| blob | 5776d88a90ab722d7ad74a51e9583e855a5aab42 |
1 /* Copyright (c) 1993-2002
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 */
25 /****************************************************************
26 *
27 * patchlevel.h: Our life story.
28 *
29 * 08.07.91 -- 3.00.01 -wipe and a 'setenv TERM dumb' bugfix.
30 * 17.07.91 -- 3.00.02 another patchlevel by Wayne Davison
31 * 31.07.91 -- 3.00.03 E0, S0, C0 for flexible semi-graphics, nonblocking
32 * window title input and 'C-a :' command input.
33 * 10.08.91 -- 3.00.04 scrollback, markkeys and some bugfixes.
34 * 13.08.91 -- 3.00.05 mark routine improved, ansi prototypes added.
35 * 20.08.91 -- 3.00.06 screen -h, faster GotoPos in overlay, termcap %.
36 * instead of %c
37 * 28.08.91 -- 3.00.07 environment variable support. security. terminfo.
38 * pyramid and ultrix support.
39 * 07.09.91 -- 3.00.99 secopen(), MIPS support, SVR4 support.
40 * 09.09.91 -- 3.01.00 backspace bug fixed.
41 * 03.10.91 -- 3.01.01 ansi.c: null-ptr fixed, CLS now saves to scrollback.
42 * Using setresuid on hpux. Memory leak fixed.
43 * Better GotoPos(). Support for IC. Another resize bug.
44 * Detach() w/o fore crashed. -T and -A(dapt) option.
45 * GNU copyleft.
46 * 19.12.91 -- 3.01.02 flow now really automatic (autoflow killed).
47 * 7 bit restriction removed from WriteString().
48 * 09.01.92 -- 3.01.03 flow reattach bug fixed. VDISCARD bug fixed.
49 * 13.01.92 -- 3.01.04 new flow concept: ^Af toggles now three states
50 * 21.01.92 -- 3.01.05 '^A:screen 11' bug fixed. aflag in DoScreen().
51 * Some code cleanup. attach_tty and display_tty[]
52 * added.
53 * 26.01.92 -- 3.01.06 apollo support, "hardcopy_append on", "bufferfile",
54 * SECURITY PROBLEM cleared..
55 * 28.01.92 -- 3.01.07 screen after su allowed. Pid became part of
56 * SockName. sysvish 14 character restriction considered.
57 * 31.01.92 -- 3.02.00 Ultrix port, Irix 3.3 SGI port, shadow pw support,
58 * data loss on stdin overflow fixed. "refresh off".
59 * 12.02.92 -- 3.02.02 stripdev() moved, -S introduced, bufferfile improved,
60 * ShellProg coredump cleared. SVR4 bugfixes.
61 * I/O code speedup added.
62 * 24.04.92 -- 3.02.03 perfectly stackable overlays. One scrollback per window,
63 * not per display.
64 * 05.05.92 -- 3.02.04 very nasty initialisation bug fixed.
65 * 09.05.92 -- 3.02.05 parsing for $:cl: termcap strings and \012 octal notation
66 * in screenrc file. More structuring. Detached startup
67 * with 'screen -d -m -S...' bugfixed.
68 * 11.05.92 -- 3.02.06 setreuid() bugs cleared, C-a : setenv added.
69 * "xn" capability in TERMCAP needed since "am" is there.
70 * 25.06.92 -- 3.02.07 The multi display test version. Have merci.
71 * 15.07.92 -- 3.02.08 :B8: supports automatic charset switching for 8-bit
72 * 26.09.92 -- 3.02.09 Ported to linux. Ignoring bad files in $SCREENDIR
73 * 22.10.92 -- 3.02.10 screen.c/ansi.c splitted in several pieces.
74 * Better ISearch. Cleanup of loadav.c
75 * 29.10.92 -- 3.02.11 Key mechanism rewritten. New command names.
