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66f8070dd3
metze Autobuild-User: Stefan Metzmacher <metze@samba.org> Autobuild-Date: Fri Sep 23 00:15:31 CEST 2011 on sn-devel-104
938 lines
21 KiB
C
938 lines
21 KiB
C
/*
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Unix SMB/CIFS implementation.
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time handling functions
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Copyright (C) Andrew Tridgell 1992-2004
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Copyright (C) Stefan (metze) Metzmacher 2002
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Copyright (C) Jeremy Allison 2007
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Copyright (C) Andrew Bartlett 2011
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "system/time.h"
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/**
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* @file
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* @brief time handling functions
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*/
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#if (SIZEOF_LONG == 8)
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#define TIME_FIXUP_CONSTANT_INT 11644473600L
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#elif (SIZEOF_LONG_LONG == 8)
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#define TIME_FIXUP_CONSTANT_INT 11644473600LL
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#endif
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/**
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External access to time_t_min and time_t_max.
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**/
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_PUBLIC_ time_t get_time_t_max(void)
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{
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return TIME_T_MAX;
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}
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/**
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a gettimeofday wrapper
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**/
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_PUBLIC_ void GetTimeOfDay(struct timeval *tval)
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{
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#ifdef HAVE_GETTIMEOFDAY_TZ
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gettimeofday(tval,NULL);
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#else
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gettimeofday(tval);
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#endif
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}
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/**
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a wrapper to preferably get the monotonic time
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**/
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_PUBLIC_ void clock_gettime_mono(struct timespec *tp)
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{
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if (clock_gettime(CUSTOM_CLOCK_MONOTONIC,tp) != 0) {
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clock_gettime(CLOCK_REALTIME,tp);
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}
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}
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/**
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a wrapper to preferably get the monotonic time in seconds
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as this is only second resolution we can use the cached
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(and much faster) COARSE clock variant
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**/
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_PUBLIC_ time_t time_mono(time_t *t)
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{
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struct timespec tp;
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int rc = -1;
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#ifdef CLOCK_MONOTONIC_COARSE
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rc = clock_gettime(CLOCK_MONOTONIC_COARSE,&tp);
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#endif
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if (rc != 0) {
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clock_gettime_mono(&tp);
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}
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if (t != NULL) {
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*t = tp.tv_sec;
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}
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return tp.tv_sec;
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}
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#define TIME_FIXUP_CONSTANT 11644473600LL
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time_t convert_timespec_to_time_t(struct timespec ts)
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{
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/* Ensure tv_nsec is less than 1sec. */
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while (ts.tv_nsec > 1000000000) {
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ts.tv_sec += 1;
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ts.tv_nsec -= 1000000000;
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}
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/* 1 ns == 1,000,000,000 - one thousand millionths of a second.
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increment if it's greater than 500 millionth of a second. */
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if (ts.tv_nsec > 500000000) {
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return ts.tv_sec + 1;
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}
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return ts.tv_sec;
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}
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struct timespec convert_time_t_to_timespec(time_t t)
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{
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struct timespec ts;
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ts.tv_sec = t;
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ts.tv_nsec = 0;
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return ts;
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}
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/**
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Interpret an 8 byte "filetime" structure to a time_t
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It's originally in "100ns units since jan 1st 1601"
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An 8 byte value of 0xffffffffffffffff will be returned as a timespec of
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tv_sec = 0
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tv_nsec = 0;
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Returns GMT.
