1 | /* $Id: winimagepeldr.cpp,v 1.8 1999-10-23 12:34:48 sandervl Exp $ */
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2 |
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3 | /*
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4 | * Win32 PE loader Image base class
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5 | *
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6 | * Copyright 1998-1999 Sander van Leeuwen (sandervl@xs4all.nl)
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7 | * Copyright 1998 Knut St. Osmundsen
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8 | *
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9 | * Project Odin Software License can be found in LICENSE.TXT
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10 | *
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11 | *
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12 | * NOTE: RSRC_LOAD is a special flag to only load the resource directory
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13 | * of a PE image. Processing imports, sections etc is not done.
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14 | * Nor is it put into the linked list of dlls (if it's a dll).
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15 | * This is useful for GetVersionSize/Resource in case it wants to
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16 | * get version info of an image that is not loaded.
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17 | * So an instance of this type can't be used for anything but resource lookup!
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18 | *
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19 | */
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20 |
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21 | #define INCL_DOSFILEMGR /* File Manager values */
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22 | #define INCL_DOSMODULEMGR
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23 | #define INCL_DOSERRORS /* DOS Error values */
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24 | #define INCL_DOSPROCESS /* DOS Process values */
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25 | #define INCL_DOSMISC /* DOS Miscellanous values */
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26 | #define INCL_WIN
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27 | #define INCL_BASE
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28 | #include <os2wrap.h> //Odin32 OS/2 api wrappers
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29 |
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30 | #include <stdio.h>
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31 | #include <string.h>
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32 | #include <stdlib.h>
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33 |
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34 | #include <assert.h>
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35 | #include <misc.h>
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36 | #include <win32type.h>
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37 | #include <winimagebase.h>
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38 | #include <winimagepeldr.h>
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39 | #include <windllpeldr.h>
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40 | #include <pefile.h>
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41 | #include <unicode.h>
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42 | #include <winres.h>
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43 | #include "oslibmisc.h"
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44 | #include "initterm.h"
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45 | #include <win\virtual.h>
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46 |
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47 | char szErrorTitle[] = "Odin";
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48 | char szMemErrorMsg[] = "Memory allocation failure";
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49 | char szFileErrorMsg[] = "File IO error";
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50 | char szPEErrorMsg[] = "Not a valid win32 exe. (perhaps 16 bits windows)";
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51 | char szCPUErrorMsg[] = "Executable doesn't run on x86 machines";
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52 | char szExeErrorMsg[] = "File isn't an executable";
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53 | char szInteralErrorMsg[]= "Internal Error";
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54 |
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55 | #ifndef max
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56 | #define max(a, b) ((a>b) ? a : b)
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57 | #endif
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58 |
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59 | BOOL foutInit = FALSE;
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60 | ofstream fout;
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61 |
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62 | ULONG MissingApi();
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63 | char *hex(ULONG num);
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64 |
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65 | extern ULONG flAllocMem; /*Tue 03.03.1998: knut */
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66 |
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67 | //******************************************************************************
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68 | //******************************************************************************
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69 | Win32PeLdrImage::Win32PeLdrImage(char *szFileName, int loadtype) :
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70 | Win32ImageBase(-1),
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71 | nrsections(0), imageSize(0),
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72 | imageVirtBase(-1), realBaseAddress(0), imageVirtEnd(0),
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73 | nrNameExports(0), nrOrdExports(0), nameexports(NULL), ordexports(NULL),
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74 | pResSection(NULL), fImgMapping(0)
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75 | {
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76 | loadType = loadtype;
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77 |
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78 | strcpy(this->szFileName, szFileName);
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79 |
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80 | strcpy(szModule, OSLibStripPath(szFileName));
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81 | strupr(szModule);
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82 | char *dot = strstr(szModule, ".");
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83 | while(dot) {
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84 | char *newdot = strstr(dot+1, ".");
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85 | if(newdot == NULL) break;
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86 | dot = newdot;
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87 | }
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88 | if(dot)
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89 | *dot = 0;
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90 |
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91 | if(foutInit == FALSE) {
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92 | char logname[32];
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93 | sprintf(logname, "pe_%d.log", loadNr);
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94 | fout.open(logname, ios::out | ios::trunc);
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95 | if(fout.good() == FALSE) {
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96 | sprintf(logname, "%spe_%d.log", kernel32Path, loadNr);
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97 | fout.open(logname, ios::out | ios::trunc);
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98 | }
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99 | dprintf(("PE LOGFILE for %s: %s", szModule, logname));
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100 | foutInit = TRUE;
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101 | }
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102 | }
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103 | //******************************************************************************
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104 | //******************************************************************************
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105 | Win32PeLdrImage::~Win32PeLdrImage()
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106 | {
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107 | if(realBaseAddress)
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108 | DosFreeMem((PVOID)realBaseAddress);
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109 |
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110 | if(nameexports)
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111 | free(nameexports);
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112 |
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113 | if(ordexports)
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114 | free(ordexports);
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115 |
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116 | //SvL: Only happens for images that aren't really loaded (RSRC_LOAD)
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117 | if(fImgMapping) CloseHandle(fImgMapping);
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118 | fImgMapping = 0;
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119 | }
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120 | //******************************************************************************
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121 | //******************************************************************************
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122 | BOOL Win32PeLdrImage::init(ULONG reservedMem)
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123 | {
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124 | char szErrorMsg[64];
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125 | LPVOID win32file = NULL;
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126 | ULONG filesize, ulRead;
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127 | PIMAGE_SECTION_HEADER psh;
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128 | IMAGE_TLS_DIRECTORY *tlsDir = NULL;
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129 | int nSections, i;
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130 | char szFullPath[CCHMAXPATH] = "";
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131 |
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132 | fImgMapping = VIRTUAL_MapFileA(szFileName, &win32file);
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133 |
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134 | if (fImgMapping == -1) {
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135 | sprintf(szErrorMsg, "Unable to open %32s\n", szFileName);
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136 | WinMessageBox(HWND_DESKTOP, HWND_DESKTOP, szErrorMsg, szErrorTitle, 0, MB_OK | MB_ERROR | MB_MOVEABLE);
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137 | goto failure;
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138 | }
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139 |
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140 | if(DosQueryPathInfo(szFileName, FIL_QUERYFULLNAME, szFullPath, sizeof(szFullPath)) == 0) {
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141 | setFullPath(szFullPath);
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142 | }
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143 |
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144 | if(GetPEFileHeader (win32file, &fh) == FALSE) {
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145 | fout << "Not a valid PE file (probably a 16 bits windows exe/dll)!" << endl;
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146 | WinMessageBox(HWND_DESKTOP, HWND_DESKTOP, szPEErrorMsg, szErrorTitle, 0, MB_OK | MB_ERROR | MB_MOVEABLE);
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147 | goto failure;
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148 | }
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149 |
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150 | if(!(fh.Characteristics & IMAGE_FILE_EXECUTABLE_IMAGE)) {//not valid
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151 | fout << "Not a valid PE file!" << endl;
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152 | WinMessageBox(HWND_DESKTOP, HWND_DESKTOP, szPEErrorMsg, szErrorTitle, 0, MB_OK | MB_ERROR | MB_MOVEABLE);
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153 | goto failure;
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154 | }
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155 | if(fh.Machine != IMAGE_FILE_MACHINE_I386) {
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156 | fout << "You need a REAL CPU to run this code" << endl;
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157 | WinMessageBox(HWND_DESKTOP, HWND_DESKTOP, szCPUErrorMsg, szErrorTitle, 0, MB_OK | MB_ERROR | MB_MOVEABLE);
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158 | goto failure;
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159 | }
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160 | //IMAGE_FILE_SYSTEM == only drivers (device/file system/video etc)?
