dlls/kernel32/tests/environ.c

   1 /*
   2  * Unit test suite for environment functions.
   3  *
   4  * Copyright 2002 Dmitry Timoshkov
   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
  23 #include "wine/test.h"
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #include "winerror.h"
  27 #include "winnls.h"
  28
  29 static CHAR string[MAX_PATH];
  30 #define ok_w(res, format, szString) \
  31 \
  32     WideCharToMultiByte(CP_ACP, 0, szString, -1, string, MAX_PATH, NULL, NULL); \
  33     ok(res, format, string);
  34
  35 static BOOL (WINAPI *pGetComputerNameExA)(COMPUTER_NAME_FORMAT,LPSTR,LPDWORD);
  36 static BOOL (WINAPI *pGetComputerNameExW)(COMPUTER_NAME_FORMAT,LPWSTR,LPDWORD);
  37
  38 static void init_functionpointers(void)
  39 {
  40     HMODULE hkernel32 = GetModuleHandleA("kernel32.dll");
  41
  42     pGetComputerNameExA = (void *)GetProcAddress(hkernel32, "GetComputerNameExA");
  43     pGetComputerNameExW = (void *)GetProcAddress(hkernel32, "GetComputerNameExW");
  44 }
  45
  46 static void test_GetSetEnvironmentVariableA(void)
  47 {
  48     char buf[256];
  49     BOOL ret;
  50     DWORD ret_size;
  51     static const char name[] = "SomeWildName";
  52     static const char name_cased[] = "sOMEwILDnAME";
  53     static const char value[] = "SomeWildValue";
  54
  55     ret = SetEnvironmentVariableA(name, value);
  56     ok(ret == TRUE,
  57        "unexpected error in SetEnvironmentVariableA, GetLastError=%d\n",
  58        GetLastError());
  59
  60     /* Try to retrieve the environment variable we just set */
  61     ret_size = GetEnvironmentVariableA(name, NULL, 0);
  62     ok(ret_size == strlen(value) + 1,
  63        "should return length with terminating 0 ret_size=%d\n", ret_size);
  64
  65     lstrcpyA(buf, "foo");
  66     ret_size = GetEnvironmentVariableA(name, buf, lstrlenA(value));
  67     ok(lstrcmpA(buf, "foo") == 0, "should not touch the buffer\n");
  68     ok(ret_size == strlen(value) + 1,
  69        "should return length with terminating 0 ret_size=%d\n", ret_size);
  70
  71     lstrcpyA(buf, "foo");
  72     ret_size = GetEnvironmentVariableA(name, buf, lstrlenA(value) + 1);
  73     ok(lstrcmpA(buf, value) == 0, "should touch the buffer\n");
  74     ok(ret_size == strlen(value),
  75        "should return length without terminating 0 ret_size=%d\n", ret_size);
  76
  77     lstrcpyA(buf, "foo");
  78     ret_size = GetEnvironmentVariableA(name_cased, buf, lstrlenA(value) + 1);
  79     ok(lstrcmpA(buf, value) == 0, "should touch the buffer\n");
  80     ok(ret_size == strlen(value),
  81        "should return length without terminating 0 ret_size=%d\n", ret_size);
  82
  83     /* Remove that environment variable */
  84     ret = SetEnvironmentVariableA(name_cased, NULL);
  85     ok(ret == TRUE, "should erase existing variable\n");
  86
  87     lstrcpyA(buf, "foo");
  88     ret_size = GetEnvironmentVariableA(name, buf, lstrlenA(value) + 1);
  89     ok(lstrcmpA(buf, "foo") == 0, "should not touch the buffer\n");
  90     ok(ret_size == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND,
  91        "should not find variable but ret_size=%d GetLastError=%d\n",
  92        ret_size, GetLastError());
  93
  94     /* Check behavior of SetEnvironmentVariableA(name, "") */
