/*
Unix SMB/CIFS implementation.
time handling functions
- Copyright (C) Andrew Tridgell 1992-1998
+
+ Copyright (C) Andrew Tridgell 1992-2004
Copyright (C) Stefan (metze) Metzmacher 2002
+ Copyright (C) Jeremy Allison 2007
+
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
-/*
- This stuff was largely rewritten by Paul Eggert <eggert@twinsun.com>
- in May 1996
- */
+/**
+ * @file
+ * @brief time handling functions
+ */
-int extra_time_offset = 0;
+#define NTTIME_INFINITY (NTTIME)0x8000000000000000LL
-#ifndef CHAR_BIT
-#define CHAR_BIT 8
+#if (SIZEOF_LONG == 8)
+#define TIME_FIXUP_CONSTANT_INT 11644473600L
+#elif (SIZEOF_LONG_LONG == 8)
+#define TIME_FIXUP_CONSTANT_INT 11644473600LL
#endif
-#ifndef TIME_T_MIN
-#define TIME_T_MIN ((time_t)0 < (time_t) -1 ? (time_t) 0 \
- : ~ (time_t) 0 << (sizeof (time_t) * CHAR_BIT - 1))
+
+/**
+ parse a nttime as a large integer in a string and return a NTTIME
+*/
+NTTIME nttime_from_string(const char *s)
+{
+ return strtoull(s, NULL, 0);
+}
+
+/**************************************************************
+ Handle conversions between time_t and uint32, taking care to
+ preserve the "special" values.
+**************************************************************/
+
+uint32_t convert_time_t_to_uint32(time_t t)
+{
+#if (defined(SIZEOF_TIME_T) && (SIZEOF_TIME_T == 8))
+ /* time_t is 64-bit. */
+ if (t == 0x8000000000000000LL) {
+ return 0x80000000;
+ } else if (t == 0x7FFFFFFFFFFFFFFFLL) {
+ return 0x7FFFFFFF;
+ }
#endif
-#ifndef TIME_T_MAX
-#define TIME_T_MAX (~ (time_t) 0 - TIME_T_MIN)
+ return (uint32_t)t;
+}
+
+time_t convert_uint32_to_time_t(uint32_t u)
+{
+#if (defined(SIZEOF_TIME_T) && (SIZEOF_TIME_T == 8))
+ /* time_t is 64-bit. */
+ if (u == 0x80000000) {
+ return (time_t)0x8000000000000000LL;
+ } else if (u == 0x7FFFFFFF) {
+ return (time_t)0x7FFFFFFFFFFFFFFFLL;
+ }
#endif
+ return (time_t)u;
+}
+
+/****************************************************************************
+ Check if NTTIME is 0.
+****************************************************************************/
-void get_nttime_max(NTTIME *t)
+bool nt_time_is_zero(const NTTIME *nt)
{
- /* FIXME: This is incorrect */
- unix_to_nt_time(t, get_time_t_max());
+ return (*nt == 0);
+}
+
+/****************************************************************************
+ Convert ASN.1 GeneralizedTime string to unix-time.
+ Returns 0 on failure; Currently ignores timezone.
+****************************************************************************/
+
+time_t generalized_to_unix_time(const char *str)
+{
+ struct tm tm;
+
+ ZERO_STRUCT(tm);
+
+ if (sscanf(str, "%4d%2d%2d%2d%2d%2d",
+ &tm.tm_year, &tm.tm_mon, &tm.tm_mday,
+ &tm.tm_hour, &tm.tm_min, &tm.tm_sec) != 6) {
+ return 0;
+ }
+ tm.tm_year -= 1900;
+ tm.tm_mon -= 1;
+
+ return timegm(&tm);
}
/*******************************************************************
- External access to time_t_min and time_t_max.
-********************************************************************/
+ Accessor function for the server time zone offset.
+ set_server_zone_offset() must have been called first.
+******************************************************************/
+
+static int server_zone_offset;
-time_t get_time_t_max(void)
+int get_server_zone_offset(void)
{
- return TIME_T_MAX;
+ return server_zone_offset;
}
/*******************************************************************
-a gettimeofday wrapper
-********************************************************************/
-void GetTimeOfDay(struct timeval *tval)
+ Initialize the server time zone offset. Called when a client connects.
