Another cleanup patch that's been in my tree for a while. Again I think it's

originally from Bernhard Fischer...

1 files changed, 14 insertions, 40 deletions

diff --git a/coreutils/fold.c b/coreutils/fold.c
index 68f24e61a..31412da07 100644
--- a/coreutils/fold.c
+++ b/coreutils/fold.c
@@ -6,19 +6,7 @@
    Modified for busybox based on coreutils v 5.0
    Copyright (C) 2003 Glenn McGrath <bug1@iinet.net.au>
 
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+   Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
 */
 
 #include <ctype.h>
@@ -26,13 +14,15 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <getopt.h>
 #include <sys/types.h>
-
+#include <unistd.h>
 #include "busybox.h"
 
 /* If nonzero, count bytes, not column positions. */
-static int count_bytes;
+static unsigned long flags;
+#define FLAG_COUNT_BYTES	1
+#define FLAG_BREAK_SPACES	2
+#define FLAG_WIDTH			4
 
 /* Assuming the current column is COLUMN, return the column that
    printing C will move the cursor to.
@@ -40,7 +30,7 @@ static int count_bytes;
 
 static int adjust_column(int column, char c)
 {
-	if (!count_bytes) {
+	if (!(flags & FLAG_COUNT_BYTES)) {
 		if (c == '\b') {
 			if (column > 0)
 				column--;
@@ -57,18 +47,14 @@ static int adjust_column(int column, char c)
 
 extern int fold_main(int argc, char **argv)
 {
-	/* If nonzero, try to break on whitespace. */
-	int break_spaces;
-
 	/* If nonzero, at least one of the files we read was standard input. */
-	int have_read_stdin;
+	int have_read_stdin = 0;
 
 	int width = 80;
 	int i;
-	int optc;
 	int errs = 0;
 
-	break_spaces = count_bytes = have_read_stdin = 0;
+	have_read_stdin = 0;
 
 	/* Turn any numeric options into -w options.  */
 	for (i = 1; i < argc; i++) {
@@ -88,22 +74,10 @@ extern int fold_main(int argc, char **argv)
 		}
 	}
 
-	while ((optc = getopt(argc, argv, "bsw:")) > 0) {
-		switch (optc) {
-			case 'b':		/* Count bytes rather than columns. */
-				count_bytes = 1;
-				break;
-			case 's':		/* Break at word boundaries. */
-				break_spaces = 1;
-				break;
-			case 'w': {	/* Line width. */
-				width = bb_xgetlarg(optarg, 10, 1, 10000);
-				break;
-			}
-			default:
-				bb_show_usage();
-		}
-	}
+	char *w_opt;
+	flags = bb_getopt_ulflags(argc, argv, "bsw:", &w_opt);
+	if (flags & 4)
+		width = bb_xgetlarg(w_opt, 10, 1, 10000);
 
 	argv += optind;
 	if (!*argv) {
@@ -139,7 +113,7 @@ rescan:
 					/* This character would make the line too long.
 			 		  Print the line plus a newline, and make this character
 					   start the next line. */
-					if (break_spaces) {
+					if (flags & FLAG_BREAK_SPACES) {
 						/* Look for the last blank. */
 						int logical_end;