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ACCF_DATA (9) | Kernel routines | Unix Manual Pages | :man

NAME

accf_data - buffer incoming connections until data arrives

CONTENTS

Synopsis
Description
Examples
See Also
History
Authors

SYNOPSIS

options INET options ACCEPT_FILTER_DATA kldload accf_data

DESCRIPTION

This is a filter to be placed on a socket that will be using accept to receive incoming connections.

It prevents the application from receiving the connected descriptor via accept until data arrives on the connection.

The ACCEPT_FILTER_DATA kernel option is also a module that can be enabled at runtime via kldload(8) if the INET option has been compiled into the kernel.

EXAMPLES

Assuming ACCEPT_FILTER_DATA has been included in the kernel config file or the accf_data module has been loaded, this will enable the data accept filter on the socket sok.
struct accept_filter_arg afa;


bzero(&afa, sizeof(afa));
strcpy(afa.af_name, "dataready");
setsockopt(sok, SOL_SOCKET, SO_ACCEPTFILTER, &afa, sizeof(afa));

SEE ALSO

setsockopt(2), accept_filter(9), accf_http(9)

HISTORY

AUTHORS


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