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 ||
 167          lstrlenW(buf) == 0, /* Vista */
 168          "Expected untouched or empty buffer, got \"%s\"\n", buf);
 169
 170     ok(ret_size == lstrlenW(value) + 1,
 171        "should return length with terminating 0 ret_size=%d\n", ret_size);
 172
 173     lstrcpyW(buf, fooW);
 174     ret_size = GetEnvironmentVariableW(name, buf, lstrlenW(value) + 1);
 175     ok(lstrcmpW(buf, value) == 0, "should touch the buffer\n");
 176     ok(ret_size == lstrlenW(value),
 177        "should return length without terminating 0 ret_size=%d\n", ret_size);
 178
 179     lstrcpyW(buf, fooW);
 180     ret_size = GetEnvironmentVariableW(name_cased, buf, lstrlenW(value) + 1);
 181     ok(lstrcmpW(buf, value) == 0, "should touch the buffer\n");
 182     ok(ret_size == lstrlenW(value),
 183        "should return length without terminating 0 ret_size=%d\n", ret_size);
 184
 185     /* Remove that environment variable */
 186     ret = SetEnvironmentVariableW(name_cased, NULL);
 187     ok(ret == TRUE, "should erase existing variable\n");
 188
 189     lstrcpyW(buf, fooW);
 190     ret_size = GetEnvironmentVariableW(name, buf, lstrlenW(value) + 1);
 191     ok(lstrcmpW(buf, fooW) == 0, "should not touch the buffer\n");
 192     ok(ret_size == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND,
 193        "should not find variable but ret_size=%d GetLastError=%d\n",
 194        ret_size, GetLastError());
 195
 196     /* Check behavior of SetEnvironmentVariableW(name, "") */
 197     ret = SetEnvironmentVariableW(name, value);
 198     ok(ret == TRUE,
 199        "unexpected error in SetEnvironmentVariableW, GetLastError=%d\n",
 200        GetLastError());
 201
 202     lstrcpyW(buf, fooW);
 203     ret_size = GetEnvironmentVariableW(name, buf, lstrlenW(value) + 1);
 204     ok(lstrcmpW(buf, value) == 0, "should touch the buffer\n");
 205     ok(ret_size == lstrlenW(value),
 206        "should return length without terminating 0 ret_size=%d\n", ret_size);
 207
 208     ret = SetEnvironmentVariableW(name_cased, empty_strW);
 209     ok(ret == TRUE, "should not fail with empty value but GetLastError=%d\n", GetLastError());
 210
 211     lstrcpyW(buf, fooW);
 212     ret_size = GetEnvironmentVariableW(name, buf, lstrlenW(value) + 1);
 213     ok(ret_size == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND,
 214        "should not find variable but ret_size=%d GetLastError=%d\n",
 215        ret_size, GetLastError());
 216     ok(lstrcmpW(buf, empty_strW) == 0, "should copy an empty string\n");
 217
 218     /* Test the limits */
 219     ret_size = GetEnvironmentVariableW(NULL, NULL, 0);
 220     ok(ret_size == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND,
 221        "should not find variable but ret_size=%d GetLastError=%d\n",
 222        ret_size, GetLastError());
 223
 224     if (0) /* Both tests crash on Vista */
 225     {
 226         ret_size = GetEnvironmentVariableW(NULL, buf, lstrlenW(value) + 1);
 227         ok(ret_size == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND,
 228            "should not find variable but ret_size=%d GetLastError=%d\n",
 229            ret_size, GetLastError());
 230
 231         ret = SetEnvironmentVariableW(NULL, NULL);
