X-Git-Url: http://git.sven.stormbind.net/?p=sven%2Fexfat-utils.git;a=blobdiff_plain;f=mkfs%2Fcbm.c;h=57e57845f541d21f2e3598098dc1b8d6204bf134;hp=c631d8a0d66edb7480a439f4010626a78a9999ec;hb=d99d52ff73deacfe427403765682015d5825799b;hpb=4efb596cee7f7cc961990f8dffc3b210e579e49c

diff --git a/mkfs/cbm.c b/mkfs/cbm.c
index c631d8a..57e5784 100644
--- a/mkfs/cbm.c
+++ b/mkfs/cbm.c
@@ -2,11 +2,12 @@
 	cbm.c (09.11.10)
 	Clusters Bitmap creation code.
 
-	Copyright (C) 2011-2013  Andrew Nayenko
+	Free exFAT implementation.
+	Copyright (C) 2011-2016  Andrew Nayenko
 
-	This program is free software: you can redistribute it and/or modify
+	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 3 of the License, or
+	the Free Software Foundation, either version 2 of the License, or
 	(at your option) any later version.
 
 	This program is distributed in the hope that it will be useful,
@@ -14,15 +15,17 @@
 	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, see <http://www.gnu.org/licenses/>.
+	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.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
-#include <limits.h>
 #include "cbm.h"
 #include "fat.h"
 #include "uct.h"
 #include "rootdir.h"
+#include <limits.h>
+#include <string.h>
 
 static off_t cbm_alignment(void)
 {
@@ -42,24 +45,26 @@ static int cbm_write(struct exfat_dev* dev)
 			DIV_ROUND_UP(cbm.get_size(), get_cluster_size()) +
 			DIV_ROUND_UP(uct.get_size(), get_cluster_size()) +
 			DIV_ROUND_UP(rootdir.get_size(), get_cluster_size());
-	size_t bitmap_size = DIV_ROUND_UP(allocated_clusters, CHAR_BIT);
-	uint8_t* bitmap = malloc(bitmap_size);
+	size_t bitmap_size = ROUND_UP(allocated_clusters, CHAR_BIT);
+	bitmap_t* bitmap = malloc(BMAP_SIZE(bitmap_size));
 	size_t i;
 
 	if (bitmap == NULL)
 	{
-		exfat_error("failed to allocate bitmap of %zu bytes", bitmap_size);
+		exfat_error("failed to allocate bitmap of %zu bytes",
+				BMAP_SIZE(bitmap_size));
 		return 1;
 	}
+	memset(bitmap, 0, BMAP_SIZE(bitmap_size));
 
-	for (i = 0; i < bitmap_size * CHAR_BIT; i++)
+	for (i = 0; i < bitmap_size; i++)
 		if (i < allocated_clusters)
 			BMAP_SET(bitmap, i);
-		else
-			BMAP_CLR(bitmap, i);
-	if (exfat_write(dev, bitmap, bitmap_size) < 0)
+	if (exfat_write(dev, bitmap, bitmap_size / CHAR_BIT) < 0)
 	{
-		exfat_error("failed to write bitmap of %zu bytes", bitmap_size);
+		free(bitmap);
+		exfat_error("failed to write bitmap of %zu bytes",
+				bitmap_size / CHAR_BIT);
 		return 1;
 	}
 	free(bitmap);