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161 | if(fh.Characteristics & IMAGE_FILE_SYSTEM) {
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162 | fout << "Can't convert system files" << endl;
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163 | WinMessageBox(HWND_DESKTOP, HWND_DESKTOP, szExeErrorMsg, szErrorTitle, 0, MB_OK | MB_ERROR | MB_MOVEABLE);
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164 | goto failure;
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165 | }
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166 |
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167 | if(fh.Characteristics & IMAGE_FILE_RELOCS_STRIPPED) {
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168 | fout << "No fixups, might not run!" << endl;
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169 | }
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170 |
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171 | GetPEOptionalHeader (win32file, &oh);
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172 | fout << "PE file : " << szFileName << endl;
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173 | fout << "PE Optional header: " << endl;
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174 | fout << "Preferred address : " << oh.ImageBase << endl;
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175 | fout << "Base Of Code : " << oh.BaseOfCode << endl;
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176 | fout << "CodeSize : " << oh.SizeOfCode << endl;
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177 | fout << "Base Of Data : " << oh.BaseOfData << endl;
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178 | fout << "Data Size (uninit): " << oh.SizeOfUninitializedData << endl;
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179 | fout << "Data Size (init) : " << oh.SizeOfInitializedData << endl;
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180 | fout << "Entry Point : " << oh.AddressOfEntryPoint << endl;
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181 | fout << "Section Alignment : " << oh.SectionAlignment << endl;
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182 | fout << "Stack Reserve size: " << oh.SizeOfStackReserve << endl;
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183 | fout << "Stack Commit size : " << oh.SizeOfStackCommit << endl;
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184 | fout << "SizeOfHeapReserve : " << oh.SizeOfHeapReserve << endl;
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185 | fout << "SizeOfHeapCommit : " << oh.SizeOfHeapCommit << endl;
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186 | fout << "FileAlignment : " << oh.FileAlignment << endl;
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187 | fout << "Subsystem : " << oh.Subsystem << endl;
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188 |
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189 | nSections = NR_SECTIONS(win32file);
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190 |
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191 | if(loadType == REAL_LOAD)
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192 | {
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193 | if ((psh = (PIMAGE_SECTION_HEADER)SECTIONHDROFF (win32file)) != NULL) {
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194 | fout << endl << "*************************PE SECTIONS START**************************" << endl;
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195 | for (i=0; i<nSections; i++) {
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196 | fout << "Raw data size: " << hex(psh[i].SizeOfRawData) << endl;
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197 | fout << "Virtual Address: " << hex(psh[i].VirtualAddress) << endl;
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198 | fout << "Virtual Size: " << hex(psh[i].Misc.VirtualSize) << endl;
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199 | fout << "Pointer to raw data: " << hex(psh[i].PointerToRawData) << endl;
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200 | fout << "Section flags: " << hex(psh[i].Characteristics) << endl << endl;
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201 | if(strcmp(psh[i].Name, ".reloc") == 0) {
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202 | fout << ".reloc" << endl << endl;
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203 | addSection(SECTION_RELOC, (char *)win32file+psh[i].PointerToRawData,
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204 | psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
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205 | psh[i].Misc.VirtualSize);
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206 | continue;
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207 | }
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208 | if(strcmp(psh[i].Name, ".edata") == 0) {
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209 | fout << ".edata" << endl << endl;
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210 | addSection(SECTION_EXPORT, (char *)win32file+psh[i].PointerToRawData,
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211 | psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
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212 | psh[i].Misc.VirtualSize);
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213 | continue;
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214 | }
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215 | if(strcmp(psh[i].Name, ".rsrc") == 0) {
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216 | fout << ".rsrc" << endl << endl;
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217 | addSection(SECTION_RESOURCE, (char *)win32file+psh[i].PointerToRawData,
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218 | psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
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219 | psh[i].Misc.VirtualSize);
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220 | continue;
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221 | }
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222 | if(strcmp(psh[i].Name, ".tls") == 0)
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223 | {
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224 | tlsDir = (IMAGE_TLS_DIRECTORY *)ImageDirectoryOffset(win32file, IMAGE_DIRECTORY_ENTRY_TLS);
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225 | if(tlsDir) {
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226 | fout << "TLS Directory" << endl;
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227 | fout << "TLS Address of Index " << hex((ULONG)tlsDir->AddressOfIndex) << endl;
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228 | fout << "TLS Address of Callbacks " << hex((ULONG)tlsDir->AddressOfCallBacks) << endl;
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229 | fout << "TLS SizeOfZeroFill " << hex(tlsDir->SizeOfZeroFill) << endl;
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230 | fout << "TLS Characteristics " << hex(tlsDir->Characteristics) << endl;
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231 | addSection(SECTION_TLS, (char *)win32file+psh[i].PointerToRawData,
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232 | psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
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233 | psh[i].Misc.VirtualSize);
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234 | }
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235 | continue;
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236 | }
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237 |
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238 | if(strcmp(psh[i].Name, ".debug") == 0) {
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239 | fout << ".rdebug" << endl << endl;
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240 | addSection(SECTION_DEBUG, (char *)win32file+psh[i].PointerToRawData,
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241 | psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
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242 | psh[i].Misc.VirtualSize);
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243 | continue;
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244 | }
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245 | if(IsImportSection(win32file, &psh[i]))
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246 | {
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247 | int type = SECTION_IMPORT;
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248 | fout << "Import Data Section" << endl << endl;
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249 | if(psh[i].Characteristics & IMAGE_SCN_CNT_CODE) {
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250 | fout << "Also Code Section" << endl << endl;
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251 | type |= SECTION_CODE;
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252 | }
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253 | addSection(type, (char *)win32file+psh[i].PointerToRawData,
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254 | psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
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255 | psh[i].Misc.VirtualSize);
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256 | continue;
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257 | }
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258 |
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259 | //KSO Sun 1998-08-09: Borland does not alway set the CODE flag for its "CODE" section
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260 | if( psh[i].Characteristics & IMAGE_SCN_CNT_CODE ||
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261 | (psh[i].Characteristics & IMAGE_SCN_MEM_EXECUTE &&
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262 | !(psh[i].Characteristics & (IMAGE_SCN_CNT_UNINITIALIZED_DATA | IMAGE_SCN_CNT_INITIALIZED_DATA))) //KSO: make sure its not marked as a datasection
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263 | )
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264 | {
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265 | fout << "Code Section" << endl << endl;
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266 | addSection(SECTION_CODE, (char *)win32file+psh[i].PointerToRawData,
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267 | psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
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268 | psh[i].Misc.VirtualSize);
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269 | continue;
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270 | }
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271 | if(!(psh[i].Characteristics & IMAGE_SCN_MEM_WRITE)) { //read only data section
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272 | fout << "Read Only Data Section" << endl << endl;
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273 | addSection(SECTION_READONLYDATA, (char *)win32file+psh[i].PointerToRawData,
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274 | psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
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275 | psh[i].Misc.VirtualSize);
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276 | continue;
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277 | }
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278 | if(psh[i].Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA) {
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279 | fout << "Uninitialized Data Section" << endl << endl;
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280 | addSection(SECTION_UNINITDATA, (char *)win32file+psh[i].PointerToRawData,
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281 | psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
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282 | psh[i].Misc.VirtualSize);
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283 | continue;
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284 | }
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285 | if(psh[i].Characteristics & IMAGE_SCN_CNT_INITIALIZED_DATA) {
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286 | fout << "Initialized Data Section" << endl << endl;
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287 | addSection(SECTION_INITDATA, (char *)win32file+psh[i].PointerToRawData,
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288 | psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
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289 | psh[i].Misc.VirtualSize);
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290 | continue;
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291 | }
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292 | if(psh[i].Characteristics & (IMAGE_SCN_MEM_WRITE | IMAGE_SCN_MEM_READ)) {
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293 | fout << "Other Section, stored as read/write uninit data" << endl << endl;
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294 | addSection(SECTION_UNINITDATA, (char *)win32file+psh[i].PointerToRawData,
