Gibts es eine möglichkeit die IP-Adresse zur laufzeit mit c++ zu ändern?

Danke!!!

IPAddress Class Reference

IPAddress (const std::string &Address)
 	Construct the address from a string.
IPAddress (const char *Address)
 	Construct the address from a C-style string ; 
        Needed for implicit conversions from literal strings to IPAddress to work.
IPAddress (Uint8 Byte0, Uint8 Byte1, Uint8 Byte2, Uint8 Byte3)
 	Construct the address from 4 bytes.
bool 	IsValid () const
 	Tell if the address is a valid one.

Mit Standard C++ Mitteln ist das nicht möglich. Wenn dann über irgend eine systemspezifische Lösung.

Ich habe was gefunden und doch es geht mit Standard C++ Mitteln. Das zauberwort heisst "iphlpapi.h" damit kann man einiges richtung IP, Mac-Adresse machen.

Beispiel wenn einer sich dafür Interessiert:

#include <windows.h>
#include <stdio.h>
#include <ctype.h>
#include <iphlpapi.h>

void Usage(void) {
    printf("Usage: Ipchange [ -l ] [ -a -n<index id> -i<ip address> -m<subnet mask> ] "
        "[ -d -c<context id>]\n\n"
        "\t -l List adapter index IDs and IP Address context ID information\n"
        "\t -a Add IP Address option\n"
        "\t -d Delete IP Address option\n"
        "\t -i IP Address to specify with -a option\n"
        "\t -m Subnet Mask to specify with -a option\n"
        "\t -c IP context ID for an existing IP address\n"
        "\t -n Index ID of an existing network adapter\n");
}

int main(int argc, char *argv[]) {
    ULONG NTEContext = 0;
    ULONG NTEInstance;
    IPAddr NewIP;
    IPAddr NewMask;
    DWORD Index;
    DWORD Context;
    CHAR NewIPStr[64];
    CHAR NewMaskStr[64];

    PIP_ADAPTER_INFO pAdapterInfo, pAdapt;
    PIP_ADDR_STRING pAddrStr;
    DWORD AdapterInfoSize;
    DWORD Err;
    BOOL OptList = FALSE;
    BOOL OptAdd = FALSE;
    BOOL OptDel = FALSE;

    NewIPStr[0] = '\0';
    NewMaskStr[0] = '\0';
    Context = 0;
	Index = 0;
    for (int i = 1; i < argc; i++)
    {
        if ((argv[i][0] == '-') || (argv[i][0] == '/')) 
        {

            switch(tolower(argv[i][1])) 
            {
                case 'l':
                    OptList = TRUE;
                    break;
                case 'a':
                    OptAdd = TRUE;
                    break;
                case 'c':
                    if (strlen(argv[i]) > 2)
                        Context = atoi(&argv[i][2]);
                    break; 
                case 'd':
                    OptDel = TRUE;
                    break;
                case 'i':
                    if (strlen(argv[i]) > 2)
                        strcpy(NewIPStr, &argv[i][2]);
                    break;
                case 'm':
                    if (strlen(argv[i]) > 2)
                        strcpy(NewMaskStr, &argv[i][2]);
                    break;
                case 'n':
                    if (strlen(argv[i]) > 2)
                        Index = atoi(&argv[i][2]);
                    break;
                default:
                    printf("default\n");
                    Usage();
                    return 0;
                }
        }
        else
        {
            printf("else\n");
            Usage();
            return 0;
        }
    }

    // Check options
    if ((OptAdd && (Index == -1 || NewIPStr[0] == '\0' || NewMaskStr[0] == '\0'))
        || (OptDel && Context == -1))
    {
        Usage();
        return 0;
    }

    // Get sizing information about all adapters
    AdapterInfoSize = 0;
    if ((Err = GetAdaptersInfo(NULL, &AdapterInfoSize)) != 0)
    {
        if (Err != ERROR_BUFFER_OVERFLOW)
        {
            printf("GetAdaptersInfo sizing failed with error %d\n", Err);
            return 0;
        }
    }

    // Allocate memory from sizing information
    if ((pAdapterInfo = (PIP_ADAPTER_INFO) GlobalAlloc(GPTR, AdapterInfoSize)) == NULL)
    {
        printf("Memory allocation error\n");
        return 0;
    }

    // Get actual adapter information
    if ((Err = GetAdaptersInfo(pAdapterInfo, &AdapterInfoSize)) != 0)
    {
        printf("GetAdaptersInfo failed with error %d\n", Err);
        return 0;
    }

    if (OptList)
    {
        printf("MAC Address - Adapter\n"
            "Index     Context   Ip Address          Subnet Mask\n"
            "--------------------------------------------------------------\n");

        pAdapt = pAdapterInfo;

        while (pAdapt)
        {
            for (UINT i=0; i<pAdapt->AddressLength; i++)
            {
                if (i == (pAdapt->AddressLength - 1))
                    printf("%.2X - ",(int)pAdapt->Address[i]);
                else
                    printf("%.2X-",(int)pAdapt->Address[i]);
            }
            printf("%s\n", pAdapt->Description);

            pAddrStr = &(pAdapt->IpAddressList);
            while(pAddrStr)
            {
                printf("%-10.d%-10.d%-20.20s%s\n", pAdapt->Index, pAddrStr->Context, pAddrStr->IpAddress.String, pAddrStr->IpMask.String);
                pAddrStr = pAddrStr->Next;
            }

            pAdapt = pAdapt->Next;
        }
    }

    if (OptAdd)
    {
        NewIP = inet_addr(NewIPStr);
        NewMask = inet_addr(NewMaskStr);
        if ((Err = AddIPAddress(NewIP, NewMask, Index, &NTEContext, &NTEInstance)) != 0)
        {
            printf("AddIPAddress failed with error %d, %d\n", NTEContext, Err);
            return 0;
        }
    }

    if (OptDel)
    {
        if ((Err = DeleteIPAddress(Context)) != 0)
            printf("DeleteIPAddress failed %d\n", Err);
    }

return EXIT_SUCCESS;
}

Trozdem an alle vielen Dank!!!! :p

Ich habe was gefunden und doch es geht mit Standard C++ Mitteln.

Falsch, du hast die WinAPI benutzt, das zählt nicht zu den Standard C++ Mitteln.

Im Zweifelsfall bitte auch folgende Hinweise beachten:
C/C++ Forum :: FAQ - Sonstiges :: Wohin mit meiner Frage?

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