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 = (PMIB_IPADDRTABLE)malloc(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       free(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 = (PMIB_IFTABLE)malloc(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       free(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 = (PMIB_IPFORWARDTABLE)malloc(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       free(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 = (PMIB_IPNETTABLE)malloc(dwSize);
 323
 324       apiReturn = gGetIpNetTable(buf, &dwSize, FALSE);
 325       ok(apiReturn == NO_ERROR,
 326        "GetIpNetTable(buf, &dwSize, FALSE) returned %d, expected NO_ERROR\n",
 327        apiReturn);
 328       free(buf);
 329     }
 330   }
 331 }
 332
 333 static void testGetIcmpStatistics(void)
 334 {
 335   if (gGetIcmpStatistics) {
 336     DWORD apiReturn;
 337     MIB_ICMP stats;
 338
 339     /* Crashes on Vista */
 340     if (0) {
 341       apiReturn = gGetIcmpStatistics(NULL);
 342       if (apiReturn == ERROR_NOT_SUPPORTED)
 343         return;
 344       ok(apiReturn == ERROR_INVALID_PARAMETER,
 345        "GetIcmpStatistics(NULL) returned %d, expected ERROR_INVALID_PARAMETER\n",
 346        apiReturn);
 347     }
 348
 349     apiReturn = gGetIcmpStatistics(&stats);
 350     if (apiReturn == ERROR_NOT_SUPPORTED)
 351     {
 352       skip("GetIcmpStatistics is not supported\n");
 353       return;
 354     }
 355     ok(apiReturn == NO_ERROR,
 356      "GetIcmpStatistics returned %d, expected NO_ERROR\n", apiReturn);
 357   }
 358 }
 359
 360 static void testGetIpStatistics(void)
 361 {
 362   if (gGetIpStatistics) {
 363     DWORD apiReturn;
 364     MIB_IPSTATS stats;
 365
 366     apiReturn = gGetIpStatistics(NULL);
 367     if (apiReturn == ERROR_NOT_SUPPORTED) {
 368       skip("GetIpStatistics is not supported\n");
 369       return;
 370     }
 371     ok(apiReturn == ERROR_INVALID_PARAMETER,
 372      "GetIpStatistics(NULL) returned %d, expected ERROR_INVALID_PARAMETER\n",
 373      apiReturn);
 374     apiReturn = gGetIpStatistics(&stats);
 375     ok(apiReturn == NO_ERROR,
 376       "GetIpStatistics returned %d, expected NO_ERROR\n", apiReturn);
 377   }
 378 }
 379
 380 static void testGetTcpStatistics(void)
 381 {
 382   if (gGetTcpStatistics) {
 383     DWORD apiReturn;
 384     MIB_TCPSTATS stats;
 385
 386     apiReturn = gGetTcpStatistics(NULL);
 387     if (apiReturn == ERROR_NOT_SUPPORTED) {
 388       skip("GetTcpStatistics is not supported\n");
 389       return;
 390     }
 391     ok(apiReturn == ERROR_INVALID_PARAMETER,
 392      "GetTcpStatistics(NULL) returned %d, expected ERROR_INVALID_PARAMETER\n",
 393      apiReturn);
 394     apiReturn = gGetTcpStatistics(&stats);
 395     ok(apiReturn == NO_ERROR,
 396       "GetTcpStatistics returned %d, expected NO_ERROR\n", apiReturn);
 397   }
 398 }
 399
 400 static void testGetUdpStatistics(void)
 401 {
 402   if (gGetUdpStatistics) {
 403     DWORD apiReturn;
 404     MIB_UDPSTATS stats;
 405
 406     apiReturn = gGetUdpStatistics(NULL);
 407     if (apiReturn == ERROR_NOT_SUPPORTED) {
 408       skip("GetUdpStatistics is not supported\n");
 409       return;
 410     }
 411     ok(apiReturn == ERROR_INVALID_PARAMETER,
 412      "GetUdpStatistics(NULL) returned %d, expected ERROR_INVALID_PARAMETER\n",
 413      apiReturn);
 414     apiReturn = gGetUdpStatistics(&stats);
 415     ok(apiReturn == NO_ERROR,
 416      "GetUdpStatistics returned %d, expected NO_ERROR\n", apiReturn);
 417   }
 418 }
 419
 420 static void testGetTcpTable(void)
 421 {
 422   if (gGetTcpTable) {
 423     DWORD apiReturn;
 424     ULONG dwSize = 0;
 425
 426     apiReturn = gGetTcpTable(NULL, NULL, FALSE);
 427     if (apiReturn == ERROR_NOT_SUPPORTED) {
 428       skip("GetTcpTable is not supported\n");
 429       return;