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295 | psh[i].SizeOfRawData, psh[i].VirtualAddress + oh.ImageBase,
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296 | psh[i].Misc.VirtualSize);
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297 | continue;
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298 | }
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299 | fout << "Unknown section" << endl;
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300 | goto failure;
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301 | }
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302 | }
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303 | fout << "*************************PE SECTIONS END **************************" << endl;
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304 | imageSize += imageVirtBase - oh.ImageBase;
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305 | fout << "Total size of Image " << imageSize << endl;
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306 | fout << "imageVirtBase " << imageVirtBase << endl;
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307 | fout << "imageVirtEnd " << imageVirtEnd << endl;
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308 |
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309 | //In case there are any gaps between sections, adjust size
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310 | if(imageSize != imageVirtEnd - oh.ImageBase) {
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311 | fout << "imageSize != imageVirtEnd - oh.ImageBase!" << endl;
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312 | imageSize = imageVirtEnd - oh.ImageBase;
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313 | }
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314 | if(allocSections(reservedMem) == FALSE) {
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315 | fout << "Failed to allocate image memory, rc " << errorState << endl;
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316 | goto failure;
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317 | }
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318 | fout << "OS/2 base address " << realBaseAddress << endl;
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319 | if(storeSections((char *)win32file) == FALSE) {
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320 | fout << "Failed to store sections, rc " << errorState << endl;
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321 | goto failure;
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322 | }
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323 | if(oh.AddressOfEntryPoint) {
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324 | entryPoint = realBaseAddress + oh.AddressOfEntryPoint;
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325 | }
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326 | else {
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327 | fout << "EntryPoint == NULL" << endl;
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328 | entryPoint = NULL;
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329 | }
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330 |
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331 | if(tlsDir != NULL) {
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332 | Section *sect = findSection(SECTION_TLS);
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333 |
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334 | if(sect == NULL) {
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335 | fout << "Couldn't find TLS section!!" << endl;
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336 | goto failure;
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337 | }
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338 | setTLSAddress((char *)(sect->realvirtaddr + (tlsDir->StartAddressOfRawData - sect->virtaddr)));
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339 | setTLSInitSize(tlsDir->EndAddressOfRawData - tlsDir->StartAddressOfRawData);
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340 | setTLSTotalSize(tlsDir->EndAddressOfRawData - tlsDir->StartAddressOfRawData + tlsDir->SizeOfZeroFill);
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341 |
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342 | sect = findSectionByAddr((ULONG)tlsDir->AddressOfIndex);
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343 | if(sect == NULL) {
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344 | fout << "Couldn't find TLS AddressOfIndex section!!" << endl;
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345 | goto failure;
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346 | }
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347 | setTLSIndexAddr((LPDWORD)(sect->realvirtaddr + ((ULONG)tlsDir->AddressOfIndex - sect->virtaddr)));
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348 |
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349 | sect = findSectionByAddr((ULONG)tlsDir->AddressOfCallBacks);
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350 | if(sect == NULL) {
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351 | fout << "Couldn't find TLS AddressOfCallBacks section!!" << endl;
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352 | goto failure;
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353 | }
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354 | setTLSCallBackAddr((PIMAGE_TLS_CALLBACK *)(sect->realvirtaddr + ((ULONG)tlsDir->AddressOfCallBacks - sect->virtaddr)));
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355 | }
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356 |
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357 | if(realBaseAddress != oh.ImageBase) {
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358 | if(setFixups((PIMAGE_BASE_RELOCATION)ImageDirectoryOffset(win32file, IMAGE_DIRECTORY_ENTRY_BASERELOC)) == FALSE) {
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359 | fout << "Failed to set fixups" << endl;
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360 | goto failure;
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361 | }
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362 | }
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363 | if(fh.Characteristics & IMAGE_FILE_DLL) {
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364 | if(processExports((char *)win32file) == FALSE) {
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365 | fout << "Failed to process exported apis" << endl;
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366 | goto failure;
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367 | }
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368 | }
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369 |
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370 | //SvL: Use pointer to image header as module handle now. Some apps needs this
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371 | hinstance = (HINSTANCE)realBaseAddress;
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372 | }
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373 |
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374 | //PH: get pResDir pointer correct first, since processImports may
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375 | // implicitly call functions depending on it.
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376 | IMAGE_SECTION_HEADER sh;
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377 | if(GetSectionHdrByName (win32file, &sh, ".rsrc")) {
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378 | //get offset in resource object of directory entry
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379 | pResDir = (PIMAGE_RESOURCE_DIRECTORY)(sh.VirtualAddress + realBaseAddress);
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380 | pResourceSectionStart = (ULONG)pResSection->virtaddr - oh.ImageBase;
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381 | }
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382 |
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383 | if (loadType == REAL_LOAD)
|
---|
384 | {
|
---|
385 | if(processImports((char *)win32file) == FALSE) {
|
---|
386 | fout << "Failed to process imports!" << endl;
|
---|
387 | goto failure;
|
---|
388 | }
|
---|
389 |
|
---|
390 | //set final memory protection flags (storeSections sets them to read/write)
|
---|
391 | if(setMemFlags() == FALSE) {
|
---|
392 | fout << "Failed to set memory protection" << endl;
|
---|
393 | goto failure;
|
---|
394 | }
|
---|
395 | CloseHandle(fImgMapping);
|
---|
396 | fImgMapping = 0;
|
---|
397 | }
|
---|
398 | return(TRUE);
|
---|
399 | failure:
|
---|
400 | if(fImgMapping) CloseHandle(fImgMapping);
|
---|
401 | fImgMapping = 0;
|
---|
402 | errorState = ERROR_INTERNAL;
|
---|
403 | return FALSE;
|
---|
404 | }
|
---|
405 | //******************************************************************************
|
---|
406 | //******************************************************************************
|
---|
407 | void Win32PeLdrImage::addSection(ULONG type, char *rawdata, ULONG rawsize, ULONG virtaddress, ULONG virtsize)
|
---|
408 | {
|
---|
409 | virtsize = max(rawsize, virtsize);
|
---|
410 |
|
---|
411 | section[nrsections].type = type;
|
---|
412 | section[nrsections].rawdata = rawdata;
|
---|
413 | section[nrsections].rawsize = rawsize;
|
---|
414 | section[nrsections].virtaddr = virtaddress;
|
---|
415 |
|
---|
416 | if(type == SECTION_RESOURCE) {
|
---|
417 | pResSection = §ion[nrsections];
|
---|
418 | }
|
---|
419 | virtsize = ((virtsize - 1) & ~0xFFF) + PAGE_SIZE;
|
---|
420 | imageSize += virtsize;
|
---|
421 | section[nrsections].virtualsize = virtsize;
|
---|
422 |
|
---|
423 | if(virtaddress < imageVirtBase)
|
---|
424 | imageVirtBase = virtaddress;
|
---|
425 | if(virtaddress + virtsize > imageVirtEnd)
|
---|
426 | imageVirtEnd = virtaddress + virtsize;
|
---|
427 |
|
---|
428 | nrsections++;
|
---|
429 | }
|
---|
430 | //******************************************************************************
|
---|
431 | //******************************************************************************
|
---|
432 | BOOL Win32PeLdrImage::allocSections(ULONG reservedMem)
|
---|
433 | {
|
---|
434 | APIRET rc;
|
---|
435 | ULONG baseAddress;
|
---|
436 |
|
---|
437 | if(fh.Characteristics & IMAGE_FILE_RELOCS_STRIPPED) {
|
---|
438 | fout << "No fixups, might not run!" << endl;
|
---|
439 | return allocFixedMem(reservedMem);
|
---|
440 | }
|
---|
441 | rc = DosAllocMem((PPVOID)&baseAddress, imageSize, PAG_READ | flAllocMem);
|
---|
442 | if(rc) {
|
---|
443 | errorState = rc;
|
---|
444 | return(FALSE);
|
---|
445 | }
|
---|
446 | realBaseAddress = baseAddress;
|
---|
447 | return(TRUE);
|
---|
448 | }
|
---|
449 | //******************************************************************************
|
---|
450 | //******************************************************************************
|
---|
451 | Section *Win32PeLdrImage::findSection(ULONG type)
|
---|
452 | {
|
---|
453 | for(int i=0;i<nrsections;i++) {
|
---|
454 | if(section[i].type == type) {
|
---|
455 | return §ion[i];
|
---|
456 | }
|
---|
457 | }
|
---|
458 | return NULL;
|
---|
459 | }
|
---|
460 | //******************************************************************************
|
---|
461 | //******************************************************************************
|
---|
462 | Section *Win32PeLdrImage::findSectionByAddr(ULONG addr)
|
---|
463 | {
|
---|
464 | for(int i=0;i<nrsections;i++) {
|
---|
465 | if(section[i].virtaddr <= addr && section[i].virtaddr + section[i].virtualsize > addr) {
|
---|
466 | return §ion[i];
|
---|
467 | }
|
---|
468 | }
|
---|
469 | return NULL;
|
---|
470 | }
|
---|
471 | //******************************************************************************
|
---|
472 | #define FALLOC_SIZE (1024*1024)
|
---|
473 | //NOTE: Needs testing (while loop)
|
---|
474 | //TODO: Free unused (parts of) reservedMem
|
---|
475 | //******************************************************************************
|
---|
476 | BOOL Win32PeLdrImage::allocFixedMem(ULONG reservedMem)
|
---|
477 | {
|
---|
478 | ULONG address = 0;
|
---|
479 | ULONG *memallocs;
|
---|
480 | ULONG alloccnt = 0;
|
---|
481 | ULONG diff, i, baseAddress;
|
---|
482 | APIRET rc;
|
---|
483 |
|
---|
484 | realBaseAddress = 0;
|
---|
485 |
|
---|
486 | if(reservedMem && reservedMem <= oh.ImageBase &&
|
---|
487 | ((oh.ImageBase - reservedMem) + imageSize < PELDR_RESERVEDMEMSIZE))
|
---|
488 | {
|
---|
489 | //ok, it fits perfectly
|
---|
490 | realBaseAddress = oh.ImageBase;
|
---|
491 | return TRUE;
|
---|
492 | }
|
---|
493 |
|
---|
494 | //Reserve enough space to store 4096 pointers to 1MB memory chunks
|
---|
495 | memallocs = (ULONG *)malloc(4096*sizeof(ULONG *));
|
---|
496 | if(memallocs == NULL) {
|
---|
497 | fout << "allocFixedMem: MALLOC FAILED for memallocs" << endl;
|
---|
498 | return FALSE;
|
---|
499 | }
|
---|
500 |
|
---|
501 | while(TRUE) {
|
---|
502 | rc = DosAllocMem((PPVOID)&address, FALLOC_SIZE, PAG_READ | flAllocMem);
|
---|
503 | if(rc) break;
|
---|
504 |
|
---|
505 | fout << "DosAllocMem returned " << address << endl;
|
---|
506 | if(address + FALLOC_SIZE >= oh.ImageBase) {
|
---|
507 | if(address > oh.ImageBase) {//we've passed it!
