4.3BSD - /usr/src/usr.lib/libcurses/initscr.c

   1: /*
   2:  * Copyright (c) 1980 Regents of the University of California.
   3:  * All rights reserved.  The Berkeley software License Agreement
   4:  * specifies the terms and conditions for redistribution.
   5:  */
   6: 
   7: #ifndef lint
   8: static char sccsid[] = "@(#)initscr.c	5.1 (Berkeley) 6/7/85";
   9: #endif not lint
  10: 
  11: # include   "curses.ext"
  12: # include   <signal.h>
  13: 
  14: extern char *getenv();
  15: 
  16: /*
  17:  *	This routine initializes the current and standard screen.
  18:  *
  19:  */
  20: WINDOW *
  21: initscr() {
  22: 
  23:     reg char    *sp;
  24:     int     tstp();
  25:     int         nfd;
  26: 
  27: # ifdef DEBUG
  28:     fprintf(outf, "INITSCR()\n");
  29: # endif
  30:     if (My_term)
  31:         setterm(Def_term);
  32:     else {
  33:         for (_tty_ch = 0; _tty_ch < nfd; _tty_ch++)
  34:             if (isatty(_tty_ch))
  35:                 break;
  36:         gettmode();
  37:         if ((sp = getenv("TERM")) == NULL)
  38:             sp = Def_term;
  39:         setterm(sp);
  40: # ifdef DEBUG
  41:         fprintf(outf, "INITSCR: term = %s\n", sp);
  42: # endif
  43:     }
  44:     _puts(TI);
  45:     _puts(VS);
  46: # ifdef SIGTSTP
  47:     signal(SIGTSTP, tstp);
  48: # endif
  49:     if (curscr != NULL) {
  50: # ifdef DEBUG
  51:         fprintf(outf, "INITSCR: curscr = 0%o\n", curscr);
  52: # endif
  53:         delwin(curscr);
  54:     }
  55: # ifdef DEBUG
  56:     fprintf(outf, "LINES = %d, COLS = %d\n", LINES, COLS);
  57: # endif
  58:     if ((curscr = newwin(LINES, COLS, 0, 0)) == ERR)
  59:         return ERR;
  60:     clearok(curscr, TRUE);
  61:     curscr->_flags &= ~_FULLLINE;
  62:     if (stdscr != NULL) {
  63: # ifdef DEBUG
  64:         fprintf(outf, "INITSCR: stdscr = 0%o\n", stdscr);
  65: # endif
  66:         delwin(stdscr);
  67:     }
  68:     stdscr = newwin(LINES, COLS, 0, 0);
  69:     return stdscr;
  70: }

Defined functions

Defined variables