Module com.aoindustries.aoserv.daemon

Package com.aoindustries.aoserv.daemon.posix

Class PasswdFile

java.lang.Object

com.aoindustries.aoserv.daemon.posix.PasswdFile

public final class PasswdFile
extends Object

Manages access to the /etc/passwd file.

Author:

AO Industries, Inc.

Nested Class Summary

Nested Classes

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

Field Summary

Fields

Modifier and Type	Field	Description
static final Object	passwdLock	Locks the passwd file for updates.

Method Summary

Modifier and Type	Method	Description
static byte[]	buildPasswdFile(Map<User.Name,PasswdFile.Entry> expectedEntries, int uidMin, int uidMax)	Builds a new version of the passwd file with necessary adjustments made.
static Map<User.Name,PasswdFile.Entry>	readPasswdFile()	Reads the full contents of /etc/passwd.
static void	writePasswdFile(byte[] newContents, Set<PosixFile> restorecon)	Must hold passwdLock.

Methods inherited from class java.lang.Object

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

Field Details

passwdLock

public static final Object passwdLock

Locks the passwd file for updates.

Method Details

readPasswdFile

public static Map<User.Name,PasswdFile.Entry> readPasswdFile()
                                                      throws IOException

Reads the full contents of /etc/passwd.

Must hold passwdLock.

Throws:

IOException

writePasswdFile

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

Must hold passwdLock.

Throws:

IOException

buildPasswdFile

public static byte[] buildPasswdFile(Map<User.Name,PasswdFile.Entry> expectedEntries,
 int uidMin,
 int uidMax)
                              throws IOException

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

Must hold passwdLock.

Throws:

IOException