+******************************************************************/
+
+int set_server_zone_offset(time_t t)
{
-#ifdef HAVE_GETTIMEOFDAY_TZ
- gettimeofday(tval,NULL);
-#else
- gettimeofday(tval);
-#endif
+ server_zone_offset = get_time_zone(t);
+ return server_zone_offset;
}
-#define TM_YEAR_BASE 1900
+/****************************************************************************
+ Return the date and time as a string
+****************************************************************************/
-/*******************************************************************
-yield the difference between *A and *B, in seconds, ignoring leap seconds
-********************************************************************/
-static int tm_diff(struct tm *a, struct tm *b)
+char *timeval_string(TALLOC_CTX *ctx, const struct timeval *tp, bool hires)
{
- int ay = a->tm_year + (TM_YEAR_BASE - 1);
- int by = b->tm_year + (TM_YEAR_BASE - 1);
- int intervening_leap_days =
- (ay/4 - by/4) - (ay/100 - by/100) + (ay/400 - by/400);
- int years = ay - by;
- int days = 365*years + intervening_leap_days + (a->tm_yday - b->tm_yday);
- int hours = 24*days + (a->tm_hour - b->tm_hour);
- int minutes = 60*hours + (a->tm_min - b->tm_min);
- int seconds = 60*minutes + (a->tm_sec - b->tm_sec);
+ fstring TimeBuf;
+ time_t t;
+ struct tm *tm;
- return seconds;
+ t = (time_t)tp->tv_sec;
+ tm = localtime(&t);
+ if (!tm) {
+ if (hires) {
+ slprintf(TimeBuf,
+ sizeof(TimeBuf)-1,
+ "%ld.%06ld seconds since the Epoch",
+ (long)tp->tv_sec,
+ (long)tp->tv_usec);
+ } else {
+ slprintf(TimeBuf,
+ sizeof(TimeBuf)-1,
+ "%ld seconds since the Epoch",
+ (long)t);
+ }
+ } else {
+#ifdef HAVE_STRFTIME
+ if (hires) {
+ strftime(TimeBuf,sizeof(TimeBuf)-1,"%Y/%m/%d %H:%M:%S",tm);
+ slprintf(TimeBuf+strlen(TimeBuf),
+ sizeof(TimeBuf)-1 - strlen(TimeBuf),
+ ".%06ld",
+ (long)tp->tv_usec);
+ } else {
+ strftime(TimeBuf,sizeof(TimeBuf)-1,"%Y/%m/%d %H:%M:%S",tm);
+ }
+#else
+ if (hires) {
+ const char *asct = asctime(tm);
+ slprintf(TimeBuf,
+ sizeof(TimeBuf)-1,
+ "%s.%06ld",
+ asct ? asct : "unknown",
+ (long)tp->tv_usec);
+ } else {
+ const char *asct = asctime(tm);
+ fstrcpy(TimeBuf, asct ? asct : "unknown");
+ }
+#endif
+ }
+ return talloc_strdup(ctx, TimeBuf);
}
-/*******************************************************************
- return the UTC offset in seconds west of UTC, or 0 if it cannot be determined
- ******************************************************************/
-static int TimeZone(time_t t)
+char *current_timestring(TALLOC_CTX *ctx, bool hires)
{
- struct tm *tm = gmtime(&t);
- struct tm tm_utc;
- if (!tm)
- return 0;
- tm_utc = *tm;
- tm = localtime(&t);
- if (!tm)
- return 0;
- return tm_diff(&tm_utc,tm);
+ struct timeval tv;
+ GetTimeOfDay(&tv);
+ return timeval_string(ctx, &tv, hires);
}
-static BOOL done_serverzone_init;
-/* Return the smb serverzone value */
-static int get_serverzone(void)
-{
- static int serverzone;
+/***************************************************************************
+ Server versions of the above functions.
+***************************************************************************/
- if (!done_serverzone_init) {
- serverzone = TimeZone(time(NULL));
+void srv_put_dos_date(char *buf,int offset,time_t unixdate)
+{
+ push_dos_date((uint8_t *)buf, offset, unixdate, server_zone_offset);
+}
- if ((serverzone % 60) != 0) {
- DEBUG(1,("WARNING: Your timezone is not a multiple of 1 minute.\n"));
- }
+void srv_put_dos_date2(char *buf,int offset, time_t unixdate)
+{
+ push_dos_date2((uint8_t *)buf, offset, unixdate, server_zone_offset);
+}
- DEBUG(4,("Serverzone is %d\n",serverzone));
+void srv_put_dos_date3(char *buf,int offset,time_t unixdate)
+{
+ push_dos_date3((uint8_t *)buf, offset, unixdate, server_zone_offset);
+}
- done_serverzone_init = True;
+void round_timespec(enum timestamp_set_resolution res, struct timespec *ts)
+{
+ switch (res) {
+ case TIMESTAMP_SET_SECONDS:
+ round_timespec_to_sec(ts);
+ break;
+ case TIMESTAMP_SET_MSEC:
+ round_timespec_to_usec(ts);
+ break;
+ case TIMESTAMP_SET_NT_OR_BETTER:
+ /* No rounding needed. */
+ break;
}
+}
+
+/****************************************************************************
+ Take a Unix time and convert to an NTTIME structure and place in buffer
+ pointed to by p, rounded to the correct resolution.
+****************************************************************************/
- return serverzone;
+void put_long_date_timespec(enum timestamp_set_resolution res, char *p, struct timespec ts)
+{
+ NTTIME nt;
+ round_timespec(res, &ts);
+ unix_timespec_to_nt_time(&nt, ts);
+ SIVAL(p, 0, nt & 0xFFFFFFFF);
+ SIVAL(p, 4, nt >> 32);
}
-/* Re-read the smb serverzone value */
+void put_long_date(char *p, time_t t)
+{
+ struct timespec ts;
+ ts.tv_sec = t;
+ ts.tv_nsec = 0;
+ put_long_date_timespec(TIMESTAMP_SET_SECONDS, p, ts);
+}
-static struct timeval start_time_hires;
+void dos_filetime_timespec(struct timespec *tsp)
+{
+ tsp->tv_sec &= ~1;
+ tsp->tv_nsec = 0;
+}
-void TimeInit(void)
+/*******************************************************************
+ Create a unix date (int GMT) from a dos date (which is actually in
+ localtime).
