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