From: Andreas Schwab <schwab@suse.de>
To: Zack Weinberg <zackw@panix.com>
Cc: Florian Weimer <fweimer@redhat.com>,
GNU C Library <libc-alpha@sourceware.org>
Subject: Re: [review] manual: Clarify strnlen, wcsnlen, strndup null termination behavior
Date: Wed, 30 Oct 2019 16:47:00 -0000 [thread overview]
Message-ID: <mvma79ifaef.fsf@suse.de> (raw)
In-Reply-To: <CAKCAbMgYPSGZOCDX_qqmt8_DxxRWuqiEZg9OJJEEirOHSv-8+g@mail.gmail.com> (Zack Weinberg's message of "Wed, 30 Oct 2019 12:30:51 -0400")
On Okt 30 2019, Zack Weinberg wrote:
> On Wed, Oct 30, 2019 at 12:20 PM Andreas Schwab <schwab@suse.de> wrote:
>> On Okt 30 2019, Zack Weinberg wrote:
>>
>> > It says that accesses beyond maxlen are forbidden, but it *doesn't*
>> > say that accesses beyond the first NUL are forbidden; therefore they
>> > are allowed.
>>
>> Neither does it say that about strncpy or strncat.
>
> I don't see why that would change anything.
That means that strncpy (x, "a", 10) is undefined.
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."
next prev parent reply other threads:[~2019-10-30 16:47 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-30 10:25 Florian Weimer (Code Review)
2019-10-30 10:44 ` Andreas Schwab
2019-10-30 10:55 ` Florian Weimer
2019-10-30 11:00 ` Andreas Schwab
2019-10-30 11:03 ` Florian Weimer
2019-10-30 11:10 ` Andreas Schwab
2019-10-30 12:01 ` Zack Weinberg
2019-10-30 16:20 ` Andreas Schwab
2019-10-30 16:31 ` Zack Weinberg
2019-10-30 16:47 ` Andreas Schwab [this message]
2019-10-30 16:58 ` Zack Weinberg
2019-10-30 17:26 ` Andreas Schwab
2019-10-30 18:12 ` Zack Weinberg
2019-10-30 18:36 ` Florian Weimer
2019-10-30 17:24 ` Joseph Myers
2019-11-28 9:43 ` Florian Weimer
2019-11-28 15:56 ` Carlos O'Donell
2019-11-28 15:58 ` Carlos O'Donell
2019-11-28 18:23 ` Rich Felker
2019-11-28 18:38 ` Szabolcs Nagy
2019-11-29 18:20 ` Martin Sebor
2019-11-27 19:08 ` Carlos O'Donell (Code Review)
2019-11-27 19:14 ` Florian Weimer (Code Review)
2019-11-27 22:11 ` Carlos O'Donell (Code Review)
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