dlls/iphlpapi/tests/iphlpapi.c

   1 /*
   2  * iphlpapi dll test
   3  *
   4  * Copyright (C) 2003 Juan Lang
   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 /*
  22  * Some observations that an automated test can't produce:
  23  * An adapter index is a key for an adapter.  That is, if an index is returned
  24  * from one API, that same index may be used successfully in another API, as
  25  * long as the adapter remains present.
  26  * If the adapter is removed and reinserted, however, the index may change (and
  27  * indeed it does change on Win2K).
  28  *
  29  * The Name field of the IP_ADAPTER_INDEX_MAP entries returned by
  30  * GetInterfaceInfo is declared as a wide string, but the bytes are actually
  31  * an ASCII string on some versions of the IP helper API under Win9x.  This was
  32  * apparently an MS bug, it's corrected in later versions.
  33  *
  34  * The DomainName field of FIXED_INFO isn't NULL-terminated on Win98.
  35  */
  36
  37 #include <stdarg.h>
  38 #include "windef.h"
  39 #include "winbase.h"
  40 #include "iphlpapi.h"
  41 #include "iprtrmib.h"
  42 #include "wine/test.h"
  43 #include <stdio.h>
  44 #include <stdlib.h>
  45
  46 static HMODULE hLibrary = NULL;
  47
  48 typedef DWORD (WINAPI *GetNumberOfInterfacesFunc)(PDWORD);
  49 typedef DWORD (WINAPI *GetIpAddrTableFunc)(PMIB_IPADDRTABLE,PULONG,BOOL);
  50 typedef DWORD (WINAPI *GetIfEntryFunc)(PMIB_IFROW);
  51 typedef DWORD (WINAPI *GetFriendlyIfIndexFunc)(DWORD);
  52 typedef DWORD (WINAPI *GetIfTableFunc)(PMIB_IFTABLE,PULONG,BOOL);
  53 typedef DWORD (WINAPI *GetIpForwardTableFunc)(PMIB_IPFORWARDTABLE,PULONG,BOOL);
  54 typedef DWORD (WINAPI *GetIpNetTableFunc)(PMIB_IPNETTABLE,PULONG,BOOL);
  55 typedef DWORD (WINAPI *GetInterfaceInfoFunc)(PIP_INTERFACE_INFO,PULONG);
  56 typedef DWORD (WINAPI *GetAdaptersInfoFunc)(PIP_ADAPTER_INFO,PULONG);
  57 typedef DWORD (WINAPI *GetNetworkParamsFunc)(PFIXED_INFO,PULONG);
  58 typedef DWORD (WINAPI *GetIcmpStatisticsFunc)(PMIB_ICMP);
  59 typedef DWORD (WINAPI *GetIpStatisticsFunc)(PMIB_IPSTATS);
  60 typedef DWORD (WINAPI *GetTcpStatisticsFunc)(PMIB_TCPSTATS);
  61 typedef DWORD (WINAPI *GetUdpStatisticsFunc)(PMIB_UDPSTATS);
  62 typedef DWORD (WINAPI *GetTcpTableFunc)(PMIB_TCPTABLE,PDWORD,BOOL);
  63 typedef DWORD (WINAPI *GetUdpTableFunc)(PMIB_UDPTABLE,PDWORD,BOOL);
  64 typedef DWORD (WINAPI *GetPerAdapterInfoFunc)(ULONG,PIP_PER_ADAPTER_INFO,PULONG);
  65
  66 static GetNumberOfInterfacesFunc gGetNumberOfInterfaces = NULL;
  67 static GetIpAddrTableFunc gGetIpAddrTable = NULL;
  68 static GetIfEntryFunc gGetIfEntry = NULL;
  69 static GetFriendlyIfIndexFunc gGetFriendlyIfIndex = NULL;
  70 static GetIfTableFunc gGetIfTable = NULL;
  71 static GetIpForwardTableFunc gGetIpForwardTable = NULL;
  72 static GetIpNetTableFunc gGetIpNetTable = NULL;
  73 static GetInterfaceInfoFunc gGetInterfaceInfo = NULL;
  74 static GetAdaptersInfoFunc gGetAdaptersInfo = NULL;