|
---|
508 | DosFreeMem((PVOID)address);
|
---|
509 | break;
|
---|
510 | }
|
---|
511 | //found the right address
|
---|
512 | DosFreeMem((PVOID)address);
|
---|
513 |
|
---|
514 | diff = oh.ImageBase - address;
|
---|
515 | if(diff) {
|
---|
516 | rc = DosAllocMem((PPVOID)&address, diff, PAG_READ | flAllocMem);
|
---|
517 | if(rc) break;
|
---|
518 | }
|
---|
519 | rc = DosAllocMem((PPVOID)&baseAddress, imageSize, PAG_READ | flAllocMem);
|
---|
520 | if(rc) break;
|
---|
521 |
|
---|
522 | if(diff) DosFreeMem((PVOID)address);
|
---|
523 |
|
---|
524 | realBaseAddress = baseAddress;
|
---|
525 | break;
|
---|
526 | }
|
---|
527 | memallocs[alloccnt++] = address;
|
---|
528 | }
|
---|
529 | for(i=0;i<alloccnt;i++) {
|
---|
530 | DosFreeMem((PVOID)memallocs[i]);
|
---|
531 | }
|
---|
532 | free(memallocs);
|
---|
533 |
|
---|
534 | if(realBaseAddress == 0) //Let me guess.. MS Office app?
|
---|
535 | return(FALSE);
|
---|
536 |
|
---|
537 | return(TRUE);
|
---|
538 | }
|
---|
539 | //******************************************************************************
|
---|
540 | //******************************************************************************
|
---|
541 | BOOL Win32PeLdrImage::storeSections(char *win32file)
|
---|
542 | {
|
---|
543 | int i;
|
---|
544 | APIRET rc;
|
---|
545 | ULONG pagFlags = PAG_COMMIT;
|
---|
546 | ULONG headersize;
|
---|
547 | WINIMAGE_LOOKUP *imgLookup;
|
---|
548 |
|
---|
549 | //Commit memory for image header
|
---|
550 | headersize = sizeof(IMAGE_DOS_HEADER) + sizeof(IMAGE_NT_HEADERS) +
|
---|
551 | sizeof(IMAGE_SECTION_HEADER) * fh.NumberOfSections;
|
---|
552 |
|
---|
553 | if(headersize + sizeof(WINIMAGE_LOOKUP) < PAGE_SIZE) {
|
---|
554 | headersize = PAGE_SIZE;
|
---|
555 | }
|
---|
556 | else {//ooops, just in case this doesn't work
|
---|
557 | fout << "ERROR: storeSections: header too big!!!!!! Fatal error" << endl;
|
---|
558 | return FALSE;
|
---|
559 | }
|
---|
560 |
|
---|
561 | rc = DosSetMem((PVOID)realBaseAddress, headersize, pagFlags | PAG_WRITE | PAG_READ);
|
---|
562 | if(rc) {
|
---|
563 | fout << "DosSetMem failed for Image header! " << rc << endl;
|
---|
564 | return FALSE;
|
---|
565 | }
|
---|
566 | // Store the NT header at the load addr
|
---|
567 | memcpy((char *)realBaseAddress, win32file, sizeof(IMAGE_DOS_HEADER));
|
---|
568 | memcpy((char *)PE_HEADER(realBaseAddress), PE_HEADER(win32file), sizeof(IMAGE_NT_HEADERS));
|
---|
569 | memcpy(PE_SECTIONS(realBaseAddress), PE_SECTIONS(win32file),
|
---|
570 | sizeof(IMAGE_SECTION_HEADER) * fh.NumberOfSections );
|
---|
571 |
|
---|
572 | imgLookup = WINIMAGE_LOOKUPADDR(realBaseAddress);
|
---|
573 | imgLookup->image = this;
|
---|
574 | #ifdef DEBUG
|
---|
575 | imgLookup->magic = MAGIC_WINIMAGE;
|
---|
576 | #endif
|
---|
577 |
|
---|
578 | // Process all the image sections
|
---|
579 | for(i=0;i<nrsections;i++) {
|
---|
580 | section[i].realvirtaddr = realBaseAddress + (section[i].virtaddr - oh.ImageBase);
|
---|
581 | }
|
---|
582 | for(i=0;i<nrsections;i++) {
|
---|
583 | pagFlags = PAG_COMMIT;
|
---|
584 | switch(section[i].type) {
|
---|
585 | case SECTION_CODE:
|
---|
586 | case (SECTION_CODE | SECTION_IMPORT):
|
---|
587 | case SECTION_INITDATA:
|
---|
588 | case SECTION_UNINITDATA:
|
---|
589 | case SECTION_IMPORT:
|
---|
590 | case SECTION_READONLYDATA:
|
---|
591 | case SECTION_RESOURCE:
|
---|
592 | case SECTION_TLS:
|
---|
593 | pagFlags |= PAG_WRITE | PAG_READ;
|
---|
594 | break;
|
---|
595 | case SECTION_EXPORT:
|
---|
596 | case SECTION_DEBUG:
|
---|
597 | case SECTION_RELOC:
|
---|
598 | pagFlags = 0; //don't commit
|
---|
599 | break;
|
---|
600 | }
|
---|
601 | if(pagFlags == 0) continue; //debug or export section
|
---|
602 |
|
---|
603 | rc = DosSetMem((PVOID)section[i].realvirtaddr, section[i].virtualsize, pagFlags);
|
---|
604 | if(rc) {
|
---|
605 | errorState = rc;
|
---|
606 | return(FALSE);
|
---|
607 | }
|
---|
608 | if(section[i].type != SECTION_UNINITDATA) {
|
---|
609 | assert(section[i].rawdata);
|
---|
610 | memcpy((char *)section[i].realvirtaddr, section[i].rawdata, section[i].rawsize);
|
---|
611 | }
|
---|
612 | }
|
---|
613 | return(TRUE);
|
---|
614 | }
|
---|
615 | //******************************************************************************
|
---|
616 | //******************************************************************************
|
---|
617 | BOOL Win32PeLdrImage::setMemFlags()
|
---|
618 | {
|
---|
619 | int i;
|
---|
620 | APIRET rc;
|
---|
621 | ULONG pagFlags = 0;
|
---|
622 |
|
---|
623 | for(i=0;i<nrsections;i++) {
|
---|
624 | pagFlags = 0;
|
---|
625 | switch(section[i].type) {
|
---|
626 | case SECTION_CODE:
|
---|
627 | case (SECTION_CODE | SECTION_IMPORT):
|
---|
628 | pagFlags |= PAG_EXECUTE | PAG_READ;
|
---|
629 | break;
|
---|
630 | case SECTION_INITDATA:
|
---|
631 | case SECTION_UNINITDATA:
|
---|
632 | case SECTION_IMPORT: //TODO: read only?
