# include "winsock2. H" 
# include "ws2tcpip. H" 
#include  
#include  
#include  
# pragma comment (lib, "ws2_32") 
using namespace std; 
Typedef struct _IP_HEADER 
{
The union 
{
BYTE Version; 
BYTE HdrLen; 
}; 
BYTE ServiceType. 
WORD TotalLen; 
The WORD ID; 
The union 
{
WORD Flags; 
WORD Fragoff; 
}; 
BYTE TimeToLive; 
BYTE Protocol; 
WORD HdrChksum; 
DWORD SrcAddr; 
DWORD DstAddr; 
BYTE Options; 

} IP_HEADER; 

Int main () 
{
The SOCKET sock; 
WSADATA wsData; 
Ofstream ofs (" IP. The log ", the ios: : app); 
If (WSAStartup (MAKEWORD (2, 2), & amp; WsData)!=0) 
{
Printf (" WSAStartup failed! \n"); 
return -1; 
} 
If ((the sock=socket (AF_INET SOCK_RAW, IPPROTO_IP))==INVALID_SOCKET) 
{
Printf (" create socket failed \ n "); 
return -1; 
} 

BOOL flag=true; 
If (setsockopt (sock, IPPROTO_IP IP_HDRINCL, (char *) & amp; Flag, sizeof (flag))==SOCKET_ERROR) 
{
Printf (" setsockopt failed! \n"); 
return -1; 
} 
Char hostName [128]. 
If (gethostname (hostName, 100)==SOCKET_ERROR) 
{
Printf (" gethostname failed! \n"); 
return -1; 
} 
Hostent * pHostIP; 
If ((pHostIP=gethostbyname (hostName))==NULL) 
{
Printf (" gethostbyname failed \ n "); 
return -1; 
} 
Sockaddr_in addr_in; 
Addr_in. Sin_addr=* (in_addr *) pHostIP - & gt; H_addr_list [0]. 
Addr_in. Sin_family=AF_INET; 
Addr_in. Sin_port=htons (6000); 
If (bind the sock, (PSOCKADDR) & amp; Addr_in, sizeof (addr_in))==SOCKET_ERROR) 
{
Printf (" bind failed \ n "); 
return -1; 
} 
# define IO_RCVALL _WSAIOW (IOC_VENDOR, 1) 
DWORD dwBufferLen [10]. 
DWORD dwBufferInLen=1; 
DWORD dwBytesReturned=0; 
Char buffer [100]. 
If (WSAIoctl (sock, IO_RCVALL, & amp; DwBufferInLen, sizeof (dwBufferInLen), 
& DwBufferLen, sizeof (dwBufferLen), & amp; DwBytesReturned, NULL, NULL)==SOCKET_ERROR) 
{
Printf (" ioctlsocket faild \ n "); 
return -1; 
} 

Printf (" Analysis of IP Packet! \n\n"); 
String s; 
Char * p; 
Char buffer1 [100]. 
While (true) 
{
Int size=recv (sock, buffer, sizeof (buffer), 0). 
IP_HEADER IP=* (IP_HEADER *) buffer; 
Cout & lt; <"-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --" & lt; S +="\ n -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- \ n"; 
Cout & lt; <"Version:" & lt; <(IP Version & gt;> 4) & lt; _itoa_s (IP Version & gt;> 4, buffer1, 10); 
S +="Version:"; 
S +=buffer1; 
S +="\ n"; 
Cout & lt; <"IHL:" & lt; <((IP) HdrLen & amp; 0 x0f) * 4) & lt; S +="IHL:"; 
_itoa_s ((IP) HdrLen & amp; 0 x0f) * 4, buffer1, 10); 
S +=buffer1; 
S +="\ n"; 
Cout & lt; <"Type of service: the Priority" & lt; <(IP) ServiceType & gt;> 5) & lt; 
"Service" & lt; <((IP) ServiceType & gt;> 1) & amp; 0 x0f) & lt; S +="Type of service: the Priority". 
_itoa_s (IP) ServiceType & gt;> 5, buffer1, 10); 
S +=buffer1; 
S +="Service"; 
_itoa_s ((IP) ServiceType & gt;> 1) & amp; 0 x0f, buffer1, 10); 
S +=buffer1; 
S +="\ n"; 

Cout & lt; <"The TOtal Length:" & lt; S +="TOtal Length:"; 
_itoa_s (IP) TotalLen, buffer1, 10); 
S +=buffer1; 
S +="\ n"; 
Cout & lt; <"Identifcation:" & lt; S +="Identifcation:"; 
_itoa_s (IP) ID, buffer1, 10); 
S +=buffer1; 
S +="\ n"; 
Cout & lt; <"The sign:" & lt; <((IP) Flags & gt;> 15) & amp; 0 x01) & lt; <", DF="& lt; 
((IP) Flags & gt;> 14) & amp; 0 x01) & lt; <", Mf="& lt; <((IP) Flags & gt;> 13) & amp; 0 x01) & lt; S +="sign:"; 
_itoa_s (IP) Flags & gt;> 15) & amp; 0 x01, buffer1, 10); 
S +=buffer1; 
S +=", DF="; 
_itoa_s (IP) Flags & gt;> 14) & amp; 0 x01, buffer1, 10); 
S +=buffer1; 
S +=", Mf="; 
_itoa_s (IP) Flags & gt;> 13) & amp; 0 x01, buffer1, 10); 
S +=buffer1; 
S +="\ n"; 
Cout & lt; <"Fragment offset:" & lt; <(IP) Fragoff & amp; 0 x1fff) & lt; S +="Fragment offset:"; 
_itoa_s (IP) Fragoff & amp; 0 x1fff, buffer1, 10); 
S +=buffer1; 
S +="\ n"; 
Cout & lt; <"Time to live:" & lt; <(int) IP. TimeToLive & lt; S +="Time to live:"; 
_itoa_s ((int) IP TimeToLive, buffer1, 10); 
S +=buffer1; 
S +="\ n"; 
Cout & lt; <"Protocol:" & lt; <. (int), IP Protocol & lt; S +="Protocol:"; 
_itoa_s ((int), IP Protocol, buffer1, 10); 
S +=buffer1; 
S +="\ n"; 
Cout & lt; <"The Header Checksum:" & lt; S +="Header Checksum:"; 
_itoa_s (IP) HdrChksum, buffer1, 10); 
S +=buffer1; 
S +="\ n"; 
Cout & lt; <"Source address:" & lt; <(in_addr inet_ntoa (* *) & amp; IP. SrcAddr) & lt; S +="Source address:"; 
S +=inet_ntoa (* (in_addr *) & amp; nullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnullnull