| /* |
| * Copyright 2006 ProductiveMe Inc. |
| * Copyright 2013 JetBrains s.r.o. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.pme.exe; |
| |
| import java.io.IOException; |
| import java.io.DataInput; |
| |
| /** |
| * Date: Mar 31, 2006 |
| * Time: 2:10:01 PM |
| */ |
| public class MsDosHeader extends Bin.Structure { |
| public MsDosHeader() { |
| super("MSDOS Header"); |
| addMember( new Word( "magic" ), "Magic number" ); |
| addMember( new Word( "cblp" ), "Bytes on last page of file" ); |
| addMember( new Word( "cp" ), "Pages in file" ); |
| addMember( new Word( "crlc" ), "Relocations" ); |
| addMember( new Word( "cparhdr" ), "Size of header in paragraphs" ); |
| addMember( new Word( "minalloc" ), "Minimum extra paragraphs needed" ); |
| addMember( new Word( "maxalloc" ), "Maximum extra paragraphs needed" ); |
| addMember( new Word( "ss" ), "Initial (relative) SS value" ); |
| addMember( new Word( "sp" ), "Initial SP value" ); |
| addMember( new Word( "csum" ), "Checksum" ); |
| addMember( new Word( "ip" ), "Initial IP value" ); |
| addMember( new Word( "cs" ), "Initial (relative) CS value" ); |
| addMember( new Word( "lfarlc" ), "File address of relocation table" ); |
| addMember( new Word( "ovno" ), "Overlay number" ); |
| addMember( new ArrayOfBins( "res", Word.class,4 ), "Reserved words" ); |
| addMember( new Word( "oemid" ), "OEM identifier (for e_oeminfo)" ); |
| addMember( new Word( "oeminfo" ), "OEM information; e_oemid specific" ); |
| addMember( new ArrayOfBins( "res2", Word.class, 10 ), "Reserved words" ); |
| addMember( new DWord( "lfanew" ), "File address of new exe header" ); |
| } |
| |
| public void read(DataInput stream) throws IOException { |
| super.read( stream ); |
| long magic = getValue( "magic" ); |
| if (magic != 0x5a4d) { |
| throw new InvalidMsDosHeaderException("First two chars in exe file must be 'MZ'"); |
| } |
| } |
| } |