osx_fat_reader.h

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/*******************************************************************\
 
Module: Read OS X Fat Binaries
 
Author:
 
\*******************************************************************/

 
#ifndef CPROVER_GOTO_PROGRAMS_OSX_FAT_READER_H
#define CPROVER_GOTO_PROGRAMS_OSX_FAT_READER_H
 
#include <util/message.h>
 
#include <cstdint>
#include <fstream>
#include <map>
#include <string>
 
// we follow
// https://developer.apple.com/library/mac/#documentation/DeveloperTools/Conceptual/MachORuntime/Reference/reference.html
 
class osx_fat_readert
{
public:
  osx_fat_readert(std::ifstream &, message_handlert &);
 
  bool has_gb() const { return has_gb_arch; }
 
  bool extract_gb(
    const std::string &source,
    const std::string &dest) const;
 
private:
  messaget log;
  bool has_gb_arch;
};
 
bool is_osx_fat_header(char hdr[8]);
 
class osx_mach_o_readert
{
public:
  osx_mach_o_readert(std::istream &, message_handlert &);
 
  struct sectiont
  {
    sectiont(const std::string &_name, std::size_t _offset, std::size_t _size)
      : name(_name), offset(_offset), size(_size)
    {
    }
 
    std::string name;
    std::size_t offset;
    std::size_t size;
  };
 
  using sectionst = std::map<std::string, sectiont>;
  sectionst sections;
 
  bool has_section(const std::string &name) const
  {
    return sections.find(name) != sections.end();
  }
 
private:
  messaget log;
  std::istream &in;
 
  void process_commands(uint32_t ncmds, std::size_t offset, bool need_swap);
 
  void process_sections_32(uint32_t nsects, bool need_swap);
  void process_sections_64(uint32_t nsects, bool need_swap);
};
 
bool is_osx_mach_object(char hdr[4]);
 
#endif // CPROVER_GOTO_PROGRAMS_OSX_FAT_READER_H