TSIX_SENDTO_MAC(3N)					   TSIX_SENDTO_MAC(3N)

NAME    [Toc]    [Back]

     tsix_sendto_mac - send a message with a specified MAC label

SYNOPSIS    [Toc]    [Back]

     #include <sys/mac.h>
     #include <t6net.h>

     int tsix_sendto_mac(int fd, const void *msg, int len,
			 int flags, void *to, int tolen,
			 mac_t lbl);

DESCRIPTION    [Toc]    [Back]

     tsix_sendto_mac transmits a message to another socket, temporarily
     overriding	the default MAC	label associated with that message with	the
     MAC label pointed to by lbl.  tsix_sendto_mac is otherwise	identical to
     sendto(2).

CAPABILITIES    [Toc]    [Back]

     tsix_sendto_mac requires the same capabilities as its undelying function
     t6sendto.

     If	_SC_CAP	is in effect, a	process	calling	this function must have
     CAP_MAC_UPGRADE, CAP_MAC_DOWNGRADE, CAP_MAC_RELABEL_OPEN, and CAP_MAC_MLD
     capabilities in the permitted vector of its capability set.

RETURN VALUES    [Toc]    [Back]

     If	_SC_IP_SECOPTS is not in effect, tsix_sendto_mac always	returns
     success.

     tsix_sendto_mac returns the number	of bytes sent, or -1 if	an error
     occurred.

ERRORS    [Toc]    [Back]

     [EINVAL]	    Invalid argument.

     [ENOSYS]	    Function not implemented.

     [EBADF]	    An invalid descriptor was specified.

     [ENOTSOCK]	    The	argument s is not a socket.

     [EFAULT]	    An invalid user space address was specified	for a
		    parameter.

     [EMSGSIZE]	    The	socket requires	that message be	sent atomically, and
		    the	size of	the message to be sent made this impossible.

     [EWOULDBLOCK]  The	socket is marked non-blocking and the requested
		    operation would block.






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TSIX_SENDTO_MAC(3N)					   TSIX_SENDTO_MAC(3N)



     [ENOBUFS]	    The	system was unable to allocate an internal buffer.  The
		    operation may succeed when buffers become available.

     [ECONNREFUSED] The	remote port was	invalid	when using the send call on a
		    connected datagram socket.

     [EISCONN]	    A sendto or	sendmsg	call was used on a connected socket.

     [EACCES]	    The	requested operation specified a	broadcast address as
		    the	destination but	the SO_BROADCAST socket	option was not
		    enabled (see setsockopt(2)).

     [EHOSTUNREACH] The	remote host was	unreachable via	the network.

     [ENETUNREACH]  The	remote network is unknown to the routing system.

     [EHOSTDOWN]    The	remote host was	determined to be down, possibly	due to
		    a failure to resolve its MAC-level address (see arp(7P)).

     [EINTR]	    The	operation was interrupted by delivery of a signal
		    before any data could be buffered to be sent.

     [ENOMEM]	    There was insufficient memory available to complete	the
		    operation.

     [ENOSR]	    There were insufficient STREAMS resources available	for
		    the	operation to complete.

SEE ALSO    [Toc]    [Back]

     sendto(2),	sysconf(3c), tsix_recvfrom_mac(3c), t6sendto(3n)


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