From e05036b194559cbfcdfcfb1b920d37b939e3e35c Mon Sep 17 00:00:00 2001 From: Florian Weimer <fweimer@redhat.com> Date: Thu, 5 Jan 2023 18:21:25 +0100 Subject: [PATCH 182/182] 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. (cherry picked from commit 35141f304e319109c322f797ae71c0b9420ccb05) --- NEWS | 1 + time/tzfile.c | 41 +++++++++++++------------ timezone/Makefile | 4 ++- timezone/testdata/XT6 | Bin 0 -> 625 bytes timezone/tst-bz29951.c | 68 +++++++++++++++++++++++++++++++++++++++++ 5 files changed, 94 insertions(+), 20 deletions(-) create mode 100644 timezone/testdata/XT6 create mode 100644 timezone/tst-bz29951.c diff --git a/NEWS b/NEWS index dbe2b2e301df..8c79e83b775c 100644 --- a/NEWS +++ b/NEWS @@ -51,6 +51,7 @@ The following bugs are resolved with this release: [29730] broken y2038 support in fstatat on MIPS N64 [29771] Restore IPC_64 support in sysvipc *ctl functions [29776] elf/tst-tlsopt-powerpc fails when compiled with -mcpu=power10 + [29951] time: Set daylight to 1 for matching DST/offset change Version 2.36
