763 lines
24 KiB
C
763 lines
24 KiB
C
/*
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* Nt time functions.
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*
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* RtlTimeToTimeFields, RtlTimeFieldsToTime and defines are taken from ReactOS and
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* adapted to wine with special permissions of the author
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* Rex Jolliff (rex@lvcablemodem.com)
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*
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* Copyright 1999 Juergen Schmied
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "config.h"
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#include "wine/port.h"
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#include <string.h>
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#include <time.h>
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#ifdef HAVE_SYS_TIME_H
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# include <sys/time.h>
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#endif
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#include "winternl.h"
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#include "wine/unicode.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(ntdll);
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#define SETTIME_MAX_ADJUST 120
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/* This structure is used to store strings that represent all of the time zones
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* in the world. (This is used to help GetTimeZoneInformation)
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*/
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struct tagTZ_INFO
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{
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const char *psTZFromUnix;
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WCHAR psTZWindows[32];
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int bias;
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int dst;
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};
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static const struct tagTZ_INFO TZ_INFO[] =
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{
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{"MHT",
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{'D','a','t','e','l','i','n','e',' ','S','t','a','n','d','a','r','d',' ',
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'T','i','m','e','\0'}, -720, 0},
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{"SST",
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{'S','a','m','o','a',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
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'e','\0'}, 660, 0},
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{"HST",
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{'H','a','w','a','i','i','a','n',' ','S','t','a','n','d','a','r','d',' ',
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'T','i','m','e','\0'}, 600, 0},
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{"AKDT",
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{'A','l','a','s','k','a','n',' ','S','t','a','n','d','a','r','d',' ','T',
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'i','m','e','\0'}, 480, 1},
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{"PDT",
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{'P','a','c','i','f','i','c',' ','S','t','a','n','d','a','r','d',' ','T',
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'i','m','e','\0'}, 420, 1},
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{"MST",
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{'U','S',' ','M','o','u','n','t','a','i','n',' ','S','t','a','n','d','a',
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'r','d',' ','T','i','m','e','\0'}, 420, 0},
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{"MDT",
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{'M','o','u','n','t','a','i','n',' ','S','t','a','n','d','a','r','d',' ',
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'T','i','m','e','\0'}, 360, 1},
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{"CST",
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{'C','e','n','t','r','a','l',' ','A','m','e','r','i','c','a',' ','S','t',
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'a','n','d','a','r','d',' ','T','i','m','e','\0'}, 360, 0},
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{"CDT",
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{'C','e','n','t','r','a','l',' ','S','t','a','n','d','a','r','d',' ','T',
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'i','m','e','\0'}, 300, 1},
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{"COT",
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{'S','A',' ','P','a','c','i','f','i','c',' ','S','t','a','n','d','a','r',
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'd',' ','T','i','m','e','\0'}, 300, 0},
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{"EDT",
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{'E','a','s','t','e','r','n',' ','S','t','a','n','d','a','r','d',' ','T',
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'i','m','e','\0'}, 240, 1},
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{"EST",
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{'U','S',' ','E','a','s','t','e','r','n',' ','S','t','a','n','d','a','r',
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'd',' ','T','i','m','e','\0'}, 300, 0},
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{"ADT",
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{'A','t','l','a','n','t','i','c',' ','S','t','a','n','d','a','r','d',' ',
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'T','i','m','e','\0'}, 180, 1},
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{"VET",
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{'S','A',' ','W','e','s','t','e','r','n',' ','S','t','a','n','d','a','r',
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'd',' ','T','i','m','e','\0'}, 240, 0},
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{"CLT",
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{'P','a','c','i','f','i','c',' ','S','A',' ','S','t','a','n','d','a','r',
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'd',' ','T','i','m','e','\0'}, 240, 0},
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{"NDT",
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{'N','e','w','f','o','u','n','d','l','a','n','d',' ','S','t','a','n','d',
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'a','r','d',' ','T','i','m','e','\0'}, 150, 1},
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{"BRT",
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{'E','.',' ','S','o','u','t','h',' ','A','m','e','r','i','c','a',' ','S',
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't','a','n','d','a','r','d',' ','T','i','m','e','\0'}, 180, 0},
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{"ART",
