'\" t
.\"     Title: upscli_add_host_cert
.\"    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 "UPSCLI_ADD_HOST_CERT" "3" "06/21/2026" "Network UPS Tools 2\&.8\&.5" "NUT Manual"
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.SH "NAME"
upscli_add_host_cert \- Register a security rule for an host\&.
.SH "SYNOPSIS"
.sp
.nf
        #include <upsclient\&.h>

        void upscli_add_host_cert(
                const char* hostname,
                const char* certname,
                int certverify,
                int forcessl);
.fi
.SH "DESCRIPTION"
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The \fBupscli_add_host_cert()\fR function registers a security rule associated to the \fIhostname\fR\&. All connections to this host use this rule\&.
.sp
The rule is composed of the certificate name \fIcertname\fR expected for the host, \fIcertverify\fR if the certificate must be validated for the host and \fIforcessl\fR if a secured connection must be used to connect to the host\&.
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This call currently only functions if libupsclient has been compiled with NSS support\&. If instead it was compiled with OpenSSL support, this method contains an empty definition and will take no action when called\&. Starting with NUT v2\&.8\&.5, you can use \fBupscli_ssl_caps\fR(3) from consumer code to query the library about its build circumstances (whether it supports SSL, and which backend(s))\&.
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.SH "RETURN VALUE"
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\fBupscli_add_host_cert()\fR returns no value\&.
.SH "SEE ALSO"
.sp
\fBupscli_init\fR(3), \fBupscli_connect\fR(3), \fBupscli_ssl\fR(3), \fBupscli_ssl_caps\fR(3), \fBupscli_strerror\fR(3), \fBupscli_upserror\fR(3)