1 files changed, 46 insertions, 0 deletions
diff --git a/timezone/tst-bz28707.c b/timezone/tst-bz28707.c
new file mode 100644
index 0000000000..0a9df1e9a0
--- /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>