 232         ok(ret == FALSE && (GetLastError() == ERROR_INVALID_PARAMETER || GetLastError() == ERROR_ENVVAR_NOT_FOUND),
 233            "should fail with NULL, NULL but ret=%d and GetLastError=%d\n",
 234            ret, GetLastError());
 235     }
 236 }
 237
 238 static void test_ExpandEnvironmentStringsA(void)
 239 {
 240     const char* value="Long long value";
 241     const char* not_an_env_var="%NotAnEnvVar%";
 242     char buf[256], buf1[256], buf2[0x8000];
 243     DWORD ret_size, ret_size1;
 244
 245     SetEnvironmentVariableA("EnvVar", value);
 246
 247     ret_size = ExpandEnvironmentStringsA(NULL, buf1, sizeof(buf1));
 248     ok(ret_size == 1 || ret_size == 0 /* Win9x */,
 249        "ExpandEnvironmentStrings returned %d\n", ret_size);
 250
 251     /* Try to get the required buffer size 'the natural way' */
 252     strcpy(buf, "%EnvVar%");
 253     ret_size = ExpandEnvironmentStringsA(buf, NULL, 0);
 254     ok(ret_size == strlen(value)+1 || /* win98 */
 255        ret_size == strlen(value)+2 || /* win2k, XP, win2k3 */
 256        ret_size == 0 /* Win95 */,
 257        "ExpandEnvironmentStrings returned %d instead of %d, %d or %d\n",
 258        ret_size, lstrlenA(value)+1, lstrlenA(value)+2, 0);
 259
 260     /* Again, side-stepping the Win95 bug */
 261     ret_size = ExpandEnvironmentStringsA(buf, buf1, 0);
 262     /* v5.1.2600.2945 (XP SP2) returns len + 2 here! */
 263     ok(ret_size == strlen(value)+1 || ret_size == strlen(value)+2,
 264        "ExpandEnvironmentStrings returned %d instead of %d\n",
 265        ret_size, lstrlenA(value)+1);
 266
 267     /* Try with a buffer that's too small */
 268     ret_size = ExpandEnvironmentStringsA(buf, buf1, 12);
 269     /* v5.1.2600.2945 (XP SP2) returns len + 2 here! */
 270     ok(ret_size == strlen(value)+1 || ret_size == strlen(value)+2,
 271        "ExpandEnvironmentStrings returned %d instead of %d\n",
 272        ret_size, lstrlenA(value)+1);
 273
 274     /* Try with a buffer of just the right size */
 275     /* v5.1.2600.2945 (XP SP2) needs and returns len + 2 here! */
 276     ret_size = ExpandEnvironmentStringsA(buf, buf1, ret_size);
 277     ok(ret_size == strlen(value)+1 || ret_size == strlen(value)+2,
 278        "ExpandEnvironmentStrings returned %d instead of %d\n",
 279        ret_size, lstrlenA(value)+1);
 280     ok(!strcmp(buf1, value), "ExpandEnvironmentStrings returned [%s]\n", buf1);
 281
 282     /* Try with an unset environment variable */
 283     strcpy(buf, not_an_env_var);
 284     ret_size = ExpandEnvironmentStringsA(buf, buf1, sizeof(buf1));
 285     ok(ret_size == strlen(not_an_env_var)+1, "ExpandEnvironmentStrings returned %d instead of %d\n", ret_size, lstrlenA(value)+1);
 286     ok(!strcmp(buf1, not_an_env_var), "ExpandEnvironmentStrings returned [%s]\n", buf1);
 287
 288     /* test a large destination size */
 289     strcpy(buf, "12345");
 290     ret_size = ExpandEnvironmentStringsA(buf, buf2, sizeof(buf2));
 291     ok(!strcmp(buf, buf2), "ExpandEnvironmentStrings failed %s vs %s. ret_size = %d\n", buf, buf2, ret_size);
 292
 293     ret_size1 = GetWindowsDirectoryA(buf1,256);
 294     ok ((ret_size1 >0) && (ret_size1<256), "GetWindowsDirectory Failed\n");
 295     ret_size = ExpandEnvironmentStringsA("%SystemRoot%",buf,sizeof(buf));
