'\" t
.\"     Title: libnutclient_misc
.\"    Author: [FIXME: author] [see http://www.docbook.org/tdg5/en/html/author]
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\"      Date: 06/21/2026
.\"    Manual: NUT Manual
.\"    Source: Network UPS Tools 2.8.5
.\"  Language: English
.\"
.TH "LIBNUTCLIENT_MISC" "3" "06/21/2026" "Network UPS Tools 2\&.8\&.5" "NUT Manual"
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.nh
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.\" * MAIN CONTENT STARTS HERE *
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.SH "NAME"
libnutclient_misc, nutclient_authenticate, nutclient_logout, nutclient_device_login, nutclient_get_device_num_logins, nutclient_device_master, nutclient_device_forced_shutdown \- Miscellaneous functions in Network UPS Tools high\-level client access library
.SH "SYNOPSIS"
.sp
.nf
        #include <nutclient\&.h>

        typedef void* NUTCLIENT_t;

        void nutclient_authenticate(
                NUTCLIENT_t client,
                const char* login, const char* passwd);

        void nutclient_logout(NUTCLIENT_t client);

        void nutclient_device_login(NUTCLIENT_t client, const char* dev);

        int nutclient_get_device_num_logins(NUTCLIENT_t client, const char* dev);

        void nutclient_device_primary(NUTCLIENT_t client, const char* dev);
        /* OBSOLETED name: */
        void nutclient_device_master(NUTCLIENT_t client, const char* dev);

        void nutclient_device_forced_shutdown(NUTCLIENT_t client, const char* dev);
.fi
.SH "DESCRIPTION"
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
The
\fBnutclient_authenticate()\fR
function authenticates the user\&.
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fIlogin\fR
is the user name\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fIpasswd\fR
is the user password\&.
.RE
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
The
\fBnutclient_logout()\fR
function disconnects gracefully from the server\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
The
\fBnutclient_device_login()\fR
function logs the fact that a system is drawing power from this UPS\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
The
\fBnutclient_get_device_num_logins()\fR
function retrieves the number of clients which have been logged for this device\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
The
\fBnutclient_device_master()\fR
and
\fBnutclient_device_primary()\fR
(note: the former is obsoleted since NUT v2\&.8\&.0 in favor of the latter) functions make sure that primary\-mode functions like FSD are available if necessary\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
The
\fBnutclient_device_forced_shutdown()\fR
function sets the "forced shutdown" (FSD) flag on the device\&.
.RE
.sp
Common arguments:
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
\fIdev\fR
is the device name\&.
.RE
.SH "SEE ALSO"
.sp
\fBlibnutclient\fR(3)