Add tests for boundary conditions of struct tm.

Struct tm is limited by it's year being an int.

1 files changed, 125 insertions, 1 deletions

diff --git a/src/regress/lib/libc/time/time_conversion/timetest.c b/src/regress/lib/libc/time/time_conversion/timetest.c
index 825315c464..77a7cbe115 100644
--- a/src/regress/lib/libc/time/time_conversion/timetest.c
+++ b/src/regress/lib/libc/time/time_conversion/timetest.c
@@ -1,4 +1,4 @@
-/*      $OpenBSD: timetest.c,v 1.1 2022/11/06 12:57:08 beck Exp $ */
+/*      $OpenBSD: timetest.c,v 1.2 2022/11/09 18:11:45 beck Exp $ */
 
 /*
  * Copyright (c) 2022 Bob Beck <beck@openbsd.org>
@@ -765,6 +765,130 @@ struct timetest timetests[] = {
                 },
         },
         {
+                .descr="maxint struct tm",
+                .timezone="right/America/Edmonton",
+                .time=67767976204675199,
+                .local_tm=              {
+                        .tm_year=2147481747,
+                        .tm_mon=0,
+                        .tm_mday=31,
+                        .tm_hour=16,
+                        .tm_min=59,
+                        .tm_sec=32,
+                        .tm_wday=4,
+                        .tm_yday=30,
+                        .tm_isdst=0,
+                        .tm_gmtoff=-25200,
+                        .tm_zone="MST"
+                },
+                .gmt_tm=                {
+                        .tm_year=2147481747,
+                        .tm_mon=0,
+                        .tm_mday=31,
+                        .tm_hour=23,
+                        .tm_min=59,
+                        .tm_sec=59,
+                        .tm_wday=4,
+                        .tm_yday=30,
+                        .tm_isdst=0,
+                        .tm_gmtoff=0,
+                        .tm_zone="GMT"
+                },
+        },
+        {
+                .descr="minint struct tm",
+                .timezone="right/America/Edmonton",
+                .time=-67768038398073601,
+                .local_tm=              {
+                        .tm_year=-2147483578,
+                        .tm_mon=0,
+                        .tm_mday=31,
+                        .tm_hour=16,
+                        .tm_min=26,
+                        .tm_sec=7,
+                        .tm_wday=2,
+                        .tm_yday=30,
+                        .tm_isdst=0,
+                        .tm_gmtoff=-27232,
+                        .tm_zone="LMT"
+                },
+                .gmt_tm=                {
+                        .tm_year=-2147483578,
+                        .tm_mon=0,
+                        .tm_mday=31,
+                        .tm_hour=23,
+                        .tm_min=59,
+                        .tm_sec=59,
+                        .tm_wday=2,
+                        .tm_yday=30,
+                        .tm_isdst=0,
+                        .tm_gmtoff=0,
+                        .tm_zone="GMT"
+                },
+        },
+        {
+                .descr="maxint struct tm",
+                .timezone="right/UTC",
+                .time=67767976204675199,
+                .local_tm=              {
+                        .tm_year=2147481747,
+                        .tm_mon=0,
+                        .tm_mday=31,
+                        .tm_hour=23,
+                        .tm_min=59,
+                        .tm_sec=32,
+                        .tm_wday=4,
+                        .tm_yday=30,
+                        .tm_isdst=0,
+                        .tm_gmtoff=0,
+                        .tm_zone="UTC"
+                },
+                .gmt_tm=                {
+                        .tm_year=2147481747,
+                        .tm_mon=0,
+                        .tm_mday=31,
+                        .tm_hour=23,
+                        .tm_min=59,
+                        .tm_sec=59,
+                        .tm_wday=4,
+                        .tm_yday=30,
+                        .tm_isdst=0,
+                        .tm_gmtoff=0,
+                        .tm_zone="GMT"
+                },
+        },
+        {
+                .descr="minint struct tm",
+                .timezone="right/UTC",
+                .time=-67768038398073601,
+                .local_tm=              {
+                        .tm_year=-2147483578,
+                        .tm_mon=0,
+                        .tm_mday=31,
+                        .tm_hour=23,
+                        .tm_min=59,
+                        .tm_sec=59,
+                        .tm_wday=2,
+                        .tm_yday=30,
+                        .tm_isdst=0,
+                        .tm_gmtoff=0,
+                        .tm_zone="UTC"
+                },
+                .gmt_tm=                {
+                        .tm_year=-2147483578,
+                        .tm_mon=0,
+                        .tm_mday=31,
+                        .tm_hour=23,
+                        .tm_min=59,
+                        .tm_sec=59,
+                        .tm_wday=2,
+                        .tm_yday=30,
+                        .tm_isdst=0,
+                        .tm_gmtoff=0,
+                        .tm_zone="GMT"
+                },
+        },
+        {
                 .descr="0000",
                 .timezone="posix/America/Edmonton",
                 .time=-62167219200,