  95     ret = SetEnvironmentVariableA(name, value);
  96     ok(ret == TRUE,
  97        "unexpected error in SetEnvironmentVariableA, GetLastError=%d\n",
  98        GetLastError());
  99
 100     lstrcpyA(buf, "foo");
 101     ret_size = GetEnvironmentVariableA(name_cased, buf, lstrlenA(value) + 1);
 102     ok(lstrcmpA(buf, value) == 0, "should touch the buffer\n");
 103     ok(ret_size == strlen(value),
 104        "should return length without terminating 0 ret_size=%d\n", ret_size);
 105
 106     ret = SetEnvironmentVariableA(name_cased, "");
 107     ok(ret == TRUE,
 108        "should not fail with empty value but GetLastError=%d\n", GetLastError());
 109
 110     lstrcpyA(buf, "foo");
 111     SetLastError(0);
 112     ret_size = GetEnvironmentVariableA(name, buf, lstrlenA(value) + 1);
 113     ok(ret_size == 0 &&
 114        ((GetLastError() == 0 && lstrcmpA(buf, "") == 0) ||
 115         (GetLastError() == ERROR_ENVVAR_NOT_FOUND)),
 116        "%s should be set to \"\" (NT) or removed (Win9x) but ret_size=%d GetLastError=%d and buf=%s\n",
 117        name, ret_size, GetLastError(), buf);
 118
 119     /* Test the limits */
 120     ret_size = GetEnvironmentVariableA(NULL, NULL, 0);
 121     ok(ret_size == 0 && (GetLastError() == ERROR_INVALID_PARAMETER || GetLastError() == ERROR_ENVVAR_NOT_FOUND),
 122        "should not find variable but ret_size=%d GetLastError=%d\n",
 123        ret_size, GetLastError());
 124
 125     ret_size = GetEnvironmentVariableA(NULL, buf, lstrlenA(value) + 1);
 126     ok(ret_size == 0 && (GetLastError() == ERROR_INVALID_PARAMETER || GetLastError() == ERROR_ENVVAR_NOT_FOUND),
 127        "should not find variable but ret_size=%d GetLastError=%d\n",
 128        ret_size, GetLastError());
 129
 130     ret_size = GetEnvironmentVariableA("", buf, lstrlenA(value) + 1);
 131     ok(ret_size == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND,
 132        "should not find variable but ret_size=%d GetLastError=%d\n",
 133        ret_size, GetLastError());
 134 }
 135
 136 static void test_GetSetEnvironmentVariableW(void)
 137 {
 138     WCHAR buf[256];
 139     BOOL ret;
 140     DWORD ret_size;
 141     static const WCHAR name[] = {'S','o','m','e','W','i','l','d','N','a','m','e',0};
 142     static const WCHAR value[] = {'S','o','m','e','W','i','l','d','V','a','l','u','e',0};
 143     static const WCHAR name_cased[] = {'s','O','M','E','w','I','L','D','n','A','M','E',0};
 144     static const WCHAR empty_strW[] = { 0 };
 145     static const WCHAR fooW[] = {'f','o','o',0};
 146
 147     ret = SetEnvironmentVariableW(name, value);
 148     if (ret == FALSE && GetLastError()==ERROR_CALL_NOT_IMPLEMENTED)
 149     {
 150         /* Must be Win9x which doesn't support the Unicode functions */
 151         skip("SetEnvironmentVariableW is not implemented\n");
 152         return;
 153     }
 154     ok(ret == TRUE,
 155        "unexpected error in SetEnvironmentVariableW, GetLastError=%d\n",
 156        GetLastError());
 157
 158     /* Try to retrieve the environment variable we just set */
 159     ret_size = GetEnvironmentVariableW(name, NULL, 0);
 160     ok(ret_size == lstrlenW(value) + 1,
 161        "should return length with terminating 0 ret_size=%d\n",
 162        ret_size);
 163
