2 Unix SMB/CIFS implementation.
3 time handling functions
4 Copyright (C) Andrew Tridgell 1992-1998
5 Copyright (C) Stefan (metze) Metzmacher 2002
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 This stuff was largely rewritten by Paul Eggert <eggert@twinsun.com>
28 int extra_time_offset = 0;
35 #define TIME_T_MIN ((time_t)0 < (time_t) -1 ? (time_t) 0 \
36 : ~ (time_t) 0 << (sizeof (time_t) * CHAR_BIT - 1))
39 #define TIME_T_MAX (~ (time_t) 0 - TIME_T_MIN)
42 /*******************************************************************
43 External access to time_t_min and time_t_max.
44 ********************************************************************/
46 time_t get_time_t_max(void)
51 /*******************************************************************
52 A gettimeofday wrapper.
53 ********************************************************************/
55 void GetTimeOfDay(struct timeval *tval)
57 #ifdef HAVE_GETTIMEOFDAY_TZ
58 gettimeofday(tval,NULL);
64 #define TM_YEAR_BASE 1900
66 /*******************************************************************
67 Yield the difference between *A and *B, in seconds, ignoring leap seconds.
68 ********************************************************************/
70 static int tm_diff(struct tm *a, struct tm *b)
72 int ay = a->tm_year + (TM_YEAR_BASE - 1);
73 int by = b->tm_year + (TM_YEAR_BASE - 1);
74 int intervening_leap_days = (ay/4 - by/4) - (ay/100 - by/100) + (ay/400 - by/400);
76 int days = 365*years + intervening_leap_days + (a->tm_yday - b->tm_yday);
77 int hours = 24*days + (a->tm_hour - b->tm_hour);
78 int minutes = 60*hours + (a->tm_min - b->tm_min);
79 int seconds = 60*minutes + (a->tm_sec - b->tm_sec);
84 /*******************************************************************
85 Return the UTC offset in seconds west of UTC, or 0 if it cannot be determined.
86 ******************************************************************/
88 int get_time_zone(time_t t)
90 struct tm *tm = gmtime(&t);
101 return tm_diff(&tm_utc,tm) + 60*extra_time_offset;
104 /*******************************************************************
105 Accessor function for the server time zone offset.
106 set_server_zone_offset() must have been called first.
107 ******************************************************************/
109 static int server_zone_offset;
111 int get_server_zone_offset(void)
113 return server_zone_offset;
116 /*******************************************************************
117 Initialize the server time zone offset. Called when a client connects.
118 ******************************************************************/
120 int set_server_zone_offset(time_t t)
122 server_zone_offset = get_time_zone(t);
123 return server_zone_offset;
126 /*******************************************************************
127 Re-read the smb serverzone value.
128 ******************************************************************/
130 static struct timeval start_time_hires;
134 set_server_zone_offset(time(NULL));
136 DEBUG(4,("TimeInit: Serverzone is %d\n", server_zone_offset));
138 /* Save the start time of this process. */
139 if (start_time_hires.tv_sec == 0 && start_time_hires.tv_usec == 0) {
140 GetTimeOfDay(&start_time_hires);
144 /**********************************************************************
145 Return a timeval struct of the uptime of this process. As TimeInit is
146 done before a daemon fork then this is the start time from the parent
148 ***********************************************************************/
150 void get_process_uptime(struct timeval *ret_time)
152 struct timeval time_now_hires;
154 GetTimeOfDay(&time_now_hires);
155 ret_time->tv_sec = time_now_hires.tv_sec - start_time_hires.tv_sec;
156 if (time_now_hires.tv_usec < start_time_hires.tv_usec) {
157 ret_time->tv_sec -= 1;
158 ret_time->tv_usec = 1000000 + (time_now_hires.tv_usec - start_time_hires.tv_usec);
160 ret_time->tv_usec = time_now_hires.tv_usec - start_time_hires.tv_usec;
165 /****************************************************************************
