src/acconfig.h

   1 /* Copyright (c) 1993-2000
   2  *      Juergen Weigert (jnweiger@immd4.informatik.uni-erlangen.de)
   3  *      Michael Schroeder (mlschroe@immd4.informatik.uni-erlangen.de)
   4  * Copyright (c) 1987 Oliver Laumann
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 3, or (at your option)
   9  * any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program (see the file COPYING); if not, see
  18  * http://www.gnu.org/licenses/, or contact Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA  02111-1301  USA
  20  *
  21  ****************************************************************
  22  * $Id$ FAU
  23  */
  24
  25
  26
  27
  28
  29 /**********************************************************************
  30  *
  31  *      User Configuration Section
  32  */
  33
  34 /*
  35  * Maximum of simultaneously allowed windows per screen session.
  36  */
  37 #ifndef MAXWIN
  38 # define MAXWIN 40
  39 #endif
  40
  41 /*
  42  * Define SOCKDIR to be the directory to contain the named sockets
  43  * screen creates. This should be in a common subdirectory, such as
  44  * /usr/local or /tmp. It makes things a little more secure if you
  45  * choose a directory which is not writable by everyone or where the
  46  * "sticky" bit is on, but this isn't required.
  47  * If SOCKDIR is not defined screen will put the named sockets in
  48  * the user's home directory. Notice that this can cause you problems
  49  * if some user's HOME directories are AFS- or NFS-mounted. Especially
  50  * AFS is unlikely to support named sockets.
  51  *
  52  * Screen will name the subdirectories "S-$USER" (e.g /tmp/S-davison).
  53  */
  54 #undef SOCKDIR
  55
  56 /*
  57  * Define this if the SOCKDIR is not shared between hosts.
  58  */
  59 #define SOCKDIR_IS_LOCAL_TO_HOST
  60
  61 /*
  62  * Screen can look for the environment variable $SYSSCREENRC and -if it
  63  * exists- load the file specified in that variable as global screenrc.
  64  * If you want to enable this feature, define ALLOW_SYSSCREENRC to one (1).
  65  * Otherwise ETCSCREENRC is always loaded.
  66  */
  67 #define ALLOW_SYSSCREENRC 1
  68
  69 /*
  70  * Define CHECKLOGIN to force Screen users to enter their Unix password
  71  * in addition to the screen password.
  72  *
  73  * Define NOSYSLOG if yo do not have logging facilities. Currently
  74  * syslog() will be used to trace ``su'' commands only.
  75  */
  76 #define CHECKLOGIN 1
  77 #undef NOSYSLOG
  78
  79
  80 /*
  81  * define PTYMODE if you do not like the default of 0622, which allows
  82  * public write to your pty.
  83  * define PTYGROUP to some numerical group-id if you do not want the
  84  * tty to be in "your" group.
  85  * Note, screen is unable to change mode or group of the pty if it
  86  * is not installed with sufficient privilege. (e.g. set-uid-root)
  87  * define PTYROFS if the /dev/pty devices are mounted on a read-only
  88  * filesystem so screen should not even attempt to set mode or group
  89  * even if running as root (e.g. on TiVo).
  90  */
  91 #undef PTYMODE
  92 #undef PTYGROUP
  93 #undef PTYROFS
  94
  95 /*
  96  * If screen is NOT installed set-uid root, screen can provide tty
  97  * security by exclusively locking the ptys.  While this keeps other
  98  * users from opening your ptys, it also keeps your own subprocesses
  99  * from being able to open /dev/tty.  Define LOCKPTY to add this
 100  * exclusive locking.
 101  */
 102 #undef LOCKPTY
 103
 104 /*
 105  * If you'd rather see the status line on the first line of your
 106  * terminal rather than the last, define TOPSTAT.
 107  */
 108 #undef TOPSTAT
 109
 110 /*
 111  * define DETACH can detach a session. An absolute 'must'.
 112  */
 113 #define DETACH
 114
 115 /*
 116  * here come the erlangen extensions to screen:
 117  * define LOCK if you want to use a lock program for a screenlock.
 118  * define PASSWORD for secure reattach of your screen.
 119  * define COPY_PASTE to use the famous hacker's treasure zoo.
