🚀 go-pugleaf

Asger Joergensen wrote:

>Do You know of anything for windows ?

I just worked this up while playing with the ICMP_RR thread.

#include <winsock2.h>
#include <icmpapi.h>
#include <iphlpapi.h>

#pragma pack(1)
typedef struct {
    BYTE   cbType;
    BYTE   cbSize;
    BYTE   pointer;
    struct in_addr address;
} RecordRouteOption, *PRecordRouteOption;


void _stdcall TraceRoute( struct in_addr addr )
{
	char*	SendData = "Hello";
	UCHAR	TTL = 0;
	HANDLE	icmp = IcmpCreateFile();
	DWORD	count;
	DWORD	ReplySize = sizeof(ICMP_ECHO_REPLY) +
			sizeof(RecordRouteOption) +
			sizeof("Hello") + 8;
	ICMP_ECHO_REPLY* reply = (PICMP_ECHO_REPLY) malloc(ReplySize);
	IP_OPTION_INFORMATION info;
	struct in_addr	LastAddr = {0};

	if( (icmp != INVALID_HANDLE_VALUE) && (reply != NULL) )
	{
	    printf("Start trace\r\n");
	    printf( "\tHops\tReply From\tRoundTrip\n" );
	    while( LastAddr.s_addr != addr.s_addr )
	    {
		memset( &info, 0, sizeof(info) );
		info.Ttl = TTL++;
		count = IcmpSendEcho2( icmp, NULL,NULL,NULL,
				addr.s_addr, SendData, sizeof("Hello"),
				&info, reply, ReplySize, 1000 );
		if( count )
		{
			LastAddr.s_addr = reply->Address;
			printf("\t%3d:\t%s:\t%3dms %s\r\n",
				info.Ttl,
				inet_ntoa(LastAddr),
				reply->RoundTripTime,
				((reply->DataSize && reply->Data)? reply->Data:" ")
				);
		}else{
			// DWORD error = GetLastError();
			// Add error handling if desired
		};
		if( TTL == 0 )
		{
			//ReplySize = sizeof(ICMP_ECHO_REPLY) + sizeof(SendData) + 8;
			//Causes destination to be unable to reply (reply too small).
			printf( "Unreachable within 255 hops, or Program Error\n");
			break;
		};
	    };// while addr
	    printf("End trace\r\n");
	}else{
		// report lack of memory or icmp resources
	};// if icmp
	free( reply );
	IcmpCloseHandle(icmp);
}