nut/docs/man/upscli_upserror.3

'\" t
.\"     Title: upscli_upserror
.\"    Author: [FIXME: author] [see http://www.docbook.org/tdg5/en/html/author]
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\"      Date: 04/26/2022
.\"    Manual: NUT Manual
.\"    Source: Network UPS Tools 2.8.0
.\"  Language: English
.\"
.TH "UPSCLI_UPSERROR" "3" "04/26/2022" "Network UPS Tools 2\&.8\&.0" "NUT 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"
upscli_upserror \- Get current error number for connection
.SH "SYNOPSIS"
.sp
.nf
#include <upsclient\&.h>
.fi
.sp
.nf
int upscli_upserror(UPSCONN_t *ups);
.fi
.SH "DESCRIPTION"
.sp
The \fBupscli_upserror\fR() function takes the pointer \fIups\fR to a UPSCONN_t state structure and returns the value of the internal error number, if any\&.
.sp
This is typically used to check for certain error values like UPSCLI_ERR_UNKCOMMAND\&. That specific error can be used for detecting older versions of \fBupsd\fR(8) which might not support a given command\&.
.sp
Some error messages have additional meanings, so you should use \fBupscli_strerror\fR(3) to obtain readable error messages\&.
.SH "RETURN VALUE"
.sp
The \fBupscli_upserror\fR() function returns one of the UPSCLI_ERR_* values from upsclient\&.h, or 0 if no error has occurred\&.
.SH "SEE ALSO"
.sp
\fBupscli_readline\fR(3), \fBupscli_sendline\fR(3), \fBupscli_strerror\fR(3)