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-rw-r--r--fs/udf/udftime.c82
1 files changed, 40 insertions, 42 deletions
diff --git a/fs/udf/udftime.c b/fs/udf/udftime.c
index b9f3198080e9..3fd80eb66af3 100644
--- a/fs/udf/udftime.c
+++ b/fs/udf/udftime.c
@@ -18,18 +18,18 @@
18 Boston, MA 02111-1307, USA. */ 18 Boston, MA 02111-1307, USA. */
19 19
20/* 20/*
21 * dgb 10/02/98: ripped this from glibc source to help convert timestamps to unix time 21 * dgb 10/02/98: ripped this from glibc source to help convert timestamps to unix time
22 * 10/04/98: added new table-based lookup after seeing how ugly the gnu code is 22 * 10/04/98: added new table-based lookup after seeing how ugly the gnu code is
23 * blf 09/27/99: ripped out all the old code and inserted new table from 23 * blf 09/27/99: ripped out all the old code and inserted new table from
24 * John Brockmeyer (without leap second corrections) 24 * John Brockmeyer (without leap second corrections)
25 * rewrote udf_stamp_to_time and fixed timezone accounting in 25 * rewrote udf_stamp_to_time and fixed timezone accounting in
26 udf_time_to_stamp. 26 * udf_time_to_stamp.
27 */ 27 */
28 28
29/* 29/*
30 * We don't take into account leap seconds. This may be correct or incorrect. 30 * We don't take into account leap seconds. This may be correct or incorrect.
31 * For more NIST information (especially dealing with leap seconds), see: 31 * For more NIST information (especially dealing with leap seconds), see:
32 * http://www.boulder.nist.gov/timefreq/pubs/bulletin/leapsecond.htm 32 * http://www.boulder.nist.gov/timefreq/pubs/bulletin/leapsecond.htm
33 */ 33 */
34 34
35#include <linux/types.h> 35#include <linux/types.h>
@@ -54,28 +54,28 @@ static const unsigned short int __mon_yday[2][13] = {
54}; 54};
55 55
56#define MAX_YEAR_SECONDS 69 56#define MAX_YEAR_SECONDS 69
57#define SPD 0x15180 /*3600*24 */ 57#define SPD 0x15180 /*3600*24 */
58#define SPY(y,l,s) (SPD * (365*y+l)+s) 58#define SPY(y,l,s) (SPD * (365*y+l)+s)
59 59
60static time_t year_seconds[MAX_YEAR_SECONDS] = { 60static time_t year_seconds[MAX_YEAR_SECONDS]= {
61/*1970*/ SPY(0, 0, 0), SPY(1, 0, 0), SPY(2, 0, 0), SPY(3, 1, 0), 61/*1970*/ SPY( 0, 0,0), SPY( 1, 0,0), SPY( 2, 0,0), SPY( 3, 1,0),
62/*1974*/ SPY(4, 1, 0), SPY(5, 1, 0), SPY(6, 1, 0), SPY(7, 2, 0), 62/*1974*/ SPY( 4, 1,0), SPY( 5, 1,0), SPY( 6, 1,0), SPY( 7, 2,0),
63/*1978*/ SPY(8, 2, 0), SPY(9, 2, 0), SPY(10, 2, 0), SPY(11, 3, 0), 63/*1978*/ SPY( 8, 2,0), SPY( 9, 2,0), SPY(10, 2,0), SPY(11, 3,0),
64/*1982*/ SPY(12, 3, 0), SPY(13, 3, 0), SPY(14, 3, 0), SPY(15, 4, 0), 64/*1982*/ SPY(12, 3,0), SPY(13, 3,0), SPY(14, 3,0), SPY(15, 4,0),
