/*
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
- */
-
-
-int extra_time_offset = 0;
+/**
+ * @file
+ * @brief time handling functions
+ */
-#ifndef CHAR_BIT
-#define CHAR_BIT 8
-#endif
#ifndef TIME_T_MIN
#define TIME_T_MIN ((time_t)0 < (time_t) -1 ? (time_t) 0 \
#define TIME_T_MAX (~ (time_t) 0 - TIME_T_MIN)
#endif
-void get_nttime_max(NTTIME *t)
-{
- /* FIXME: This is incorrect */
- unix_to_nt_time(t, get_time_t_max());
-}
+#define NTTIME_INFINITY (NTTIME)0x8000000000000000LL
-/*******************************************************************
+/***************************************************************************
External access to time_t_min and time_t_max.
-********************************************************************/
+****************************************************************************/
time_t get_time_t_max(void)
{
return TIME_T_MAX;
}
-/*******************************************************************
+/***************************************************************************
A gettimeofday wrapper.
-********************************************************************/
+****************************************************************************/
void GetTimeOfDay(struct timeval *tval)
{
#endif
}
-#define TM_YEAR_BASE 1900
-
-/*******************************************************************
- Yield the difference between *A and *B, in seconds, ignoring leap seconds.
-********************************************************************/
-
-static int tm_diff(struct tm *a, struct tm *b)
-{
- 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);
-
- return seconds;
-}
-
-/*******************************************************************
- Return the UTC offset in seconds west of UTC, or 0 if it cannot be determined.
-******************************************************************/
-
-static int TimeZone(time_t t)
-{
- 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);
-}
-
-static BOOL done_serverzone_init;
-
-/*******************************************************************
- Return the smb serverzone value.
-******************************************************************/
-
-static int get_serverzone(void)
-{
- static int serverzone;
-
- if (!done_serverzone_init) {
- serverzone = TimeZone(time(NULL));
-
- if ((serverzone % 60) != 0) {
- DEBUG(1,("WARNING: Your timezone is not a multiple of 1 minute.\n"));
- }
-
- DEBUG(4,("Serverzone is %d\n",serverzone));
-
- done_serverzone_init = True;
- }
-
- return serverzone;
-}
-
-/*******************************************************************
- Re-read the smb serverzone value.
-******************************************************************/
-
-static struct timeval start_time_hires;
-
-void TimeInit(void)
-{
- 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);
-}
-
-/**********************************************************************
- 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;
- 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;
-}
-
-/*******************************************************************
- Return the same value as TimeZone, but it should be more efficient.
-
- 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.
-
- 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 = SMB_REALLOC_ARRAY(dst_table, struct dst_table, 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));
+#if (SIZEOF_LONG == 8)
+#define TIME_FIXUP_CONSTANT_INT 11644473600L
+#elif (SIZEOF_LONG_LONG == 8)
+#define TIME_FIXUP_CONSTANT_INT 11644473600LL
#endif
- }
- }
- return zone;
-}
-
-/****************************************************************************
- Return the UTC offset in seconds west of UTC, adjusted for extra time offset.
-**************************************************************************/
-
-int TimeDiff(time_t t)
-{
- return TimeZoneFaster(t) + 60*extra_time_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)
-{
- time_t lt = lte - 60*extra_time_offset;
- int d = TimeZoneFaster(lt);
- time_t t = lt + d;
-
- /* if overflow occurred, ignore all the adjustments so far */
- if (((lte < lt) ^ (extra_time_offset < 0)) | ((t < lt) ^ (d < 0)))
- t = lte;
-
- /* now t should be close enough to the true UTC to yield the right answer */
- return TimeDiff(t);
-}
-
-/****************************************************************************
- Try to optimise the localtime call, it can be quite expensive on some machines.
-****************************************************************************/
-
-struct tm *LocalTime(time_t *t)
-{
- time_t t2 = *t;
-
- t2 -= TimeDiff(t2);
-
- return(gmtime(&t2));
-}
-
-#define TIME_FIXUP_CONSTANT (369.0*365.25*24*60*60-(3.0*24*60*60+6.0*60*60))
/****************************************************************************
Interpret an 8 byte "filetime" structure to a time_t
It's originally in "100ns units since jan 1st 1601"
- 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.
-****************************************************************************/
-
-time_t nt_time_to_unix(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;
-
- 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;
-
- if (d <= l_time_min)
- return (l_time_min);
-
- if (d >= l_time_max)
- return (l_time_max);
-
- ret = (time_t)(d+0.5);
-
- /* this takes us from kludge-GMT to real GMT */
- ret -= get_serverzone();
- ret += LocTimeDiff(ret);
-
- return(ret);
-}
-
-/****************************************************************************
- Convert a NTTIME structure to a time_t.
- It's originally in "100ns units".
-
- This is an absolute version of the one above.
- By absolute I mean, it doesn't adjust from 1/1/1601 to 1/1/1970
- if the NTTIME was 5 seconds, the time_t is 5 seconds. JFM
-****************************************************************************/
-
-time_t nt_time_to_unix_abs(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;
-
- if (nt->high == 0)
- return(0);
-
- if (nt->high==0x80000000 && nt->low==0)
- return -1;
-
- /* reverse the time */
- /* it's a negative value, turn it to positive */
- nt->high=~nt->high;
- nt->low=~nt->low;
-
- 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);
-
- ret = (time_t)(d+0.5);
+ An 8 byte value of 0xffffffffffffffff will be returned as a timespec of
- return(ret);
-}
+ tv_sec = 0
+ tv_nsec = 0;
-/****************************************************************************
- Interprets an nt time into a unix time_t.