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{'S','A',' ','E','a','s','t','e','r','n',' ','S','t','a','n','d','a','r',
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'd',' ','T','i','m','e','\0'}, 180, 0},
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{"WGST",
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{'G','r','e','e','n','l','a','n','d',' ','S','t','a','n','d','a','r','d',
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' ','T','i','m','e','\0'}, 120, 1},
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{"GST",
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{'M','i','d','-','A','t','l','a','n','t','i','c',' ','S','t','a','n','d',
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'a','r','d',' ','T','i','m','e','\0'}, 120, 0},
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{"AZOST",
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{'A','z','o','r','e','s',' ','S','t','a','n','d','a','r','d',' ','T','i',
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'm','e','\0'}, 0, 1},
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{"CVT",
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{'C','a','p','e',' ','V','e','r','d','e',' ','S','t','a','n','d','a','r',
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'd',' ','T','i','m','e','\0'}, 60, 0},
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{"WET",
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{'G','r','e','e','n','w','i','c','h',' ','S','t','a','n','d','a','r','d',
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' ','T','i','m','e','\0'}, 0, 0},
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{"BST",
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{'G','M','T',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e','\0'},
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-60, 1},
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{"GMT",
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{'G','M','T',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e','\0'},
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0, 0},
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{"CEST",
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{'C','e','n','t','r','a','l',' ','E','u','r','o','p','e',' ','S','t','a',
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'n','d','a','r','d',' ','T','i','m','e','\0'}, -120, 1},
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{"WAT",
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{'W','.',' ','C','e','n','t','r','a','l',' ','A','f','r','i','c','a',' ',
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'S','t','a','n','d','a','r','d',' ','T','i','m','e','\0'}, -60, 0},
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{"EEST",
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{'E','.',' ','E','u','r','o','p','e',' ','S','t','a','n','d','a','r','d',
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' ','T','i','m','e','\0'}, -180, 1},
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{"EET",
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{'E','g','y','p','t',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
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'e','\0'}, -120, 0},
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{"CAT",
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{'S','o','u','t','h',' ','A','f','r','i','c','a',' ','S','t','a','n','d',
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'a','r','d',' ','T','i','m','e','\0'}, -120, 0},
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{"IST",
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{'I','s','r','a','e','l',' ','S','t','a','n','d','a','r','d',' ','T','i',
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'm','e','\0'}, -120, 0},
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{"ADT",
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{'A','r','a','b','i','c',' ','S','t','a','n','d','a','r','d',' ','T','i',
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'm','e','\0'}, -240, 1},
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{"AST",
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{'A','r','a','b',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e',
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'\0'}, -180, 0},
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{"MSD",
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{'R','u','s','s','i','a','n',' ','S','t','a','n','d','a','r','d',' ','T',
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'i','m','e','\0'}, -240, 1},
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{"EAT",
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{'E','.',' ','A','f','r','i','c','a',' ','S','t','a','n','d','a','r','d',
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' ','T','i','m','e','\0'}, -180, 0},
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{"IRST",
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{'I','r','a','n',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e',
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'\0'}, -270, 1},
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{"GST",
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{'A','r','a','b','i','a','n',' ','S','t','a','n','d','a','r','d',' ','T',
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'i','m','e','\0'}, -240, 0},
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{"AZST",
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{'C','a','u','c','a','s','u','s',' ','S','t','a','n','d','a','r','d',' ',
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'T','i','m','e','\0'}, -300, 1},
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{"AFT",
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{'A','f','g','h','a','n','i','s','t','a','n',' ','S','t','a','n','d','a',
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'r','d',' ','T','i','m','e','\0'}, -270, 0},
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{"YEKST",
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{'E','k','a','t','e','r','i','n','b','u','r','g',' ','S','t','a','n','d',
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'a','r','d',' ','T','i','m','e','\0'}, -360, 1},
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{"PKT",
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{'W','e','s','t',' ','A','s','i','a',' ','S','t','a','n','d','a','r','d',
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' ','T','i','m','e','\0'}, -300, 0},
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{"IST",
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{'I','n','d','i','a',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
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'e','\0'}, -330, 0},
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{"NPT",
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{'N','e','p','a','l',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
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'e','\0'}, -345, 0},
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{"ALMST",