 120  * define POW_DETACH to have a detach_and_logout key (requires DETACH).
 121  * define REMOTE_DETACH (-d option) to move screen between terminals.
 122  * define AUTO_NUKE to enable Tim MacKenzies clear screen nuking
 123  * define PSEUDOS to allow window input/output filtering
 124  * define MULTI to allow multiple attaches.
 125  * define MULTIUSER to allow other users attach to your session
 126  *                  (if they are in the acl, of course)
 127  * define MAPKEYS to include input keyboard translation.
 128  * define FONT to support ISO2022/alternet charset support
 129  * define COLOR to include ansi color support. This may expose
 130  *        a bug in x11r6-color-xterm.
 131  * define DW_CHARS to include support for double-width character
 132  *        sets.
 133  * define ENCODINGS to include support for encodings like euc or big5.
 134  *        Needs FONT to work.
 135  * define UTF8 if you want support for UTF-8 encoding.
 136  *        Needs FONT and ENCODINGS to work.
 137  * define COLORS16 if you want 16 colors.
 138  *        Needs COLOR to work.
 139  * define BUILTIN_TELNET to add telnet support to screen.
 140  *        Syntax: screen //telnet host [port]
 141  * define RXVT_OSC if you want support for rxvts special
 142  *        change fgcolor/bgcolor/bgpicture sequences
 143  * define SCRIPT to add scripting support to screen.
 144  */
 145 #undef SIMPLESCREEN
 146 #ifndef SIMPLESCREEN
 147 # define LOCK
 148 # define PASSWORD
 149 # define COPY_PASTE
 150 # define REMOTE_DETACH
 151 # define POW_DETACH
 152 # define AUTO_NUKE
 153 # define PSEUDOS
 154 # define MULTI
 155 # define MULTIUSER
 156 # define MAPKEYS
 157 # define COLOR
 158 # define FONT
 159 # define DW_CHARS
 160 # define ENCODINGS
 161 # define UTF8
 162 # define COLORS16
 163 # define ZMODEM
 164 # define BLANKER_PRG
 165 # define SCRIPT
 166 #endif /* SIMPLESCREEN */
 167
 168 #undef BUILTIN_TELNET
 169 #undef RXVT_OSC
 170 #undef COLORS256
 171
 172
 173 /*
 174  * If you have a braille display you should define HAVE_BRAILLE.
 175  * The code inside #ifdef HAVE_BRAILLE was contributed by Hadi Bargi
 176  * Rangin (bargi@dots.physics.orst.edu).
 177  * WARNING: this is more or less unsupported code, it may be full of
 178  * bugs leading to security holes, enable at your own risk!
 179  */
 180 #undef HAVE_BRAILLE
 181
 182
 183 /*
 184  * As error messages are mostly meaningless to the user, we
 185  * try to throw out phrases that are somewhat more familiar
 186  * to ...well, at least familiar to us NetHack players.
 187  */
 188 #ifndef NONETHACK
 189 # define NETHACK
 190 #endif /* NONETHACK */
 191
 192 /*
 193  * If screen is installed with permissions to update /etc/utmp (such
 194  * as if it is installed set-uid root), define UTMPOK.
 195  */
 196 #define UTMPOK
 197
 198 /* Set LOGINDEFAULT to one (1)
 199  * if you want entries added to /etc/utmp by default, else set it to
 200  * zero (0).
 201  * LOGINDEFAULT will be one (1) whenever LOGOUTOK is undefined!
 202  */
 203 #define LOGINDEFAULT    1
 204
 205 /* Set LOGOUTOK to one (1)
 206  * if you want the user to be able to log her/his windows out.
 207  * (Meaning: They are there, but not visible in /etc/utmp).
 208  * Disabling this feature only makes sense if you have a secure /etc/utmp
 209  * database.
 210  * Negative examples: suns usually have a world writable utmp file,
 211  * xterm will run perfectly without s-bit.
 212  *
 213  * If LOGOUTOK is undefined and UTMPOK is defined, all windows are
 214  * initially and permanently logged in.
 215  *
 216  * Set CAREFULUTMP to one (1) if you want that users have at least one
 217  * window per screen session logged in.
