Date: Fri, 22 Nov 2024 10:36:14 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 282916] The strptime() function in libc/stdtime parses an incorrect wday value with the %x format for dates after 12/31/00 Message-ID: <bug-282916-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D282916 Bug ID: 282916 Summary: The strptime() function in libc/stdtime parses an incorrect wday value with the %x format for dates after 12/31/00 Product: Base System Version: 14.1-RELEASE Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: bin Assignee: bugs@FreeBSD.org Reporter: erkki.moorits@mail.ee Attachment #255388 text/plain mime type: Created attachment 255388 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D255388&action= =3Dedit Test code for strptime(..., "%x", ...) When I use strptime() input descriptor "%x" to decode date, then after 12/3= 1/00 strptime() decodes wrong wday. Here are the different test results from the attached test program. Expected decoded values are (reference tests on Ubuntu Linux): 12/31/00: Time: 00:00:00 Date: 2000-12-31 Wday: 0 Yday: 365 (DST 0 Zone [(null)] offset 0) 01/01/01: Time: 00:00:00 Date: 2001-01-01 Wday: 1 Yday: 000 (DST 0 Zone [(null)] offset 0) 01/02/01: Time: 00:00:00 Date: 2001-01-02 Wday: 2 Yday: 001 (DST 0 Zone [(null)] offset 0) Actual values on FreeBSD 14.1-RELEASE-p5 GENERIC amd64: 12/31/00: Time: 00:00:00 Date: 2000-12-31 Wday: 0 Yday: 365 (DST 0 Zone [(null)] offset 0) 01/01/01: Time: 00:00:00 Date: 2001-01-01 Wday: 0 Yday: 000 (DST 0 Zone [(null)] offset 0) 01/02/01: Time: 00:00:00 Date: 2001-01-02 Wday: 1 Yday: 001 (DST 0 Zone [(null)] offset 0) Also wday values from %c and %x are different (first lines are decoded by u= sing %c, last by using %x): Fri Mar 4 20:05:34 2005: Time: 20:05:34 Date: 2005-03-04 Wday: 5 Yday: 062 (DST 0 Zone [(null)] offset 0) 03/04/05: Time: 00:00:00 Date: 2005-03-04 Wday: 4 Yday: 062 (DST 0 Zone [(null)] offset 0) --=20 You are receiving this mail because: You are the assignee for the bug.=
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