base/applications/network/netstat/netstat.c

   1 /*
   2  * PROJECT:     ReactOS netstat utility
   3  * LICENSE:     GPL - See COPYING in the top level directory
   4  * FILE:        base/applications/network/netstat/netstat.c
   5  * PURPOSE:     display IP stack statistics
   6  * COPYRIGHT:   Copyright 2005 Ged Murphy <gedmurphy@gmail.com>
   7  */
   8 /*
   9  * TODO:
  10  * sort function return values.
  11  * implement -b, -o and -v
  12  * clean up GetIpHostName
  13  * command line parser needs more work
  14  */
  15
  16 #define WIN32_NO_STATUS
  17 #include <stdarg.h>
  18 #include <windef.h>
  19 #include <winbase.h>
  20 #define _INC_WINDOWS
  21 #include <winsock2.h>
  22 #include <wchar.h>
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <iphlpapi.h>
  26
  27 #include <conutils.h>
  28
  29 #include "netstat.h"
  30 #include "resource.h"
  31
  32 enum ProtoType {IP, TCP, UDP, ICMP} Protocol;
  33 DWORD Interval; /* time to pause between printing output */
  34
  35 /* TCP endpoint states */
  36 PCWSTR TcpState[] = {
  37     L"???",
  38     L"CLOSED",
  39     L"LISTENING",
  40     L"SYN_SENT",
  41     L"SYN_RCVD",
  42     L"ESTABLISHED",
  43     L"FIN_WAIT1",
  44     L"FIN_WAIT2",
  45     L"CLOSE_WAIT",
  46     L"CLOSING",
  47     L"LAST_ACK",
  48     L"TIME_WAIT",
  49     L"DELETE_TCB"
  50 };
  51
  52 /*
  53  * format message string and display output
  54  */
  55 VOID DoFormatMessage(DWORD ErrorCode)
  56 {
  57     if (ErrorCode == ERROR_SUCCESS)
  58         return;
  59
  60     ConMsgPuts(StdErr, FORMAT_MESSAGE_FROM_SYSTEM,
  61                NULL, ErrorCode, LANG_USER_DEFAULT);
  62 }
  63
  64 /*
  65  *
  66  * Parse command line parameters and set any options
  67  *
  68  */
  69 BOOL ParseCmdline(int argc, wchar_t* argv[])
  70 {
  71     LPWSTR Proto;
  72     WCHAR c;
  73     INT i;
  74
  75     if ((argc == 1) || (iswdigit(*argv[1])))
  76         bNoOptions = TRUE;
  77
  78     /* Parse command line for options we have been given. */
  79     for (i = 1; i < argc; i++)
  80     {
  81         if ((argc > 1) && (argv[i][0] == L'-' || argv[i][0] == L'/'))
  82         {
  83             while ((c = *++argv[i]) != L'\0')
  84             {
  85                 switch (towlower(c))
  86                 {
  87                     case L'a':
  88                         bDoShowAllCons = TRUE;
  89                         break;
  90                     case L'b':
  91                         bDoShowProcName = TRUE;
  92                         break;
  93                     case L'e':
  94                         bDoShowEthStats = TRUE;
  95                         break;
  96                     case L'n':
  97                         bDoShowNumbers = TRUE;
  98                         break;
  99                     case L'p':
 100                         bDoShowProtoCons = TRUE;
 101                         Proto = argv[i+1];
 102                         if (!_wcsicmp(L"IP", Proto))
 103                             Protocol = IP;
 104                         else if (!_wcsicmp(L"ICMP", Proto))
 105                             Protocol = ICMP;
 106                         else if (!_wcsicmp(L"TCP", Proto))
 107                             Protocol = TCP;
 108                         else if (!_wcsicmp(L"UDP", Proto))
 109                             Protocol = UDP;
 110                         else
 111                         {
 112                             ConResPuts(StdOut, IDS_USAGE);
 113                             return EXIT_FAILURE;
 114                         }
 115                         break;
 116                     case L'r':
 117                         bDoShowRouteTable = TRUE;
 118                         break;
 119                     case L's':
 120                         bDoShowProtoStats = TRUE;
 121                         break;
 122                     case L'o':
 123                         bDoShowProcessId = TRUE;
 124                         break;
 125                     case L'v':
 126                         // FIXME!
