dlls/imagehlp/modify.c

   1 /*
   2  *      IMAGEHLP library
   3  *
   4  *      Copyright 1998  Patrik Stridvall
   5  */
   6
   7 #include "winbase.h"
   8 #include "winerror.h"
   9 #include "windef.h"
  10 #include "debugtools.h"
  11 #include "imagehlp.h"
  12
  13 DEFAULT_DEBUG_CHANNEL(imagehlp);
  14
  15 static WORD CalcCheckSum(DWORD StartValue, LPVOID BaseAddress, DWORD WordCount);
  16
  17
  18 /***********************************************************************
  19  *              BindImage (IMAGEHLP.@)
  20  */
  21 BOOL WINAPI BindImage(
  22   LPSTR ImageName, LPSTR DllPath, LPSTR SymbolPath)
  23 {
  24   return BindImageEx(0, ImageName, DllPath, SymbolPath, NULL);
  25 }
  26
  27 /***********************************************************************
  28  *              BindImageEx (IMAGEHLP.@)
  29  */
  30 BOOL WINAPI BindImageEx(
  31   DWORD Flags, LPSTR ImageName, LPSTR DllPath, LPSTR SymbolPath,
  32   PIMAGEHLP_STATUS_ROUTINE StatusRoutine)
  33 {
  34   FIXME("(%ld, %s, %s, %s, %p): stub\n",
  35     Flags, debugstr_a(ImageName), debugstr_a(DllPath),
  36     debugstr_a(SymbolPath), StatusRoutine
  37   );
  38   SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
  39   return FALSE;
  40 }
  41
  42
  43 /***********************************************************************
  44  *              CheckSum (internal)
  45  */
  46 static WORD CalcCheckSum(
  47   DWORD StartValue, LPVOID BaseAddress, DWORD WordCount)
  48 {
  49    LPWORD Ptr;
  50    DWORD Sum;
  51    DWORD i;
  52
  53    Sum = StartValue;
  54    Ptr = (LPWORD)BaseAddress;
  55    for (i = 0; i < WordCount; i++)
  56      {
  57         Sum += *Ptr;
  58         if (HIWORD(Sum) != 0)
  59           {
  60              Sum = LOWORD(Sum) + HIWORD(Sum);
  61           }
  62         Ptr++;
  63      }
  64
  65    return (WORD)(LOWORD(Sum) + HIWORD(Sum));
  66 }
  67
  68
  69 /***********************************************************************
  70  *              CheckSumMappedFile (IMAGEHLP.@)
  71  */
  72 PIMAGE_NT_HEADERS WINAPI CheckSumMappedFile(
  73   LPVOID BaseAddress, DWORD FileLength,
  74   LPDWORD HeaderSum, LPDWORD CheckSum)
  75 {
  76   PIMAGE_NT_HEADERS Header;
  77   DWORD CalcSum;
  78   DWORD HdrSum;
  79
  80   FIXME("(%p, %ld, %p, %p): stub\n",
  81     BaseAddress, FileLength, HeaderSum, CheckSum
  82   );
  83
  84   CalcSum = (DWORD)CalcCheckSum(0,
  85                                 BaseAddress,
  86                                 (FileLength + 1) / sizeof(WORD));
  87
  88   Header = ImageNtHeader(BaseAddress);
  89   HdrSum = Header->OptionalHeader.CheckSum;
  90
  91   /* Subtract image checksum from calculated checksum. */
  92   /* fix low word of checksum */
  93   if (LOWORD(CalcSum) >= LOWORD(HdrSum))
  94   {
  95     CalcSum -= LOWORD(HdrSum);
  96   }
  97   else
  98   {
  99     CalcSum = ((LOWORD(CalcSum) - LOWORD(HdrSum)) & 0xFFFF) - 1;
 100   }
 101
 102    /* fix high word of checksum */
 103   if (LOWORD(CalcSum) >= HIWORD(HdrSum))
 104   {
 105     CalcSum -= HIWORD(HdrSum);
 106   }
 107   else
 108   {
 109     CalcSum = ((LOWORD(CalcSum) - HIWORD(HdrSum)) & 0xFFFF) - 1;
 110   }
 111
 112   /* add file length */
 113   CalcSum += FileLength;
 114
 115   *CheckSum = CalcSum;
 116   *HeaderSum = Header->OptionalHeader.CheckSum;
 117
 118   return Header;
 119 }
 120
 121 /***********************************************************************
 122  *              MapFileAndCheckSumA (IMAGEHLP.@)
