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-rw-r--r--fs/udf/udftime.c59
1 files changed, 31 insertions, 28 deletions
diff --git a/fs/udf/udftime.c b/fs/udf/udftime.c
index adcb87c2da7e..ce595732ba6f 100644
--- a/fs/udf/udftime.c
+++ b/fs/udf/udftime.c
@@ -18,8 +18,10 @@
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
22 * 10/04/98: added new table-based lookup after seeing how ugly the gnu code is 22 * to unix time
23 * 10/04/98: added new table-based lookup after seeing how ugly
24 * the gnu code is
23 * blf 09/27/99: ripped out all the old code and inserted new table from 25 * blf 09/27/99: ripped out all the old code and inserted new table from
24 * John Brockmeyer (without leap second corrections) 26 * John Brockmeyer (without leap second corrections)
25 * rewrote udf_stamp_to_time and fixed timezone accounting in 27 * rewrote udf_stamp_to_time and fixed timezone accounting in
@@ -55,27 +57,27 @@ static const unsigned short int __mon_yday[2][13] = {
55 57
56#define MAX_YEAR_SECONDS 69 58#define MAX_YEAR_SECONDS 69
57#define SPD 0x15180 /*3600*24 */ 59#define SPD 0x15180 /*3600*24 */
58#define SPY(y,l,s) (SPD * (365*y+l)+s) 60#define SPY(y, l, s) (SPD * (365 * y + l) + s)
59 61
60static time_t year_seconds[MAX_YEAR_SECONDS]= { 62static 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), 63/*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), 64/*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), 65/*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), 66/*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), 67/*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), 68/*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), 69/*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), 70/*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), 71/*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), 72/*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), 73/*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), 74/*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), 75/*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), 76/*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), 77/*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), 78/*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), 79/*2034*/ SPY(64, 16, 0), SPY(65, 16, 0), SPY(66, 16, 0), SPY(67, 17, 0),
78/*2038*/ SPY(68,17,0) 80/*2038*/ SPY(68, 17, 0)
79}; 81};
80 82
81extern struct timezone sys_tz; 83extern struct timezone sys_tz;
@@ -115,7 +117,7 @@ time_t *udf_stamp_to_time(time_t *dest, long *dest_usec, kernel_timestamp src)
115 return dest; 117 return dest;
116} 118}
117 119
118kernel_timestamp *udf_time_to_stamp(kernel_timestamp * dest, struct timespec ts) 120kernel_timestamp *udf_time_to_stamp(kernel_timestamp *dest, struct timespec ts)
119{ 121{
120 long int days, rem, y; 122 long int days, rem, y;
121 const unsigned short int *ip; 123 const unsigned short int *ip;
@@ -137,7 +139,7 @@ kernel_timestamp *udf_time_to_stamp(kernel_timestamp * dest, struct timespec ts)
137 dest->second = rem % 60; 139 dest->second = rem % 60;
138 y = 1970; 140 y = 1970;
139 141
140#define DIV(a,b) ((a) / (b) - ((a) % (b) < 0)) 142#define DIV(a, b) ((a) / (b) - ((a) % (b) < 0))
141#define LEAPS_THRU_END_OF(y) (DIV (y, 4) - DIV (y, 100) + DIV (y, 400)) 143#define LEAPS_THRU_END_OF(y) (DIV (y, 4) - DIV (y, 100) + DIV (y, 400))
142 144
143 while (days < 0 || days >= (__isleap(y) ? 366 : 365)) { 145 while (days < 0 || days >= (__isleap(y) ? 366 : 365)) {
@@ -145,8 +147,8 @@ kernel_timestamp *udf_time_to_stamp(kernel_timestamp * dest, struct timespec ts)
145 147
146 /* Adjust DAYS and Y to match the guessed year. */ 148 /* Adjust DAYS and Y to match the guessed year. */
147 days -= ((yg - y) * 365 149 days -= ((yg - y) * 365
148 + LEAPS_THRU_END_OF (yg - 1) 150 + LEAPS_THRU_END_OF(yg - 1)
149 - LEAPS_THRU_END_OF (y - 1)); 151 - LEAPS_THRU_END_OF(y - 1));
150 y = yg; 152 y = yg;
151 } 153 }
152 dest->year = y; 154 dest->year = y;
@@ -158,7 +160,8 @@ kernel_timestamp *udf_time_to_stamp(kernel_timestamp * dest, struct timespec ts)
158 dest->day = days + 1; 160 dest->day = days + 1;
159 161
160 dest->centiseconds = ts.tv_nsec / 10000000; 162 dest->centiseconds = ts.tv_nsec / 10000000;
161 dest->hundredsOfMicroseconds = (ts.tv_nsec / 1000 - dest->centiseconds * 10000) / 100; 163 dest->hundredsOfMicroseconds = (ts.tv_nsec / 1000 -
164 dest->centiseconds * 10000) / 100;
162 dest->microseconds = (ts.tv_nsec / 1000 - dest->centiseconds * 10000 - 165 dest->microseconds = (ts.tv_nsec / 1000 - dest->centiseconds * 10000 -
163 dest->hundredsOfMicroseconds * 100); 166 dest->hundredsOfMicroseconds * 100);
164 return dest; 167 return dest;