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-rw-r--r--time/unix/time.c352
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diff --git a/time/unix/time.c b/time/unix/time.c
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+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "apr_portable.h"
+#include "apr_time.h"
+#include "apr_lib.h"
+#include "apr_private.h"
+#include "apr_strings.h"
+
+/* private APR headers */
+#include "apr_arch_internal_time.h"
+
+/* System Headers required for time library */
+#if APR_HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+#if APR_HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#ifdef HAVE_TIME_H
+#include <time.h>
+#endif
+/* End System Headers */
+
+#if !defined(HAVE_STRUCT_TM_TM_GMTOFF) && !defined(HAVE_STRUCT_TM___TM_GMTOFF)
+static apr_int32_t server_gmt_offset;
+#define NO_GMTOFF_IN_STRUCT_TM
+#endif
+
+static apr_int32_t get_offset(struct tm *tm)
+{
+#if defined(HAVE_STRUCT_TM_TM_GMTOFF)
+ return tm->tm_gmtoff;
+#elif defined(HAVE_STRUCT_TM___TM_GMTOFF)
+ return tm->__tm_gmtoff;
+#else
+#ifdef NETWARE
+ /* Need to adjust the global variable each time otherwise
+ the web server would have to be restarted when daylight
+ savings changes.
+ */
+ if (daylightOnOff) {
+ return server_gmt_offset + daylightOffset;
+ }
+#else
+ if (tm->tm_isdst)
+ return server_gmt_offset + 3600;
+#endif
+ return server_gmt_offset;
+#endif
+}
+
+APR_DECLARE(apr_status_t) apr_time_ansi_put(apr_time_t *result,
+ time_t input)
+{
+ *result = (apr_time_t)input * APR_USEC_PER_SEC;
+ return APR_SUCCESS;
+}
+
+/* NB NB NB NB This returns GMT!!!!!!!!!! */
+APR_DECLARE(apr_time_t) apr_time_now(void)
+{
+ struct timeval tv;
+ gettimeofday(&tv, NULL);
+ return tv.tv_sec * (apr_time_t)APR_USEC_PER_SEC + (apr_time_t)tv.tv_usec;
+}
+
+static void explode_time(apr_time_exp_t *xt, apr_time_t t,
+ apr_int32_t offset, int use_localtime)
+{
+ struct tm tm;
+ time_t tt = (t / APR_USEC_PER_SEC) + offset;
+ xt->tm_usec = t % APR_USEC_PER_SEC;
+
+#if APR_HAS_THREADS && defined (_POSIX_THREAD_SAFE_FUNCTIONS)
+ if (use_localtime)
+ localtime_r(&tt, &tm);
+ else
+ gmtime_r(&tt, &tm);
+#else
+ if (use_localtime)
+ tm = *localtime(&tt);
+ else
+ tm = *gmtime(&tt);
+#endif
+
+ xt->tm_sec = tm.tm_sec;
+ xt->tm_min = tm.tm_min;
+ xt->tm_hour = tm.tm_hour;
+ xt->tm_mday = tm.tm_mday;
+ xt->tm_mon = tm.tm_mon;
+ xt->tm_year = tm.tm_year;
+ xt->tm_wday = tm.tm_wday;
+ xt->tm_yday = tm.tm_yday;
+ xt->tm_isdst = tm.tm_isdst;
+ xt->tm_gmtoff = get_offset(&tm);
+}
+
+APR_DECLARE(apr_status_t) apr_time_exp_tz(apr_time_exp_t *result,
+ apr_time_t input, apr_int32_t offs)
+{
+ explode_time(result, input, offs, 0);
+ result->tm_gmtoff = offs;
+ return APR_SUCCESS;
+}
+
+APR_DECLARE(apr_status_t) apr_time_exp_gmt(apr_time_exp_t *result,
+ apr_time_t input)
+{
+ return apr_time_exp_tz(result, input, 0);
+}
+
+APR_DECLARE(apr_status_t) apr_time_exp_lt(apr_time_exp_t *result,
+ apr_time_t input)
+{
+#if defined(__EMX__)
+ /* EMX gcc (OS/2) has a timezone global we can use */