 127                         ConPuts(StdOut, L"got v\n");
 128                         bDoDispSeqComp = TRUE;
 129                         break;
 130                     default :
 131                         ConResPuts(StdOut, IDS_USAGE);
 132                         return EXIT_FAILURE;
 133                 }
 134             }
 135         }
 136         else if (iswdigit(*argv[i]) != 0)
 137         {
 138             if (swscanf(argv[i], L"%lu", &Interval) != EOF)
 139                 bLoopOutput = TRUE;
 140             else
 141                 return EXIT_FAILURE;
 142         }
 143 //        else
 144 //        {
 145 //            ConResPrintf(StdOut, IDS_USAGE);
 146 //            return EXIT_FAILURE;
 147 //        }
 148     }
 149
 150     return EXIT_SUCCESS;
 151 }
 152
 153 /*
 154  * Display table header
 155  */
 156 VOID DisplayTableHeader(VOID)
 157 {
 158     ConResPuts(StdOut, IDS_DISPLAY_THEADER);
 159     if (bDoShowProcessId)
 160         ConResPuts(StdOut, IDS_DISPLAY_PROCESS);
 161     else
 162         ConPuts(StdOut, L"\n");
 163 }
 164
 165 /*
 166  * Simulate Microsofts netstat utility output
 167  */
 168 BOOL DisplayOutput(VOID)
 169 {
 170     if (bNoOptions)
 171     {
 172         DisplayTableHeader();
 173         ShowTcpTable();
 174         return EXIT_SUCCESS;
 175     }
 176
 177     if (bDoShowRouteTable)
 178     {
 179         if (_wsystem(L"route print") == -1)
 180         {
 181             ConResPuts(StdErr, IDS_ERROR_ROUTE);
 182             return EXIT_FAILURE;
 183         }
 184         return EXIT_SUCCESS;
 185     }
 186
 187     if (bDoShowEthStats)
 188     {
 189         ShowEthernetStatistics();
 190         return EXIT_SUCCESS;
 191     }
 192
 193     if (bDoShowProtoCons)
 194     {
 195         switch (Protocol)
 196         {
 197             case IP:
 198                 if (bDoShowProtoStats)
 199                 {
 200                     ShowIpStatistics();
 201                     return EXIT_SUCCESS;
 202                 }
 203                 break;
 204             case ICMP:
 205                 if (bDoShowProtoStats)
 206                 {
 207                     ShowIcmpStatistics();
 208                     return EXIT_SUCCESS;
 209                 }
 210                 break;
 211             case TCP:
 212                 if (bDoShowProtoStats)
 213                     ShowTcpStatistics();
 214                 ConResPuts(StdOut, IDS_ACTIVE_CONNECT);
 215                 DisplayTableHeader();
 216                 ShowTcpTable();
 217                 break;
 218             case UDP:
 219                 if (bDoShowProtoStats)
 220                     ShowUdpStatistics();
 221                 ConResPuts(StdOut, IDS_ACTIVE_CONNECT);
 222                 DisplayTableHeader();
 223                 ShowUdpTable();
 224                 break;
 225             default:
 226                 break;
 227         }
 228     }
 229     else if (bDoShowProtoStats)
 230     {
 231         ShowIpStatistics();
 232         ShowIcmpStatistics();
 233         ShowTcpStatistics();
 234         ShowUdpStatistics();
 235         return EXIT_SUCCESS;
 236     }
 237     else
 238     {
 239         ConResPuts(StdOut, IDS_ACTIVE_CONNECT);
 240         DisplayTableHeader();
