11 files changed, 1938 insertions, 19 deletions
diff --git a/modules/pam_unix/.cvsignore b/modules/pam_unix/.cvsignore
deleted file mode 100644
index 01819c28..00000000
--- a/modules/pam_unix/.cvsignore
+++ /dev/null
@@ -1,14 +0,0 @@
-*.la
-*.lo
-*.so
-.deps
-.libs
-Makefile
-Makefile.in
-bigcrypt
-unix_chkpwd
-unix_update
-README
-pam_unix.8
-unix_chkpwd.8
-unix_update.8
diff --git a/modules/pam_unix/CHANGELOG b/modules/pam_unix/CHANGELOG
index 1476b579..509ce0a3 100644
--- a/modules/pam_unix/CHANGELOG
+++ b/modules/pam_unix/CHANGELOG
@@ -1,4 +1,4 @@
-$Id$
+$Id: CHANGELOG,v 1.1.1.1 2000/06/20 22:12:01 agmorgan Exp $
 
 * Mon Aug 16 1999 Jan R�korajski <baggins@pld.org.pl>
 - fixed reentrancy problems
diff --git a/modules/pam_unix/Makefile.in b/modules/pam_unix/Makefile.in
new file mode 100644
index 00000000..44bc6286
--- /dev/null
+++ b/modules/pam_unix/Makefile.in
@@ -0,0 +1,985 @@
+# Makefile.in generated by automake 1.10.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008  Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#
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+#
+
+
+
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+	$(unix_chkpwd_SOURCES) $(unix_update_SOURCES)
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+CLEANFILES = *~
+MAINTAINERCLEANFILES = $(MANS) README
+EXTRA_DIST = README md5.c md5_crypt.c lckpwdf.-c $(MANS) CHANGELOG \
+		tst-pam_unix $(XMLS)
+
+man_MANS = pam_unix.8 unix_chkpwd.8 unix_update.8
+XMLS = README.xml pam_unix.8.xml unix_chkpwd.8.xml unix_update.8.xml
+TESTS = tst-pam_unix
+securelibdir = $(SECUREDIR)
+secureconfdir = $(SCONFIGDIR)
+AM_CFLAGS = -I$(top_srcdir)/libpam/include \
+	-I$(top_srcdir)/libpamc/include \
+	-DCHKPWD_HELPER=\"$(sbindir)/unix_chkpwd\" \
+	-DUPDATE_HELPER=\"$(sbindir)/unix_update\" $(am__append_1)
+pam_unix_la_LDFLAGS = -no-undefined -avoid-version -module \
+	$(am__append_2)
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+	@LIBCRYPT@ @LIBSELINUX@
+
+securelib_LTLIBRARIES = pam_unix.la
+noinst_HEADERS = md5.h support.h yppasswd.h bigcrypt.h passverify.h
+pam_unix_la_SOURCES = bigcrypt.c pam_unix_acct.c \
+	pam_unix_auth.c pam_unix_passwd.c pam_unix_sess.c support.c \
+	passverify.c yppasswd_xdr.c md5_good.c md5_broken.c
+
+bigcrypt_SOURCES = bigcrypt.c bigcrypt_main.c
+bigcrypt_CFLAGS = $(AM_CFLAGS)
+bigcrypt_LDADD = @LIBCRYPT@
+unix_chkpwd_SOURCES = unix_chkpwd.c md5_good.c md5_broken.c bigcrypt.c \
+	passverify.c
+
+unix_chkpwd_CFLAGS = $(AM_CFLAGS) @PIE_CFLAGS@ -DHELPER_COMPILE=\"unix_chkpwd\"
+unix_chkpwd_LDFLAGS = @PIE_LDFLAGS@
+unix_chkpwd_LDADD = @LIBCRYPT@ @LIBSELINUX@ @LIBAUDIT@
+unix_update_SOURCES = unix_update.c md5_good.c md5_broken.c bigcrypt.c \
+	passverify.c
+
+unix_update_CFLAGS = $(AM_CFLAGS) @PIE_CFLAGS@ -DHELPER_COMPILE=\"unix_update\"
+unix_update_LDFLAGS = @PIE_LDFLAGS@
+unix_update_LDADD = @LIBCRYPT@ @LIBSELINUX@
+@ENABLE_REGENERATE_MAN_TRUE@noinst_DATA = README
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .c .lo .o .obj
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+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh \
+		&& exit 0; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --gnu  modules/pam_unix/Makefile'; \
+	cd $(top_srcdir) && \
+	  $(AUTOMAKE) --gnu  modules/pam_unix/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
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+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+install-securelibLTLIBRARIES: $(securelib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	test -z "$(securelibdir)" || $(MKDIR_P) "$(DESTDIR)$(securelibdir)"
+	@list='$(securelib_LTLIBRARIES)'; for p in $$list; do \
+	  if test -f $$p; then \
+	    f=$(am__strip_dir) \
