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Annotation of 43BSDTahoe/usr.lib/libcurses/initscr.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1981 Regents of the University of California.
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution and use in source and binary forms are permitted
                      6:  * provided that the above copyright notice and this paragraph are
                      7:  * duplicated in all such forms and that any documentation,
                      8:  * advertising materials, and other materials related to such
                      9:  * distribution and use acknowledge that the software was developed
                     10:  * by the University of California, Berkeley.  The name of the
                     11:  * University may not be used to endorse or promote products derived
                     12:  * from this software without specific prior written permission.
                     13:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
                     14:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
                     15:  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     16:  */
                     17: 
                     18: #ifndef lint
                     19: static char sccsid[] = "@(#)initscr.c  5.3 (Berkeley) 6/30/88";
                     20: #endif /* not lint */
                     21: 
                     22: # include      "curses.ext"
                     23: # include      <signal.h>
                     24: 
                     25: extern char    *getenv();
                     26: 
                     27: /*
                     28:  *     This routine initializes the current and standard screen.
                     29:  *
                     30:  */
                     31: WINDOW *
                     32: initscr() {
                     33: 
                     34:        reg char        *sp;
                     35:        int             tstp();
                     36:        int             nfd;
                     37: 
                     38: # ifdef DEBUG
                     39:        fprintf(outf, "INITSCR()\n");
                     40: # endif
                     41:        if (My_term)
                     42:                setterm(Def_term);
                     43:        else {
                     44:                for (_tty_ch = 0; _tty_ch < nfd; _tty_ch++)
                     45:                        if (isatty(_tty_ch))
                     46:                                break;
                     47:                gettmode();
                     48:                if ((sp = getenv("TERM")) == NULL)
                     49:                        sp = Def_term;
                     50:                setterm(sp);
                     51: # ifdef DEBUG
                     52:                fprintf(outf, "INITSCR: term = %s\n", sp);
                     53: # endif
                     54:        }
                     55:        _puts(TI);
                     56:        _puts(VS);
                     57: # ifdef SIGTSTP
                     58:        signal(SIGTSTP, tstp);
                     59: # endif
                     60:        if (curscr != NULL) {
                     61: # ifdef DEBUG
                     62:                fprintf(outf, "INITSCR: curscr = 0%o\n", curscr);
                     63: # endif
                     64:                delwin(curscr);
                     65:        }
                     66: # ifdef DEBUG
                     67:        fprintf(outf, "LINES = %d, COLS = %d\n", LINES, COLS);
                     68: # endif
                     69:        if ((curscr = newwin(LINES, COLS, 0, 0)) == ERR)
                     70:                return ERR;
                     71:        clearok(curscr, TRUE);
                     72:        curscr->_flags &= ~_FULLLINE;
                     73:        if (stdscr != NULL) {
                     74: # ifdef DEBUG
                     75:                fprintf(outf, "INITSCR: stdscr = 0%o\n", stdscr);
                     76: # endif
                     77:                delwin(stdscr);
                     78:        }
                     79:        stdscr = newwin(LINES, COLS, 0, 0);
                     80:        return stdscr;
                     81: }

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