File ipxe-zbin-Fix-size-used-for-memset-in-al.patch of Package qemu.4227

Overview Repositories Revisions Requests Users Attributes Meta

File ipxe-zbin-Fix-size-used-for-memset-in-al.patch of Package qemu.4227

From eb5a2ba5962579e514b377f5fdab7292be0fb2a7 Mon Sep 17 00:00:00 2001
From: "Daniel P. Berrange" <berrange@redhat.com>
Date: Tue, 5 Mar 2013 15:18:20 +0000
Subject: [PATCH] [zbin] Fix size used for memset in alloc_output_file
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The output->buf field is a pointer, not an array, so sizeof() is not
applicable.  We must use the allocated string length instead.

Identified by gcc:

util/zbin.c: In function ‘alloc_output_file’:
  util/zbin.c:146:37: warning: argument to ‘sizeof’ in ‘memset’ call
    is the same expression as the destination; did you mean to
    dereference it? [-Wsizeof-pointer-memaccess]
  memset ( output->buf, 0xff, sizeof ( output->buf ) );

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
---
 src/util/zbin.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/roms/ipxe/src/util/zbin.c b/roms/ipxe/src/util/zbin.c
index 0dabaf1..3b7cf95 100644
--- a/roms/ipxe/src/util/zbin.c
+++ b/roms/ipxe/src/util/zbin.c
@@ -143,7 +143,7 @@ static int alloc_output_file ( size_t max_len, struct output_file *output ) {
 			  max_len );
 		return -1;
 	}
-	memset ( output->buf, 0xff, sizeof ( output->buf ) );
+	memset ( output->buf, 0xff, max_len );
 	return 0;
 }
 
-- 
1.7.7

Places

File ipxe-zbin-Fix-size-used-for-memset-in-al.patch of Package qemu.4227

Places