  75 static GetNetworkParamsFunc gGetNetworkParams = NULL;
  76 static GetIcmpStatisticsFunc gGetIcmpStatistics = NULL;
  77 static GetIpStatisticsFunc gGetIpStatistics = NULL;
  78 static GetTcpStatisticsFunc gGetTcpStatistics = NULL;
  79 static GetUdpStatisticsFunc gGetUdpStatistics = NULL;
  80 static GetTcpTableFunc gGetTcpTable = NULL;
  81 static GetUdpTableFunc gGetUdpTable = NULL;
  82 static GetPerAdapterInfoFunc gGetPerAdapterInfo = NULL;
  83
  84 static void loadIPHlpApi(void)
  85 {
  86   hLibrary = LoadLibraryA("iphlpapi.dll");
  87   if (hLibrary) {
  88     gGetNumberOfInterfaces = (GetNumberOfInterfacesFunc)GetProcAddress(
  89      hLibrary, "GetNumberOfInterfaces");
  90     gGetIpAddrTable = (GetIpAddrTableFunc)GetProcAddress(
  91      hLibrary, "GetIpAddrTable");
  92     gGetIfEntry = (GetIfEntryFunc)GetProcAddress(
  93      hLibrary, "GetIfEntry");
  94     gGetFriendlyIfIndex = (GetFriendlyIfIndexFunc)GetProcAddress(
  95      hLibrary, "GetFriendlyIfIndex");
  96     gGetIfTable = (GetIfTableFunc)GetProcAddress(
  97      hLibrary, "GetIfTable");
  98     gGetIpForwardTable = (GetIpForwardTableFunc)GetProcAddress(
  99      hLibrary, "GetIpForwardTable");
 100     gGetIpNetTable = (GetIpNetTableFunc)GetProcAddress(
 101      hLibrary, "GetIpNetTable");
 102     gGetInterfaceInfo = (GetInterfaceInfoFunc)GetProcAddress(
 103      hLibrary, "GetInterfaceInfo");
 104     gGetAdaptersInfo = (GetAdaptersInfoFunc)GetProcAddress(
 105      hLibrary, "GetAdaptersInfo");
 106     gGetNetworkParams = (GetNetworkParamsFunc)GetProcAddress(
 107      hLibrary, "GetNetworkParams");
 108     gGetIcmpStatistics = (GetIcmpStatisticsFunc)GetProcAddress(
 109      hLibrary, "GetIcmpStatistics");
 110     gGetIpStatistics = (GetIpStatisticsFunc)GetProcAddress(
 111      hLibrary, "GetIpStatistics");
 112     gGetTcpStatistics = (GetTcpStatisticsFunc)GetProcAddress(
 113      hLibrary, "GetTcpStatistics");
 114     gGetUdpStatistics = (GetUdpStatisticsFunc)GetProcAddress(
 115      hLibrary, "GetUdpStatistics");
 116     gGetTcpTable = (GetTcpTableFunc)GetProcAddress(
 117      hLibrary, "GetTcpTable");
 118     gGetUdpTable = (GetUdpTableFunc)GetProcAddress(
 119      hLibrary, "GetUdpTable");
 120     gGetPerAdapterInfo = (GetPerAdapterInfoFunc)GetProcAddress(hLibrary, "GetPerAdapterInfo");
 121   }
 122 }
 123
 124 static void freeIPHlpApi(void)
 125 {
 126   if (hLibrary) {
 127     gGetNumberOfInterfaces = NULL;
 128     gGetIpAddrTable = NULL;
 129     gGetIfEntry = NULL;
 130     gGetFriendlyIfIndex = NULL;
 131     gGetIfTable = NULL;
 132     gGetIpForwardTable = NULL;
 133     gGetIpNetTable = NULL;
 134     gGetInterfaceInfo = NULL;
 135     gGetAdaptersInfo = NULL;
 136     gGetNetworkParams = NULL;
 137     gGetIcmpStatistics = NULL;
 138     gGetIpStatistics = NULL;
 139     gGetTcpStatistics = NULL;
 140     gGetUdpStatistics = NULL;
