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-rw-r--r--doc/.gitignore2
-rw-r--r--doc/Makefile.in749
-rw-r--r--doc/adg/Makefile.in601
-rw-r--r--doc/man/Makefile.in726
-rw-r--r--doc/man/PAM.8138
-rw-r--r--doc/man/misc_conv.3127
-rw-r--r--doc/man/pam.3302
-rw-r--r--doc/man/pam.81
-rw-r--r--doc/man/pam.conf.5355
-rw-r--r--doc/man/pam.conf.5.xml50
-rw-r--r--doc/man/pam.d.51
-rw-r--r--doc/man/pam_acct_mgmt.3100
-rw-r--r--doc/man/pam_authenticate.3110
-rw-r--r--doc/man/pam_chauthtok.3109
-rw-r--r--doc/man/pam_close_session.381
-rw-r--r--doc/man/pam_conv.3177
-rw-r--r--doc/man/pam_end.389
-rw-r--r--doc/man/pam_error.390
-rw-r--r--doc/man/pam_fail_delay.3166
-rw-r--r--doc/man/pam_get_authtok.3169
-rw-r--r--doc/man/pam_get_authtok_noverify.31
-rw-r--r--doc/man/pam_get_authtok_verify.31
-rw-r--r--doc/man/pam_get_data.382
-rw-r--r--doc/man/pam_get_item.3196
-rw-r--r--doc/man/pam_get_user.3123
-rw-r--r--doc/man/pam_getenv.360
-rw-r--r--doc/man/pam_getenvlist.366
-rw-r--r--doc/man/pam_info.386
-rw-r--r--doc/man/pam_misc_drop_env.362
-rw-r--r--doc/man/pam_misc_paste_env.357
-rw-r--r--doc/man/pam_misc_setenv.362
-rw-r--r--doc/man/pam_open_session.381
-rw-r--r--doc/man/pam_prompt.381
-rw-r--r--doc/man/pam_putenv.3111
-rw-r--r--doc/man/pam_set_data.3119
-rw-r--r--doc/man/pam_set_item.3193
-rw-r--r--doc/man/pam_setcred.3122
-rw-r--r--doc/man/pam_sm_acct_mgmt.3111
-rw-r--r--doc/man/pam_sm_authenticate.3112
-rw-r--r--doc/man/pam_sm_chauthtok.3143
-rw-r--r--doc/man/pam_sm_close_session.380
-rw-r--r--doc/man/pam_sm_open_session.380
-rw-r--r--doc/man/pam_sm_setcred.3134
-rw-r--r--doc/man/pam_start.3104
-rw-r--r--doc/man/pam_strerror.352
-rw-r--r--doc/man/pam_syslog.377
-rw-r--r--doc/man/pam_verror.31
-rw-r--r--doc/man/pam_vinfo.31
-rw-r--r--doc/man/pam_vprompt.31
-rw-r--r--doc/man/pam_vsyslog.31
-rw-r--r--doc/man/pam_xauth_data.384
-rw-r--r--doc/man/pam_xauth_data.3.xml94
-rw-r--r--doc/mwg/Makefile.in601
-rw-r--r--doc/sag/Makefile.in601
-rw-r--r--doc/specs/.gitignore6
-rw-r--r--doc/specs/Makefile.in743
-rw-r--r--doc/specs/formatter/.gitignore2
-rw-r--r--doc/specs/parse_l.c1778
-rw-r--r--doc/specs/parse_y.c1927
-rw-r--r--doc/specs/parse_y.h103
60 files changed, 12328 insertions, 154 deletions
diff --git a/doc/.gitignore b/doc/.gitignore
deleted file mode 100644
index 7ac74f9d..00000000
--- a/doc/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-pam.sgml
-MODULES-SGML
diff --git a/doc/Makefile.in b/doc/Makefile.in
new file mode 100644
index 00000000..1638dcfd
--- /dev/null
+++ b/doc/Makefile.in
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+@ENABLE_REGENERATE_MAN_TRUE@pam_vprompt.3: pam_prompt.3
+@ENABLE_REGENERATE_MAN_TRUE@pam_vsyslog.3: pam_syslog.3
+@ENABLE_REGENERATE_MAN_TRUE@pam.d.5: pam.conf.5
+@ENABLE_REGENERATE_MAN_TRUE@ test -f $(srcdir)/pam\\.d.5 && mv $(srcdir)/pam\\.d.5 $(srcdir)/pam.d.5 ||:
+
+@ENABLE_REGENERATE_MAN_TRUE@pam_get_item.3: pam_item_types_std.inc.xml pam_item_types_ext.inc.xml
+@ENABLE_REGENERATE_MAN_TRUE@pam_set_data.3: pam_item_types_std.inc.xml pam_item_types_ext.inc.xml
+@ENABLE_REGENERATE_MAN_TRUE@pam.conf.5: pam.conf-desc.xml pam.conf-dir.xml pam.conf-syntax.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/doc/man/PAM.8 b/doc/man/PAM.8
new file mode 100644
index 00000000..09f223ed
--- /dev/null
+++ b/doc/man/PAM.8
@@ -0,0 +1,138 @@
+'\" t
+.\" Title: pam
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2018
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM" "8" "05/18/2018" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+PAM, pam \- Pluggable Authentication Modules for Linux
+.SH "DESCRIPTION"
+.PP
+This manual is intended to offer a quick introduction to
+\fBLinux\-PAM\fR\&. For more information the reader is directed to the
+\fBLinux\-PAM system administrators\*(Aq guide\fR\&.
+.PP
+\fBLinux\-PAM\fR
+is a system of libraries that handle the authentication tasks of applications (services) on the system\&. The library provides a stable general interface (Application Programming Interface \- API) that privilege granting programs (such as
+\fBlogin\fR(1)
+and
+\fBsu\fR(1)) defer to to perform standard authentication tasks\&.
+.PP
+The principal feature of the PAM approach is that the nature of the authentication is dynamically configurable\&. In other words, the system administrator is free to choose how individual service\-providing applications will authenticate users\&. This dynamic configuration is set by the contents of the single
+\fBLinux\-PAM\fR
+configuration file
+/etc/pam\&.conf\&. Alternatively, the configuration can be set by individual configuration files located in the
+/etc/pam\&.d/
+directory\&. The presence of this directory will cause
+\fBLinux\-PAM\fR
+to
+\fIignore\fR/etc/pam\&.conf\&.
+.PP
+Vendor\-supplied PAM configuration files might be installed in the system directory
+/usr/lib/pam\&.d/
+instead of the machine configuration directory
+/etc/pam\&.d/\&. If no machine configuration file is found, the vendor\-supplied file is used\&. All files in
+/etc/pam\&.d/
+override files with the same name in
+/usr/lib/pam\&.d/\&.
+.PP
+From the point of view of the system administrator, for whom this manual is provided, it is not of primary importance to understand the internal behavior of the
+\fBLinux\-PAM\fR
+library\&. The important point to recognize is that the configuration file(s)
+\fIdefine\fR
+the connection between applications
+(\fBservices\fR) and the pluggable authentication modules
+(\fBPAM\fRs) that perform the actual authentication tasks\&.
+.PP
+\fBLinux\-PAM\fR
+separates the tasks of
+\fIauthentication\fR
+into four independent management groups:
+\fBaccount\fR
+management;
+\fBauth\fRentication management;
+\fBpassword\fR
+management; and
+\fBsession\fR
+management\&. (We highlight the abbreviations used for these groups in the configuration file\&.)
+.PP
+Simply put, these groups take care of different aspects of a typical user\*(Aqs request for a restricted service:
+.PP
+\fBaccount\fR
+\- provide account verification types of service: has the user\*(Aqs password expired?; is this user permitted access to the requested service?
+.PP
+\fBauth\fRentication \- authenticate a user and set up user credentials\&. Typically this is via some challenge\-response request that the user must satisfy: if you are who you claim to be please enter your password\&. Not all authentications are of this type, there exist hardware based authentication schemes (such as the use of smart\-cards and biometric devices), with suitable modules, these may be substituted seamlessly for more standard approaches to authentication \- such is the flexibility of
+\fBLinux\-PAM\fR\&.
+.PP
+\fBpassword\fR
+\- this group\*(Aqs responsibility is the task of updating authentication mechanisms\&. Typically, such services are strongly coupled to those of the
+\fBauth\fR
+group\&. Some authentication mechanisms lend themselves well to being updated with such a function\&. Standard UN*X password\-based access is the obvious example: please enter a replacement password\&.
+.PP
+\fBsession\fR
+\- this group of tasks cover things that should be done prior to a service being given and after it is withdrawn\&. Such tasks include the maintenance of audit trails and the mounting of the user\*(Aqs home directory\&. The
+\fBsession\fR
+management group is important as it provides both an opening and closing hook for modules to affect the services available to a user\&.
+.SH "FILES"
+.PP
+/etc/pam\&.conf
+.RS 4
+the configuration file
+.RE
+.PP
+/etc/pam\&.d
+.RS 4
+the
+\fBLinux\-PAM\fR
+configuration directory\&. Generally, if this directory is present, the
+/etc/pam\&.conf
+file is ignored\&.
+.RE
+.PP
+/usr/lib/pam\&.d
+.RS 4
+the
+\fBLinux\-PAM\fR
+vendor configuration directory\&. Files in
+/etc/pam\&.d
+override files with the same name in this directory\&.
+.RE
+.SH "ERRORS"
+.PP
+Typically errors generated by the
+\fBLinux\-PAM\fR
+system of libraries, will be written to
+\fBsyslog\fR(3)\&.
+.SH "CONFORMING TO"
+.PP
+DCE\-RFC 86\&.0, October 1995\&. Contains additional features, but remains backwardly compatible with this RFC\&.
+.SH "SEE ALSO"
+.PP
+\fBpam\fR(3),
+\fBpam_authenticate\fR(3),
+\fBpam_sm_setcred\fR(3),
+\fBpam_strerror\fR(3),
+\fBPAM\fR(8)
diff --git a/doc/man/misc_conv.3 b/doc/man/misc_conv.3
new file mode 100644
index 00000000..6ee2a1c8
--- /dev/null
+++ b/doc/man/misc_conv.3
@@ -0,0 +1,127 @@
+'\" t
+.\" Title: misc_conv
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "MISC_CONV" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+misc_conv \- text based conversation function
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_misc\&.h>
+.fi
+.ft
+.HP \w'int\ misc_conv('u
+.BI "int misc_conv(int\ " "num_msg" ", const\ struct\ pam_message\ **" "msgm" ", struct\ pam_response\ **" "response" ", void\ *" "appdata_ptr" ");"
+.SH "DESCRIPTION"
+.PP
+The
+\fBmisc_conv\fR
+function is part of
+\fBlibpam_misc\fR
+and not of the standard
+\fBlibpam\fR
+library\&. This function will prompt the user with the appropriate comments and obtain the appropriate inputs as directed by authentication modules\&.
+.PP
+In addition to simply slotting into the appropriate
+\fBpam_conv\fR(3), this function provides some time\-out facilities\&. The function exports five variables that can be used by an application programmer to limit the amount of time this conversation function will spend waiting for the user to type something\&. The five variabls are as follows:
+.PP
+\fBtime_t\fR \fIpam_misc_conv_warn_time\fR;
+.RS 4
+This variable contains the
+\fItime\fR
+(as returned by
+\fBtime\fR(2)) that the user should be first warned that the clock is ticking\&. By default it has the value
+0, which indicates that no such warning will be given\&. The application may set its value to sometime in the future, but this should be done prior to passing control to the
+\fILinux\-PAM\fR
+library\&.
+.RE
+.PP
+\fBconst char *\fR\fIpam_misc_conv_warn_line\fR;
+.RS 4
+Used in conjuction with
+\fIpam_misc_conv_warn_time\fR, this variable is a pointer to the string that will be displayed when it becomes time to warn the user that the timeout is approaching\&. Its default value is a translated version of
+\(lq\&.\&.\&.Time is running out\&.\&.\&.\(rq, but this can be changed by the application prior to passing control to
+\fILinux\-PAM\fR\&.
+.RE
+.PP
+\fBtime_t\fR \fIpam_misc_conv_die_time\fR;
+.RS 4
+This variable contains the
+\fItime\fR
+(as returned by
+\fBtime\fR(2)) that the will time out\&. By default it has the value
+0, which indicates that the conversation function will not timeout\&. The application may set its value to sometime in the future, but this should be done prior to passing control to the
+\fILinux\-PAM\fR
+library\&.
+.RE
+.PP
+\fBconst char *\fR\fIpam_misc_conv_die_line\fR;
+.RS 4
+Used in conjuction with
+\fIpam_misc_conv_die_time\fR, this variable is a pointer to the string that will be displayed when the conversation times out\&. Its default value is a translated version of
+\(lq\&.\&.\&.Sorry, your time is up!\(rq, but this can be changed by the application prior to passing control to
+\fILinux\-PAM\fR\&.
+.RE
+.PP
+\fBint\fR \fIpam_misc_conv_died\fR;
+.RS 4
+Following a return from the
+\fILinux\-PAM\fR
+libraray, the value of this variable indicates whether the conversation has timed out\&. A value of
+1
+indicates the time\-out occurred\&.
+.RE
+.PP
+The following two function pointers are available for supporting binary prompts in the conversation function\&. They are optimized for the current incarnation of the
+\fBlibpamc\fR
+library and are subject to change\&.
+.PP
+\fBint\fR \fI(*pam_binary_handler_fn)\fR(\fBvoid *\fR\fIappdata\fR, \fBpamc_bp_t *\fR\fIprompt_p\fR);
+.RS 4
+This function pointer is initialized to
+NULL
+but can be filled with a function that provides machine\-machine (hidden) message exchange\&. It is intended for use with hidden authentication protocols such as RSA or Diffie\-Hellman key exchanges\&. (This is still under development\&.)
+.RE
+.PP
+\fBint\fR \fI(*pam_binary_handler_free)\fR(\fBvoid *\fR\fIappdata\fR, \fBpamc_bp_t *\fR\fIdelete_me\fR);
+.RS 4
+This function pointer is initialized to
+\fBPAM_BP_RENEW(delete_me, 0, 0)\fR, but can be redefined as desired by the application\&.
+.RE
+.SH "SEE ALSO"
+.PP
+\fBpam_conv\fR(3),
+\fBpam\fR(8)
+.SH "STANDARDS"
+.PP
+The
+\fBmisc_conv\fR
+function is part of the
+\fBlibpam_misc\fR
+Library and not defined in any standard\&.
diff --git a/doc/man/pam.3 b/doc/man/pam.3
new file mode 100644
index 00000000..6b579e38
--- /dev/null
+++ b/doc/man/pam.3
@@ -0,0 +1,302 @@
+'\" t
+.\" Title: pam
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam \- Pluggable Authentication Modules Library
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_appl\&.h>
+.fi
+.ft
+.sp
+.ft B
+.nf
+#include <security/pam_modules\&.h>
+.fi
+.ft
+.sp
+.ft B
+.nf
+#include <security/pam_ext\&.h>
+.fi
+.ft
+.SH "DESCRIPTION"
+.PP
+\fBPAM\fR
+is a system of libraries that handle the authentication tasks of applications (services) on the system\&. The library provides a stable general interface (Application Programming Interface \- API) that privilege granting programs (such as
+\fBlogin\fR(1)
+and
+\fBsu\fR(1)) defer to to perform standard authentication tasks\&.
+.SS "Initialization and Cleanup"
+.PP
+The
+\fBpam_start\fR(3)
+function creates the PAM context and initiates the PAM transaction\&. It is the first of the PAM functions that needs to be called by an application\&. The transaction state is contained entirely within the structure identified by this handle, so it is possible to have multiple transactions in parallel\&. But it is not possible to use the same handle for different transactions, a new one is needed for every new context\&.
+.PP
+The
+\fBpam_end\fR(3)
+function terminates the PAM transaction and is the last function an application should call in the PAM context\&. Upon return the handle pamh is no longer valid and all memory associated with it will be invalid\&. It can be called at any time to terminate a PAM transaction\&.
+.SS "Authentication"
+.PP
+The
+\fBpam_authenticate\fR(3)
+function is used to authenticate the user\&. The user is required to provide an authentication token depending upon the authentication service, usually this is a password, but could also be a finger print\&.
+.PP
+The
+\fBpam_setcred\fR(3)
+function manages the user\*(Aqs credentials\&.
+.SS "Account Management"
+.PP
+The
+\fBpam_acct_mgmt\fR(3)
+function is used to determine if the user\*(Aqs account is valid\&. It checks for authentication token and account expiration and verifies access restrictions\&. It is typically called after the user has been authenticated\&.
+.SS "Password Management"
+.PP
+The
+\fBpam_chauthtok\fR(3)
+function is used to change the authentication token for a given user on request or because the token has expired\&.
+.SS "Session Management"
+.PP
+The
+\fBpam_open_session\fR(3)
+function sets up a user session for a previously successful authenticated user\&. The session should later be terminated with a call to
+\fBpam_close_session\fR(3)\&.
+.SS "Conversation"
+.PP
+The PAM library uses an application\-defined callback to allow a direct communication between a loaded module and the application\&. This callback is specified by the
+\fIstruct pam_conv\fR
+passed to
+\fBpam_start\fR(3)
+at the start of the transaction\&. See
+\fBpam_conv\fR(3)
+for details\&.
+.SS "Data Objects"
+.PP
+The
+\fBpam_set_item\fR(3)
+and
+\fBpam_get_item\fR(3)
+functions allows applications and PAM service modules to set and retrieve PAM informations\&.
+.PP
+The
+\fBpam_get_user\fR(3)
+function is the preferred method to obtain the username\&.
+.PP
+The
+\fBpam_set_data\fR(3)
+and
+\fBpam_get_data\fR(3)
+functions allows PAM service modules to set and retrieve free\-form data from one invocation to another\&.
+.SS "Environment and Error Management"
+.PP
+The
+\fBpam_putenv\fR(3),
+\fBpam_getenv\fR(3)
+and
+\fBpam_getenvlist\fR(3)
+functions are for maintaining a set of private environment variables\&.
+.PP
+The
+\fBpam_strerror\fR(3)
+function returns a pointer to a string describing the given PAM error code\&.
+.SH "RETURN VALUES"
+.PP
+The following return codes are known by PAM:
+.PP
+PAM_ABORT
+.RS 4
+Critical error, immediate abort\&.
+.RE
+.PP
+PAM_ACCT_EXPIRED
+.RS 4
+User account has expired\&.
+.RE
+.PP
+PAM_AUTHINFO_UNAVAIL
+.RS 4
+Authentication service cannot retrieve authentication info\&.
+.RE
+.PP
+PAM_AUTHTOK_DISABLE_AGING
+.RS 4
+Authentication token aging disabled\&.
+.RE
+.PP
+PAM_AUTHTOK_ERR
+.RS 4
+Authentication token manipulation error\&.
+.RE
+.PP
+PAM_AUTHTOK_EXPIRED
+.RS 4
+Authentication token expired\&.
+.RE
+.PP
+PAM_AUTHTOK_LOCK_BUSY
+.RS 4
+Authentication token lock busy\&.
+.RE
+.PP
+PAM_AUTHTOK_RECOVERY_ERR
+.RS 4
+Authentication information cannot be recovered\&.
+.RE
+.PP
+PAM_AUTH_ERR
+.RS 4
+Authentication failure\&.
+.RE
+.PP
+PAM_BUF_ERR
+.RS 4
+Memory buffer error\&.
+.RE
+.PP
+PAM_CONV_ERR
+.RS 4
+Conversation failure\&.
+.RE
+.PP
+PAM_CRED_ERR
+.RS 4
+Failure setting user credentials\&.
+.RE
+.PP
+PAM_CRED_EXPIRED
+.RS 4
+User credentials expired\&.
+.RE
+.PP
+PAM_CRED_INSUFFICIENT
+.RS 4
+Insufficient credentials to access authentication data\&.
+.RE
+.PP
+PAM_CRED_UNAVAIL
+.RS 4
+Authentication service cannot retrieve user credentials\&.
+.RE
+.PP
+PAM_IGNORE
+.RS 4
+The return value should be ignored by PAM dispatch\&.
+.RE
+.PP
+PAM_MAXTRIES
+.RS 4
+Have exhausted maximum number of retries for service\&.
+.RE
+.PP
+PAM_MODULE_UNKNOWN
+.RS 4
+Module is unknown\&.
+.RE
+.PP
+PAM_NEW_AUTHTOK_REQD
+.RS 4
+Authentication token is no longer valid; new one required\&.
+.RE
+.PP
+PAM_NO_MODULE_DATA
+.RS 4
+No module specific data is present\&.
+.RE
+.PP
+PAM_OPEN_ERR
+.RS 4
+Failed to load module\&.
+.RE
+.PP
+PAM_PERM_DENIED
+.RS 4
+Permission denied\&.
+.RE
+.PP
+PAM_SERVICE_ERR
+.RS 4
+Error in service module\&.
+.RE
+.PP
+PAM_SESSION_ERR
+.RS 4
+Cannot make/remove an entry for the specified session\&.
+.RE
+.PP
+PAM_SUCCESS
+.RS 4
+Success\&.
+.RE
+.PP
+PAM_SYMBOL_ERR
+.RS 4
+Symbol not found\&.
+.RE
+.PP
+PAM_SYSTEM_ERR
+.RS 4
+System error\&.
+.RE
+.PP
+PAM_TRY_AGAIN
+.RS 4
+Failed preliminary check by password service\&.
+.RE
+.PP
+PAM_USER_UNKNOWN
+.RS 4
+User not known to the underlying authentication module\&.
+.RE
+.SH "SEE ALSO"
+.PP
+\fBpam_acct_mgmt\fR(3),
+\fBpam_authenticate\fR(3),
+\fBpam_chauthtok\fR(3),
+\fBpam_close_session\fR(3),
+\fBpam_conv\fR(3),
+\fBpam_end\fR(3),
+\fBpam_get_data\fR(3),
+\fBpam_getenv\fR(3),
+\fBpam_getenvlist\fR(3),
+\fBpam_get_item\fR(3),
+\fBpam_get_user\fR(3),
+\fBpam_open_session\fR(3),
+\fBpam_putenv\fR(3),
+\fBpam_set_data\fR(3),
+\fBpam_set_item\fR(3),
+\fBpam_setcred\fR(3),
+\fBpam_start\fR(3),
+\fBpam_strerror\fR(3)
+.SH "NOTES"
+.PP
+The
+\fIlibpam\fR
+interfaces are only thread\-safe if each thread within the multithreaded application uses its own PAM handle\&.
diff --git a/doc/man/pam.8 b/doc/man/pam.8
new file mode 100644
index 00000000..78b1afa0
--- /dev/null
+++ b/doc/man/pam.8
@@ -0,0 +1 @@
+.so PAM.8
diff --git a/doc/man/pam.conf.5 b/doc/man/pam.conf.5
new file mode 100644
index 00000000..43fc60d0
--- /dev/null
+++ b/doc/man/pam.conf.5
@@ -0,0 +1,355 @@
+'\" t
+.\" Title: pam.conf
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM\&.CONF" "5" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam.conf, pam.d \- PAM configuration files
+.SH "DESCRIPTION"
+.PP
+When a
+\fIPAM\fR
+aware privilege granting application is started, it activates its attachment to the PAM\-API\&. This activation performs a number of tasks, the most important being the reading of the configuration file(s):
+/etc/pam\&.conf\&. Alternatively, this may be the contents of the
+/etc/pam\&.d/
+directory\&. The presence of this directory will cause Linux\-PAM to ignore
+/etc/pam\&.conf\&.
+.PP
+These files list the
+\fIPAM\fRs that will do the authentication tasks required by this service, and the appropriate behavior of the PAM\-API in the event that individual
+\fIPAM\fRs fail\&.
+.PP
+The syntax of the
+/etc/pam\&.conf
+configuration file is as follows\&. The file is made up of a list of rules, each rule is typically placed on a single line, but may be extended with an escaped end of line: `\e<LF>\*(Aq\&. Comments are preceded with `#\*(Aq marks and extend to the next end of line\&.
+.PP
+The format of each rule is a space separated collection of tokens, the first three being case\-insensitive:
+.PP
+\fB service type control module\-path module\-arguments\fR
+.PP
+The syntax of files contained in the
+/etc/pam\&.d/
+directory, are identical except for the absence of any
+\fIservice\fR
+field\&. In this case, the
+\fIservice\fR
+is the name of the file in the
+/etc/pam\&.d/
+directory\&. This filename must be in lower case\&.
+.PP
+An important feature of
+\fIPAM\fR, is that a number of rules may be
+\fIstacked\fR
+to combine the services of a number of PAMs for a given authentication task\&.
+.PP
+The
+\fIservice\fR
+is typically the familiar name of the corresponding application:
+\fIlogin\fR
+and
+\fIsu\fR
+are good examples\&. The
+\fIservice\fR\-name,
+\fIother\fR, is reserved for giving
+\fIdefault\fR
+rules\&. Only lines that mention the current service (or in the absence of such, the
+\fIother\fR
+entries) will be associated with the given service\-application\&.
+.PP
+The
+\fItype\fR
+is the management group that the rule corresponds to\&. It is used to specify which of the management groups the subsequent module is to be associated with\&. Valid entries are:
+.PP
+account
+.RS 4
+this module type performs non\-authentication based account management\&. It is typically used to restrict/permit access to a service based on the time of day, currently available system resources (maximum number of users) or perhaps the location of the applicant user \-\- \*(Aqroot\*(Aq login only on the console\&.
+.RE
+.PP
+auth
+.RS 4
+this module type provides two aspects of authenticating the user\&. Firstly, it establishes that the user is who they claim to be, by instructing the application to prompt the user for a password or other means of identification\&. Secondly, the module can grant group membership or other privileges through its credential granting properties\&.
+.RE
+.PP
+password
+.RS 4
+this module type is required for updating the authentication token associated with the user\&. Typically, there is one module for each \*(Aqchallenge/response\*(Aq based authentication (auth) type\&.
+.RE
+.PP
+session
+.RS 4
+this module type is associated with doing things that need to be done for the user before/after they can be given service\&. Such things include the logging of information concerning the opening/closing of some data exchange with a user, mounting directories, etc\&.
+.RE
+.PP
+If the
+\fItype\fR
+value from the list above is prepended with a
+\fI\-\fR
+character the PAM library will not log to the system log if it is not possible to load the module because it is missing in the system\&. This can be useful especially for modules which are not always installed on the system and are not required for correct authentication and authorization of the login session\&.
+.PP
+The third field,
+\fIcontrol\fR, indicates the behavior of the PAM\-API should the module fail to succeed in its authentication task\&. There are two types of syntax for this control field: the simple one has a single simple keyword; the more complicated one involves a square\-bracketed selection of
+\fIvalue=action\fR
+pairs\&.
+.PP
+For the simple (historical) syntax valid
+\fIcontrol\fR
+values are:
+.PP
+required
+.RS 4
+failure of such a PAM will ultimately lead to the PAM\-API returning failure but only after the remaining
+\fIstacked\fR
+modules (for this
+\fIservice\fR
+and
+\fItype\fR) have been invoked\&.
+.RE
+.PP
+requisite
+.RS 4
+like
+\fIrequired\fR, however, in the case that such a module returns a failure, control is directly returned to the application or to the superior PAM stack\&. The return value is that associated with the first required or requisite module to fail\&. Note, this flag can be used to protect against the possibility of a user getting the opportunity to enter a password over an unsafe medium\&. It is conceivable that such behavior might inform an attacker of valid accounts on a system\&. This possibility should be weighed against the not insignificant concerns of exposing a sensitive password in a hostile environment\&.
+.RE
+.PP
+sufficient
+.RS 4
+if such a module succeeds and no prior
+\fIrequired\fR
+module has failed the PAM framework returns success to the application or to the superior PAM stack immediately without calling any further modules in the stack\&. A failure of a
+\fIsufficient\fR
+module is ignored and processing of the PAM module stack continues unaffected\&.
+.RE
+.PP
+optional
+.RS 4
+the success or failure of this module is only important if it is the only module in the stack associated with this
+\fIservice\fR+\fItype\fR\&.
+.RE
+.PP
+include
+.RS 4
+include all lines of given type from the configuration file specified as an argument to this control\&.
+.RE
+.PP
+substack
+.RS 4
+include all lines of given type from the configuration file specified as an argument to this control\&. This differs from
+\fIinclude\fR
+in that evaluation of the
+\fIdone\fR
+and
+\fIdie\fR
+actions in a substack does not cause skipping the rest of the complete module stack, but only of the substack\&. Jumps in a substack also can not make evaluation jump out of it, and the whole substack is counted as one module when the jump is done in a parent stack\&. The
+\fIreset\fR
+action will reset the state of a module stack to the state it was in as of beginning of the substack evaluation\&.
+.RE
+.PP
+For the more complicated syntax valid
+\fIcontrol\fR
+values have the following form:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+ [value1=action1 value2=action2 \&.\&.\&.]
+
+.fi
+.if n \{\
+.RE
+.\}
+.PP
+Where
+\fIvalueN\fR
+corresponds to the return code from the function invoked in the module for which the line is defined\&. It is selected from one of these:
+\fIsuccess\fR,
+\fIopen_err\fR,
+\fIsymbol_err\fR,
+\fIservice_err\fR,
+\fIsystem_err\fR,
+\fIbuf_err\fR,
+\fIperm_denied\fR,
+\fIauth_err\fR,
+\fIcred_insufficient\fR,
+\fIauthinfo_unavail\fR,
+\fIuser_unknown\fR,
+\fImaxtries\fR,
+\fInew_authtok_reqd\fR,
+\fIacct_expired\fR,
+\fIsession_err\fR,
+\fIcred_unavail\fR,
+\fIcred_expired\fR,
+\fIcred_err\fR,
+\fIno_module_data\fR,
+\fIconv_err\fR,
+\fIauthtok_err\fR,
+\fIauthtok_recover_err\fR,
+\fIauthtok_lock_busy\fR,
+\fIauthtok_disable_aging\fR,
+\fItry_again\fR,
+\fIignore\fR,
+\fIabort\fR,
+\fIauthtok_expired\fR,
+\fImodule_unknown\fR,
+\fIbad_item\fR,
+\fIconv_again\fR,
+\fIincomplete\fR, and
+\fIdefault\fR\&.
+.PP
+The last of these,
+\fIdefault\fR, implies \*(Aqall
+\fIvalueN\fR\*(Aqs not mentioned explicitly\&. Note, the full list of PAM errors is available in
+/usr/include/security/_pam_types\&.h\&. The
+\fIactionN\fR
+can take one of the following forms:
+.PP
+ignore
+.RS 4
+when used with a stack of modules, the module\*(Aqs return status will not contribute to the return code the application obtains\&.
+.RE
+.PP
+bad
+.RS 4
+this action indicates that the return code should be thought of as indicative of the module failing\&. If this module is the first in the stack to fail, its status value will be used for that of the whole stack\&.
+.RE
+.PP
+die
+.RS 4
+equivalent to bad with the side effect of terminating the module stack and PAM immediately returning to the application\&.
+.RE
+.PP
+ok
+.RS 4
+this tells PAM that the administrator thinks this return code should contribute directly to the return code of the full stack of modules\&. In other words, if the former state of the stack would lead to a return of
+\fIPAM_SUCCESS\fR, the module\*(Aqs return code will override this value\&. Note, if the former state of the stack holds some value that is indicative of a modules failure, this \*(Aqok\*(Aq value will not be used to override that value\&.
+.RE
+.PP
+done
+.RS 4
+equivalent to ok with the side effect of terminating the module stack and PAM immediately returning to the application\&.
+.RE
+.PP
+N (an unsigned integer)
+.RS 4
+equivalent to ok with the side effect of jumping over the next N modules in the stack\&. Note that N equal to 0 is not allowed (and it would be identical to ok in such case)\&.
+.RE
+.PP
+reset
+.RS 4
+clear all memory of the state of the module stack and start again with the next stacked module\&.
