udp端口扫描程序代码(共3页).doc

精选优质文档-倾情为你奉上/ udp.cpp : 定义控制台应用程序的入口点。/#include stdafx.h #include #include #pragma comment(lib, ws2_32.lib) #define MAXBUFF 8192 #define ICMP_UNREACH_PORT 3 #define ICMP_UNREACH 4 enum CMD_NAME, DST_IP, START_PORT, LAST_PORT; structip unsigned int ip_v:4; / 版本unsigned int ip_hl:4; / 头部长unsigned char ip_tos; / 服务类型unsigned short ip_len; / 总长unsigned short ip_id; /鉴定域unsigned short ip_flags; /IP标志unsigned short ip