76 * New iscreenrc syntax.
77 * 02.11.92 -- 3.02.12 'bind g copy_reg' and 'bind x ins_reg' as suggested by
78 * stillson@tsfsrv.mitre.org (Ken Stillson).
79 * 03.11.92 -- 3.02.13 Ported to SunOs 4.1.2. Gulp. Some NULL ptrs fixed and
80 * misc. braindamage fixed.
81 * 03.11.92 -- 3.02.14 Argument number checking, AKA fixed.
82 * 05.11.92 -- 3.02.15 Memory leaks in Detach() and KillWindow() fixed.
83 * Lockprg powerdetaches on SIGHUP.
84 * 12.11.92 -- 3.02.16 Introduced two new termcaps: "CS" and "CE".
85 * (Switch cursorkeys in application mode)
86 * Tim's async output patch.
87 * Fixed an ugly bug in WriteString().
88 * New command: 'process'
89 * 16.11.92 -- 3.02.17 Nuking unsent tty output is now optional, (toxic
90 * ESC radiation).
91 * 30.11.92 -- 3.02.18 Lots of multi display bugs fixed. New layer
92 * function 'Restore'. MULTIUSER code cleanup.
93 * Rudimental acls added for multiuser.
94 * No more error output, when output gives write errors.
95 * 02.12.92 -- 3.02.19 BROKEN_PIPE and SOCK_NOT_IN_FS defines added for
96 * braindead systems. Bug in recover socket code fixed.
97 * Can create windows again from shell.
98 * 22.12.92 -- 3.02.20 Made a superb configure script. STY and break fixed.
99 * 01.02.93 -- 3.02.21 Coredump bug fixed: 8-bit output in background windows.
100 * Console grabbing somewhat more useable.
101 * 23.02.93 -- 3.02.22 Added ^:exec command, but not tested at all.
102 * 23.02.93 -- 3.02.23 Added 'hardcopydir' and 'logdir' commands.
103 * 11.03.93 -- 3.02.24 Prefixed display and window structure elements.
104 * Screen now handles autowrapped lines correctly
105 * in the redisplay and mark function.
106 * 19.03.93 -- 3.03.00 Patched for BSD386. pseudos work.
107 * 31.03.93 -- 3.03.01 Don't allocate so much empty attr and font lines.
108 * 04.04.93 -- 3.03.02 fixed :exec !..| less and :|less, patched BELL_DONE &
109 * ^B/^F. Fixed auto_nuke attribute resetting. Better linux
110 * configure. ^AW shows '&' when window has other attacher.
111 * MAXWIN > 10 patch. KEEP_UNDEF in config.h.in, shellaka
112 * bug fixed. dec alpha port. Solaris port.
113 * 02.05.93 -- 3.03.03 Configure tweaked for sgi. Update environment with
114 * setenv command. Silence on|off, silencewait <sec>,
115 * defautonuke commands added. Manual page updated.
116 * 13.05.93 -- 3.03.04 exit in newsyntax script, finished _CX_UX port.
117 * Texinfo page added by Jason Merrill. Much longish debug
118 * output removed. Select window by title (or number).
119 * 16.06.93 -- 3.04.00 Replaced ^A- by ^A^H to be complementary to ^A SPACE.
120 * Moved into CVS. Yacc.
121 * 28.06.93 -- 3.04.01 Fixed selecting windows with numeric title. Silence
122 * now works without nethackoption set.
123 * 01.07.93 -- 3.04.02 Implementing real acls.
124 * 22.07.93 -- 3.05.00 Fixed SVR4, some multiuser bugs, -- DISTRIBUTED
125 * 05.08.93 -- 3.05.01 ${srcdir} feature added. Shellprog bug fixed.
126 * Motorola reattach bug fixed. Writelock bug fixed.