 241         ShowTcpTable();
 242         if (bDoShowAllCons)
 243             ShowUdpTable();
 244     }
 245     return EXIT_SUCCESS;
 246 }
 247
 248 VOID ShowIpStatistics(VOID)
 249 {
 250     PMIB_IPSTATS pIpStats;
 251     DWORD dwRetVal;
 252
 253     pIpStats = (MIB_IPSTATS*) HeapAlloc(GetProcessHeap(), 0, sizeof(MIB_IPSTATS));
 254
 255     if ((dwRetVal = GetIpStatistics(pIpStats)) == NO_ERROR)
 256     {
 257         ConResPuts(StdOut, IDS_IP4_STAT_HEADER);
 258         ConResPrintf(StdOut, IDS_IP_PACK_REC, pIpStats->dwInReceives);
 259         ConResPrintf(StdOut, IDS_IP_HEAD_REC_ERROR, pIpStats->dwInHdrErrors);
 260         ConResPrintf(StdOut, IDS_IP_ADDR_REC_ERROR, pIpStats->dwInAddrErrors);
 261         ConResPrintf(StdOut, IDS_IP_DATAG_FWD, pIpStats->dwForwDatagrams);
 262         ConResPrintf(StdOut, IDS_IP_UNKNOWN_PRO_REC, pIpStats->dwInUnknownProtos);
 263         ConResPrintf(StdOut, IDS_IP_REC_PACK_DISCARD, pIpStats->dwInDiscards);
 264         ConResPrintf(StdOut, IDS_IP_REC_PACK_DELIVER, pIpStats->dwInDelivers);
 265         ConResPrintf(StdOut, IDS_IP_OUT_REQUEST, pIpStats->dwOutRequests);
 266         ConResPrintf(StdOut, IDS_IP_ROUTE_DISCARD, pIpStats->dwRoutingDiscards);
 267         ConResPrintf(StdOut, IDS_IP_DISCARD_OUT_PACK, pIpStats->dwOutDiscards);
 268         ConResPrintf(StdOut, IDS_IP_OUT_PACKET_NO_ROUTE, pIpStats->dwOutNoRoutes);
 269         ConResPrintf(StdOut, IDS_IP_REASSEMBLE_REQUIRED, pIpStats->dwReasmReqds);
 270         ConResPrintf(StdOut, IDS_IP_REASSEMBLE_SUCCESS, pIpStats->dwReasmOks);
 271         ConResPrintf(StdOut, IDS_IP_REASSEMBLE_FAILURE, pIpStats->dwReasmFails);
 272         ConResPrintf(StdOut, IDS_IP_DATAG_FRAG_SUCCESS, pIpStats->dwFragOks);
 273         ConResPrintf(StdOut, IDS_IP_DATAG_FRAG_FAILURE, pIpStats->dwFragFails);
 274         ConResPrintf(StdOut, IDS_IP_DATAG_FRAG_CREATE, pIpStats->dwFragCreates);
 275     }
 276     else
 277     {
 278         DoFormatMessage(dwRetVal);
 279     }
 280
 281     HeapFree(GetProcessHeap(), 0, pIpStats);
 282 }
 283
 284 VOID ShowIcmpStatistics(VOID)
 285 {
 286     PMIB_ICMP pIcmpStats;
 287     DWORD dwRetVal;
 288
 289     pIcmpStats = (MIB_ICMP*) HeapAlloc(GetProcessHeap(), 0, sizeof(MIB_ICMP));
 290
 291     if ((dwRetVal = GetIcmpStatistics(pIcmpStats)) == NO_ERROR)
 292     {
 293         ConResPuts(StdOut, IDS_ICMP4_STAT_HEADER);
 294         ConResPuts(StdOut, IDS_ICMP_THEADER);
 295         ConResPrintf(StdOut, IDS_ICMP_MSG,
 296             pIcmpStats->stats.icmpInStats.dwMsgs, pIcmpStats->stats.icmpOutStats.dwMsgs);
 297         ConResPrintf(StdOut, IDS_ICMP_ERROR,
 298             pIcmpStats->stats.icmpInStats.dwErrors, pIcmpStats->stats.icmpOutStats.dwErrors);
 299         ConResPrintf(StdOut, IDS_ICMP_DEST_UNREACH,
 300             pIcmpStats->stats.icmpInStats.dwDestUnreachs, pIcmpStats->stats.icmpOutStats.dwDestUnreachs);
 301         ConResPrintf(StdOut, IDS_ICMP_TIME_EXCEED,
 302             pIcmpStats->stats.icmpInStats.dwTimeExcds, pIcmpStats->stats.icmpOutStats.dwTimeExcds);
 303         ConResPrintf(StdOut, IDS_ICMP_PARAM_PROBLEM,
 304             pIcmpStats->stats.icmpInStats.dwParmProbs, pIcmpStats->stats.icmpOutStats.dwParmProbs);
 305         ConResPrintf(StdOut, IDS_ICMP_SRC_QUENCHES,