+.RE
+.PP
+Each of the four keywords: required; requisite; sufficient; and optional, have an equivalent expression in terms of the [\&.\&.\&.] syntax\&. They are as follows:
+.PP
+required
+.RS 4
+[success=ok new_authtok_reqd=ok ignore=ignore default=bad]
+.RE
+.PP
+requisite
+.RS 4
+[success=ok new_authtok_reqd=ok ignore=ignore default=die]
+.RE
+.PP
+sufficient
+.RS 4
+[success=done new_authtok_reqd=done default=ignore]
+.RE
+.PP
+optional
+.RS 4
+[success=ok new_authtok_reqd=ok default=ignore]
+.RE
+.PP
+\fImodule\-path\fR
+is either the full filename of the PAM to be used by the application (it begins with a \*(Aq/\*(Aq), or a relative pathname from the default module location:
+/lib/security/
+or
+/lib64/security/, depending on the architecture\&.
+.PP
+\fImodule\-arguments\fR
+are a space separated list of tokens that can be used to modify the specific behavior of the given PAM\&. Such arguments will be documented for each individual module\&. Note, if you wish to include spaces in an argument, you should surround that argument with square brackets\&.
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+ squid auth required pam_mysql\&.so user=passwd_query passwd=mada \e
+ db=eminence [query=select user_name from internet_service \e
+ where user_name=\*(Aq%u\*(Aq and password=PASSWORD(\*(Aq%p\*(Aq) and \e
+ service=\*(Aqweb_proxy\*(Aq]
+
+.fi
+.if n \{\
+.RE
+.\}
+.PP
+When using this convention, you can include `[\*(Aq characters inside the string, and if you wish to include a `]\*(Aq character inside the string that will survive the argument parsing, you should use `\e]\*(Aq\&. In other words:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+ [\&.\&.[\&.\&.\e]\&.\&.] \-\-> \&.\&.[\&.\&.]\&.\&.
+
+.fi
+.if n \{\
+.RE
+.\}
+.PP
+Any line in (one of) the configuration file(s), that is not formatted correctly, will generally tend (erring on the side of caution) to make the authentication process fail\&. A corresponding error is written to the system log files with a call to
+\fBsyslog\fR(3)\&.
+.PP
+More flexible than the single configuration file is it to configure libpam via the contents of the
+/etc/pam\&.d/
+directory\&. In this case the directory is filled with files each of which has a filename equal to a service\-name (in lower\-case): it is the personal configuration file for the named service\&.
+.PP
+The syntax of each file in /etc/pam\&.d/ is similar to that of the
+/etc/pam\&.conf
+file and is made up of lines of the following form:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+type control module\-path module\-arguments
+
+.fi
+.if n \{\
+.RE
+.\}
+.PP
+The only difference being that the service\-name is not present\&. The service\-name is of course the name of the given configuration file\&. For example,
+/etc/pam\&.d/login
+contains the configuration for the
+\fBlogin\fR
+service\&.
+.SH "SEE ALSO"
+.PP
+\fBpam\fR(3),
+\fBPAM\fR(8),
+\fBpam_start\fR(3)
diff --git a/doc/man/pam.conf.5.xml b/doc/man/pam.conf.5.xml
deleted file mode 100644
index 68f576af..00000000
--- a/doc/man/pam.conf.5.xml
+++ /dev/null
@@ -1,50 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
- "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
-<refentry id='pam.conf'>
-
- <refmeta>
- <refentrytitle>pam.conf</refentrytitle>
- <manvolnum>5</manvolnum>
- <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo>
- </refmeta>
-
- <refnamediv id='pam.conf-name'>
- <refname>pam.conf</refname>
- <refname>pam.d</refname>
- <refpurpose>PAM configuration files</refpurpose>
- </refnamediv>
-
-<!-- body begins here -->
-
- <refsect1 id='pam.conf-description'>
- <title>DESCRIPTION</title>
- <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
- href="pam.conf-desc.xml"
- xpointer='xpointer(//section[@id = "pam.conf-desc"]/*)' />
-
- <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
- href="pam.conf-syntax.xml"
- xpointer='xpointer(//section[@id = "pam.conf-syntax"]/*)' />
-
- <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
- href="pam.conf-dir.xml"
- xpointer='xpointer(//section[@id = "pam.conf-dir"]/*)' />
- </refsect1>
-
- <refsect1 id='pam.conf-see_also'>
- <title>SEE ALSO</title>
- <para>
- <citerefentry>
- <refentrytitle>pam</refentrytitle><manvolnum>3</manvolnum>
- </citerefentry>,
- <citerefentry>
- <refentrytitle>PAM</refentrytitle><manvolnum>8</manvolnum>
- </citerefentry>,
- <citerefentry>
- <refentrytitle>pam_start</refentrytitle><manvolnum>3</manvolnum>
- </citerefentry>
- </para>
-
- </refsect1>
-</refentry>
diff --git a/doc/man/pam.d.5 b/doc/man/pam.d.5
new file mode 100644
index 00000000..91277d6e
--- /dev/null
+++ b/doc/man/pam.d.5
@@ -0,0 +1 @@
+.so pam.conf.5
diff --git a/doc/man/pam_acct_mgmt.3 b/doc/man/pam_acct_mgmt.3
new file mode 100644
index 00000000..af8b238e
--- /dev/null
+++ b/doc/man/pam_acct_mgmt.3
@@ -0,0 +1,100 @@
+'\" t
+.\" Title: pam_acct_mgmt
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_ACCT_MGMT" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_acct_mgmt \- PAM account validation management
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_appl\&.h>
+.fi
+.ft
+.HP \w'int\ pam_acct_mgmt('u
+.BI "int pam_acct_mgmt(pam_handle_t\ *" "pamh" ", int\ " "flags" ");"
+.SH "DESCRIPTION"
+.PP
+The
+\fBpam_acct_mgmt\fR
+function is used to determine if the user\*(Aqs account is valid\&. It checks for authentication token and account expiration and verifies access restrictions\&. It is typically called after the user has been authenticated\&.
+.PP
+The
+\fIpamh\fR
+argument is an authentication handle obtained by a prior call to pam_start()\&. The flags argument is the binary or of zero or more of the following values:
+.PP
+PAM_SILENT
+.RS 4
+Do not emit any messages\&.
+.RE
+.PP
+PAM_DISALLOW_NULL_AUTHTOK
+.RS 4
+The PAM module service should return PAM_NEW_AUTHTOK_REQD if the user has a null authentication token\&.
+.RE
+.SH "RETURN VALUES"
+.PP
+PAM_ACCT_EXPIRED
+.RS 4
+User account has expired\&.
+.RE
+.PP
+PAM_AUTH_ERR
+.RS 4
+Authentication failure\&.
+.RE
+.PP
+PAM_NEW_AUTHTOK_REQD
+.RS 4
+The user account is valid but their authentication token is
+\fIexpired\fR\&. The correct response to this return\-value is to require that the user satisfies the
+\fBpam_chauthtok()\fR
+function before obtaining service\&. It may not be possible for some applications to do this\&. In such cases, the user should be denied access until such time as they can update their password\&.
+.RE
+.PP
+PAM_PERM_DENIED
+.RS 4
+Permission denied\&.
+.RE
+.PP
+PAM_SUCCESS
+.RS 4
+The authentication token was successfully updated\&.
+.RE
+.PP
+PAM_USER_UNKNOWN
+.RS 4
+User unknown to password service\&.
+.RE
+.SH "SEE ALSO"
+.PP
+\fBpam_start\fR(3),
+\fBpam_authenticate\fR(3),
+\fBpam_chauthtok\fR(3),
+\fBpam_strerror\fR(3),
+\fBpam\fR(8)
diff --git a/doc/man/pam_authenticate.3 b/doc/man/pam_authenticate.3
new file mode 100644
index 00000000..10b68660
--- /dev/null
+++ b/doc/man/pam_authenticate.3
@@ -0,0 +1,110 @@
+'\" t
+.\" Title: pam_authenticate
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_AUTHENTICATE" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_authenticate \- account authentication
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_appl\&.h>
+.fi
+.ft
+.HP \w'int\ pam_authenticate('u
+.BI "int pam_authenticate(pam_handle_t\ *" "pamh" ", int\ " "flags" ");"
+.SH "DESCRIPTION"
+.PP
+The
+\fBpam_authenticate\fR
+function is used to authenticate the user\&. The user is required to provide an authentication token depending upon the authentication service, usually this is a password, but could also be a finger print\&.
+.PP
+The PAM service module may request that the user enter their username via the conversation mechanism (see
+\fBpam_start\fR(3)
+and
+\fBpam_conv\fR(3))\&. The name of the authenticated user will be present in the PAM item PAM_USER\&. This item may be recovered with a call to
+\fBpam_get_item\fR(3)\&.
+.PP
+The
+\fIpamh\fR
+argument is an authentication handle obtained by a prior call to pam_start()\&. The flags argument is the binary or of zero or more of the following values:
+.PP
+PAM_SILENT
+.RS 4
+Do not emit any messages\&.
+.RE
+.PP
+PAM_DISALLOW_NULL_AUTHTOK
+.RS 4
+The PAM module service should return PAM_AUTH_ERR if the user does not have a registered authentication token\&.
+.RE
+.SH "RETURN VALUES"
+.PP
+PAM_ABORT
+.RS 4
+The application should exit immediately after calling
+\fBpam_end\fR(3)
+first\&.
+.RE
+.PP
+PAM_AUTH_ERR
+.RS 4
+The user was not authenticated\&.
+.RE
+.PP
+PAM_CRED_INSUFFICIENT
+.RS 4
+For some reason the application does not have sufficient credentials to authenticate the user\&.
+.RE
+.PP
+PAM_AUTHINFO_UNAVAIL
+.RS 4
+The modules were not able to access the authentication information\&. This might be due to a network or hardware failure etc\&.
+.RE
+.PP
+PAM_MAXTRIES
+.RS 4
+One or more of the authentication modules has reached its limit of tries authenticating the user\&. Do not try again\&.
+.RE
+.PP
+PAM_SUCCESS
+.RS 4
+The user was successfully authenticated\&.
+.RE
+.PP
+PAM_USER_UNKNOWN
+.RS 4
+User unknown to authentication service\&.
+.RE
+.SH "SEE ALSO"
+.PP
+\fBpam_start\fR(3),
+\fBpam_setcred\fR(3),
+\fBpam_chauthtok\fR(3),
+\fBpam_strerror\fR(3),
+\fBpam\fR(8)
diff --git a/doc/man/pam_chauthtok.3 b/doc/man/pam_chauthtok.3
new file mode 100644
index 00000000..06b4b056
--- /dev/null
+++ b/doc/man/pam_chauthtok.3
@@ -0,0 +1,109 @@
+'\" t
+.\" Title: pam_chauthtok
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_CHAUTHTOK" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_chauthtok \- updating authentication tokens
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_appl\&.h>
+.fi
+.ft
+.HP \w'int\ pam_chauthtok('u
+.BI "int pam_chauthtok(pam_handle_t\ *" "pamh" ", int\ " "flags" ");"
+.SH "DESCRIPTION"
+.PP
+The
+\fBpam_chauthtok\fR
+function is used to change the authentication token for a given user (as indicated by the state associated with the handle
+\fIpamh\fR)\&.
+.PP
+The
+\fIpamh\fR
+argument is an authentication handle obtained by a prior call to pam_start()\&. The flags argument is the binary or of zero or more of the following values:
+.PP
+PAM_SILENT
+.RS 4
+Do not emit any messages\&.
+.RE
+.PP
+PAM_CHANGE_EXPIRED_AUTHTOK
+.RS 4
+This argument indicates to the modules that the user\*(Aqs authentication token (password) should only be changed if it has expired\&. If this argument is not passed, the application requires that all authentication tokens are to be changed\&.
+.RE
+.SH "RETURN VALUES"
+.PP
+PAM_AUTHTOK_ERR
+.RS 4
+A module was unable to obtain the new authentication token\&.
+.RE
+.PP
+PAM_AUTHTOK_RECOVERY_ERR
+.RS 4
+A module was unable to obtain the old authentication token\&.
+.RE
+.PP
+PAM_AUTHTOK_LOCK_BUSY
+.RS 4
+One or more of the modules was unable to change the authentication token since it is currently locked\&.
+.RE
+.PP
+PAM_AUTHTOK_DISABLE_AGING
+.RS 4
+Authentication token aging has been disabled for at least one of the modules\&.
+.RE
+.PP
+PAM_PERM_DENIED
+.RS 4
+Permission denied\&.
+.RE
+.PP
+PAM_SUCCESS
+.RS 4
+The authentication token was successfully updated\&.
+.RE
+.PP
+PAM_TRY_AGAIN
+.RS 4
+Not all of the modules were in a position to update the authentication token(s)\&. In such a case none of the user\*(Aqs authentication tokens are updated\&.
+.RE
+.PP
+PAM_USER_UNKNOWN
+.RS 4
+User unknown to password service\&.
+.RE
+.SH "SEE ALSO"
+.PP
+\fBpam_start\fR(3),
+\fBpam_authenticate\fR(3),
+\fBpam_setcred\fR(3),
+\fBpam_get_item\fR(3),
+\fBpam_strerror\fR(3),
+\fBpam\fR(8)
diff --git a/doc/man/pam_close_session.3 b/doc/man/pam_close_session.3
new file mode 100644
index 00000000..755c75c3
--- /dev/null
+++ b/doc/man/pam_close_session.3
@@ -0,0 +1,81 @@
+'\" t
+.\" Title: pam_close_session
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_CLOSE_SESSION" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_close_session \- terminate PAM session management
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_appl\&.h>
+.fi
+.ft
+.HP \w'int\ pam_close_session('u
+.BI "int pam_close_session(pam_handle_t\ *" "pamh" ", int\ " "flags" ");"
+.SH "DESCRIPTION"
+.PP
+The
+\fBpam_close_session\fR
+function is used to indicate that an authenticated session has ended\&. The session should have been created with a call to
+\fBpam_open_session\fR(3)\&.
+.PP
+It should be noted that the effective uid,
+\fBgeteuid\fR(2)\&. of the application should be of sufficient privilege to perform such tasks as unmounting the user\*(Aqs home directory for example\&.
+.PP
+The flags argument is the binary or of zero or more of the following values:
+.PP
+PAM_SILENT
+.RS 4
+Do not emit any messages\&.
+.RE
+.SH "RETURN VALUES"
+.PP
+PAM_ABORT
+.RS 4
+General failure\&.
+.RE
+.PP
+PAM_BUF_ERR
+.RS 4
+Memory buffer error\&.
+.RE
+.PP
+PAM_SESSION_ERR
+.RS 4
+Session failure\&.
+.RE
+.PP
+PAM_SUCCESS
+.RS 4
+Session was successful terminated\&.
+.RE
+.SH "SEE ALSO"
+.PP
+\fBpam_open_session\fR(3),
+\fBpam_strerror\fR(3)
diff --git a/doc/man/pam_conv.3 b/doc/man/pam_conv.3
new file mode 100644
index 00000000..568fabda
--- /dev/null
+++ b/doc/man/pam_conv.3
@@ -0,0 +1,177 @@
+'\" t
+.\" Title: pam_conv
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_CONV" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_conv \- PAM conversation function
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_appl\&.h>
+.fi
+.ft
+.sp
+.nf
+struct pam_message {
+ int msg_style;
+ const char *msg;
+};
+
+struct pam_response {
+ char *resp;
+ int resp_retcode;
+};
+
+struct pam_conv {
+ int (*conv)(int num_msg, const struct pam_message **msg,
+ struct pam_response **resp, void *appdata_ptr);
+ void *appdata_ptr;
+};
+
+.fi
+.SH "DESCRIPTION"
+.PP
+The PAM library uses an application\-defined callback to allow a direct communication between a loaded module and the application\&. This callback is specified by the
+\fIstruct pam_conv\fR
+passed to
+\fBpam_start\fR(3)
+at the start of the transaction\&.
+.PP
+When a module calls the referenced conv() function, the argument
+\fIappdata_ptr\fR
+is set to the second element of this structure\&.
+.PP
+The other arguments of a call to conv() concern the information exchanged by module and application\&. That is to say,
+\fInum_msg\fR
+holds the length of the array of pointers,
+\fImsg\fR\&. After a successful return, the pointer
+\fIresp\fR
+points to an array of pam_response structures, holding the application supplied text\&. The
+\fIresp_retcode\fR
+member of this struct is unused and should be set to zero\&. It is the caller\*(Aqs responsibility to release both, this array and the responses themselves, using
+\fBfree\fR(3)\&. Note,
+\fI*resp\fR
+is a
+\fIstruct pam_response\fR
+array and not an array of pointers\&.
+.PP
+The number of responses is always equal to the
+\fInum_msg\fR
+conversation function argument\&. This does require that the response array is
+\fBfree\fR(3)\*(Aqd after every call to the conversation function\&. The index of the responses corresponds directly to the prompt index in the pam_message array\&.
+.PP
+On failure, the conversation function should release any resources it has allocated, and return one of the predefined PAM error codes\&.
+.PP
+Each message can have one of four types, specified by the
+\fImsg_style\fR
+member of
+\fIstruct pam_message\fR:
+.PP
+PAM_PROMPT_ECHO_OFF
+.RS 4
+Obtain a string without echoing any text\&.
+.RE
+.PP
+PAM_PROMPT_ECHO_ON
+.RS 4
+Obtain a string whilst echoing text\&.
+.RE
+.PP
+PAM_ERROR_MSG
+.RS 4
+Display an error message\&.
+.RE
+.PP
+PAM_TEXT_INFO
+.RS 4
+Display some text\&.
+.RE
+.PP
+The point of having an array of messages is that it becomes possible to pass a number of things to the application in a single call from the module\&. It can also be convenient for the application that related things come at once: a windows based application can then present a single form with many messages/prompts on at once\&.
+.PP
+In passing, it is worth noting that there is a descrepency between the way Linux\-PAM handles the const struct pam_message **msg conversation function argument from the way that Solaris\*(Aq PAM (and derivitives, known to include HP/UX, are there others?) does\&. Linux\-PAM interprets the msg argument as entirely equivalent to the following prototype const struct pam_message *msg[] (which, in spirit, is consistent with the commonly used prototypes for argv argument to the familiar main() function: char **argv; and char *argv[])\&. Said another way Linux\-PAM interprets the msg argument as a pointer to an array of num_msg read only \*(Aqstruct pam_message\*(Aq pointers\&. Solaris\*(Aq PAM implementation interprets this argument as a pointer to a pointer to an array of num_msg pam_message structures\&. Fortunately, perhaps, for most module/application developers when num_msg has a value of one these two definitions are entirely equivalent\&. Unfortunately, casually raising this number to two has led to unanticipated compatibility problems\&.
+.PP
+For what its worth the two known module writer work\-arounds for trying to maintain source level compatibility with both PAM implementations are:
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+never call the conversation function with num_msg greater than one\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+set up msg as doubly referenced so both types of conversation function can find the messages\&. That is, make
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+ msg[n] = & (( *msg )[n])
+
+.fi
+.if n \{\
+.RE
+.\}
+.RE
+.SH "RETURN VALUES"
+.PP
+PAM_BUF_ERR
+.RS 4
+Memory buffer error\&.
+.RE
+.PP
+PAM_CONV_ERR
+.RS 4
+Conversation failure\&. The application should not set
+\fI*resp\fR\&.
+.RE
+.PP
+PAM_SUCCESS
+.RS 4
+Success\&.
+.RE
+.SH "SEE ALSO"
+.PP
+\fBpam_start\fR(3),
+\fBpam_set_item\fR(3),
+\fBpam_get_item\fR(3),
+\fBpam_strerror\fR(3),
+\fBpam\fR(8)
diff --git a/doc/man/pam_end.3 b/doc/man/pam_end.3
new file mode 100644
index 00000000..88567522
--- /dev/null
+++ b/doc/man/pam_end.3
@@ -0,0 +1,89 @@
+'\" t
+.\" Title: pam_end
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_END" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_end \- termination of PAM transaction
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_appl\&.h>
+.fi
+.ft
+.HP \w'int\ pam_end('u
+.BI "int pam_end(pam_handle_t\ *" "pamh" ", int\ " "pam_status" ");"
+.SH "DESCRIPTION"
+.PP
+The
+\fBpam_end\fR
+function terminates the PAM transaction and is the last function an application should call in the PAM context\&. Upon return the handle
+\fIpamh\fR
+is no longer valid and all memory associated with it will be invalid\&.
+.PP
+The
+\fIpam_status\fR
+argument should be set to the value returned to the application by the last PAM library call\&.
+.PP
+The value taken by
+\fIpam_status\fR
+is used as an argument to the module specific callback function,
+\fBcleanup()\fR
+(See
+\fBpam_set_data\fR(3)
+and
+\fBpam_get_data\fR(3))\&. In this way the module can be given notification of the pass/fail nature of the tear\-down process, and perform any last minute tasks that are appropriate to the module before it is unlinked\&. This argument can be logically OR\*(Aqd with
+\fIPAM_DATA_SILENT\fR
+to indicate to indicate that the module should not treat the call too seriously\&. It is generally used to indicate that the current closing of the library is in a
+\fBfork\fR(2)ed process, and that the parent will take care of cleaning up things that exist outside of the current process space (files etc\&.)\&.
+.PP
+This function
+\fIfree\fR\*(Aqs all memory for items associated with the
+\fBpam_set_item\fR(3)
+and
+\fBpam_get_item\fR(3)
+functions\&. Pointers associated with such objects are not valid anymore after
+\fBpam_end\fR
+was called\&.
+.SH "RETURN VALUES"
+.PP
+PAM_SUCCESS
+.RS 4
+Transaction was successful terminated\&.
+.RE
+.PP
+PAM_SYSTEM_ERR
+.RS 4
+System error, for example a NULL pointer was submitted as PAM handle or the function was called by a module\&.
+.RE
+.SH "SEE ALSO"
+.PP
+\fBpam_get_data\fR(3),
+\fBpam_set_data\fR(3),
+\fBpam_start\fR(3),
+\fBpam_strerror\fR(3)
diff --git a/doc/man/pam_error.3 b/doc/man/pam_error.3
new file mode 100644
index 00000000..d7f4ca7c
--- /dev/null
+++ b/doc/man/pam_error.3
@@ -0,0 +1,90 @@
+'\" t
+.\" Title: pam_error
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_ERROR" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_error, pam_verror \- display error messages to the user
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_ext\&.h>
+.fi
+.ft
+.HP \w'int\ pam_error('u
+.BI "int pam_error(pam_handle_t\ *" "pamh" ", const\ char\ *" "fmt" ", " "\&.\&.\&." ");"
+.HP \w'int\ pam_verror('u
+.BI "int pam_verror(pam_handle_t\ *" "pamh" ", const\ char\ *" "fmt" ", va_list\ " "args" ");"
+.SH "DESCRIPTION"
+.PP
+The
+\fBpam_error\fR
+function prints error messages through the conversation function to the user\&.
+.PP
+The
+\fBpam_verror\fR
+function performs the same task as
+\fBpam_error()\fR
+with the difference that it takes a set of arguments which have been obtained using the
+\fBstdarg\fR(3)
+variable argument list macros\&.
+.SH "RETURN VALUES"
+.PP
+PAM_BUF_ERR
+.RS 4
+Memory buffer error\&.
+.RE
+.PP
+PAM_CONV_ERR
+.RS 4
+Conversation failure\&.
+.RE
+.PP
+PAM_SUCCESS
+.RS 4
+Error message was displayed\&.
+.RE
+.PP
+PAM_SYSTEM_ERR
+.RS 4
+System error\&.
+.RE
+.SH "SEE ALSO"
+.PP
+\fBpam_info\fR(3),
+\fBpam_vinfo\fR(3),
+\fBpam_prompt\fR(3),
+\fBpam_vprompt\fR(3),
+\fBpam\fR(8)
+.SH "STANDARDS"
+.PP
+The
+\fBpam_error\fR
+and
+\fBpam_verror\fR
+functions are Linux\-PAM extensions\&.
diff --git a/doc/man/pam_fail_delay.3 b/doc/man/pam_fail_delay.3
new file mode 100644
index 00000000..47d63b73
--- /dev/null
+++ b/doc/man/pam_fail_delay.3
@@ -0,0 +1,166 @@
+'\" t
+.\" Title: pam_fail_delay
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_FAIL_DELAY" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_fail_delay \- request a delay on failure
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_appl\&.h>
+.fi
+.ft
+.HP \w'int\ pam_fail_delay('u
+.BI "int pam_fail_delay(pam_handle_t\ *" "pamh" ", unsigned\ int\ " "usec" ");"
+.SH "DESCRIPTION"
+.PP
+The
+\fBpam_fail_delay\fR
+function provides a mechanism by which an application or module can suggest a minimum delay of
+\fIusec\fR
+micro\-seconds\&. The function keeps a record of the longest time requested with this function\&. Should
+\fBpam_authenticate\fR(3)
+fail, the failing return to the application is delayed by an amount of time randomly distributed (by up to 50%) about this longest value\&.
+.PP
+Independent of success, the delay time is reset to its zero default value when the PAM service module returns control to the application\&. The delay occurs
+\fIafter\fR
+all authentication modules have been called, but
+\fIbefore\fR
+control is returned to the service application\&.
+.PP
+When using this function the programmer should check if it is available with:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+#ifdef HAVE_PAM_FAIL_DELAY
+ \&.\&.\&.\&.
+#endif /* HAVE_PAM_FAIL_DELAY */
+
+.fi
+.if n \{\
+.RE
+.\}
+.PP
+For applications written with a single thread that are event driven in nature, generating this delay may be undesirable\&. Instead, the application may want to register the delay in some other way\&. For example, in a single threaded server that serves multiple authentication requests from a single event loop, the application might want to simply mark a given connection as blocked until an application timer expires\&. For this reason the delay function can be changed with the
+\fIPAM_FAIL_DELAY\fR
+item\&. It can be queried and set with
+\fBpam_get_item\fR(3)
+and
+\fBpam_set_item \fR(3)
+respectively\&. The value used to set it should be a function pointer of the following prototype:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+void (*delay_fn)(int retval, unsigned usec_delay, void *appdata_ptr);
+
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+The arguments being the
+\fIretval\fR
+return code of the module stack, the
+\fIusec_delay\fR
+micro\-second delay that libpam is requesting and the
+\fIappdata_ptr\fR
+that the application has associated with the current
+\fIpamh\fR\&. This last value was set by the application when it called
+\fBpam_start\fR(3)
+or explicitly with
+\fBpam_set_item\fR(3)\&. Note, if PAM_FAIL_DELAY item is unset (or set to NULL), then no delay will be performed\&.
+.SH "RATIONALE"
+.PP
+It is often possible to attack an authentication scheme by exploiting the time it takes the scheme to deny access to an applicant user\&. In cases of
+\fIshort\fR
+timeouts, it may prove possible to attempt a
+\fIbrute force\fR
+dictionary attack \-\- with an automated process, the attacker tries all possible passwords to gain access to the system\&. In other cases, where individual failures can take measurable amounts of time (indicating the nature of the failure), an attacker can obtain useful information about the authentication process\&. These latter attacks make use of procedural delays that constitute a
+\fIcovert channel\fR
+of useful information\&.
+.PP
+To minimize the effectiveness of such attacks, it is desirable to introduce a random delay in a failed authentication process\&. Preferable this value should be set by the application or a special PAM module\&. Standard PAM modules should not modify the delay unconditional\&.
+.SH "EXAMPLE"
+.PP
+For example, a login application may require a failure delay of roughly 3 seconds\&. It will contain the following code:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+ pam_fail_delay (pamh, 3000000 /* micro\-seconds */ );
+ pam_authenticate (pamh, 0);
+
+.fi
+.if n \{\
+.RE
+.\}
+.PP
+if the modules do not request a delay, the failure delay will be between 1\&.5 and 4\&.5 seconds\&.
+.PP
+However, the modules, invoked in the authentication process, may also request delays:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+module #1: pam_fail_delay (pamh, 2000000);
+module #2: pam_fail_delay (pamh, 4000000);
+
+.fi
+.if n \{\
+.RE
+.\}
+.PP
+in this case, it is the largest requested value that is used to compute the actual failed delay: here between 2 and 6 seconds\&.
+.SH "RETURN VALUES"
+.PP
+PAM_SUCCESS
+.RS 4
+Delay was successful adjusted\&.
+.RE
+.PP
+PAM_SYSTEM_ERR
+.RS 4
+A NULL pointer was submitted as PAM handle\&.
+.RE
+.SH "SEE ALSO"
+.PP
+\fBpam_start\fR(3),
+\fBpam_get_item\fR(3),
+\fBpam_strerror\fR(3)
+.SH "STANDARDS"
+.PP
+The
+\fBpam_fail_delay\fR
+function is an Linux\-PAM extension\&.
diff --git a/doc/man/pam_get_authtok.3 b/doc/man/pam_get_authtok.3
new file mode 100644
index 00000000..21e47772
--- /dev/null
+++ b/doc/man/pam_get_authtok.3
@@ -0,0 +1,169 @@
+'\" t
+.\" Title: pam_get_authtok
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_GET_AUTHTOK" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_get_authtok, pam_get_authtok_verify, pam_get_authtok_noverify \- get authentication token
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_ext\&.h>
+.fi
+.ft
+.HP \w'int\ pam_get_authtok('u
+.BI "int pam_get_authtok(pam_handle_t\ *" "pamh" ", int\ " "item" ", const\ char\ **" "authtok" ", const\ char\ *" "prompt" ");"
+.HP \w'int\ pam_get_authtok_noverify('u
+.BI "int pam_get_authtok_noverify(pam_handle_t\ *" "pamh" ", const\ char\ **" "authtok" ", const\ char\ *" "prompt" ");"
+.HP \w'int\ pam_get_authtok_verify('u
+.BI "int pam_get_authtok_verify(pam_handle_t\ *" "pamh" ", const\ char\ **" "authtok" ", const\ char\ *" "prompt" ");"
+.SH "DESCRIPTION"
+.PP
+The
+\fBpam_get_authtok\fR
+function returns the cached authentication token, or prompts the user if no token is currently cached\&. It is intended for internal use by Linux\-PAM and PAM service modules\&. Upon successful return,
+\fIauthtok\fR
+contains a pointer to the value of the authentication token\&. Note, this is a pointer to the
+\fIactual\fR
+data and should
+\fBnot\fR
+be
+\fIfree()\fR\*(Aqed or over\-written!
+.PP
+The
+\fIprompt\fR
+argument specifies a prompt to use if no token is cached\&. If a NULL pointer is given,
+\fBpam_get_authtok\fR
+uses pre\-defined prompts\&.
+.PP
+The following values are supported for
+\fIitem\fR:
+.PP
+PAM_AUTHTOK
+.RS 4
+Returns the current authentication token\&. Called from
+\fBpam_sm_chauthtok\fR(3)\fBpam_get_authtok\fR
+will ask the user to confirm the new token by retyping it\&. If a prompt was specified, "Retype" will be used as prefix\&.
+.RE
+.PP
+PAM_OLDAUTHTOK
+.RS 4
+Returns the previous authentication token when changing authentication tokens\&.
+.RE
+.PP
+The
+\fBpam_get_authtok_noverify\fR
+function can only be used for changing the password (from
+\fBpam_sm_chauthtok\fR(3))\&. It returns the cached authentication token, or prompts the user if no token is currently cached\&. The difference to
+\fBpam_get_authtok\fR
+is, that this function does not ask a second time for the password to verify it\&. Upon successful return,
+\fIauthtok\fR
+contains a pointer to the value of the authentication token\&. Note, this is a pointer to the
+\fIactual\fR
+data and should
+\fBnot\fR
+be
+\fIfree()\fR\*(Aqed or over\-written!
+.PP
+The
+\fBpam_get_authtok_verify\fR
+function can only be used to verify a password for mistypes gotten by
+\fBpam_get_authtok_noverify\fR(3)\&. This function asks a second time for the password and verify it with the password provided by
+\fIauthtok\fR
+argument\&. In case of an error, the value of
+\fIauthtok\fR
+is undefined\&. Else this argument will point to the
+\fIactual\fR
+data and should
+\fBnot\fR
+be
+\fIfree()\fR\*(Aqed or over\-written!
