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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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*/ |
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#include "setup.h" |
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#include <stdio.h> |
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#include <unistd.h> |
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#ifdef STDC_HEADERS |
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# include <stdlib.h> |
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# include <string.h> |
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#endif |
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#ifdef HAVE_STRINGS_H |
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# include <strings.h> |
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#endif |
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#include <sys/types.h> |
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#include <sys/socket.h> |
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#include <netinet/in.h> |
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#include <arpa/inet.h> |
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#ifdef TIME_WITH_SYS_TIME |
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# include <sys/time.h> |
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# include <time.h> |
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#else |
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# ifdef HAVE_SYS_TIME_H |
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# include <sys/time.h> |
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# else |
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# include <time.h> |
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# endif |
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#endif |
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#include <errno.h> |
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#include <stdarg.h> |
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#include <regex.h> |
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58 |
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#include "config.h" |
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#include "irc.h" |
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#include "log.h" |
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#include "opercmd.h" |
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#include "scan.h" |
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#include "dnsbl.h" |
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#include "stats.h" |
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#include "extern.h" |
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#include "options.h" |
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#include "match.h" |
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#include "compat.h" |
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#include "negcache.h" |
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#include "malloc.h" |
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#include "main.h" |
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static void irc_init(void); |
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static void irc_connect(void); |
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static void irc_reconnect(void); |
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static void irc_read(void); |
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static void irc_parse(void); |
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80 |
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static struct ChannelConf *get_channel(const char *); |
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static struct UserInfo *userinfo_create(char *); |
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static void userinfo_free(struct UserInfo *source); |
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static void m_ping(char **, unsigned int, char *, struct UserInfo *); |
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static void m_invite(char **, unsigned int, char *, struct UserInfo *); |
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static void m_privmsg(char **, unsigned int, char *, struct UserInfo *); |
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static void m_ctcp(char **, unsigned int, char *, struct UserInfo *); |
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static void m_notice(char **, unsigned int, char *, struct UserInfo *); |
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static void m_perform(char **, unsigned int, char *, struct UserInfo *); |
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static void m_userhost(char **, unsigned int, char *, struct UserInfo *); |
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static void m_cannot_join(char **, unsigned int, char *, struct UserInfo *); |
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static void m_kill(char **, unsigned int, char *, struct UserInfo *); |
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extern struct cnode *nc_head; |
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/* |
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* Certain variables we don't want to allocate memory for over and over |
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* again so global scope is given. |
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*/ |
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char IRC_RAW[MSGLENMAX]; /* Buffer to read data into */ |
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char IRC_SENDBUFF[MSGLENMAX]; /* Send buffer */ |
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michael |
5125 |
static unsigned int IRC_RAW_LEN = 0; /* Position of IRC_RAW */ |
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michael |
5052 |
|
