root/src/noit_console_telnet.h

Revision 46304a4547d3e7cd3b7e98eaa2b8653034cd1c6b, 10.7 kB (checked in by Theo Schlossnagle <jesus@omniti.com>, 6 years ago)

add in linemode

  • Property mode set to 100644
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1 /*
2  * Copyright (c) 1989, 1993
3  *      The Regents of the University of California.  All rights reserved.
4  * Copyright (c) 2007
5  *      OmnitTI Computer Consulting, Inc.  All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *      This product includes software developed by the University of
18  *      California, Berkeley and its contributors.
19  * 4. Neither the name of the University nor the names of its contributors
20  *    may be used to endorse or promote products derived from this software
21  *    without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33  * SUCH DAMAGE.
34  *
35  *      @(#)defs.h      8.1 (Berkeley) 6/4/93
36  */
37
38 #ifndef _NOIT_CONSOLE_TELNET_H
39 #define _NOIT_CONSOLE_TELNET_H
40
41 #include "noit_defines.h"
42 #include "utils/noit_hash.h"
43
44 #include <arpa/telnet.h>
45 #include <sys/ioctl.h>
46 #include <sys/ioctl_compat.h>
47 #ifdef HAVE_TERMIOS_H
48 #include <termios.h>
49 #endif
50 #ifdef HAVE_TERM_H
51 #include <term.h>
52 #endif
53
54 #define LINEMODE 1
55
56 #ifndef _POSIX_VDISABLE
57 # ifdef VDISABLE
58 #  define _POSIX_VDISABLE VDISABLE
59 # else
60 #  define _POSIX_VDISABLE ((unsigned char)'\377')
61 # endif
62 #endif
63
64 /*
65  * Structures of information for each special character function.
66  */
67 typedef unsigned char cc_t;
68
69 typedef struct {
70         unsigned char   flag;           /* the flags for this function */
71         cc_t            val;            /* the value of the special character */
72 } slcent, *Slcent;
73
74 typedef struct {
75         slcent          defset;         /* the default settings */
76         slcent          current;        /* the current settings */
77         cc_t            *sptr;          /* a pointer to the char in */
78                                         /* system data structures */
79 } slcfun, *Slcfun;
80
81 #ifndef USE_TERMIO
82 struct termbuf {
83         struct sgttyb sg;
84         struct tchars tc;
85         struct ltchars ltc;
86         int state;
87         int lflags;
88 };
89 # define        cfsetospeed(tp, val)    (tp)->sg.sg_ospeed = (val)
90 # define        cfsetispeed(tp, val)    (tp)->sg.sg_ispeed = (val)
91 # define        cfgetospeed(tp)         (tp)->sg.sg_ospeed
92 # define        cfgetispeed(tp)         (tp)->sg.sg_ispeed
93 #else   /* USE_TERMIO */
94 # ifndef        TCSANOW
95 #  ifdef TCSETS
96 #   define      TCSANOW         TCSETS
97 #   define      TCSADRAIN       TCSETSW
98 #   define      tcgetattr(f, t) ioctl(f, TCGETS, (char *)t)
99 #  else
100 #   ifdef TCSETA
101 #    define     TCSANOW         TCSETA
102 #    define     TCSADRAIN       TCSETAW
103 #    define     tcgetattr(f, t) ioctl(f, TCGETA, (char *)t)
104 #   else
105 #    define     TCSANOW         TIOCSETA
106 #    define     TCSADRAIN       TIOCSETAW
107 #    define     tcgetattr(f, t) ioctl(f, TIOCGETA, (char *)t)
108 #   endif
109 #  endif
110 #  define       tcsetattr(f, a, t)      ioctl(f, a, t)
111 #  define       cfsetospeed(tp, val)    (tp)->c_cflag &= ~CBAUD; \
112                                         (tp)->c_cflag |= (val)
113 #  define       cfgetospeed(tp)         ((tp)->c_cflag & CBAUD)
114 #  ifdef CIBAUD
115 #   define      cfsetispeed(tp, val)    (tp)->c_cflag &= ~CIBAUD; \
116                                         (tp)->c_cflag |= ((val)<<IBSHIFT)
117 #   define      cfgetispeed(tp)         (((tp)->c_cflag & CIBAUD)>>IBSHIFT)
118 #  else
119 #   define      cfsetispeed(tp, val)    (tp)->c_cflag &= ~CBAUD; \
120                                         (tp)->c_cflag |= (val)
121 #   define      cfgetispeed(tp)         ((tp)->c_cflag & CBAUD)
122 #  endif
123 # endif /* TCSANOW */
124 #endif  /* USE_TERMIO */
125
126 /*
127  * The following are some clocks used to decide how to interpret
128  * the relationship between various variables.
