVICE_INSTALLSECT,
 257         "Expected ERROR_BAD_SERVICE_INSTALLSECT, got %08x\n", GetLastError());
 258     SetupCloseInfFile(infhandle);
 259     DeleteFile(inffile);
 260
 261     /* Add the ServiceType */
 262     strcat(inf, "ServiceType=1\n");
 263     create_inf_file(inffile, inf);
 264     infhandle = SetupOpenInfFileA(path, NULL, INF_STYLE_WIN4, NULL);
 265     SetLastError(0xdeadbeef);
 266     ret = SetupInstallServicesFromInfSectionA(infhandle, "Winetest.Services", 0);
 267     ok(!ret, "Expected failure\n");
 268     ok(GetLastError() == ERROR_BAD_SERVICE_INSTALLSECT,
 269         "Expected ERROR_BAD_SERVICE_INSTALLSECT, got %08x\n", GetLastError());
 270     SetupCloseInfFile(infhandle);
 271     DeleteFile(inffile);
 272
 273     /* Add the StartType */
 274     strcat(inf, "StartType=4\n");
 275     create_inf_file(inffile, inf);
 276     infhandle = SetupOpenInfFileA(path, NULL, INF_STYLE_WIN4, NULL);
 277     SetLastError(0xdeadbeef);
 278     ret = SetupInstallServicesFromInfSectionA(infhandle, "Winetest.Services", 0);
 279     ok(!ret, "Expected failure\n");
 280     ok(GetLastError() == ERROR_BAD_SERVICE_INSTALLSECT,
 281         "Expected ERROR_BAD_SERVICE_INSTALLSECT, got %08x\n", GetLastError());
 282     SetupCloseInfFile(infhandle);
 283     DeleteFile(inffile);
 284
 285     /* This should be it, the minimal entries to install a service */
 286     strcat(inf, "ErrorControl=1");
 287     create_inf_file(inffile, inf);
 288     infhandle = SetupOpenInfFileA(path, NULL, INF_STYLE_WIN4, NULL);
 289     SetLastError(0xdeadbeef);
 290     ret = SetupInstallServicesFromInfSectionA(infhandle, "Winetest.Services", 0);
 291     ok(ret, "Expected success\n");
 292     ok(GetLastError() == ERROR_SUCCESS,
 293         "Expected ERROR_SUCCESS, got %08x\n", GetLastError());
 294     SetupCloseInfFile(infhandle);
 295     DeleteFile(inffile);
 296
 297     scm_handle = OpenSCManagerA(NULL, NULL, GENERIC_ALL);
 298
 299     /* Open the service to see if it's really there */
 300     svc_handle = OpenServiceA(scm_handle, "Winetest", DELETE);
 301     ok(svc_handle != NULL, "Service was not created\n");
 302
 303     SetLastError(0xdeadbeef);
 304     ret = DeleteService(svc_handle);
 305     ok(ret, "Service could not be deleted : %d\n", GetLastError());
 306
 307     CloseServiceHandle(svc_handle);
 308     CloseServiceHandle(scm_handle);
 309
 310     /* TODO: Test the Flags */
 311 }
 312
 313 static void test_driver_install(void)
 314 {
 315     HANDLE handle;
 316     SC_HANDLE scm_handle, svc_handle;
 317     BOOL ret;
 318     char path[MAX_PATH], windir[MAX_PATH], driver[MAX_PATH];
 319     DWORD attrs;
 320     /* Minimal stuff needed */
 321     static const char *inf =
 322         "[Version]\n"
 323         "Signature=\"$Chicago$\"\n"
 324         "[DestinationDirs]\n"
 325         "Winetest.DriverFiles=12\n"
 326         "[DefaultInstall]\n"
 327         "CopyFiles=Winetest.DriverFiles\n"
 328         "[DefaultInstall.Services]\n"
 329         "AddService=Winetest,,Winetest.Service\n"
 330         "[Winetest.Service]\n"
 331         "ServiceBinary=%12%\\winetest.sys\n"
 332         "ServiceType=1\n"
 333         "StartType=4\n"
 334         "ErrorControl=1\n"
 335         "[Winetest.DriverFiles]\n"
 336         "winetest.sys";
 337
 338     /* Bail out if we are on win98 */
 339     SetLastError(0xdeadbeef);