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int IRC_FD = 0; /* File descriptor for IRC client */ |
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struct bopm_sockaddr IRC_SVR; /* Sock Address Struct for IRC server */ |
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struct bopm_ircaddr IRC_LOCAL; /* Sock Address Struct for Bind */ |
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fd_set IRC_READ_FDSET; /* fd_set for IRC (read) data for select()*/ |
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struct timeval IRC_TIMEOUT; /* timeval struct for select() timeout */ |
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time_t IRC_LAST = 0; /* Last full line of data from irc server*/ |
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time_t IRC_LASTRECONNECT = 0; /* Time of last reconnection */ |
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michael |
5114 |
/* |
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* Table should be ordered with most occuring (or priority) |
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* commands at the top of the list. |
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*/ |
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static struct CommandHash COMMAND_TABLE[] = |
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{ |
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{ "NOTICE", m_notice }, |
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{ "PRIVMSG", m_privmsg }, |
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{ "PING", m_ping }, |
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{ "INVITE", m_invite }, |
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{ "001", m_perform }, |
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{ "302", m_userhost }, |
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{ "471", m_cannot_join }, |
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{ "473", m_cannot_join }, |
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{ "474", m_cannot_join }, |
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{ "475", m_cannot_join }, |
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{ "KILL", m_kill } |
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}; |
135 |
michael |
5052 |
|
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/* irc_cycle |
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* |
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michael |
5069 |
* Pass control to the IRC portion of HOPM to handle any awaiting IRC events. |
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michael |
5052 |
* |
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* Parameters: |
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* None |
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* |
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* Return: |
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* None |
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*/ |
146 |
michael |
5114 |
void |
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irc_cycle(void) |
148 |
michael |
5052 |
{ |
149 |
michael |
5114 |
if (IRC_FD <= 0) |
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{ |
151 |
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/* Initialise negative cache. */ |
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if (OptionsItem->negcache > 0) |
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nc_init(&nc_head); |
154 |
michael |
5052 |
|
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michael |
5114 |
/* Resolve remote host. */ |
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irc_init(); |
157 |
michael |
5052 |
|
158 |
michael |
5114 |
/* Connect to remote host. */ |
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irc_connect(); |
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return; /* In case connect() immediately failed */ |
161 |
michael |
5052 |
} |
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163 |
michael |
5114 |
IRC_TIMEOUT.tv_sec = 0; |
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michael |
5052 |
|
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michael |
5114 |
/* Block .025 seconds to avoid excessive CPU use on select(). */ |
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IRC_TIMEOUT.tv_usec = 25000; |
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michael |
5052 |
|
168 |
michael |
5114 |
FD_ZERO(&IRC_READ_FDSET); |
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FD_SET(IRC_FD, &IRC_READ_FDSET); |
170 |
michael |
5052 |
|
171 |
michael |
5114 |
switch (select((IRC_FD + 1), &IRC_READ_FDSET, 0, 0, &IRC_TIMEOUT)) |
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{ |
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case -1: |
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return; |
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break; |
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case 0: |
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break; |
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default: |
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/* Check if IRC data is available. */ |
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if (FD_ISSET(IRC_FD, &IRC_READ_FDSET)) |
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irc_read(); |
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michael |
5052 |
|
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michael |
5114 |
break; |
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} |
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} |
186 |
michael |
5052 |
|
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/* irc_init |
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* |
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* Resolve IRC host and perform other initialization. |
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* |
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* Parameters: |
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* None |