127 * Copybuffer moved into struct acluser. Configure.in
128 * uglified for Autoconf1.5. Paste may now have an
129 * argument. Interactive setenv. Right margin bug
130 * fixed. IRIX 5 patches. -- DISTRIBUTED
131 * 13.08.93 -- 3.05.02 ultrix support added. expand_vars removed from
132 * register function. Paste bug fixed.
133 * sysmacros.h now included in pty.c on sgis
134 * Strange hpux hack added for TTYCMP.
135 * Zombie feature improved.
136 * 08.09.93 -- 3.05.03 Makefile and OSF1 fine tuning. Eased attach to
137 * multi sessions. Writelock now obeys acl write
138 * permissions. UserDel() now preserves defaults.
139 * acladd/aclchg syntax improved. Updated
140 * documentation. Bug in at command fixed.
141 * MakeWindow() now obeys perm defaults.
142 * 03.10.93 -- 3.05.90 Multiple displays can now share the same window.
143 * Layers now belong to Windows. "Select -" yields a blank
144 * page. Debug output can be switched on/off at runtime.
145 * Number command changes window number and utmp-slot.
146 * 14.10.93 -- 3.05.91 Mechanism to find the "best" window added. Much
147 * debugging done and still needed. Slowpaste setting now
148 * per window. Preserving fore AND other window when
149 * detached. Per user settings for `monitor' and `silence'.
150 * New command `su'. BlankWindow performs now ColonInput.
151 * History command fixed, it depended on paste code that
152 * was previously changed to allow concatenation of buffers.
153 * Fixing umask problem with WriteFile() reported by Jamie
154 * Mason.
155 * 30.11.93 -- 3.05.04 Kanji support added. New keymap feature:
156 * bindkey and various map commands. GR and C1
157 * flags now define the character processing.
158 * 30.11.93 -- 3.05.92 Kanji support added. New keymap feature:
159 * bindkey and various map commands. GR and C1
160 * flags now define the character processing.
161 * 17.12.93 -- 3.05.93 Tcon authentification mechanism. AddChar macro broken up
162 * into 2 functions. Acl.c, network.c, misc.c, termcap.c
163 * and tty.c are now display free!
164 * 27.12.93 -- 3.05.94 Telnet login works, can export one window per mux.
165 * Acl-groups added. Export rights is an acl.
166 * connect works, can create shadow window thus import
167 * command channel and switch windows. Can detach sessions
168 * from each other. Can renumber imported and exported
169 * windows. DL_LOOP prevents now SEGV, sessions have names
170 * and can be connected to very flexible.
171 * 03.01.94 -- 3.05.95 Import and export of any number of channels works,
172 * except a small bug with margin handling when exporting.
173 * Window titles are forwarded, break is forwarded and
174 * tcon learned the mux protocoll. A few more bugs in
175 * network.c fixed. Tcon has Mux arrays, Protocoll is '\0'
176 * free.
177 * 08.01.94 -- 3.05.96 More tcon work. Solaris debugging.
178 *
179 * 14.01.94 -- 3.05.05 New FindSocket() code. Nicer socket handling.
180 * 20.01.94 -- 3.05.06 New attribute handling code. NeXT fixes.
181 * 04.02.94 -- 3.05.07 Ugly bug in ScrollH fixed. Keymap defaults.
182 * 10.03.94 -- 3.05.97 'defsilence' by Lloyd Zusman. Zombie resurrekt key.
183 * -b, -p options. Fixed Compilekeys(), gulp. config.h
184 * allows choice of VMIN/VTIME/NDELAY for ttys.
185 * 13.04.94 -- 3.05.08 Kanji bug fixed. POSIX sigaction support.
186 * os.h cleanup. UTNOKEEP splitted into
187 * UT_CLOSE and UT_UNSORTED. linux no longer
188 * implies UT_CLOSE. "struct display" name
189 * convention change: _d_ to d_ and d_ to D_.