+********************************************************************/
+
+static time_t make_unix_date(const void *date_ptr, int zone_offset)
{
- done_serverzone_init = False;
- get_serverzone();
- /* Save the start time of this process. */
- if (start_time_hires.tv_sec == 0 && start_time_hires.tv_usec == 0)
- GetTimeOfDay(&start_time_hires);
+ uint32_t dos_date=0;
+ struct tm t;
+ time_t ret;
+
+ dos_date = IVAL(date_ptr,0);
+
+ if (dos_date == 0) {
+ return 0;
+ }
+
+ interpret_dos_date(dos_date,&t.tm_year,&t.tm_mon,
+ &t.tm_mday,&t.tm_hour,&t.tm_min,&t.tm_sec);
+ t.tm_isdst = -1;
+
+ ret = timegm(&t);
+
+ ret += zone_offset;
+
+ return(ret);
}
-/**********************************************************************
- Return a timeval struct of the uptime of this process. As TimeInit is
- done before a daemon fork then this is the start time from the parent
- daemon start. JRA.
-***********************************************************************/
+/*******************************************************************
+ Like make_unix_date() but the words are reversed.
+********************************************************************/
-void get_process_uptime(struct timeval *ret_time)
+time_t make_unix_date2(const void *date_ptr, int zone_offset)
{
- struct timeval time_now_hires;
+ uint32_t x,x2;
- GetTimeOfDay(&time_now_hires);
- ret_time->tv_sec = time_now_hires.tv_sec - start_time_hires.tv_sec;
- ret_time->tv_usec = time_now_hires.tv_usec - start_time_hires.tv_usec;
- if (time_now_hires.tv_usec < start_time_hires.tv_usec) {
- ret_time->tv_sec -= 1;
- ret_time->tv_usec = 1000000 + (time_now_hires.tv_usec - start_time_hires.tv_usec);
- } else
- ret_time->tv_usec = time_now_hires.tv_usec - start_time_hires.tv_usec;
+ x = IVAL(date_ptr,0);
+ x2 = ((x&0xFFFF)<<16) | ((x&0xFFFF0000)>>16);
+ SIVAL(&x,0,x2);
+
+ return(make_unix_date((const void *)&x, zone_offset));
}
/*******************************************************************
-return the same value as TimeZone, but it should be more efficient.
+ Create a unix GMT date from a dos date in 32 bit "unix like" format
+ these generally arrive as localtimes, with corresponding DST.
+******************************************************************/
-We keep a table of DST offsets to prevent calling localtime() on each
-call of this function. This saves a LOT of time on many unixes.
+time_t make_unix_date3(const void *date_ptr, int zone_offset)
+{
+ time_t t = (time_t)IVAL(date_ptr,0);
+ if (!null_time(t)) {
+ t += zone_offset;
+ }
+ return(t);
+}
-Updated by Paul Eggert <eggert@twinsun.com>
-********************************************************************/
-static int TimeZoneFaster(time_t t)
-{
- static struct dst_table {time_t start,end; int zone;} *tdt, *dst_table = NULL;
- static int table_size = 0;
- int i;
- int zone = 0;
-
- if (t == 0) t = time(NULL);
-
- /* Tunis has a 8 day DST region, we need to be careful ... */
-#define MAX_DST_WIDTH (365*24*60*60)
-#define MAX_DST_SKIP (7*24*60*60)
-
- for (i=0;i<table_size;i++)
- if (t >= dst_table[i].start && t <= dst_table[i].end) break;
-
- if (i<table_size) {
- zone = dst_table[i].zone;
- } else {
- time_t low,high;
-
- zone = TimeZone(t);
- tdt = (struct dst_table *)Realloc(dst_table,
- sizeof(dst_table[0])*(i+1));
- if (!tdt) {
- DEBUG(0,("TimeZoneFaster: out of memory!\n"));
- SAFE_FREE(dst_table);
- table_size = 0;
- } else {
- dst_table = tdt;
- table_size++;
-
- dst_table[i].zone = zone;
- dst_table[i].start = dst_table[i].end = t;
-
- /* no entry will cover more than 6 months */
- low = t - MAX_DST_WIDTH/2;
- if (t < low)
- low = TIME_T_MIN;
-
- high = t + MAX_DST_WIDTH/2;
- if (high < t)
- high = TIME_T_MAX;
-
- /* widen the new entry using two bisection searches */
- while (low+60*60 < dst_table[i].start) {
- if (dst_table[i].start - low > MAX_DST_SKIP*2)
- t = dst_table[i].start - MAX_DST_SKIP;
- else
- t = low + (dst_table[i].start-low)/2;
- if (TimeZone(t) == zone)
- dst_table[i].start = t;
- else
- low = t;
- }
-
- while (high-60*60 > dst_table[i].end) {
- if (high - dst_table[i].end > MAX_DST_SKIP*2)
- t = dst_table[i].end + MAX_DST_SKIP;
- else
- t = high - (high-dst_table[i].end)/2;
- if (TimeZone(t) == zone)
- dst_table[i].end = t;
- else
- high = t;
- }
-#if 0
- DEBUG(1,("Added DST entry from %s ",
- asctime(localtime(&dst_table[i].start))));
- DEBUG(1,("to %s (%d)\n",asctime(localtime(&dst_table[i].end)),
- dst_table[i].zone));
-#endif
- }
- }
- return zone;
+time_t srv_make_unix_date(const void *date_ptr)
+{
+ return make_unix_date(date_ptr, server_zone_offset);
}
-/****************************************************************************
- return the UTC offset in seconds west of UTC, adjusted for extra time offset
- **************************************************************************/
-int TimeDiff(time_t t)
+time_t srv_make_unix_date2(const void *date_ptr)
{
- return TimeZoneFaster(t) + 60*extra_time_offset;
+ return make_unix_date2(date_ptr, server_zone_offset);
}
+time_t srv_make_unix_date3(const void *date_ptr)
+{
+ return make_unix_date3(date_ptr, server_zone_offset);
+}
/****************************************************************************
- return the UTC offset in seconds west of UTC, adjusted for extra time
- offset, for a local time value. If ut = lt + LocTimeDiff(lt), then
- lt = ut - TimeDiff(ut), but the converse does not necessarily hold near
- daylight savings transitions because some local times are ambiguous.