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{'N','.',' ','C','e','n','t','r','a','l',' ','A','s','i','a',' ','S','t',
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'a','n','d','a','r','d',' ','T','i','m','e','\0'}, -420, 1},
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{"BDT",
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{'C','e','n','t','r','a','l',' ','A','s','i','a',' ','S','t','a','n','d',
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'a','r','d',' ','T','i','m','e','\0'}, -360, 0},
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{"LKT",
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{'S','r','i',' ','L','a','n','k','a',' ','S','t','a','n','d','a','r','d',
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' ','T','i','m','e','\0'}, -360, 0},
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{"MMT",
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{'M','y','a','n','m','a','r',' ','S','t','a','n','d','a','r','d',' ','T',
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'i','m','e','\0'}, -390, 0},
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{"ICT",
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{'S','E',' ','A','s','i','a',' ','S','t','a','n','d','a','r','d',' ','T',
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'i','m','e','\0'}, -420, 0},
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{"KRAST",
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{'N','o','r','t','h',' ','A','s','i','a',' ','S','t','a','n','d','a','r',
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'd',' ','T','i','m','e','\0'}, -480, 1},
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{"CST",
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{'C','h','i','n','a',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
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'e','\0'}, -480, 0},
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{"IRKST",
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{'N','o','r','t','h',' ','A','s','i','a',' ','E','a','s','t',' ','S','t',
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'a','n','d','a','r','d',' ','T','i','m','e','\0'}, -540, 1},
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{"SGT",
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{'M','a','l','a','y',' ','P','e','n','i','n','s','u','l','a',' ','S','t',
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'a','n','d','a','r','d',' ','T','i','m','e','\0'}, -480, 0},
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{"WST",
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{'W','.',' ','A','u','s','t','r','a','l','i','a',' ','S','t','a','n','d',
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'a','r','d',' ','T','i','m','e','\0'}, -480, 0},
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{"JST",
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{'T','o','k','y','o',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
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'e','\0'}, -540, 0},
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{"KST",
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{'K','o','r','e','a',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
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'e','\0'}, -540, 0},
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{"YAKST",
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{'Y','a','k','u','t','s','k',' ','S','t','a','n','d','a','r','d',' ','T',
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'i','m','e','\0'}, -600, 1},
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{"CST",
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{'C','e','n','.',' ','A','u','s','t','r','a','l','i','a',' ','S','t','a',
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'n','d','a','r','d',' ','T','i','m','e','\0'}, -570, 0},
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{"EST",
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{'E','.',' ','A','u','s','t','r','a','l','i','a',' ','S','t','a','n','d',
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'a','r','d',' ','T','i','m','e','\0'}, -600, 0},
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{"GST",
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{'W','e','s','t',' ','P','a','c','i','f','i','c',' ','S','t','a','n','d',
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'a','r','d',' ','T','i','m','e','\0'}, -600, 0},
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{"VLAST",
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{'V','l','a','d','i','v','o','s','t','o','k',' ','S','t','a','n','d','a',
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'r','d',' ','T','i','m','e','\0'}, -660, 1},
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{"MAGST",
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{'C','e','n','t','r','a','l',' ','P','a','c','i','f','i','c',' ','S','t',
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'a','n','d','a','r','d',' ','T','i','m','e','\0'}, -720, 1},
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{"NZST",
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{'N','e','w',' ','Z','e','a','l','a','n','d',' ','S','t','a','n','d','a',
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'r','d',' ','T','i','m','e','\0'}, -720, 0},
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{"FJT",
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{'F','i','j','i',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e',
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'\0'}, -720, 0},
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{"TOT",
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{'T','o','n','g','a',' ','S','t','a','n','d','a','r','d',' ','T','i','m',
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'e','\0'}, -780, 0}
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};
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/*********** start of code by Rex Jolliff (rex@lvcablemodem.com) **************/
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#define TICKSPERSEC 10000000
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#define TICKSPERMSEC 10000
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#define SECSPERDAY 86400
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#define SECSPERHOUR 3600
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#define SECSPERMIN 60
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#define MINSPERHOUR 60
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#define HOURSPERDAY 24
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#define EPOCHWEEKDAY 0
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#define DAYSPERWEEK 7
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#define EPOCHYEAR 1601
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#define DAYSPERNORMALYEAR 365
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#define DAYSPERLEAPYEAR 366
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#define MONSPERYEAR 12
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/* 1601 to 1970 is 369 years plus 89 leap days */
