diff --git a/scripts/lxdialog/textbox.c b/scripts/lxdialog/textbox.c
index ed23df2..d6e7f2a 100644
--- a/scripts/lxdialog/textbox.c
+++ b/scripts/lxdialog/textbox.c
@@ -21,11 +21,11 @@
 
 #include "dialog.h"
 
-static void back_lines (int n);
-static void print_page (WINDOW * win, int height, int width);
-static void print_line (WINDOW * win, int row, int width);
-static char *get_line (void);
-static void print_position (WINDOW * win, int height, int width);
+static void back_lines(int n);
+static void print_page(WINDOW * win, int height, int width);
+static void print_line(WINDOW * win, int row, int width);
+static char *get_line(void);
+static void print_position(WINDOW * win, int height, int width);
 
 static int hscroll, fd, file_size, bytes_read;
 static int begin_reached = 1, end_reached, page_length;
@@ -34,450 +34,466 @@
 /*
  * Display text from a file in a dialog box.
  */
-int
-dialog_textbox (const char *title, const char *file, int height, int width)
+int dialog_textbox(const char *title, const char *file, int height, int width)
 {
-    int i, x, y, cur_x, cur_y, fpos, key = 0;
-    int passed_end;
-    char search_term[MAX_LEN + 1];
-    WINDOW *dialog, *text;
+	int i, x, y, cur_x, cur_y, fpos, key = 0;
+	int passed_end;
+	char search_term[MAX_LEN + 1];
+	WINDOW *dialog, *text;
 
-    search_term[0] = '\0';	/* no search term entered yet */
+	search_term[0] = '\0';	/* no search term entered yet */
 
