🚀 go-pugleaf

//
// Ping.h
//

#pragma pack(1)

#define ICMP_ECHOREPLY 0
#define ICMP_ECHOREQ 8

// IP Header -- RFC 791
typedef struct tagIPHDR
{
 u_char  VIHL;   // Version and IHL
 u_char TOS;   // Type Of Service
 short TotLen;   // Total Length
 short ID;    // Identification
 short FlagOff;  // Flags and Fragment Offset
 u_char TTL;   // Time To Live
 u_char Protocol;  // Protocol
 u_short Checksum;  // Checksum
 struct in_addr iaSrc; // Internet Address - Source
 struct in_addr iaDst; // Internet Address - Destination
}IPHDR, *PIPHDR;


// ICMP Header - RFC 792
typedef struct tagICMPHDR
{
 u_char Type;   // Type
 u_char Code;   // Code
 u_short Checksum;  // Checksum
 u_short ID;    // Identification
 u_short Seq;   // Sequence
 char Data;   // Data
}ICMPHDR, *PICMPHDR;


#define REQ_DATASIZE 32  // Echo Request Data size

// ICMP Echo Request
typedef struct tagECHOREQUEST
{
 ICMPHDR icmpHdr;
 DWORD dwTime;
 char cData[REQ_DATASIZE];
}ECHOREQUEST, *PECHOREQUEST;


// ICMP Echo Reply
typedef struct tagECHOREPLY
{
 IPHDR ipHdr;
 ECHOREQUEST echoRequest;
 char    cFiller[256];
}ECHOREPLY, *PECHOREPLY;


#pragma pack()