remote_cmds/telnet.tproj/externs.h

   1 /*
   2  * Copyright (c) 1988, 1990, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and its contributors.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  *
  33  *      @(#)externs.h   8.3 (Berkeley) 5/30/95
  34  *      $FreeBSD: src/contrib/telnet/telnet/externs.h,v 1.11 2007/07/01 12:08:04 gnn Exp $
  35  */
  36
  37 #ifndef BSD
  38 # define BSD 43
  39 #endif
  40
  41 /*
  42  * ucb stdio.h defines BSD as something weird
  43  */
  44 #if defined(sun) && defined(__svr4__)
  45 #define BSD 43
  46 #endif
  47
  48 #ifndef USE_TERMIO
  49 # if BSD > 43 || defined(SYSV_TERMIO)
  50 #  define USE_TERMIO
  51 # endif
  52 #endif
  53
  54 #include <stdio.h>
  55 #include <setjmp.h>
  56 #include <sys/ioctl.h>
  57 #include <errno.h>
  58 #ifdef  USE_TERMIO
  59 # ifndef        VINTR
  60 #  include <sys/termios.h>
  61 # endif
  62 # define termio termios
  63 #endif
  64 #if defined(NO_CC_T) || !defined(USE_TERMIO)
  65 # if !defined(USE_TERMIO)
  66 typedef char cc_t;
  67 # else
  68 typedef unsigned char cc_t;
  69 # endif
  70 #endif
  71
  72 #include <string.h>
  73
  74 #if defined(IPSEC)
  75 #ifdef __APPLE__
  76 #include <netinet6/ipsec.h>
  77 #else
  78 #include <netipsec/ipsec.h>
  79 #endif
  80 #if defined(IPSEC_POLICY_IPSEC)
  81 extern char *ipsec_policy_in;
  82 extern char *ipsec_policy_out;
  83 #endif
  84 #endif
  85
  86 #ifndef _POSIX_VDISABLE
  87 # ifdef sun
  88 #  include <sys/param.h>        /* pick up VDISABLE definition, mayby */
  89 # endif
  90 # ifdef VDISABLE
  91 #  define _POSIX_VDISABLE VDISABLE
  92 # else
  93 #  define _POSIX_VDISABLE ((cc_t)'\377')
  94 # endif
  95 #endif
  96
  97 #define SUBBUFSIZE      256
  98
  99 #if     !defined(P)
 100 # ifdef __STDC__
 101 #  define       P(x)    x
 102 # else
 103 #  define       P(x)    ()
 104 # endif
 105 #endif
 106
 107 extern int
 108     autologin,          /* Autologin enabled */
 109     skiprc,             /* Don't process the ~/.telnetrc file */
 110     eight,              /* use eight bit mode (binary in and/or out */
 111     family,             /* address family of peer */
 112     flushout,           /* flush output */
 113     connected,          /* Are we connected to the other side? */
 114     globalmode,         /* Mode tty should be in */
 115     telnetport,         /* Are we connected to the telnet port? */
 116     localflow,          /* Flow control handled locally */
 117     restartany,         /* If flow control, restart output on any character */
 118     localchars,         /* we recognize interrupt/quit */
 119     donelclchars,       /* the user has set "localchars" */
 120     showoptions,
 121     net,                /* Network file descriptor */
 122     tin,                /* Terminal input file descriptor */
 123     tout,               /* Terminal output file descriptor */
 124     crlf,               /* Should '\r' be mapped to <CR><LF> (or <CR><NUL>)? */
 125     autoflush,          /* flush output when interrupting? */
 126     autosynch,          /* send interrupt characters with SYNCH? */
 127     SYNCHing,           /* Is the stream in telnet SYNCH mode? */
 128     donebinarytoggle,   /* the user has put us in binary */
 129     dontlecho,          /* do we suppress local echoing right now? */
 130     crmod,
 131     netdata,            /* Print out network data flow */
 132     prettydump,         /* Print "netdata" output in user readable format */
 133     termdata,           /* Print out terminal data flow */
 134     telnet_debug,       /* Debug level */
 135     doaddrlookup,       /* do a reverse lookup? */
 136     clienteof;          /* Client received EOF */
 137
 138 extern cc_t escape;     /* Escape to command mode */
 139 extern cc_t rlogin;     /* Rlogin mode escape character */
 140 #ifdef  KLUDGELINEMODE
 141 extern cc_t echoc;      /* Toggle local echoing */
 142 #endif
 143
 144 extern char
 145     *prompt;            /* Prompt for command. */
 146
 147 extern char
 148     doopt[],
 149     dont[],
 150     will[],
 151     wont[],
 152     options[],          /* All the little options */
 153     *hostname;          /* Who are we connected to? */
 154 #ifdef  ENCRYPTION
 155 extern void (*encrypt_output)(unsigned char *, int);
 156 extern int (*decrypt_input)(int);
 157 #endif  /* ENCRYPTION */
 158
 159 /*
 160  * We keep track of each side of the option negotiation.