+	    echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(securelibLTLIBRARIES_INSTALL) $(INSTALL_STRIP_FLAG) '$$p' '$(DESTDIR)$(securelibdir)/$$f'"; \
+	    $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(securelibLTLIBRARIES_INSTALL) $(INSTALL_STRIP_FLAG) "$$p" "$(DESTDIR)$(securelibdir)/$$f"; \
+	  else :; fi; \
+	done
+
+uninstall-securelibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(securelib_LTLIBRARIES)'; for p in $$list; do \
+	  p=$(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(securelibdir)/$$p'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(securelibdir)/$$p"; \
+	done
+
+clean-securelibLTLIBRARIES:
+	-test -z "$(securelib_LTLIBRARIES)" || rm -f $(securelib_LTLIBRARIES)
+	@list='$(securelib_LTLIBRARIES)'; for p in $$list; do \
+	  dir="`echo $$p | sed -e 's|/[^/]*$$||'`"; \
+	  test "$$dir" != "$$p" || dir=.; \
+	  echo "rm -f \"$${dir}/so_locations\""; \
+	  rm -f "$${dir}/so_locations"; \
+	done
+pam_unix.la: $(pam_unix_la_OBJECTS) $(pam_unix_la_DEPENDENCIES) 
+	$(pam_unix_la_LINK) -rpath $(securelibdir) $(pam_unix_la_OBJECTS) $(pam_unix_la_LIBADD) $(LIBS)
+
+clean-noinstPROGRAMS:
+	@list='$(noinst_PROGRAMS)'; for p in $$list; do \
+	  f=`echo $$p|sed 's/$(EXEEXT)$$//'`; \
+	  echo " rm -f $$p $$f"; \
+	  rm -f $$p $$f ; \
+	done
+install-sbinPROGRAMS: $(sbin_PROGRAMS)
+	@$(NORMAL_INSTALL)
+	test -z "$(sbindir)" || $(MKDIR_P) "$(DESTDIR)$(sbindir)"
+	@list='$(sbin_PROGRAMS)'; for p in $$list; do \
+	  p1=`echo $$p|sed 's/$(EXEEXT)$$//'`; \
+	  if test -f $$p \
+	     || test -f $$p1 \
+	  ; then \
+	    f=`echo "$$p1" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'`; \
+	   echo " $(INSTALL_PROGRAM_ENV) $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(sbinPROGRAMS_INSTALL) '$$p' '$(DESTDIR)$(sbindir)/$$f'"; \
+	   $(INSTALL_PROGRAM_ENV) $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(sbinPROGRAMS_INSTALL) "$$p" "$(DESTDIR)$(sbindir)/$$f" || exit 1; \
+	  else :; fi; \
+	done
+
+uninstall-sbinPROGRAMS:
+	@$(NORMAL_UNINSTALL)
+	@list='$(sbin_PROGRAMS)'; for p in $$list; do \
+	  f=`echo "$$p" | sed 's,^.*/,,;s/$(EXEEXT)$$//;$(transform);s/$$/$(EXEEXT)/'`; \
+	  echo " rm -f '$(DESTDIR)$(sbindir)/$$f'"; \
+	  rm -f "$(DESTDIR)$(sbindir)/$$f"; \
+	done
+
+clean-sbinPROGRAMS:
+	@list='$(sbin_PROGRAMS)'; for p in $$list; do \
+	  f=`echo $$p|sed 's/$(EXEEXT)$$//'`; \
+	  echo " rm -f $$p $$f"; \
+	  rm -f $$p $$f ; \
+	done
+bigcrypt$(EXEEXT): $(bigcrypt_OBJECTS) $(bigcrypt_DEPENDENCIES) 
+	@rm -f bigcrypt$(EXEEXT)
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+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am install-man \
+	install-man8 install-pdf install-pdf-am install-ps \
+	install-ps-am install-sbinPROGRAMS \
+	install-securelibLTLIBRARIES install-strip installcheck \
+	installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags uninstall uninstall-am uninstall-man uninstall-man8 \
+	uninstall-sbinPROGRAMS uninstall-securelibLTLIBRARIES
+
+@ENABLE_REGENERATE_MAN_TRUE@README: pam_unix.8.xml
+@ENABLE_REGENERATE_MAN_TRUE@-include $(top_srcdir)/Make.xml.rules
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/modules/pam_unix/README b/modules/pam_unix/README
new file mode 100644
index 00000000..2c4caf31
--- /dev/null
+++ b/modules/pam_unix/README
@@ -0,0 +1,170 @@
+pam_unix — Module for traditional password authentication
+
+━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+
+DESCRIPTION
+
+This is the standard Unix authentication module. It uses standard calls from
+the system's libraries to retrieve and set account information as well as
+authentication. Usually this is obtained from the /etc/passwd and the /etc/
+shadow file as well if shadow is enabled.