 164     lstrcpyW(buf, fooW);
 165     ret_size = GetEnvironmentVariableW(name, buf, lstrlenW(value));
 166     ok_w(lstrcmpW(buf, fooW) == 0, "should not touch the buffer: %s\n", buf);
 167
 168     ok(ret_size == lstrlenW(value) + 1,
 169        "should return length with terminating 0 ret_size=%d\n", ret_size);
 170
 171     lstrcpyW(buf, fooW);
 172     ret_size = GetEnvironmentVariableW(name, buf, lstrlenW(value) + 1);
 173     ok(lstrcmpW(buf, value) == 0, "should touch the buffer\n");
 174     ok(ret_size == lstrlenW(value),
 175        "should return length without terminating 0 ret_size=%d\n", ret_size);
 176
 177     lstrcpyW(buf, fooW);
 178     ret_size = GetEnvironmentVariableW(name_cased, buf, lstrlenW(value) + 1);
 179     ok(lstrcmpW(buf, value) == 0, "should touch the buffer\n");
 180     ok(ret_size == lstrlenW(value),
 181        "should return length without terminating 0 ret_size=%d\n", ret_size);
 182
 183     /* Remove that environment variable */
 184     ret = SetEnvironmentVariableW(name_cased, NULL);
 185     ok(ret == TRUE, "should erase existing variable\n");
 186
 187     lstrcpyW(buf, fooW);
 188     ret_size = GetEnvironmentVariableW(name, buf, lstrlenW(value) + 1);
 189     ok(lstrcmpW(buf, fooW) == 0, "should not touch the buffer\n");
 190     ok(ret_size == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND,
 191        "should not find variable but ret_size=%d GetLastError=%d\n",
 192        ret_size, GetLastError());
 193
 194     /* Check behavior of SetEnvironmentVariableW(name, "") */
 195     ret = SetEnvironmentVariableW(name, value);
 196     ok(ret == TRUE,
 197        "unexpected error in SetEnvironmentVariableW, GetLastError=%d\n",
 198        GetLastError());
 199
 200     lstrcpyW(buf, fooW);
 201     ret_size = GetEnvironmentVariableW(name, buf, lstrlenW(value) + 1);
 202     ok(lstrcmpW(buf, value) == 0, "should touch the buffer\n");
 203     ok(ret_size == lstrlenW(value),
 204        "should return length without terminating 0 ret_size=%d\n", ret_size);
 205
 206     ret = SetEnvironmentVariableW(name_cased, empty_strW);
 207     ok(ret == TRUE, "should not fail with empty value but GetLastError=%d\n", GetLastError());
 208
 209     lstrcpyW(buf, fooW);
 210     ret_size = GetEnvironmentVariableW(name, buf, lstrlenW(value) + 1);
 211     ok(ret_size == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND,
 212        "should not find variable but ret_size=%d GetLastError=%d\n",
 213        ret_size, GetLastError());
 214     ok(lstrcmpW(buf, empty_strW) == 0, "should copy an empty string\n");
 215
 216     /* Test the limits */
 217     ret_size = GetEnvironmentVariableW(NULL, NULL, 0);
 218     ok(ret_size == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND,
 219        "should not find variable but ret_size=%d GetLastError=%d\n",
 220        ret_size, GetLastError());
 221
 222     if (0) /* Both tests crash on Vista */
 223     {
 224         ret_size = GetEnvironmentVariableW(NULL, buf, lstrlenW(value) + 1);
 225         ok(ret_size == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND,
 226            "should not find variable but ret_size=%d GetLastError=%d\n",
 227            ret_size, GetLastError());
 228
 229         ret = SetEnvironmentVariableW(NULL, NULL);