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#define SECS_1601_TO_1970 ((369 * 365 + 89) * (ULONGLONG)86400)
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/* 1601 to 1980 is 379 years plus 91 leap days */
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#define SECS_1601_to_1980 ((379 * 365 + 91) * (ULONGLONG)86400)
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static const int YearLengths[2] = {DAYSPERNORMALYEAR, DAYSPERLEAPYEAR};
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static const int MonthLengths[2][MONSPERYEAR] =
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{
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{ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 },
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{ 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }
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};
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static inline int IsLeapYear(int Year)
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{
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return Year % 4 == 0 && (Year % 100 != 0 || Year % 400 == 0) ? 1 : 0;
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}
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static inline void NormalizeTimeFields(CSHORT *FieldToNormalize, CSHORT *CarryField,int Modulus)
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{
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*FieldToNormalize = (CSHORT) (*FieldToNormalize - Modulus);
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*CarryField = (CSHORT) (*CarryField + 1);
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}
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/******************************************************************************
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* RtlTimeToTimeFields [NTDLL.@]
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*
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* Parses Time into a TimeFields structure.
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*
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* PARAMS:
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* liTime [I]: Time to convert to timefields.
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* TimeFields [O]: Pointer to TIME_FIELDS structure to hold parsed info.
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*
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* RETURNS:
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* Nothing.
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*/
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VOID WINAPI RtlTimeToTimeFields(
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const LARGE_INTEGER *liTime,
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PTIME_FIELDS TimeFields)
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{
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const int *Months;
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int SecondsInDay, CurYear;
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int LeapYear, CurMonth;
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long int Days;
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LONGLONG Time;
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Time = liTime->s.HighPart;
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Time <<= 32;
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Time += liTime->s.LowPart;
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/* Extract millisecond from time and convert time into seconds */
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TimeFields->Milliseconds = (CSHORT) ((Time % TICKSPERSEC) / TICKSPERMSEC);
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Time = Time / TICKSPERSEC;
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/* The native version of RtlTimeToTimeFields does not take leap seconds
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* into account */
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/* Split the time into days and seconds within the day */
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Days = Time / SECSPERDAY;
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SecondsInDay = Time % SECSPERDAY;
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/* compute time of day */
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TimeFields->Hour = (CSHORT) (SecondsInDay / SECSPERHOUR);
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SecondsInDay = SecondsInDay % SECSPERHOUR;
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TimeFields->Minute = (CSHORT) (SecondsInDay / SECSPERMIN);
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TimeFields->Second = (CSHORT) (SecondsInDay % SECSPERMIN);
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/* compute day of week */
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TimeFields->Weekday = (CSHORT) ((EPOCHWEEKDAY + Days) % DAYSPERWEEK);
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/* compute year */
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CurYear = EPOCHYEAR;
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/* FIXME: handle calendar modifications */
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while (1)
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{ LeapYear = IsLeapYear(CurYear);
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if (Days < (long) YearLengths[LeapYear])
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{ break;
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}
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CurYear++;
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Days = Days - (long) YearLengths[LeapYear];
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}
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TimeFields->Year = (CSHORT) CurYear;
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/* Compute month of year */
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Months = MonthLengths[LeapYear];
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for (CurMonth = 0; Days >= (long) Months[CurMonth]; CurMonth++)
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Days = Days - (long) Months[CurMonth];
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TimeFields->Month = (CSHORT) (CurMonth + 1);
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TimeFields->Day = (CSHORT) (Days + 1);
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}
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/******************************************************************************
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* RtlTimeFieldsToTime [NTDLL.@]
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*
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* Converts a TIME_FIELDS structure to time.
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*
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* PARAMS:
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* ftTimeFields [I]: Time fields structure to convert.