+ Returns GMT.
****************************************************************************/
-time_t interpret_long_date(char *p)
+time_t nt_time_to_unix(NTTIME nt)
{
- NTTIME nt;
- nt.low = IVAL(p,0);
- nt.high = IVAL(p,4);
- return nt_time_to_unix(&nt);
+ return convert_timespec_to_time_t(nt_time_to_unix_timespec(&nt));
}
/****************************************************************************
- 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 time_t. Uses GMT.
****************************************************************************/
void unix_to_nt_time(NTTIME *nt, time_t t)
{
- double d;
+ uint64_t t2;
- if (t==0) {
- nt->low = 0;
- nt->high = 0;
+ if (t == (time_t)-1) {
+ *nt = (NTTIME)-1LL;
return;
- }
+ }
+
if (t == TIME_T_MAX) {
- nt->low = 0xffffffff;
- nt->high = 0x7fffffff;
+ *nt = 0x7fffffffffffffffLL;
return;
- }
- if (t == -1) {
- nt->low = 0xffffffff;
- nt->high = 0xffffffff;
+ }
+
+ if (t == 0) {
+ *nt = 0;
return;
}
- /* this converts GMT to kludge-GMT */
- t -= TimeDiff(t) - get_serverzone();
-
- d = (double)(t);
- d += TIME_FIXUP_CONSTANT;
- d *= 1.0e7;
+ t2 = t;
+ t2 += TIME_FIXUP_CONSTANT_INT;
+ t2 *= 1000*1000*10;
- nt->high = (uint32)(d * (1.0/(4.0*(double)(1<<30))));
- nt->low = (uint32)(d - ((double)nt->high)*4.0*(double)(1<<30));
+ *nt = t2;
}
/****************************************************************************
- 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
+ Check if it's a null unix time.
****************************************************************************/
-void unix_to_nt_time_abs(NTTIME *nt, time_t t)
+bool null_time(time_t t)
{
- double d;
-
- if (t==0) {
- nt->low = 0;
- nt->high = 0;
- return;
- }
-
- if (t == TIME_T_MAX) {
- nt->low = 0xffffffff;
- nt->high = 0x7fffffff;
- return;
- }
-
- if (t == -1) {
- /* that's what NT uses for infinite */
- nt->low = 0x0;
- nt->high = 0x80000000;
- 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));
-
- /* convert to a negative value */
- nt->high=~nt->high;
- nt->low=~nt->low;
+ return t == 0 ||
+ t == (time_t)0xFFFFFFFF ||
+ t == (time_t)-1;
}
/****************************************************************************
- Take a Unix time and convert to an NTTIME structure and place in buffer
- pointed to by p.
+ Check if it's a null NTTIME.
****************************************************************************/
-void put_long_date(char *p,time_t t)
+bool null_nttime(NTTIME t)
{
- NTTIME nt;
- unix_to_nt_time(&nt, t);
- SIVAL(p, 0, nt.low);
- SIVAL(p, 4, nt.high);
+ return t == 0 || t == (NTTIME)-1;
}
/****************************************************************************
- Check if it's a null mtime.
+ Check if it's a null timespec.
****************************************************************************/
-BOOL null_mtime(time_t mtime)
+bool null_timespec(struct timespec ts)
{
- if (mtime == 0 || mtime == (time_t)0xFFFFFFFF || mtime == (time_t)-1)
- return(True);
- return(False);
+ return ts.tv_sec == 0 ||
+ ts.tv_sec == (time_t)0xFFFFFFFF ||
+ ts.tv_sec == (time_t)-1;
}
/*******************************************************************
- Create a 16 bit dos packed date.
+ create a 16 bit dos packed date
********************************************************************/
-
-static uint16 make_dos_date1(struct tm *t)
+static uint16_t make_dos_date1(struct tm *t)
{
- uint16 ret=0;
- ret = (((unsigned)(t->tm_mon+1)) >> 3) | ((t->tm_year-80) << 1);
+ uint16_t ret=0;
+ ret = (((unsigned int)(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);
+ return ret;
}
/*******************************************************************
- Create a 16 bit dos packed time.
+ create a 16 bit dos packed time
********************************************************************/
-
-static uint16 make_dos_time1(struct tm *t)
+static uint16_t make_dos_time1(struct tm *t)
{
- uint16 ret=0;
- ret = ((((unsigned)t->tm_min >> 3)&0x7) | (((unsigned)t->tm_hour) << 3));
+ uint16_t ret=0;
+ ret = ((((unsigned int)t->tm_min >> 3)&0x7) | (((unsigned int)t->tm_hour) << 3));
ret = ((ret&0xFF)<<8) | ((t->tm_sec/2) | ((t->tm_min & 0x7) << 5));
- return(ret);
+ return ret;
}
/*******************************************************************
- Create a 32 bit dos packed date/time from some parameters.
- This takes a GMT time and returns a packed localtime structure.