65/*1986*/ SPY(16, 4, 0), SPY(17, 4, 0), SPY(18, 4, 0), SPY(19, 5, 0), 65/*1986*/ SPY(16, 4,0), SPY(17, 4,0), SPY(18, 4,0), SPY(19, 5,0),
66/*1990*/ SPY(20, 5, 0), SPY(21, 5, 0), SPY(22, 5, 0), SPY(23, 6, 0), 66/*1990*/ SPY(20, 5,0), SPY(21, 5,0), SPY(22, 5,0), SPY(23, 6,0),
67/*1994*/ SPY(24, 6, 0), SPY(25, 6, 0), SPY(26, 6, 0), SPY(27, 7, 0), 67/*1994*/ SPY(24, 6,0), SPY(25, 6,0), SPY(26, 6,0), SPY(27, 7,0),
68/*1998*/ SPY(28, 7, 0), SPY(29, 7, 0), SPY(30, 7, 0), SPY(31, 8, 0), 68/*1998*/ SPY(28, 7,0), SPY(29, 7,0), SPY(30, 7,0), SPY(31, 8,0),
69/*2002*/ SPY(32, 8, 0), SPY(33, 8, 0), SPY(34, 8, 0), SPY(35, 9, 0), 69/*2002*/ SPY(32, 8,0), SPY(33, 8,0), SPY(34, 8,0), SPY(35, 9,0),
70/*2006*/ SPY(36, 9, 0), SPY(37, 9, 0), SPY(38, 9, 0), SPY(39, 10, 0), 70/*2006*/ SPY(36, 9,0), SPY(37, 9,0), SPY(38, 9,0), SPY(39,10,0),
71/*2010*/ SPY(40, 10, 0), SPY(41, 10, 0), SPY(42, 10, 0), SPY(43, 11, 0), 71/*2010*/ SPY(40,10,0), SPY(41,10,0), SPY(42,10,0), SPY(43,11,0),
72/*2014*/ SPY(44, 11, 0), SPY(45, 11, 0), SPY(46, 11, 0), SPY(47, 12, 0), 72/*2014*/ SPY(44,11,0), SPY(45,11,0), SPY(46,11,0), SPY(47,12,0),
73/*2018*/ SPY(48, 12, 0), SPY(49, 12, 0), SPY(50, 12, 0), SPY(51, 13, 0), 73/*2018*/ SPY(48,12,0), SPY(49,12,0), SPY(50,12,0), SPY(51,13,0),
74/*2022*/ SPY(52, 13, 0), SPY(53, 13, 0), SPY(54, 13, 0), SPY(55, 14, 0), 74/*2022*/ SPY(52,13,0), SPY(53,13,0), SPY(54,13,0), SPY(55,14,0),
75/*2026*/ SPY(56, 14, 0), SPY(57, 14, 0), SPY(58, 14, 0), SPY(59, 15, 0), 75/*2026*/ SPY(56,14,0), SPY(57,14,0), SPY(58,14,0), SPY(59,15,0),
76/*2030*/ SPY(60, 15, 0), SPY(61, 15, 0), SPY(62, 15, 0), SPY(63, 16, 0), 76/*2030*/ SPY(60,15,0), SPY(61,15,0), SPY(62,15,0), SPY(63,16,0),
77/*2034*/ SPY(64, 16, 0), SPY(65, 16, 0), SPY(66, 16, 0), SPY(67, 17, 0), 77/*2034*/ SPY(64,16,0), SPY(65,16,0), SPY(66,16,0), SPY(67,17,0),
78/*2038*/ SPY(68, 17, 0) 78/*2038*/ SPY(68,17,0)
79}; 79};
80 80
81extern struct timezone sys_tz; 81extern struct timezone sys_tz;
@@ -83,7 +83,7 @@ extern struct timezone sys_tz;
83#define SECS_PER_HOUR (60 * 60) 83#define SECS_PER_HOUR (60 * 60)
84#define SECS_PER_DAY (SECS_PER_HOUR * 24) 84#define SECS_PER_DAY (SECS_PER_HOUR * 24)
85 85
86time_t *udf_stamp_to_time(time_t * dest, long *dest_usec, kernel_timestamp src) 86time_t *udf_stamp_to_time(time_t *dest, long *dest_usec, kernel_timestamp src)
87{ 87{
88 int yday; 88 int yday;
89 uint8_t type = src.typeAndTimezone >> 12; 89 uint8_t type = src.typeAndTimezone >> 12;
@@ -93,10 +93,11 @@ time_t *udf_stamp_to_time(time_t * dest, long *dest_usec, kernel_timestamp src)
93 offset = src.typeAndTimezone << 4; 93 offset = src.typeAndTimezone << 4;
