freebsd-nq/lib/libc/uuid/uuid.3

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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
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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.\" $FreeBSD$
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.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 , 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
parameter. Possible values are:
.Pp
.Bl -tag -width 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 BUGS
This manpage can be improved.
.Sh STANDARDS
The UUID functions conform to the DCE 1.1 RPC specification.