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.\" Copyright (c) 2002 Marcel Moolenaar
.\" Copyright (c) 2002 Hiten Mahesh Pandya
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
.\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
.\" AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" $FreeBSD$
.\"
.Dd October 29, 2002
.Dt UUID 3
.Os
.Sh NAME
.Nm uuid_compare , uuid_create , uuid_create_nil , uuid_equal ,
.Nm uuid_from_string , uuid_hash , uuid_is_nil , uuid_to_string
.Nd DCE 1.1 compliant UUID functions
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In uuid.h
.Ft int32_t
.Fn uuid_compare "uuid_t *uuid1" "uuid_t *uuid2" "uint32_t *status"
.Ft void
.Fn uuid_create "uuid_t *uuid" "uint32_t *status"
.Ft void
.Fn uuid_create_nil "uuid_t *uuid" "uint32_t *status"
.Ft int32_t
.Fn uuid_equal "uuid_t *uuid1" "uuid_t *uuid2" "uint32_t *status"
.Ft void
.Fn uuid_from_string "const char *str" "uuid_t *uuid" "uint32_t *status"
.Ft uint16_t
.Fn uuid_hash "uuid_t *uuid" "uint32_t *status"
.Ft int32_t
.Fn uuid_is_nil "uuid_t *uuid" "uint32_t *status"
.Ft void
.Fn uuid_to_string "uuid_t *uuid" "char **str" "uint32_t *status"
.Sh DESCRIPTION
The family of DCE 1.1 compliant UUID functions allow applications to operate
on universally unique identifiers, or UUIDs.
The
.Fn uuid_create
and
.Fn uuid_create_nil
functions create UUIDs.
The
.Fn uuid_compare ,
.Fn uuid_equal
and
.Fn uuid_is_nil
functions can be used to test UUIDs.
To convert from the binary representation to the string representation or
vice versa, use
.Fn uuid_to_string
or
.Fn uuid_from_string
respectively.
A 16-bit hash value can be obtained by calling
.Fn uuid_hash .
.Sh RETURN VALUES
The successful or unsuccessful completion of the function is returned in
the
.Fa status
argument.
Possible values are:
.Pp
.Bl -tag -width ".Dv uuid_s_invalid_string_uuid"
.It Dv uuid_s_ok
The function completed successfully.
.It Dv uuid_s_bad_version
The UUID does not have a known version.
.It Dv uuid_s_invalid_string_uuid
The string representation of an UUID is not valid.
.It Dv uuid_s_no_memory
The meaning of the code escaped the writers mind.
.El
.Sh SEE ALSO
.Xr uuidgen 1 ,
.Xr uuidgen 2
.Sh STANDARDS
The UUID functions conform to the DCE 1.1 RPC specification.
.Sh BUGS
This manpage can be improved.
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