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

1.1       root        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: }

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