+
+The account component performs the task of establishing the status of the
+user's account and password based on the following shadow elements: expire,
+last_change, max_change, min_change, warn_change. In the case of the latter, it
+may offer advice to the user on changing their password or, through the
+PAM_AUTHTOKEN_REQD return, delay giving service to the user until they have
+established a new password. The entries listed above are documented in the
+shadow(5) manual page. Should the user's record not contain one or more of
+these entries, the corresponding shadow check is not performed.
+
+The authentication component performs the task of checking the users
+credentials (password). The default action of this module is to not permit the
+user access to a service if their official password is blank.
+
+A helper binary, unix_chkpwd(8), is provided to check the user's password when
+it is stored in a read protected database. This binary is very simple and will
+only check the password of the user invoking it. It is called transparently on
+behalf of the user by the authenticating component of this module. In this way
+it is possible for applications like xlock(1) to work without being
+setuid-root. The module, by default, will temporarily turn off SIGCHLD handling
+for the duration of execution of the helper binary. This is generally the right
+thing to do, as many applications are not prepared to handle this signal from a
+child they didn't know was fork()d. The noreap module argument can be used to
+suppress this temporary shielding and may be needed for use with certain
+applications.
+
+The password component of this module performs the task of updating the user's
+password.
+
+The session component of this module logs when a user logins or leave the
+system.
+
+Remaining arguments, supported by others functions of this module, are silently
+ignored. Other arguments are logged as errors through syslog(3).
+
+OPTIONS
+
+debug
+
+    Turns on debugging via syslog(3).
+
+audit
+
+    A little more extreme than debug.
+
+nullok
+
+    The default action of this module is to not permit the user access to a
+    service if their official password is blank. The nullok argument overrides
+    this default.
+
+try_first_pass
+
+    Before prompting the user for their password, the module first tries the
+    previous stacked module's password in case that satisfies this module as
+    well.
+
+use_first_pass
+
+    The argument use_first_pass forces the module to use a previous stacked
+    modules password and will never prompt the user - if no password is
+    available or the password is not appropriate, the user will be denied
+    access.
+
+nodelay
+
+    This argument can be used to discourage the authentication component from
+    requesting a delay should the authentication as a whole fail. The default
+    action is for the module to request a delay-on-failure of the order of two
+    second.
+
+use_authtok
+
+    When password changing enforce the module to set the new password to the
+    one provided by a previously stacked password module (this is used in the
+    example of the stacking of the pam_cracklib module documented below).
+
+not_set_pass
+
+    This argument is used to inform the module that it is not to pay attention
+    to/make available the old or new passwords from/to other (stacked) password
+    modules.
+
+nis
+
+    NIS RPC is used for setting new passwords.
+
+remember=n
+
+    The last n passwords for each user are saved in /etc/security/opasswd in
+    order to force password change history and keep the user from alternating
+    between the same password too frequently.
+
+shadow
+
+    Try to maintain a shadow based system.
+
+md5
+
+    When a user changes their password next, encrypt it with the MD5 algorithm.
+
+bigcrypt
+
+    When a user changes their password next, encrypt it with the DEC C2
+    algorithm.
+
+sha256
+
+    When a user changes their password next, encrypt it with the SHA256
+    algorithm. If the SHA256 algorithm is not known to the crypt(3) function,
+    fall back to MD5.
+
+sha512
+
+    When a user changes their password next, encrypt it with the SHA512
+    algorithm. If the SHA512 algorithm is not known to the crypt(3) function,
+    fall back to MD5.
+
+blowfish
+
+    When a user changes their password next, encrypt it with the blowfish
+    algorithm. If the blowfish algorithm is not known to the crypt(3) function,
+    fall back to MD5.
+
+rounds=n
+
+    Set the optional number of rounds of the SHA256, SHA512 and blowfish
+    password hashing algorithms to n.
+
+broken_shadow
+
+    Ignore errors reading shadow information for users in the account
+    management module.
+
+minlen=n
+
+    Set a minimum password length of n characters. The max. for DES crypt based
+    passwords are 8 characters.
+
+Invalid arguments are logged with syslog(3).
+
+EXAMPLES
+
+An example usage for /etc/pam.d/login would be:
+
+# Authenticate the user
+auth       required   pam_unix.so
+# Ensure users account and password are still active
+account    required   pam_unix.so
+# Change the users password, but at first check the strength
+# with pam_cracklib(8)
+password   required   pam_cracklib.so retry=3 minlen=6 difok=3
+password   required   pam_unix.so use_authtok nullok md5
+session    required   pam_unix.so
+
+
+AUTHOR
+
+pam_unix was written by various people.
+
diff --git a/modules/pam_unix/md5.c b/modules/pam_unix/md5.c
index d88d6810..7ee9ed00 100644
--- a/modules/pam_unix/md5.c
+++ b/modules/pam_unix/md5.c
@@ -1,5 +1,5 @@
 /*
- * $Id$
+ * $Id: md5.c,v 1.1.1.1 2000/06/20 22:12:03 agmorgan Exp $
  *
  * This code implements the MD5 message-digest algorithm.
