root/src/noit_console_telnet.h

Revision fc879b8ebfb9f5de9e38c553a69f55837e32a394, 10.8 kB (checked in by Theo Schlossnagle <jesus@omniti.com>, 6 years ago)

Disable LINEMODE on Linux -- I can't get it to work. This solves the echoing telnet sessions. Make compiles without LINEMODE clean. fixes #19

  • 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 #ifdef HAVE_SYS_IOCTL_COMPAT_H
47 #include <sys/ioctl_compat.h>
48 #endif
49 #ifdef HAVE_TERMIOS_H
50 #include <termios.h>
51 #endif
52 #ifdef HAVE_TERM_H
53 #include <term.h>
54 #endif
55
56 #if !defined(__linux__)
57 /* At least _I_ can't get LINUMODE working on Linux */
58 #define LINEMODE 1
59 #endif
60
61 #ifndef _POSIX_VDISABLE
62 # ifdef VDISABLE
63 #  define _POSIX_VDISABLE VDISABLE
64 # else
65 #  define _POSIX_VDISABLE ((unsigned char)'\377')
66 # endif
67 #endif
68
69 /*
70  * Structures of information for each special character function.
71  */
72
73 typedef struct {
74         unsigned char   flag;           /* the flags for this function */
75         unsigned char   val;            /* the value of the special character */
76 } slcent, *Slcent;
77
78 typedef struct {
79         slcent          defset;         /* the default settings */
80         slcent          current;        /* the current settings */
81         unsigned char   *sptr;          /* a pointer to the char in */
82                                         /* system data structures */
83 } slcfun, *Slcfun;
84
85 #ifndef USE_TERMIO
86 struct termbuf {
87         struct sgttyb sg;
88         struct tchars tc;
89         struct ltchars ltc;
90         int state;
91         int lflags;
92 };
93 # define        cfsetospeed(tp, val)    (tp)->sg.sg_ospeed = (val)
94 # define        cfsetispeed(tp, val)    (tp)->sg.sg_ispeed = (val)
95 # define        cfgetospeed(tp)         (tp)->sg.sg_ospeed
96 # define        cfgetispeed(tp)         (tp)->sg.sg_ispeed
97 #else   /* USE_TERMIO */
98 # ifndef        TCSANOW
99 #  ifdef TCSETS
100 #   define      TCSANOW         TCSETS
101 #   define      TCSADRAIN       TCSETSW
102 #   define      tcgetattr(f, t) ioctl(f, TCGETS, (char *)t)
103 #  else
104 #   ifdef TCSETA
105 #    define     TCSANOW         TCSETA
106 #    define     TCSADRAIN       TCSETAW
107 #    define     tcgetattr(f, t) ioctl(f, TCGETA, (char *)t)
108 #   else
109 #    define     TCSANOW         TIOCSETA
110 #    define     TCSADRAIN       TIOCSETAW
111 #    define     tcgetattr(f, t) ioctl(f, TIOCGETA, (char *)t)
112 #   endif
113 #  endif
114 #  define       tcsetattr(f, a, t)      ioctl(f, a, t)
115 #  define       cfsetospeed(tp, val)    (tp)->c_cflag &= ~CBAUD; \
116                                         (tp)->c_cflag |= (val)
117 #  define       cfgetospeed(tp)         ((tp)->c_cflag & CBAUD)
118 #  ifdef CIBAUD
119 #   define      cfsetispeed(tp, val)    (tp)->c_cflag &= ~CIBAUD; \
120                                         (tp)->c_cflag |= ((val)<<IBSHIFT)
121 #   define      cfgetispeed(tp)         (((tp)->c_cflag & CIBAUD)>>IBSHIFT)
122 #  else
123 #   define      cfsetispeed(tp, val)    (tp)->c_cflag &= ~CBAUD; \
124                                         (tp)->c_cflag |= (val)
125 #   define      cfgetispeed(tp)         ((tp)->c_cflag & CBAUD)
126 #  endif
127 # endif /* TCSANOW */
128 #endif  /* USE_TERMIO */
129
130 /*
131  * The following are some clocks used to decide how to interpret
132  * the relationship between various variables.