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* Time [O]: Converted time.
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*
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* RETURNS:
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* TRUE: Successfull
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|
* FALSE: Failure.
|
|
*/
|
|
BOOLEAN WINAPI RtlTimeFieldsToTime(
|
|
PTIME_FIELDS tfTimeFields,
|
|
PLARGE_INTEGER Time)
|
|
{
|
|
int CurYear, CurMonth;
|
|
LONGLONG rcTime;
|
|
TIME_FIELDS TimeFields = *tfTimeFields;
|
|
|
|
rcTime = 0;
|
|
|
|
/* FIXME: normalize the TIME_FIELDS structure here */
|
|
while (TimeFields.Second >= SECSPERMIN)
|
|
{ NormalizeTimeFields(&TimeFields.Second, &TimeFields.Minute, SECSPERMIN);
|
|
}
|
|
while (TimeFields.Minute >= MINSPERHOUR)
|
|
{ NormalizeTimeFields(&TimeFields.Minute, &TimeFields.Hour, MINSPERHOUR);
|
|
}
|
|
while (TimeFields.Hour >= HOURSPERDAY)
|
|
{ NormalizeTimeFields(&TimeFields.Hour, &TimeFields.Day, HOURSPERDAY);
|
|
}
|
|
while (TimeFields.Day > MonthLengths[IsLeapYear(TimeFields.Year)][TimeFields.Month - 1])
|
|
{ NormalizeTimeFields(&TimeFields.Day, &TimeFields.Month, SECSPERMIN);
|
|
}
|
|
while (TimeFields.Month > MONSPERYEAR)
|
|
{ NormalizeTimeFields(&TimeFields.Month, &TimeFields.Year, MONSPERYEAR);
|
|
}
|
|
|
|
/* FIXME: handle calendar corrections here */
|
|
for (CurYear = EPOCHYEAR; CurYear < TimeFields.Year; CurYear++)
|
|
{ rcTime += YearLengths[IsLeapYear(CurYear)];
|
|
}
|
|
for (CurMonth = 1; CurMonth < TimeFields.Month; CurMonth++)
|
|
{ rcTime += MonthLengths[IsLeapYear(CurYear)][CurMonth - 1];
|
|
}
|
|
rcTime += TimeFields.Day - 1;
|
|
rcTime *= SECSPERDAY;
|
|
rcTime += TimeFields.Hour * SECSPERHOUR + TimeFields.Minute * SECSPERMIN + TimeFields.Second;
|
|
rcTime *= TICKSPERSEC;
|
|
rcTime += TimeFields.Milliseconds * TICKSPERMSEC;
|
|
*Time = *(LARGE_INTEGER *)&rcTime;
|
|
|
|
return TRUE;
|
|
}
|
|
/************ end of code by Rex Jolliff (rex@lvcablemodem.com) ***************/
|
|
|
|
|
|
/******************************************************************************
|
|
* RtlSystemTimeToLocalTime [NTDLL.@]
|
|
*
|
|
* Converts system Time to local time.
|
|
*
|
|
* PARAMS:
|
|
* SystemTime [I]: System time to convert.
|
|
* LocalTime [O]: Local time of the supplied system time.
|
|
*
|
|
* RETURNS:
|
|
* Nothing.
|
|
*/
|
|
VOID WINAPI RtlSystemTimeToLocalTime(
|
|
IN PLARGE_INTEGER SystemTime,
|
|
OUT PLARGE_INTEGER LocalTime)
|
|
{
|
|
FIXME("(%p, %p),stub!\n",SystemTime,LocalTime);
|
|
|
|
memcpy (LocalTime, SystemTime, sizeof (PLARGE_INTEGER));
|
|
}
|
|
|
|
/******************************************************************************
|
|
* RtlTimeToSecondsSince1970 [NTDLL.@]
|
|
*
|
|
* Converts Time to seconds since 1970.
|
|
*
|
|
* PARAMS:
|
|
* time [I]: Time to convert.
|
|
* res [O]: Pointer to a LONG to recieve the seconds since 1970.
|
|
*
|
|
* RETURNS:
|
|
* TRUE: Successfull.
|
|
* FALSE: Failure.