 430     }
 431     ok(apiReturn == ERROR_INVALID_PARAMETER,
 432      "GetTcpTable(NULL, NULL, FALSE) returned %d, expected ERROR_INVALID_PARAMETER\n",
 433      apiReturn);
 434     apiReturn = gGetTcpTable(NULL, &dwSize, FALSE);
 435     ok(apiReturn == ERROR_INSUFFICIENT_BUFFER,
 436      "GetTcpTable(NULL, &dwSize, FALSE) returned %d, expected ERROR_INSUFFICIENT_BUFFER\n",
 437      apiReturn);
 438     if (apiReturn == ERROR_INSUFFICIENT_BUFFER) {
 439       PMIB_TCPTABLE buf = (PMIB_TCPTABLE)malloc(dwSize);
 440
 441       apiReturn = gGetTcpTable(buf, &dwSize, FALSE);
 442       ok(apiReturn == NO_ERROR,
 443        "GetTcpTable(buf, &dwSize, FALSE) returned %d, expected NO_ERROR\n",
 444        apiReturn);
 445       free(buf);
 446     }
 447   }
 448 }
 449
 450 static void testGetUdpTable(void)
 451 {
 452   if (gGetUdpTable) {
 453     DWORD apiReturn;
 454     ULONG dwSize = 0;
 455
 456     apiReturn = gGetUdpTable(NULL, NULL, FALSE);
 457     if (apiReturn == ERROR_NOT_SUPPORTED) {
 458       skip("GetUdpTable is not supported\n");
 459       return;
 460     }
 461     ok(apiReturn == ERROR_INVALID_PARAMETER,
 462      "GetUdpTable(NULL, NULL, FALSE) returned %d, expected ERROR_INVALID_PARAMETER\n",
 463      apiReturn);
 464     apiReturn = gGetUdpTable(NULL, &dwSize, FALSE);
 465     ok(apiReturn == ERROR_INSUFFICIENT_BUFFER,
 466      "GetUdpTable(NULL, &dwSize, FALSE) returned %d, expected ERROR_INSUFFICIENT_BUFFER\n",
 467      apiReturn);
 468     if (apiReturn != ERROR_INSUFFICIENT_BUFFER) {
 469       PMIB_UDPTABLE buf = (PMIB_UDPTABLE)malloc(dwSize);
 470
 471       apiReturn = gGetUdpTable(buf, &dwSize, FALSE);
 472       ok(apiReturn == NO_ERROR,
 473        "GetUdpTable(buf, &dwSize, FALSE) returned %d, expected NO_ERROR\n",
 474        apiReturn);
 475       free(buf);
 476     }
 477   }
 478 }
 479
 480 /*
 481 still-to-be-tested NT4-onward functions:
 482 CreateIpForwardEntry
 483 DeleteIpForwardEntry
 484 CreateIpNetEntry
 485 DeleteIpNetEntry
 486 GetFriendlyIfIndex
 487 GetRTTAndHopCount
 488 SetIfEntry
 489 SetIpForwardEntry
 490 SetIpNetEntry
 491 SetIpStatistics
 492 SetIpTTL
 493 SetTcpEntry
 494 */
 495 static void testWinNT4Functions(void)
 496 {
 497   testGetNumberOfInterfaces();
 498   testGetIpAddrTable();
 499   testGetIfTable();
 500   testGetIpForwardTable();
 501   testGetIpNetTable();
 502   testGetIcmpStatistics();
 503   testGetIpStatistics();
 504   testGetTcpStatistics();
 505   testGetUdpStatistics();
 506   testGetTcpTable();
 507   testGetUdpTable();
 508 }
 509
 510 static void testGetInterfaceInfo(void)
 511 {
 512   if (gGetInterfaceInfo) {
 513     DWORD apiReturn;
 514     ULONG len = 0;
 515
 516     apiReturn = gGetInterfaceInfo(NULL, NULL);
 517     if (apiReturn == ERROR_NOT_SUPPORTED) {
 518       skip("GetInterfaceInfo is not supported\n");
 519       return;
 520     }
 521     ok(apiReturn == ERROR_INVALID_PARAMETER,
 522      "GetInterfaceInfo returned %d, expected ERROR_INVALID_PARAMETER\n",
 523      apiReturn);
 524     apiReturn = gGetInterfaceInfo(NULL, &len);
 525     ok(apiReturn == ERROR_INSUFFICIENT_BUFFER,
 526      "GetInterfaceInfo returned %d, expected ERROR_INSUFFICIENT_BUFFER\n",
 527      apiReturn);
 528     if (apiReturn == ERROR_INSUFFICIENT_BUFFER) {
 529       PIP_INTERFACE_INFO buf = (PIP_INTERFACE_INFO)malloc(len);
 530
 531       apiReturn = gGetInterfaceInfo(buf, &len);
 532       ok(apiReturn == NO_ERROR,
 533        "GetInterfaceInfo(buf, &dwSize) returned %d, expected NO_ERROR\n",
 534        apiReturn);
 535       free(buf);
 536     }
 537   }
 538 }
 539
 540 static void testGetAdaptersInfo(void)
 541 {
 542   if (gGetAdaptersInfo) {
 543     DWORD apiReturn;
 544     ULONG len = 0;
 545
 546     apiReturn = gGetAdaptersInfo(NULL, NULL);
 547     if (apiReturn == ERROR_NOT_SUPPORTED) {
