1 |
michael |
5052 |
/* |
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* Copyright (C) 2002-2003 Erik Fears |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version 2 |
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* of the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to |
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* |
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* The Free Software Foundation, Inc. |
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* 59 Temple Place - Suite 330 |
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* Boston, MA 02111-1307, USA. |
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* |
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* |
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*/ |
23 |
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#include "setup.h" |
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26 |
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#include <stdio.h> |
27 |
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#include <unistd.h> |
28 |
michael |
5207 |
#include <stdlib.h> |
29 |
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#include <string.h> |
30 |
michael |
5052 |
#include <sys/types.h> |
31 |
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#include <sys/socket.h> |
32 |
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#include <netinet/in.h> |
33 |
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#include <arpa/inet.h> |
34 |
michael |
5226 |
#include <poll.h> |
35 |
michael |
5266 |
#include <sys/time.h> |
36 |
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#include <time.h> |
37 |
michael |
5052 |
|
38 |
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#include <errno.h> |
39 |
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#include <stdarg.h> |
40 |
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#include <regex.h> |
41 |
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42 |
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#include "config.h" |
43 |
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#include "irc.h" |
44 |
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#include "log.h" |
45 |
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#include "opercmd.h" |
46 |
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#include "scan.h" |
47 |
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#include "dnsbl.h" |
48 |
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#include "stats.h" |
49 |
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#include "options.h" |
50 |
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#include "match.h" |
51 |
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#include "compat.h" |
52 |
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#include "negcache.h" |
53 |
michael |
5333 |
#include "memory.h" |
54 |
michael |
5052 |
#include "main.h" |
55 |
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56 |
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57 |
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static void irc_init(void); |
58 |
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static void irc_connect(void); |
59 |
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static void irc_reconnect(void); |
60 |
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static void irc_read(void); |
61 |
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static void irc_parse(void); |
62 |
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63 |
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static struct ChannelConf *get_channel(const char *); |
64 |
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65 |
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static struct UserInfo *userinfo_create(char *); |
66 |
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static void userinfo_free(struct UserInfo *source); |
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68 |
michael |
5322 |
static void m_ping(char *[], unsigned int, char *, struct UserInfo *); |
69 |
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static void m_invite(char *[], unsigned int, char *, struct UserInfo *); |
70 |
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static void m_privmsg(char *[], unsigned int, char *, struct UserInfo *); |
71 |
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static void m_ctcp(char *[], unsigned int, char *, struct UserInfo *); |
72 |
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static void m_notice(char *[], unsigned int, char *, struct UserInfo *); |
73 |
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static void m_perform(char *[], unsigned int, char *, struct UserInfo *); |
74 |
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static void m_userhost(char *[], unsigned int, char *, struct UserInfo *); |
75 |
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static void m_cannot_join(char *[], unsigned int, char *, struct UserInfo *); |
76 |
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static void m_kill(char *[], unsigned int, char *, struct UserInfo *); |
77 |
michael |
5052 |
|
78 |
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79 |
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/* |
80 |
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* Certain variables we don't want to allocate memory for over and over |
81 |