 161  */
 162
 163 #define MY_STATE_WILL           0x01
 164 #define MY_WANT_STATE_WILL      0x02
 165 #define MY_STATE_DO             0x04
 166 #define MY_WANT_STATE_DO        0x08
 167
 168 /*
 169  * Macros to check the current state of things
 170  */
 171
 172 #define my_state_is_do(opt)             (options[opt]&MY_STATE_DO)
 173 #define my_state_is_will(opt)           (options[opt]&MY_STATE_WILL)
 174 #define my_want_state_is_do(opt)        (options[opt]&MY_WANT_STATE_DO)
 175 #define my_want_state_is_will(opt)      (options[opt]&MY_WANT_STATE_WILL)
 176
 177 #define my_state_is_dont(opt)           (!my_state_is_do(opt))
 178 #define my_state_is_wont(opt)           (!my_state_is_will(opt))
 179 #define my_want_state_is_dont(opt)      (!my_want_state_is_do(opt))
 180 #define my_want_state_is_wont(opt)      (!my_want_state_is_will(opt))
 181
 182 #define set_my_state_do(opt)            {options[opt] |= MY_STATE_DO;}
 183 #define set_my_state_will(opt)          {options[opt] |= MY_STATE_WILL;}
 184 #define set_my_want_state_do(opt)       {options[opt] |= MY_WANT_STATE_DO;}
 185 #define set_my_want_state_will(opt)     {options[opt] |= MY_WANT_STATE_WILL;}
 186
 187 #define set_my_state_dont(opt)          {options[opt] &= ~MY_STATE_DO;}
 188 #define set_my_state_wont(opt)          {options[opt] &= ~MY_STATE_WILL;}
 189 #define set_my_want_state_dont(opt)     {options[opt] &= ~MY_WANT_STATE_DO;}
 190 #define set_my_want_state_wont(opt)     {options[opt] &= ~MY_WANT_STATE_WILL;}
 191
 192 /*
 193  * Make everything symetrical
 194  */
 195
 196 #define HIS_STATE_WILL                  MY_STATE_DO
 197 #define HIS_WANT_STATE_WILL             MY_WANT_STATE_DO
 198 #define HIS_STATE_DO                    MY_STATE_WILL
 199 #define HIS_WANT_STATE_DO               MY_WANT_STATE_WILL
 200
 201 #define his_state_is_do                 my_state_is_will
 202 #define his_state_is_will               my_state_is_do
 203 #define his_want_state_is_do            my_want_state_is_will
 204 #define his_want_state_is_will          my_want_state_is_do
 205
 206 #define his_state_is_dont               my_state_is_wont
 207 #define his_state_is_wont               my_state_is_dont
 208 #define his_want_state_is_dont          my_want_state_is_wont
 209 #define his_want_state_is_wont          my_want_state_is_dont
 210
 211 #define set_his_state_do                set_my_state_will
 212 #define set_his_state_will              set_my_state_do
 213 #define set_his_want_state_do           set_my_want_state_will
 214 #define set_his_want_state_will         set_my_want_state_do
 215
 216 #define set_his_state_dont              set_my_state_wont
 217 #define set_his_state_wont              set_my_state_dont
 218 #define set_his_want_state_dont         set_my_want_state_wont
 219 #define set_his_want_state_wont         set_my_want_state_dont
 220
 221 #if     defined(USE_TERMIO)
 222 #define SIG_FUNC_RET    void
 223 #else
 224 #define SIG_FUNC_RET    int
 225 #endif
 226
 227 #ifdef  SIGINFO
 228 extern SIG_FUNC_RET
 229     ayt_status(void);
 230 #endif
 231
 232 extern FILE
 233     *NetTrace;          /* Where debugging output goes */
 234 extern unsigned char
 235     NetTraceFile[];     /* Name of file where debugging output goes */
 236 extern void
 237     SetNetTrace(char *);        /* Function to change where debugging goes */
 238
 239 extern jmp_buf
 240     peerdied,
 241     toplevel;           /* For error conditions. */
 242
 243 extern void
 244     command(int, const char *, int),
 245     Dump(char, unsigned char *, int),
 246     env_init(void),
 247     Exit(int),
 248     ExitString(const char *, int),
 249     init_network(void),
 250     init_sys(void),
 251     init_telnet(void),
 252     init_terminal(void),
 253     intp(void),
 254     optionstatus(void),
 255     printoption(const char *, int, int),
 256     printsub(char, unsigned char *, int),