190 * 20.04.94 -- 3.05.09 configure.in ptyrange bug fixed. Upgraded
191 * to autoconf-1.8
192 * 27.04.94 -- 3.05.10 97801 obscure code support. Linux long
193 * password workaround.
194 * 09.05.94 -- 3.05.11 seteuid() support added. Security fixes.
195 * _IBMR2 kludge makes call to sleep obsolete.
196 * Small fixes in uname() code. djm suggests replace of
197 * BSDI by __bsdi__.
198 * 27.07.94 -- 3.05.12 seteuid attacher bug fixed. ks/ke changed
199 * in termcap/info and termcap.c
200 * 01.09.94 -- 3.05.58 (There are a few more patches to come, subtracted 40)
201 * breaktype command to select how we cause breaks.
202 * Testing logfile.c. Manual and texinfo documentation
203 * updated to explain all new commands except keymapping.
204 * Added modem lines to info of plain ttys. Using
205 * cfset{i,o}speed() for POSIX is better, much better.
206 * 07.09.94 -- 3.05.59 Flushing logfiles every 5 seconds. Testing new
207 * resize linewrap code. Resize with care.
208 * Resurrect now displays its command string.
209 * 11.09.94 -- 3.05.60 Lines are now correctly wrapped, when window size
210 * changes; this prevents loss of text.
211 * 15.09.94 -- 3.05.61 umask renamed to aclumask, bell renamed to bell_msg.
212 * *_msg commands show message when called w/o parameter.
213 * Many changes in the manual, thanks to Sven Guckes.
214 * -O removed.
215 * 27.09.94 -- 3.05.13 defwlock stupidity fixed. MakeTermcap ks/ke
216 * ':' removed. Termcap entry improved.
217 * copy_reg and ins_reg obsoleted by better paste command:
218 * paste => paste .
219 * copy_reg r => paste . r
220 * ins_reg r => paste r
221 * ins_reg => paste
222 * 18.10.94 -- 3.05.62 breaktype changed. -L option added to enable logging
223 * from both command line and screenrc. SIGXFSZ ignored.
224 * 28.11.94 -- 3.05.63 ACL's sharpened. No user has any rights, unless
225 * explicitly given. Only two exceptions: 1) "acladd user"
226 * without further parameters. 2) Evry user has a default
227 * umask that gives himself all permissions on the windows
228 * he creates. Bug with colon input on shared windows fixed.
229 * The commad is now executed by the user typing the final
230 * Enter-Key rather by a random user.
231 * 30.11.94 -- 3.05.64 On demand grabbing of pending auto writelocks.
232 * Solaris troubles us with kill(pid, 0) ... not fixed...
233 * defbreaktype added. (breaktype is also global, still...)
234 * SIGARGHACK cleared, to pamper poor little Ultrix4.4 cfe.
235 * defescape added.
236 * w_status changed to w_hstatus, it's a #define in
237 * Domain/OS reported by ejackson@iastate.edu.
238 * 05.12.94 -- 3.05.17 SVR4 pty bug fixed, don't update window status
239 * line if not changed, onyx support. Manual
240 * pages updated.
241 * 14.12.94 -- 3.05.18 w_status changed to w_hstatus, it's a #define in
242 * Domain/OS reported by ejackson@iastate.edu.
243 * Screen manpage patches by larry.
244 * Ugly seteuid bug in ForkWindow() fixed.
245 * 20.12.94 -- 3.06.00 Solaris has broken seteuid().
246 * osf loadav patches. -- DISTRIBUTED
247 * 08.01.95 -- 3.05.65 Bug with LOGOUTOK and -ln fixed. redundant secfopen()
248 * avoided, when logfflush() looks at delayed nfs updates.
249 * Option parser now allowes condensed options. -A fixed.
250 * New commands 'preselect' and 'defpreselect'. New option
251 * -WdmS starts a detached screen session with watchdog.
252 * 16.01.95 -- 3.06.01 KANJI patch. doc/Makefile.in fixed.