 340     scm_handle = OpenSCManagerA(NULL, NULL, GENERIC_ALL);
 341
 342     if (!scm_handle && (GetLastError() == ERROR_CALL_NOT_IMPLEMENTED))
 343     {
 344         skip("OpenSCManagerA is not implemented, we are most likely on win9x\n");
 345         return;
 346     }
 347     CloseServiceHandle(scm_handle);
 348
 349     /* Place where we expect the driver to be installed */
 350     GetWindowsDirectoryA(windir, MAX_PATH);
 351     lstrcpyA(driver, windir);
 352     lstrcatA(driver, "\\system32\\drivers\\winetest.sys");
 353
 354     /* Create a dummy driver file */
 355     handle = CreateFileA("winetest.sys", GENERIC_WRITE, 0, NULL,
 356                            CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
 357     CloseHandle(handle);
 358
 359     create_inf_file(inffile, inf);
 360     sprintf(path, "%s\\%s", CURR_DIR, inffile);
 361     run_cmdline("DefaultInstall", 128, path);
 362
 363     /* Driver should have been installed */
 364     attrs = GetFileAttributes(driver);
 365     ok(attrs != INVALID_FILE_ATTRIBUTES, "Expected driver to exist\n");
 366
 367     scm_handle = OpenSCManagerA(NULL, NULL, GENERIC_ALL);
 368
 369     /* Open the service to see if it's really there */
 370     svc_handle = OpenServiceA(scm_handle, "Winetest", DELETE);
 371     ok(svc_handle != NULL, "Service was not created\n");
 372
 373     SetLastError(0xdeadbeef);
 374     ret = DeleteService(svc_handle);
 375     ok(ret, "Service could not be deleted : %d\n", GetLastError());
 376
 377     CloseServiceHandle(svc_handle);
 378     CloseServiceHandle(scm_handle);
 379
 380     /* File cleanup */
 381     DeleteFile(inffile);
 382     DeleteFile("winetest.sys");
 383     DeleteFile(driver);
 384 }
 385
 386 static void test_profile_items(void)
 387 {
 388     char path[MAX_PATH], commonprogs[MAX_PATH];
 389     HMODULE hShell32;
 390     BOOL (WINAPI *pSHGetFolderPathA)(HWND hwnd, int nFolder, HANDLE hToken, DWORD dwFlags, LPSTR pszPath);
 391
 392     static const char *inf =
 393         "[Version]\n"
 394         "Signature=\"$Chicago$\"\n"
 395         "[DefaultInstall]\n"
 396         "ProfileItems=TestItem,TestItem2,TestGroup\n"
 397         "[TestItem]\n"
 398         "Name=TestItem\n"
 399         "CmdLine=11,,notepad.exe\n"
 400         "[TestItem2]\n"
 401         "Name=TestItem2\n"
 402         "CmdLine=11,,notepad.exe\n"
 403         "SubDir=TestDir\n"
 404         "[TestGroup]\n"
 405         "Name=TestGroup,4\n"
 406         ;
 407
 408     hShell32 = LoadLibraryA("shell32");
 409     pSHGetFolderPathA = (void*)GetProcAddress(hShell32, "SHGetFolderPathA");
 410     if (!pSHGetFolderPathA)
 411     {
 412         skip("SHGetFolderPathA is not available\n");
 413         goto cleanup;
 414     }
 415
 416     if (S_OK != pSHGetFolderPathA(NULL, CSIDL_COMMON_PROGRAMS, NULL, SHGFP_TYPE_CURRENT, commonprogs))
 417     {
 418         skip("No common program files directory exists\n");
 419         goto cleanup;
 420     }
 421
 422     create_inf_file(inffile, inf);
 423     sprintf(path, "%s\\%s", CURR_DIR, inffile);
 424     run_cmdline("DefaultInstall", 128, path);
 425
 426     snprintf(path, MAX_PATH, "%s\\TestItem.lnk", commonprogs);
 427     if (INVALID_FILE_ATTRIBUTES == GetFileAttributes(path))
 428     {
 429         win_skip("ProfileItems not implemented on this system\n");
 430     }
 431     else