 123  */
 124 DWORD WINAPI MapFileAndCheckSumA(
 125   LPSTR Filename, LPDWORD HeaderSum, LPDWORD CheckSum)
 126 {
 127   HANDLE hFile;
 128   HANDLE hMapping;
 129   LPVOID BaseAddress;
 130   DWORD FileLength;
 131
 132   TRACE("(%s, %p, %p): stub\n",
 133     debugstr_a(Filename), HeaderSum, CheckSum
 134   );
 135
 136   hFile = CreateFileA(Filename,
 137                       GENERIC_READ,
 138                       FILE_SHARE_READ | FILE_SHARE_WRITE,
 139                       NULL,
 140                       OPEN_EXISTING,
 141                       FILE_ATTRIBUTE_NORMAL,
 142                       0);
 143   if (hFile == INVALID_HANDLE_VALUE)
 144   {
 145     return CHECKSUM_OPEN_FAILURE;
 146   }
 147
 148   hMapping = CreateFileMappingW(hFile,
 149                                NULL,
 150                                PAGE_READONLY,
 151                                0,
 152                                0,
 153                                NULL);
 154   if (hMapping == 0)
 155   {
 156     CloseHandle(hFile);
 157     return CHECKSUM_MAP_FAILURE;
 158   }
 159
 160   BaseAddress = MapViewOfFile(hMapping,
 161                               FILE_MAP_READ,
 162                               0,
 163                               0,
 164                               0);
 165   if (hMapping == 0)
 166   {
 167     CloseHandle(hMapping);
 168     CloseHandle(hFile);
 169     return CHECKSUM_MAPVIEW_FAILURE;
 170   }
 171
 172   FileLength = GetFileSize(hFile,
 173                            NULL);
 174
 175   CheckSumMappedFile(BaseAddress,
 176                      FileLength,
 177                      HeaderSum,
 178                      CheckSum);
 179
 180   UnmapViewOfFile(BaseAddress);
 181   CloseHandle(hMapping);
 182   CloseHandle(hFile);
 183
 184   return 0;
 185 }
 186
 187 /***********************************************************************
 188  *              MapFileAndCheckSumW (IMAGEHLP.@)
 189  */
 190 DWORD WINAPI MapFileAndCheckSumW(
 191   LPWSTR Filename, LPDWORD HeaderSum, LPDWORD CheckSum)
 192 {
 193   HANDLE hFile;
 194   HANDLE hMapping;
 195   LPVOID BaseAddress;
 196   DWORD FileLength;
 197
 198   TRACE("(%s, %p, %p): stub\n",
 199     debugstr_w(Filename), HeaderSum, CheckSum
 200   );
 201
 202   hFile = CreateFileW(Filename,
 203                       GENERIC_READ,
 204                       FILE_SHARE_READ | FILE_SHARE_WRITE,
 205                       NULL,
 206                       OPEN_EXISTING,
 207                       FILE_ATTRIBUTE_NORMAL,
 208                       0);
 209   if (hFile == INVALID_HANDLE_VALUE)
 210   {
 211   return CHECKSUM_OPEN_FAILURE;
 212   }
 213
 214   hMapping = CreateFileMappingW(hFile,
 215                                NULL,
 216                                PAGE_READONLY,
 217                                0,
 218                                0,
 219                                NULL);
 220   if (hMapping == 0)
 221   {
 222     CloseHandle(hFile);
 223     return CHECKSUM_MAP_FAILURE;
 224   }
 225
 226   BaseAddress = MapViewOfFile(hMapping,
 227                               FILE_MAP_READ,
 228                               0,
 229                               0,
 230                               0);
 231   if (hMapping == 0)
 232   {
 233     CloseHandle(hMapping);
 234     CloseHandle(hFile);
 235     return CHECKSUM_MAPVIEW_FAILURE;
 236   }
 237
 238   FileLength = GetFileSize(hFile,