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* again so global scope is given. |
82 |
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*/ |
83 |
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|
84 |
michael |
5130 |
static char IRC_RAW[MSGLENMAX]; /* Buffer to read data into */ |
85 |
michael |
5125 |
static unsigned int IRC_RAW_LEN = 0; /* Position of IRC_RAW */ |
86 |
michael |
5130 |
static int IRC_FD = 0; /* File descriptor for IRC client */ |
87 |
michael |
5052 |
|
88 |
michael |
5311 |
static struct sockaddr_in IRC_SVR; /* Sock Address Struct for IRC server */ |
89 |
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static struct in_addr IRC_LOCAL; /* Sock Address Struct for Bind */ |
90 |
michael |
5052 |
|
91 |
michael |
5130 |
static time_t IRC_LAST = 0; /* Last full line of data from irc server*/ |
92 |
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static time_t IRC_LASTRECONNECT = 0; /* Time of last reconnection */ |
93 |
michael |
5052 |
|
94 |
michael |
5114 |
/* |
95 |
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* Table should be ordered with most occuring (or priority) |
96 |
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* commands at the top of the list. |
97 |
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*/ |
98 |
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static struct CommandHash COMMAND_TABLE[] = |
99 |
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{ |
100 |
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{ "NOTICE", m_notice }, |
101 |
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{ "PRIVMSG", m_privmsg }, |
102 |
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{ "PING", m_ping }, |
103 |
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{ "INVITE", m_invite }, |
104 |
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{ "001", m_perform }, |
105 |
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{ "302", m_userhost }, |
106 |
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{ "471", m_cannot_join }, |
107 |
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{ "473", m_cannot_join }, |
108 |
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{ "474", m_cannot_join }, |
109 |
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{ "475", m_cannot_join }, |
110 |
michael |
5191 |
{ "KILL", m_kill }, |
111 |
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{ NULL, NULL } |
112 |
michael |
5114 |
}; |
113 |
michael |
5052 |
|
114 |
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/* irc_cycle |
115 |
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* |
116 |
michael |
5069 |
* Pass control to the IRC portion of HOPM to handle any awaiting IRC events. |
117 |
michael |
5052 |
* |
118 |
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* Parameters: |
119 |
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* None |
120 |
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* |
121 |
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* Return: |
122 |
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* None |
123 |
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*/ |
124 |
michael |
5114 |
void |
125 |
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irc_cycle(void) |
126 |
michael |
5052 |
{ |
127 |
michael |
5226 |
static struct pollfd pfd; |
128 |
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|
129 |
michael |
5114 |
if (IRC_FD <= 0) |
130 |
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{ |
131 |
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/* Initialise negative cache. */ |
132 |
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if (OptionsItem->negcache > 0) |
133 |
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nc_init(&nc_head); |
134 |
michael |
5052 |
|
135 |
michael |
5114 |
/* Resolve remote host. */ |
136 |
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irc_init(); |
137 |
michael |
5052 |
|
138 |
michael |
5114 |
/* Connect to remote host. */ |
139 |
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irc_connect(); |
140 |
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return; /* In case connect() immediately failed */ |
141 |
michael |
5052 |
} |
142 |
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143 |
michael |
5226 |
pfd.fd = IRC_FD; |
144 |
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pfd.events = POLLIN; |
145 |
michael |
5052 |
|
146 |
michael |
5226 |
/* Block .025 seconds to avoid excessive CPU use on poll(). */ |
147 |
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switch (poll(&pfd, 1, 25)) |
148 |
michael |
5114 |
{ |
149 |
michael |
5226 |
case 0: |
150 |
michael |
5114 |
case -1: |
151 |
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break; |
152 |
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default: |
153 |
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/* Check if IRC data is available. */ |
154 |
michael |
5226 |
if (pfd.revents & POLLIN) |
155 |
michael |
5114 |
irc_read(); |
156 |
michael |
5052 |
|
157 |
michael |
5114 |
break; |
158 |
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} |
159 |
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} |
160 |
michael |
5052 |
|
161 |
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/* irc_init |
162 |
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* |
163 |
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* Resolve IRC host and perform other initialization. |
164 |
