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   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
  65 static GetNumberOfInterfacesFunc gGetNumberOfInterfaces = NULL;
  66 static GetIpAddrTableFunc gGetIpAddrTable = NULL;
  67 static GetIfEntryFunc gGetIfEntry = NULL;
  68 static GetFriendlyIfIndexFunc gGetFriendlyIfIndex = NULL;
  69 static GetIfTableFunc gGetIfTable = NULL;
  70 static GetIpForwardTableFunc gGetIpForwardTable = NULL;
  71 static GetIpNetTableFunc gGetIpNetTable = NULL;
  72 static GetInterfaceInfoFunc gGetInterfaceInfo = NULL;
  73 static GetAdaptersInfoFunc gGetAdaptersInfo = NULL;
  74 static GetNetworkParamsFunc gGetNetworkParams = NULL;
  75 static GetIcmpStatisticsFunc gGetIcmpStatistics = NULL;
  76 static GetIpStatisticsFunc gGetIpStatistics = NULL;
  77 static GetTcpStatisticsFunc gGetTcpStatistics = NULL;
  78 static GetUdpStatisticsFunc gGetUdpStatistics = NULL;
  79 static GetTcpTableFunc gGetTcpTable = NULL;
  80 static GetUdpTableFunc gGetUdpTable = NULL;
  81
  82 static void loadIPHlpApi(void)
  83 {
  84   hLibrary = LoadLibraryA("iphlpapi.dll");
  85   if (hLibrary) {
  86     gGetNumberOfInterfaces = (GetNumberOfInterfacesFunc)GetProcAddress(
  87      hLibrary, "GetNumberOfInterfaces");
  88     gGetIpAddrTable = (GetIpAddrTableFunc)GetProcAddress(
  89      hLibrary, "GetIpAddrTable");
  90     gGetIfEntry = (GetIfEntryFunc)GetProcAddress(
  91      hLibrary, "GetIfEntry");
  92     gGetFriendlyIfIndex = (GetFriendlyIfIndexFunc)GetProcAddress(
  93      hLibrary, "GetFriendlyIfIndex");
  94     gGetIfTable = (GetIfTableFunc)GetProcAddress(
  95      hLibrary, "GetIfTable");
  96     gGetIpForwardTable = (GetIpForwardTableFunc)GetProcAddress(
  97      hLibrary, "GetIpForwardTable");
  98     gGetIpNetTable = (GetIpNetTableFunc)GetProcAddress(
  99      hLibrary, "GetIpNetTable");
 100     gGetInterfaceInfo = (GetInterfaceInfoFunc)GetProcAddress(
 101      hLibrary, "GetInterfaceInfo");
 102     gGetAdaptersInfo = (GetAdaptersInfoFunc)GetProcAddress(
 103      hLibrary, "GetAdaptersInfo");
 104     gGetNetworkParams = (GetNetworkParamsFunc)GetProcAddress(
 105      hLibrary, "GetNetworkParams");
 106     gGetIcmpStatistics = (GetIcmpStatisticsFunc)GetProcAddress(
 107      hLibrary, "GetIcmpStatistics");
 108     gGetIpStatistics = (GetIpStatisticsFunc)GetProcAddress(
 109      hLibrary, "GetIpStatistics");
 110     gGetTcpStatistics = (GetTcpStatisticsFunc)GetProcAddress(
 111      hLibrary, "GetTcpStatistics");
 112     gGetUdpStatistics = (GetUdpStatisticsFunc)GetProcAddress(
 113      hLibrary, "GetUdpStatistics");
 114     gGetTcpTable = (GetTcpTableFunc)GetProcAddress(
 115      hLibrary, "GetTcpTable");
 116     gGetUdpTable = (GetUdpTableFunc)GetProcAddress(
 117      hLibrary, "GetUdpTable");
 118   }
 119 }
 120
 121 static void freeIPHlpApi(void)
 122 {
 123   if (hLibrary) {
 124     gGetNumberOfInterfaces = NULL;
 125     gGetIpAddrTable = NULL;
 126     gGetIfEntry = NULL;
 127     gGetFriendlyIfIndex = NULL;
 128     gGetIfTable = NULL;
 129     gGetIpForwardTable = NULL;