253 * Install now calls doc/Makefile install.
254 * Don't use 'ds' too often, breaks MSkermit.
255 * undef'd LOGOUTOK logs in now.
256 * Ultrix is broken, too (seteuid).
257 * Use \r (not \n) to join lines in pastebuf.
258 * bindkey can now remove sequences.
259 * InitTTY fixed for PLAIN. -- DISTRIBUTED
260 * 06.02.95 -- 3.05.66 DisplayLine() does now clipping to reduce coredump-
261 * frequency. Window size is adapted to the display that
262 * types input, to reduce multi-user confusion. Scrollback
263 * mode still may get the wrong size.
264 * 07.02.95 -- 3.05.67 WinRewrite() also needs to clip. Users without unix
265 * account, but with screen password allowed. Chacl
266 * allows password change, su prompts for user name too.
267 * 01.03.95 -- 3.05.68 Leaving a window may now cause a resize to match a
268 * remaining display. Simple ESC-CR fix in the vt100
269 * state machine.
270 * 26.03.95 -- 3.05.69 Markroutine() needs to resize the window to avoid
271 * coredumps, just like WinProcess() already does.
272 * More NEED_ flags added in comm.c to avoid coredumps.
273 * 04.04.95 -- 3.06.02 Simple ESC-CR fix in the vt100 state machine.
274 * Now compiles again with all extras disabled.
275 * Zombie resurrect added. defc1, defgr, defkanji
276 * added. Screen now replies to a secondary DA
277 * query. Some missing NEED_XXX added in comm.c.
278 * Better default tty permissions/group test.
279 * More AUX support, now compiles with POSIX.
280 * Function keycodes xtermified (F11, F12).
281 * Paste bug fixed (only worked with KANJI).
282 * Check bcopy before memcpy/memmove.
283 * FindSocket code much fixed & improved.
284 * 10.04.95 -- 3.05.70 Display_displays() now shows the users permissions on
285 * the currently displayed window, this is easier than a
286 * full featured lsacl, but also helps. chacl can now copy
287 * users, but we need to copy windows.
288 * 26.04.95 -- 3.05.71 Multi digit screen numbers in utmp. MakeWindow() now
289 * echoes what it does, just like RemakeWindow() when
290 * 'verbose on' (default off).
291 * `screen -ls myname/' will find own(!) non-multi sessions.
292 * Command line option -q improved and documented.
293 * 'debug off' also shuts attacher debugging off now.
294 * 03.05.95 -- 3.05.72 'connect' command bugfixed. colon prompt improved.
295 * open(O_NONBLOCK) does not work on 4.1.3, using O_NDELAY.
296 * There are writes to exp_wid2chan[-1], XXX I just added
297 * fillers to the mux structure, please debug this ASAP!
298 * WindowByName() prefers exact matches now. Esc forwarding
299 * from Frontend to Backend suppressed unless specified.
300 * 26.06.95 -- 3.05.73 Improving the combination of dflag and rflag: If both
301 * are set, a screen session is reattached, regardless
302 * if it was previously detached or attached elseewhere.
303 * "screen -D -RR" is thus most powerful: Give me my screen
304 * session here and now. No matter, if this means creating
305 * a new session (due to the second R without warning
306 * message), detching the session first (and due to the
307 * capitalised D logging out), or simply attaching to it.
308 * 13.07.95 -- 3.05.74 Markroutine learned new join mode: comma seperated.
309 * Can disable the detach feature from config.h.
310 * Configure.in now calls etc/toolcheck. Password is no
311 * longer a static array.
312 * 30.07.95 -- 3.05.75 Karl Heuer wants to install with a relative symlink.
313 * Command line option -k removed (try -t).
314 * 31.08.95 -- 3.06.03 Color support, digraph command, code
315 * cleanup (struct mchar/mline added).