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* |
165 |
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* Parameters: |
166 |
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* None |
167 |
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* |
168 |
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* Return: |
169 |
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* None |
170 |
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*/ |
171 |
michael |
5114 |
static void |
172 |
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irc_init(void) |
173 |
michael |
5052 |
{ |
174 |
michael |
5311 |
struct sockaddr_in bsaddr; |
175 |
michael |
5114 |
struct in_addr *irc_host; |
176 |
michael |
5052 |
|
177 |
michael |
5114 |
if (IRC_FD) |
178 |
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close(IRC_FD); |
179 |
michael |
5052 |
|
180 |
michael |
5114 |
memset(&IRC_SVR, 0, sizeof(IRC_SVR)); |
181 |
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memset(&IRC_LOCAL, 0, sizeof(IRC_LOCAL)); |
182 |
michael |
5311 |
memset(&bsaddr, 0, sizeof(bsaddr)); |
183 |
michael |
5052 |
|
184 |
michael |
5114 |
/* Resolve IRC host. */ |
185 |
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if ((irc_host = firedns_resolveip4(IRCItem->server)) == NULL) |
186 |
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{ |
187 |
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log_printf("IRC -> firedns_resolveip4(\"%s\"): %s", IRCItem->server, |
188 |
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firedns_strerror(fdns_errno)); |
189 |
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exit(EXIT_FAILURE); |
190 |
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} |
191 |
michael |
5052 |
|
192 |
michael |
5311 |
IRC_SVR.sin_family = AF_INET; |
193 |
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IRC_SVR.sin_port = htons(IRCItem->port); |
194 |
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IRC_SVR.sin_addr = *irc_host; |
195 |
michael |
5052 |
|
196 |
michael |
5311 |
if (IRC_SVR.sin_addr.s_addr == INADDR_NONE) |
197 |
michael |
5114 |
{ |
198 |
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log_printf("IRC -> Unknown error resolving remote host (%s)", |
199 |
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IRCItem->server); |
200 |
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exit(EXIT_FAILURE); |
201 |
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} |
202 |
michael |
5052 |
|
203 |
michael |
5114 |
/* Request file desc for IRC client socket */ |
204 |
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IRC_FD = socket(AF_INET, SOCK_STREAM, 0); |
205 |
michael |
5052 |
|
206 |
michael |
5114 |
if (IRC_FD == -1) |
207 |
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{ |
208 |
michael |
5250 |
log_printf("IRC -> socket(): error creating socket: %s", strerror(errno)); |
209 |
michael |
5116 |
exit(EXIT_FAILURE); |
210 |
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} |
211 |
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212 |
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/* Bind */ |
213 |
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if (!EmptyString(IRCItem->vhost)) |
214 |
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{ |
215 |
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int bindret = 0; |
216 |
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|
217 |
michael |
5311 |
if (inet_pton(AF_INET, IRCItem->vhost, &IRC_LOCAL.s_addr) <= 0) |
218 |
michael |
5116 |
{ |
219 |
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log_printf("IRC -> bind(): %s is an invalid address", IRCItem->vhost); |
220 |
michael |
5052 |
exit(EXIT_FAILURE); |
221 |
michael |
5116 |
} |
222 |
michael |
5052 |
|
223 |
michael |
5311 |
bsaddr.sin_addr.s_addr = IRC_LOCAL.s_addr; |
224 |
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bsaddr.sin_family = AF_INET; |
225 |
|
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bsaddr.sin_port = htons(0); |
226 |
michael |
5114 |
|
227 |
michael |
5311 |
bindret = bind(IRC_FD, (struct sockaddr *)&bsaddr, sizeof(bsaddr)); |
228 |
michael |
5116 |
|
229 |
|
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if (bindret) |
230 |
|
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{ |
231 |
michael |
5250 |
log_printf("IRC -> bind(): error binding to %s: %s", IRCItem->vhost, strerror(errno)); |
232 |
michael |
5116 |
exit(EXIT_FAILURE); |
233 |
michael |
5114 |
} |
234 |
|
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} |
235 |
michael |
5052 |
} |
236 |
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|
237 |
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/* irc_send |
238 |
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* |
239 |
|
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* Send data to remote IRC host. |
240 |
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* |
241 |
|
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* Parameters: |
242 |
|
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* data: Format of data to send |
243 |
|
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* ...: varargs to format with |
244 |
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* |
245 |
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* Return: NONE |
246 |
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*/ |
247 |
michael |
5114 |
void |
248 |
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irc_send(const char *data, ...) |
