'\" t
.\"     Title: modbus_receive
.\"    Author: [see the "AUTHORS" section]
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: 10/18/2014
.\"    Manual: Libmodbus Manual
.\"    Source: libmodbus 3.0.6
.\"  Language: English
.\"
.TH "MODBUS_RECEIVE" "3" "10/18/2014" "libmodbus 3\&.0\&.6" "Libmodbus Manual"
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.SH "NAME"
modbus_receive \- receive a indication request
.SH "SYNOPSIS"
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\fBint modbus_receive(modbus_t *\fR\fB\fIctx\fR\fR\fB, uint8_t *\fR\fB\fIreq\fR\fR\fB);\fR
.SH "DESCRIPTION"
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The \fImodbus_receive()\fR function shall receive an indication request from the socket of the context \fIctx\fR\&. This function is used by Modbus slave/server to receive and analyze indication request sent by the masters/clients\&.
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If you need to use another socket or file descriptor than the one defined in the context \fIctx\fR, see the function \fBmodbus_set_socket\fR(3)\&.
.SH "RETURN VALUE"
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The \fImodbus_receive()\fR function shall store the indication request in \fIreq\fR and return the request length if sucessful\&. Otherwise it shall return \-1 and set errno\&.
.SH "SEE ALSO"
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\fBmodbus_set_socket\fR(3) \fBmodbus_reply\fR(3)
.SH "AUTHORS"
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The libmodbus documentation was written by St\('ephane Raimbault <\m[blue]\fBstephane\&.raimbault@gmail\&.com\fR\m[]\&\s-2\u[1]\d\s+2>
.SH "NOTES"
.IP " 1." 4
stephane.raimbault@gmail.com
.RS 4
\%mailto:stephane.raimbault@gmail.com
.RE