-    /* Open input file for reading */
-    if ((fd = open (file, O_RDONLY)) == -1) {
-	endwin ();
-	fprintf (stderr,
-		 "\nCan't open input file in dialog_textbox().\n");
-	exit (-1);
-    }
-    /* Get file size. Actually, 'file_size' is the real file size - 1,
-       since it's only the last byte offset from the beginning */
-    if ((file_size = lseek (fd, 0, SEEK_END)) == -1) {
-	endwin ();
-	fprintf (stderr, "\nError getting file size in dialog_textbox().\n");
-	exit (-1);
-    }
-    /* Restore file pointer to beginning of file after getting file size */
-    if (lseek (fd, 0, SEEK_SET) == -1) {
-	endwin ();
-	fprintf (stderr, "\nError moving file pointer in dialog_textbox().\n");
-	exit (-1);
-    }
-    /* Allocate space for read buffer */
-    if ((buf = malloc (BUF_SIZE + 1)) == NULL) {
-	endwin ();
-	fprintf (stderr, "\nCan't allocate memory in dialog_textbox().\n");
-	exit (-1);
-    }
-    if ((bytes_read = read (fd, buf, BUF_SIZE)) == -1) {
-	endwin ();
-	fprintf (stderr, "\nError reading file in dialog_textbox().\n");
-	exit (-1);
-    }
-    buf[bytes_read] = '\0';	/* mark end of valid data */
-    page = buf;			/* page is pointer to start of page to be displayed */
-
-    /* center dialog box on screen */
-    x = (COLS - width) / 2;
-    y = (LINES - height) / 2;
-
-
-    draw_shadow (stdscr, y, x, height, width);
-
-    dialog = newwin (height, width, y, x);
-    keypad (dialog, TRUE);
-
-    /* Create window for text region, used for scrolling text */
-    text = subwin (dialog, height - 4, width - 2, y + 1, x + 1);
-    wattrset (text, dialog_attr);
-    wbkgdset (text, dialog_attr & A_COLOR);
-
-    keypad (text, TRUE);
-
-    /* register the new window, along with its borders */
-    draw_box (dialog, 0, 0, height, width, dialog_attr, border_attr);
-
-    wattrset (dialog, border_attr);
-    mvwaddch (dialog, height-3, 0, ACS_LTEE);
-    for (i = 0; i < width - 2; i++)
-	waddch (dialog, ACS_HLINE);
-    wattrset (dialog, dialog_attr);
-    wbkgdset (dialog, dialog_attr & A_COLOR);
-    waddch (dialog, ACS_RTEE);
-
-    if (title != NULL && strlen(title) >= width-2 ) {
-	/* truncate long title -- mec */
-	char * title2 = malloc(width-2+1);
-	memcpy( title2, title, width-2 );
-	title2[width-2] = '\0';
-	title = title2;
-    }
-
-    if (title != NULL) {
-	wattrset (dialog, title_attr);
-	mvwaddch (dialog, 0, (width - strlen(title))/2 - 1, ' ');
-	waddstr (dialog, (char *)title);
-	waddch (dialog, ' ');
-    }
-    print_button (dialog, " Exit ", height - 2, width / 2 - 4, TRUE);
-    wnoutrefresh (dialog);
-    getyx (dialog, cur_y, cur_x);	/* Save cursor position */
-
-    /* Print first page of text */
-    attr_clear (text, height - 4, width - 2, dialog_attr);
-    print_page (text, height - 4, width - 2);
-    print_position (dialog, height, width);
-    wmove (dialog, cur_y, cur_x);	/* Restore cursor position */
-    wrefresh (dialog);
-
-    while ((key != ESC) && (key != '\n')) {
-	key = wgetch (dialog);
-	switch (key) {
-	case 'E':		/* Exit */
-	case 'e':
-	case 'X':
-	case 'x':
-	    delwin (dialog);
-	    free (buf);
-	    close (fd);
-	    return 0;
-	case 'g':		/* First page */
-	case KEY_HOME:
-	    if (!begin_reached) {
-		begin_reached = 1;
-		/* First page not in buffer? */
-		if ((fpos = lseek (fd, 0, SEEK_CUR)) == -1) {
-		    endwin ();
-		    fprintf (stderr,
-		      "\nError moving file pointer in dialog_textbox().\n");
-		    exit (-1);
-		}
-		if (fpos > bytes_read) {	/* Yes, we have to read it in */
-		    if (lseek (fd, 0, SEEK_SET) == -1) {
-			endwin ();
-			fprintf (stderr, "\nError moving file pointer in "
-				 "dialog_textbox().\n");
-			exit (-1);
-		    }
-		    if ((bytes_read = read (fd, buf, BUF_SIZE)) == -1) {
-			endwin ();
-			fprintf (stderr,
-			     "\nError reading file in dialog_textbox().\n");
-			exit (-1);
-		    }
-		    buf[bytes_read] = '\0';
-		}
-		page = buf;
-		print_page (text, height - 4, width - 2);
-		print_position (dialog, height, width);
-		wmove (dialog, cur_y, cur_x);	/* Restore cursor position */
-		wrefresh (dialog);
-	    }
-	    break;
-	case 'G':		/* Last page */
-	case KEY_END:
-
-	    end_reached = 1;
-	    /* Last page not in buffer? */
-	    if ((fpos = lseek (fd, 0, SEEK_CUR)) == -1) {
-		endwin ();
-		fprintf (stderr,
-		      "\nError moving file pointer in dialog_textbox().\n");
-		exit (-1);
-	    }
-	    if (fpos < file_size) {	/* Yes, we have to read it in */
-		if (lseek (fd, -BUF_SIZE, SEEK_END) == -1) {
-		    endwin ();
-		    fprintf (stderr,