166 Return the UTC offset in seconds west of UTC, adjusted for extra time offset.
167 **************************************************************************/
169 int TimeDiff(time_t t)
171 return get_time_zone(t);
175 #define TIME_FIXUP_CONSTANT (369.0*365.25*24*60*60-(3.0*24*60*60+6.0*60*60))
177 /****************************************************************************
178 Interpret an 8 byte "filetime" structure to a time_t
179 It's originally in "100ns units since jan 1st 1601"
181 An 8 byte value of 0xffffffffffffffff will be returned as (time_t)0.
184 ****************************************************************************/
186 time_t nt_time_to_unix(NTTIME *nt)
190 /* The next two lines are a fix needed for the
191 broken SCO compiler. JRA. */
192 time_t l_time_min = TIME_T_MIN;
193 time_t l_time_max = TIME_T_MAX;
195 if (nt->high == 0 || (nt->high == 0xffffffff && nt->low == 0xffffffff)) {
199 d = ((double)nt->high)*4.0*(double)(1<<30);
200 d += (nt->low&0xFFF00000);
203 /* now adjust by 369 years to make the secs since 1970 */
204 d -= TIME_FIXUP_CONSTANT;
206 if (d <= l_time_min) {
210 if (d >= l_time_max) {
214 ret = (time_t)(d+0.5);
218 /****************************************************************************
219 Convert a NTTIME structure to a time_t.
220 It's originally in "100ns units".
222 This is an absolute version of the one above.
223 By absolute I mean, it doesn't adjust from 1/1/1601 to 1/1/1970
224 if the NTTIME was 5 seconds, the time_t is 5 seconds. JFM
225 ****************************************************************************/
227 time_t nt_time_to_unix_abs(const NTTIME *nt)
231 /* The next two lines are a fix needed for the
232 broken SCO compiler. JRA. */
233 time_t l_time_min = TIME_T_MIN;
234 time_t l_time_max = TIME_T_MAX;
241 if (nt->high==0x80000000 && nt->low==0) {
245 /* reverse the time */
246 /* it's a negative value, turn it to positive */
247 neg_nt.high=~nt->high;
250 d = ((double)neg_nt.high)*4.0*(double)(1<<30);
251 d += (neg_nt.low&0xFFF00000);
254 if (!(l_time_min <= d && d <= l_time_max)) {
258 ret = (time_t)(d+0.5);
263 /****************************************************************************
264 Interprets an nt time into a unix time_t.
265 Differs from nt_time_to_unix in that an 8 byte value of 0xffffffffffffffff
266 will be returned as (time_t)-1, whereas nt_time_to_unix returns 0 in this case.
267 ****************************************************************************/
269 time_t interpret_long_date(char *p)
274 if (nt.low == 0xFFFFFFFF && nt.high == 0xFFFFFFFF) {
277 return nt_time_to_unix(&nt);
280 /****************************************************************************
281 Put a 8 byte filetime from a time_t. Uses GMT.
282 ****************************************************************************/
284 void unix_to_nt_time(NTTIME *nt, time_t t)
293 if (t == TIME_T_MAX) {
294 nt->low = 0xffffffff;
295 nt->high = 0x7fffffff;
298 if (t == (time_t)-1) {
299 nt->low = 0xffffffff;
300 nt->high = 0xffffffff;
305 d += TIME_FIXUP_CONSTANT;
308 nt->high = (uint32)(d * (1.0/(4.0*(double)(1<<30))));
309 nt->low = (uint32)(d - ((double)nt->high)*4.0*(double)(1<<30));
312 /****************************************************************************