249 |
michael |
5052 |
{ |
250 |
michael |
5114 |
va_list arglist; |
251 |
michael |
5193 |
char buf[MSGLENMAX]; |
252 |
michael |
5279 |
size_t len = 0; |
253 |
michael |
5052 |
|
254 |
michael |
5114 |
va_start(arglist, data); |
255 |
michael |
5193 |
len = vsnprintf(buf, sizeof(buf), data, arglist); |
256 |
michael |
5114 |
va_end(arglist); |
257 |
michael |
5052 |
|
258 |
michael |
5114 |
if (OPT_DEBUG >= 2) |
259 |
michael |
5193 |
log_printf("IRC SEND -> %s", buf); |
260 |
michael |
5052 |
|
261 |
michael |
5193 |
if (len > 510) |
262 |
|
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len = 510; |
263 |
michael |
5052 |
|
264 |
michael |
5193 |
buf[len++] = '\r'; |
265 |
|
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buf[len++] = '\n'; |
266 |
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|
267 |
|
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if (send(IRC_FD, buf, len, 0) == -1) |
268 |
michael |
5114 |
{ |
269 |
|
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/* Return of -1 indicates error sending data; we reconnect. */ |
270 |
michael |
5253 |
log_printf("IRC -> Error sending data to server: %s", strerror(errno)); |
271 |
michael |
5114 |
irc_reconnect(); |
272 |
|
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} |
273 |
michael |
5052 |
} |
274 |
|
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|
275 |
|
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/* irc_send |
276 |
|
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* |
277 |
|
|
* Send privmsg to all channels. |
278 |
|
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* |
279 |
|
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* Parameters: |
280 |
|
|
* data: Format of data to send |
281 |
|
|
* ...: varargs to format with |
282 |
|
|
* |
283 |
|
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* Return: NONE |
284 |
|
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*/ |
285 |
michael |
5114 |
void |
286 |
|
|
irc_send_channels(const char *data, ...) |
287 |
michael |
5052 |
{ |
288 |
michael |
5114 |
const node_t *node; |
289 |
|
|
va_list arglist; |
290 |
|
|
char buf[MSGLENMAX]; |
291 |
michael |
5052 |
|
292 |
michael |
5114 |
va_start(arglist, data); |
293 |
|
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vsnprintf(buf, sizeof(buf), data, arglist); |
294 |
|
|
va_end(arglist); |
295 |
michael |
5052 |
|
296 |
michael |
5114 |
LIST_FOREACH(node, IRCItem->channels->head) |
297 |
|
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{ |
298 |
|
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const struct ChannelConf *chan = node->data; |
299 |
michael |
5106 |
|
300 |
michael |
5114 |
irc_send("PRIVMSG %s :%s", chan->name, buf); |
301 |
|
|
} |
302 |
michael |
5052 |
} |
303 |
|
|
|
304 |
|
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/* irc_connect |
305 |
|
|
* |
306 |
|
|
* Connect to IRC server. |
307 |
|
|
* XXX: FD allocation done here |
308 |
|
|
* |
309 |
|
|
* Parameters: NONE |
310 |
|
|
* Return: NONE |
311 |
|
|
*/ |
312 |
michael |
5114 |
static void |
313 |
|
|
irc_connect(void) |
314 |
michael |
5052 |
{ |
315 |
michael |
5114 |
/* Connect to IRC server as client. */ |
316 |
|
|
if (connect(IRC_FD, (struct sockaddr *)&IRC_SVR, sizeof(IRC_SVR)) == -1) |
317 |
|
|
{ |
318 |
|
|
switch (errno) |
319 |
|
|
{ |
320 |
|
|
case EISCONN: |
321 |
|
|
/* Already connected */ |
322 |
|
|
return; |
323 |
|
|
case ECONNREFUSED: |
324 |
|
|
log_printf("IRC -> connect(): Connection refused by (%s)", |
325 |
|
|
IRCItem->server); |
326 |
|
|
break; |
327 |
|
|
case ETIMEDOUT: |
328 |
|
|
log_printf("IRC -> connect(): Timed out connecting to (%s)", |
329 |
|
|
IRCItem->server); |
330 |
|
|
break; |
331 |
|
|
case ENETUNREACH: |
332 |
|
|
log_printf("IRC -> connect(): Network unreachable"); |
333 |
|
|
break; |
334 |
|
|
case EALREADY: |
335 |
|
|
/* Previous attempt not complete */ |
336 |
|
|
return; |
337 |
|
|
default: |
338 |
|
|
log_printf("IRC -> connect(): Unknown error connecting to (%s)", |
339 |
|
|
IRCItem->server); |
340 |
michael |
5052 |
|
341 |
michael |
5114 |
if (OPT_DEBUG >= 1) |
342 |
|
|
log_printf("%s", strerror(errno)); |
343 |
|
|
} |
344 |
michael |
5052 |
|
345 |
michael |
5114 |
/* Try to connect again */ |
346 |
|
|
irc_reconnect(); |
347 |
|
|
return; |
348 |
|
|
} |
349 |
michael |
5052 |
|
350 |
michael |
5114 |
irc_send("NICK %s", IRCItem->nick); |
351 |
michael |
5052 |
|
352 |
michael |
5114 |
if (!EmptyString(IRCItem->password)) |
353 |
|
|
irc_send("PASS %s", IRCItem->password); |
354 |
michael |
5052 |
|
355 |
michael |
5114 |
irc_send("USER %s %s %s :%s", |
356 |
|
|
IRCItem->username, |
357 |
|
|
IRCItem->username, |
358 |
|
|
IRCItem->username, |
359 |
|
|
IRCItem->realname); |
360 |
|
|
time(&IRC_LAST); |
361 |
michael |
5052 |
} |
362 |
|
|
|
363 |
|
|
/* irc_reconnect |
364 |
|
|
* |
365 |
|
|
* Close connection to IRC server. |
366 |
|
|
* |
367 |
|
|
* Parameters: NONE |
368 |
|
|
* |
369 |
|
|
* Return: NONE |
370 |
|
|
*/ |
371 |
michael |
5114 |
static void |
372 |
|
|
irc_reconnect(void) |
373 |
michael |
5052 |
{ |
374 |
michael |
5114 |
time_t present; |
375 |
michael |
5052 |
|
376 |
michael |
5114 |
time(&present); |
377 |
michael |
5052 |
|
378 |
michael |
5114 |
/* Only try to reconnect every RECONNECT_INTERVAL seconds */ |
379 |
|
|
if ((present - IRC_LASTRECONNECT) < RECONNECTINTERVAL) |
380 |
|
|
{ |
381 |
|
|
/* Sleep to avoid excessive CPU */ |
382 |
|
|
sleep(1); |
