125 lines
4.2 KiB
C++
125 lines
4.2 KiB
C++
/*
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Copyright (C) 2001-present by Serge Lamikhov-Center
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#ifndef ELFIO_MODINFO_HPP
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#define ELFIO_MODINFO_HPP
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#include <string>
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#include <vector>
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namespace ELFIO {
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//------------------------------------------------------------------------------
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template <class S> class modinfo_section_accessor_template
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{
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public:
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//------------------------------------------------------------------------------
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explicit modinfo_section_accessor_template( S* section )
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: modinfo_section( section )
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{
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process_section();
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}
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//------------------------------------------------------------------------------
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Elf_Word get_attribute_num() const { return (Elf_Word)content.size(); }
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//------------------------------------------------------------------------------
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bool
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get_attribute( Elf_Word no, std::string& field, std::string& value ) const
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{
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if ( no < content.size() ) {
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field = content[no].first;
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value = content[no].second;
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return true;
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}
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return false;
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}
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//------------------------------------------------------------------------------
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bool get_attribute( const std::string& field_name,
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std::string& value ) const
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{
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for ( auto& i : content ) {
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if ( field_name == i.first ) {
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value = i.second;
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return true;
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}
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}
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return false;
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}
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//------------------------------------------------------------------------------
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Elf_Word add_attribute( const std::string& field, const std::string& value )
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{
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Elf_Word current_position = 0;
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if ( modinfo_section ) {
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// Strings are addeded to the end of the current section data
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current_position = (Elf_Word)modinfo_section->get_size();
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std::string attribute = field + "=" + value;
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modinfo_section->append_data( attribute + '\0' );
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content.emplace_back( field, value );
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}
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return current_position;
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}
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//------------------------------------------------------------------------------
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private:
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void process_section()
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{
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const char* pdata = modinfo_section->get_data();
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if ( pdata ) {
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ELFIO::Elf_Xword i = 0;
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while ( i < modinfo_section->get_size() ) {
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while ( i < modinfo_section->get_size() && !pdata[i] )
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i++;
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if ( i < modinfo_section->get_size() ) {
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std::string info = pdata + i;
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size_t loc = info.find( '=' );
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content.emplace_back( info.substr( 0, loc ),
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info.substr( loc + 1 ) );
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i += info.length();
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}
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}
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}
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}
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//------------------------------------------------------------------------------
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private:
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S* modinfo_section;
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std::vector<std::pair<std::string, std::string>> content;
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};
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using modinfo_section_accessor = modinfo_section_accessor_template<section>;
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using const_modinfo_section_accessor =
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modinfo_section_accessor_template<const section>;
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} // namespace ELFIO
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#endif // ELFIO_MODINFO_HPP
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