|
|
*/
|
|
BOOLEAN WINAPI RtlTimeToSecondsSince1970( const LARGE_INTEGER *time, PULONG res )
|
|
{
|
|
ULONGLONG tmp = ((ULONGLONG)time->s.HighPart << 32) | time->s.LowPart;
|
|
tmp = RtlLargeIntegerDivide( tmp, 10000000, NULL );
|
|
tmp -= SECS_1601_TO_1970;
|
|
if (tmp > 0xffffffff) return FALSE;
|
|
*res = (DWORD)tmp;
|
|
return TRUE;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* RtlTimeToSecondsSince1980 [NTDLL.@]
|
|
*
|
|
* Converts Time to seconds since 1980.
|
|
*
|
|
* PARAMS:
|
|
* time [I]: Time to convert.
|
|
* res [O]: Pointer to a integer to recieve the time since 1980.
|
|
*
|
|
* RETURNS:
|
|
* TRUE: Successfull
|
|
* FALSE: Failure.
|
|
*/
|
|
BOOLEAN WINAPI RtlTimeToSecondsSince1980( const LARGE_INTEGER *time, LPDWORD res )
|
|
{
|
|
ULONGLONG tmp = ((ULONGLONG)time->s.HighPart << 32) | time->s.LowPart;
|
|
tmp = RtlLargeIntegerDivide( tmp, 10000000, NULL );
|
|
tmp -= SECS_1601_to_1980;
|
|
if (tmp > 0xffffffff) return FALSE;
|
|
*res = (DWORD)tmp;
|
|
return TRUE;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* RtlSecondsSince1970ToTime [NTDLL.@]
|
|
*
|
|
* Converts seconds since 1970 to time.
|
|
*
|
|
* PARAMS:
|
|
* time [I]: Seconds since 1970 to convert.
|
|
* res [O]: Seconds since 1970 in Time.
|
|
*
|
|
* RETURNS:
|
|
* Nothing.
|
|
*/
|
|
void WINAPI RtlSecondsSince1970ToTime( DWORD time, LARGE_INTEGER *res )
|
|
{
|
|
ULONGLONG secs = RtlExtendedIntegerMultiply( time + SECS_1601_TO_1970, 10000000 );
|
|
res->s.LowPart = (DWORD)secs;
|
|
res->s.HighPart = (DWORD)(secs >> 32);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* RtlSecondsSince1980ToTime [NTDLL.@]
|
|
*
|
|
* Converts seconds since 1980 to time.
|
|
*
|
|
* PARAMS:
|
|
* time [I]: Seconds since 1980 to convert.
|
|
* res [O]: Seconds since 1980 in Time.
|
|
*
|
|
* RETURNS:
|
|
* Nothing.
|
|
*/
|
|
void WINAPI RtlSecondsSince1980ToTime( DWORD time, LARGE_INTEGER *res )
|
|
{
|
|
ULONGLONG secs = RtlExtendedIntegerMultiply( time + SECS_1601_to_1980, 10000000 );
|
|
res->s.LowPart = (DWORD)secs;
|
|
res->s.HighPart = (DWORD)(secs >> 32);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* RtlTimeToElapsedTimeFields [NTDLL.@]
|
|
*
|
|
* ??
|
|
*
|
|
* PARAMS:
|
|
* liTime [?]: ??
|
|
* TimeFields [?]: ??
|
|
*
|
|
* RETURNS:
|
|
* Nothing.
|
|
*
|
|
* FIXME:
|
|
* Prototype guessed.
|
|
*/
|
|
VOID WINAPI RtlTimeToElapsedTimeFields(
|
|
PLARGE_INTEGER liTime,
|
|
PTIME_FIELDS TimeFields)
|
|
{
|
|
FIXME("(%p,%p): stub\n",liTime,TimeFields);
|
|
}
|
|
|
|
/***********************************************************************
|
|
* NtQuerySystemTime [NTDLL.@]
|
|
* ZwQuerySystemTime [NTDLL.@]
|
|
*
|
|
* Gets the current system time.
|
|
*
|
|
* PARAMS:
|
|
* time [O]: The current system time.
