An Overlay-based
Virtual Network Substrate
SpoVNet

source: source/ariba/Name.cpp @ 10700

Last change on this file since 10700 was 9684, checked in by mies, 9 years ago

almost forgot to commit: doxygen modules :)

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1// [License]
2// The Ariba-Underlay Copyright
3//
4// Copyright (c) 2008-2009, Institute of Telematics, UniversitÀt Karlsruhe (TH)
5//
6// Institute of Telematics
7// UniversitÀt Karlsruhe (TH)
8// Zirkel 2, 76128 Karlsruhe
9// Germany
10//
11// Redistribution and use in source and binary forms, with or without
12// modification, are permitted provided that the following conditions are
13// met:
14//
15// 1. Redistributions of source code must retain the above copyright
16// notice, this list of conditions and the following disclaimer.
17// 2. Redistributions in binary form must reproduce the above copyright
18// notice, this list of conditions and the following disclaimer in the
19// documentation and/or other materials provided with the distribution.
20//
21// THIS SOFTWARE IS PROVIDED BY THE INSTITUTE OF TELEMATICS ``AS IS'' AND
22// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OF TELEMATICS OR
25// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
26// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
27// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
28// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
29// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
30// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
31// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32//
33// The views and conclusions contained in the software and documentation
34// are those of the authors and should not be interpreted as representing
35// official policies, either expressed or implied, of the Institute of
36// Telematics.
37// [License]
38
39#include "Name.h"
40
41#include "ariba/utility/types/Identifier.h"
42
43using ariba::utility::Identifier;
44
45std::ostream& operator<<( std::ostream& s, const ariba::Name& n ) {
46        return s << n.toString();
47}
48
49namespace ariba {
50
51const Name Name::UNSPECIFIED;
52
53void Name::init(const char* name, int len, bool copy, bool hreadable) {
54
55        // delete the old buffer
56        if( _bytes != NULL ) {
57                delete[] _bytes;
58                _bytes = NULL;
59                _length = 0;
60        }
61
62        // alloc new stuff
63        if (len == -1)
64                len = strlen(name);
65
66        if (copy) {
67
68                if ( (name!=NULL) && (len>0) ){
69                        _bytes = new uint8_t[len];
70                        memcpy( _bytes, name, len );
71                } else {
72                        len = 0;
73                        _bytes = NULL;
74                }
75
76        } else {
77                _bytes = (uint8_t*)name;
78        }
79
80        _copy = copy;
81        _length = len;
82        _hreadable = hreadable;
83}
84
85Name::Name()
86        : _bytes( NULL ), _length( 0 ), _copy( false ), _hreadable( false) {
87}
88
89Name::Name(const char* name, int len, bool copy)
90        : _bytes( NULL ), _length( 0 ), _copy( false ), _hreadable( false) {
91        init(name, len, copy, len == -1);
92}
93
94Name::Name(string name)
95        : _bytes( NULL ), _length( 0 ), _copy( false ), _hreadable( false) {
96        init(name.c_str(), name.length(), true, true);
97}
98
99Name::Name(const Name& name)
100        : _bytes( NULL ), _length( 0 ), _copy( false ), _hreadable( false) {
101        init((const char*)name.bytes(), name.length(), true, name._hreadable);
102}
103
104Name::~Name() {
105        if (_copy && (_bytes!=NULL)){
106                delete[] _bytes;
107                _bytes = NULL;
108                _length = 0;
109        }
110}
111
112Name& Name::operator=( const Name& name ) {
113        init((const char*)name.bytes(), name.length(), true, name._hreadable);
114        return *this;
115}
116
117const uint8_t* Name::bytes() const {
118        return _bytes;
119}
120
121const size_t Name::length() const {
122        return _length;
123}
124
125bool Name::operator==(const Name& name) const {
126
127        // unspecified Name objects
128        if (_bytes == NULL && name._bytes == NULL &&
129                length() == name.length()) return true;
130
131        // specified name objects
132        if (_bytes == NULL || name._bytes == NULL) return false;
133        if (name.length() != length()) return false;
134        return (memcmp(name.bytes(), bytes(), length()) == 0);
135}
136
137bool Name::operator!=(const Name& name) const {
138        return !(*this == name);
139}
140
141bool Name::isUnspecified() const {
142        return *this == UNSPECIFIED;
143}
144
145Name Name::random() {
146        char name[17];
147        srand( time(NULL) );
148
149        for (int i=0;i<16; i++)
150                name[i] = ("abcdefghijklmnopqrstuvwxyz")[((unsigned)rand())%26];
151        name[16] = 0;
152
153        // force use of the std::string ctor with this
154        return Name( string(name) );
155}
156
157string Name::toString() const {
158        if (_hreadable) {
159                char str[256];
160                for (size_t i=0; i<length(); i++) str[i] = bytes()[i];
161                str[length()] = 0;
162                return string(str);
163        } else {
164                return string("<not readable>");
165        }
166}
167
168NodeID Name::toNodeId() const {
169        if( bytes()==NULL || length()==0 ) return NodeID::UNSPECIFIED;
170        return NodeID( Identifier::sha1(bytes(),length()) );
171}
172
173SpoVNetID Name::toSpoVNetId() const {
174        if( bytes()==NULL || length()==0 ) return SpoVNetID::UNSPECIFIED;
175        return SpoVNetID( Identifier::sha1(bytes(),length()) );
176}
177
178} // namespace ariba
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