94 /* sign extent offset */ 94 /* sign extent offset */
95 offset = (offset >> 4); 95 offset = (offset >> 4);
96 if (offset == -2047) /* unspecified offset */ 96 if (offset == -2047) /* unspecified offset */
97 offset = 0; 97 offset = 0;
98 } else 98 } else {
99 offset = 0; 99 offset = 0;
100 }
100 101
101 if ((src.year < EPOCH_YEAR) || 102 if ((src.year < EPOCH_YEAR) ||
102 (src.year >= EPOCH_YEAR + MAX_YEAR_SECONDS)) { 103 (src.year >= EPOCH_YEAR + MAX_YEAR_SECONDS)) {
@@ -107,12 +108,10 @@ time_t *udf_stamp_to_time(time_t * dest, long *dest_usec, kernel_timestamp src)
107 *dest = year_seconds[src.year - EPOCH_YEAR]; 108 *dest = year_seconds[src.year - EPOCH_YEAR];
108 *dest -= offset * 60; 109 *dest -= offset * 60;
109 110
110 yday = ((__mon_yday[__isleap(src.year)] 111 yday = ((__mon_yday[__isleap (src.year)]
111 [src.month - 1]) + (src.day - 1)); 112 [src.month - 1]) + (src.day - 1));
112 *dest += (((yday * 24) + src.hour) * 60 + src.minute) * 60 + src.second; 113 *dest += ( ( (yday * 24) + src.hour ) * 60 + src.minute ) * 60 + src.second;
113 *dest_usec = 114 *dest_usec = src.centiseconds * 10000 + src.hundredsOfMicroseconds * 100 + src.microseconds;
114 src.centiseconds * 10000 + src.hundredsOfMicroseconds * 100 +
115 src.microseconds;
116 return dest; 115 return dest;
117} 116}
118 117
@@ -145,8 +144,9 @@ kernel_timestamp *udf_time_to_stamp(kernel_timestamp * dest, struct timespec ts)
145 long int yg = y + days / 365 - (days % 365 < 0); 144 long int yg = y + days / 365 - (days % 365 < 0);
146 145
147 /* Adjust DAYS and Y to match the guessed year. */ 146 /* Adjust DAYS and Y to match the guessed year. */
148 days -= ((yg - y) * 365 + LEAPS_THRU_END_OF(yg - 1) 147 days -= ((yg - y) * 365
149 - LEAPS_THRU_END_OF(y - 1)); 148 + LEAPS_THRU_END_OF (yg - 1)
149 - LEAPS_THRU_END_OF (y - 1));
150 y = yg; 150 y = yg;
151 } 151 }
152 dest->year = y; 152 dest->year = y;
@@ -158,11 +158,9 @@ kernel_timestamp *udf_time_to_stamp(kernel_timestamp * dest, struct timespec ts)
158 dest->day = days + 1; 158 dest->day = days + 1;
159 159
160 dest->centiseconds = ts.tv_nsec / 10000000; 160 dest->centiseconds = ts.tv_nsec / 10000000;
161 dest->hundredsOfMicroseconds = 161 dest->hundredsOfMicroseconds = (ts.tv_nsec / 1000 - dest->centiseconds * 10000) / 100;
162 (ts.tv_nsec / 1000 - dest->centiseconds * 10000) / 100; 162 dest->microseconds = (ts.tv_nsec / 1000 - dest->centiseconds * 10000 -
163 dest->microseconds = 163 dest->hundredsOfMicroseconds * 100);
164 (ts.tv_nsec / 1000 - dest->centiseconds * 10000 -
165 dest->hundredsOfMicroseconds * 100);
166 return dest; 164 return dest;
167} 165}
168 166