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Linux 2.6 - man page for uuid_time (linux section 3)

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UUID_TIME(3)				   Libuuid API				     UUID_TIME(3)

NAME
       uuid_time - extract the time at which the UUID was created

SYNOPSIS
       #include <uuid/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 cre-
       ated.  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) function.  It may or may not work  with  UUIDs  created  by
       other mechanisms.

RETURN VALUES
       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)).

AUTHOR
       Theodore Y. Ts'o

AVAILABILITY
       libuuid is part of the util-linux package since	version  2.15.1  and  is  available  from
       ftp://ftp.kernel.org/pub/linux/utils/util-linux/.

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)

util-linux				     May 2009				     UUID_TIME(3)
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