Наерно интересует нечто навроде следующего (даю токо кусочек проги... тебе токо начало-то и надо (впрочем до конца эту прогу я так и не дописал))
| Код |
SOCKET s = socket(AF_INET, SOCK_RAW, 1);
if (s == INVALID_SOCKET)
{
WSAGetLastError();
return 0;
}
unsigned int iTrue=1;
if(setsockopt(s, IPPROTO_IP, IP_HDRINCL, (char*)&iTrue, sizeof(iTrue)) == SOCKET_ERROR)
{
WSAGetLastError();
return 0;
}
typedef struct _ICMPHeader
{
unsigned char ICMPType;
unsigned char ICMPCode; // Type sub code
unsigned short ICMPChecksum;
union
{
struct {unsigned char uc1,uc2,uc3,uc4;} sUC;
struct {unsigned short us1,us2;} sUS;
unsigned long sUL;
} sICMP;
unsigned long ICMP_Originate_Timestamp; // Not standard field in header, but reserved nonetheless
unsigned long ICMP_Receive_Timestamp;
unsigned long ICMP_Transmit_Timestamp;
} ICMPHeader;
typedef ICMPHeader FAR * LPICMPHeader;
#define ICMPHeaderLength sizeof(ICMPHeader)
typedef struct _IpHeader
{
unsigned char HeaderLength_Version;
unsigned char TypeOfService; // Type of service
unsigned short TotalLength; // total length of the packet
unsigned short Identification; // unique identifier
unsigned short FragmentationFlags; // flags
unsigned char TTL; // Time To Live
unsigned char Protocol; // protocol (TCP, UDP etc)
unsigned short CheckSum; // IP Header checksum
unsigned int sourceIPAddress; // Source address
unsigned int destIPAddress; // Destination Address
} IpHeader;
typedef IpHeader FAR * LPIpHeader;
#define IpHeaderLength sizeof(IpHeader)
LPICMPHeader lpHead;
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