MIB_UNICASTIPADDRESS_TABLE structure (netioapi.h)
The MIB_UNICASTIPADDRESS_TABLE structure contains a table of unicast IP address entries.
Syntax
typedef struct _MIB_UNICASTIPADDRESS_TABLE {
ULONG NumEntries;
MIB_UNICASTIPADDRESS_ROW Table[ANY_SIZE];
} MIB_UNICASTIPADDRESS_TABLE, *PMIB_UNICASTIPADDRESS_TABLE;
Members
NumEntries
A value that specifies the number of unicast IP address entries in the array.
Table[ANY_SIZE]
An array of MIB_UNICASTIPADDRESS_ROW structures containing unicast IP address entries.
Remarks
The MIB_UNICASTIPADDRESS_TABLE structure is defined on Windows Vista and later.
The GetUnicastIpAddressTable function enumerates the unicast IP addresses on a local system and returns this information in an MIB_UNICASTIPADDRESS_TABLE structure.
The MIB_UNICASTIPADDRESS_TABLE structure may contain padding for alignment between the NumEntries member and the first MIB_UNICASTIPADDRESS_ROW array entry in the Table member. Padding for alignment may also be present between the MIB_UNICASTIPADDRESS_ROW array entries in the Table member. Any access to a MIB_UNICASTIPADDRESS_ROW array entry should assume padding may exist.
Examples
The following example retrieves a unicast IP address table and prints some values from each of the retrieved MIB_UNICASTIPADDRESS_ROW structures.
#ifndef UNICODE
#define UNICODE
#endif
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
#include <Windows.h.>
#include <winsock2.h>
#include <ws2tcpip.h>
#include <ws2ipdef.h>
#include <iphlpapi.h>
#include <stdio.h>
#include <stdlib.h>
// Need to link with Iphlpapi.lib and Ws2_32.lib
#pragma comment (lib, "iphlpapi.lib")
#pragma comment (lib, "Ws2_32.lib")
int __cdecl wmain()
{
// Declare and initialize variables
unsigned int i;
DWORD Result = 0;
WCHAR Ipv4String[16] = { 0 };
WCHAR Ipv6String[46] = { 0 };
PMIB_UNICASTIPADDRESS_TABLE pipTable = NULL;
Result = GetUnicastIpAddressTable(AF_UNSPEC, &pipTable);
if (Result != NO_ERROR) {
wprintf(L"GetUnicastIpAddressTable returned error: %ld\n", Result);
exit(1);
}
// Print some variables from the rows in the table
wprintf(L"Number of table entries: %d\n\n", pipTable->NumEntries);
for (i = 0; i < pipTable->NumEntries; i++) {
wprintf(L"AddressFamily[%d]:\t\t ", i);
switch (pipTable->Table[i].Address.si_family) {
case AF_INET:
wprintf(L"IPv4\n");
if (InetNtopW
(AF_INET, &pipTable->Table[i].Address.Ipv4.sin_addr, Ipv4String,
16) != NULL)
wprintf(L"IPv4 Address:\t\t\t %ws\n", Ipv4String);
break;
case AF_INET6:
wprintf(L"IPv6\n");
if (InetNtopW
(AF_INET6, &pipTable->Table[i].Address.Ipv6.sin6_addr,
Ipv6String, 46) != NULL)
wprintf(L"IPv6 Address:\t\t\t %ws\n", Ipv6String);
break;
default:
wprintf(L"Other: %d\n", pipTable->Table[i].Address.si_family);
break;
}
wprintf(L"Interface LUID NetLuidIndex[%d]: %lu\n",
i, pipTable->Table[i].InterfaceLuid.Info.NetLuidIndex);
wprintf(L"Interface LUID IfType[%d]:\t ", i);
switch (pipTable->Table[i].InterfaceLuid.Info.IfType) {
case IF_TYPE_OTHER:
wprintf(L"Other\n");
break;
case IF_TYPE_ETHERNET_CSMACD:
wprintf(L"Ethernet\n");
break;
case IF_TYPE_ISO88025_TOKENRING:
wprintf(L"Token ring\n");
break;