 141     gGetTcpTable = NULL;
 142     gGetUdpTable = NULL;
 143     FreeLibrary(hLibrary);
 144     hLibrary = NULL;
 145   }
 146 }
 147
 148 /*
 149 still-to-be-tested 98-only functions:
 150 GetUniDirectionalAdapterInfo
 151 */
 152 static void testWin98OnlyFunctions(void)
 153 {
 154 }
 155
 156 static void testGetNumberOfInterfaces(void)
 157 {
 158   if (gGetNumberOfInterfaces) {
 159     DWORD apiReturn, numInterfaces;
 160
 161     /* Crashes on Vista */
 162     if (0) {
 163       apiReturn = gGetNumberOfInterfaces(NULL), numInterfaces;
 164       if (apiReturn == ERROR_NOT_SUPPORTED)
 165         return;
 166       ok(apiReturn == ERROR_INVALID_PARAMETER,
 167        "GetNumberOfInterfaces(NULL) returned %d, expected ERROR_INVALID_PARAMETER\n",
 168        apiReturn);
 169     }
 170
 171     apiReturn = gGetNumberOfInterfaces(&numInterfaces);
 172     if (apiReturn == ERROR_NOT_SUPPORTED) {
 173       skip("GetNumberOfInterfaces is not supported\n");
 174       return;
 175     }
 176     ok(apiReturn == NO_ERROR,
 177      "GetNumberOfInterfaces returned %d, expected 0\n", apiReturn);
 178   }
 179 }
 180
 181 static void testGetIfEntry(DWORD index)
 182 {
 183   if (gGetIfEntry) {
 184     DWORD apiReturn;
 185     MIB_IFROW row;
 186
 187     memset(&row, 0, sizeof(row));
 188     apiReturn = gGetIfEntry(NULL);
 189     if (apiReturn == ERROR_NOT_SUPPORTED) {
 190       skip("GetIfEntry is not supported\n");
 191       return;
 192     }
 193     ok(apiReturn == ERROR_INVALID_PARAMETER,
 194      "GetIfEntry(NULL) returned %d, expected ERROR_INVALID_PARAMETER\n",
 195      apiReturn);
 196     row.dwIndex = -1; /* hope that's always bogus! */
 197     apiReturn = gGetIfEntry(&row);
 198     ok(apiReturn == ERROR_INVALID_DATA ||
 199      apiReturn == ERROR_FILE_NOT_FOUND /* Vista */,
 200      "GetIfEntry(bogus row) returned %d, expected ERROR_INVALID_DATA or ERROR_FILE_NOT_FOUND\n",
 201      apiReturn);
 202     row.dwIndex = index;
 203     apiReturn = gGetIfEntry(&row);
 204     ok(apiReturn == NO_ERROR,
 205      "GetIfEntry returned %d, expected NO_ERROR\n", apiReturn);
 206   }
 207 }
 208
 209 static void testGetIpAddrTable(void)
 210 {
 211   if (gGetIpAddrTable) {
 212     DWORD apiReturn;
 213     ULONG dwSize = 0;
 214
 215     apiReturn = gGetIpAddrTable(NULL, NULL, FALSE);
 216     if (apiReturn == ERROR_NOT_SUPPORTED) {
 217       skip("GetIpAddrTable is not supported\n");
 218       return;
 219     }
 220     ok(apiReturn == ERROR_INVALID_PARAMETER,
 221      "GetIpAddrTable(NULL, NULL, FALSE) returned %d, expected ERROR_INVALID_PARAMETER\n",
 222      apiReturn);
 223     apiReturn = gGetIpAddrTable(NULL, &dwSize, FALSE);
 224     ok(apiReturn == ERROR_INSUFFICIENT_BUFFER,
 225      "GetIpAddrTable(NULL, &dwSize, FALSE) returned %d, expected ERROR_INSUFFICIENT_BUFFER\n",
 226      apiReturn);
 227     if (apiReturn == ERROR_INSUFFICIENT_BUFFER) {