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* |
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* Return: |
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* None |
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*/ |
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michael |
5114 |
static void |
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irc_init(void) |
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michael |
5052 |
{ |
200 |
michael |
5114 |
struct bopm_sockaddr bsaddr; |
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struct in_addr *irc_host; |
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michael |
5052 |
|
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michael |
5114 |
if (IRC_FD) |
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close(IRC_FD); |
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michael |
5052 |
|
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michael |
5114 |
memset(&IRC_SVR, 0, sizeof(IRC_SVR)); |
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memset(&IRC_LOCAL, 0, sizeof(IRC_LOCAL)); |
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memset(&bsaddr, 0, sizeof(struct bopm_sockaddr)); |
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michael |
5052 |
|
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michael |
5114 |
/* Resolve IRC host. */ |
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if ((irc_host = firedns_resolveip4(IRCItem->server)) == NULL) |
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{ |
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log_printf("IRC -> firedns_resolveip4(\"%s\"): %s", IRCItem->server, |
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firedns_strerror(fdns_errno)); |
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exit(EXIT_FAILURE); |
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} |
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michael |
5052 |
|
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michael |
5114 |
IRC_SVR.sa4.sin_family = AF_INET; |
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IRC_SVR.sa4.sin_port = htons(IRCItem->port); |
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IRC_SVR.sa4.sin_addr = *irc_host; |
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michael |
5052 |
|
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michael |
5114 |
if (IRC_SVR.sa4.sin_addr.s_addr == INADDR_NONE) |
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{ |
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log_printf("IRC -> Unknown error resolving remote host (%s)", |
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IRCItem->server); |
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exit(EXIT_FAILURE); |
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} |
228 |
michael |
5052 |
|
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michael |
5114 |
/* Request file desc for IRC client socket */ |
230 |
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IRC_FD = socket(AF_INET, SOCK_STREAM, 0); |
231 |
michael |
5052 |
|
232 |
michael |
5114 |
if (IRC_FD == -1) |
233 |
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{ |
234 |
michael |
5116 |
switch (errno) |
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{ |
236 |
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case EINVAL: |
237 |
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case EPROTONOSUPPORT: |
238 |
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log_printf("IRC -> socket(): SOCK_STREAM is not supported on this domain"); |
239 |
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break; |
240 |
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case ENFILE: |
241 |
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log_printf("IRC -> socket(): Not enough free file descriptors to allocate IRC socket"); |
242 |
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break; |
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case EMFILE: |
244 |
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log_printf("IRC -> socket(): Process table overflow when requesting file descriptor"); |
245 |
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break; |
246 |
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case EACCES: |
247 |
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log_printf("IRC -> socket(): Permission denied to create socket of type SOCK_STREAM"); |
248 |
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break; |
249 |
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case ENOMEM: |
250 |
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log_printf("IRC -> socket(): Insufficient memory to allocate socket"); |
251 |
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break; |
252 |
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default: |
253 |
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log_printf("IRC -> socket(): Unknown error allocating socket"); |
254 |
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break; |
255 |
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} |
256 |
michael |
5114 |
|
257 |
michael |
5116 |
exit(EXIT_FAILURE); |
258 |
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} |
259 |
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260 |
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/* Bind */ |
261 |
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if (!EmptyString(IRCItem->vhost)) |
262 |
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{ |
263 |
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int bindret = 0; |
264 |
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265 |
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if (!inet_pton(AF_INET, IRCItem->vhost, &(IRC_LOCAL.in4.s_addr))) |
266 |
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{ |
267 |
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log_printf("IRC -> bind(): %s is an invalid address", IRCItem->vhost); |
268 |
michael |
5052 |