+.SH "OPTIONS"
+.PP
+\fBpam_get_authtok\fR
+honours the following module options:
+.PP
+\fBtry_first_pass\fR
+.RS 4
+Before prompting the user for their password, the module first tries the previous stacked module\*(Aqs 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
+\fBuse_authtok\fR
+.RS 4
+When password changing enforce the module to set the new token to the one provided by a previously stacked
+\fBpassword\fR
+module\&. If no token is available token changing will fail\&.
+.RE
+.PP
+\fBauthtok_type=\fR\fB\fIXXX\fR\fR
+.RS 4
+The default action is for the module to use the following prompts when requesting passwords: "New UNIX password: " and "Retype UNIX password: "\&. The example word
+\fIUNIX\fR
+can be replaced with this option, by default it is empty\&.
+.RE
+.SH "RETURN VALUES"
+.PP
+PAM_AUTH_ERR
+.RS 4
+Authentication token could not be retrieved\&.
+.RE
+.PP
+PAM_AUTHTOK_ERR
+.RS 4
+New authentication could not be retrieved\&.
+.RE
+.PP
+PAM_SUCCESS
+.RS 4
+Authentication token was successfully retrieved\&.
+.RE
+.PP
+PAM_SYSTEM_ERR
+.RS 4
+No space for an authentication token was provided\&.
+.RE
+.PP
+PAM_TRY_AGAIN
+.RS 4
+New authentication tokens mismatch\&.
+.RE
+.SH "SEE ALSO"
+.PP
+\fBpam\fR(8)
+.SH "STANDARDS"
+.PP
+The
+\fBpam_get_authtok\fR
+function is a Linux\-PAM extensions\&.
diff --git a/doc/man/pam_get_authtok_noverify.3 b/doc/man/pam_get_authtok_noverify.3
new file mode 100644
index 00000000..07acbd0c
--- /dev/null
+++ b/doc/man/pam_get_authtok_noverify.3
@@ -0,0 +1 @@
+.so pam_get_authtok.3
diff --git a/doc/man/pam_get_authtok_verify.3 b/doc/man/pam_get_authtok_verify.3
new file mode 100644
index 00000000..07acbd0c
--- /dev/null
+++ b/doc/man/pam_get_authtok_verify.3
@@ -0,0 +1 @@
+.so pam_get_authtok.3
diff --git a/doc/man/pam_get_data.3 b/doc/man/pam_get_data.3
new file mode 100644
index 00000000..2be35e8b
--- /dev/null
+++ b/doc/man/pam_get_data.3
@@ -0,0 +1,82 @@
+'\" t
+.\" Title: pam_get_data
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_GET_DATA" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_get_data \- get module internal data
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_modules\&.h>
+.fi
+.ft
+.HP \w'int\ pam_get_data('u
+.BI "int pam_get_data(const\ pam_handle_t\ *" "pamh" ", const\ char\ *" "module_data_name" ", const\ void\ **" "data" ");"
+.SH "DESCRIPTION"
+.PP
+This function together with the
+\fBpam_set_data\fR(3)
+function is useful to manage module\-specific data meaningful only to the calling PAM module\&.
+.PP
+The
+\fBpam_get_data\fR
+function looks up the object associated with the (hopefully) unique string
+\fImodule_data_name\fR
+in the PAM context specified by the
+\fIpamh\fR
+argument\&. A successful call to
+\fBpam_get_data\fR
+will result in
+\fIdata\fR
+pointing to the object\&. Note, this data is
+\fInot\fR
+a copy and should be treated as
+\fIconstant\fR
+by the module\&.
+.SH "RETURN VALUES"
+.PP
+PAM_SUCCESS
+.RS 4
+Data was successful retrieved\&.
+.RE
+.PP
+PAM_SYSTEM_ERR
+.RS 4
+A NULL pointer was submitted as PAM handle or the function was called by an application\&.
+.RE
+.PP
+PAM_NO_MODULE_DATA
+.RS 4
+Module data not found or there is an entry, but it has the value NULL\&.
+.RE
+.SH "SEE ALSO"
+.PP
+\fBpam_end\fR(3),
+\fBpam_set_data\fR(3),
+\fBpam_strerror\fR(3)
diff --git a/doc/man/pam_get_item.3 b/doc/man/pam_get_item.3
new file mode 100644
index 00000000..dcde4dab
--- /dev/null
+++ b/doc/man/pam_get_item.3
@@ -0,0 +1,196 @@
+'\" t
+.\" Title: pam_get_item
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_GET_ITEM" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_get_item \- getting PAM informations
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_modules\&.h>
+.fi
+.ft
+.HP \w'int\ pam_get_item('u
+.BI "int pam_get_item(const\ pam_handle_t\ *" "pamh" ", int\ " "item_type" ", const\ void\ **" "item" ");"
+.SH "DESCRIPTION"
+.PP
+The
+\fBpam_get_item\fR
+function allows applications and PAM service modules to access and retrieve PAM informations of
+\fIitem_type\fR\&. Upon successful return,
+\fIitem\fR
+contains a pointer to the value of the corresponding item\&. Note, this is a pointer to the
+\fIactual\fR
+data and should
+\fBnot\fR
+be
+\fIfree()\fR\*(Aqed or over\-written! The following values are supported for
+\fIitem_type\fR:
+.PP
+PAM_SERVICE
+.RS 4
+The service name (which identifies that PAM stack that the PAM functions will use to authenticate the program)\&.
+.RE
+.PP
+PAM_USER
+.RS 4
+The username of the entity under whose identity service will be given\&. That is, following authentication,
+\fIPAM_USER\fR
+identifies the local entity that gets to use the service\&. Note, this value can be mapped from something (eg\&., "anonymous") to something else (eg\&. "guest119") by any module in the PAM stack\&. As such an application should consult the value of
+\fIPAM_USER\fR
+after each call to a PAM function\&.
+.RE
+.PP
+PAM_USER_PROMPT
+.RS 4
+The string used when prompting for a user\*(Aqs name\&. The default value for this string is a localized version of "login: "\&.
+.RE
+.PP
+PAM_TTY
+.RS 4
+The terminal name: prefixed by
+/dev/
+if it is a device file; for graphical, X\-based, applications the value for this item should be the
+\fI$DISPLAY\fR
+variable\&.
+.RE
+.PP
+PAM_RUSER
+.RS 4
+The requesting user name: local name for a locally requesting user or a remote user name for a remote requesting user\&.
+.sp
+Generally an application or module will attempt to supply the value that is most strongly authenticated (a local account before a remote one\&. The level of trust in this value is embodied in the actual authentication stack associated with the application, so it is ultimately at the discretion of the system administrator\&.
+.sp
+\fIPAM_RUSER@PAM_RHOST\fR
+should always identify the requesting user\&. In some cases,
+\fIPAM_RUSER\fR
+may be NULL\&. In such situations, it is unclear who the requesting entity is\&.
+.RE
+.PP
+PAM_RHOST
+.RS 4
+The requesting hostname (the hostname of the machine from which the
+\fIPAM_RUSER\fR
+entity is requesting service)\&. That is
+\fIPAM_RUSER@PAM_RHOST\fR
+does identify the requesting user\&. In some applications,
+\fIPAM_RHOST\fR
+may be NULL\&. In such situations, it is unclear where the authentication request is originating from\&.
+.RE
+.PP
+PAM_AUTHTOK
+.RS 4
+The authentication token (often a password)\&. This token should be ignored by all module functions besides
+\fBpam_sm_authenticate\fR(3)
+and
+\fBpam_sm_chauthtok\fR(3)\&. In the former function it is used to pass the most recent authentication token from one stacked module to another\&. In the latter function the token is used for another purpose\&. It contains the currently active authentication token\&.
+.RE
+.PP
+PAM_OLDAUTHTOK
+.RS 4
+The old authentication token\&. This token should be ignored by all module functions except
+\fBpam_sm_chauthtok\fR(3)\&.
+.RE
+.PP
+PAM_CONV
+.RS 4
+The pam_conv structure\&. See
+\fBpam_conv\fR(3)\&.
+.RE
+.PP
+The following additional items are specific to Linux\-PAM and should not be used in portable applications:
+.PP
+PAM_FAIL_DELAY
+.RS 4
+A function pointer to redirect centrally managed failure delays\&. See
+\fBpam_fail_delay\fR(3)\&.
+.RE
+.PP
+PAM_XDISPLAY
+.RS 4
+The name of the X display\&. For graphical, X\-based applications the value for this item should be the
+\fI$DISPLAY\fR
+variable\&. This value may be used independently of
+\fIPAM_TTY\fR
+for passing the name of the display\&.
+.RE
+.PP
+PAM_XAUTHDATA
+.RS 4
+A pointer to a structure containing the X authentication data required to make a connection to the display specified by
+\fIPAM_XDISPLAY\fR, if such information is necessary\&. See
+\fBpam_xauth_data\fR(3)\&.
+.RE
+.PP
+PAM_AUTHTOK_TYPE
+.RS 4
+The default action is for the module to use the following prompts when requesting passwords: "New UNIX password: " and "Retype UNIX password: "\&. The example word
+\fIUNIX\fR
+can be replaced with this item, by default it is empty\&. This item is used by
+\fBpam_get_authtok\fR(3)\&.
+.RE
+.PP
+If a service module wishes to obtain the name of the user, it should not use this function, but instead perform a call to
+\fBpam_get_user\fR(3)\&.
+.PP
+Only a service module is privileged to read the authentication tokens, PAM_AUTHTOK and PAM_OLDAUTHTOK\&.
+.SH "RETURN VALUES"
+.PP
+PAM_BAD_ITEM
+.RS 4
+The application attempted to set an undefined or inaccessible item\&.
+.RE
+.PP
+PAM_BUF_ERR
+.RS 4
+Memory buffer error\&.
+.RE
+.PP
+PAM_PERM_DENIED
+.RS 4
+The value of
+\fIitem\fR
+was NULL\&.
+.RE
+.PP
+PAM_SUCCESS
+.RS 4
+Data was successful updated\&.
+.RE
+.PP
+PAM_SYSTEM_ERR
+.RS 4
+The
+\fIpam_handle_t\fR
+passed as first argument was invalid\&.
+.RE
+.SH "SEE ALSO"
+.PP
+\fBpam_set_item\fR(3),
+\fBpam_strerror\fR(3)
diff --git a/doc/man/pam_get_user.3 b/doc/man/pam_get_user.3
new file mode 100644
index 00000000..397f0798
--- /dev/null
+++ b/doc/man/pam_get_user.3
@@ -0,0 +1,123 @@
+'\" t
+.\" Title: pam_get_user
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2018
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_GET_USER" "3" "05/18/2018" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_get_user \- get user name
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_modules\&.h>
+.fi
+.ft
+.HP \w'int\ pam_get_user('u
+.BI "int pam_get_user(const\ pam_handle_t\ *" "pamh" ", const\ char\ **" "user" ", const\ char\ *" "prompt" ");"
+.SH "DESCRIPTION"
+.PP
+The
+\fBpam_get_user\fR
+function returns the name of the user specified by
+\fBpam_start\fR(3)\&. If no user was specified it returns what
+\fBpam_get_item (pamh, PAM_USER, \&.\&.\&. );\fR
+would have returned\&. If this is NULL it obtains the username via the
+\fBpam_conv\fR(3)
+mechanism, it prompts the user with the first non\-NULL string in the following list:
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+The
+\fIprompt\fR
+argument passed to the function\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+What is returned by pam_get_item (pamh, PAM_USER_PROMPT, \&.\&.\&. );
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+The default prompt: "login: "
+.RE
+.PP
+By whatever means the username is obtained, a pointer to it is returned as the contents of
+\fI*user\fR\&. Note, this memory should
+\fBnot\fR
+be
+\fIfree()\fR\*(Aqd or
+\fImodified\fR
+by the module\&.
+.PP
+This function sets the
+\fIPAM_USER\fR
+item associated with the
+\fBpam_set_item\fR(3)
+and
+\fBpam_get_item\fR(3)
+functions\&.
+.SH "RETURN VALUES"
+.PP
+PAM_SUCCESS
+.RS 4
+User name was successful retrieved\&.
+.RE
+.PP
+PAM_SYSTEM_ERR
+.RS 4
+A NULL pointer was submitted\&.
+.RE
+.PP
+PAM_CONV_ERR
+.RS 4
+The conversation method supplied by the application failed to obtain the username\&.
+.RE
+.SH "SEE ALSO"
+.PP
+\fBpam_end\fR(3),
+\fBpam_get_item\fR(3),
+\fBpam_set_item\fR(3),
+\fBpam_strerror\fR(3)
diff --git a/doc/man/pam_getenv.3 b/doc/man/pam_getenv.3
new file mode 100644
index 00000000..ea47fe3e
--- /dev/null
+++ b/doc/man/pam_getenv.3
@@ -0,0 +1,60 @@
+'\" t
+.\" Title: pam_getenv
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_GETENV" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_getenv \- get a PAM environment variable
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_appl\&.h>
+.fi
+.ft
+.HP \w'const\ char\ *pam_getenv('u
+.BI "const char *pam_getenv(pam_handle_t\ *" "pamh" ", const\ char\ *" "name" ");"
+.SH "DESCRIPTION"
+.PP
+The
+\fBpam_getenv\fR
+function searches the PAM environment list as associated with the handle
+\fIpamh\fR
+for an item that matches the string pointed to by
+\fIname\fR
+and returns a pointer to the value of the environment variable\&. The application is not allowed to free the data\&.
+.SH "RETURN VALUES"
+.PP
+The
+\fBpam_getenv\fR
+function returns NULL on failure\&.
+.SH "SEE ALSO"
+.PP
+\fBpam_start\fR(3),
+\fBpam_getenvlist\fR(3),
+\fBpam_putenv\fR(3),
+\fBpam\fR(8)
diff --git a/doc/man/pam_getenvlist.3 b/doc/man/pam_getenvlist.3
new file mode 100644
index 00000000..945cc903
--- /dev/null
+++ b/doc/man/pam_getenvlist.3
@@ -0,0 +1,66 @@
+'\" t
+.\" Title: pam_getenvlist
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_GETENVLIST" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_getenvlist \- getting the PAM environment
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_appl\&.h>
+.fi
+.ft
+.HP \w'char\ **pam_getenvlist('u
+.BI "char **pam_getenvlist(pam_handle_t\ *" "pamh" ");"
+.SH "DESCRIPTION"
+.PP
+The
+\fBpam_getenvlist\fR
+function returns a complete copy of the PAM environment as associated with the handle
+\fIpamh\fR\&. The PAM environment variables represent the contents of the regular environment variables of the authenticated user when service is granted\&.
+.PP
+The format of the memory is a malloc()\*(Aqd array of char pointers, the last element of which is set to NULL\&. Each of the non\-NULL entries in this array point to a NUL terminated and malloc()\*(Aqd char string of the form: "\fIname=value\fR"\&.
+.PP
+It should be noted that this memory will never be free()\*(Aqd by libpam\&. Once obtained by a call to
+\fBpam_getenvlist\fR, it is the responsibility of the calling application to free() this memory\&.
+.PP
+It is by design, and not a coincidence, that the format and contents of the returned array matches that required for the third argument of the
+\fBexecle\fR(3)
+function call\&.
+.SH "RETURN VALUES"
+.PP
+The
+\fBpam_getenvlist\fR
+function returns NULL on failure\&.
+.SH "SEE ALSO"
+.PP
+\fBpam_start\fR(3),
+\fBpam_getenv\fR(3),
+\fBpam_putenv\fR(3),
+\fBpam\fR(8)
diff --git a/doc/man/pam_info.3 b/doc/man/pam_info.3
new file mode 100644
index 00000000..0d50a2ff
--- /dev/null
+++ b/doc/man/pam_info.3
@@ -0,0 +1,86 @@
+'\" t
+.\" Title: pam_info
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_INFO" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_info, pam_vinfo \- display messages to the user
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_ext\&.h>
+.fi
+.ft
+.HP \w'int\ pam_info('u
+.BI "int pam_info(pam_handle_t\ *" "pamh" ", const\ char\ *" "fmt" ", " "\&.\&.\&." ");"
+.HP \w'int\ pam_vinfo('u
+.BI "int pam_vinfo(pam_handle_t\ *" "pamh" ", const\ char\ *" "fmt" ", va_list\ " "args" ");"
+.SH "DESCRIPTION"
+.PP
+The
+\fBpam_info\fR
+function prints messages through the conversation function to the user\&.
+.PP
+The
+\fBpam_vinfo\fR
+function performs the same task as
+\fBpam_info()\fR
+with the difference that it takes a set of arguments which have been obtained using the
+\fBstdarg\fR(3)
+variable argument list macros\&.
+.SH "RETURN VALUES"
+.PP
+PAM_BUF_ERR
+.RS 4
+Memory buffer error\&.
+.RE
+.PP
+PAM_CONV_ERR
+.RS 4
+Conversation failure\&.
+.RE
+.PP
+PAM_SUCCESS
+.RS 4
+Transaction was successful created\&.
+.RE
+.PP
+PAM_SYSTEM_ERR
+.RS 4
+System error\&.
+.RE
+.SH "SEE ALSO"
+.PP
+\fBpam\fR(8)
+.SH "STANDARDS"
+.PP
+The
+\fBpam_info\fR
+and
+\fBpam_vinfo\fR
+functions are Linux\-PAM extensions\&.
diff --git a/doc/man/pam_misc_drop_env.3 b/doc/man/pam_misc_drop_env.3
new file mode 100644
index 00000000..89b73012
--- /dev/null
+++ b/doc/man/pam_misc_drop_env.3
@@ -0,0 +1,62 @@
+'\" t
+.\" Title: pam_misc_drop_env
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_MISC_DROP_ENV" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_misc_drop_env \- liberating a locally saved environment
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_misc\&.h>
+.fi
+.ft
+.HP \w'int\ pam_misc_drop_env('u
+.BI "int pam_misc_drop_env(char\ **" "env" ");"
+.SH "DESCRIPTION"
+.PP
+This function is defined to complement the
+\fBpam_getenvlist\fR(3)
+function\&. It liberates the memory associated with
+\fIenv\fR,
+\fIoverwriting\fR
+with
+\fI0\fR
+all memory before
+\fBfree()\fRing it\&.
+.SH "SEE ALSO"
+.PP
+\fBpam_getenvlist\fR(3),
+\fBpam\fR(8)
+.SH "STANDARDS"
+.PP
+The
+\fBpam_misc_drop_env\fR
+function is part of the
+\fBlibpam_misc\fR
+Library and not defined in any standard\&.
diff --git a/doc/man/pam_misc_paste_env.3 b/doc/man/pam_misc_paste_env.3
new file mode 100644
index 00000000..f94f14e0
--- /dev/null
+++ b/doc/man/pam_misc_paste_env.3
@@ -0,0 +1,57 @@
+'\" t
+.\" Title: pam_misc_paste_env
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_MISC_PASTE_ENV" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_misc_paste_env \- transcribing an environment to that of PAM
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_misc\&.h>
+.fi
+.ft
+.HP \w'int\ pam_misc_paste_env('u
+.BI "int pam_misc_paste_env(pam_handle_t\ *" "pamh" ", const\ char\ *\ const\ *" "user" ");"
+.SH "DESCRIPTION"
+.PP
+This function takes the supplied list of environment pointers and
+\fIuploads\fR
+its contents to the PAM environment\&. Success is indicated by
+PAM_SUCCESS\&.
+.SH "SEE ALSO"
+.PP
+\fBpam_putenv\fR(3),
+\fBpam\fR(8)
+.SH "STANDARDS"
+.PP
+The
+\fBpam_misc_paste_env\fR
+function is part of the
+\fBlibpam_misc\fR
+Library and not defined in any standard\&.
diff --git a/doc/man/pam_misc_setenv.3 b/doc/man/pam_misc_setenv.3
new file mode 100644
index 00000000..06caaeb2
--- /dev/null
+++ b/doc/man/pam_misc_setenv.3
@@ -0,0 +1,62 @@
+'\" t
+.\" Title: pam_misc_setenv
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_MISC_SETENV" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_misc_setenv \- BSD like PAM environment variable setting
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_misc\&.h>
+.fi
+.ft
+.HP \w'int\ pam_misc_setenv('u
+.BI "int pam_misc_setenv(pam_handle_t\ *" "pamh" ", const\ char\ *" "name" ", const\ char\ *" "value" ", int\ " "readonly" ");"
+.SH "DESCRIPTION"
+.PP
+This function performs a task equivalent to
+\fBpam_putenv\fR(3), its syntax is, however, more like the BSD style function;
+\fBsetenv()\fR\&. The
+\fIname\fR
+and
+\fIvalue\fR
+are concatenated with an \*(Aq=\*(Aq to form a name=value and passed to
+\fBpam_putenv()\fR\&. If, however, the PAM variable is already set, the replacement will only be applied if the last argument,
+\fIreadonly\fR, is zero\&.
+.SH "SEE ALSO"
+.PP
+\fBpam_putenv\fR(3),
+\fBpam\fR(8)
+.SH "STANDARDS"
+.PP
+The
+\fBpam_misc_setenv\fR
+function is part of the
+\fBlibpam_misc\fR
+Library and not defined in any standard\&.
diff --git a/doc/man/pam_open_session.3 b/doc/man/pam_open_session.3
new file mode 100644
index 00000000..ec4d729d
--- /dev/null
+++ b/doc/man/pam_open_session.3
@@ -0,0 +1,81 @@
+'\" t
+.\" Title: pam_open_session
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_OPEN_SESSION" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_open_session \- start PAM session management
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_appl\&.h>
+.fi
+.ft
+.HP \w'int\ pam_open_session('u
+.BI "int pam_open_session(pam_handle_t\ *" "pamh" ", int\ " "flags" ");"
+.SH "DESCRIPTION"
+.PP
+The
+\fBpam_open_session\fR
+function sets up a user session for a previously successful authenticated user\&. The session should later be terminated with a call to
+\fBpam_close_session\fR(3)\&.
+.PP
+It should be noted that the effective uid,
+\fBgeteuid\fR(2)\&. of the application should be of sufficient privilege to perform such tasks as creating or mounting the user\*(Aqs home directory for example\&.
+.PP
+The flags argument is the binary or of zero or more of the following values:
+.PP
+PAM_SILENT
+.RS 4
+Do not emit any messages\&.
+.RE
+.SH "RETURN VALUES"
+.PP
+PAM_ABORT
+.RS 4
+General failure\&.
+.RE
+.PP
+PAM_BUF_ERR
+.RS 4
+Memory buffer error\&.
+.RE
+.PP
+PAM_SESSION_ERR
+.RS 4
+Session failure\&.
+.RE
+.PP
+PAM_SUCCESS
+.RS 4
+Session was successful created\&.
+.RE
+.SH "SEE ALSO"
+.PP
+\fBpam_close_session\fR(3),
+\fBpam_strerror\fR(3)
diff --git a/doc/man/pam_prompt.3 b/doc/man/pam_prompt.3
new file mode 100644
index 00000000..adc48456
--- /dev/null
+++ b/doc/man/pam_prompt.3
@@ -0,0 +1,81 @@
+'\" t
+.\" Title: pam_prompt
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_PROMPT" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_prompt, pam_vprompt \- interface to conversation function
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_ext\&.h>
+.fi
+.ft
+.HP \w'int\ pam_prompt('u
+.BI "int pam_prompt(pam_handle_t\ *" "pamh" ", int\ " "style" ", char\ **" "response" ", const\ char\ *" "fmt" ", " "\&.\&.\&." ");"
+.HP \w'int\ pam_vprompt('u
+.BI "int pam_vprompt(pam_handle_t\ *" "pamh" ", int\ " "style" ", char\ **" "response" ", const\ char\ *" "fmt" ", va_list\ " "args" ");"
+.SH "DESCRIPTION"
+.PP
+The
+\fBpam_prompt\fR
+function constructs a message from the specified format string and arguments and passes it to the conversation function as set by the service\&. Upon successful return,
+\fIresponse\fR
+is set to point to a string returned from the conversation function\&. This string is allocated on heap and should be freed\&.
+.SH "RETURN VALUES"
+.PP
+PAM_BUF_ERR
+.RS 4
+Memory buffer error\&.
+.RE
+.PP
+PAM_CONV_ERR
+.RS 4
+Conversation failure\&.
+.RE
+.PP
+PAM_SUCCESS
+.RS 4
+Conversation succeded, response is set\&.
+.RE
+.PP
+PAM_SYSTEM_ERR
+.RS 4
+System error\&.
+.RE
+.SH "SEE ALSO"
+.PP
+\fBpam\fR(8),
+\fBpam_conv\fR(3)
+.SH "STANDARDS"
+.PP
+The
+\fBpam_prompt\fR
+and
+\fBpam_vprompt\fR
+functions are Linux\-PAM extensions\&.
diff --git a/doc/man/pam_putenv.3 b/doc/man/pam_putenv.3
new file mode 100644
index 00000000..115d8d2f
--- /dev/null
+++ b/doc/man/pam_putenv.3
@@ -0,0 +1,111 @@
+'\" t
+.\" Title: pam_putenv
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_PUTENV" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_putenv \- set or change PAM environment variable
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_appl\&.h>
+.fi
+.ft
+.HP \w'int\ pam_putenv('u
+.BI "int pam_putenv(pam_handle_t\ *" "pamh" ", const\ char\ *" "name_value" ");"
+.SH "DESCRIPTION"
+.PP
+The
+\fBpam_putenv\fR
+function is used to add or change the value of PAM environment variables as associated with the
+\fIpamh\fR
+handle\&.
+.PP
+The
+\fIpamh\fR
+argument is an authentication handle obtained by a prior call to pam_start()\&. The
+\fIname_value\fR
+argument is a single NUL terminated string of one of the following forms:
+.PP
+NAME=value of variable
+.RS 4
+In this case the environment variable of the given NAME is set to the indicated value:
+\fIvalue of variable\fR\&. If this variable is already known, it is overwritten\&. Otherwise it is added to the PAM environment\&.
+.RE
+.PP
+NAME=
+.RS 4
+This function sets the variable to an empty value\&. It is listed separately to indicate that this is the correct way to achieve such a setting\&.
+.RE
+.PP
+NAME
+.RS 4
+Without an \*(Aq=\*(Aq the
+\fBpam_putenv\fR() function will delete the corresponding variable from the PAM environment\&.
+.RE
+.PP
+\fBpam_putenv\fR() operates on a copy of
+\fIname_value\fR, which means in contrast to
+\fBputenv\fR(3), the application is responsible to free the data\&.
+.SH "RETURN VALUES"
+.PP
+PAM_PERM_DENIED
+.RS 4
+Argument
+\fIname_value\fR
+given is a NULL pointer\&.
+.RE
+.PP
+PAM_BAD_ITEM
+.RS 4
+Variable requested (for deletion) is not currently set\&.
+.RE
+.PP
+PAM_ABORT
+.RS 4
+The
+\fIpamh\fR
+handle is corrupt\&.
+.RE
+.PP
+PAM_BUF_ERR
+.RS 4
+Memory buffer error\&.
+.RE
+.PP
+PAM_SUCCESS
+.RS 4
+The environment variable was successfully updated\&.
+.RE
+.SH "SEE ALSO"
+.PP
+\fBpam_start\fR(3),
+\fBpam_getenv\fR(3),
+\fBpam_getenvlist\fR(3),
+\fBpam_strerror\fR(3),
+\fBpam\fR(8)
diff --git a/doc/man/pam_set_data.3 b/doc/man/pam_set_data.3
new file mode 100644
index 00000000..8c4a498b
--- /dev/null
+++ b/doc/man/pam_set_data.3
@@ -0,0 +1,119 @@
+'\" t
+.\" Title: pam_set_data
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_SET_DATA" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_set_data \- set module internal data
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_modules\&.h>
+.fi
+.ft
+.HP \w'int\ pam_set_data('u
+.BI "int pam_set_data(pam_handle_t\ *" "pamh" ", const\ char\ *" "module_data_name" ", void\ *" "data" ", void\ " "(*cleanup)(pam_handle_t\ *pamh,\ void\ *data,\ int\ error_status)" ");"
+.SH "DESCRIPTION"
+.PP
+The
+\fBpam_set_data\fR
+function associates a pointer to an object with the (hopefully) unique string
+\fImodule_data_name\fR
+in the PAM context specified by the
+\fIpamh\fR
+argument\&.
+.PP
+PAM modules may be dynamically loadable objects\&. In general such files should not contain
+\fIstatic\fR
+variables\&. This function and its counterpart
+\fBpam_get_data\fR(3), provide a mechanism for a module to associate some data with the handle
+\fIpamh\fR\&. Typically a module will call the
+\fBpam_set_data\fR
+function to register some data under a (hopefully) unique
+\fImodule_data_name\fR\&. The data is available for use by other modules too but
+\fInot\fR
+by an application\&. Since this functions stores only a pointer to the
+\fIdata\fR, the module should not modify or free the content of it\&.
+.PP
+The function
+\fBcleanup()\fR
+is associated with the
+\fIdata\fR
+and, if non\-NULL, it is called when this data is over\-written or following a call to
+\fBpam_end\fR(3)\&.
+.PP
+The
+\fIerror_status\fR
+argument is used to indicate to the module the sort of action it is to take in cleaning this data item\&. As an example, Kerberos creates a ticket file during the authentication phase, this file might be associated with a data item\&. When
+\fBpam_end\fR(3)
+is called by the module, the
+\fIerror_status\fR
+carries the return value of the
+\fBpam_authenticate\fR(3)
+or other
+\fIlibpam\fR
+function as appropriate\&. Based on this value the Kerberos module may choose to delete the ticket file (\fIauthentication failure\fR) or leave it in place\&.
+.PP
+The
+\fIerror_status\fR
+may have been logically OR\*(Aqd with either of the following two values:
+.PP
+PAM_DATA_REPLACE
+.RS 4
+When a data item is being replaced (through a second call to
+\fBpam_set_data\fR) this mask is used\&. Otherwise, the call is assumed to be from
+\fBpam_end\fR(3)\&.
+.RE
+.PP
+PAM_DATA_SILENT
+.RS 4
+Which indicates that the process would prefer to perform the
+\fBcleanup()\fR
+quietly\&. That is, discourages logging/messages to the user\&.
+.RE
+.SH "RETURN VALUES"
+.PP
+PAM_BUF_ERR
+.RS 4
+Memory buffer error\&.
+.RE
+.PP
+PAM_SUCCESS
+.RS 4
+Data was successful stored\&.
+.RE
+.PP
+PAM_SYSTEM_ERR
+.RS 4
+A NULL pointer was submitted as PAM handle or the function was called by an application\&.
+.RE
+.SH "SEE ALSO"
+.PP
+\fBpam_end\fR(3),
+\fBpam_get_data\fR(3),
+\fBpam_strerror\fR(3)
diff --git a/doc/man/pam_set_item.3 b/doc/man/pam_set_item.3
new file mode 100644
index 00000000..96a760cd
--- /dev/null
+++ b/doc/man/pam_set_item.3
@@ -0,0 +1,193 @@
+'\" t
+.\" Title: pam_set_item
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_SET_ITEM" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_set_item \- set and update PAM informations
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_modules\&.h>
+.fi
+.ft
+.HP \w'int\ pam_set_item('u
+.BI "int pam_set_item(pam_handle_t\ *" "pamh" ", int\ " "item_type" ", const\ void\ *" "item" ");"
+.SH "DESCRIPTION"
+.PP
+The
+\fBpam_set_item\fR
+function allows applications and PAM service modules to access and to update PAM informations of
+\fIitem_type\fR\&. For this a copy of the object pointed to by the
+\fIitem\fR
+argument is created\&. The following
+\fIitem_type\fRs are supported:
+.PP
+PAM_SERVICE
+.RS 4
+The service name (which identifies that PAM stack that the PAM functions will use to authenticate the program)\&.
+.RE
+.PP
+PAM_USER
+.RS 4
+The username of the entity under whose identity service will be given\&. That is, following authentication,
+\fIPAM_USER\fR
+identifies the local entity that gets to use the service\&. Note, this value can be mapped from something (eg\&., "anonymous") to something else (eg\&. "guest119") by any module in the PAM stack\&. As such an application should consult the value of
+\fIPAM_USER\fR
+after each call to a PAM function\&.