 228       PMIB_IPADDRTABLE buf = HeapAlloc(GetProcessHeap(), 0, dwSize);
 229
 230       apiReturn = gGetIpAddrTable(buf, &dwSize, FALSE);
 231       ok(apiReturn == NO_ERROR,
 232        "GetIpAddrTable(buf, &dwSize, FALSE) returned %d, expected NO_ERROR\n",
 233        apiReturn);
 234       if (apiReturn == NO_ERROR && buf->dwNumEntries)
 235         testGetIfEntry(buf->table[0].dwIndex);
 236       HeapFree(GetProcessHeap(), 0, buf);
 237     }
 238   }
 239 }
 240
 241 static void testGetIfTable(void)
 242 {
 243   if (gGetIfTable) {
 244     DWORD apiReturn;
 245     ULONG dwSize = 0;
 246
 247     apiReturn = gGetIfTable(NULL, NULL, FALSE);
 248     if (apiReturn == ERROR_NOT_SUPPORTED) {
 249       skip("GetIfTable is not supported\n");
 250       return;
 251     }
 252     ok(apiReturn == ERROR_INVALID_PARAMETER,
 253      "GetIfTable(NULL, NULL, FALSE) returned %d, expected ERROR_INVALID_PARAMETER\n",
 254      apiReturn);
 255     apiReturn = gGetIfTable(NULL, &dwSize, FALSE);
 256     ok(apiReturn == ERROR_INSUFFICIENT_BUFFER,
 257      "GetIfTable(NULL, &dwSize, FALSE) returned %d, expected ERROR_INSUFFICIENT_BUFFER\n",
 258      apiReturn);
 259     if (apiReturn == ERROR_INSUFFICIENT_BUFFER) {
 260       PMIB_IFTABLE buf = HeapAlloc(GetProcessHeap(), 0, dwSize);
 261
 262       apiReturn = gGetIfTable(buf, &dwSize, FALSE);
 263       ok(apiReturn == NO_ERROR,
 264        "GetIfTable(buf, &dwSize, FALSE) returned %d, expected NO_ERROR\n\n",
 265        apiReturn);
 266       HeapFree(GetProcessHeap(), 0, buf);
 267     }
 268   }
 269 }
 270
 271 static void testGetIpForwardTable(void)
 272 {
 273   if (gGetIpForwardTable) {
 274     DWORD apiReturn;
 275     ULONG dwSize = 0;
 276
 277     apiReturn = gGetIpForwardTable(NULL, NULL, FALSE);
 278     if (apiReturn == ERROR_NOT_SUPPORTED) {
 279       skip("GetIpForwardTable is not supported\n");
 280       return;
 281     }
 282     ok(apiReturn == ERROR_INVALID_PARAMETER,
 283      "GetIpForwardTable(NULL, NULL, FALSE) returned %d, expected ERROR_INVALID_PARAMETER\n",
 284      apiReturn);
 285     apiReturn = gGetIpForwardTable(NULL, &dwSize, FALSE);
 286     ok(apiReturn == ERROR_INSUFFICIENT_BUFFER,
 287      "GetIpForwardTable(NULL, &dwSize, FALSE) returned %d, expected ERROR_INSUFFICIENT_BUFFER\n",
 288      apiReturn);
 289     if (apiReturn == ERROR_INSUFFICIENT_BUFFER) {
 290       PMIB_IPFORWARDTABLE buf = HeapAlloc(GetProcessHeap(), 0, dwSize);
 291
 292       apiReturn = gGetIpForwardTable(buf, &dwSize, FALSE);
 293       ok(apiReturn == NO_ERROR,
 294        "GetIpForwardTable(buf, &dwSize, FALSE) returned %d, expected NO_ERROR\n",
 295        apiReturn);
 296       HeapFree(GetProcessHeap(), 0, buf);
 297     }
 298   }
 299 }
 300
 301 static void testGetIpNetTable(void)
 302 {
 303   if (gGetIpNetTable) {
 304     DWORD apiReturn;
 305     ULONG dwSize = 0;
 306
 307     apiReturn = gGetIpNetTable(NULL, NULL, FALSE);