-		      "\nError moving file pointer in dialog_textbox().\n");
-		    exit (-1);
-		}
-		if ((bytes_read = read (fd, buf, BUF_SIZE)) == -1) {
-		    endwin ();
-		    fprintf (stderr,
-			     "\nError reading file in dialog_textbox().\n");
-		    exit (-1);
-		}
-		buf[bytes_read] = '\0';
-	    }
-	    page = buf + bytes_read;
-	    back_lines (height - 4);
-	    print_page (text, height - 4, width - 2);
-	    print_position (dialog, height, width);
-	    wmove (dialog, cur_y, cur_x);	/* Restore cursor position */
-	    wrefresh (dialog);
-	    break;
-	case 'K':		/* Previous line */
-	case 'k':
-	case KEY_UP:
-	    if (!begin_reached) {
-		back_lines (page_length + 1);
-
-		/* We don't call print_page() here but use scrolling to ensure
-		   faster screen update. However, 'end_reached' and
-		   'page_length' should still be updated, and 'page' should
-		   point to start of next page. This is done by calling
-		   get_line() in the following 'for' loop. */
-		scrollok (text, TRUE);
-		wscrl (text, -1);	/* Scroll text region down one line */
-		scrollok (text, FALSE);
-		page_length = 0;
-		passed_end = 0;
-		for (i = 0; i < height - 4; i++) {
-		    if (!i) {
-			/* print first line of page */
-			print_line (text, 0, width - 2);
-			wnoutrefresh (text);
-		    } else
-			/* Called to update 'end_reached' and 'page' */
-			get_line ();
-		    if (!passed_end)
-			page_length++;
-		    if (end_reached && !passed_end)
-			passed_end = 1;
-		}
-
-		print_position (dialog, height, width);
-		wmove (dialog, cur_y, cur_x);	/* Restore cursor position */
-		wrefresh (dialog);
-	    }
-	    break;
-	case 'B':		/* Previous page */
-	case 'b':
-	case KEY_PPAGE:
-	    if (begin_reached)
-		break;
-	    back_lines (page_length + height - 4);
-	    print_page (text, height - 4, width - 2);
-	    print_position (dialog, height, width);
-	    wmove (dialog, cur_y, cur_x);
-	    wrefresh (dialog);
-	    break;
-	case 'J':		/* Next line */
-	case 'j':
-	case KEY_DOWN:
-	    if (!end_reached) {
-		begin_reached = 0;
-		scrollok (text, TRUE);
-		scroll (text);	/* Scroll text region up one line */
-		scrollok (text, FALSE);
-		print_line (text, height - 5, width - 2);
-		wnoutrefresh (text);
-		print_position (dialog, height, width);
-		wmove (dialog, cur_y, cur_x);	/* Restore cursor position */
-		wrefresh (dialog);
-	    }
-	    break;
-	case KEY_NPAGE:		/* Next page */
-	case ' ':
-	    if (end_reached)
-		break;
-
-	    begin_reached = 0;
-	    print_page (text, height - 4, width - 2);
-	    print_position (dialog, height, width);
-	    wmove (dialog, cur_y, cur_x);
-	    wrefresh (dialog);
-	    break;
-	case '0':		/* Beginning of line */
-	case 'H':		/* Scroll left */
-	case 'h':
-	case KEY_LEFT:
-	    if (hscroll <= 0)
-		break;
-
-	    if (key == '0')
-		hscroll = 0;
-	    else
-		hscroll--;
-	    /* Reprint current page to scroll horizontally */
-	    back_lines (page_length);
-	    print_page (text, height - 4, width - 2);
-	    wmove (dialog, cur_y, cur_x);
-	    wrefresh (dialog);
-	    break;
-	case 'L':		/* Scroll right */
-	case 'l':
-	case KEY_RIGHT:
-	    if (hscroll >= MAX_LEN)
-		break;
-	    hscroll++;
-	    /* Reprint current page to scroll horizontally */
-	    back_lines (page_length);
-	    print_page (text, height - 4, width - 2);
-	    wmove (dialog, cur_y, cur_x);
-	    wrefresh (dialog);
-	    break;
-	case ESC:
-	    break;
+	/* Open input file for reading */
+	if ((fd = open(file, O_RDONLY)) == -1) {
+		endwin();
+		fprintf(stderr,
+			"\nCan't open input file in dialog_textbox().\n");
+		exit(-1);
 	}
-    }
+	/* Get file size. Actually, 'file_size' is the real file size - 1,
+	   since it's only the last byte offset from the beginning */
+	if ((file_size = lseek(fd, 0, SEEK_END)) == -1) {
+		endwin();
+		fprintf(stderr,
+			"\nError getting file size in dialog_textbox().\n");
+		exit(-1);
+	}
+	/* Restore file pointer to beginning of file after getting file size */
+	if (lseek(fd, 0, SEEK_SET) == -1) {
+		endwin();
+		fprintf(stderr,
+			"\nError moving file pointer in dialog_textbox().\n");
+		exit(-1);
+	}
+	/* Allocate space for read buffer */
+	if ((buf = malloc(BUF_SIZE + 1)) == NULL) {
+		endwin();
+		fprintf(stderr,
+			"\nCan't allocate memory in dialog_textbox().\n");
+		exit(-1);
+	}
+	if ((bytes_read = read(fd, buf, BUF_SIZE)) == -1) {
+		endwin();
+		fprintf(stderr, "\nError reading file in dialog_textbox().\n");
+		exit(-1);
+	}
+	buf[bytes_read] = '\0';	/* mark end of valid data */
+	page = buf;		/* page is pointer to start of page to be displayed */
 