 296     if (ERROR_ENVVAR_NOT_FOUND != GetLastError())
 297     {
 298         ok(!strcmp(buf, buf1), "ExpandEnvironmentStrings failed %s vs %s. ret_size = %d\n", buf, buf1, ret_size);
 299     }
 300
 301     /* Try with a variable that references another */
 302     SetEnvironmentVariableA("IndirectVar", "Foo%EnvVar%Bar");
 303     strcpy(buf, "Indirect-%IndirectVar%-Indirect");
 304     strcpy(buf2, "Indirect-Foo%EnvVar%Bar-Indirect");
 305     ret_size = ExpandEnvironmentStringsA(buf, buf1, sizeof(buf1));
 306     ok(ret_size == strlen(buf2)+1, "ExpandEnvironmentStrings returned %d instead of %d\n", ret_size, lstrlen(buf2)+1);
 307     ok(!strcmp(buf1, buf2), "ExpandEnvironmentStrings returned [%s]\n", buf1);
 308     SetEnvironmentVariableA("IndirectVar", NULL);
 309
 310     SetEnvironmentVariableA("EnvVar", NULL);
 311 }
 312
 313 static void test_GetComputerName(void)
 314 {
 315     DWORD size;
 316     BOOL ret;
 317     LPSTR name;
 318     LPWSTR nameW;
 319     DWORD error;
 320     int name_len;
 321
 322     size = 0;
 323     ret = GetComputerNameA((LPSTR)0xdeadbeef, &size);
 324     error = GetLastError();
 325     todo_wine
 326     ok(!ret && error == ERROR_BUFFER_OVERFLOW, "GetComputerNameA should have failed with ERROR_BUFFER_OVERFLOW instead of %d\n", error);
 327
 328     /* Only Vista returns the computer name length as documented in the MSDN */
 329     if (size != 0)
 330     {
 331         size++; /* nul terminating character */
 332         name = HeapAlloc(GetProcessHeap(), 0, size * sizeof(name[0]));
 333         ok(name != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 334         ret = GetComputerNameA(name, &size);
 335         ok(ret, "GetComputerNameA failed with error %d\n", GetLastError());
 336         HeapFree(GetProcessHeap(), 0, name);
 337     }
 338
 339     size = MAX_COMPUTERNAME_LENGTH + 1;
 340     name = HeapAlloc(GetProcessHeap(), 0, size * sizeof(name[0]));
 341     ok(name != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 342     ret = GetComputerNameA(name, &size);
 343     ok(ret, "GetComputerNameA failed with error %d\n", GetLastError());
 344     trace("computer name is \"%s\"\n", name);
 345     name_len = strlen(name);
 346     ok(size == name_len, "size should be same as length, name_len=%d, size=%d\n", name_len, size);
 347     HeapFree(GetProcessHeap(), 0, name);
 348
 349     size = 0;
 350     SetLastError(0xdeadbeef);
 351     ret = GetComputerNameW((LPWSTR)0xdeadbeef, &size);
 352     error = GetLastError();
 353     if (error == ERROR_CALL_NOT_IMPLEMENTED)
 354         skip("GetComputerNameW is not implemented\n");
 355     else
 356     {
 357         todo_wine
 358         ok(!ret && error == ERROR_BUFFER_OVERFLOW, "GetComputerNameW should have failed with ERROR_BUFFER_OVERFLOW instead of %d\n", error);
 359         size++; /* nul terminating character */
 360         nameW = HeapAlloc(GetProcessHeap(), 0, size * sizeof(nameW[0]));
 361         ok(nameW != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 362         ret = GetComputerNameW(nameW, &size);
 363         ok(ret, "GetComputerNameW failed with error %d\n", GetLastError());
 364         HeapFree(GetProcessHeap(), 0, nameW);
 365     }
 366 }
 367
 368 static void test_GetComputerNameExA(void)
 369 {
 370     DWORD size;