316 * 03.09.95 -- 3.06.04 SetRendition display check. Solaris unblock
317 * SIGHUP. w_curchar->w_rend, lintified.
318 * Shadow-password code moved and rewritten
319 * (includes sun C2).
320 * 06.09.95 -- 3.05.76 Added support for braille displays (by Hadi Bargi Rangin
321 * and Bill Barry, {bargy,barryb}@dots.physics.orst.edu
322 * Added baud, cs8, istrip, ixon, ixoff options for plain
323 * tty windows. Untested.
324 * 09.09.95 -- 3.07.99 Merged 3.7.76 back into the main distribution but
325 * without network, blankwindow and dlist support.
326 * Global variable Password removed.
327 * Resize code completely rewritten.
328 * New commands: sorendition, (def)charset.
329 * strftime-like message generation.
330 * 26.09.95 -- 3.06.05 resize code completely rewritten.
331 * Very visible cursor added. vbell sequence
332 * \Eb added. _delay for terminfo libs added
333 * to make the padding work for the first time.
334 * New ProcessInput() makes "command command"
335 * work. '[def]escape ""' clears escape chars.
336 * Changed logdir command to logfile. It now uses
337 * MakeWinMsg() to create the filename.
338 * Updated the manuals.
339 * 03.10.95 -- 3.08.00 Merged 3.07.99 back into my 3.06.05.
340 * pause removed. NONROOT now in config.h.
341 * sysV68 configure test. Socket protocol got
342 * revision number. New command termcapinfo.
343 * Screenrcs, docs & configure.in updated
344 * 18.10.95 -- 3.08.01 Info shows parser state.
345 * Very visible cursor added. vbell sequence
346 * \Eb added. _delay for terminfo libs added
347 * to make the padding work for the first time.
348 * Braille code almost completely reworked.
349 * New ProcessInput() makes "command command"
350 * work. '[def]escape ""' clears escape chars.
351 * Command logdir -> logfile and uses MakeWinMsg.
352 * Updated the manuals. New mark command 'x'.
353 * stuff has new "-k" parameter.
354 * 28.10.95 -- 3.06.06 Added new 'XC' capability to provide
355 * a method for character translation.
356 * 17.11.95 -- 3.07.00 Added CheckEscape() function.
357 * acl -> acls because of hpux10 nameclash
358 * /stand/vmunix added to kernel list (hpux10)
359 * stripdev changed to translate
360 * /dev/pts<n> to /dev/pts/<n> (unixware)
361 * -lgen added to GETUTENT configure test.
362 * 20.11.95 -- 3.07.01 corrected vbell null ptr reference.
363 * -- DISTRIBUTED
364 * 27.11.95 -- 3.08.02 Added CheckEscape() function.
365 * acl -> acls because of hpux10 nameclash
366 * /stand/vmunix added to kernel list (hpux10)
367 * stripdev changed to translate
368 * /dev/pts<n> to /dev/pts/<n> (unixware)
369 * -lgen added to GETUTENT configure test.
370 * corrected vbell null ptr reference
371 * -- 3.08.03 etc/toolcheck is now shouting louder.
372 * Solaris 2.5 has /kernel/genunix.
373 * Touching socket when detach/attach.
374 * FindWindow corrected. AIX4 patch
375 * from robert@mayday.cix.co.uk.
376 * 1.09.96 -- 3.07.02 added #ifdef MAPKEYS for CheckEscape.
377 * etc/toolcheck is now shouting louder.
378 * Touching socket when detach/attach.
379 * Linux tcflush hack. Linux md5 password suport.
380 * USE_SGR support for dumb (wyse) terminals.
381 * "at" and "reset" commands improved.
382 * Now sensitive to broken AIX4 TIOCPKT.
383 * tek patch unapplied.
384 * linux utmp patch: set slot to DEAD_PROCESS.
385 * include signal.h for killpg if hpux10.10.
386 * linux: elf, but no SVR4, check for utmpx.