 308     if (apiReturn == ERROR_NOT_SUPPORTED) {
 309       skip("GetIpNetTable is not supported\n");
 310       return;
 311     }
 312     ok(apiReturn == ERROR_INVALID_PARAMETER,
 313      "GetIpNetTable(NULL, NULL, FALSE) returned %d, expected ERROR_INVALID_PARAMETER\n",
 314      apiReturn);
 315     apiReturn = gGetIpNetTable(NULL, &dwSize, FALSE);
 316     ok(apiReturn == ERROR_NO_DATA || apiReturn == ERROR_INSUFFICIENT_BUFFER,
 317      "GetIpNetTable(NULL, &dwSize, FALSE) returned %d, expected ERROR_NO_DATA or ERROR_INSUFFICIENT_BUFFER\n",
 318      apiReturn);
 319     if (apiReturn == ERROR_NO_DATA)
 320       ; /* empty ARP table's okay */
 321     else if (apiReturn == ERROR_INSUFFICIENT_BUFFER) {
 322       PMIB_IPNETTABLE buf = HeapAlloc(GetProcessHeap(), 0, dwSize);
 323
 324       apiReturn = gGetIpNetTable(buf, &dwSize, FALSE);
 325       ok(apiReturn == NO_ERROR ||
 326          apiReturn == ERROR_NO_DATA, /* empty ARP table's okay */
 327        "GetIpNetTable(buf, &dwSize, FALSE) returned %d, expected NO_ERROR\n",
 328        apiReturn);
 329       HeapFree(GetProcessHeap(), 0, buf);
 330     }
 331   }
 332 }
 333
 334 static void testGetIcmpStatistics(void)
 335 {
 336   if (gGetIcmpStatistics) {
 337     DWORD apiReturn;
 338     MIB_ICMP stats;
 339
 340     /* Crashes on Vista */
 341     if (0) {
 342       apiReturn = gGetIcmpStatistics(NULL);
 343       if (apiReturn == ERROR_NOT_SUPPORTED)
 344         return;
 345       ok(apiReturn == ERROR_INVALID_PARAMETER,
 346        "GetIcmpStatistics(NULL) returned %d, expected ERROR_INVALID_PARAMETER\n",
 347        apiReturn);
 348     }
 349
 350     apiReturn = gGetIcmpStatistics(&stats);
 351     if (apiReturn == ERROR_NOT_SUPPORTED)
 352     {
 353       skip("GetIcmpStatistics is not supported\n");
 354       return;
 355     }
 356     ok(apiReturn == NO_ERROR,
 357      "GetIcmpStatistics returned %d, expected NO_ERROR\n", apiReturn);
 358   }
 359 }
 360
 361 static void testGetIpStatistics(void)
 362 {
 363   if (gGetIpStatistics) {
 364     DWORD apiReturn;
 365     MIB_IPSTATS stats;
 366
 367     apiReturn = gGetIpStatistics(NULL);
 368     if (apiReturn == ERROR_NOT_SUPPORTED) {
 369       skip("GetIpStatistics is not supported\n");
 370       return;
 371     }
 372     ok(apiReturn == ERROR_INVALID_PARAMETER,
 373      "GetIpStatistics(NULL) returned %d, expected ERROR_INVALID_PARAMETER\n",
 374      apiReturn);
 375     apiReturn = gGetIpStatistics(&stats);
 376     ok(apiReturn == NO_ERROR,
 377       "GetIpStatistics returned %d, expected NO_ERROR\n", apiReturn);
 378   }
 379 }
 380
 381 static void testGetTcpStatistics(void)
 382 {
 383   if (gGetTcpStatistics) {
 384     DWORD apiReturn;
 385     MIB_TCPSTATS stats;
 386
 387     apiReturn = gGetTcpStatistics(NULL);
 388     if (apiReturn == ERROR_NOT_SUPPORTED) {
 389       skip("GetTcpStatistics is not supported\n");
 390       return;
 391     }
