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
  28 static void test_GetSetEnvironmentVariableA(void)
  29 {
  30     char buf[256];
  31     BOOL ret;
  32     DWORD ret_size;
  33     static const char name[] = "SomeWildName";
  34     static const char name_cased[] = "sOMEwILDnAME";
  35     static const char value[] = "SomeWildValue";
  36
  37     ret = SetEnvironmentVariableA(name, value);
  38     ok(ret == TRUE,
  39        "unexpected error in SetEnvironmentVariableA, GetLastError=%d\n",
  40        GetLastError());
  41
  42     /* Try to retrieve the environment variable we just set */
  43     ret_size = GetEnvironmentVariableA(name, NULL, 0);
  44     ok(ret_size == strlen(value) + 1,
  45        "should return length with terminating 0 ret_size=%d\n", ret_size);
  46
  47     lstrcpyA(buf, "foo");
  48     ret_size = GetEnvironmentVariableA(name, buf, lstrlenA(value));
  49     ok(lstrcmpA(buf, "foo") == 0, "should not touch the buffer\n");
  50     ok(ret_size == strlen(value) + 1,
  51        "should return length with terminating 0 ret_size=%d\n", ret_size);
  52
  53     lstrcpyA(buf, "foo");
  54     ret_size = GetEnvironmentVariableA(name, buf, lstrlenA(value) + 1);
  55     ok(lstrcmpA(buf, value) == 0, "should touch the buffer\n");
  56     ok(ret_size == strlen(value),
  57        "should return length without terminating 0 ret_size=%d\n", ret_size);
  58
  59     lstrcpyA(buf, "foo");
  60     ret_size = GetEnvironmentVariableA(name_cased, buf, lstrlenA(value) + 1);
  61     ok(lstrcmpA(buf, value) == 0, "should touch the buffer\n");
  62     ok(ret_size == strlen(value),
  63        "should return length without terminating 0 ret_size=%d\n", ret_size);
  64
  65     /* Remove that environment variable */
  66     ret = SetEnvironmentVariableA(name_cased, NULL);
  67     ok(ret == TRUE, "should erase existing variable\n");
  68
  69     lstrcpyA(buf, "foo");
  70     ret_size = GetEnvironmentVariableA(name, buf, lstrlenA(value) + 1);
  71     ok(lstrcmpA(buf, "foo") == 0, "should not touch the buffer\n");
  72     ok(ret_size == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND,
  73        "should not find variable but ret_size=%d GetLastError=%d\n",
  74        ret_size, GetLastError());
  75
  76     /* Check behavior of SetEnvironmentVariableA(name, "") */
  77     ret = SetEnvironmentVariableA(name, value);
  78     ok(ret == TRUE,
  79        "unexpected error in SetEnvironmentVariableA, GetLastError=%d\n",
  80        GetLastError());
  81
  82     lstrcpyA(buf, "foo");
  83     ret_size = GetEnvironmentVariableA(name_cased, buf, lstrlenA(value) + 1);
  84     ok(lstrcmpA(buf, value) == 0, "should touch the buffer\n");
  85     ok(ret_size == strlen(value),
  86        "should return length without terminating 0 ret_size=%d\n", ret_size);
  87
  88     ret = SetEnvironmentVariableA(name_cased, "");
  89     ok(ret == TRUE,
  90        "should not fail with empty value but GetLastError=%d\n", GetLastError());
  91
  92     lstrcpyA(buf, "foo");
  93     SetLastError(0);
  94     ret_size = GetEnvironmentVariableA(name, buf, lstrlenA(value) + 1);
  95     ok(ret_size == 0 &&
  96        ((GetLastError() == 0 && lstrcmpA(buf, "") == 0) ||
  97         (GetLastError() == ERROR_ENVVAR_NOT_FOUND)),
  98        "%s should be set to \"\" (NT) or removed (Win9x) but ret_size=%d GetLastError=%d and buf=%s\n",
  99        name, ret_size, GetLastError(), buf);
 100
 101     /* Test the limits */
 102     ret_size = GetEnvironmentVariableA(NULL, NULL, 0);
 103     ok(ret_size == 0 && (GetLastError() == ERROR_INVALID_PARAMETER || GetLastError() == ERROR_ENVVAR_NOT_FOUND),
 104        "should not find variable but ret_size=%d GetLastError=%d\n",
