sctp_darn(1) General Commands Manual sctp_darn(1)
NAME
sctp_darn - Send and receive messages via SCTP
SYNOPSIS
sctp_darn -H local_address -P local_port [-h remote_host] [-p re-
mote_port] -l|s
DESCRIPTION
This is a userspace test application for the SCTP Linux kernel refer-
ence implementation state machine. It is vaguely inspired by Stevens'
program "sock".
It has the limited ability to send messages and to listen for messages
sent via SCTP.
OPTIONS
-H, --local local_address
specify one of the local addresses
-P, --local-port local_port
specify the port number for local addresses
-h, --remote remote_address
specify the peer address
-p, --remote-port remote_port
specify the port number for the peer address
-l, --listen
print messages received from the peer
-s, --send
send messages to the peer
-B, --bindx-add address
add the specified address(es) as additional bind addresses to
the local socket. Multiple addresses can be specified by this
argument multiple times. For example, '-B 10.0.0.1 -B
20.0.0.2'.
-b, --bindx-rem address
remove the specified address(es) from the bind addresses of the
local socket. Multiple addresses can be specified by this argu-
ment multiple times. For example, '-b 10.0.0.1 -b 20.0.0.2'.
-I use the interactive mode.
-i setup the specified number of endpoints by using the specified
local host (-H) and local port (-P). The port number will be in-
cremented by one for each additional endpoint. All of these
endpoints will be listening. If a remote host (-h) and a remote
port are also specified, the first endpoint will start sending
fixed sized messages to the remote host.
-m size
specify the sockopt sndbuf/rcvbuf size.
-n set the socket(s) to be in the non-blocking mode. collect mes-
sages from stdin and deliver them to the peer
--use-poll
use system call poll() for polling among the number of endpoints
specified by the -i option. Without this option, select() would
be used as default.
-t use SOCK_STREAM tcp-style sockets.
-z size
specify the message size to be sent. The default message size
generated would be 16K.
--interface ifname
select interface for sin6_scope_id.
AUTHOR
Michael Biebl <biebl@debian.org>
sctp_darn(1)
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