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authorUlrich Drepper <drepper@redhat.com>1998-05-14 19:14:48 +0000
committerUlrich Drepper <drepper@redhat.com>1998-05-14 19:14:48 +0000
commitff152e3fc8c7d38e08d9f9d70eb6109c878e1372 (patch)
tree7fc3fb83b20673816f3f2082ac79558028f02b25 /time
parent847a35a07b6412a24f8978cf2a7fafc4e5c4a471 (diff)
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Update.
1998-05-14 13:25 Ulrich Drepper <drepper@cygnus.com> * inet/netinet/in.h: Add defines for multicast. Reported by Jeremy Hall <jhall@UU.NET>. * stdlib/stdlib.h: Add prototypes for __setenv and __unsetenv. * sysdeps/generic/putenv.c: Use __setenv and __unsetenv, not setenv and unsetenv. Optimize _LIBC case. * sysdeps/generic/setenv.c: Prevent unnecessary memory leaks. Define functions with leading __. * time/tzfile.c: Correct handling of global variables daylight, timezone, and tzname. * time/tzset.c: Likewise. * timezone/Makefile (tests): Add tst-timezone. * timezone/tst-timezone.c: New file. 1998-05-14 10:35 Ulrich Drepper <drepper@cygnus.com> * timezone/asia: Update from tzdata1998d. * timezone/australasia: Likewise. * timezone/europe: Likewise.
Diffstat (limited to 'time')
-rw-r--r--time/tzfile.c51
-rw-r--r--time/tzset.c12
2 files changed, 35 insertions, 28 deletions
diff --git a/time/tzfile.c b/time/tzfile.c
index 7dcf88d..c9becf3 100644
--- a/time/tzfile.c
+++ b/time/tzfile.c
@@ -54,6 +54,8 @@ static unsigned char *type_idxs = NULL;
static size_t num_types;
static struct ttinfo *types = NULL;
static char *zone_names = NULL;
+static long int rule_stdoff;
+static long int rule_dstoff;
static size_t num_leaps;
static struct leap *leaps = NULL;
@@ -266,15 +268,32 @@ __tzfile_read (const char *file)
fclose (f);
- info = find_transition (0);
+ /* Find the standard and daylight time offsets used by the rule file.
+ We choose the offsets in the types of each flavor that are
+ transitioned to earliest in time. */
+ __tzname[1] = NULL;
for (i = 0; i < num_types && i < sizeof (__tzname) / sizeof (__tzname[0]);
++i)
__tzname[types[i].isdst] = __tzstring (&zone_names[types[i].idx]);
- if (info->isdst < sizeof (__tzname) / sizeof (__tzname[0]))
- __tzname[info->isdst] = __tzstring (&zone_names[info->idx]);
+ if (__tzname[1] == NULL)
+ __tzname[1] = __tzname[0];
compute_tzname_max (chars);
+ rule_stdoff = rule_dstoff = 0;
+ for (i = 0; i < num_transitions; ++i)
+ {
+ if (!rule_stdoff && !types[type_idxs[i]].isdst)
+ rule_stdoff = types[type_idxs[i]].offset;
+ if (!rule_dstoff && types[type_idxs[i]].isdst)
+ rule_dstoff = types[type_idxs[i]].offset;
+ if (rule_stdoff && rule_dstoff)
+ break;
+ }
+
+ __daylight = rule_stdoff != rule_dstoff;
+ __timezone = -rule_stdoff;
+
__use_tzfile = 1;
return;
@@ -291,7 +310,6 @@ __tzfile_default (const char *std, const char *dst,
long int stdoff, long int dstoff)
{
size_t stdlen, dstlen, i;
- long int rule_offset, rule_stdoff, rule_dstoff;
int isdst;
__tzfile_read (TZDEFRULES);
@@ -318,24 +336,9 @@ __tzfile_default (const char *std, const char *dst,
}
__mempcpy (__mempcpy (zone_names, std, stdlen), dst, dstlen);
- /* Find the standard and daylight time offsets used by the rule file.
- We choose the offsets in the types of each flavor that are
- transitioned to earliest in time. */
- rule_stdoff = rule_dstoff = 0;
- for (i = 0; i < num_transitions; ++i)
- {
- if (!rule_stdoff && !types[type_idxs[i]].isdst)
- rule_stdoff = types[type_idxs[i]].offset;
- if (!rule_dstoff && types[type_idxs[i]].isdst)
- rule_dstoff = types[type_idxs[i]].offset;
- if (rule_stdoff && rule_dstoff)
- break;
- }
-
/* Now correct the transition times for the user-specified standard and
daylight offsets from GMT. */
isdst = 0;
- rule_offset = rule_offset;
for (i = 0; i < num_transitions; ++i)
{
struct ttinfo *trans_type = &types[type_idxs[i]];
@@ -419,14 +422,16 @@ __tzfile_compute (time_t timer, int use_localtime,
if (use_localtime)
{
struct ttinfo *info = find_transition (timer);
- __daylight = info->isdst;
- __timezone = -info->offset;
+ __daylight = rule_stdoff != rule_dstoff;
+ __timezone = -rule_stdoff;
+ __tzname[1] = NULL;
for (i = 0;
i < num_types && i < sizeof (__tzname) / sizeof (__tzname[0]);
++i)
__tzname[types[i].isdst] = &zone_names[types[i].idx];
- if (info->isdst < sizeof (__tzname) / sizeof (__tzname[0]))
- __tzname[info->isdst] = &zone_names[info->idx];
+ if (__tzname[1] == NULL)
+ /* There is no daylight saving time. */
+ __tzname[1] = __tzname[0];
}
*leap_correct = 0L;
diff --git a/time/tzset.c b/time/tzset.c
index e766796..e42be39 100644
--- a/time/tzset.c
+++ b/time/tzset.c
@@ -333,6 +333,7 @@ tzset_internal (always)
{
/* There is no DST. */
tz_rules[1].name = tz_rules[0].name;
+ tz_rules[1].offset = tz_rules[0].offset;
free (tzbuf);
return;
}
@@ -547,8 +548,8 @@ tz_compute (timer, tm)
! compute_change (&tz_rules[1], 1900 + tm->tm_year))
return 0;
- __daylight = timer >= tz_rules[0].change && timer < tz_rules[1].change;
- __timezone = -tz_rules[__daylight].offset;
+ __daylight = tz_rules[0].offset != tz_rules[1].offset;
+ __timezone = -tz_rules[0].offset;
__tzname[0] = (char *) tz_rules[0].name;
__tzname[1] = (char *) tz_rules[1].name;
@@ -626,9 +627,10 @@ __tz_convert (const time_t *timer, int use_localtime, struct tm *tp)
{
if (use_localtime)
{
- tp->tm_isdst = __daylight;
- tp->tm_zone = __tzname[__daylight];
- tp->tm_gmtoff = -__timezone;
+ tp->tm_isdst = (*timer >= tz_rules[0].change
+ && *timer < tz_rules[1].change);
+ tp->tm_zone = __tzname[tp->tm_isdst];
+ tp->tm_gmtoff = tz_rules[tp->tm_isdst].offset;
}
else
{