BSD 4_4 release

[unix-history] / usr / src / lib / libcurses / scroll.c

diff --git a/usr/src/lib/libcurses/scroll.c b/usr/src/lib/libcurses/scroll.c
index abc5783..886d0d0 100644 (file)
--- a/usr/src/lib/libcurses/scroll.c
+++ b/usr/src/lib/libcurses/scroll.c
@@ -1,36 +1,59 @@
 /*
 /*

- * Copyright (c) 1981 Regents of the University of California.
- * All rights reserved.
+ * Copyright (c) 1981, 1993
+ *     The Regents of the University of California.  All rights reserved.

  *
  *

- * Redistribution and use in source and binary forms are permitted
- * provided that this notice is preserved and that due credit is given
- * to the University of California at Berkeley. The name of the University
- * may not be used to endorse or promote products derived from this
- * software without specific prior written permission. This software
- * is provided ``as is'' without express or implied warranty.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by the University of
+ *     California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.

  */
 
 #ifndef lint
  */
 
 #ifndef lint

-static char sccsid[] = "@(#)scroll.c   5.2 (Berkeley) %G%";
+static char sccsid[] = "@(#)scroll.c   8.1 (Berkeley) 6/11/93";

 #endif /* not lint */
 
 #endif /* not lint */
 

-# include      "curses.ext"
+#include <curses.h>
+#include <termios.h>

 
 /*
 
 /*

- *     This routine scrolls the window up a line.
- *
+ * scroll --
+ *     Scroll the window up a line.

  */
  */

+int

 scroll(win)
 scroll(win)

-register  WINDOW       *win;
+       register WINDOW *win;

 {
 {

-       register int    oy, ox;
+       register int oy, ox;

 
 

-# ifdef DEBUG
-       fprintf(outf, "SCROLL(%0.2o)\n", win);
-# endif
+#ifdef DEBUG
+       __CTRACE("scroll: (%0.2o)\n", win);
+#endif

 
 

-       if (!win->_scroll)
-               return ERR;
+       if (!(win->flags & __SCROLLOK))
+               return (ERR);

 
        getyx(win, oy, ox);
        wmove(win, 0, 0);
 
        getyx(win, oy, ox);
        wmove(win, 0, 0);


@@ -38,11 +61,12 @@ register  WINDOW    *win;
        wmove(win, oy, ox);
 
        if (win == curscr) {
        wmove(win, oy, ox);
 
        if (win == curscr) {

-               _putchar('\n');
+               putchar('\n');

                if (!NONL)
                if (!NONL)

-                       win->_curx = 0;
-# ifdef DEBUG
-               fprintf(outf, "SCROLL: win == curscr\n");
-# endif
+                       win->curx = 0;
+#ifdef DEBUG
+               __CTRACE("scroll: win == curscr\n");
+#endif

        }
        }

+       return (OK);

 }
 }