  * The algorithm is due to Ron Rivest.  This code was
diff --git a/modules/pam_unix/md5_crypt.c b/modules/pam_unix/md5_crypt.c
index 53972fcc..8b7bc66b 100644
--- a/modules/pam_unix/md5_crypt.c
+++ b/modules/pam_unix/md5_crypt.c
@@ -1,5 +1,5 @@
 /*
- * $Id$
+ * $Id: md5_crypt.c,v 1.2 2001/07/10 20:24:16 vorlon Exp $
  *
  * ----------------------------------------------------------------------------
  * "THE BEER-WARE LICENSE" (Revision 42):
diff --git a/modules/pam_unix/pam_unix.8 b/modules/pam_unix/pam_unix.8
new file mode 100644
index 00000000..164843a6
--- /dev/null
+++ b/modules/pam_unix/pam_unix.8
@@ -0,0 +1,387 @@
+.\"     Title: pam_unix
+.\"    Author: [see the "AUTHOR" section]
+.\" Generator: DocBook XSL Stylesheets v1.74.0 <http://docbook.sf.net/>
+.\"      Date: 10/27/2010
+.\"    Manual: Linux-PAM Manual
+.\"    Source: Linux-PAM Manual
+.\"  Language: English
+.\"
+.TH "PAM_UNIX" "8" "10/27/2010" "Linux-PAM Manual" "Linux\-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * (re)Define some macros
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" toupper - uppercase a string (locale-aware)
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.de toupper
+.tr aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ
+\\$*
+.tr aabbccddeeffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz
+..
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" SH-xref - format a cross-reference to an SH section
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.de SH-xref
+.ie n \{\
+.\}
+.toupper \\$*
+.el \{\
+\\$*
+.\}
+..
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" SH - level-one heading that works better for non-TTY output
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.de1 SH
+.\" put an extra blank line of space above the head in non-TTY output
+.if t \{\
+.sp 1
+.\}
+.sp \\n[PD]u
+.nr an-level 1
+.set-an-margin
+.nr an-prevailing-indent \\n[IN]
+.fi
+.in \\n[an-margin]u
+.ti 0
+.HTML-TAG ".NH \\n[an-level]"
+.it 1 an-trap
+.nr an-no-space-flag 1
+.nr an-break-flag 1
+\." make the size of the head bigger
+.ps +3
+.ft B
+.ne (2v + 1u)
+.ie n \{\
+.\" if n (TTY output), use uppercase
+.toupper \\$*
+.\}
+.el \{\
+.nr an-break-flag 0
+.\" if not n (not TTY), use normal case (not uppercase)
+\\$1
+.in \\n[an-margin]u
+.ti 0
+.\" if not n (not TTY), put a border/line under subheading
+.sp -.6
+\l'\n(.lu'
+.\}
+..
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" SS - level-two heading that works better for non-TTY output
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.de1 SS
+.sp \\n[PD]u
+.nr an-level 1
+.set-an-margin
+.nr an-prevailing-indent \\n[IN]
+.fi
+.in \\n[IN]u
+.ti \\n[SN]u
+.it 1 an-trap
+.nr an-no-space-flag 1
+.nr an-break-flag 1
+.ps \\n[PS-SS]u
+\." make the size of the head bigger
+.ps +2
+.ft B
+.ne (2v + 1u)
+.if \\n[.$] \&\\$*
+..
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" BB/BE - put background/screen (filled box) around block of text
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.de BB
+.if t \{\
+.sp -.5
+.br
+.in +2n
+.ll -2n
+.gcolor red
+.di BX
+.\}
+..
+.de EB
+.if t \{\
+.if "\\$2"adjust-for-leading-newline" \{\
+.sp -1
+.\}
+.br
+.di
+.in
+.ll
+.gcolor
+.nr BW \\n(.lu-\\n(.i
+.nr BH \\n(dn+.5v
+.ne \\n(BHu+.5v
+.ie "\\$2"adjust-for-leading-newline" \{\
+\M[\\$1]\h'1n'\v'+.5v'\D'P \\n(BWu 0 0 \\n(BHu -\\n(BWu 0 0 -\\n(BHu'\M[]
+.\}
+.el \{\
+\M[\\$1]\h'1n'\v'-.5v'\D'P \\n(BWu 0 0 \\n(BHu -\\n(BWu 0 0 -\\n(BHu'\M[]
+.\}
+.in 0
+.sp -.5v
+.nf
+.BX
+.in
+.sp .5v
+.fi
+.\}
+..
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" BM/EM - put colored marker in margin next to block of text
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.de BM
+.if t \{\
+.br
+.ll -2n
+.gcolor red
+.di BX
+.\}
+..
