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annotate OrthancFramework/Sources/MallocMemoryBuffer.cpp @ 4942:bd7ad1cb40b6

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Improved DICOM authorization checks when multiple modalities are declared with the same AET
author Alain Mazy <am@osimis.io>
date Wed, 16 Mar 2022 10:55:13 +0100
parents c1b19f95e166
children 0ea402b4d901
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2022 Osimis S.A., Belgium
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6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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7 *
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8 * This program is free software: you can redistribute it and/or
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9 * modify it under the terms of the GNU Lesser General Public License
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10 * as published by the Free Software Foundation, either version 3 of
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11 * the License, or (at your option) any later version.
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12 *
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13 * This program is distributed in the hope that it will be useful, but
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 * Lesser General Public License for more details.
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17 *
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18 * You should have received a copy of the GNU Lesser General Public
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19 * License along with this program. If not, see
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20 * <http://www.gnu.org/licenses/>.
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21 **/
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24 #include "PrecompiledHeaders.h"
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25 #include "MallocMemoryBuffer.h"
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26
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27 #include "OrthancException.h"
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28
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29 #include <string.h>
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32 namespace Orthanc
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33 {
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34 MallocMemoryBuffer::MallocMemoryBuffer() :
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35 buffer_(NULL),
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36 size_(0),
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37 free_(NULL)
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38 {
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39 }
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42 void MallocMemoryBuffer::Clear()
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43 {
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44 if (size_ != 0)
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45 {
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46 if (free_ == NULL)
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47 {
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48 throw OrthancException(ErrorCode_InternalError);
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49 }
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50
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51 free_(buffer_);
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52 buffer_ = NULL;
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53 size_ = 0;
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54 free_ = NULL;
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55 }
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56 }
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59 void MallocMemoryBuffer::Assign(void* buffer,
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60 uint64_t size,
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61 FreeFunction freeFunction)
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62 {
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63 Clear();
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64
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65 if (size != 0 &&
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66 buffer == NULL)
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67 {
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68 throw OrthancException(ErrorCode_NullPointer);
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69 }
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70
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71 if (static_cast<uint64_t>(static_cast<size_t>(size)) != size)
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72 {
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73 freeFunction(buffer);
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74 throw OrthancException(ErrorCode_InternalError, "Buffer larger than 4GB, which is too large for Orthanc running in 32bits");
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75 }
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76
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77 buffer_ = buffer;
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78 size_ = size;
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79 free_ = freeFunction;
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81 if (size_ != 0 &&
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82 free_ == NULL)
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83 {
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84 throw OrthancException(ErrorCode_ParameterOutOfRange, "No valid free() function provided");
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85 }
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86 }
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89 void MallocMemoryBuffer::MoveToString(std::string& target)
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90 {
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91 target.resize(size_);
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93 if (size_ != 0)
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94 {
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95 memcpy(&target[0], buffer_, size_);
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96 }
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97
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98 Clear();
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99 }
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100 }