Fix:	SE004

Problem:
	Back-port Linux specific code from Debian 0.0.5E3-2

Compatible with:
	Slash'EM up to 0.0.5E3 (except Debian)

Obsoleted by:
	Slash'EM 0.0.5E4

Author: Peter Makholm, peter@makholm.net
	J. Ali Harlow, ali@avrc.city.ac.uk

Date:	9 Aug 1999

*** src/drawing.c.orig	Tue Jul 27 16:15:51 1999
--- src/drawing.c	Mon Aug  9 17:55:13 1999
***************
*** 1070,1076 ****
  #endif /* ASCIIGRAPH */
  
  	for (i = 0; i < MAXOCLASSES; i++) {
! #ifdef ASCIIGRAPH
  	    if (iflags.IBMgraphics
  # if defined(USE_TILES) && defined(MSDOS)
  		&& !iflags.grmode
--- 1070,1076 ----
  #endif /* ASCIIGRAPH */
  
  	for (i = 0; i < MAXOCLASSES; i++) {
! #if defined(ASCIIGRAPH) && !defined(LINUX)
  	    if (iflags.IBMgraphics
  # if defined(USE_TILES) && defined(MSDOS)
  		&& !iflags.grmode
***************
*** 1078,1084 ****
  		)
  		oc_syms[i] = IBM_r_oc_syms[i];
  	    else
! #endif /* ASCIIGRAPH */
  		oc_syms[i] = r_oc_syms[i];
  	}
  #if defined(MSDOS)
--- 1078,1084 ----
  		)
  		oc_syms[i] = IBM_r_oc_syms[i];
  	    else
! #endif /* ASCIIGRAPH && !LINUX */
  		oc_syms[i] = r_oc_syms[i];
  	}
  #if defined(MSDOS)
*** sys/share/ioctl.c.orig	Tue Jul 27 16:21:42 1999
--- sys/share/ioctl.c	Mon Aug  9 17:16:20 1999
***************
*** 73,78 ****
--- 73,83 ----
  extern void NDECL(sco_mapoff);
  #endif
  
+ #ifdef LINUX
+ extern void NDECL(linux_mapon);
+ extern void NDECL(linux_mapoff);
+ #endif
+ 
  #ifdef AUX
  void
  catch_stp()
***************
*** 158,163 ****
--- 163,171 ----
  #  ifdef _M_UNIX
  		sco_mapon();
  #  endif
+ #  ifdef LINUX
+ 		linux_mapon();
+ #  endif
  		(void) signal(SIGTSTP, SIG_DFL);
  #  ifdef AUX
  		( void ) kill ( 0 , SIGSTOP ) ;
***************
*** 167,172 ****
--- 175,183 ----
  #  ifdef _M_UNIX
  		sco_mapoff();
  #  endif
+ #  ifdef LINUX
+ 		linux_mapoff();
+ #  endif
  		resume_nhwindows();
  	} else {
  		pline("I don't think your shell has job control.");
*** win/tty/termcap.c.orig	Tue Jul 27 16:25:34 1999
--- win/tty/termcap.c	Mon Aug  9 17:54:27 1999
***************
*** 41,48 ****
  
  STATIC_VAR char *HO, *CL, *CE, *UP, *XD, *BC, *SO, *SE, *TI, *TE;
  STATIC_VAR char *VS, *VE;
  #if 0
! STATIC_VAR char *MR, *ME;
  STATIC_VAR char *MB, *MH;
  STATIC_VAR char *MD;     /* may already be in use below */
  #endif
--- 41,49 ----
  
  STATIC_VAR char *HO, *CL, *CE, *UP, *XD, *BC, *SO, *SE, *TI, *TE;
  STATIC_VAR char *VS, *VE;
+ STATIC_VAR char *ME;
  #if 0
! STATIC_VAR char *MR;
  STATIC_VAR char *MB, *MH;
  STATIC_VAR char *MD;     /* may already be in use below */
  #endif
***************
*** 158,165 ****
  		US = "\033[4m";
  #  if 0
  		MR = "\033[7m";
- 		ME = "\033[0m";
  #  endif
  		TI = HE = SE = UE = "\033[0m";
  		/* strictly, SE should be 2, and UE should be 24,
  		   but we can't trust all ANSI emulators to be
--- 159,166 ----
  		US = "\033[4m";
  #  if 0
  		MR = "\033[7m";
  #  endif
+ 		ME = "\033[0m";
  		TI = HE = SE = UE = "\033[0m";
  		/* strictly, SE should be 2, and UE should be 24,
  		   but we can't trust all ANSI emulators to be
***************
*** 288,295 ****
  	MB = Tgetstr("mb");	/* blink */
  	MD = Tgetstr("md");	/* boldface */
  	MH = Tgetstr("mh");	/* dim */
- 	ME = Tgetstr("me");
  # endif
  
  	/* Get rid of padding numbers for HI and HE.  Hope they
  	 * aren't really needed!!!  HI and HE are ouputted to the
--- 289,296 ----
  	MB = Tgetstr("mb");	/* blink */
  	MD = Tgetstr("md");	/* boldface */
  	MH = Tgetstr("mh");	/* dim */
  # endif
+ 	ME = Tgetstr("me");
  
  	/* Get rid of padding numbers for HI and HE.  Hope they
  	 * aren't really needed!!!  HI and HE are ouputted to the
***************
*** 827,834 ****
  		hilites[c] = HI;
  	hilites[CLR_GRAY] = hilites[NO_COLOR] = (char *)0;
  