 130     gGetIpNetTable = NULL;
 131     gGetInterfaceInfo = NULL;
 132     gGetAdaptersInfo = NULL;
 133     gGetNetworkParams = NULL;
 134     gGetIcmpStatistics = NULL;
 135     gGetIpStatistics = NULL;
 136     gGetTcpStatistics = NULL;
 137     gGetUdpStatistics = NULL;
 138     gGetTcpTable = NULL;
 139     gGetUdpTable = NULL;
 140     FreeLibrary(hLibrary);
 141     hLibrary = NULL;
 142   }
 143 }
 144
 145 /*
 146 still-to-be-tested 98-only functions:
 147 GetUniDirectionalAdapterInfo
 148 */
 149 static void testWin98OnlyFunctions(void)
 150 {
 151 }
 152
 153 static void testGetNumberOfInterfaces(void)
 154 {
 155   if (gGetNumberOfInterfaces) {
 156     DWORD apiReturn = gGetNumberOfInterfaces(NULL), numInterfaces;
 157
 158     if (apiReturn == ERROR_NOT_SUPPORTED)
 159       return;
 160     ok(apiReturn == ERROR_INVALID_PARAMETER,
 161      "GetNumberOfInterfaces(NULL) returned %d, expected ERROR_INVALID_PARAMETER\n",
 162      apiReturn);
 163     apiReturn = gGetNumberOfInterfaces(&numInterfaces);
 164     ok(apiReturn == NO_ERROR,
 165      "GetNumberOfInterfaces returned %d, expected 0\n", apiReturn);
 166   }
 167 }
 168
 169 static void testGetIfEntry(DWORD index)
 170 {
 171   if (gGetIfEntry) {
 172     DWORD apiReturn;
 173     MIB_IFROW row;
 174
 175     memset(&row, 0, sizeof(row));
 176     apiReturn = gGetIfEntry(NULL);
 177     if (apiReturn == ERROR_NOT_SUPPORTED)
 178       return;
 179     ok(apiReturn == ERROR_INVALID_PARAMETER,
 180      "GetIfEntry(NULL) returned %d, expected ERROR_INVALID_PARAMETER\n",
 181      apiReturn);
 182     row.dwIndex = -1; /* hope that's always bogus! */
 183     apiReturn = gGetIfEntry(&row);
 184     ok(apiReturn == ERROR_INVALID_DATA,
 185      "GetIfEntry(bogus row) returned %d, expected ERROR_INVALID_DATA\n",
 186      apiReturn);
 187     row.dwIndex = index;
 188     apiReturn = gGetIfEntry(&row);
 189     ok(apiReturn == NO_ERROR,
 190      "GetIfEntry returned %d, expected NO_ERROR\n", apiReturn);
 191   }
 192 }
 193
 194 static void testGetIpAddrTable(void)
 195 {
 196   if (gGetIpAddrTable) {
 197     DWORD apiReturn;
 198     ULONG dwSize = 0;
 199
 200     apiReturn = gGetIpAddrTable(NULL, NULL, FALSE);
 201     if (apiReturn == ERROR_NOT_SUPPORTED)
 202       return;
 203     ok(apiReturn == ERROR_INVALID_PARAMETER,
 204      "GetIpAddrTable(NULL, NULL, FALSE) returned %d, expected ERROR_INVALID_PARAMETER\n",
 205      apiReturn);
 206     apiReturn = gGetIpAddrTable(NULL, &dwSize, FALSE);
 207     ok(apiReturn == ERROR_INSUFFICIENT_BUFFER,
 208      "GetIpAddrTable(NULL, &dwSize, FALSE) returned %d, expected ERROR_INSUFFICIENT_BUFFER\n",
 209      apiReturn);
 210     if (apiReturn == ERROR_INSUFFICIENT_BUFFER) {
 211       PMIB_IPADDRTABLE buf = (PMIB_IPADDRTABLE)malloc(dwSize);
 212
 213       apiReturn = gGetIpAddrTable(buf, &dwSize, FALSE);
 214       ok(apiReturn == NO_ERROR,
 215        "GetIpAddrTable(buf, &dwSize, FALSE) returned %d, expected NO_ERROR\n",
 216        apiReturn);
 217       if (apiReturn == NO_ERROR && buf->dwNumEntries)
 218         testGetIfEntry(buf->table[0].dwIndex);