-    delwin (dialog);
-    free (buf);
-    close (fd);
-    return -1;			/* ESC pressed */
+	/* center dialog box on screen */
+	x = (COLS - width) / 2;
+	y = (LINES - height) / 2;
+
+	draw_shadow(stdscr, y, x, height, width);
+
+	dialog = newwin(height, width, y, x);
+	keypad(dialog, TRUE);
+
+	/* Create window for text region, used for scrolling text */
+	text = subwin(dialog, height - 4, width - 2, y + 1, x + 1);
+	wattrset(text, dialog_attr);
+	wbkgdset(text, dialog_attr & A_COLOR);
+
+	keypad(text, TRUE);
+
+	/* register the new window, along with its borders */
+	draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr);
+
+	wattrset(dialog, border_attr);
+	mvwaddch(dialog, height - 3, 0, ACS_LTEE);
+	for (i = 0; i < width - 2; i++)
+		waddch(dialog, ACS_HLINE);
+	wattrset(dialog, dialog_attr);
+	wbkgdset(dialog, dialog_attr & A_COLOR);
+	waddch(dialog, ACS_RTEE);
+
+	if (title != NULL && strlen(title) >= width - 2) {
+		/* truncate long title -- mec */
+		char *title2 = malloc(width - 2 + 1);
+		memcpy(title2, title, width - 2);
+		title2[width - 2] = '\0';
+		title = title2;
+	}
+
+	if (title != NULL) {
+		wattrset(dialog, title_attr);
+		mvwaddch(dialog, 0, (width - strlen(title)) / 2 - 1, ' ');
+		waddstr(dialog, (char *)title);
+		waddch(dialog, ' ');
+	}
+	print_button(dialog, " Exit ", height - 2, width / 2 - 4, TRUE);
+	wnoutrefresh(dialog);
+	getyx(dialog, cur_y, cur_x);	/* Save cursor position */
+
+	/* Print first page of text */
+	attr_clear(text, height - 4, width - 2, dialog_attr);
+	print_page(text, height - 4, width - 2);
+	print_position(dialog, height, width);
+	wmove(dialog, cur_y, cur_x);	/* Restore cursor position */
+	wrefresh(dialog);
+
+	while ((key != ESC) && (key != '\n')) {
+		key = wgetch(dialog);
+		switch (key) {
+		case 'E':	/* Exit */
+		case 'e':
+		case 'X':
+		case 'x':
+			delwin(dialog);
+			free(buf);
+			close(fd);
+			return 0;
+		case 'g':	/* First page */
+		case KEY_HOME:
+			if (!begin_reached) {
+				begin_reached = 1;
+				/* First page not in buffer? */
+				if ((fpos = lseek(fd, 0, SEEK_CUR)) == -1) {
+					endwin();
+					fprintf(stderr,
+						"\nError moving file pointer in dialog_textbox().\n");
+					exit(-1);
+				}
+				if (fpos > bytes_read) {	/* Yes, we have to read it in */
+					if (lseek(fd, 0, SEEK_SET) == -1) {
+						endwin();
+						fprintf(stderr,
+							"\nError moving file pointer in "
+							"dialog_textbox().\n");
+						exit(-1);
+					}
+					if ((bytes_read =
+					     read(fd, buf, BUF_SIZE)) == -1) {
+						endwin();
+						fprintf(stderr,
+							"\nError reading file in dialog_textbox().\n");
+						exit(-1);
+					}
+					buf[bytes_read] = '\0';
+				}
+				page = buf;
+				print_page(text, height - 4, width - 2);
+				print_position(dialog, height, width);
+				wmove(dialog, cur_y, cur_x);	/* Restore cursor position */
+				wrefresh(dialog);
+			}
+			break;
+		case 'G':	/* Last page */
+		case KEY_END:
+
+			end_reached = 1;
+			/* Last page not in buffer? */
+			if ((fpos = lseek(fd, 0, SEEK_CUR)) == -1) {
+				endwin();
+				fprintf(stderr,
+					"\nError moving file pointer in dialog_textbox().\n");
+				exit(-1);
+			}
+			if (fpos < file_size) {	/* Yes, we have to read it in */
+				if (lseek(fd, -BUF_SIZE, SEEK_END) == -1) {
+					endwin();
+					fprintf(stderr,
+						"\nError moving file pointer in dialog_textbox().\n");
+					exit(-1);
+				}
+				if ((bytes_read =
+				     read(fd, buf, BUF_SIZE)) == -1) {
+					endwin();
+					fprintf(stderr,
+						"\nError reading file in dialog_textbox().\n");
+					exit(-1);
+				}
+				buf[bytes_read] = '\0';
+			}
+			page = buf + bytes_read;
+			back_lines(height - 4);
+			print_page(text, height - 4, width - 2);
+			print_position(dialog, height, width);
+			wmove(dialog, cur_y, cur_x);	/* Restore cursor position */
+			wrefresh(dialog);
+			break;
+		case 'K':	/* Previous line */
+		case 'k':
+		case KEY_UP:
+			if (!begin_reached) {
+				back_lines(page_length + 1);
+
+				/* We don't call print_page() here but use scrolling to ensure
+				   faster screen update. However, 'end_reached' and
+				   'page_length' should still be updated, and 'page' should
+				   point to start of next page. This is done by calling
+				   get_line() in the following 'for' loop. */
+				scrollok(text, TRUE);
+				wscrl(text, -1);	/* Scroll text region down one line */
+				scrollok(text, FALSE);
+				page_length = 0;
+				passed_end = 0;
+				for (i = 0; i < height - 4; i++) {
+					if (!i) {
+						/* print first line of page */
+						print_line(text, 0, width - 2);
+						wnoutrefresh(text);
+					} else
+						/* Called to update 'end_reached' and 'page' */
+						get_line();
+					if (!passed_end)
+						page_length++;
+					if (end_reached && !passed_end)
+						passed_end = 1;
+				}
+
+				print_position(dialog, height, width);
+				wmove(dialog, cur_y, cur_x);	/* Restore cursor position */
+				wrefresh(dialog);
+			}
+			break;
+		case 'B':	/* Previous page */
+		case 'b':
+		case KEY_PPAGE:
+			if (begin_reached)
+				break;
+			back_lines(page_length + height - 4);
+			print_page(text, height - 4, width - 2);
+			print_position(dialog, height, width);
+			wmove(dialog, cur_y, cur_x);
+			wrefresh(dialog);
+			break;
+		case 'J':	/* Next line */
+		case 'j':
+		case KEY_DOWN:
+			if (!end_reached) {
+				begin_reached = 0;
+				scrollok(text, TRUE);
+				scroll(text);	/* Scroll text region up one line */
+				scrollok(text, FALSE);
+				print_line(text, height - 5, width - 2);
+				wnoutrefresh(text);
+				print_position(dialog, height, width);
+				wmove(dialog, cur_y, cur_x);	/* Restore cursor position */
+				wrefresh(dialog);
+			}
+			break;
+		case KEY_NPAGE:	/* Next page */
+		case ' ':
+			if (end_reached)
+				break;
+
+			begin_reached = 0;
+			print_page(text, height - 4, width - 2);
+			print_position(dialog, height, width);
+			wmove(dialog, cur_y, cur_x);
+			wrefresh(dialog);
+			break;
+		case '0':	/* Beginning of line */
+		case 'H':	/* Scroll left */
+		case 'h':
+		case KEY_LEFT:
+			if (hscroll <= 0)
+				break;
+
+			if (key == '0')
+				hscroll = 0;
+			else
+				hscroll--;
+			/* Reprint current page to scroll horizontally */
+			back_lines(page_length);
+			print_page(text, height - 4, width - 2);
+			wmove(dialog, cur_y, cur_x);
+			wrefresh(dialog);
+			break;
+		case 'L':	/* Scroll right */
+		case 'l':
+		case KEY_RIGHT:
+			if (hscroll >= MAX_LEN)
+				break;
+			hscroll++;
+			/* Reprint current page to scroll horizontally */
+			back_lines(page_length);
+			print_page(text, height - 4, width - 2);
+			wmove(dialog, cur_y, cur_x);
+			wrefresh(dialog);
+			break;
+		case ESC:
+			break;
+		}
+	}
+
+	delwin(dialog);
+	free(buf);
+	close(fd);
+	return -1;		/* ESC pressed */
 }
 