+.RE
+.PP
+PAM_USER_PROMPT
+.RS 4
+The string used when prompting for a user\*(Aqs name\&. The default value for this string is a localized version of "login: "\&.
+.RE
+.PP
+PAM_TTY
+.RS 4
+The terminal name: prefixed by
+/dev/
+if it is a device file; for graphical, X\-based, applications the value for this item should be the
+\fI$DISPLAY\fR
+variable\&.
+.RE
+.PP
+PAM_RUSER
+.RS 4
+The requesting user name: local name for a locally requesting user or a remote user name for a remote requesting user\&.
+.sp
+Generally an application or module will attempt to supply the value that is most strongly authenticated (a local account before a remote one\&. The level of trust in this value is embodied in the actual authentication stack associated with the application, so it is ultimately at the discretion of the system administrator\&.
+.sp
+\fIPAM_RUSER@PAM_RHOST\fR
+should always identify the requesting user\&. In some cases,
+\fIPAM_RUSER\fR
+may be NULL\&. In such situations, it is unclear who the requesting entity is\&.
+.RE
+.PP
+PAM_RHOST
+.RS 4
+The requesting hostname (the hostname of the machine from which the
+\fIPAM_RUSER\fR
+entity is requesting service)\&. That is
+\fIPAM_RUSER@PAM_RHOST\fR
+does identify the requesting user\&. In some applications,
+\fIPAM_RHOST\fR
+may be NULL\&. In such situations, it is unclear where the authentication request is originating from\&.
+.RE
+.PP
+PAM_AUTHTOK
+.RS 4
+The authentication token (often a password)\&. This token should be ignored by all module functions besides
+\fBpam_sm_authenticate\fR(3)
+and
+\fBpam_sm_chauthtok\fR(3)\&. In the former function it is used to pass the most recent authentication token from one stacked module to another\&. In the latter function the token is used for another purpose\&. It contains the currently active authentication token\&.
+.RE
+.PP
+PAM_OLDAUTHTOK
+.RS 4
+The old authentication token\&. This token should be ignored by all module functions except
+\fBpam_sm_chauthtok\fR(3)\&.
+.RE
+.PP
+PAM_CONV
+.RS 4
+The pam_conv structure\&. See
+\fBpam_conv\fR(3)\&.
+.RE
+.PP
+The following additional items are specific to Linux\-PAM and should not be used in portable applications:
+.PP
+PAM_FAIL_DELAY
+.RS 4
+A function pointer to redirect centrally managed failure delays\&. See
+\fBpam_fail_delay\fR(3)\&.
+.RE
+.PP
+PAM_XDISPLAY
+.RS 4
+The name of the X display\&. For graphical, X\-based applications the value for this item should be the
+\fI$DISPLAY\fR
+variable\&. This value may be used independently of
+\fIPAM_TTY\fR
+for passing the name of the display\&.
+.RE
+.PP
+PAM_XAUTHDATA
+.RS 4
+A pointer to a structure containing the X authentication data required to make a connection to the display specified by
+\fIPAM_XDISPLAY\fR, if such information is necessary\&. See
+\fBpam_xauth_data\fR(3)\&.
+.RE
+.PP
+PAM_AUTHTOK_TYPE
+.RS 4
+The default action is for the module to use the following prompts when requesting passwords: "New UNIX password: " and "Retype UNIX password: "\&. The example word
+\fIUNIX\fR
+can be replaced with this item, by default it is empty\&. This item is used by
+\fBpam_get_authtok\fR(3)\&.
+.RE
+.PP
+For all
+\fIitem_type\fRs, other than PAM_CONV and PAM_FAIL_DELAY,
+\fIitem\fR
+is a pointer to a <NUL> terminated character string\&. In the case of PAM_CONV,
+\fIitem\fR
+points to an initialized
+\fIpam_conv\fR
+structure\&. In the case of PAM_FAIL_DELAY,
+\fIitem\fR
+is a function pointer:
+\fBvoid (*delay_fn)(int retval, unsigned usec_delay, void *appdata_ptr)\fR
+.PP
+Both, PAM_AUTHTOK and PAM_OLDAUTHTOK, will be reseted before returning to the application\&. Which means an application is not able to access the authentication tokens\&.
+.SH "RETURN VALUES"
+.PP
+PAM_BAD_ITEM
+.RS 4
+The application attempted to set an undefined or inaccessible item\&.
+.RE
+.PP
+PAM_BUF_ERR
+.RS 4
+Memory buffer error\&.
+.RE
+.PP
+PAM_SUCCESS
+.RS 4
+Data was successful updated\&.
+.RE
+.PP
+PAM_SYSTEM_ERR
+.RS 4
+The
+\fIpam_handle_t\fR
+passed as first argument was invalid\&.
+.RE
+.SH "SEE ALSO"
+.PP
+\fBpam_get_item\fR(3),
+\fBpam_strerror\fR(3)
diff --git a/doc/man/pam_setcred.3 b/doc/man/pam_setcred.3
new file mode 100644
index 00000000..fcf08309
--- /dev/null
+++ b/doc/man/pam_setcred.3
@@ -0,0 +1,122 @@
+'\" t
+.\" Title: pam_setcred
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_SETCRED" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_setcred \- establish / delete user credentials
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_appl\&.h>
+.fi
+.ft
+.HP \w'int\ pam_setcred('u
+.BI "int pam_setcred(pam_handle_t\ *" "pamh" ", int\ " "flags" ");"
+.SH "DESCRIPTION"
+.PP
+The
+\fBpam_setcred\fR
+function is used to establish, maintain and delete the credentials of a user\&. It should be called to set the credentials after a user has been authenticated and before a session is opened for the user (with
+\fBpam_open_session\fR(3))\&. The credentials should be deleted after the session has been closed (with
+\fBpam_close_session\fR(3))\&.
+.PP
+A credential is something that the user possesses\&. It is some property, such as a
+\fIKerberos\fR
+ticket, or a supplementary group membership that make up the uniqueness of a given user\&. On a Linux system the user\*(Aqs
+\fIUID\fR
+and
+\fIGID\fR\*(Aqs are credentials too\&. However, it has been decided that these properties (along with the default supplementary groups of which the user is a member) are credentials that should be set directly by the application and not by PAM\&. Such credentials should be established, by the application, prior to a call to this function\&. For example,
+\fBinitgroups\fR(2)
+(or equivalent) should have been performed\&.
+.PP
+Valid
+\fIflags\fR, any one of which, may be logically OR\*(Aqd with
+\fBPAM_SILENT\fR, are:
+.PP
+PAM_ESTABLISH_CRED
+.RS 4
+Initialize the credentials for the user\&.
+.RE
+.PP
+PAM_DELETE_CRED
+.RS 4
+Delete the user\*(Aqs credentials\&.
+.RE
+.PP
+PAM_REINITIALIZE_CRED
+.RS 4
+Fully reinitialize the user\*(Aqs credentials\&.
+.RE
+.PP
+PAM_REFRESH_CRED
+.RS 4
+Extend the lifetime of the existing credentials\&.
+.RE
+.SH "RETURN VALUES"
+.PP
+PAM_BUF_ERR
+.RS 4
+Memory buffer error\&.
+.RE
+.PP
+PAM_CRED_ERR
+.RS 4
+Failed to set user credentials\&.
+.RE
+.PP
+PAM_CRED_EXPIRED
+.RS 4
+User credentials are expired\&.
+.RE
+.PP
+PAM_CRED_UNAVAIL
+.RS 4
+Failed to retrieve user credentials\&.
+.RE
+.PP
+PAM_SUCCESS
+.RS 4
+Data was successful stored\&.
+.RE
+.PP
+PAM_SYSTEM_ERR
+.RS 4
+A NULL pointer was submitted as PAM handle, the function was called by a module or another system error occured\&.
+.RE
+.PP
+PAM_USER_UNKNOWN
+.RS 4
+User is not known to an authentication module\&.
+.RE
+.SH "SEE ALSO"
+.PP
+\fBpam_authenticate\fR(3),
+\fBpam_open_session\fR(3),
+\fBpam_close_session\fR(3),
+\fBpam_strerror\fR(3)
diff --git a/doc/man/pam_sm_acct_mgmt.3 b/doc/man/pam_sm_acct_mgmt.3
new file mode 100644
index 00000000..eb566705
--- /dev/null
+++ b/doc/man/pam_sm_acct_mgmt.3
@@ -0,0 +1,111 @@
+'\" t
+.\" Title: pam_sm_acct_mgmt
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_SM_ACCT_MGMT" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_sm_acct_mgmt \- PAM service function for account management
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#define PAM_SM_ACCOUNT
+.fi
+.ft
+.sp
+.ft B
+.nf
+#include <security/pam_modules\&.h>
+.fi
+.ft
+.HP \w'int\ pam_sm_acct_mgmt('u
+.BI "int pam_sm_acct_mgmt(pam_handle_t\ *" "pamh" ", int\ " "flags" ", int\ " "argc" ", const\ char\ **" "argv" ");"
+.SH "DESCRIPTION"
+.PP
+The
+\fBpam_sm_acct_mgmt\fR
+function is the service module\*(Aqs implementation of the
+\fBpam_acct_mgmt\fR(3)
+interface\&.
+.PP
+This function performs the task of establishing whether the user is permitted to gain access at this time\&. It should be understood that the user has previously been validated by an authentication module\&. This function checks for other things\&. Such things might be: the time of day or the date, the terminal line, remote hostname, etc\&. This function may also determine things like the expiration on passwords, and respond that the user change it before continuing\&.
+.PP
+Valid flags, which may be logically OR\*(Aqd with
+\fIPAM_SILENT\fR, are:
+.PP
+PAM_SILENT
+.RS 4
+Do not emit any messages\&.
+.RE
+.PP
+PAM_DISALLOW_NULL_AUTHTOK
+.RS 4
+Return
+\fBPAM_AUTH_ERR\fR
+if the database of authentication tokens for this authentication mechanism has a
+\fINULL\fR
+entry for the user\&.
+.RE
+.SH "RETURN VALUES"
+.PP
+PAM_ACCT_EXPIRED
+.RS 4
+User account has expired\&.
+.RE
+.PP
+PAM_AUTH_ERR
+.RS 4
+Authentication failure\&.
+.RE
+.PP
+PAM_NEW_AUTHTOK_REQD
+.RS 4
+The user\*(Aqs authentication token has expired\&. Before calling this function again the application will arrange for a new one to be given\&. This will likely result in a call to
+\fBpam_sm_chauthtok()\fR\&.
+.RE
+.PP
+PAM_PERM_DENIED
+.RS 4
+Permission denied\&.
+.RE
+.PP
+PAM_SUCCESS
+.RS 4
+The authentication token was successfully updated\&.
+.RE
+.PP
+PAM_USER_UNKNOWN
+.RS 4
+User unknown to password service\&.
+.RE
+.SH "SEE ALSO"
+.PP
+\fBpam\fR(3),
+\fBpam_acct_mgmt\fR(3),
+\fBpam_sm_chauthtok\fR(3),
+\fBpam_strerror\fR(3),
+\fBPAM\fR(8)
diff --git a/doc/man/pam_sm_authenticate.3 b/doc/man/pam_sm_authenticate.3
new file mode 100644
index 00000000..6ea6390d
--- /dev/null
+++ b/doc/man/pam_sm_authenticate.3
@@ -0,0 +1,112 @@
+'\" t
+.\" Title: pam_sm_authenticate
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_SM_AUTHENTICATE" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_sm_authenticate \- PAM service function for user authentication
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#define PAM_SM_AUTH
+.fi
+.ft
+.sp
+.ft B
+.nf
+#include <security/pam_modules\&.h>
+.fi
+.ft
+.HP \w'int\ pam_sm_authenticate('u
+.BI "int pam_sm_authenticate(pam_handle_t\ *" "pamh" ", int\ " "flags" ", int\ " "argc" ", const\ char\ **" "argv" ");"
+.SH "DESCRIPTION"
+.PP
+The
+\fBpam_sm_authenticate\fR
+function is the service module\*(Aqs implementation of the
+\fBpam_authenticate\fR(3)
+interface\&.
+.PP
+This function performs the task of authenticating the user\&.
+.PP
+Valid flags, which may be logically OR\*(Aqd with
+\fIPAM_SILENT\fR, are:
+.PP
+PAM_SILENT
+.RS 4
+Do not emit any messages\&.
+.RE
+.PP
+PAM_DISALLOW_NULL_AUTHTOK
+.RS 4
+Return
+\fBPAM_AUTH_ERR\fR
+if the database of authentication tokens for this authentication mechanism has a
+\fINULL\fR
+entry for the user\&. Without this flag, such a
+\fINULL\fR
+token will lead to a success without the user being prompted\&.
+.RE
+.SH "RETURN VALUES"
+.PP
+PAM_AUTH_ERR
+.RS 4
+Authentication failure\&.
+.RE
+.PP
+PAM_CRED_INSUFFICIENT
+.RS 4
+For some reason the application does not have sufficient credentials to authenticate the user\&.
+.RE
+.PP
+PAM_AUTHINFO_UNAVAIL
+.RS 4
+The modules were not able to access the authentication information\&. This might be due to a network or hardware failure etc\&.
+.RE
+.PP
+PAM_SUCCESS
+.RS 4
+The authentication token was successfully updated\&.
+.RE
+.PP
+PAM_USER_UNKNOWN
+.RS 4
+The supplied username is not known to the authentication service\&.
+.RE
+.PP
+PAM_MAXTRIES
+.RS 4
+One or more of the authentication modules has reached its limit of tries authenticating the user\&. Do not try again\&.
+.RE
+.SH "SEE ALSO"
+.PP
+\fBpam\fR(3),
+\fBpam_authenticate\fR(3),
+\fBpam_sm_setcred\fR(3),
+\fBpam_strerror\fR(3),
+\fBPAM\fR(8)
diff --git a/doc/man/pam_sm_chauthtok.3 b/doc/man/pam_sm_chauthtok.3
new file mode 100644
index 00000000..50918aa2
--- /dev/null
+++ b/doc/man/pam_sm_chauthtok.3
@@ -0,0 +1,143 @@
+'\" t
+.\" Title: pam_sm_chauthtok
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_SM_CHAUTHTOK" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_sm_chauthtok \- PAM service function for authentication token management
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#define PAM_SM_PASSWORD
+.fi
+.ft
+.sp
+.ft B
+.nf
+#include <security/pam_modules\&.h>
+.fi
+.ft
+.HP \w'int\ pam_sm_chauthtok('u
+.BI "int pam_sm_chauthtok(pam_handle_t\ *" "pamh" ", int\ " "flags" ", int\ " "argc" ", const\ char\ **" "argv" ");"
+.SH "DESCRIPTION"
+.PP
+The
+\fBpam_sm_chauthtok\fR
+function is the service module\*(Aqs implementation of the
+\fBpam_chauthtok\fR(3)
+interface\&.
+.PP
+This function is used to (re\-)set the authentication token of the user\&.
+.PP
+Valid flags, which may be logically OR\*(Aqd with
+\fIPAM_SILENT\fR, are:
+.PP
+PAM_SILENT
+.RS 4
+Do not emit any messages\&.
+.RE
+.PP
+PAM_CHANGE_EXPIRED_AUTHTOK
+.RS 4
+This argument indicates to the module that the user\*(Aqs authentication token (password) should only be changed if it has expired\&. This flag is optional and
+\fImust\fR
+be combined with one of the following two flags\&. Note, however, the following two options are
+\fImutually exclusive\fR\&.
+.RE
+.PP
+PAM_PRELIM_CHECK
+.RS 4
+This indicates that the modules are being probed as to their ready status for altering the user\*(Aqs authentication token\&. If the module requires access to another system over some network it should attempt to verify it can connect to this system on receiving this flag\&. If a module cannot establish it is ready to update the user\*(Aqs authentication token it should return
+\fBPAM_TRY_AGAIN\fR, this information will be passed back to the application\&.
+.sp
+If the control value
+\fIsufficient\fR
+is used in the password stack, the
+\fIPAM_PRELIM_CHECK\fR
+section of the modules following that control value is not always executed\&.
+.RE
+.PP
+PAM_UPDATE_AUTHTOK
+.RS 4
+This informs the module that this is the call it should change the authorization tokens\&. If the flag is logically OR\*(Aqd with
+\fBPAM_CHANGE_EXPIRED_AUTHTOK\fR, the token is only changed if it has actually expired\&.
+.RE
+.PP
+The PAM library calls this function twice in succession\&. The first time with
+\fBPAM_PRELIM_CHECK\fR
+and then, if the module does not return
+\fBPAM_TRY_AGAIN\fR, subsequently with
+\fBPAM_UPDATE_AUTHTOK\fR\&. It is only on the second call that the authorization token is (possibly) changed\&.
+.SH "RETURN VALUES"
+.PP
+PAM_AUTHTOK_ERR
+.RS 4
+The module was unable to obtain the new authentication token\&.
+.RE
+.PP
+PAM_AUTHTOK_RECOVERY_ERR
+.RS 4
+The module was unable to obtain the old authentication token\&.
+.RE
+.PP
+PAM_AUTHTOK_LOCK_BUSY
+.RS 4
+Cannot change the authentication token since it is currently locked\&.
+.RE
+.PP
+PAM_AUTHTOK_DISABLE_AGING
+.RS 4
+Authentication token aging has been disabled\&.
+.RE
+.PP
+PAM_PERM_DENIED
+.RS 4
+Permission denied\&.
+.RE
+.PP
+PAM_TRY_AGAIN
+.RS 4
+Preliminary check was unsuccessful\&. Signals an immediate return to the application is desired\&.
+.RE
+.PP
+PAM_SUCCESS
+.RS 4
+The authentication token was successfully updated\&.
+.RE
+.PP
+PAM_USER_UNKNOWN
+.RS 4
+User unknown to password service\&.
+.RE
+.SH "SEE ALSO"
+.PP
+\fBpam\fR(3),
+\fBpam_chauthtok\fR(3),
+\fBpam_sm_chauthtok\fR(3),
+\fBpam_strerror\fR(3),
+\fBPAM\fR(8)
diff --git a/doc/man/pam_sm_close_session.3 b/doc/man/pam_sm_close_session.3
new file mode 100644
index 00000000..836a1241
--- /dev/null
+++ b/doc/man/pam_sm_close_session.3
@@ -0,0 +1,80 @@
+'\" t
+.\" Title: pam_sm_close_session
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_SM_CLOSE_SESSION" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_sm_close_session \- PAM service function to terminate session management
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#define PAM_SM_SESSION
+.fi
+.ft
+.sp
+.ft B
+.nf
+#include <security/pam_modules\&.h>
+.fi
+.ft
+.HP \w'int\ pam_sm_close_session('u
+.BI "int pam_sm_close_session(pam_handle_t\ *" "pamh" ", int\ " "flags" ", int\ " "argc" ", const\ char\ **" "argv" ");"
+.SH "DESCRIPTION"
+.PP
+The
+\fBpam_sm_close_session\fR
+function is the service module\*(Aqs implementation of the
+\fBpam_close_session\fR(3)
+interface\&.
+.PP
+This function is called to terminate a session\&. The only valid value for
+\fIflags\fR
+is zero or:
+.PP
+PAM_SILENT
+.RS 4
+Do not emit any messages\&.
+.RE
+.SH "RETURN VALUES"
+.PP
+PAM_SESSION_ERR
+.RS 4
+Cannot make/remove an entry for the specified session\&.
+.RE
+.PP
+PAM_SUCCESS
+.RS 4
+The session was successfully terminated\&.
+.RE
+.SH "SEE ALSO"
+.PP
+\fBpam\fR(3),
+\fBpam_close_session\fR(3),
+\fBpam_sm_close_session\fR(3),
+\fBpam_strerror\fR(3),
+\fBPAM\fR(8)
diff --git a/doc/man/pam_sm_open_session.3 b/doc/man/pam_sm_open_session.3
new file mode 100644
index 00000000..94813d09
--- /dev/null
+++ b/doc/man/pam_sm_open_session.3
@@ -0,0 +1,80 @@
+'\" t
+.\" Title: pam_sm_open_session
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_SM_OPEN_SESSION" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_sm_open_session \- PAM service function to start session management
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#define PAM_SM_SESSION
+.fi
+.ft
+.sp
+.ft B
+.nf
+#include <security/pam_modules\&.h>
+.fi
+.ft
+.HP \w'int\ pam_sm_open_session('u
+.BI "int pam_sm_open_session(pam_handle_t\ *" "pamh" ", int\ " "flags" ", int\ " "argc" ", const\ char\ **" "argv" ");"
+.SH "DESCRIPTION"
+.PP
+The
+\fBpam_sm_open_session\fR
+function is the service module\*(Aqs implementation of the
+\fBpam_open_session\fR(3)
+interface\&.
+.PP
+This function is called to commence a session\&. The only valid value for
+\fIflags\fR
+is zero or:
+.PP
+PAM_SILENT
+.RS 4
+Do not emit any messages\&.
+.RE
+.SH "RETURN VALUES"
+.PP
+PAM_SESSION_ERR
+.RS 4
+Cannot make/remove an entry for the specified session\&.
+.RE
+.PP
+PAM_SUCCESS
+.RS 4
+The session was successfully started\&.
+.RE
+.SH "SEE ALSO"
+.PP
+\fBpam\fR(3),
+\fBpam_open_session\fR(3),
+\fBpam_sm_close_session\fR(3),
+\fBpam_strerror\fR(3),
+\fBPAM\fR(8)
diff --git a/doc/man/pam_sm_setcred.3 b/doc/man/pam_sm_setcred.3
new file mode 100644
index 00000000..fbeb9a8f
--- /dev/null
+++ b/doc/man/pam_sm_setcred.3
@@ -0,0 +1,134 @@
+'\" t
+.\" Title: pam_sm_setcred
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_SM_SETCRED" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_sm_setcred \- PAM service function to alter credentials
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#define PAM_SM_AUTH
+.fi
+.ft
+.sp
+.ft B
+.nf
+#include <security/pam_modules\&.h>
+.fi
+.ft
+.HP \w'int\ pam_sm_setcred('u
+.BI "int pam_sm_setcred(pam_handle_t\ *" "pamh" ", int\ " "flags" ", int\ " "argc" ", const\ char\ **" "argv" ");"
+.SH "DESCRIPTION"
+.PP
+The
+\fBpam_sm_setcred\fR
+function is the service module\*(Aqs implementation of the
+\fBpam_setcred\fR(3)
+interface\&.
+.PP
+This function performs the task of altering the credentials of the user with respect to the corresponding authorization scheme\&. Generally, an authentication module may have access to more information about a user than their authentication token\&. This function is used to make such information available to the application\&. It should only be called
+\fIafter\fR
+the user has been authenticated but before a session has been established\&.
+.PP
+Valid flags, which may be logically OR\*(Aqd with
+\fIPAM_SILENT\fR, are:
+.PP
+PAM_SILENT
+.RS 4
+Do not emit any messages\&.
+.RE
+.PP
+PAM_ESTABLISH_CRED
+.RS 4
+Initialize the credentials for the user\&.
+.RE
+.PP
+PAM_DELETE_CRED
+.RS 4
+Delete the credentials associated with the authentication service\&.
+.RE
+.PP
+PAM_REINITIALIZE_CRED
+.RS 4
+Reinitialize the user credentials\&.
+.RE
+.PP
+PAM_REFRESH_CRED
+.RS 4
+Extend the lifetime of the user credentials\&.
+.RE
+.PP
+The way the
+\fBauth\fR
+stack is navigated in order to evaluate the
+\fBpam_setcred\fR() function call, independent of the
+\fBpam_sm_setcred\fR() return codes, is exactly the same way that it was navigated when evaluating the
+\fBpam_authenticate\fR() library call\&. Typically, if a stack entry was ignored in evaluating
+\fBpam_authenticate\fR(), it will be ignored when libpam evaluates the
+\fBpam_setcred\fR() function call\&. Otherwise, the return codes from each module specific
+\fBpam_sm_setcred\fR() call are treated as
+\fBrequired\fR\&.
+.SH "RETURN VALUES"
+.PP
+PAM_CRED_UNAVAIL
+.RS 4
+This module cannot retrieve the user\*(Aqs credentials\&.
+.RE
+.PP
+PAM_CRED_EXPIRED
+.RS 4
+The user\*(Aqs credentials have expired\&.
+.RE
+.PP
+PAM_CRED_ERR
+.RS 4
+This module was unable to set the credentials of the user\&.
+.RE
+.PP
+PAM_SUCCESS
+.RS 4
+The user credential was successfully set\&.
+.RE
+.PP
+PAM_USER_UNKNOWN
+.RS 4
+The user is not known to this authentication module\&.
+.RE
+.PP
+These, non\-\fIPAM_SUCCESS\fR, return values will typically lead to the credential stack
+\fIfailing\fR\&. The first such error will dominate in the return value of
+\fBpam_setcred\fR()\&.
+.SH "SEE ALSO"
+.PP
+\fBpam\fR(3),
+\fBpam_authenticate\fR(3),
+\fBpam_setcred\fR(3),
+\fBpam_sm_authenticate\fR(3),
+\fBpam_strerror\fR(3),
+\fBPAM\fR(8)
diff --git a/doc/man/pam_start.3 b/doc/man/pam_start.3
new file mode 100644
index 00000000..2a9d24bd
--- /dev/null
+++ b/doc/man/pam_start.3
@@ -0,0 +1,104 @@
+'\" t
+.\" Title: pam_start
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_START" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_start \- initialization of PAM transaction
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_appl\&.h>
+.fi
+.ft
+.HP \w'int\ pam_start('u
+.BI "int pam_start(const\ char\ *" "service_name" ", const\ char\ *" "user" ", const\ struct\ pam_conv\ *" "pam_conversation" ", pam_handle_t\ **" "pamh" ");"
+.SH "DESCRIPTION"
+.PP
+The
+\fBpam_start\fR
+function creates the PAM context and initiates the PAM transaction\&. It is the first of the PAM functions that needs to be called by an application\&. The transaction state is contained entirely within the structure identified by this handle, so it is possible to have multiple transactions in parallel\&. But it is not possible to use the same handle for different transactions, a new one is needed for every new context\&.
+.PP
+The
+\fIservice_name\fR
+argument specifies the name of the service to apply and will be stored as PAM_SERVICE item in the new context\&. The policy for the service will be read from the file
+/etc/pam\&.d/service_name
+or, if that file does not exist, from
+/etc/pam\&.conf\&.
+.PP
+The
+\fIuser\fR
+argument can specify the name of the target user and will be stored as PAM_USER item\&. If the argument is NULL, the module has to ask for this item if necessary\&.
+.PP
+The
+\fIpam_conversation\fR
+argument points to a
+\fIstruct pam_conv\fR
+describing the conversation function to use\&. An application must provide this for direct communication between a loaded module and the application\&.
+.PP
+Following a successful return (PAM_SUCCESS) the contents of
+\fIpamh\fR
+is a handle that contains the PAM context for successive calls to the PAM functions\&. In an error case is the content of
+\fIpamh\fR
+undefined\&.
+.PP
+The
+\fIpam_handle_t\fR
+is a blind structure and the application should not attempt to probe it directly for information\&. Instead the PAM library provides the functions
+\fBpam_set_item\fR(3)
+and
+\fBpam_get_item\fR(3)\&. The PAM handle cannot be used for mulitiple authentications at the same time as long as
+\fBpam_end\fR
+was not called on it before\&.
+.SH "RETURN VALUES"
+.PP
+PAM_ABORT
+.RS 4
+General failure\&.
+.RE
+.PP
+PAM_BUF_ERR
+.RS 4
+Memory buffer error\&.
+.RE
+.PP
+PAM_SUCCESS
+.RS 4
+Transaction was successful created\&.
+.RE
+.PP
+PAM_SYSTEM_ERR
+.RS 4
+System error, for example a NULL pointer was submitted instead of a pointer to data\&.
+.RE
+.SH "SEE ALSO"
+.PP
+\fBpam_get_data\fR(3),
+\fBpam_set_data\fR(3),
+\fBpam_end\fR(3),
+\fBpam_strerror\fR(3)
diff --git a/doc/man/pam_strerror.3 b/doc/man/pam_strerror.3
new file mode 100644
index 00000000..ccd7a053
--- /dev/null
+++ b/doc/man/pam_strerror.3
@@ -0,0 +1,52 @@
+'\" t
+.\" Title: pam_strerror
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_STRERROR" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_strerror \- return string describing PAM error code
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_appl\&.h>
+.fi
+.ft
+.HP \w'const\ char\ *pam_strerror('u
+.BI "const char *pam_strerror(pam_handle_t\ *" "pamh" ", int\ " "errnum" ");"
+.SH "DESCRIPTION"
+.PP
+The
+\fBpam_strerror\fR
+function returns a pointer to a string describing the error code passed in the argument
+\fIerrnum\fR, possibly using the LC_MESSAGES part of the current locale to select the appropriate language\&. This string must not be modified by the application\&. No library function will modify this string\&.
+.SH "RETURN VALUES"
+.PP
+This function returns always a pointer to a string\&.
+.SH "SEE ALSO"
+.PP
+\fBpam\fR(8)
diff --git a/doc/man/pam_syslog.3 b/doc/man/pam_syslog.3
new file mode 100644
index 00000000..3543e107
--- /dev/null
+++ b/doc/man/pam_syslog.3
@@ -0,0 +1,77 @@
+'\" t
+.\" Title: pam_syslog
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_SYSLOG" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_syslog, pam_vsyslog \- send messages to the system logger
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <syslog\&.h>
+.fi
+.ft
+.sp
+.ft B
+.nf
+#include <security/pam_ext\&.h>
+.fi
+.ft
+.HP \w'void\ pam_syslog('u
+.BI "void pam_syslog(const\ pam_handle_t\ *" "pamh" ", int\ " "priority" ", const\ char\ *" "fmt" ", " "\&.\&.\&." ");"
+.HP \w'void\ pam_vsyslog('u
+.BI "void pam_vsyslog(const\ pam_handle_t\ *" "pamh" ", int\ " "priority" ", const\ char\ *" "fmt" ", va_list\ " "args" ");"
+.SH "DESCRIPTION"
+.PP
+The
+\fBpam_syslog\fR
+function logs messages using
+\fBsyslog\fR(3)
+and is intended for internal use by Linux\-PAM and PAM service modules\&. The
+\fIpriority\fR
+argument is formed by ORing the facility and the level values as documented in the
+\fBsyslog\fR(3)
+manual page\&.
+.PP
+The
+\fBpam_vsyslog\fR
+function performs the same task as
+\fBpam_syslog()\fR
+with the difference that it takes a set of arguments which have been obtained using the
+\fBstdarg\fR(3)
+variable argument list macros\&.
+.SH "SEE ALSO"
+.PP
+\fBpam\fR(8)
+.SH "STANDARDS"
+.PP
+The
+\fBpam_syslog\fR
+and
+\fBpam_vsyslog\fR
+functions are Linux\-PAM extensions\&.
diff --git a/doc/man/pam_verror.3 b/doc/man/pam_verror.3
new file mode 100644
index 00000000..a0292f44
--- /dev/null
+++ b/doc/man/pam_verror.3
@@ -0,0 +1 @@
+.so pam_error.3
diff --git a/doc/man/pam_vinfo.3 b/doc/man/pam_vinfo.3
new file mode 100644
index 00000000..4aea758b
--- /dev/null
+++ b/doc/man/pam_vinfo.3
@@ -0,0 +1 @@
+.so pam_info.3
diff --git a/doc/man/pam_vprompt.3 b/doc/man/pam_vprompt.3
new file mode 100644
index 00000000..cec7f44c
--- /dev/null
+++ b/doc/man/pam_vprompt.3
@@ -0,0 +1 @@
+.so pam_prompt.3
diff --git a/doc/man/pam_vsyslog.3 b/doc/man/pam_vsyslog.3
new file mode 100644
index 00000000..8d6a07e9
--- /dev/null
+++ b/doc/man/pam_vsyslog.3
@@ -0,0 +1 @@
+.so pam_syslog.3
diff --git a/doc/man/pam_xauth_data.3 b/doc/man/pam_xauth_data.3
new file mode 100644
index 00000000..6b9f8d98
--- /dev/null
+++ b/doc/man/pam_xauth_data.3
@@ -0,0 +1,84 @@
+'\" t
+.\" Title: pam_xauth_data
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 05/18/2017
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_XAUTH_DATA" "3" "05/18/2017" "Linux-PAM Manual" "Linux-PAM Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pam_xauth_data \- structure containing X authentication data
+.SH "SYNOPSIS"
+.sp
+.ft B
+.nf
+#include <security/pam_appl\&.h>
+.fi
+.ft
+.sp
+.nf
+struct pam_xauth_data {
+ int namelen;
+ char *name;
+ int datalen;
+ char *data;
+};
+
+.fi
+.SH "DESCRIPTION"
+.PP
+The
+\fBpam_xauth_data\fR
+structure contains X authentication data used to make a connection to an X display\&. Using this mechanism, an application can communicate X authentication data to PAM service modules\&. This allows modules to make a connection to the user\*(Aqs X display in order to label the user\*(Aqs session on login, display visual feedback or for other purposes\&.