 230         ok(ret == FALSE && (GetLastError() == ERROR_INVALID_PARAMETER || GetLastError() == ERROR_ENVVAR_NOT_FOUND),
 231            "should fail with NULL, NULL but ret=%d and GetLastError=%d\n",
 232            ret, GetLastError());
 233     }
 234 }
 235
 236 static void test_ExpandEnvironmentStringsA(void)
 237 {
 238     const char* value="Long long value";
 239     const char* not_an_env_var="%NotAnEnvVar%";
 240     char buf[256], buf1[256], buf2[0x8000];
 241     DWORD ret_size, ret_size1;
 242
 243     SetEnvironmentVariableA("EnvVar", value);
 244
 245     ret_size = ExpandEnvironmentStringsA(NULL, buf1, sizeof(buf1));
 246     ok(ret_size == 1 || ret_size == 0 /* Win9x */,
 247        "ExpandEnvironmentStrings returned %d\n", ret_size);
 248
 249     /* Try to get the required buffer size 'the natural way' */
 250     strcpy(buf, "%EnvVar%");
 251     ret_size = ExpandEnvironmentStringsA(buf, NULL, 0);
 252     ok(ret_size == strlen(value)+1 || /* win98 */
 253        ret_size == strlen(value)+2 || /* win2k, XP, win2k3 */
 254        ret_size == 0 /* Win95 */,
 255        "ExpandEnvironmentStrings returned %d instead of %d, %d or %d\n",
 256        ret_size, lstrlenA(value)+1, lstrlenA(value)+2, 0);
 257
 258     /* Again, side-stepping the Win95 bug */
 259     ret_size = ExpandEnvironmentStringsA(buf, buf1, 0);
 260     /* v5.1.2600.2945 (XP SP2) returns len + 2 here! */
 261     ok(ret_size == strlen(value)+1 || ret_size == strlen(value)+2,
 262        "ExpandEnvironmentStrings returned %d instead of %d\n",
 263        ret_size, lstrlenA(value)+1);
 264
 265     /* Try with a buffer that's too small */
 266     ret_size = ExpandEnvironmentStringsA(buf, buf1, 12);
 267     /* v5.1.2600.2945 (XP SP2) returns len + 2 here! */
 268     ok(ret_size == strlen(value)+1 || ret_size == strlen(value)+2,
 269        "ExpandEnvironmentStrings returned %d instead of %d\n",
 270        ret_size, lstrlenA(value)+1);
 271
 272     /* Try with a buffer of just the right size */
 273     /* v5.1.2600.2945 (XP SP2) needs and returns len + 2 here! */
 274     ret_size = ExpandEnvironmentStringsA(buf, buf1, ret_size);
 275     ok(ret_size == strlen(value)+1 || ret_size == strlen(value)+2,
 276        "ExpandEnvironmentStrings returned %d instead of %d\n",
 277        ret_size, lstrlenA(value)+1);
 278     ok(!strcmp(buf1, value), "ExpandEnvironmentStrings returned [%s]\n", buf1);
 279
 280     /* Try with an unset environment variable */
 281     strcpy(buf, not_an_env_var);
 282     ret_size = ExpandEnvironmentStringsA(buf, buf1, sizeof(buf1));
 283     ok(ret_size == strlen(not_an_env_var)+1, "ExpandEnvironmentStrings returned %d instead of %d\n", ret_size, lstrlenA(value)+1);
 284     ok(!strcmp(buf1, not_an_env_var), "ExpandEnvironmentStrings returned [%s]\n", buf1);
 285
 286     /* test a large destination size */
 287     strcpy(buf, "12345");
 288     ret_size = ExpandEnvironmentStringsA(buf, buf2, sizeof(buf2));
 289     ok(!strcmp(buf, buf2), "ExpandEnvironmentStrings failed %s vs %s. ret_size = %d\n", buf, buf2, ret_size);
 290
 291     ret_size1 = GetWindowsDirectoryA(buf1,256);
 292     ok ((ret_size1 >0) && (ret_size1<256), "GetWindowsDirectory Failed\n");
 293     ret_size = ExpandEnvironmentStringsA("%SystemRoot%",buf,sizeof(buf));
