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189935b1 | 1 | /* |
2 | * IRC - Internet Relay Chat, ircd/m_proto.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 | /** @file | |
24 | * @brief Implementation of functions to send common replies to users. | |
25 | * @version $Id: ircd_reply.c,v 1.22 2004/12/11 05:13:45 klmitch Exp $ | |
26 | */ | |
27 | #include "config.h" | |
28 | ||
29 | #include "ircd_reply.h" | |
30 | #include "client.h" | |
31 | #include "ircd.h" | |
32 | #include "ircd_log.h" | |
33 | #include "ircd_snprintf.h" | |
34 | #include "msg.h" | |
35 | #include "msgq.h" | |
36 | #include "numeric.h" | |
37 | #include "s_conf.h" | |
38 | #include "s_debug.h" | |
39 | #include "send.h" | |
40 | ||
41 | /* #include <assert.h> -- Now using assert in ircd_log.h */ | |
42 | #include <string.h> | |
43 | ||
44 | /** Report a protocol violation warning to anyone listening. This can | |
45 | * be easily used to clean up the last couple of parts of the code. | |
46 | * @param[in] cptr Client that violated the protocol. | |
47 | * @param[in] pattern Description of how the protocol was violated. | |
48 | * @return Zero. | |
49 | */ | |
50 | int protocol_violation(struct Client* cptr, const char* pattern, ...) | |
51 | { | |
52 | struct VarData vd; | |
53 | ||
54 | assert(pattern); | |
55 | assert(cptr); | |
56 | ||
57 | vd.vd_format = pattern; | |
58 | va_start(vd.vd_args, pattern); | |
59 | ||
60 | sendwallto_group_butone(&me, WALL_DESYNCH, NULL, | |
61 | "Protocol Violation from %s: %v", cli_name(cptr), &vd); | |
62 | ||
63 | va_end(vd.vd_args); | |
64 | return 0; | |
65 | } | |
66 | ||
67 | /** Inform a client that they need to provide more parameters. | |
68 | * @param[in] cptr Taciturn client. | |
69 | * @param[in] cmd Command name. | |
70 | * @return Zero. | |
71 | */ | |
72 | int need_more_params(struct Client* cptr, const char* cmd) | |
73 | { | |
74 | send_reply(cptr, ERR_NEEDMOREPARAMS, cmd); | |
75 | return 0; | |
76 | } | |
77 | ||
78 | /** Send a generic reply to a user. | |
79 | * @param[in] to Client that wants a reply. | |
80 | * @param[in] reply Numeric of message to send. | |
81 | * @return Zero. | |
82 | */ | |
83 | int send_reply(struct Client *to, int reply, ...) | |
84 | { | |
85 | struct VarData vd; | |
86 | struct MsgBuf *mb; | |
87 | const struct Numeric *num; | |
88 | ||
89 | assert(0 != to); | |
90 | assert(0 != reply); | |
91 | ||
92 | num = get_error_numeric(reply & ~SND_EXPLICIT); /* get reply... */ | |
93 | ||
94 | va_start(vd.vd_args, reply); | |
95 | ||
96 | if (reply & SND_EXPLICIT) /* get right pattern */ | |
97 | vd.vd_format = (const char *) va_arg(vd.vd_args, char *); | |
98 | else | |
99 | vd.vd_format = num->format; | |
100 | ||
101 | assert(0 != vd.vd_format); | |
102 | ||
103 | /* build buffer */ | |
104 | mb = msgq_make(cli_from(to), "%:#C %s %C %v", &me, num->str, to, &vd); | |
105 | ||
106 | va_end(vd.vd_args); | |
107 | ||
108 | /* send it to the user */ | |
109 | send_buffer(to, mb, 0); | |
110 | ||
111 | msgq_clean(mb); | |
112 | ||
113 | return 0; /* convenience return */ | |
114 | } | |
115 | ||
116 | ||
117 |