+.PP
+The
+\fIname\fR
+field contains the name of the authentication method, such as "MIT\-MAGIC\-COOKIE\-1"\&. The
+\fInamelen\fR
+field contains the length of this string, not including the trailing NUL character\&.
+.PP
+The
+\fIdata\fR
+field contains the authentication method\-specific data corresponding to the specified name\&. The
+\fIdatalen\fR
+field contains its length in bytes\&.
+.PP
+The X authentication data can be changed with the
+\fIPAM_XAUTH_DATA\fR
+item\&. It can be queried and set with
+\fBpam_get_item\fR(3)
+and
+\fBpam_set_item \fR(3)
+respectively\&. The value used to set it should be a pointer to a pam_xauth_data structure\&. An internal copy of both the structure itself and its fields is made by PAM when setting the item\&.
+.SH "SEE ALSO"
+.PP
+\fBpam_start\fR(3),
+\fBpam_get_item\fR(3),
+.SH "STANDARDS"
+.PP
+The
+\fBpam_xauth_data\fR
+structure and
+\fIPAM_XAUTH_DATA\fR
+item are Linux\-PAM extensions\&.
diff --git a/doc/man/pam_xauth_data.3.xml b/doc/man/pam_xauth_data.3.xml
deleted file mode 100644
index 505985e4..00000000
--- a/doc/man/pam_xauth_data.3.xml
+++ /dev/null
@@ -1,94 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
- "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
-
-<refentry id="pam_xauth_data">
-
- <refmeta>
- <refentrytitle>pam_xauth_data</refentrytitle>
- <manvolnum>3</manvolnum>
- <refmiscinfo class='setdesc'>Linux-PAM Manual</refmiscinfo>
- </refmeta>
-
- <refnamediv id="pam_xauth_data-name">
- <refname>pam_xauth_data</refname>
- <refpurpose>structure containing X authentication data</refpurpose>
- </refnamediv>
-
-<!-- body begins here -->
-
- <refsynopsisdiv>
- <funcsynopsis id="pam_xauth_data-synopsis">
- <funcsynopsisinfo>#include &lt;security/pam_appl.h&gt;</funcsynopsisinfo>
- </funcsynopsis>
- <programlisting>
-struct pam_xauth_data {
- int namelen;
- char *name;
- int datalen;
- char *data;
-};
- </programlisting>
- </refsynopsisdiv>
-
- <refsect1 id='pam_xauth_data-description'>
- <title>DESCRIPTION</title>
- <para>
- The <function>pam_xauth_data</function> structure contains X
- authentication data used to make a connection to an X display.
- Using this mechanism, an application can communicate X
- authentication data to PAM service modules. This allows modules to
- make a connection to the user's X display in order to label the
- user's session on login, display visual feedback or for other
- purposes.
- </para>
- <para>
- The <emphasis>name</emphasis> field contains the name of the
- authentication method, such as "MIT-MAGIC-COOKIE-1". The
- <emphasis>namelen</emphasis> field contains the length of this string,
- not including the trailing NUL character.
- </para>
- <para>
- The <emphasis>data</emphasis> field contains the authentication
- method-specific data corresponding to the specified name. The
- <emphasis>datalen</emphasis> field contains its length in bytes.
- </para>
- <para>
- The X authentication data can be changed with the
- <emphasis>PAM_XAUTH_DATA</emphasis> item. It can be queried and
- set with
- <citerefentry>
- <refentrytitle>pam_get_item</refentrytitle><manvolnum>3</manvolnum>
- </citerefentry>
- and
- <citerefentry>
- <refentrytitle>pam_set_item </refentrytitle><manvolnum>3</manvolnum>
- </citerefentry> respectively. The value used to set it should be
- a pointer to a pam_xauth_data structure. An internal copy of both
- the structure itself and its fields is made by PAM when setting the
- item.
- </para>
- </refsect1>
-
- <refsect1 id='pam_xauth_data-see_also'>
- <title>SEE ALSO</title>
- <para>
- <citerefentry>
- <refentrytitle>pam_start</refentrytitle><manvolnum>3</manvolnum>
- </citerefentry>,
- <citerefentry>
- <refentrytitle>pam_get_item</refentrytitle><manvolnum>3</manvolnum>
- </citerefentry>,
- </para>
- </refsect1>
-
- <refsect1 id='pam_xauth_data-standards'>
- <title>STANDARDS</title>
- <para>
- The <function>pam_xauth_data</function> structure and
- <emphasis>PAM_XAUTH_DATA</emphasis> item are
- Linux-PAM extensions.
- </para>
- </refsect1>
-
-</refentry>
diff --git a/doc/mwg/Makefile.in b/doc/mwg/Makefile.in
new file mode 100644
index 00000000..366f1bdc
--- /dev/null
+++ b/doc/mwg/Makefile.in
@@ -0,0 +1,601 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 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@
+
+#
+# Copyright (c) 2006 Thorsten Kukuk <kukuk@thkukuk.de>
+#
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+@ENABLE_GENERATE_PDF_TRUE@@ENABLE_REGENERATE_MAN_TRUE@ $(FO2PDF) Linux-PAM_SAG.fo $@
+@ENABLE_GENERATE_PDF_FALSE@@ENABLE_REGENERATE_MAN_TRUE@ echo "No fo2pdf processor installed, skip PDF generation"
+
+@ENABLE_REGENERATE_MAN_TRUE@Linux-PAM_SAG.txt: $(XMLS) $(DEP_XMLS)
+@ENABLE_REGENERATE_MAN_TRUE@ $(XMLLINT) --nonet --xinclude --postvalid --noent --noout $<
+@ENABLE_REGENERATE_MAN_TRUE@ $(XSLTPROC) --stringparam generate.toc "book toc" \
+@ENABLE_REGENERATE_MAN_TRUE@ --stringparam section.autolabel 1 \
+@ENABLE_REGENERATE_MAN_TRUE@ --stringparam section.label.includes.component.label 1 \
+@ENABLE_REGENERATE_MAN_TRUE@ --stringparam toc.max.depth 2 --xinclude --nonet \
+@ENABLE_REGENERATE_MAN_TRUE@ http://docbook.sourceforge.net/release/xsl/current/html/docbook.xsl $< | $(BROWSER) > $@
+
+@ENABLE_REGENERATE_MAN_TRUE@html/Linux-PAM_SAG.html: $(XMLS) $(DEP_XMLS)
+@ENABLE_REGENERATE_MAN_TRUE@ @test -d html || mkdir -p html
+@ENABLE_REGENERATE_MAN_TRUE@ $(XMLLINT) --nonet --xinclude --postvalid --noent --noout $<
+@ENABLE_REGENERATE_MAN_TRUE@ $(XSLTPROC) --stringparam base.dir html/ \
+@ENABLE_REGENERATE_MAN_TRUE@ --stringparam root.filename Linux-PAM_SAG \
+@ENABLE_REGENERATE_MAN_TRUE@ --stringparam use.id.as.filename 1 \
+@ENABLE_REGENERATE_MAN_TRUE@ --stringparam chunk.first.sections 1 \
+@ENABLE_REGENERATE_MAN_TRUE@ --stringparam section.autolabel 1 \
+@ENABLE_REGENERATE_MAN_TRUE@ --stringparam section.label.includes.component.label 1 \
+@ENABLE_REGENERATE_MAN_TRUE@ --stringparam toc.max.depth 2 --xinclude --nonet \
+@ENABLE_REGENERATE_MAN_TRUE@ --stringparam chunker.output.encoding UTF-8 \
+@ENABLE_REGENERATE_MAN_TRUE@ http://docbook.sourceforge.net/release/xsl/current/html/chunk.xsl $<
+
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+ $(mkinstalldirs) $(DESTDIR)$(pdfdir)
+ $(mkinstalldirs) $(DESTDIR)$(htmldir)
+ if test -f html/Linux-PAM_SAG.html; then \
+ $(install_sh_DATA) html/Linux-PAM_SAG.html html/sag-*.html \
+ $(DESTDIR)$(htmldir)/; \
+ elif test -f $(srcdir)/html/Linux-PAM_SAG.html; then \
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+ $(srcdir)/html/sag-*.html \
+ $(DESTDIR)$(htmldir)/; \
+ fi
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+ fi
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+ $(install_sh_DATA) $(srcdir)/Linux-PAM_SAG.pdf \
+ $(DESTDIR)$(pdfdir)/; \
+ fi
+
+uninstall-local:
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+ -rm $(DESTDIR)$(htmldir)/sag-*.html
+ -rm $(DESTDIR)$(docdir)/Linux-PAM_SAG.txt
+ -rm $(DESTDIR)$(pdfdir)/Linux-PAM_SAG.pdf
+
+releasedocs: all
+ $(mkinstalldirs) $(top_builddir)/Linux-PAM-$(VERSION)/doc/sag/html
+ if test -f html/Linux-PAM_SAG.html; then \
+ cp -ap html/Linux-PAM_SAG.html html/sag-*.html \
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+ $(top_builddir)/Linux-PAM-$(VERSION)/doc/sag/html/; \
+ else exit 1; \
+ fi
+ if test -f Linux-PAM_SAG.txt; then \
+ cp -p Linux-PAM_SAG.txt \
+ $(top_builddir)/Linux-PAM-$(VERSION)/doc/sag/; \
+ elif test -f $(srcdir)/Linux-PAM_SAG.txt; then \
+ cp -p $(srcdir)/Linux-PAM_SAG.txt \
+ $(top_builddir)/Linux-PAM-$(VERSION)/doc/sag/; \
+ else exit 1; \
+ fi
+ if test -f Linux-PAM_SAG.pdf; then \
+ cp -p Linux-PAM_SAG.pdf \
+ $(top_builddir)/Linux-PAM-$(VERSION)/doc/sag/; \
+ elif test -f $(srcdir)/Linux-PAM_SAG.pdf; then \
+ cp -p $(srcdir)/Linux-PAM_SAG.pdf \
+ $(top_builddir)/Linux-PAM-$(VERSION)/doc/sag/; \
+ else exit 1; \
+ fi
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diff --git a/doc/specs/.gitignore b/doc/specs/.gitignore
deleted file mode 100644
index 52a7fb44..00000000
--- a/doc/specs/.gitignore
+++ /dev/null
@@ -1,6 +0,0 @@
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-padout
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-parse_y.c
-parse_y.h
diff --git a/doc/specs/Makefile.in b/doc/specs/Makefile.in
new file mode 100644
index 00000000..50045fd1
--- /dev/null
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+padout_SOURCES = parse_l.l parse_y.y
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+ $(MAKE) $(AM_MAKEFLAGS) all-am
+
+.SUFFIXES:
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+ rm -f $$list || exit $$?; \
+ test -n "$(EXEEXT)" || exit 0; \
+ list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \
+ echo " rm -f" $$list; \
+ rm -f $$list
+parse_y.h: parse_y.c
+ @if test ! -f $@; then rm -f parse_y.c; else :; fi
+ @if test ! -f $@; then $(MAKE) $(AM_MAKEFLAGS) parse_y.c; else :; fi
+
+padout$(EXEEXT): $(padout_OBJECTS) $(padout_DEPENDENCIES) $(EXTRA_padout_DEPENDENCIES)
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+mostlyclean-compile:
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+distclean-compile:
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+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/parse_l.Po@am__quote@
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+@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
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+ @$(NORMAL_INSTALL)
+ @list='$(doc_DATA)'; test -n "$(docdir)" || list=; \
+ if test -n "$$list"; then \
+ echo " $(MKDIR_P) '$(DESTDIR)$(docdir)'"; \
+ $(MKDIR_P) "$(DESTDIR)$(docdir)" || exit 1; \
+ fi; \
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+ if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
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+ done | $(am__base_list) | \
+ while read files; do \
+ echo " $(INSTALL_DATA) $$files '$(DESTDIR)$(docdir)'"; \
+ $(INSTALL_DATA) $$files "$(DESTDIR)$(docdir)" || exit $$?; \
+ done
+
+uninstall-docDATA:
+ @$(NORMAL_UNINSTALL)
+ @list='$(doc_DATA)'; test -n "$(docdir)" || list=; \
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+ID: $(am__tagged_files)
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+ else \
+ echo "$$sdir/$$i"; \
+ fi; \
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+distdir: $(DISTFILES)
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+install-am: all-am
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+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
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+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
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+ "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+ fi
+mostlyclean-generic:
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+clean-generic:
+ -test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
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+ -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+ -rm -f parse_l.c
+ -rm -f parse_y.c
+ -rm -f parse_y.h
+ -test -z "$(BUILT_SOURCES)" || rm -f $(BUILT_SOURCES)
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-noinstPROGRAMS \
+ mostlyclean-am
+
+distclean: distclean-am
+ -rm -rf ./$(DEPDIR)
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+ distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
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+install-data-am: install-docDATA
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
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+install-info: install-info-am
+
+install-info-am:
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+install-pdf-am:
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+ -rm -rf ./$(DEPDIR)
+ -rm -f Makefile
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+ mostlyclean-libtool
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+.MAKE: all check install install-am install-strip
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+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+ clean-libtool clean-noinstPROGRAMS cscopelist-am ctags \
+ ctags-am distclean distclean-compile distclean-generic \
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+ html-am info info-am install install-am install-data \
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+ install-info install-info-am install-man install-pdf \
+ install-pdf-am install-ps install-ps-am install-strip \
+ installcheck installcheck-am installdirs maintainer-clean \
+ maintainer-clean-generic mostlyclean mostlyclean-compile \
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+ tags tags-am uninstall uninstall-am uninstall-docDATA
+
+
+draft-morgan-pam-current.txt: padout draft-morgan-pam.raw
+ ./padout < $(srcdir)/draft-morgan-pam.raw > draft-morgan-pam-current.txt
+
+# 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/doc/specs/formatter/.gitignore b/doc/specs/formatter/.gitignore
deleted file mode 100644
index fdb57932..00000000
--- a/doc/specs/formatter/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-parse.tab.c
-padout
diff --git a/doc/specs/parse_l.c b/doc/specs/parse_l.c
new file mode 100644
index 00000000..abdf89ee
--- /dev/null
+++ b/doc/specs/parse_l.c
@@ -0,0 +1,1778 @@
+
+#line 3 "parse_l.c"
+
+#define YY_INT_ALIGNED short int
+
+/* A lexical scanner generated by flex */
+
+#define FLEX_SCANNER
+#define YY_FLEX_MAJOR_VERSION 2
+#define YY_FLEX_MINOR_VERSION 5
+#define YY_FLEX_SUBMINOR_VERSION 37
+#if YY_FLEX_SUBMINOR_VERSION > 0
+#define FLEX_BETA
+#endif
+
+/* First, we deal with platform-specific or compiler-specific issues. */
+
+/* begin standard C headers. */
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <stdlib.h>
+
+/* end standard C headers. */
+
+/* flex integer type definitions */
+
+#ifndef FLEXINT_H
+#define FLEXINT_H
+
+/* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */
+
+#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+
+/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h,
+ * if you want the limit (max/min) macros for int types.
+ */
+#ifndef __STDC_LIMIT_MACROS
+#define __STDC_LIMIT_MACROS 1
+#endif
+
+#include <inttypes.h>
+typedef int8_t flex_int8_t;
+typedef uint8_t flex_uint8_t;
+typedef int16_t flex_int16_t;
+typedef uint16_t flex_uint16_t;
+typedef int32_t flex_int32_t;
+typedef uint32_t flex_uint32_t;
+#else
+typedef signed char flex_int8_t;
+typedef short int flex_int16_t;
+typedef int flex_int32_t;
+typedef unsigned char flex_uint8_t;
+typedef unsigned short int flex_uint16_t;
+typedef unsigned int flex_uint32_t;
+
+/* Limits of integral types. */
+#ifndef INT8_MIN
+#define INT8_MIN (-128)
+#endif
+#ifndef INT16_MIN
+#define INT16_MIN (-32767-1)
+#endif
+#ifndef INT32_MIN
+#define INT32_MIN (-2147483647-1)
+#endif
+#ifndef INT8_MAX
+#define INT8_MAX (127)
+#endif
+#ifndef INT16_MAX
+#define INT16_MAX (32767)
+#endif
+#ifndef INT32_MAX
+#define INT32_MAX (2147483647)
+#endif
+#ifndef UINT8_MAX
+#define UINT8_MAX (255U)
+#endif
+#ifndef UINT16_MAX
+#define UINT16_MAX (65535U)
+#endif
+#ifndef UINT32_MAX
+#define UINT32_MAX (4294967295U)
+#endif
+
+#endif /* ! C99 */
+
+#endif /* ! FLEXINT_H */
+
+#ifdef __cplusplus
+
+/* The "const" storage-class-modifier is valid. */
+#define YY_USE_CONST
+
+#else /* ! __cplusplus */
+
+/* C99 requires __STDC__ to be defined as 1. */
+#if defined (__STDC__)
+
+#define YY_USE_CONST
+
+#endif /* defined (__STDC__) */
+#endif /* ! __cplusplus */
+
+#ifdef YY_USE_CONST
+#define yyconst const
+#else
+#define yyconst
+#endif
+
+/* Returned upon end-of-file. */
+#define YY_NULL 0
+
+/* Promotes a possibly negative, possibly signed char to an unsigned
+ * integer for use as an array index. If the signed char is negative,
+ * we want to instead treat it as an 8-bit unsigned char, hence the
+ * double cast.
+ */
+#define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c)
+
+/* Enter a start condition. This macro really ought to take a parameter,
+ * but we do it the disgusting crufty way forced on us by the ()-less
+ * definition of BEGIN.
+ */
+#define BEGIN (yy_start) = 1 + 2 *
+
+/* Translate the current start state into a value that can be later handed
+ * to BEGIN to return to the state. The YYSTATE alias is for lex
+ * compatibility.
+ */
+#define YY_START (((yy_start) - 1) / 2)
+#define YYSTATE YY_START
+
+/* Action number for EOF rule of a given start state. */
+#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1)
+
+/* Special action meaning "start processing a new file". */
+#define YY_NEW_FILE yyrestart(yyin )
+
+#define YY_END_OF_BUFFER_CHAR 0
+
+/* Size of default input buffer. */
+#ifndef YY_BUF_SIZE
+#define YY_BUF_SIZE 16384
+#endif
+
+/* The state buf must be large enough to hold one state per character in the main buffer.
+ */
+#define YY_STATE_BUF_SIZE ((YY_BUF_SIZE + 2) * sizeof(yy_state_type))
+
+#ifndef YY_TYPEDEF_YY_BUFFER_STATE
+#define YY_TYPEDEF_YY_BUFFER_STATE
+typedef struct yy_buffer_state *YY_BUFFER_STATE;
+#endif
+
+#ifndef YY_TYPEDEF_YY_SIZE_T
+#define YY_TYPEDEF_YY_SIZE_T
+typedef size_t yy_size_t;
+#endif
+
+extern yy_size_t yyleng;
+
+extern FILE *yyin, *yyout;
+
+#define EOB_ACT_CONTINUE_SCAN 0
+#define EOB_ACT_END_OF_FILE 1
+#define EOB_ACT_LAST_MATCH 2
+
+ #define YY_LESS_LINENO(n)
+
+/* Return all but the first "n" matched characters back to the input stream. */
+#define yyless(n) \
+ do \
+ { \
+ /* Undo effects of setting up yytext. */ \
+ int yyless_macro_arg = (n); \
+ YY_LESS_LINENO(yyless_macro_arg);\
+ *yy_cp = (yy_hold_char); \
+ YY_RESTORE_YY_MORE_OFFSET \
+ (yy_c_buf_p) = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \
+ YY_DO_BEFORE_ACTION; /* set up yytext again */ \
+ } \
+ while ( 0 )
+
+#define unput(c) yyunput( c, (yytext_ptr) )
+
+#ifndef YY_STRUCT_YY_BUFFER_STATE
+#define YY_STRUCT_YY_BUFFER_STATE
+struct yy_buffer_state
+ {
+ FILE *yy_input_file;
+
+ char *yy_ch_buf; /* input buffer */
+ char *yy_buf_pos; /* current position in input buffer */
+
+ /* Size of input buffer in bytes, not including room for EOB
+ * characters.
+ */
+ int yy_buf_size;
+
+ /* Number of characters read into yy_ch_buf, not including EOB
+ * characters.
+ */
+ int yy_n_chars;
+
+ /* Whether we "own" the buffer - i.e., we know we created it,
+ * and can realloc() it to grow it, and should free() it to
+ * delete it.
+ */
+ int yy_is_our_buffer;
+
+ /* Whether this is an "interactive" input source; if so, and
+ * if we're using stdio for input, then we want to use getc()
+ * instead of fread(), to make sure we stop fetching input after
+ * each newline.
+ */
+ int yy_is_interactive;
+
+ /* Whether we're considered to be at the beginning of a line.
+ * If so, '^' rules will be active on the next match, otherwise
+ * not.
+ */
+ int yy_at_bol;
+
+ int yy_bs_lineno; /**< The line count. */
+ int yy_bs_column; /**< The column count. */
+
+ /* Whether to try to fill the input buffer when we reach the
+ * end of it.
+ */
+ int yy_fill_buffer;
+
+ int yy_buffer_status;
+
+#define YY_BUFFER_NEW 0
+#define YY_BUFFER_NORMAL 1
+ /* When an EOF's been seen but there's still some text to process
+ * then we mark the buffer as YY_EOF_PENDING, to indicate that we
+ * shouldn't try reading from the input source any more. We might
+ * still have a bunch of tokens to match, though, because of
+ * possible backing-up.
+ *
+ * When we actually see the EOF, we change the status to "new"
+ * (via yyrestart()), so that the user can continue scanning by
+ * just pointing yyin at a new input file.
+ */
+#define YY_BUFFER_EOF_PENDING 2
+
+ };
+#endif /* !YY_STRUCT_YY_BUFFER_STATE */
+
+/* Stack of input buffers. */
+static size_t yy_buffer_stack_top = 0; /**< index of top of stack. */
+static size_t yy_buffer_stack_max = 0; /**< capacity of stack. */
+static YY_BUFFER_STATE * yy_buffer_stack = 0; /**< Stack as an array. */
+
+/* We provide macros for accessing buffer states in case in the
+ * future we want to put the buffer states in a more general
+ * "scanner state".
+ *
+ * Returns the top of the stack, or NULL.
+ */
+#define YY_CURRENT_BUFFER ( (yy_buffer_stack) \
+ ? (yy_buffer_stack)[(yy_buffer_stack_top)] \
+ : NULL)
+
+/* Same as previous macro, but useful when we know that the buffer stack is not
+ * NULL or when we need an lvalue. For internal use only.
+ */
+#define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)]
+
+/* yy_hold_char holds the character lost when yytext is formed. */
+static char yy_hold_char;
+static int yy_n_chars; /* number of characters read into yy_ch_buf */
+yy_size_t yyleng;
+
+/* Points to current character in buffer. */
+static char *yy_c_buf_p = (char *) 0;
+static int yy_init = 0; /* whether we need to initialize */
+static int yy_start = 0; /* start state number */
+
+/* Flag which is used to allow yywrap()'s to do buffer switches
+ * instead of setting up a fresh yyin. A bit of a hack ...
+ */
+static int yy_did_buffer_switch_on_eof;
+
+void yyrestart (FILE *input_file );
+void yy_switch_to_buffer (YY_BUFFER_STATE new_buffer );
+YY_BUFFER_STATE yy_create_buffer (FILE *file,int size );
+void yy_delete_buffer (YY_BUFFER_STATE b );
+void yy_flush_buffer (YY_BUFFER_STATE b );
+void yypush_buffer_state (YY_BUFFER_STATE new_buffer );
+void yypop_buffer_state (void );
+
+static void yyensure_buffer_stack (void );
+static void yy_load_buffer_state (void );
+static void yy_init_buffer (YY_BUFFER_STATE b,FILE *file );
+
+#define YY_FLUSH_BUFFER yy_flush_buffer(YY_CURRENT_BUFFER )
+
+YY_BUFFER_STATE yy_scan_buffer (char *base,yy_size_t size );
+YY_BUFFER_STATE yy_scan_string (yyconst char *yy_str );
+YY_BUFFER_STATE yy_scan_bytes (yyconst char *bytes,yy_size_t len );
+
+void *yyalloc (yy_size_t );
+void *yyrealloc (void *,yy_size_t );
+void yyfree (void * );
+
+#define yy_new_buffer yy_create_buffer
+
+#define yy_set_interactive(is_interactive) \
+ { \
+ if ( ! YY_CURRENT_BUFFER ){ \
+ yyensure_buffer_stack (); \
+ YY_CURRENT_BUFFER_LVALUE = \
+ yy_create_buffer(yyin,YY_BUF_SIZE ); \
+ } \
+ YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \
+ }
+
+#define yy_set_bol(at_bol) \
+ { \
+ if ( ! YY_CURRENT_BUFFER ){\
+ yyensure_buffer_stack (); \
+ YY_CURRENT_BUFFER_LVALUE = \
+ yy_create_buffer(yyin,YY_BUF_SIZE ); \
+ } \
+ YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \
+ }
+
+#define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol)
+
+/* Begin user sect3 */
+
+#define yywrap() 1
+#define YY_SKIP_YYWRAP
+
+typedef unsigned char YY_CHAR;
+
+FILE *yyin = (FILE *) 0, *yyout = (FILE *) 0;
+
+typedef int yy_state_type;
+
+extern int yylineno;
+
+int yylineno = 1;
+
+extern char *yytext;
+#define yytext_ptr yytext
+
+static yy_state_type yy_get_previous_state (void );
+static yy_state_type yy_try_NUL_trans (yy_state_type current_state );
+static int yy_get_next_buffer (void );
+static void yy_fatal_error (yyconst char msg[] );
+
+/* Done after the current pattern has been matched and before the
+ * corresponding action - sets up yytext.
+ */
+#define YY_DO_BEFORE_ACTION \
+ (yytext_ptr) = yy_bp; \
+ yyleng = (int) (yy_cp - yy_bp); \
+ (yy_hold_char) = *yy_cp; \
+ *yy_cp = '\0'; \
+ (yy_c_buf_p) = yy_cp;
+
+#define YY_NUM_RULES 8
+#define YY_END_OF_BUFFER 9
+/* This struct is not used in this scanner,
+ but its presence is necessary. */
+struct yy_trans_info
+ {
+ flex_int32_t yy_verify;
+ flex_int32_t yy_nxt;
+ };
+static yyconst flex_int16_t yy_accept[19] =
+ { 0,
+ 0, 0, 9, 6, 7, 3, 6, 4, 1, 0,
+ 5, 0, 1, 0, 1, 0, 2, 0
+ } ;
+
+static yyconst flex_int32_t yy_ec[256] =
+ { 0,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 2,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 3, 4, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 5, 5, 5,
+ 5, 5, 5, 5, 5, 5, 5, 1, 1, 1,
+ 6, 1, 1, 1, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 1, 8, 1, 1, 9, 1, 7, 7, 7, 7,
+
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 10, 1, 11, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1
+ } ;
+
+static yyconst flex_int32_t yy_meta[12] =
+ { 0,
+ 1, 1, 1, 1, 2, 1, 2, 1, 2, 1,
+ 2
+ } ;
+
+static yyconst flex_int16_t yy_base[21] =
+ { 0,
+ 0, 7, 21, 30, 30, 13, 17, 30, 20, 12,
+ 30, 13, 10, 2, 7, 0, 30, 30, 27, 2
+ } ;
+
+static yyconst flex_int16_t yy_def[21] =
+ { 0,
+ 19, 19, 18, 18, 18, 18, 18, 18, 18, 18,
+ 18, 18, 9, 20, 18, 20, 18, 0, 18, 18
+ } ;
+
+static yyconst flex_int16_t yy_nxt[42] =
+ { 0,
+ 18, 5, 6, 16, 18, 18, 18, 7, 5, 6,
+ 17, 15, 17, 18, 7, 8, 9, 15, 14, 11,
+ 18, 18, 10, 9, 18, 12, 13, 4, 4, 3,
+ 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
+ 18
+ } ;
+
+static yyconst flex_int16_t yy_chk[42] =
+ { 0,
+ 0, 1, 1, 20, 0, 0, 0, 1, 2, 2,
+ 16, 15, 14, 13, 2, 6, 6, 12, 10, 7,
+ 3, 0, 6, 9, 0, 9, 9, 19, 19, 18,
+ 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
+ 18
+ } ;
+
+static yy_state_type yy_last_accepting_state;
+static char *yy_last_accepting_cpos;
+
+extern int yy_flex_debug;
+int yy_flex_debug = 0;
+
+/* The intent behind this definition is that it'll catch
+ * any uses of REJECT which flex missed.
+ */
+#define REJECT reject_used_but_not_detected
+#define yymore() yymore_used_but_not_detected
+#define YY_MORE_ADJ 0
+#define YY_RESTORE_YY_MORE_OFFSET
+char *yytext;
+#line 1 "parse_l.l"
+#line 2 "parse_l.l"
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+
+#include "parse_y.h"
+#line 473 "parse_l.c"
+
+#define INITIAL 0
+
+#ifndef YY_NO_UNISTD_H
+/* Special case for "unistd.h", since it is non-ANSI. We include it way
+ * down here because we want the user's section 1 to have been scanned first.
+ * The user has a chance to override it with an option.
+ */
+#include <unistd.h>
+#endif
+
+#ifndef YY_EXTRA_TYPE
+#define YY_EXTRA_TYPE void *
+#endif
+
+static int yy_init_globals (void );
+
+/* Accessor methods to globals.
+ These are made visible to non-reentrant scanners for convenience. */
+
+int yylex_destroy (void );
+
+int yyget_debug (void );
+
+void yyset_debug (int debug_flag );
+
+YY_EXTRA_TYPE yyget_extra (void );
+
+void yyset_extra (YY_EXTRA_TYPE user_defined );
+
+FILE *yyget_in (void );
+
+void yyset_in (FILE * in_str );
+
+FILE *yyget_out (void );
+
+void yyset_out (FILE * out_str );
+
+yy_size_t yyget_leng (void );
+
+char *yyget_text (void );
+
+int yyget_lineno (void );
+
+void yyset_lineno (int line_number );
+
+/* Macros after this point can all be overridden by user definitions in
+ * section 1.
+ */
+
+#ifndef YY_SKIP_YYWRAP
+#ifdef __cplusplus
+extern "C" int yywrap (void );
+#else
+extern int yywrap (void );
+#endif
+#endif
+
+ static void yyunput (int c,char *buf_ptr );
+
+#ifndef yytext_ptr
+static void yy_flex_strncpy (char *,yyconst char *,int );
+#endif
+
+#ifdef YY_NEED_STRLEN
+static int yy_flex_strlen (yyconst char * );
+#endif
+
+#ifndef YY_NO_INPUT
+
+#ifdef __cplusplus
+static int yyinput (void );
+#else
+static int input (void );
+#endif
+
+#endif
+
+/* Amount of stuff to slurp up with each read. */
+#ifndef YY_READ_BUF_SIZE
+#define YY_READ_BUF_SIZE 8192
+#endif
+
+/* Copy whatever the last rule matched to the standard output. */
+#ifndef ECHO
+/* This used to be an fputs(), but since the string might contain NUL's,
+ * we now use fwrite().