+ 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)
+static uint32_t make_dos_date(time_t unixdate, int zone_offset)
{
struct tm *t;
- uint32 ret=0;
+ uint32_t ret=0;
+
+ if (unixdate == 0) {
+ return 0;
+ }
+
+ unixdate -= zone_offset;
- t = LocalTime(&unixdate);
- if (!t)
+ t = gmtime(&unixdate);
+ if (!t) {
return 0xFFFFFFFF;
+ }
ret = make_dos_date1(t);
ret = ((ret&0xFFFF)<<16) | make_dos_time1(t);
- return(ret);
+ 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)
+/**
+put a dos date into a buffer (time/date format)
+This takes GMT time and puts local time in the buffer
+**/
+void push_dos_date(uint8_t *buf, int offset, time_t unixdate, int zone_offset)
{
- uint32 x = make_dos_date(unixdate);
+ uint32_t x = make_dos_date(unixdate, zone_offset);
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)
+/**
+put a dos date into a buffer (date/time format)
+This takes GMT time and puts local time in the buffer
+**/
+void push_dos_date2(uint8_t *buf,int offset,time_t unixdate, int zone_offset)
{
- uint32 x = make_dos_date(unixdate);
+ uint32_t x;
+ x = make_dos_date(unixdate, zone_offset);
x = ((x&0xFFFF)<<16) | ((x&0xFFFF0000)>>16);
SIVAL(buf,offset,x);
}
-/*******************************************************************
- 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)
+/**
+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 push_dos_date3(uint8_t *buf,int offset,time_t unixdate, int zone_offset)
{
- if (!null_mtime(unixdate))
- unixdate -= TimeDiff(unixdate);
+ if (!null_time(unixdate)) {
+ unixdate -= zone_offset;
+ }
SIVAL(buf,offset,unixdate);
}
/*******************************************************************
- Interpret a 32 bit dos packed date/time to some parameters.
+ 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)
+static void interpret_dos_date(uint32_t date,int *year,int *month,int *day,int *hour,int *minute,int *second)
{
- uint32 p0,p1,p2,p3;
+ uint32_t p0,p1,p2,p3;
p0=date&0xFF; p1=((date&0xFF00)>>8)&0xFF;
p2=((date&0xFF0000)>>16)&0xFF; p3=((date&0xFF000000)>>24)&0xFF;
*year = ((p3>>1)&0xFF) + 80;
}
-/*******************************************************************
- Create a unix date (int GMT) from a dos date (which is actually in
- localtime).
-********************************************************************/
-
-time_t make_unix_date(void *date_ptr)
+/**
+ create a unix date (int GMT) from a dos date (which is actually in
+ localtime)
+**/
+time_t pull_dos_date(const uint8_t *date_ptr, int zone_offset)
{
- uint32 dos_date=0;
+ uint32_t dos_date=0;
struct tm t;
time_t ret;
dos_date = IVAL(date_ptr,0);
- if (dos_date == 0)
- return(0);
+ if (dos_date == 0) return (time_t)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_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);
+ ret = timegm(&t);
- return(ret);
-}
+ ret += zone_offset;
-/*******************************************************************
- Like make_unix_date() but the words are reversed.
-********************************************************************/
+ return ret;
+}
-time_t make_unix_date2(void *date_ptr)
+/**
+like make_unix_date() but the words are reversed
+**/
+time_t pull_dos_date2(const uint8_t *date_ptr, int zone_offset)
{
- uint32 x,x2;
+ uint32_t 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 pull_dos_date((const uint8_t *)&x, zone_offset);
}
-/*******************************************************************
- 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)
+/**
+ 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 pull_dos_date3(const uint8_t *date_ptr, int zone_offset)
{
time_t t = (time_t)IVAL(date_ptr,0);
- if (!null_mtime(t))
- t += LocTimeDiff(t);
- return(t);
+ if (!null_time(t)) {
+ t += zone_offset;
+ }
+ return t;
}
/***************************************************************************
char *http_timestring(time_t t)
{
- static fstring buf;
- struct tm *tm = LocalTime(&t);
+ fstring buf;
+ struct tm *tm = localtime(&t);
- if (!tm)
- slprintf(buf,sizeof(buf)-1,"%ld seconds since the Epoch",(long)t);
- else
+ if (t == TIME_T_MAX) {
+ fstrcpy(buf, "never");
+ } else if (!tm) {
+ fstr_sprintf(buf, "%ld seconds since the Epoch", (long)t);
+ } else {
#ifndef HAVE_STRFTIME
- fstrcpy(buf, asctime(tm));
- if(buf[strlen(buf)-1] == '\n')
+ const char *asct = asctime(tm);
+ fstrcpy(buf, asct ? asct : "unknown");
+ }
+ 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 talloc_strdup(talloc_tos(), buf);
+}
+
+
+/**
+ Return the date and time as a string
+**/
+char *timestring(TALLOC_CTX *mem_ctx, time_t t)
+{
+ char *TimeBuf;
+ char tempTime[80];
+ struct tm *tm;
+
+ tm = localtime(&t);
+ if (!tm) {
+ return talloc_asprintf(mem_ctx,
+ "%ld seconds since the Epoch",
+ (long)t);
+ }
+
+#ifdef HAVE_STRFTIME
+ /* some versions of gcc complain about using %c. This is a bug
+ in the gcc warning, not a bug in this code. See a recent
+ strftime() manual page for details.
