/* Copyright 2000-2004 The Apache Software Foundation * * Licensed 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 #endif #if APR_HAVE_UNISTD_H #include #endif #ifdef HAVE_TIME_H #include #endif /* End System Headers */ #if !defined(HAVE_GMTOFF) && !defined(HAVE___OFFSET) static apr_int32_t server_gmt_offset; #endif /* if !defined(HAVE_GMTOFF) && !defined(HAVE___OFFSET) */ static apr_int32_t get_offset(struct tm *tm) 11 { #ifdef HAVE_GMTOFF 11 return tm->tm_gmtoff; #elif defined(HAVE___OFFSET) 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) 108 { 108 *result = (apr_time_t)input * APR_USEC_PER_SEC; 108 return APR_SUCCESS; } /* NB NB NB NB This returns GMT!!!!!!!!!! */ APR_DECLARE(apr_time_t) apr_time_now(void) 540 { 540 struct timeval tv; 540 gettimeofday(&tv, NULL); 540 return tv.tv_sec * APR_USEC_PER_SEC + tv.tv_usec; } static void explode_time(apr_time_exp_t *xt, apr_time_t t, apr_int32_t offset, int use_localtime) 11 { 11 struct tm tm; 11 time_t tt = (t / APR_USEC_PER_SEC) + offset; 11 xt->tm_usec = t % APR_USEC_PER_SEC; #if APR_HAS_THREADS && defined (_POSIX_THREAD_SAFE_FUNCTIONS) 11 if (use_localtime) 3 localtime_r(&tt, &tm); else 8 gmtime_r(&tt, &tm); #else if (use_localtime) tm = *localtime(&tt); else tm = *gmtime(&tt); #endif 11 xt->tm_sec = tm.tm_sec; 11 xt->tm_min = tm.tm_min; 11 xt->tm_hour = tm.tm_hour; 11 xt->tm_mday = tm.tm_mday; 11 xt->tm_mon = tm.tm_mon; 11 xt->tm_year = tm.tm_year; 11 xt->tm_wday = tm.tm_wday; 11 xt->tm_yday = tm.tm_yday; 11 xt->tm_isdst = tm.tm_isdst; 11 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) 8 { 8 explode_time(result, input, offs, 0); 8 result->tm_gmtoff = offs; 8 return APR_SUCCESS; } APR_DECLARE(apr_status_t) apr_time_exp_gmt(apr_time_exp_t *result, apr_time_t input) 6 { 6 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) 3 { #if defined(__EMX__) /* EMX gcc (OS/2) has a timezone global we can use */ return apr_time_exp_tz(result, input, -timezone); #else 3 explode_time(result, input, 0, 1); 3 return APR_SUCCESS; #endif /* __EMX__ */ } APR_DECLARE(apr_status_t) apr_time_exp_get(apr_time_t *t, apr_time_exp_t *xt) 3 { 3 int year; 3 time_t days; static const int dayoffset[12] = 3 {306, 337, 0, 31, 61, 92, 122, 153, 184, 214, 245, 275}; 3 year = xt->tm_year; 3 if (year < 70 || ((sizeof(time_t) <= 4) && (year >= 138))) { ###### return APR_EBADDATE; } /* shift new year to 1st March in order to make leap year calc easy */ 3 if (xt->tm_mon < 2) ###### year--; /* Find number of days since 1st March 1900 (in the Gregorian calendar). */ 3 days = year * 365 + year / 4 - year / 100 + (year / 100 + 3) / 4; 3 days += dayoffset[xt->tm_mon] + xt->tm_mday - 1; 3 days -= 25508; /* 1 jan 1970 is 25508 days since 1 mar 1900 */ 3 days = ((days * 24 + xt->tm_hour) * 60 + xt->tm_min) * 60 + xt->tm_sec; 3 if (days < 0) { ###### return APR_EBADDATE; } 3 *t = days * APR_USEC_PER_SEC + xt->tm_usec; 3 return APR_SUCCESS; } APR_DECLARE(apr_status_t) apr_time_exp_gmt_get(apr_time_t *t, apr_time_exp_t *xt) 1 { 1 apr_status_t status = apr_time_exp_get(t, xt); 1 if (status == APR_SUCCESS) 1 *t -= (apr_time_t) xt->tm_gmtoff * APR_USEC_PER_SEC; 1 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 HAVE_GMTOFF ###### (*ostime)->tm_gmtoff = aprtime->tm_gmtoff; #elif defined(HAVE__OFFSET) (*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 HAVE_GMTOFF ###### aprtime->tm_gmtoff = (*ostime)->tm_gmtoff; #elif defined(HAVE__OFFSET) aprtime->tm_gmtoff = (*ostime)->__tm_gmtoff; #endif ###### return APR_SUCCESS; } APR_DECLARE(void) apr_sleep(apr_interval_time_t t) 1855 { #ifdef OS2 DosSleep(t/1000); #elif defined(BEOS) snooze(t); #elif defined(NETWARE) delay(t/1000); #else 1855 struct timeval tv; 1855 tv.tv_usec = t % APR_USEC_PER_SEC; 1855 tv.tv_sec = t / APR_USEC_PER_SEC; 1855 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; } #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) 13 { #if !defined(HAVE_GMTOFF) && !defined(HAVE___OFFSET) /* 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 } #endif /* A noop on all known Unix implementations */ APR_DECLARE(void) apr_time_clock_hires(apr_pool_t *p) ###### { ###### return; }