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.\"     Title: upscli_readline
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: 03/02/2016
.\"    Manual: NUT Manual
.\"    Source: Network UPS Tools 2.7.3.1
.\"  Language: English
.\"
.TH "UPSCLI_READLINE" "3" "03/02/2016" "Network UPS Tools 2\&.7\&.3\&." "NUT Manual"
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.SH "NAME"
upscli_readline \- read a single response from a UPS
.SH "SYNOPSIS"
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#include <upsclient\&.h>
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int upscli_readline(UPSCONN_t *ups, char *buf, size_t buflen);
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.SH "DESCRIPTION"
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The \fBupscli_readline()\fR function takes the pointer \fIups\fR to a UPSCONN_t state structure, receives a single line from the server, and copies up to \fIbuflen\fR bytes of the response into the buffer \fIbuf\fR\&.
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Some parsing of the string occurs during reception\&. In particular, ERR messages from \fBupsd\fR(8) are detected and will cause this function to return \-1\&.
.SH "RETURN VALUE"
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The \fBupscli_readline()\fR function returns 0 on success, or \-1 if an error occurs\&.
.SH "SEE ALSO"
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\fBupscli_fd\fR(3), \fBupscli_get\fR(3), \fBupscli_readline\fR(3), \fBupscli_sendline\fR(3), \fBupscli_ssl\fR(3), \fBupscli_strerror\fR(3), \fBupscli_upserror\fR(3)