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189935b1 | 1 | /* |
2 | * IRC - Internet Relay Chat, ircd/m_squit.c | |
3 | * Copyright (C) 1990 Jarkko Oikarinen and | |
4 | * University of Oulu, Computing Center | |
5 | * | |
6 | * See file AUTHORS in IRC package for additional names of | |
7 | * the programmers. | |
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 1, or (at your option) | |
12 | * 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., 675 Mass Ave, Cambridge, MA 02139, USA. | |
22 | * | |
23 | * $Id: m_squit.c,v 1.12 2005/03/20 16:06:24 entrope Exp $ | |
24 | */ | |
25 | #include "config.h" | |
26 | ||
27 | #include "client.h" | |
28 | #include "hash.h" | |
29 | #include "ircd.h" | |
30 | #include "ircd_chattr.h" | |
31 | #include "ircd_log.h" | |
32 | #include "ircd_reply.h" | |
33 | #include "ircd_string.h" | |
34 | #include "numeric.h" | |
35 | #include "numnicks.h" | |
36 | #include "match.h" | |
37 | #include "s_debug.h" | |
38 | #include "s_misc.h" | |
39 | #include "s_user.h" | |
40 | #include "send.h" | |
41 | ||
42 | /* #include <assert.h> -- Now using assert in ircd_log.h */ | |
43 | #include <stdio.h> | |
44 | #include <stdlib.h> | |
45 | #include <string.h> | |
46 | ||
47 | /* | |
48 | * ms_squit (server) | |
49 | * | |
50 | * parv[0] = sender prefix | |
51 | * parv[1] = server name | |
52 | * parv[2] = timestamp | |
53 | * parv[parc-1] = comment | |
54 | * | |
55 | * No longer supports wildcards from servers. | |
56 | * No longer squits a server that gave us an malformed squit message. | |
57 | * - Isomer 1999-12-18 | |
58 | * | |
59 | */ | |
60 | int ms_squit(struct Client* cptr, struct Client* sptr, int parc, char* parv[]) | |
61 | { | |
62 | const char* server = parv[1]; | |
63 | struct Client *acptr; | |
64 | time_t timestamp = 0; | |
65 | char *comment = 0; | |
66 | ||
67 | if (parc < 2) | |
68 | return need_more_params(sptr, "SQUIT"); | |
69 | ||
70 | comment = parv[parc-1]; | |
71 | ||
72 | if (BadPtr(parv[parc - 1])) | |
73 | comment = cli_name(sptr); | |
74 | ||
75 | acptr = FindServer(server); | |
76 | ||
77 | if (!acptr) | |
78 | acptr = FindNServer(server); | |
79 | ||
80 | if (!acptr) { | |
81 | Debug((DEBUG_NOTICE, "Ignoring SQUIT to an unknown server")); | |
82 | return 0; | |
83 | } | |
84 | ||
85 | /* If they are squitting me, we reverse it */ | |
86 | if (IsMe(acptr)) | |
87 | acptr = cptr; /* Bugfix by Prefect */ | |
88 | ||
89 | if (parc > 2) | |
90 | timestamp = atoi(parv[2]); | |
91 | else | |
92 | protocol_violation(cptr, "SQUIT with no timestamp/reason"); | |
93 | ||
94 | /* If atoi(parv[2]) == 0 we must indeed squit ! | |
95 | * It will be our neighbour. | |
96 | */ | |
97 | if ( timestamp != 0 && timestamp != cli_serv(acptr)->timestamp) | |
98 | { | |
99 | Debug((DEBUG_NOTICE, "Ignoring SQUIT with the wrong timestamp")); | |
100 | return 0; | |
101 | } | |
102 | ||
103 | return exit_client(cptr, acptr, sptr, comment); | |
104 | } | |
105 | ||
106 | /* | |
107 | * mo_squit (oper) | |
108 | * | |
109 | * parv[0] = sender prefix | |
110 | * parv[1] = server name | |
111 | * parv[2] = comment (optional) | |
112 | * | |
113 | */ | |
114 | int mo_squit(struct Client* cptr, struct Client* sptr, int parc, char* parv[]) | |
115 | { | |
116 | const char* server; | |
117 | struct Client *acptr; | |
118 | struct Client *acptr2; | |
119 | char *comment; | |
120 | ||
121 | if (parc < 2) | |
122 | return need_more_params(sptr, "SQUIT"); | |
123 | ||
124 | if (parc < 3 || BadPtr(parv[2])) | |
125 | comment = cli_name(sptr); | |
126 | else | |
127 | comment = parv[2]; | |
128 | ||
129 | server = parv[1]; | |
130 | /* | |
131 | * The following allows wild cards in SQUIT. Only useful | |
132 | * when the command is issued by an oper. | |
133 | */ | |
134 | for (acptr = GlobalClientList; (acptr = next_client(acptr, server)); | |
135 | acptr = cli_next(acptr)) { | |
136 | if (IsServer(acptr) || IsMe(acptr)) | |
137 | break; | |
138 | } | |
139 | ||
140 | /* Not found? Bugger. */ | |
141 | if (!acptr || IsMe(acptr)) | |
142 | return send_reply(sptr, ERR_NOSUCHSERVER, server); | |
143 | ||
144 | /* | |
145 | * Look for a matching server that is closer, | |
146 | * that way we won't accidentally squit two close | |
147 | * servers like davis.* and davis-r.* when typing | |
148 | * /SQUIT davis* | |
149 | */ | |
150 | for (acptr2 = cli_serv(acptr)->up; acptr2 != &me; | |
151 | acptr2 = cli_serv(acptr2)->up) | |
152 | if (!match(server, cli_name(acptr2))) | |
153 | acptr = acptr2; | |
154 | ||
155 | /* Disallow local opers to squit remote servers */ | |
156 | if (IsLocOp(sptr) && !MyConnect(acptr)) | |
157 | return send_reply(sptr, ERR_NOPRIVILEGES); | |
158 | ||
159 | return exit_client(cptr, acptr, sptr, comment); | |
160 | } |