+ */
+ strftime(tempTime,sizeof(tempTime)-1,"%c %Z",tm);
+ TimeBuf = talloc_strdup(mem_ctx, tempTime);
+#else
+ TimeBuf = talloc_strdup(mem_ctx, asctime(tm));
+#endif
+
+ return TimeBuf;
+}
+
+/**
+ return a talloced string representing a NTTIME for human consumption
+*/
+const char *nt_time_string(TALLOC_CTX *mem_ctx, NTTIME nt)
+{
+ time_t t;
+ if (nt == 0) {
+ return "NTTIME(0)";
+ }
+ t = nt_time_to_unix(nt);
+ return timestring(mem_ctx, t);
+}
+
+
+/**
+ 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);
+}
+
+/**
+ return (tv1 - tv2) in microseconds
+*/
+int64_t usec_time_diff(struct timeval *tv1, struct timeval *tv2)
+{
+ int64_t sec_diff = tv1->tv_sec - tv2->tv_sec;
+ return (sec_diff * 1000000) + (int64_t)(tv1->tv_usec - tv2->tv_usec);
+}
+
+
+/**
+ return a zero timeval
+*/
+struct timeval timeval_zero(void)
+{
+ struct timeval tv;
+ tv.tv_sec = 0;
+ tv.tv_usec = 0;
+ return tv;
+}
+
+/**
+ return True if a timeval is zero
+*/
+bool timeval_is_zero(const struct timeval *tv)
+{
+ return tv->tv_sec == 0 && tv->tv_usec == 0;
+}
+
+/**
+ return a timeval for the current time
+*/
+struct timeval timeval_current(void)
+{
+ struct timeval tv;
+ GetTimeOfDay(&tv);
+ return tv;
+}
+
+/**
+ return a timeval struct with the given elements
+*/
+struct timeval timeval_set(uint32_t secs, uint32_t usecs)
+{
+ struct timeval tv;
+ tv.tv_sec = secs;
+ tv.tv_usec = usecs;
+ return tv;
+}
+
+
+/**
+ return a timeval ofs microseconds after tv
+*/
+struct timeval timeval_add(const struct timeval *tv,
+ uint32_t secs, uint32_t usecs)
+{
+ struct timeval tv2 = *tv;
+ const unsigned int million = 1000000;
+ tv2.tv_sec += secs;
+ tv2.tv_usec += usecs;
+ tv2.tv_sec += tv2.tv_usec / million;
+ tv2.tv_usec = tv2.tv_usec % million;
+ return tv2;
+}
+
+/**
+ return the sum of two timeval structures
+*/
+struct timeval timeval_sum(const struct timeval *tv1,
+ const struct timeval *tv2)
+{
+ return timeval_add(tv1, tv2->tv_sec, tv2->tv_usec);
+}
+
+/**
+ return a timeval secs/usecs into the future
+*/
+struct timeval timeval_current_ofs(uint32_t secs, uint32_t usecs)
+{
+ struct timeval tv = timeval_current();
+ return timeval_add(&tv, secs, usecs);
+}
+
+/**
+ compare two timeval structures.
+ Return -1 if tv1 < tv2
+ Return 0 if tv1 == tv2
+ Return 1 if tv1 > tv2
+*/
+int timeval_compare(const struct timeval *tv1, const struct timeval *tv2)
+{
+ if (tv1->tv_sec > tv2->tv_sec) return 1;
+ if (tv1->tv_sec < tv2->tv_sec) return -1;
+ if (tv1->tv_usec > tv2->tv_usec) return 1;
+ if (tv1->tv_usec < tv2->tv_usec) return -1;
+ return 0;
+}
+
+/**
+ return True if a timer is in the past
+*/
+bool timeval_expired(const struct timeval *tv)
+{
+ struct timeval tv2 = timeval_current();
+ if (tv2.tv_sec > tv->tv_sec) return True;
+ if (tv2.tv_sec < tv->tv_sec) return False;
+ return (tv2.tv_usec >= tv->tv_usec);
+}
+
+/**
+ return the number of seconds elapsed between two times
+*/
+double timeval_elapsed2(const struct timeval *tv1, const struct timeval *tv2)
+{
+ return (tv2->tv_sec - tv1->tv_sec) +
+ (tv2->tv_usec - tv1->tv_usec)*1.0e-6;
+}
+
+/**
+ return the number of seconds elapsed since a given time
+*/
+double timeval_elapsed(const struct timeval *tv)
+{
+ struct timeval tv2 = timeval_current();
+ return timeval_elapsed2(tv, &tv2);
+}
+
+/**
+ return the lesser of two timevals
+*/
+struct timeval timeval_min(const struct timeval *tv1,
+ const struct timeval *tv2)
+{
+ if (tv1->tv_sec < tv2->tv_sec) return *tv1;
+ if (tv1->tv_sec > tv2->tv_sec) return *tv2;
+ if (tv1->tv_usec < tv2->tv_usec) return *tv1;
+ return *tv2;
+}
+
+/**
+ return the greater of two timevals
+*/
+struct timeval timeval_max(const struct timeval *tv1,
+ const struct timeval *tv2)
+{
+ if (tv1->tv_sec > tv2->tv_sec) return *tv1;
+ if (tv1->tv_sec < tv2->tv_sec) return *tv2;
+ if (tv1->tv_usec > tv2->tv_usec) return *tv1;
+ return *tv2;
+}
+
+/**
+ return the difference between two timevals as a timeval
+ if tv1 comes after tv2, then return a zero timeval
+ (this is *tv2 - *tv1)
+*/
+struct timeval timeval_until(const struct timeval *tv1,
+ const struct timeval *tv2)
+{
+ struct timeval t;
+ if (timeval_compare(tv1, tv2) >= 0) {
+ return timeval_zero();
+ }
+ t.tv_sec = tv2->tv_sec - tv1->tv_sec;
+ if (tv1->tv_usec > tv2->tv_usec) {
+ t.tv_sec--;
+ t.tv_usec = 1000000 - (tv1->tv_usec - tv2->tv_usec);
+ } else {
+ t.tv_usec = tv2->tv_usec - tv1->tv_usec;
+ }
+ return t;
+}
+
+
+/**
+ convert a timeval to a NTTIME
+*/
+NTTIME timeval_to_nttime(const struct timeval *tv)
+{
+ return 10*(tv->tv_usec +
+ ((TIME_FIXUP_CONSTANT_INT + (uint64_t)tv->tv_sec) * 1000000));
+}
+
+/**************************************************************
+ Handle conversions between time_t and uint32, taking care to
+ preserve the "special" values.