+ return apr_time_exp_tz(result, input, -timezone);
+#else
+ explode_time(result, input, 0, 1);
+ return APR_SUCCESS;
+#endif /* __EMX__ */
+}
+
+APR_DECLARE(apr_status_t) apr_time_exp_get(apr_time_t *t, apr_time_exp_t *xt)
+{
+ apr_time_t year = xt->tm_year;
+ apr_time_t days;
+ static const int dayoffset[12] =
+ {306, 337, 0, 31, 61, 92, 122, 153, 184, 214, 245, 275};
+
+ if (xt->tm_mon < 0 || xt->tm_mon >= 12)
+ return APR_EBADDATE;
+
+ /* shift new year to 1st March in order to make leap year calc easy */
+
+ if (xt->tm_mon < 2)
+ year--;
+
+ /* Find number of days since 1st March 1900 (in the Gregorian calendar). */
+
+ days = year * 365 + year / 4 - year / 100 + (year / 100 + 3) / 4;
+ days += dayoffset[xt->tm_mon] + xt->tm_mday - 1;
+ days -= 25508; /* 1 jan 1970 is 25508 days since 1 mar 1900 */
+ days = ((days * 24 + xt->tm_hour) * 60 + xt->tm_min) * 60 + xt->tm_sec;
+
+ if (days < 0) {
+ return APR_EBADDATE;
+ }
+ *t = days * APR_USEC_PER_SEC + xt->tm_usec;
+ return APR_SUCCESS;
+}
+
+APR_DECLARE(apr_status_t) apr_time_exp_gmt_get(apr_time_t *t,
+ apr_time_exp_t *xt)
+{
+ apr_status_t status = apr_time_exp_get(t, xt);
+ if (status == APR_SUCCESS)
+ *t -= (apr_time_t) xt->tm_gmtoff * APR_USEC_PER_SEC;
+ return status;
+}
+
+APR_DECLARE(apr_status_t) apr_os_imp_time_get(apr_os_imp_time_t **ostime,
+ apr_time_t *aprtime)
+{
+ (*ostime)->tv_usec = *aprtime % APR_USEC_PER_SEC;
+ (*ostime)->tv_sec = *aprtime / APR_USEC_PER_SEC;
+ return APR_SUCCESS;
+}
+
+APR_DECLARE(apr_status_t) apr_os_exp_time_get(apr_os_exp_time_t **ostime,
+ apr_time_exp_t *aprtime)
+{
+ (*ostime)->tm_sec = aprtime->tm_sec;
+ (*ostime)->tm_min = aprtime->tm_min;
+ (*ostime)->tm_hour = aprtime->tm_hour;
+ (*ostime)->tm_mday = aprtime->tm_mday;
+ (*ostime)->tm_mon = aprtime->tm_mon;
+ (*ostime)->tm_year = aprtime->tm_year;
+ (*ostime)->tm_wday = aprtime->tm_wday;
+ (*ostime)->tm_yday = aprtime->tm_yday;
+ (*ostime)->tm_isdst = aprtime->tm_isdst;
+
+#if defined(HAVE_STRUCT_TM_TM_GMTOFF)
+ (*ostime)->tm_gmtoff = aprtime->tm_gmtoff;
+#elif defined(HAVE_STRUCT_TM___TM_GMTOFF)
+ (*ostime)->__tm_gmtoff = aprtime->tm_gmtoff;
+#endif
+
+ return APR_SUCCESS;
+}
+
+APR_DECLARE(apr_status_t) apr_os_imp_time_put(apr_time_t *aprtime,
+ apr_os_imp_time_t **ostime,
+ apr_pool_t *cont)
+{
+ *aprtime = (*ostime)->tv_sec * APR_USEC_PER_SEC + (*ostime)->tv_usec;
+ return APR_SUCCESS;
+}
+
+APR_DECLARE(apr_status_t) apr_os_exp_time_put(apr_time_exp_t *aprtime,
+ apr_os_exp_time_t **ostime,
+ apr_pool_t *cont)
+{
+ aprtime->tm_sec = (*ostime)->tm_sec;
+ aprtime->tm_min = (*ostime)->tm_min;
+ aprtime->tm_hour = (*ostime)->tm_hour;
+ aprtime->tm_mday = (*ostime)->tm_mday;
+ aprtime->tm_mon = (*ostime)->tm_mon;
+ aprtime->tm_year = (*ostime)->tm_year;
+ aprtime->tm_wday = (*ostime)->tm_wday;
+ aprtime->tm_yday = (*ostime)->tm_yday;
+ aprtime->tm_isdst = (*ostime)->tm_isdst;
+
+#if defined(HAVE_STRUCT_TM_TM_GMTOFF)
+ aprtime->tm_gmtoff = (*ostime)->tm_gmtoff;
+#elif defined(HAVE_STRUCT_TM___TM_GMTOFF)
+ aprtime->tm_gmtoff = (*ostime)->__tm_gmtoff;
+#endif
+
+ return APR_SUCCESS;
