UUID_TIME(3) Programmers Manual UUID_TIME(3)
NAME
uuid_time - extract the time at which the UUID was created
SYNOPSIS
#include <uuid.h>
time_t uuid_time(uuid_t uu, struct timeval *ret_tv)
DESCRIPTION
The uuid_time() function extracts the time at which the supplied time-based UUID uu was created. Note that the
UUID creation time is only encoded within certain types of UUIDs. This function can only reasonably expect to
extract the creation time for UUIDs created with the uuid_generate_time(3) and uuid_generate_time_safe(3)
functions. It may or may not work with UUIDs created by other mechanisms.
RETURN VALUE
The time at which the UUID was created, in seconds since January 1, 1970 GMT (the epoch), is returned (see
time(2)). The time at which the UUID was created, in seconds and microseconds since the epoch, is also stored in
the location pointed to by ret_tv (see gettimeofday(2)).
AUTHORS
Theodore Y. Ts’o
SEE ALSO
uuid(3), uuid_clear(3), uuid_compare(3), uuid_copy(3), uuid_generate(3), uuid_is_null(3), uuid_parse(3),
uuid_unparse(3)
REPORTING BUGS
For bug reports, use the issue tracker at [34mhttps://github.com/util-linux/util-linux/issues.
AVAILABILITY
The libuuid library is part of the util-linux package since version 2.15.1. It can be downloaded from [34mLinux
[34mKernel Archive <https://www.kernel.org/pub/linux/utils/util-linux/>.
util-linux 2.39 2022-05-11 UUID_TIME(3)
NAME
uuid_time - extract the time at which the UUID was created
SYNOPSIS
#include <uuid.h>
time_t uuid_time(uuid_t uu, struct timeval *ret_tv)
DESCRIPTION
The uuid_time() function extracts the time at which the supplied time-based UUID uu was created. Note that the
UUID creation time is only encoded within certain types of UUIDs. This function can only reasonably expect to
extract the creation time for UUIDs created with the uuid_generate_time(3) and uuid_generate_time_safe(3)
functions. It may or may not work with UUIDs created by other mechanisms.
RETURN VALUE
The time at which the UUID was created, in seconds since January 1, 1970 GMT (the epoch), is returned (see
time(2)). The time at which the UUID was created, in seconds and microseconds since the epoch, is also stored in
the location pointed to by ret_tv (see gettimeofday(2)).
AUTHORS
Theodore Y. Ts’o
SEE ALSO
uuid(3), uuid_clear(3), uuid_compare(3), uuid_copy(3), uuid_generate(3), uuid_is_null(3), uuid_parse(3),
uuid_unparse(3)
REPORTING BUGS
For bug reports, use the issue tracker at [34mhttps://github.com/util-linux/util-linux/issues.
AVAILABILITY
The libuuid library is part of the util-linux package since version 2.15.1. It can be downloaded from [34mLinux
[34mKernel Archive <https://www.kernel.org/pub/linux/utils/util-linux/>.
util-linux 2.39 2022-05-11 UUID_TIME(3)