Class CICMPCrafter::
GetInformation()
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Public Function Declared in:
ICMPCrafter.h

'Declaration' icon -- Shortcut to top of page. Declaration

char * GetInformation(
    BOOL bReply,
    unsigned short usIdentifier,
    unsigned short usSequence,
    unsigned short& usTotalSize) const;

'Description' icon -- Shortcut to top of page. Description

Get the memory for the following ICMP types

'Function Body' icon -- Shortcut to top of page. Function Body

try
{
    //Create the header
    LPICMPHeader lpHead;
    lpHead=ConstructICMP();

    if (!lpHead)
    {
        ReportError("GetInformation","Failed to construct ICMP header!");
        return FALSE;
    }

    //Protect it
    std::auto_ptr<ICMPHeader> pProtection(lpHead);

    //Check if echo or reply
    if (bReply)
        lpHead->ucICMPType=ICMP_Information_Reply;
    else
        lpHead->ucICMPType=ICMP_Information;

    lpHead->ucICMPCode=0;
    lpHead->sICMP.sUS.us1=htons(usIdentifier);
    lpHead->sICMP.sUS.us2=htons(usSequence);

    //And the checksum
    //Using only first 8 bytes
    lpHead->usICMPChecksum=CalculateChecksum((unsigned short*)lpHead,ICMP_Information_SIZE);

    //Create the packet
    return CreateFinal(lpHead,
                       usTotalSize);
}
ERROR_HANDLER_RETURN("GetInformation",NULL)

'See Also' icon -- Shortcut to top of page. See Also

Class Overview Class Overview  |  Public base class CIPCrafter  |  Public base class CICMPSocket  |  Hierarchy Chart Hierarchy Chart


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