2010-02-26 11:43:19 +00:00
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#pragma once
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2009-04-13 13:29:21 +00:00
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#define _CRT_SECURE_NO_WARNINGS
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#define WIN32_NO_STATUS
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#include <stdio.h>
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#include <winsock2.h>
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#include <tchar.h>
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#include <time.h>
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/*
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** macro definitions
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*/
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#define TELNET_PORT (23)
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#define BUFSIZE (4096)
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#define USERID_SIZE (64)
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#define CTRLC (3)
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#define BS (8)
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#define CR (13)
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#define LF (10)
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#define DEL (127)
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#define IAC "\xff"
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#define DONT "\xfe"
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#define WONT "\xfc"
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#define WILL "\xfb"
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#define DO "\xfd"
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#define SB "\xfa"
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#define SE "\xf0"
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#define ECHO "\x01"
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#define SUPPRESS_GO_AHEAD "\x03"
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#define TERMINAL_TYPE "\x18"
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#define NAWS "\x1f"
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#define LINEMODE "\x22"
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#define NEWENVIRON "\x27"
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#define MODE "\x01"
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#define HANDSHAKE_TIMEOUT (3)
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/*
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** types
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*/
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typedef struct client_s
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{
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char userID[USERID_SIZE];
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int socket;
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BOOLEAN bTerminate;
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BOOLEAN bReadFromPipe;
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BOOLEAN bWriteToPipe;
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HANDLE hProcess;
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DWORD dwProcessId;
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HANDLE hChildStdinWr;
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HANDLE hChildStdoutRd;
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} client_t;
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typedef enum
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{
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NoEcho = 0,
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Echo = 1,
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Password = 2
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} EchoMode;
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/*
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** Forward function declarations
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*/
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static BOOL WINAPI Cleanup(DWORD dwControlType);
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static void WaitForConnect(void);
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static BOOLEAN StartSocketInterface(void);
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static void CreateSocket(void);
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static void UserLogin(int client_socket);
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static DWORD WINAPI UserLoginThread(LPVOID);
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static int DoTelnetHandshake(int sock);
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static int ReceiveLine(int sock, char *buffer, int len, EchoMode echo);
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static void RunShell(client_t *client);
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//static BOOL CreateChildProcess(const char *);
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static DWORD WINAPI MonitorChildThread(LPVOID);
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static DWORD WINAPI WriteToPipeThread(LPVOID);
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static DWORD WINAPI ReadFromPipeThread(LPVOID);
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static void TerminateShell(client_t *client);
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static VOID ErrorExit(LPTSTR);
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int kickoff_telnetd(void);
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