- LocTimeDiff(t) equals TimeDiff(t) except near daylight savings transitions.
- +**************************************************************************/
-static int LocTimeDiff(time_t lte)
+ Convert a normalized timeval to a timespec.
+****************************************************************************/
+
+struct timespec convert_timeval_to_timespec(const struct timeval tv)
{
- time_t lt = lte - 60*extra_time_offset;
- int d = TimeZoneFaster(lt);
- time_t t = lt + d;
+ struct timespec ts;
+ ts.tv_sec = tv.tv_sec;
+ ts.tv_nsec = tv.tv_usec * 1000;
+ return ts;
+}
- /* if overflow occurred, ignore all the adjustments so far */
- if (((lte < lt) ^ (extra_time_offset < 0)) | ((t < lt) ^ (d < 0)))
- t = lte;
+/****************************************************************************
+ Convert a normalized timespec to a timeval.
+****************************************************************************/
- /* now t should be close enough to the true UTC to yield the right answer */
- return TimeDiff(t);
+struct timeval convert_timespec_to_timeval(const struct timespec ts)
+{
+ struct timeval tv;
+ tv.tv_sec = ts.tv_sec;
+ tv.tv_usec = ts.tv_nsec / 1000;
+ return tv;
}
+/****************************************************************************
+ Return a timespec for the current time
+****************************************************************************/
+
+struct timespec timespec_current(void)
+{
+ struct timeval tv;
+ struct timespec ts;
+ GetTimeOfDay(&tv);
+ ts.tv_sec = tv.tv_sec;
+ ts.tv_nsec = tv.tv_usec * 1000;
+ return ts;
+}
/****************************************************************************
-try to optimise the localtime call, it can be quite expensive on some machines
+ Return the lesser of two timespecs.
****************************************************************************/
-struct tm *LocalTime(time_t *t)
+
+struct timespec timespec_min(const struct timespec *ts1,
+ const struct timespec *ts2)
{
- time_t t2 = *t;
+ if (ts1->tv_sec < ts2->tv_sec) return *ts1;
+ if (ts1->tv_sec > ts2->tv_sec) return *ts2;
+ if (ts1->tv_nsec < ts2->tv_nsec) return *ts1;
+ return *ts2;
+}
- t2 -= TimeDiff(t2);
+/****************************************************************************
+ compare two timespec structures.
+ Return -1 if ts1 < ts2
+ Return 0 if ts1 == ts2
+ Return 1 if ts1 > ts2
+****************************************************************************/
- return(gmtime(&t2));
+int timespec_compare(const struct timespec *ts1, const struct timespec *ts2)
+{
+ if (ts1->tv_sec > ts2->tv_sec) return 1;
+ if (ts1->tv_sec < ts2->tv_sec) return -1;
+ if (ts1->tv_nsec > ts2->tv_nsec) return 1;
+ if (ts1->tv_nsec < ts2->tv_nsec) return -1;
+ return 0;
}
-#define TIME_FIXUP_CONSTANT (369.0*365.25*24*60*60-(3.0*24*60*60+6.0*60*60))
+/****************************************************************************
+ Round up a timespec if nsec > 500000000, round down if lower,
+ then zero nsec.
+****************************************************************************/
+
+void round_timespec_to_sec(struct timespec *ts)
+{
+ ts->tv_sec = convert_timespec_to_time_t(*ts);
+ ts->tv_nsec = 0;
+}
/****************************************************************************
-interpret an 8 byte "filetime" structure to a time_t
-It's originally in "100ns units since jan 1st 1601"
+ Round a timespec to usec value.
+****************************************************************************/
+
+void round_timespec_to_usec(struct timespec *ts)
+{
+ struct timeval tv = convert_timespec_to_timeval(*ts);
+ *ts = convert_timeval_to_timespec(tv);
+}
-It appears to be kludge-GMT (at least for file listings). This means
-its the GMT you get by taking a localtime and adding the
-serverzone. This is NOT the same as GMT in some cases. This routine
-converts this to real GMT.
+/****************************************************************************
+ Interprets an nt time into a unix struct timespec.
