| 1 | #include <winsock2.h>
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| 2 | #include <ws2tcpip.h>
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| 3 | #include <iphlpapi.h>
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| 4 | #include <stdio.h>
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| 5 |
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| 6 | int __cdecl main()
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| 7 | {
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| 8 | int i;
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| 9 |
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| 10 | /* Variables used by GetIpAddrTable */
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| 11 | PMIB_IPADDRTABLE pIPAddrTable;
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| 12 | DWORD dwSize = 0;
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| 13 | DWORD dwRetVal = 0;
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| 14 | IN_ADDR IPAddr;
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| 15 |
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| 16 | /* Variables used to return error message */
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| 17 | LPVOID lpMsgBuf;
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| 18 |
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| 19 | // Before calling AddIPAddress we use GetIpAddrTable to get
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| 20 | // an adapter to which we can add the IP.
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| 21 | pIPAddrTable = (MIB_IPADDRTABLE *) malloc(sizeof (MIB_IPADDRTABLE));
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| 22 |
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| 23 | if (pIPAddrTable) {
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| 24 | // Make an initial call to GetIpAddrTable to get the
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| 25 | // necessary size into the dwSize variable
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| 26 | if (GetIpAddrTable(pIPAddrTable, &dwSize, 0) ==
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| 27 | ERROR_INSUFFICIENT_BUFFER) {
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| 28 | free(pIPAddrTable);
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| 29 | pIPAddrTable = (MIB_IPADDRTABLE *) malloc(dwSize);
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| 30 |
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| 31 | }
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| 32 | if (pIPAddrTable == NULL) {
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| 33 | printf("Memory allocation failed for GetIpAddrTable\n");
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| 34 | exit(1);
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| 35 | }
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| 36 | }
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| 37 | // Make a second call to GetIpAddrTable to get the
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| 38 | // actual data we want
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| 39 | if ( (dwRetVal = GetIpAddrTable( pIPAddrTable, &dwSize, 0 )) != NO_ERROR ) {
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| 40 | printf("GetIpAddrTable failed with error %d\n", dwRetVal);
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| 41 | if (FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, dwRetVal, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
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| 42 | (LPTSTR) & lpMsgBuf, 0, NULL)) {
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| 43 | printf("\tError: %s", lpMsgBuf);
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| 44 | LocalFree((HLOCAL)lpMsgBuf);
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| 45 | }
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| 46 | exit(1);
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| 47 | }
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| 48 |
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| 49 | printf("\tNum Entries: %ld\n", pIPAddrTable->dwNumEntries);
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| 50 | for (i=0; i < (int) pIPAddrTable->dwNumEntries; i++) {
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| 51 | printf("\n\tInterface Index[%d]:\t%ld\n", i, pIPAddrTable->table[i].dwIndex);
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| 52 | IPAddr.S_un.S_addr = (u_long) pIPAddrTable->table[i].dwAddr;
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| 53 | printf("\tIP Address[%d]: \t%s\n", i, inet_ntoa(IPAddr) );
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| 54 | IPAddr.S_un.S_addr = (u_long) pIPAddrTable->table[i].dwMask;
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| 55 | printf("\tSubnet Mask[%d]: \t%s\n", i, inet_ntoa(IPAddr) );
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| 56 | IPAddr.S_un.S_addr = (u_long) pIPAddrTable->table[i].dwBCastAddr;
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| 57 | printf("\tBroadCast[%d]: \t%s (%ld%)\n", i, inet_ntoa(IPAddr), pIPAddrTable->table[i].dwBCastAddr);
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| 58 | printf("\tReassembly size[%d]:\t%ld\n", i, pIPAddrTable->table[i].dwReasmSize);
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| 59 | #if 0
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| 60 | printf("\tType and State[%d]:", i);
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| 61 | if (pIPAddrTable->table[i].wType & MIB_IPADDR_PRIMARY)
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| 62 | printf("\tPrimary IP Address");
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| 63 | if (pIPAddrTable->table[i].wType & MIB_IPADDR_DYNAMIC)
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| 64 | printf("\tDynamic IP Address");
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| 65 | if (pIPAddrTable->table[i].wType & MIB_IPADDR_DISCONNECTED)
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| 66 | printf("\tAddress is on disconnected interface");
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| 67 | if (pIPAddrTable->table[i].wType & MIB_IPADDR_DELETED)
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| 68 | printf("\tAddress is being deleted");
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| 69 | if (pIPAddrTable->table[i].wType & MIB_IPADDR_TRANSIENT)
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| 70 | printf("\tTransient address");
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| 71 | #endif
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| 72 | printf("\n");
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| 73 | }
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| 74 |
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| 75 | if (pIPAddrTable) {
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| 76 | free(pIPAddrTable);
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| 77 | pIPAddrTable = NULL;
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| 78 | }
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| 79 |
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| 80 | exit(0);
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| 81 | }
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