 306             pIcmpStats->stats.icmpInStats.dwSrcQuenchs, pIcmpStats->stats.icmpOutStats.dwSrcQuenchs);
 307         ConResPrintf(StdOut, IDS_ICMP_REDIRECT,
 308             pIcmpStats->stats.icmpInStats.dwRedirects, pIcmpStats->stats.icmpOutStats.dwRedirects);
 309         ConResPrintf(StdOut, IDS_ICMP_ECHO,
 310             pIcmpStats->stats.icmpInStats.dwEchos, pIcmpStats->stats.icmpOutStats.dwEchos);
 311         ConResPrintf(StdOut, IDS_ICMP_ECHO_REPLY,
 312             pIcmpStats->stats.icmpInStats.dwEchoReps, pIcmpStats->stats.icmpOutStats.dwEchoReps);
 313         ConResPrintf(StdOut, IDS_ICMP_TIMESTAMP,
 314             pIcmpStats->stats.icmpInStats.dwTimestamps, pIcmpStats->stats.icmpOutStats.dwTimestamps);
 315         ConResPrintf(StdOut, IDS_ICMP_TIMESTAMP_REPLY,
 316             pIcmpStats->stats.icmpInStats.dwTimestampReps, pIcmpStats->stats.icmpOutStats.dwTimestampReps);
 317         ConResPrintf(StdOut, IDS_ICMP_ADDRESSS_MASK,
 318             pIcmpStats->stats.icmpInStats.dwAddrMasks, pIcmpStats->stats.icmpOutStats.dwAddrMasks);
 319         ConResPrintf(StdOut, IDS_ICMP_ADDRESSS_MASK_REPLY,
 320             pIcmpStats->stats.icmpInStats.dwAddrMaskReps, pIcmpStats->stats.icmpOutStats.dwAddrMaskReps);
 321     }
 322     else
 323     {
 324         DoFormatMessage(dwRetVal);
 325     }
 326
 327     HeapFree(GetProcessHeap(), 0, pIcmpStats);
 328
 329 }
 330
 331 VOID ShowTcpStatistics(VOID)
 332 {
 333     PMIB_TCPSTATS pTcpStats;
 334     DWORD dwRetVal;
 335
 336     pTcpStats = (MIB_TCPSTATS*) HeapAlloc(GetProcessHeap(), 0, sizeof(MIB_TCPSTATS));
 337
 338     if ((dwRetVal = GetTcpStatistics(pTcpStats)) == NO_ERROR)
 339     {
 340         ConResPuts(StdOut, IDS_TCP4_HEADER);
 341         ConResPrintf(StdOut, IDS_TCP_ACTIVE_OPEN, pTcpStats->dwActiveOpens);
 342         ConResPrintf(StdOut, IDS_TCP_PASS_OPEN, pTcpStats->dwPassiveOpens);
 343         ConResPrintf(StdOut, IDS_TCP_FAIL_CONNECT, pTcpStats->dwAttemptFails);
 344         ConResPrintf(StdOut, IDS_TCP_RESET_CONNECT, pTcpStats->dwEstabResets);
 345         ConResPrintf(StdOut, IDS_TCP_CURRENT_CONNECT, pTcpStats->dwCurrEstab);
 346         ConResPrintf(StdOut, IDS_TCP_SEG_RECEIVE, pTcpStats->dwInSegs);
 347         ConResPrintf(StdOut, IDS_TCP_SEG_SENT, pTcpStats->dwOutSegs);
 348         ConResPrintf(StdOut, IDS_TCP_SEG_RETRANSMIT, pTcpStats->dwRetransSegs);
 349     }
 350     else
 351     {
 352         DoFormatMessage(dwRetVal);
 353     }
 354
 355     HeapFree(GetProcessHeap(), 0, pTcpStats);
 356 }
 357
 358 VOID ShowUdpStatistics(VOID)
 359 {
 360     PMIB_UDPSTATS pUdpStats;
 361     DWORD dwRetVal;
 362
 363     pUdpStats = (MIB_UDPSTATS*) HeapAlloc(GetProcessHeap(), 0, sizeof(MIB_UDPSTATS));
 364
 365     if ((dwRetVal = GetUdpStatistics(pUdpStats)) == NO_ERROR)
 366     {
 367         ConResPuts(StdOut, IDS_UDP_IP4_HEADER);
 368         ConResPrintf(StdOut, IDS_UDP_DATAG_RECEIVE, pUdpStats->dwInDatagrams);
 369         ConResPrintf(StdOut, IDS_UDP_NO_PORT, pUdpStats->dwNoPorts);
 370         ConResPrintf(StdOut, IDS_UDP_RECEIVE_ERROR, pUdpStats->dwInErrors);
 371         ConResPrintf(StdOut, IDS_UDP_DATAG_SEND, pUdpStats->dwOutDatagrams);
 372     }
 373     else
 374     {
 375         DoFormatMessage(dwRetVal);
 376     }
