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1 | /* | |
2 | * IRC - Internet Relay Chat, ircd/m_rping.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_rping.c,v 1.12 2004/12/11 05:13:48 klmitch Exp $ | |
24 | */ | |
25 | ||
26 | /* | |
27 | * m_functions execute protocol messages on this server: | |
28 | * | |
29 | * cptr is always NON-NULL, pointing to a *LOCAL* client | |
30 | * structure (with an open socket connected!). This | |
31 | * identifies the physical socket where the message | |
32 | * originated (or which caused the m_function to be | |
33 | * executed--some m_functions may call others...). | |
34 | * | |
35 | * sptr is the source of the message, defined by the | |
36 | * prefix part of the message if present. If not | |
37 | * or prefix not found, then sptr==cptr. | |
38 | * | |
39 | * (!IsServer(cptr)) => (cptr == sptr), because | |
40 | * prefixes are taken *only* from servers... | |
41 | * | |
42 | * (IsServer(cptr)) | |
43 | * (sptr == cptr) => the message didn't | |
44 | * have the prefix. | |
45 | * | |
46 | * (sptr != cptr && IsServer(sptr) means | |
47 | * the prefix specified servername. (?) | |
48 | * | |
49 | * (sptr != cptr && !IsServer(sptr) means | |
50 | * that message originated from a remote | |
51 | * user (not local). | |
52 | * | |
53 | * combining | |
54 | * | |
55 | * (!IsServer(sptr)) means that, sptr can safely | |
56 | * taken as defining the target structure of the | |
57 | * message in this server. | |
58 | * | |
59 | * *Always* true (if 'parse' and others are working correct): | |
60 | * | |
61 | * 1) sptr->from == cptr (note: cptr->from == cptr) | |
62 | * | |
63 | * 2) MyConnect(sptr) <=> sptr == cptr (e.g. sptr | |
64 | * *cannot* be a local connection, unless it's | |
65 | * actually cptr!). [MyConnect(x) should probably | |
66 | * be defined as (x == x->from) --msa ] | |
67 | * | |
68 | * parc number of variable parameter strings (if zero, | |
69 | * parv is allowed to be NULL) | |
70 | * | |
71 | * parv a NULL terminated list of parameter pointers, | |
72 | * | |
73 | * parv[0], sender (prefix string), if not present | |
74 | * this points to an empty string. | |
75 | * parv[1]...parv[parc-1] | |
76 | * pointers to additional parameters | |
77 | * parv[parc] == NULL, *always* | |
78 | * | |
79 | * note: it is guaranteed that parv[0]..parv[parc-1] are all | |
80 | * non-NULL pointers. | |
81 | */ | |
82 | #include "config.h" | |
83 | ||
84 | #include "client.h" | |
85 | #include "hash.h" | |
86 | #include "ircd.h" | |
87 | #include "ircd_log.h" | |
88 | #include "ircd_reply.h" | |
89 | #include "ircd_string.h" | |
90 | #include "msg.h" | |
91 | #include "numeric.h" | |
92 | #include "numnicks.h" | |
93 | #include "opercmds.h" | |
94 | #include "s_user.h" | |
95 | #include "send.h" | |
96 | ||
97 | /* #include <assert.h> -- Now using assert in ircd_log.h */ | |
98 | ||
99 | ||
100 | /* | |
101 | * Old P10: | |
102 | * Sending [:defiant.atomicrevs.net RPING Z Gte- 953863987 524184 :<No client start time>] to | |
103 | * alphatest.atomicrevs.net | |
104 | * Full P10: | |
105 | * Parsing: j RI Z jAA 953865133 0 :<No client start time> | |
106 | */ | |
107 | ||
108 | /* | |
109 | * ms_rping - server message handler | |
110 | * -- by Run | |
111 | * | |
112 | * parv[0] = sender (sptr->name thus) | |
113 | * if sender is a person: (traveling towards start server) | |
114 | * parv[1] = pinged server[mask] | |
115 | * parv[2] = start server (current target) | |
116 | * parv[3] = optional remark | |
117 | * if sender is a server: (traveling towards pinged server) | |
118 | * parv[1] = pinged server (current target) | |
119 | * parv[2] = original sender (person) | |
120 | * parv[3] = start time in s | |
121 | * parv[4] = start time in us | |