 105        ret_size, GetLastError());
 106
 107     ret_size = GetEnvironmentVariableA(NULL, buf, lstrlenA(value) + 1);
 108     ok(ret_size == 0 && (GetLastError() == ERROR_INVALID_PARAMETER || GetLastError() == ERROR_ENVVAR_NOT_FOUND),
 109        "should not find variable but ret_size=%d GetLastError=%d\n",
 110        ret_size, GetLastError());
 111
 112     ret_size = GetEnvironmentVariableA("", buf, lstrlenA(value) + 1);
 113     ok(ret_size == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND,
 114        "should not find variable but ret_size=%d GetLastError=%d\n",
 115        ret_size, GetLastError());
 116 }
 117
 118 static void test_GetSetEnvironmentVariableW(void)
 119 {
 120     WCHAR buf[256];
 121     BOOL ret;
 122     DWORD ret_size;
 123     static const WCHAR name[] = {'S','o','m','e','W','i','l','d','N','a','m','e',0};
 124     static const WCHAR value[] = {'S','o','m','e','W','i','l','d','V','a','l','u','e',0};
 125     static const WCHAR name_cased[] = {'s','O','M','E','w','I','L','D','n','A','M','E',0};
 126     static const WCHAR empty_strW[] = { 0 };
 127     static const WCHAR fooW[] = {'f','o','o',0};
 128
 129     ret = SetEnvironmentVariableW(name, value);
 130     if (ret == FALSE && GetLastError()==ERROR_CALL_NOT_IMPLEMENTED)
 131     {
 132         /* Must be Win9x which doesn't support the Unicode functions */
 133         skip("SetEnvironmentVariableW is not implemented\n");
 134         return;
 135     }
 136     ok(ret == TRUE,
 137        "unexpected error in SetEnvironmentVariableW, GetLastError=%d\n",
 138        GetLastError());
 139
 140     /* Try to retrieve the environment variable we just set */
 141     ret_size = GetEnvironmentVariableW(name, NULL, 0);
 142     ok(ret_size == lstrlenW(value) + 1,
 143        "should return length with terminating 0 ret_size=%d\n",
 144        ret_size);
 145
 146     lstrcpyW(buf, fooW);
 147     ret_size = GetEnvironmentVariableW(name, buf, lstrlenW(value));
 148     ok(lstrcmpW(buf, fooW) == 0, "should not touch the buffer\n");
 149
 150     ok(ret_size == lstrlenW(value) + 1,
 151        "should return length with terminating 0 ret_size=%d\n", ret_size);
 152
 153     lstrcpyW(buf, fooW);
 154     ret_size = GetEnvironmentVariableW(name, buf, lstrlenW(value) + 1);
 155     ok(lstrcmpW(buf, value) == 0, "should touch the buffer\n");
 156     ok(ret_size == lstrlenW(value),
 157        "should return length without terminating 0 ret_size=%d\n", ret_size);
 158
 159     lstrcpyW(buf, fooW);
 160     ret_size = GetEnvironmentVariableW(name_cased, buf, lstrlenW(value) + 1);
 161     ok(lstrcmpW(buf, value) == 0, "should touch the buffer\n");
 162     ok(ret_size == lstrlenW(value),
 163        "should return length without terminating 0 ret_size=%d\n", ret_size);
 164
 165     /* Remove that environment variable */
 166     ret = SetEnvironmentVariableW(name_cased, NULL);
 167     ok(ret == TRUE, "should erase existing variable\n");
 168
 169     lstrcpyW(buf, fooW);
 170     ret_size = GetEnvironmentVariableW(name, buf, lstrlenW(value) + 1);
 171     ok(lstrcmpW(buf, fooW) == 0, "should not touch the buffer\n");
 172     ok(ret_size == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND,
 173        "should not find variable but ret_size=%d GetLastError=%d\n",
 174        ret_size, GetLastError());
 175
 176     /* Check behavior of SetEnvironmentVariableW(name, "") */
 177     ret = SetEnvironmentVariableW(name, value);
 178     ok(ret == TRUE,
 179        "unexpected error in SetEnvironmentVariableW, GetLastError=%d\n",
 180        GetLastError());
 181
 182     lstrcpyW(buf, fooW);
 183     ret_size = GetEnvironmentVariableW(name, buf, lstrlenW(value) + 1);
