NAME
	send_message - send a message to a user

SYNOPSIS
	int send_message(string message)
	int send_message(int echo)


DESCRIPTION
	In the first form, send a message to the user associated with the
	current object.  In the second form, user input echoing will be
	turned off or on, the value of echo being zero or non-zero,
	respectively.  Used by the driver object, send_message() will write
	the message on stderr.
	For binary connections, send_message() will return 1 if the
	operation succeeded, 0 otherwise.  For telnet connections, the
	return value is always 1.

SEE ALSO
	kfun/query_ip_number, kfun/this_user, kfun/users
