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Diffstat (limited to 'source4/lib/util/time.c')
| -rw-r--r-- | source4/lib/util/time.c | 622 |
1 files changed, 0 insertions, 622 deletions
diff --git a/source4/lib/util/time.c b/source4/lib/util/time.c deleted file mode 100644 index 978d73cc0a..0000000000 --- a/source4/lib/util/time.c +++ /dev/null @@ -1,622 +0,0 @@ -/* - Unix SMB/CIFS implementation. - time handling functions - - Copyright (C) Andrew Tridgell 1992-2004 - Copyright (C) Stefan (metze) Metzmacher 2002 - - 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" -#include "system/time.h" - -/** - * @file - * @brief time handling functions - */ - -#ifndef TIME_T_MIN -/* we use 0 here, because (time_t)-1 means error */ -#define TIME_T_MIN 0 -#endif - -/* - * we use the INT32_MAX here as on 64 bit systems, - * gmtime() fails with INT64_MAX - */ - -#ifndef TIME_T_MAX -#define TIME_T_MAX MIN(INT32_MAX,_TYPE_MAXIMUM(time_t)) -#endif - -/** - External access to time_t_min and time_t_max. -**/ -_PUBLIC_ time_t get_time_t_max(void) -{ - return TIME_T_MAX; -} - -/** -a gettimeofday wrapper -**/ -_PUBLIC_ void GetTimeOfDay(struct timeval *tval) -{ -#ifdef HAVE_GETTIMEOFDAY_TZ - gettimeofday(tval,NULL); -#else - gettimeofday(tval); -#endif -} - - -#define TIME_FIXUP_CONSTANT 11644473600LL - -/** -interpret an 8 byte "filetime" structure to a time_t -It's originally in "100ns units since jan 1st 1601" -**/ -_PUBLIC_ time_t nt_time_to_unix(NTTIME nt) -{ - if (nt == 0) { - return 0; - } - if (nt == -1LL) { - return (time_t)-1; - } - nt += 1000*1000*10/2; - nt /= 1000*1000*10; - nt -= TIME_FIXUP_CONSTANT; - - if (TIME_T_MIN > nt || nt > TIME_T_MAX) { - return 0; - } - - return (time_t)nt; -} - - -/** -put a 8 byte filetime from a time_t -This takes GMT as input -**/ -_PUBLIC_ void unix_to_nt_time(NTTIME *nt, time_t t) -{ - uint64_t t2; - - if (t == (time_t)-1) { - *nt = (NTTIME)-1LL; - return; - } - if (t == 0) { - *nt = 0; - return; - } - - t2 = t; - t2 += TIME_FIXUP_CONSTANT; - t2 *= 1000*1000*10; - - *nt = t2; -} - - -/** -check if it's a null unix time -**/ -_PUBLIC_ bool null_time(time_t t) -{ - return t == 0 || - t == (time_t)0xFFFFFFFF || - t == (time_t)-1; -} - - -/** -check if it's a null NTTIME -**/ -_PUBLIC_ bool null_nttime(NTTIME t) -{ - return t == 0 || t == (NTTIME)-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 -**/ -_PUBLIC_ 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 -**/ -_PUBLIC_ 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) -**/ -_PUBLIC_ 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) -**/ -_PUBLIC_ 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 -**/ -_PUBLIC_ 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 -**/ -_PUBLIC_ 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 -**/ -_PUBLIC_ char *http_timestring(TALLOC_CTX *mem_ctx, time_t t) -{ - char *buf; - char tempTime[60]; - struct tm *tm = localtime(&t); - - if (!tm) { - return talloc_asprintf(mem_ctx,"%ld seconds since the Epoch",(long)t); - } - -#ifndef HAVE_STRFTIME - buf = talloc_strdup(mem_ctx, asctime(tm)); - if (buf[strlen(buf)-1] == '\n') { - buf[strlen(buf)-1] = 0; - } -#else - strftime(tempTime, sizeof(tempTime)-1, "%a, %d %b %Y %H:%M:%S %Z", tm); - buf = talloc_strdup(mem_ctx, tempTime); -#endif /* !HAVE_STRFTIME */ - - return buf; -} - -/** - Return the date and time as a string -**/ -_PUBLIC_ 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 -*/ -_PUBLIC_ 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); -} - - -/** - put a NTTIME into a packet -*/ -_PUBLIC_ void push_nttime(uint8_t *base, uint16_t offset, NTTIME t) -{ - SBVAL(base, offset, t); -} - -/** - pull a NTTIME from a packet -*/ -_PUBLIC_ NTTIME pull_nttime(uint8_t *base, uint16_t offset) -{ - NTTIME ret = BVAL(base, offset); - return ret; -} - -/** - return (tv1 - tv2) in microseconds -*/ -_PUBLIC_ int64_t usec_time_diff(const struct timeval *tv1, const 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 -*/ -_PUBLIC_ 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 -*/ -_PUBLIC_ bool timeval_is_zero(const struct timeval *tv) -{ - return tv->tv_sec == 0 && tv->tv_usec == 0; -} - -/** - return a timeval for the current time -*/ -_PUBLIC_ struct timeval timeval_current(void) -{ - struct timeval tv; - GetTimeOfDay(&tv); - return tv; -} - -/** - return a timeval struct with the given elements -*/ -_PUBLIC_ 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 -*/ -_PUBLIC_ 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 -*/ -_PUBLIC_ 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 -*/ -_PUBLIC_ 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 -*/ -_PUBLIC_ 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 -*/ -_PUBLIC_ 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 -*/ -_PUBLIC_ double timeval_elapsed(const struct timeval *tv) -{ - struct timeval tv2 = timeval_current(); - return timeval_elapsed2(tv, &tv2); -} - -/** - return the lesser of two timevals -*/ -_PUBLIC_ 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 -*/ -_PUBLIC_ 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) -*/ -_PUBLIC_ 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 -*/ -_PUBLIC_ NTTIME timeval_to_nttime(const struct timeval *tv) -{ - return 10*(tv->tv_usec + - ((TIME_FIXUP_CONSTANT + (uint64_t)tv->tv_sec) * 1000000)); -} - -/** - convert a NTTIME to a timeval -*/ -_PUBLIC_ void nttime_to_timeval(struct timeval *tv, NTTIME t) -{ - if (tv == NULL) return; - - t += 10/2; - t /= 10; - t -= TIME_FIXUP_CONSTANT*1000*1000; - - tv->tv_sec = t / 1000000; - - if (TIME_T_MIN > tv->tv_sec || tv->tv_sec > TIME_T_MAX) { - tv->tv_sec = 0; - tv->tv_usec = 0; - return; - } - - tv->tv_usec = t - tv->tv_sec*1000000; -} - -/******************************************************************* -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; -} - -/** - return the UTC offset in seconds west of UTC, or 0 if it cannot be determined - */ -_PUBLIC_ 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); -} - -/** - check if 2 NTTIMEs are equal. -*/ -bool nt_time_equal(NTTIME *t1, NTTIME *t2) -{ - return *t1 == *t2; -} |