Class UnixSystem

java.lang.Object
com.sun.security.auth.module.UnixSystem
public class UnixSystem extends Object
This class implementation retrieves and makes available Unix UID/GID/groups information for the current user.
Since:
1.4

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    protected long
    gid
    The current group ID.
    protected long[]
    groups
    The current list of groups.
    protected long
    uid
    The current user ID.
    protected String
    username
    The current username.

  • Constructor Summary

    Constructors
    Constructor
    Description
    UnixSystem()
    Instantiate a UnixSystem and load the native library to access the underlying system information.

  • Method Summary

    Modifier and Type
    Method
    Description
    long
    getGid()
    Get the GID for the current Unix user.
    long[]
    getGroups()
    Get the supplementary groups for the current Unix user.
    long
    getUid()
    Get the UID for the current Unix user.
    String
    getUsername()
    Get the username for the current Unix user.

    Methods declared in class Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    Modifier and Type
    Method
    Description
    protected Object
    clone()
    Creates and returns a copy of this object.
    boolean
    equals(Object obj)
    Indicates whether some other object is "equal to" this one.
    protected void
    finalize()
    Deprecated, for removal: This API element is subject to removal in a future version.
    Finalization is deprecated and subject to removal in a future release.
    final Class<?>
    getClass()
    Returns the runtime class of this Object.
    int
    hashCode()
    Returns a hash code value for this object.
    final void
    notify()
    Wakes up a single thread that is waiting on this object's monitor.
    final void
    notifyAll()
    Wakes up all threads that are waiting on this object's monitor.
    String
    toString()
    Returns a string representation of the object.
    final void
    wait()
    Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
    final void
    wait(long timeoutMillis)
    Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
    final void
    wait(long timeoutMillis, int nanos)
    Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

  • Field Details

    • username

      protected String username
      The current username.

    • uid

      protected long uid
      The current user ID.

    • gid

      protected long gid
      The current group ID.

    • groups

      protected long[] groups
      The current list of groups.

  • Constructor Details

    • UnixSystem

      public UnixSystem()
      Instantiate a UnixSystem and load the native library to access the underlying system information.

  • Method Details

    • getUsername

      public String getUsername()
      Get the username for the current Unix user.
      Returns:
      the username for the current Unix user.

    • getUid

      public long getUid()
      Get the UID for the current Unix user.
      Returns:
      the UID for the current Unix user.

    • getGid

      public long getGid()
      Get the GID for the current Unix user.
      Returns:
      the GID for the current Unix user.

    • getGroups

      public long[] getGroups()
      Get the supplementary groups for the current Unix user.
      Returns:
      the supplementary groups for the current Unix user.