313 Convert a time_t to a NTTIME structure
315 This is an absolute version of the one above.
316 By absolute I mean, it doesn't adjust from 1/1/1970 to 1/1/1601
317 If the nttime_t was 5 seconds, the NTTIME is 5 seconds. JFM
318 ****************************************************************************/
320 void unix_to_nt_time_abs(NTTIME *nt, time_t t)
330 if (t == TIME_T_MAX) {
331 nt->low = 0xffffffff;
332 nt->high = 0x7fffffff;
336 if (t == (time_t)-1) {
337 /* that's what NT uses for infinite */
339 nt->high = 0x80000000;
346 nt->high = (uint32)(d * (1.0/(4.0*(double)(1<<30))));
347 nt->low = (uint32)(d - ((double)nt->high)*4.0*(double)(1<<30));
349 /* convert to a negative value */
354 /****************************************************************************
355 Take a Unix time and convert to an NTTIME structure and place in buffer
357 ****************************************************************************/
359 void put_long_date(char *p, time_t t)
362 unix_to_nt_time(&nt, t);
364 SIVAL(p, 4, nt.high);
367 /****************************************************************************
368 Check if it's a null mtime.
369 ****************************************************************************/
371 BOOL null_mtime(time_t mtime)
373 if (mtime == 0 || mtime == (time_t)0xFFFFFFFF || mtime == (time_t)-1)
378 /*******************************************************************
379 Create a 16 bit dos packed date.
380 ********************************************************************/
382 static uint16 make_dos_date1(struct tm *t)
385 ret = (((unsigned)(t->tm_mon+1)) >> 3) | ((t->tm_year-80) << 1);
386 ret = ((ret&0xFF)<<8) | (t->tm_mday | (((t->tm_mon+1) & 0x7) << 5));
390 /*******************************************************************
391 Create a 16 bit dos packed time.
392 ********************************************************************/
394 static uint16 make_dos_time1(struct tm *t)
397 ret = ((((unsigned)t->tm_min >> 3)&0x7) | (((unsigned)t->tm_hour) << 3));
398 ret = ((ret&0xFF)<<8) | ((t->tm_sec/2) | ((t->tm_min & 0x7) << 5));
402 /*******************************************************************
403 Create a 32 bit dos packed date/time from some parameters.
404 This takes a GMT time and returns a packed localtime structure.
405 ********************************************************************/
407 static uint32 make_dos_date(time_t unixdate, int zone_offset)
416 unixdate -= zone_offset;
417 t = gmtime(&unixdate);
422 ret = make_dos_date1(t);
423 ret = ((ret&0xFFFF)<<16) | make_dos_time1(t);
428 /*******************************************************************
429 Put a dos date into a buffer (time/date format).
430 This takes GMT time and puts local time in the buffer.
431 ********************************************************************/
433 static void put_dos_date(char *buf,int offset,time_t unixdate, int zone_offset)
435 uint32 x = make_dos_date(unixdate, zone_offset);
439 /*******************************************************************
440 Put a dos date into a buffer (date/time format).
441 This takes GMT time and puts local time in the buffer.
442 ********************************************************************/
444 static void put_dos_date2(char *buf,int offset,time_t unixdate, int zone_offset)
446 uint32 x = make_dos_date(unixdate, zone_offset);
447 x = ((x&0xFFFF)<<16) | ((x&0xFFFF0000)>>16);
451 /*******************************************************************
452 Put a dos 32 bit "unix like" date into a buffer. This routine takes
453 GMT and converts it to LOCAL time before putting it (most SMBs assume
454 localtime for this sort of date)
455 ********************************************************************/
457 static void put_dos_date3(char *buf,int offset,time_t unixdate, int zone_offset)
459 if (!null_mtime(unixdate)) {
460 unixdate -= zone_offset;
