/* * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ #include <sys/param.h> #include <sys/systm.h> #include <sys/kernel.h> #include <sys/malloc.h> #include <sys/types.h> #include "hfs.h" #include "hfs_dbg.h" #include "hfscommon/headers/FileMgrInternal.h" /* * gTimeZone should only be used for HFS volumes! * It is initialized when an HFS volume is mounted. */ struct timezone gTimeZone = {8*60,1}; /* * GetTimeUTC - get the GMT Mac OS time (in seconds since 1/1/1904) * * called by the Catalog Manager when creating/updating HFS Plus records */ UInt32 GetTimeUTC(void) { struct timeval tv; microtime(&tv); return (tv.tv_sec + MAC_GMT_FACTOR); } /* * LocalToUTC - convert from Mac OS local time to Mac OS GMT time. * This should only be called for HFS volumes (not for HFS Plus). */ UInt32 LocalToUTC(UInt32 localTime) { UInt32 gtime = localTime; if (gtime != 0) { gtime += (gTimeZone.tz_minuteswest * 60); /* * We no longer do DST adjustments here since we don't * know if time supplied needs adjustment! * * if (gTimeZone.tz_dsttime) * gtime -= 3600; */ } return (gtime); } /* * UTCToLocal - convert from Mac OS GMT time to Mac OS local time. * This should only be called for HFS volumes (not for HFS Plus). */ UInt32 UTCToLocal(UInt32 utcTime) { UInt32 ltime = utcTime; if (ltime != 0) { ltime -= (gTimeZone.tz_minuteswest * 60); /* * We no longer do DST adjustments here since we don't * know if time supplied needs adjustment! * * if (gTimeZone.tz_dsttime) * ltime += 3600; */ } return (ltime); } /* * to_bsd_time - convert from Mac OS time (seconds since 1/1/1904) * to BSD time (seconds since 1/1/1970) */ time_t to_bsd_time(u_int32_t hfs_time) { u_int32_t gmt = hfs_time; if (gmt > MAC_GMT_FACTOR) gmt -= MAC_GMT_FACTOR; else gmt = 0; /* don't let date go negative! */ return (time_t)gmt; } /* * to_hfs_time - convert from BSD time (seconds since 1/1/1970) * to Mac OS time (seconds since 1/1/1904) */ u_int32_t to_hfs_time(time_t bsd_time) { u_int32_t hfs_time = (u_int32_t)bsd_time; /* don't adjust zero - treat as uninitialzed */ if (hfs_time != 0) hfs_time += MAC_GMT_FACTOR; return (hfs_time); } Ptr NewPtrSysClear (Size byteCount) { Ptr tmptr; MALLOC (tmptr, Ptr, byteCount, M_TEMP, M_WAITOK); if (tmptr) bzero(tmptr, byteCount); return tmptr; } Ptr NewPtr (Size byteCount) { Ptr tmptr; MALLOC (tmptr, Ptr, byteCount, M_TEMP, M_WAITOK); return tmptr; } void DisposePtr (Ptr p) { FREE (p, M_TEMP); } void DebugStr (ConstStr255Param debuggerMsg) { kprintf ("*** Mac OS Debugging Message: %s\n", &debuggerMsg[1]); DEBUG_BREAK; }