 377
 378     HeapFree(GetProcessHeap(), 0, pUdpStats);
 379 }
 380
 381 VOID ShowEthernetStatistics(VOID)
 382 {
 383     PMIB_IFTABLE pIfTable;
 384     DWORD dwSize = 0;
 385     DWORD dwRetVal = 0;
 386
 387     pIfTable = (MIB_IFTABLE*) HeapAlloc(GetProcessHeap(), 0, sizeof(MIB_IFTABLE));
 388
 389     if (GetIfTable(pIfTable, &dwSize, 0) == ERROR_INSUFFICIENT_BUFFER)
 390     {
 391         HeapFree(GetProcessHeap(), 0, pIfTable);
 392         pIfTable = (MIB_IFTABLE*) HeapAlloc(GetProcessHeap(), 0, dwSize);
 393
 394         if ((dwRetVal = GetIfTable(pIfTable, &dwSize, 0)) == NO_ERROR)
 395         {
 396             ConResPuts(StdOut, IDS_ETHERNET_INTERFACE_STAT);
 397             ConResPuts(StdOut, IDS_ETHERNET_THEADER);
 398             ConResPrintf(StdOut, IDS_ETHERNET_BYTES,
 399                 pIfTable->table[0].dwInOctets, pIfTable->table[0].dwOutOctets);
 400             ConResPrintf(StdOut, IDS_ETHERNET_UNICAST_PACKET,
 401                 pIfTable->table[0].dwInUcastPkts, pIfTable->table[0].dwOutUcastPkts);
 402             ConResPrintf(StdOut, IDS_ETHERNET_NON_UNICAST_PACKET,
 403                 pIfTable->table[0].dwInNUcastPkts, pIfTable->table[0].dwOutNUcastPkts);
 404             ConResPrintf(StdOut, IDS_ETHERNET_DISCARD,
 405                 pIfTable->table[0].dwInDiscards, pIfTable->table[0].dwOutDiscards);
 406             ConResPrintf(StdOut, IDS_ETHERNET_ERROR,
 407                 pIfTable->table[0].dwInErrors, pIfTable->table[0].dwOutErrors);
 408             ConResPrintf(StdOut, IDS_ETHERNET_UNKNOWN,
 409                 pIfTable->table[0].dwInUnknownProtos);
 410         }
 411         else
 412         {
 413             DoFormatMessage(dwRetVal);
 414         }
 415     }
 416     HeapFree(GetProcessHeap(), 0, pIfTable);
 417 }
 418
 419 VOID ShowTcpTable(VOID)
 420 {
 421     PMIB_TCPTABLE_OWNER_PID tcpTable;
 422     DWORD error, dwSize;
 423     DWORD i;
 424     CHAR HostIp[HOSTNAMELEN], HostPort[PORTNAMELEN];
 425     CHAR RemoteIp[HOSTNAMELEN], RemotePort[PORTNAMELEN];
 426     CHAR Host[ADDRESSLEN];
 427     CHAR Remote[ADDRESSLEN];
 428     CHAR PID[64];
 429
 430     /* Get the table of TCP endpoints */
 431     dwSize = sizeof (MIB_TCPTABLE_OWNER_PID);
 432     /* Should also work when we get new connections between 2 GetTcpTable()
 433      * calls: */
 434     do
 435     {
 436         tcpTable = (PMIB_TCPTABLE_OWNER_PID) HeapAlloc(GetProcessHeap(), 0, dwSize);
 437         error = GetExtendedTcpTable(tcpTable, &dwSize, TRUE, AF_INET, TCP_TABLE_OWNER_PID_ALL, 0);
 438         if ( error != NO_ERROR )
 439             HeapFree(GetProcessHeap(), 0, tcpTable);
 440     }
 441     while  ( error == ERROR_INSUFFICIENT_BUFFER );
 442
 443     if (error != NO_ERROR)
 444     {
 445         ConResPrintf(StdErr, IDS_ERROR_TCP_SNAPSHOT);
 446         DoFormatMessage(error);
 447         exit(EXIT_FAILURE);
 448     }
 449
 450     /* Dump the TCP table */
 451     for (i = 0; i < tcpTable->dwNumEntries; i++)
 452     {
 453         /* If we aren't showing all connections, only display established, close wait
 454          * and time wait. This is the default output for netstat */
 455         if (bDoShowAllCons || (tcpTable->table[i].dwState ==  MIB_TCP_STATE_ESTAB)
