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79 lines
2.2 KiB
C
79 lines
2.2 KiB
C
#define WIN32_LEAN_AND_MEAN
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#include <winsock2.h>
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#include <tchar.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <ws2tcpip.h>
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#include <string.h>
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#include <time.h>
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#define ECHO_REPLY 0
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#define DEST_UNREACHABLE 3
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#define ECHO_REQUEST 8
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#define TTL_EXCEEDED 11
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#define MAX_PING_PACKET_SIZE 1024
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#define MAX_PING_DATA_SIZE (MAX_PING_PACKET_SIZE + sizeof(IPv4Header))
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#define PACKET_SIZE 32
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#define ICMP_MIN_SIZE 8
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/* we need this for packets which have the 'dont fragment'
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* bit set, as they can get quite large otherwise */
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#define MAX_REC_SIZE 200
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/* pack the structures */
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#include <pshpack1.h>
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/* IPv4 Header, 20 bytes */
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typedef struct IPv4Header
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{
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BYTE h_len:4;
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BYTE version:4;
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BYTE tos;
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USHORT length;
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USHORT id;
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USHORT flag_frag;
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BYTE ttl;
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BYTE proto;
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USHORT checksum;
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ULONG source;
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ULONG dest;
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} IPv4_HEADER, *PIPv4_HEADER;
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/* ICMP Header, 8 bytes */
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typedef struct ICMPHeader
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{
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BYTE type;
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BYTE code;
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USHORT checksum;
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USHORT id; // not used in time exceeded
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USHORT seq; // not used in time exceeded
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} ICMP_HEADER, *PICMP_HEADER;
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/* ICMP Echo Reply Header */
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typedef struct EchoReplyHeader
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{
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struct ICMPHeader icmpheader;
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} ECHO_REPLY_HEADER, *PECHO_REPLY_HEADER;
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#include <poppack.h>
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typedef struct _APPINFO
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{
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SOCKET icmpSock; // socket descriptor
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SOCKADDR_IN source, dest; // source and destination address info
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PECHO_REPLY_HEADER SendPacket; // ICMP echo packet
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PIPv4_HEADER RecvPacket; // return reveive packet
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BOOL bUsePerformanceCounter; // whether to use the high res performance counter
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LARGE_INTEGER TicksPerMs; // number of millisecs in relation to proc freq
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LARGE_INTEGER TicksPerUs; // number of microsecs in relation to proc freq
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LONGLONG lTimeStart; // send packet, timer start
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LONGLONG lTimeEnd; // receive packet, timer end
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BOOL bResolveAddresses; // -d MS ping defaults to true.
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INT iMaxHops; // -h Max number of hops before trace ends
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INT iHostList; // -j Source route
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INT iTimeOut; // -w time before packet times out
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} APPINFO, *PAPPINFO;
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