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**/
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time_t nt_time_to_unix(NTTIME nt)
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{
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return convert_timespec_to_time_t(nt_time_to_unix_timespec(&nt));
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}
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/**
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put a 8 byte filetime from a time_t
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This takes GMT as input
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**/
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_PUBLIC_ void unix_to_nt_time(NTTIME *nt, time_t t)
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{
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uint64_t t2;
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if (t == (time_t)-1) {
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*nt = (NTTIME)-1LL;
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return;
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}
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if (t == TIME_T_MAX) {
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*nt = 0x7fffffffffffffffLL;
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return;
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}
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if (t == 0) {
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*nt = 0;
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return;
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}
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t2 = t;
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t2 += TIME_FIXUP_CONSTANT_INT;
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t2 *= 1000*1000*10;
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*nt = t2;
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}
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/**
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check if it's a null unix time
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**/
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_PUBLIC_ bool null_time(time_t t)
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{
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return t == 0 ||
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t == (time_t)0xFFFFFFFF ||
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t == (time_t)-1;
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}
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/**
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check if it's a null NTTIME
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**/
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_PUBLIC_ bool null_nttime(NTTIME t)
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{
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return t == 0 || t == (NTTIME)-1;
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}
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/*******************************************************************
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create a 16 bit dos packed date
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********************************************************************/
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static uint16_t make_dos_date1(struct tm *t)
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{
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uint16_t ret=0;
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ret = (((unsigned int)(t->tm_mon+1)) >> 3) | ((t->tm_year-80) << 1);
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ret = ((ret&0xFF)<<8) | (t->tm_mday | (((t->tm_mon+1) & 0x7) << 5));
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return ret;
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}
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/*******************************************************************
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create a 16 bit dos packed time
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********************************************************************/
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static uint16_t make_dos_time1(struct tm *t)
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{
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uint16_t ret=0;
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ret = ((((unsigned int)t->tm_min >> 3)&0x7) | (((unsigned int)t->tm_hour) << 3));
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ret = ((ret&0xFF)<<8) | ((t->tm_sec/2) | ((t->tm_min & 0x7) << 5));
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return ret;
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}
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/*******************************************************************
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create a 32 bit dos packed date/time from some parameters
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This takes a GMT time and returns a packed localtime structure
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********************************************************************/
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static uint32_t make_dos_date(time_t unixdate, int zone_offset)
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{
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struct tm *t;
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uint32_t ret=0;
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if (unixdate == 0) {
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return 0;
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}
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unixdate -= zone_offset;
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t = gmtime(&unixdate);
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if (!t) {
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return 0xFFFFFFFF;
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}
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ret = make_dos_date1(t);
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ret = ((ret&0xFFFF)<<16) | make_dos_time1(t);
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return ret;
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}
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/**
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put a dos date into a buffer (time/date format)
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This takes GMT time and puts local time in the buffer
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**/
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_PUBLIC_ void push_dos_date(uint8_t *buf, int offset, time_t unixdate, int zone_offset)
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{
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uint32_t x = make_dos_date(unixdate, zone_offset);
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SIVAL(buf,offset,x);
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}
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/**
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put a dos date into a buffer (date/time format)
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This takes GMT time and puts local time in the buffer
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**/
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_PUBLIC_ void push_dos_date2(uint8_t *buf,int offset,time_t unixdate, int zone_offset)
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{
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uint32_t x;
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x = make_dos_date(unixdate, zone_offset);
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x = ((x&0xFFFF)<<16) | ((x&0xFFFF0000)>>16);
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SIVAL(buf,offset,x);
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}
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/**
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put a dos 32 bit "unix like" date into a buffer. This routine takes
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GMT and converts it to LOCAL time before putting it (most SMBs assume
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localtime for this sort of date)
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**/
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_PUBLIC_ void push_dos_date3(uint8_t *buf,int offset,time_t unixdate, int zone_offset)
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{
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if (!null_time(unixdate)) {
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unixdate -= zone_offset;
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}
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SIVAL(buf,offset,unixdate);
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}
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/*******************************************************************
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interpret a 32 bit dos packed date/time to some parameters
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********************************************************************/
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void interpret_dos_date(uint32_t date,int *year,int *month,int *day,int *hour,int *minute,int *second)
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{
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uint32_t p0,p1,p2,p3;
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p0=date&0xFF; p1=((date&0xFF00)>>8)&0xFF;
