ipconfig源码

/*
* ipconfig - display IP stack parameters.
*
* This source code is in the PUBLIC DOMAIN and has NO WARRANTY.
*
* Robert Dickenson <robd@reactos.org>, 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.dll

GetAdapterOrderMap
GetInterfaceInfo
GetIpStatsFromStack
NhGetInterfaceNameFromGuid
NhpAllocateAndGetInterfaceInfoFromStack

*/

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-C0-00-08
3        DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
5        IP Address. . . . . . . . . . . . : 192.168.136.1
Subnet Mask . . . . . . . . . . . : 255.255.255.0
7        Default Gateway . . . . . . . . . :
8        DHCP Server . . . . . . . . . . . : 192.168.136.254
DNS Servers . . . . . . . . . . . :
a        Lease Obtained. . . . . . . . . . : Monday, 30 December 2002 5:56:53 PM
b        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;
}