ipconfig源码

/* * ipconfig - display IP stack parameters. * * This source code is in the PUBLIC DOMAIN and has NO WARRANTY. * * Robert Dickenson <[e-mail]>, August 15, 2002. */#include <stdio.h>#include <windows.h>#include <tchar.h>#include <time.h>#include <iptypes.h>#include <ipexport.h>#include <iphlpapi.h>#pragma comment(lib,"iphlpapi")/////////////////////////////////////////////////////////////////////////////////* imported from iphlpapi.dllGetAdapterOrderMapGetInterfaceInfoGetIpStatsFromStackNhGetInterfaceNameFromGuidNhpAllocateAndGetInterfaceInfoFromStack */static TCHAR* GetNodeTypeName(int nNodeType){    switch (nNodeType) {    case 0:  return _T("zero");    case 1:  return _T("one");    case 2:  return _T("two");    case 3:  return _T("three");    case 4:  return _T("mixed");    default: return _T("unknown");    }}static void ShowNetworkFixedInfo(){    FIXED_INFO* pFixedInfo = NULL;    ULONG OutBufLen = 0;    DWORD result;    result = GetNetworkParams(NULL, &OutBufLen);    if (result == ERROR_BUFFER_OVERFLOW) {        pFixedInfo = (FIXED_INFO*)malloc(OutBufLen);        if (!pFixedInfo) {            _tprintf(_T("ERROR: failed to allocate 0x%08X bytes of memory\n"), OutBufLen);            return;        }    } else {        _tprintf(_T("ERROR: GetNetworkParams() failed to report required buffer size.\n"));        return;    }    result = GetNetworkParams(pFixedInfo, &OutBufLen);    if (result == ERROR_SUCCESS) {        IP_ADDR_STRING* pIPAddr;             printf("\tHostName. . . . . . . . . . . : %s\n",  pFixedInfo->HostName);             printf("\tDomainName. . . . . . . . . . : %s\n",  pFixedInfo->DomainName);//             printf("\tDNS Servers . . . . . . . . . : %s\n",  pFixedInfo->DnsServerList.IpAddress.String);             pIPAddr = pFixedInfo->DnsServerList.Next;             while (pIPAddr) {                 printf("\t\t\t\t      : %s\n",  pIPAddr->IpAddress.String);                 pIPAddr = pIPAddr->Next;             }//        _tprintf(_T("\tNodeType. . . . . . . . . . . : %d (%s)\n"), pFixedInfo->NodeType, GetNodeTypeName(pFixedInfo->NodeType));             printf("\tScopeId . . . . . . . . . . . : %s\n",  pFixedInfo->ScopeId);        _tprintf(_T("\tEnableRouting . . . . . . . . : %s\n"), pFixedInfo->EnableRouting ? _T("yes") : _T("no"));        _tprintf(_T("\tEnableProxy . . . . . . . . . : %s\n"), pFixedInfo->EnableProxy ? _T("yes") : _T("no"));        _tprintf(_T("\tEnableDns . . . . . . . . . . : %s\n"), pFixedInfo->EnableDns ? _T("yes") : _T("no"));        _tprintf(_T("\n"));        //_tprintf(_T("\n"),);        //_tprintf(_T("GetNetworkParams() returned with %d\n"), pIfTable->NumAdapters);//      _tprintf(_T("\tConnection specific DNS suffix: %s\n"), pFixedInfo->EnableDns ? _T("yes") : _T("no"));    } else {        switch (result) {        case ERROR_BUFFER_OVERFLOW:            _tprintf(_T("The buffer size indicated by the pOutBufLen parameter is too small to hold the adapter information. The pOutBufLen parameter points to the required size\n"));            break;        case ERROR_INVALID_PARAMETER:            _tprintf(_T("The pOutBufLen parameter is NULL, or the calling process does not have read/write access to the memory pointed to by pOutBufLen, or the calling process does not have write access to the memory pointed to by the pAdapterInfo parameter\n"));            break;        case ERROR_NO_DATA:            _tprintf(_T("No adapter information exists for the local computer\n"));            break;        case ERROR_NOT_SUPPORTED:            _tprintf(_T("This function is not supported on the operating system in use on the local system\n"));            break;        default:            _tprintf(_T("0x%08X - Use FormatMessage to obtain the message string for the returned error\n"), result);            break;        }    }}static void ShowNetworkInterfaces(){    IP_INTERFACE_INFO* pIfTable = NULL;    DWORD result;    DWORD dwNumIf;    