383 |
|
|
return; |
384 |
|
|
} |
385 |
michael |
5052 |
|
386 |
michael |
5114 |
time(&IRC_LASTRECONNECT); |
387 |
michael |
5052 |
|
388 |
michael |
5114 |
if (IRC_FD > 0) |
389 |
|
|
close(IRC_FD); |
390 |
michael |
5052 |
|
391 |
michael |
5114 |
/* Set IRC_FD 0 for reconnection on next irc_cycle(). */ |
392 |
|
|
IRC_FD = 0; |
393 |
|
|
|
394 |
|
|
log_printf("IRC -> Connection to (%s) failed, reconnecting.", IRCItem->server); |
395 |
michael |
5052 |
} |
396 |
|
|
|
397 |
|
|
/* irc_read |
398 |
|
|
* |
399 |
|
|
* irc_read is called my irc_cycle when new data is ready to be |
400 |
michael |
5114 |
* read from the irc server. |
401 |
michael |
5052 |
* |
402 |
|
|
* Parameters: NONE |
403 |
|
|
* Return: NONE |
404 |
|
|
*/ |
405 |
michael |
5114 |
static void |
406 |
|
|
irc_read(void) |
407 |
michael |
5052 |
{ |
408 |
michael |
5116 |
int len; |
409 |
|
|
char c; |
410 |
michael |
5052 |
|
411 |
michael |
5116 |
while ((len = read(IRC_FD, &c, 1)) > 0) |
412 |
|
|
{ |
413 |
|
|
if (c == '\r') |
414 |
|
|
continue; |
415 |
michael |
5052 |
|
416 |
michael |
5116 |
if (c == '\n') |
417 |
|
|
{ |
418 |
|
|
/* Null string. */ |
419 |
|
|
IRC_RAW[IRC_RAW_LEN] = '\0'; |
420 |
michael |
5052 |
|
421 |
michael |
5116 |
/* Parse line. */ |
422 |
|
|
irc_parse(); |
423 |
michael |
5052 |
|
424 |
michael |
5116 |
/* Reset counter. */ |
425 |
michael |
5052 |
IRC_RAW_LEN = 0; |
426 |
michael |
5116 |
break; |
427 |
|
|
} |
428 |
|
|
|
429 |
michael |
5124 |
if (c != '\0') |
430 |
michael |
5116 |
IRC_RAW[IRC_RAW_LEN++] = c; |
431 |
|
|
} |
432 |
|
|
|
433 |
|
|
if ((len <= 0) && (errno != EAGAIN)) |
434 |
|
|
{ |
435 |
|
|
if (OPT_DEBUG >= 2) |
436 |
|
|
log_printf("irc_read -> errno=%d len=%d", errno, len); |
437 |
|
|
|
438 |
|
|
irc_reconnect(); |
439 |
|
|
IRC_RAW_LEN = 0; |
440 |
|
|
return; |
441 |
|
|
} |
442 |
michael |
5052 |
} |
443 |
|
|
|
444 |
|
|
/* irc_parse |
445 |
|
|
* |
446 |
|
|
* irc_parse is called by irc_read when a full line of data |
447 |
|
|
* is ready to be parsed. |
448 |
|
|
* |
449 |
|
|
* Parameters: NONE |
450 |
|
|
* Return: NONE |
451 |
|
|
*/ |
452 |
michael |
5114 |
static void |
453 |
|
|
irc_parse(void) |
454 |
michael |
5052 |
{ |
455 |
michael |
5116 |
struct UserInfo *source_p; |
456 |
|
|
char *pos; |
457 |
michael |
5052 |
|
458 |
michael |
5116 |
/* |
459 |
|
|
* parv stores the parsed token, parc is the count of the parsed |
460 |
|
|
* tokens |
461 |
|
|
* |
462 |
|
|
* parv[0] is ALWAYS the source, and is the server name of the source |
463 |
|
|
* did not exist |
464 |
michael |
5052 |
*/ |
465 |
michael |
5191 |
char *parv[17]; |
466 |
|
|
unsigned int parc = 1; |
467 |
|
|
char msg[MSGLENMAX]; /* Temporarily stores IRC msg to pass to handlers */ |
468 |
michael |
5052 |
|
469 |
michael |
5125 |
if (IRC_RAW_LEN == 0) |
470 |
michael |
5116 |
return; |
471 |
michael |
5052 |
|
472 |
michael |
5116 |
if (OPT_DEBUG >= 2) |
473 |
|
|
log_printf("IRC READ -> %s", IRC_RAW); |
474 |
michael |
5052 |
|
475 |
michael |
5116 |
time(&IRC_LAST); |
476 |
michael |
5052 |
|
477 |
michael |
5116 |
/* Store a copy of IRC_RAW for the handlers (for functions that need PROOF) */ |
478 |
|
|
strlcpy(msg, IRC_RAW, sizeof(msg)); |
479 |
michael |
5052 |
|
480 |
michael |
5116 |
/* parv[0] is always the source */ |
481 |
|
|
if (IRC_RAW[0] == ':') |
482 |
|
|
parv[0] = IRC_RAW + 1; |
483 |
|
|
else |
484 |
|
|
{ |
485 |
|
|
parv[0] = IRCItem->server; |
486 |
|
|
parv[parc++] = IRC_RAW; |
487 |
|
|
} |
488 |
michael |
5052 |
|
489 |
michael |
5116 |
pos = IRC_RAW; |
490 |
michael |
5052 |
|
491 |
michael |
5116 |
while ((pos = strchr(pos, ' ')) && parc <= 17) |
492 |
|
|
{ |
493 |
|
|
/* Avoid excessive spaces and end of IRC_RAW */ |
494 |
|
|
if (*(pos + 1) == ' ' && *(pos + 1) == '\0') |
495 |
|
|
{ |
496 |
|
|
pos++; |
497 |
|
|
continue; |
498 |
|
|
} |
499 |
michael |
5052 |
|
500 |
michael |
5116 |
/* Anything after a : is considered the final string of the message */ |
501 |
|
|
if (*(pos + 1) == ':') |
502 |
|
|
{ |
503 |
|
|
parv[parc++] = pos + 2; |
504 |
michael |
5052 |
*pos = '\0'; |
505 |
michael |
5116 |
break; |
506 |
|
|
} |
507 |
michael |
5052 |
|
508 |
michael |
5116 |
/* |
509 |
|
|
* Set the next parv at this position and replace the space with a |
510 |
|
|
* \0 for the previous parv |
511 |
|
|
*/ |
512 |
|
|
parv[parc++] = pos + 1; |
513 |
|
|
*pos = '\0'; |
514 |
|
|
pos++; |
515 |
|
|
} |
516 |
michael |
5052 |
|
517 |
michael |
5116 |
/* Generate a UserInfo struct from the source */ |
518 |
|
|
source_p = userinfo_create(parv[0]); |
519 |
michael |
5052 |
|
520 |
michael |
5116 |
/* |
521 |
|
|
* Determine which command this is from the command table |
522 |
|
|
* and let the handler for that command take control |
523 |
|
|
*/ |
524 |
michael |
5191 |
for (const struct CommandHash *cmd = COMMAND_TABLE; cmd->command; ++cmd) |
525 |
michael |
5116 |
{ |
526 |
michael |
5191 |
if (strcasecmp(cmd->command, parv[1]) == 0) |
527 |
michael |
5116 |
{ |
528 |
michael |
5191 |
cmd->handler(parv, parc, msg, source_p); |
529 |
michael |
5116 |
break; |
530 |
|
|
} |
531 |
|
|
} |
532 |
michael |
5052 |
|
533 |
michael |
5116 |
userinfo_free(source_p); |
534 |
michael |
5052 |
} |
535 |
|
|
|
536 |
|
|
/* irc_timer |
537 |
|
|
* |
538 |
|
|
* Functions to be performed every ~seconds. |
539 |
|
|
* |
540 |
|
|
* Parameters: NONE |
541 |
|
|
* Return: NONE |
542 |
|
|
*/ |
543 |
michael |
5114 |
void |
544 |
|
|
irc_timer(void) |
545 |
michael |
5052 |