 392     ok(apiReturn == ERROR_INVALID_PARAMETER,
 393      "GetTcpStatistics(NULL) returned %d, expected ERROR_INVALID_PARAMETER\n",
 394      apiReturn);
 395     apiReturn = gGetTcpStatistics(&stats);
 396     ok(apiReturn == NO_ERROR,
 397       "GetTcpStatistics returned %d, expected NO_ERROR\n", apiReturn);
 398   }
 399 }
 400
 401 static void testGetUdpStatistics(void)
 402 {
 403   if (gGetUdpStatistics) {
 404     DWORD apiReturn;
 405     MIB_UDPSTATS stats;
 406
 407     apiReturn = gGetUdpStatistics(NULL);
 408     if (apiReturn == ERROR_NOT_SUPPORTED) {
 409       skip("GetUdpStatistics is not supported\n");
 410       return;
 411     }
 412     ok(apiReturn == ERROR_INVALID_PARAMETER,
 413      "GetUdpStatistics(NULL) returned %d, expected ERROR_INVALID_PARAMETER\n",
 414      apiReturn);
 415     apiReturn = gGetUdpStatistics(&stats);
 416     ok(apiReturn == NO_ERROR,
 417      "GetUdpStatistics returned %d, expected NO_ERROR\n", apiReturn);
 418   }
 419 }
 420
 421 static void testGetTcpTable(void)
 422 {
 423   if (gGetTcpTable) {
 424     DWORD apiReturn;
 425     ULONG dwSize = 0;
 426
 427     apiReturn = gGetTcpTable(NULL, &dwSize, FALSE);
 428     if (apiReturn == ERROR_NOT_SUPPORTED) {
 429       skip("GetTcpTable is not supported\n");
 430       return;
 431     }
 432     ok(apiReturn == ERROR_INSUFFICIENT_BUFFER ||
 433        broken(apiReturn == ERROR_NO_DATA), /* win95 */
 434      "GetTcpTable(NULL, &dwSize, FALSE) returned %d, expected ERROR_INSUFFICIENT_BUFFER\n",
 435      apiReturn);
 436     if (apiReturn == ERROR_INSUFFICIENT_BUFFER) {
 437       PMIB_TCPTABLE buf = HeapAlloc(GetProcessHeap(), 0, dwSize);
 438
 439       apiReturn = gGetTcpTable(buf, &dwSize, FALSE);
 440       ok(apiReturn == NO_ERROR,
 441        "GetTcpTable(buf, &dwSize, FALSE) returned %d, expected NO_ERROR\n",
 442        apiReturn);
 443       HeapFree(GetProcessHeap(), 0, buf);
 444     }
 445   }
 446 }
 447
 448 static void testGetUdpTable(void)
 449 {
 450   if (gGetUdpTable) {
 451     DWORD apiReturn;
 452     ULONG dwSize = 0;
 453
 454     apiReturn = gGetUdpTable(NULL, &dwSize, FALSE);
 455     if (apiReturn == ERROR_NOT_SUPPORTED) {
 456       skip("GetUdpTable is not supported\n");
 457       return;
 458     }
 459     ok(apiReturn == ERROR_INSUFFICIENT_BUFFER,
 460      "GetUdpTable(NULL, &dwSize, FALSE) returned %d, expected ERROR_INSUFFICIENT_BUFFER\n",
 461      apiReturn);
 462     if (apiReturn != ERROR_INSUFFICIENT_BUFFER) {
 463       PMIB_UDPTABLE buf = HeapAlloc(GetProcessHeap(), 0, dwSize);
 464
 465       apiReturn = gGetUdpTable(buf, &dwSize, FALSE);
 466       ok(apiReturn == NO_ERROR,
 467        "GetUdpTable(buf, &dwSize, FALSE) returned %d, expected NO_ERROR\n",
 468        apiReturn);
 469       HeapFree(GetProcessHeap(), 0, buf);
 470     }
 471   }
 472 }
 473
 474 /*
 475 still-to-be-tested NT4-onward functions:
 476 CreateIpForwardEntry
