mirror of
https://github.com/samba-team/samba.git
synced 2024-12-25 23:21:54 +03:00
fbdcf2663b
to do the upper layer directories but this is what
everyone is waiting for....
Jeremy.
(This used to be commit 9dafb7f48c
)
1124 lines
29 KiB
C
1124 lines
29 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 1992-1998
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Copyright (C) Stefan (metze) Metzmacher 2002
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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 2 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, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "includes.h"
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/*
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This stuff was largely rewritten by Paul Eggert <eggert@twinsun.com>
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in May 1996
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*/
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int extra_time_offset = 0;
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#ifndef CHAR_BIT
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#define CHAR_BIT 8
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#endif
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#ifndef TIME_T_MIN
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#define TIME_T_MIN ((time_t)0 < (time_t) -1 ? (time_t) 0 \
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: ~ (time_t) 0 << (sizeof (time_t) * CHAR_BIT - 1))
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#endif
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#ifndef TIME_T_MAX
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#define TIME_T_MAX (~ (time_t) 0 - TIME_T_MIN)
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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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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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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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#define TM_YEAR_BASE 1900
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/*******************************************************************
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Yield the difference between *A and *B, in seconds, ignoring leap seconds.
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********************************************************************/
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static int tm_diff(struct tm *a, struct tm *b)
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{
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int ay = a->tm_year + (TM_YEAR_BASE - 1);
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int by = b->tm_year + (TM_YEAR_BASE - 1);
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int intervening_leap_days = (ay/4 - by/4) - (ay/100 - by/100) + (ay/400 - by/400);
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int years = ay - by;
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int days = 365*years + intervening_leap_days + (a->tm_yday - b->tm_yday);
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int hours = 24*days + (a->tm_hour - b->tm_hour);
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int minutes = 60*hours + (a->tm_min - b->tm_min);
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int seconds = 60*minutes + (a->tm_sec - b->tm_sec);
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return seconds;
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}
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/*******************************************************************
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Return the UTC offset in seconds west of UTC, or 0 if it cannot be determined.
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******************************************************************/
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int get_time_zone(time_t t)
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{
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struct tm *tm = gmtime(&t);
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struct tm tm_utc;
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if (!tm) {
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return 0;
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}
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tm_utc = *tm;
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tm = localtime(&t);
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if (!tm) {
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return 0;
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}
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return tm_diff(&tm_utc,tm) + 60*extra_time_offset;
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}
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/*******************************************************************
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Accessor function for the server time zone offset.
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set_server_zone_offset() must have been called first.
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******************************************************************/
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static int server_zone_offset;
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int get_server_zone_offset(void)
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{
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return server_zone_offset;
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}
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/*******************************************************************
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Initialize the server time zone offset. Called when a client connects.
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******************************************************************/
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int set_server_zone_offset(time_t t)
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{
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server_zone_offset = get_time_zone(t);
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return server_zone_offset;
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}
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/*******************************************************************
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Re-read the smb serverzone value.
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******************************************************************/
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static struct timeval start_time_hires;
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void TimeInit(void)
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{
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set_server_zone_offset(time(NULL));
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DEBUG(4,("TimeInit: Serverzone is %d\n", server_zone_offset));
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/* Save the start time of this process. */
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if (start_time_hires.tv_sec == 0 && start_time_hires.tv_usec == 0) {
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GetTimeOfDay(&start_time_hires);
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}
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}
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/**********************************************************************
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Return a timeval struct of the uptime of this process. As TimeInit is
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done before a daemon fork then this is the start time from the parent
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daemon start. JRA.
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***********************************************************************/
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void get_process_uptime(struct timeval *ret_time)
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{
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struct timeval time_now_hires;
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GetTimeOfDay(&time_now_hires);
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ret_time->tv_sec = time_now_hires.tv_sec - start_time_hires.tv_sec;
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if (time_now_hires.tv_usec < start_time_hires.tv_usec) {
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ret_time->tv_sec -= 1;
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ret_time->tv_usec = 1000000 + (time_now_hires.tv_usec - start_time_hires.tv_usec);
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} else {
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ret_time->tv_usec = time_now_hires.tv_usec - start_time_hires.tv_usec;
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}
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}
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#if 0
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/****************************************************************************
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Return the UTC offset in seconds west of UTC, adjusted for extra time offset.