{ |
546 |
michael |
5114 |
time_t present, delta; |
547 |
michael |
5052 |
|
548 |
michael |
5114 |
time(&present); |
549 |
michael |
5052 |
|
550 |
michael |
5114 |
delta = present - IRC_LAST; |
551 |
michael |
5052 |
|
552 |
michael |
5198 |
/* No data in IRCItem->readtimeout seconds */ |
553 |
|
|
if (delta >= IRCItem->readtimeout) |
554 |
michael |
5114 |
{ |
555 |
|
|
log_printf("IRC -> Timeout awaiting data from server."); |
556 |
|
|
irc_reconnect(); |
557 |
michael |
5052 |
|
558 |
michael |
5322 |
/* Make sure we don't do this again for a while */ |
559 |
michael |
5114 |
time(&IRC_LAST); |
560 |
|
|
} |
561 |
michael |
5198 |
else if (delta >= IRCItem->readtimeout / 2) |
562 |
michael |
5114 |
{ |
563 |
|
|
/* |
564 |
michael |
5322 |
* Generate some data so high ping times don't cause uneeded |
565 |
michael |
5114 |
* reconnections |
566 |
|
|
*/ |
567 |
|
|
irc_send("PING :HOPM"); |
568 |
|
|
} |
569 |
michael |
5052 |
} |
570 |
|
|
|
571 |
|
|
/* get_channel |
572 |
|
|
* |
573 |
|
|
* Check if a channel is defined in our conf. If so return |
574 |
|
|
* a pointer to it. |
575 |
|
|
* |
576 |
|
|
* Parameters: |
577 |
|
|
* channel: channel to search conf for |
578 |
|
|
* |
579 |
|
|
* Return: Pointer to ChannelConf containing the channel |
580 |
|
|
*/ |
581 |
michael |
5114 |
static struct ChannelConf * |
582 |
|
|
get_channel(const char *channel) |
583 |
michael |
5052 |
{ |
584 |
michael |
5114 |
node_t *node; |
585 |
michael |
5052 |
|
586 |
michael |
5114 |
LIST_FOREACH(node, IRCItem->channels->head) |
587 |
|
|
{ |
588 |
michael |
5116 |
struct ChannelConf *item = node->data; |
589 |
michael |
5052 |
|
590 |
michael |
5114 |
if (strcasecmp(item->name, channel) == 0) |
591 |
|
|
return item; |
592 |
|
|
} |
593 |
michael |
5052 |
|
594 |
michael |
5114 |
return NULL; |
595 |
michael |
5052 |
} |
596 |
|
|
|
597 |
|
|
/* userinfo_create |
598 |
|
|
* |
599 |
|
|
* Parse a nick!user@host into a UserInfo struct |
600 |
|
|
* and return a pointer to the new struct. |
601 |
|
|
* |
602 |
|
|
* Parameters: |
603 |
|
|
* source: nick!user@host to parse |
604 |
|
|
* |
605 |
|
|
* Return: |
606 |
|
|
* pointer to new UserInfo struct, or NULL if parsing failed |
607 |
|
|
*/ |
608 |
michael |
5114 |
static struct UserInfo * |
609 |
|
|
userinfo_create(char *source) |
610 |
michael |
5052 |
{ |
611 |
michael |
5114 |
struct UserInfo *ret; |
612 |
|
|
char *nick; |
613 |
|
|
char *username; |
614 |
|
|
char *hostname; |
615 |
|
|
char *tmp; |
616 |
|
|
int i, len; |
617 |
michael |
5052 |
|
618 |
michael |
5114 |
nick = username = hostname = NULL; |
619 |
|
|
tmp = xstrdup(source); |
620 |
|
|
len = strlen(tmp); |
621 |
|
|
nick = tmp; |
622 |
michael |
5052 |
|
623 |
michael |
5114 |
for (i = 0; i < len; ++i) |
624 |
|
|
{ |
625 |
|
|
if (tmp[i] == '!') |
626 |
|
|
{ |
627 |
|
|
tmp[i] = '\0'; |
628 |
|
|
username = tmp + i + 1; |
629 |
|
|
} |
630 |
michael |
5052 |
|
631 |
michael |
5114 |
if (tmp[i] == '@') |
632 |
|
|
{ |
633 |
|
|
tmp[i] = '\0'; |
634 |
|
|
hostname = tmp + i + 1; |
635 |
|
|
} |
636 |
|
|
} |
637 |
michael |
5052 |
|
638 |
michael |
5114 |
if (nick == NULL || username == NULL || hostname == NULL) |
639 |
|
|
{ |
640 |
|
|
MyFree(tmp); |
641 |
|
|
return NULL; |
642 |
|
|
} |
643 |
michael |
5052 |
|
644 |
michael |
5274 |
ret = xcalloc(sizeof *ret); |
645 |
michael |
5114 |
ret->irc_nick = xstrdup(nick); |
646 |
|
|
ret->irc_username = xstrdup(username); |
647 |
|
|
ret->irc_hostname = xstrdup(hostname); |
648 |
michael |
5052 |
|
649 |
michael |
5114 |
MyFree(tmp); |
650 |
michael |
5052 |
|
651 |
michael |
5114 |
return ret; |
652 |
michael |
5052 |
}; |
653 |
|
|
|
654 |
|
|
/* userinfo_free |
655 |
|
|
* |
656 |
|
|
* Free a UserInfo struct created with userinfo_create. |
657 |
|
|
* |
658 |
|
|
* Parameters: |
659 |
|
|
* source: struct to free |
660 |
michael |
5114 |
* |
661 |
michael |
5052 |
* Return: None |
662 |
|
|
*/ |
663 |
michael |
5114 |
static void |
664 |
|
|
userinfo_free(struct UserInfo *source_p) |
665 |
michael |
5052 |
{ |
666 |
michael |
5114 |
if (source_p == NULL) |
667 |
|
|
return; |
668 |
michael |
5052 |
|
669 |
michael |
5114 |
MyFree(source_p->irc_nick); |
670 |
|
|
MyFree(source_p->irc_username); |
671 |
|
|
MyFree(source_p->irc_hostname); |
672 |
|
|
MyFree(source_p); |
673 |
michael |
5052 |
} |
674 |
|
|
|
675 |
|
|
/* m_perform |
676 |
|
|
* |
677 |
|
|
* actions to perform on IRC connection |
678 |
|
|
* |
679 |
|
|
* Parameters: |
680 |
|
|
* parv[0] = source |
681 |
|
|
* parv[1] = PING |
682 |
|
|
* parv[2] = PING TS/Package |
683 |
|
|
* |
684 |
|
|
* source_p: UserInfo struct of the source user, or NULL if |
685 |
|
|
* the source (parv[0]) is a server. |
686 |
|
|
*/ |
687 |
michael |
5114 |
static void |
688 |
michael |
5322 |
m_perform(char *parv[], unsigned int parc, char *msg, struct UserInfo *notused) |
689 |
michael |
5052 |
{ |
690 |
michael |
5114 |
node_t *node; |
691 |
michael |
5052 |
|
692 |
michael |
5114 |
log_printf("IRC -> Connected to %s:%d", IRCItem->server, IRCItem->port); |
693 |
michael |
5052 |
|
694 |
michael |
5114 |
/* Identify to nickserv if needed */ |
695 |
|
|
if (!EmptyString(IRCItem->nickserv)) |
696 |
|
|
irc_send("%s", IRCItem->nickserv); |
697 |
michael |
5052 |
|
698 |
michael |
5114 |
/* Oper */ |
699 |
|
|
irc_send("OPER %s", IRCItem->oper); |
700 |
michael |
5052 |
|
701 |
michael |
5114 |
/* Set modes */ |
702 |
|
|
irc_send("MODE %s %s", IRCItem->nick, IRCItem->mode); |