+ Differs from nt_time_to_unix in that an 8 byte value of 0xffffffffffffffff
+ will be returned as (time_t)-1, whereas nt_time_to_unix returns 0 in this case.
****************************************************************************/
-time_t nt_time_to_unix(NTTIME *nt)
+
+struct timespec interpret_long_date(const char *p)
+{
+ NTTIME nt;
+ nt = IVAL(p,0) + ((uint64_t)IVAL(p,4) << 32);
+ if (nt == (uint64_t)-1) {
+ struct timespec ret;
+ ret.tv_sec = (time_t)-1;
+ ret.tv_nsec = 0;
+ return ret;
+ }
+ return nt_time_to_unix_timespec(&nt);
+}
+
+/***************************************************************************
+ Client versions of the above functions.
+***************************************************************************/
+
+void cli_put_dos_date(struct cli_state *cli, char *buf, int offset, time_t unixdate)
+{
+ push_dos_date((uint8_t *)buf, offset, unixdate, cli->serverzone);
+}
+
+void cli_put_dos_date2(struct cli_state *cli, char *buf, int offset, time_t unixdate)
+{
+ push_dos_date2((uint8_t *)buf, offset, unixdate, cli->serverzone);
+}
+
+void cli_put_dos_date3(struct cli_state *cli, char *buf, int offset, time_t unixdate)
+{
+ push_dos_date3((uint8_t *)buf, offset, unixdate, cli->serverzone);
+}
+
+time_t cli_make_unix_date(struct cli_state *cli, const void *date_ptr)
+{
+ return make_unix_date(date_ptr, cli->serverzone);
+}
+
+time_t cli_make_unix_date2(struct cli_state *cli, const void *date_ptr)
+{
+ return make_unix_date2(date_ptr, cli->serverzone);
+}
+
+time_t cli_make_unix_date3(struct cli_state *cli, const void *date_ptr)
{
- double d;
- time_t ret;
- /* The next two lines are a fix needed for the
- broken SCO compiler. JRA. */
- time_t l_time_min = TIME_T_MIN;
- time_t l_time_max = TIME_T_MAX;
+ return make_unix_date3(date_ptr, cli->serverzone);
+}
- if (nt->high == 0 || (nt->high == 0xffffffff && nt->low == 0xffffffff))
- return(0);
- d = ((double)nt->high)*4.0*(double)(1<<30);
- d += (nt->low&0xFFF00000);
- d *= 1.0e-7;
-
- /* now adjust by 369 years to make the secs since 1970 */
- d -= TIME_FIXUP_CONSTANT;
+/*******************************************************************
+ Re-read the smb serverzone value.
+******************************************************************/
- if (d <= l_time_min)
- return (l_time_min);
+static struct timeval start_time_hires;
- if (d >= l_time_max)
- return (l_time_max);
+void TimeInit(void)
+{
+ set_server_zone_offset(time(NULL));
- ret = (time_t)(d+0.5);
+ DEBUG(4,("TimeInit: Serverzone is %d\n", server_zone_offset));
- /* this takes us from kludge-GMT to real GMT */
- ret -= get_serverzone();
- ret += LocTimeDiff(ret);
+ /* Save the start time of this process. */
+ if (start_time_hires.tv_sec == 0 && start_time_hires.tv_usec == 0) {
+ GetTimeOfDay(&start_time_hires);
+ }
+}
- return(ret);
+/**********************************************************************
+ Return a timeval struct of the uptime of this process. As TimeInit is
+ done before a daemon fork then this is the start time from the parent
+ daemon start. JRA.
+***********************************************************************/
+
+void get_process_uptime(struct timeval *ret_time)
+{
+ struct timeval time_now_hires;
+
+ GetTimeOfDay(&time_now_hires);
+ ret_time->tv_sec = time_now_hires.tv_sec - start_time_hires.tv_sec;
+ if (time_now_hires.tv_usec < start_time_hires.tv_usec) {
+ ret_time->tv_sec -= 1;
+ ret_time->tv_usec = 1000000 + (time_now_hires.tv_usec - start_time_hires.tv_usec);
+ } else {
+ ret_time->tv_usec = time_now_hires.tv_usec - start_time_hires.tv_usec;
+ }
}
/****************************************************************************
if the NTTIME was 5 seconds, the time_t is 5 seconds. JFM
****************************************************************************/
-time_t nt_time_to_unix_abs(NTTIME *nt)
+time_t nt_time_to_unix_abs(const NTTIME *nt)
{
- double d;
- time_t ret;
- /* The next two lines are a fix needed for the
- broken SCO compiler. JRA. */
- time_t l_time_min = TIME_T_MIN;
- time_t l_time_max = TIME_T_MAX;
+ uint64_t d;
- if (nt->high == 0)
- return(0);
+ if (*nt == 0) {
+ return (time_t)0;
+ }
+
+ if (*nt == (uint64_t)-1) {
+ return (time_t)-1;
+ }
- if (nt->high==0x80000000 && nt->low==0)
- return -1;
+ if (*nt == NTTIME_INFINITY) {
+ return (time_t)-1;
+ }
/* reverse the time */
/* it's a negative value, turn it to positive */
- nt->high=~nt->high;
- nt->low=~nt->low;
+ d=~*nt;
- d = ((double)nt->high)*4.0*(double)(1<<30);
- d += (nt->low&0xFFF00000);
- d *= 1.0e-7;
-
- if (!(l_time_min <= d && d <= l_time_max))
- return(0);
+ d += 1000*1000*10/2;
+ d /= 1000*1000*10;
- ret = (time_t)(d+0.5);
+ if (!(TIME_T_MIN <= ((time_t)d) && ((time_t)d) <= TIME_T_MAX)) {
+ return (time_t)0;
+ }
- return(ret);
+ return (time_t)d;
}
-/****************************************************************************
-interprets an nt time into a unix time_t
-****************************************************************************/
-time_t interpret_long_date(char *p)
+time_t uint64s_nt_time_to_unix_abs(const uint64_t *src)
{
- NTTIME nt;
- nt.low = IVAL(p,0);
- nt.high = IVAL(p,4);
- return nt_time_to_unix(&nt);
+ NTTIME nttime;
+ nttime = *src;
+ return nt_time_to_unix_abs(&nttime);
}
/****************************************************************************
-put a 8 byte filetime from a time_t
-This takes real GMT as input and converts to kludge-GMT
+ Put a 8 byte filetime from a struct timespec. Uses GMT.
