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/* Copyright (c) 1991
* 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 1, 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, write to the
* Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Noteworthy contributors to screen's design and implementation:
* Wayne Davison (davison@borland.com)
* Patrick Wolfe (pat@kai.com, kailand!pat)
* Bart Schaefer (schaefer@cse.ogi.edu)
* Nathan Glasser (nathan@brokaw.lcs.mit.edu)
* Larry W. Virden (lwv27%cas.BITNET@CUNYVM.CUNY.Edu)
* Howard Chu (hyc@hanauma.jpl.nasa.gov)
* Tim MacKenzie (tym@dibbler.cs.monash.edu.au)
* Markku Jarvinen (mta@{cc,cs,ee}.tut.fi)
* Marc Boucher (marc@CAM.ORG)
*
****************************************************************
* $Id: screen.h,v 1.2 92/02/03 02:28:13 jnweiger Exp $ FAU
*/
/* screen.h now includes enough to satisfy its own references.
* only config.h is still needed.
*/
#include <stdio.h>
#include <errno.h>
#ifdef ISC
# ifdef ENAMETOOLONG
# undef ENAMETOOLONG
# endif
# ifdef ENOTEMPTY
# undef ENOTEMPTY
# endif
# include <net/errno.h>
#endif
#if defined(pyr)
extern int errno;
#endif
#ifdef sun
# define getpgrp __getpgrp
# define exit __exit
#endif
#ifdef POSIX
#include <unistd.h>
# if defined(__STDC__)
# include <stdlib.h>
# endif
#endif
#ifdef sun
# undef getpgrp
# undef exit
#endif
#ifdef POSIX
# include <termios.h>
# ifdef hpux
# include <bsdtty.h>
# endif
#else
# ifdef TERMIO
# include <termio.h>
# else
# include <sgtty.h>
# endif /* TERMIO */
#endif /* POSIX */
#if defined(BSD) || defined(sequent) || defined(pyr)
# include <strings.h>
#else /* BSD */
# ifdef SVR4
# define strlen ___strlen___
# include <string.h>
# undef strlen
extern size_t strlen(const char *);
# else /* SVR4 */
# include <string.h>
# endif /* SVR4 */
#endif /* BSD */
#if (defined(TIOCGWINSZ) || defined(TIOCSWINSZ)) && defined(M_UNIX)
# include <sys/stream.h>
# include <sys/ptem.h>
#endif
#ifdef SUIDROOT
# ifdef LOCKPTY
# undef LOCKPTY
# endif
#endif
#ifndef UTMPOK
# ifdef USRLIMIT
# undef USRLIMIT
# endif
#endif
#ifndef LOGINDEFAULT
# define LOGINDEFAULT 0
#endif
#if defined(LOADAV_3DOUBLES) || defined(LOADAV_3LONGS) ||\
defined(LOADAV_4LONGS) || defined(LOADAV_NEXT)
# define LOADAV
#endif
#ifndef FSCALE
# if defined(MIPS) || defined(SVR4)
# define FSCALE 256 /* MIPS doesn't, and... */
# else
# ifdef sgi
# define FSCALE 1024.0
# else
# define FSCALE 1000.0 /* Sequent doesn't define FSCALE...grrrr */
# endif
# endif
#endif
#ifndef F_OK
#define F_OK 0
#endif
#ifndef X_OK
#define X_OK 1
#endif
#ifndef W_OK
#define W_OK 2
#endif
#ifndef R_OK
#define R_OK 4
#endif
#ifndef MAXPATH
# define MAXPATH 1024
#endif
#ifndef SIG_T_DEFINED
# ifdef SIGVOID
# if defined(ultrix)
# define sig_t void
# else /* nice compilers: */
typedef void sig_t;
# endif
# else
typedef int sig_t; /* (* sig_t) */
# endif
#endif /* SIG_T_DEFINED */
#if defined(SVR4) || (defined(SYSV) && defined(ISC))
# define SIGPROTOARG (int)
# define SIGDEFARG int sigsig
# define SIGARG 0
#else
# define SIGPROTOARG (void)
# define SIGDEFARG
# define SIGARG
#endif
#if (!defined(SYSV) && !defined(POSIX) && !defined(apollo)) || defined(sysV68)
# ifndef PID_T_DEFINED
typedef int pid_t;
# endif /* PID_T_DEFINED */
#endif
#if defined(M_XENIX)
typedef int pid_t;
typedef int gid_t;
typedef int uid_t;
#endif
#if defined(UTMPOK) && defined(_SEQUENT_)
# define GETUTENT
#endif