|
---|
633 | pagFlags |= PAG_WRITE | PAG_READ;
|
---|
634 | break;
|
---|
635 | case SECTION_READONLYDATA:
|
---|
636 | case SECTION_RESOURCE:
|
---|
637 | case SECTION_TLS:
|
---|
638 | pagFlags |= PAG_READ;
|
---|
639 | break;
|
---|
640 | default:
|
---|
641 | continue;
|
---|
642 | }
|
---|
643 | rc = DosSetMem((PVOID)section[i].realvirtaddr, section[i].virtualsize, pagFlags);
|
---|
644 | if(rc) {
|
---|
645 | errorState = rc;
|
---|
646 | return(FALSE);
|
---|
647 | }
|
---|
648 | }
|
---|
649 | return(TRUE);
|
---|
650 | }
|
---|
651 | //******************************************************************************
|
---|
652 | //******************************************************************************
|
---|
653 | BOOL Win32PeLdrImage::setFixups(PIMAGE_BASE_RELOCATION prel)
|
---|
654 | {
|
---|
655 | int i, j;
|
---|
656 | char *page;
|
---|
657 | ULONG count;
|
---|
658 |
|
---|
659 | if(fh.Characteristics & IMAGE_FILE_RELOCS_STRIPPED) {
|
---|
660 | return(TRUE);
|
---|
661 | }
|
---|
662 |
|
---|
663 | if(prel) {
|
---|
664 | j = 1;
|
---|
665 | while(prel->VirtualAddress) {
|
---|
666 | page = (char *)((char *)prel + (ULONG)prel->VirtualAddress);
|
---|
667 | count = (prel->SizeOfBlock - 8)/2;
|
---|
668 | fout.setf(ios::hex, ios::basefield);
|
---|
669 | fout << "Page " << j << " Address " << (ULONG)prel->VirtualAddress << " Count " << count << endl;
|
---|
670 | fout.setf(ios::dec, ios::basefield);
|
---|
671 | j++;
|
---|
672 | for(i=0;i<count;i++) {
|
---|
673 | int type = prel->TypeOffset[i] >> 12;
|
---|
674 | int offset = prel->TypeOffset[i] & 0xFFF;
|
---|
675 | switch(type) {
|
---|
676 | case IMAGE_REL_BASED_ABSOLUTE:
|
---|
677 | //// fout << "absolute fixup; unused" << endl;
|
---|
678 | break; //skip
|
---|
679 | case IMAGE_REL_BASED_HIGHLOW:
|
---|
680 | //// fout << "address " << offset << " type " << type << endl;
|
---|
681 | AddOff32Fixup(oh.ImageBase +
|
---|
682 | prel->VirtualAddress + offset);
|
---|
683 | break;
|
---|
684 | case IMAGE_REL_BASED_HIGH:
|
---|
685 | AddOff16Fixup(oh.ImageBase + prel->VirtualAddress + offset, TRUE);
|
---|
686 | break;
|
---|
687 | case IMAGE_REL_BASED_LOW:
|
---|
688 | AddOff16Fixup(oh.ImageBase + prel->VirtualAddress + offset, FALSE);
|
---|
689 | break;
|
---|
690 | case IMAGE_REL_BASED_HIGHADJ:
|
---|
691 | case IMAGE_REL_BASED_MIPS_JMPADDR:
|
---|
692 | default:
|
---|
693 | fout << "Unknown/unsupported fixup type!" << endl;
|
---|
694 | break;
|
---|
695 | }
|
---|
696 | }
|
---|
697 | prel = (PIMAGE_BASE_RELOCATION)((char*)prel + prel->SizeOfBlock);
|
---|
698 | }//while
|
---|
699 | }
|
---|
700 | else {
|
---|
701 | fout << "No internal fixups found!\n" << endl;
|
---|
702 | errorState = ERROR_INTERNAL;
|
---|
703 | return(FALSE);
|
---|
704 | }
|
---|
705 | return(TRUE);
|
---|
706 | }
|
---|
707 | //******************************************************************************
|
---|
708 | //******************************************************************************
|
---|
709 | void Win32PeLdrImage::AddOff32Fixup(ULONG fixupaddr)
|
---|
710 | {
|
---|
711 | ULONG orgaddr;
|
---|
712 | ULONG *fixup;
|
---|
713 |
|
---|
714 | fixup = (ULONG *)(fixupaddr - oh.ImageBase + realBaseAddress);
|
---|
715 | orgaddr = *fixup;
|
---|
716 | *fixup = realBaseAddress + (*fixup - oh.ImageBase);
|
---|
717 | }
|
---|
718 | //******************************************************************************
|
---|
719 | //******************************************************************************
|
---|
720 | void Win32PeLdrImage::AddOff16Fixup(ULONG fixupaddr, BOOL fHighFixup)
|
---|
721 | {
|
---|
722 | ULONG orgaddr;
|
---|
723 | USHORT *fixup;
|
---|
724 |
|
---|
725 | fixup = (USHORT *)(fixupaddr - oh.ImageBase + realBaseAddress);
|
---|
726 | orgaddr = *fixup;
|
---|
727 | if(fHighFixup) {
|
---|
728 | *fixup += (USHORT)((realBaseAddress - oh.ImageBase) >> 16);
|
---|
729 | }
|
---|
730 | else {
|
---|
731 | *fixup += (USHORT)((realBaseAddress - oh.ImageBase) & 0xFFFF);
|
---|
732 | }
|
---|
733 | }
|
---|
734 | //******************************************************************************
|
---|
735 | //******************************************************************************
|
---|
736 | void Win32PeLdrImage::StoreImportByOrd(Win32DllBase *WinDll, ULONG ordinal, ULONG impaddr)
|
---|
737 | {
|
---|
738 | ULONG *import;
|
---|
739 | ULONG apiaddr;
|
---|
740 |
|
---|
741 | import = (ULONG *)(impaddr - oh.ImageBase + realBaseAddress);
|
---|
742 | apiaddr = WinDll->getApi(ordinal);
|
---|
743 | if(apiaddr == 0)
|
---|
744 | {
|
---|
745 | dprintf(("KERNEL32:Win32PeLdrImage - %s.%u not found\n",
|
---|
746 | WinDll->getName(),
|
---|
747 | ordinal));
|
---|
748 |
|
---|
749 | fout << "--->>> NOT FOUND!";
|
---|
750 | *import = (ULONG)MissingApi;
|
---|
751 | }
|
---|
752 | else *import = apiaddr;
|
---|
753 | }
|
---|
754 | //******************************************************************************
|
---|
755 | //******************************************************************************
|
---|
756 | void Win32PeLdrImage::StoreImportByName(Win32DllBase *WinDll, char *impname, ULONG impaddr)
|
---|
757 | {
|
---|
758 | ULONG *import;
|
---|
759 | ULONG apiaddr;
|
---|
760 |
|
---|
761 | import = (ULONG *)(impaddr - oh.ImageBase + realBaseAddress);
|
---|
762 | apiaddr = WinDll->getApi(impname);
|
---|
763 | if(apiaddr == 0)
|
---|
764 | {
|
---|
765 | dprintf(("KERNEL32:Win32PeLdrImage - %s.%s not found\n",
|
---|
766 | WinDll->getName(),
|
---|
767 | impname));
|
---|
768 |
|
---|
769 | fout << "--->>> NOT FOUND!";
|
---|
770 | *import = (ULONG)MissingApi;
|
---|
771 | }
|
---|
772 | else *import = apiaddr;
|
---|
773 | }
|
---|
774 | //******************************************************************************
|
---|
775 | //******************************************************************************
|
---|
776 | BOOL Win32PeLdrImage::processExports(char *win32file)
|
---|
777 | {
|
---|
778 | IMAGE_SECTION_HEADER sh;
|
---|
779 | PIMAGE_EXPORT_DIRECTORY ped;
|
---|
780 | ULONG *ptrNames, *ptrAddress;
