2011-12-01 01:23:47 +08:00
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/*
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2012-01-10 06:02:47 +08:00
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Copyright (C) 2011-2012 de4dot@gmail.com
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2011-12-01 01:23:47 +08:00
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This file is part of de4dot.
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de4dot is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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de4dot is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with de4dot. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System.Collections.Generic;
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2011-12-09 16:02:06 +08:00
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namespace de4dot.code.PE {
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2011-12-01 01:23:47 +08:00
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class ResourceDirectory : ResourceDirectoryEntry {
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Resources resources;
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int offset;
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List<ResourceData> resourceDataList = new List<ResourceData>();
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List<ResourceDirectory> resourceDirectoryList = new List<ResourceDirectory>();
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public List<ResourceData> Data {
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get { return resourceDataList; }
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}
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public List<ResourceDirectory> Directories {
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get { return resourceDirectoryList; }
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}
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public ResourceDirectory(int id, Resources resources, int offset)
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: base(id) {
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init(resources, offset);
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}
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public ResourceDirectory(string name, Resources resources, int offset)
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: base(name) {
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init(resources, offset);
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}
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void init(Resources resources, int offset) {
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this.resources = resources;
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this.offset = offset;
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initializeEntries();
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}
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public ResourceDirectory getDirectory(int id) {
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return find(resourceDirectoryList, id);
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}
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public ResourceDirectory getDirectory(string name) {
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return find(resourceDirectoryList, name);
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}
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public ResourceData getData(int id) {
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return find(resourceDataList, id);
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}
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public ResourceData getData(string name) {
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return find(resourceDataList, name);
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}
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void initializeEntries() {
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if (offset < 0)
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return;
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if (!resources.isSizeAvailable(offset, 16))
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return;
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if (!resources.seek(offset + 12))
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return;
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int named = resources.readUInt16();
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int ids = resources.readUInt16();
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int total = named + ids;
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if (!resources.isSizeAvailable(total * 8))
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return;
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for (int i = 0, entryOffset = offset + 16; i < total; i++, entryOffset += 8) {
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resources.seek(entryOffset);
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uint nameOrId = resources.readUInt32();
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uint dataOrDirectory = resources.readUInt32();
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string name = null;
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int id = -1;
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if ((nameOrId & 0x80000000) != 0) {
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name = resources.readString((int)(nameOrId & 0x7FFFFFFF));
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if (name == null)
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break;
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}
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else
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id = (int)nameOrId;
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if ((dataOrDirectory & 0x80000000) == 0) {
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if (!resources.seek((int)dataOrDirectory))
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break;
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if (!resources.isSizeAvailable(16))
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break;
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uint dataRva = resources.readUInt32();
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uint dataSize = resources.readUInt32();
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if (name == null)
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resourceDataList.Add(new ResourceData(id, dataRva, dataSize));
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else
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resourceDataList.Add(new ResourceData(name, dataRva, dataSize));
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}
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else {
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int directoryOffset = (int)(dataOrDirectory & 0x7FFFFFFF);
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if (name == null)
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resourceDirectoryList.Add(new ResourceDirectory(id, resources, directoryOffset));
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else
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resourceDirectoryList.Add(new ResourceDirectory(name, resources, directoryOffset));
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}
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}
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}
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public override string ToString() {
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return string.Format("OFS: {0:X8}, NAME: {1}", offset, getName());
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}
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}
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}
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