129  */
130
131 struct clocks_t {
132     int
133         system,                 /* what the current time is */
134         echotoggle,             /* last time user entered echo character */
135         modenegotiated,         /* last time operating mode negotiated */
136         didnetreceive,          /* last time we read data from network */
137         ttypesubopt,            /* ttype subopt is received */
138         tspeedsubopt,           /* tspeed subopt is received */
139         environsubopt,          /* environ subopt is received */
140         oenvironsubopt,         /* old environ subopt is received */
141         xdisplocsubopt,         /* xdisploc subopt is received */
142         baseline,               /* time started to do timed action */
143         gotDM;                  /* when did we last see a data mark */
144 };
145
146 typedef struct {
147   noit_hash_table _env;
148   unsigned char *_subbuffer;
149   unsigned char *_subpointer;
150   unsigned char *_subend;
151   unsigned char *_subsave;
152   unsigned char  _pty_buf[1024];
153   int            _pty_fill;
154   slcfun         _slctab[NSLC + 1];
155   char           _options[256];
156   char           _do_dont_resp[256];
157   char           _will_wont_resp[256];
158   int            _SYNCHing;
159   int            _flowmode;
160   int            _restartany;
161   int            __terminit;
162   int            _linemode;
163   int            _uselinemode;
164   int            _alwayslinemode;
165   int            _editmode;
166   int            _useeditmode;
167   unsigned char *_def_slcbuf;
168   int            _def_slclen;
169   int            _slcchange;    /* change to slc is requested */
170   unsigned char *_slcptr;       /* pointer into slc buffer */
171   unsigned char  _slcbuf[NSLC*6];       /* buffer for slc negotiation */
172
173   int            _def_tspeed; /* This one */
174   int            _def_rspeed; /* and this one, need init to -1 */
175 #if     !defined(LINEMODE) || !defined(KLUDGELINEMODE)
176   int            _turn_on_sga;
177 #endif
178 #ifdef TIOCSWINSZ
179   int            _def_row;
180   int            _def_col;
181 #endif
182   char           _terminalname[41];
183   struct clocks_t _clocks;
184 #ifdef USE_TERMIO
185   struct termios _termbuf, _termbuf2;   /* pty control structure */
186 #else
187   struct termbuf _termbuf, _termbuf2;   /* pty control structure */
188 #endif
189 } *noit_console_telnet_closure_t;
190
191
192 /*
193  * We keep track of each side of the option negotiation.
194  */
195
196 #define MY_STATE_WILL           0x01
197 #define MY_WANT_STATE_WILL      0x02
198 #define MY_STATE_DO             0x04
199 #define MY_WANT_STATE_DO        0x08
200
201 /*
202  * Macros to check the current state of things
203  */
204
205 #define my_state_is_do(opt)             (ncct->telnet->_options[opt]&MY_STATE_DO)
206 #define my_state_is_will(opt)           (ncct->telnet->_options[opt]&MY_STATE_WILL)
207 #define my_want_state_is_do(opt)        (ncct->telnet->_options[opt]&MY_WANT_STATE_DO)
208 #define my_want_state_is_will(opt)      (ncct->telnet->_options[opt]&MY_WANT_STATE_WILL)
209
210 #define my_state_is_dont(opt)           (!my_state_is_do(opt))
211 #define my_state_is_wont(opt)           (!my_state_is_will(opt))
212 #define my_want_state_is_dont(opt)      (!my_want_state_is_do(opt))
213 #define my_want_state_is_wont(opt)      (!my_want_state_is_will(opt))
214
215 #define set_my_state_do(opt)            (ncct->telnet->_options[opt] |= MY_STATE_DO)
216 #define set_my_state_will(opt)          (ncct->telnet->_options[opt] |= MY_STATE_WILL)
217 #define set_my_want_state_do(opt)       (ncct->telnet->_options[opt] |= MY_WANT_STATE_DO)
218 #define set_my_want_state_will(opt)     (ncct->telnet->_options[opt] |= MY_WANT_STATE_WILL)
219
220 #define set_my_state_dont(opt)          (ncct->telnet->_options[opt] &= ~MY_STATE_DO)
221 #define set_my_state_wont(opt)          (ncct->telnet->_options[opt] &= ~MY_STATE_WILL)
222 #define set_my_want_state_dont(opt)     (ncct->telnet->_options[opt] &= ~MY_WANT_STATE_DO)
223 #define set_my_want_state_wont(opt)     (ncct->telnet->_options[opt] &= ~MY_WANT_STATE_WILL)
224
225 /*
226  * Tricky code here.  What we want to know is if the MY_STATE_WILL
227  * and MY_WANT_STATE_WILL bits have the same value.  Since the two
228  * bits are adjacent, a little arithmatic will show that by adding
229  * in the lower bit, the upper bit will be set if the two bits were
230  * different, and clear if they were the same.
