/*
This file is part of "Filter Foundry", a filter plugin for Adobe Photoshop
Copyright (C) 2003-2009 Toby Thain, toby@telegraphics.com.au
Copyright (C) 2018-2021 Daniel Marschall, ViaThinkSoft
This program is free software; you can redistribute it and/or modify
it 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; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _CRT_SECURE_NO_WARNINGS
#define _CRT_SECURE_NO_WARNINGS
#endif
#include <iostream>
#include <windows.h>
bool update_pe_timestamp(LPCTSTR filename, time_t timestamp) {
size_t peoffset;
FILE* fptr;
fptr = _wfopen(filename, L"rb+");
if (fptr == NULL) return false;
fseek(fptr, 0x3C, SEEK_SET);
fread(&peoffset, sizeof(peoffset), 1, fptr);
fseek(fptr, (long)peoffset + 8, SEEK_SET);
fwrite(×tamp, sizeof(time_t), 1, fptr);
fclose(fptr);
return true;
}
//DOS .EXE header
struct image_dos_header
{
uint16_t e_magic; // Magic number
uint16_t e_cblp; // Bytes on last page of file
uint16_t e_cp; // Pages in file
uint16_t e_crlc; // Relocations
uint16_t e_cparhdr; // Size of header in paragraphs
uint16_t e_minalloc; // Minimum extra paragraphs needed
uint16_t e_maxalloc; // Maximum extra paragraphs needed
uint16_t e_ss; // Initial (relative) SS value
uint16_t e_sp; // Initial SP value
uint16_t e_csum; // Checksum
uint16_t e_ip; // Initial IP value
uint16_t e_cs; // Initial (relative) CS value
uint16_t e_lfarlc; // File address of relocation table
uint16_t e_ovno; // Overlay number
uint16_t e_res[4]; // Reserved words
uint16_t e_oemid; // OEM identifier (for e_oeminfo)
uint16_t e_oeminfo; // OEM information; e_oemid specific
uint16_t e_res2[10]; // Reserved words
int32_t e_lfanew; // File address of new exe header
};
struct image_file_header
{
uint16_t Machine;
uint16_t NumberOfSections;
uint32_t TimeDateStamp;
uint32_t PointerToSymbolTable;
uint32_t NumberOfSymbols;
uint16_t SizeOfOptionalHeader;
uint16_t Characteristics;
};
uint32_t calculate_checksum(LPCTSTR filename) {
//Calculate checksum of image
// Taken from "PE Bliss" Cross-Platform Portable Executable C++ Library
// https://github.com/mrexodia/portable-executable-library/blob/master/pe_lib/pe_checksum.cpp
// Converted from C++ to C by Daniel Marschall
FILE* fptr;
unsigned long long checksum = 0;
struct image_dos_header header;
size_t filesize;
unsigned long long top;
unsigned long pe_checksum_pos;
static const unsigned long checksum_pos_in_optional_headers = 64;
size_t i;
fptr = _wfopen(filename, L"rb");
if (fptr == NULL) return 0x00000000;
//Read DOS header
fseek(fptr, 0, SEEK_SET);
fread(&header, sizeof(struct image_dos_header), 1, fptr);
//Calculate PE checksum
fseek(fptr, 0, SEEK_SET);
top = 0xFFFFFFFF;
top++;
//"CheckSum" field position in optional PE headers - it's always 64 for PE and PE+
//Calculate real PE headers "CheckSum" field position
//Sum is safe here
pe_checksum_pos = header.e_lfanew + sizeof(struct image_file_header) + sizeof(uint32_t) + checksum_pos_in_optional_headers;
//Calculate checksum for each byte of file
fseek(fptr, 0L, SEEK_END);
filesize = ftell(fptr);
fseek(fptr, 0L, SEEK_SET);
for (i = 0; i < filesize; i += 4)
{
unsigned long dw = 0;
//Read DWORD from file
fread(&dw, sizeof(dw), 1, fptr);
//Skip "CheckSum" DWORD
if (i == pe_checksum_pos)
continue;
//Calculate checksum
checksum = (checksum & 0xffffffff) + dw + (checksum >> 32);
if (checksum > top)
checksum = (checksum & 0xffffffff) + (checksum >> 32);
}
//Finish checksum
checksum = (checksum & 0xffff) + (checksum >> 16);
checksum = (checksum)+(checksum >> 16);
checksum = checksum & 0xffff;
checksum += (unsigned long)(filesize);
fclose(fptr);
//Return checksum
return (uint32_t)checksum;
}
bool repair_pe_checksum(LPCTSTR filename) {
size_t peoffset;
FILE* fptr;
uint32_t checksum = calculate_checksum(filename);
//if (checksum == 0x00000000) return false;
fptr = _wfopen(filename, L"rb+");
if (fptr == NULL) return false;
fseek(fptr, 0x3C, SEEK_SET);
fread(&peoffset, sizeof(peoffset), 1, fptr);
fseek(fptr, (long)peoffset + 88, SEEK_SET);
fwrite(&checksum, sizeof(uint32_t), 1, fptr);
fclose(fptr);
return true;
}
bool removeFromFile(LPCTSTR pluginfile, LPCTSTR lpType, LPCTSTR lpName, WORD wLanguage) {
bool bSuccessful = false;
HANDLE hRes = BeginUpdateResource(pluginfile, false);
if (hRes != NULL) {
if (UpdateResource(hRes, lpType, lpName, wLanguage, NULL, 0)) {
