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
117 200 i ; Followed by (hash-type number) pairs
136 : ; Nameless notification
137 600 i i s s s ; FN chat
138 601 i i ; FN state change
139 602 i s ; FN name change
142 605 i i ; FN num peers change
143 610 i i s s ; Transfer create
144 611 i i ; Transfer state change
145 612 i s ; Transfer nick change
146 613 i I ; Transfer size change
147 614 i i ; Transfer error update
148 615 i I ; Transfer progress
149 616 i s ; Transfer path change
150 617 i s ; Transfer destroy
151 618 i s ; Transfer hash update
154 622 i s s s I i i f s
157 632 i s s ; More data follows, but cannot be handled by dc_interpret
158 640 s ; Client-to-client message, also variable length
159 : ; Nameless connection
160 200 s ; Old, non-versioned welcome message
161 201 i i s ; New, versioned message -- supported revisions are i1 to i2, incl.