387 * hpux10.10 libcurses breaks select()!
388 * -- DISTRIBUTED
389 * 27.09.96 -- 3.07.03 ncurses tgetflag returns -1 if cap not valid.
390 * autonuke fix: reset application mode. An init
391 * string may have cleared it.
392 * Small UTMPOK patch from Douglas B. Jones.
393 * 23.06.97 -- 3.07.04 Some bugfixes. Kanji fixed.
394 * Code update from 3.8.6: Colon line editing added.
395 * Digraph made line-editing resistant.
396 * DEC ALPHA ut_user[0] = 0;
397 * Added error messages to exit_with_usage.
398 * FindSocket code improved (the MULTIUSER part).
399 * Use utimes() if available. Power-detached start.
400 * vsnprintf() support. exit -> _exit in window.c.
401 * AddXChars now tolerates NULL string.
402 * -- DISTRIBUTED
403 * 10.11.98 -- 3.07.05 Wayne's resize.c patch to keep the cursor
404 * onscreen. FindWindow corrected. AIX4 patch
405 * from robert@mayday.cix.co.uk.
406 * Fixed kanji am & markcursor bugs.
407 * SCO support (Gert Doering).
408 * Wayne's statusline extra space. New flag nospc
409 * for MakeWinMsg. New TF capability: add missing
410 * termcap/info caps. screen-exchange security
411 * fix. Use kstat for Solaris' loadavg.
412 * Check for mode 775 if screen runs setgid.
413 * Fixed typo in silence command.
414 * Allow detach with no tty. HPUX10.20 ltchars
415 * hack. Use @1/@7 as replacement for kh/kH.
416 * Use seteuid before calling tgetent.
417 * Check for displays in Msg().
418 * Linux ncurses hack: redefine _nc_timed_wait.
419 * Configure check for ncurses (sigh).
420 * ITOH Yasufumi: kanji fixes, osf support,
421 * bug fixes. More secure Rewrite().
422 * Increased line buffer size to 2048 bytes.
423 * SCO-5 Fixes (Brian L. Gentry).
424 * 25.11.98 -- 3.07.06 resize code now handles tabs correctly.
425 * -- DISTRIBUTED
426 * -- 3.09.00 loads'o'bugs fixed, 3.8 merged with 3.7.
427 * new region clip code.
428 * Many new features (see NEWS file).
429 * 3.08.99 -- 3.09.02 -- DISTRIBUTED
430 * 11.08.99 -- 3.09.04 small utmp fix, BSD chflags fix, tty mode fix
431 * -- DISTRIBUTED
432 * 1.09.99 -- 3.09.05 linux SVR4_PTYS fixes, better ShowWindos(),
433 * Panic() displays bug fixed, strerror fixed,
434 * missing $srcdir & bad prefix in Makefiles.
435 * console grabbing with SRIOCSREDIR.
436 * linux utmp workaround added. Some KANJI bugs
437 * fixed. Stupid StuffKey() bug fixed.
438 * -- DISTRIBUTED
439 * 24.07.00 -- 3.09.06 kanji fixes. lock escape char fix.
440 * removed delayed message hack.
441 * resize command & focus subcomands by joze.
442 * fix for solaris' utmp_helper bug.
443 * linux tty handling fix.
444 * mousetracking, rxvt osc sequences.
445 * background color erase support.
446 * don't log user in after hangup.
447 * hstatus escape update bug fixed.
448 * 1.09.00 -- 3.09.08 -- DISTRIBUTED
449 * 25.05.01 -- 3.09.09 use $DESTDIR in Makefiles.
450 * renamed struct user to acluser to fix hpux
451 * problem for good. utf8 support. 16 color
452 * support. New -X option and escape sequence
453 * to send screen commands.
454 * New commands: attrcolor, defutf8, dinfo, utf8.
455 * Extended commands: width, height, readbuf,
456 * writebuf. Better nlist64 detection.
