org.apache.sshd.common.util.buffer.Buffer.wpos()方法的使用及代码示例

x33g5p2x  于2022-01-17 转载在 其他  
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本文整理了Java中org.apache.sshd.common.util.buffer.Buffer.wpos()方法的一些代码示例，展示了Buffer.wpos()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Buffer.wpos()方法的具体详情如下：
包路径：org.apache.sshd.common.util.buffer.Buffer
类名称：Buffer
方法名：wpos

Buffer.wpos介绍

暂无

代码示例

代码示例来源：origin: org.apache.sshd/sshd-core

protected Buffer prepare(Buffer buffer) {
  int wpos = buffer.wpos();
  buffer.wpos(0);
  buffer.putInt(wpos - 4);
  buffer.wpos(wpos);
  return buffer;
}

代码示例来源：origin: org.apache.sshd/sshd-osgi

protected Buffer prepare(Buffer buffer) {
  int wpos = buffer.wpos();
  buffer.wpos(0);
  buffer.putInt(wpos - 4);
  buffer.wpos(wpos);
  return buffer;
}

代码示例来源：origin: org.apache.sshd/sshd-osgi

public void putPublicKey(PublicKey key) {
  int ow = wpos();
  putInt(0);
  int ow1 = wpos();
  putRawPublicKey(key);
  int ow2 = wpos();
  wpos(ow);
  putInt(ow2 - ow1);
  wpos(ow2);
}

代码示例来源：origin: org.apache.sshd/sshd-common

/**
 * Updates a 32-bit "placeholder" location for data length - moves
 * the write position to the specified placeholder position, updates the length
 * value and then moves the write position it back to its original value.
 *
 * @param buffer     The {@link Buffer}
 * @param lenPos     The offset in the buffer where the length placeholder is
 *                   to be update - <B>Note:</B> assumption is that the encoded data starts
 *                   <U>immediately</U> after the placeholder
 * @param dataLength The length to update
 */
public static void updateLengthPlaceholder(Buffer buffer, int lenPos, int dataLength) {
  int curPos = buffer.wpos();
  buffer.wpos(lenPos);
  buffer.putInt(dataLength);
  buffer.wpos(curPos);
}

代码示例来源：origin: org.apache.sshd/sshd-common

public void putPublicKey(PublicKey key) {
  int ow = wpos();
  putInt(0);
  int ow1 = wpos();
  putRawPublicKey(key);
  int ow2 = wpos();
  wpos(ow);
  putInt(ow2 - ow1);
  wpos(ow2);
}

代码示例来源：origin: org.apache.sshd/sshd-core

protected Buffer prepare(Buffer buf) {
  int len = buf.available();
  int rpos = buf.rpos();
  int wpos = buf.wpos();
  buf.rpos(rpos - 4);
  buf.wpos(rpos - 4);
  buf.putInt(len);
  buf.wpos(wpos);
  return buf;
}

代码示例来源：origin: org.apache.sshd/sshd-osgi

protected Buffer prepare(Buffer buf) {
  int len = buf.available();
  int rpos = buf.rpos();
  int wpos = buf.wpos();
  buf.rpos(rpos - 4);
  buf.wpos(rpos - 4);
  buf.putInt(len);
  buf.wpos(wpos);
  return buf;
}

代码示例来源：origin: org.apache.sshd/sshd-common

/**
 * @param parser A {@link BufferPublicKeyParser} to extract the key from the buffer
 * - never {@code null}
 * @return The extracted {@link PublicKey} - may be {@code null} if the parser so decided
 * @throws SshException If failed to extract the key
 * @see #getRawPublicKey(BufferPublicKeyParser)
 */
public PublicKey getPublicKey(BufferPublicKeyParser<? extends PublicKey> parser) throws SshException {
  int ow = wpos();
  int len = getInt();
  wpos(rpos() + len);
  try {
    return getRawPublicKey(parser);
  } finally {
    wpos(ow);
  }
}

代码示例来源：origin: org.apache.sshd/sshd-osgi

@Override
  public String toString() {
    return getClass().getSimpleName()
      + "[rpos=" + rpos()
      + ", wpos=" + wpos()
      + ", size=" + size()
      + "]";
  }
}

代码示例来源：origin: org.apache.sshd/sshd-common

@Override
  public String toString() {
    return "Buffer [rpos=" + rpos() + ", wpos=" + wpos() + ", size=" + size() + "]";
  }
}

代码示例来源：origin: org.apache.sshd/sshd-osgi

@Override
public void compress(Buffer buffer) throws IOException {
  compresser.setInput(buffer.array(), buffer.rpos(), buffer.available());
  buffer.wpos(buffer.rpos());
  for (int len = compresser.deflate(tmpbuf, 0, tmpbuf.length, Deflater.SYNC_FLUSH);
      len > 0;
      len = compresser.deflate(tmpbuf, 0, tmpbuf.length, Deflater.SYNC_FLUSH)) {
    buffer.putRawBytes(tmpbuf, 0, len);
  }
}

