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     ret_size = GetEnvironmentVariableW(NULL, buf, lstrlenW(value) + 1);
 205     ok(ret_size == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND,
 206        "should not find variable but ret_size=%d GetLastError=%d\n",
 207        ret_size, GetLastError());
 208
 209     ret = SetEnvironmentVariableW(NULL, NULL);
 210     ok(ret == FALSE && (GetLastError() == ERROR_INVALID_PARAMETER || GetLastError() == ERROR_ENVVAR_NOT_FOUND),
 211        "should fail with NULL, NULL but ret=%d and GetLastError=%d\n",
 212        ret, GetLastError());
 213 }
 214
 215 static void test_ExpandEnvironmentStringsA(void)
 216 {
 217     char buf[256], buf1[256], buf2[0x8000];
 218     DWORD ret_size, ret_size1;
 219
 220     /* test a large destination size */
 221     strcpy(buf, "12345");
 222     ret_size = ExpandEnvironmentStringsA(buf, buf2, sizeof(buf2));
 223     ok(!strcmp(buf, buf2), "ExpandEnvironmentStrings failed %s vs %s. ret_size = %d\n", buf, buf2, ret_size);
 224
 225     ret_size1 = GetWindowsDirectoryA(buf1,256);
 226     ok ((ret_size1 >0) && (ret_size1<256), "GetWindowsDirectory Failed\n");
 227     ret_size = ExpandEnvironmentStringsA("%SystemRoot%",buf,sizeof(buf));
 228     if (ERROR_ENVVAR_NOT_FOUND == GetLastError())
 229         return;
 230     ok(!strcmp(buf, buf1), "ExpandEnvironmentStrings failed %s vs %s. ret_size = %d\n", buf, buf1, ret_size);
 231 }
 232
 233 static BOOL (WINAPI *pGetComputerNameExA)(COMPUTER_NAME_FORMAT,LPSTR,LPDWORD);
 234 static BOOL (WINAPI *pGetComputerNameExW)(COMPUTER_NAME_FORMAT,LPWSTR,LPDWORD);
 235
 236 static void test_GetComputerName(void)
 237 {
 238     DWORD size;
 239     BOOL ret;
 240     LPSTR name;
 241     LPWSTR nameW;
 242     DWORD error;
 243     int name_len;
 244
 245     size = 0;
 246     ret = GetComputerNameA((LPSTR)0xdeadbeef, &size);
 247     error = GetLastError();
 248     todo_wine
 249     ok(!ret && error == ERROR_BUFFER_OVERFLOW, "GetComputerNameA should have failed with ERROR_BUFFER_OVERFLOW instead of %d\n", error);
 250     size++; /* nul terminating character */
 251     name = HeapAlloc(GetProcessHeap(), 0, size * sizeof(name[0]));
 252     ok(name != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 253     ret = GetComputerNameA(name, &size);
 254     ok(ret, "GetComputerNameA failed with error %d\n", GetLastError());
 255     HeapFree(GetProcessHeap(), 0, name);
 256
 257     size = MAX_COMPUTERNAME_LENGTH + 1;
 258     name = HeapAlloc(GetProcessHeap(), 0, size * sizeof(name[0]));
 259     ok(name != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 260     ret = GetComputerNameA(name, &size);
 261     ok(ret, "GetComputerNameA failed with error %d\n", GetLastError());
 262     trace("computer name is \"%s\"\n", name);
 263     name_len = strlen(name);
 264     ok(size == name_len, "size should be same as length, name_len=%d, size=%d\n", name_len, size);
 265     HeapFree(GetProcessHeap(), 0, name);
 266
 267     size = 0;
 268     SetLastError(0xdeadbeef);
 269     ret = GetComputerNameW((LPWSTR)0xdeadbeef, &size);
 270     error = GetLastError();
 271     if (error == ERROR_CALL_NOT_IMPLEMENTED)
 272         skip("GetComputerNameW is not implemented\n");
 273     else
 274     {
 275         todo_wine
