| /** @file |
| * |
| * Basic implementation of RFC 4122, see |
| * https://www.ietf.org/rfc/rfc4122.txt |
| * |
| * @section license License |
| * |
| * 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. |
| */ |
| #include <openssl/rand.h> |
| |
| #include "tscore/ink_error.h" |
| #include "tscore/ink_uuid.h" |
| |
| void |
| ATSUuid::initialize(TSUuidVersion v) |
| { |
| switch (v) { |
| case TS_UUID_UNDEFINED: |
| ink_abort("Don't initialize to undefined UUID variant!"); |
| break; |
| case TS_UUID_V1: |
| case TS_UUID_V2: |
| case TS_UUID_V3: |
| case TS_UUID_V5: |
| ink_zero(_uuid.data); // Not properly implemented yet, so set it to the Nil UUID |
| break; |
| case TS_UUID_V4: |
| RAND_bytes(_uuid.data, sizeof(_uuid.data)); |
| _uuid.clockSeqAndReserved = static_cast<uint8_t>((_uuid.clockSeqAndReserved & 0x3F) | 0x80); |
| _uuid.timeHighAndVersion = static_cast<uint16_t>((_uuid.timeHighAndVersion & 0x0FFF) | 0x4000); |
| |
| break; |
| } |
| |
| _version = _toString(_string) ? v : TS_UUID_UNDEFINED; |
| } |
| |
| // Copy assignment |
| ATSUuid & |
| ATSUuid::operator=(const ATSUuid &other) |
| { |
| if (this != &other) { // Self assignment guard |
| memcpy(_uuid.data, other._uuid.data, sizeof(_uuid.data)); |
| memcpy(_string, other._string, sizeof(_string)); |
| _version = other._version; |
| } |
| |
| return *this; |
| } |
| |
| bool |
| ATSUuid::parseString(const char *str) |
| { |
| int cnt = sscanf(str, "%08x-%04hx-%04hx-%02hhx%02hhx-%02hhx%02hhx%02hhx%02hhx%02hhx%02hhx", &_uuid.timeLow, &_uuid.timeMid, |
| &_uuid.timeHighAndVersion, &_uuid.clockSeqAndReserved, &_uuid.clockSeqLow, &_uuid.node[0], &_uuid.node[1], |
| &_uuid.node[2], &_uuid.node[3], &_uuid.node[4], &_uuid.node[5]); |
| |
| if ((11 == cnt) && _toString(_string)) { |
| switch (_uuid.timeHighAndVersion >> 12) { |
| case 1: |
| _version = TS_UUID_V1; |
| break; |
| case 2: |
| _version = TS_UUID_V2; |
| break; |
| case 3: |
| _version = TS_UUID_V3; |
| break; |
| case 4: |
| _version = TS_UUID_V4; |
| break; |
| case 5: |
| _version = TS_UUID_V5; |
| break; |
| default: |
| _version = TS_UUID_UNDEFINED; |
| break; |
| } |
| } else { |
| _version = TS_UUID_UNDEFINED; |
| } |
| |
| return (TS_UUID_UNDEFINED != _version); |
| } |