FILE
	/usr/common/sys/channeld.c

NAME
	subscribe_user - subscribe a user to a channel

PROTOTYPE
	int subscribe_user(object user, int channel, varargs int arg)

CALLED BY
	System, Common, Game

DESCRIPTION
	Subscribe the user to the given channel.  When content is sent
	on the channel, the user will receive it.

RETURN VALUE
	Returns -1 if the user cannot be subscribed for some reason.
	Returns 1 if the subscription is successful.

ERRORS
	Normally none

SEE ALSO
	channel_list, get_channel_by_name, string_to_channel, unsubscribe_user