****************************************************************************/
-void unix_to_nt_time(NTTIME *nt, time_t t)
+
+void unix_timespec_to_nt_time(NTTIME *nt, struct timespec ts)
{
- double d;
+ uint64_t d;
- if (t==0)
- {
- nt->low = 0;
- nt->high = 0;
+ if (ts.tv_sec ==0 && ts.tv_nsec == 0) {
+ *nt = 0;
return;
}
- if (t == TIME_T_MAX)
- {
- nt->low = 0xffffffff;
- nt->high = 0x7fffffff;
+ if (ts.tv_sec == TIME_T_MAX) {
+ *nt = 0x7fffffffffffffffLL;
return;
}
- if (t == -1)
- {
- nt->low = 0xffffffff;
- nt->high = 0xffffffff;
+ if (ts.tv_sec == (time_t)-1) {
+ *nt = (uint64_t)-1;
return;
}
- /* this converts GMT to kludge-GMT */
- t -= TimeDiff(t) - get_serverzone();
+ d = ts.tv_sec;
+ d += TIME_FIXUP_CONSTANT_INT;
+ d *= 1000*1000*10;
+ /* d is now in 100ns units. */
+ d += (ts.tv_nsec / 100);
- d = (double)(t);
- d += TIME_FIXUP_CONSTANT;
- d *= 1.0e7;
+ *nt = d;
+}
+
+#if 0
+void nt_time_to_unix_timespec(struct timespec *ts, NTTIME t)
+{
+ if (ts == NULL) {
+ return;
+ }
- nt->high = (uint32)(d * (1.0/(4.0*(double)(1<<30))));
- nt->low = (uint32)(d - ((double)nt->high)*4.0*(double)(1<<30));
+ /* t starts in 100 nsec units since 1601-01-01. */
+
+ t *= 100;
+ /* t is now in nsec units since 1601-01-01. */
+
+ t -= TIME_FIXUP_CONSTANT*1000*1000*100;
+ /* t is now in nsec units since the UNIX epoch 1970-01-01. */
+
+ ts->tv_sec = t / 1000000000LL;
+
+ if (TIME_T_MIN > ts->tv_sec || ts->tv_sec > TIME_T_MAX) {
+ ts->tv_sec = 0;
+ ts->tv_nsec = 0;
+ return;
+ }
+
+ ts->tv_nsec = t - ts->tv_sec*1000000000LL;
}
+#endif
/****************************************************************************
Convert a time_t to a NTTIME structure
This is an absolute version of the one above.
By absolute I mean, it doesn't adjust from 1/1/1970 to 1/1/1601
- If the nttime_t was 5 seconds, the NTTIME is 5 seconds. JFM
+ If the time_t was 5 seconds, the NTTIME is 5 seconds. JFM
****************************************************************************/
void unix_to_nt_time_abs(NTTIME *nt, time_t t)
double d;
if (t==0) {
- nt->low = 0;
- nt->high = 0;
+ *nt = 0;
return;
}
if (t == TIME_T_MAX) {
- nt->low = 0xffffffff;
- nt->high = 0x7fffffff;
+ *nt = 0x7fffffffffffffffLL;
return;
}
- if (t == -1) {
+ if (t == (time_t)-1) {
/* that's what NT uses for infinite */
- nt->low = 0x0;
- nt->high = 0x80000000;
+ *nt = NTTIME_INFINITY;
return;
}
d = (double)(t);
d *= 1.0e7;
- nt->high = (uint32)(d * (1.0/(4.0*(double)(1<<30))));
- nt->low = (uint32)(d - ((double)nt->high)*4.0*(double)(1<<30));
+ *nt = (NTTIME)d;
/* convert to a negative value */
- nt->high=~nt->high;
- nt->low=~nt->low;
+ *nt=~*nt;
}
/****************************************************************************
-take an NTTIME structure, containing high / low time. convert to unix time.
-lkclXXXX this may need 2 SIVALs not a memcpy. we'll see...
+ Utility function that always returns a const string even if localtime
+ and asctime fail.
