diff options
Diffstat (limited to 'core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/PEArchive.java')
| -rw-r--r-- | core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/PEArchive.java | 336 |
1 files changed, 0 insertions, 336 deletions
diff --git a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/PEArchive.java b/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/PEArchive.java deleted file mode 100644 index 4d850956bf2..00000000000 --- a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/PEArchive.java +++ /dev/null @@ -1,336 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2004 QNX Software Systems and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Common Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/cpl-v10.html - * - * Contributors: - * QNX Software Systems - Initial API and implementation - *******************************************************************************/ -package org.eclipse.cdt.utils.coff; - - -import java.io.File; -import java.io.IOException; -import java.io.RandomAccessFile; -import java.util.Vector; - -import org.eclipse.cdt.core.CCorePlugin; - -/** - * The <code>AR</code> class is used for parsing standard ELF archive (ar) files. - * - * Each object within the archive is represented by an ARHeader class. Each of - * of these objects can then be turned into an PE object for performing PE - * class operations. - * @see ARHeader - */ -public class PEArchive { - - protected String filename; - protected RandomAccessFile rfile; - protected long strtbl_pos = -1; - private ARHeader[] headers; - - public void dispose() { - try { - if (rfile != null) { - rfile.close(); - rfile = null; - } - } catch (IOException e) { - } - } - - /** - * Do not leak fds. - */ - protected void finalize() throws Throwable { - try { - dispose(); - } finally { - super.finalize(); - } - } - - /** - * The <code>ARHeader</code> class is used to store the per-object file - * archive headers. It can also create an PE object for inspecting - * the object file data. - */ - public class ARHeader { - - private String object_name; - private String modification_time; - private String uid; - private String gid; - private String mode; - private long size; - private long elf_offset; - - /** - * Remove the padding from the archive header strings. - */ - private String removeBlanks(String str) { - while (str.charAt(str.length() - 1) == ' ') - str = str.substring(0, str.length() - 1); - return str; - } - - /** - * Look up the name stored in the archive's string table based - * on the offset given. - * - * Maintains <code>rfile</code> file location. - * - * @param offset - * Offset into the string table for first character of the name. - * @throws IOException - * <code>offset</code> not in string table bounds. - */ - private String nameFromStringTable(long offset) throws IOException { - StringBuffer name = new StringBuffer(0); - long pos = rfile.getFilePointer(); - - try { - if (strtbl_pos != -1) { - byte temp; - rfile.seek(strtbl_pos + offset); - while ((temp = rfile.readByte()) != '\n') - name.append((char) temp); - } - } finally { - rfile.seek(pos); - } - - return name.toString(); - } - - /** - * Creates a new archive header object. - * - * Assumes that rfile is already at the correct location in the file. - * - * @throws IOException - * There was an error processing the header data from the file. - */ - public ARHeader() throws IOException { - byte[] object_name = new byte[16]; - byte[] modification_time = new byte[12]; - byte[] uid = new byte[6]; - byte[] gid = new byte[6]; - byte[] mode = new byte[8]; - byte[] size = new byte[10]; - byte[] trailer = new byte[2]; - - // - // Read in the archive header data. Fixed sizes. - // - rfile.read(object_name); - rfile.read(modification_time); - rfile.read(uid); - rfile.read(gid); - rfile.read(mode); - rfile.read(size); - rfile.read(trailer); - - // - // Save this location so we can create the PE object later. - // - elf_offset = rfile.getFilePointer(); - - // - // Convert the raw bytes into strings and numbers. - // - this.object_name = removeBlanks(new String(object_name)); - this.modification_time = new String(modification_time); - this.uid = new String(uid); - this.gid = new String(gid); - this.mode = new String(mode); - this.size = Long.parseLong(removeBlanks(new String(size))); - - // - // If the name is of the format "/<number>", get name from the - // string table. - // - if (strtbl_pos != -1 - && this.object_name.length() > 1 - && this.object_name.charAt(0) == '/') { - try { - long offset = Long.parseLong(this.object_name.substring(1)); - this.object_name = nameFromStringTable(offset); - } catch (java.lang.Exception e) { - } - } - - // - // Strip the trailing / from the object name. - // - int len = this.object_name.length(); - if (len > 2 && this.object_name.charAt(len - 1) == '/') { - this.object_name = this.object_name.substring(0, len - 1); - } - - } - - /** Get the name of the object file */ - public String getObjectName() { - return object_name; - } - - /** Get the size of the object file . */ - public long getSize() { - return size; - } - - /** - * Create an new PE object for the object file. - * - * @throws IOException - * Not a valid PE object file. - * @return A new PE object. - * @see PE#PE( String, long ) - */ - public PE getPE() throws IOException { - return new PE(filename, elf_offset); - } - - public PE getPE(boolean filter_on) throws IOException { - return new PE(filename, elf_offset, filter_on); - } - - public byte[] getObjectData() throws IOException { - byte[] temp = new byte[(int) size]; - rfile.seek(elf_offset); - rfile.read(temp); - return temp; - } - } - - public static boolean isARHeader(byte[] ident) { - if (ident == null || ident.length < 7 - || ident[0] != '!' - || ident[1] != '<' - || ident[2] != 'a' - || ident[3] != 'r' - || ident[4] != 'c' - || ident[5] != 'h' - || ident[6] != '>') - return false; - return true; - } - - /** - * Creates a new <code>AR</code> object from the contents of - * the given file. - * - * @param filename The file to process. - * @throws IOException The file is not a valid archive. - */ - public PEArchive(String filename) throws IOException { - this.filename = filename; - rfile = new RandomAccessFile(filename, "r"); //$NON-NLS-1$ - String hdr = rfile.readLine(); - if (hdr == null || hdr.compareTo("!<arch>") != 0) { //$NON-NLS-1$ - rfile.close(); - throw new IOException(CCorePlugin.getResourceString("Util.exception.invalidArchive")); //$NON-NLS-1$ - } - } - - /** Load the headers from the file (if required). */ - private void loadHeaders() throws IOException { - if (headers != null) - return; - - Vector v = new Vector(); - try { - // - // Check for EOF condition - // - while (rfile.getFilePointer() < rfile.length()) { - ARHeader header = new ARHeader(); - String name = header.getObjectName(); - - long pos = rfile.getFilePointer(); - - // - // If the name starts with a / it is specical. - // - if (name.charAt(0) != '/') - v.add(header); - - // - // If the name is "//" then this is the string table section. - // - if (name.compareTo("//") == 0) //$NON-NLS-1$ - strtbl_pos = pos; - - // - // Compute the location of the next header in the archive. - // - pos += header.getSize(); - if ((pos % 2) != 0) - pos++; - - rfile.seek(pos); - } - } catch (IOException e) { - } - headers = (ARHeader[]) v.toArray(new ARHeader[0]); - } - - /** - * Get an array of all the object file headers for this archive. - * - * @throws IOException - * Unable to process the archive file. - * @return An array of headers, one for each object within the archive. - * @see ARHeader - */ - public ARHeader[] getHeaders() throws IOException { - loadHeaders(); - return headers; - } - - private boolean stringInStrings(String str, String[] set) { - for (int i = 0; i < set.length; i++) - if (str.compareTo(set[i]) == 0) - return true; - return false; - } - - public String[] extractFiles(String outdir, String[] names) - throws IOException { - Vector names_used = new Vector(); - String object_name; - int count; - - loadHeaders(); - - count = 0; - for (int i = 0; i < headers.length; i++) { - object_name = headers[i].getObjectName(); - if (names != null && !stringInStrings(object_name, names)) - continue; - - object_name = "" + count + "_" + object_name; //$NON-NLS-1$ //$NON-NLS-2$ - count++; - - byte[] data = headers[i].getObjectData(); - File output = new File(outdir, object_name); - names_used.add(object_name); - - RandomAccessFile rfile = new RandomAccessFile(output, "rw"); //$NON-NLS-1$ - rfile.write(data); - rfile.close(); - } - - return (String[]) names_used.toArray(new String[0]); - } - - public String[] extractFiles(String outdir) throws IOException { - return extractFiles(outdir, null); - } - -} |