IP Multicast
[Network Routines]

Functions
apr_status_t	apr_mcast_join (apr_socket_t *sock, apr_sockaddr_t *join, apr_sockaddr_t *iface, apr_sockaddr_t *source)
apr_status_t	apr_mcast_leave (apr_socket_t *sock, apr_sockaddr_t *addr, apr_sockaddr_t *iface, apr_sockaddr_t *source)
apr_status_t	apr_mcast_hops (apr_socket_t *sock, apr_byte_t ttl)
apr_status_t	apr_mcast_loopback (apr_socket_t *sock, apr_byte_t opt)
apr_status_t	apr_mcast_interface (apr_socket_t *sock, apr_sockaddr_t *iface)

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Function Documentation

apr_status_t apr_mcast_hops	(	apr_socket_t *	sock,
		apr_byte_t	ttl
	)

Set the Multicast Time to Live (ttl) for a multicast transmission.

Parameters:

sock

The socket to set the multicast ttl Parameters: ttl  Time to live to Assign. 0-255, default=1 Remarks: If the TTL is 0, packets will only be seen by sockets on the local machine, and only when multicast loopback is enabled.

apr_status_t apr_mcast_interface	(	apr_socket_t *	sock,
		apr_sockaddr_t *	iface
	)

Set the Interface to be used for outgoing Multicast Transmissions.

Parameters:

sock

The socket to set the multicast interface on Parameters: iface  Address of the interface to use for Multicast

apr_status_t apr_mcast_join	(	apr_socket_t *	sock,
		apr_sockaddr_t *	join,
		apr_sockaddr_t *	iface,
		apr_sockaddr_t *	source
	)

Join a Multicast Group

Parameters:

sock

The socket to join a multicast group Parameters: join  The address of the multicast group to join Parameters: iface  Address of the interface to use. If NULL is passed, the default multicast interface will be used. (OS Dependent) Parameters: source  Source Address to accept transmissions from (non-NULL implies Source-Specific Multicast)

apr_status_t apr_mcast_leave	(	apr_socket_t *	sock,
		apr_sockaddr_t *	addr,
		apr_sockaddr_t *	iface,
		apr_sockaddr_t *	source
	)

Leave a Multicast Group. All arguments must be the same as apr_mcast_join.

Parameters:

sock

The socket to leave a multicast group Parameters: addr  The address of the multicast group to leave Parameters: iface  Address of the interface to use. If NULL is passed, the default multicast interface will be used. (OS Dependent) Parameters: source  Source Address to accept transmissions from (non-NULL implies Source-Specific Multicast)

apr_status_t apr_mcast_loopback	(	apr_socket_t *	sock,
		apr_byte_t	opt
	)

Toggle IP Multicast Loopback

Parameters:

sock

The socket to set multicast loopback Parameters: opt  0=disable, 1=enable