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**************************************************************************/
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int TimeDiff(time_t t)
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{
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return get_time_zone(t);
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}
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#endif
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#define TIME_FIXUP_CONSTANT (369.0*365.25*24*60*60-(3.0*24*60*60+6.0*60*60))
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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 (time_t)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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double d;
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time_t ret;
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/* The next two lines are a fix needed for the
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broken SCO compiler. JRA. */
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time_t l_time_min = TIME_T_MIN;
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time_t l_time_max = TIME_T_MAX;
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if (nt->high == 0 || (nt->high == 0xffffffff && nt->low == 0xffffffff)) {
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return(0);
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}
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d = ((double)nt->high)*4.0*(double)(1<<30);
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d += (nt->low&0xFFF00000);
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d *= 1.0e-7;
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/* now adjust by 369 years to make the secs since 1970 */
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d -= TIME_FIXUP_CONSTANT;
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if (d <= l_time_min) {
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return (l_time_min);
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}
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if (d >= l_time_max) {
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return (l_time_max);
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}
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ret = (time_t)(d+0.5);
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return(ret);
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}
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/****************************************************************************
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Convert a NTTIME structure to a time_t.
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It's originally in "100ns units".
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This is an absolute version of the one above.
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By absolute I mean, it doesn't adjust from 1/1/1601 to 1/1/1970
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if the NTTIME was 5 seconds, the time_t is 5 seconds. JFM
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****************************************************************************/
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time_t nt_time_to_unix_abs(const NTTIME *nt)
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{
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double d;
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time_t ret;
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/* The next two lines are a fix needed for the
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broken SCO compiler. JRA. */
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time_t l_time_min = TIME_T_MIN;
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time_t l_time_max = TIME_T_MAX;
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NTTIME neg_nt;
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if (nt->high == 0) {
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return(0);
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}
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if (nt->high==0x80000000 && nt->low==0) {
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return (time_t)-1;
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}
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/* reverse the time */
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/* it's a negative value, turn it to positive */
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neg_nt.high=~nt->high;
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neg_nt.low=~nt->low;
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d = ((double)neg_nt.high)*4.0*(double)(1<<30);
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d += (neg_nt.low&0xFFF00000);
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d *= 1.0e-7;
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if (!(l_time_min <= d && d <= l_time_max)) {
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return(0);
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}
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ret = (time_t)(d+0.5);
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return(ret);
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}
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/****************************************************************************
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Interprets an nt time into a unix time_t.
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Differs from nt_time_to_unix in that an 8 byte value of 0xffffffffffffffff
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will be returned as (time_t)-1, whereas nt_time_to_unix returns 0 in this case.
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****************************************************************************/
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time_t interpret_long_date(char *p)
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{
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NTTIME nt;
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nt.low = IVAL(p,0);
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nt.high = IVAL(p,4);
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if (nt.low == 0xFFFFFFFF && nt.high == 0xFFFFFFFF) {
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return (time_t)-1;
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}
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return nt_time_to_unix(&nt);
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}
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/****************************************************************************
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Put a 8 byte filetime from a time_t. Uses GMT.
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****************************************************************************/
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void unix_to_nt_time(NTTIME *nt, time_t t)
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{
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double d;
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if (t==0) {
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nt->low = 0;
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nt->high = 0;
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return;
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}
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if (t == TIME_T_MAX) {
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nt->low = 0xffffffff;
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nt->high = 0x7fffffff;
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return;
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}
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if (t == (time_t)-1) {
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nt->low = 0xffffffff;
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nt->high = 0xffffffff;
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return;
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}
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d = (double)(t);
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d += TIME_FIXUP_CONSTANT;
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d *= 1.0e7;
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nt->high = (uint32)(d * (1.0/(4.0*(double)(1<<30))));
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nt->low = (uint32)(d - ((double)nt->high)*4.0*(double)(1<<30));
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}
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/****************************************************************************
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Convert a time_t to a NTTIME structure
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This is an absolute version of the one above.
