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1c79356b 1/*
2d21ac55 2 * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
5d5c5d0d 3 *
2d21ac55 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
1c79356b 5 *
2d21ac55
A
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
8f6c56a5 14 *
2d21ac55
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15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
8f6c56a5
A
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
2d21ac55
A
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
8f6c56a5 25 *
2d21ac55 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
1c79356b 27 */
1c79356b
A
28#include <sys/param.h>
29#include <sys/systm.h>
30#include <sys/kernel.h>
1c79356b 31#include <sys/malloc.h>
1c79356b 32#include <sys/types.h>
9bccf70c 33
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34#include <pexpert/pexpert.h>
35
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36#include "hfs.h"
37#include "hfs_dbg.h"
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38#include "hfscommon/headers/FileMgrInternal.h"
39
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40/*
41 * gTimeZone should only be used for HFS volumes!
42 * It is initialized when an HFS volume is mounted.
43 */
44struct timezone gTimeZone = {8*60,1};
45
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46/*
47 * GetTimeUTC - get the GMT Mac OS time (in seconds since 1/1/1904)
48 *
49 * called by the Catalog Manager when creating/updating HFS Plus records
50 */
2d21ac55 51u_int32_t GetTimeUTC(void)
1c79356b 52{
91447636
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53 struct timeval tv;
54
55 microtime(&tv);
56
57 return (tv.tv_sec + MAC_GMT_FACTOR);
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58}
59
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60
61/*
62 * LocalToUTC - convert from Mac OS local time to Mac OS GMT time.
63 * This should only be called for HFS volumes (not for HFS Plus).
64 */
2d21ac55 65u_int32_t LocalToUTC(u_int32_t localTime)
1c79356b 66{
2d21ac55 67 u_int32_t gtime = localTime;
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68
69 if (gtime != 0) {
70 gtime += (gTimeZone.tz_minuteswest * 60);
71 /*
72 * We no longer do DST adjustments here since we don't
73 * know if time supplied needs adjustment!
74 *
75 * if (gTimeZone.tz_dsttime)
76 * gtime -= 3600;
77 */
78 }
79 return (gtime);
80}
81
82/*
83 * UTCToLocal - convert from Mac OS GMT time to Mac OS local time.
84 * This should only be called for HFS volumes (not for HFS Plus).
85 */
2d21ac55 86u_int32_t UTCToLocal(u_int32_t utcTime)
1c79356b 87{
2d21ac55 88 u_int32_t ltime = utcTime;
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89
90 if (ltime != 0) {
91 ltime -= (gTimeZone.tz_minuteswest * 60);
92 /*
93 * We no longer do DST adjustments here since we don't
94 * know if time supplied needs adjustment!
95 *
96 * if (gTimeZone.tz_dsttime)
97 * ltime += 3600;
98 */
99 }
100 return (ltime);
101}
102
103/*
104 * to_bsd_time - convert from Mac OS time (seconds since 1/1/1904)
105 * to BSD time (seconds since 1/1/1970)
106 */
91447636 107time_t to_bsd_time(u_int32_t hfs_time)
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A
108{
109 u_int32_t gmt = hfs_time;
110
111 if (gmt > MAC_GMT_FACTOR)
112 gmt -= MAC_GMT_FACTOR;
113 else
114 gmt = 0; /* don't let date go negative! */
115
91447636 116 return (time_t)gmt;
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117}
118
119/*
120 * to_hfs_time - convert from BSD time (seconds since 1/1/1970)
121 * to Mac OS time (seconds since 1/1/1904)
122 */
91447636 123u_int32_t to_hfs_time(time_t bsd_time)
1c79356b 124{
91447636 125 u_int32_t hfs_time = (u_int32_t)bsd_time;
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126
127 /* don't adjust zero - treat as uninitialzed */
128 if (hfs_time != 0)
129 hfs_time += MAC_GMT_FACTOR;
130
131 return (hfs_time);
132}
133
134
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135Ptr NewPtrSysClear (Size byteCount)
136{
137 Ptr tmptr;
138 MALLOC (tmptr, Ptr, byteCount, M_TEMP, M_WAITOK);
139 if (tmptr)
140 bzero(tmptr, byteCount);
141 return tmptr;
142}
143
144
145
146Ptr NewPtr (Size byteCount)
147{
148 Ptr tmptr;
149 MALLOC (tmptr, Ptr, byteCount, M_TEMP, M_WAITOK);
150 return tmptr;
151}
152
153
154void DisposePtr (Ptr p)
155{
156 FREE (p, M_TEMP);
157}
158
159
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160void
161DebugStr(
b0d623f7 162 const char * debuggerMsg
2d21ac55 163 )
1c79356b 164{
b0d623f7 165 kprintf ("*** Mac OS Debugging Message: %s\n", debuggerMsg);
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166 DEBUG_BREAK;
167}
168