if (EndUpdateResource(hRes, false)) {
bSuccessful = true;
}
}
else {
EndUpdateResource(hRes, true);
}
}
return bSuccessful;
}
bool addToFile(LPCTSTR pluginfile, LPCTSTR otherfile, LPCTSTR lpType, LPCTSTR lpName, WORD wLanguage) {
HANDLE hFile;
DWORD dwFileSize, dwBytesRead;
LPBYTE lpBuffer;
bool bSuccessful = false;
hFile = CreateFile(otherfile, GENERIC_READ,
0,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL);
if (INVALID_HANDLE_VALUE != hFile)
{
dwFileSize = GetFileSize(hFile, NULL);
//lpBuffer = new BYTE[dwFileSize];
lpBuffer = (LPBYTE)malloc(dwFileSize);
if (ReadFile(hFile, lpBuffer, dwFileSize, &dwBytesRead, NULL) != FALSE)
{
HANDLE hRes = BeginUpdateResource(pluginfile, false);
if (hRes != NULL) {
if (UpdateResource(hRes, lpType, lpName, wLanguage, lpBuffer, dwFileSize)) {
if (EndUpdateResource(hRes, false)) {
bSuccessful = true;
}
}
else {
EndUpdateResource(hRes, true);
}
}
}
//delete[] lpBuffer;
free(lpBuffer);
CloseHandle(hFile);
}
return bSuccessful;
}
int main()
{
LPCTSTR lpType = L"TPLT";
LPCTSTR lpName32 = (LPCTSTR)1032;
LPCTSTR lpName64 = (LPCTSTR)1064;
WORD wLanguage = 1033; // en-US
LPCTSTR file32in = L"in\\FilterFoundry.8bf";
LPCTSTR file64in = L"in\\FilterFoundry64.8bf";
LPCTSTR file32out = L"out\\FilterFoundry.8bf";
LPCTSTR file64out = L"out\\FilterFoundry64.8bf";
LPCTSTR file32tmp = L"FilterFoundry.tmp";
LPCTSTR file64tmp = L"FilterFoundry64.tmp";
// 1. Copy "IN" to "TMP"
if (!CopyFile(file32in, file32tmp, false)) {
DeleteFile(file32out);
DeleteFile(file64out);
printf("Error: Copyfile 32in > 32tmp\n");
return 1;
}
if (!CopyFile(file64in, file64tmp, false)) {
DeleteFile(file32out);
DeleteFile(file64out);
printf("Error: Copyfile 64in > 64tmp\n");
return 1;
}
// 2. Remove any 32/64 residue in "TMP"
removeFromFile(file32tmp, lpType, lpName32, wLanguage);
removeFromFile(file32tmp, lpType, lpName64, wLanguage);
removeFromFile(file64tmp, lpType, lpName32, wLanguage);
removeFromFile(file64tmp, lpType, lpName64, wLanguage);
// 3. Update timestamp
if (!update_pe_timestamp(file32tmp, time(0))) {
DeleteFile(file32out);
DeleteFile(file64out);
printf("Error: Update TMP timestamp 32\n");
return 1;
}
if (!update_pe_timestamp(file64tmp, time(0))) {
DeleteFile(file32out);
DeleteFile(file64out);
printf("Error: Update TMP timestamp 64\n");
return 1;
}
// 4. Repair checksums
if (!repair_pe_checksum(file32tmp)) {
DeleteFile(file32out);
DeleteFile(file64out);
printf("Error: Repair TMP checksum 32\n");
return 1;
}
if (!repair_pe_checksum(file64tmp)) {
DeleteFile(file32out);
DeleteFile(file64out);
printf("Error: Repair TMP checksum 64\n");
return 1;
}
// 5. Copy "TMP" to "OUT" (will be edited later)
if (!CopyFile(file32tmp, file32out, false)) {
DeleteFile(file32out);
DeleteFile(file64out);
printf("Error: Copyfile 32tmp > 32out\n");
return 1;
}
if (!CopyFile(file64tmp, file64out, false)) {
DeleteFile(file32out);
DeleteFile(file64out);
printf("Error: Copyfile 64tmp > 64out\n");
return 1;
}
// 6. Add 32/64 "TMP" to 64/32 "OUT"
if (!addToFile(file32out, file32tmp, lpType, lpName32, wLanguage)) {
DeleteFile(file32out);
DeleteFile(file64out);
printf("Error: Add 32 to 32\n");
return 1;
}
if (!addToFile(file32out, file64tmp, lpType, lpName64, wLanguage)) {
DeleteFile(file32out);
DeleteFile(file64out);
printf("Error: Add 64 to 32\n");
return 1;
}
if (!addToFile(file64out, file32tmp, lpType, lpName32, wLanguage)) {
DeleteFile(file32out);
DeleteFile(file64out);
printf("Error: Add 32 to 64\n");
return 1;
}
if (!addToFile(file64out, file64tmp, lpType, lpName64, wLanguage)) {
DeleteFile(file32out);
DeleteFile(file64out);
printf("Error: Add 64 to 64\n");
return 1;
}
// 7. Delete "TMP"
DeleteFile(file32tmp);
DeleteFile(file64tmp);
// 8. Update timestamp
if (!update_pe_timestamp(file32out, time(0))) {
DeleteFile(file32out);
DeleteFile(file64out);
printf("Error: Update OUT timestamp 32\n");
return 1;
}
if (!update_pe_timestamp(file64out, time(0))) {
DeleteFile(file32out);
DeleteFile(file64out);
printf("Error: Update OUT timestamp 64\n");
return 1;
}
// 9. Repair checksums
if (!repair_pe_checksum(file32out)) {
DeleteFile(file32out);
DeleteFile(file64out);
printf("Error: Repair OUT checksum 32\n");
return 1;
}
if (!repair_pe_checksum(file64out)) {
DeleteFile(file32out);
DeleteFile(file64out);
printf("Error: Repair OUT checksum 64\n");
return 1;
}
// 10. All done!
printf("All OK!\n");
return 0;
}