'\" t
.\"     Title: kernel_recvmsg
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: July 2017
.\"    Manual: Linux Networking
.\"    Source: Kernel Hackers Manual 4.11.6
.\"  Language: English
.\"
.TH "KERNEL_RECVMSG" "9" "July 2017" "Kernel Hackers Manual 4\&.11\&" "Linux Networking"
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.SH "NAME"
kernel_recvmsg \- Receive a message from a socket (kernel space)
.SH "SYNOPSIS"
.HP \w'int\ kernel_recvmsg('u
.BI "int kernel_recvmsg(struct\ socket\ *\ " "sock" ", struct\ msghdr\ *\ " "msg" ", struct\ kvec\ *\ " "vec" ", size_t\ " "num" ", size_t\ " "size" ", int\ " "flags" ");"
.SH "ARGUMENTS"
.PP
\fIstruct socket * sock\fR
.RS 4
The socket to receive the message from
.RE
.PP
\fIstruct msghdr * msg\fR
.RS 4
Received message
.RE
.PP
\fIstruct kvec * vec\fR
.RS 4
Input s/g array for message data
.RE
.PP
\fIsize_t num\fR
.RS 4
Size of input s/g array
.RE
.PP
\fIsize_t size\fR
.RS 4
Number of bytes to read
.RE
.PP
\fIint flags\fR
.RS 4
Message flags (MSG_DONTWAIT, etc\&.\&.\&.)
.RE
.SH "DESCRIPTION"
.PP
On return the msg structure contains the scatter/gather array passed in the vec argument\&. The array is modified so that it consists of the unfilled portion of the original array\&.
.PP
The returned value is the total number of bytes received, or an error\&.
.SH "COPYRIGHT"
.br