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  • 大小: 20KB
    文件類型: .c
    金幣: 1
    下載: 0 次
    發布日期: 2021-05-27
  • 語言: 其他
  • 標簽: lcx??

資源簡介

lcx源碼帶注釋 解析 很好理解 需要的可以拿走 做映射很好用

資源截圖

代碼片段和文件信息

Windows7?64+VS2013編譯通過的源碼:

/*
************************************************************************************
*
*?PortTrans.cpp?-?Port?Forwarding.
*
*?Copyright?(C)?2015?HUC?All?Rights?Reserved.
*
*?Author?:?pandas
*?:?
*?:
*?Date?:?2015-4-9
*?:
*?Complie?:?cl?PortTrans.cpp
*?:
*?Usage?:?D:\>PortTrans
*?:?========================?Port?Forwarding?Tool?V1.00?=======================
*?: ==========================?Improved?by?pandas?===========================
*?:
*?:?[Usage?of?Port?Forwarding:]
*?:?PortTrans?-?[-log?logfile]
*?:
*?:?[option:]
*?:?-listen
*?:?-tran
*?:?-slave
*
************************************************************************************
*/
#define?_WINSOCK_DEPRECATED_NO_WARNINGS
#define??_CRT_SECURE_NO_WARNINGS
#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
//int?error;
FILE?*fp;
int?method?=?0;
//int?connectnum=0;
//************************************************************************************
//?
//?function?main?主要是處理用戶參數輸入的問題
//
//************************************************************************************
VOID?main(int?argc?char*?argv[])
{
char?**p;
char?sConnectHost[HOSTLEN]?sTransmitHost[HOSTLEN];//兩個40個字符的數組
int?iConnectPort?=?0?iTransmitPort?=?0;
char?*logfile?=?NULL;
errno_t?err;
ver();//打印信息
memset(sConnectHost?0?HOSTLEN);//字符串初始0值
memset(sTransmitHost?0?HOSTLEN);
p?=?argv;//接收?參數
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“);
err?=?fopen_s(&fp?logfile?“a“);
if?(fp?==?NULL)
{
printf(“[-]?ERROR:?open?logfile“);
return;
}
makelog(“======?Start?======\r\n“?22);
}
//?Win?Start?Winsock.
WSADATA?wsadata;
WSAStartup(MAKEWORD(2?2)?&wsadata);//初始化套接字
signal(SIGINT?&getctrlc);//捕獲ctrl+c?退出程序
if?(argc?>?2)
{
if?(_stricmp(argv[1]?“-listen“)?==?0?&&?argc?>=?4)//
{
iConnectPort?=?atoi(argv[2]);//字符串轉換成整

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