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mktime: DEBUG_MKTIME cleanup

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The DEBUG_MKTIME code no longer works in glibc or in Gnulib.
And it’s no longer needed now that glibc and Gnulib both have
their own testing mechanisms for mktime.
* time/mktime.c (DEBUG_MKTIME): Remove.  All uses removed.
This commit is contained in:
Paul Eggert 2018-11-15 22:59:33 +01:00 committed by Albert ARIBAUD (3ADEV)
parent 86aece3bfb
commit 5d8af1566b
2 changed files with 8 additions and 160 deletions
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6
ChangeLog
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@ -1,5 +1,11 @@
2018-11-15 Paul Eggert <eggert@cs.ucla.edu>
mktime: DEBUG_MKTIME cleanup
The DEBUG_MKTIME code no longer works in glibc or in Gnulib.
And it’s no longer needed now that glibc and Gnulib both have
their own testing mechanisms for mktime.
* time/mktime.c (DEBUG_MKTIME): Remove. All uses removed.
mktime: fix non-EOVERFLOW errno handling
[BZ#23789]
mktime was not properly reporting failures when the underlying

162
time/mktime.c
View File

@ -17,12 +17,6 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
/* Define this to 1 to have a standalone program to test this implementation of
mktime. */
#ifndef DEBUG_MKTIME
# define DEBUG_MKTIME 0
#endif
/* The following macros influence what gets defined when this file is compiled:
Macro/expression Which gnulib module This compilation unit
@ -34,11 +28,9 @@
|| NEED_MKTIME_WINDOWS
NEED_MKTIME_INTERNAL mktime-internal mktime_internal
DEBUG_MKTIME (defined manually) my_mktime, main
*/
#if !defined _LIBC && !DEBUG_MKTIME
#ifndef _LIBC
# include <libc-config.h>
#endif
@ -60,13 +52,6 @@
#include <intprops.h>
#include <verify.h>
#if DEBUG_MKTIME
# include <stdio.h>
/* Make it work even if the system's libc has its own mktime routine. */
# undef mktime
# define mktime my_mktime
#endif /* DEBUG_MKTIME */
#ifndef NEED_MKTIME_INTERNAL
# define NEED_MKTIME_INTERNAL 0
#endif
@ -74,7 +59,7 @@
# define NEED_MKTIME_WINDOWS 0
#endif
#ifndef NEED_MKTIME_WORKING
# define NEED_MKTIME_WORKING DEBUG_MKTIME
# define NEED_MKTIME_WORKING 0
#endif
#include "mktime-internal.h"
@ -562,146 +547,3 @@ weak_alias (mktime, timelocal)
libc_hidden_def (mktime)
libc_hidden_weak (timelocal)
#endif
#if DEBUG_MKTIME
static int
not_equal_tm (const struct tm *a, const struct tm *b)
{
return ((a->tm_sec ^ b->tm_sec)
| (a->tm_min ^ b->tm_min)
| (a->tm_hour ^ b->tm_hour)
| (a->tm_mday ^ b->tm_mday)
| (a->tm_mon ^ b->tm_mon)
| (a->tm_year ^ b->tm_year)
| (a->tm_yday ^ b->tm_yday)
| isdst_differ (a->tm_isdst, b->tm_isdst));
}
static void
print_tm (const struct tm *tp)
{
if (tp)
printf ("%04d-%02d-%02d %02d:%02d:%02d yday %03d wday %d isdst %d",
tp->tm_year + TM_YEAR_BASE, tp->tm_mon + 1, tp->tm_mday,
tp->tm_hour, tp->tm_min, tp->tm_sec,
tp->tm_yday, tp->tm_wday, tp->tm_isdst);
else
printf ("0");
}
static int
check_result (time_t tk, struct tm tmk, time_t tl, const struct tm *lt)
{
if (tk != tl || !lt || not_equal_tm (&tmk, lt))
{
printf ("mktime (");
print_tm (lt);
printf (")\nyields (");
print_tm (&tmk);
printf (") == %ld, should be %ld\n", (long int) tk, (long int) tl);
return 1;
}
return 0;
}
int
main (int argc, char **argv)
{
int status = 0;
struct tm tm, tmk, tml;
struct tm *lt;
time_t tk, tl, tl1;
char trailer;
/* Sanity check, plus call tzset. */
tl = 0;
if (! localtime (&tl))
{
printf ("localtime (0) fails\n");
status = 1;
}
if ((argc == 3 || argc == 4)
&& (sscanf (argv[1], "%d-%d-%d%c",
&tm.tm_year, &tm.tm_mon, &tm.tm_mday, &trailer)
== 3)
&& (sscanf (argv[2], "%d:%d:%d%c",
&tm.tm_hour, &tm.tm_min, &tm.tm_sec, &trailer)
== 3))
{
tm.tm_year -= TM_YEAR_BASE;
tm.tm_mon--;
tm.tm_isdst = argc == 3 ? -1 : atoi (argv[3]);
tmk = tm;
tl = mktime (&tmk);
lt = localtime_r (&tl, &tml);
printf ("mktime returns %ld == ", (long int) tl);
print_tm (&tmk);
printf ("\n");
status = check_result (tl, tmk, tl, lt);
}
else if (argc == 4 || (argc == 5 && strcmp (argv[4], "-") == 0))
{
time_t from = atol (argv[1]);
time_t by = atol (argv[2]);
time_t to = atol (argv[3]);
if (argc == 4)
for (tl = from; by < 0 ? to <= tl : tl <= to; tl = tl1)
{
lt = localtime_r (&tl, &tml);
if (lt)
{
tmk = tml;
tk = mktime (&tmk);
status |= check_result (tk, tmk, tl, &tml);
}
else
{
printf ("localtime_r (%ld) yields 0\n", (long int) tl);
status = 1;
}
tl1 = tl + by;
if ((tl1 < tl) != (by < 0))
break;
}
else
for (tl = from; by < 0 ? to <= tl : tl <= to; tl = tl1)
{
/* Null benchmark. */
lt = localtime_r (&tl, &tml);
if (lt)
{
tmk = tml;
tk = tl;
status |= check_result (tk, tmk, tl, &tml);
}
else
{
printf ("localtime_r (%ld) yields 0\n", (long int) tl);
status = 1;
}
tl1 = tl + by;
if ((tl1 < tl) != (by < 0))
break;
}
}
else
printf ("Usage:\
\t%s YYYY-MM-DD HH:MM:SS [ISDST] # Test given time.\n\
\t%s FROM BY TO # Test values FROM, FROM+BY, ..., TO.\n\
\t%s FROM BY TO - # Do not test those values (for benchmark).\n",
argv[0], argv[0], argv[0]);
return status;
}
#endif /* DEBUG_MKTIME */
/*
Local Variables:
compile-command: "gcc -DDEBUG_MKTIME -I. -Wall -W -O2 -g mktime.c -o mktime"
End:
*/