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1d4df40c | 1 | /* |
2 | * IRC - Internet Relay Chat, ircd/m_sethost.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: asuka-sethost.patch,v 1.27 2005/02/13 17:28:11 froo 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 "ircd_reply.h" | |
86 | #include "ircd_string.h" | |
caa12862 | 87 | #include "ircd_snprintf.h" |
1d4df40c | 88 | #include "ircd_features.h" |
89 | #include "msgq.h" | |
90 | #include "numeric.h" | |
91 | #include "s_user.h" | |
92 | #include "s_debug.h" | |
93 | #include "struct.h" | |
94 | ||
95 | #include <assert.h> | |
96 | #include <stdlib.h> | |
97 | ||
98 | /* | |
99 | * m_sethost - generic message handler | |
100 | * | |
101 | * mimic old lain syntax: | |
102 | * | |
103 | * (Oper) /SETHOST ident host.cc [quit-message] | |
104 | * (User) /SETHOST host.cc password | |
105 | * (Both) /SETHOST undo | |
106 | * | |
107 | * check for undo, prepend parv w. <nick> -h or +h | |
108 | */ | |
109 | int m_sethost(struct Client* cptr, struct Client* sptr, int parc, char* parv[]) | |
110 | { | |
111 | char hostmask[512]; | |
112 | struct Flags setflags; | |
113 | ||
114 | /* Back up the flags first */ | |
115 | setflags = cli_flags(sptr); | |
116 | ||
117 | if (parc < 2) | |
118 | return need_more_params(sptr, "SETHOST"); | |
119 | ||
120 | if (0 == ircd_strcmp("undo", parv[1])) { | |
121 | set_hostmask(sptr, NULL, NULL); | |
122 | } else { | |
123 | if (parc<3) | |
124 | return need_more_params(sptr, "SETHOST"); | |
125 | if (IsAnOper(sptr)) { | |
126 | ircd_snprintf(0, hostmask, USERLEN + HOSTLEN + 1, "%s@%s", parv[1], parv[2]); | |
127 | if (!is_hostmask(hostmask)) { | |
128 | send_reply(sptr, ERR_BADHOSTMASK, hostmask); | |
129 | return 0; | |
130 | } | |
131 | if (set_hostmask(sptr, hostmask, NULL)) | |
132 | FlagClr(&setflags, FLAG_SETHOST); | |
133 | } else { | |
134 | if (!is_hostmask(parv[1])) { | |
135 | send_reply(sptr, ERR_BADHOSTMASK, parv[1]); | |
136 | return 0; | |
137 | } | |
138 | if (set_hostmask(sptr, parv[1], parv[2])) | |
139 | FlagClr(&setflags, FLAG_SETHOST); | |
140 | } | |
141 | } | |
142 | ||
143 | send_umode_out(cptr, sptr, &setflags, 0); | |
caa12862 | 144 | return 0; |
1d4df40c | 145 | } |