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135 lines
4.4 KiB
135 lines
4.4 KiB
#pragma once
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#include <cstdint>
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#include <memory>
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#include <string>
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#include <vector>
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#include <llosymbol/llosymbol_base.hpp>
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#include <lloutils.hpp>
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namespace llo
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{
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/// <summary>
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/// lloiff class which contains all of the information for representing a file format in a IL format...
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/// </summary>
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class lloiff_t
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{
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public:
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/// <summary>
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/// iff section struct containing IL information about a section...
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/// </summary>
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struct iff_section_t
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{
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/// <summary>
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/// section name, hashed so that there can be multiple...
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/// </summary>
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llo::utils::hash_t< std::string > section_name;
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/// <summary>
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/// section protections...
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/// </summary>
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struct prot_t
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{
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/// <summary>
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/// section protection types...
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/// </summary>
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enum prot_e : std::uint16_t
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{
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none = 0b0000,
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executable = 0b0001,
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writeable = 0b0010
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};
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/// <summary>
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/// IL section protections (writeable/executable)...
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/// </summary>
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prot_e prots;
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/// <summary>
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/// opaque value containing the native characteristics...
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/// </summary>
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std::uint64_t native;
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/// <summary>
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/// returns true if section is executable...
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/// </summary>
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/// <returns></returns>
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bool is_executable()
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{
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return ( prots & prot_e::executable );
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}
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/// <summary>
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/// returns true if section is writable...
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/// </summary>
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/// <returns></returns>
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bool is_writable()
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{
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return ( prots & prot_e::writeable );
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}
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};
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/// <summary>
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/// section protections and characteristics
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/// </summary>
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prot_t protections;
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/// <summary>
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/// vector of symbols for this section...
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/// </summary>
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std::vector< std::shared_ptr< llo::symbol::symbol_base_t > > symbols;
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/// <summary>
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/// vector of raw bytes containing the original bytes of this section...
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/// </summary>
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std::vector< std::uint8_t > raw;
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};
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/// <summary>
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/// explicit constructor, must pass a name and the original file as a vector of bytes...
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/// </summary>
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/// <param name="name">name for this iff object...</param>
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/// <param name="raw">vector of raw bytes containing the original file...</param>
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explicit lloiff_t( const std::string &name, const std::vector< std::uint8_t > &raw ) : name( name ), raw( raw )
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{
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}
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/// <summary>
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/// makes a shared pointer containing a llo::lloiff_t...
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/// </summary>
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/// <param name="name">name of the file...</param>
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/// <param name="raw">vector of bytes containing the raw file...</param>
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/// <returns>returns a shared pointer of the new object...</returns>
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static std::shared_ptr< llo::lloiff_t > make( const std::string &name, const std::vector< std::uint8_t > &raw )
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{
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return std::make_shared< llo::lloiff_t >( name, raw );
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}
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/// <summary>
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/// entry point, where code execution begins....
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/// this is lifted from the underlying file format...
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/// </summary>
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std::shared_ptr< disposition_t > entry;
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/// <summary>
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/// name of the iff file, hashed so there can be unique objects...
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/// </summary>
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llo::utils::hash_t< std::string > name;
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/// <summary>
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/// vector of iff sections...
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/// </summary>
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std::vector< iff_section_t > sections;
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/// <summary>
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/// vector of bytes containing the entire original file...
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/// </summary>
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std::vector< std::uint8_t > raw;
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/// <summary>
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/// some file formats contain multiple other files inside of them such as LIB...
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/// which is just an archive of OBJ's...
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/// </summary>
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std::vector< std::shared_ptr< llo::lloiff_t > > children;
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};
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} // namespace llo
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