+**************************************************************/
+
+uint32 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
+ return (uint32)t;
+}
+
+time_t convert_uint32_to_time_t(uint32 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;
+}
+
+/*******************************************************************
+ Yield the difference between *A and *B, in seconds, ignoring leap seconds.
+********************************************************************/
+
+static int tm_diff(struct tm *a, struct tm *b)
+{
+ int ay = a->tm_year + (1900 - 1);
+ int by = b->tm_year + (1900 - 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);
+
+ return seconds;
+}
+
+int extra_time_offset=0;
+
+/*******************************************************************
+ Return the UTC offset in seconds west of UTC, or 0 if it cannot be determined.
+********************************************************************/
+
+int get_time_zone(time_t t)
+{
+ 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)+60*extra_time_offset;
+}
+
+/****************************************************************************
+ Check if NTTIME is 0.
+****************************************************************************/
+
+bool nt_time_is_zero(const NTTIME *nt)
+{
+ 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);
+}
+
+/*******************************************************************
+ Accessor function for the server time zone offset.
+ set_server_zone_offset() must have been called first.
+******************************************************************/
+
+static int server_zone_offset;
+
+int get_server_zone_offset(void)
+{
+ return server_zone_offset;
+}
+
+/*******************************************************************
+ Initialize the server time zone offset. Called when a client connects.
+******************************************************************/
+
+int set_server_zone_offset(time_t t)
+{
+ server_zone_offset = get_time_zone(t);
+ return server_zone_offset;
}
/****************************************************************************
Return the date and time as a string
****************************************************************************/
-char *timestring(BOOL hires)
+char *current_timestring(TALLOC_CTX *ctx, bool hires)
{
- static fstring TimeBuf;
+ fstring TimeBuf;
struct timeval tp;
time_t t;
struct tm *tm;
} else {
t = time(NULL);
}
- tm = LocalTime(&t);
+ tm = localtime(&t);
if (!tm) {
if (hires) {
slprintf(TimeBuf,
}
#else
if (hires) {
+ const char *asct = asctime(tm);
slprintf(TimeBuf,
sizeof(TimeBuf)-1,
"%s.%06ld",
- asctime(tm),
+ asct ? asct : "unknown",
(long)tp.tv_usec);
} else {
- fstrcpy(TimeBuf, asctime(tm));
+ const char *asct = asctime(tm);
+ fstrcpy(TimeBuf, asct ? asct : "unknown");
}
#endif
}
- return(TimeBuf);
+ return talloc_strdup(ctx, TimeBuf);
+}
+
+
+/*******************************************************************
+ Put a dos date into a buffer (time/date format).
+ This takes GMT time and puts local time in the buffer.
+********************************************************************/
+
+static void put_dos_date(char *buf,int offset,time_t unixdate, int zone_offset)
+{
+ uint32 x = make_dos_date(unixdate, zone_offset);
+ 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.
+********************************************************************/
+
+static void put_dos_date2(char *buf,int offset,time_t unixdate, int zone_offset)
+{
+ uint32 x = make_dos_date(unixdate, zone_offset);
+ x = ((x&0xFFFF)<<16) | ((x&0xFFFF0000)>>16);
+ SIVAL(buf,offset,x);
+}
+
+/*******************************************************************
+ 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)
+********************************************************************/
+
+static void put_dos_date3(char *buf,int offset,time_t unixdate, int zone_offset)
+{
+ if (!null_mtime(unixdate)) {
+ unixdate -= zone_offset;
+ }
+ SIVAL(buf,offset,unixdate);
+}
+
+
+/***************************************************************************
+ Server versions of the above functions.
+***************************************************************************/
+
+void srv_put_dos_date(char *buf,int offset,time_t unixdate)
+{
+ put_dos_date(buf, offset, unixdate, server_zone_offset);
+}
+
+void srv_put_dos_date2(char *buf,int offset, time_t unixdate)
+{
+ put_dos_date2(buf, offset, unixdate, server_zone_offset);
+}
+
+void srv_put_dos_date3(char *buf,int offset,time_t unixdate)
+{
+ put_dos_date3(buf, offset, unixdate, server_zone_offset);
+}
+
+/****************************************************************************
+ Take a Unix time and convert to an NTTIME structure and place in buffer
+ pointed to by p.
