#include?
#include?
#include?
#include??
#include?
#include?
#pragma?comment（lib?“ws2_32.lib“）
#define?VERSION????????????????????????“1.00“
#define?TIMEOUT????????????????????????300
#define?MAXSIZE????????????????????????20480
#define?HOSTLEN????????????????????????40
#define?CONNECTNUM??????????????????5

//?define?2?socket?struct
struct?transocket?
{
?????SOCKET?fd1;
?????SOCKET?fd2;
};

//?define?function?
void?ver（）;
void?usage（char?*prog）;
void?transmitdata（LPVOID?data）;
void?getctrlc（int?j）;
void?closeallfd（）;
void?makelog（char?*buffer?int?length）;
void?proxy（int?port）;
void?bind2bind（int?port1?int?port2）;
void?bind2conn（int?port1?char?*host?int?port2）;
void?conn2conn（char?*host1?int?port1?char?*host2?int?port2）;
int?testifisvalue（char?*str）;
int?create_socket（）;
int?create_server（int?sockfd?int?port）;
int?client_connect（int?sockfd?char*?server?int?port）;

//?define?GLOBAL?variable?here
extern?int?errno;
FILE?*fp;
int?method=0;
//int?connectnum=0;

//************************************************************************************
//?
//?function?main
//
//************************************************************************************
VOID?main（int?argc?char*?argv[]）
{for（?int?lvhuana=0;lvhuana<=100;lvhuana++）{?lvhuana+3;?}
?????char?**p;
?????char?sConnectHost[HOSTLEN]?sTransmitHost[HOSTLEN];
?????int?iConnectPort=0?iTransmitPort=0;
?????char?*logfile=NULL;

?????ver（）;
?????memset（sConnectHost?0?HOSTLEN）;
?????memset（sTransmitHost?0?HOSTLEN）;

?????p=argv;
?????while（*p）
?????{
???????????if（stricmp（*p?“-log“）?==?0）
???????????{
?????????????????if（testifisvalue（*（p+1）））
?????????????????{
???????????????????????logfile?=?*（++p）;
?????????????????}??????
?????????????????else
?????????????????{
???????????????????????printf（“[-]?ERROR:?Must?supply?logfile?name.\r\n“）;
???????????????????????return;
?????????????????}
?????????????????p++;
?????????????????continue;
???????????}
???????????
???????????p++;
?????}

?????if（logfile?!=NULL）
?????{
???????????fp=fopen（logfile“a“）;
???????????if（fp?==?NULL?）?
???????????{
?????????????????printf（“[-]?ERROR:?open?logfile“）;
?????????????????return;
???????????}

???????????makelog（“======?Start?======\r\n“?22）;
?????}


?????//?Win?Start?Winsock.
?????WSADATA?wsadata;
?????WSAStartup（MAKEWORD（1?1）?&wsadata）;

?????signal（SIGINT?&getctrlc）;

?????if（argc?>?2）
?????{
???????????if（stricmp（argv[1]?“-listen“）?==?0?&&?argc?>=?4）
???????????{
?????????????????iConnectPort?=?atoi（argv[2]）;
?????????????????iTransmitPort?=?atoi（argv[3]）;
?????????????????method?=?1;
???????????}
???????????else
???????????if（stricmp（argv[1]?“-tran“）?==?0?&&?argc?>=?5）
???????????{
?????????????????iConnectPort?=?atoi（argv[2]）;
?????????????????strncpy（sTransmitHost?argv[3]?HOSTLEN）;
?????????????????iTransmitPort?=?ato