 /*
  * Go back 'n' lines in text file. Called by dialog_textbox().
  * 'page' will be updated to point to the desired line in 'buf'.
  */
-static void
-back_lines (int n)
+static void back_lines(int n)
 {
-    int i, fpos;
+	int i, fpos;
 
-    begin_reached = 0;
-    /* We have to distinguish between end_reached and !end_reached
-       since at end of file, the line is not ended by a '\n'.
-       The code inside 'if' basically does a '--page' to move one
-       character backward so as to skip '\n' of the previous line */
-    if (!end_reached) {
-	/* Either beginning of buffer or beginning of file reached? */
-	if (page == buf) {
-	    if ((fpos = lseek (fd, 0, SEEK_CUR)) == -1) {
-		endwin ();
-		fprintf (stderr, "\nError moving file pointer in "
-			 "back_lines().\n");
-		exit (-1);
-	    }
-	    if (fpos > bytes_read) {	/* Not beginning of file yet */
-		/* We've reached beginning of buffer, but not beginning of
-		   file yet, so read previous part of file into buffer.
-		   Note that we only move backward for BUF_SIZE/2 bytes,
-		   but not BUF_SIZE bytes to avoid re-reading again in
-		   print_page() later */
-		/* Really possible to move backward BUF_SIZE/2 bytes? */
-		if (fpos < BUF_SIZE / 2 + bytes_read) {
-		    /* No, move less then */
-		    if (lseek (fd, 0, SEEK_SET) == -1) {
-			endwin ();
-			fprintf (stderr, "\nError moving file pointer in "
-				 "back_lines().\n");
-			exit (-1);
-		    }
-		    page = buf + fpos - bytes_read;
-		} else {	/* Move backward BUF_SIZE/2 bytes */
-		    if (lseek (fd, -(BUF_SIZE / 2 + bytes_read), SEEK_CUR)
-			== -1) {
-			endwin ();
-			fprintf (stderr, "\nError moving file pointer "
-				 "in back_lines().\n");
-			exit (-1);
-		    }
-		    page = buf + BUF_SIZE / 2;
-		}
-		if ((bytes_read = read (fd, buf, BUF_SIZE)) == -1) {
-		    endwin ();
-		    fprintf (stderr, "\nError reading file in back_lines().\n");
-		    exit (-1);
-		}
-		buf[bytes_read] = '\0';
-	    } else {		/* Beginning of file reached */
-		begin_reached = 1;
-		return;
-	    }
-	}
-	if (*(--page) != '\n') {	/* '--page' here */
-	    /* Something's wrong... */
-	    endwin ();
-	    fprintf (stderr, "\nInternal error in back_lines().\n");
-	    exit (-1);
-	}
-    }
-    /* Go back 'n' lines */
-    for (i = 0; i < n; i++)
-	do {
-	    if (page == buf) {
-		if ((fpos = lseek (fd, 0, SEEK_CUR)) == -1) {
-		    endwin ();
-		    fprintf (stderr,
-			  "\nError moving file pointer in back_lines().\n");
-		    exit (-1);
-		}
-		if (fpos > bytes_read) {
-		    /* Really possible to move backward BUF_SIZE/2 bytes? */
-		    if (fpos < BUF_SIZE / 2 + bytes_read) {
-			/* No, move less then */
-			if (lseek (fd, 0, SEEK_SET) == -1) {
-			    endwin ();
-			    fprintf (stderr, "\nError moving file pointer "
-				     "in back_lines().\n");
-			    exit (-1);
+	begin_reached = 0;
+	/* We have to distinguish between end_reached and !end_reached
+	   since at end of file, the line is not ended by a '\n'.
+	   The code inside 'if' basically does a '--page' to move one
+	   character backward so as to skip '\n' of the previous line */
+	if (!end_reached) {
+		/* Either beginning of buffer or beginning of file reached? */
+		if (page == buf) {
+			if ((fpos = lseek(fd, 0, SEEK_CUR)) == -1) {
+				endwin();
+				fprintf(stderr,
+					"\nError moving file pointer in "
+					"back_lines().\n");
+				exit(-1);
 			}
-			page = buf + fpos - bytes_read;
-		    } else {	/* Move backward BUF_SIZE/2 bytes */
