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Annotation of researchv10no/ncurses/screen/newterm.c, revision 1.1

1.1     ! root        1: # include      "curses.ext"
        !             2: # include      <signal.h>
        !             3: /*     @(#) newterm.c: 1.1 10/15/83    (1.17   3/16/83)        */
        !             4: 
        !             5: char   *calloc();
        !             6: char   *malloc();
        !             7: extern char    *getenv();
        !             8: 
        !             9: extern WINDOW  *makenew();
        !            10: 
        !            11: struct screen *
        !            12: newterm(type, outfd, infd)
        !            13: char *type;
        !            14: FILE *outfd, *infd;
        !            15: {
        !            16:        int             _tstp();
        !            17:        struct screen *scp;
        !            18:        struct screen *_new_tty();
        !            19:        extern int _endwin;
        !            20: 
        !            21: #ifdef DEBUG
        !            22:        if(outf) fprintf(outf, "NEWTERM() isatty(2) %d, getenv %s\n",
        !            23:                isatty(2), getenv("TERM"));
        !            24: # endif
        !            25:        SP = (struct screen *) calloc(1, sizeof (struct screen));
        !            26:        SP->term_file = outfd;
        !            27:        SP->input_file = infd;
        !            28:        /*
        !            29:         * The default is echo, for upward compatibility, but we do
        !            30:         * all echoing in curses to avoid problems with the tty driver
        !            31:         * echoing things during critical sections.
        !            32:         */
        !            33:        SP->fl_echoit = 1;
        !            34:        savetty();
        !            35:        scp = _new_tty(type, outfd);
        !            36:        if (scp == NULL)
        !            37:                return NULL;
        !            38: #ifdef USG
        !            39:        (cur_term->Nttyb).c_lflag &= ~ECHO;
        !            40: #else
        !            41:        (cur_term->Nttyb).sg_flags &= ~ECHO;
        !            42: #endif
        !            43:        reset_prog_mode();
        !            44: # ifdef SIGTSTP
        !            45:        signal(SIGTSTP, _tstp);
        !            46: # endif
        !            47:        if (curscr != NULL) {
        !            48: # ifdef DEBUG
        !            49:                if(outf) fprintf(outf, "INITSCR: non null curscr = 0%o\n", curscr);
        !            50: # endif
        !            51:        }
        !            52: # ifdef DEBUG
        !            53:        if(outf) fprintf(outf, "LINES = %d, COLS = %d\n", LINES, COLS);
        !            54: # endif
        !            55:        LINES = lines;
        !            56:        COLS =  columns;
        !            57:        curscr = makenew(LINES, COLS, 0, 0);
        !            58:        stdscr = newwin(LINES, COLS, 0, 0);
        !            59: # ifdef DEBUG
        !            60:        if(outf) fprintf(outf, "SP %x, stdscr %x, curscr %x\n", SP, stdscr, curscr);
        !            61: # endif
        !            62:        SP->std_scr = stdscr;
        !            63:        SP->cur_scr = curscr;
        !            64:        /* Maybe should use makewin and glue _y's to DesiredScreen. */
        !            65:        _endwin = FALSE;
        !            66:        return scp;
        !            67: }

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