#include <stdlib.h>#include <termcap.h>#include <sys/types.h>#include <sys/ioctl.h>#include <curses.h>#include "curspriv.h"struct termios _orig_tty, _tty;cursv _cursvar;WINDOW *stdscr, *curscr;int LINES, COLS;bool NONL;char termcap[1024];		/* termcap buffer */char tc[200];			/* area to hold string capabilities */char *ttytype;			/* terminal type from env */static char *arp;		/* pointer for use in tgetstr */char *cp;			/* character pointer */char *cl;			/* clear screen capability */char *cm;			/* cursor motion capability */char *so;			/* start standout capability */char *se;			/* end standout capability */char *mr;			/* start of reverse */char *me;			/* revert to normal */char *mb;			/* start of blink */char *md;			/* start of bold */char *us;			/* start of underscore */char *ue;			/* end of underscore */char *vi;			/* cursor invisible */char *ve;			/* cursor normal */char *vs;			/* cursor good visible */char *as;			/* alternative charset start */char *ae;			/* alternative charset end */char *bl;			/* ring the bell */char *vb;			/* visual bell *//* fatal - report error and die. Never returns */void fatal(s)char *s;{  (void) fprintf(stderr, "curses: %s\n", s);  exit(1);}/* Outc - call putchar, necessary because putchar is a macro. */void outc(c)int c;{  putchar(c);}/* Move cursor to r,c */void poscur(r, c)int r, c;{  tputs(tgoto(cm, c, r), 1, outc);}/* Clear the screen */void clrscr(){  tputs(cl, 1, outc);}/* This are terminal independent characters which can be used in curses */unsigned int ACS_ULCORNER;unsigned int ACS_LLCORNER;unsigned int ACS_URCORNER;unsigned int ACS_LRCORNER;unsigned int ACS_RTEE;unsigned int ACS_LTEE;unsigned int ACS_BTEE;unsigned int ACS_TTEE;unsigned int ACS_HLINE;unsigned int ACS_VLINE;unsigned int ACS_PLUS;unsigned int ACS_S1;unsigned int ACS_S9;unsigned int ACS_DIAMOND;unsigned int ACS_CKBOARD;unsigned int ACS_DEGREE;unsigned int ACS_PLMINUS;unsigned int ACS_BULLET;unsigned int ACS_LARROW;unsigned int ACS_RARROW;unsigned int ACS_DARROW;unsigned int ACS_UARROW;unsigned int ACS_BOARD;unsigned int ACS_LANTERN;unsigned int ACS_BLOCK;/* These defines describe the full set of grafic block characters which * can be defined via termcap. */#define RIGHTARROW  0#define LEFTARROW   1#define DOWNARROW   2#define UPARROW     3#define FULLSQUARE  4#define GREYSQUARE  5#define EMPTYSQUARE 6#define LATERN      7#define DIAMOND     8#define DEGREE      9#define PLUSMINUS  10#define DOWNRIGHT  11#define UPRIGHT    12#define UPLEFT     13#define DOWNLEFT   14#define CROSS      15#define UPLINE     16#define UPMIDLINE  17#define MIDLINE    18#define DOMIDLINE  19#define DOWNLINE   20#define TEELEFT    21#define TEERIGHT   22#define TEEHEAD    23#define TEENORMAL  24#define VERTLINE   25#define PARAGRAPH  26unsigned int _cursgraftable[27] ={ '>', '<', 'v', '^', '#', ':', ' ', '#', '+', '\'', '#', '+', '+', '+', '+', '+', '-', ' ', '-', ' ', '_', '+', '+', '+', '+', '|'};char _cursident[28] = "+,.-0ahI`fgjklmnopqrstuvwx~";int setterm(type)char *type;{  unsigned char *ac;  int i;#ifdef TIOCGWINSZ  struct winsize wsize;#endif  if (tgetent(termcap, type) != 1) return ERR;#ifdef TIOCGWINSZ  if (ioctl(0, TIOCGWINSZ, &wsize) == 0) {	LINES = wsize.ws_row != 0 ? wsize.ws_row : tgetnum("li");	COLS = wsize.ws_col != 0 ? wsize.ws_col : tgetnum("co");  } else {#endif	LINES = tgetnum("li");	COLS = tgetnum("co");#ifdef TIOCGWINSZ  }#endif  arp = tc;  cl = tgetstr("cl", &arp);  so = tgetstr("so", &arp);  se = tgetstr("se", &arp);  cm = tgetstr("cm", &arp);  mr = tgetstr("mr", &arp);  me = tgetstr("me", &arp);  mb = tgetstr("mb", &arp);  md = tgetstr("md", &arp);  us = tgetstr("us", &arp);  ue = tgetstr("ue", &arp);  vi = tgetstr("vi", &arp);  ve = tgetstr("ve", &arp);  vs = tgetstr("vs", &arp);  as = tgetstr("as", &arp);  ae = tgetstr("ae", &arp);  ac = (unsigned char *) tgetstr("ac", &arp);  bl = tgetstr("bl", &arp);  vb = tgetstr("vb", &arp);  if (ac) {	while (*ac) {		i = 0;		while (*ac != _cursident[i]) i++;		_cursgraftable[i] = *++ac | A_ALTCHARSET;		ac++;	}  }  ACS_ULCORNER = _cursgraftable[UPLEFT];  ACS_LLCORNER = _cursgraftable[DOWNLEFT];  ACS_URCORNER = _cursgraftable[UPRIGHT];  ACS_LRCORNER = _cursgraftable[DOWNRIGHT];  ACS_RTEE = _cursgraftable[TEERIGHT];  ACS_LTEE = _cursgraftable[TEELEFT];  ACS_BTEE = _cursgraftable[TEEHEAD];  ACS_TTEE = _cursgraftable[TEENORMAL];  ACS_HLINE = _cursgraftable[MIDLINE];  ACS_VLINE = _cursgraftable[VERTLINE];  ACS_PLUS = _cursgraftable[CROSS];  ACS_S1 = _cursgraftable[UPLINE];  ACS_S9 = _cursgraftable[DOWNLINE];  ACS_DIAMOND = _cursgraftable[DIAMOND];  ACS_CKBOARD = _cursgraftable[GREYSQUARE];  ACS_DEGREE = _cursgraftable[DEGREE];  ACS_PLMINUS = _cursgraftable[PLUSMINUS];  ACS_BULLET = 'o';		/* where the hell is a bullet defined in			 * termcap ??? */  ACS_LARROW = _cursgraftable[LEFTARROW];  ACS_RARROW = _cursgraftable[RIGHTARROW];  ACS_DARROW = _cursgraftable[DOWNARROW];  ACS_UARROW = _cursgraftable[UPARROW];  ACS_BOARD = _cursgraftable[EMPTYSQUARE];  ACS_LANTERN = _cursgraftable[LATERN];  ACS_BLOCK = _cursgraftable[FULLSQUARE];  /* Wow, I got it! */  return OK;}void gettmode(){  tcgetattr(0, &_orig_tty);  tcgetattr(0, &_tty);  _cursvar.echoit = (_tty.c_lflag & ECHO) != 0;  _cursvar.rawmode = (_tty.c_lflag & (ICANON|ISIG)) == 0;  _cursvar.cbrkmode = (_tty.c_lflag & (ICANON|ISIG)) == ISIG;  NONL = (_tty.c_iflag & ICRNL) != 0;}