|
---|
781 | USHORT *ptrOrd;
|
---|
782 | int i;
|
---|
783 |
|
---|
784 | /* get section header and pointer to data directory for .edata section */
|
---|
785 | if((ped = (PIMAGE_EXPORT_DIRECTORY)ImageDirectoryOffset
|
---|
786 | (win32file, IMAGE_DIRECTORY_ENTRY_EXPORT)) != NULL &&
|
---|
787 | GetSectionHdrByImageDir(win32file, IMAGE_DIRECTORY_ENTRY_EXPORT, &sh) ) {
|
---|
788 |
|
---|
789 | fout << "Exported Functions: " << endl;
|
---|
790 | ptrOrd = (USHORT *)((ULONG)ped->AddressOfNameOrdinals -
|
---|
791 | (ULONG)sh.VirtualAddress +
|
---|
792 | (ULONG)sh.PointerToRawData + (ULONG)win32file);
|
---|
793 | ptrNames = (ULONG *)((ULONG)ped->AddressOfNames -
|
---|
794 | (ULONG)sh.VirtualAddress +
|
---|
795 | (ULONG)sh.PointerToRawData + (ULONG)win32file);
|
---|
796 | ptrAddress = (ULONG *)((ULONG)ped->AddressOfFunctions -
|
---|
797 | (ULONG)sh.VirtualAddress +
|
---|
798 | (ULONG)sh.PointerToRawData + (ULONG)win32file);
|
---|
799 | nrOrdExports = ped->NumberOfFunctions;
|
---|
800 | nrNameExports = ped->NumberOfNames;
|
---|
801 |
|
---|
802 | int ord, RVAExport;
|
---|
803 | char *name;
|
---|
804 | for(i=0;i<ped->NumberOfNames;i++) {
|
---|
805 | ord = ptrOrd[i] + ped->Base;
|
---|
806 | name = (char *)((ULONG)ptrNames[i] - (ULONG)sh.VirtualAddress +
|
---|
807 | (ULONG)sh.PointerToRawData + (ULONG)win32file);
|
---|
808 | RVAExport = ptrAddress[ptrOrd[i]];
|
---|
809 | #ifdef FORWARDERS
|
---|
810 | if(RVAExport < sh.VirtualAddress || RVAExport > sh.VirtualAddress + sh.SizeOfRawData) {
|
---|
811 | #endif
|
---|
812 | //points to code (virtual address relative to oh.ImageBase
|
---|
813 | fout << "address 0x";
|
---|
814 | fout.setf(ios::hex, ios::basefield);
|
---|
815 | fout << RVAExport;
|
---|
816 | fout.setf(ios::dec, ios::basefield);
|
---|
817 | fout << " " << name << "@" << ord << endl;
|
---|
818 | AddNameExport(oh.ImageBase + RVAExport, name, ord);
|
---|
819 | #ifdef FORWARDERS
|
---|
820 |
|
---|
821 | }
|
---|
822 | else {//forwarder
|
---|
823 | char *forward = (char *)((ULONG)RVAExport -
|
---|
824 | (ULONG)sh.VirtualAddress +
|
---|
825 | (ULONG)sh.PointerToRawData +
|
---|
826 | (ULONG)win32file);
|
---|
827 | fout << RVAExport << " " << name << " @" << ord << " is forwarder to " << (int)forward << endl;
|
---|
828 | }
|
---|
829 | #endif
|
---|
830 | }
|
---|
831 | for(i=0;i<max(ped->NumberOfNames,ped->NumberOfFunctions);i++) {
|
---|
832 | ord = ped->Base + i; //Correct??
|
---|
833 | RVAExport = ptrAddress[i];
|
---|
834 | #ifdef FORWARDERS
|
---|
835 | if(RVAExport < sh.VirtualAddress || RVAExport > sh.VirtualAddress + sh.SizeOfRawData) {
|
---|
836 | #endif
|
---|
837 | if(RVAExport) {
|
---|
838 | //points to code (virtual address relative to oh.ImageBase
|
---|
839 | fout << "ord " << ord << " at 0x";
|
---|
840 | fout.setf(ios::hex, ios::basefield);
|
---|
841 | fout << RVAExport << endl;
|
---|
842 | fout.setf(ios::dec, ios::basefield);
|
---|
843 | AddOrdExport(oh.ImageBase + RVAExport, ord);
|
---|
844 | }
|
---|
845 | #ifdef FORWARDERS
|
---|
846 | }
|
---|
847 | else {//forwarder or empty
|
---|
848 | char *forward = (char *)((ULONG)RVAExport -
|
---|
849 | (ULONG)sh.VirtualAddress +
|
---|
850 | (ULONG)sh.PointerToRawData +
|
---|
851 | (ULONG)win32file);
|
---|
852 | fout << "ord " << ord << " at 0x";
|
---|
853 | fout.setf(ios::hex, ios::basefield);
|
---|
854 | fout << RVAExport << " is forwarder to 0x" << (int)forward << endl;
|
---|
855 | fout.setf(ios::dec, ios::basefield);
|
---|
856 | }
|
---|
857 | #endif
|
---|
858 | }
|
---|
859 | }
|
---|
860 | return(TRUE);
|
---|
861 | }
|
---|
862 | //******************************************************************************
|
---|
863 | //******************************************************************************
|
---|
864 | void Win32PeLdrImage::AddNameExport(ULONG virtaddr, char *apiname, ULONG ordinal)
|
---|
865 | {
|
---|
866 | ULONG nsize;
|
---|
867 |
|
---|
868 | if(nameexports == NULL) {
|
---|
869 | nameExportSize= 4096;
|
---|
870 | nameexports = (NameExport *)malloc(nameExportSize);
|
---|
871 | curnameexport = nameexports;
|
---|
872 | }
|
---|
873 | nsize = (ULONG)curnameexport - (ULONG)nameexports;
|
---|
874 | if(nsize + sizeof(NameExport) + strlen(apiname) > nameExportSize) {
|
---|
875 | nameExportSize += 4096;
|
---|
876 | char *tmp = (char *)nameexports;
|
---|
877 | nameexports = (NameExport *)malloc(nameExportSize);
|
---|
878 | memcpy(nameexports, tmp, nsize);
|
---|
879 | curnameexport = (NameExport *)((ULONG)nameexports + nsize);
|
---|
880 | free(tmp);
|
---|
881 | }
|
---|
882 | curnameexport->virtaddr = realBaseAddress + (virtaddr - oh.ImageBase);
|
---|
883 | curnameexport->ordinal = ordinal;
|
---|
884 | *(ULONG *)curnameexport->name = 0;
|
---|
885 | strcpy(curnameexport->name, apiname);
|
---|
886 |
|
---|
887 | curnameexport->nlength = strlen(apiname) + 1;
|
---|
888 | if(curnameexport->nlength < sizeof(curnameexport->name))
|
---|
889 | curnameexport->nlength = sizeof(curnameexport->name);
|
---|
890 |
|
---|
891 | curnameexport = (NameExport *)((ULONG)curnameexport->name + curnameexport->nlength);
|
---|
892 | }
|
---|
893 | //******************************************************************************
|
---|
894 | //******************************************************************************
|
---|
895 | void Win32PeLdrImage::AddOrdExport(ULONG virtaddr, ULONG ordinal)
|
---|
896 | {
|
---|
897 | if(ordexports == NULL) {
|
---|
898 | ordexports = (OrdExport *)malloc(nrOrdExports * sizeof(OrdExport));
|
---|
899 | curordexport = ordexports;
|
---|
900 | }
|
---|
901 | curordexport->virtaddr = realBaseAddress + (virtaddr - oh.ImageBase);
|
---|
902 | curordexport->ordinal = ordinal;
|
---|
903 | curordexport++;
|
---|
904 | }
|
---|
905 | //******************************************************************************
|
---|
906 | /** All initial processing of imports is done here
|
---|
907 | * Should now detect most Borland styled files including the GifCon32.exe and
|
---|
908 | * loader32 from SoftIce. (Stupid Borland!!!)