DWORD dwOutBufLen = 0;    if ((result = GetNumberOfInterfaces(&dwNumIf)) != NO_ERROR) {        _tprintf(_T("GetNumberOfInterfaces() failed with code 0x%08X - Use FormatMessage to obtain the message string for the returned error\n"), result);        return;    } else {        _tprintf(_T("GetNumberOfInterfaces() returned %d\n"), dwNumIf);    }    result = GetInterfaceInfo(pIfTable, &dwOutBufLen);//    dwOutBufLen = sizeof(IP_INTERFACE_INFO) + dwNumIf * sizeof(IP_ADAPTER_INDEX_MAP);//    _tprintf(_T("GetNumberOfInterfaces() returned %d, dwOutBufLen %d\n"), dwNumIf, dwOutBufLen);//    _tprintf(_T("sizeof(IP_INTERFACE_INFO) %d, sizeof(IP_ADAPTER_INDEX_MAP) %d\n"), sizeof(IP_INTERFACE_INFO), sizeof(IP_ADAPTER_INDEX_MAP));    pIfTable = (IP_INTERFACE_INFO*)malloc(dwOutBufLen);    if (!pIfTable) {        _tprintf(_T("ERROR: failed to allocate 0x%08X bytes of memory\n"), dwOutBufLen);        return;    }/*typedef struct _IP_ADAPTER_INDEX_MAP {  ULONG Index;                     // adapter index   WCHAR Name[MAX_ADAPTER_NAME];    // name of the adapter } IP_ADAPTER_INDEX_MAP, * PIP_ADAPTER_INDEX_MAP;typedef struct _IP_INTERFACE_INFO {  LONG NumAdapters;                 // number of adapters in array   IP_ADAPTER_INDEX_MAP Adapter[1];  // adapter indices and names } IP_INTERFACE_INFO,*PIP_INTERFACE_INFO; */    result = GetInterfaceInfo(pIfTable, &dwOutBufLen);    if (result == NO_ERROR) {        int i;        _tprintf(_T("GetInterfaceInfo() returned with %d adaptor entries\n"), pIfTable->NumAdapters);        for (i = 0; i < pIfTable->NumAdapters; i++) {           wprintf(L"[%d] %s\n", i + 1, pIfTable->Adapter[i].Name);           //wprintf(L"[%d] %s\n", pIfTable->Adapter[i].Index, pIfTable->Adapter[i].Name);//  \DEVICE\TCPIP_{DB0E61C1-3498-4C5F-B599-59CDE8A1E357}//  \DEVICE\TCPIP_{BD445697-0945-4591-AE7F-2AB0F383CA87}//  \DEVICE\TCPIP_{6D87DC08-6BC5-4E78-AB5F-18CAB785CFFE}//HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NetBT\Parameters\Interfaces\Tcpip_{DB0E61C1-3498-4C5F-B599-59CDE8A1E357}        }    } else {        switch (result) {        case ERROR_INVALID_PARAMETER:            _tprintf(_T("The dwOutBufLen parameter is NULL, or GetInterfaceInterface is unable to write to the memory pointed to by the dwOutBufLen parameter\n"));            break;        case ERROR_INSUFFICIENT_BUFFER:            _tprintf(_T("The buffer pointed to by the pIfTable parameter is not large enough. The required size is returned in the DWORD variable pointed to by the dwOutBufLen parameter\n"));            _tprintf(_T("\tdwOutBufLen: %d\n"), dwOutBufLen);            break;        case ERROR_NOT_SUPPORTED:            _tprintf(_T("This function is not supported on the operating system in use on the local system\n"));            break;        default:            _tprintf(_T("0x%08X - Use FormatMessage to obtain the message string for the returned error\n"), result);            break;        }    }    free(pIfTable);}/*typedef struct _IP_ADAPTER_INFO {  struct _IP_ADAPTER_INFO* Next;  DWORD ComboIndex;  char AdapterName[MAX_ADAPTER_NAME_LENGTH + 4];1  char Description[MAX_ADAPTER_DESCRIPTION_LENGTH + 4];  UINT AddressLength;2  BYTE Address[MAX_ADAPTER_ADDRESS_LENGTH];  DWORD Index;  UINT Type;3  UINT DhcpEnabled;5  PIP_ADDR_STRING CurrentIpAddress;  IP_ADDR_STRING IpAddressList;7  IP_ADDR_STRING GatewayList;8  IP_ADDR_STRING DhcpServer;  BOOL HaveWins;  IP_ADDR_STRING PrimaryWinsServer;  IP_ADDR_STRING SecondaryWinsServer;a  time_t LeaseObtained;b  time_t LeaseExpires; } IP_ADAPTER_INFO, *PIP_ADAPTER_INFO; *//*Ethernet adapter VMware Virtual Ethernet Adapter (Network Address Translation (NAT) for VMnet8):        Connection-specific DNS Suffix  . :1        Description . . . . . . . . . . . : VMware Virtual Ethernet Adapter (Network Address Translation (NAT) for VMnet8)2        Physical Address. . . . . . . . . : 00-50-56-C0-00-083        DHCP Enabled. . . . . . . . . . . : Yes        