 219       free(buf);
 220     }
 221   }
 222 }
 223
 224 static void testGetIfTable(void)
 225 {
 226   if (gGetIfTable) {
 227     DWORD apiReturn;
 228     ULONG dwSize = 0;
 229
 230     apiReturn = gGetIfTable(NULL, NULL, FALSE);
 231     if (apiReturn == ERROR_NOT_SUPPORTED)
 232       return;
 233     ok(apiReturn == ERROR_INVALID_PARAMETER,
 234      "GetIfTable(NULL, NULL, FALSE) returned %d, expected ERROR_INVALID_PARAMETER\n",
 235      apiReturn);
 236     apiReturn = gGetIfTable(NULL, &dwSize, FALSE);
 237     ok(apiReturn == ERROR_INSUFFICIENT_BUFFER,
 238      "GetIfTable(NULL, &dwSize, FALSE) returned %d, expected ERROR_INSUFFICIENT_BUFFER\n",
 239      apiReturn);
 240     if (apiReturn == ERROR_INSUFFICIENT_BUFFER) {
 241       PMIB_IFTABLE buf = (PMIB_IFTABLE)malloc(dwSize);
 242
 243       apiReturn = gGetIfTable(buf, &dwSize, FALSE);
 244       ok(apiReturn == NO_ERROR,
 245        "GetIfTable(buf, &dwSize, FALSE) returned %d, expected NO_ERROR\n\n",
 246        apiReturn);
 247       free(buf);
 248     }
 249   }
 250 }
 251
 252 static void testGetIpForwardTable(void)
 253 {
 254   if (gGetIpForwardTable) {
 255     DWORD apiReturn;
 256     ULONG dwSize = 0;
 257
 258     apiReturn = gGetIpForwardTable(NULL, NULL, FALSE);
 259     if (apiReturn == ERROR_NOT_SUPPORTED)
 260       return;
 261     ok(apiReturn == ERROR_INVALID_PARAMETER,
 262      "GetIpForwardTable(NULL, NULL, FALSE) returned %d, expected ERROR_INVALID_PARAMETER\n",
 263      apiReturn);
 264     apiReturn = gGetIpForwardTable(NULL, &dwSize, FALSE);
 265     ok(apiReturn == ERROR_INSUFFICIENT_BUFFER,
 266      "GetIpForwardTable(NULL, &dwSize, FALSE) returned %d, expected ERROR_INSUFFICIENT_BUFFER\n",
 267      apiReturn);
 268     if (apiReturn == ERROR_INSUFFICIENT_BUFFER) {
 269       PMIB_IPFORWARDTABLE buf = (PMIB_IPFORWARDTABLE)malloc(dwSize);
 270
 271       apiReturn = gGetIpForwardTable(buf, &dwSize, FALSE);
 272       ok(apiReturn == NO_ERROR,
 273        "GetIpForwardTable(buf, &dwSize, FALSE) returned %d, expected NO_ERROR\n",
 274        apiReturn);
 275       free(buf);
 276     }
 277   }
 278 }
 279
 280 static void testGetIpNetTable(void)
 281 {
 282   if (gGetIpNetTable) {
 283     DWORD apiReturn;
 284     ULONG dwSize = 0;
 285
 286     apiReturn = gGetIpNetTable(NULL, NULL, FALSE);
 287     if (apiReturn == ERROR_NOT_SUPPORTED)
 288       return;
 289     ok(apiReturn == ERROR_INVALID_PARAMETER,
 290      "GetIpNetTable(NULL, NULL, FALSE) returned %d, expected ERROR_INVALID_PARAMETER\n",
 291      apiReturn);
 292     apiReturn = gGetIpNetTable(NULL, &dwSize, FALSE);
 293     ok(apiReturn == ERROR_NO_DATA || apiReturn == ERROR_INSUFFICIENT_BUFFER,
 294      "GetIpNetTable(NULL, &dwSize, FALSE) returned %d, expected ERROR_NO_DATA or ERROR_INSUFFICIENT_BUFFER\n",
 295      apiReturn);
 296     if (apiReturn == ERROR_NO_DATA)
 297       ; /* empty ARP table's okay */
 298     else if (apiReturn == ERROR_INSUFFICIENT_BUFFER) {
 299       PMIB_IPNETTABLE buf = (PMIB_IPNETTABLE)malloc(dwSize);
 300