+****************************************************************************/
+
+void put_long_date_timespec(char *p, struct timespec ts)
+{
+ NTTIME nt;
+ unix_timespec_to_nt_time(&nt, ts);
+ SIVAL(p, 0, nt & 0xFFFFFFFF);
+ SIVAL(p, 4, nt >> 32);
+}
+
+void put_long_date(char *p, time_t t)
+{
+ struct timespec ts;
+ ts.tv_sec = t;
+ ts.tv_nsec = 0;
+ put_long_date_timespec(p, ts);
}
/****************************************************************************
structure.
****************************************************************************/
-time_t get_create_time(SMB_STRUCT_STAT *st,BOOL fake_dirs)
+time_t get_create_time(const SMB_STRUCT_STAT *st,bool fake_dirs)
{
time_t ret, ret1;
- if(S_ISDIR(st->st_mode) && fake_dirs)
+ 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)
+ if(ret1 != (time_t)0) {
return ret1;
+ }
/*
* One of ctime, mtime or atime was zero (probably atime).
return ret;
}
-/****************************************************************************
- Initialise an NTTIME to -1, which means "unknown" or "don't expire".
-****************************************************************************/
-
-void init_nt_time(NTTIME *nt)
+struct timespec get_create_timespec(const SMB_STRUCT_STAT *st,bool fake_dirs)
{
- nt->high = 0x7FFFFFFF;
- nt->low = 0xFFFFFFFF;
+ struct timespec ts;
+ ts.tv_sec = get_create_time(st, fake_dirs);
+ ts.tv_nsec = 0;
+ return ts;
}
/****************************************************************************
- Check if NTTIME is 0.
+ Get/Set all the possible time fields from a stat struct as a timespec.
****************************************************************************/
-BOOL nt_time_is_zero(NTTIME *nt)
+struct timespec get_atimespec(const SMB_STRUCT_STAT *pst)
{
- if(nt->high==0)
- return True;
- return False;
-}
+#if !defined(HAVE_STAT_HIRES_TIMESTAMPS)
+ struct timespec ret;
-/****************************************************************************
- Return a timeval difference in usec.
-****************************************************************************/
+ /* Old system - no ns timestamp. */
+ ret.tv_sec = pst->st_atime;
+ ret.tv_nsec = 0;
+ return ret;
+#else
+#if defined(HAVE_STAT_ST_ATIM)
+ return pst->st_atim;
+#elif defined(HAVE_STAT_ST_ATIMENSEC)
+ struct timespec ret;
+ ret.tv_sec = pst->st_atime;
+ ret.tv_nsec = pst->st_atimensec;
+ return ret;
+#else
+#error CONFIGURE_ERROR_IN_DETECTING_TIMESPEC_IN_STAT
+#endif
+#endif
+}
-SMB_BIG_INT usec_time_diff(struct timeval *larget, struct timeval *smallt)
+void set_atimespec(SMB_STRUCT_STAT *pst, struct timespec ts)
{
- SMB_BIG_INT sec_diff = larget->tv_sec - smallt->tv_sec;
- return (sec_diff * 1000000) + (SMB_BIG_INT)(larget->tv_usec - smallt->tv_usec);
+#if !defined(HAVE_STAT_HIRES_TIMESTAMPS)
+ /* Old system - no ns timestamp. */
+ pst->st_atime = ts.tv_sec;
+#else
+#if defined(HAVE_STAT_ST_ATIM)
+ pst->st_atim = ts;
+#elif defined(HAVE_STAT_ST_ATIMENSEC)
+ pst->st_atime = ts.tv_sec;
+ pst->st_atimensec = ts.tv_nsec
+#else
+#error CONFIGURE_ERROR_IN_DETECTING_TIMESPEC_IN_STAT
+#endif
+#endif
+}
+
+struct timespec get_mtimespec(const SMB_STRUCT_STAT *pst)
+{
+#if !defined(HAVE_STAT_HIRES_TIMESTAMPS)
+ struct timespec ret;
+
+ /* Old system - no ns timestamp. */
+ ret.tv_sec = pst->st_mtime;
+ ret.tv_nsec = 0;
+ return ret;
+#else
+#if defined(HAVE_STAT_ST_MTIM)
+ return pst->st_mtim;
+#elif defined(HAVE_STAT_ST_MTIMENSEC)
+ struct timespec ret;
+ ret.tv_sec = pst->st_mtime;
+ ret.tv_nsec = pst->st_mtimensec;
+ return ret;
+#else
+#error CONFIGURE_ERROR_IN_DETECTING_TIMESPEC_IN_STAT
+#endif
+#endif
+}
+
+void set_mtimespec(SMB_STRUCT_STAT *pst, struct timespec ts)
+{
+#if !defined(HAVE_STAT_HIRES_TIMESTAMPS)
+ /* Old system - no ns timestamp. */
+ pst->st_mtime = ts.tv_sec;
+#else
+#if defined(HAVE_STAT_ST_MTIM)
+ pst->st_mtim = ts;
+#elif defined(HAVE_STAT_ST_MTIMENSEC)
+ pst->st_mtime = ts.tv_sec;
+ pst->st_mtimensec = ts.tv_nsec
+#else
+#error CONFIGURE_ERROR_IN_DETECTING_TIMESPEC_IN_STAT
+#endif
+#endif
+}
+
+struct timespec get_ctimespec(const SMB_STRUCT_STAT *pst)
+{
+#if !defined(HAVE_STAT_HIRES_TIMESTAMPS)
+ struct timespec ret;
+
+ /* Old system - no ns timestamp. */
+ ret.tv_sec = pst->st_ctime;
+ ret.tv_nsec = 0;
+ return ret;
+#else
+#if defined(HAVE_STAT_ST_CTIM)
+ return pst->st_ctim;
+#elif defined(HAVE_STAT_ST_CTIMENSEC)
+ struct timespec ret;
+ ret.tv_sec = pst->st_ctime;
+ ret.tv_nsec = pst->st_ctimensec;
+ return ret;
+#else
+#error CONFIGURE_ERROR_IN_DETECTING_TIMESPEC_IN_STAT
+#endif
+#endif
+}
+
+void set_ctimespec(SMB_STRUCT_STAT *pst, struct timespec ts)
+{
+#if !defined(HAVE_STAT_HIRES_TIMESTAMPS)
+ /* Old system - no ns timestamp. */
+ pst->st_ctime = ts.tv_sec;
+#else
+#if defined(HAVE_STAT_ST_CTIM)
+ pst->st_ctim = ts;
+#elif defined(HAVE_STAT_ST_CTIMENSEC)
+ pst->st_ctime = ts.tv_sec;
+ pst->st_ctimensec = ts.tv_nsec
+#else
+#error CONFIGURE_ERROR_IN_DETECTING_TIMESPEC_IN_STAT
+#endif
+#endif
+}
+
+void dos_filetime_timespec(struct timespec *tsp)
+{
+ tsp->tv_sec &= ~1;
+ tsp->tv_nsec = 0;
+}
+
+/*******************************************************************
+ 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)
+{
+ uint32 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);
+}
+
+/*******************************************************************
+ Like make_unix_date() but the words are reversed.