-			if (lseek (fd, -(BUF_SIZE / 2 + bytes_read),
-				   SEEK_CUR) == -1) {
-			    endwin ();
-			    fprintf (stderr, "\nError moving file pointer"
-				     " in back_lines().\n");
-			    exit (-1);
+			if (fpos > bytes_read) {	/* Not beginning of file yet */
+				/* We've reached beginning of buffer, but not beginning of
+				   file yet, so read previous part of file into buffer.
+				   Note that we only move backward for BUF_SIZE/2 bytes,
+				   but not BUF_SIZE bytes to avoid re-reading again in
+				   print_page() later */
+				/* Really possible to move backward BUF_SIZE/2 bytes? */
+				if (fpos < BUF_SIZE / 2 + bytes_read) {
+					/* No, move less then */
+					if (lseek(fd, 0, SEEK_SET) == -1) {
+						endwin();
+						fprintf(stderr,
+							"\nError moving file pointer in "
+							"back_lines().\n");
+						exit(-1);
+					}
+					page = buf + fpos - bytes_read;
+				} else {	/* Move backward BUF_SIZE/2 bytes */
+					if (lseek
+					    (fd, -(BUF_SIZE / 2 + bytes_read),
+					     SEEK_CUR)
+					    == -1) {
+						endwin();
+						fprintf(stderr,
+							"\nError moving file pointer "
+							"in back_lines().\n");
+						exit(-1);
+					}
+					page = buf + BUF_SIZE / 2;
+				}
+				if ((bytes_read =
+				     read(fd, buf, BUF_SIZE)) == -1) {
+					endwin();
+					fprintf(stderr,
+						"\nError reading file in back_lines().\n");
+					exit(-1);
+				}
+				buf[bytes_read] = '\0';
+			} else {	/* Beginning of file reached */
+				begin_reached = 1;
+				return;
 			}
-			page = buf + BUF_SIZE / 2;
-		    }
-		    if ((bytes_read = read (fd, buf, BUF_SIZE)) == -1) {
-			endwin ();
-			fprintf (stderr, "\nError reading file in "
-				 "back_lines().\n");
-			exit (-1);
-		    }
-		    buf[bytes_read] = '\0';
-		} else {	/* Beginning of file reached */
-		    begin_reached = 1;
-		    return;
 		}
-	    }
-	} while (*(--page) != '\n');
-    page++;
+		if (*(--page) != '\n') {	/* '--page' here */
+			/* Something's wrong... */
+			endwin();
+			fprintf(stderr, "\nInternal error in back_lines().\n");
+			exit(-1);
+		}
+	}
+	/* Go back 'n' lines */
+	for (i = 0; i < n; i++)
+		do {
+			if (page == buf) {
+				if ((fpos = lseek(fd, 0, SEEK_CUR)) == -1) {
+					endwin();
+					fprintf(stderr,
+						"\nError moving file pointer in back_lines().\n");
+					exit(-1);
+				}
+				if (fpos > bytes_read) {
+					/* Really possible to move backward BUF_SIZE/2 bytes? */
+					if (fpos < BUF_SIZE / 2 + bytes_read) {
+						/* No, move less then */
+						if (lseek(fd, 0, SEEK_SET) ==
+						    -1) {
+							endwin();
+							fprintf(stderr,
+								"\nError moving file pointer "
+								"in back_lines().\n");
+							exit(-1);
+						}
+						page = buf + fpos - bytes_read;
+					} else {	/* Move backward BUF_SIZE/2 bytes */
+						if (lseek
+						    (fd,
+						     -(BUF_SIZE / 2 +
+						       bytes_read),
+						     SEEK_CUR) == -1) {
+							endwin();
+							fprintf(stderr,
+								"\nError moving file pointer"
+								" in back_lines().\n");
+							exit(-1);
+						}
+						page = buf + BUF_SIZE / 2;
+					}
+					if ((bytes_read =
+					     read(fd, buf, BUF_SIZE)) == -1) {
+						endwin();
+						fprintf(stderr,
+							"\nError reading file in "
+							"back_lines().\n");
+						exit(-1);
+					}
+					buf[bytes_read] = '\0';
+				} else {	/* Beginning of file reached */
+					begin_reached = 1;
+					return;
+				}
+			}
+		} while (*(--page) != '\n');
+	page++;
 }
 