122 | * parv[5] = the optional remark | |
123 | */ | |
124 | int ms_rping(struct Client* cptr, struct Client* sptr, int parc, char* parv[]) | |
125 | { | |
126 | struct Client* destination = 0; | |
127 | assert(0 != cptr); | |
128 | assert(0 != sptr); | |
129 | assert(IsServer(cptr)); | |
130 | ||
131 | /* | |
132 | * shouldn't happen | |
133 | */ | |
134 | if (!IsPrivileged(sptr)) | |
135 | return 0; | |
136 | ||
137 | if (IsServer(sptr)) { | |
138 | if (parc < 6) { | |
139 | /* | |
140 | * PROTOCOL ERROR | |
141 | */ | |
142 | return need_more_params(sptr, "RPING"); | |
143 | } | |
144 | if ((destination = FindNServer(parv[1]))) { | |
145 | /* | |
146 | * if it's not for me, pass it on | |
147 | */ | |
148 | if (IsMe(destination)) | |
149 | sendcmdto_one(&me, CMD_RPONG, sptr, "%s %s %s %s :%s", cli_name(sptr), | |
150 | parv[2], parv[3], parv[4], parv[5]); | |
151 | else | |
152 | sendcmdto_one(sptr, CMD_RPING, destination, "%C %s %s %s :%s", | |
153 | destination, parv[2], parv[3], parv[4], parv[5]); | |
154 | } | |
155 | } | |
156 | else { | |
157 | if (parc < 3) { | |
158 | return need_more_params(sptr, "RPING"); | |
159 | } | |
160 | /* | |
161 | * Haven't made it to the start server yet, if I'm not the start server | |
162 | * pass it on. | |
163 | */ | |
164 | if (hunt_server_cmd(sptr, CMD_RPING, cptr, 1, "%s %C :%s", 2, parc, parv) | |
165 | != HUNTED_ISME) | |
166 | return 0; | |
167 | /* | |
168 | * otherwise ping the destination from here | |
169 | */ | |
170 | if ((destination = find_match_server(parv[1]))) { | |
171 | assert(IsServer(destination) || IsMe(destination)); | |
172 | sendcmdto_one(&me, CMD_RPING, destination, "%C %C %s :%s", destination, | |
173 | sptr, militime(0, 0), parv[3]); | |
174 | } | |
175 | else | |
176 | send_reply(sptr, ERR_NOSUCHSERVER, parv[1]); | |
177 | } | |
178 | return 0; | |
179 | } | |
180 | ||
181 | /* | |
182 | * mo_rping - oper message handler | |
183 | * -- by Run | |
184 | * | |
185 | * | |
186 | * Receive: | |
187 | * RPING blah.* | |
188 | * RPING blah.* :<start time> | |
189 | * RPING blah.* server.* :<start time> | |
190 | * | |
191 | * parv[0] = sender (sptr->name thus) | |
192 | * parv[1] = pinged server name or mask (required) | |
193 | * parv[2] = start server name or mask (optional, defaults to me) | |
194 | * parv[3] = client start time (optional) | |
195 | * | |
196 | * Send: NumNick(sptr) RPING blah.* server.net :<start time> (hunt_server) | |
197 | * NumServ(&me) RPING NumServ(blah.bar.net) NumNick(sptr) :<start time> (here) | |
198 | */ | |
199 | int mo_rping(struct Client* cptr, struct Client* sptr, int parc, char* parv[]) | |
200 | { | |
201 | struct Client* acptr = 0; | |
202 | const char* start_time = "<No client start time>"; | |
203 | ||
204 | assert(0 != cptr); | |
205 | assert(0 != sptr); | |
206 | assert(cptr == sptr); | |
207 | assert(IsAnOper(sptr)); | |
208 | ||
209 | if (parc < 2) | |
210 | return need_more_params(sptr, "RPING"); | |
211 | ||
212 | if (parc > 2) { | |
213 | if ((acptr = find_match_server(parv[2])) && !IsMe(acptr)) { | |
214 | parv[2] = cli_name(acptr); | |
215 | if (3 == parc) { | |
216 | /* | |
217 | * const_cast<char*>(start_time); | |
218 | */ | |
219 | parv[parc++] = (char*) start_time; | |
220 | } | |
221 | hunt_server_cmd(sptr, CMD_RPING, cptr, 1, "%s %C :%s", 2, parc, parv); | |
222 | return 0; | |
223 | } | |
224 | else | |
225 | start_time = parv[2]; | |
226 | } | |
227 | ||
228 | if ((acptr = find_match_server(parv[1]))) { | |
229 | assert(IsServer(acptr) || IsMe(acptr)); | |
230 | sendcmdto_one(&me, CMD_RPING, acptr, "%C %C %s :%s", acptr, sptr, | |
231 | militime(0, 0), start_time); | |
232 | } | |
233 | else | |
234 | send_reply(sptr, ERR_NOSUCHSERVER, parv[1]); | |
235 | ||
236 | return 0; | |
237 | } |