exit(EXIT_FAILURE); |
269 |
michael |
5116 |
} |
270 |
michael |
5052 |
|
271 |
michael |
5116 |
bsaddr.sa4.sin_addr.s_addr = IRC_LOCAL.in4.s_addr; |
272 |
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bsaddr.sa4.sin_family = AF_INET; |
273 |
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bsaddr.sa4.sin_port = htons(0); |
274 |
michael |
5114 |
|
275 |
michael |
5116 |
bindret = bind(IRC_FD, (struct sockaddr *) &(bsaddr.sa4), sizeof(bsaddr.sa4)); |
276 |
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277 |
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if (bindret) |
278 |
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{ |
279 |
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switch (errno) |
280 |
michael |
5052 |
{ |
281 |
michael |
5116 |
case EACCES: |
282 |
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log_printf("IRC -> bind(): No access to bind to %s", IRCItem->vhost); |
283 |
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break; |
284 |
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default: |
285 |
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log_printf("IRC -> bind(): Error binding to %s (%d)", IRCItem->vhost, errno); |
286 |
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break; |
287 |
michael |
5052 |
} |
288 |
michael |
5114 |
|
289 |
michael |
5116 |
exit(EXIT_FAILURE); |
290 |
michael |
5114 |
} |
291 |
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} |
292 |
michael |
5052 |
} |
293 |
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|
294 |
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/* irc_send |
295 |
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* |
296 |
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* Send data to remote IRC host. |
297 |
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* |
298 |
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* Parameters: |
299 |
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* data: Format of data to send |
300 |
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* ...: varargs to format with |
301 |
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* |
302 |
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* Return: NONE |
303 |
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*/ |
304 |
michael |
5114 |
void |
305 |
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irc_send(const char *data, ...) |
306 |
michael |
5052 |
{ |
307 |
michael |
5114 |
va_list arglist; |
308 |
|
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char data2[MSGLENMAX]; |
309 |
|
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char tosend[MSGLENMAX]; |
310 |
michael |
5052 |
|
311 |
michael |
5114 |
va_start(arglist, data); |
312 |
|
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vsnprintf(data2, MSGLENMAX, data, arglist); |
313 |
|
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va_end(arglist); |
314 |
michael |
5052 |
|
315 |
michael |
5114 |
if (OPT_DEBUG >= 2) |
316 |
|
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log_printf("IRC SEND -> %s", data2); |
317 |
michael |
5052 |
|
318 |
michael |
5114 |
snprintf(tosend, MSGLENMAX, "%s\n", data2); |
319 |
michael |
5052 |
|
320 |
michael |
5114 |
if (send(IRC_FD, tosend, strlen(tosend), 0) == -1) |
321 |
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{ |
322 |
|
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/* Return of -1 indicates error sending data; we reconnect. */ |
323 |
|
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log_printf("IRC -> Error sending data to server\n"); |
324 |
|
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irc_reconnect(); |
325 |
|
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} |
326 |
michael |
5052 |
} |
327 |
|
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|
328 |
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/* irc_send |
329 |
|
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* |
330 |
|
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* Send privmsg to all channels. |
331 |
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* |
332 |
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* Parameters: |
333 |
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* data: Format of data to send |
334 |
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* ...: varargs to format with |
335 |
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* |
336 |
|
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* Return: NONE |
337 |
|
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*/ |
338 |
michael |
5114 |
void |
339 |
|
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irc_send_channels(const char *data, ...) |
340 |
michael |
5052 |
{ |
341 |
michael |
5114 |
const node_t *node; |
342 |
|
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va_list arglist; |
343 |
|
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char buf[MSGLENMAX]; |
344 |
michael |
5052 |
|
345 |
michael |
5114 |
va_start(arglist, data); |
346 |
|
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vsnprintf(buf, sizeof(buf), data, arglist); |
347 |
|
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va_end(arglist); |
348 |
michael |
5052 |
|
349 |
|
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|
350 |
michael |
5114 |
LIST_FOREACH(node, IRCItem->channels->head) |
351 |
|
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{ |
352 |
|
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const struct ChannelConf *chan = node->data; |
353 |
michael |
5106 |
|
354 |
michael |
5114 |
irc_send("PRIVMSG %s :%s", chan->name, buf); |
355 |
|
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} |
356 |
michael |
5052 |
} |
357 |
|
|
|
358 |
|
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/* irc_connect |
359 |
|
|
* |
360 |
|
|
* Connect to IRC server. |
361 |
|
|
* XXX: FD allocation done here |
362 |
|
|
* |
363 |
|
|
* Parameters: NONE |
364 |
|
|
* Return: NONE |
365 |
|
|
*/ |
366 |
michael |
5114 |