+ */
+#define ECHO do { if (fwrite( yytext, yyleng, 1, yyout )) {} } while (0)
+#endif
+
+/* Gets input and stuffs it into "buf". number of characters read, or YY_NULL,
+ * is returned in "result".
+ */
+#ifndef YY_INPUT
+#define YY_INPUT(buf,result,max_size) \
+ if ( YY_CURRENT_BUFFER_LVALUE->yy_is_interactive ) \
+ { \
+ int c = '*'; \
+ size_t n; \
+ for ( n = 0; n < max_size && \
+ (c = getc( yyin )) != EOF && c != '\n'; ++n ) \
+ buf[n] = (char) c; \
+ if ( c == '\n' ) \
+ buf[n++] = (char) c; \
+ if ( c == EOF && ferror( yyin ) ) \
+ YY_FATAL_ERROR( "input in flex scanner failed" ); \
+ result = n; \
+ } \
+ else \
+ { \
+ errno=0; \
+ while ( (result = (int) fread(buf, 1, max_size, yyin))==0 && ferror(yyin)) \
+ { \
+ if( errno != EINTR) \
+ { \
+ YY_FATAL_ERROR( "input in flex scanner failed" ); \
+ break; \
+ } \
+ errno=0; \
+ clearerr(yyin); \
+ } \
+ }\
+\
+
+#endif
+
+/* No semi-colon after return; correct usage is to write "yyterminate();" -
+ * we don't want an extra ';' after the "return" because that will cause
+ * some compilers to complain about unreachable statements.
+ */
+#ifndef yyterminate
+#define yyterminate() return YY_NULL
+#endif
+
+/* Number of entries by which start-condition stack grows. */
+#ifndef YY_START_STACK_INCR
+#define YY_START_STACK_INCR 25
+#endif
+
+/* Report a fatal error. */
+#ifndef YY_FATAL_ERROR
+#define YY_FATAL_ERROR(msg) yy_fatal_error( msg )
+#endif
+
+/* end tables serialization structures and prototypes */
+
+/* Default declaration of generated scanner - a define so the user can
+ * easily add parameters.
+ */
+#ifndef YY_DECL
+#define YY_DECL_IS_OURS 1
+
+extern int yylex (void);
+
+#define YY_DECL int yylex (void)
+#endif /* !YY_DECL */
+
+/* Code executed at the beginning of each rule, after yytext and yyleng
+ * have been set up.
+ */
+#ifndef YY_USER_ACTION
+#define YY_USER_ACTION
+#endif
+
+/* Code executed at the end of each rule. */
+#ifndef YY_BREAK
+#define YY_BREAK break;
+#endif
+
+#define YY_RULE_SETUP \
+ YY_USER_ACTION
+
+/** The main scanner function which does all the work.
+ */
+YY_DECL
+{
+ register yy_state_type yy_current_state;
+ register char *yy_cp, *yy_bp;
+ register int yy_act;
+
+#line 12 "parse_l.l"
+
+
+#line 658 "parse_l.c"
+
+ if ( !(yy_init) )
+ {
+ (yy_init) = 1;
+
+#ifdef YY_USER_INIT
+ YY_USER_INIT;
+#endif
+
+ if ( ! (yy_start) )
+ (yy_start) = 1; /* first start state */
+
+ if ( ! yyin )
+ yyin = stdin;
+
+ if ( ! yyout )
+ yyout = stdout;
+
+ if ( ! YY_CURRENT_BUFFER ) {
+ yyensure_buffer_stack ();
+ YY_CURRENT_BUFFER_LVALUE =
+ yy_create_buffer(yyin,YY_BUF_SIZE );
+ }
+
+ yy_load_buffer_state( );
+ }
+
+ while ( 1 ) /* loops until end-of-file is reached */
+ {
+ yy_cp = (yy_c_buf_p);
+
+ /* Support of yytext. */
+ *yy_cp = (yy_hold_char);
+
+ /* yy_bp points to the position in yy_ch_buf of the start of
+ * the current run.
+ */
+ yy_bp = yy_cp;
+
+ yy_current_state = (yy_start);
+yy_match:
+ do
+ {
+ register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)];
+ if ( yy_accept[yy_current_state] )
+ {
+ (yy_last_accepting_state) = yy_current_state;
+ (yy_last_accepting_cpos) = yy_cp;
+ }
+ while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
+ {
+ yy_current_state = (int) yy_def[yy_current_state];
+ if ( yy_current_state >= 19 )
+ yy_c = yy_meta[(unsigned int) yy_c];
+ }
+ yy_current_state = yy_nxt[yy_base[yy_current_state] + (flex_int16_t) yy_c];
+ ++yy_cp;
+ }
+ while ( yy_base[yy_current_state] != 30 );
+
+yy_find_action:
+ yy_act = yy_accept[yy_current_state];
+ if ( yy_act == 0 )
+ { /* have to back up */
+ yy_cp = (yy_last_accepting_cpos);
+ yy_current_state = (yy_last_accepting_state);
+ yy_act = yy_accept[yy_current_state];
+ }
+
+ YY_DO_BEFORE_ACTION;
+
+do_action: /* This label is used only to access EOF actions. */
+
+ switch ( yy_act )
+ { /* beginning of action switch */
+ case 0: /* must back up */
+ /* undo the effects of YY_DO_BEFORE_ACTION */
+ *yy_cp = (yy_hold_char);
+ yy_cp = (yy_last_accepting_cpos);
+ yy_current_state = (yy_last_accepting_state);
+ goto yy_find_action;
+
+case 1:
+YY_RULE_SETUP
+#line 14 "parse_l.l"
+return NEW_COUNTER;
+ YY_BREAK
+case 2:
+YY_RULE_SETUP
+#line 15 "parse_l.l"
+return LABEL;
+ YY_BREAK
+case 3:
+YY_RULE_SETUP
+#line 16 "parse_l.l"
+return NO_INDENT;
+ YY_BREAK
+case 4:
+YY_RULE_SETUP
+#line 17 "parse_l.l"
+return RIGHT;
+ YY_BREAK
+case 5:
+YY_RULE_SETUP
+#line 18 "parse_l.l"
+return HASH;
+ YY_BREAK
+case 6:
+YY_RULE_SETUP
+#line 19 "parse_l.l"
+return CHAR;
+ YY_BREAK
+case 7:
+/* rule 7 can match eol */
+YY_RULE_SETUP
+#line 20 "parse_l.l"
+return NEWLINE;
+ YY_BREAK
+case 8:
+YY_RULE_SETUP
+#line 22 "parse_l.l"
+ECHO;
+ YY_BREAK
+#line 782 "parse_l.c"
+case YY_STATE_EOF(INITIAL):
+ yyterminate();
+
+ case YY_END_OF_BUFFER:
+ {
+ /* Amount of text matched not including the EOB char. */
+ int yy_amount_of_matched_text = (int) (yy_cp - (yytext_ptr)) - 1;
+
+ /* Undo the effects of YY_DO_BEFORE_ACTION. */
+ *yy_cp = (yy_hold_char);
+ YY_RESTORE_YY_MORE_OFFSET
+
+ if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW )
+ {
+ /* We're scanning a new file or input source. It's
+ * possible that this happened because the user
+ * just pointed yyin at a new source and called
+ * yylex(). If so, then we have to assure
+ * consistency between YY_CURRENT_BUFFER and our
+ * globals. Here is the right place to do so, because
+ * this is the first action (other than possibly a
+ * back-up) that will match for the new input source.
+ */
+ (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
+ YY_CURRENT_BUFFER_LVALUE->yy_input_file = yyin;
+ YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_NORMAL;
+ }
+
+ /* Note that here we test for yy_c_buf_p "<=" to the position
+ * of the first EOB in the buffer, since yy_c_buf_p will
+ * already have been incremented past the NUL character
+ * (since all states make transitions on EOB to the
+ * end-of-buffer state). Contrast this with the test
+ * in input().
+ */
+ if ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
+ { /* This was really a NUL. */
+ yy_state_type yy_next_state;
+
+ (yy_c_buf_p) = (yytext_ptr) + yy_amount_of_matched_text;
+
+ yy_current_state = yy_get_previous_state( );
+
+ /* Okay, we're now positioned to make the NUL
+ * transition. We couldn't have
+ * yy_get_previous_state() go ahead and do it
+ * for us because it doesn't know how to deal
+ * with the possibility of jamming (and we don't
+ * want to build jamming into it because then it
+ * will run more slowly).
+ */
+
+ yy_next_state = yy_try_NUL_trans( yy_current_state );
+
+ yy_bp = (yytext_ptr) + YY_MORE_ADJ;
+
+ if ( yy_next_state )
+ {
+ /* Consume the NUL. */
+ yy_cp = ++(yy_c_buf_p);
+ yy_current_state = yy_next_state;
+ goto yy_match;
+ }
+
+ else
+ {
+ yy_cp = (yy_c_buf_p);
+ goto yy_find_action;
+ }
+ }
+
+ else switch ( yy_get_next_buffer( ) )
+ {
+ case EOB_ACT_END_OF_FILE:
+ {
+ (yy_did_buffer_switch_on_eof) = 0;
+
+ if ( yywrap( ) )
+ {
+ /* Note: because we've taken care in
+ * yy_get_next_buffer() to have set up
+ * yytext, we can now set up
+ * yy_c_buf_p so that if some total
+ * hoser (like flex itself) wants to
+ * call the scanner after we return the
+ * YY_NULL, it'll still work - another
+ * YY_NULL will get returned.
+ */
+ (yy_c_buf_p) = (yytext_ptr) + YY_MORE_ADJ;
+
+ yy_act = YY_STATE_EOF(YY_START);
+ goto do_action;
+ }
+
+ else
+ {
+ if ( ! (yy_did_buffer_switch_on_eof) )
+ YY_NEW_FILE;
+ }
+ break;
+ }
+
+ case EOB_ACT_CONTINUE_SCAN:
+ (yy_c_buf_p) =
+ (yytext_ptr) + yy_amount_of_matched_text;
+
+ yy_current_state = yy_get_previous_state( );
+
+ yy_cp = (yy_c_buf_p);
+ yy_bp = (yytext_ptr) + YY_MORE_ADJ;
+ goto yy_match;
+
+ case EOB_ACT_LAST_MATCH:
+ (yy_c_buf_p) =
+ &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)];
+
+ yy_current_state = yy_get_previous_state( );
+
+ yy_cp = (yy_c_buf_p);
+ yy_bp = (yytext_ptr) + YY_MORE_ADJ;
+ goto yy_find_action;
+ }
+ break;
+ }
+
+ default:
+ YY_FATAL_ERROR(
+ "fatal flex scanner internal error--no action found" );
+ } /* end of action switch */
+ } /* end of scanning one token */
+} /* end of yylex */
+
+/* yy_get_next_buffer - try to read in a new buffer
+ *
+ * Returns a code representing an action:
+ * EOB_ACT_LAST_MATCH -
+ * EOB_ACT_CONTINUE_SCAN - continue scanning from current position
+ * EOB_ACT_END_OF_FILE - end of file
+ */
+static int yy_get_next_buffer (void)
+{
+ register char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf;
+ register char *source = (yytext_ptr);
+ register int number_to_move, i;
+ int ret_val;
+
+ if ( (yy_c_buf_p) > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] )
+ YY_FATAL_ERROR(
+ "fatal flex scanner internal error--end of buffer missed" );
+
+ if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 )
+ { /* Don't try to fill the buffer, so this is an EOF. */
+ if ( (yy_c_buf_p) - (yytext_ptr) - YY_MORE_ADJ == 1 )
+ {
+ /* We matched a single character, the EOB, so
+ * treat this as a final EOF.
+ */
+ return EOB_ACT_END_OF_FILE;
+ }
+
+ else
+ {
+ /* We matched some text prior to the EOB, first
+ * process it.
+ */
+ return EOB_ACT_LAST_MATCH;
+ }
+ }
+
+ /* Try to read more data. */
+
+ /* First move last chars to start of buffer. */
+ number_to_move = (int) ((yy_c_buf_p) - (yytext_ptr)) - 1;
+
+ for ( i = 0; i < number_to_move; ++i )
+ *(dest++) = *(source++);
+
+ if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING )
+ /* don't do the read, it's not guaranteed to return an EOF,
+ * just force an EOF
+ */
+ YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars) = 0;
+
+ else
+ {
+ int num_to_read =
+ YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1;
+
+ while ( num_to_read <= 0 )
+ { /* Not enough room in the buffer - grow it. */
+
+ /* just a shorter name for the current buffer */
+ YY_BUFFER_STATE b = YY_CURRENT_BUFFER_LVALUE;
+
+ int yy_c_buf_p_offset =
+ (int) ((yy_c_buf_p) - b->yy_ch_buf);
+
+ if ( b->yy_is_our_buffer )
+ {
+ yy_size_t new_size = b->yy_buf_size * 2;
+
+ if ( new_size <= 0 )
+ b->yy_buf_size += b->yy_buf_size / 8;
+ else
+ b->yy_buf_size *= 2;
+
+ b->yy_ch_buf = (char *)
+ /* Include room in for 2 EOB chars. */
+ yyrealloc((void *) b->yy_ch_buf,b->yy_buf_size + 2 );
+ }
+ else
+ /* Can't grow it, we don't own it. */
+ b->yy_ch_buf = 0;
+
+ if ( ! b->yy_ch_buf )
+ YY_FATAL_ERROR(
+ "fatal error - scanner input buffer overflow" );
+
+ (yy_c_buf_p) = &b->yy_ch_buf[yy_c_buf_p_offset];
+
+ num_to_read = (int) YY_CURRENT_BUFFER_LVALUE->yy_buf_size -
+ number_to_move - 1;
+
+ }
+
+ if ( num_to_read > YY_READ_BUF_SIZE )
+ num_to_read = YY_READ_BUF_SIZE;
+
+ /* Read in more data. */
+ YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]),
+ (yy_n_chars), num_to_read );
+
+ YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
+ }
+
+ if ( (yy_n_chars) == 0 )
+ {
+ if ( number_to_move == YY_MORE_ADJ )
+ {
+ ret_val = EOB_ACT_END_OF_FILE;
+ yyrestart(yyin );
+ }
+
+ else
+ {
+ ret_val = EOB_ACT_LAST_MATCH;
+ YY_CURRENT_BUFFER_LVALUE->yy_buffer_status =
+ YY_BUFFER_EOF_PENDING;
+ }
+ }
+
+ else
+ ret_val = EOB_ACT_CONTINUE_SCAN;
+
+ if ((int) ((yy_n_chars) + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) {
+ /* Extend the array by 50%, plus the number we really need. */
+ int new_size = (yy_n_chars) + number_to_move + ((yy_n_chars) >> 1);
+ YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) yyrealloc((void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf,new_size );
+ if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf )
+ YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" );
+ }
+
+ (yy_n_chars) += number_to_move;
+ YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] = YY_END_OF_BUFFER_CHAR;
+ YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] = YY_END_OF_BUFFER_CHAR;
+
+ (yytext_ptr) = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[0];
+
+ return ret_val;
+}
+
+/* yy_get_previous_state - get the state just before the EOB char was reached */
+
+ static yy_state_type yy_get_previous_state (void)
+{
+ register yy_state_type yy_current_state;
+ register char *yy_cp;
+
+ yy_current_state = (yy_start);
+
+ for ( yy_cp = (yytext_ptr) + YY_MORE_ADJ; yy_cp < (yy_c_buf_p); ++yy_cp )
+ {
+ register YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1);
+ if ( yy_accept[yy_current_state] )
+ {
+ (yy_last_accepting_state) = yy_current_state;
+ (yy_last_accepting_cpos) = yy_cp;
+ }
+ while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
+ {
+ yy_current_state = (int) yy_def[yy_current_state];
+ if ( yy_current_state >= 19 )
+ yy_c = yy_meta[(unsigned int) yy_c];
+ }
+ yy_current_state = yy_nxt[yy_base[yy_current_state] + (flex_int16_t) yy_c];
+ }
+
+ return yy_current_state;
+}
+
+/* yy_try_NUL_trans - try to make a transition on the NUL character
+ *
+ * synopsis
+ * next_state = yy_try_NUL_trans( current_state );
+ */
+ static yy_state_type yy_try_NUL_trans (yy_state_type yy_current_state )
+{
+ register int yy_is_jam;
+ register char *yy_cp = (yy_c_buf_p);
+
+ register YY_CHAR yy_c = 1;
+ if ( yy_accept[yy_current_state] )
+ {
+ (yy_last_accepting_state) = yy_current_state;
+ (yy_last_accepting_cpos) = yy_cp;
+ }
+ while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
+ {
+ yy_current_state = (int) yy_def[yy_current_state];
+ if ( yy_current_state >= 19 )
+ yy_c = yy_meta[(unsigned int) yy_c];
+ }
+ yy_current_state = yy_nxt[yy_base[yy_current_state] + (flex_int16_t) yy_c];
+ yy_is_jam = (yy_current_state == 18);
+
+ return yy_is_jam ? 0 : yy_current_state;
+}
+
+ static void yyunput (int c, register char * yy_bp )
+{
+ register char *yy_cp;
+
+ yy_cp = (yy_c_buf_p);
+
+ /* undo effects of setting up yytext */
+ *yy_cp = (yy_hold_char);
+
+ if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 )
+ { /* need to shift things up to make room */
+ /* +2 for EOB chars. */
+ register int number_to_move = (yy_n_chars) + 2;
+ register char *dest = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[
+ YY_CURRENT_BUFFER_LVALUE->yy_buf_size + 2];
+ register char *source =
+ &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move];
+
+ while ( source > YY_CURRENT_BUFFER_LVALUE->yy_ch_buf )
+ *--dest = *--source;
+
+ yy_cp += (int) (dest - source);
+ yy_bp += (int) (dest - source);
+ YY_CURRENT_BUFFER_LVALUE->yy_n_chars =
+ (yy_n_chars) = (int) YY_CURRENT_BUFFER_LVALUE->yy_buf_size;
+
+ if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 )
+ YY_FATAL_ERROR( "flex scanner push-back overflow" );
+ }
+
+ *--yy_cp = (char) c;
+
+ (yytext_ptr) = yy_bp;
+ (yy_hold_char) = *yy_cp;
+ (yy_c_buf_p) = yy_cp;
+}
+
+#ifndef YY_NO_INPUT
+#ifdef __cplusplus
+ static int yyinput (void)
+#else
+ static int input (void)
+#endif
+
+{
+ int c;
+
+ *(yy_c_buf_p) = (yy_hold_char);
+
+ if ( *(yy_c_buf_p) == YY_END_OF_BUFFER_CHAR )
+ {
+ /* yy_c_buf_p now points to the character we want to return.
+ * If this occurs *before* the EOB characters, then it's a
+ * valid NUL; if not, then we've hit the end of the buffer.
+ */
+ if ( (yy_c_buf_p) < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
+ /* This was really a NUL. */
+ *(yy_c_buf_p) = '\0';
+
+ else
+ { /* need more input */
+ yy_size_t offset = (yy_c_buf_p) - (yytext_ptr);
+ ++(yy_c_buf_p);
+
+ switch ( yy_get_next_buffer( ) )
+ {
+ case EOB_ACT_LAST_MATCH:
+ /* This happens because yy_g_n_b()
+ * sees that we've accumulated a
+ * token and flags that we need to
+ * try matching the token before
+ * proceeding. But for input(),
+ * there's no matching to consider.
+ * So convert the EOB_ACT_LAST_MATCH
+ * to EOB_ACT_END_OF_FILE.
+ */
+
+ /* Reset buffer status. */
+ yyrestart(yyin );
+
+ /*FALLTHROUGH*/
+
+ case EOB_ACT_END_OF_FILE:
+ {
+ if ( yywrap( ) )
+ return EOF;
+
+ if ( ! (yy_did_buffer_switch_on_eof) )
+ YY_NEW_FILE;
+#ifdef __cplusplus
+ return yyinput();
+#else
+ return input();
+#endif
+ }
+
+ case EOB_ACT_CONTINUE_SCAN:
+ (yy_c_buf_p) = (yytext_ptr) + offset;
+ break;
+ }
+ }
+ }
+
+ c = *(unsigned char *) (yy_c_buf_p); /* cast for 8-bit char's */
+ *(yy_c_buf_p) = '\0'; /* preserve yytext */
+ (yy_hold_char) = *++(yy_c_buf_p);
+
+ return c;
+}
+#endif /* ifndef YY_NO_INPUT */
+
+/** Immediately switch to a different input stream.
+ * @param input_file A readable stream.
+ *
+ * @note This function does not reset the start condition to @c INITIAL .
+ */
+ void yyrestart (FILE * input_file )
+{
+
+ if ( ! YY_CURRENT_BUFFER ){
+ yyensure_buffer_stack ();
+ YY_CURRENT_BUFFER_LVALUE =
+ yy_create_buffer(yyin,YY_BUF_SIZE );
+ }
+
+ yy_init_buffer(YY_CURRENT_BUFFER,input_file );
+ yy_load_buffer_state( );
+}
+
+/** Switch to a different input buffer.
+ * @param new_buffer The new input buffer.
+ *
+ */
+ void yy_switch_to_buffer (YY_BUFFER_STATE new_buffer )
+{
+
+ /* TODO. We should be able to replace this entire function body
+ * with
+ * yypop_buffer_state();
+ * yypush_buffer_state(new_buffer);
+ */
+ yyensure_buffer_stack ();
+ if ( YY_CURRENT_BUFFER == new_buffer )
+ return;
+
+ if ( YY_CURRENT_BUFFER )
+ {
+ /* Flush out information for old buffer. */
+ *(yy_c_buf_p) = (yy_hold_char);
+ YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
+ YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
+ }
+
+ YY_CURRENT_BUFFER_LVALUE = new_buffer;
+ yy_load_buffer_state( );
+
+ /* We don't actually know whether we did this switch during
+ * EOF (yywrap()) processing, but the only time this flag
+ * is looked at is after yywrap() is called, so it's safe
+ * to go ahead and always set it.
+ */
+ (yy_did_buffer_switch_on_eof) = 1;
+}
+
+static void yy_load_buffer_state (void)
+{
+ (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
+ (yytext_ptr) = (yy_c_buf_p) = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos;
+ yyin = YY_CURRENT_BUFFER_LVALUE->yy_input_file;
+ (yy_hold_char) = *(yy_c_buf_p);
+}
+
+/** Allocate and initialize an input buffer state.
+ * @param file A readable stream.
+ * @param size The character buffer size in bytes. When in doubt, use @c YY_BUF_SIZE.
+ *
+ * @return the allocated buffer state.
+ */
+ YY_BUFFER_STATE yy_create_buffer (FILE * file, int size )
+{
+ YY_BUFFER_STATE b;
+
+ b = (YY_BUFFER_STATE) yyalloc(sizeof( struct yy_buffer_state ) );
+ if ( ! b )
+ YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );
+
+ b->yy_buf_size = size;
+
+ /* yy_ch_buf has to be 2 characters longer than the size given because
+ * we need to put in 2 end-of-buffer characters.
+ */
+ b->yy_ch_buf = (char *) yyalloc(b->yy_buf_size + 2 );
+ if ( ! b->yy_ch_buf )
+ YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );
+
+ b->yy_is_our_buffer = 1;
+
+ yy_init_buffer(b,file );
+
+ return b;
+}
+
+/** Destroy the buffer.
+ * @param b a buffer created with yy_create_buffer()
+ *
+ */
+ void yy_delete_buffer (YY_BUFFER_STATE b )
+{
+
+ if ( ! b )
+ return;
+
+ if ( b == YY_CURRENT_BUFFER ) /* Not sure if we should pop here. */
+ YY_CURRENT_BUFFER_LVALUE = (YY_BUFFER_STATE) 0;
+
+ if ( b->yy_is_our_buffer )
+ yyfree((void *) b->yy_ch_buf );
+
+ yyfree((void *) b );
+}
+
+/* Initializes or reinitializes a buffer.
+ * This function is sometimes called more than once on the same buffer,
+ * such as during a yyrestart() or at EOF.
+ */
+ static void yy_init_buffer (YY_BUFFER_STATE b, FILE * file )
+
+{
+ int oerrno = errno;
+
+ yy_flush_buffer(b );
+
+ b->yy_input_file = file;
+ b->yy_fill_buffer = 1;
+
+ /* If b is the current buffer, then yy_init_buffer was _probably_
+ * called from yyrestart() or through yy_get_next_buffer.
+ * In that case, we don't want to reset the lineno or column.
+ */
+ if (b != YY_CURRENT_BUFFER){
+ b->yy_bs_lineno = 1;
+ b->yy_bs_column = 0;
+ }
+
+ b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0;
+
+ errno = oerrno;
+}
+
+/** Discard all buffered characters. On the next scan, YY_INPUT will be called.
+ * @param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER.
+ *
+ */
+ void yy_flush_buffer (YY_BUFFER_STATE b )
+{
+ if ( ! b )
+ return;
+
+ b->yy_n_chars = 0;
+
+ /* We always need two end-of-buffer characters. The first causes
+ * a transition to the end-of-buffer state. The second causes
+ * a jam in that state.
+ */
+ b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR;
+ b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR;
+
+ b->yy_buf_pos = &b->yy_ch_buf[0];
+
+ b->yy_at_bol = 1;
+ b->yy_buffer_status = YY_BUFFER_NEW;
+
+ if ( b == YY_CURRENT_BUFFER )
+ yy_load_buffer_state( );
+}
+
+/** Pushes the new state onto the stack. The new state becomes
+ * the current state. This function will allocate the stack
+ * if necessary.
+ * @param new_buffer The new state.
+ *
+ */
+void yypush_buffer_state (YY_BUFFER_STATE new_buffer )
+{
+ if (new_buffer == NULL)
+ return;
+
+ yyensure_buffer_stack();
+
+ /* This block is copied from yy_switch_to_buffer. */
+ if ( YY_CURRENT_BUFFER )
+ {
+ /* Flush out information for old buffer. */
+ *(yy_c_buf_p) = (yy_hold_char);
+ YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
+ YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
+ }
+
+ /* Only push if top exists. Otherwise, replace top. */
+ if (YY_CURRENT_BUFFER)
+ (yy_buffer_stack_top)++;
+ YY_CURRENT_BUFFER_LVALUE = new_buffer;
+
+ /* copied from yy_switch_to_buffer. */
+ yy_load_buffer_state( );
+ (yy_did_buffer_switch_on_eof) = 1;
+}
+
+/** Removes and deletes the top of the stack, if present.
+ * The next element becomes the new top.
+ *
+ */
+void yypop_buffer_state (void)
+{
+ if (!YY_CURRENT_BUFFER)
+ return;
+
+ yy_delete_buffer(YY_CURRENT_BUFFER );
+ YY_CURRENT_BUFFER_LVALUE = NULL;
+ if ((yy_buffer_stack_top) > 0)
+ --(yy_buffer_stack_top);
+
+ if (YY_CURRENT_BUFFER) {
+ yy_load_buffer_state( );
+ (yy_did_buffer_switch_on_eof) = 1;
+ }
+}
+
+/* Allocates the stack if it does not exist.
+ * Guarantees space for at least one push.
+ */
+static void yyensure_buffer_stack (void)
+{
+ yy_size_t num_to_alloc;
+
+ if (!(yy_buffer_stack)) {
+
+ /* First allocation is just for 2 elements, since we don't know if this
+ * scanner will even need a stack. We use 2 instead of 1 to avoid an
+ * immediate realloc on the next call.
+ */
+ num_to_alloc = 1;
+ (yy_buffer_stack) = (struct yy_buffer_state**)yyalloc
+ (num_to_alloc * sizeof(struct yy_buffer_state*)
+ );
+ if ( ! (yy_buffer_stack) )
+ YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" );
+
+ memset((yy_buffer_stack), 0, num_to_alloc * sizeof(struct yy_buffer_state*));
+
+ (yy_buffer_stack_max) = num_to_alloc;
+ (yy_buffer_stack_top) = 0;
+ return;
+ }
+
+ if ((yy_buffer_stack_top) >= ((yy_buffer_stack_max)) - 1){
+
+ /* Increase the buffer to prepare for a possible push. */
+ int grow_size = 8 /* arbitrary grow size */;
+
+ num_to_alloc = (yy_buffer_stack_max) + grow_size;
+ (yy_buffer_stack) = (struct yy_buffer_state**)yyrealloc
+ ((yy_buffer_stack),
+ num_to_alloc * sizeof(struct yy_buffer_state*)
+ );
+ if ( ! (yy_buffer_stack) )
+ YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" );
+
+ /* zero only the new slots.*/
+ memset((yy_buffer_stack) + (yy_buffer_stack_max), 0, grow_size * sizeof(struct yy_buffer_state*));
+ (yy_buffer_stack_max) = num_to_alloc;
+ }
+}
+
+/** Setup the input buffer state to scan directly from a user-specified character buffer.
+ * @param base the character buffer
+ * @param size the size in bytes of the character buffer
+ *
+ * @return the newly allocated buffer state object.
+ */
+YY_BUFFER_STATE yy_scan_buffer (char * base, yy_size_t size )
+{
+ YY_BUFFER_STATE b;
+
+ if ( size < 2 ||
+ base[size-2] != YY_END_OF_BUFFER_CHAR ||
+ base[size-1] != YY_END_OF_BUFFER_CHAR )
+ /* They forgot to leave room for the EOB's. */
+ return 0;
+
+ b = (YY_BUFFER_STATE) yyalloc(sizeof( struct yy_buffer_state ) );
+ if ( ! b )
+ YY_FATAL_ERROR( "out of dynamic memory in yy_scan_buffer()" );
+
+ b->yy_buf_size = size - 2; /* "- 2" to take care of EOB's */
+ b->yy_buf_pos = b->yy_ch_buf = base;
+ b->yy_is_our_buffer = 0;
+ b->yy_input_file = 0;
+ b->yy_n_chars = b->yy_buf_size;
+ b->yy_is_interactive = 0;
+ b->yy_at_bol = 1;
+ b->yy_fill_buffer = 0;
+ b->yy_buffer_status = YY_BUFFER_NEW;
+
+ yy_switch_to_buffer(b );
+
+ return b;
+}
+
+/** Setup the input buffer state to scan a string. The next call to yylex() will
+ * scan from a @e copy of @a str.
+ * @param yystr a NUL-terminated string to scan
+ *
+ * @return the newly allocated buffer state object.
+ * @note If you want to scan bytes that may contain NUL values, then use
+ * yy_scan_bytes() instead.
+ */
+YY_BUFFER_STATE yy_scan_string (yyconst char * yystr )
+{
+
+ return yy_scan_bytes(yystr,(int) strlen(yystr) );
+}
+
+/** Setup the input buffer state to scan the given bytes. The next call to yylex() will
+ * scan from a @e copy of @a bytes.
+ * @param yybytes the byte buffer to scan
+ * @param _yybytes_len the number of bytes in the buffer pointed to by @a bytes.
+ *
+ * @return the newly allocated buffer state object.
+ */
+YY_BUFFER_STATE yy_scan_bytes (yyconst char * yybytes, yy_size_t _yybytes_len )
+{
+ YY_BUFFER_STATE b;
+ char *buf;
+ yy_size_t n;
+ int i;
+
+ /* Get memory for full buffer, including space for trailing EOB's. */
+ n = (yy_size_t) _yybytes_len + 2;
+ buf = (char *) yyalloc(n );
+ if ( ! buf )
+ YY_FATAL_ERROR( "out of dynamic memory in yy_scan_bytes()" );
+
+ for ( i = 0; i < _yybytes_len; ++i )
+ buf[i] = yybytes[i];
+
+ buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR;
+
+ b = yy_scan_buffer(buf,n );
+ if ( ! b )
+ YY_FATAL_ERROR( "bad buffer in yy_scan_bytes()" );
+
+ /* It's okay to grow etc. this buffer, and we should throw it
+ * away when we're done.