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p2=((date&0xFF0000)>>16)&0xFF; p3=((date&0xFF000000)>>24)&0xFF;
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*second = 2*(p0 & 0x1F);
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*minute = ((p0>>5)&0xFF) + ((p1&0x7)<<3);
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*hour = (p1>>3)&0xFF;
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*day = (p2&0x1F);
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*month = ((p2>>5)&0xFF) + ((p3&0x1)<<3) - 1;
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*year = ((p3>>1)&0xFF) + 80;
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}
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/**
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create a unix date (int GMT) from a dos date (which is actually in
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localtime)
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**/
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_PUBLIC_ time_t pull_dos_date(const uint8_t *date_ptr, int zone_offset)
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{
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uint32_t dos_date=0;
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struct tm t;
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time_t ret;
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dos_date = IVAL(date_ptr,0);
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if (dos_date == 0) return (time_t)0;
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interpret_dos_date(dos_date,&t.tm_year,&t.tm_mon,
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&t.tm_mday,&t.tm_hour,&t.tm_min,&t.tm_sec);
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t.tm_isdst = -1;
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ret = timegm(&t);
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ret += zone_offset;
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return ret;
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}
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/**
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like make_unix_date() but the words are reversed
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**/
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_PUBLIC_ time_t pull_dos_date2(const uint8_t *date_ptr, int zone_offset)
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{
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uint32_t x,x2;
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x = IVAL(date_ptr,0);
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x2 = ((x&0xFFFF)<<16) | ((x&0xFFFF0000)>>16);
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SIVAL(&x,0,x2);
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return pull_dos_date((const uint8_t *)&x, zone_offset);
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}
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/**
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create a unix GMT date from a dos date in 32 bit "unix like" format
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these generally arrive as localtimes, with corresponding DST
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**/
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_PUBLIC_ time_t pull_dos_date3(const uint8_t *date_ptr, int zone_offset)
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{
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time_t t = (time_t)IVAL(date_ptr,0);
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if (!null_time(t)) {
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t += zone_offset;
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}
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return t;
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}
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/****************************************************************************
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Return the date and time as a string
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****************************************************************************/
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char *timeval_string(TALLOC_CTX *ctx, const struct timeval *tp, bool hires)
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{
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time_t t;
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struct tm *tm;
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t = (time_t)tp->tv_sec;
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tm = localtime(&t);
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if (!tm) {
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if (hires) {
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return talloc_asprintf(ctx,
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"%ld.%06ld seconds since the Epoch",
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(long)tp->tv_sec,
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(long)tp->tv_usec);
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} else {
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return talloc_asprintf(ctx,
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"%ld seconds since the Epoch",
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(long)t);
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}
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} else {
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#ifdef HAVE_STRFTIME
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char TimeBuf[60];
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if (hires) {
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strftime(TimeBuf,sizeof(TimeBuf)-1,"%Y/%m/%d %H:%M:%S",tm);
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return talloc_asprintf(ctx,
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"%s.%06ld", TimeBuf,
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(long)tp->tv_usec);
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} else {
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strftime(TimeBuf,sizeof(TimeBuf)-1,"%Y/%m/%d %H:%M:%S",tm);
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return talloc_strdup(ctx, TimeBuf);
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}
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#else
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if (hires) {
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const char *asct = asctime(tm);
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return talloc_asprintf(ctx, "%s.%06ld",
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asct ? asct : "unknown",
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(long)tp->tv_usec);
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} else {
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const char *asct = asctime(tm);
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return talloc_asprintf(ctx, asct ? asct : "unknown");
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}
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#endif
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}
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}
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char *current_timestring(TALLOC_CTX *ctx, bool hires)
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{
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struct timeval tv;
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GetTimeOfDay(&tv);
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return timeval_string(ctx, &tv, hires);
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}
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/**
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return a HTTP/1.0 time string
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**/
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_PUBLIC_ char *http_timestring(TALLOC_CTX *mem_ctx, time_t t)
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{
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char *buf;
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char tempTime[60];
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struct tm *tm = localtime(&t);
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if (t == TIME_T_MAX) {
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return talloc_strdup(mem_ctx, "never");
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}
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if (!tm) {
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return talloc_asprintf(mem_ctx,"%ld seconds since the Epoch",(long)t);
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}
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#ifndef HAVE_STRFTIME
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buf = talloc_strdup(mem_ctx, asctime(tm));
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if (buf[strlen(buf)-1] == '\n') {
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buf[strlen(buf)-1] = 0;
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}
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#else
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strftime(tempTime, sizeof(tempTime)-1, "%a, %d %b %Y %H:%M:%S %Z", tm);
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buf = talloc_strdup(mem_ctx, tempTime);
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#endif /* !HAVE_STRFTIME */
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return buf;
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}
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/**
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Return the date and time as a string
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**/