 456             || (tcpTable->table[i].dwState ==  MIB_TCP_STATE_CLOSE_WAIT)
 457             || (tcpTable->table[i].dwState ==  MIB_TCP_STATE_TIME_WAIT))
 458         {
 459             /* I've split this up so it's easier to follow */
 460             GetIpHostName(TRUE, tcpTable->table[i].dwLocalAddr, HostIp, sizeof(HostIp));
 461             GetPortName(tcpTable->table[i].dwLocalPort, "tcp", HostPort, sizeof(HostPort));
 462             sprintf(Host, "%s:%s", HostIp, HostPort);
 463
 464             if (tcpTable->table[i].dwState ==  MIB_TCP_STATE_LISTEN)
 465             {
 466                 sprintf(Remote, "%s:0", HostIp);
 467             }
 468             else
 469             {
 470                 GetIpHostName(FALSE, tcpTable->table[i].dwRemoteAddr, RemoteIp, sizeof(RemoteIp));
 471                 GetPortName(tcpTable->table[i].dwRemotePort, "tcp", RemotePort, sizeof(RemotePort));
 472                 sprintf(Remote, "%s:%s", RemoteIp, RemotePort);
 473             }
 474
 475             if (bDoShowProcessId)
 476             {
 477                 sprintf(PID, "%ld", tcpTable->table[i].dwOwningPid);
 478             }
 479             else
 480             {
 481                 PID[0] = 0;
 482             }
 483
 484             ConPrintf(StdOut, L"  %-6s %-22S %-22S %-11s %S\n", L"TCP",
 485                       Host, Remote, TcpState[tcpTable->table[i].dwState], PID);
 486         }
 487     }
 488     HeapFree(GetProcessHeap(), 0, tcpTable);
 489 }
 490
 491 VOID ShowUdpTable(VOID)
 492 {
 493     PMIB_UDPTABLE_OWNER_PID udpTable;
 494     DWORD error, dwSize;
 495     DWORD i;
 496     CHAR HostIp[HOSTNAMELEN], HostPort[PORTNAMELEN];
 497     CHAR Host[ADDRESSLEN];
 498     CHAR PID[64];
 499
 500     /* Get the table of UDP endpoints */
 501     dwSize = 0;
 502     error = GetExtendedUdpTable(NULL, &dwSize, TRUE, AF_INET, UDP_TABLE_OWNER_PID, 0);
 503     if (error != ERROR_INSUFFICIENT_BUFFER)
 504     {
 505         ConResPuts(StdErr, IDS_ERROR_UDP_ENDPOINT);
 506         DoFormatMessage(error);
 507         exit(EXIT_FAILURE);
 508     }
 509     udpTable = (PMIB_UDPTABLE_OWNER_PID) HeapAlloc(GetProcessHeap(), 0, dwSize);
 510     error = GetExtendedUdpTable(udpTable, &dwSize, TRUE, AF_INET, UDP_TABLE_OWNER_PID, 0);
 511     if (error)
 512     {
 513         ConResPuts(StdErr, IDS_ERROR_UDP_ENDPOINT_TABLE);
 514         DoFormatMessage(error);
 515         HeapFree(GetProcessHeap(), 0, udpTable);
 516         exit(EXIT_FAILURE);
 517     }
 518
 519     /* Dump the UDP table */
 520     for (i = 0; i < udpTable->dwNumEntries; i++)
 521     {
 522
 523         /* I've split this up so it's easier to follow */
 524         GetIpHostName(TRUE, udpTable->table[i].dwLocalAddr, HostIp, sizeof(HostIp));
 525         GetPortName(udpTable->table[i].dwLocalPort, "tcp", HostPort, sizeof(HostPort));
 526
 527         sprintf(Host, "%s:%s", HostIp, HostPort);
 528
 529         if (bDoShowProcessId)
 530         {
 531             sprintf(PID, "%ld", udpTable->table[i].dwOwningPid);
 532         }
 533         else
 534         {
 535             PID[0] = 0;
 536         }
 537
 538         ConPrintf(StdOut, L"  %-6s %-22S %-34s %S\n", L"UDP", Host, L"*:*", PID);
 539     }
 540
 541     HeapFree(GetProcessHeap(), 0, udpTable);
