NS-3 based Named Data Networking (NDN) simulator
ndnSIM 2.3: NDN, CCN, CCNx, content centric networks
API Documentation
hex-encode.cpp
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1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
22 #include "hex-encode.hpp"
23 
24 namespace ndn {
25 namespace security {
26 namespace transform {
27 
28 static const char H2CL[16] = {
29  '0', '1', '2', '3', '4', '5', '6', '7',
30  '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
31 };
32 
33 static const char H2CU[16] = {
34  '0', '1', '2', '3', '4', '5', '6', '7',
35  '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
36 };
37 
38 HexEncode::HexEncode(bool useUpperCase)
39  : m_useUpperCase(useUpperCase)
40 {
41 }
42 
43 size_t
44 HexEncode::convert(const uint8_t* data, size_t dataLen)
45 {
46  setOutputBuffer(toHex(data, dataLen));
47  return dataLen;
48 }
49 
50 unique_ptr<Transform::OBuffer>
51 HexEncode::toHex(const uint8_t* data, size_t dataLen)
52 {
53  const char* encodePad = (m_useUpperCase) ? H2CU : H2CL;
54 
55  auto encoded = make_unique<OBuffer>(dataLen * 2);
56  uint8_t* buf = &encoded->front();
57  for (size_t i = 0; i < dataLen; i++) {
58  buf[0] = encodePad[((data[i] >> 4) & 0x0F)];
59  buf++;
60  buf[0] = encodePad[(data[i] & 0x0F)];
61  buf++;
62  }
63  return encoded;
64 }
65 
66 
67 
68 unique_ptr<Transform>
69 hexEncode(bool useUpperCase)
70 {
71  return make_unique<HexEncode>(useUpperCase);
72 }
73 
74 } // namespace transform
75 } // namespace security
76 } // namespace ndn
Copyright (c) 2011-2015 Regents of the University of California.
unique_ptr< Transform > hexEncode(bool useUpperCase)
Definition: hex-encode.cpp:69
static const char H2CU[16]
Definition: hex-encode.cpp:33
Catch-all error for security policy errors that don&#39;t fit in other categories.
Definition: base.hpp:79
void setOutputBuffer(unique_ptr< OBuffer > buffer)
Set output buffer to buffer.
static const char H2CL[16]
Definition: hex-encode.cpp:28
HexEncode(bool useUpperCase=false)
Create a hex encoding module.
Definition: hex-encode.cpp:38