 184     ok(lstrcmpW(buf, value) == 0, "should touch the buffer\n");
 185     ok(ret_size == lstrlenW(value),
 186        "should return length without terminating 0 ret_size=%d\n", ret_size);
 187
 188     ret = SetEnvironmentVariableW(name_cased, empty_strW);
 189     ok(ret == TRUE, "should not fail with empty value but GetLastError=%d\n", GetLastError());
 190
 191     lstrcpyW(buf, fooW);
 192     ret_size = GetEnvironmentVariableW(name, buf, lstrlenW(value) + 1);
 193     ok(ret_size == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND,
 194        "should not find variable but ret_size=%d GetLastError=%d\n",
 195        ret_size, GetLastError());
 196     ok(lstrcmpW(buf, empty_strW) == 0, "should copy an empty string\n");
 197
 198     /* Test the limits */
 199     ret_size = GetEnvironmentVariableW(NULL, NULL, 0);
 200     ok(ret_size == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND,
 201        "should not find variable but ret_size=%d GetLastError=%d\n",
 202        ret_size, GetLastError());
 203
 204     if (0) /* Both tests crash on Vista */
 205     {
 206         ret_size = GetEnvironmentVariableW(NULL, buf, lstrlenW(value) + 1);
 207         ok(ret_size == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND,
 208            "should not find variable but ret_size=%d GetLastError=%d\n",
 209            ret_size, GetLastError());
 210
 211         ret = SetEnvironmentVariableW(NULL, NULL);
 212         ok(ret == FALSE && (GetLastError() == ERROR_INVALID_PARAMETER || GetLastError() == ERROR_ENVVAR_NOT_FOUND),
 213            "should fail with NULL, NULL but ret=%d and GetLastError=%d\n",
 214            ret, GetLastError());
 215     }
 216 }
 217
 218 static void test_ExpandEnvironmentStringsA(void)
 219 {
 220     char buf[256], buf1[256], buf2[0x8000];
 221     DWORD ret_size, ret_size1;
 222
 223     /* test a large destination size */
 224     strcpy(buf, "12345");
 225     ret_size = ExpandEnvironmentStringsA(buf, buf2, sizeof(buf2));
 226     ok(!strcmp(buf, buf2), "ExpandEnvironmentStrings failed %s vs %s. ret_size = %d\n", buf, buf2, ret_size);
 227
 228     ret_size1 = GetWindowsDirectoryA(buf1,256);
 229     ok ((ret_size1 >0) && (ret_size1<256), "GetWindowsDirectory Failed\n");
 230     ret_size = ExpandEnvironmentStringsA("%SystemRoot%",buf,sizeof(buf));
 231     if (ERROR_ENVVAR_NOT_FOUND == GetLastError())
 232         return;
 233     ok(!strcmp(buf, buf1), "ExpandEnvironmentStrings failed %s vs %s. ret_size = %d\n", buf, buf1, ret_size);
 234 }
 235
 236 static BOOL (WINAPI *pGetComputerNameExA)(COMPUTER_NAME_FORMAT,LPSTR,LPDWORD);
 237 static BOOL (WINAPI *pGetComputerNameExW)(COMPUTER_NAME_FORMAT,LPWSTR,LPDWORD);
 238
 239 static void test_GetComputerName(void)
 240 {
 241     DWORD size;
 242     BOOL ret;
 243     LPSTR name;
 244     LPWSTR nameW;
 245     DWORD error;
 246     int name_len;
 247
 248     size = 0;
 249     ret = GetComputerNameA((LPSTR)0xdeadbeef, &size);
 250     error = GetLastError();
 251     todo_wine
 252     ok(!ret && error == ERROR_BUFFER_OVERFLOW, "GetComputerNameA should have failed with ERROR_BUFFER_OVERFLOW instead of %d\n", error);
 253     size++; /* nul terminating character */
 254     name = HeapAlloc(GetProcessHeap(), 0, size * sizeof(name[0]));
 255     ok(name != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 256     ret = GetComputerNameA(name, &size);
 257     ok(ret, "GetComputerNameA failed with error %d\n", GetLastError());
 258     HeapFree(GetProcessHeap(), 0, name);
 259
 260     size = MAX_COMPUTERNAME_LENGTH + 1;
 261     name = HeapAlloc(GetProcessHeap(), 0, size * sizeof(name[0]));