 301       apiReturn = gGetIpNetTable(buf, &dwSize, FALSE);
 302       ok(apiReturn == NO_ERROR,
 303        "GetIpNetTable(buf, &dwSize, FALSE) returned %d, expected NO_ERROR\n",
 304        apiReturn);
 305       free(buf);
 306     }
 307   }
 308 }
 309
 310 static void testGetIcmpStatistics(void)
 311 {
 312   if (gGetIcmpStatistics) {
 313     DWORD apiReturn;
 314     MIB_ICMP stats;
 315
 316     apiReturn = gGetIcmpStatistics(NULL);
 317     if (apiReturn == ERROR_NOT_SUPPORTED)
 318       return;
 319     ok(apiReturn == ERROR_INVALID_PARAMETER,
 320      "GetIcmpStatistics(NULL) returned %d, expected ERROR_INVALID_PARAMETER\n",
 321      apiReturn);
 322     apiReturn = gGetIcmpStatistics(&stats);
 323     ok(apiReturn == NO_ERROR,
 324      "GetIcmpStatistics returned %d, expected NO_ERROR\n", apiReturn);
 325   }
 326 }
 327
 328 static void testGetIpStatistics(void)
 329 {
 330   if (gGetIpStatistics) {
 331     DWORD apiReturn;
 332     MIB_IPSTATS stats;
 333
 334     apiReturn = gGetIpStatistics(NULL);
 335     if (apiReturn == ERROR_NOT_SUPPORTED)
 336       return;
 337     ok(apiReturn == ERROR_INVALID_PARAMETER,
 338      "GetIpStatistics(NULL) returned %d, expected ERROR_INVALID_PARAMETER\n",
 339      apiReturn);
 340     apiReturn = gGetIpStatistics(&stats);
 341     ok(apiReturn == NO_ERROR,
 342       "GetIpStatistics returned %d, expected NO_ERROR\n", apiReturn);
 343   }
 344 }
 345
 346 static void testGetTcpStatistics(void)
 347 {
 348   if (gGetTcpStatistics) {
 349     DWORD apiReturn;
 350     MIB_TCPSTATS stats;
 351
 352     apiReturn = gGetTcpStatistics(NULL);
 353     if (apiReturn == ERROR_NOT_SUPPORTED)
 354       return;
 355     ok(apiReturn == ERROR_INVALID_PARAMETER,
 356      "GetTcpStatistics(NULL) returned %d, expected ERROR_INVALID_PARAMETER\n",
 357      apiReturn);
 358     apiReturn = gGetTcpStatistics(&stats);
 359     ok(apiReturn == NO_ERROR,
 360       "GetTcpStatistics returned %d, expected NO_ERROR\n", apiReturn);
 361   }
 362 }
 363
 364 static void testGetUdpStatistics(void)
 365 {
 366   if (gGetUdpStatistics) {
 367     DWORD apiReturn;
 368     MIB_UDPSTATS stats;
 369
 370     apiReturn = gGetUdpStatistics(NULL);
 371     if (apiReturn == ERROR_NOT_SUPPORTED)
 372       return;
 373     ok(apiReturn == ERROR_INVALID_PARAMETER,
 374      "GetUdpStatistics(NULL) returned %d, expected ERROR_INVALID_PARAMETER\n",
 375      apiReturn);
 376     apiReturn = gGetUdpStatistics(&stats);
 377     ok(apiReturn == NO_ERROR,
 378      "GetUdpStatistics returned %d, expected NO_ERROR\n", apiReturn);
 379   }
 380 }
 381
 382 static void testGetTcpTable(void)
 383 {
 384   if (gGetTcpTable) {
 385     DWORD apiReturn;
 386     ULONG dwSize = 0;
 387
 388     apiReturn = gGetTcpTable(NULL, NULL, FALSE);
 389     if (apiReturn == ERROR_NOT_SUPPORTED)
 390       return;
 391     ok(apiReturn == ERROR_INVALID_PARAMETER,
 392      "GetTcpTable(NULL, NULL, FALSE) returned %d, expected ERROR_INVALID_PARAMETER\n",
 393      apiReturn);
 394     apiReturn = gGetTcpTable(NULL, &dwSize, FALSE);
 395     ok(apiReturn == ERROR_INSUFFICIENT_BUFFER,