 432     {
 433         snprintf(path, MAX_PATH, "%s\\TestDir", commonprogs);
 434         ok(INVALID_FILE_ATTRIBUTES != GetFileAttributes(path), "directory not created\n");
 435         snprintf(path, MAX_PATH, "%s\\TestDir\\TestItem2.lnk", commonprogs);
 436         ok(INVALID_FILE_ATTRIBUTES != GetFileAttributes(path), "link not created\n");
 437         snprintf(path, MAX_PATH, "%s\\TestGroup", commonprogs);
 438         ok(INVALID_FILE_ATTRIBUTES != GetFileAttributes(path), "group not created\n");
 439     }
 440
 441     snprintf(path, MAX_PATH, "%s\\TestItem.lnk", commonprogs);
 442     DeleteFile(path);
 443     snprintf(path, MAX_PATH, "%s\\TestDir\\TestItem2.lnk", commonprogs);
 444     DeleteFile(path);
 445     snprintf(path, MAX_PATH, "%s\\TestItem2.lnk", commonprogs);
 446     DeleteFile(path);
 447     snprintf(path, MAX_PATH, "%s\\TestDir", commonprogs);
 448     RemoveDirectory(path);
 449     snprintf(path, MAX_PATH, "%s\\TestGroup", commonprogs);
 450     RemoveDirectory(path);
 451
 452 cleanup:
 453     if (hShell32) FreeLibrary(hShell32);
 454     DeleteFile(inffile);
 455 }
 456
 457 START_TEST(install)
 458 {
 459     HMODULE hsetupapi = GetModuleHandle("setupapi.dll");
 460     char temp_path[MAX_PATH], prev_path[MAX_PATH];
 461     DWORD len;
 462
 463     GetCurrentDirectory(MAX_PATH, prev_path);
 464     GetTempPath(MAX_PATH, temp_path);
 465     SetCurrentDirectory(temp_path);
 466
 467     strcpy(CURR_DIR, temp_path);
 468     len = strlen(CURR_DIR);
 469     if(len && (CURR_DIR[len - 1] == '\\'))
 470         CURR_DIR[len - 1] = 0;
 471
 472     pInstallHinfSectionA = (void *)GetProcAddress(hsetupapi, "InstallHinfSectionA");
 473     pInstallHinfSectionW = (void *)GetProcAddress(hsetupapi, "InstallHinfSectionW");
 474     if (pInstallHinfSectionA)
 475     {
 476         /* Check if pInstallHinfSectionA sets last error or is a stub (as on WinXP) */
 477         static const char *minimal_inf = "[Version]\nSignature=\"$Chicago$\"\n";
 478         char cmdline[MAX_PATH*2];
 479         create_inf_file(inffile, minimal_inf);
 480         sprintf(cmdline, "DefaultInstall 128 %s\\%s", CURR_DIR, inffile);
 481         SetLastError(0xdeadbeef);
 482         pInstallHinfSectionA(NULL, NULL, cmdline, 0);
 483         if (GetLastError() == 0xdeadbeef)
 484         {
 485             skip("InstallHinfSectionA is broken (stub)\n");
 486             pInstallHinfSectionA = NULL;
 487         }
 488         ok(DeleteFile(inffile), "Expected source inf to exist, last error was %d\n", GetLastError());
 489     }
 490     if (!pInstallHinfSectionW && !pInstallHinfSectionA)
 491         skip("InstallHinfSectionA and InstallHinfSectionW are not available\n");
 492     else
 493     {
 494         /* Set CBT hook to disallow MessageBox creation in current thread */
 495         hhook = SetWindowsHookExA(WH_CBT, cbt_hook_proc, 0, GetCurrentThreadId());
 496         assert(hhook != 0);
 497
 498         test_cmdline();
 499         test_registry();
 500         test_install_svc_from();
 501         test_driver_install();
 502
 503         UnhookWindowsHookEx(hhook);
 504
 505         /* We have to run this test after the CBT hook is disabled because
 506             ProfileItems needs to create a window on Windows XP. */
 507         test_profile_items();
 508     }
 509
 510     SetCurrentDirectory(prev_path);
 511 }