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/*
Unix SMB/CIFS implementation.
time utility functions
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _SAMBA_TIME_H_
#define _SAMBA_TIME_H_
/* 64 bit time (100 nanosec) 1601 - cifs6.txt, section 3.5, page 30, 4 byte aligned */
typedef uint64_t NTTIME;
/**
External access to time_t_min and time_t_max.
**/
_PUBLIC_ time_t get_time_t_max(void);
/**
a gettimeofday wrapper
**/
_PUBLIC_ void GetTimeOfDay(struct timeval *tval);
/**
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);
/**
put a 8 byte filetime from a time_t
This takes GMT as input
**/
_PUBLIC_ void unix_to_nt_time(NTTIME *nt, time_t t);
/**
check if it's a null unix time
**/
_PUBLIC_ bool null_time(time_t t);
/**
check if it's a null NTTIME
**/
_PUBLIC_ bool null_nttime(NTTIME t);
/**
put a dos date into a buffer (time/date format)
This takes GMT time and puts local time in the buffer
**/
_PUBLIC_ void push_dos_date(uint8_t *buf, int offset, time_t unixdate, int zone_offset);
/**
put a dos date into a buffer (date/time format)
This takes GMT time and puts local time in the buffer
**/
_PUBLIC_ void push_dos_date2(uint8_t *buf,int offset,time_t unixdate, int zone_offset);
/**
put a dos 32 bit "unix like" date into a buffer. This routine takes
GMT and converts it to LOCAL time before putting it (most SMBs assume
localtime for this sort of date)
**/
_PUBLIC_ void push_dos_date3(uint8_t *buf,int offset,time_t unixdate, int zone_offset);
/**
create a unix date (int GMT) from a dos date (which is actually in
localtime)
**/
_PUBLIC_ time_t pull_dos_date(const uint8_t *date_ptr, int zone_offset);
/**
like make_unix_date() but the words are reversed
**/
_PUBLIC_ time_t pull_dos_date2(const uint8_t *date_ptr, int zone_offset);
/**
create a unix GMT date from a dos date in 32 bit "unix like" format
these generally arrive as localtimes, with corresponding DST
**/
_PUBLIC_ time_t pull_dos_date3(const uint8_t *date_ptr, int zone_offset);
/**
return a HTTP/1.0 time string
**/
_PUBLIC_ char *http_timestring(TALLOC_CTX *mem_ctx, time_t t);
/**
Return the date and time as a string
**/
_PUBLIC_ char *timestring(TALLOC_CTX *mem_ctx, time_t t);
/**
return a talloced string representing a NTTIME for human consumption
*/
_PUBLIC_ const char *nt_time_string(TALLOC_CTX *mem_ctx, NTTIME nt);
/**
put a NTTIME into a packet
*/
_PUBLIC_ void push_nttime(uint8_t *base, uint16_t offset, NTTIME t);
/**
pull a NTTIME from a packet
*/
_PUBLIC_ NTTIME pull_nttime(uint8_t *base, uint16_t offset);
/**
parse a nttime as a large integer in a string and return a NTTIME
*/
_PUBLIC_ NTTIME nttime_from_string(const char *s);
/**
return (tv1 - tv2) in microseconds
*/
_PUBLIC_ int64_t usec_time_diff(struct timeval *tv1, struct timeval *tv2);
/**
return a zero timeval
*/
_PUBLIC_ struct timeval timeval_zero(void);
/**
return true if a timeval is zero
*/
_PUBLIC_ bool timeval_is_zero(const struct timeval *tv);
/**
return a timeval for the current time
*/
_PUBLIC_ struct timeval timeval_current(void);
/**
return a timeval struct with the given elements
*/
_PUBLIC_ struct timeval timeval_set(uint32_t secs, uint32_t usecs);
/**
return a timeval ofs microseconds after tv
*/
_PUBLIC_ struct timeval timeval_add(const struct timeval *tv,
uint32_t secs, uint32_t usecs);
/**
return the sum of two timeval structures
*/
struct timeval timeval_sum(const struct timeval *tv1,
const struct timeval *tv2);
/**
return a timeval secs/usecs into the future
*/
_PUBLIC_ struct timeval timeval_current_ofs(uint32_t secs, uint32_t usecs);
/**
compare two timeval structures.
Return -1 if tv1 < tv2
Return 0 if tv1 == tv2
Return 1 if tv1 > tv2
*/
_PUBLIC_ int timeval_compare(const struct timeval *tv1, const struct timeval *tv2);
/**
return true if a timer is in the past
*/
_PUBLIC_ bool timeval_expired(const struct timeval *tv);
/**
return the number of seconds elapsed between two times
*/
_PUBLIC_ double timeval_elapsed2(const struct timeval *tv1, const struct timeval *tv2);
/**
return the number of seconds elapsed since a given time
*/
_PUBLIC_ double timeval_elapsed(const struct timeval *tv);
/**
return the lesser of two timevals
*/
_PUBLIC_ struct timeval timeval_min(const struct timeval *tv1,
const struct timeval *tv2);
/**
return the greater of two timevals
*/
_PUBLIC_ struct timeval timeval_max(const struct timeval *tv1,
const struct timeval *tv2);
/**
return the difference between two timevals as a timeval
if tv1 comes after tv2, then return a zero timeval
(this is *tv2 - *tv1)
*/
_PUBLIC_ struct timeval timeval_until(const struct timeval *tv1,
const struct timeval *tv2);
/**
convert a timeval to a NTTIME
*/
_PUBLIC_ NTTIME timeval_to_nttime(const struct timeval *tv);
/**
convert a NTTIME to a timeval
*/
_PUBLIC_ void nttime_to_timeval(struct timeval *tv, NTTIME t);
/**
return the UTC offset in seconds west of UTC, or 0 if it cannot be determined
*/
_PUBLIC_ int get_time_zone(time_t t);
#endif /* _SAMBA_TIME_H_ */
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