 276         ok(!ret && error == ERROR_BUFFER_OVERFLOW, "GetComputerNameW should have failed with ERROR_BUFFER_OVERFLOW instead of %d\n", error);
 277         size++; /* nul terminating character */
 278         nameW = HeapAlloc(GetProcessHeap(), 0, size * sizeof(nameW[0]));
 279         ok(nameW != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 280         ret = GetComputerNameW(nameW, &size);
 281         ok(ret, "GetComputerNameW failed with error %d\n", GetLastError());
 282         HeapFree(GetProcessHeap(), 0, nameW);
 283     }
 284
 285     pGetComputerNameExA = (void *)GetProcAddress(GetModuleHandle("kernel32.dll"), "GetComputerNameExA");
 286     if (!pGetComputerNameExA)
 287     {
 288         skip("GetComputerNameExA function not implemented, so not testing\n");
 289         return;
 290     }
 291
 292     size = 0;
 293     ret = pGetComputerNameExA(ComputerNameDnsDomain, (LPSTR)0xdeadbeef, &size);
 294     error = GetLastError();
 295     ok(!ret && error == ERROR_MORE_DATA, "GetComputerNameExA should have failed with ERROR_MORE_DATA instead of %d\n", error);
 296     name = HeapAlloc(GetProcessHeap(), 0, size * sizeof(name[0]));
 297     ok(name != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 298     ret = pGetComputerNameExA(ComputerNameDnsDomain, name, &size);
 299     ok(ret, "GetComputerNameExA(ComputerNameDnsDomain) failed with error %d\n", GetLastError());
 300     trace("domain name is \"%s\"\n", name);
 301     HeapFree(GetProcessHeap(), 0, name);
 302
 303     size = 0;
 304     ret = pGetComputerNameExA(ComputerNameDnsFullyQualified, (LPSTR)0xdeadbeef, &size);
 305     error = GetLastError();
 306     ok(!ret && error == ERROR_MORE_DATA, "GetComputerNameExA should have failed with ERROR_MORE_DATA instead of %d\n", error);
 307     name = HeapAlloc(GetProcessHeap(), 0, size * sizeof(name[0]));
 308     ok(name != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 309     ret = pGetComputerNameExA(ComputerNameDnsFullyQualified, name, &size);
 310     ok(ret, "GetComputerNameExA(ComputerNameDnsFullyQualified) failed with error %d\n", GetLastError());
 311     trace("fully qualified hostname is \"%s\"\n", name);
 312     HeapFree(GetProcessHeap(), 0, name);
 313
 314     size = 0;
 315     ret = pGetComputerNameExA(ComputerNameDnsHostname, (LPSTR)0xdeadbeef, &size);
 316     error = GetLastError();
 317     ok(!ret && error == ERROR_MORE_DATA, "GetComputerNameExA should have failed with ERROR_MORE_DATA instead of %d\n", error);
 318     name = HeapAlloc(GetProcessHeap(), 0, size * sizeof(name[0]));
 319     ok(name != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 320     ret = pGetComputerNameExA(ComputerNameDnsHostname, name, &size);
 321     ok(ret, "GetComputerNameExA(ComputerNameDnsHostname) failed with error %d\n", GetLastError());
 322     trace("hostname is \"%s\"\n", name);
 323     HeapFree(GetProcessHeap(), 0, name);
 324
 325     size = 0;
 326     ret = pGetComputerNameExA(ComputerNameNetBIOS, (LPSTR)0xdeadbeef, &size);
 327     error = GetLastError();
 328     ok(!ret && error == ERROR_MORE_DATA, "GetComputerNameExA should have failed with ERROR_MORE_DATA instead of %d\n", error);
 329     name = HeapAlloc(GetProcessHeap(), 0, size * sizeof(name[0]));
 330     ok(name != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 331     ret = pGetComputerNameExA(ComputerNameNetBIOS, name, &size);