 /*
  * Print a new page of text. Called by dialog_textbox().
  */
-static void
-print_page (WINDOW * win, int height, int width)
+static void print_page(WINDOW * win, int height, int width)
 {
-    int i, passed_end = 0;
+	int i, passed_end = 0;
 
-    page_length = 0;
-    for (i = 0; i < height; i++) {
-	print_line (win, i, width);
-	if (!passed_end)
-	    page_length++;
-	if (end_reached && !passed_end)
-	    passed_end = 1;
-    }
-    wnoutrefresh (win);
+	page_length = 0;
+	for (i = 0; i < height; i++) {
+		print_line(win, i, width);
+		if (!passed_end)
+			page_length++;
+		if (end_reached && !passed_end)
+			passed_end = 1;
+	}
+	wnoutrefresh(win);
 }
 
 /*
  * Print a new line of text. Called by dialog_textbox() and print_page().
  */
-static void
-print_line (WINDOW * win, int row, int width)
+static void print_line(WINDOW * win, int row, int width)
 {
-    int y, x;
-    char *line;
+	int y, x;
+	char *line;
 
-    line = get_line ();
-    line += MIN (strlen (line), hscroll);	/* Scroll horizontally */
-    wmove (win, row, 0);	/* move cursor to correct line */
-    waddch (win, ' ');
-    waddnstr (win, line, MIN (strlen (line), width - 2));
+	line = get_line();
+	line += MIN(strlen(line), hscroll);	/* Scroll horizontally */
+	wmove(win, row, 0);	/* move cursor to correct line */
+	waddch(win, ' ');
+	waddnstr(win, line, MIN(strlen(line), width - 2));
 
-    getyx (win, y, x);
-    /* Clear 'residue' of previous line */
+	getyx(win, y, x);
+	/* Clear 'residue' of previous line */
 #if OLD_NCURSES
-    {
-        int i;
-        for (i = 0; i < width - x; i++)
-	    waddch (win, ' ');
-    }
+	{
+		int i;
+		for (i = 0; i < width - x; i++)
+			waddch(win, ' ');
+	}
 #else
-    wclrtoeol(win);
+	wclrtoeol(win);
 #endif
 }
 
