scanhost.h

这个是用VC++实现的winsnmp的网络管理兼监控的程序

#pragma pack(4)

#pragma comment(lib,"Ws2_32.lib")
#define WIN32_LEAN_AND_MEAN
#include<winsock2.h>
#include<stdio.h>
#include<iostream.h>
#include<stdlib.h>
#include<sys/timeb.h>
#include<time.h>

typedef struct iphdr{
unsigned int headlen:4;
unsigned int version:4;
unsigned char tos;
unsigned short totallen;
unsigned short id;
unsigned short flag;
unsigned char ttl;
unsigned char prot;
unsigned short checksum;
unsigned int sourceIP;
unsigned int destIP;
}IpHeader;

typedef struct icmphdr{
BYTE type;
BYTE code;
USHORT checksum;
USHORT id;
USHORT seq;
} IcmpHeader;

#define ICMP_ECHO 8
#define ICMP_ECHO_REPLY 0
#define ICMP_MIN 8
#define STATUS_FAILED 0Xffff
#define DEF_PACKET_SIZE 32
#define MAX_PACKET 1024
#define MAX_PING_PACKET_SIZE (MAX_PACKET + sizeof(IpHeader))

void fill_icmp_data(char*,int);
USHORT checksum(USHORT*,int);
void decode_resp(char*,int,struct sockaddr_in*);
DWORD WINAPI FindIP(LPVOID pIPAddrTemp);