case IF_TYPE_PPP:
wprintf(L"PPP\n");
break;
case IF_TYPE_SOFTWARE_LOOPBACK:
wprintf(L"Software loopback\n");
break;
case IF_TYPE_ATM:
wprintf(L"ATM\n");
break;
case IF_TYPE_IEEE80211:
wprintf(L"802.11 wireless\n");
break;
case IF_TYPE_TUNNEL:
wprintf(L"Tunnel encapsulation\n");
break;
case IF_TYPE_IEEE1394:
wprintf(L"IEEE 1394 (Firewire)\n");
break;
default:
wprintf(L"Unknown: %d\n",
pipTable->Table[i].InterfaceLuid.Info.IfType);
break;
}
wprintf(L"Interface Index[%d]:\t\t %lu\n",
i, pipTable->Table[i].InterfaceIndex);
wprintf(L"Prefix Origin[%d]:\t\t ", i);
switch (pipTable->Table[i].PrefixOrigin) {
case IpPrefixOriginOther:
wprintf(L"IpPrefixOriginOther\n");
break;
case IpPrefixOriginManual:
wprintf(L"IpPrefixOriginManual\n");
break;
case IpPrefixOriginWellKnown:
wprintf(L"IpPrefixOriginWellKnown\n");
break;
case IpPrefixOriginDhcp:
wprintf(L"IpPrefixOriginDhcp\n");
break;
case IpPrefixOriginRouterAdvertisement:
wprintf(L"IpPrefixOriginRouterAdvertisement\n");
break;
case IpPrefixOriginUnchanged:
wprintf(L"IpPrefixOriginUnchanged\n");
break;
default:
wprintf(L"Unknown: %d\n", pipTable->Table[i].PrefixOrigin);
break;
}
wprintf(L"Suffix Origin[%d]:\t\t ", i);
switch (pipTable->Table[i].SuffixOrigin) {
case IpSuffixOriginOther:
wprintf(L"IpSuffixOriginOther\n");
break;
case IpSuffixOriginManual:
wprintf(L"IpSuffixOriginManual\n");
break;
case IpSuffixOriginWellKnown:
wprintf(L"IpSuffixOriginWellKnown\n");
break;
case IpSuffixOriginDhcp:
wprintf(L"IpSuffixOriginDhcp\n");
break;
case IpSuffixOriginLinkLayerAddress:
wprintf(L"IpSuffixOriginLinkLayerAddress\n");
break;
case IpSuffixOriginRandom:
wprintf(L"IpSuffixOriginRandom\n");
break;
case IpSuffixOriginUnchanged:
wprintf(L"IpSuffixOriginUnchanged\n");
break;
default:
wprintf(L"Unknown: %d\n", pipTable->Table[i].SuffixOrigin);
break;
}
wprintf(L"Valid Lifetime[%d]:\t\t 0x%x (%u)\n", i,
pipTable->Table[i].ValidLifetime,
pipTable->Table[i].ValidLifetime);
wprintf(L"Preferred Lifetime[%d]:\t\t 0x%x (%u)\n", i,
pipTable->Table[i].PreferredLifetime,
pipTable->Table[i].PreferredLifetime);
wprintf(L"OnLink PrefixLength[%d]:\t\t %lu\n", i,
pipTable->Table[i].OnLinkPrefixLength);
wprintf(L"Skip As Source[%d]:\t\t ", i);
if (pipTable->Table[i].SkipAsSource)
wprintf(L"Yes\n");
else
wprintf(L"No\n");
wprintf(L"Dad State[%d]:\t\t\t ", i);
switch (pipTable->Table[i].DadState) {
case IpDadStateInvalid:
wprintf(L"IpDadStateInvalid\n");
break;
case IpDadStateTentative:
wprintf(L"IpDadStateTentative\n");
break;
case IpDadStateDuplicate:
wprintf(L"IpDadStateDuplicate\n");
break;
case IpDadStateDeprecated:
wprintf(L"IpDadStateDeprecated\n");
break;
case IpDadStatePreferred:
wprintf(L"IpDadStatePreferred\n");
break;
default:
wprintf(L"Unknown: %d\n", pipTable->Table[i].DadState);
break;
}
wprintf(L"\n");
}
if (pipTable != NULL) {
FreeMibTable(pipTable);
pipTable = NULL;
}
exit(0);
}
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Vista [desktop apps only] |
| Minimum supported server | Windows Server 2008 [desktop apps only] |
| Header | netioapi.h (include Iphlpapi.h) |
See also
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