static void |
367 |
|
|
irc_connect(void) |
368 |
michael |
5052 |
{ |
369 |
michael |
5114 |
/* Connect to IRC server as client. */ |
370 |
|
|
if (connect(IRC_FD, (struct sockaddr *)&IRC_SVR, sizeof(IRC_SVR)) == -1) |
371 |
|
|
{ |
372 |
|
|
switch (errno) |
373 |
|
|
{ |
374 |
|
|
case EISCONN: |
375 |
|
|
/* Already connected */ |
376 |
|
|
return; |
377 |
|
|
case ECONNREFUSED: |
378 |
|
|
log_printf("IRC -> connect(): Connection refused by (%s)", |
379 |
|
|
IRCItem->server); |
380 |
|
|
break; |
381 |
|
|
case ETIMEDOUT: |
382 |
|
|
log_printf("IRC -> connect(): Timed out connecting to (%s)", |
383 |
|
|
IRCItem->server); |
384 |
|
|
break; |
385 |
|
|
case ENETUNREACH: |
386 |
|
|
log_printf("IRC -> connect(): Network unreachable"); |
387 |
|
|
break; |
388 |
|
|
case EALREADY: |
389 |
|
|
/* Previous attempt not complete */ |
390 |
|
|
return; |
391 |
|
|
default: |
392 |
|
|
log_printf("IRC -> connect(): Unknown error connecting to (%s)", |
393 |
|
|
IRCItem->server); |
394 |
michael |
5052 |
|
395 |
michael |
5114 |
if (OPT_DEBUG >= 1) |
396 |
|
|
log_printf("%s", strerror(errno)); |
397 |
|
|
} |
398 |
michael |
5052 |
|
399 |
michael |
5114 |
/* Try to connect again */ |
400 |
|
|
irc_reconnect(); |
401 |
|
|
return; |
402 |
|
|
} |
403 |
michael |
5052 |
|
404 |
michael |
5114 |
irc_send("NICK %s", IRCItem->nick); |
405 |
michael |
5052 |
|
406 |
michael |
5114 |
if (!EmptyString(IRCItem->password)) |
407 |
|
|
irc_send("PASS %s", IRCItem->password); |
408 |
michael |
5052 |
|
409 |
michael |
5114 |
irc_send("USER %s %s %s :%s", |
410 |
|
|
IRCItem->username, |
411 |
|
|
IRCItem->username, |
412 |
|
|
IRCItem->username, |
413 |
|
|
IRCItem->realname); |
414 |
|
|
time(&IRC_LAST); |
415 |
michael |
5052 |
} |
416 |
|
|
|
417 |
|
|
/* irc_reconnect |
418 |
|
|
* |
419 |
|
|
* Close connection to IRC server. |
420 |
|
|
* |
421 |
|
|
* Parameters: NONE |
422 |
|
|
* |
423 |
|
|
* Return: NONE |
424 |
|
|
*/ |
425 |
michael |
5114 |
static void |
426 |
|
|
irc_reconnect(void) |
427 |
michael |
5052 |
{ |
428 |
michael |
5114 |
time_t present; |
429 |
michael |
5052 |
|
430 |
michael |
5114 |
time(&present); |
431 |
michael |
5052 |
|
432 |
michael |
5114 |
/* Only try to reconnect every RECONNECT_INTERVAL seconds */ |
433 |
|
|
if ((present - IRC_LASTRECONNECT) < RECONNECTINTERVAL) |
434 |
|
|
{ |
435 |
|
|
/* Sleep to avoid excessive CPU */ |
436 |
|
|
sleep(1); |
437 |
|
|
return; |
438 |
|
|
} |
439 |
michael |
5052 |
|
440 |
michael |
5114 |
time(&IRC_LASTRECONNECT); |
441 |
michael |
5052 |
|
442 |
michael |
5114 |
if (IRC_FD > 0) |
443 |
|
|
close(IRC_FD); |
444 |
michael |
5052 |
|
445 |
michael |
5114 |
/* Set IRC_FD 0 for reconnection on next irc_cycle(). */ |
446 |
|
|
IRC_FD = 0; |
447 |
|
|
|
448 |
|
|
log_printf("IRC -> Connection to (%s) failed, reconnecting.", IRCItem->server); |
449 |
michael |
5052 |
} |
450 |
|
|
|
451 |
|
|
/* irc_read |
452 |
|
|
* |
453 |
|
|
* irc_read is called my irc_cycle when new data is ready to be |
454 |
michael |
5114 |
* read from the irc server. |
455 |
michael |
5052 |
* |
456 |
|
|
* Parameters: NONE |
457 |
|
|
* Return: NONE |
458 |
|
|
*/ |
459 |
michael |
5114 |
static void |
460 |
|
|
irc_read(void) |
461 |
michael |
5052 |
{ |
462 |
michael |
5116 |
int len; |
463 |
|
|
char c; |
464 |
michael |
5052 |
|
465 |
michael |
5116 |
while ((len = read(IRC_FD, &c, 1)) > 0) |
466 |
|
|
{ |
467 |
|
|
if (c == '\r') |
468 |
|
|
continue; |
469 |
michael |
5052 |
|
470 |
michael |
5116 |
if (c == '\n') |
471 |
|
|
{ |
472 |
|
|
/* Null string. */ |
473 |
|
|
IRC_RAW[IRC_RAW_LEN] = '\0'; |
474 |
michael |
5052 |
|
475 |
michael |
5116 |
/* Parse line. */ |
476 |
|
|
irc_parse(); |
477 |
michael |
5052 |
|
478 |
michael |
5116 |
/* Reset counter. */ |
479 |
michael |
5052 |
IRC_RAW_LEN = 0; |
480 |
michael |
5116 |
break; |
481 |
|
|
} |
482 |
|
|
|
483 |
michael |
5124 |
if (c != '\0') |
484 |
michael |
5116 |
IRC_RAW[IRC_RAW_LEN++] = c; |
485 |
|
|
} |
486 |
|
|
|
487 |
|
|
if ((len <= 0) && (errno != EAGAIN)) |
488 |
|
|
{ |
489 |
|
|
if (OPT_DEBUG >= 2) |
490 |
|
|
log_printf("irc_read -> errno=%d len=%d", errno, len); |
491 |
|
|
|
492 |
|
|
irc_reconnect(); |
493 |
|
|
IRC_RAW_LEN = 0; |
494 |
|
|
return; |
495 |
|
|
} |
496 |
michael |
5052 |
} |
497 |
|
|
|
498 |
|
|
/* irc_parse |
499 |
|
|
* |
500 |
|
|
* irc_parse is called by irc_read when a full line of data |
501 |
|
|
* is ready to be parsed. |
502 |
|
|
* |
503 |
|
|
* Parameters: NONE |
504 |
|
|
* Return: NONE |
505 |
|
|
*/ |
506 |
michael |
5114 |
static void |
507 |
|
|
irc_parse(void) |
508 |
michael |
5052 |
{ |
509 |
michael |
5116 |
struct UserInfo *source_p; |
510 |
|
|
char *pos; |
511 |
michael |
5052 |
|
512 |
michael |
5116 |
/* |
513 |
|
|
* parv stores the parsed token, parc is the count of the parsed |
514 |
|
|
* tokens |
515 |
|
|
* |
516 |
|
|
* parv[0] is ALWAYS the source, and is the server name of the source |
517 |
|
|
* did not exist |
518 |
michael |
5052 |
*/ |
519 |
michael |
5116 |
static char *parv[17]; |
520 |
|
|
static unsigned int parc; |
521 |
|
|
static char msg[MSGLENMAX]; /* Temporarily stores IRC msg to pass to handlers */ |
522 |
michael |
5052 |
|
523 |
michael |
5116 |
parc = 1; |
524 |
michael |
5052 |
|
525 |
michael |
5125 |
if (IRC_RAW_LEN == 0) |
526 |
michael |
5116 |
return; |
527 |
michael |
5052 |
|
528 |
michael |
5116 |
if (OPT_DEBUG >= 2) |
529 |
|
|
log_printf("IRC READ -> %s", IRC_RAW); |
530 |
michael |
5052 |
|
531 |
michael |
5116 |
time(&IRC_LAST); |
532 |
michael |
5052 |
|
533 |
michael |
5116 |
/* Store a copy of IRC_RAW for the handlers (for functions that need PROOF) */ |
534 |
|
|
strlcpy(msg, IRC_RAW, sizeof(msg)); |
535 |
michael |
5052 |
|
536 |
michael |
5116 |
/* parv[0] is always the source */ |
537 |
|
|
if (IRC_RAW[0] == ':') |
538 |
|
|
parv[0] = IRC_RAW + 1; |
539 |
|
|
else |
540 |
|
|
{ |
541 |
|
|
parv[0] = IRCItem->server; |
542 |
|
|
parv[parc++] = IRC_RAW; |
543 |
|
|
} |
544 |
michael |
5052 |
|
545 |
michael |
5116 |
pos = IRC_RAW; |
546 |