 396      "GetTcpTable(NULL, &dwSize, FALSE) returned %d, expected ERROR_INSUFFICIENT_BUFFER\n",
 397      apiReturn);
 398     if (apiReturn == ERROR_INSUFFICIENT_BUFFER) {
 399       PMIB_TCPTABLE buf = (PMIB_TCPTABLE)malloc(dwSize);
 400
 401       apiReturn = gGetTcpTable(buf, &dwSize, FALSE);
 402       ok(apiReturn == NO_ERROR,
 403        "GetTcpTable(buf, &dwSize, FALSE) returned %d, expected NO_ERROR\n",
 404        apiReturn);
 405       free(buf);
 406     }
 407   }
 408 }
 409
 410 static void testGetUdpTable(void)
 411 {
 412   if (gGetUdpTable) {
 413     DWORD apiReturn;
 414     ULONG dwSize = 0;
 415
 416     apiReturn = gGetUdpTable(NULL, NULL, FALSE);
 417     if (apiReturn == ERROR_NOT_SUPPORTED)
 418       return;
 419     ok(apiReturn == ERROR_INVALID_PARAMETER,
 420      "GetUdpTable(NULL, NULL, FALSE) returned %d, expected ERROR_INVALID_PARAMETER\n",
 421      apiReturn);
 422     apiReturn = gGetUdpTable(NULL, &dwSize, FALSE);
 423     ok(apiReturn == ERROR_INSUFFICIENT_BUFFER,
 424      "GetUdpTable(NULL, &dwSize, FALSE) returned %d, expected ERROR_INSUFFICIENT_BUFFER\n",
 425      apiReturn);
 426     if (apiReturn != ERROR_INSUFFICIENT_BUFFER) {
 427       PMIB_UDPTABLE buf = (PMIB_UDPTABLE)malloc(dwSize);
 428
 429       apiReturn = gGetUdpTable(buf, &dwSize, FALSE);
 430       ok(apiReturn == NO_ERROR,
 431        "GetUdpTable(buf, &dwSize, FALSE) returned %d, expected NO_ERROR\n",
 432        apiReturn);
 433       free(buf);
 434     }
 435   }
 436 }
 437
 438 /*
 439 still-to-be-tested NT4-onward functions:
 440 CreateIpForwardEntry
 441 DeleteIpForwardEntry
 442 CreateIpNetEntry
 443 DeleteIpNetEntry
 444 GetFriendlyIfIndex
 445 GetRTTAndHopCount
 446 SetIfEntry
 447 SetIpForwardEntry
 448 SetIpNetEntry
 449 SetIpStatistics
 450 SetIpTTL
 451 SetTcpEntry
 452 */
 453 static void testWinNT4Functions(void)
 454 {
 455   testGetNumberOfInterfaces();
 456   testGetIpAddrTable();
 457   testGetIfTable();
 458   testGetIpForwardTable();
 459   testGetIpNetTable();
 460   testGetIcmpStatistics();
 461   testGetIpStatistics();
 462   testGetTcpStatistics();
 463   testGetUdpStatistics();
 464   testGetTcpTable();
 465   testGetUdpTable();
 466 }
 467
 468 static void testGetInterfaceInfo(void)
 469 {
 470   if (gGetInterfaceInfo) {
 471     DWORD apiReturn;
 472     ULONG len = 0;
 473
 474     apiReturn = gGetInterfaceInfo(NULL, NULL);
 475     if (apiReturn == ERROR_NOT_SUPPORTED)
 476       return;
 477     ok(apiReturn == ERROR_INVALID_PARAMETER,
 478      "GetInterfaceInfo returned %d, expected ERROR_INVALID_PARAMETER\n",
 479      apiReturn);
 480     apiReturn = gGetInterfaceInfo(NULL, &len);
 481     ok(apiReturn == ERROR_INSUFFICIENT_BUFFER,
 482      "GetInterfaceInfo returned %d, expected ERROR_INSUFFICIENT_BUFFER\n",
 483      apiReturn);
 484     if (apiReturn == ERROR_INSUFFICIENT_BUFFER) {
 485       PIP_INTERFACE_INFO buf = (PIP_INTERFACE_INFO)malloc(len);
 486
 487       apiReturn = gGetInterfaceInfo(buf, &len);
 488       ok(apiReturn == NO_ERROR,
 489        "GetInterfaceInfo(buf, &dwSize) returned %d, expected NO_ERROR\n",