 294     if (ERROR_ENVVAR_NOT_FOUND != GetLastError())
 295     {
 296         ok(!strcmp(buf, buf1), "ExpandEnvironmentStrings failed %s vs %s. ret_size = %d\n", buf, buf1, ret_size);
 297     }
 298
 299     /* Try with a variable that references another */
 300     SetEnvironmentVariableA("IndirectVar", "Foo%EnvVar%Bar");
 301     strcpy(buf, "Indirect-%IndirectVar%-Indirect");
 302     strcpy(buf2, "Indirect-Foo%EnvVar%Bar-Indirect");
 303     ret_size = ExpandEnvironmentStringsA(buf, buf1, sizeof(buf1));
 304     ok(ret_size == strlen(buf2)+1, "ExpandEnvironmentStrings returned %d instead of %d\n", ret_size, lstrlen(buf2)+1);
 305     ok(!strcmp(buf1, buf2), "ExpandEnvironmentStrings returned [%s]\n", buf1);
 306     SetEnvironmentVariableA("IndirectVar", NULL);
 307
 308     SetEnvironmentVariableA("EnvVar", NULL);
 309 }
 310
 311 static void test_GetComputerName(void)
 312 {
 313     DWORD size;
 314     BOOL ret;
 315     LPSTR name;
 316     LPWSTR nameW;
 317     DWORD error;
 318     int name_len;
 319
 320     size = 0;
 321     ret = GetComputerNameA((LPSTR)0xdeadbeef, &size);
 322     error = GetLastError();
 323     todo_wine
 324     ok(!ret && error == ERROR_BUFFER_OVERFLOW, "GetComputerNameA should have failed with ERROR_BUFFER_OVERFLOW instead of %d\n", error);
 325
 326     /* Only Vista returns the computer name length as documented in the MSDN */
 327     if (size != 0)
 328     {
 329         size++; /* nul terminating character */
 330         name = HeapAlloc(GetProcessHeap(), 0, size * sizeof(name[0]));
 331         ok(name != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 332         ret = GetComputerNameA(name, &size);
 333         ok(ret, "GetComputerNameA failed with error %d\n", GetLastError());
 334         HeapFree(GetProcessHeap(), 0, name);
 335     }
 336
 337     size = MAX_COMPUTERNAME_LENGTH + 1;
 338     name = HeapAlloc(GetProcessHeap(), 0, size * sizeof(name[0]));
 339     ok(name != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 340     ret = GetComputerNameA(name, &size);
 341     ok(ret, "GetComputerNameA failed with error %d\n", GetLastError());
 342     trace("computer name is \"%s\"\n", name);
 343     name_len = strlen(name);
 344     ok(size == name_len, "size should be same as length, name_len=%d, size=%d\n", name_len, size);
 345     HeapFree(GetProcessHeap(), 0, name);
 346
 347     size = 0;
 348     SetLastError(0xdeadbeef);
 349     ret = GetComputerNameW((LPWSTR)0xdeadbeef, &size);
 350     error = GetLastError();
 351     if (error == ERROR_CALL_NOT_IMPLEMENTED)
 352         skip("GetComputerNameW is not implemented\n");
 353     else
 354     {
 355         todo_wine
 356         ok(!ret && error == ERROR_BUFFER_OVERFLOW, "GetComputerNameW should have failed with ERROR_BUFFER_OVERFLOW instead of %d\n", error);
 357         size++; /* nul terminating character */
 358         nameW = HeapAlloc(GetProcessHeap(), 0, size * sizeof(nameW[0]));
 359         ok(nameW != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 360         ret = GetComputerNameW(nameW, &size);
 361         ok(ret, "GetComputerNameW failed with error %d\n", GetLastError());
 362         HeapFree(GetProcessHeap(), 0, nameW);
 363     }
 364 }
 365
 366 static void test_GetComputerNameExA(void)
 367 {
 368     DWORD size;