 371     BOOL ret;
 372     LPSTR name;
 373     DWORD error;
 374
 375     static const int MAX_COMP_NAME = 32767;
 376
 377     if (!pGetComputerNameExA)
 378     {
 379         skip("GetComputerNameExA function not implemented\n");
 380         return;
 381     }
 382
 383     size = 0;
 384     ret = pGetComputerNameExA(ComputerNameDnsDomain, (LPSTR)0xdeadbeef, &size);
 385     error = GetLastError();
 386     ok(ret == 0, "Expected 0, got %d\n", ret);
 387     ok(error == ERROR_MORE_DATA, "Expected ERROR_MORE_DATA, got %d\n", error);
 388
 389     /* size is not set in win2k */
 390     size = MAX_COMP_NAME;
 391     name = HeapAlloc(GetProcessHeap(), 0, size * sizeof(name[0]));
 392     ok(name != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 393     ret = pGetComputerNameExA(ComputerNameDnsDomain, name, &size);
 394     ok(ret, "GetComputerNameExA(ComputerNameDnsDomain) failed with error %d\n", GetLastError());
 395     trace("domain name is \"%s\"\n", name);
 396     HeapFree(GetProcessHeap(), 0, name);
 397
 398     size = 0;
 399     ret = pGetComputerNameExA(ComputerNameDnsFullyQualified, (LPSTR)0xdeadbeef, &size);
 400     error = GetLastError();
 401     ok(ret == 0, "Expected 0, got %d\n", ret);
 402     ok(error == ERROR_MORE_DATA, "Expected ERROR_MORE_DATA, got %d\n", error);
 403
 404     /* size is not set in win2k */
 405     size = MAX_COMP_NAME;
 406     name = HeapAlloc(GetProcessHeap(), 0, size * sizeof(name[0]));
 407     ok(name != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 408     ret = pGetComputerNameExA(ComputerNameDnsFullyQualified, name, &size);
 409     ok(ret, "GetComputerNameExA(ComputerNameDnsFullyQualified) failed with error %d\n", GetLastError());
 410     trace("fully qualified hostname is \"%s\"\n", name);
 411     HeapFree(GetProcessHeap(), 0, name);
 412
 413     size = 0;
 414     ret = pGetComputerNameExA(ComputerNameDnsHostname, (LPSTR)0xdeadbeef, &size);
 415     error = GetLastError();
 416     ok(ret == 0, "Expected 0, got %d\n", ret);
 417     ok(error == ERROR_MORE_DATA, "Expected ERROR_MORE_DATA, got %d\n", error);
 418
 419     /* size is not set in win2k */
 420     size = MAX_COMP_NAME;
 421     name = HeapAlloc(GetProcessHeap(), 0, size * sizeof(name[0]));
 422     ok(name != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 423     ret = pGetComputerNameExA(ComputerNameDnsHostname, name, &size);
 424     ok(ret, "GetComputerNameExA(ComputerNameDnsHostname) failed with error %d\n", GetLastError());
 425     trace("hostname is \"%s\"\n", name);
 426     HeapFree(GetProcessHeap(), 0, name);
 427
 428     size = 0;
 429     ret = pGetComputerNameExA(ComputerNameNetBIOS, (LPSTR)0xdeadbeef, &size);
 430     error = GetLastError();
 431     ok(ret == 0, "Expected 0, got %d\n", ret);
 432     ok(error == ERROR_MORE_DATA, "Expected ERROR_MORE_DATA, got %d\n", error);
 433
 434     /* size is not set in win2k */
 435     size = MAX_COMP_NAME;
 436     name = HeapAlloc(GetProcessHeap(), 0, size * sizeof(name[0]));
 437     ok(name != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 438     ret = pGetComputerNameExA(ComputerNameNetBIOS, name, &size);
 439     ok(ret, "GetComputerNameExA(ComputerNameNetBIOS) failed with error %d\n", GetLastError());
