kernel_recvmsg (9) - Linux Man Pages

kernel_recvmsg: Receive a message from a socket (kernel space)

NAME

kernel_recvmsg - Receive a message from a socket (kernel space)

SYNOPSIS

int kernel_recvmsg(struct socket sock, struct msghdr msg, struct kvec vec, size_t num, size_t size, int flags);

ARGUMENTS

sock

The socket to receive the message from

msg

Received message

vec

Input s/g array for message data

num

Size of input s/g array

size

Number of bytes to read

flags

Message flags (MSG_DONTWAIT, etc...)

DESCRIPTION

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.

The returned value is the total number of bytes received, or an error.

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