59 lines
2.7 KiB
Groff
59 lines
2.7 KiB
Groff
'\" t
|
|
.\" Title: upscli_readline
|
|
.\" 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_READLINE" "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_readline, upscli_readline_timeout \- read a single response from a UPS
|
|
.SH "SYNOPSIS"
|
|
.sp
|
|
.nf
|
|
#include <upsclient\&.h>
|
|
#include <time\&.h> /* or <sys/time\&.h> on some platforms */
|
|
.fi
|
|
.sp
|
|
.nf
|
|
int upscli_readline(UPSCONN_t *ups, char *buf, size_t buflen);
|
|
.fi
|
|
.sp
|
|
.nf
|
|
int upscli_readline_timeout(UPSCONN_t *ups, char *buf, size_t buflen,
|
|
const time_t timeout);
|
|
.fi
|
|
.SH "DESCRIPTION"
|
|
.sp
|
|
The \fBupscli_readline()\fR and \fBupscli_readline_timeout()\fR functions take the pointer \fIups\fR to a UPSCONN_t state structure, receive a single line from the server, and copy up to \fIbuflen\fR bytes of the response into the buffer \fIbuf\fR\&.
|
|
.sp
|
|
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\&.
|
|
.sp
|
|
The difference between the two functions is that \fBupscli_readline_timeout()\fR lets the caller decide the amount of time (\fItimeout\fR seconds) after which it should give up and return, whereas \fBupscli_readline()\fR does not offer this freedom, and uses NUT default network timeout (5 seconds)\&.
|
|
.SH "RETURN VALUE"
|
|
.sp
|
|
The \fBupscli_readline()\fR and \fBupscli_readline_timeout()\fR functions return 0 on success, or \-1 if an error occurs\&.
|
|
.SH "SEE ALSO"
|
|
.sp
|
|
\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)
|