#ifdef GETUTENT
typedef char *slot_t;
#else
typedef int slot_t;
#endif
#if !defined(BSD) && !defined(sequent) && !defined(NeXT)
# define index strchr
# define rindex strrchr
#endif
#ifdef SYSV /* jw. */
# define bzero(poi,len) memset(poi,0,len)
# define killpg(pgrp,sig) kill( -(pgrp), sig)
#endif
#if defined(_POSIX_SOURCE) && defined(ISC)
# ifndef O_NDELAY
# define O_NDELAY O_NONBLOCK
# endif
#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)
/* modes for markroutine
*/
#define PLAIN 0
#define TRICKY 1
#define CRAZY 2 /* should rather be TAXY or MAHEM though... */
/*typedef long off_t; */ /* Someone might need this */
enum state_t
{
LIT, /* Literal input */
ESC, /* Start of escape sequence */
ASTR, /* Start of control string */
STRESC, /* ESC seen in control string */
CSI, /* Reading arguments in "CSI Pn ; Pn ; ... ; XXX" */
PRIN, /* Printer mode */
PRINESC, /* ESC seen in printer mode */
PRINCSI, /* CSI seen in printer mode */
PRIN4 /* CSI 4 seen in printer mode */
};
enum string_t
{
NONE,
DCS, /* Device control string */
OSC, /* Operating system command */
APC, /* Application program command */
PM, /* Privacy message */
AKA /* a.k.a. for current screen */
};
#define MAXSTR 256
#define MAXARGS 64
#define MSGWAIT 5
#define MSGMINWAIT 1
/*
* 4 <= IOSIZE <=1000
* you may try to vary this value. Use low values if your (VMS) system
* tends to choke when pasting. Use high values if you want to test
* how many characters your pty's can buffer.
*/
#define IOSIZE 80
/*
* if a nasty user really wants to try a history of 2000 lines on all 10
* windows, he will allocate 5 MegaBytes of memory, which is quite enough.
*/
#define MAXHISTHEIGHT 3000
#define DEFAULTHISTHEIGHT 100
struct win
{
int wpid; /* process, that is connected to the other end of ptyfd */
int ptyfd; /* usually the master side of our pty pair */
int ttyflag; /* 1 if ptyfd is connected to a user specified tty. */
int aflag;
char outbuf[IOSIZE];
int outlen;
int autoaka, akapos;
char cmd[MAXSTR];
char tty[MAXSTR];
int args[MAXARGS];
int NumArgs;
slot_t slot;
char **image;
char **attr;
char **font;
int LocalCharset;
int charsets[4];
int ss;
int active;
int x, y;
char LocalAttr;
int saved;
int Saved_x, Saved_y;
char SavedLocalAttr;
int SavedLocalCharset;
int SavedCharsets[4];
int top, bot;
int wrap;
int origin;
int insert;
int keypad;
int width, height; /* width AND height, as we have now resized wins. jw.*/
int histheight; /* all histbases are malloced with width * histheight */
int histidx; /* 0= < histidx < histheight; where we insert lines */
char **ihist; /* the history buffer image */
char **ahist; /* attributes */
char **fhist; /* fonts */
enum state_t state;
enum string_t StringType;
char string[MAXSTR];
char *stringp;
char *tabs;
int vbwait;
int bell;
int flow;
int WinLink;
FILE *logfp;
int monitor;
int cursor_invisible;
int norefresh; /* we dont redisplay when switching to that win */
};
/*
* Definitions for flow
* 000 -(-)
* 001 +(-)
* 010 -(+)
* 011 +(+)
* 100 -(a)
* 111 +(a)
*/
#define FLOW_NOW (1<<0)
#define FLOW_AUTO (1<<1)
#define FLOW_AUTOFLAG (1<<2)
/*
* 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
/*
* 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
struct msg
{
int type;
union
{
struct
{
int lflag;
int aflag;
int flowflag;
int hheight; /* size of scrollback buffer */
int nargs;
char line[MAXPATH];
char dir[MAXPATH];
