2.9BSD - /usr/src/lib/curses/initscr.c

   1: # include   "curses.ext"
   2: # include   <signal.h>
   3: 
   4: extern char *getenv();
   5: 
   6: /*
   7:  *	This routine initializes the current and standard screen.
   8:  *
   9:  * 3/6/81 (Berkeley) @(#)initscr.c	1.2
  10:  */
  11: WINDOW *
  12: initscr() {
  13: 
  14:     reg char    *sp;
  15:     int     tstp();
  16: 
  17: # ifdef DEBUG
  18:     fprintf(outf, "INITSCR()\n");
  19: # endif
  20:     if (!My_term && isatty(2)) {
  21:         _tty_ch = 2;
  22:         gettmode();
  23:         if ((sp = getenv("TERM")) == NULL)
  24:             sp = Def_term;
  25:         setterm(sp);
  26: # ifdef DEBUG
  27:         fprintf(outf, "INITSCR: term = %s\n", sp);
  28: # endif
  29:     }
  30:     else
  31:         setterm(Def_term);
  32:     _puts(TI);
  33:     _puts(VS);
  34: # ifdef SIGTSTP
  35:     signal(SIGTSTP, tstp);
  36: # endif
  37:     if (curscr != NULL) {
  38: # ifdef DEBUG
  39:         fprintf(outf, "INITSCR: curscr = 0%o\n", curscr);
  40: # endif
  41:         delwin(curscr);
  42:     }
  43: # ifdef DEBUG
  44:     fprintf(outf, "LINES = %d, COLS = %d\n", LINES, COLS);
  45: # endif
  46:     if ((curscr = newwin(LINES, COLS, 0, 0)) == ERR)
  47:         return ERR;
  48:     curscr->_clear = TRUE;
  49:     if (stdscr != NULL) {
  50: # ifdef DEBUG
  51:         fprintf(outf, "INITSCR: stdscr = 0%o\n", stdscr);
  52: # endif
  53:         delwin(stdscr);
  54:     }
  55:     stdscr = newwin(LINES, COLS, 0, 0);
  56:     return stdscr;
  57: }

Defined functions