462 SIVAL(buf,offset,unixdate);
465 /*******************************************************************
466 Interpret a 32 bit dos packed date/time to some parameters.
467 ********************************************************************/
469 static void interpret_dos_date(uint32 date,int *year,int *month,int *day,int *hour,int *minute,int *second)
473 p0=date&0xFF; p1=((date&0xFF00)>>8)&0xFF;
474 p2=((date&0xFF0000)>>16)&0xFF; p3=((date&0xFF000000)>>24)&0xFF;
476 *second = 2*(p0 & 0x1F);
477 *minute = ((p0>>5)&0xFF) + ((p1&0x7)<<3);
478 *hour = (p1>>3)&0xFF;
480 *month = ((p2>>5)&0xFF) + ((p3&0x1)<<3) - 1;
481 *year = ((p3>>1)&0xFF) + 80;
484 /*******************************************************************
485 Create a unix date (int GMT) from a dos date (which is actually in
487 ********************************************************************/
489 static time_t make_unix_date(void *date_ptr, int zone_offset)
495 dos_date = IVAL(date_ptr,0);
501 interpret_dos_date(dos_date,&t.tm_year,&t.tm_mon,
502 &t.tm_mday,&t.tm_hour,&t.tm_min,&t.tm_sec);
512 /*******************************************************************
513 Like make_unix_date() but the words are reversed.
514 ********************************************************************/
516 static time_t make_unix_date2(void *date_ptr, int zone_offset)
520 x = IVAL(date_ptr,0);
521 x2 = ((x&0xFFFF)<<16) | ((x&0xFFFF0000)>>16);
524 return(make_unix_date((void *)&x, zone_offset));
527 /*******************************************************************
528 Create a unix GMT date from a dos date in 32 bit "unix like" format
529 these generally arrive as localtimes, with corresponding DST.
530 ******************************************************************/
532 static time_t make_unix_date3(void *date_ptr, int zone_offset)
534 time_t t = (time_t)IVAL(date_ptr,0);
535 if (!null_mtime(t)) {
541 /***************************************************************************
542 Server versions of the above functions.
543 ***************************************************************************/
545 void srv_put_dos_date(char *buf,int offset,time_t unixdate)
547 put_dos_date(buf, offset, unixdate, server_zone_offset);
550 void srv_put_dos_date2(char *buf,int offset, time_t unixdate)
552 put_dos_date2(buf, offset, unixdate, server_zone_offset);
555 void srv_put_dos_date3(char *buf,int offset,time_t unixdate)
557 put_dos_date3(buf, offset, unixdate, server_zone_offset);
560 time_t srv_make_unix_date(void *date_ptr)
562 return make_unix_date(date_ptr, server_zone_offset);
565 time_t srv_make_unix_date2(void *date_ptr)
567 return make_unix_date2(date_ptr, server_zone_offset);
570 time_t srv_make_unix_date3(void *date_ptr)
572 return make_unix_date3(date_ptr, server_zone_offset);
575 /***************************************************************************
576 Client versions of the above functions.
577 ***************************************************************************/
579 void cli_put_dos_date(struct cli_state *cli, char *buf, int offset, time_t unixdate)
581 put_dos_date(buf, offset, unixdate, cli->serverzone);
584 void cli_put_dos_date2(struct cli_state *cli, char *buf, int offset, time_t unixdate)
586 put_dos_date2(buf, offset, unixdate, cli->serverzone);
589 void cli_put_dos_date3(struct cli_state *cli, char *buf, int offset, time_t unixdate)
591 put_dos_date3(buf, offset, unixdate, cli->serverzone);
594 time_t cli_make_unix_date(struct cli_state *cli, void *date_ptr)
596 return make_unix_date(date_ptr, cli->serverzone);
599 time_t cli_make_unix_date2(struct cli_state *cli, void *date_ptr)
601 return make_unix_date2(date_ptr, cli->serverzone);
604 time_t cli_make_unix_date3(struct cli_state *cli, void *date_ptr)
606 return make_unix_date3(date_ptr, cli->serverzone);