 369     BOOL ret;
 370     LPSTR name;
 371     DWORD error;
 372
 373     static const int MAX_COMP_NAME = 32767;
 374
 375     if (!pGetComputerNameExA)
 376     {
 377         skip("GetComputerNameExA function not implemented\n");
 378         return;
 379     }
 380
 381     size = 0;
 382     ret = pGetComputerNameExA(ComputerNameDnsDomain, (LPSTR)0xdeadbeef, &size);
 383     error = GetLastError();
 384     ok(ret == 0, "Expected 0, got %d\n", ret);
 385     ok(error == ERROR_MORE_DATA, "Expected ERROR_MORE_DATA, got %d\n", error);
 386
 387     /* size is not set in win2k */
 388     size = MAX_COMP_NAME;
 389     name = HeapAlloc(GetProcessHeap(), 0, size * sizeof(name[0]));
 390     ok(name != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 391     ret = pGetComputerNameExA(ComputerNameDnsDomain, name, &size);
 392     ok(ret, "GetComputerNameExA(ComputerNameDnsDomain) failed with error %d\n", GetLastError());
 393     trace("domain name is \"%s\"\n", name);
 394     HeapFree(GetProcessHeap(), 0, name);
 395
 396     size = 0;
 397     ret = pGetComputerNameExA(ComputerNameDnsFullyQualified, (LPSTR)0xdeadbeef, &size);
 398     error = GetLastError();
 399     ok(ret == 0, "Expected 0, got %d\n", ret);
 400     ok(error == ERROR_MORE_DATA, "Expected ERROR_MORE_DATA, got %d\n", error);
 401
 402     /* size is not set in win2k */
 403     size = MAX_COMP_NAME;
 404     name = HeapAlloc(GetProcessHeap(), 0, size * sizeof(name[0]));
 405     ok(name != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 406     ret = pGetComputerNameExA(ComputerNameDnsFullyQualified, name, &size);
 407     ok(ret, "GetComputerNameExA(ComputerNameDnsFullyQualified) failed with error %d\n", GetLastError());
 408     trace("fully qualified hostname is \"%s\"\n", name);
 409     HeapFree(GetProcessHeap(), 0, name);
 410
 411     size = 0;
 412     ret = pGetComputerNameExA(ComputerNameDnsHostname, (LPSTR)0xdeadbeef, &size);
 413     error = GetLastError();
 414     ok(ret == 0, "Expected 0, got %d\n", ret);
 415     ok(error == ERROR_MORE_DATA, "Expected ERROR_MORE_DATA, got %d\n", error);
 416
 417     /* size is not set in win2k */
 418     size = MAX_COMP_NAME;
 419     name = HeapAlloc(GetProcessHeap(), 0, size * sizeof(name[0]));
 420     ok(name != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 421     ret = pGetComputerNameExA(ComputerNameDnsHostname, name, &size);
 422     ok(ret, "GetComputerNameExA(ComputerNameDnsHostname) failed with error %d\n", GetLastError());
 423     trace("hostname is \"%s\"\n", name);
 424     HeapFree(GetProcessHeap(), 0, name);
 425
 426     size = 0;
 427     ret = pGetComputerNameExA(ComputerNameNetBIOS, (LPSTR)0xdeadbeef, &size);
 428     error = GetLastError();
 429     ok(ret == 0, "Expected 0, got %d\n", ret);
 430     ok(error == ERROR_MORE_DATA, "Expected ERROR_MORE_DATA, got %d\n", error);
 431
 432     /* size is not set in win2k */
 433     size = MAX_COMP_NAME;
 434     name = HeapAlloc(GetProcessHeap(), 0, size * sizeof(name[0]));
 435     ok(name != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 436     ret = pGetComputerNameExA(ComputerNameNetBIOS, name, &size);
 437     ok(ret, "GetComputerNameExA(ComputerNameNetBIOS) failed with error %d\n", GetLastError());
