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212380e3 AC |
1 | /* |
2 | * ircd-ratbox: A slightly useful ircd. | |
3 | * m_away.c: Negotiates capabilities with a remote server. | |
4 | * | |
5 | * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center | |
6 | * Copyright (C) 1996-2002 Hybrid Development Team | |
7 | * Copyright (C) 2002-2005 ircd-ratbox development team | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
22 | * USA | |
23 | * | |
24 | * $Id: m_capab.c 1295 2006-05-08 13:05:25Z nenolod $ | |
25 | */ | |
26 | ||
27 | #include "stdinc.h" | |
28 | #include "client.h" | |
29 | #include "irc_string.h" | |
30 | #include "s_serv.h" | |
31 | #include "s_conf.h" | |
32 | #include "msg.h" | |
33 | #include "parse.h" | |
34 | #include "modules.h" | |
35 | ||
36 | static int mr_capab(struct Client *, struct Client *, int, const char **); | |
37 | static int me_gcap(struct Client *, struct Client *, int, const char **); | |
38 | ||
39 | struct Message capab_msgtab = { | |
40 | "CAPAB", 0, 0, 0, MFLG_SLOW | MFLG_UNREG, | |
41 | {{mr_capab, 0}, mg_ignore, mg_ignore, mg_ignore, mg_ignore, mg_ignore} | |
42 | }; | |
43 | struct Message gcap_msgtab = { | |
44 | "GCAP", 0, 0, 0, MFLG_SLOW, | |
45 | {mg_ignore, mg_ignore, mg_ignore, mg_ignore, {me_gcap, 2}, mg_ignore} | |
46 | }; | |
47 | ||
48 | mapi_clist_av1 capab_clist[] = { &capab_msgtab, &gcap_msgtab, NULL }; | |
49 | DECLARE_MODULE_AV1(capab, NULL, NULL, capab_clist, NULL, NULL, "$Revision: 1295 $"); | |
50 | ||
51 | /* | |
52 | * mr_capab - CAPAB message handler | |
53 | * parv[0] = sender prefix | |
54 | * parv[1] = space-separated list of capabilities | |
55 | * | |
56 | */ | |
57 | static int | |
58 | mr_capab(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
59 | { | |
60 | struct Capability *cap; | |
61 | int i; | |
62 | char *p; | |
63 | char *s; | |
64 | ||
65 | /* ummm, this shouldn't happen. Could argue this should be logged etc. */ | |
66 | if(client_p->localClient == NULL) | |
67 | return 0; | |
68 | ||
69 | if(client_p->user) | |
70 | return 0; | |
71 | ||
72 | /* CAP_TS6 is set in PASS, so is valid.. */ | |
73 | if((client_p->localClient->caps & ~CAP_TS6) != 0) | |
74 | { | |
75 | exit_client(client_p, client_p, client_p, "CAPAB received twice"); | |
76 | return 0; | |
77 | } | |
78 | else | |
79 | client_p->localClient->caps |= CAP_CAP; | |
80 | ||
81 | MyFree(client_p->localClient->fullcaps); | |
82 | DupString(client_p->localClient->fullcaps, parv[1]); | |
83 | ||
84 | for (i = 1; i < parc; i++) | |
85 | { | |
86 | char *t = LOCAL_COPY(parv[i]); | |
87 | for (s = strtoken(&p, t, " "); s; s = strtoken(&p, NULL, " ")) | |
88 | { | |
89 | for (cap = captab; cap->name; cap++) | |
90 | { | |
91 | if(!irccmp(cap->name, s)) | |
92 | { | |
93 | client_p->localClient->caps |= cap->cap; | |
94 | break; | |
95 | } | |
96 | } | |
97 | } | |
98 | } | |
99 | ||
100 | return 0; | |
101 | } | |
102 | ||
103 | static int | |
104 | me_gcap(struct Client *client_p, struct Client *source_p, | |
105 | int parc, const char *parv[]) | |
106 | { | |
107 | struct Capability *cap; | |
108 | char *t = LOCAL_COPY(parv[1]); | |
109 | char *s; | |
110 | char *p; | |
111 | ||
112 | if(!IsServer(source_p)) | |
113 | return 0; | |
114 | ||
115 | /* already had GCAPAB?! */ | |
116 | if(!EmptyString(source_p->serv->fullcaps)) | |
117 | return 0; | |
118 | ||
119 | DupString(source_p->serv->fullcaps, parv[1]); | |
120 | ||
121 | for (s = strtoken(&p, t, " "); s; s = strtoken(&p, NULL, " ")) | |
122 | { | |
123 | for (cap = captab; cap->name; cap++) | |
124 | { | |
125 | if(!irccmp(cap->name, s)) | |
126 | { | |
127 | source_p->serv->caps |= cap->cap; | |
128 | break; | |
129 | } | |
130 | } | |
131 | } | |
132 | ||
133 | return 0; | |
134 | } |