diff options
Diffstat (limited to 'lib/util/time.c')
| -rw-r--r-- | lib/util/time.c | 128 |
1 files changed, 108 insertions, 20 deletions
diff --git a/lib/util/time.c b/lib/util/time.c index 978d73cc0a1..a001e5f66e0 100644 --- a/lib/util/time.c +++ b/lib/util/time.c @@ -32,6 +32,14 @@ #define TIME_T_MIN 0 #endif +#if (SIZEOF_LONG == 8) +#define TIME_FIXUP_CONSTANT_INT 11644473600L +#elif (SIZEOF_LONG_LONG == 8) +#define TIME_FIXUP_CONSTANT_INT 11644473600LL +#endif + + + /* * we use the INT32_MAX here as on 64 bit systems, * gmtime() fails with INT64_MAX @@ -64,27 +72,40 @@ _PUBLIC_ void GetTimeOfDay(struct timeval *tval) #define TIME_FIXUP_CONSTANT 11644473600LL -/** -interpret an 8 byte "filetime" structure to a time_t -It's originally in "100ns units since jan 1st 1601" -**/ -_PUBLIC_ time_t nt_time_to_unix(NTTIME nt) +time_t convert_timespec_to_time_t(struct timespec ts) { - if (nt == 0) { - return 0; - } - if (nt == -1LL) { - return (time_t)-1; + /* 1 ns == 1,000,000,000 - one thousand millionths of a second. + increment if it's greater than 500 millionth of a second. */ + if (ts.tv_nsec > 500000000) { + return ts.tv_sec + 1; } - nt += 1000*1000*10/2; - nt /= 1000*1000*10; - nt -= TIME_FIXUP_CONSTANT; + return ts.tv_sec; +} - if (TIME_T_MIN > nt || nt > TIME_T_MAX) { - return 0; - } +struct timespec convert_time_t_to_timespec(time_t t) +{ + struct timespec ts; + ts.tv_sec = t; + ts.tv_nsec = 0; + return ts; +} - return (time_t)nt; + + +/** + Interpret an 8 byte "filetime" structure to a time_t + It's originally in "100ns units since jan 1st 1601" + + An 8 byte value of 0xffffffffffffffff will be returned as a timespec of + + tv_sec = 0 + tv_nsec = 0; + + Returns GMT. +**/ +time_t nt_time_to_unix(NTTIME nt) +{ + return convert_timespec_to_time_t(nt_time_to_unix_timespec(&nt)); } @@ -99,14 +120,20 @@ _PUBLIC_ void unix_to_nt_time(NTTIME *nt, time_t t) if (t == (time_t)-1) { *nt = (NTTIME)-1LL; return; - } + } + + if (t == TIME_T_MAX) { + *nt = 0x7fffffffffffffffLL; + return; + } + if (t == 0) { *nt = 0; return; } t2 = t; - t2 += TIME_FIXUP_CONSTANT; + t2 += TIME_FIXUP_CONSTANT_INT; t2 *= 1000*1000*10; *nt = t2; @@ -218,7 +245,7 @@ _PUBLIC_ void push_dos_date3(uint8_t *buf,int offset,time_t unixdate, int zone_o /******************************************************************* interpret a 32 bit dos packed date/time to some parameters ********************************************************************/ -static void interpret_dos_date(uint32_t date,int *year,int *month,int *day,int *hour,int *minute,int *second) +void interpret_dos_date(uint32_t date,int *year,int *month,int *day,int *hour,int *minute,int *second) { uint32_t p0,p1,p2,p3; @@ -295,6 +322,10 @@ _PUBLIC_ char *http_timestring(TALLOC_CTX *mem_ctx, time_t t) char tempTime[60]; struct tm *tm = localtime(&t); + if (t == TIME_T_MAX) { + return talloc_strdup(mem_ctx, "never"); + } + if (!tm) { return talloc_asprintf(mem_ctx,"%ld seconds since the Epoch",(long)t); } @@ -613,6 +644,50 @@ _PUBLIC_ int get_time_zone(time_t t) return tm_diff(&tm_utc,tm); } +struct timespec nt_time_to_unix_timespec(NTTIME *nt) +{ + int64_t d; + struct timespec ret; + + if (*nt == 0 || *nt == (int64_t)-1) { + ret.tv_sec = 0; + ret.tv_nsec = 0; + return ret; + } + + d = (int64_t)*nt; + /* d is now in 100ns units, since jan 1st 1601". + Save off the ns fraction. */ + + /* + * Take the last seven decimal digits and multiply by 100. + * to convert from 100ns units to 1ns units. + */ + ret.tv_nsec = (long) ((d % (1000 * 1000 * 10)) * 100); + + /* Convert to seconds */ + d /= 1000*1000*10; + + /* Now adjust by 369 years to make the secs since 1970 */ + d -= TIME_FIXUP_CONSTANT_INT; + + if (d <= (int64_t)TIME_T_MIN) { + ret.tv_sec = TIME_T_MIN; + ret.tv_nsec = 0; + return ret; + } + + if (d >= (int64_t)TIME_T_MAX) { + ret.tv_sec = TIME_T_MAX; + ret.tv_nsec = 0; + return ret; + } + + ret.tv_sec = (time_t)d; + return ret; +} + + /** check if 2 NTTIMEs are equal. */ @@ -620,3 +695,16 @@ bool nt_time_equal(NTTIME *t1, NTTIME *t2) { return *t1 == *t2; } + +/** + Check if it's a null timespec. +**/ + +bool null_timespec(struct timespec ts) +{ + return ts.tv_sec == 0 || + ts.tv_sec == (time_t)0xFFFFFFFF || + ts.tv_sec == (time_t)-1; +} + + |