+}
+
+APR_DECLARE(void) apr_sleep(apr_interval_time_t t)
+{
+#ifdef OS2
+ DosSleep(t/1000);
+#elif defined(BEOS)
+ snooze(t);
+#elif defined(NETWARE)
+ delay(t/1000);
+#else
+ struct timeval tv;
+ tv.tv_usec = t % APR_USEC_PER_SEC;
+ tv.tv_sec = t / APR_USEC_PER_SEC;
+ select(0, NULL, NULL, NULL, &tv);
+#endif
+}
+
+#ifdef OS2
+APR_DECLARE(apr_status_t) apr_os2_time_to_apr_time(apr_time_t *result,
+ FDATE os2date,
+ FTIME os2time)
+{
+ struct tm tmpdate;
+
+ memset(&tmpdate, 0, sizeof(tmpdate));
+ tmpdate.tm_hour = os2time.hours;
+ tmpdate.tm_min = os2time.minutes;
+ tmpdate.tm_sec = os2time.twosecs * 2;
+
+ tmpdate.tm_mday = os2date.day;
+ tmpdate.tm_mon = os2date.month - 1;
+ tmpdate.tm_year = os2date.year + 80;
+ tmpdate.tm_isdst = -1;
+
+ *result = mktime(&tmpdate) * APR_USEC_PER_SEC;
+ return APR_SUCCESS;
+}
+
+APR_DECLARE(apr_status_t) apr_apr_time_to_os2_time(FDATE *os2date,
+ FTIME *os2time,
+ apr_time_t aprtime)
+{
+ time_t ansitime = aprtime / APR_USEC_PER_SEC;
+ struct tm *lt;
+ lt = localtime(&ansitime);
+ os2time->hours = lt->tm_hour;
+ os2time->minutes = lt->tm_min;
+ os2time->twosecs = lt->tm_sec / 2;
+
+ os2date->day = lt->tm_mday;
+ os2date->month = lt->tm_mon + 1;
+ os2date->year = lt->tm_year - 80;
+ return APR_SUCCESS;
+}
+#endif
+
+#ifdef NETWARE
+APR_DECLARE(void) apr_netware_setup_time(void)
+{
+ tzset();
+ server_gmt_offset = -TZONE;
+}
+#else
+APR_DECLARE(void) apr_unix_setup_time(void)
+{
+#ifdef NO_GMTOFF_IN_STRUCT_TM
+ /* Precompute the offset from GMT on systems where it's not
+ in struct tm.
+
+ Note: This offset is normalized to be independent of daylight
+ savings time; if the calculation happens to be done in a
+ time/place where a daylight savings adjustment is in effect,
+ the returned offset has the same value that it would have
+ in the same location if daylight savings were not in effect.
+ The reason for this is that the returned offset can be
+ applied to a past or future timestamp in explode_time(),
+ so the DST adjustment obtained from the current time won't
+ necessarily be applicable.
+
+ mktime() is the inverse of localtime(); so, presumably,
+ passing in a struct tm made by gmtime() let's us calculate
+ the true GMT offset. However, there's a catch: if daylight
+ savings is in effect, gmtime()will set the tm_isdst field
+ and confuse mktime() into returning a time that's offset
+ by one hour. In that case, we must adjust the calculated GMT
+ offset.
+
+ */
+
+ struct timeval now;
+ time_t t1, t2;
+ struct tm t;
+
+ gettimeofday(&now, NULL);
+ t1 = now.tv_sec;
+ t2 = 0;
+
+#if APR_HAS_THREADS && defined(_POSIX_THREAD_SAFE_FUNCTIONS)
+ gmtime_r(&t1, &t);
+#else
+ t = *gmtime(&t1);
+#endif
+ t.tm_isdst = 0; /* we know this GMT time isn't daylight-savings */
+ t2 = mktime(&t);
+ server_gmt_offset = (apr_int32_t) difftime(t1, t2);
+#endif /* NO_GMTOFF_IN_STRUCT_TM */
+}
+
+#endif
+
+/* A noop on all known Unix implementations */
+APR_DECLARE(void) apr_time_clock_hires(apr_pool_t *p)
+{
+ return;
+}
+
+
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