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By absolute I mean, it doesn't adjust from 1/1/1970 to 1/1/1601
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If the nttime_t was 5 seconds, the NTTIME is 5 seconds. JFM
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****************************************************************************/
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void unix_to_nt_time_abs(NTTIME *nt, time_t t)
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{
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double d;
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if (t==0) {
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nt->low = 0;
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nt->high = 0;
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return;
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}
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if (t == TIME_T_MAX) {
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nt->low = 0xffffffff;
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nt->high = 0x7fffffff;
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return;
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}
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if (t == (time_t)-1) {
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/* that's what NT uses for infinite */
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nt->low = 0x0;
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nt->high = 0x80000000;
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return;
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}
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d = (double)(t);
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d *= 1.0e7;
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nt->high = (uint32)(d * (1.0/(4.0*(double)(1<<30))));
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nt->low = (uint32)(d - ((double)nt->high)*4.0*(double)(1<<30));
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/* convert to a negative value */
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nt->high=~nt->high;
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nt->low=~nt->low;
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}
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/****************************************************************************
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Take a Unix time and convert to an NTTIME structure and place in buffer
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pointed to by p.
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****************************************************************************/
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void put_long_date(char *p, time_t t)
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{
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NTTIME nt;
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unix_to_nt_time(&nt, t);
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SIVAL(p, 0, nt.low);
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SIVAL(p, 4, nt.high);
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}
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/****************************************************************************
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Check if it's a null mtime.
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****************************************************************************/
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BOOL null_mtime(time_t mtime)
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{
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if (mtime == 0 || mtime == (time_t)0xFFFFFFFF || mtime == (time_t)-1)
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return(True);
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return(False);
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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 make_dos_date1(struct tm *t)
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{
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uint16 ret=0;
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ret = (((unsigned)(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 make_dos_time1(struct tm *t)
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{
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uint16 ret=0;
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ret = ((((unsigned)t->tm_min >> 3)&0x7) | (((unsigned)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 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 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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static void put_dos_date(char *buf,int offset,time_t unixdate, int zone_offset)
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{
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uint32 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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static void put_dos_date2(char *buf,int offset,time_t unixdate, int zone_offset)
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{
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uint32 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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static void put_dos_date3(char *buf,int offset,time_t unixdate, int zone_offset)
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{
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if (!null_mtime(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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static void interpret_dos_date(uint32 date,int *year,int *month,int *day,int *hour,int *minute,int *second)
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{
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uint32 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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static time_t make_unix_date(void *date_ptr, int zone_offset)
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{
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uint32 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) {
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return 0;
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}
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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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/*******************************************************************
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Like make_unix_date() but the words are reversed.
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********************************************************************/
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static time_t make_unix_date2(void *date_ptr, int zone_offset)
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{
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uint32 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(make_unix_date((void *)&x, zone_offset));
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}
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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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static time_t make_unix_date3(void *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_mtime(t)) {
|
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t += zone_offset;
|
|
}
|
|
return(t);
|
|
}
|
|
|
|
/***************************************************************************
|
|
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);
|
|
}
|
|
|
|
time_t srv_make_unix_date(void *date_ptr)
|
|
{
|
|
return make_unix_date(date_ptr, server_zone_offset);
|
|
}
|
|
|
|
time_t srv_make_unix_date2(void *date_ptr)
|
|
{
|
|
return make_unix_date2(date_ptr, server_zone_offset);
|
|
}
|
|
|
|
time_t srv_make_unix_date3(void *date_ptr)
|
|
{
|
|
return make_unix_date3(date_ptr, server_zone_offset);
|
|
}
|
|
|
|
/***************************************************************************
|
|
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);
|
|
}
|
|
|
|
/***************************************************************************
|
|
Return a HTTP/1.0 time string.
|
|
***************************************************************************/
|
|
|
|
char *http_timestring(time_t t)
|
|
{
|
|
static fstring buf;
|
|
struct tm *tm = localtime(&t);
|
|
|
|
if (!tm) {
|
|
slprintf(buf,sizeof(buf)-1,"%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 buf;
|
|
}
|
|
|
|
/****************************************************************************
|
|
Return the date and time as a string
|
|
****************************************************************************/
|
|
|
|
char *current_timestring(BOOL hires)
|
|
{
|
|
static 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(TimeBuf);
|
|
}
|
|
|
|
/****************************************************************************
|
|
Return the best approximation to a 'create time' under UNIX from a stat
|
|
structure.