+.de EM
+.if t \{\
+.br
+.di
+.ll
+.gcolor
+.nr BH \\n(dn
+.ne \\n(BHu
+\M[\\$1]\D'P -.75n 0 0 \\n(BHu -(\\n[.i]u - \\n(INu - .75n) 0 0 -\\n(BHu'\M[]
+.in 0
+.nf
+.BX
+.in
+.fi
+.\}
+..
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "Name"
+pam_unix \- Module for traditional password authentication
+.SH "Synopsis"
+.fam C
+.HP \w'\fBpam_unix\&.so\fR\ 'u
+\fBpam_unix\&.so\fR [\&.\&.\&.]
+.fam
+.SH "DESCRIPTION"
+.PP
+This is the standard Unix authentication module\&. It uses standard calls from the system\'s libraries to retrieve and set account information as well as authentication\&. Usually this is obtained from the /etc/passwd and the /etc/shadow file as well if shadow is enabled\&.
+.PP
+The account component performs the task of establishing the status of the user\'s account and password based on the following
+\fIshadow\fR
+elements: expire, last_change, max_change, min_change, warn_change\&. In the case of the latter, it may offer advice to the user on changing their password or, through the
+\fBPAM_AUTHTOKEN_REQD\fR
+return, delay giving service to the user until they have established a new password\&. The entries listed above are documented in the
+\fBshadow\fR(5)
+manual page\&. Should the user\'s record not contain one or more of these entries, the corresponding
+\fIshadow\fR
+check is not performed\&.
+.PP
+The authentication component performs the task of checking the users credentials (password)\&. The default action of this module is to not permit the user access to a service if their official password is blank\&.
+.PP
+A helper binary,
+\fBunix_chkpwd\fR(8), is provided to check the user\'s password when it is stored in a read protected database\&. This binary is very simple and will only check the password of the user invoking it\&. It is called transparently on behalf of the user by the authenticating component of this module\&. In this way it is possible for applications like
+\fBxlock\fR(1)
+to work without being setuid\-root\&. The module, by default, will temporarily turn off SIGCHLD handling for the duration of execution of the helper binary\&. This is generally the right thing to do, as many applications are not prepared to handle this signal from a child they didn\'t know was
+\fBfork()\fRd\&. The
+\fBnoreap\fR
+module argument can be used to suppress this temporary shielding and may be needed for use with certain applications\&.
+.PP
+The password component of this module performs the task of updating the user\'s password\&.
+.PP
+The session component of this module logs when a user logins or leave the system\&.
+.PP
+Remaining arguments, supported by others functions of this module, are silently ignored\&. Other arguments are logged as errors through
+\fBsyslog\fR(3)\&.
+.SH "OPTIONS"
+.PP
+\fBdebug\fR
+.RS 4
+Turns on debugging via
+\fBsyslog\fR(3)\&.
+.RE
+.PP
+\fBaudit\fR
+.RS 4
+A little more extreme than debug\&.
+.RE
+.PP
+\fBnullok\fR
+.RS 4
+The default action of this module is to not permit the user access to a service if their official password is blank\&. The
+\fBnullok\fR
+argument overrides this default\&.
+.RE
+.PP
+\fBtry_first_pass\fR
+.RS 4
+Before prompting the user for their password, the module first tries the previous stacked module\'s password in case that satisfies this module as well\&.
+.RE
+.PP
+\fBuse_first_pass\fR
+.RS 4
+The argument
+\fBuse_first_pass\fR
+forces the module to use a previous stacked modules password and will never prompt the user \- if no password is available or the password is not appropriate, the user will be denied access\&.
+.RE
+.PP
+\fBnodelay\fR
+.RS 4
+This argument can be used to discourage the authentication component from requesting a delay should the authentication as a whole fail\&. The default action is for the module to request a delay\-on\-failure of the order of two second\&.
+.RE
+.PP
+\fBuse_authtok\fR
+.RS 4
+When password changing enforce the module to set the new password to the one provided by a previously stacked
+\fBpassword\fR
+module (this is used in the example of the stacking of the
+\fBpam_cracklib\fR
+module documented below)\&.
+.RE
+.PP
+\fBnot_set_pass\fR
+.RS 4
+This argument is used to inform the module that it is not to pay attention to/make available the old or new passwords from/to other (stacked) password modules\&.
+.RE
+.PP
+\fBnis\fR
+.RS 4
+NIS RPC is used for setting new passwords\&.
+.RE
+.PP
+\fBremember=\fR\fB\fIn\fR\fR
+.RS 4
+The last
+\fIn\fR
+passwords for each user are saved in
+\FC/etc/security/opasswd\F[]
+in order to force password change history and keep the user from alternating between the same password too frequently\&.
+.RE
+.PP
+\fBshadow\fR
+.RS 4
+Try to maintain a shadow based system\&.
+.RE
+.PP
+\fBmd5\fR
+.RS 4
+When a user changes their password next, encrypt it with the MD5 algorithm\&.
+.RE
+.PP
+\fBbigcrypt\fR
+.RS 4
+When a user changes their password next, encrypt it with the DEC C2 algorithm\&.
