6c03a4e4d5
specified by OpenGroup here: https://pubs.opengroup.org/onlinepubs/009629399/toc.htm Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com> Change-Id: I3bc585e7f4d41f6c2ea70e170276ab0d0399b088
76 lines
2.3 KiB
C
76 lines
2.3 KiB
C
/****************************************************************************
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* libs/libc/uuid/lib_uuid_to_string.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <stdio.h>
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#include <string.h>
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#include <uuid.h>
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* uuid_to_string
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*
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* Description:
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* Convert a binary UUID into a string representation.
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*
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* See also:
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* http://www.opengroup.org/onlinepubs/009629399/uuid_to_string.htm
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*
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****************************************************************************/
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void uuid_to_string(const uuid_t *u, char **s, uint32_t *status)
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{
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static const uuid_t nil;
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int c;
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if (status != NULL)
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{
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*status = uuid_s_ok;
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}
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/* Why allow a NULL-pointer here? */
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if (s == NULL)
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{
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return;
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}
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if (u == NULL)
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{
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u = &nil;
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}
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c = asprintf(s,
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"%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
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u->time_low, u->time_mid, u->time_hi_and_version,
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u->clock_seq_hi_and_reserved, u->clock_seq_low, u->node[0],
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u->node[1], u->node[2], u->node[3], u->node[4], u->node[5]);
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if (c == -1 && status != NULL)
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{
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*status = uuid_s_no_memory;
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}
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}
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