 542 }
 543
 544 /*
 545  * Translate port numbers into their text equivalent if there is one
 546  */
 547 PCHAR
 548 GetPortName(UINT Port, PCSTR Proto, CHAR Name[], INT NameLen)
 549 {
 550     struct servent *pServent;
 551
 552     if (bDoShowNumbers)
 553     {
 554         sprintf(Name, "%d", htons((WORD)Port));
 555         return Name;
 556     }
 557     /* Try to translate to a name */
 558     if ((pServent = getservbyport(Port, Proto)))
 559         strcpy(Name, pServent->s_name );
 560     else
 561         sprintf(Name, "%d", htons((WORD)Port));
 562     return Name;
 563 }
 564
 565 /*
 566  * convert addresses into dotted decimal or hostname
 567  */
 568 PCHAR
 569 GetIpHostName(BOOL Local, UINT IpAddr, CHAR Name[], INT NameLen)
 570 {
 571 //  struct hostent *phostent;
 572     UINT nIpAddr;
 573
 574     /* display dotted decimal */
 575     nIpAddr = htonl(IpAddr);
 576     if (bDoShowNumbers) {
 577         sprintf(Name, "%d.%d.%d.%d",
 578             (nIpAddr >> 24) & 0xFF,
 579             (nIpAddr >> 16) & 0xFF,
 580             (nIpAddr >> 8) & 0xFF,
 581             (nIpAddr) & 0xFF);
 582         return Name;
 583     }
 584
 585     Name[0] = '\0';
 586
 587     /* try to resolve the name */
 588     if (!IpAddr) {
 589         if (!Local) {
 590             sprintf(Name, "%d.%d.%d.%d",
 591                 (nIpAddr >> 24) & 0xFF,
 592                 (nIpAddr >> 16) & 0xFF,
 593                 (nIpAddr >> 8) & 0xFF,
 594                 (nIpAddr) & 0xFF);
 595         } else {
 596             if (gethostname(Name, NameLen) != 0)
 597                 DoFormatMessage(WSAGetLastError());
 598         }
 599     } else if (IpAddr == 0x0100007f) {
 600         if (Local) {
 601             if (gethostname(Name, NameLen) != 0)
 602                 DoFormatMessage(WSAGetLastError());
 603         } else {
 604             strncpy(Name, "localhost", 10);
 605         }
 606 //  } else if (phostent = gethostbyaddr((char*)&ipaddr, sizeof(nipaddr), PF_INET)) {
 607 //      strcpy(name, phostent->h_name);
 608     } else {
 609         sprintf(Name, "%d.%d.%d.%d",
 610             ((nIpAddr >> 24) & 0x000000FF),
 611             ((nIpAddr >> 16) & 0x000000FF),
 612             ((nIpAddr >> 8) & 0x000000FF),
 613             ((nIpAddr) & 0x000000FF));
 614     }
 615     return Name;
 616 }
 617
 618 /*
 619  *
 620  * Parse command line parameters and set any options
 621  * Run display output, looping over set intervals if a number is given
 622  *
 623  */
 624 int wmain(int argc, wchar_t *argv[])
 625 {
 626     WSADATA wsaData;
 627
 628     /* Initialize the Console Standard Streams */
 629     ConInitStdStreams();
 630
 631     if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0)
 632     {
 633         ConResPrintf(StdErr, IDS_ERROR_WSA_START, WSAGetLastError());
 634         return -1;
 635     }
 636
 637     if (ParseCmdline(argc, argv))
 638         return -1;
 639
 640     if (bLoopOutput)
 641     {
 642         while (1)
 643         {
 644             if (DisplayOutput())
 645                 return -1;
 646             Sleep(Interval*1000);
 647         }
 648     }
 649
 650     if (DisplayOutput())
 651         return -1;
 652     else
 653         return 0;
 654 }