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Diffstat (limited to 'screen.h')
| -rw-r--r-- | screen.h | 316 |
1 files changed, 316 insertions, 0 deletions
diff --git a/screen.h b/screen.h new file mode 100644 index 0000000..d39b7ea --- /dev/null +++ b/screen.h @@ -0,0 +1,316 @@ +/* Copyright (c) 2008, 2009 + * Juergen Weigert (jnweiger@immd4.informatik.uni-erlangen.de) + * Michael Schroeder (mlschroe@immd4.informatik.uni-erlangen.de) + * Micah Cowan (micah@cowan.name) + * Sadrul Habib Chowdhury (sadrul@users.sourceforge.net) + * Copyright (c) 1993-2002, 2003, 2005, 2006, 2007 + * Juergen Weigert (jnweiger@immd4.informatik.uni-erlangen.de) + * Michael Schroeder (mlschroe@immd4.informatik.uni-erlangen.de) + * Copyright (c) 1987 Oliver Laumann + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program (see the file COPYING); if not, see + * http://www.gnu.org/licenses/, or contact Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA + * + **************************************************************** + * $Id$ GNU + */ + +#include "os.h" + +#if defined(__STDC__) +# ifndef __P +# define __P(a) a +# endif +#else +# ifndef __P +# define __P(a) () +# endif +# define const +#endif + +#include "osdef.h" + +#include "ansi.h" +#include "sched.h" +#include "acls.h" +#include "comm.h" +#include "layer.h" +#include "term.h" + + +#ifdef DEBUG +# define STATIC /* a function that the debugger should see */ +#else +# define STATIC static +#endif + +#ifdef DEBUG +# define DEBUGDIR "/tmp/debug" +# define debugf(a) do {if(dfp){fprintf a;fflush(dfp);}} while (0) +# define debug(x) debugf((dfp,x)) +# define debug1(x,a) debugf((dfp,x,a)) +# define debug2(x,a,b) debugf((dfp,x,a,b)) +# define debug3(x,a,b,c) debugf((dfp,x,a,b,c)) + extern FILE *dfp; +#else +# define debugf(a) do {} while (0) +# define debug(x) debugf(x) +# define debug1(x,a) debugf(x) +# define debug2(x,a,b) debugf(x) +# define debug3(x,a,b,c) debugf(x) +#endif + +#ifndef DEBUG +# define NOASSERT +#endif + +#ifndef NOASSERT +# if defined(__STDC__) +# define ASSERT(lousy_cpp) do {if (!(lousy_cpp)) {if (!dfp) opendebug(0, 1);debug2("ASSERT("#lousy_cpp") failed file %s line %d\n", __FILE__, __LINE__);abort();}} while (0) +# else +# define ASSERT(lousy_cpp) do {if (!(lousy_cpp)) {if (!dfp) opendebug(0, 1);debug2("ASSERT(lousy_cpp) failed file %s line %d\n", __FILE__, __LINE__);abort();}} while (0) +# endif +#else +# define ASSERT(lousy_cpp) do {} while (0) +#endif + +/* here comes my own Free: jw. */ +#define Free(a) {if ((a) == 0) abort(); else free((void *)(a)); (a)=0;} + +#define Ctrl(c) ((c)&037) + +#define MAXSTR 768 +#define MAXARGS 64 +#define MSGWAIT 5 +#define MSGMINWAIT 1 +#define SILENCEWAIT 30 + +/* + * if a nasty user really wants to try a history of 3000 lines on all 10 + * windows, he will allocate 8 MegaBytes of memory, which is quite enough. + */ +#define MAXHISTHEIGHT 3000 +#define DEFAULTHISTHEIGHT 100 +#if defined(NAME_MAX) && NAME_MAX < 16 +# define DEFAULT_BUFFERFILE "/tmp/screen-xchg" +#else +# define DEFAULT_BUFFERFILE "/tmp/screen-exchange" +#endif + + +#if defined(hpux) && !(defined(VSUSP) && defined(VDSUSP) && defined(VWERASE) && defined(VLNEXT)) +# define HPUX_LTCHARS_HACK +#endif + +struct mode +{ +#ifdef POSIX + struct termios tio; +# ifdef HPUX_LTCHARS_HACK + struct ltchars m_ltchars; +# endif /* HPUX_LTCHARS_HACK */ +#else /* POSIX */ +# ifdef TERMIO + struct termio tio; +# ifdef CYTERMIO + int m_mapkey; + int m_mapscreen; + int m_backspace; +# endif +# else /* TERMIO */ + struct sgttyb m_ttyb; + struct tchars m_tchars; + struct ltchars m_ltchars; + int m_ldisc; + int m_lmode; +# endif /* TERMIO */ +#endif /* POSIX */ +#if defined(KANJI) && defined(TIOCKSET) + struct jtchars m_jtchars; + int m_knjmode; +#endif +}; + + +/* #include "logfile.h" */ /* (requires stat.h) struct logfile */ +#include "image.h" +#include "canvas.h" +#include "display.h" +#include "window.h" + +/* + * Parameters for the Detach() routine + */ +#define D_DETACH 0 +#define D_STOP 1 +#define D_REMOTE 2 +#define D_POWER 3 +#define D_REMOTE_POWER 4 +#define D_LOCK 