|
|
****************************************************************************/
|
|
|
|
time_t get_create_time(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;
|
|
}
|
|
|
|
/****************************************************************************
|
|
Initialise an NTTIME to -1, which means "unknown" or "don't expire".
|
|
****************************************************************************/
|
|
|
|
void init_nt_time(NTTIME *nt)
|
|
{
|
|
nt->high = 0x7FFFFFFF;
|
|
nt->low = 0xFFFFFFFF;
|
|
}
|
|
|
|
BOOL nt_time_is_set(const NTTIME *nt)
|
|
{
|
|
if ((nt->high == 0x7FFFFFFF) && (nt->low == 0xFFFFFFFF)) {
|
|
return False;
|
|
}
|
|
|
|
if ((nt->high == 0x80000000) && (nt->low == 0)) {
|
|
return False;
|
|
}
|
|
|
|
return True;
|
|
}
|
|
|
|
/****************************************************************************
|
|
Check if NTTIME is 0.
|
|
****************************************************************************/
|
|
|
|
BOOL nt_time_is_zero(const NTTIME *nt)
|
|
{
|
|
if(nt->high==0) {
|
|
return True;
|
|
}
|
|
return False;
|
|
}
|
|
|
|
/****************************************************************************
|
|
Check if two NTTIMEs are the same.
|
|
****************************************************************************/
|
|
|
|
BOOL nt_time_equals(const NTTIME *nt1, const NTTIME *nt2)
|
|
{
|
|
return (nt1->high == nt2->high && nt1->low == nt2->low);
|
|
}
|
|
|
|
/****************************************************************************
|
|
Return a timeval difference in usec.
|
|
****************************************************************************/
|
|
|
|
SMB_BIG_INT usec_time_diff(const struct timeval *larget, const struct timeval *smallt)
|
|
{
|
|
SMB_BIG_INT sec_diff = larget->tv_sec - smallt->tv_sec;
|
|
return (sec_diff * 1000000) + (SMB_BIG_INT)(larget->tv_usec - smallt->tv_usec);
|
|
}
|
|
|
|
/****************************************************************************
|
|
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 zero timeval.
|
|
****************************************************************************/
|
|
|
|
struct timeval timeval_zero(void)
|
|
{
|
|
return timeval_set(0,0);
|
|
}
|
|
|
|
/****************************************************************************
|
|
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 ofs microseconds after tv.
|
|
****************************************************************************/
|
|
|
|
struct timeval timeval_add(const struct timeval *tv,
|
|
uint32_t secs, uint32_t usecs)
|
|
{
|
|
struct timeval tv2 = *tv;
|
|
tv2.tv_sec += secs;
|
|
tv2.tv_usec += usecs;
|
|
tv2.tv_sec += tv2.tv_usec / 1000000;
|
|
tv2.tv_usec = tv2.tv_usec % 1000000;
|
|
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 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;
|
|
}
|
|
|
|
/****************************************************************************
|
|
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;
|
|
}
|
|
|
|
/****************************************************************************
|
|
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);
|
|
}
|
|
|
|
/****************************************************************************
|
|
Return all the possible time fields from a stat struct as a timespec.
|
|
****************************************************************************/
|
|
|
|
struct timespec get_atimespec(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
|
|
}
|
|
|
|
struct timespec get_mtimespec(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
|
|
}
|
|
|
|
struct timespec get_ctimespec(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
|
|
}
|
|
|
|
#if 0
|
|
/****************************************************************************
|
|
Return the best approximation to a 'create time' under UNIX from a stat
|
|
structure.
|
|
****************************************************************************/
|
|
|
|
struct timespec get_create_timespec(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;
|
|
}
|
|
#endif
|
|
|
|
|
|
/**
|
|
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.low == 0 && nt.high == 0) {
|
|
return "NTTIME(0)";
|
|
}
|
|
t = nt_time_to_unix(&nt);
|
|
return timestring(mem_ctx, t);
|
|
}
|
|
|
|
/****************************************************************************
|
|
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;
|
|
}
|