 218  */
 219 #define LOGOUTOK 1
 220 #undef CAREFULUTMP
 221
 222
 223 /*
 224  * If UTMPOK is defined and your system (incorrectly) counts logins by
 225  * counting non-null entries in /etc/utmp (instead of counting non-null
 226  * entries with no hostname that are not on a pseudo tty), define USRLIMIT
 227  * to have screen put an upper-limit on the number of entries to write
 228  * into /etc/utmp.  This helps to keep you from exceeding a limited-user
 229  * license.
 230  */
 231 #undef USRLIMIT
 232
 233 /*
 234  * both must be defined if you want to favor tcsendbreak over
 235  * other calls to generate a break condition on serial lines.
 236  * (Do not bother, if you are not using plain tty windows.)
 237  */
 238 #define POSIX_HAS_A_GOOD_TCSENDBREAK
 239 #define SUNOS4_AND_WE_TRUST_TCSENDBREAK
 240
 241 /*
 242  * to lower the interrupt load on the host machine, you may want to
 243  * adjust the VMIN and VTIME settings used for plain tty windows.
 244  * See the termio(4) manual page (Non-Canonical Mode Input Processing)
 245  * for details.
 246  * if undefined, VMIN=1, VTIME=0 is used as a default - this gives you
 247  * best user responsiveness, but highest interrupt frequency.
 248  * (Do not bother, if you are not using plain tty windows.)
 249  */
 250 #define TTYVMIN 100
 251 #define TTYVTIME 2
 252
 253 /*
 254  * looks like the above values are ignored by setting FNDELAY.
 255  * This is default for all pty/ttys, you may disable it for
 256  * ttys here. After playing with it for a while, one may find out
 257  * that this feature may cause screen to lock up.
 258  */
 259 #ifdef bsdi
 260 # define TTY_DISABLE_FNBLOCK /* select barfs without it ... */
 261 #endif
 262
 263
 264 /*
 265  * Some terminals, e.g. Wyse 120, use a bitfield to select attributes.
 266  * This doesn't work with the standard so/ul/m? terminal entries,
 267  * because they will cancel each other out.
 268  * On TERMINFO machines, "sa" (sgr) may work. If you want screen
 269  * to switch attributes only with sgr, define USE_SGR.
 270  * This is *not* recomended, do this only if you must.
 271  */
 272 #undef USE_SGR
 273
 274
 275 /*
 276  * Define USE_LOCALE if you want screen to use the locale names
 277  * for the name of the month and day of the week.
 278  */
 279 #define USE_LOCALE
 280
 281 /*
 282  * Define USE_PAM if your system supports PAM (Pluggable Authentication
 283  * Modules) and you want screen to use it instead of calling crypt().
 284  * (You may also need to add -lpam to LIBS in the Makefile.)
 285  */
 286 #undef USE_PAM
 287
 288 /*
 289  * Define CHECK_SCREEN_W if you want screen to set TERM to screen-w
 290  * if the terminal width is greater than 131 columns. No longer needed
 291  * on modern systems which use $COLUMNS or the tty settings instead.
 292  */
 293 #undef CHECK_SCREEN_W
 294
 295 /**********************************************************************
 296  *
 297  *      End of User Configuration Section
 298  *
 299  *      Rest of this file is modified by 'configure'
 300  *      Change at your own risk!
 301  *
 302  */
 303
 304 /*
 305  * Some defines to identify special unix variants
 306  */
 307 #ifndef SVR4
 308 #undef SVR4
 309 #endif
 310
 311 /* #ifndef __osf__ */
 312 #ifndef MIPS
 313 #undef MIPS
 314 #endif
 315 /* #endif */
 316
 317 #ifndef OSX
 318 #undef OSX
 319 #endif
 320
 321 #ifndef ISC
 322 #undef ISC
 323 #endif
 324
 325 #ifndef sysV68
 326 #undef sysV68
 327 #endif
 328
 329 #ifndef _POSIX_SOURCE
 330 #undef _POSIX_SOURCE
 331 #endif
 332
 333 /*
 334  * Define POSIX if your system supports IEEE Std 1003.1-1988 (POSIX).
 335  */
 336 #undef POSIX
 337
 338 /*
 339  * Define BSDJOBS if you have BSD-style job control (both process
 340  * groups and a tty that deals correctly with them).