5 +#define D_HANGUP 6 + +/* + * Here are the messages the attacher sends to the backend + */ +#define MSG_CREATE 0 +#define MSG_ERROR 1 +#define MSG_ATTACH 2 +#define MSG_CONT 3 +#define MSG_DETACH 4 +#define MSG_POW_DETACH 5 +#define MSG_WINCH 6 +#define MSG_HANGUP 7 +#define MSG_COMMAND 8 +#define MSG_QUERY 9 + +/* + * versions of struct msg: + * 0: screen version 3.6.6 (version count introduced) + * 1: screen version 4.1.0devel (revisions e3fc19a upto 8147d08) + * A few revisions after 8147d08 incorrectly + * carried version 1, but should have carried 2. + * 2: screen version 4.1.0devel (revisions 8b46d8a upto YYYYYYY) + * 3: screen version 4.2.0 (was incorrectly originally. Patched here) + * 4: screen version 4.2.1 (bumped once again due to changed terminal and login length) + * 5: screen version 4.4.0 (fix screenterm size) + */ +#define MSG_VERSION 5 + +#define MSG_REVISION (('m'<<24) | ('s'<<16) | ('g'<<8) | MSG_VERSION) +struct msg +{ + int protocol_revision; /* reduce harm done by incompatible messages */ + int type; + char m_tty[MAXPATHLEN]; /* ttyname */ + union + { + struct + { + int lflag; + int aflag; + int flowflag; + int hheight; /* size of scrollback buffer */ + int nargs; + char line[MAXPATHLEN]; + char dir[MAXPATHLEN]; + char screenterm[MAXTERMLEN + 1]; /* is screen really "screen" ? */ + } + create; + struct + { + char auser[MAXLOGINLEN + 1]; /* username */ + int apid; /* pid of frontend */ + int adaptflag; /* adapt window size? */ + int lines, columns; /* display size */ + char preselect[20]; + int esc; /* his new escape character unless -1 */ + int meta_esc; /* his new meta esc character unless -1 */ + char envterm[MAXTERMLEN + 1]; /* terminal type */ + int encoding; /* encoding of display */ + int detachfirst; /* whether to detach remote sessions first */ + } + attach; + struct + { + char duser[MAXLOGINLEN + 1]; /* username */ + int dpid; /* pid of frontend */ + } + detach; + struct + { + char auser[MAXLOGINLEN + 1]; /* username */ + int nargs; + char cmd[MAXPATHLEN]; /* command */ + int apid; /* pid of frontend */ + char preselect[20]; + char writeback[MAXPATHLEN]; /* The socket to write the result. + Only used for MSG_QUERY */ + } + command; + char message[MAXPATHLEN * 2]; + } m; +}; + +/* + * And the signals the attacher receives from the backend + */ +#define SIG_BYE SIGHUP +#define SIG_POWER_BYE SIGUSR1 +#define SIG_LOCK SIGUSR2 +#define SIG_STOP SIGTSTP +#ifdef SIGIO +#define SIG_NODEBUG SIGIO /* triggerd by command 'debug off' */ +#endif + + +#define BELL (Ctrl('g')) +#define VBELLWAIT 1 /* No. of seconds a vbell will be displayed */ + +#define BELL_ON 0 /* No bell has occurred in the window */ +#define BELL_FOUND 1 /* A bell has occurred, but user not yet notified */ +#define BELL_DONE 2 /* A bell has occured, user has been notified */ + +#define BELL_VISUAL 3 /* A bell has occured in fore win, notify him visually */ + +#define MON_OFF 0 /* Monitoring is off in the window */ +#define MON_ON 1 /* No activity has occurred in the window */ +#define MON_FOUND 2 /* Activity has occured, but user not yet notified */ +#define MON_DONE 3 /* Activity has occured, user has been notified */ + +#define DUMP_TERMCAP 0 /* WriteFile() options */ +#define DUMP_HARDCOPY 1 +#define DUMP_EXCHANGE 2 +#define DUMP_SCROLLBACK 3 + +#define SILENCE_OFF 0 /* Not checking for silence */ +#define SILENCE_ON 1 /* Window being monitored for silence */ +#define SILENCE_FOUND 2 /* Window is silent */ +#define SILENCE_DONE 3 /* Window is silent and user is notified */ + +extern char strnomem[]; + +/* + * line modes used by Input() + */ +#define INP_COOKED 0 +#define INP_NOECHO 1 +#define INP_RAW 2 +#define INP_EVERY 4 + + +#ifdef MULTIUSER +struct acl +{ + struct acl *next; + char *name; +}; +#endif + +/* register list */ +#define MAX_PLOP_DEFS 256 + +struct baud_values +{ + int idx; /* the index in the bsd-is padding lookup table */ + int bps; /* bits per seconds */ + int sym; /* symbol defined in ttydev.h */ +}; + +/* + * windowlist orders + */ +#define WLIST_NUM 0 +#define WLIST_MRU 1 +#define WLIST_NESTED 2 |