609 /***************************************************************************
610 Return a HTTP/1.0 time string.
611 ***************************************************************************/
613 char *http_timestring(time_t t)
616 struct tm *tm = localtime(&t);
619 slprintf(buf,sizeof(buf)-1,"%ld seconds since the Epoch",(long)t);
621 #ifndef HAVE_STRFTIME
622 const char *asct = asctime(tm);
623 fstrcpy(buf, asct ? asct : "unknown");
625 if(buf[strlen(buf)-1] == '\n') {
626 buf[strlen(buf)-1] = 0;
627 #else /* !HAVE_STRFTIME */
628 strftime(buf, sizeof(buf)-1, "%a, %d %b %Y %H:%M:%S %Z", tm);
629 #endif /* !HAVE_STRFTIME */
634 /****************************************************************************
635 Return the date and time as a string
636 ****************************************************************************/
638 char *current_timestring(BOOL hires)
640 static fstring TimeBuf;
647 t = (time_t)tp.tv_sec;
656 "%ld.%06ld seconds since the Epoch",
662 "%ld seconds since the Epoch",
668 strftime(TimeBuf,sizeof(TimeBuf)-1,"%Y/%m/%d %H:%M:%S",tm);
669 slprintf(TimeBuf+strlen(TimeBuf),
670 sizeof(TimeBuf)-1 - strlen(TimeBuf),
674 strftime(TimeBuf,sizeof(TimeBuf)-1,"%Y/%m/%d %H:%M:%S",tm);
678 const char *asct = asctime(tm);
682 asct ? asct : "unknown",
685 const char *asct = asctime(tm);
686 fstrcpy(TimeBuf, asct ? asct : "unknown");
693 /****************************************************************************
694 Return the best approximation to a 'create time' under UNIX from a stat
696 ****************************************************************************/
698 time_t get_create_time(SMB_STRUCT_STAT *st,BOOL fake_dirs)
702 if(S_ISDIR(st->st_mode) && fake_dirs) {
703 return (time_t)315493200L; /* 1/1/1980 */
706 ret = MIN(st->st_ctime, st->st_mtime);
707 ret1 = MIN(ret, st->st_atime);
709 if(ret1 != (time_t)0) {
714 * One of ctime, mtime or atime was zero (probably atime).
715 * Just return MIN(ctime, mtime).
720 /****************************************************************************
721 Initialise an NTTIME to -1, which means "unknown" or "don't expire".
722 ****************************************************************************/
724 void init_nt_time(NTTIME *nt)
726 nt->high = 0x7FFFFFFF;
727 nt->low = 0xFFFFFFFF;
730 BOOL nt_time_is_set(const NTTIME *nt)
732 if ((nt->high == 0x7FFFFFFF) && (nt->low == 0xFFFFFFFF)) {
736 if ((nt->high == 0x80000000) && (nt->low == 0)) {
743 /****************************************************************************
744 Check if NTTIME is 0.
745 ****************************************************************************/
747 BOOL nt_time_is_zero(const NTTIME *nt)
755 /****************************************************************************
756 Check if two NTTIMEs are the same.
757 ****************************************************************************/
759 BOOL nt_time_equals(const NTTIME *nt1, const NTTIME *nt2)
761 return (nt1->high == nt2->high && nt1->low == nt2->low);
764 /****************************************************************************
765 Return a timeval difference in usec.
766 ****************************************************************************/
768 SMB_BIG_INT usec_time_diff(const struct timeval *larget, const struct timeval *smallt)
770 SMB_BIG_INT sec_diff = larget->tv_sec - smallt->tv_sec;
771 return (sec_diff * 1000000) + (SMB_BIG_INT)(larget->tv_usec - smallt->tv_usec);
774 /****************************************************************************
775 Return a timeval struct with the given elements.
776 ****************************************************************************/
778 struct timeval timeval_set(uint32_t secs, uint32_t usecs)
786 /****************************************************************************
787 Return a zero timeval.
788 ****************************************************************************/
790 struct timeval timeval_zero(void)
792 return timeval_set(0,0);
795 /****************************************************************************
