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* [Bug time/29951] New: daylight variable not set correctly if last DST change coincides with offset change @ 2023-01-02 9:51 fweimer at redhat dot com 2023-01-02 9:51 ` [Bug time/29951] " fweimer at redhat dot com ` (2 more replies) 0 siblings, 3 replies; 4+ messages in thread From: fweimer at redhat dot com @ 2023-01-02 9:51 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=29951 Bug ID: 29951 Summary: daylight variable not set correctly if last DST change coincides with offset change Product: glibc Version: 2.37 Status: NEW Severity: normal Priority: P2 Component: time Assignee: unassigned at sourceware dot org Reporter: fweimer at redhat dot com Target Milestone: --- The daylight variable is supposed to be set to 1 if DST is every in use for the current time zone. But __tzfile_read does this: __daylight = rule_stdoff != rule_dstoff; This check can fail to set __daylight to 1 if the DST and non-DST offsets happen to be the same. The current tz data for Africa/Tripoli exposes this bug. -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug time/29951] daylight variable not set correctly if last DST change coincides with offset change 2023-01-02 9:51 [Bug time/29951] New: daylight variable not set correctly if last DST change coincides with offset change fweimer at redhat dot com @ 2023-01-02 9:51 ` fweimer at redhat dot com 2023-01-02 11:19 ` fweimer at redhat dot com 2023-01-05 17:43 ` fweimer at redhat dot com 2 siblings, 0 replies; 4+ messages in thread From: fweimer at redhat dot com @ 2023-01-02 9:51 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=29951 Florian Weimer <fweimer at redhat dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |fweimer at redhat dot com Assignee|unassigned at sourceware dot org |fweimer at redhat dot com Flags| |security- Status|NEW |ASSIGNED -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug time/29951] daylight variable not set correctly if last DST change coincides with offset change 2023-01-02 9:51 [Bug time/29951] New: daylight variable not set correctly if last DST change coincides with offset change fweimer at redhat dot com 2023-01-02 9:51 ` [Bug time/29951] " fweimer at redhat dot com @ 2023-01-02 11:19 ` fweimer at redhat dot com 2023-01-05 17:43 ` fweimer at redhat dot com 2 siblings, 0 replies; 4+ messages in thread From: fweimer at redhat dot com @ 2023-01-02 11:19 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=29951 --- Comment #1 from Florian Weimer <fweimer at redhat dot com> --- Patch posted: [PATCH] time: Set daylight to 1 for matching DST/offset change (bug 29951) <https://sourceware.org/pipermail/libc-alpha/2023-January/144434.html> -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug time/29951] daylight variable not set correctly if last DST change coincides with offset change 2023-01-02 9:51 [Bug time/29951] New: daylight variable not set correctly if last DST change coincides with offset change fweimer at redhat dot com 2023-01-02 9:51 ` [Bug time/29951] " fweimer at redhat dot com 2023-01-02 11:19 ` fweimer at redhat dot com @ 2023-01-05 17:43 ` fweimer at redhat dot com 2 siblings, 0 replies; 4+ messages in thread From: fweimer at redhat dot com @ 2023-01-05 17:43 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=29951 Florian Weimer <fweimer at redhat dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Target Milestone|--- |2.37 Resolution|--- |FIXED --- Comment #2 from Florian Weimer <fweimer at redhat dot com> --- Fixed via: commit 35141f304e319109c322f797ae71c0b9420ccb05 Author: Florian Weimer <fweimer@redhat.com> Date: Thu Jan 5 18:21:25 2023 +0100 time: Set daylight to 1 for matching DST/offset change (bug 29951) The daylight variable is supposed to be set to 1 if DST is ever in use for the current time zone. But __tzfile_read used to do this: __daylight = rule_stdoff != rule_dstoff; This check can fail to set __daylight to 1 if the DST and non-DST offsets happen to be the same. -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2023-01-05 17:43 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2023-01-02 9:51 [Bug time/29951] New: daylight variable not set correctly if last DST change coincides with offset change fweimer at redhat dot com 2023-01-02 9:51 ` [Bug time/29951] " fweimer at redhat dot com 2023-01-02 11:19 ` fweimer at redhat dot com 2023-01-05 17:43 ` fweimer at redhat dot com
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