+ */
+ b->yy_is_our_buffer = 1;
+
+ return b;
+}
+
+#ifndef YY_EXIT_FAILURE
+#define YY_EXIT_FAILURE 2
+#endif
+
+static void yy_fatal_error (yyconst char* msg )
+{
+ (void) fprintf( stderr, "%s\n", msg );
+ exit( YY_EXIT_FAILURE );
+}
+
+/* Redefine yyless() so it works in section 3 code. */
+
+#undef yyless
+#define yyless(n) \
+ do \
+ { \
+ /* Undo effects of setting up yytext. */ \
+ int yyless_macro_arg = (n); \
+ YY_LESS_LINENO(yyless_macro_arg);\
+ yytext[yyleng] = (yy_hold_char); \
+ (yy_c_buf_p) = yytext + yyless_macro_arg; \
+ (yy_hold_char) = *(yy_c_buf_p); \
+ *(yy_c_buf_p) = '\0'; \
+ yyleng = yyless_macro_arg; \
+ } \
+ while ( 0 )
+
+/* Accessor methods (get/set functions) to struct members. */
+
+/** Get the current line number.
+ *
+ */
+int yyget_lineno (void)
+{
+
+ return yylineno;
+}
+
+/** Get the input stream.
+ *
+ */
+FILE *yyget_in (void)
+{
+ return yyin;
+}
+
+/** Get the output stream.
+ *
+ */
+FILE *yyget_out (void)
+{
+ return yyout;
+}
+
+/** Get the length of the current token.
+ *
+ */
+yy_size_t yyget_leng (void)
+{
+ return yyleng;
+}
+
+/** Get the current token.
+ *
+ */
+
+char *yyget_text (void)
+{
+ return yytext;
+}
+
+/** Set the current line number.
+ * @param line_number
+ *
+ */
+void yyset_lineno (int line_number )
+{
+
+ yylineno = line_number;
+}
+
+/** Set the input stream. This does not discard the current
+ * input buffer.
+ * @param in_str A readable stream.
+ *
+ * @see yy_switch_to_buffer
+ */
+void yyset_in (FILE * in_str )
+{
+ yyin = in_str ;
+}
+
+void yyset_out (FILE * out_str )
+{
+ yyout = out_str ;
+}
+
+int yyget_debug (void)
+{
+ return yy_flex_debug;
+}
+
+void yyset_debug (int bdebug )
+{
+ yy_flex_debug = bdebug ;
+}
+
+static int yy_init_globals (void)
+{
+ /* Initialization is the same as for the non-reentrant scanner.
+ * This function is called from yylex_destroy(), so don't allocate here.
+ */
+
+ (yy_buffer_stack) = 0;
+ (yy_buffer_stack_top) = 0;
+ (yy_buffer_stack_max) = 0;
+ (yy_c_buf_p) = (char *) 0;
+ (yy_init) = 0;
+ (yy_start) = 0;
+
+/* Defined in main.c */
+#ifdef YY_STDINIT
+ yyin = stdin;
+ yyout = stdout;
+#else
+ yyin = (FILE *) 0;
+ yyout = (FILE *) 0;
+#endif
+
+ /* For future reference: Set errno on error, since we are called by
+ * yylex_init()
+ */
+ return 0;
+}
+
+/* yylex_destroy is for both reentrant and non-reentrant scanners. */
+int yylex_destroy (void)
+{
+
+ /* Pop the buffer stack, destroying each element. */
+ while(YY_CURRENT_BUFFER){
+ yy_delete_buffer(YY_CURRENT_BUFFER );
+ YY_CURRENT_BUFFER_LVALUE = NULL;
+ yypop_buffer_state();
+ }
+
+ /* Destroy the stack itself. */
+ yyfree((yy_buffer_stack) );
+ (yy_buffer_stack) = NULL;
+
+ /* Reset the globals. This is important in a non-reentrant scanner so the next time
+ * yylex() is called, initialization will occur. */
+ yy_init_globals( );
+
+ return 0;
+}
+
+/*
+ * Internal utility routines.
+ */
+
+#ifndef yytext_ptr
+static void yy_flex_strncpy (char* s1, yyconst char * s2, int n )
+{
+ register int i;
+ for ( i = 0; i < n; ++i )
+ s1[i] = s2[i];
+}
+#endif
+
+#ifdef YY_NEED_STRLEN
+static int yy_flex_strlen (yyconst char * s )
+{
+ register int n;
+ for ( n = 0; s[n]; ++n )
+ ;
+
+ return n;
+}
+#endif
+
+void *yyalloc (yy_size_t size )
+{
+ return (void *) malloc( size );
+}
+
+void *yyrealloc (void * ptr, yy_size_t size )
+{
+ /* The cast to (char *) in the following accommodates both
+ * implementations that use char* generic pointers, and those
+ * that use void* generic pointers. It works with the latter
+ * because both ANSI C and C++ allow castless assignment from
+ * any pointer type to void*, and deal with argument conversions
+ * as though doing an assignment.
+ */
+ return (void *) realloc( (char *) ptr, size );
+}
+
+void yyfree (void * ptr )
+{
+ free( (char *) ptr ); /* see yyrealloc() for (char *) cast */
+}
+
+#define YYTABLES_NAME "yytables"
+
+#line 22 "parse_l.l"
+
+
+
diff --git a/doc/specs/parse_y.c b/doc/specs/parse_y.c
new file mode 100644
index 00000000..62774782
--- /dev/null
+++ b/doc/specs/parse_y.c
@@ -0,0 +1,1927 @@
+/* A Bison parser, made by GNU Bison 2.7. */
+
+/* Bison implementation for Yacc-like parsers in C
+
+ Copyright (C) 1984, 1989-1990, 2000-2012 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* As a special exception, you may create a larger work that contains
+ part or all of the Bison parser skeleton and distribute that work
+ under terms of your choice, so long as that work isn't itself a
+ parser generator using the skeleton or a modified version thereof
+ as a parser skeleton. Alternatively, if you modify or redistribute
+ the parser skeleton itself, you may (at your option) remove this
+ special exception, which will cause the skeleton and the resulting
+ Bison output files to be licensed under the GNU General Public
+ License without this special exception.
+
+ This special exception was added by the Free Software Foundation in
+ version 2.2 of Bison. */
+
+/* C LALR(1) parser skeleton written by Richard Stallman, by
+ simplifying the original so-called "semantic" parser. */
+
+/* All symbols defined below should begin with yy or YY, to avoid
+ infringing on user name space. This should be done even for local
+ variables, as they might otherwise be expanded by user macros.
+ There are some unavoidable exceptions within include files to
+ define necessary library symbols; they are noted "INFRINGES ON
+ USER NAME SPACE" below. */
+
+/* Identify Bison output. */
+#define YYBISON 1
+
+/* Bison version. */
+#define YYBISON_VERSION "2.7"
+
+/* Skeleton name. */
+#define YYSKELETON_NAME "yacc.c"
+
+/* Pure parsers. */
+#define YYPURE 0
+
+/* Push parsers. */
+#define YYPUSH 0
+
+/* Pull parsers. */
+#define YYPULL 1
+
+
+
+
+/* Copy the first part of user declarations. */
+/* Line 371 of yacc.c */
+#line 2 "parse_y.y"
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define MAXLINE 1000
+#define INDENT_STRING " "
+#define PAPER_WIDTH 74
+
+ int indent=0;
+ int line=1;
+ char *last_label=NULL;
+
+ extern int yylex(void);
+ extern char *yytext;
+ extern void yyerror(const char *x);
+ extern char *get_label(const char *label);
+ extern void set_label(const char *label, const char *target);
+ char *new_counter(const char *key);
+
+/* Line 371 of yacc.c */
+#line 93 "parse_y.c"
+
+# ifndef YY_NULL
+# if defined __cplusplus && 201103L <= __cplusplus
+# define YY_NULL nullptr
+# else
+# define YY_NULL 0
+# endif
+# endif
+
+/* Enabling verbose error messages. */
+#ifdef YYERROR_VERBOSE
+# undef YYERROR_VERBOSE
+# define YYERROR_VERBOSE 1
+#else
+# define YYERROR_VERBOSE 0
+#endif
+
+/* In a future release of Bison, this section will be replaced
+ by #include "y.tab.h". */
+#ifndef YY_YY_PARSE_Y_H_INCLUDED
+# define YY_YY_PARSE_Y_H_INCLUDED
+/* Enabling traces. */
+#ifndef YYDEBUG
+# define YYDEBUG 0
+#endif
+#if YYDEBUG
+extern int yydebug;
+#endif
+
+/* Tokens. */
+#ifndef YYTOKENTYPE
+# define YYTOKENTYPE
+ /* Put the tokens into the symbol table, so that GDB and other debuggers
+ know about them. */
+ enum yytokentype {
+ NEW_COUNTER = 258,
+ LABEL = 259,
+ HASH = 260,
+ CHAR = 261,
+ NEWLINE = 262,
+ NO_INDENT = 263,
+ RIGHT = 264
+ };
+#endif
+/* Tokens. */
+#define NEW_COUNTER 258
+#define LABEL 259
+#define HASH 260
+#define CHAR 261
+#define NEWLINE 262
+#define NO_INDENT 263
+#define RIGHT 264
+
+
+
+#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
+typedef union YYSTYPE
+{
+/* Line 387 of yacc.c */
+#line 27 "parse_y.y"
+
+ int def;
+ char *string;
+
+
+/* Line 387 of yacc.c */
+#line 160 "parse_y.c"
+} YYSTYPE;
+# define YYSTYPE_IS_TRIVIAL 1
+# define yystype YYSTYPE /* obsolescent; will be withdrawn */
+# define YYSTYPE_IS_DECLARED 1
+#endif
+
+extern YYSTYPE yylval;
+
+#ifdef YYPARSE_PARAM
+#if defined __STDC__ || defined __cplusplus
+int yyparse (void *YYPARSE_PARAM);
+#else
+int yyparse ();
+#endif
+#else /* ! YYPARSE_PARAM */
+#if defined __STDC__ || defined __cplusplus
+int yyparse (void);
+#else
+int yyparse ();
+#endif
+#endif /* ! YYPARSE_PARAM */
+
+#endif /* !YY_YY_PARSE_Y_H_INCLUDED */
+
+/* Copy the second part of user declarations. */
+
+/* Line 390 of yacc.c */
+#line 188 "parse_y.c"
+
+#ifdef short
+# undef short
+#endif
+
+#ifdef YYTYPE_UINT8
+typedef YYTYPE_UINT8 yytype_uint8;
+#else
+typedef unsigned char yytype_uint8;
+#endif
+
+#ifdef YYTYPE_INT8
+typedef YYTYPE_INT8 yytype_int8;
+#elif (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+typedef signed char yytype_int8;
+#else
+typedef short int yytype_int8;
+#endif
+
+#ifdef YYTYPE_UINT16
+typedef YYTYPE_UINT16 yytype_uint16;
+#else
+typedef unsigned short int yytype_uint16;
+#endif
+
+#ifdef YYTYPE_INT16
+typedef YYTYPE_INT16 yytype_int16;
+#else
+typedef short int yytype_int16;
+#endif
+
+#ifndef YYSIZE_T
+# ifdef __SIZE_TYPE__
+# define YYSIZE_T __SIZE_TYPE__
+# elif defined size_t
+# define YYSIZE_T size_t
+# elif ! defined YYSIZE_T && (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+# include <stddef.h> /* INFRINGES ON USER NAME SPACE */
+# define YYSIZE_T size_t
+# else
+# define YYSIZE_T unsigned int
+# endif
+#endif
+
+#define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
+
+#ifndef YY_
+# if defined YYENABLE_NLS && YYENABLE_NLS
+# if ENABLE_NLS
+# include <libintl.h> /* INFRINGES ON USER NAME SPACE */
+# define YY_(Msgid) dgettext ("bison-runtime", Msgid)
+# endif
+# endif
+# ifndef YY_
+# define YY_(Msgid) Msgid
+# endif
+#endif
+
+/* Suppress unused-variable warnings by "using" E. */
+#if ! defined lint || defined __GNUC__
+# define YYUSE(E) ((void) (E))
+#else
+# define YYUSE(E) /* empty */
+#endif
+
+/* Identity function, used to suppress warnings about constant conditions. */
+#ifndef lint
+# define YYID(N) (N)
+#else
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static int
+YYID (int yyi)
+#else
+static int
+YYID (yyi)
+ int yyi;
+#endif
+{
+ return yyi;
+}
+#endif
+
+#if ! defined yyoverflow || YYERROR_VERBOSE
+
+/* The parser invokes alloca or malloc; define the necessary symbols. */
+
+# ifdef YYSTACK_USE_ALLOCA
+# if YYSTACK_USE_ALLOCA
+# ifdef __GNUC__
+# define YYSTACK_ALLOC __builtin_alloca
+# elif defined __BUILTIN_VA_ARG_INCR
+# include <alloca.h> /* INFRINGES ON USER NAME SPACE */
+# elif defined _AIX
+# define YYSTACK_ALLOC __alloca
+# elif defined _MSC_VER
+# include <malloc.h> /* INFRINGES ON USER NAME SPACE */
+# define alloca _alloca
+# else
+# define YYSTACK_ALLOC alloca
+# if ! defined _ALLOCA_H && ! defined EXIT_SUCCESS && (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
+ /* Use EXIT_SUCCESS as a witness for stdlib.h. */
+# ifndef EXIT_SUCCESS
+# define EXIT_SUCCESS 0
+# endif
+# endif
+# endif
+# endif
+# endif
+
+# ifdef YYSTACK_ALLOC
+ /* Pacify GCC's `empty if-body' warning. */
+# define YYSTACK_FREE(Ptr) do { /* empty */; } while (YYID (0))
+# ifndef YYSTACK_ALLOC_MAXIMUM
+ /* The OS might guarantee only one guard page at the bottom of the stack,
+ and a page size can be as small as 4096 bytes. So we cannot safely
+ invoke alloca (N) if N exceeds 4096. Use a slightly smaller number
+ to allow for a few compiler-allocated temporary stack slots. */
+# define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */
+# endif
+# else
+# define YYSTACK_ALLOC YYMALLOC
+# define YYSTACK_FREE YYFREE
+# ifndef YYSTACK_ALLOC_MAXIMUM
+# define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
+# endif
+# if (defined __cplusplus && ! defined EXIT_SUCCESS \
+ && ! ((defined YYMALLOC || defined malloc) \
+ && (defined YYFREE || defined free)))
+# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
+# ifndef EXIT_SUCCESS
+# define EXIT_SUCCESS 0
+# endif
+# endif
+# ifndef YYMALLOC
+# define YYMALLOC malloc
+# if ! defined malloc && ! defined EXIT_SUCCESS && (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
+# endif
+# endif
+# ifndef YYFREE
+# define YYFREE free
+# if ! defined free && ! defined EXIT_SUCCESS && (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+void free (void *); /* INFRINGES ON USER NAME SPACE */
+# endif
+# endif
+# endif
+#endif /* ! defined yyoverflow || YYERROR_VERBOSE */
+
+
+#if (! defined yyoverflow \
+ && (! defined __cplusplus \
+ || (defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))
+
+/* A type that is properly aligned for any stack member. */
+union yyalloc
+{
+ yytype_int16 yyss_alloc;
+ YYSTYPE yyvs_alloc;
+};
+
+/* The size of the maximum gap between one aligned stack and the next. */
+# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
+
+/* The size of an array large to enough to hold all stacks, each with
+ N elements. */
+# define YYSTACK_BYTES(N) \
+ ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE)) \
+ + YYSTACK_GAP_MAXIMUM)
+
+# define YYCOPY_NEEDED 1
+
+/* Relocate STACK from its old location to the new one. The
+ local variables YYSIZE and YYSTACKSIZE give the old and new number of
+ elements in the stack, and YYPTR gives the new location of the
+ stack. Advance YYPTR to a properly aligned location for the next
+ stack. */
+# define YYSTACK_RELOCATE(Stack_alloc, Stack) \
+ do \
+ { \
+ YYSIZE_T yynewbytes; \
+ YYCOPY (&yyptr->Stack_alloc, Stack, yysize); \
+ Stack = &yyptr->Stack_alloc; \
+ yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
+ yyptr += yynewbytes / sizeof (*yyptr); \
+ } \
+ while (YYID (0))
+
+#endif
+
+#if defined YYCOPY_NEEDED && YYCOPY_NEEDED
+/* Copy COUNT objects from SRC to DST. The source and destination do
+ not overlap. */
+# ifndef YYCOPY
+# if defined __GNUC__ && 1 < __GNUC__
+# define YYCOPY(Dst, Src, Count) \
+ __builtin_memcpy (Dst, Src, (Count) * sizeof (*(Src)))
+# else
+# define YYCOPY(Dst, Src, Count) \
+ do \
+ { \
+ YYSIZE_T yyi; \
+ for (yyi = 0; yyi < (Count); yyi++) \
+ (Dst)[yyi] = (Src)[yyi]; \
+ } \
+ while (YYID (0))
+# endif
+# endif
+#endif /* !YYCOPY_NEEDED */
+
+/* YYFINAL -- State number of the termination state. */
+#define YYFINAL 2
+/* YYLAST -- Last index in YYTABLE. */
+#define YYLAST 27
+
+/* YYNTOKENS -- Number of terminals. */
+#define YYNTOKENS 10
+/* YYNNTS -- Number of nonterminals. */
+#define YYNNTS 4
+/* YYNRULES -- Number of rules. */
+#define YYNRULES 15
+/* YYNRULES -- Number of states. */
+#define YYNSTATES 19
+
+/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */
+#define YYUNDEFTOK 2
+#define YYMAXUTOK 264
+
+#define YYTRANSLATE(YYX) \
+ ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
+
+/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */
+static const yytype_uint8 yytranslate[] =
+{
+ 0, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 1, 2, 3, 4,
+ 5, 6, 7, 8, 9
+};
+
+#if YYDEBUG
+/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
+ YYRHS. */
+static const yytype_uint8 yyprhs[] =
+{
+ 0, 0, 3, 4, 7, 11, 17, 25, 33, 34,
+ 37, 39, 42, 44, 46, 48
+};
+
+/* YYRHS -- A `-1'-separated list of the rules' RHS. */
+static const yytype_int8 yyrhs[] =
+{
+ 11, 0, -1, -1, 11, 7, -1, 11, 12, 7,
+ -1, 11, 12, 9, 12, 7, -1, 11, 12, 9,
+ 12, 9, 12, 7, -1, 11, 12, 9, 12, 9,
+ 12, 7, -1, -1, 12, 13, -1, 6, -1, 13,
+ 6, -1, 8, -1, 5, -1, 4, -1, 3, -1
+};
+
+/* YYRLINE[YYN] -- source line where rule number YYN was defined. */
+static const yytype_uint8 yyrline[] =
+{
+ 0, 39, 39, 40, 44, 53, 72, 99, 128, 131,
+ 139, 142, 147, 151, 154, 160
+};
+#endif
+
+#if YYDEBUG || YYERROR_VERBOSE || 0
+/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
+ First, the terminals, then, starting at YYNTOKENS, nonterminals. */
+static const char *const yytname[] =
+{
+ "$end", "error", "$undefined", "NEW_COUNTER", "LABEL", "HASH", "CHAR",
+ "NEWLINE", "NO_INDENT", "RIGHT", "$accept", "doc", "stuff", "text", YY_NULL
+};
+#endif
+
+# ifdef YYPRINT
+/* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to
+ token YYLEX-NUM. */
+static const yytype_uint16 yytoknum[] =
+{
+ 0, 256, 257, 258, 259, 260, 261, 262, 263, 264
+};
+# endif
+
+/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */
+static const yytype_uint8 yyr1[] =
+{
+ 0, 10, 11, 11, 11, 11, 11, 11, 12, 12,
+ 13, 13, 13, 13, 13, 13
+};
+
+/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */
+static const yytype_uint8 yyr2[] =
+{
+ 0, 2, 0, 2, 3, 5, 7, 7, 0, 2,
+ 1, 2, 1, 1, 1, 1
+};
+
+/* YYDEFACT[STATE-NAME] -- Default reduction number in state STATE-NUM.
+ Performed when YYTABLE doesn't specify something else to do. Zero
+ means the default is an error. */
+static const yytype_uint8 yydefact[] =
+{
+ 2, 8, 1, 3, 0, 15, 14, 13, 10, 4,
+ 12, 8, 9, 0, 11, 5, 8, 0, 6
+};
+
+/* YYDEFGOTO[NTERM-NUM]. */
+static const yytype_int8 yydefgoto[] =
+{
+ -1, 1, 4, 12
+};
+
+/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
+ STATE-NUM. */
+#define YYPACT_NINF -3
+static const yytype_int8 yypact[] =
+{
+ -3, 0, -3, -3, 5, -3, -3, -3, -3, -3,
+ -3, -3, 17, 12, -3, -3, -3, -2, -3
+};
+
+/* YYPGOTO[NTERM-NUM]. */
+static const yytype_int8 yypgoto[] =
+{
+ -3, -3, 11, -3
+};
+
+/* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If
+ positive, shift that token. If negative, reduce the rule which
+ number is the opposite. If YYTABLE_NINF, syntax error. */
+#define YYTABLE_NINF -1
+static const yytype_uint8 yytable[] =
+{
+ 2, 5, 6, 7, 8, 18, 10, 3, 5, 6,
+ 7, 8, 9, 10, 11, 5, 6, 7, 8, 15,
+ 10, 16, 13, 14, 0, 0, 0, 17
+};
+
+#define yypact_value_is_default(Yystate) \
+ (!!((Yystate) == (-3)))
+
+#define yytable_value_is_error(Yytable_value) \
+ YYID (0)
+
+static const yytype_int8 yycheck[] =
+{
+ 0, 3, 4, 5, 6, 7, 8, 7, 3, 4,
+ 5, 6, 7, 8, 9, 3, 4, 5, 6, 7,
+ 8, 9, 11, 6, -1, -1, -1, 16
+};
+
+/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
+ symbol of state STATE-NUM. */
+static const yytype_uint8 yystos[] =
+{
+ 0, 11, 0, 7, 12, 3, 4, 5, 6, 7,
+ 8, 9, 13, 12, 6, 7, 9, 12, 7
+};
+
+#define yyerrok (yyerrstatus = 0)
+#define yyclearin (yychar = YYEMPTY)
+#define YYEMPTY (-2)
+#define YYEOF 0
+
+#define YYACCEPT goto yyacceptlab
+#define YYABORT goto yyabortlab
+#define YYERROR goto yyerrorlab
+
+
+/* Like YYERROR except do call yyerror. This remains here temporarily
+ to ease the transition to the new meaning of YYERROR, for GCC.
+ Once GCC version 2 has supplanted version 1, this can go. However,
+ YYFAIL appears to be in use. Nevertheless, it is formally deprecated
+ in Bison 2.4.2's NEWS entry, where a plan to phase it out is
+ discussed. */
+
+#define YYFAIL goto yyerrlab
+#if defined YYFAIL
+ /* This is here to suppress warnings from the GCC cpp's
+ -Wunused-macros. Normally we don't worry about that warning, but
+ some users do, and we want to make it easy for users to remove
+ YYFAIL uses, which will produce warnings from Bison 2.5. */
+#endif
+
+#define YYRECOVERING() (!!yyerrstatus)
+
+#define YYBACKUP(Token, Value) \
+do \
+ if (yychar == YYEMPTY) \
+ { \
+ yychar = (Token); \
+ yylval = (Value); \
+ YYPOPSTACK (yylen); \
+ yystate = *yyssp; \
+ goto yybackup; \
+ } \
+ else \
+ { \
+ yyerror (YY_("syntax error: cannot back up")); \
+ YYERROR; \
+ } \
+while (YYID (0))
+
+/* Error token number */
+#define YYTERROR 1
+#define YYERRCODE 256
+
+
+/* This macro is provided for backward compatibility. */
+#ifndef YY_LOCATION_PRINT
+# define YY_LOCATION_PRINT(File, Loc) ((void) 0)
+#endif
+
+
+/* YYLEX -- calling `yylex' with the right arguments. */
+#ifdef YYLEX_PARAM
+# define YYLEX yylex (YYLEX_PARAM)
+#else
+# define YYLEX yylex ()
+#endif
+
+/* Enable debugging if requested. */
+#if YYDEBUG
+
+# ifndef YYFPRINTF
+# include <stdio.h> /* INFRINGES ON USER NAME SPACE */
+# define YYFPRINTF fprintf
+# endif
+
+# define YYDPRINTF(Args) \
+do { \
+ if (yydebug) \
+ YYFPRINTF Args; \
+} while (YYID (0))
+
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location) \
+do { \
+ if (yydebug) \
+ { \
+ YYFPRINTF (stderr, "%s ", Title); \
+ yy_symbol_print (stderr, \
+ Type, Value); \
+ YYFPRINTF (stderr, "\n"); \
+ } \
+} while (YYID (0))
+
+
+/*--------------------------------.
+| Print this symbol on YYOUTPUT. |
+`--------------------------------*/
+
+/*ARGSUSED*/
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static void
+yy_symbol_value_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep)
+#else
+static void
+yy_symbol_value_print (yyoutput, yytype, yyvaluep)
+ FILE *yyoutput;
+ int yytype;
+ YYSTYPE const * const yyvaluep;
+#endif
+{
+ FILE *yyo = yyoutput;
+ YYUSE (yyo);
+ if (!yyvaluep)
+ return;
+# ifdef YYPRINT
+ if (yytype < YYNTOKENS)
+ YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep);
+# else
+ YYUSE (yyoutput);
+# endif
+ switch (yytype)
+ {
+ default:
+ break;
+ }
+}
+
+
+/*--------------------------------.
+| Print this symbol on YYOUTPUT. |
+`--------------------------------*/
+
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static void
+yy_symbol_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep)
+#else
+static void
+yy_symbol_print (yyoutput, yytype, yyvaluep)
+ FILE *yyoutput;
+ int yytype;
+ YYSTYPE const * const yyvaluep;
+#endif
+{
+ if (yytype < YYNTOKENS)
+ YYFPRINTF (yyoutput, "token %s (", yytname[yytype]);
+ else
+ YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]);
+
+ yy_symbol_value_print (yyoutput, yytype, yyvaluep);
+ YYFPRINTF (yyoutput, ")");
+}
+
+/*------------------------------------------------------------------.
+| yy_stack_print -- Print the state stack from its BOTTOM up to its |
+| TOP (included). |
+`------------------------------------------------------------------*/
+
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static void
+yy_stack_print (yytype_int16 *yybottom, yytype_int16 *yytop)
+#else
+static void
+yy_stack_print (yybottom, yytop)
+ yytype_int16 *yybottom;
+ yytype_int16 *yytop;
+#endif
+{
+ YYFPRINTF (stderr, "Stack now");
+ for (; yybottom <= yytop; yybottom++)
+ {
+ int yybot = *yybottom;
+ YYFPRINTF (stderr, " %d", yybot);
+ }
+ YYFPRINTF (stderr, "\n");
+}
+
+# define YY_STACK_PRINT(Bottom, Top) \
+do { \
+ if (yydebug) \
+ yy_stack_print ((Bottom), (Top)); \
+} while (YYID (0))
+
+
+/*------------------------------------------------.
+| Report that the YYRULE is going to be reduced. |
+`------------------------------------------------*/
+
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static void
+yy_reduce_print (YYSTYPE *yyvsp, int yyrule)
+#else
+static void
+yy_reduce_print (yyvsp, yyrule)
+ YYSTYPE *yyvsp;
+ int yyrule;
+#endif
+{
+ int yynrhs = yyr2[yyrule];
+ int yyi;
+ unsigned long int yylno = yyrline[yyrule];
+ YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n",
+ yyrule - 1, yylno);
+ /* The symbols being reduced. */
+ for (yyi = 0; yyi < yynrhs; yyi++)
+ {
+ YYFPRINTF (stderr, " $%d = ", yyi + 1);
+ yy_symbol_print (stderr, yyrhs[yyprhs[yyrule] + yyi],
+ &(yyvsp[(yyi + 1) - (yynrhs)])
+ );
+ YYFPRINTF (stderr, "\n");
+ }
+}
+
+# define YY_REDUCE_PRINT(Rule) \
+do { \
+ if (yydebug) \
+ yy_reduce_print (yyvsp, Rule); \
+} while (YYID (0))
+
+/* Nonzero means print parse trace. It is left uninitialized so that
+ multiple parsers can coexist. */
+int yydebug;
+#else /* !YYDEBUG */
+# define YYDPRINTF(Args)
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location)
+# define YY_STACK_PRINT(Bottom, Top)
+# define YY_REDUCE_PRINT(Rule)
+#endif /* !YYDEBUG */
+
+
+/* YYINITDEPTH -- initial size of the parser's stacks. */
+#ifndef YYINITDEPTH
+# define YYINITDEPTH 200
+#endif
+
+/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
+ if the built-in stack extension method is used).
+
+ Do not make this value too large; the results are undefined if
+ YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH)
+ evaluated with infinite-precision integer arithmetic. */
+
+#ifndef YYMAXDEPTH
+# define YYMAXDEPTH 10000
+#endif
+
+
+#if YYERROR_VERBOSE
+
+# ifndef yystrlen
+# if defined __GLIBC__ && defined _STRING_H
+# define yystrlen strlen
+# else
+/* Return the length of YYSTR. */
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static YYSIZE_T
+yystrlen (const char *yystr)
+#else
+static YYSIZE_T
+yystrlen (yystr)
+ const char *yystr;
+#endif
+{
+ YYSIZE_T yylen;
+ for (yylen = 0; yystr[yylen]; yylen++)
+ continue;
+ return yylen;
+}
+# endif
+# endif
+
+# ifndef yystpcpy
+# if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE
+# define yystpcpy stpcpy
+# else
+/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
+ YYDEST. */
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static char *
+yystpcpy (char *yydest, const char *yysrc)
+#else
+static char *
+yystpcpy (yydest, yysrc)
+ char *yydest;
+ const char *yysrc;
+#endif
+{
+ char *yyd = yydest;
+ const char *yys = yysrc;
+
+ while ((*yyd++ = *yys++) != '\0')
+ continue;
+
+ return yyd - 1;
+}
+# endif
+# endif
+
+# ifndef yytnamerr
+/* Copy to YYRES the contents of YYSTR after stripping away unnecessary
+ quotes and backslashes, so that it's suitable for yyerror. The
+ heuristic is that double-quoting is unnecessary unless the string
+ contains an apostrophe, a comma, or backslash (other than
+ backslash-backslash). YYSTR is taken from yytname. If YYRES is
+ null, do not copy; instead, return the length of what the result
+ would have been. */
+static YYSIZE_T
+yytnamerr (char *yyres, const char *yystr)
+{
+ if (*yystr == '"')
+ {
+ YYSIZE_T yyn = 0;
+ char const *yyp = yystr;
+
+ for (;;)
+ switch (*++yyp)
+ {
+ case '\'':
+ case ',':
+ goto do_not_strip_quotes;
+
+ case '\\':
+ if (*++yyp != '\\')
+ goto do_not_strip_quotes;
+ /* Fall through. */
+ default:
+ if (yyres)
+ yyres[yyn] = *yyp;
+ yyn++;
+ break;
+
+ case '"':
+ if (yyres)
+ yyres[yyn] = '\0';
+ return yyn;
+ }
+ do_not_strip_quotes: ;
+ }
+
+ if (! yyres)
+ return yystrlen (yystr);
+
+ return yystpcpy (yyres, yystr) - yyres;
+}
+# endif
+
+/* Copy into *YYMSG, which is of size *YYMSG_ALLOC, an error message
+ about the unexpected token YYTOKEN for the state stack whose top is
+ YYSSP.
+
+ Return 0 if *YYMSG was successfully written. Return 1 if *YYMSG is
+ not large enough to hold the message. In that case, also set
+ *YYMSG_ALLOC to the required number of bytes. Return 2 if the
+ required number of bytes is too large to store. */
+static int
+yysyntax_error (YYSIZE_T *yymsg_alloc, char **yymsg,
+ yytype_int16 *yyssp, int yytoken)
+{
+ YYSIZE_T yysize0 = yytnamerr (YY_NULL, yytname[yytoken]);
+ YYSIZE_T yysize = yysize0;
+ enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
+ /* Internationalized format string. */
+ const char *yyformat = YY_NULL;
+ /* Arguments of yyformat. */
+ char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
+ /* Number of reported tokens (one for the "unexpected", one per
+ "expected"). */
+ int yycount = 0;
+
+ /* There are many possibilities here to consider:
+ - Assume YYFAIL is not used. It's too flawed to consider. See
+ <http://lists.gnu.org/archive/html/bison-patches/2009-12/msg00024.html>
+ for details. YYERROR is fine as it does not invoke this
+ function.