796 Return True if a timeval is zero.
797 ****************************************************************************/
799 BOOL timeval_is_zero(const struct timeval *tv)
801 return tv->tv_sec == 0 && tv->tv_usec == 0;
804 /****************************************************************************
805 Return a timeval for the current time.
806 ****************************************************************************/
808 struct timeval timeval_current(void)
815 /****************************************************************************
816 Return a timeval ofs microseconds after tv.
817 ****************************************************************************/
819 struct timeval timeval_add(const struct timeval *tv,
820 uint32_t secs, uint32_t usecs)
822 struct timeval tv2 = *tv;
824 tv2.tv_usec += usecs;
825 tv2.tv_sec += tv2.tv_usec / 1000000;
826 tv2.tv_usec = tv2.tv_usec % 1000000;
830 /****************************************************************************
831 Return the sum of two timeval structures.
832 ****************************************************************************/
834 struct timeval timeval_sum(const struct timeval *tv1,
835 const struct timeval *tv2)
837 return timeval_add(tv1, tv2->tv_sec, tv2->tv_usec);
840 /****************************************************************************
841 Return a timeval secs/usecs into the future.
842 ****************************************************************************/
844 struct timeval timeval_current_ofs(uint32_t secs, uint32_t usecs)
846 struct timeval tv = timeval_current();
847 return timeval_add(&tv, secs, usecs);
850 /****************************************************************************
851 Compare two timeval structures.
852 Return -1 if tv1 < tv2
853 Return 0 if tv1 == tv2
854 Return 1 if tv1 > tv2
855 ****************************************************************************/
857 int timeval_compare(const struct timeval *tv1, const struct timeval *tv2)
859 if (tv1->tv_sec > tv2->tv_sec) {
862 if (tv1->tv_sec < tv2->tv_sec) {
865 if (tv1->tv_usec > tv2->tv_usec) {
868 if (tv1->tv_usec < tv2->tv_usec) {
874 /****************************************************************************
875 Return the difference between two timevals as a timeval.
876 If tv1 comes after tv2, then return a zero timeval
877 (this is *tv2 - *tv1).
878 ****************************************************************************/
880 struct timeval timeval_until(const struct timeval *tv1,
881 const struct timeval *tv2)
884 if (timeval_compare(tv1, tv2) >= 0) {
885 return timeval_zero();
887 t.tv_sec = tv2->tv_sec - tv1->tv_sec;
888 if (tv1->tv_usec > tv2->tv_usec) {
890 t.tv_usec = 1000000 - (tv1->tv_usec - tv2->tv_usec);
892 t.tv_usec = tv2->tv_usec - tv1->tv_usec;
897 /****************************************************************************
898 Return the lesser of two timevals.
899 ****************************************************************************/
901 struct timeval timeval_min(const struct timeval *tv1,
902 const struct timeval *tv2)
904 if (tv1->tv_sec < tv2->tv_sec) {
907 if (tv1->tv_sec > tv2->tv_sec) {
910 if (tv1->tv_usec < tv2->tv_usec) {
916 /****************************************************************************
917 Return the greater of two timevals.
918 ****************************************************************************/
920 struct timeval timeval_max(const struct timeval *tv1,
921 const struct timeval *tv2)
923 if (tv1->tv_sec > tv2->tv_sec) {
926 if (tv1->tv_sec < tv2->tv_sec) {
929 if (tv1->tv_usec > tv2->tv_usec) {
935 /****************************************************************************
936 Convert ASN.1 GeneralizedTime string to unix-time.
937 Returns 0 on failure; Currently ignores timezone.
938 ****************************************************************************/
940 time_t generalized_to_unix_time(const char *str)
946 if (sscanf(str, "%4d%2d%2d%2d%2d%2d",
947 &tm.tm_year, &tm.tm_mon, &tm.tm_mday,
948 &tm.tm_hour, &tm.tm_min, &tm.tm_sec) != 6) {
957 /****************************************************************************
