79 lines
2.5 KiB
C
79 lines
2.5 KiB
C
/****************************************************************************
|
|
* libs/libc/uuid/lib_uuid_to_string.c
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership. The
|
|
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
|
* "License"); you may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing permissions and limitations
|
|
* under the License.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <uuid.h>
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* uuid_to_string
|
|
*
|
|
* Description:
|
|
* Convert a binary UUID into a string representation.
|
|
*
|
|
* See also:
|
|
* http://www.opengroup.org/onlinepubs/009629399/uuid_to_string.htm
|
|
*
|
|
****************************************************************************/
|
|
|
|
void uuid_to_string(FAR const uuid_t *u, FAR char **s, FAR uint32_t *status)
|
|
{
|
|
static const uuid_t nil;
|
|
int c;
|
|
|
|
if (status != NULL)
|
|
{
|
|
*status = uuid_s_ok;
|
|
}
|
|
|
|
/* Why allow a NULL-pointer here? */
|
|
|
|
if (s == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (u == NULL)
|
|
{
|
|
u = &nil;
|
|
}
|
|
|
|
c = asprintf(s,
|
|
"%08" PRIx32 "-%04" PRIx16 "-%04" PRIx16
|
|
"-%02" PRIx8 "%02" PRIx8
|
|
"-%02" PRIx8 "%02" PRIx8 "%02" PRIx8
|
|
"%02" PRIx8 "%02" PRIx8 "%02" PRIx8,
|
|
u->time_low, u->time_mid, u->time_hi_and_version,
|
|
u->clock_seq_hi_and_reserved, u->clock_seq_low, u->node[0],
|
|
u->node[1], u->node[2], u->node[3], u->node[4], u->node[5]);
|
|
if (c == -1 && status != NULL)
|
|
{
|
|
*status = uuid_s_no_memory;
|
|
}
|
|
}
|