231  */
232 #define my_will_wont_is_changing(opt) \
233                         ((ncct->telnet->_options[opt]+MY_STATE_WILL) & MY_WANT_STATE_WILL)
234
235 #define my_do_dont_is_changing(opt) \
236                         ((ncct->telnet->_options[opt]+MY_STATE_DO) & MY_WANT_STATE_DO)
237
238 /*
239  * Make everything symmetrical
240  */
241
242 #define HIS_STATE_WILL                  MY_STATE_DO
243 #define HIS_WANT_STATE_WILL             MY_WANT_STATE_DO
244 #define HIS_STATE_DO                    MY_STATE_WILL
245 #define HIS_WANT_STATE_DO               MY_WANT_STATE_WILL
246
247 #define his_state_is_do                 my_state_is_will
248 #define his_state_is_will               my_state_is_do
249 #define his_want_state_is_do            my_want_state_is_will
250 #define his_want_state_is_will          my_want_state_is_do
251
252 #define his_state_is_dont               my_state_is_wont
253 #define his_state_is_wont               my_state_is_dont
254 #define his_want_state_is_dont          my_want_state_is_wont
255 #define his_want_state_is_wont          my_want_state_is_dont
256
257 #define set_his_state_do                set_my_state_will
258 #define set_his_state_will              set_my_state_do
259 #define set_his_want_state_do           set_my_want_state_will
260 #define set_his_want_state_will         set_my_want_state_do
261
262 #define set_his_state_dont              set_my_state_wont
263 #define set_his_state_wont              set_my_state_dont
264 #define set_his_want_state_dont         set_my_want_state_wont
265 #define set_his_want_state_wont         set_my_want_state_dont
266
267 #define his_will_wont_is_changing       my_do_dont_is_changing
268 #define his_do_dont_is_changing         my_will_wont_is_changing
269
270 struct __noit_console_closure;
271 void
272   noit_console_telnet_willoption(struct __noit_console_closure *ncct,
273                                  int option);
274 void
275   noit_console_telnet_wontoption(struct __noit_console_closure *ncct,
276                                  int option);
277 void
278   noit_console_telnet_dooption(struct __noit_console_closure *ncct,
279                                int option);
280 void
281   noit_console_telnet_dontoption(struct __noit_console_closure *ncct,
282                                  int option);
283 void
284   noit_console_telnet_send_do(struct __noit_console_closure *ncct,
285                               int option, int init);
286 void
287   noit_console_telnet_send_dont(struct __noit_console_closure *ncct,
288                                 int option, int init);
289 void
290   noit_console_telnet_send_will(struct __noit_console_closure *ncct,
291                                 int option, int init);
292 void
293   noit_console_telnet_send_wont(struct __noit_console_closure *ncct,
294                                 int option, int init);
295 void
296   noit_console_telnet_doclientstat(struct __noit_console_closure *ncct);
297 void
298   noit_console_telnet_send_status(struct __noit_console_closure *ncct);
299
300 void noit_console_telnet_free(noit_console_telnet_closure_t);
301 noit_console_telnet_closure_t
302   noit_console_telnet_alloc(struct __noit_console_closure *ncct);
303 int
304   noit_console_telnet_telrcv(struct __noit_console_closure *ncct,
305                              const void *buf, int buflen);
306 void ptyflush(struct __noit_console_closure *ncct);
307
308 #endif
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