telnetd.tproj/defs.h

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * "Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
   7  * Reserved.  This file contains Original Code and/or Modifications of
   8  * Original Code as defined in and that are subject to the Apple Public
   9  * Source License Version 1.0 (the 'License').  You may not use this file
  10  * except in compliance with the License.  Please obtain a copy of the
  11  * License at http://www.apple.com/publicsource and read it before using
  12  * this file.
  13  *
  14  * The Original Code and all software distributed under the License are
  15  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  16  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  17  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  19  * License for the specific language governing rights and limitations
  20  * under the License."
  21  *
  22  * @APPLE_LICENSE_HEADER_END@
  23  */
  24 /*
  25  * Copyright (c) 1989, 1993
  26  *      The Regents of the University of California.  All rights reserved.
  27  *
  28  * Redistribution and use in source and binary forms, with or without
  29  * modification, are permitted provided that the following conditions
  30  * are met:
  31  * 1. Redistributions of source code must retain the above copyright
  32  *    notice, this list of conditions and the following disclaimer.
  33  * 2. Redistributions in binary form must reproduce the above copyright
  34  *    notice, this list of conditions and the following disclaimer in the
  35  *    documentation and/or other materials provided with the distribution.
  36  * 3. All advertising materials mentioning features or use of this software
  37  *    must display the following acknowledgement:
  38  *      This product includes software developed by the University of
  39  *      California, Berkeley and its contributors.
  40  * 4. Neither the name of the University nor the names of its contributors
  41  *    may be used to endorse or promote products derived from this software
  42  *    without specific prior written permission.
  43  *
  44  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  45  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  46  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  47  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  48  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  49  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  50  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  51  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  52  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  53  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  54  * SUCH DAMAGE.
  55  *
  56  *      @(#)defs.h      8.1 (Berkeley) 6/4/93
  57  */
  58
  59 /*
  60  * Telnet server defines
  61  */
  62 #include <sys/types.h>
  63 #include <sys/param.h>
  64
  65 #ifndef BSD
  66 # define        BSD 43
  67 #endif
  68
  69 #if     defined(CRAY) && !defined(LINEMODE)
  70 # define SYSV_TERMIO
  71 # define LINEMODE
  72 # define KLUDGELINEMODE
  73 # define DIAGNOSTICS
  74 # if defined(UNICOS50) && !defined(UNICOS5)
  75 #  define UNICOS5
  76 # endif
  77 # if !defined(UNICOS5)
  78 #  define BFTPDAEMON
  79 #  define HAS_IP_TOS
  80 # endif
  81 #endif /* CRAY */
  82 #if defined(UNICOS5) && !defined(NO_SETSID)
  83 # define NO_SETSID
  84 #endif
  85
  86 #if defined(PRINTOPTIONS) && defined(DIAGNOSTICS)
  87 #define TELOPTS
  88 #define TELCMDS
  89 #define SLC_NAMES
  90 #endif
  91
  92 #if     defined(SYSV_TERMIO) && !defined(USE_TERMIO)
  93 # define        USE_TERMIO
  94 #endif
  95
  96 #include <sys/socket.h>
  97 #ifndef CRAY
  98 #include <sys/wait.h>
  99 #endif  /* CRAY */
 100 #include <fcntl.h>
 101 #include <sys/file.h>
 102 #include <sys/stat.h>
 103 #include <sys/time.h>
 104 #ifndef FILIO_H