457 * New config.h option SOCKDIR_IS_LOCAL_TO_HOST.
458 * Don't call tputs with an empty string.
459 * New string escape %{ for attr/color changes.
460 * LRefreshAll bug fixed (0 instead of -1 as bce).
461 * New quote handling in Parse(). Workaround for
462 * some bad termcap/info entries added. Set BE
463 * for all xtermish emulators. Added '0x' and
464 * 'U+' prefix in digraph command. LOADAV_TYPE
465 * detection fixed.
466 * -- DISTRIBUTED
467 * 4.09.01 -- 3.09.10 '-R' security fix. Fixed array in MScrollV().
468 * -- DISTRIBUTED
469 * Reset charset after 'me'.
470 * 14.02.02 -- 3.09.11 Support for other encodings. Double width
471 * utf-8 chars. 'L' modifier for %D, %M, %w
472 * and %W. New %= (hfill), %H (hostname),
473 * %f (flags), %F (focus) escapes. New commands
474 * source, windowlist, deflog. Command key classes.
475 * New login state: always. Time format
476 * changeable. 256 color support.
477 * Updated digraph table. Ignorecase.
478 * Windowlist resizeable on blank window.
479 * Added encoding to paste buffers.
480 * Hpux loadtype detection fixed.
481 * Disabled im/ic warning. Fixed a bug that
482 * could cause window lockups in rare
483 * circumstances. Made hangup signal to the
484 * backend process detach all displays.
485 * New escapes %< %>, + and - flag for %w.
486 * Added eval command, added -h option to detach.
487 * Also set flayer when processing -X commands.
488 * use getpt() on linux systems. doc patches from
489 * Adam Lazur. tty flow/intr cleanup.
490 * -- DISTRIBUTED
491 * 29.08.2002 3.09.12 Port to POSIX 1003.1-2001 hosts (Paul Eggert).
492 * Fixed encoding for reattach password test.
493 * Fixed NUL characters when encodings are active.
494 * Fixed silly encodings bugs. Fixed bogus
495 * oldflayer when a window gets freed.
496 * Altscreen support by Gurusamy Sarathy.
497 * Reuse old password in builtin_screenlock.
498 * -- DISTRIBUTED
499 * 05.09.2002 3.09.13 added missing break statement that broke
500 * the eval command.
501 * -- DISTRIBUTED
502 * 13.03.2003 3.09.15 Console workaround for linux. Scrolling-region
503 * reset fix. GBK encoding added.
504 * support for unicode combining characters added.
505 * openpty() support added (thomas@xs4all.nl).
506 * preselect of blank window ('-') or window
507 * list ('=') added. Added %` string escape
508 * and backtick command.
509 * -- DISTRIBUTED
510 * 08.09.2003 4.00.00 rewrote nonblock command, added defnonblock.
511 * added zmodem support (catch & passthrough).
512 * added screenblanker.
513 * fixed a couple of GBK bugs.
514 * rewrote command parsing.
515 * added -m option to windowlist (Felix Rosencrantz)
516 * -- DISTRIBUTED
517 * 18.09.2003 4.00.01 fixed two small bugs in the new parser.
518 * -- DISTRIBUTED
519 * 05.12.2003 4.00.02 fixed a bug in the ansi parser. fixed execs
520 * on ttys. fixed hardstatus line on blanked screen.
521 * -- DISTRIBUTED
522 * 11.10.2004, 4.00.03jw handle StartRc errors nonfatal if due to a msg.
523 * 12.10.2004, 4.00.03jw1 let docu of 'split' 'focus' 'remove' and 'only' refer to each other.
524 * 01.11.2004, 4.00.03jw2 zombie command has new option 'onerror'
525 * 2005-12-19, 4.00.03jw3 syntax error.
526 */
529 #define REV 4
530 #define VERS 1
531 #define PATCHLEVEL 0