 257     quit(void),
 258     sendabort(void),
 259     sendbrk(void),
 260     sendeof(void),
 261     sendsusp(void),
 262     sendnaws(void),
 263     sendayt(void),
 264     setconnmode(int),
 265     setcommandmode(void),
 266     set_escape_char(char *s),
 267     setneturg(void),
 268     sys_telnet_init(void),
 269     telnet(char *),
 270     tel_enter_binary(int),
 271     tel_leave_binary(int),
 272     TerminalFlushOutput(void),
 273     TerminalNewMode(int),
 274     TerminalRestoreState(void),
 275     TerminalSaveState(void),
 276     TerminalDefaultChars(void),
 277     TerminalSpeeds(long *, long *),
 278     tninit(void),
 279     upcase(char *),
 280     willoption(int),
 281     wontoption(int);
 282
 283 extern void
 284     send_do(int, int),
 285     send_dont(int, int),
 286     send_will(int, int),
 287     send_wont(int, int);
 288
 289 extern void
 290     lm_will(unsigned char *, int),
 291     lm_wont(unsigned char *, int),
 292     lm_do(unsigned char *, int),
 293     lm_dont(unsigned char *, int),
 294     lm_mode(unsigned char *, int, int);
 295
 296 extern void
 297     slc_init(void),
 298     slcstate(void),
 299     slc_mode_export(void),
 300     slc_mode_import(int),
 301     slc_import(int),
 302     slc_export(void),
 303     slc(unsigned char *, int),
 304     slc_check(void),
 305     slc_start_reply(void),
 306     slc_add_reply(unsigned char, unsigned char, cc_t),
 307     slc_end_reply(void);
 308 extern int
 309     getconnmode(void),
 310     opt_welldefined(const char *),
 311     NetClose(int),
 312     netflush(void),
 313     process_rings(int, int, int, int, int, int),
 314     rlogin_susp(void),
 315     SetSockOpt(int, int, int, int),
 316     slc_update(void),
 317     stilloob(void),
 318     telrcv(void),
 319     TerminalRead(char *, int),
 320     TerminalWrite(char *, int),
 321     TerminalAutoFlush(void),
 322     TerminalWindowSize(long *, long *),
 323     TerminalSpecialChars(int),
 324     tn(int, char **),
 325     ttyflush(int);
 326
 327 extern void
 328     env_opt(unsigned char *, int),
 329     env_opt_start(void),
 330     env_opt_start_info(void),
 331     env_opt_add(unsigned char *),
 332     env_opt_end(int);
 333
 334 extern unsigned char
 335     *env_default(int, int),
 336     *env_getvalue(const unsigned char *);
 337
 338 extern int
 339     get_status(char *),
 340     dosynch(char *);
 341
 342 extern cc_t
 343     *tcval(int);
 344
 345 #ifndef USE_TERMIO
 346
 347 extern struct   tchars ntc;
 348 extern struct   ltchars nltc;
 349 extern struct   sgttyb nttyb;
 350
 351 # define termEofChar            ntc.t_eofc
 352 # define termEraseChar          nttyb.sg_erase
 353 # define termFlushChar          nltc.t_flushc
 354 # define termIntChar            ntc.t_intrc
 355 # define termKillChar           nttyb.sg_kill
 356 # define termLiteralNextChar    nltc.t_lnextc
 357 # define termQuitChar           ntc.t_quitc
 358 # define termSuspChar           nltc.t_suspc
 359 # define termRprntChar          nltc.t_rprntc
 360 # define termWerasChar          nltc.t_werasc
 361 # define termStartChar          ntc.t_startc
 362 # define termStopChar           ntc.t_stopc
 363 # define termForw1Char          ntc.t_brkc
 364 extern cc_t termForw2Char;
 365 extern cc_t termAytChar;
 366
 367 # define termEofCharp           (cc_t *)&ntc.t_eofc
 368 # define termEraseCharp         (cc_t *)&nttyb.sg_erase
 369 # define termFlushCharp         (cc_t *)&nltc.t_flushc
 370 # define termIntCharp           (cc_t *)&ntc.t_intrc
 371 # define termKillCharp          (cc_t *)&nttyb.sg_kill
 372 # define termLiteralNextCharp   (cc_t *)&nltc.t_lnextc
 373 # define termQuitCharp          (cc_t *)&ntc.t_quitc
 374 # define termSuspCharp          (cc_t *)&nltc.t_suspc
 375 # define termRprntCharp         (cc_t *)&nltc.t_rprntc
 376 # define termWerasCharp         (cc_t *)&nltc.t_werasc