 341  */
 342 #undef BSDJOBS
 343
 344 /*
 345  * Define TERMIO if you have struct termio instead of struct sgttyb.
 346  * This is usually the case for SVID systems, where BSD uses sgttyb.
 347  * POSIX systems should define this anyway, even though they use
 348  * struct termios.
 349  */
 350 #undef TERMIO
 351
 352 /*
 353  * Define CYTERMIO if you have cyrillic termio modes.
 354  */
 355 #undef CYTERMIO
 356
 357 /*
 358  * Define TERMINFO if your machine emulates the termcap routines
 359  * with the terminfo database.
 360  * Thus the .screenrc file is parsed for
 361  * the command 'terminfo' and not 'termcap'.
 362  */
 363 #undef TERMINFO
 364
 365 /*
 366  * If your library does not define ospeed, define this.
 367  */
 368 #undef NEED_OSPEED
 369
 370 /*
 371  * Define SYSV if your machine is SYSV complient (Sys V, HPUX, A/UX)
 372  */
 373 #ifndef SYSV
 374 #undef SYSV
 375 #endif
 376
 377 /*
 378  * Define SIGVOID if your signal handlers return void.  On older
 379  * systems, signal returns int, but on newer ones, it returns void.
 380  */
 381 #undef SIGVOID
 382
 383 /*
 384  * Define USESIGSET if you have sigset for BSD 4.1 reliable signals.
 385  */
 386 #undef USESIGSET
 387
 388 /*
 389  * Define SYSVSIGS if signal handlers must be reinstalled after
 390  * they have been called.
 391  */
 392 #undef SYSVSIGS
 393
 394 /*
 395  * Define BSDWAIT if your system defines a 'union wait' in <sys/wait.h>
 396  *
 397  * Only allow BSDWAIT i.e. wait3 on nonposix systems, since
 398  * posix implies wait(3) and waitpid(3). vdlinden@fwi.uva.nl
 399  *
 400  */
 401 #ifndef POSIX
 402 #undef BSDWAIT
 403 #endif
 404
 405 /*
 406  * On RISCOS we prefer wait2() over wait3(). rouilj@sni-usa.com
 407  */
 408 #ifdef BSDWAIT
 409 #undef USE_WAIT2
 410 #endif
 411
 412 /*
 413  * If your system has getutent(), pututline(), etc. to write to the
 414  * utmp file, define GETUTENT.
 415  */
 416 #undef GETUTENT
 417
 418 /*
 419  * Define UTHOST if the utmp file has a host field.
 420  */
 421 #undef UTHOST
 422
 423 /*
 424  * Define if you have the utempter utmp helper program
 425  */
 426 #undef HAVE_UTEMPTER
 427
 428 /*
 429  * If ttyslot() breaks getlogin() by returning indexes to utmp entries
 430  * of type DEAD_PROCESS, then our getlogin() replacement should be
 431  * selected by defining BUGGYGETLOGIN.
 432  */
 433 #undef BUGGYGETLOGIN
 434
 435 /*
 436  * If your system has the calls setreuid() and setregid(),
 437  * define HAVE_SETREUID. Otherwise screen will use a forked process to
 438  * safely create output files without retaining any special privileges.
 439  */
 440 #undef HAVE_SETRESUID
 441 #undef HAVE_SETREUID
 442
 443 /*
 444  * If your system supports BSD4.4's seteuid() and setegid(), define
 445  * HAVE_SETEUID.
 446  */
 447 #undef HAVE_SETEUID
 448
 449 /*
 450  * If you want the "time" command to display the current load average
 451  * define LOADAV. Maybe you must install screen with the needed
 452  * privileges to read /dev/kmem.
 453  * Note that NLIST_ stuff is only checked, when getloadavg() is not available.
 454  */
 455 #undef LOADAV
 456
 457 #undef LOADAV_NUM
 458 #undef LOADAV_TYPE
 459 #undef LOADAV_SCALE
 460 #undef LOADAV_GETLOADAVG
 461 #undef LOADAV_UNIX
 462 #undef LOADAV_AVENRUN
 463 #undef LOADAV_USE_NLIST64
 464
 465 #undef NLIST_DECLARED
 466 #undef NLIST_STRUCT
 467 #undef NLIST_NAME_UNION
 468
 469 /*
 470  * If your system has the new format /etc/ttys (like 4.3 BSD) and the
 471  * getttyent(3) library functions, define GETTTYENT.