+********************************************************************/
+
+static time_t make_unix_date2(const void *date_ptr, int zone_offset)
+{
+ uint32 x,x2;
+
+ 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));
+}
+
+/*******************************************************************
+ Create a unix GMT date from a dos date in 32 bit "unix like" format
+ these generally arrive as localtimes, with corresponding DST.
+******************************************************************/
+
+static time_t make_unix_date3(const void *date_ptr, int zone_offset)
+{
+ time_t t = (time_t)IVAL(date_ptr,0);
+ if (!null_mtime(t)) {
+ t += zone_offset;
+ }
+ return(t);
+}
+
+time_t srv_make_unix_date(const void *date_ptr)
+{
+ return make_unix_date(date_ptr, server_zone_offset);
+}
+
+time_t srv_make_unix_date2(const void *date_ptr)
+{
+ 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);
+}
+
+time_t convert_timespec_to_time_t(struct timespec ts)
+{
+ /* 1 ns == 1,000,000,000 - one thousand millionths of a second.
+ increment if it's greater than 500 millionth of a second. */
+ if (ts.tv_nsec > 500000000) {
+ return ts.tv_sec + 1;
+ }
+ return ts.tv_sec;
+}
+
+struct timespec convert_time_t_to_timespec(time_t t)
+{
+ struct timespec ts;
+ ts.tv_sec = t;
+ ts.tv_nsec = 0;
+ return ts;
+}
+
+/****************************************************************************
+ Convert a normalized timeval to a timespec.
+****************************************************************************/
+
+struct timespec convert_timeval_to_timespec(const struct timeval tv)
+{
+ struct timespec ts;
+ ts.tv_sec = tv.tv_sec;
+ ts.tv_nsec = tv.tv_usec * 1000;
+ return ts;
+}
+
+/****************************************************************************
+ Convert a normalized timespec to a timeval.
+****************************************************************************/
+
+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;
+}
+
+/****************************************************************************
+ Return the lesser of two timespecs.
+****************************************************************************/
+
+struct timespec timespec_min(const struct timespec *ts1,
+ const struct timespec *ts2)
+{
+ 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;
+}
+
+/****************************************************************************
+ compare two timespec structures.
+ Return -1 if ts1 < ts2
+ Return 0 if ts1 == ts2
+ Return 1 if ts1 > ts2
+****************************************************************************/
+
+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;
+}
+
+/****************************************************************************
+ 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.
+****************************************************************************/
+
+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)
+{
+ put_dos_date(buf, offset, unixdate, cli->serverzone);
+}
+
+void cli_put_dos_date2(struct cli_state *cli, char *buf, int offset, time_t unixdate)
+{
+ put_dos_date2(buf, offset, unixdate, cli->serverzone);
+}
+
+void cli_put_dos_date3(struct cli_state *cli, char *buf, int offset, time_t unixdate)
+{
+ put_dos_date3(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)
+{
+ return make_unix_date3(date_ptr, cli->serverzone);
+}
+
+/* Large integer version. */
+struct timespec nt_time_to_unix_timespec(NTTIME *nt)
+{
+ int64 d;
+ struct timespec ret;
+
+ if (*nt == 0 || *nt == (int64)-1) {
+ ret.tv_sec = 0;
+ ret.tv_nsec = 0;
+ return ret;
+ }
+
+ d = (int64)*nt;
+ /* d is now in 100ns units, since jan 1st 1601".
+ Save off the ns fraction. */
+
+ /*
+ * Take the last seven decimal digits and multiply by 100.
+ * to convert from 100ns units to 1ns units.