|
---|
909 | *
|
---|
910 | * knut [Jul 22 1998 2:44am]
|
---|
911 | **/
|
---|
912 | //******************************************************************************
|
---|
913 | BOOL Win32PeLdrImage::processImports(char *win32file)
|
---|
914 | {
|
---|
915 | PIMAGE_IMPORT_DESCRIPTOR pID;
|
---|
916 | IMAGE_SECTION_HEADER shID;
|
---|
917 | IMAGE_SECTION_HEADER shExtra = {0};
|
---|
918 | PIMAGE_OPTIONAL_HEADER pOH;
|
---|
919 | int i,j;
|
---|
920 | BOOL fBorland = 0;
|
---|
921 | int cModules;
|
---|
922 | char *pszModules;
|
---|
923 | char *pszCurModule;
|
---|
924 | char *pszTmp;
|
---|
925 | ULONG *pulImport;
|
---|
926 | ULONG ulCurFixup;
|
---|
927 | int Size;
|
---|
928 | Win32PeLdrDll *WinDll;
|
---|
929 |
|
---|
930 | /* "algorithm:"
|
---|
931 | * 1) get module names and store them
|
---|
932 | * a) check dwRVAModuleName is within .idata seg - if not find section
|
---|
933 | * 2) iterate thru functions of each module
|
---|
934 | * a) check OriginalFirstThunk is not 0 and that it points to a RVA.
|
---|
935 | * b) if not a) borland-styled PE-file - ARG!!!
|
---|
936 | * check FirstThunk
|
---|
937 | * c) check OriginalFirstThunk/FirstThunk ok RVAs and find right section
|
---|
938 | * d) store ordinal/name import
|
---|
939 | * 3) finished
|
---|
940 | */
|
---|
941 |
|
---|
942 | /* 1) get module names */
|
---|
943 | pID = (PIMAGE_IMPORT_DESCRIPTOR)ImageDirectoryOffset(win32file, IMAGE_DIRECTORY_ENTRY_IMPORT);
|
---|
944 | if (pID == NULL)
|
---|
945 | return TRUE;
|
---|
946 | if (!GetSectionHdrByImageDir(win32file, IMAGE_DIRECTORY_ENTRY_IMPORT, &shID))
|
---|
947 | return TRUE;
|
---|
948 |
|
---|
949 | //calc size of module list
|
---|
950 | i = Size = cModules = 0;
|
---|
951 | while (pID[i].Name != 0)
|
---|
952 | {
|
---|
953 | //test RVA inside ID-Section
|
---|
954 | if (pID[i].Name >= shID.VirtualAddress && pID[i].Name < shID.VirtualAddress + max(shID.Misc.VirtualSize, shID.SizeOfRawData)) {
|
---|
955 | pszTmp = (char*)(pID[i].Name- shID.VirtualAddress + shID.PointerToRawData + (ULONG)win32file);
|
---|
956 | }
|
---|
957 | else {
|
---|
958 | //is the "Extra"-section already found or do we have to find it?
|
---|
959 | if (pID[i].Name < shExtra.VirtualAddress || pID[i].Name >= shExtra.VirtualAddress + max(shExtra.Misc.VirtualSize, shExtra.SizeOfRawData)) {
|
---|
960 | if (!GetSectionHdrByRVA(win32file, &shExtra, pID[i].Name))
|
---|
961 | return FALSE;
|
---|
962 | }
|
---|
963 | pszTmp = (char*)(pID[i].Name- shExtra.VirtualAddress + shExtra.PointerToRawData + (ULONG)win32file);
|
---|
964 | }
|
---|
965 | Size += strlen(pszTmp) + 1;
|
---|
966 | i++;
|
---|
967 | cModules++;
|
---|
968 | }
|
---|
969 |
|
---|
970 | pszModules = (char*)malloc(Size);
|
---|
971 | assert(pszModules != NULL);
|
---|
972 | j = 0;
|
---|
973 | for (i = 0; i < cModules; i++)
|
---|
974 | {
|
---|
975 | //test RVA inside ID-Section
|
---|
976 | if (pID[i].Name >= shID.VirtualAddress && pID[i].Name < shID.VirtualAddress + max(shID.Misc.VirtualSize, shID.SizeOfRawData)) {
|
---|
977 | pszTmp = (char*)(pID[i].Name- shID.VirtualAddress + shID.PointerToRawData + (ULONG)win32file);
|
---|
978 | }
|
---|
979 | else {
|
---|
980 | fBorland = TRUE;
|
---|
981 | //is the "Extra"-section already found or do we have to find it?
|
---|
982 | if (pID[i].Name < shExtra.VirtualAddress || pID[i].Name >= shExtra.VirtualAddress + max(shExtra.Misc.VirtualSize, shExtra.SizeOfRawData))
|
---|
983 | {
|
---|
984 | if (GetSectionHdrByRVA(win32file, &shExtra, pID[i].Name)) {
|
---|
985 | free(pszModules);
|
---|
986 | return FALSE;
|
---|
987 | }
|
---|
988 | }
|
---|
989 | pszTmp = (char*)(pID[i].Name- shExtra.VirtualAddress + shExtra.PointerToRawData + (ULONG)win32file);
|
---|
990 | }
|
---|
991 |
|
---|
992 | strcpy(pszModules+j, pszTmp);
|
---|
993 | j += strlen(pszTmp) + 1;
|
---|
994 | }
|
---|
995 | fout << endl;
|
---|
996 | if (fBorland)
|
---|
997 | fout << "Borland-styled PE-File." << endl;
|
---|
998 | //Store modules
|
---|
999 | fout << cModules << " imported Modules: " << endl;
|
---|
1000 |
|
---|
1001 | /* 2) functions */
|
---|
1002 | pszCurModule = pszModules;
|
---|
1003 | pOH = (PIMAGE_OPTIONAL_HEADER)OPTHEADEROFF(win32file);
|
---|
1004 | for (i = 0; i < cModules; i++)
|
---|
1005 | {
|
---|
1006 | fout << "Module " << pszCurModule << endl;
|
---|
1007 | // a) check that OriginalFirstThunk not is 0 and look for Borland-styled PE
|
---|
1008 | if (i == 0)
|
---|
1009 | {
|
---|
1010 | //heavy borland-style test - assume array of thunks is within that style does not change
|
---|
1011 | if((ULONG)pID[i].u.OriginalFirstThunk == 0 ||
|
---|
1012 | (ULONG)pID[i].u.OriginalFirstThunk < shID.VirtualAddress ||
|
---|
1013 | (ULONG)pID[i].u.OriginalFirstThunk >= shID.VirtualAddress + max(shID.Misc.VirtualSize, shID.SizeOfRawData) ||
|
---|
1014 | (ULONG)pID[i].u.OriginalFirstThunk >= pOH->DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT].VirtualAddress &&
|
---|
1015 | (ULONG)pID[i].u.OriginalFirstThunk < sizeof(*pID)*cModules + pOH->DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT].VirtualAddress)
|
---|
1016 | {
|
---|
1017 | fBorland = TRUE;
|
---|
1018 | }
|
---|
1019 | }
|
---|
1020 | //light borland-style test
|
---|
1021 | if (pID[i].u.OriginalFirstThunk == 0 || fBorland)
|
---|
1022 | pulImport = (ULONG*)pID[i].FirstThunk;
|
---|
1023 | else pulImport = (ULONG*)pID[i].u.OriginalFirstThunk;
|
---|
1024 |
|
---|
1025 | // b) check if RVA ok
|
---|
1026 | if (!(pulImport > 0 && (ULONG)pulImport < pOH->SizeOfImage)) {
|
---|
1027 | fout << "Invalid RVA " << hex((ULONG)pulImport) << endl;
|
---|
1028 | break;
|
---|
1029 | }
|
---|
1030 | // check section
|
---|
1031 | if ((ULONG)pulImport < shExtra.VirtualAddress || (ULONG)pulImport >= shExtra.VirtualAddress + max(shExtra.Misc.VirtualSize, shExtra.SizeOfRawData))
|
---|
1032 | {
|
---|
1033 | if (!GetSectionHdrByRVA(win32file, &shExtra, (ULONG)pulImport))
|
---|
1034 | {
|
---|
1035 | fout << "warning: could not find section for Thunk RVA " << hex((ULONG)pulImport) << endl;
|
---|
1036 | break;
|
---|
1037 | }
|
---|
1038 | }
|
---|
1039 |
|
---|
1040 | //SvL: Load dll if needed
|
---|
1041 | fout << "**********************************************************************" << endl;
|
---|
1042 | fout << "************** Import Module " << pszCurModule << endl;
|
---|
1043 | fout << "**********************************************************************" << endl;
|
---|
1044 | WinDll = (Win32PeLdrDll *)Win32DllBase::findModule(pszCurModule);
|
---|
1045 |
|
---|
1046 | if(WinDll == NULL)
|
---|
1047 | { //not found, so load it
|
---|
1048 | if(isPEImage(pszCurModule) == FALSE)
|
---|
1049 | {//LX image, so let OS/2 do all the work for us
|
---|
1050 | APIRET rc;
|
---|
1051 | char szModuleFailure[CCHMAXPATH] = "";
|
---|
1052 | char szModuleName[CCHMAXPATH];
|
---|
1053 | ULONG hInstanceNewDll;
|
---|
1054 |
|
---|
1055 | strcpy(szModuleName, pszCurModule);
|
---|
1056 | char *dot = strchr(szModuleName, '.');
|
---|
1057 | if(dot) {
|
---|
1058 | *dot = 0;
|
---|
1059 | }
|
---|
1060 | strcat(szModuleName, ".DLL");
|
---|
1061 | rc = DosLoadModule(szModuleFailure, sizeof(szModuleFailure), szModuleName, (HMODULE *)&hInstanceNewDll);
|
---|
1062 | if(rc) {
|
---|
1063 | dprintf(("DosLoadModule returned %X for %s\n", rc, szModuleFailure));
|
---|
1064 | errorState = rc;
|
---|
1065 | return(FALSE);
|
---|
1066 | }
|
---|
1067 | WinDll = (Win32PeLdrDll *)Win32DllBase::findModule(hInstanceNewDll);
|
---|
1068 | if(WinDll == NULL) {//shouldn't happen!