@@ -486,71 +502,73 @@
  * 'page' should point to start of current line before calling, and will be
  * updated to point to start of next line.
  */
-static char *
-get_line (void)
+static char *get_line(void)
 {
-    int i = 0, fpos;
-    static char line[MAX_LEN + 1];
+	int i = 0, fpos;
+	static char line[MAX_LEN + 1];
 
-    end_reached = 0;
-    while (*page != '\n') {
-	if (*page == '\0') {
-	    /* Either end of file or end of buffer reached */
-	    if ((fpos = lseek (fd, 0, SEEK_CUR)) == -1) {
-		endwin ();
-		fprintf (stderr, "\nError moving file pointer in "
-			 "get_line().\n");
-		exit (-1);
-	    }
-	    if (fpos < file_size) {	/* Not end of file yet */
-		/* We've reached end of buffer, but not end of file yet,
-		   so read next part of file into buffer */
-		if ((bytes_read = read (fd, buf, BUF_SIZE)) == -1) {
-		    endwin ();
-		    fprintf (stderr, "\nError reading file in get_line().\n");
-		    exit (-1);
+	end_reached = 0;
+	while (*page != '\n') {
+		if (*page == '\0') {
+			/* Either end of file or end of buffer reached */
+			if ((fpos = lseek(fd, 0, SEEK_CUR)) == -1) {
+				endwin();
+				fprintf(stderr,
+					"\nError moving file pointer in "
+					"get_line().\n");
+				exit(-1);
+			}
+			if (fpos < file_size) {	/* Not end of file yet */
+				/* We've reached end of buffer, but not end of file yet,
+				   so read next part of file into buffer */
+				if ((bytes_read =
+				     read(fd, buf, BUF_SIZE)) == -1) {
+					endwin();
+					fprintf(stderr,
+						"\nError reading file in get_line().\n");
+					exit(-1);
+				}
+				buf[bytes_read] = '\0';
+				page = buf;
+			} else {
+				if (!end_reached)
+					end_reached = 1;
+				break;
+			}
+		} else if (i < MAX_LEN)
+			line[i++] = *(page++);
+		else {
+			/* Truncate lines longer than MAX_LEN characters */
+			if (i == MAX_LEN)
+				line[i++] = '\0';
+			page++;
 		}
-		buf[bytes_read] = '\0';
-		page = buf;
-	    } else {
-		if (!end_reached)
-		    end_reached = 1;
-		break;
-	    }
-	} else if (i < MAX_LEN)
-	    line[i++] = *(page++);
-	else {
-	    /* Truncate lines longer than MAX_LEN characters */
-	    if (i == MAX_LEN)
-		line[i++] = '\0';
-	    page++;
 	}
-    }
-    if (i <= MAX_LEN)
-	line[i] = '\0';
-    if (!end_reached)
-	page++;			/* move pass '\n' */
+	if (i <= MAX_LEN)
+		line[i] = '\0';
+	if (!end_reached)
+		page++;		/* move pass '\n' */
 
-    return line;
+	return line;
 }
 
 /*
  * Print current position
  */
-static void
-print_position (WINDOW * win, int height, int width)
+static void print_position(WINDOW * win, int height, int width)
 {
-    int fpos, percent;
+	int fpos, percent;
 
-    if ((fpos = lseek (fd, 0, SEEK_CUR)) == -1) {
-	endwin ();
-	fprintf (stderr, "\nError moving file pointer in print_position().\n");
-	exit (-1);
-    }
-    wattrset (win, position_indicator_attr);
-    wbkgdset (win, position_indicator_attr & A_COLOR);
-    percent = !file_size ?
-	100 : ((fpos - bytes_read + page - buf) * 100) / file_size;
-    wmove (win, height - 3, width - 9);
-    wprintw (win, "(%3d%%)", percent);
+	if ((fpos = lseek(fd, 0, SEEK_CUR)) == -1) {
+		endwin();
+		fprintf(stderr,
+			"\nError moving file pointer in print_position().\n");
+		exit(-1);
+	}
+	wattrset(win, position_indicator_attr);
+	wbkgdset(win, position_indicator_attr & A_COLOR);
+	percent = !file_size ?
+	    100 : ((fpos - bytes_read + page - buf) * 100) / file_size;
+	wmove(win, height - 3, width - 9);
+	wprintw(win, "(%3d%%)", percent);
 }