UUID_TIME(3) Programmer's 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
https://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 Linux Kernel Archive
<https://www.kernel.org/pub/linux/utils/util-linux/>.
util-linux 2.38.1 2022-05-11 UUID_TIME(3)
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