char screenterm[20]; /* is screen really "screen" ? */
}
create;
struct
{
int apid;
int adaptflag; /* do we wish to adapt window size? */
int lines, columns;
char tty[MAXPATH];
char password[20];
char envterm[MAXPATH];
}
attach;
struct
{
char password[20];
int dpid;
char tty[MAXPATH];
}
detach;
char message[MAXPATH * 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
#define SIG_PW_OK SIGUSR1
#define SIG_PW_FAIL SIG_BYE
struct mode
{
#ifdef POSIX
struct termios tio;
# ifdef hpux
struct ltchars m_ltchars;
# endif
#else
# ifdef TERMIO
struct termio tio;
# else
struct sgttyb m_ttyb;
struct tchars m_tchars;
struct ltchars m_ltchars;
int m_ldisc;
int m_lmode;
# endif /* TERMIO */
#endif /* POSIX */
};
#define BELL 7
#define VBELLWAIT 1 /* No. of seconds a vbell will be displayed */
#define BELL_OFF 0 /* No bell has occurred in the window */
#define BELL_ON 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
#undef MAXWIN20
#ifdef MAXWIN20
#define MAXWIN 20
#else
#define MAXWIN 10
#endif
/* the key definitions are used in screen.c and help.c */
/* keep this list synchronus with the names given in fileio.c */
enum keytype
{
KEY_IGNORE, /* Keep these first 2 at the start */
KEY_SCREEN,
KEY_0, KEY_1, KEY_2, KEY_3, KEY_4,
KEY_5, KEY_6, KEY_7, KEY_8, KEY_9,
#ifdef MAXWIN20
KEY_10, KEY_11, KEY_12, KEY_13, KEY_14,
KEY_15, KEY_16, KEY_17, KEY_18, KEY_19,
#endif
KEY_AKA,
KEY_CLEAR,
KEY_COLON,
KEY_COPY,
KEY_DETACH,
KEY_FLOW,
KEY_HARDCOPY,
KEY_HELP,
KEY_HISTNEXT,
KEY_HISTORY,
KEY_INFO,
KEY_KILL,
KEY_LASTMSG,
KEY_LICENSE,
KEY_LOCK,
KEY_LOGTOGGLE,
KEY_LOGIN,
KEY_MONITOR,
KEY_NEXT,
KEY_OTHER,
KEY_PASTE,
KEY_POW_DETACH,
KEY_PREV,
KEY_QUIT,
KEY_READ_BUFFER,
KEY_REDISPLAY,
KEY_REMOVE_BUFFERS,
KEY_RESET,
KEY_SET,
KEY_SHELL,
KEY_SUSPEND,
KEY_TERMCAP,
KEY_TIME,
KEY_VBELL,
KEY_VERSION,
KEY_WIDTH,
KEY_WINDOWS,
KEY_WRAP,
KEY_WRITE_BUFFER,
KEY_XOFF,
KEY_XON,
KEY_EXTEND,
KEY_X_WINDOWS,
KEY_BONUSWINDOW,
KEY_CREATE,
};
struct key
{
enum keytype type;
char **args;
};
#ifdef NETHACK
# define Msg_nomem Msg(0, "You feel stupid.")
#else
# define Msg_nomem Msg(0, "Out of memory.")
#endif
#ifdef DEBUG
# define debug(x) {fprintf(dfp,x);fflush(dfp);}
# define debug1(x,a) {fprintf(dfp,x,a);fflush(dfp);}
# define debug2(x,a,b) {fprintf(dfp,x,a,b);fflush(dfp);}
# define debug3(x,a,b,c) {fprintf(dfp,x,a,b,c);fflush(dfp);}
extern FILE *dfp;
#else
# define debug(x) {}
# define debug1(x,a) {}
# define debug2(x,a,b) {}
# define debug3(x,a,b,c) {}
#endif
#if defined(__STDC__)
# ifndef __P
# define __P(a) a
# endif
#else
# ifndef __P
# define __P(a) ()
# endif
# define const
#endif
#ifdef hpux
# define setreuid(ruid, euid) setresuid(ruid, euid, -1)
# define setregid(rgid, egid) setresgid(rgid, egid, -1)
#endif
#ifdef UTMPOK
# ifdef SVR4
# include <utmpx.h>
# define UTMPFILE UTMPX_FILE
# define utmp utmpx
# define getutent getutxent
# define getutid getutxid
# define getutline getutxline
# define pututline pututxline
# define setutent setutxent
# define endutent endutxent
# else /* SVR4 */
# include <utmp.h>
# endif /* SVR4 */
#endif
#ifndef UTMPFILE
# ifdef UTMP_FILE
# define UTMPFILE UTMP_FILE
# else
# ifdef BSDI
# define UTMPFILE "/var/run/utmp"
# else
# define UTMPFILE "/etc/utmp"
# endif /* BSDI */
# endif
#endif
#if !defined(SYSV) || defined(sun) || defined(RENO) || defined(xelos)
# define BSDWAIT
#endif
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