 105 #include <sys/ioctl.h>
 106 #else
 107 #include <sys/filio.h>
 108 #endif
 109
 110 #include <netinet/in.h>
 111
 112 #include <arpa/telnet.h>
 113
 114 #include <stdio.h>
 115 #ifdef  __STDC__
 116 #include <stdlib.h>
 117 #endif
 118 #include <signal.h>
 119 #include <errno.h>
 120 #include <netdb.h>
 121 #include <syslog.h>
 122 #ifndef LOG_DAEMON
 123 #define LOG_DAEMON      0
 124 #endif
 125 #ifndef LOG_ODELAY
 126 #define LOG_ODELAY      0
 127 #endif
 128 #include <ctype.h>
 129 #ifndef NO_STRING_H
 130 #include <string.h>
 131 #else
 132 #include <strings.h>
 133 #endif
 134
 135 #ifndef USE_TERMIO
 136 #include <sgtty.h>
 137 #else
 138 # ifdef SYSV_TERMIO
 139 # include <termio.h>
 140 # else
 141 #  ifdef __APPLE__
 142 #   include <sys/termios.h>
 143 #  else
 144 #   include <termios.h>
 145 #  endif
 146 # endif
 147 #endif
 148 #if !defined(USE_TERMIO) || defined(NO_CC_T)
 149 typedef unsigned char cc_t;
 150 #endif
 151
 152 #ifdef  __STDC__
 153 #include <unistd.h>
 154 #endif
 155
 156 #ifndef _POSIX_VDISABLE
 157 # ifdef VDISABLE
 158 #  define _POSIX_VDISABLE VDISABLE
 159 # else
 160 #  define _POSIX_VDISABLE ((unsigned char)'\377')
 161 # endif
 162 #endif
 163
 164
 165 #ifdef  CRAY
 166 # ifdef CRAY1
 167 # include <sys/pty.h>
 168 #  ifndef FD_ZERO
 169 # include <sys/select.h>
 170 #  endif /* FD_ZERO */
 171 # endif /* CRAY1 */
 172
 173 #include <memory.h>
 174 #endif  /* CRAY */
 175
 176 #ifdef __hpux
 177 #include <sys/ptyio.h>
 178 #endif
 179
 180 #if     !defined(TIOCSCTTY) && defined(TCSETCTTY)
 181 # define        TIOCSCTTY TCSETCTTY
 182 #endif
 183
 184 #ifndef FD_SET
 185 #ifndef HAVE_fd_set
 186 typedef struct fd_set { int fds_bits[1]; } fd_set;
 187 #endif
 188
 189 #define FD_SET(n, p)    ((p)->fds_bits[0] |= (1<<(n)))
 190 #define FD_CLR(n, p)    ((p)->fds_bits[0] &= ~(1<<(n)))
 191 #define FD_ISSET(n, p)  ((p)->fds_bits[0] & (1<<(n)))
 192 #define FD_ZERO(p)      ((p)->fds_bits[0] = 0)
 193 #endif  /* FD_SET */
 194
 195 /*
 196  * I/O data buffers defines
 197  */
 198 #define NETSLOP 64
 199 #ifdef CRAY
 200 #undef BUFSIZ
 201 #define BUFSIZ  2048
 202 #endif
 203
 204 #define NIACCUM(c)      {   *netip++ = c; \
 205                             ncc++; \
 206                         }
 207
 208 /* clock manipulations */
 209 #define settimer(x)     (clocks.x = ++clocks.system)
 210 #define sequenceIs(x,y) (clocks.x < clocks.y)
 211
 212 /*
 213  * Linemode support states, in decreasing order of importance
 214  */
 215 #define REAL_LINEMODE   0x04
 216 #define KLUDGE_OK       0x03
 217 #define NO_AUTOKLUDGE   0x02
 218 #define KLUDGE_LINEMODE 0x01
 219 #define NO_LINEMODE     0x00
 220
 221 /*
 222  * Structures of information for each special character function.
 223  */
 224 typedef struct {
 225         unsigned char   flag;           /* the flags for this function */
 226         cc_t            val;            /* the value of the special character */
 227 } slcent, *Slcent;
 228
 229 typedef struct {
 230         slcent          defset;         /* the default settings */
 231         slcent          current;        /* the current settings */
 232         cc_t            *sptr;          /* a pointer to the char in */
 233                                         /* system data structures */
 234 } slcfun, *Slcfun;
 235
 236 #ifdef DIAGNOSTICS
 237 /*
 238  * Diagnostics capabilities
 239  */
 240 #define TD_REPORT       0x01    /* Report operations to client */
 241 #define TD_EXERCISE     0x02    /* Exercise client's implementation */
 242 #define TD_NETDATA      0x04    /* Display received data stream */
 243 #define TD_PTYDATA      0x08    /* Display data passed to pty */
 244 #define TD_OPTIONS      0x10    /* Report just telnet options */
 245 #endif /* DIAGNOSTICS */
 246
 247 /*
 248  * We keep track of each side of the option negotiation.