703 |
michael |
5052 |
|
704 |
michael |
5114 |
/* Set Away */ |
705 |
michael |
5083 |
if (!EmptyString(IRCItem->away)) |
706 |
|
|
irc_send("AWAY :%s", IRCItem->away); |
707 |
michael |
5052 |
|
708 |
michael |
5114 |
/* Perform */ |
709 |
|
|
LIST_FOREACH(node, IRCItem->performs->head) |
710 |
|
|
irc_send("%s", node->data); |
711 |
michael |
5052 |
|
712 |
michael |
5114 |
/* Join all listed channels. */ |
713 |
|
|
LIST_FOREACH(node, IRCItem->channels->head) |
714 |
|
|
{ |
715 |
michael |
5279 |
const struct ChannelConf *channel = node->data; |
716 |
michael |
5052 |
|
717 |
michael |
5114 |
if (EmptyString(channel->name)) |
718 |
|
|
continue; |
719 |
michael |
5052 |
|
720 |
michael |
5114 |
if (!EmptyString(channel->key)) |
721 |
|
|
irc_send("JOIN %s %s", channel->name, channel->key); |
722 |
|
|
else |
723 |
|
|
irc_send("JOIN %s", channel->name); |
724 |
|
|
} |
725 |
michael |
5052 |
} |
726 |
|
|
|
727 |
|
|
/* m_ping |
728 |
|
|
* |
729 |
|
|
* parv[0] = source |
730 |
|
|
* parv[1] = PING |
731 |
|
|
* parv[2] = PING TS/Package |
732 |
|
|
* |
733 |
|
|
* source_p: UserInfo struct of the source user, or NULL if |
734 |
|
|
* the source (parv[0]) is a server. |
735 |
|
|
*/ |
736 |
michael |
5114 |
static void |
737 |
michael |
5322 |
m_ping(char *parv[], unsigned int parc, char *msg, struct UserInfo *source_p) |
738 |
michael |
5052 |
{ |
739 |
michael |
5114 |
if (parc < 3) |
740 |
|
|
return; |
741 |
michael |
5052 |
|
742 |
michael |
5114 |
if (OPT_DEBUG >= 2) |
743 |
|
|
log_printf("IRC -> PING? PONG!"); |
744 |
michael |
5052 |
|
745 |
michael |
5114 |
irc_send("PONG %s", parv[2]); |
746 |
michael |
5052 |
} |
747 |
|
|
|
748 |
|
|
/* m_invite |
749 |
|
|
* |
750 |
|
|
* parv[0] = source |
751 |
|
|
* parv[1] = INVITE |
752 |
|
|
* parv[2] = target |
753 |
|
|
* parv[3] = channel |
754 |
|
|
* |
755 |
|
|
* source_p: UserInfo struct of the source user, or NULL if |
756 |
|
|
* the source (parv[0]) is a server. |
757 |
|
|
*/ |
758 |
michael |
5114 |
static void |
759 |
michael |
5322 |
m_invite(char *parv[], unsigned int parc, char *msg, struct UserInfo *source_p) |
760 |
michael |
5052 |
{ |
761 |
michael |
5322 |
struct ChannelConf *channel = NULL; |
762 |
michael |
5052 |
|
763 |
michael |
5114 |
if (parc < 4) |
764 |
|
|
return; |
765 |
michael |
5052 |
|
766 |
michael |
5114 |
log_printf("IRC -> Invited to %s by %s", parv[3], parv[0]); |
767 |
michael |
5052 |
|
768 |
michael |
5114 |
if ((channel = get_channel(parv[3])) == NULL) |
769 |
|
|
return; |
770 |
|
|
|
771 |
|
|
irc_send("JOIN %s %s", channel->name, channel->key); |
772 |
michael |
5052 |
} |
773 |
|
|
|
774 |
|
|
/* m_privmsg |
775 |
|
|
* |
776 |
|
|
* parv[0] = source |
777 |
|
|
* parv[1] = PRIVMSG |
778 |
|
|
* parv[2] = target (channel or user) |
779 |
|
|
* parv[3] = message |
780 |
|
|
* |
781 |
|
|
* source_p: UserInfo struct of the source user, or NULL if |
782 |
|
|
* the source (parv[0]) is a server. |
783 |
|
|
*/ |
784 |
michael |
5114 |
static void |
785 |
michael |
5322 |
m_privmsg(char *parv[], unsigned int parc, char *msg, struct UserInfo *source_p) |
786 |
michael |
5052 |
{ |
787 |
michael |
5322 |
struct ChannelConf *channel = NULL; |
788 |
michael |
5114 |
size_t nick_len; |
789 |
michael |
5052 |
|
790 |
michael |
5114 |
if (source_p == NULL) |
791 |
|
|
return; |
792 |
michael |
5052 |
|
793 |
michael |
5114 |
if (parc < 4) |
794 |
|
|
return; |
795 |
michael |
5052 |
|
796 |
michael |
5114 |
/* CTCP */ |
797 |
|
|
if (parv[3][0] == '\001') |
798 |
|
|
m_ctcp(parv, parc, msg, source_p); |
799 |
michael |
5052 |
|
800 |
michael |
5114 |
/* Only interested in privmsg to channels */ |
801 |
|
|
if (parv[2][0] != '#' && parv[2][0] != '&') |
802 |
|
|
return; |
803 |
michael |
5052 |
|
804 |
michael |
5114 |
/* Get a target */ |
805 |
|
|
if ((channel = get_channel(parv[2])) == NULL) |
806 |
|
|
return; |
807 |
michael |
5052 |
|
808 |
michael |
5114 |
/* Find a suitable length to compare with */ |
809 |
|
|
nick_len = strcspn(parv[3], " :,"); |
810 |
michael |
5052 |
|
811 |
michael |
5114 |
if (nick_len < 3 && strlen(IRCItem->nick) >= 3) |
812 |
|
|
nick_len = 3; |
813 |
michael |
5052 |
|
814 |
michael |
5114 |
/* message is a command */ |
815 |
|
|
if (strncasecmp(parv[3], IRCItem->nick, nick_len) == 0 || |
816 |
|
|
strncasecmp(parv[3], "!all", 4) == 0) |
817 |
|
|
{ |
818 |
|
|
/* XXX command_parse will alter parv[3]. */ |
819 |
|
|
command_parse(parv[3], msg, channel, source_p); |
820 |
|
|
} |
821 |
|
|
} |
822 |
michael |
5052 |
|
823 |
|
|
/* m_ctcp |
824 |
|
|
* parv[0] = source |
825 |
|
|
* parv[1] = PRIVMSG |
826 |
|
|
* parv[2] = target (channel or user) |
827 |
|
|
* parv[3] = message |
828 |
|
|
* |
829 |
|
|
* source_p: UserInfo struct of the source user, or NULL if |
830 |
|
|
* the source (parv[0]) is a server. |
831 |
|
|
* |
832 |
|
|
*/ |
833 |
michael |
5114 |
static void |
834 |
michael |
5322 |
m_ctcp(char *parv[], unsigned int parc, char *msg, struct UserInfo *source_p) |
835 |
michael |
5052 |
{ |
836 |
michael |
5084 |
if (strncasecmp(parv[3], "\001VERSION\001", 9) == 0) |
837 |
|
|
irc_send("NOTICE %s :\001VERSION Hybrid Open Proxy Monitor %s\001", |
838 |
|
|
source_p->irc_nick, VERSION); |
839 |
michael |
5052 |
} |
840 |
|
|
|
841 |
|
|
/* m_notice |
842 |
|
|
* |
843 |
|
|
* parv[0] = source |
844 |
|
|
* parv[1] = NOTICE |
845 |
|
|
* parv[2] = target |
846 |
|
|
* parv[3] = message |
847 |
|
|
* |
848 |
|
|
* |
849 |
|
|