 477 DeleteIpForwardEntry
 478 CreateIpNetEntry
 479 DeleteIpNetEntry
 480 GetFriendlyIfIndex
 481 GetRTTAndHopCount
 482 SetIfEntry
 483 SetIpForwardEntry
 484 SetIpNetEntry
 485 SetIpStatistics
 486 SetIpTTL
 487 SetTcpEntry
 488 */
 489 static void testWinNT4Functions(void)
 490 {
 491   testGetNumberOfInterfaces();
 492   testGetIpAddrTable();
 493   testGetIfTable();
 494   testGetIpForwardTable();
 495   testGetIpNetTable();
 496   testGetIcmpStatistics();
 497   testGetIpStatistics();
 498   testGetTcpStatistics();
 499   testGetUdpStatistics();
 500   testGetTcpTable();
 501   testGetUdpTable();
 502 }
 503
 504 static void testGetInterfaceInfo(void)
 505 {
 506   if (gGetInterfaceInfo) {
 507     DWORD apiReturn;
 508     ULONG len = 0;
 509
 510     apiReturn = gGetInterfaceInfo(NULL, NULL);
 511     if (apiReturn == ERROR_NOT_SUPPORTED) {
 512       skip("GetInterfaceInfo is not supported\n");
 513       return;
 514     }
 515     ok(apiReturn == ERROR_INVALID_PARAMETER,
 516      "GetInterfaceInfo returned %d, expected ERROR_INVALID_PARAMETER\n",
 517      apiReturn);
 518     apiReturn = gGetInterfaceInfo(NULL, &len);
 519     ok(apiReturn == ERROR_INSUFFICIENT_BUFFER,
 520      "GetInterfaceInfo returned %d, expected ERROR_INSUFFICIENT_BUFFER\n",
 521      apiReturn);
 522     if (apiReturn == ERROR_INSUFFICIENT_BUFFER) {
 523       PIP_INTERFACE_INFO buf = HeapAlloc(GetProcessHeap(), 0, len);
 524
 525       apiReturn = gGetInterfaceInfo(buf, &len);
 526       ok(apiReturn == NO_ERROR,
 527        "GetInterfaceInfo(buf, &dwSize) returned %d, expected NO_ERROR\n",
 528        apiReturn);
 529       HeapFree(GetProcessHeap(), 0, buf);
 530     }
 531   }
 532 }
 533
 534 static void testGetAdaptersInfo(void)
 535 {
 536   if (gGetAdaptersInfo) {
 537     DWORD apiReturn;
 538     ULONG len = 0;
 539
 540     apiReturn = gGetAdaptersInfo(NULL, NULL);
 541     if (apiReturn == ERROR_NOT_SUPPORTED) {
 542       skip("GetAdaptersInfo is not supported\n");
 543       return;
 544     }
 545     ok(apiReturn == ERROR_INVALID_PARAMETER,
 546      "GetAdaptersInfo returned %d, expected ERROR_INVALID_PARAMETER\n",
 547      apiReturn);
 548     apiReturn = gGetAdaptersInfo(NULL, &len);
 549     ok(apiReturn == ERROR_NO_DATA || apiReturn == ERROR_BUFFER_OVERFLOW,
 550      "GetAdaptersInfo returned %d, expected ERROR_NO_DATA or ERROR_BUFFER_OVERFLOW\n",
 551      apiReturn);
 552     if (apiReturn == ERROR_NO_DATA)
 553       ; /* no adapter's, that's okay */
 554     else if (apiReturn == ERROR_BUFFER_OVERFLOW) {
 555       PIP_ADAPTER_INFO buf = HeapAlloc(GetProcessHeap(), 0, len);
 556
 557       apiReturn = gGetAdaptersInfo(buf, &len);
 558       ok(apiReturn == NO_ERROR,
 559        "GetAdaptersInfo(buf, &dwSize) returned %d, expected NO_ERROR\n",
 560        apiReturn);
 561       HeapFree(GetProcessHeap(), 0, buf);
 562     }
 563   }
 564 }
 565
 566 static void testGetNetworkParams(void)