|
|
*
|
|
* RETURNS:
|
|
* Status.
|
|
*/
|
|
NTSTATUS WINAPI NtQuerySystemTime( PLARGE_INTEGER time )
|
|
{
|
|
ULONGLONG secs;
|
|
struct timeval now;
|
|
|
|
gettimeofday( &now, 0 );
|
|
secs = RtlExtendedIntegerMultiply( now.tv_sec+SECS_1601_TO_1970, 10000000 ) + now.tv_usec * 10;
|
|
time->s.LowPart = (DWORD)secs;
|
|
time->s.HighPart = (DWORD)(secs >> 32);
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* TIME_GetBias [internal]
|
|
*
|
|
* Helper function calculates delta local time from UTC.
|
|
*
|
|
* PARAMS:
|
|
* utc [I]: The current utc time.
|
|
* pdaylight [I]: Local daylight.
|
|
*
|
|
* RETURNS:
|
|
* The bias for the current timezone.
|
|
*/
|
|
static int TIME_GetBias(time_t utc, int *pdaylight)
|
|
{
|
|
struct tm *ptm = localtime(&utc);
|
|
*pdaylight = ptm->tm_isdst; /* daylight for local timezone */
|
|
ptm = gmtime(&utc);
|
|
ptm->tm_isdst = *pdaylight; /* use local daylight, not that of Greenwich */
|
|
return (int)(utc-mktime(ptm));
|
|
}
|
|
|
|
/***********************************************************************
|
|
* TIME_GetTZAsStr [internal]
|
|
*
|
|
* Helper function that returns the given timezone as a string.
|
|
*
|
|
* PARAMS:
|
|
* utc [I]: The current utc time.
|
|
* bias [I]: The bias of the current timezone.
|
|
* dst [I]: ??
|
|
*
|
|
* RETURNS:
|
|
* Timezone name.
|
|
*
|
|
* NOTES:
|
|
* This could be done with a hash table instead of merely iterating through a
|
|
* table, however with the small amount of entries (60 or so) I didn't think
|
|
* it was worth it.
|
|
*/
|
|
static const WCHAR* TIME_GetTZAsStr (time_t utc, int bias, int dst)
|
|
{
|
|
char psTZName[7];
|
|
struct tm *ptm = localtime(&utc);
|
|
int i;
|
|
|
|
if (!strftime (psTZName, 7, "%Z", ptm))
|
|
return (NULL);
|
|
|
|
for (i=0; i<(sizeof(TZ_INFO) / sizeof(struct tagTZ_INFO)); i++)
|
|
{
|
|
if ( strcmp(TZ_INFO[i].psTZFromUnix, psTZName) == 0 &&
|
|
TZ_INFO[i].bias == bias &&
|
|
TZ_INFO[i].dst == dst
|
|
)
|
|
return TZ_INFO[i].psTZWindows;
|
|
}
|
|
|
|
return (NULL);
|
|
}
|
|
|
|
/***********************************************************************
|
|
* RtlQueryTimeZoneInformation [NTDLL.@]
|
|
*
|
|
* Returns the timezone.
|
|
*
|
|
* PARAMS:
|
|
* tzinfo [O]: Retrieves the timezone info.
|
|
*
|
|
* RETURNS:
|
|
* Status.
|
|
*/
|
|
NTSTATUS WINAPI RtlQueryTimeZoneInformation(LPTIME_ZONE_INFORMATION tzinfo)
|
|
{
|
|
time_t gmt;
|
|
int bias, daylight;
|
|
const WCHAR *psTZ;
|
|
|
|
memset(tzinfo, 0, sizeof(TIME_ZONE_INFORMATION));
|
|
|
|
gmt = time(NULL);
|
|
bias = TIME_GetBias(gmt, &daylight);
|
|
|
|
tzinfo->Bias = -bias / 60;
|
|
tzinfo->StandardBias = 0;
|
|
tzinfo->DaylightBias = -60;
|
|
psTZ = TIME_GetTZAsStr (gmt, (-bias/60), daylight);
|
|
if (psTZ) strcpyW( tzinfo->StandardName, psTZ );
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* RtlSetTimeZoneInformation [NTDLL.@]
|
|
*
|
|
* Sets the current time zone.