958 Return all the possible time fields from a stat struct as a timespec.
959 ****************************************************************************/
961 struct timespec get_atimespec(SMB_STRUCT_STAT *pst)
963 #if !defined(HAVE_STAT_HIRES_TIMESTAMPS)
966 /* Old system - no ns timestamp. */
967 ret.tv_sec = pst->st_atime;
971 #if defined(HAVE_STAT_ST_ATIM)
973 #elif defined(HAVE_STAT_ST_ATIMENSEC)
975 ret.tv_sec = pst->st_atime;
976 ret.tv_nsec = pst->st_atimensec;
979 #error CONFIGURE_ERROR_IN_DETECTING_TIMESPEC_IN_STAT
984 struct timespec get_mtimespec(SMB_STRUCT_STAT *pst)
986 #if !defined(HAVE_STAT_HIRES_TIMESTAMPS)
989 /* Old system - no ns timestamp. */
990 ret.tv_sec = pst->st_mtime;
994 #if defined(HAVE_STAT_ST_MTIM)
996 #elif defined(HAVE_STAT_ST_MTIMENSEC)
998 ret.tv_sec = pst->st_mtime;
999 ret.tv_nsec = pst->st_mtimensec;
1002 #error CONFIGURE_ERROR_IN_DETECTING_TIMESPEC_IN_STAT
1007 struct timespec get_ctimespec(SMB_STRUCT_STAT *pst)
1009 #if !defined(HAVE_STAT_HIRES_TIMESTAMPS)
1010 struct timespec ret;
1012 /* Old system - no ns timestamp. */
1013 ret.tv_sec = pst->st_ctime;
1017 #if defined(HAVE_STAT_ST_CTIM)
1018 return pst->st_ctim;
1019 #elif defined(HAVE_STAT_ST_CTIMENSEC)
1020 struct timespec ret;
1021 ret.tv_sec = pst->st_ctime;
1022 ret.tv_nsec = pst->st_ctimensec;
1025 #error CONFIGURE_ERROR_IN_DETECTING_TIMESPEC_IN_STAT
1031 /****************************************************************************
1032 Return the best approximation to a 'create time' under UNIX from a stat
1034 ****************************************************************************/
1036 struct timespec get_create_timespec(SMB_STRUCT_STAT *st,BOOL fake_dirs)
1040 if(S_ISDIR(st->st_mode) && fake_dirs) {
1041 return (time_t)315493200L; /* 1/1/1980 */
1044 ret = MIN(st->st_ctime, st->st_mtime);
1045 ret1 = MIN(ret, st->st_atime);
1047 if(ret1 != (time_t)0) {
1052 * One of ctime, mtime or atime was zero (probably atime).
1053 * Just return MIN(ctime, mtime).
1061 Return the date and time as a string
1063 char *timestring(TALLOC_CTX *mem_ctx, time_t t)
1071 return talloc_asprintf(mem_ctx,
1072 "%ld seconds since the Epoch",
1076 #ifdef HAVE_STRFTIME
1077 /* some versions of gcc complain about using %c. This is a bug
1078 in the gcc warning, not a bug in this code. See a recent
1079 strftime() manual page for details.
1081 strftime(tempTime,sizeof(tempTime)-1,"%c %Z",tm);
1082 TimeBuf = talloc_strdup(mem_ctx, tempTime);
1084 TimeBuf = talloc_strdup(mem_ctx, asctime(tm));
1092 return a talloced string representing a NTTIME for human consumption
1094 const char *nt_time_string(TALLOC_CTX *mem_ctx, NTTIME nt)
1097 if (nt.low == 0 && nt.high == 0) {
1100 t = nt_time_to_unix(&nt);
1101 return timestring(mem_ctx, t);
1104 /****************************************************************************
1105 Utility function that always returns a const string even if localtime
1107 ****************************************************************************/
1109 const char *time_to_asc(const time_t *t)
1112 struct tm *lt = localtime(t);
1115 return "unknown time";
1120 return "unknown time";