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From ebe899af0dc3215159a9c896ac6f35b72a18cb6e Mon Sep 17 00:00:00 2001
From: Hans-Peter Nilsson <hp@axis.com>
Date: Fri, 17 Dec 2021 21:45:54 +0100
Subject: [PATCH] timezone: test-case for BZ #28707
This test-case is the tzfile for Asuncion generated by
tzlib-2021e as follows, using the tzlib-2021e zic: "zic -d
DEST -r @1546300800 -L /dev/null -b slim
SOURCE/southamerica". Note that in its type 2 header, it
has two entries in its "time-types" array (types), but only
one entry in its "transition types" array (type_idxs).
* timezone/Makefile, timezone/tst-pr28707.c,
timezone/testdata/gen-XT5.sh: New test.
Co-authored-by: Christopher Wong <Christopher.Wong@axis.com>
---
timezone/Makefile | 8 +++++++-
timezone/testdata/gen-XT5.sh | 16 +++++++++++++++
timezone/tst-bz28707.c | 46 ++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 69 insertions(+), 1 deletion(-)
create mode 100755 timezone/testdata/gen-XT5.sh
create mode 100644 timezone/tst-bz28707.c
diff --git a/timezone/Makefile b/timezone/Makefile
index c624a18..f091663 100644
--- a/timezone/Makefile
+++ b/timezone/Makefile
@@ -23,7 +23,7 @@ subdir := timezone
include ../Makeconfig
others := zdump zic
-tests := test-tz tst-timezone tst-tzset
+tests := test-tz tst-timezone tst-tzset tst-bz28707
generated-dirs += testdata
@@ -85,10 +85,12 @@ $(objpfx)tst-timezone.out: $(addprefix $(testdata)/, \
America/Sao_Paulo Asia/Tokyo \
Europe/London)
$(objpfx)tst-tzset.out: $(addprefix $(testdata)/XT, 1 2 3 4)
+$(objpfx)tst-bz28707.out: $(testdata)/XT5
test-tz-ENV = TZDIR=$(testdata)
tst-timezone-ENV = TZDIR=$(testdata)
tst-tzset-ENV = TZDIR=$(testdata)
+tst-bz28707-ENV = TZDIR=$(testdata)
# Note this must come second in the deps list for $(built-program-cmd) to work.
zic-deps = $(objpfx)zic $(leapseconds) yearistype
@@ -122,6 +124,10 @@ $(testdata)/XT%: testdata/XT%
$(make-target-directory)
cp $< $@
+$(testdata)/XT%: testdata/gen-XT%.sh
+ $(SHELL) $< > $@.tmp
+ mv $@.tmp $@
+
$(objpfx)tzselect: tzselect.ksh $(common-objpfx)config.make
sed -e 's|TZDIR=[^}]*|TZDIR=$(zonedir)|' \
-e '/TZVERSION=/s|see_Makefile|"$(version)"|' \
diff --git a/timezone/testdata/gen-XT5.sh b/timezone/testdata/gen-XT5.sh
new file mode 100755
index 0000000..3cea056
--- /dev/null
+++ b/timezone/testdata/gen-XT5.sh
@@ -0,0 +1,16 @@
+#! /bin/sh
+
+# This test-case is the tzfile for America/Asuncion
+# generated by tzlib-2021e as follows, using the tzlib-2021e
+# zic: "zic -d DEST -r @1546300800 -L /dev/null -b slim
+# SOURCE/southamerica". Note that in its type 2 header, it
+# has two entries in its "time-types" array (types), but
+# only one entry in its "transition types" array
+# (type_idxs).
+
+printf \
+'TZif2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0'\
+'\0\0\0\0\0\0\0\1\0\0\0\1\0\0\0\0\0\0\0TZif2\0\0\0\0\0\0\0\0'\
+'\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\0\0\0\2\0\0\0\b\0'\
+'\0\0\0\*\255\200\1\0\0\0\0\0\0\377\377\325\320\1\4-00\0-03\0\n'\
+'<-04>4<-03>,M10.1.0/0,M3.4.0/0\n'
diff --git a/timezone/tst-bz28707.c b/timezone/tst-bz28707.c
new file mode 100644
index 0000000..0a9df1e
--- /dev/null
+++ b/timezone/tst-bz28707.c
@@ -0,0 +1,46 @@
+/* Copyright (C) 2021 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <time.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/* Test that we can use a truncated timezone-file, where the time-type
+ at index 0 is not indexed by the transition-types array (and the
+ transition-types array does not contain at least both one DST and one
+ normal time members). */
+
+static int
+do_test (void)
+{
+ if (setenv ("TZ", "XT5", 1))
+ {
+ puts ("setenv failed.");
+ return 1;
+ }
+
+ tzset ();
+
+ return
+ /* Sanity-check that we got the right timezone-name for DST. For
+ normal time, we're likely to get "-00" (the "unspecified" marker),
+ even though the POSIX timezone string says "-04". Let's not test
+ that. */
+ !(strcmp (tzname[1], "-03") == 0);
+}
+#include <support/test-driver.c>
--
1.8.3.1
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