From afd34f2893a06a3aecf17e8e83b1df6ed2ae91a2 Mon Sep 17 00:00:00 2001 From: iroul Date: Fri, 4 Apr 2014 07:35:14 -0700 Subject: move to my github. --- src/terminal/internal/fqterm_telnet.h | 195 ++++++++++++++++++++++++++++++++++ 1 file changed, 195 insertions(+) create mode 100644 src/terminal/internal/fqterm_telnet.h (limited to 'src/terminal/internal/fqterm_telnet.h') diff --git a/src/terminal/internal/fqterm_telnet.h b/src/terminal/internal/fqterm_telnet.h new file mode 100644 index 0000000..33e8c6e --- /dev/null +++ b/src/terminal/internal/fqterm_telnet.h @@ -0,0 +1,195 @@ +/*************************************************************************** + * fqterm, a terminal emulator for both BBS and *nix. * + * Copyright (C) 2008 fqterm development group. * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * + ***************************************************************************/ + +#ifndef FQTERM_TELNET_H +#define FQTERM_TELNET_H + +#include +#include + +namespace FQTerm { + +#ifndef u_char +#define u_char uchar +#endif + +#define NTSTATES 6 // # of Telnet Socket-Input FSM States +#define NSSTATES 3 // # of Telnet Option Subnegotiation FSM States +#define NCHRS 256 // # of valid characters + +// decleration +class FQTermTelnet; +// actionFunc is a pointer, point to a FQTermTelnet's func +typedef int(FQTermTelnet:: *ptrActionFunc)(int c); + +//fsm struct +struct fsm_trans { + u_char ft_state; // current state + short ft_char; // input character + u_char ft_next; // next state + ptrActionFunc ft_action; // action to take +}; + + +/*------------------------------------------------------------------------------ + * FQTermTelnet class definition + *------------------------------------------------------------------------------- + */ +class FQTermSocket; + +// Telnet connection, a wrapper of socket. +// It will translate raw NVT data from low level socket to ansi data, +// and then upper level application can read it. +// It also can send ascii data (0~127). +class FQTermTelnet: public QObject { + Q_OBJECT; + public: + FQTermTelnet(const QString &termtype, int rows, int numColumns, int protocolType, int hostType, const + char *sshuser = NULL, const char *sshpasswd = NULL); + ~FQTermTelnet(); + + void setProxy(int nProxyType, //0-no proxy; 1-wingate; 2-sock4; 3-socks5 + bool bAuth, // if authentation needed + const QString &strProxyHost, quint16 uProxyPort, const QString &strProxyUsr, + const QString &strProxyPwd); + void connectHost(const QString &hostname, quint16 portnumber); + + // Read ansi data. + int read(char *data, uint maxlen); + + // Write data raw data + int write(const char *data, uint len); + + void close(); // User close the connection + + int raw_len(); + int read_raw(char *data, uint maxlen); + + bool readyForInput(); + + + signals: + void readyRead(int, int); // There are datas to be read out + void TelnetState(int); // The state telnet, defined as TSXXXX in fqterm.h + void requestUserPwd(QString *user, QString *pwd, bool *isOK); + void errorMessage(QString); + + public slots: + void windowSizeChanged(int, int); + + private slots: + // Retrieve data from socket, translate NVT data to ansi data, + // then notify data ready. + void socketReadyRead(); + + void connected(); + void showError(QAbstractSocket::SocketError); + void hostFound(); + void delayCloseFinished(); + void closed(); + protected: + //init structure fsm + void init_telnet(); + void fsmbuild(); + void fsminit(u_char fsm[][NCHRS], struct fsm_trans ttab[], int nstates); + + //actions + int tcdm(int); + int recopt(int); + int no_op(int); + int do_echo(int); + int do_notsup(int); + int do_noga(int); + int do_txbinary(int); + int will_notsup(int); + int will_txbinary(int); + int will_termtype(int); + int will_naws(int); + int subopt(int); + int subtermtype(int); + int subend(int); + int soputc(int); + int ttputc(int); + int tnabort(int); + + //utility functions + int xputc_up(char); + int xputs_up(char*); + void putc_down(u_char); + +signals: + + void onSSHAuthOK(); + + private: + // Boolean Flags + char synching, doecho, sndbinary, rcvbinary; + char noga; + char naws; + char server_sent_do_naws; + u_char option_cmd; // has value WILL, WONT, DO, or DONT + + char termtype; // non-zero if received "DO TERMTYPE" + char *term; // terminal name + + /* // TODO: BBS don't need control signals + // Special keys - Terminal control characters + // need work... + static const char t_flushc=FQTERM_CTRL('S'); // Abort Output i.e:(^S) + static const char t_intrc=FQTERM_CTRL('C'); // Interrupt i.e:(^C) + static const char t_quitc=FQTERM_CTRL('\\'); // Quit i.e:(^\) + static const char sg_erase=FQTERM_CTRL('?'); // Erase a character i.e:(^?) + static const char sg_kill=FQTERM_CTRL('U'); // Kill a line i.e:(^U) + */ + + // FSM stuffs + static struct fsm_trans ttstab[]; + int ttstate; + u_char ttfsm[NTSTATES][NCHRS]; + + static struct fsm_trans substab[]; + int substate; + u_char subfsm[NSSTATES][NCHRS]; + + // socket stuffs + FQTermSocket *socket; + + //Pointers to internal buffers + // + // |-->from_socket-->process-->to_ansi-->| + // socket<---> <---> ansi decode + // |<---to_socket<--process<--from_ansi--| + // + QByteArray from_socket, to_ansi, from_ansi, to_socket; + uint rsize; // size of to_ansi buffer + uint wsize; // size of to_socket buffer + + // for test + int wx, wy; + int done_naws; + bool bConnected; + int raw_size; + int hostType_; + int protocolType_; +}; + +} // namespace FQTerm + +#endif // FQTERM_TELNET_H -- cgit v1.2.3