+.RE
+.PP
+\fBsha256\fR
+.RS 4
+When a user changes their password next, encrypt it with the SHA256 algorithm\&. If the SHA256 algorithm is not known to the
+\fBcrypt\fR(3)
+function, fall back to MD5\&.
+.RE
+.PP
+\fBsha512\fR
+.RS 4
+When a user changes their password next, encrypt it with the SHA512 algorithm\&. If the SHA512 algorithm is not known to the
+\fBcrypt\fR(3)
+function, fall back to MD5\&.
+.RE
+.PP
+\fBblowfish\fR
+.RS 4
+When a user changes their password next, encrypt it with the blowfish algorithm\&. If the blowfish algorithm is not known to the
+\fBcrypt\fR(3)
+function, fall back to MD5\&.
+.RE
+.PP
+\fBrounds=\fR\fB\fIn\fR\fR
+.RS 4
+Set the optional number of rounds of the SHA256, SHA512 and blowfish password hashing algorithms to
+\fIn\fR\&.
+.RE
+.PP
+\fBbroken_shadow\fR
+.RS 4
+Ignore errors reading shadow information for users in the account management module\&.
+.RE
+.PP
+\fBminlen=\fR\fB\fIn\fR\fR
+.RS 4
+Set a minimum password length of
+\fIn\fR
+characters\&. The max\&. for DES crypt based passwords are 8 characters\&.
+.RE
+.PP
+Invalid arguments are logged with
+\fBsyslog\fR(3)\&.
+.SH "MODULE TYPES PROVIDED"
+.PP
+All module types (\fBaccount\fR,
+\fBauth\fR,
+\fBpassword\fR
+and
+\fBsession\fR) are provided\&.
+.SH "RETURN VALUES"
+.PP
+PAM_IGNORE
+.RS 4
+Ignore this module\&.
+.RE
+.SH "EXAMPLES"
+.PP
+An example usage for
+\FC/etc/pam\&.d/login\F[]
+would be:
+.sp
+.if n \{\
+.RS 4
+.\}
+.fam C
+.ps -1
+.nf
+.if t \{\
+.sp -1
+.\}
+.BB lightgray adjust-for-leading-newline
+.sp -1
+
+# Authenticate the user
+auth       required   pam_unix\&.so
+# Ensure users account and password are still active
+account    required   pam_unix\&.so
+# Change the users password, but at first check the strength
+# with pam_cracklib(8)
+password   required   pam_cracklib\&.so retry=3 minlen=6 difok=3
+password   required   pam_unix\&.so use_authtok nullok md5
+session    required   pam_unix\&.so
+      
+.EB lightgray adjust-for-leading-newline
+.if t \{\
+.sp 1
+.\}
+.fi
+.fam
+.ps +1
+.if n \{\
+.RE
+.\}
+.sp
+.SH "SEE ALSO"
+.PP
+
+\fBpam.conf\fR(5),
+\fBpam.d\fR(5),
+\fBpam\fR(8)
+.SH "AUTHOR"
+.PP
+pam_unix was written by various people\&.
diff --git a/modules/pam_unix/pam_unix_sess.c b/modules/pam_unix/pam_unix_sess.c
index 778062e4..2f080805 100644
--- a/modules/pam_unix/pam_unix_sess.c
+++ b/modules/pam_unix/pam_unix_sess.c
@@ -1,5 +1,5 @@
 /*
- * $Id$
+ * $Id: pam_unix_sess.c,v 1.11 2010/08/17 11:15:33 kukuk Exp $
  *
  * Copyright Alexander O. Yuriev, 1996.  All rights reserved.
  * Copyright Jan R�korajski, 1999.  All rights reserved.
diff --git a/modules/pam_unix/support.h b/modules/pam_unix/support.h
index db4cd953..d02c8aee 100644
--- a/modules/pam_unix/support.h
+++ b/modules/pam_unix/support.h
@@ -1,5 +1,5 @@
 /*
- * $Id$
+ * $Id: support.h,v 1.18 2010/08/17 11:15:33 kukuk Exp $
  */
 
 #ifndef _PAM_UNIX_SUPPORT_H
diff --git a/modules/pam_unix/unix_chkpwd.8 b/modules/pam_unix/unix_chkpwd.8
new file mode 100644
index 00000000..72c72b46
--- /dev/null
+++ b/modules/pam_unix/unix_chkpwd.8
@@ -0,0 +1,196 @@
+.\"     Title: unix_chkpwd
+.\"    Author: [see the "AUTHOR" section]
+.\" Generator: DocBook XSL Stylesheets v1.74.0 <http://docbook.sf.net/>
+.\"      Date: 10/27/2010
+.\"    Manual: Linux-PAM Manual
+.\"    Source: Linux-PAM Manual
+.\"  Language: English
+.\"
+.TH "UNIX_CHKPWD" "8" "10/27/2010" "Linux-PAM Manual" "Linux\-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * (re)Define some macros
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" toupper - uppercase a string (locale-aware)
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.de toupper
+.tr aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ
+\\$*
+.tr aabbccddeeffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz
+..
