1 | // [License]
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2 | // The Ariba-Underlay Copyright
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3 | //
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4 | // Copyright (c) 2008-2009, Institute of Telematics, UniversitÀt Karlsruhe (TH)
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5 | //
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6 | // Institute of Telematics
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7 | // UniversitÀt Karlsruhe (TH)
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8 | // Zirkel 2, 76128 Karlsruhe
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9 | // Germany
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10 | //
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11 | // Redistribution and use in source and binary forms, with or without
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12 | // modification, are permitted provided that the following conditions are
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13 | // met:
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14 | //
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15 | // 1. Redistributions of source code must retain the above copyright
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16 | // notice, this list of conditions and the following disclaimer.
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17 | // 2. Redistributions in binary form must reproduce the above copyright
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18 | // notice, this list of conditions and the following disclaimer in the
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19 | // documentation and/or other materials provided with the distribution.
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20 | //
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21 | // THIS SOFTWARE IS PROVIDED BY THE INSTITUTE OF TELEMATICS ``AS IS'' AND
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22 | // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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23 | // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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24 | // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OF TELEMATICS OR
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25 | // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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26 | // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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27 | // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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28 | // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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29 | // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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30 | // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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31 | // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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32 | //
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33 | // The views and conclusions contained in the software and documentation
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34 | // are those of the authors and should not be interpreted as representing
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35 | // official policies, either expressed or implied, of the Institute of
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36 | // Telematics.
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37 | // [License]
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38 |
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39 | #include "Name.h"
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40 |
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41 | std::ostream& operator<<( std::ostream& s, const ariba::Name& n ) {
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42 | return s << n.toString();
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43 | }
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44 |
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45 | namespace ariba {
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46 |
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47 | const Name Name::UNSPECIFIED;
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48 |
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49 | void Name::init(const char* name, int len, bool copy, bool hreadable) {
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50 |
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51 | // delete the old buffer
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52 | if( _bytes != NULL ) {
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53 | delete[] _bytes;
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54 | _bytes = NULL;
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55 | _length = 0;
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56 | }
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57 |
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58 | // alloc new stuff
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59 | if (len == -1)
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60 | len = strlen(name);
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61 |
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62 | if (copy) {
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63 |
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64 | if ( (name!=NULL) && (len>0) ){
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65 | _bytes = new uint8_t[len];
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66 | memcpy( _bytes, name, len );
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67 | } else {
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68 | len = 0;
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69 | _bytes = NULL;
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70 | }
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71 |
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72 | } else {
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73 | _bytes = (uint8_t*)name;
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74 | }
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75 |
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76 | _copy = copy;
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77 | _length = len;
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78 | _hreadable = hreadable;
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79 | }
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80 |
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81 | Name::Name()
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82 | : _bytes( NULL ), _length( 0 ), _copy( false ), _hreadable( false) {
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83 | }
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84 |
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85 | Name::Name(const char* name, int len, bool copy)
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86 | : _bytes( NULL ), _length( 0 ), _copy( false ), _hreadable( false) {
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87 | init(name, len, copy, len == -1);
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88 | }
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89 |
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90 | Name::Name(string name)
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91 | : _bytes( NULL ), _length( 0 ), _copy( false ), _hreadable( false) {
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92 | init(name.c_str(), name.length(), true, true);
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93 | }
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94 |
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95 | Name::Name(const Name& name)
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96 | : _bytes( NULL ), _length( 0 ), _copy( false ), _hreadable( false) {
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97 | init((const char*)name.bytes(), name.length(), true, name._hreadable);
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98 | }
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99 |
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100 | Name::~Name() {
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101 | if (_copy && (_bytes!=NULL)){
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102 | delete[] _bytes;
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103 | _bytes = NULL;
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104 | _length = 0;
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105 | }
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106 | }
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107 |
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108 | Name& Name::operator=( const Name& name ) {
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109 | init((const char*)name.bytes(), name.length(), true, name._hreadable);
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110 | }
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111 |
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112 | const uint8_t* Name::bytes() const {
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113 | return _bytes;
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114 | }
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115 |
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116 | const size_t Name::length() const {
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117 | return _length;
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118 | }
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119 |
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120 | bool Name::operator==(const Name& name) const {
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121 |
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122 | // unspecified Name objects
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123 | if (_bytes == NULL && name._bytes == NULL &&
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124 | length() == name.length()) return true;
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125 |
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126 | // specified name objects
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127 | if (_bytes == NULL || name._bytes == NULL) return false;
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128 | if (name.length() != length()) return false;
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129 | return (memcmp(name.bytes(), bytes(), length()) == 0);
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130 | }
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131 |
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132 | bool Name::operator!=(const Name& name) const {
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133 | return !(*this == name);
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134 | }
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135 |
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136 | bool Name::isUnspecified() const {
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137 | return *this == UNSPECIFIED;
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138 | }
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139 |
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140 | Name Name::random() {
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141 | char name[17];
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142 | srand( time(NULL) );
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143 |
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144 | for (int i=0;i<16; i++)
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145 | name[i] = ("abcdefghijklmnopqrstuvwxyz")[((unsigned)rand())%26];
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146 | name[16] = 0;
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147 |
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148 | // force use of the std::string ctor with this
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149 | return Name( string(name) );
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150 | }
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151 |
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152 | string Name::toString() const {
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153 | if (_hreadable) {
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154 | char str[256];
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155 | for (int i=0; i<length(); i++) str[i] = bytes()[i];
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156 | str[length()] = 0;
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157 | return string(str);
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158 | } else {
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159 | return string("<not readable>");
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160 | }
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161 | }
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162 |
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163 | NodeID Name::toNodeId() const {
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164 | if( bytes()==NULL || length()==0 ) return NodeID::UNSPECIFIED;
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165 | return NodeID( Identifier::sha1(bytes(),length()) );
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166 | }
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167 |
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168 | SpoVNetID Name::toSpoVNetId() const {
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169 | if( bytes()==NULL || length()==0 ) return SpoVNetID::UNSPECIFIED;
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170 | return SpoVNetID( Identifier::sha1(bytes(),length()) );
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171 | }
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172 |
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173 | } // namespace ariba
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