Autoconfiguration Enabled . . . . : Yes5        IP Address. . . . . . . . . . . . : 192.168.136.1        Subnet Mask . . . . . . . . . . . : 255.255.255.07        Default Gateway . . . . . . . . . :8        DHCP Server . . . . . . . . . . . : 192.168.136.254        DNS Servers . . . . . . . . . . . :a        Lease Obtained. . . . . . . . . . : Monday, 30 December 2002 5:56:53 PMb        Lease Expires . . . . . . . . . . : Monday, 30 December 2002 6:26:53 PM */static void ShowAdapterInfo(){    IP_ADAPTER_INFO* pAdaptorInfo;    ULONG ulOutBufLen;    DWORD dwRetVal;//char *tmp_str=(char*)(malloc(sizeof(char*)));    _tprintf(_T("\nAdaptor Information\t\n"));    pAdaptorInfo = (IP_ADAPTER_INFO*)GlobalAlloc(GPTR, sizeof(IP_ADAPTER_INFO));    ulOutBufLen = sizeof(IP_ADAPTER_INFO);    if (ERROR_BUFFER_OVERFLOW == GetAdaptersInfo(pAdaptorInfo, &ulOutBufLen)) {        GlobalFree(pAdaptorInfo);        pAdaptorInfo = (IP_ADAPTER_INFO*)GlobalAlloc(GPTR, ulOutBufLen);    }    if (dwRetVal = GetAdaptersInfo(pAdaptorInfo, &ulOutBufLen)) {        _tprintf(_T("Call to GetAdaptersInfo failed. Return Value: %08x\n"), dwRetVal);    } else {//IP_ADDR_STRING* pIPAddr;        while (pAdaptorInfo) {            printf("  AdapterName: %s\n", pAdaptorInfo->AdapterName);            printf("  Description: %s\n", pAdaptorInfo->Description);/**pIPAddr = pAdaptorInfo->CurrentIpAddress->Next;while (pIPAddr) {printf("\t\t\t\t      : %s\n",  pIPAddr->IpAddress.String);pIPAddr = pIPAddr->Next;}*/printf("\n");            pAdaptorInfo = pAdaptorInfo->Next;        }    }//free(tmp_str);}const char szUsage[] = { "USAGE:\n" \    "   ipconfig [/? | /all | /release [adapter] | /renew [adapter]\n" \    "            | /flushdns | /registerdns\n" \    "            | /showclassid adapter\n" \    "            | /showclassid adapter\n" \    "            | /setclassid adapter [classidtoset] ]\n" \    "\n" \    "adapter    Full name or pattern with '*' and '?' to 'match',\n" \    "           * matches any character, ? matches one character.\n" \    "   Options\n" \    "       /?           Display this help message.\n" \    "       /all         Display full configuration information.\n" \    "       /release     Release the IP address for the specified adapter.\n" \    "       /renew       Renew the IP address for the specified adapter.\n" \    "       /flushdns    Purges the DNS Resolver cache.\n" \    "       /registerdns Refreshes all DHCP leases and re-registers DNS names\n" \    "       /displaydns  Display the contents of the DNS Resolver Cache.\n" \    "       /showclassid Displays all the dhcp class IDs allowed for adapter.\n" \    "       /setclassid  Modifies the dhcp class id.\n" \    "\n" \    "The default is to display only the IP address, subnet mask and\n" \    "default gateway for each adapter bound to TCP/IP.\n"};/*    "\n" \    "For Release and Renew, if no adapter name is specified, then the IP address\n" \    "leases for all adapters bound to TCP/IP will be released or renewed.\n" \    "\n" \    "For SetClassID, if no class id is specified, then the classid is removed.\n" \    "\n" \    "Examples:\n" \    "    > ipconfig                       ... Show information.\n" \    "    > ipconfig /all                  ... Show detailed information\n" \    "    > ipconfig /renew                ... renew all adapaters\n" \    "    > ipconfig /renew EL*            ... renew adapters named EL....\n" \    "    > ipconfig /release *ELINK?21*   ... release all matching adapters,\n" \                                         eg. ELINK-21, myELELINKi21adapter.\n" */static void usage(void){        fputs(szUsage, stderr);}int main(int argc, char *argv[]){    // 10.0.0.100    // As of build 0.0.20 this is hardcoded in the ip stack    if (argc > 1) {        usage();        return 1;    }    _tprintf(_T("ReactOS IP Configuration\n"));    ShowNetworkFixedInfo();    ShowNetworkInterfaces();    ShowAdapterInfo();    return 0;}