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" SH-xref - format a cross-reference to an SH section
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.de SH-xref
+.ie n \{\
+.\}
+.toupper \\$*
+.el \{\
+\\$*
+.\}
+..
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" SH - level-one heading that works better for non-TTY output
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.de1 SH
+.\" put an extra blank line of space above the head in non-TTY output
+.if t \{\
+.sp 1
+.\}
+.sp \\n[PD]u
+.nr an-level 1
+.set-an-margin
+.nr an-prevailing-indent \\n[IN]
+.fi
+.in \\n[an-margin]u
+.ti 0
+.HTML-TAG ".NH \\n[an-level]"
+.it 1 an-trap
+.nr an-no-space-flag 1
+.nr an-break-flag 1
+\." make the size of the head bigger
+.ps +3
+.ft B
+.ne (2v + 1u)
+.ie n \{\
+.\" if n (TTY output), use uppercase
+.toupper \\$*
+.\}
+.el \{\
+.nr an-break-flag 0
+.\" if not n (not TTY), use normal case (not uppercase)
+\\$1
+.in \\n[an-margin]u
+.ti 0
+.\" if not n (not TTY), put a border/line under subheading
+.sp -.6
+\l'\n(.lu'
+.\}
+..
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" SS - level-two heading that works better for non-TTY output
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.de1 SS
+.sp \\n[PD]u
+.nr an-level 1
+.set-an-margin
+.nr an-prevailing-indent \\n[IN]
+.fi
+.in \\n[IN]u
+.ti \\n[SN]u
+.it 1 an-trap
+.nr an-no-space-flag 1
+.nr an-break-flag 1
+.ps \\n[PS-SS]u
+\." make the size of the head bigger
+.ps +2
+.ft B
+.ne (2v + 1u)
+.if \\n[.$] \&\\$*
+..
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" BB/BE - put background/screen (filled box) around block of text
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.de BB
+.if t \{\
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+.in +2n
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+.gcolor red
+.di BX
+.\}
+..
+.de EB
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+.if "\\$2"adjust-for-leading-newline" \{\
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+.nr BW \\n(.lu-\\n(.i
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+\M[\\$1]\h'1n'\v'+.5v'\D'P \\n(BWu 0 0 \\n(BHu -\\n(BWu 0 0 -\\n(BHu'\M[]
+.\}
+.el \{\
+\M[\\$1]\h'1n'\v'-.5v'\D'P \\n(BWu 0 0 \\n(BHu -\\n(BWu 0 0 -\\n(BHu'\M[]
+.\}
+.in 0
+.sp -.5v
+.nf
+.BX
+.in
+.sp .5v
+.fi
+.\}
+..
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" BM/EM - put colored marker in margin next to block of text
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.de BM
+.if t \{\
+.br
+.ll -2n
+.gcolor red
+.di BX
+.\}
+..
+.de EM
+.if t \{\
+.br
+.di
+.ll
+.gcolor
+.nr BH \\n(dn
+.ne \\n(BHu
+\M[\\$1]\D'P -.75n 0 0 \\n(BHu -(\\n[.i]u - \\n(INu - .75n) 0 0 -\\n(BHu'\M[]
+.in 0
+.nf
+.BX
+.in
+.fi
+.\}
+..
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "Name"
+unix_chkpwd \- Helper binary that verifies the password of the current user
+.SH "Synopsis"
+.fam C
+.HP \w'\fBunix_chkpwd\fR\ 'u
+\fBunix_chkpwd\fR [\&.\&.\&.]
+.fam
+.SH "DESCRIPTION"
+.PP
+
+\fIunix_chkpwd\fR
+is a helper program for the
+\fIpam_unix\fR
+module that verifies the password of the current user\&. It also checks password and account expiration dates in
+\fIshadow\fR\&. It is not intended to be run directly from the command line and logs a security violation if done so\&.
+.PP
+It is typically installed setuid root or setgid shadow\&.
+.PP
+The interface of the helper \- command line options, and input/output data format are internal to the
+\fIpam_unix\fR
+module and it should not be called directly from applications\&.
+.SH "SEE ALSO"
+.PP
+
+\fBpam_unix\fR(8)
+.SH "AUTHOR"
+.PP
+Written by Andrew Morgan and other various people\&.
diff --git a/modules/pam_unix/unix_update.8 b/modules/pam_unix/unix_update.8
new file mode 100644
index 00000000..6bb38b1c
--- /dev/null
+++ b/modules/pam_unix/unix_update.8
@@ -0,0 +1,195 @@
+.\"     Title: unix_update
+.\"    Author: [see the "AUTHOR" section]
+.\" Generator: DocBook XSL Stylesheets v1.74.0 <http://docbook.sf.net/>
+.\"      Date: 10/27/2010
+.\"    Manual: Linux-PAM Manual
+.\"    Source: Linux-PAM Manual
+.\"  Language: English
+.\"
+.TH "UNIX_UPDATE" "8" "10/27/2010" "Linux-PAM Manual" "Linux\-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * (re)Define some macros
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" toupper - uppercase a string (locale-aware)
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.de toupper
+.tr aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ
+\\$*
+.tr aabbccddeeffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz
+..
