谁要是能将此小程序补全了，高分啊！（VC）

[FoxSky]

/*

本程序在C/C++、VC、Linux、DELPHI上各有一题只要你
补全一个地方的问题，你将得到这200分！

这是一个在局域网内检查是否有机器的网卡处于混乱模式
（即：是否有人在侦听别人的网络包！）的程序

主要是少了 .H 文件，但是也许你能根据程序看出这些
应该是如何定义的

本程序原是在Linux 2.0.x / 2.1.x, libc5 & GlibC下的，
但现在最好是能用BC3.1因为我这儿只有这个。

*/
/* -----------------------------------------
Network Promiscuous Ethernet Detector.
Linux 2.0.x / 2.1.x, libc5 & GlibC
-----------------------------------------

-----------------------------------------
can your subnet, and detect promiscuous
Windows & linuxes. It really works, not a joke.
----------------------------------------- */

#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include

#define ETH_P_ARP 0x0806
#define MAX_PACK_LEN 2000
#define ETHER_HEADER_LEN 14
#define ARPREQUEST 1
#define ARPREPLY 2
#define perr(s) fprintf(stderr,s)
struct arp_struct
{
u_char dst_mac[6];
u_char src_mac[6];
u_short pkt_type;
u_short hw_type;
u_short pro_type;
u_char hw_len;
u_char pro_len;
u_short arp_op;
u_char sender_eth[6];
u_char sender_ip[4];
u_char target_eth[6];
u_char target_ip[4];
};
union
{
u_char full_packet[MAX_PACK_LEN];
struct arp_struct arp_pkt;
}a;

#define full_packet a.full_packet
#define arp_pkt a.arp_pkt
char *inetaddr ( u_int32_t ip )
{
struct in_addr in;
in.s_addr = ip;
return inet_ntoa(in);
}
char *hwaddr (u_char * s)
{
static char buf[30];
sprintf (buf, "%02X:%02X:%02X:%02X:%02X:%02X", s[0], s[1], s[2], s[3],
s[4], s[5]);
return buf;
}

void main (int argc, char **argv)
{
int rec;
int len, from_len, rsflags;
struct ifreq if_data;
struct sockaddr from;
u_int8_t myMAC[6];
u_int32_t myIP, myNETMASK, myBROADCAST, ip, dip, sip;
if (getuid () != 0)
{
perr ("You must be root to run this program!\n");
exit (0);
}
if (argc != 2)
{
fprintf(stderr,"Usage: %s eth0\n", argv[0]);
exit (0);
}
if ((rec = socket (AF_INET, SOCK_PACKET, htons (ETH_P_ARP))) < 0)
{
perror("socket");
exit (0);
}
printf ("----------------------------------------------------------\n");
strcpy (if_data.ifr_name, argv[1]);
if (ioctl (rec, SIOCGIFHWADDR, &if_data) < 0)
{
perr ("can't get HW addres of my interface!\n");
exit(1);
}
memcpy (myMAC, if_data.ifr_hwaddr.sa_data, 6);
printf ("> My HW Addr: %s\n", hwaddr (myMAC));
if (ioctl (rec, SIOCGIFADDR, &if_data) < 0)
{
perr ("can't get IP addres of my interface!\n");
exit(1);
}
memcpy ((void *) &ip, (void *) &if_data.ifr_addr.sa_data + 2, 4);
myIP = ntohl (ip);
printf ("> My IP Addr: %s\n", inetaddr(ip));
if (ioctl (rec, SIOCGIFNETMASK, &if_data) < 0)
perr ("can't get NETMASK addres of my interface!\n");
memcpy ((void *) &ip, (void *) &if_data.ifr_netmask.sa_data + 2, 4);
myNETMASK = ntohl (ip);
printf ("> My NETMASK: %s\n", inetaddr(ip));
if (ioctl (rec, SIOCGIFBRDADDR, &if_data) < 0)
perr ("can't get BROADCAST addres of my interface!\n");
memcpy ((void *) &ip, (void *) &if_data.ifr_broadaddr.sa_data + 2, 4);
myBROADCAST = ntohl (ip);
printf ("> My BROADCAST: %s\n", inetaddr(ip));
if ((rsflags = fcntl (rec, F_GETFL)) == -1)
{
perror ("fcntl F_GETFL");
exit (1);
}
if (fcntl (rec, F_SETFL, rsflags ¦ O_NONBLOCK) == -1)
{
perror ("fcntl F_SETFL");
exit (1);
}
printf ("----------------------------------------------------------\n");
printf ("> Scanning ....\n");
for (dip = (myIP & myNETMASK) + 1; dip < myBROADCAST; dip++)
{
bzero(full_packet, MAX_PACK_LEN);
memcpy (arp_pkt.dst_mac, "\255\255\255\255\255\0", 6);
/* ff:ff:ff:ff:ff:00:) */
/* Only change this line! */
memcpy (arp_pkt.src_mac, myMAC, 6);
arp_pkt.pkt_type = htons( ETH_P_ARP );
arp_pkt.hw_type = htons( 0x0001 );
arp_pkt.hw_len = 6;
arp_pkt.pro_type = htons( 0x0800 );
arp_pkt.pro_len = 4;
arp_pkt.arp_op = htons (ARPREQUEST);
memcpy (arp_pkt.sender_eth, myMAC, 6);
ip = htonl (myIP);
memcpy (arp_pkt.sender_ip, &ip, 4);
memcpy (arp_pkt.target_eth, "\0\0\0\0\0\0", 6);
ip = htonl (dip);
memcpy (arp_pkt.target_ip, &ip, 4);
strcpy(from.sa_data, argv[1]);
from.sa_family = 1;
if( sendto (rec, full_packet, sizeof (struct arp_struct), 0, &from,
sizeof(from)) < 0)
perror ("sendto");
usleep (50);
len = recvfrom (rec, full_packet, MAX_PACK_LEN, 0, &from, &from_len);
if (len <= ETHER_HEADER_LEN)
continue;
memcpy (&ip, arp_pkt.target_ip, 4);
memcpy (&sip, arp_pkt.sender_ip, 4);
if (ntohs (arp_pkt.arp_op) == ARPREPLY
&& ntohl (ip) == myIP
&& ( dip - ntohl(sip) >= 0 )
&& ( dip - ntohl(sip) <= 2 ) )
{
printf ("*> Host %s, %s **** Promiscuous mode detected !!!\n",
inetaddr (sip),
hwaddr (arp_pkt.sender_eth));
}
}
printf ("> End.\n");
exit (0);
}

[lhuchong]

在BC3.1下没有办法能编译通过的，不用费脑子了

[hujun614]

在BC3.1下没有办法能编译通过的，不用费脑子了 ,
没有这样的开发包的。
还是早点把分分了吧。 嘻嘻

[liang_z]

/

[liang_z]

我也不一定要用BC3.1啊，
用VC也可以啊！

[TigerHu]

在Windows下没有办法能编译！

[howard]

http://www.csdn.net/expert/topic/434/434283.shtm

各位高人，请帮忙看一下，如能解决，必500分相送
是关于网络文件传输的问题

[liang_z]

/