 377 # define termStartCharp         (cc_t *)&ntc.t_startc
 378 # define termStopCharp          (cc_t *)&ntc.t_stopc
 379 # define termForw1Charp         (cc_t *)&ntc.t_brkc
 380 # define termForw2Charp         (cc_t *)&termForw2Char
 381 # define termAytCharp           (cc_t *)&termAytChar
 382
 383 # else
 384
 385 extern struct   termio new_tc;
 386
 387 # define termEofChar            new_tc.c_cc[VEOF]
 388 # define termEraseChar          new_tc.c_cc[VERASE]
 389 # define termIntChar            new_tc.c_cc[VINTR]
 390 # define termKillChar           new_tc.c_cc[VKILL]
 391 # define termQuitChar           new_tc.c_cc[VQUIT]
 392
 393 # ifndef        VSUSP
 394 extern cc_t termSuspChar;
 395 # else
 396 #  define termSuspChar          new_tc.c_cc[VSUSP]
 397 # endif
 398 # if    defined(VFLUSHO) && !defined(VDISCARD)
 399 #  define VDISCARD VFLUSHO
 400 # endif
 401 # ifndef        VDISCARD
 402 extern cc_t termFlushChar;
 403 # else
 404 #  define termFlushChar         new_tc.c_cc[VDISCARD]
 405 # endif
 406 # ifndef VWERASE
 407 extern cc_t termWerasChar;
 408 # else
 409 #  define termWerasChar         new_tc.c_cc[VWERASE]
 410 # endif
 411 # ifndef        VREPRINT
 412 extern cc_t termRprntChar;
 413 # else
 414 #  define termRprntChar         new_tc.c_cc[VREPRINT]
 415 # endif
 416 # ifndef        VLNEXT
 417 extern cc_t termLiteralNextChar;
 418 # else
 419 #  define termLiteralNextChar   new_tc.c_cc[VLNEXT]
 420 # endif
 421 # ifndef        VSTART
 422 extern cc_t termStartChar;
 423 # else
 424 #  define termStartChar         new_tc.c_cc[VSTART]
 425 # endif
 426 # ifndef        VSTOP
 427 extern cc_t termStopChar;
 428 # else
 429 #  define termStopChar          new_tc.c_cc[VSTOP]
 430 # endif
 431 # ifndef        VEOL
 432 extern cc_t termForw1Char;
 433 # else
 434 #  define termForw1Char         new_tc.c_cc[VEOL]
 435 # endif
 436 # ifndef        VEOL2
 437 extern cc_t termForw2Char;
 438 # else
 439 #  define termForw2Char         new_tc.c_cc[VEOL]
 440 # endif
 441 # ifndef        VSTATUS
 442 extern cc_t termAytChar;
 443 #else
 444 #  define termAytChar           new_tc.c_cc[VSTATUS]
 445 #endif
 446
 447 # if defined(__STDC__)
 448 #  define termEofCharp          &termEofChar
 449 #  define termEraseCharp        &termEraseChar
 450 #  define termIntCharp          &termIntChar
 451 #  define termKillCharp         &termKillChar
 452 #  define termQuitCharp         &termQuitChar
 453 #  define termSuspCharp         &termSuspChar
 454 #  define termFlushCharp        &termFlushChar
 455 #  define termWerasCharp        &termWerasChar
 456 #  define termRprntCharp        &termRprntChar
 457 #  define termLiteralNextCharp  &termLiteralNextChar
 458 #  define termStartCharp        &termStartChar
 459 #  define termStopCharp         &termStopChar
 460 #  define termForw1Charp        &termForw1Char
 461 #  define termForw2Charp        &termForw2Char
 462 #  define termAytCharp          &termAytChar
 463 # else
 464         /* Work around a compiler bug */
 465 #  define termEofCharp          0
 466 #  define termEraseCharp        0
 467 #  define termIntCharp          0
 468 #  define termKillCharp         0
 469 #  define termQuitCharp         0
 470 #  define termSuspCharp         0
 471 #  define termFlushCharp        0
 472 #  define termWerasCharp        0
 473 #  define termRprntCharp        0
 474 #  define termLiteralNextCharp  0
 475 #  define termStartCharp        0
 476 #  define termStopCharp         0
 477 #  define termForw1Charp        0
 478 #  define termForw2Charp        0
 479 #  define termAytCharp          0
 480 # endif
 481 #endif
 482
 483
 484 /* Ring buffer structures which are shared */
 485
 486 extern Ring
 487     netoring,
 488     netiring,
 489     ttyoring,
 490     ttyiring;
 491
 492 extern void
 493     xmitAO(void),
 494     xmitEC(void),
 495     xmitEL(void);