michael |
5052 |
|
547 |
michael |
5116 |
while ((pos = strchr(pos, ' ')) && parc <= 17) |
548 |
|
|
{ |
549 |
|
|
/* Avoid excessive spaces and end of IRC_RAW */ |
550 |
|
|
if (*(pos + 1) == ' ' && *(pos + 1) == '\0') |
551 |
|
|
{ |
552 |
|
|
pos++; |
553 |
|
|
continue; |
554 |
|
|
} |
555 |
michael |
5052 |
|
556 |
michael |
5116 |
/* Anything after a : is considered the final string of the message */ |
557 |
|
|
if (*(pos + 1) == ':') |
558 |
|
|
{ |
559 |
|
|
parv[parc++] = pos + 2; |
560 |
michael |
5052 |
*pos = '\0'; |
561 |
michael |
5116 |
break; |
562 |
|
|
} |
563 |
michael |
5052 |
|
564 |
michael |
5116 |
/* |
565 |
|
|
* Set the next parv at this position and replace the space with a |
566 |
|
|
* \0 for the previous parv |
567 |
|
|
*/ |
568 |
|
|
parv[parc++] = pos + 1; |
569 |
|
|
*pos = '\0'; |
570 |
|
|
pos++; |
571 |
|
|
} |
572 |
michael |
5052 |
|
573 |
michael |
5116 |
/* Generate a UserInfo struct from the source */ |
574 |
|
|
source_p = userinfo_create(parv[0]); |
575 |
michael |
5052 |
|
576 |
michael |
5116 |
/* |
577 |
|
|
* Determine which command this is from the command table |
578 |
|
|
* and let the handler for that command take control |
579 |
|
|
*/ |
580 |
|
|
for (unsigned int i = 0; i < (sizeof(COMMAND_TABLE) / sizeof(struct CommandHash)); ++i) |
581 |
|
|
{ |
582 |
|
|
if (strcasecmp(COMMAND_TABLE[i].command, parv[1]) == 0) |
583 |
|
|
{ |
584 |
|
|
(*COMMAND_TABLE[i].handler)(parv, parc, msg, source_p); |
585 |
|
|
break; |
586 |
|
|
} |
587 |
|
|
} |
588 |
michael |
5052 |
|
589 |
michael |
5116 |
userinfo_free(source_p); |
590 |
michael |
5052 |
} |
591 |
|
|
|
592 |
|
|
/* irc_timer |
593 |
|
|
* |
594 |
|
|
* Functions to be performed every ~seconds. |
595 |
|
|
* |
596 |
|
|
* Parameters: NONE |
597 |
|
|
* Return: NONE |
598 |
|
|
*/ |
599 |
michael |
5114 |
void |
600 |
|
|
irc_timer(void) |
601 |
michael |
5052 |
{ |
602 |
michael |
5114 |
time_t present, delta; |
603 |
michael |
5052 |
|
604 |
michael |
5114 |
time(&present); |
605 |
michael |
5052 |
|
606 |
michael |
5114 |
delta = present - IRC_LAST; |
607 |
michael |
5052 |
|
608 |
michael |
5114 |
/* No data in NODATA_TIMEOUT minutes (set in options.h). */ |
609 |
|
|
if (delta >= NODATA_TIMEOUT) |
610 |
|
|
{ |
611 |
|
|
log_printf("IRC -> Timeout awaiting data from server."); |
612 |
|
|
irc_reconnect(); |
613 |
michael |
5052 |
|
614 |
michael |
5114 |
/* Make sure we dont do this again for a while */ |
615 |
|
|
time(&IRC_LAST); |
616 |
|
|
} |
617 |
|
|
else if (delta >= NODATA_TIMEOUT / 2) |
618 |
|
|
{ |
619 |
|
|
/* |
620 |
|
|
* Generate some data so high ping times or bugs in certain |
621 |
|
|
* ircds (*cough* unreal *cough*) don't cause uneeded |
622 |
|
|
* reconnections |
623 |
|
|
*/ |
624 |
|
|
irc_send("PING :HOPM"); |
625 |
|
|
} |
626 |
michael |
5052 |
} |
627 |
|
|
|
628 |
|
|
/* get_channel |
629 |
|
|
* |
630 |
|
|
* Check if a channel is defined in our conf. If so return |
631 |
|
|
* a pointer to it. |
632 |
|
|
* |
633 |
|
|
* Parameters: |
634 |
|
|
* channel: channel to search conf for |
635 |
|
|
* |
636 |
|
|
* Return: Pointer to ChannelConf containing the channel |
637 |
|
|
*/ |
638 |
michael |
5114 |
static struct ChannelConf * |
639 |
|
|
get_channel(const char *channel) |
640 |
michael |
5052 |
{ |
641 |
michael |
5114 |
node_t *node; |
642 |
michael |
5052 |
|
643 |
michael |
5114 |
LIST_FOREACH(node, IRCItem->channels->head) |
644 |
|
|
{ |
645 |
michael |
5116 |
struct ChannelConf *item = node->data; |
646 |
michael |
5052 |
|
647 |
michael |
5114 |
if (strcasecmp(item->name, channel) == 0) |
648 |
|
|
return item; |
649 |
|
|
} |
650 |
michael |
5052 |
|
651 |
michael |
5114 |
return NULL; |
652 |
michael |
5052 |
} |
653 |
|
|
|
654 |
|
|
/* userinfo_create |
655 |
|
|
* |
656 |
|
|
* Parse a nick!user@host into a UserInfo struct |
657 |
|
|
* and return a pointer to the new struct. |
658 |
|
|
* |
659 |
|
|
* Parameters: |
660 |
|
|
* source: nick!user@host to parse |
661 |
|
|
* |
662 |
|
|
* Return: |
663 |
|
|
* pointer to new UserInfo struct, or NULL if parsing failed |
664 |
|
|
*/ |
665 |
michael |
5114 |
static struct UserInfo * |
666 |
|
|
userinfo_create(char *source) |
667 |
michael |
5052 |
{ |
668 |
michael |
5114 |
struct UserInfo *ret; |
669 |
|
|
char *nick; |
670 |
|
|
char *username; |
671 |
|
|
char *hostname; |
672 |
|
|
char *tmp; |
673 |
|
|
int i, len; |
674 |
michael |
5052 |
|
675 |
michael |
5114 |
nick = username = hostname = NULL; |
676 |
|
|
tmp = xstrdup(source); |
677 |
|
|
len = strlen(tmp); |
678 |
|
|
nick = tmp; |
679 |
michael |
5052 |
|
680 |
michael |
5114 |
for (i = 0; i < len; ++i) |
681 |
|
|
{ |
682 |
|
|
if (tmp[i] == '!') |
683 |
|
|
{ |
684 |
|
|
tmp[i] = '\0'; |
685 |
|
|
username = tmp + i + 1; |
686 |
|
|
} |
687 |
michael |
5052 |
|
688 |
michael |
5114 |
if (tmp[i] == '@') |
689 |
|
|
{ |
690 |
|
|
tmp[i] = '\0'; |
691 |
|
|
hostname = tmp + i + 1; |
692 |
|
|
} |
693 |
|
|
} |
694 |
michael |
5052 |
|
695 |
michael |
5114 |
if (nick == NULL || username == NULL || hostname == NULL) |
696 |
|
|
{ |
697 |
|
|
MyFree(tmp); |
698 |
|
|
return NULL; |
699 |
|
|
} |
700 |
michael |
5052 |
|
701 |
michael |
5114 |
ret = MyMalloc(sizeof *ret); |
702 |
|
|
ret->irc_nick = xstrdup(nick); |
703 |
|
|
ret->irc_username = xstrdup(username); |
704 |
|
|
ret->irc_hostname = xstrdup(hostname); |
705 |
michael |
5052 |
|
706 |
michael |
5114 |
MyFree(tmp); |
707 |
michael |
5052 |
|
708 |
michael |
5114 |
return ret; |
709 |
michael |
5052 |
}; |
710 |
|
|
|
711 |
|
|
/* userinfo_free |
712 |
|
|
* |
713 |
|
|
* Free a UserInfo struct created with userinfo_create. |
714 |
|
|
* |
715 |
|
|
* Parameters: |
716 |
|
|
* source: struct to free |
717 |
michael |
5114 |
* |
718 |
michael |
5052 |
* Return: None |
719 |
|
|
*/ |
720 |
michael |
5114 |
static void |
721 |
|
|
userinfo_free(struct UserInfo *source_p) |
722 |
michael |
5052 |
{ |
723 |
michael |
5114 |
if (source_p == NULL) |
724 |
|
|
return; |
725 |
michael |
5052 |
|
726 |
michael |
5114 |
