18 300 s ; Auto (think GSS-API)
24 503 ; Already logging in
26 505 d s ; Back-end error
27 506 ; Authentication error
28 508 ; No such authentication mechanism
39 507 ; Data not expected
55 200 s s ; Peer ID and nick are standardized, so they can be here -- the rest have to be extracted manually
129 : ; Nameless notification
130 600 i i s s s ; FN chat
131 601 i i ; FN state change
132 602 i s ; FN name change
135 605 i i ; FN num peers change
136 610 i i s s ; Transfer create
137 611 i i ; Transfer state change
138 612 i s ; Transfer nick change
139 613 i i ; Transfer size change
140 614 i i ; Transfer error update
141 615 i i ; Transfer progress
142 616 i s ; Transfer path change
143 617 i s ; Transfer destroy
144 618 i s ; Transfer hash update
147 622 i s s s i i i f s
150 632 i s s ; More data follows, but cannot be handled by dc_interpret
151 640 s ; Client-to-client message, also variable length
152 : ; Nameless connection
153 200 s ; Old, non-versioned welcome message
154 201 i i s ; New, versioned message -- supported revisions are i1 to i2, incl.