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author | Jelmer Vernooij <jelmer@samba.org> | 2008-10-21 14:51:13 +0200 |
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committer | Jelmer Vernooij <jelmer@samba.org> | 2008-10-21 14:51:13 +0200 |
commit | 5209a846a9157e649fcdcb561f7eaf19c8c0e465 (patch) | |
tree | b0a7e52b5646c8eec182dbc391e7934b6804488c /source3/lib/time.c | |
parent | 625359b2e266105022309df8985720108ecd6f67 (diff) | |
parent | 2ee8d29d22bcb1c350ab59d71b0aee548489bc9c (diff) | |
download | samba-5209a846a9157e649fcdcb561f7eaf19c8c0e465.tar.gz samba-5209a846a9157e649fcdcb561f7eaf19c8c0e465.tar.bz2 samba-5209a846a9157e649fcdcb561f7eaf19c8c0e465.zip |
Merge branch 'master' of ssh://git.samba.org/data/git/samba into regsrv
Conflicts:
source4/lib/registry/ldb.c
source4/rpc_server/winreg/rpc_winreg.c
Diffstat (limited to 'source3/lib/time.c')
-rw-r--r-- | source3/lib/time.c | 558 |
1 files changed, 0 insertions, 558 deletions
diff --git a/source3/lib/time.c b/source3/lib/time.c index 8cefef6e23..c4aa7d01b3 100644 --- a/source3/lib/time.c +++ b/source3/lib/time.c @@ -38,112 +38,12 @@ #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 ********************************************************************/ @@ -193,183 +93,6 @@ static uint32_t make_dos_date(time_t unixdate, int zone_offset) } /** -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) @@ -377,190 +100,6 @@ 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. @@ -592,44 +131,8 @@ time_t convert_uint32_to_time_t(uint32 u) 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. ****************************************************************************/ @@ -1084,24 +587,6 @@ 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. ****************************************************************************/ @@ -1222,49 +707,6 @@ 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. ****************************************************************************/ |