 332     ok(ret, "GetComputerNameExA(ComputerNameNetBIOS) failed with error %d\n", GetLastError());
 333     trace("NetBIOS name is \"%s\"\n", name);
 334     HeapFree(GetProcessHeap(), 0, name);
 335
 336     pGetComputerNameExW = (void *)GetProcAddress(GetModuleHandle("kernel32.dll"), "GetComputerNameExW");
 337     if (!pGetComputerNameExW)
 338     {
 339         skip("GetComputerNameExW function not implemented, so not testing\n");
 340         return;
 341     }
 342
 343     size = 0;
 344     ret = pGetComputerNameExW(ComputerNameDnsDomain, (LPWSTR)0xdeadbeef, &size);
 345     error = GetLastError();
 346     ok(!ret && error == ERROR_MORE_DATA, "GetComputerNameExW should have failed with ERROR_MORE_DATA instead of %d\n", error);
 347     nameW = HeapAlloc(GetProcessHeap(), 0, size * sizeof(nameW[0]));
 348     ok(nameW != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 349     ret = pGetComputerNameExW(ComputerNameDnsDomain, nameW, &size);
 350     ok(ret, "GetComputerNameExW(ComputerNameDnsDomain) failed with error %d\n", GetLastError());
 351     HeapFree(GetProcessHeap(), 0, nameW);
 352
 353     size = 0;
 354     ret = pGetComputerNameExW(ComputerNameDnsFullyQualified, (LPWSTR)0xdeadbeef, &size);
 355     error = GetLastError();
 356     ok(!ret && error == ERROR_MORE_DATA, "GetComputerNameExW should have failed with ERROR_MORE_DATA instead of %d\n", error);
 357     nameW = HeapAlloc(GetProcessHeap(), 0, size * sizeof(nameW[0]));
 358     ok(nameW != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 359     ret = pGetComputerNameExW(ComputerNameDnsFullyQualified, nameW, &size);
 360     ok(ret, "GetComputerNameExW(ComputerNameDnsFullyQualified) failed with error %d\n", GetLastError());
 361     HeapFree(GetProcessHeap(), 0, nameW);
 362
 363     size = 0;
 364     ret = pGetComputerNameExW(ComputerNameDnsHostname, (LPWSTR)0xdeadbeef, &size);
 365     error = GetLastError();
 366     ok(!ret && error == ERROR_MORE_DATA, "GetComputerNameExW should have failed with ERROR_MORE_DATA instead of %d\n", error);
 367     nameW = HeapAlloc(GetProcessHeap(), 0, size * sizeof(nameW[0]));
 368     ok(nameW != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 369     ret = pGetComputerNameExW(ComputerNameDnsHostname, nameW, &size);
 370     ok(ret, "GetComputerNameExW(ComputerNameDnsHostname) failed with error %d\n", GetLastError());
 371     HeapFree(GetProcessHeap(), 0, nameW);
 372
 373     size = 0;
 374     ret = pGetComputerNameExW(ComputerNameNetBIOS, (LPWSTR)0xdeadbeef, &size);
 375     error = GetLastError();
 376     ok(!ret && error == ERROR_MORE_DATA, "GetComputerNameExW should have failed with ERROR_MORE_DATA instead of %d\n", error);
 377     nameW = HeapAlloc(GetProcessHeap(), 0, size * sizeof(nameW[0]));
 378     ok(nameW != NULL, "HeapAlloc failed with error %d\n", GetLastError());
 379     ret = pGetComputerNameExW(ComputerNameNetBIOS, nameW, &size);
 380     ok(ret, "GetComputerNameExW(ComputerNameNetBIOS) failed with error %d\n", GetLastError());
 381     HeapFree(GetProcessHeap(), 0, nameW);
 382 }
 383
 384 START_TEST(environ)
 385 {
 386     test_GetSetEnvironmentVariableA();
 387     test_GetSetEnvironmentVariableW();
 388     test_ExpandEnvironmentStringsA();
 389     test_GetComputerName();
 390 }