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// adapted 23/9/2004 from public domain code at http://tangentsoft.net/wskfaq/examples/dllping.html
#ifndef _ICMP_H
#define _ICMP_H
//#include <windows.h>
#include <iphlpapi.h>
//#include <icmpapi.h>
// Structures required to use functions in ICMP.DLL
/*
typedef struct {
unsigned char Ttl; // Time To Live
unsigned char Tos; // Type Of Service
unsigned char Flags; // IP header flags
unsigned char OptionsSize; // Size in bytes of options data
unsigned char *OptionsData; // Pointer to options data
} IP_OPTION_INFORMATION, * PIP_OPTION_INFORMATION;
typedef struct {
DWORD Address; // Replying address
unsigned long Status; // Reply status
unsigned long RoundTripTime; // RTT in milliseconds
unsigned short DataSize; // Echo data size
unsigned short Reserved; // Reserved for system use
void *Data; // Pointer to the echo data
IP_OPTION_INFORMATION Options; // Reply options
unsigned char ReplyData[8];
} IP_ECHO_REPLY, * PIP_ECHO_REPLY;
*/
typedef HANDLE (WINAPI* pfnHV)(VOID);
typedef BOOL (WINAPI* pfnBH)(HANDLE);
typedef DWORD (WINAPI* pfnDHDPWPipPDD)(HANDLE, HANDLE, FARPROC, PVOID, IPAddr, LPVOID, WORD, PIP_OPTION_INFORMATION, LPVOID, DWORD, DWORD);
class ICMP {
protected:
pfnHV pIcmpCreateFile;
pfnBH pIcmpCloseHandle;
pfnDHDPWPipPDD pIcmpSendEcho2;
HMODULE hDLL;
HANDLE hIP;
unsigned int timeout;
bool functions_loaded;
// protected constructor - singleton class
ICMP();
static ICMP *instance;
char *buff;
public:
~ICMP();
static ICMP *get_instance();
static void cleanup();
bool ping(char *host, ICMP_ECHO_REPLY &reply);
void set_timeout(unsigned int t) {
timeout = t;
}
void stop();
unsigned int get_timeout() {return timeout;}
};
#endif //_ICMP_H
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