|
|
*
|
|
* PARAMS:
|
|
* tzinfo [I]: Timezone information used to set timezone.
|
|
*
|
|
* RETURNS:
|
|
* Status.
|
|
*
|
|
* BUGS:
|
|
* Uses the obsolete unix timezone structure and tz_dsttime member.
|
|
*/
|
|
NTSTATUS WINAPI RtlSetTimeZoneInformation( const TIME_ZONE_INFORMATION *tzinfo )
|
|
{
|
|
struct timezone tz;
|
|
|
|
tz.tz_minuteswest = tzinfo->Bias;
|
|
#ifdef DST_NONE
|
|
tz.tz_dsttime = DST_NONE;
|
|
#else
|
|
tz.tz_dsttime = 0;
|
|
#endif
|
|
if(!settimeofday(NULL, &tz))
|
|
return STATUS_SUCCESS;
|
|
return STATUS_PRIVILEGE_NOT_HELD;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* NtSetSystemTime [NTDLL.@]
|
|
* ZwSetSystemTime [NTDLL.@]
|
|
*
|
|
* Sets the system time.
|
|
*
|
|
* PARAM:
|
|
* NewTime [I]: The time to set the system time to.
|
|
* OldTime [O]: Optional (ie. can be NULL). Old Time.
|
|
*
|
|
* RETURNS:
|
|
* Status.
|
|
*/
|
|
NTSTATUS WINAPI NtSetSystemTime(const LARGE_INTEGER *NewTime, LARGE_INTEGER *OldTime)
|
|
{
|
|
TIME_FIELDS tf;
|
|
struct timeval tv;
|
|
struct timezone tz;
|
|
struct tm t;
|
|
time_t sec, oldsec;
|
|
int dst, bias;
|
|
int err;
|
|
|
|
/* Return the old time if necessary */
|
|
if(OldTime)
|
|
NtQuerySystemTime(OldTime);
|
|
|
|
RtlTimeToTimeFields(NewTime, &tf);
|
|
|
|
/* call gettimeofday to get the current timezone */
|
|
gettimeofday(&tv, &tz);
|
|
oldsec = tv.tv_sec;
|
|
/* get delta local time from utc */
|
|
bias = TIME_GetBias(oldsec, &dst);
|
|
|
|
/* get the number of seconds */
|
|
t.tm_sec = tf.Second;
|
|
t.tm_min = tf.Minute;
|
|
t.tm_hour = tf.Hour;
|
|
t.tm_mday = tf.Day;
|
|
t.tm_mon = tf.Month - 1;
|
|
t.tm_year = tf.Year - 1900;
|
|
t.tm_isdst = dst;
|
|
sec = mktime (&t);
|
|
/* correct for timezone and daylight */
|
|
sec += bias;
|
|
|
|
/* set the new time */
|
|
tv.tv_sec = sec;
|
|
tv.tv_usec = tf.Milliseconds * 1000;
|
|
|
|
/* error and sanity check*/
|
|
if(sec == (time_t)-1 || abs((int)(sec-oldsec)) > SETTIME_MAX_ADJUST) {
|
|
err = 2;
|
|
} else {
|
|
#ifdef HAVE_SETTIMEOFDAY
|
|
err = settimeofday(&tv, NULL); /* 0 is OK, -1 is error */
|
|
if(err == 0)
|
|
return STATUS_SUCCESS;
|
|
#else
|
|
err = 1;
|
|
#endif
|
|
}
|
|
|
|
ERR("Cannot set time to %d/%d/%d %d:%d:%d Time adjustment %ld %s\n",
|
|
tf.Year, tf.Month, tf.Day, tf.Hour, tf.Minute, tf.Second,
|
|
sec-oldsec, err == -1 ? "No Permission" :
|
|
sec == (time_t)-1 ? "" : "is too large." );
|
|
|
|
if(err == 2)
|
|
return STATUS_INVALID_PARAMETER;
|
|
else if(err == -1)
|
|
return STATUS_PRIVILEGE_NOT_HELD;
|
|
else
|
|
return STATUS_NOT_IMPLEMENTED;
|
|
}
|