! 	if (tgetnum("Co") < 8 || (setf = tgetstr("Sf", (char **)0)) == (char *)0)
! 		return;
  
  	for (c = 0; c < CLR_MAX / 2; c++) {
  		scratch = tparm(setf, ti_map[c]);
--- 828,838 ----
  		hilites[c] = HI;
  	hilites[CLR_GRAY] = hilites[NO_COLOR] = (char *)0;
  
!        if (tgetnum("Co") < 8)
!                return;
!        if ((setf = tgetstr("Sf", (char **)0)) == (char *)0
!            && (setf = tgetstr("AF", (char **)0)) == (char *)0)
!  		return;
  
  	for (c = 0; c < CLR_MAX / 2; c++) {
  		scratch = tparm(setf, ti_map[c]);
***************
*** 1082,1088 ****
  void
  term_end_color()
  {
! 	xputs(HE);
  }
  
  
--- 1086,1092 ----
  void
  term_end_color()
  {
! 	xputs(ME);
  }
  
  
*** sys/unix/unixmain.c.orig	Tue Jul 27 16:22:52 1999
--- sys/unix/unixmain.c	Mon Aug  9 17:43:37 1999
***************
*** 35,40 ****
--- 35,45 ----
  extern void NDECL(init_sco_cons);
  #endif
  
+ #ifdef LINUX
+ extern void NDECL(check_linux_console);
+ extern void NDECL(init_linux_cons);
+ #endif
+ 
  static void NDECL(wd_message);
  #ifdef WIZARD
  static boolean wiz_error_flag = FALSE;
***************
*** 120,125 ****
--- 125,133 ----
  #ifdef _M_UNIX
  	check_sco_console();
  #endif
+ #ifdef LINUX
+ 	check_linux_console();
+ #endif
  	initoptions();
  	init_nhwindows(&argc,argv);
  	exact_username = whoami();
***************
*** 126,131 ****
--- 134,142 ----
  #ifdef _M_UNIX
  	init_sco_cons();
  #endif
+ #ifdef LINUX
+ 	init_linux_cons();
+ #endif
  
  	/*
  	 * It seems you really want to play.
*** sys/share/unixtty.c.orig	Tue Jul 27 16:21:33 1999
--- sys/share/unixtty.c	Mon Aug  9 17:19:44 1999
***************
*** 370,376 ****
--- 370,428 ----
  }
  #endif	/* _M_UNIX */
  
+ #ifdef LINUX
+ # include <sys/vt.h>
  
+ int linux_flag_console = 0;
+ 
+ void
+ linux_mapon()
+ {
+ # ifdef TTY_GRAPHICS
+   if (!strcmp(windowprocs.name, "tty") && linux_flag_console) {
+     write(1, "\033(B", 3);
+   }
+ # endif
+ }
+ 
+ void
+ linux_mapoff()
+ {
+ # ifdef TTY_GRAPHICS
+   if (!strcmp(windowprocs.name, "tty") && linux_flag_console) {
+     write(1, "\033(U", 3);
+   }
+ # endif
+ }
+ 
+ void
+ check_linux_console()
+ {
+   struct vt_mode vtm;
+   
+   if (isatty(0) && ioctl(0,VT_GETMODE,&vtm) >= 0) {
+     linux_flag_console = 1;
+   }
+ }
+ 
+ void
+ init_linux_cons()
+ {
+ # ifdef TTY_GRAPHICS
+   if (!strcmp(windowprocs.name, "tty") && linux_flag_console) {
+     atexit(linux_mapon);
+     linux_mapoff();
+     switch_graphics(IBM_GRAPHICS);
+ #  ifdef TEXTCOLOR
+     if (has_colors())
+       iflags.use_color = TRUE;
+ #  endif
+   }
+ # endif
+ }
+ #endif /* LINUX */
+ 
+ 
  #ifndef __begui__	/* the Be GUI will define its own error proc */
  /* fatal error */
  /*VARARGS1*/
*** sys/unix/unixunix.c.orig	Tue Jul 27 16:22:52 1999
--- sys/unix/unixunix.c	Mon Aug  9 17:47:50 1999
***************
*** 17,22 ****
--- 17,28 ----
  extern void NDECL(sco_mapon);
  extern void NDECL(sco_mapoff);
  #endif
+ 
+ #ifdef LINUX
+ extern void NDECL(linux_mapon);
+ extern void NDECL(linux_mapoff);
+ #endif
+ 
  static int FDECL (veryold, (int));
  static int NDECL (eraseoldlocks);
  
***************
*** 317,322 ****
--- 323,331 ----
  #ifdef _M_UNIX
  	sco_mapon();
  #endif
+ #ifdef LINUX
+ 	linux_mapon();
+ #endif
  	if((f = fork()) == 0){		/* child */
  		(void) setgid(getgid());
  		(void) setuid(getuid());
***************
*** 336,341 ****
--- 345,353 ----
  #ifdef _M_UNIX
  	sco_mapoff();
  #endif
+ #ifdef LINUX
+ 	linux_mapoff();
+ #endif
  	(void) signal(SIGINT, (SIG_RET_TYPE) done1);
  #ifdef WIZARD
  	if(wizard) (void) signal(SIGQUIT,SIG_DFL);