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_PUBLIC_ char *timestring(TALLOC_CTX *mem_ctx, time_t t)
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{
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char *TimeBuf;
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char tempTime[80];
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struct tm *tm;
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tm = localtime(&t);
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if (!tm) {
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return talloc_asprintf(mem_ctx,
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"%ld seconds since the Epoch",
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(long)t);
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}
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#ifdef HAVE_STRFTIME
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/* Some versions of gcc complain about using some special format
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* specifiers. This is a bug in gcc, not a bug in this code. See a
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* recent strftime() manual page for details. */
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strftime(tempTime,sizeof(tempTime)-1,"%a %b %e %X %Y %Z",tm);
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TimeBuf = talloc_strdup(mem_ctx, tempTime);
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#else
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TimeBuf = talloc_strdup(mem_ctx, asctime(tm));
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#endif
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return TimeBuf;
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}
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/**
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return a talloced string representing a NTTIME for human consumption
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*/
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_PUBLIC_ const char *nt_time_string(TALLOC_CTX *mem_ctx, NTTIME nt)
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{
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time_t t;
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if (nt == 0) {
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return "NTTIME(0)";
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}
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t = nt_time_to_unix(nt);
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return timestring(mem_ctx, t);
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}
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/**
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put a NTTIME into a packet
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*/
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_PUBLIC_ void push_nttime(uint8_t *base, uint16_t offset, NTTIME t)
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{
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SBVAL(base, offset, t);
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}
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/**
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pull a NTTIME from a packet
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*/
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_PUBLIC_ NTTIME pull_nttime(uint8_t *base, uint16_t offset)
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{
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NTTIME ret = BVAL(base, offset);
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return ret;
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}
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|
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/**
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return (tv1 - tv2) in microseconds
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*/
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_PUBLIC_ int64_t usec_time_diff(const struct timeval *tv1, const struct timeval *tv2)
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{
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int64_t sec_diff = tv1->tv_sec - tv2->tv_sec;
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return (sec_diff * 1000000) + (int64_t)(tv1->tv_usec - tv2->tv_usec);
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}
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/**
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return (tp1 - tp2) in microseconds
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*/
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_PUBLIC_ int64_t nsec_time_diff(const struct timespec *tp1, const struct timespec *tp2)
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{
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int64_t sec_diff = tp1->tv_sec - tp2->tv_sec;
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return (sec_diff * 1000000000) + (int64_t)(tp1->tv_nsec - tp2->tv_nsec);
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}
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/**
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return a zero timeval
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*/
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_PUBLIC_ struct timeval timeval_zero(void)
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{
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struct timeval tv;
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tv.tv_sec = 0;
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tv.tv_usec = 0;
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return tv;
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}
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|
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/**
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return true if a timeval is zero
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*/
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_PUBLIC_ bool timeval_is_zero(const struct timeval *tv)
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{
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return tv->tv_sec == 0 && tv->tv_usec == 0;
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}
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|
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/**
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return a timeval for the current time
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*/
|
|
_PUBLIC_ struct timeval timeval_current(void)
|
|
{
|
|
struct timeval tv;
|
|
GetTimeOfDay(&tv);
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return tv;
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|
}
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|
|
/**
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|
return a timeval struct with the given elements
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|
*/
|
|
_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);
|
|
}
|
|
|
|
/**
|
|
return a timeval milliseconds into the future
|
|
*/
|
|
_PUBLIC_ struct timeval timeval_current_ofs_msec(uint32_t msecs)
|
|
{
|
|
struct timeval tv = timeval_current();
|
|
return timeval_add(&tv, msecs / 1000, (msecs % 1000) * 1000);
|
|
}
|
|
|
|
/**
|
|
return a timeval microseconds into the future
|
|
*/
|
|
_PUBLIC_ struct timeval timeval_current_ofs_usec(uint32_t usecs)
|
|
{
|
|
struct timeval tv = timeval_current();
|
|
return timeval_add(&tv, usecs / 1000000, usecs % 1000000);
|
|
}
|
|
|
|
/**
|
|
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);
|
|
}
|
|
|
|
struct timespec nt_time_to_unix_timespec(NTTIME *nt)
|
|
{
|
|
int64_t d;
|
|
struct timespec ret;
|
|
|
|
if (*nt == 0 || *nt == (int64_t)-1) {
|
|
ret.tv_sec = 0;
|
|
ret.tv_nsec = 0;
|
|
return ret;
|
|
}
|
|
|
|
d = (int64_t)*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_t)TIME_T_MIN) {
|
|
ret.tv_sec = TIME_T_MIN;
|
|
ret.tv_nsec = 0;
|
|
return ret;
|
|
}
|
|
|
|
if (d >= (int64_t)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 2 NTTIMEs are equal.
|
|
*/
|
|
bool nt_time_equal(NTTIME *t1, NTTIME *t2)
|
|
{
|
|
return *t1 == *t2;
|
|
}
|
|
|
|
/**
|
|
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;
|
|
}
|
|
|
|
/****************************************************************************
|
|
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 timespec ts;
|
|
clock_gettime(CLOCK_REALTIME, &ts);
|
|
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;
|
|
}
|
|
|
|
/****************************************************************************
|
|
Round up a timespec if nsec > 500000000, round down if lower,
|
|
then zero nsec.
|
|
****************************************************************************/
|
|
|
|
void round_timespec_to_sec(struct timespec *ts)
|
|
{
|
|
ts->tv_sec = convert_timespec_to_time_t(*ts);
|
|
ts->tv_nsec = 0;
|
|
}
|
|
|
|
/****************************************************************************
|
|
Round a timespec to usec value.
|
|
****************************************************************************/
|
|
|
|
void round_timespec_to_usec(struct timespec *ts)
|
|
{
|
|
struct timeval tv = convert_timespec_to_timeval(*ts);
|
|
*ts = convert_timeval_to_timespec(tv);
|
|
while (ts->tv_nsec > 1000000000) {
|
|
ts->tv_sec += 1;
|
|
ts->tv_nsec -= 1000000000;
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
Put a 8 byte filetime from a struct timespec. Uses GMT.
|
|
****************************************************************************/
|
|
|
|
void unix_timespec_to_nt_time(NTTIME *nt, struct timespec ts)
|
|
{
|
|
uint64_t 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_t)-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;
|
|
}
|