|
---|
1069 | dprintf(("Just loaded the dll, but can't find it anywhere?!!?"));
|
---|
1070 | errorState = ERROR_INTERNAL;
|
---|
1071 | return(FALSE);
|
---|
1072 | }
|
---|
1073 | }
|
---|
1074 | else {
|
---|
1075 | WinDll = new Win32PeLdrDll(pszCurModule, this);
|
---|
1076 |
|
---|
1077 | if(WinDll == NULL) {
|
---|
1078 | fout << "WinDll: Error allocating memory" << endl;
|
---|
1079 | WinMessageBox(HWND_DESKTOP, HWND_DESKTOP, szMemErrorMsg, szErrorTitle, 0, MB_OK | MB_ERROR | MB_MOVEABLE);
|
---|
1080 | errorState = ERROR_INTERNAL;
|
---|
1081 | return(FALSE);
|
---|
1082 | }
|
---|
1083 | fout << "**********************************************************************" << endl;
|
---|
1084 | fout << "********************** Loading Module *********************" << endl;
|
---|
1085 | fout << "**********************************************************************" << endl;
|
---|
1086 | if(WinDll->init(0) == FALSE) {
|
---|
1087 | fout << "Internal WinDll error " << WinDll->getError() << endl;
|
---|
1088 | return(FALSE);
|
---|
1089 | }
|
---|
1090 | if(WinDll->attachProcess() == FALSE) {
|
---|
1091 | fout << "attachProcess failed!" << endl;
|
---|
1092 | errorState = ERROR_INTERNAL;
|
---|
1093 | return(FALSE);
|
---|
1094 | }
|
---|
1095 | WinDll->AddRef();
|
---|
1096 | }
|
---|
1097 | fout << "**********************************************************************" << endl;
|
---|
1098 | fout << "********************** Finished Loading Module *********************" << endl;
|
---|
1099 | fout << "**********************************************************************" << endl;
|
---|
1100 | }
|
---|
1101 | else fout << "Already found " << pszCurModule << endl;
|
---|
1102 |
|
---|
1103 | WinDll->AddRef();
|
---|
1104 |
|
---|
1105 | pulImport = (PULONG)((ULONG)pulImport - shExtra.VirtualAddress + (ULONG)win32file + shExtra.PointerToRawData);
|
---|
1106 | j = 0;
|
---|
1107 | ulCurFixup = (ULONG)pID[i].FirstThunk + pOH->ImageBase;
|
---|
1108 | while (pulImport[j] != 0) {
|
---|
1109 | if (pulImport[j] & IMAGE_ORDINAL_FLAG) { //ordinal
|
---|
1110 | fout.setf(ios::hex, ios::basefield);
|
---|
1111 | fout << "0x" << ulCurFixup << " Imported function " << pszCurModule << "@" << (pulImport[j] & ~IMAGE_ORDINAL_FLAG) << endl;
|
---|
1112 | fout.setf(ios::dec, ios::basefield);
|
---|
1113 | StoreImportByOrd(WinDll, pulImport[j] & ~IMAGE_ORDINAL_FLAG, ulCurFixup);
|
---|
1114 | }
|
---|
1115 | else { //name
|
---|
1116 | //check
|
---|
1117 | if (pulImport[j] < shExtra.VirtualAddress || pulImport[j] >= shExtra.VirtualAddress + max(shExtra.Misc.VirtualSize, shExtra.SizeOfRawData)) {
|
---|
1118 | if (!GetSectionHdrByRVA(win32file, &shExtra, pulImport[j]))
|
---|
1119 | {
|
---|
1120 | fout << "warning: could not find section for Import Name RVA " << hex(pulImport[j]) << endl;
|
---|
1121 | break;
|
---|
1122 | }
|
---|
1123 | }
|
---|
1124 | //KSO - Aug 6 1998 1:15am:this eases comparing...
|
---|
1125 | char *pszFunctionName = (char*)(pulImport[j] + (ULONG)win32file + shExtra.PointerToRawData - shExtra.VirtualAddress + 2);
|
---|
1126 | fout.setf(ios::hex, ios::basefield);
|
---|
1127 | fout << "0x" << ulCurFixup << " Imported function " << pszFunctionName << endl;
|
---|
1128 | fout.setf(ios::dec, ios::basefield);
|
---|
1129 | StoreImportByName(WinDll, pszFunctionName, ulCurFixup);
|
---|
1130 | }
|
---|
1131 | ulCurFixup += sizeof(IMAGE_THUNK_DATA);
|
---|
1132 | j++;
|
---|
1133 | }
|
---|
1134 | fout << "**********************************************************************" << endl;
|
---|
1135 | fout << "************** End Import Module " << pszCurModule << endl;
|
---|
1136 | fout << "**********************************************************************" << endl;
|
---|
1137 |
|
---|
1138 | pszCurModule += strlen(pszCurModule) + 1;
|
---|
1139 | fout << endl;
|
---|
1140 | }//for (i = 0; i < cModules; i++)
|
---|
1141 |
|
---|
1142 | free(pszModules);
|
---|
1143 | return TRUE;
|
---|
1144 | }
|
---|
1145 | //******************************************************************************
|
---|
1146 | //******************************************************************************
|
---|
1147 | ULONG MissingApi()
|
---|
1148 | {
|
---|
1149 | static BOOL fIgnore = FALSE;
|
---|
1150 | int r;
|
---|
1151 |
|
---|
1152 | dprintf(("Missing api called!\n"));
|
---|
1153 | if(fIgnore)
|
---|
1154 | return(0);
|
---|
1155 |
|
---|
1156 | do {
|
---|
1157 | r = WinMessageBox(HWND_DESKTOP, NULLHANDLE, "The application has called a non-existing api\n",
|
---|
1158 | "Internal Error", 0, MB_ABORTRETRYIGNORE | MB_ICONEXCLAMATION | MB_MOVEABLE);
|
---|
1159 | }
|
---|
1160 | while(r == MBID_RETRY); //giggle
|
---|
1161 |
|
---|
1162 | if( r != MBID_IGNORE )
|
---|
1163 | exit(987);
|
---|
1164 |
|
---|
1165 | fIgnore = TRUE;
|
---|
1166 | return(0);
|
---|
1167 | }
|
---|
1168 | /******************************************************************************/
|
---|
1169 | /******************************************************************************/
|
---|
1170 | /*heximal(decimal) KSO Sun 24.05.1998*/
|
---|
1171 | char szHexBuffer[30];
|
---|
1172 |
|
---|
1173 | char *hex(ULONG num)
|
---|
1174 | {
|
---|
1175 | sprintf(szHexBuffer, "0x%+08x (%lu)",num,num);
|
---|
1176 | return szHexBuffer;
|
---|
1177 | }
|
---|
1178 | //******************************************************************************
|
---|
1179 | //******************************************************************************
|
---|