38 строки
1.2 KiB
C
38 строки
1.2 KiB
C
// Copyright (c) Microsoft. All rights reserved.
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// Licensed under the MIT license. See LICENSE file in the project root for full license information.
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <uuid/uuid.h>
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#include "azure_macro_utils/macro_utils.h"
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#include "azure_c_shared_utility/uniqueid.h"
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#include "azure_c_shared_utility/xlogging.h"
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MU_DEFINE_ENUM_STRINGS(UNIQUEID_RESULT, UNIQUEID_RESULT_VALUES);
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UNIQUEID_RESULT UniqueId_Generate(char* uid, size_t len)
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{
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UNIQUEID_RESULT result;
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/* Codes_SRS_UNIQUEID_07_002: [If uid is NULL then UniqueId_Generate shall return UNIQUEID_INVALID_ARG] */
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/* Codes_SRS_UNIQUEID_07_003: [If len is less then 37 then UniqueId_Generate shall return UNIQUEID_INVALID_ARG] */
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if (uid == NULL || len < 37)
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{
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result = UNIQUEID_INVALID_ARG;
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LogError("Buffer Size is Null. (result = %" PRI_MU_ENUM ")", MU_ENUM_VALUE(UNIQUEID_RESULT, result));
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}
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else
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{
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uuid_t uuidVal;
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uuid_generate(uuidVal);
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/* Codes_SRS_UNIQUEID_07_001: [UniqueId_Generate shall create a unique Id 36 character long string.] */
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memset(uid, 0, len);
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uuid_unparse(uuidVal, uid);
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result = UNIQUEID_OK;
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}
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return result;
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}
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