Java Globus API: Class SSLUtil

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org.globus.gsi.gssapi
Class SSLUtil

java.lang.Object
  |
  +--org.globus.gsi.gssapi.SSLUtil

public class SSLUtil
extends Object

A collection of SSL-protocol related functions.

Constructor Summary
`SSLUtil()`

Method Summary
`static boolean`	`isSSLPacket(byte[] header)` Determines if a given header is a SSL packet (has a SSL header)
`static int`	`read(InputStream in, byte[] buf, int off, int len)` Reads some number of bytes from the input stream.
`static void`	`readFully(InputStream in, byte[] buf, int off, int len)` Reads some number of bytes from the input stream.
`static byte[]`	`readSslMessage(InputStream in)` Reads an entire SSL message from the specified input stream.
`static int`	`toInt(byte[] buf, int off)` Converts 4 bytes to an `int` at the specified offset in the given byte array.
`static long`	`toLong(byte[] buf, int off)` Converts 8 bytes to a `long` at the specified offset in the given byte array.
`static short`	`toShort(byte a, byte b)` Converts 2 bytes to a `short`.
`static void`	`writeInt(int v, byte[] buf, int off)` Converts the specified int value into 4 bytes.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SSLUtil

public SSLUtil()

Method Detail

read

public static int read(InputStream in,
                       byte[] buf,
                       int off,
                       int len)
                throws IOException

Reads some number of bytes from the input stream. This function reads maximum data available on the stream.

Parameters:: in - the input stream to read the bytes from.; buf - the buffer into which read the data is read.; off - the start offset in array b at which the data is written.; len - the maximum number of bytes to read.
Throws:: IOException - if I/O error occurs.

readFully

public static void readFully(InputStream in,
                             byte[] buf,
                             int off,
                             int len)
                      throws IOException

Reads some number of bytes from the input stream. This function blocks until all data is read or an I/O error occurs.

Parameters:: in - the input stream to read the bytes from.; buf - the buffer into which read the data is read.; off - the start offset in array b at which the data is written.; len - the maximum number of bytes to read.
Throws:: IOException - if I/O error occurs.

readSslMessage

public static byte[] readSslMessage(InputStream in)
                             throws IOException

Reads an entire SSL message from the specified input stream.

Parameters:: in - the input stream to read the SSL message from.
Returns:: the byte array containing the SSL message
Throws:: IOException - if I/O error occurs.

isSSLPacket

public static final boolean isSSLPacket(byte[] header)

Determines if a given header is a SSL packet (has a SSL header)

Returns:: true if the header is a SSL header. False, otherwise.

toShort

public static short toShort(byte a,
                            byte b)

Converts 2 bytes to a short.

Parameters:: a - byte 1; b - byte 2
Returns:: the short value of the 2 bytes

toInt

public static int toInt(byte[] buf,
                        int off)

Converts 4 bytes to an int at the specified offset in the given byte array.

Parameters:: buf - the byte array containing the 4 bytes to be converted to an int.; off - offset in the byte array
Returns:: the int value of the 4 bytes.

writeInt

public static void writeInt(int v,
                            byte[] buf,
                            int off)

Converts the specified int value into 4 bytes. The bytes are put into the specified byte array at a given offset location.

Parameters:: v - the int value to convert into 4 bytes.; buf - the byte array to put the resulting 4 bytes.; off - offset in the byte array

toLong

public static long toLong(byte[] buf,
                          int off)

Converts 8 bytes to a long at the specified offset in the given byte array.

Parameters:: buf - the byte array containing the 8 bytes to be converted to a long.; off - offset in the byte array
Returns:: the long value of the 8 bytes.