 438     trace("NetBIOS name is \"%s\"\n", name);
 439     HeapFree(GetProcessHeap(), 0, name);
 440 }
 441
 442 static void test_GetComputerNameExW(void)
 443 {
 444     DWORD size;
 445     BOOL ret;
 446     LPWSTR nameW;
 447     DWORD error;
 448
 449     if (!pGetComputerNameExW)
 450     {
 451         skip("GetComputerNameExW function not implemented\n");
 452         return;
 453     }
 454
 455     size = 0;
 456     ret = pGetComputerNameExW(ComputerNameDnsDomain, (LPWSTR)0xdeadbeef, &size);
 457     error = GetLastError();
 458     ok(!ret && error == ERROR_MORE_DATA, "GetComputerNameExW should have failed with ERROR_MORE_DATA instead of %d\n", error);
 459     nameW = HeapAlloc(GetProcessHeap(), 0, size * sizeof(nameW[0]));
 460     ok(nameW != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 461     ret = pGetComputerNameExW(ComputerNameDnsDomain, nameW, &size);
 462     ok(ret, "GetComputerNameExW(ComputerNameDnsDomain) failed with error %d\n", GetLastError());
 463     HeapFree(GetProcessHeap(), 0, nameW);
 464
 465     size = 0;
 466     ret = pGetComputerNameExW(ComputerNameDnsFullyQualified, (LPWSTR)0xdeadbeef, &size);
 467     error = GetLastError();
 468     ok(!ret && error == ERROR_MORE_DATA, "GetComputerNameExW should have failed with ERROR_MORE_DATA instead of %d\n", error);
 469     nameW = HeapAlloc(GetProcessHeap(), 0, size * sizeof(nameW[0]));
 470     ok(nameW != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 471     ret = pGetComputerNameExW(ComputerNameDnsFullyQualified, nameW, &size);
 472     ok(ret, "GetComputerNameExW(ComputerNameDnsFullyQualified) failed with error %d\n", GetLastError());
 473     HeapFree(GetProcessHeap(), 0, nameW);
 474
 475     size = 0;
 476     ret = pGetComputerNameExW(ComputerNameDnsHostname, (LPWSTR)0xdeadbeef, &size);
 477     error = GetLastError();
 478     ok(!ret && error == ERROR_MORE_DATA, "GetComputerNameExW should have failed with ERROR_MORE_DATA instead of %d\n", error);
 479     nameW = HeapAlloc(GetProcessHeap(), 0, size * sizeof(nameW[0]));
 480     ok(nameW != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 481     ret = pGetComputerNameExW(ComputerNameDnsHostname, nameW, &size);
 482     ok(ret, "GetComputerNameExW(ComputerNameDnsHostname) failed with error %d\n", GetLastError());
 483     HeapFree(GetProcessHeap(), 0, nameW);
 484
 485     size = 0;
 486     ret = pGetComputerNameExW(ComputerNameNetBIOS, (LPWSTR)0xdeadbeef, &size);
 487     error = GetLastError();
 488     ok(!ret && error == ERROR_MORE_DATA, "GetComputerNameExW should have failed with ERROR_MORE_DATA instead of %d\n", error);
 489     nameW = HeapAlloc(GetProcessHeap(), 0, size * sizeof(nameW[0]));
 490     ok(nameW != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 491     ret = pGetComputerNameExW(ComputerNameNetBIOS, nameW, &size);
 492     ok(ret, "GetComputerNameExW(ComputerNameNetBIOS) failed with error %d\n", GetLastError());
 493     HeapFree(GetProcessHeap(), 0, nameW);
 494 }
 495
 496 START_TEST(environ)
 497 {
 498     init_functionpointers();
 499
 500     test_GetSetEnvironmentVariableA();
 501     test_GetSetEnvironmentVariableW();
 502     test_ExpandEnvironmentStringsA();
 503     test_GetComputerName();
 504     test_GetComputerNameExA();
 505     test_GetComputerNameExW();
 506 }