mirror of
https://github.com/upx/upx
synced 2025-09-28 19:06:07 +08:00
15484aa296
Changes include: - extract headers.h from conf.h - use "byte" in some more places - unify "const" coding style - pefile.cpp: make sort order deterministic - simplify some other pefile.cpp code - CI updates
110 lines
3.4 KiB
C++
110 lines
3.4 KiB
C++
/* p_exe.h -- dos/exe executable format
|
|
|
|
This file is part of the UPX executable compressor.
|
|
|
|
Copyright (C) 1996-2023 Markus Franz Xaver Johannes Oberhumer
|
|
Copyright (C) 1996-2023 Laszlo Molnar
|
|
All Rights Reserved.
|
|
|
|
UPX and the UCL library are free software; you can redistribute them
|
|
and/or modify them under the terms of the GNU General Public License as
|
|
published by the Free Software Foundation; either version 2 of
|
|
the License, or (at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; see the file COPYING.
|
|
If not, write to the Free Software Foundation, Inc.,
|
|
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
|
|
Markus F.X.J. Oberhumer Laszlo Molnar
|
|
<markus@oberhumer.com> <ezerotven+github@gmail.com>
|
|
*/
|
|
|
|
#pragma once
|
|
#ifndef UPX_P_EXE_H__
|
|
#define UPX_P_EXE_H__ 1
|
|
|
|
/*************************************************************************
|
|
// dos/exe
|
|
**************************************************************************/
|
|
|
|
class PackExe final : public Packer {
|
|
typedef Packer super;
|
|
|
|
public:
|
|
PackExe(InputFile *f);
|
|
virtual int getVersion() const override { return 13; }
|
|
virtual int getFormat() const override { return UPX_F_DOS_EXE; }
|
|
virtual const char *getName() const override { return "dos/exe"; }
|
|
virtual const char *getFullName(const Options *) const override { return "i086-dos16.exe"; }
|
|
virtual const int *getCompressionMethods(int method, int level) const override;
|
|
virtual const int *getFilters() const override;
|
|
|
|
virtual void pack(OutputFile *fo) override;
|
|
virtual void unpack(OutputFile *fo) override;
|
|
|
|
virtual bool canPack() override;
|
|
virtual int canUnpack() override;
|
|
|
|
// unpacker capabilities
|
|
virtual bool canUnpackVersion(int version) const override {
|
|
// NOTE: could adapt p_exe.cpp to support (version >= 8)
|
|
return (version >= 10);
|
|
}
|
|
virtual bool canUnpackFormat(int format) const override {
|
|
return (format == UPX_F_DOS_EXE || format == UPX_F_DOS_EXEH);
|
|
}
|
|
|
|
protected:
|
|
struct exe_header_t;
|
|
|
|
virtual int readFileHeader(void);
|
|
|
|
virtual int fillExeHeader(struct exe_header_t *) const;
|
|
virtual void buildLoader(const Filter *ft) override;
|
|
virtual Linker *newLinker() const override;
|
|
void addLoaderEpilogue(int flag);
|
|
|
|
struct alignas(1) exe_header_t {
|
|
LE16 ident;
|
|
LE16 m512;
|
|
LE16 p512;
|
|
LE16 relocs;
|
|
LE16 headsize16;
|
|
LE16 min;
|
|
LE16 max;
|
|
LE16 ss;
|
|
LE16 sp;
|
|
byte _[2]; // checksum
|
|
LE16 ip;
|
|
LE16 cs;
|
|
LE16 relocoffs;
|
|
byte __[2]; // overlnum
|
|
LE32 firstreloc;
|
|
};
|
|
|
|
exe_header_t ih, oh;
|
|
|
|
unsigned ih_exesize = 0;
|
|
unsigned ih_imagesize = 0;
|
|
unsigned ih_overlay = 0;
|
|
unsigned relocsize = 0;
|
|
|
|
bool has_9a = false;
|
|
bool device_driver = false;
|
|
|
|
enum { NORELOC = 1, USEJUMP = 2, SS = 4, SP = 8, MINMEM = 16, MAXMEM = 32 };
|
|
|
|
unsigned stack_for_lzma = 0; // stack size required for lzma
|
|
bool use_clear_dirty_stack = false;
|
|
};
|
|
|
|
#endif /* already included */
|
|
|
|
/* vim:set ts=4 sw=4 et: */
|