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samba-mirror/source3/lib/time.c
Jeremy Allison 30191d1a57 RIP BOOL. Convert BOOL -> bool. I found a few interesting
bugs in various places whilst doing this (places that assumed
BOOL == int). I also need to fix the Samba4 pidl generation
(next checkin).
Jeremy.
(This used to be commit f35a266b3c)
2007-10-18 17:40:25 -07:00

1469 lines
36 KiB
C

/*
Unix SMB/CIFS implementation.
time handling functions
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 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
/**
* @file
* @brief time handling functions
*/
#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))
#endif
#ifndef TIME_T_MAX
#define TIME_T_MAX (~ (time_t) 0 - TIME_T_MIN)
#endif
#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)
{
#ifdef HAVE_GETTIMEOFDAY_TZ
gettimeofday(tval,NULL);
#else
gettimeofday(tval);
#endif
}
#if (SIZEOF_LONG == 8)
#define TIME_FIXUP_CONSTANT_INT 11644473600L
#elif (SIZEOF_LONG_LONG == 8)
#define TIME_FIXUP_CONSTANT_INT 11644473600LL
#endif
/****************************************************************************
Interpret an 8 byte "filetime" structure to a time_t
It's originally in "100ns units since jan 1st 1601"
An 8 byte value of 0xffffffffffffffff will be returned as a timespec of
tv_sec = 0
tv_nsec = 0;
Returns GMT.
****************************************************************************/
time_t nt_time_to_unix(NTTIME nt)
{
return convert_timespec_to_time_t(nt_time_to_unix_timespec(&nt));
}
/****************************************************************************
Put a 8 byte filetime from a time_t. Uses GMT.
****************************************************************************/
void unix_to_nt_time(NTTIME *nt, time_t t)
{
uint64_t t2;
if (t == (time_t)-1) {
*nt = (NTTIME)-1LL;
return;
}
if (t == TIME_T_MAX) {
*nt = 0x7fffffffffffffffLL;
return;
}
if (t == 0) {
*nt = 0;
return;
}
t2 = t;
t2 += TIME_FIXUP_CONSTANT_INT;
t2 *= 1000*1000*10;
*nt = t2;
}
/****************************************************************************
Check if it's a null unix time.
****************************************************************************/
bool null_time(time_t t)
{
return t == 0 ||
t == (time_t)0xFFFFFFFF ||
t == (time_t)-1;
}
/****************************************************************************
Check if it's a null NTTIME.
****************************************************************************/
bool null_nttime(NTTIME t)
{
return t == 0 || t == (NTTIME)-1;
}
/****************************************************************************
Check if it's a null timespec.
****************************************************************************/
bool null_timespec(struct timespec ts)
{
return ts.tv_sec == 0 ||
ts.tv_sec == (time_t)0xFFFFFFFF ||
ts.tv_sec == (time_t)-1;
}
/*******************************************************************
create a 16 bit dos packed date
********************************************************************/
static uint16_t make_dos_date1(struct tm *t)
{
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;
}
/*******************************************************************
create a 16 bit dos packed time
********************************************************************/
static uint16_t make_dos_time1(struct tm *t)
{
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;
}
/*******************************************************************
create a 32 bit dos packed date/time from some parameters
This takes a GMT time and returns a packed localtime structure
********************************************************************/
static uint32_t make_dos_date(time_t unixdate, int zone_offset)
{
struct tm *t;
uint32_t ret=0;
if (unixdate == 0) {
return 0;
}
unixdate -= zone_offset;
t = gmtime(&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 push_dos_date(uint8_t *buf, int offset, time_t unixdate, int zone_offset)
{
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 push_dos_date2(uint8_t *buf,int offset,time_t unixdate, int zone_offset)
{
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 push_dos_date3(uint8_t *buf,int offset,time_t unixdate, int zone_offset)
{
if (!null_time(unixdate)) {
unixdate -= zone_offset;
}
SIVAL(buf,offset,unixdate);
}
/*******************************************************************
interpret a 32 bit dos packed date/time to some parameters
********************************************************************/
static void interpret_dos_date(uint32_t date,int *year,int *month,int *day,int *hour,int *minute,int *second)
{
uint32_t p0,p1,p2,p3;
p0=date&0xFF; p1=((date&0xFF00)>>8)&0xFF;
p2=((date&0xFF0000)>>16)&0xFF; p3=((date&0xFF000000)>>24)&0xFF;
*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;
}
/**
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_t dos_date=0;
struct tm t;
time_t ret;
dos_date = IVAL(date_ptr,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_isdst = -1;
ret = timegm(&t);
ret += zone_offset;
return ret;
}
/**
like make_unix_date() but the words are reversed
**/
time_t pull_dos_date2(const uint8_t *date_ptr, int zone_offset)
{
uint32_t x,x2;
x = IVAL(date_ptr,0);
x2 = ((x&0xFFFF)<<16) | ((x&0xFFFF0000)>>16);
SIVAL(&x,0,x2);
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 pull_dos_date3(const uint8_t *date_ptr, int zone_offset)
{
time_t t = (time_t)IVAL(date_ptr,0);
if (!null_time(t)) {
t += zone_offset;
}
return t;
}
/***************************************************************************
Return a HTTP/1.0 time string.
***************************************************************************/
char *http_timestring(time_t t)
{
fstring buf;
struct tm *tm = localtime(&t);
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
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 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 *current_timestring(bool hires)
{
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);
}
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(talloc_tos(), 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);
}
/****************************************************************************
Return the best approximation to a 'create time' under UNIX from a stat
structure.
****************************************************************************/
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) {
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;
}
struct timespec get_create_timespec(const SMB_STRUCT_STAT *st,bool fake_dirs)
{
struct timespec ts;
ts.tv_sec = get_create_time(st, fake_dirs);
ts.tv_nsec = 0;
return ts;
}
/****************************************************************************
Get/Set all the possible time fields from a stat struct as a timespec.
****************************************************************************/
struct timespec get_atimespec(const SMB_STRUCT_STAT *pst)
{
#if !defined(HAVE_STAT_HIRES_TIMESTAMPS)
struct timespec ret;
/* 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
}
void set_atimespec(SMB_STRUCT_STAT *pst, struct timespec ts)
{
#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, void *date_ptr)
{
return make_unix_date(date_ptr, cli->serverzone);
}
time_t cli_make_unix_date2(struct cli_state *cli, void *date_ptr)
{
return make_unix_date2(date_ptr, cli->serverzone);
}
time_t cli_make_unix_date3(struct cli_state *cli, 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. */
ret.tv_nsec = (long) ((d % 100) * 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 = 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=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;
}