代码示例来源：origin: org.apache.sshd/sshd-common

@Override
public void compress(Buffer buffer) throws IOException {
  compresser.setInput(buffer.array(), buffer.rpos(), buffer.available());
  buffer.wpos(buffer.rpos());
  for (int len = compresser.deflate(tmpbuf, 0, tmpbuf.length, Deflater.SYNC_FLUSH);
      len > 0;
      len = compresser.deflate(tmpbuf, 0, tmpbuf.length, Deflater.SYNC_FLUSH)) {
    buffer.putRawBytes(tmpbuf, 0, len);
  }
}

代码示例来源：origin: org.apache.sshd/sshd-osgi

@Override
public Buffer prepareBuffer(byte cmd, Buffer buffer) {
  buffer = validateTargetBuffer(cmd & 0xFF, buffer);
  buffer.rpos(SshConstants.SSH_PACKET_HEADER_LEN);
  buffer.wpos(SshConstants.SSH_PACKET_HEADER_LEN);
  buffer.putByte(cmd);
  return buffer;
}

代码示例来源：origin: org.apache.sshd/sshd-core

@Override
public Buffer prepareBuffer(byte cmd, Buffer buffer) {
  buffer = validateTargetBuffer(cmd & 0xFF, buffer);
  buffer.rpos(SshConstants.SSH_PACKET_HEADER_LEN);
  buffer.wpos(SshConstants.SSH_PACKET_HEADER_LEN);
  buffer.putByte(cmd);
  return buffer;
}

代码示例来源：origin: org.apache.sshd/sshd-sftp

public static <B extends Buffer> B writeACLs(B buffer, int version, Collection<? extends AclEntry> acl) {
  int lenPos = buffer.wpos();
  buffer.putInt(0);   // length placeholder
  buffer = encodeACLs(buffer, version, acl);
  BufferUtils.updateLengthPlaceholder(buffer, lenPos);
  return buffer;
}

代码示例来源：origin: org.apache.sshd/sshd-common

/**
 * @param d   The {@link Digest} to use
 * @param key the public key - ignored if {@code null}
 * @return the fingerprint or {@code null} if no key.
 * <B>Note:</B> if exception encountered then returns the exception's simple class name
 * @see DigestUtils#getFingerPrint(Digest, byte[], int, int)
 */
public static String getFingerPrint(Digest d, PublicKey key) {
  if (key == null) {
    return null;
  }
  try {
    Buffer buffer = new ByteArrayBuffer();
    buffer.putRawPublicKey(key);
    return DigestUtils.getFingerPrint(d, buffer.array(), 0, buffer.wpos());
  } catch (Exception e) {
    return e.getClass().getSimpleName();
  }
}

代码示例来源：origin: org.apache.sshd/sshd-core

protected Buffer insertCharacter(Buffer org, int c) {
  int remaining = org.capacity();
  int readPos = org.rpos();
  // see if can accommodate the character in the original buffer
  if ((remaining > 0) && (readPos > 0)) {
    int writePos = org.wpos();
    org.wpos(readPos - 1);
    org.putByte((byte) c);
    org.wpos(writePos);
    org.rpos(readPos - 1);
    return org;
  } else {
    Buffer buf = new ByteArrayBuffer(org.available() + Byte.SIZE, false);
    buf.putByte((byte) c);
    buf.putBuffer(org);
    return buf;
  }
}

代码示例来源：origin: org.apache.sshd/sshd-common

public static byte[] getRawFingerprint(Digest d, PublicKey key) throws Exception {
  if (key == null) {
    return null;
  }
  Buffer buffer = new ByteArrayBuffer();
  buffer.putRawPublicKey(key);
  return DigestUtils.getRawFingerprint(d, buffer.array(), 0, buffer.wpos());
}

代码示例来源：origin: org.apache.sshd/sshd-osgi

public static byte[] getRawFingerprint(Digest d, PublicKey key) throws Exception {
  if (key == null) {
    return null;
  }
  Buffer buffer = new ByteArrayBuffer();
  buffer.putRawPublicKey(key);
  return DigestUtils.getRawFingerprint(d, buffer.array(), 0, buffer.wpos());
}

代码示例来源：origin: org.apache.sshd/sshd-sftp

protected int appendAclSupportedExtension(Buffer buffer) {
  ServerSession session = getServerSession();
  Collection<Integer> maskValues = resolveAclSupportedCapabilities(session);
  int mask = AclSupportedParser.AclCapabilities.constructAclCapabilities(maskValues);
  if (mask != 0) {
    if (log.isTraceEnabled()) {
      log.trace("appendAclSupportedExtension({}) capabilities={}",
           session, AclSupportedParser.AclCapabilities.decodeAclCapabilities(mask));
    }
    buffer.putString(SftpConstants.EXT_ACL_SUPPORTED);
    // placeholder for length
    int lenPos = buffer.wpos();
    buffer.putInt(0);
    buffer.putInt(mask);
    BufferUtils.updateLengthPlaceholder(buffer, lenPos);
  }
  return mask;
}

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