From: Michihiro NAKAJIMA <ggcueroad@gmail.com>
Date: Mon, 2 Apr 2012 09:29:48 +0000 (+0900)
Subject: Initialize the buffer used for FIEMAP to avoid the error messages
X-Git-Tag: v3.1.0~101
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ff7c1a4053f67ce8574833cfb977d6ef297162da;p=thirdparty%2Flibarchive.git

Initialize the buffer used for FIEMAP to avoid the error messages
valgrind complains about.
---

diff --git a/libarchive/archive_read_disk_entry_from_file.c b/libarchive/archive_read_disk_entry_from_file.c
index a43c0adf9..7402b8d8f 100644
--- a/libarchive/archive_read_disk_entry_from_file.c
+++ b/libarchive/archive_read_disk_entry_from_file.c
@@ -911,6 +911,8 @@ setup_sparse(struct archive_read_disk *a,
 		}
 	}
 
+	/* Initialize buffer to avoid the error valgrind complains about. */
+	memset(buff, 0, sizeof(buff));
 	count = (sizeof(buff) - sizeof(*fm))/sizeof(*fe);
 	fm = (struct fiemap *)buff;
 	fm->fm_start = 0;