+ */
+ ret.tv_nsec = (long) ((d % (1000 * 1000 * 10)) * 100);
+
+ /* Convert to seconds */
+ d /= 1000*1000*10;
+
+ /* Now adjust by 369 years to make the secs since 1970 */
+ d -= TIME_FIXUP_CONSTANT_INT;
+
+ if (d <= (int64)TIME_T_MIN) {
+ ret.tv_sec = TIME_T_MIN;
+ ret.tv_nsec = 0;
+ return ret;
+ }
+
+ if (d >= (int64)TIME_T_MAX) {
+ ret.tv_sec = TIME_T_MAX;
+ ret.tv_nsec = 0;
+ return ret;
+ }
+
+ ret.tv_sec = (time_t)d;
+ return ret;
+}
+/****************************************************************************
+ Check if two NTTIMEs are the same.
+****************************************************************************/
+
+bool nt_time_equals(const NTTIME *nt1, const NTTIME *nt2)
+{
+ return (*nt1 == *nt2);
+}
+
+/*******************************************************************
+ Re-read the smb serverzone value.
+******************************************************************/
+
+static struct timeval start_time_hires;
+
+void TimeInit(void)
+{
+ set_server_zone_offset(time(NULL));
+
+ DEBUG(4,("TimeInit: Serverzone is %d\n", server_zone_offset));
+
+ /* 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 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;
+ }
+}
+
+/****************************************************************************
+ Convert a NTTIME structure to a time_t.
+ It's originally in "100ns units".
+
+ This is an absolute version of the one above.
+ By absolute I mean, it doesn't adjust from 1/1/1601 to 1/1/1970
+ if the NTTIME was 5 seconds, the time_t is 5 seconds. JFM
+****************************************************************************/
+
+time_t nt_time_to_unix_abs(const NTTIME *nt)
+{
+ uint64 d;
+
+ if (*nt == 0) {
+ return (time_t)0;
+ }
+
+ if (*nt == (uint64)-1) {
+ return (time_t)-1;
+ }
+
+ if (*nt == NTTIME_INFINITY) {
+ return (time_t)-1;
+ }
+
+ /* reverse the time */
+ /* it's a negative value, turn it to positive */
+ d=~*nt;
+
+ d += 1000*1000*10/2;
+ d /= 1000*1000*10;
+
+ if (!(TIME_T_MIN <= ((time_t)d) && ((time_t)d) <= TIME_T_MAX)) {
+ return (time_t)0;
+ }
+
+ return (time_t)d;
+}
+
+/****************************************************************************
+ Put a 8 byte filetime from a struct timespec. Uses GMT.
+****************************************************************************/
+
+void unix_timespec_to_nt_time(NTTIME *nt, struct timespec ts)
+{
+ uint64 d;
+
+ if (ts.tv_sec ==0 && ts.tv_nsec == 0) {
+ *nt = 0;
+ return;
+ }
+ if (ts.tv_sec == TIME_T_MAX) {
+ *nt = 0x7fffffffffffffffLL;
+ return;
+ }
+ if (ts.tv_sec == (time_t)-1) {
+ *nt = (uint64)-1;
+ return;
+ }
+
+ d = ts.tv_sec;
+ d += TIME_FIXUP_CONSTANT_INT;
+ d *= 1000*1000*10;
+ /* d is now in 100ns units. */
+ d += (ts.tv_nsec / 100);
+
+ *nt = d;
+}
+
+/****************************************************************************
+ 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 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 = 0;
+ return;
+ }
+
+ if (t == TIME_T_MAX) {
+ *nt = 0x7fffffffffffffffLL;
+ return;
+ }
+
+ if (t == (time_t)-1) {
+ /* that's what NT uses for infinite */
+ *nt = NTTIME_INFINITY;
+ return;
+ }
+
+ d = (double)(t);
+ d *= 1.0e7;
+
+ *nt = (NTTIME)d;
+
+ /* convert to a negative value */
+ *nt=~*nt;
+}
+
+
+/****************************************************************************
+ Check if it's a null mtime.
+****************************************************************************/
+
+bool null_mtime(time_t mtime)
+{
+ if (mtime == 0 || mtime == (time_t)0xFFFFFFFF || mtime == (time_t)-1)
+ return(True);
+ return(False);
+}
+
+/****************************************************************************
+ Utility function that always returns a const string even if localtime
+ and asctime fail.
+****************************************************************************/
+
+const char *time_to_asc(const time_t t)
+{
+ const char *asct;
+ struct tm *lt = localtime(&t);
+
+ if (!lt) {
+ return "unknown time";
+ }
+
+ asct = asctime(lt);
+ if (!asct) {
+ return "unknown time";
+ }
+ return asct;
+}
+
+const char *display_time(NTTIME nttime)
+{
+ float high;
+ float low;
+ int sec;
+ int days, hours, mins, secs;
+
+ if (nttime==0)
+ return "Now";
+
+ if (nttime==NTTIME_INFINITY)
+ return "Never";
+
+ high = 65536;
+ high = high/10000;
+ high = high*65536;
+ high = high/1000;
+ high = high * (~(nttime >> 32));
+
+ low = ~(nttime & 0xFFFFFFFF);
+ low = low/(1000*1000*10);
+
+ sec=(int)(high+low);
+
+ 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);
+
+ return talloc_asprintf(talloc_tos(), "%u days, %u hours, %u minutes, "
+ "%u seconds", days, hours, mins, secs);
+}
+
+bool nt_time_is_set(const NTTIME *nt)
+{
+ if (*nt == 0x7FFFFFFFFFFFFFFFLL) {
+ return False;
+ }
+
+ if (*nt == NTTIME_INFINITY) {
+ return False;
+ }
+
+ return True;
}
git.samba.org / samba.git / blobdiff