From: Rich Felker <dalias@libc.org>
To: Petr Pisar <petr.pisar@atlas.cz>
Cc: musl@lists.openwall.com
Subject: Re: [musl] strptime(s, "%Y-%j", &tm) does not update month and day
Date: Sat, 11 May 2024 17:28:54 -0400 [thread overview]
Message-ID: <20240511212853.GS10433@brightrain.aerifal.cx> (raw)
In-Reply-To: <Zj-Ny2wTG_PcMCd7@album.bayer.uni.cx>
On Sat, May 11, 2024 at 05:24:59PM +0200, Petr Pisar wrote:
> Hello,
>
> When debugging a libisds test failure with musl-1.2.5
> <https://bugs.gentoo.org/show_bug.cgi?id=928107>, I found that musl's
> strptime() does not handle "%Y-%j" properly. It accepts the format, it parses
> the input string, it returns a correct pointer past the input string, but it
> does not update tm.tm_mon and tm.tm_mday fileds of the third argument.
This is behaving as specified. Previously, the behavior was
unspecified. POSIX has amended it for future issues as the resolution
of https://austingroupbugs.net/view.php?id=1727 to read:
The tm_yday member of the tm structure pointed to by tm shall be
set to this number minus 1.
strptime generally does not behave like mktime, doing
normalizations/conversions.
Rich
next prev parent reply other threads:[~2024-05-11 21:28 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-11 15:24 Petr Pisar
2024-05-11 21:28 ` Rich Felker [this message]
2024-05-12 7:54 ` Petr Pisar
2024-05-13 12:18 ` Rich Felker
2024-05-13 21:18 ` Thorsten Glaser
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