MyFree(source_p->irc_nick); |
727 |
|
|
MyFree(source_p->irc_username); |
728 |
|
|
MyFree(source_p->irc_hostname); |
729 |
|
|
MyFree(source_p); |
730 |
michael |
5052 |
} |
731 |
|
|
|
732 |
|
|
/* m_perform |
733 |
|
|
* |
734 |
|
|
* actions to perform on IRC connection |
735 |
|
|
* |
736 |
|
|
* Parameters: |
737 |
|
|
* parv[0] = source |
738 |
|
|
* parv[1] = PING |
739 |
|
|
* parv[2] = PING TS/Package |
740 |
|
|
* |
741 |
|
|
* source_p: UserInfo struct of the source user, or NULL if |
742 |
|
|
* the source (parv[0]) is a server. |
743 |
|
|
*/ |
744 |
michael |
5114 |
static void |
745 |
|
|
m_perform(char **parv, unsigned int parc, char *msg, struct UserInfo *notused) |
746 |
michael |
5052 |
{ |
747 |
michael |
5114 |
node_t *node; |
748 |
michael |
5052 |
|
749 |
michael |
5114 |
log_printf("IRC -> Connected to %s:%d", IRCItem->server, IRCItem->port); |
750 |
michael |
5052 |
|
751 |
michael |
5114 |
/* Identify to nickserv if needed */ |
752 |
|
|
if (!EmptyString(IRCItem->nickserv)) |
753 |
|
|
irc_send("%s", IRCItem->nickserv); |
754 |
michael |
5052 |
|
755 |
michael |
5114 |
/* Oper */ |
756 |
|
|
irc_send("OPER %s", IRCItem->oper); |
757 |
michael |
5052 |
|
758 |
michael |
5114 |
/* Set modes */ |
759 |
|
|
irc_send("MODE %s %s", IRCItem->nick, IRCItem->mode); |
760 |
michael |
5052 |
|
761 |
michael |
5114 |
/* Set Away */ |
762 |
michael |
5083 |
if (!EmptyString(IRCItem->away)) |
763 |
|
|
irc_send("AWAY :%s", IRCItem->away); |
764 |
michael |
5052 |
|
765 |
michael |
5114 |
/* Perform */ |
766 |
|
|
LIST_FOREACH(node, IRCItem->performs->head) |
767 |
|
|
irc_send("%s", node->data); |
768 |
michael |
5052 |
|
769 |
michael |
5114 |
/* Join all listed channels. */ |
770 |
|
|
LIST_FOREACH(node, IRCItem->channels->head) |
771 |
|
|
{ |
772 |
|
|
struct ChannelConf *channel = node->data; |
773 |
michael |
5052 |
|
774 |
michael |
5114 |
if (EmptyString(channel->name)) |
775 |
|
|
continue; |
776 |
michael |
5052 |
|
777 |
michael |
5114 |
if (!EmptyString(channel->key)) |
778 |
|
|
irc_send("JOIN %s %s", channel->name, channel->key); |
779 |
|
|
else |
780 |
|
|
irc_send("JOIN %s", channel->name); |
781 |
|
|
} |
782 |
michael |
5052 |
} |
783 |
|
|
|
784 |
|
|
/* m_ping |
785 |
|
|
* |
786 |
|
|
* parv[0] = source |
787 |
|
|
* parv[1] = PING |
788 |
|
|
* parv[2] = PING TS/Package |
789 |
|
|
* |
790 |
|
|
* source_p: UserInfo struct of the source user, or NULL if |
791 |
|
|
* the source (parv[0]) is a server. |
792 |
|
|
*/ |
793 |
michael |
5114 |
static void |
794 |
|
|
m_ping(char **parv, unsigned int parc, char *msg, struct UserInfo *source_p) |
795 |
michael |
5052 |
{ |
796 |
michael |
5114 |
if (parc < 3) |
797 |
|
|
return; |
798 |
michael |
5052 |
|
799 |
michael |
5114 |
if (OPT_DEBUG >= 2) |
800 |
|
|
log_printf("IRC -> PING? PONG!"); |
801 |
michael |
5052 |
|
802 |
michael |
5114 |
irc_send("PONG %s", parv[2]); |
803 |
michael |
5052 |
} |
804 |
|
|
|
805 |
|
|
/* m_invite |
806 |
|
|
* |
807 |
|
|
* parv[0] = source |
808 |
|
|
* parv[1] = INVITE |
809 |
|
|
* parv[2] = target |
810 |
|
|
* parv[3] = channel |
811 |
|
|
* |
812 |
|
|
* source_p: UserInfo struct of the source user, or NULL if |
813 |
|
|
* the source (parv[0]) is a server. |
814 |
|
|
*/ |
815 |
michael |
5114 |
static void |
816 |
|
|
m_invite(char **parv, unsigned int parc, char *msg, struct UserInfo *source_p) |
817 |
michael |
5052 |
{ |
818 |
michael |
5114 |
struct ChannelConf *channel; |
819 |
michael |
5052 |
|
820 |
michael |
5114 |
if (parc < 4) |
821 |
|
|
return; |
822 |
michael |
5052 |
|
823 |
michael |
5114 |
log_printf("IRC -> Invited to %s by %s", parv[3], parv[0]); |
824 |
michael |
5052 |
|
825 |
michael |
5114 |
if ((channel = get_channel(parv[3])) == NULL) |
826 |
|
|
return; |
827 |
|
|
|
828 |
|
|
irc_send("JOIN %s %s", channel->name, channel->key); |
829 |
michael |
5052 |
} |
830 |
|
|
|
831 |
|
|
/* m_privmsg |
832 |
|
|
* |
833 |
|
|
* parv[0] = source |
834 |
|
|
* parv[1] = PRIVMSG |
835 |
|
|
* parv[2] = target (channel or user) |
836 |
|
|
* parv[3] = message |
837 |
|
|
* |
838 |
|
|
* source_p: UserInfo struct of the source user, or NULL if |
839 |
|
|
* the source (parv[0]) is a server. |
840 |
|
|
*/ |
841 |
michael |
5114 |
static void |
842 |
|
|
m_privmsg(char **parv, unsigned int parc, char *msg, struct UserInfo *source_p) |
843 |
michael |
5052 |
{ |
844 |
michael |
5114 |
struct ChannelConf *channel; |
845 |
|
|
size_t nick_len; |
846 |
michael |
5052 |
|
847 |
michael |
5114 |
if (source_p == NULL) |
848 |
|
|
return; |
849 |
michael |
5052 |
|
850 |
michael |
5114 |
if (parc < 4) |
851 |
|
|
return; |
852 |
michael |
5052 |
|
853 |
michael |
5114 |
/* CTCP */ |
854 |
|
|
if (parv[3][0] == '\001') |
855 |
|
|
m_ctcp(parv, parc, msg, source_p); |
856 |
michael |
5052 |
|
857 |
michael |
5114 |
/* Only interested in privmsg to channels */ |
858 |
|
|
if (parv[2][0] != '#' && parv[2][0] != '&') |
859 |
|
|
return; |
860 |
michael |
5052 |
|
861 |
michael |
5114 |
/* Get a target */ |
862 |
|
|
if ((channel = get_channel(parv[2])) == NULL) |
863 |
|
|
return; |
864 |
michael |
5052 |
|
865 |
michael |
5114 |
/* Find a suitable length to compare with */ |
866 |
|
|
nick_len = strcspn(parv[3], " :,"); |
867 |
michael |
5052 |
|
868 |
michael |
5114 |
if (nick_len < 3 && strlen(IRCItem->nick) >= 3) |
869 |
|
|
nick_len = 3; |
870 |
michael |
5052 |
|
871 |
michael |
5114 |
/* message is a command */ |
872 |
|
|
if (strncasecmp(parv[3], IRCItem->nick, nick_len) == 0 || |
873 |
|
|
strncasecmp(parv[3], "!all", 4) == 0) |
874 |
|
|
{ |
875 |
|
|
/* XXX command_parse will alter parv[3]. */ |
876 |
|
|
command_parse(parv[3], msg, channel, source_p); |
877 |
|
|
} |
878 |
|
|
} |
879 |
michael |
5052 |
|
880 |
|
|
/* m_ctcp |
881 |
|
|
* parv[0] = source |
882 |
|
|
* parv[1] = PRIVMSG |
883 |
|
|
* parv[2] = target (channel or user) |
884 |
|
|
* parv[3] = message |
885 |
|
|
* |
886 |
|
|
* source_p: UserInfo struct of the source user, or NULL if |
887 |
|
|
* the source (parv[0]) is a server. |
888 |
|
|