 567 {
 568   if (gGetNetworkParams) {
 569     DWORD apiReturn;
 570     ULONG len = 0;
 571
 572     apiReturn = gGetNetworkParams(NULL, NULL);
 573     if (apiReturn == ERROR_NOT_SUPPORTED) {
 574       skip("GetNetworkParams is not supported\n");
 575       return;
 576     }
 577     ok(apiReturn == ERROR_INVALID_PARAMETER,
 578      "GetNetworkParams returned %d, expected ERROR_INVALID_PARAMETER\n",
 579      apiReturn);
 580     apiReturn = gGetNetworkParams(NULL, &len);
 581     ok(apiReturn == ERROR_BUFFER_OVERFLOW,
 582      "GetNetworkParams returned %d, expected ERROR_BUFFER_OVERFLOW\n",
 583      apiReturn);
 584     if (apiReturn == ERROR_BUFFER_OVERFLOW) {
 585       PFIXED_INFO buf = HeapAlloc(GetProcessHeap(), 0, len);
 586
 587       apiReturn = gGetNetworkParams(buf, &len);
 588       ok(apiReturn == NO_ERROR,
 589        "GetNetworkParams(buf, &dwSize) returned %d, expected NO_ERROR\n",
 590        apiReturn);
 591       HeapFree(GetProcessHeap(), 0, buf);
 592     }
 593   }
 594 }
 595
 596 /*
 597 still-to-be-tested 98-onward functions:
 598 GetBestInterface
 599 GetBestRoute
 600 IpReleaseAddress
 601 IpRenewAddress
 602 */
 603 static void testWin98Functions(void)
 604 {
 605   testGetInterfaceInfo();
 606   testGetAdaptersInfo();
 607   testGetNetworkParams();
 608 }
 609
 610 static void testGetPerAdapterInfo(void)
 611 {
 612     DWORD ret, needed;
 613     void *buffer;
 614
 615     if (!gGetPerAdapterInfo) return;
 616     ret = gGetPerAdapterInfo(1, NULL, NULL);
 617     if (ret == ERROR_NOT_SUPPORTED) {
 618       skip("GetPerAdapterInfo is not supported\n");
 619       return;
 620     }
 621     ok( ret == ERROR_INVALID_PARAMETER, "got %u instead of ERROR_INVALID_PARAMETER\n", ret );
 622     needed = 0xdeadbeef;
 623     ret = gGetPerAdapterInfo(1, NULL, &needed);
 624     if (ret == ERROR_NO_DATA) return;  /* no such adapter */
 625     ok( ret == ERROR_BUFFER_OVERFLOW, "got %u instead of ERROR_BUFFER_OVERFLOW\n", ret );
 626     ok( needed != 0xdeadbeef, "needed not set\n" );
 627     buffer = HeapAlloc( GetProcessHeap(), 0, needed );
 628     ret = gGetPerAdapterInfo(1, buffer, &needed);
 629     ok( ret == NO_ERROR, "got %u instead of NO_ERROR\n", ret );
 630     HeapFree( GetProcessHeap(), 0, buffer );
 631 }
 632
 633 /*
 634 still-to-be-tested 2K-onward functions:
 635 AddIPAddress
 636 CreateProxyArpEntry
 637 DeleteIPAddress
 638 DeleteProxyArpEntry
 639 EnableRouter
 640 FlushIpNetTable
 641 GetAdapterIndex
 642 NotifyAddrChange
 643 NotifyRouteChange
 644 SendARP
 645 UnenableRouter
 646 */
 647 static void testWin2KFunctions(void)
 648 {
 649     testGetPerAdapterInfo();
 650 }
 651
 652 START_TEST(iphlpapi)
 653 {
 654
 655   loadIPHlpApi();
 656   if (hLibrary) {
 657     testWin98OnlyFunctions();
 658     testWinNT4Functions();
 659     testWin98Functions();
 660     testWin2KFunctions();
 661     freeIPHlpApi();
 662   }
 663 }