 239                            NULL);
 240
 241   CheckSumMappedFile(BaseAddress,
 242                      FileLength,
 243                      HeaderSum,
 244                      CheckSum);
 245
 246   UnmapViewOfFile(BaseAddress);
 247   CloseHandle(hMapping);
 248   CloseHandle(hFile);
 249
 250   return 0;
 251 }
 252
 253 /***********************************************************************
 254  *              ReBaseImage (IMAGEHLP.@)
 255  */
 256 BOOL WINAPI ReBaseImage(
 257   LPSTR CurrentImageName, LPSTR SymbolPath, BOOL fReBase,
 258   BOOL fRebaseSysfileOk, BOOL fGoingDown, ULONG CheckImageSize,
 259   ULONG *OldImageSize, ULONG *OldImageBase, ULONG *NewImageSize,
 260   ULONG *NewImageBase, ULONG TimeStamp)
 261 {
 262   FIXME(
 263     "(%s, %s, %d, %d, %d, %ld, %p, %p, %p, %p, %ld): stub\n",
 264       debugstr_a(CurrentImageName),debugstr_a(SymbolPath), fReBase,
 265       fRebaseSysfileOk, fGoingDown, CheckImageSize, OldImageSize,
 266       OldImageBase, NewImageSize, NewImageBase, TimeStamp
 267   );
 268   SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 269   return FALSE;
 270 }
 271
 272 /***********************************************************************
 273  *              RemovePrivateCvSymbolic (IMAGEHLP.@)
 274  */
 275 BOOL WINAPI RemovePrivateCvSymbolic(
 276   PCHAR DebugData, PCHAR *NewDebugData, ULONG *NewDebugSize)
 277 {
 278   FIXME("(%p, %p, %p): stub\n",
 279     DebugData, NewDebugData, NewDebugSize
 280   );
 281   SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 282   return FALSE;
 283 }
 284
 285 /***********************************************************************
 286  *              RemoveRelocations (IMAGEHLP.@)
 287  */
 288 VOID WINAPI RemoveRelocations(PCHAR ImageName)
 289 {
 290   FIXME("(%p): stub\n", ImageName);
 291   SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 292 }
 293
 294 /***********************************************************************
 295  *              SplitSymbols (IMAGEHLP.@)
 296  */
 297 BOOL WINAPI SplitSymbols(
 298   LPSTR ImageName, LPSTR SymbolsPath,
 299   LPSTR SymbolFilePath, DWORD Flags)
 300 {
 301   FIXME("(%s, %s, %s, %ld): stub\n",
 302     debugstr_a(ImageName), debugstr_a(SymbolsPath),
 303     debugstr_a(SymbolFilePath), Flags
 304   );
 305   SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 306   return FALSE;
 307 }
 308
 309 /***********************************************************************
 310  *              UpdateDebugInfoFile (IMAGEHLP.@)
 311  */
 312 BOOL WINAPI UpdateDebugInfoFile(
 313   LPSTR ImageFileName, LPSTR SymbolPath,
 314   LPSTR DebugFilePath, PIMAGE_NT_HEADERS NtHeaders)
 315 {
 316   FIXME("(%s, %s, %s, %p): stub\n",
 317     debugstr_a(ImageFileName), debugstr_a(SymbolPath),
 318     debugstr_a(DebugFilePath), NtHeaders
 319   );
 320   SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 321   return FALSE;
 322 }
 323
 324 /***********************************************************************
 325  *              UpdateDebugInfoFileEx (IMAGEHLP.@)
 326  */
 327 BOOL WINAPI UpdateDebugInfoFileEx(
 328   LPSTR ImageFileName, LPSTR SymbolPath, LPSTR DebugFilePath,
 329   PIMAGE_NT_HEADERS NtHeaders, DWORD OldChecksum)
 330 {
 331   FIXME("(%s, %s, %s, %p, %ld): stub\n",
 332     debugstr_a(ImageFileName), debugstr_a(SymbolPath),
 333     debugstr_a(DebugFilePath), NtHeaders, OldChecksum
 334   );
 335   SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 336   return FALSE;
 337 }