* source_p: UserInfo struct of the source user, or NULL if |
850 |
|
|
* the source (parv[0]) is a server. |
851 |
|
|
* |
852 |
|
|
*/ |
853 |
michael |
5114 |
static void |
854 |
michael |
5322 |
m_notice(char *parv[], unsigned int parc, char *msg, struct UserInfo *source_p) |
855 |
michael |
5052 |
{ |
856 |
michael |
5114 |
static regex_t *preg = NULL; |
857 |
|
|
regmatch_t pmatch[5]; |
858 |
michael |
5279 |
int errnum; |
859 |
michael |
5114 |
char *user[4]; |
860 |
michael |
5052 |
|
861 |
michael |
5114 |
/* Not interested in notices from users */ |
862 |
|
|
if (source_p) |
863 |
|
|
return; |
864 |
michael |
5052 |
|
865 |
michael |
5322 |
if (parc < 4) |
866 |
|
|
return; |
867 |
|
|
|
868 |
michael |
5114 |
/* Compile the regular expression if it has not been already */ |
869 |
|
|
if (preg == NULL) |
870 |
|
|
{ |
871 |
michael |
5274 |
preg = xcalloc(sizeof *preg); |
872 |
michael |
5052 |
|
873 |
michael |
5114 |
if ((errnum = regcomp(preg, IRCItem->connregex, REG_ICASE | REG_EXTENDED))) |
874 |
|
|
{ |
875 |
michael |
5290 |
char errmsg[256]; |
876 |
|
|
|
877 |
|
|
regerror(errnum, preg, errmsg, sizeof(errmsg)); |
878 |
michael |
5114 |
log_printf("IRC REGEX -> Error when compiling regular expression"); |
879 |
|
|
log_printf("IRC REGEX -> %s", errmsg); |
880 |
michael |
5052 |
|
881 |
michael |
5114 |
MyFree(preg); |
882 |
|
|
preg = NULL; |
883 |
michael |
5052 |
return; |
884 |
michael |
5114 |
} |
885 |
|
|
} |
886 |
michael |
5052 |
|
887 |
michael |
5114 |
/* Match the expression against the possible connection notice */ |
888 |
|
|
if (regexec(preg, parv[3], 5, pmatch, 0)) |
889 |
|
|
return; |
890 |
michael |
5052 |
|
891 |
michael |
5114 |
if (OPT_DEBUG > 0) |
892 |
|
|
log_printf("IRC REGEX -> Regular expression caught connection notice. Parsing."); |
893 |
michael |
5052 |
|
894 |
michael |
5114 |
if (pmatch[4].rm_so == -1) |
895 |
|
|
{ |
896 |
|
|
log_printf("IRC REGEX -> pmatch[4].rm_so is -1 while parsing??? Aborting."); |
897 |
|
|
return; |
898 |
|
|
} |
899 |
michael |
5052 |
|
900 |
michael |
5114 |
/* |
901 |
|
|
* Offsets for data in the connection notice: |
902 |
|
|
* |
903 |
|
|
* NICKNAME: pmatch[1].rm_so TO pmatch[1].rm_eo |
904 |
|
|
* USERNAME: pmatch[2].rm_so TO pmatch[2].rm_eo |
905 |
|
|
* HOSTNAME: pmatch[3].rm_so TO pmatch[3].rm_eo |
906 |
|
|
* IP : pmatch[4].rm_so TO pmatch[4].rm_eo |
907 |
|
|
*/ |
908 |
michael |
5279 |
for (unsigned int i = 0; i < 4; ++i) |
909 |
michael |
5114 |
{ |
910 |
|
|
user[i] = (parv[3] + pmatch[i + 1].rm_so); |
911 |
|
|
*(parv[3] + pmatch[i + 1].rm_eo) = '\0'; |
912 |
|
|
} |
913 |
michael |
5052 |
|
914 |
michael |
5114 |
if (OPT_DEBUG > 0) |
915 |
|
|
log_printf("IRC REGEX -> Parsed %s!%s@%s [%s] from connection notice.", |
916 |
|
|
user[0], user[1], user[2], user[3]); |
917 |
michael |
5052 |
|
918 |
michael |
5114 |
/*FIXME (reminder) In the case of any rehash to the regex, preg MUST be freed first. |
919 |
|
|
regfree(preg); |
920 |
|
|
*/ |
921 |
michael |
5052 |
|
922 |
michael |
5114 |
/* Pass this information off to scan.c */ |
923 |
|
|
scan_connect(user, msg); |
924 |
michael |
5052 |
|
925 |
michael |
5114 |
/* Record the connect for stats purposes */ |
926 |
|
|
stats_connect(); |
927 |
michael |
5052 |
} |
928 |
|
|
|
929 |
|
|
/* m_userhost |
930 |
|
|
* |
931 |
|
|
* parv[0] = source |
932 |
|
|
* parv[1] = USERHOST |
933 |
michael |
5069 |
* parv[2] = target (hopm) |
934 |
michael |
5052 |
* parv[3] = :nick=(flags)user@host |
935 |
|
|
* |
936 |
|
|
* |
937 |
|
|
* source_p: UserInfo struct of the source user, or NULL if |
938 |
|
|
* the source (parv[0]) is a server. |
939 |
|
|
* |
940 |
|
|
*/ |
941 |
michael |
5114 |
static void |
942 |
michael |
5322 |
m_userhost(char *parv[], unsigned int parc, char *msg, struct UserInfo *source_p) |
943 |
michael |
5052 |
{ |
944 |
michael |
5114 |
if (parc < 4) |
945 |
|
|
return; |
946 |
michael |
5052 |
|
947 |
michael |
5114 |
command_userhost(parv[3]); |
948 |
michael |
5052 |
} |
949 |
|
|
|
950 |
|
|
/* m_cannot_join |
951 |
|
|
* |
952 |
|
|
* parv[0] = source |
953 |
|
|
* parv[1] = numeric |
954 |
michael |
5069 |
* parv[2] = target (hopm) |
955 |
michael |
5052 |
* parv[3] = channel |
956 |
|
|
* parv[4] = error text |
957 |
|
|
* |
958 |
|
|
*/ |
959 |
michael |
5114 |
static void |
960 |
michael |
5322 |
m_cannot_join(char *parv[], unsigned int parc, char *msg, struct UserInfo *source_p) |
961 |
michael |
5052 |
{ |
962 |
michael |
5279 |
const struct ChannelConf *channel = NULL; |
963 |
michael |
5052 |
|
964 |
michael |
5114 |
if (parc < 5) |
965 |
|
|
return; |
966 |
michael |
5052 |
|
967 |
michael |
5114 |
/* Is it one of our channels? */ |
968 |
|
|
if ((channel = get_channel(parv[3])) == NULL) |
969 |
|
|
return; |
970 |
michael |
5052 |
|
971 |
michael |
5114 |
if (EmptyString(channel->invite)) |
972 |
|
|
return; |
973 |
michael |
5052 |
|
974 |
michael |
5114 |
irc_send("%s", channel->invite); |
975 |
michael |
5052 |
} |
976 |
|
|
|
977 |
|
|
/* m_kill |
978 |
|
|
* |
979 |
|
|
* parv[0] = source |
980 |
|
|
* parv[1] = numeric |
981 |
michael |
5069 |
* parv[2] = target (hopm) |
982 |
michael |
5052 |
* parv[3] = channel |
983 |
|
|
* parv[4] = error text |
984 |
|
|
* |
985 |
|
|
*/ |
986 |
michael |
5114 |
static void |
987 |
michael |
5322 |
m_kill(char *parv[], unsigned int parc, char *msg, struct UserInfo *source_p) |
988 |
michael |
5052 |
{ |
989 |
michael |
5084 |
/* Restart hopm to rehash */ |
990 |
|
|
main_restart(); |
991 |
michael |
5052 |
} |