Previously you would have to do something like this:
for (type foo = (type) list_get_first(list); foo; foo = (type) list_get_next(list)
{
/* code */
}
Now, you can instead write this as:
LIST_FOREACH(type, foo, list,
{
/* code */
})
Basically, boilerplate stuff including the casting is gone.
If a valid escape (\n, \s, or \\) is found, increment the pointer
marking the start of the next search so we don't start looking at the
escaped character. The old behaviour was a problem for messages
containing slashes -- the escaped slash would be looked at in the next
pass and so the following character would be treated as an escape,
causing the message to be dropped for having "an invalid ADC escape".
uhub did not have this security bug since the hub did not advertise support for the
UCMD extension, but the message was still correctly relayed as specified in the
protocol specification.
However, this commit adds support for the UCMD extension, but only to the extent
that uhub will advertise it and uhub will also drop any such CMD message
generated by a client and will (currently) never issues a CMD message by itself.
This also deprecates the built-in chat_only configuration option.
If you need this functionality, then load the mod_chat_only plugin (if it is loaded then only operators
are able to search, connect, etc).
Dynamic commands are user commands that can be added dynamically to
the hub by a plugin.
The example plugin (mod_example.c) adds a !example command that when
invoked send a message to the user who invoked it.
This revealed a few bugs:
* when sid allocator is full, then uhub will loop indefinitely when allocating one more (unlikely to occur).
* looking up a user object based on a sid that is out of range (off by one) returns invalid memory.
