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From: Andreas Schwab <schwab@suse.de>
To: fweimer@redhat.com (Florian Weimer)
Cc: libc-alpha@sourceware.org
Subject: Re: [PATCH] Make padding in struct sockaddr_storage explicit [BZ #20111]
Date: Thu, 19 May 2016 13:52:00 -0000	[thread overview]
Message-ID: <mvm60ua5fpa.fsf@hawking.suse.de> (raw)
In-Reply-To: <20160519131238.1C38540113D03@oldenburg.str.redhat.com> (Florian Weimer's message of "Thu, 19 May 2016 15:12:38 +0200")

fweimer@redhat.com (Florian Weimer) writes:

> diff --git a/bits/socket.h b/bits/socket.h
> index ab9f242..b3f2753 100644
> --- a/bits/socket.h
> +++ b/bits/socket.h
> @@ -164,6 +164,7 @@ struct sockaddr
>  struct sockaddr_storage
>    {
>      __SOCKADDR_COMMON (ss_);	/* Address family, etc.  */
> +    char __ss_padding_init[sizeof (__ss_aligntype) - __SOCKADDR_COMMON_SIZE];

That needs to be __alignof, otherwise you change the layout, and you
need to watch out for zero padding.

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE  1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."

  reply	other threads:[~2016-05-19 13:40 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-19 13:40 Florian Weimer
2016-05-19 13:52 ` Andreas Schwab [this message]
2016-05-19 14:37   ` Florian Weimer
2016-05-19 15:28     ` Andreas Schwab
2016-05-19 15:48       ` Florian Weimer
2016-05-19 16:12         ` Andreas Schwab
2016-05-20  8:56           ` Florian Weimer
2016-05-23  8:44             ` Andreas Schwab
2016-05-23  8:57               ` Florian Weimer

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