 249  */
 250
 251 #define MY_STATE_WILL           0x01
 252 #define MY_WANT_STATE_WILL      0x02
 253 #define MY_STATE_DO             0x04
 254 #define MY_WANT_STATE_DO        0x08
 255
 256 /*
 257  * Macros to check the current state of things
 258  */
 259
 260 #define my_state_is_do(opt)             (options[opt]&MY_STATE_DO)
 261 #define my_state_is_will(opt)           (options[opt]&MY_STATE_WILL)
 262 #define my_want_state_is_do(opt)        (options[opt]&MY_WANT_STATE_DO)
 263 #define my_want_state_is_will(opt)      (options[opt]&MY_WANT_STATE_WILL)
 264
 265 #define my_state_is_dont(opt)           (!my_state_is_do(opt))
 266 #define my_state_is_wont(opt)           (!my_state_is_will(opt))
 267 #define my_want_state_is_dont(opt)      (!my_want_state_is_do(opt))
 268 #define my_want_state_is_wont(opt)      (!my_want_state_is_will(opt))
 269
 270 #define set_my_state_do(opt)            (options[opt] |= MY_STATE_DO)
 271 #define set_my_state_will(opt)          (options[opt] |= MY_STATE_WILL)
 272 #define set_my_want_state_do(opt)       (options[opt] |= MY_WANT_STATE_DO)
 273 #define set_my_want_state_will(opt)     (options[opt] |= MY_WANT_STATE_WILL)
 274
 275 #define set_my_state_dont(opt)          (options[opt] &= ~MY_STATE_DO)
 276 #define set_my_state_wont(opt)          (options[opt] &= ~MY_STATE_WILL)
 277 #define set_my_want_state_dont(opt)     (options[opt] &= ~MY_WANT_STATE_DO)
 278 #define set_my_want_state_wont(opt)     (options[opt] &= ~MY_WANT_STATE_WILL)
 279
 280 /*
 281  * Tricky code here.  What we want to know is if the MY_STATE_WILL
 282  * and MY_WANT_STATE_WILL bits have the same value.  Since the two
 283  * bits are adjacent, a little arithmatic will show that by adding
 284  * in the lower bit, the upper bit will be set if the two bits were
 285  * different, and clear if they were the same.
 286  */
 287 #define my_will_wont_is_changing(opt) \
 288                         ((options[opt]+MY_STATE_WILL) & MY_WANT_STATE_WILL)
 289
 290 #define my_do_dont_is_changing(opt) \
 291                         ((options[opt]+MY_STATE_DO) & MY_WANT_STATE_DO)
 292
 293 /*
 294  * Make everything symetrical
 295  */
 296
 297 #define HIS_STATE_WILL                  MY_STATE_DO
 298 #define HIS_WANT_STATE_WILL             MY_WANT_STATE_DO
 299 #define HIS_STATE_DO                    MY_STATE_WILL
 300 #define HIS_WANT_STATE_DO               MY_WANT_STATE_WILL
 301
 302 #define his_state_is_do                 my_state_is_will
 303 #define his_state_is_will               my_state_is_do
 304 #define his_want_state_is_do            my_want_state_is_will
 305 #define his_want_state_is_will          my_want_state_is_do
 306
 307 #define his_state_is_dont               my_state_is_wont
 308 #define his_state_is_wont               my_state_is_dont
 309 #define his_want_state_is_dont          my_want_state_is_wont
 310 #define his_want_state_is_wont          my_want_state_is_dont
 311
 312 #define set_his_state_do                set_my_state_will
 313 #define set_his_state_will              set_my_state_do
 314 #define set_his_want_state_do           set_my_want_state_will
 315 #define set_his_want_state_will         set_my_want_state_do
 316
 317 #define set_his_state_dont              set_my_state_wont
 318 #define set_his_state_wont              set_my_state_dont
 319 #define set_his_want_state_dont         set_my_want_state_wont
 320 #define set_his_want_state_wont         set_my_want_state_dont
 321
 322 #define his_will_wont_is_changing       my_do_dont_is_changing
 323 #define his_do_dont_is_changing         my_will_wont_is_changing