 440     trace("NetBIOS name is \"%s\"\n", name);
 441     HeapFree(GetProcessHeap(), 0, name);
 442 }
 443
 444 static void test_GetComputerNameExW(void)
 445 {
 446     DWORD size;
 447     BOOL ret;
 448     LPWSTR nameW;
 449     DWORD error;
 450
 451     if (!pGetComputerNameExW)
 452     {
 453         skip("GetComputerNameExW function not implemented\n");
 454         return;
 455     }
 456
 457     size = 0;
 458     ret = pGetComputerNameExW(ComputerNameDnsDomain, (LPWSTR)0xdeadbeef, &size);
 459     error = GetLastError();
 460     ok(!ret && error == ERROR_MORE_DATA, "GetComputerNameExW should have failed with ERROR_MORE_DATA instead of %d\n", error);
 461     nameW = HeapAlloc(GetProcessHeap(), 0, size * sizeof(nameW[0]));
 462     ok(nameW != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 463     ret = pGetComputerNameExW(ComputerNameDnsDomain, nameW, &size);
 464     ok(ret, "GetComputerNameExW(ComputerNameDnsDomain) failed with error %d\n", GetLastError());
 465     HeapFree(GetProcessHeap(), 0, nameW);
 466
 467     size = 0;
 468     ret = pGetComputerNameExW(ComputerNameDnsFullyQualified, (LPWSTR)0xdeadbeef, &size);
 469     error = GetLastError();
 470     ok(!ret && error == ERROR_MORE_DATA, "GetComputerNameExW should have failed with ERROR_MORE_DATA instead of %d\n", error);
 471     nameW = HeapAlloc(GetProcessHeap(), 0, size * sizeof(nameW[0]));
 472     ok(nameW != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 473     ret = pGetComputerNameExW(ComputerNameDnsFullyQualified, nameW, &size);
 474     ok(ret, "GetComputerNameExW(ComputerNameDnsFullyQualified) failed with error %d\n", GetLastError());
 475     HeapFree(GetProcessHeap(), 0, nameW);
 476
 477     size = 0;
 478     ret = pGetComputerNameExW(ComputerNameDnsHostname, (LPWSTR)0xdeadbeef, &size);
 479     error = GetLastError();
 480     ok(!ret && error == ERROR_MORE_DATA, "GetComputerNameExW should have failed with ERROR_MORE_DATA instead of %d\n", error);
 481     nameW = HeapAlloc(GetProcessHeap(), 0, size * sizeof(nameW[0]));
 482     ok(nameW != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 483     ret = pGetComputerNameExW(ComputerNameDnsHostname, nameW, &size);
 484     ok(ret, "GetComputerNameExW(ComputerNameDnsHostname) failed with error %d\n", GetLastError());
 485     HeapFree(GetProcessHeap(), 0, nameW);
 486
 487     size = 0;
 488     ret = pGetComputerNameExW(ComputerNameNetBIOS, (LPWSTR)0xdeadbeef, &size);
 489     error = GetLastError();
 490     ok(!ret && error == ERROR_MORE_DATA, "GetComputerNameExW should have failed with ERROR_MORE_DATA instead of %d\n", error);
 491     nameW = HeapAlloc(GetProcessHeap(), 0, size * sizeof(nameW[0]));
 492     ok(nameW != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 493     ret = pGetComputerNameExW(ComputerNameNetBIOS, nameW, &size);
 494     ok(ret, "GetComputerNameExW(ComputerNameNetBIOS) failed with error %d\n", GetLastError());
 495     HeapFree(GetProcessHeap(), 0, nameW);
 496 }
 497
 498 START_TEST(environ)
 499 {
 500     init_functionpointers();
 501
 502     test_GetSetEnvironmentVariableA();
 503     test_GetSetEnvironmentVariableW();
 504     test_ExpandEnvironmentStringsA();
 505     test_GetComputerName();
 506     test_GetComputerNameExA();
 507     test_GetComputerNameExW();
 508 }