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Annotation of coherent/d/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 COHERENT
                     19: #ifndef lint
                     20: static uchar sccsid[] = "@(#)initscr.c 5.3 (Berkeley) 6/30/88";
                     21: #endif /* not lint */
                     22: #endif /* not COHERENT */
                     23: 
                     24: # include      <stdio.h>
                     25: # include      "curses.ext"
                     26: # include      <signal.h>
                     27: 
                     28: extern uchar   *getenv();
                     29: 
                     30: /*
                     31:  *     This routine initializes the current and standard screen.
                     32:  *
                     33:  */
                     34: WINDOW *
                     35: initscr() {
                     36: 
                     37:        reg uchar       *sp;
                     38:        extern int      tstp();
                     39: 
                     40: # ifdef DEBUG
                     41:        if ( outf == NULL )
                     42:                outf = stderr;
                     43:        fprintf(outf, "INITSCR()\n");
                     44: # endif
                     45: 
                     46:        if (My_term)
                     47:                setterm(Def_term);
                     48:        else {
                     49:                for (_tty_ch = 0; _tty_ch < 20; _tty_ch++)
                     50:                        if (isatty(_tty_ch))
                     51:                                break;
                     52:                gettmode();
                     53:                if ((sp = getenv("TERM")) == NULL)
                     54:                        sp = Def_term;
                     55:                setterm(sp);
                     56: # ifdef DEBUG
                     57:                fprintf(outf, "INITSCR: term = %s\n", sp);
                     58: # endif
                     59:        }
                     60:        _puts(TI);
                     61:        _puts(VS);
                     62: # ifdef SIGTSTP
                     63:        signal(SIGTSTP, tstp);
                     64: # endif
                     65:        if (curscr != NULL) {
                     66: # ifdef DEBUG
                     67:                fprintf(outf, "INITSCR: curscr = 0%o\n", curscr);
                     68: # endif
                     69:                delwin(curscr);
                     70:        }
                     71: # ifdef DEBUG
                     72:        fprintf(outf, "LINES = %d, COLS = %d\n", LINES, COLS);
                     73: # endif
                     74:        if ((curscr = newwin(LINES, COLS, 0, 0)) == ERR)
                     75:                return ERR;
                     76:        clearok(curscr, TRUE);
                     77:        curscr->_flags &= ~_FULLLINE;
                     78:        if (stdscr != NULL) {
                     79: # ifdef DEBUG
                     80:                fprintf(outf, "INITSCR: stdscr = 0%o\n", stdscr);
                     81: # endif
                     82:                delwin(stdscr);
                     83:        }
                     84:        stdscr = newwin(LINES, COLS, 0, 0);
                     85:        return stdscr;
                     86: }

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