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" SH-xref - format a cross-reference to an SH section
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.de SH-xref
+.ie n \{\
+.\}
+.toupper \\$*
+.el \{\
+\\$*
+.\}
+..
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" SH - level-one heading that works better for non-TTY output
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.de1 SH
+.\" put an extra blank line of space above the head in non-TTY output
+.if t \{\
+.sp 1
+.\}
+.sp \\n[PD]u
+.nr an-level 1
+.set-an-margin
+.nr an-prevailing-indent \\n[IN]
+.fi
+.in \\n[an-margin]u
+.ti 0
+.HTML-TAG ".NH \\n[an-level]"
+.it 1 an-trap
+.nr an-no-space-flag 1
+.nr an-break-flag 1
+\." make the size of the head bigger
+.ps +3
+.ft B
+.ne (2v + 1u)
+.ie n \{\
+.\" if n (TTY output), use uppercase
+.toupper \\$*
+.\}
+.el \{\
+.nr an-break-flag 0
+.\" if not n (not TTY), use normal case (not uppercase)
+\\$1
+.in \\n[an-margin]u
+.ti 0
+.\" if not n (not TTY), put a border/line under subheading
+.sp -.6
+\l'\n(.lu'
+.\}
+..
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" SS - level-two heading that works better for non-TTY output
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.de1 SS
+.sp \\n[PD]u
+.nr an-level 1
+.set-an-margin
+.nr an-prevailing-indent \\n[IN]
+.fi
+.in \\n[IN]u
+.ti \\n[SN]u
+.it 1 an-trap
+.nr an-no-space-flag 1
+.nr an-break-flag 1
+.ps \\n[PS-SS]u
+\." make the size of the head bigger
+.ps +2
+.ft B
+.ne (2v + 1u)
+.if \\n[.$] \&\\$*
+..
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" BB/BE - put background/screen (filled box) around block of text
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.de BB
+.if t \{\
+.sp -.5
+.br
+.in +2n
+.ll -2n
+.gcolor red
+.di BX
+.\}
+..
+.de EB
+.if t \{\
+.if "\\$2"adjust-for-leading-newline" \{\
+.sp -1
+.\}
+.br
+.di
+.in
+.ll
+.gcolor
+.nr BW \\n(.lu-\\n(.i
+.nr BH \\n(dn+.5v
+.ne \\n(BHu+.5v
+.ie "\\$2"adjust-for-leading-newline" \{\
+\M[\\$1]\h'1n'\v'+.5v'\D'P \\n(BWu 0 0 \\n(BHu -\\n(BWu 0 0 -\\n(BHu'\M[]
+.\}
+.el \{\
+\M[\\$1]\h'1n'\v'-.5v'\D'P \\n(BWu 0 0 \\n(BHu -\\n(BWu 0 0 -\\n(BHu'\M[]
+.\}
+.in 0
+.sp -.5v
+.nf
+.BX
+.in
+.sp .5v
+.fi
+.\}
+..
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" BM/EM - put colored marker in margin next to block of text
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.de BM
+.if t \{\
+.br
+.ll -2n
+.gcolor red
+.di BX
+.\}
+..
+.de EM
+.if t \{\
+.br
+.di
+.ll
+.gcolor
+.nr BH \\n(dn
+.ne \\n(BHu
+\M[\\$1]\D'P -.75n 0 0 \\n(BHu -(\\n[.i]u - \\n(INu - .75n) 0 0 -\\n(BHu'\M[]
+.in 0
+.nf
+.BX
+.in
+.fi
+.\}
+..
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "Name"
+unix_update \- Helper binary that updates the password of a given user
+.SH "Synopsis"
+.fam C
+.HP \w'\fBunix_update\fR\ 'u
+\fBunix_update\fR [\&.\&.\&.]
+.fam
+.SH "DESCRIPTION"
+.PP
+
+\fIunix_update\fR
+is a helper program for the
+\fIpam_unix\fR
+module that updates the password of a given user\&. It is not intended to be run directly from the command line and logs a security violation if done so\&.
+.PP
+The purpose of the helper is to enable tighter confinement of login and password changing services\&. The helper is thus called only when SELinux is enabled and in the enforcing mode on the system\&.
+.PP
+The interface of the helper \- command line options, and input/output data format are internal to the
+\fIpam_unix\fR
+module and it should not be called directly from applications\&.
+.SH "SEE ALSO"
+.PP
+
+\fBpam_unix\fR(8)
+.SH "AUTHOR"
+.PP
+Written by Tomas Mraz and other various people\&.