****************************************************************************/
-void put_long_date(char *p,time_t t)
-{
- NTTIME nt;
- unix_to_nt_time(&nt, t);
- SIVAL(p, 0, nt.low);
- SIVAL(p, 4, nt.high);
-}
-/****************************************************************************
-check if it's a null mtime
-****************************************************************************/
-BOOL null_mtime(time_t mtime)
+const char *time_to_asc(const time_t t)
{
- if (mtime == 0 || mtime == (time_t)0xFFFFFFFF || mtime == (time_t)-1)
- return(True);
- return(False);
-}
+ const char *asct;
+ struct tm *lt = localtime(&t);
-/*******************************************************************
- create a 16 bit dos packed date
-********************************************************************/
-static uint16 make_dos_date1(struct tm *t)
-{
- uint16 ret=0;
- ret = (((unsigned)(t->tm_mon+1)) >> 3) | ((t->tm_year-80) << 1);
- ret = ((ret&0xFF)<<8) | (t->tm_mday | (((t->tm_mon+1) & 0x7) << 5));
- return(ret);
-}
-
-/*******************************************************************
- create a 16 bit dos packed time
-********************************************************************/
-static uint16 make_dos_time1(struct tm *t)
-{
- uint16 ret=0;
- ret = ((((unsigned)t->tm_min >> 3)&0x7) | (((unsigned)t->tm_hour) << 3));
- ret = ((ret&0xFF)<<8) | ((t->tm_sec/2) | ((t->tm_min & 0x7) << 5));
- return(ret);
-}
-
-/*******************************************************************
- create a 32 bit dos packed date/time from some parameters
- This takes a GMT time and returns a packed localtime structure
-********************************************************************/
-static uint32 make_dos_date(time_t unixdate)
-{
- struct tm *t;
- uint32 ret=0;
-
- t = LocalTime(&unixdate);
- if (!t)
- return 0xFFFFFFFF;
-
- ret = make_dos_date1(t);
- ret = ((ret&0xFFFF)<<16) | make_dos_time1(t);
-
- return(ret);
-}
-
-/*******************************************************************
-put a dos date into a buffer (time/date format)
-This takes GMT time and puts local time in the buffer
-********************************************************************/
-void put_dos_date(char *buf,int offset,time_t unixdate)
-{
- uint32 x = make_dos_date(unixdate);
- SIVAL(buf,offset,x);
-}
-
-/*******************************************************************
-put a dos date into a buffer (date/time format)
-This takes GMT time and puts local time in the buffer
-********************************************************************/
-void put_dos_date2(char *buf,int offset,time_t unixdate)
-{
- uint32 x = make_dos_date(unixdate);
- x = ((x&0xFFFF)<<16) | ((x&0xFFFF0000)>>16);
- SIVAL(buf,offset,x);
-}
+ if (!lt) {
+ return "unknown time";
+ }
-/*******************************************************************
-put a dos 32 bit "unix like" date into a buffer. This routine takes
-GMT and converts it to LOCAL time before putting it (most SMBs assume
-localtime for this sort of date)
-********************************************************************/
-void put_dos_date3(char *buf,int offset,time_t unixdate)
-{
- if (!null_mtime(unixdate))
- unixdate -= TimeDiff(unixdate);
- SIVAL(buf,offset,unixdate);
+ asct = asctime(lt);
+ if (!asct) {
+ return "unknown time";
+ }
+ return asct;
}
-/*******************************************************************
- interpret a 32 bit dos packed date/time to some parameters
-********************************************************************/
-static void interpret_dos_date(uint32 date,int *year,int *month,int *day,int *hour,int *minute,int *second)
+const char *display_time(NTTIME nttime)
{
- uint32 p0,p1,p2,p3;
+ float high;
+ float low;
+ int sec;
+ int days, hours, mins, secs;
- p0=date&0xFF; p1=((date&0xFF00)>>8)&0xFF;
- p2=((date&0xFF0000)>>16)&0xFF; p3=((date&0xFF000000)>>24)&0xFF;
+ if (nttime==0)
+ return "Now";
- *second = 2*(p0 & 0x1F);
- *minute = ((p0>>5)&0xFF) + ((p1&0x7)<<3);
- *hour = (p1>>3)&0xFF;
- *day = (p2&0x1F);
- *month = ((p2>>5)&0xFF) + ((p3&0x1)<<3) - 1;
- *year = ((p3>>1)&0xFF) + 80;
-}
+ if (nttime==NTTIME_INFINITY)
+ return "Never";
-/*******************************************************************
- create a unix date (int GMT) from a dos date (which is actually in
- localtime)
-********************************************************************/
-time_t make_unix_date(void *date_ptr)
-{
- uint32 dos_date=0;
- struct tm t;
- time_t ret;
+ high = 65536;
+ high = high/10000;
+ high = high*65536;
+ high = high/1000;
+ high = high * (~(nttime >> 32));
- dos_date = IVAL(date_ptr,0);
+ low = ~(nttime & 0xFFFFFFFF);