133  */
134
135 struct clocks_t {
136     int
137         system,                 /* what the current time is */
138         echotoggle,             /* last time user entered echo character */
139         modenegotiated,         /* last time operating mode negotiated */
140         didnetreceive,          /* last time we read data from network */
141         ttypesubopt,            /* ttype subopt is received */
142         tspeedsubopt,           /* tspeed subopt is received */
143         environsubopt,          /* environ subopt is received */
144         oenvironsubopt,         /* old environ subopt is received */
145         xdisplocsubopt,         /* xdisploc subopt is received */
146         baseline,               /* time started to do timed action */
147         gotDM;                  /* when did we last see a data mark */
148 };
149
150 typedef struct {
151   noit_hash_table _env;
152   unsigned char *_subbuffer;
153   unsigned char *_subpointer;
154   unsigned char *_subend;
155   unsigned char *_subsave;
156   unsigned char  _pty_buf[1024];
157   int            _pty_fill;
158   slcfun         _slctab[NSLC + 1];
159   char           _options[256];
160   char           _do_dont_resp[256];
161   char           _will_wont_resp[256];
162   int            _SYNCHing;
163   int            _flowmode;
164   int            _restartany;
165   int            __terminit;
166   int            _linemode;
167   int            _uselinemode;
168   int            _alwayslinemode;
169   int            _editmode;
170   int            _useeditmode;
171   unsigned char *_def_slcbuf;
172   int            _def_slclen;
173   int            _slcchange;    /* change to slc is requested */
174   unsigned char *_slcptr;       /* pointer into slc buffer */
175   unsigned char  _slcbuf[NSLC*6];       /* buffer for slc negotiation */
176
177   int            _def_tspeed; /* This one */
178   int            _def_rspeed; /* and this one, need init to -1 */
179 #if     !defined(LINEMODE) || !defined(KLUDGELINEMODE)
180   int            _turn_on_sga;
181 #endif
182 #ifdef TIOCSWINSZ
183   int            _def_row;
184   int            _def_col;
185 #endif
186   char           _terminalname[41];
187   struct clocks_t _clocks;
188 #ifdef USE_TERMIO
189   struct termios _termbuf, _termbuf2;   /* pty control structure */
190 #else
191   struct termbuf _termbuf, _termbuf2;   /* pty control structure */
192 #endif
193 } *noit_console_telnet_closure_t;
194
195
196 /*
197  * We keep track of each side of the option negotiation.
198  */
199
200 #define MY_STATE_WILL           0x01
201 #define MY_WANT_STATE_WILL      0x02
202 #define MY_STATE_DO             0x04
203 #define MY_WANT_STATE_DO        0x08
204
205 /*
206  * Macros to check the current state of things
207  */
208
209 #define my_state_is_do(opt)             (ncct->telnet->_options[opt]&MY_STATE_DO)
210 #define my_state_is_will(opt)           (ncct->telnet->_options[opt]&MY_STATE_WILL)
211 #define my_want_state_is_do(opt)        (ncct->telnet->_options[opt]&MY_WANT_STATE_DO)
212 #define my_want_state_is_will(opt)      (ncct->telnet->_options[opt]&MY_WANT_STATE_WILL)
213
214 #define my_state_is_dont(opt)           (!my_state_is_do(opt))
215 #define my_state_is_wont(opt)           (!my_state_is_will(opt))
216 #define my_want_state_is_dont(opt)      (!my_want_state_is_do(opt))
217 #define my_want_state_is_wont(opt)      (!my_want_state_is_will(opt))
218
219 #define set_my_state_do(opt)            (ncct->telnet->_options[opt] |= MY_STATE_DO)
220 #define set_my_state_will(opt)          (ncct->telnet->_options[opt] |= MY_STATE_WILL)
221 #define set_my_want_state_do(opt)       (ncct->telnet->_options[opt] |= MY_WANT_STATE_DO)
222 #define set_my_want_state_will(opt)     (ncct->telnet->_options[opt] |= MY_WANT_STATE_WILL)
223
224 #define set_my_state_dont(opt)          (ncct->telnet->_options[opt] &= ~MY_STATE_DO)
225 #define set_my_state_wont(opt)          (ncct->telnet->_options[opt] &= ~MY_STATE_WILL)
226 #define set_my_want_state_dont(opt)     (ncct->telnet->_options[opt] &= ~MY_WANT_STATE_DO)
227 #define set_my_want_state_wont(opt)     (ncct->telnet->_options[opt] &= ~MY_WANT_STATE_WILL)
228
229 /*
230  * Tricky code here.  What we want to know is if the MY_STATE_WILL
231  * and MY_WANT_STATE_WILL bits have the same value.  Since the two
232  * bits are adjacent, a little arithmatic will show that by adding
233  * in the lower bit, the upper bit will be set if the two bits were
234  * different, and clear if they were the same.