 490        apiReturn);
 491       free(buf);
 492     }
 493   }
 494 }
 495
 496 static void testGetAdaptersInfo(void)
 497 {
 498   if (gGetAdaptersInfo) {
 499     DWORD apiReturn;
 500     ULONG len = 0;
 501
 502     apiReturn = gGetAdaptersInfo(NULL, NULL);
 503     if (apiReturn == ERROR_NOT_SUPPORTED)
 504       return;
 505     ok(apiReturn == ERROR_INVALID_PARAMETER,
 506      "GetAdaptersInfo returned %d, expected ERROR_INVALID_PARAMETER\n",
 507      apiReturn);
 508     apiReturn = gGetAdaptersInfo(NULL, &len);
 509     ok(apiReturn == ERROR_NO_DATA || apiReturn == ERROR_BUFFER_OVERFLOW,
 510      "GetAdaptersInfo returned %d, expected ERROR_NO_DATA or ERROR_BUFFER_OVERFLOW\n",
 511      apiReturn);
 512     if (apiReturn == ERROR_NO_DATA)
 513       ; /* no adapter's, that's okay */
 514     else if (apiReturn == ERROR_BUFFER_OVERFLOW) {
 515       PIP_ADAPTER_INFO buf = (PIP_ADAPTER_INFO)malloc(len);
 516
 517       apiReturn = gGetAdaptersInfo(buf, &len);
 518       ok(apiReturn == NO_ERROR,
 519        "GetAdaptersInfo(buf, &dwSize) returned %d, expected NO_ERROR\n",
 520        apiReturn);
 521       free(buf);
 522     }
 523   }
 524 }
 525
 526 static void testGetNetworkParams(void)
 527 {
 528   if (gGetNetworkParams) {
 529     DWORD apiReturn;
 530     ULONG len = 0;
 531
 532     apiReturn = gGetNetworkParams(NULL, NULL);
 533     if (apiReturn == ERROR_NOT_SUPPORTED)
 534       return;
 535     ok(apiReturn == ERROR_INVALID_PARAMETER,
 536      "GetNetworkParams returned %d, expected ERROR_INVALID_PARAMETER\n",
 537      apiReturn);
 538     apiReturn = gGetNetworkParams(NULL, &len);
 539     ok(apiReturn == ERROR_BUFFER_OVERFLOW,
 540      "GetNetworkParams returned %d, expected ERROR_BUFFER_OVERFLOW\n",
 541      apiReturn);
 542     if (apiReturn == ERROR_BUFFER_OVERFLOW) {
 543       PFIXED_INFO buf = (PFIXED_INFO)malloc(len);
 544
 545       apiReturn = gGetNetworkParams(buf, &len);
 546       ok(apiReturn == NO_ERROR,
 547        "GetNetworkParams(buf, &dwSize) returned %d, expected NO_ERROR\n",
 548        apiReturn);
 549       free(buf);
 550     }
 551   }
 552 }
 553
 554 /*
 555 still-to-be-tested 98-onward functions:
 556 GetBestInterface
 557 GetBestRoute
 558 IpReleaseAddress
 559 IpRenewAddress
 560 */
 561 static void testWin98Functions(void)
 562 {
 563   testGetInterfaceInfo();
 564   testGetAdaptersInfo();
 565   testGetNetworkParams();
 566 }
 567
 568 /*
 569 still-to-be-tested 2K-onward functions:
 570 AddIPAddress
 571 CreateProxyArpEntry
 572 DeleteIPAddress
 573 DeleteProxyArpEntry
 574 EnableRouter
 575 FlushIpNetTable
 576 GetAdapterIndex
 577 GetPerAdapterInfo
 578 NotifyAddrChange
 579 NotifyRouteChange
 580 SendARP
 581 UnenableRouter
 582 */
 583 static void testWin2KFunctions(void)
 584 {
 585 }
 586
 587 START_TEST(iphlpapi)
 588 {
 589
 590   loadIPHlpApi();
 591   if (hLibrary) {
 592     testWin98OnlyFunctions();
 593     testWinNT4Functions();
 594     testWin98Functions();
 595     testWin2KFunctions();
 596     freeIPHlpApi();
 597   }
 598 }