 472  */
 473 #undef GETTTYENT
 474
 475 /*
 476  * Define USEBCOPY if the bcopy/memcpy from your system's C library
 477  * supports the overlapping of source and destination blocks.  When
 478  * undefined, screen uses its own (probably slower) version of bcopy().
 479  *
 480  * SYSV machines may have a working memcpy() -- Oh, this is
 481  * quite unlikely. Tell me if you see one.
 482  * "But then, memmove() should work, if at all available" he thought...
 483  * Boing, never say "works everywhere" unless you checked SCO UNIX.
 484  * Their memove fails the test in the configure script. Sigh. (Juergen)
 485  */
 486 #undef USEBCOPY
 487 #undef USEMEMCPY
 488 #undef USEMEMMOVE
 489
 490 /*
 491  * If your system has vsprintf() and requires the use of the macros in
 492  * "varargs.h" to use functions with variable arguments,
 493  * define USEVARARGS.
 494  */
 495 #undef USEVARARGS
 496
 497 /*
 498  * If the select return value doesn't treat a descriptor that is
 499  * usable for reading and writing as two hits, define SELECT_BROKEN.
 500  */
 501 #undef SELECT_BROKEN
 502
 503 /*
 504  * Define this if your system supports named pipes.
 505  */
 506 #undef NAMEDPIPE
 507
 508 /*
 509  * Define this if your system exits select() immediatly if a pipe is
 510  * opened read-only and no writer has opened it.
 511  */
 512 #undef BROKEN_PIPE
 513
 514 /*
 515  * Define this if the unix-domain socket implementation doesn't
 516  * create a socket in the filesystem.
 517  */
 518 #undef SOCK_NOT_IN_FS
 519
 520 /*
 521  * If your system has setenv() and unsetenv() define USESETENV
 522  */
 523 #undef USESETENV
 524
 525 /*
 526  * If setenv() takes 3 arguments sefine HAVE_SETENV_3
 527  */
 528 #undef HAVE_SETENV_3
 529
 530 /*
 531  * If setenv() takes 2 arguments sefine HAVE_SETENV_2
 532  */
 533 #undef HAVE_SETENV_2
 534
 535 /*
 536  * If your system does not come with a setenv()/putenv()/getenv()
 537  * functions, you may bring in our own code by defining NEEDPUTENV.
 538  */
 539 #undef NEEDPUTENV
 540
 541 /*
 542  * If the passwords are stored in a shadow file and you want the
 543  * builtin lock to work properly, define SHADOWPW.
 544  */
 545 #undef SHADOWPW
 546
 547 /*
 548  * define HAVE_NL_LANGINFO if your system has the nl_langinfo() call
 549  * and <langinfo.h> defines CODESET.
 550  */
 551 #undef HAVE_NL_LANGINFO
 552
 553 /*
 554  * Newer versions of Solaris include fdwalk, which can greatly improve
 555  * the startup time of screen; otherwise screen spends a lot of time
 556  * closing file descriptors.
 557  */
 558 #undef HAVE_FDWALK
 559
 560 /*
 561  * define HAVE_DEV_PTC if you have a /dev/ptc character special
 562  * device.
 563  */
 564 #undef HAVE_DEV_PTC
 565
 566 /*
 567  * define HAVE_SVR4_PTYS if you have a /dev/ptmx character special
 568  * device and support the ptsname(), grantpt(), unlockpt() functions.
 569  */
 570 #undef HAVE_SVR4_PTYS
 571
 572 /*
 573  * define PTYRANGE0 and or PTYRANGE1 if you want to adapt screen
 574  * to unusual environments. E.g. For SunOs the defaults are "qpr" and
 575  * "0123456789abcdef". For SunOs 4.1.2
 576  * #define PTYRANGE0 "pqrstuvwxyzPQRST"
 577  * is recommended by Dan Jacobson.
 578  */
 579 #undef PTYRANGE0
 580 #undef PTYRANGE1
 581