Module com.aoindustries.aoserv.daemon

Package com.aoindustries.aoserv.daemon.posix

Class GroupFile

java.lang.Object

com.aoindustries.aoserv.daemon.posix.GroupFile

public final class GroupFile
extends Object

Manages access to the /etc/group file.

Author:

AO Industries, Inc.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	GroupFile.Entry	Represents one line of the /etc/group file on a POSIX server.

Field Summary

Fields

Modifier and Type	Field	Description
static final Object	groupLock	Locks the group file for updates.

Method Summary

Modifier and Type	Method	Description
static byte[]	buildGroupFile(Map<Group.Name,GroupFile.Entry> groups, int gidMin, int gidMax)	Builds a new version of the group file with necessary adjustments made.
static Map<Group.Name,GroupFile.Entry>	readGroupFile()	Reads the full contents of /etc/group.
static void	writeGroupFile(byte[] newContents, Set<PosixFile> restorecon)	Must hold groupLock.

Methods inherited from class java.lang.Object

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

Field Details

groupLock

public static final Object groupLock

Locks the group file for updates.

Method Details

readGroupFile

public static Map<Group.Name,GroupFile.Entry> readGroupFile()
                                                     throws IOException

Reads the full contents of /etc/group.

Must hold groupLock.

Throws:

IOException

writeGroupFile

public static void writeGroupFile(byte[] newContents,
 Set<PosixFile> restorecon)
                           throws IOException

Must hold groupLock.

Throws:

IOException

buildGroupFile

public static byte[] buildGroupFile(Map<Group.Name,GroupFile.Entry> groups,
 int gidMin,
 int gidMax)
                             throws IOException

Builds a new version of the group file with necessary adjustments made.

Must hold groupLock.

Throws:

IOException