+ low = low/(1000*1000*10);
- if (dos_date == 0) return(0);
-
- interpret_dos_date(dos_date,&t.tm_year,&t.tm_mon,
- &t.tm_mday,&t.tm_hour,&t.tm_min,&t.tm_sec);
- t.tm_isdst = -1;
-
- /* mktime() also does the local to GMT time conversion for us */
- ret = mktime(&t);
+ sec=(int)(high+low);
- return(ret);
-}
+ days=sec/(60*60*24);
+ hours=(sec - (days*60*60*24)) / (60*60);
+ mins=(sec - (days*60*60*24) - (hours*60*60) ) / 60;
+ secs=sec - (days*60*60*24) - (hours*60*60) - (mins*60);
-/*******************************************************************
-like make_unix_date() but the words are reversed
-********************************************************************/
-time_t make_unix_date2(void *date_ptr)
-{
- uint32 x,x2;
-
- x = IVAL(date_ptr,0);
- x2 = ((x&0xFFFF)<<16) | ((x&0xFFFF0000)>>16);
- SIVAL(&x,0,x2);
-
- return(make_unix_date((void *)&x));
+ return talloc_asprintf(talloc_tos(), "%u days, %u hours, %u minutes, "
+ "%u seconds", days, hours, mins, secs);
}
-/*******************************************************************
- create a unix GMT date from a dos date in 32 bit "unix like" format
- these generally arrive as localtimes, with corresponding DST
- ******************************************************************/
-time_t make_unix_date3(void *date_ptr)
+bool nt_time_is_set(const NTTIME *nt)
{
- time_t t = (time_t)IVAL(date_ptr,0);
- if (!null_mtime(t))
- t += LocTimeDiff(t);
- return(t);
-}
-
-
-/***************************************************************************
-return a HTTP/1.0 time string
- ***************************************************************************/
-char *http_timestring(time_t t)
-{
- static fstring buf;
- struct tm *tm = LocalTime(&t);
-
- if (!tm)
- slprintf(buf,sizeof(buf)-1,"%ld seconds since the Epoch",(long)t);
- else
-#ifndef HAVE_STRFTIME
- fstrcpy(buf, asctime(tm));
- if(buf[strlen(buf)-1] == '\n')
- buf[strlen(buf)-1] = 0;
-#else /* !HAVE_STRFTIME */
- strftime(buf, sizeof(buf)-1, "%a, %d %b %Y %H:%M:%S %Z", tm);
-#endif /* !HAVE_STRFTIME */
- return buf;
-}
-
-
-
-/****************************************************************************
- Return the date and time as a string
-****************************************************************************/
-
-char *timestring(BOOL hires)
-{
- static fstring TimeBuf;
- struct timeval tp;
- time_t t;
- struct tm *tm;
-
- if (hires) {
- GetTimeOfDay(&tp);
- t = (time_t)tp.tv_sec;
- } else {
- t = time(NULL);
+ if (*nt == 0x7FFFFFFFFFFFFFFFLL) {
+ return false;
}
- tm = LocalTime(&t);
- if (!tm) {
- if (hires) {
- slprintf(TimeBuf,
- sizeof(TimeBuf)-1,
- "%ld.%06ld seconds since the Epoch",
- (long)tp.tv_sec,
- (long)tp.tv_usec);
- } else {
- slprintf(TimeBuf,
- sizeof(TimeBuf)-1,
- "%ld seconds since the Epoch",
- (long)t);
- }
- } else {
-#ifdef HAVE_STRFTIME
- if (hires) {
- strftime(TimeBuf,sizeof(TimeBuf)-1,"%Y/%m/%d %H:%M:%S",tm);
- slprintf(TimeBuf+strlen(TimeBuf),
- sizeof(TimeBuf)-1 - strlen(TimeBuf),
- ".%06ld",
- (long)tp.tv_usec);
- } else {
- strftime(TimeBuf,100,"%Y/%m/%d %H:%M:%S",tm);
- }
-#else
- if (hires) {
- slprintf(TimeBuf,
- sizeof(TimeBuf)-1,
- "%s.%06ld",
- asctime(tm),
- (long)tp.tv_usec);
- } else {
- fstrcpy(TimeBuf, asctime(tm));
- }
-#endif
- }
- return(TimeBuf);
-}
-
-/****************************************************************************
- return the best approximation to a 'create time' under UNIX from a stat
- structure.
-****************************************************************************/
-
-time_t get_create_time(SMB_STRUCT_STAT *st,BOOL fake_dirs)
-{
- time_t ret, ret1;
-
- if(S_ISDIR(st->st_mode) && fake_dirs)
- return (time_t)315493200L; /* 1/1/1980 */
-
- ret = MIN(st->st_ctime, st->st_mtime);
- ret1 = MIN(ret, st->st_atime);
-
- if(ret1 != (time_t)0)
- return ret1;
- /*
- * One of ctime, mtime or atime was zero (probably atime).
- * Just return MIN(ctime, mtime).
- */
- return ret;
-}
-
-/****************************************************************************
-initialise an NTTIME to -1, which means "unknown" or "don't expire"
-****************************************************************************/
-
-void init_nt_time(NTTIME *nt)
-{
- nt->high = 0x7FFFFFFF;
- nt->low = 0xFFFFFFFF;
-}
+ if (*nt == NTTIME_INFINITY) {
+ return false;
+ }
-/****************************************************************************
-check if NTTIME is 0
-****************************************************************************/
-BOOL nt_time_is_zero(NTTIME *nt)
-{
- if(nt->high==0)
- return True;
- return False;
+ return true;
}
git.samba.org / ira / wip.git / blobdiff