[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Qemu-trivial] [Qemu-devel] [PATCH for-2.12] dump: Fix build with ne

From: Eric Blake
Subject: Re: [Qemu-trivial] [Qemu-devel] [PATCH for-2.12] dump: Fix build with newer gcc
Date: Tue, 3 Apr 2018 13:46:04 -0500
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0

On 03/27/2018 03:21 PM, Eric Blake wrote:
> gcc 8 on rawhide is picky enough to complain:
> /home/dummy/qemu/dump.c: In function 'create_header32':
> /home/dummy/qemu/dump.c:817:5: error: 'strncpy' output truncated before 
> terminating nul copying 8 bytes from a string of the same length 
> [-Werror=stringop-truncation]
>      strncpy(dh->signature, KDUMP_SIGNATURE, strlen(KDUMP_SIGNATURE));
>      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> But we already have SIG_LEN defined as the right length without needing
> to do a strlen(), and memcpy() is better than strncpy() when we know
> we do not want a trailing NUL byte.
> Signed-off-by: Eric Blake <address@hidden>
> ---
>  dump.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

I'll include this in my qapi+misc pull request for 2.12-rc2

Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

Attachment: signature.asc
Description: OpenPGP digital signature

reply via email to

[Prev in Thread] Current Thread [Next in Thread]