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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 12:01:37 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 12:01:37 +0000
commitde848d9e9146434817c65d74d1d0313e9d729462 (patch)
treedcbd0efb229b17f696f7195671f05b354b4f70fc /doc/man/pam_authenticate.3
parentInitial commit. (diff)
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Adding upstream version 1.4.0.upstream/1.4.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+'\" t
+.\" Title: pam_authenticate
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\" Date: 06/08/2020
+.\" Manual: Linux-PAM Manual
+.\" Source: Linux-PAM Manual
+.\" Language: English
+.\"
+.TH "PAM_AUTHENTICATE" "3" "06/08/2020" "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)