462 static void ProcessExifDir(unsigned char * DirStart, unsigned char * OffsetBase,  in ProcessExifDir()  argument
488         if (DirEnd+4 > (OffsetBase+ExifLength)){  in ProcessExifDir()
489             if (DirEnd+2 == OffsetBase+ExifLength || DirEnd == OffsetBase+ExifLength){  in ProcessExifDir()
498 …      printf("Map: %05d-%05d: Directory\n",(int)(DirStart-OffsetBase), (int)(DirEnd+4-OffsetBase));  in ProcessExifDir()
541             ValuePtr = OffsetBase+OffsetVal;  in ProcessExifDir()
559             ProcessMakerNote(ValuePtr, ByteCount, OffsetBase, ExifLength);  in ProcessExifDir()
651                     (char *)ValuePtr - (char *)OffsetBase;  in ProcessExifDir()
849                 ImageInfo.ThumbnailSizeOffset = ValuePtr-OffsetBase;  in ProcessExifDir()
859                     SubdirStart = OffsetBase + Get32u(ValuePtr);  in ProcessExifDir()
860                     if (SubdirStart < OffsetBase || SubdirStart > OffsetBase+ExifLength){  in ProcessExifDir()
863                         ProcessExifDir(SubdirStart, OffsetBase, ExifLength, NestingLevel+1);  in ProcessExifDir()
873                     SubdirStart = OffsetBase + Get32u(ValuePtr);  in ProcessExifDir()
874                     if (SubdirStart < OffsetBase || SubdirStart > OffsetBase+ExifLength){  in ProcessExifDir()
877                         ProcessGpsInfo(SubdirStart, ByteCount, OffsetBase, ExifLength);  in ProcessExifDir()
906         if (DIR_ENTRY_ADDR(DirStart, NumDirEntries) + 4 <= OffsetBase+ExifLength){  in ProcessExifDir()
910                 SubdirStart = OffsetBase + Offset;  in ProcessExifDir()
911                 if (SubdirStart > OffsetBase+ExifLength || SubdirStart < OffsetBase){  in ProcessExifDir()
913                         (int)SubdirStart, (int)OffsetBase, ExifLength, Offset);  in ProcessExifDir()
914                     if (SubdirStart > OffsetBase && SubdirStart < OffsetBase+ExifLength+20){  in ProcessExifDir()
923                     if (SubdirStart <= OffsetBase+ExifLength){  in ProcessExifDir()
925                         ProcessExifDir(SubdirStart, OffsetBase, ExifLength, NestingLevel+1);  in ProcessExifDir()