* |
889 |
|
|
*/ |
890 |
michael |
5114 |
static void |
891 |
|
|
m_ctcp(char **parv, unsigned int parc, char *msg, struct UserInfo *source_p) |
892 |
michael |
5052 |
{ |
893 |
michael |
5084 |
if (strncasecmp(parv[3], "\001VERSION\001", 9) == 0) |
894 |
|
|
irc_send("NOTICE %s :\001VERSION Hybrid Open Proxy Monitor %s\001", |
895 |
|
|
source_p->irc_nick, VERSION); |
896 |
michael |
5052 |
} |
897 |
|
|
|
898 |
|
|
/* m_notice |
899 |
|
|
* |
900 |
|
|
* parv[0] = source |
901 |
|
|
* parv[1] = NOTICE |
902 |
|
|
* parv[2] = target |
903 |
|
|
* parv[3] = message |
904 |
|
|
* |
905 |
|
|
* |
906 |
|
|
* source_p: UserInfo struct of the source user, or NULL if |
907 |
|
|
* the source (parv[0]) is a server. |
908 |
|
|
* |
909 |
|
|
*/ |
910 |
michael |
5114 |
static void |
911 |
|
|
m_notice(char **parv, unsigned int parc, char *msg, struct UserInfo *source_p) |
912 |
michael |
5052 |
{ |
913 |
michael |
5114 |
static regex_t *preg = NULL; |
914 |
|
|
regmatch_t pmatch[5]; |
915 |
michael |
5052 |
|
916 |
michael |
5114 |
static char errmsg[256]; |
917 |
|
|
int errnum, i; |
918 |
|
|
char *user[4]; |
919 |
michael |
5052 |
|
920 |
michael |
5114 |
if (parc < 4) |
921 |
|
|
return; |
922 |
michael |
5052 |
|
923 |
michael |
5114 |
/* Not interested in notices from users */ |
924 |
|
|
if (source_p) |
925 |
|
|
return; |
926 |
michael |
5052 |
|
927 |
michael |
5114 |
/* Compile the regular expression if it has not been already */ |
928 |
|
|
if (preg == NULL) |
929 |
|
|
{ |
930 |
|
|
preg = MyMalloc(sizeof *preg); |
931 |
michael |
5052 |
|
932 |
michael |
5114 |
if ((errnum = regcomp(preg, IRCItem->connregex, REG_ICASE | REG_EXTENDED))) |
933 |
|
|
{ |
934 |
|
|
regerror(errnum, preg, errmsg, 256); |
935 |
|
|
log_printf("IRC REGEX -> Error when compiling regular expression"); |
936 |
|
|
log_printf("IRC REGEX -> %s", errmsg); |
937 |
michael |
5052 |
|
938 |
michael |
5114 |
MyFree(preg); |
939 |
|
|
preg = NULL; |
940 |
michael |
5052 |
return; |
941 |
michael |
5114 |
} |
942 |
|
|
} |
943 |
michael |
5052 |
|
944 |
michael |
5114 |
/* Match the expression against the possible connection notice */ |
945 |
|
|
if (regexec(preg, parv[3], 5, pmatch, 0)) |
946 |
|
|
return; |
947 |
michael |
5052 |
|
948 |
michael |
5114 |
if (OPT_DEBUG > 0) |
949 |
|
|
log_printf("IRC REGEX -> Regular expression caught connection notice. Parsing."); |
950 |
michael |
5052 |
|
951 |
michael |
5114 |
if (pmatch[4].rm_so == -1) |
952 |
|
|
{ |
953 |
|
|
log_printf("IRC REGEX -> pmatch[4].rm_so is -1 while parsing??? Aborting."); |
954 |
|
|
return; |
955 |
|
|
} |
956 |
michael |
5052 |
|
957 |
michael |
5114 |
/* |
958 |
|
|
* Offsets for data in the connection notice: |
959 |
|
|
* |
960 |
|
|
* NICKNAME: pmatch[1].rm_so TO pmatch[1].rm_eo |
961 |
|
|
* USERNAME: pmatch[2].rm_so TO pmatch[2].rm_eo |
962 |
|
|
* HOSTNAME: pmatch[3].rm_so TO pmatch[3].rm_eo |
963 |
|
|
* IP : pmatch[4].rm_so TO pmatch[4].rm_eo |
964 |
|
|
*/ |
965 |
|
|
for (i = 0; i < 4; ++i) |
966 |
|
|
{ |
967 |
|
|
user[i] = (parv[3] + pmatch[i + 1].rm_so); |
968 |
|
|
*(parv[3] + pmatch[i + 1].rm_eo) = '\0'; |
969 |
|
|
} |
970 |
michael |
5052 |
|
971 |
michael |
5114 |
if (OPT_DEBUG > 0) |
972 |
|
|
log_printf("IRC REGEX -> Parsed %s!%s@%s [%s] from connection notice.", |
973 |
|
|
user[0], user[1], user[2], user[3]); |
974 |
michael |
5052 |
|
975 |
michael |
5114 |
/*FIXME (reminder) In the case of any rehash to the regex, preg MUST be freed first. |
976 |
|
|
regfree(preg); |
977 |
|
|
*/ |
978 |
michael |
5052 |
|
979 |
michael |
5114 |
/* Pass this information off to scan.c */ |
980 |
|
|
scan_connect(user, msg); |
981 |
michael |
5052 |
|
982 |
michael |
5114 |
/* Record the connect for stats purposes */ |
983 |
|
|
stats_connect(); |
984 |
michael |
5052 |
} |
985 |
|
|
|
986 |
|
|
/* m_userhost |
987 |
|
|
* |
988 |
|
|
* parv[0] = source |
989 |
|
|
* parv[1] = USERHOST |
990 |
michael |
5069 |
* parv[2] = target (hopm) |
991 |
michael |
5052 |
* parv[3] = :nick=(flags)user@host |
992 |
|
|
* |
993 |
|
|
* |
994 |
|
|
* source_p: UserInfo struct of the source user, or NULL if |
995 |
|
|
* the source (parv[0]) is a server. |
996 |
|
|
* |
997 |
|
|
*/ |
998 |
michael |
5114 |
static void |
999 |
|
|
m_userhost(char **parv, unsigned int parc, char *msg, struct UserInfo *source_p) |
1000 |
michael |
5052 |
{ |
1001 |
michael |
5114 |
if (parc < 4) |
1002 |
|
|
return; |
1003 |
michael |
5052 |
|
1004 |
michael |
5114 |
command_userhost(parv[3]); |
1005 |
michael |
5052 |
} |
1006 |
|
|
|
1007 |
|
|
/* m_cannot_join |
1008 |
|
|
* |
1009 |
|
|
* parv[0] = source |
1010 |
|
|
* parv[1] = numeric |
1011 |
michael |
5069 |
* parv[2] = target (hopm) |
1012 |
michael |
5052 |
* parv[3] = channel |
1013 |
|
|
* parv[4] = error text |
1014 |
|
|
* |
1015 |
|
|
*/ |
1016 |
michael |
5114 |
static void |
1017 |
|
|
m_cannot_join(char **parv, unsigned int parc, char *msg, struct UserInfo *source_p) |
1018 |
michael |
5052 |
{ |
1019 |
michael |
5114 |
struct ChannelConf *channel; |
1020 |
michael |
5052 |
|
1021 |
michael |
5114 |
if (parc < 5) |
1022 |
|
|
return; |
1023 |
michael |
5052 |
|
1024 |
michael |
5114 |
/* Is it one of our channels? */ |
1025 |
|
|
if ((channel = get_channel(parv[3])) == NULL) |
1026 |
|
|
return; |
1027 |
michael |
5052 |
|
1028 |
michael |
5114 |
if (EmptyString(channel->invite)) |
1029 |
|
|
return; |
1030 |
michael |
5052 |
|
1031 |
michael |
5114 |
irc_send("%s", channel->invite); |
1032 |
michael |
5052 |
} |
1033 |
|
|
|
1034 |
|
|
/* m_kill |
1035 |
|
|
* |
1036 |
|
|
* parv[0] = source |
1037 |
|
|
* parv[1] = numeric |
1038 |
michael |
5069 |
* parv[2] = target (hopm) |
1039 |
michael |
5052 |
* parv[3] = channel |
1040 |
|
|
* parv[4] = error text |
1041 |
|
|
* |
1042 |
|
|
*/ |
1043 |
michael |
5114 |
static void |
1044 |
|
|
m_kill(char **parv, unsigned int parc, char *msg, struct UserInfo *source_p) |
1045 |
michael |
5052 |
{ |
1046 |
michael |
5084 |
/* Restart hopm to rehash */ |
1047 |
|
|
main_restart(); |
1048 |
michael |
5052 |
} |