235  */
236 #define my_will_wont_is_changing(opt) \
237                         ((ncct->telnet->_options[opt]+MY_STATE_WILL) & MY_WANT_STATE_WILL)
238
239 #define my_do_dont_is_changing(opt) \
240                         ((ncct->telnet->_options[opt]+MY_STATE_DO) & MY_WANT_STATE_DO)
241
242 /*
243  * Make everything symmetrical
244  */
245
246 #define HIS_STATE_WILL                  MY_STATE_DO
247 #define HIS_WANT_STATE_WILL             MY_WANT_STATE_DO
248 #define HIS_STATE_DO                    MY_STATE_WILL
249 #define HIS_WANT_STATE_DO               MY_WANT_STATE_WILL
250
251 #define his_state_is_do                 my_state_is_will
252 #define his_state_is_will               my_state_is_do
253 #define his_want_state_is_do            my_want_state_is_will
254 #define his_want_state_is_will          my_want_state_is_do
255
256 #define his_state_is_dont               my_state_is_wont
257 #define his_state_is_wont               my_state_is_dont
258 #define his_want_state_is_dont          my_want_state_is_wont
259 #define his_want_state_is_wont          my_want_state_is_dont
260
261 #define set_his_state_do                set_my_state_will
262 #define set_his_state_will              set_my_state_do
263 #define set_his_want_state_do           set_my_want_state_will
264 #define set_his_want_state_will         set_my_want_state_do
265
266 #define set_his_state_dont              set_my_state_wont
267 #define set_his_state_wont              set_my_state_dont
268 #define set_his_want_state_dont         set_my_want_state_wont
269 #define set_his_want_state_wont         set_my_want_state_dont
270
271 #define his_will_wont_is_changing       my_do_dont_is_changing
272 #define his_do_dont_is_changing         my_will_wont_is_changing
273
274 struct __noit_console_closure;
275 void
276   noit_console_telnet_willoption(struct __noit_console_closure *ncct,
277                                  int option);
278 void
279   noit_console_telnet_wontoption(struct __noit_console_closure *ncct,
280                                  int option);
281 void
282   noit_console_telnet_dooption(struct __noit_console_closure *ncct,
283                                int option);
284 void
285   noit_console_telnet_dontoption(struct __noit_console_closure *ncct,
286                                  int option);
287 void
288   noit_console_telnet_send_do(struct __noit_console_closure *ncct,
289                               int option, int init);
290 void
291   noit_console_telnet_send_dont(struct __noit_console_closure *ncct,
292                                 int option, int init);
293 void
294   noit_console_telnet_send_will(struct __noit_console_closure *ncct,
295                                 int option, int init);
296 void
297   noit_console_telnet_send_wont(struct __noit_console_closure *ncct,
298                                 int option, int init);
299 void
300   noit_console_telnet_doclientstat(struct __noit_console_closure *ncct);
301 void
302   noit_console_telnet_send_status(struct __noit_console_closure *ncct);
303
304 void noit_console_telnet_free(noit_console_telnet_closure_t);
305 noit_console_telnet_closure_t
306   noit_console_telnet_alloc(struct __noit_console_closure *ncct);
307 int
308   noit_console_telnet_telrcv(struct __noit_console_closure *ncct,
309                              const void *buf, int buflen);
310 void ptyflush(struct __noit_console_closure *ncct);
311
312 #endif
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