/*
 * Copyright 2009, Ingo Weinhold, ingo_weinhold@gmx.de.
 * Distributed under the terms of the MIT License.
 */
#ifndef ELF_FILE_H
#define ELF_FILE_H

#include <sys/types.h>

#include <SupportDefs.h>

#include <elf32.h>
#include <util/DoublyLinkedList.h>


class ElfSection : public DoublyLinkedListLinkImpl<ElfSection> {
public:
								ElfSection(const char* name, int fd,
									off_t offset, off_t size);
								~ElfSection();

			const char*			Name() const	{ return fName; }
			off_t				Offset() const	{ return fOffset; }
			off_t				Size() const	{ return fSize; }
			const void*			Data() const	{ return fData; }

			status_t			Load();
			void				Unload();

private:
			const char*			fName;
			int					fFD;
			off_t				fOffset;
			off_t				fSize;
			void*				fData;
			int32				fLoadCount;
};


class ElfFile {
public:
								ElfFile();
								~ElfFile();

			status_t			Init(const char* fileName);

			ElfSection*			GetSection(const char* name);
			void				PutSection(ElfSection* section);

private:
			typedef DoublyLinkedList<ElfSection> SectionList;

private:
			bool				_CheckRange(off_t offset, off_t size) const;
			bool				_CheckElfHeader() const;

private:
			off_t				fFileSize;
			int					fFD;
			Elf32_Ehdr*			fElfHeader;
			SectionList			fSections;
};


#endif	// ELF_FILE_H