+ - If this state is a consistent state with a default action, then
+ the only way this function was invoked is if the default action
+ is an error action. In that case, don't check for expected
+ tokens because there are none.
+ - The only way there can be no lookahead present (in yychar) is if
+ this state is a consistent state with a default action. Thus,
+ detecting the absence of a lookahead is sufficient to determine
+ that there is no unexpected or expected token to report. In that
+ case, just report a simple "syntax error".
+ - Don't assume there isn't a lookahead just because this state is a
+ consistent state with a default action. There might have been a
+ previous inconsistent state, consistent state with a non-default
+ action, or user semantic action that manipulated yychar.
+ - Of course, the expected token list depends on states to have
+ correct lookahead information, and it depends on the parser not
+ to perform extra reductions after fetching a lookahead from the
+ scanner and before detecting a syntax error. Thus, state merging
+ (from LALR or IELR) and default reductions corrupt the expected
+ token list. However, the list is correct for canonical LR with
+ one exception: it will still contain any token that will not be
+ accepted due to an error action in a later state.
+ */
+ if (yytoken != YYEMPTY)
+ {
+ int yyn = yypact[*yyssp];
+ yyarg[yycount++] = yytname[yytoken];
+ if (!yypact_value_is_default (yyn))
+ {
+ /* Start YYX at -YYN if negative to avoid negative indexes in
+ YYCHECK. In other words, skip the first -YYN actions for
+ this state because they are default actions. */
+ int yyxbegin = yyn < 0 ? -yyn : 0;
+ /* Stay within bounds of both yycheck and yytname. */
+ int yychecklim = YYLAST - yyn + 1;
+ int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
+ int yyx;
+
+ for (yyx = yyxbegin; yyx < yyxend; ++yyx)
+ if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR
+ && !yytable_value_is_error (yytable[yyx + yyn]))
+ {
+ if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
+ {
+ yycount = 1;
+ yysize = yysize0;
+ break;
+ }
+ yyarg[yycount++] = yytname[yyx];
+ {
+ YYSIZE_T yysize1 = yysize + yytnamerr (YY_NULL, yytname[yyx]);
+ if (! (yysize <= yysize1
+ && yysize1 <= YYSTACK_ALLOC_MAXIMUM))
+ return 2;
+ yysize = yysize1;
+ }
+ }
+ }
+ }
+
+ switch (yycount)
+ {
+# define YYCASE_(N, S) \
+ case N: \
+ yyformat = S; \
+ break
+ YYCASE_(0, YY_("syntax error"));
+ YYCASE_(1, YY_("syntax error, unexpected %s"));
+ YYCASE_(2, YY_("syntax error, unexpected %s, expecting %s"));
+ YYCASE_(3, YY_("syntax error, unexpected %s, expecting %s or %s"));
+ YYCASE_(4, YY_("syntax error, unexpected %s, expecting %s or %s or %s"));
+ YYCASE_(5, YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s"));
+# undef YYCASE_
+ }
+
+ {
+ YYSIZE_T yysize1 = yysize + yystrlen (yyformat);
+ if (! (yysize <= yysize1 && yysize1 <= YYSTACK_ALLOC_MAXIMUM))
+ return 2;
+ yysize = yysize1;
+ }
+
+ if (*yymsg_alloc < yysize)
+ {
+ *yymsg_alloc = 2 * yysize;
+ if (! (yysize <= *yymsg_alloc
+ && *yymsg_alloc <= YYSTACK_ALLOC_MAXIMUM))
+ *yymsg_alloc = YYSTACK_ALLOC_MAXIMUM;
+ return 1;
+ }
+
+ /* Avoid sprintf, as that infringes on the user's name space.
+ Don't have undefined behavior even if the translation
+ produced a string with the wrong number of "%s"s. */
+ {
+ char *yyp = *yymsg;
+ int yyi = 0;
+ while ((*yyp = *yyformat) != '\0')
+ if (*yyp == '%' && yyformat[1] == 's' && yyi < yycount)
+ {
+ yyp += yytnamerr (yyp, yyarg[yyi++]);
+ yyformat += 2;
+ }
+ else
+ {
+ yyp++;
+ yyformat++;
+ }
+ }
+ return 0;
+}
+#endif /* YYERROR_VERBOSE */
+
+/*-----------------------------------------------.
+| Release the memory associated to this symbol. |
+`-----------------------------------------------*/
+
+/*ARGSUSED*/
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static void
+yydestruct (const char *yymsg, int yytype, YYSTYPE *yyvaluep)
+#else
+static void
+yydestruct (yymsg, yytype, yyvaluep)
+ const char *yymsg;
+ int yytype;
+ YYSTYPE *yyvaluep;
+#endif
+{
+ YYUSE (yyvaluep);
+
+ if (!yymsg)
+ yymsg = "Deleting";
+ YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);
+
+ switch (yytype)
+ {
+
+ default:
+ break;
+ }
+}
+
+
+
+
+/* The lookahead symbol. */
+int yychar;
+
+
+#ifndef YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
+# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
+# define YY_IGNORE_MAYBE_UNINITIALIZED_END
+#endif
+#ifndef YY_INITIAL_VALUE
+# define YY_INITIAL_VALUE(Value) /* Nothing. */
+#endif
+
+/* The semantic value of the lookahead symbol. */
+YYSTYPE yylval YY_INITIAL_VALUE(yyval_default);
+
+/* Number of syntax errors so far. */
+int yynerrs;
+
+
+/*----------.
+| yyparse. |
+`----------*/
+
+#ifdef YYPARSE_PARAM
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+int
+yyparse (void *YYPARSE_PARAM)
+#else
+int
+yyparse (YYPARSE_PARAM)
+ void *YYPARSE_PARAM;
+#endif
+#else /* ! YYPARSE_PARAM */
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+int
+yyparse (void)
+#else
+int
+yyparse ()
+
+#endif
+#endif
+{
+ int yystate;
+ /* Number of tokens to shift before error messages enabled. */
+ int yyerrstatus;
+
+ /* The stacks and their tools:
+ `yyss': related to states.
+ `yyvs': related to semantic values.
+
+ Refer to the stacks through separate pointers, to allow yyoverflow
+ to reallocate them elsewhere. */
+
+ /* The state stack. */
+ yytype_int16 yyssa[YYINITDEPTH];
+ yytype_int16 *yyss;
+ yytype_int16 *yyssp;
+
+ /* The semantic value stack. */
+ YYSTYPE yyvsa[YYINITDEPTH];
+ YYSTYPE *yyvs;
+ YYSTYPE *yyvsp;
+
+ YYSIZE_T yystacksize;
+
+ int yyn;
+ int yyresult;
+ /* Lookahead token as an internal (translated) token number. */
+ int yytoken = 0;
+ /* The variables used to return semantic value and location from the
+ action routines. */
+ YYSTYPE yyval;
+
+#if YYERROR_VERBOSE
+ /* Buffer for error messages, and its allocated size. */
+ char yymsgbuf[128];
+ char *yymsg = yymsgbuf;
+ YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
+#endif
+
+#define YYPOPSTACK(N) (yyvsp -= (N), yyssp -= (N))
+
+ /* The number of symbols on the RHS of the reduced rule.
+ Keep to zero when no symbol should be popped. */
+ int yylen = 0;
+
+ yyssp = yyss = yyssa;
+ yyvsp = yyvs = yyvsa;
+ yystacksize = YYINITDEPTH;
+
+ YYDPRINTF ((stderr, "Starting parse\n"));
+
+ yystate = 0;
+ yyerrstatus = 0;
+ yynerrs = 0;
+ yychar = YYEMPTY; /* Cause a token to be read. */
+ goto yysetstate;
+
+/*------------------------------------------------------------.
+| yynewstate -- Push a new state, which is found in yystate. |
+`------------------------------------------------------------*/
+ yynewstate:
+ /* In all cases, when you get here, the value and location stacks
+ have just been pushed. So pushing a state here evens the stacks. */
+ yyssp++;
+
+ yysetstate:
+ *yyssp = yystate;
+
+ if (yyss + yystacksize - 1 <= yyssp)
+ {
+ /* Get the current used size of the three stacks, in elements. */
+ YYSIZE_T yysize = yyssp - yyss + 1;
+
+#ifdef yyoverflow
+ {
+ /* Give user a chance to reallocate the stack. Use copies of
+ these so that the &'s don't force the real ones into
+ memory. */
+ YYSTYPE *yyvs1 = yyvs;
+ yytype_int16 *yyss1 = yyss;
+
+ /* Each stack pointer address is followed by the size of the
+ data in use in that stack, in bytes. This used to be a
+ conditional around just the two extra args, but that might
+ be undefined if yyoverflow is a macro. */
+ yyoverflow (YY_("memory exhausted"),
+ &yyss1, yysize * sizeof (*yyssp),
+ &yyvs1, yysize * sizeof (*yyvsp),
+ &yystacksize);
+
+ yyss = yyss1;
+ yyvs = yyvs1;
+ }
+#else /* no yyoverflow */
+# ifndef YYSTACK_RELOCATE
+ goto yyexhaustedlab;
+# else
+ /* Extend the stack our own way. */
+ if (YYMAXDEPTH <= yystacksize)
+ goto yyexhaustedlab;
+ yystacksize *= 2;
+ if (YYMAXDEPTH < yystacksize)
+ yystacksize = YYMAXDEPTH;
+
+ {
+ yytype_int16 *yyss1 = yyss;
+ union yyalloc *yyptr =
+ (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
+ if (! yyptr)
+ goto yyexhaustedlab;
+ YYSTACK_RELOCATE (yyss_alloc, yyss);
+ YYSTACK_RELOCATE (yyvs_alloc, yyvs);
+# undef YYSTACK_RELOCATE
+ if (yyss1 != yyssa)
+ YYSTACK_FREE (yyss1);
+ }
+# endif
+#endif /* no yyoverflow */
+
+ yyssp = yyss + yysize - 1;
+ yyvsp = yyvs + yysize - 1;
+
+ YYDPRINTF ((stderr, "Stack size increased to %lu\n",
+ (unsigned long int) yystacksize));
+
+ if (yyss + yystacksize - 1 <= yyssp)
+ YYABORT;
+ }
+
+ YYDPRINTF ((stderr, "Entering state %d\n", yystate));
+
+ if (yystate == YYFINAL)
+ YYACCEPT;
+
+ goto yybackup;
+
+/*-----------.
+| yybackup. |
+`-----------*/
+yybackup:
+
+ /* Do appropriate processing given the current state. Read a
+ lookahead token if we need one and don't already have one. */
+
+ /* First try to decide what to do without reference to lookahead token. */
+ yyn = yypact[yystate];
+ if (yypact_value_is_default (yyn))
+ goto yydefault;
+
+ /* Not known => get a lookahead token if don't already have one. */
+
+ /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol. */
+ if (yychar == YYEMPTY)
+ {
+ YYDPRINTF ((stderr, "Reading a token: "));
+ yychar = YYLEX;
+ }
+
+ if (yychar <= YYEOF)
+ {
+ yychar = yytoken = YYEOF;
+ YYDPRINTF ((stderr, "Now at end of input.\n"));
+ }
+ else
+ {
+ yytoken = YYTRANSLATE (yychar);
+ YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
+ }
+
+ /* If the proper action on seeing token YYTOKEN is to reduce or to
+ detect an error, take that action. */
+ yyn += yytoken;
+ if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
+ goto yydefault;
+ yyn = yytable[yyn];
+ if (yyn <= 0)
+ {
+ if (yytable_value_is_error (yyn))
+ goto yyerrlab;
+ yyn = -yyn;
+ goto yyreduce;
+ }
+
+ /* Count tokens shifted since error; after three, turn off error
+ status. */
+ if (yyerrstatus)
+ yyerrstatus--;
+
+ /* Shift the lookahead token. */
+ YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
+
+ /* Discard the shifted token. */
+ yychar = YYEMPTY;
+
+ yystate = yyn;
+ YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
+ *++yyvsp = yylval;
+ YY_IGNORE_MAYBE_UNINITIALIZED_END
+
+ goto yynewstate;
+
+
+/*-----------------------------------------------------------.
+| yydefault -- do the default action for the current state. |
+`-----------------------------------------------------------*/
+yydefault:
+ yyn = yydefact[yystate];
+ if (yyn == 0)
+ goto yyerrlab;
+ goto yyreduce;
+
+
+/*-----------------------------.
+| yyreduce -- Do a reduction. |
+`-----------------------------*/
+yyreduce:
+ /* yyn is the number of a rule to reduce with. */
+ yylen = yyr2[yyn];
+
+ /* If YYLEN is nonzero, implement the default value of the action:
+ `$$ = $1'.
+
+ Otherwise, the following line sets YYVAL to garbage.
+ This behavior is undocumented and Bison
+ users should not rely upon it. Assigning to YYVAL
+ unconditionally makes the parser a bit smaller, and it avoids a
+ GCC warning that YYVAL may be used uninitialized. */
+ yyval = yyvsp[1-yylen];
+
+
+ YY_REDUCE_PRINT (yyn);
+ switch (yyn)
+ {
+ case 3:
+/* Line 1792 of yacc.c */
+#line 40 "parse_y.y"
+ {
+ printf("\n");
+ ++line;
+}
+ break;
+
+ case 4:
+/* Line 1792 of yacc.c */
+#line 44 "parse_y.y"
+ {
+ if (strlen((yyvsp[(2) - (3)].string)) > (PAPER_WIDTH-(indent ? strlen(INDENT_STRING):0))) {
+ yyerror("line too long");
+ }
+ printf("%s%s\n", indent ? INDENT_STRING:"", (yyvsp[(2) - (3)].string));
+ free((yyvsp[(2) - (3)].string));
+ indent = 1;
+ ++line;
+}
+ break;
+
+ case 5:
+/* Line 1792 of yacc.c */
+#line 53 "parse_y.y"
+ {
+ char fixed[PAPER_WIDTH+1];
+ int len;
+
+ len = PAPER_WIDTH-(strlen((yyvsp[(2) - (5)].string))+strlen((yyvsp[(4) - (5)].string)));
+
+ if (len >= 0) {
+ memset(fixed, ' ', len);
+ fixed[len] = '\0';
+ } else {
+ yyerror("line too wide");
+ fixed[0] = '\0';
+ }
+ printf("%s%s%s\n", (yyvsp[(2) - (5)].string), fixed, (yyvsp[(4) - (5)].string));
+ free((yyvsp[(2) - (5)].string));
+ free((yyvsp[(4) - (5)].string));
+ indent = 1;
+ ++line;
+}
+ break;
+
+ case 6:
+/* Line 1792 of yacc.c */
+#line 72 "parse_y.y"
+ {
+ char fixed[PAPER_WIDTH+1];
+ int len, l;
+
+ len = PAPER_WIDTH-(strlen((yyvsp[(2) - (7)].string))+strlen((yyvsp[(4) - (7)].string)));
+
+ if (len < 0) {
+ len = 0;
+ yyerror("line too wide");
+ }
+
+ l = len/2;
+ memset(fixed, ' ', l);
+ fixed[l] = '\0';
+ printf("%s%s%s", (yyvsp[(2) - (7)].string), fixed, (yyvsp[(4) - (7)].string));
+ free((yyvsp[(2) - (7)].string));
+ free((yyvsp[(4) - (7)].string));
+
+ l = (len+1)/2;
+ memset(fixed, ' ', l);
+ fixed[l] = '\0';
+ printf("%s%s\n", fixed, (yyvsp[(6) - (7)].string));
+ free((yyvsp[(6) - (7)].string));
+
+ indent = 1;
+ ++line;
+}
+ break;
+
+ case 7:
+/* Line 1792 of yacc.c */
+#line 99 "parse_y.y"
+ {
+ char fixed[PAPER_WIDTH+1];
+ int len, l;
+
+ len = PAPER_WIDTH-(strlen((yyvsp[(2) - (7)].string))+strlen((yyvsp[(4) - (7)].string)));
+
+ if (len < 0) {
+ len = 0;
+ yyerror("line too wide");
+ }
+
+ l = len/2;
+ memset(fixed, ' ', l);
+ fixed[l] = '\0';
+ printf("%s%s%s", (yyvsp[(2) - (7)].string), fixed, (yyvsp[(4) - (7)].string));
+ free((yyvsp[(2) - (7)].string));
+ free((yyvsp[(4) - (7)].string));
+
+ l = (len+1)/2;
+ memset(fixed, ' ', l);
+ fixed[l] = '\0';
+ printf("%s%s\n", fixed, (yyvsp[(6) - (7)].string));
+ free((yyvsp[(6) - (7)].string));
+
+ indent = 1;
+ ++line;
+}
+ break;
+
+ case 8:
+/* Line 1792 of yacc.c */
+#line 128 "parse_y.y"
+ {
+ (yyval.string) = strdup("");
+}
+ break;
+
+ case 9:
+/* Line 1792 of yacc.c */
+#line 131 "parse_y.y"
+ {
+ (yyval.string) = malloc(strlen((yyvsp[(1) - (2)].string))+strlen((yyvsp[(2) - (2)].string))+1);
+ sprintf((yyval.string),"%s%s", (yyvsp[(1) - (2)].string), (yyvsp[(2) - (2)].string));
+ free((yyvsp[(1) - (2)].string));
+ free((yyvsp[(2) - (2)].string));
+}
+ break;
+
+ case 10:
+/* Line 1792 of yacc.c */
+#line 139 "parse_y.y"
+ {
+ (yyval.string) = strdup(yytext);
+}
+ break;
+
+ case 11:
+/* Line 1792 of yacc.c */
+#line 142 "parse_y.y"
+ {
+ (yyval.string) = malloc(strlen((yyvsp[(1) - (2)].string))+2);
+ sprintf((yyval.string),"%s%s", (yyvsp[(1) - (2)].string), yytext);
+ free((yyvsp[(1) - (2)].string));
+}
+ break;
+
+ case 12:
+/* Line 1792 of yacc.c */
+#line 147 "parse_y.y"
+ {
+ (yyval.string) = strdup("");
+ indent = 0;
+}
+ break;
+
+ case 13:
+/* Line 1792 of yacc.c */
+#line 151 "parse_y.y"
+ {
+ (yyval.string) = strdup("#");
+}
+ break;
+
+ case 14:
+/* Line 1792 of yacc.c */
+#line 154 "parse_y.y"
+ {
+ if (((yyval.string) = get_label(yytext)) == NULL) {
+ set_label(yytext, last_label);
+ (yyval.string) = strdup("");
+ }
+}
+ break;
+
+ case 15:
+/* Line 1792 of yacc.c */
+#line 160 "parse_y.y"
+ {
+ (yyval.string) = new_counter(yytext);
+}
+ break;
+
+
+/* Line 1792 of yacc.c */
+#line 1563 "parse_y.c"
+ default: break;
+ }
+ /* User semantic actions sometimes alter yychar, and that requires
+ that yytoken be updated with the new translation. We take the
+ approach of translating immediately before every use of yytoken.
+ One alternative is translating here after every semantic action,
+ but that translation would be missed if the semantic action invokes
+ YYABORT, YYACCEPT, or YYERROR immediately after altering yychar or
+ if it invokes YYBACKUP. In the case of YYABORT or YYACCEPT, an
+ incorrect destructor might then be invoked immediately. In the
+ case of YYERROR or YYBACKUP, subsequent parser actions might lead
+ to an incorrect destructor call or verbose syntax error message
+ before the lookahead is translated. */
+ YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
+
+ YYPOPSTACK (yylen);
+ yylen = 0;
+ YY_STACK_PRINT (yyss, yyssp);
+
+ *++yyvsp = yyval;
+
+ /* Now `shift' the result of the reduction. Determine what state
+ that goes to, based on the state we popped back to and the rule
+ number reduced by. */
+
+ yyn = yyr1[yyn];
+
+ yystate = yypgoto[yyn - YYNTOKENS] + *yyssp;
+ if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp)
+ yystate = yytable[yystate];
+ else
+ yystate = yydefgoto[yyn - YYNTOKENS];
+
+ goto yynewstate;
+
+
+/*------------------------------------.
+| yyerrlab -- here on detecting error |
+`------------------------------------*/
+yyerrlab:
+ /* Make sure we have latest lookahead translation. See comments at
+ user semantic actions for why this is necessary. */
+ yytoken = yychar == YYEMPTY ? YYEMPTY : YYTRANSLATE (yychar);
+
+ /* If not already recovering from an error, report this error. */
+ if (!yyerrstatus)
+ {
+ ++yynerrs;
+#if ! YYERROR_VERBOSE
+ yyerror (YY_("syntax error"));
+#else
+# define YYSYNTAX_ERROR yysyntax_error (&yymsg_alloc, &yymsg, \
+ yyssp, yytoken)
+ {
+ char const *yymsgp = YY_("syntax error");
+ int yysyntax_error_status;
+ yysyntax_error_status = YYSYNTAX_ERROR;
+ if (yysyntax_error_status == 0)
+ yymsgp = yymsg;
+ else if (yysyntax_error_status == 1)
+ {
+ if (yymsg != yymsgbuf)
+ YYSTACK_FREE (yymsg);
+ yymsg = (char *) YYSTACK_ALLOC (yymsg_alloc);
+ if (!yymsg)
+ {
+ yymsg = yymsgbuf;
+ yymsg_alloc = sizeof yymsgbuf;
+ yysyntax_error_status = 2;
+ }
+ else
+ {
+ yysyntax_error_status = YYSYNTAX_ERROR;
+ yymsgp = yymsg;
+ }
+ }
+ yyerror (yymsgp);
+ if (yysyntax_error_status == 2)
+ goto yyexhaustedlab;
+ }
+# undef YYSYNTAX_ERROR
+#endif
+ }
+
+
+
+ if (yyerrstatus == 3)
+ {
+ /* If just tried and failed to reuse lookahead token after an
+ error, discard it. */
+
+ if (yychar <= YYEOF)
+ {
+ /* Return failure if at end of input. */
+ if (yychar == YYEOF)
+ YYABORT;
+ }
+ else
+ {
+ yydestruct ("Error: discarding",
+ yytoken, &yylval);
+ yychar = YYEMPTY;
+ }
+ }
+
+ /* Else will try to reuse lookahead token after shifting the error
+ token. */
+ goto yyerrlab1;
+
+
+/*---------------------------------------------------.
+| yyerrorlab -- error raised explicitly by YYERROR. |
+`---------------------------------------------------*/
+yyerrorlab:
+
+ /* Pacify compilers like GCC when the user code never invokes
+ YYERROR and the label yyerrorlab therefore never appears in user
+ code. */
+ if (/*CONSTCOND*/ 0)
+ goto yyerrorlab;
+
+ /* Do not reclaim the symbols of the rule which action triggered
+ this YYERROR. */
+ YYPOPSTACK (yylen);
+ yylen = 0;
+ YY_STACK_PRINT (yyss, yyssp);
+ yystate = *yyssp;
+ goto yyerrlab1;
+
+
+/*-------------------------------------------------------------.
+| yyerrlab1 -- common code for both syntax error and YYERROR. |
+`-------------------------------------------------------------*/
+yyerrlab1:
+ yyerrstatus = 3; /* Each real token shifted decrements this. */
+
+ for (;;)
+ {
+ yyn = yypact[yystate];
+ if (!yypact_value_is_default (yyn))
+ {
+ yyn += YYTERROR;
+ if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
+ {
+ yyn = yytable[yyn];
+ if (0 < yyn)
+ break;
+ }
+ }
+
+ /* Pop the current state because it cannot handle the error token. */
+ if (yyssp == yyss)
+ YYABORT;
+
+
+ yydestruct ("Error: popping",
+ yystos[yystate], yyvsp);
+ YYPOPSTACK (1);
+ yystate = *yyssp;
+ YY_STACK_PRINT (yyss, yyssp);
+ }
+
+ YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
+ *++yyvsp = yylval;
+ YY_IGNORE_MAYBE_UNINITIALIZED_END
+
+
+ /* Shift the error token. */
+ YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp);
+
+ yystate = yyn;
+ goto yynewstate;
+
+
+/*-------------------------------------.
+| yyacceptlab -- YYACCEPT comes here. |
+`-------------------------------------*/
+yyacceptlab:
+ yyresult = 0;
+ goto yyreturn;
+
+/*-----------------------------------.
+| yyabortlab -- YYABORT comes here. |
+`-----------------------------------*/
+yyabortlab:
+ yyresult = 1;
+ goto yyreturn;
+
+#if !defined yyoverflow || YYERROR_VERBOSE
+/*-------------------------------------------------.
+| yyexhaustedlab -- memory exhaustion comes here. |
+`-------------------------------------------------*/
+yyexhaustedlab:
+ yyerror (YY_("memory exhausted"));
+ yyresult = 2;
+ /* Fall through. */
+#endif
+
+yyreturn:
+ if (yychar != YYEMPTY)
+ {
+ /* Make sure we have latest lookahead translation. See comments at
+ user semantic actions for why this is necessary. */
+ yytoken = YYTRANSLATE (yychar);
+ yydestruct ("Cleanup: discarding lookahead",
+ yytoken, &yylval);
+ }
+ /* Do not reclaim the symbols of the rule which action triggered
+ this YYABORT or YYACCEPT. */
+ YYPOPSTACK (yylen);
+ YY_STACK_PRINT (yyss, yyssp);
+ while (yyssp != yyss)
+ {
+ yydestruct ("Cleanup: popping",
+ yystos[*yyssp], yyvsp);
+ YYPOPSTACK (1);
+ }
+#ifndef yyoverflow
+ if (yyss != yyssa)
+ YYSTACK_FREE (yyss);
+#endif
+#if YYERROR_VERBOSE
+ if (yymsg != yymsgbuf)
+ YYSTACK_FREE (yymsg);
+#endif
+ /* Make sure YYID is used. */
+ return YYID (yyresult);
+}
+
+
+/* Line 2055 of yacc.c */
+#line 165 "parse_y.y"
+
+
+typedef struct node_s {
+ struct node_s *left, *right;
+ const char *key;
+ char *value;
+} *node_t;
+
+node_t label_root = NULL;
+node_t counter_root = NULL;
+
+static const char *find_key(node_t root, const char *key)
+{
+ while (root) {
+ int cmp = strcmp(key, root->key);
+
+ if (cmp > 0) {
+ root = root->right;
+ } else if (cmp) {
+ root = root->left;
+ } else {
+ return root->value;
+ }
+ }
+ return NULL;
+}
+
+static node_t set_key(node_t root, const char *key, const char *value)
+{
+ if (root) {
+ int cmp = strcmp(key, root->key);
+ if (cmp > 0) {
+ root->right = set_key(root->right, key, value);
+ } else if (cmp) {
+ root->left = set_key(root->left, key, value);
+ } else {
+ free(root->value);
+ root->value = strdup(value);
+ }
+ } else {
+ root = malloc(sizeof(struct node_s));
+ root->right = root->left = NULL;
+ root->key = strdup(key);
+ root->value = strdup(value);
+ }
+ return root;
+}
+
+void yyerror(const char *x)
+{
+ fprintf(stderr, "line %d: %s\n", line, x);
+}
+
+char *get_label(const char *label)
+{
+ const char *found = find_key(label_root, label);
+
+ if (found) {
+ return strdup(found);
+ }
+ return NULL;
+}
+
+void set_label(const char *label, const char *target)
+{
+ if (target == NULL) {
+ yyerror("no hanging value for label");
+ target = "<??" ">"; /* avoid trigraph warning */
+ }
+ label_root = set_key(label_root, label, target);
+}
+
+char *new_counter(const char *key)
+{
+ int i=0, j, ndollars = 0;
+ const char *old;
+ char *new;
+
+ if (key[i++] != '#') {
+ yyerror("bad index");
+ return strdup("<???" ">"); /* avoid trigraph warning */
+ }
+
+ while (key[i] == '$') {
+ ++ndollars;
+ ++i;
+ }
+
+ key += i;
+ old = find_key(counter_root, key);
+ new = malloc(20*ndollars);
+
+ if (old) {
+ for (j=0; ndollars > 1 && old[j]; ) {
+ if (old[j++] == '.' && --ndollars <= 0) {
+ break;
+ }
+ }
+ if (j) {
+ strncpy(new, old, j);
+ }
+ if (old[j]) {
+ i = atoi(old+j);
+ } else {
+ new[j++] = '.';
+ i = 0;
+ }
+ } else {
+ j=0;
+ while (--ndollars > 0) {
+ new[j++] = '0';
+ new[j++] = '.';
+ }
+ i = 0;
+ }
+ new[j] = '\0';
+ sprintf(new+j, "%d", ++i);
+
+ counter_root = set_key(counter_root, key, new);
+
+ if (last_label) {
+ free(last_label);
+ }
+ last_label = strdup(new);
+
+ return new;
+}
+
+int
+main(void)
+{
+ return yyparse();
+}
diff --git a/doc/specs/parse_y.h b/doc/specs/parse_y.h
new file mode 100644
index 00000000..4323b3e7
--- /dev/null
+++ b/doc/specs/parse_y.h
@@ -0,0 +1,103 @@
+/* A Bison parser, made by GNU Bison 2.7. */
+
+/* Bison interface for Yacc-like parsers in C
+
+ Copyright (C) 1984, 1989-1990, 2000-2012 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* As a special exception, you may create a larger work that contains
+ part or all of the Bison parser skeleton and distribute that work
+ under terms of your choice, so long as that work isn't itself a
+ parser generator using the skeleton or a modified version thereof
+ as a parser skeleton. Alternatively, if you modify or redistribute
+ the parser skeleton itself, you may (at your option) remove this
+ special exception, which will cause the skeleton and the resulting
+ Bison output files to be licensed under the GNU General Public
+ License without this special exception.
+
+ This special exception was added by the Free Software Foundation in
+ version 2.2 of Bison. */
+
+#ifndef YY_YY_PARSE_Y_H_INCLUDED
+# define YY_YY_PARSE_Y_H_INCLUDED
+/* Enabling traces. */
+#ifndef YYDEBUG
+# define YYDEBUG 0
+#endif
+#if YYDEBUG
+extern int yydebug;
+#endif
+
+/* Tokens. */
+#ifndef YYTOKENTYPE
+# define YYTOKENTYPE
+ /* Put the tokens into the symbol table, so that GDB and other debuggers
+ know about them. */
+ enum yytokentype {
+ NEW_COUNTER = 258,
+ LABEL = 259,
+ HASH = 260,
+ CHAR = 261,
+ NEWLINE = 262,
+ NO_INDENT = 263,
+ RIGHT = 264
+ };
+#endif
+/* Tokens. */
+#define NEW_COUNTER 258
+#define LABEL 259
+#define HASH 260
+#define CHAR 261
+#define NEWLINE 262
+#define NO_INDENT 263
+#define RIGHT 264
+
+
+
+#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
+typedef union YYSTYPE
+{
+/* Line 2058 of yacc.c */
+#line 27 "parse_y.y"
+
+ int def;
+ char *string;
+
+
+/* Line 2058 of yacc.c */
+#line 81 "parse_y.h"
+} YYSTYPE;
+# define YYSTYPE_IS_TRIVIAL 1
+# define yystype YYSTYPE /* obsolescent; will be withdrawn */
+# define YYSTYPE_IS_DECLARED 1
+#endif
+
+extern YYSTYPE yylval;
+
+#ifdef YYPARSE_PARAM
+#if defined __STDC__ || defined __cplusplus
+int yyparse (void *YYPARSE_PARAM);
+#else
+int yyparse ();
+#endif
+#else /* ! YYPARSE_PARAM */
+#if defined __STDC__ || defined __cplusplus
+int yyparse (void);
+#else
+int yyparse ();
+#endif
+#endif /* ! YYPARSE_PARAM */
+
+#endif /* !YY_YY_PARSE_Y_H_INCLUDED */