 548       skip("GetAdaptersInfo is not supported\n");
 549       return;
 550     }
 551     ok(apiReturn == ERROR_INVALID_PARAMETER,
 552      "GetAdaptersInfo returned %d, expected ERROR_INVALID_PARAMETER\n",
 553      apiReturn);
 554     apiReturn = gGetAdaptersInfo(NULL, &len);
 555     ok(apiReturn == ERROR_NO_DATA || apiReturn == ERROR_BUFFER_OVERFLOW,
 556      "GetAdaptersInfo returned %d, expected ERROR_NO_DATA or ERROR_BUFFER_OVERFLOW\n",
 557      apiReturn);
 558     if (apiReturn == ERROR_NO_DATA)
 559       ; /* no adapter's, that's okay */
 560     else if (apiReturn == ERROR_BUFFER_OVERFLOW) {
 561       PIP_ADAPTER_INFO buf = (PIP_ADAPTER_INFO)malloc(len);
 562
 563       apiReturn = gGetAdaptersInfo(buf, &len);
 564       ok(apiReturn == NO_ERROR,
 565        "GetAdaptersInfo(buf, &dwSize) returned %d, expected NO_ERROR\n",
 566        apiReturn);
 567       free(buf);
 568     }
 569   }
 570 }
 571
 572 static void testGetNetworkParams(void)
 573 {
 574   if (gGetNetworkParams) {
 575     DWORD apiReturn;
 576     ULONG len = 0;
 577
 578     apiReturn = gGetNetworkParams(NULL, NULL);
 579     if (apiReturn == ERROR_NOT_SUPPORTED) {
 580       skip("GetNetworkParams is not supported\n");
 581       return;
 582     }
 583     ok(apiReturn == ERROR_INVALID_PARAMETER,
 584      "GetNetworkParams returned %d, expected ERROR_INVALID_PARAMETER\n",
 585      apiReturn);
 586     apiReturn = gGetNetworkParams(NULL, &len);
 587     ok(apiReturn == ERROR_BUFFER_OVERFLOW,
 588      "GetNetworkParams returned %d, expected ERROR_BUFFER_OVERFLOW\n",
 589      apiReturn);
 590     if (apiReturn == ERROR_BUFFER_OVERFLOW) {
 591       PFIXED_INFO buf = (PFIXED_INFO)malloc(len);
 592
 593       apiReturn = gGetNetworkParams(buf, &len);
 594       ok(apiReturn == NO_ERROR,
 595        "GetNetworkParams(buf, &dwSize) returned %d, expected NO_ERROR\n",
 596        apiReturn);
 597       free(buf);
 598     }
 599   }
 600 }
 601
 602 /*
 603 still-to-be-tested 98-onward functions:
 604 GetBestInterface
 605 GetBestRoute
 606 IpReleaseAddress
 607 IpRenewAddress
 608 */
 609 static void testWin98Functions(void)
 610 {
 611   testGetInterfaceInfo();
 612   testGetAdaptersInfo();
 613   testGetNetworkParams();
 614 }
 615
 616 static void testGetPerAdapterInfo(void)
 617 {
 618     DWORD ret, needed;
 619     void *buffer;
 620
 621     if (!gGetPerAdapterInfo) return;
 622     ret = gGetPerAdapterInfo(1, NULL, NULL);
 623     if (ret == ERROR_NOT_SUPPORTED) {
 624       skip("GetPerAdapterInfo is not supported\n");
 625       return;
 626     }
 627     ok( ret == ERROR_INVALID_PARAMETER, "got %u instead of ERROR_INVALID_PARAMETER\n", ret );
 628     needed = 0xdeadbeef;
 629     ret = gGetPerAdapterInfo(1, NULL, &needed);
 630     if (ret == ERROR_NO_DATA) return;  /* no such adapter */
 631     ok( ret == ERROR_BUFFER_OVERFLOW, "got %u instead of ERROR_BUFFER_OVERFLOW\n", ret );
 632     ok( needed != 0xdeadbeef, "needed not set\n" );
 633     buffer = HeapAlloc( GetProcessHeap(), 0, needed );
 634     ret = gGetPerAdapterInfo(1, buffer, &needed);
 635     ok( ret == NO_ERROR, "got %u instead of NO_ERROR\n", ret );
 636     HeapFree( GetProcessHeap(), 0, buffer );
 637 }
 638
 639 /*
 640 still-to-be-tested 2K-onward functions:
 641 AddIPAddress
 642 CreateProxyArpEntry
 643 DeleteIPAddress
 644 DeleteProxyArpEntry
 645 EnableRouter
 646 FlushIpNetTable
 647 GetAdapterIndex
 648 NotifyAddrChange
 649 NotifyRouteChange
 650 SendARP
 651 UnenableRouter
 652 */
 653 static void testWin2KFunctions(void)
 654 {
 655     testGetPerAdapterInfo();
 656 }
 657
 658 START_TEST(iphlpapi)
 659 {
 660
 661   loadIPHlpApi();
 662   if (hLibrary) {
 663     testWin98OnlyFunctions();
 664     testWinNT4Functions();
 665     testWin98Functions();
 666     testWin2KFunctions();
 667     freeIPHlpApi();
 668   }
 669 }