 262     ok(name != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 263     ret = GetComputerNameA(name, &size);
 264     ok(ret, "GetComputerNameA failed with error %d\n", GetLastError());
 265     trace("computer name is \"%s\"\n", name);
 266     name_len = strlen(name);
 267     ok(size == name_len, "size should be same as length, name_len=%d, size=%d\n", name_len, size);
 268     HeapFree(GetProcessHeap(), 0, name);
 269
 270     size = 0;
 271     SetLastError(0xdeadbeef);
 272     ret = GetComputerNameW((LPWSTR)0xdeadbeef, &size);
 273     error = GetLastError();
 274     if (error == ERROR_CALL_NOT_IMPLEMENTED)
 275         skip("GetComputerNameW is not implemented\n");
 276     else
 277     {
 278         todo_wine
 279         ok(!ret && error == ERROR_BUFFER_OVERFLOW, "GetComputerNameW should have failed with ERROR_BUFFER_OVERFLOW instead of %d\n", error);
 280         size++; /* nul terminating character */
 281         nameW = HeapAlloc(GetProcessHeap(), 0, size * sizeof(nameW[0]));
 282         ok(nameW != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 283         ret = GetComputerNameW(nameW, &size);
 284         ok(ret, "GetComputerNameW failed with error %d\n", GetLastError());
 285         HeapFree(GetProcessHeap(), 0, nameW);
 286     }
 287
 288     pGetComputerNameExA = (void *)GetProcAddress(GetModuleHandle("kernel32.dll"), "GetComputerNameExA");
 289     if (!pGetComputerNameExA)
 290     {
 291         skip("GetComputerNameExA function not implemented, so not testing\n");
 292         return;
 293     }
 294
 295     size = 0;
 296     ret = pGetComputerNameExA(ComputerNameDnsDomain, (LPSTR)0xdeadbeef, &size);
 297     error = GetLastError();
 298     ok(!ret && error == ERROR_MORE_DATA, "GetComputerNameExA should have failed with ERROR_MORE_DATA instead of %d\n", error);
 299     name = HeapAlloc(GetProcessHeap(), 0, size * sizeof(name[0]));
 300     ok(name != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 301     ret = pGetComputerNameExA(ComputerNameDnsDomain, name, &size);
 302     ok(ret, "GetComputerNameExA(ComputerNameDnsDomain) failed with error %d\n", GetLastError());
 303     trace("domain name is \"%s\"\n", name);
 304     HeapFree(GetProcessHeap(), 0, name);
 305
 306     size = 0;
 307     ret = pGetComputerNameExA(ComputerNameDnsFullyQualified, (LPSTR)0xdeadbeef, &size);
 308     error = GetLastError();
 309     ok(!ret && error == ERROR_MORE_DATA, "GetComputerNameExA should have failed with ERROR_MORE_DATA instead of %d\n", error);
 310     name = HeapAlloc(GetProcessHeap(), 0, size * sizeof(name[0]));
 311     ok(name != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 312     ret = pGetComputerNameExA(ComputerNameDnsFullyQualified, name, &size);
 313     ok(ret, "GetComputerNameExA(ComputerNameDnsFullyQualified) failed with error %d\n", GetLastError());
 314     trace("fully qualified hostname is \"%s\"\n", name);
 315     HeapFree(GetProcessHeap(), 0, name);
 316
 317     size = 0;
 318     ret = pGetComputerNameExA(ComputerNameDnsHostname, (LPSTR)0xdeadbeef, &size);
 319     error = GetLastError();
 320     ok(!ret && error == ERROR_MORE_DATA, "GetComputerNameExA should have failed with ERROR_MORE_DATA instead of %d\n", error);
 321     name = HeapAlloc(GetProcessHeap(), 0, size * sizeof(name[0]));
 322     ok(name != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 323     ret = pGetComputerNameExA(ComputerNameDnsHostname, name, &size);
 324     ok(ret, "GetComputerNameExA(ComputerNameDnsHostname) failed with error %d\n", GetLastError());
 325     trace("hostname is \"%s\"\n", name);
 326     HeapFree(GetProcessHeap(), 0, name);
 327
 328     size = 0;
