LCOV - code coverage report
Current view: top level - common - t-timestuff.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 41 49 83.7 %
Date: 2016-09-12 13:01:59 Functions: 3 3 100.0 %

          Line data    Source code
       1             : /* t-timestuff.c - Regression tests for time functions
       2             :  * Copyright (C) 2007 Free Software Foundation, Inc.
       3             :  *
       4             :  * This file is part of GnuPG.
       5             :  *
       6             :  * GnuPG is free software; you can redistribute it and/or modify it
       7             :  * under the terms of either
       8             :  *
       9             :  *   - the GNU Lesser General Public License as published by the Free
      10             :  *     Software Foundation; either version 3 of the License, or (at
      11             :  *     your option) any later version.
      12             :  *
      13             :  * or
      14             :  *
      15             :  *   - the GNU General Public License as published by the Free
      16             :  *     Software Foundation; either version 2 of the License, or (at
      17             :  *     your option) any later version.
      18             :  *
      19             :  * or both in parallel, as here.
      20             :  *
      21             :  * GnuPG is distributed in the hope that it will be useful, but
      22             :  * WITHOUT ANY WARRANTY; without even the implied warranty of
      23             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      24             :  * General Public License for more details.
      25             :  *
      26             :  * You should have received a copies of the GNU General Public License
      27             :  * and the GNU Lesser General Public License along with this program;
      28             :  * if not, see <http://www.gnu.org/licenses/>.
      29             :  */
      30             : 
      31             : #include <config.h>
      32             : #include <stdio.h>
      33             : #include <stdlib.h>
      34             : #include <string.h>
      35             : #include <errno.h>
      36             : #include <time.h>
      37             : 
      38             : #include "mischelp.h"
      39             : 
      40             : #include "t-support.h"
      41             : 
      42             : 
      43             : static int
      44          36 : cmp_time_s (struct tm *a, struct tm *b)
      45             : {
      46          36 :   if (a->tm_year != b->tm_year
      47          36 :       || a->tm_mon  != b->tm_mon
      48          36 :       || a->tm_mday != b->tm_mday
      49          36 :       || a->tm_hour != b->tm_hour
      50          36 :       || a->tm_min  != b->tm_min
      51          36 :       || a->tm_sec  != b->tm_sec
      52          36 :       || a->tm_wday != b->tm_wday
      53          36 :       || a->tm_yday != b->tm_yday
      54          36 :       || !a->tm_isdst != !b->tm_isdst)
      55           0 :     return -1;
      56          36 :   return 0;
      57             : }
      58             : 
      59             : 
      60             : 
      61             : static void
      62           1 : test_timegm (void)
      63             : {
      64             :   static struct {
      65             :     int year, mon, mday, hour, min, sec;
      66             :   } tvalues[] = {
      67             :     { -1 },
      68             :     { -2,  1 },
      69             :     { -2,  2 },
      70             :     { -2,  86399 },
      71             :     { -2,  86400 },
      72             :     { -2,  0x7ffffffe },
      73             :     { -2,  0x7fffffff },
      74             :     /* Note: Because we use mktime below we can only start with the
      75             :        day after Epoch.  */
      76             :     { 1970, 0, 2, 0, 0 , 1},
      77             :     { 1970, 0, 2, 0, 0 , 2},
      78             :     { 1970, 0, 2, 12, 0 , 0},
      79             :     { 1970, 0, 2, 23, 59 , 59},
      80             :     { 1999, 11, 31, 23, 59 , 59},
      81             :     { 2000, 0, 1, 0, 0, 0},
      82             :     { 2000, 0, 1, 0, 0, 1},
      83             :     { 2010, 11, 31, 23, 59 , 59},
      84             :     { 2010, 0, 1, 0, 0, 0},
      85             :     { 2010, 0, 1, 0, 0, 1},
      86             :     /* On GNU based 32 bit systems the end of all ticks will be on
      87             :        20380119T031408 (unless Uli takes compassion on us and changes
      88             :        time_t to a u64).  We check that the previous day is okay.  */
      89             :     { 2038, 0, 18, 23, 59, 59}
      90             : 
      91             :   };
      92             :   int tidx;
      93             :   time_t now, atime;
      94             :   struct tm tbuf, tbuf2, *tp;
      95             : 
      96          19 :   for (tidx=0; tidx < DIM (tvalues); tidx++)
      97             :     {
      98          18 :       if (tvalues[tidx].year == -1)
      99             :         {
     100           1 :           now = time (NULL);
     101             :         }
     102          17 :       else if (tvalues[tidx].year == -2)
     103             :         {
     104           6 :           now = tvalues[tidx].mon;
     105             :         }
     106             :       else
     107             :         {
     108          11 :           memset (&tbuf, 0, sizeof tbuf);
     109          11 :           tbuf.tm_year = tvalues[tidx].year - 1900;
     110          11 :           tbuf.tm_mon  = tvalues[tidx].mon;
     111          11 :           tbuf.tm_mday = tvalues[tidx].mday;
     112          11 :           tbuf.tm_hour = tvalues[tidx].hour;
     113          11 :           tbuf.tm_min  = tvalues[tidx].min;
     114          11 :           tbuf.tm_sec  = tvalues[tidx].sec;
     115             : #ifdef HAVE_TIMEGM
     116          11 :           now = timegm (&tbuf);
     117             : #else
     118             :           now = mktime (&tbuf);
     119             : #endif
     120             :         }
     121          18 :       if (now == (time_t)(-1))
     122           0 :         fail (tidx);
     123             : 
     124          18 :       tp = gmtime (&now);
     125          18 :       if (!tp)
     126           0 :         fail (tidx);
     127             :       else
     128             :         {
     129          18 :           tbuf = *tp;
     130          18 :           tbuf2 = tbuf;
     131             : #ifdef HAVE_TIMEGM
     132          18 :           atime = timegm (&tbuf);
     133             : #else
     134             :           atime = mktime (&tbuf);
     135             : #endif
     136          18 :           if (atime == (time_t)(-1))
     137           0 :             fail (tidx);
     138          18 :           else if (atime != now)
     139           0 :             fail (tidx);
     140             : 
     141          18 :           tp = gmtime (&atime);
     142          18 :           if (!tp)
     143           0 :             fail (tidx);
     144          18 :           else if (cmp_time_s (tp, &tbuf))
     145           0 :             fail (tidx);
     146          18 :           else if (cmp_time_s (tp, &tbuf2))
     147           0 :             fail (tidx);
     148             :         }
     149             :     }
     150           1 : }
     151             : 
     152             : 
     153             : 
     154             : int
     155           1 : main (int argc, char **argv)
     156             : {
     157             :   (void)argc;
     158             :   (void)argv;
     159             : 
     160             :   /* If we do not have timegm, we use mktime.  However, we need to use
     161             :      UTC in this case so that the 20380118T235959 test does not fail
     162             :      for other timezones.  */
     163             : #ifndef HAVE_TIMEGM
     164             : # ifdef HAVE_SETENV
     165             :   setenv ("TZ", "UTC", 1);
     166             : #else
     167             :   putenv (xstrdup ("TZ=UTC"));
     168             : #endif
     169             :   tzset ();
     170             : #endif
     171             : 
     172           1 :   test_timegm ();
     173             : 
     174           1 :   return 0;
     175             : }

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