 329     ret = pGetComputerNameExA(ComputerNameNetBIOS, (LPSTR)0xdeadbeef, &size);
 330     error = GetLastError();
 331     ok(!ret && error == ERROR_MORE_DATA, "GetComputerNameExA should have failed with ERROR_MORE_DATA instead of %d\n", error);
 332     name = HeapAlloc(GetProcessHeap(), 0, size * sizeof(name[0]));
 333     ok(name != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 334     ret = pGetComputerNameExA(ComputerNameNetBIOS, name, &size);
 335     ok(ret, "GetComputerNameExA(ComputerNameNetBIOS) failed with error %d\n", GetLastError());
 336     trace("NetBIOS name is \"%s\"\n", name);
 337     HeapFree(GetProcessHeap(), 0, name);
 338
 339     pGetComputerNameExW = (void *)GetProcAddress(GetModuleHandle("kernel32.dll"), "GetComputerNameExW");
 340     if (!pGetComputerNameExW)
 341     {
 342         skip("GetComputerNameExW function not implemented, so not testing\n");
 343         return;
 344     }
 345
 346     size = 0;
 347     ret = pGetComputerNameExW(ComputerNameDnsDomain, (LPWSTR)0xdeadbeef, &size);
 348     error = GetLastError();
 349     ok(!ret && error == ERROR_MORE_DATA, "GetComputerNameExW should have failed with ERROR_MORE_DATA instead of %d\n", error);
 350     nameW = HeapAlloc(GetProcessHeap(), 0, size * sizeof(nameW[0]));
 351     ok(nameW != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 352     ret = pGetComputerNameExW(ComputerNameDnsDomain, nameW, &size);
 353     ok(ret, "GetComputerNameExW(ComputerNameDnsDomain) failed with error %d\n", GetLastError());
 354     HeapFree(GetProcessHeap(), 0, nameW);
 355
 356     size = 0;
 357     ret = pGetComputerNameExW(ComputerNameDnsFullyQualified, (LPWSTR)0xdeadbeef, &size);
 358     error = GetLastError();
 359     ok(!ret && error == ERROR_MORE_DATA, "GetComputerNameExW should have failed with ERROR_MORE_DATA instead of %d\n", error);
 360     nameW = HeapAlloc(GetProcessHeap(), 0, size * sizeof(nameW[0]));
 361     ok(nameW != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 362     ret = pGetComputerNameExW(ComputerNameDnsFullyQualified, nameW, &size);
 363     ok(ret, "GetComputerNameExW(ComputerNameDnsFullyQualified) failed with error %d\n", GetLastError());
 364     HeapFree(GetProcessHeap(), 0, nameW);
 365
 366     size = 0;
 367     ret = pGetComputerNameExW(ComputerNameDnsHostname, (LPWSTR)0xdeadbeef, &size);
 368     error = GetLastError();
 369     ok(!ret && error == ERROR_MORE_DATA, "GetComputerNameExW should have failed with ERROR_MORE_DATA instead of %d\n", error);
 370     nameW = HeapAlloc(GetProcessHeap(), 0, size * sizeof(nameW[0]));
 371     ok(nameW != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 372     ret = pGetComputerNameExW(ComputerNameDnsHostname, nameW, &size);
 373     ok(ret, "GetComputerNameExW(ComputerNameDnsHostname) failed with error %d\n", GetLastError());
 374     HeapFree(GetProcessHeap(), 0, nameW);
 375
 376     size = 0;
 377     ret = pGetComputerNameExW(ComputerNameNetBIOS, (LPWSTR)0xdeadbeef, &size);
 378     error = GetLastError();
 379     ok(!ret && error == ERROR_MORE_DATA, "GetComputerNameExW should have failed with ERROR_MORE_DATA instead of %d\n", error);
 380     nameW = HeapAlloc(GetProcessHeap(), 0, size * sizeof(nameW[0]));
 381     ok(nameW != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 382     ret = pGetComputerNameExW(ComputerNameNetBIOS, nameW, &size);
 383     ok(ret, "GetComputerNameExW(ComputerNameNetBIOS) failed with error %d\n", GetLastError());
 384     HeapFree(GetProcessHeap(), 0, nameW);
 385 }
 386
 387 START_TEST(environ)
 388 {
 389     test_GetSetEnvironmentVariableA();
 390     test_GetSetEnvironmentVariableW();
 391     test_ExpandEnvironmentStringsA();
 392     test_GetComputerName();
 393 }