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michael |
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/* vim: set shiftwidth=3 softtabstop=3 expandtab: */ |
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/* |
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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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#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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RCSID("$Id: irc.c,v 1.27 2003/11/29 19:56:19 strtok Exp $"); |
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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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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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char IRC_CHANNELS[MSGLENMAX]; /* Stores comma delim list of channels */ |
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int IRC_RAW_LEN = 0; /* Position of IRC_RAW */ |
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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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/* Table should be ordered with most occuring (or priority) |
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commands at the top of the list. */ |
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static struct CommandHash COMMAND_TABLE[] = { |
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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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}; |
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/* irc_cycle |
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* |
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* Pass control to the IRC portion of BOPM to handle any awaiting IRC events. |
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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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*/ |
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void irc_cycle(void) |
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{ |
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if (IRC_FD <= 0) |
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{ |
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/* Initialise negative cache. */ |
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if (OptionsItem->negcache > 0) |
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nc_init(&nc_head); |
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/* Resolve remote host. */ |
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irc_init(); |
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/* Connect to remote host. */ |
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irc_connect(); |
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return; /* In case connect() immediately failed */ |
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} |
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IRC_TIMEOUT.tv_sec = 0; |
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/* Block .025 seconds to avoid excessive CPU use on select(). */ |
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IRC_TIMEOUT.tv_usec = 25000; |
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FD_ZERO(&IRC_READ_FDSET); |
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FD_SET(IRC_FD, &IRC_READ_FDSET); |
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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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break; |
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} |
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} |
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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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*/ |
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static void irc_init(void) |
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{ |
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node_t *node; |
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struct ChannelConf *chan; |
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struct bopm_sockaddr bsaddr; |
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struct in_addr *irc_host; |
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if (IRC_FD) |
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close(IRC_FD); |
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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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/* 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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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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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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} |
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/* Request file desc for IRC client socket */ |
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IRC_FD = socket(AF_INET, SOCK_STREAM, 0); |
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if (IRC_FD == -1) |
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{ |
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switch(errno) |
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{ |
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case EINVAL: |
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case EPROTONOSUPPORT: |
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log_printf("IRC -> socket(): SOCK_STREAM is not " |
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"supported on this domain"); |
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break; |
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case ENFILE: |
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log_printf("IRC -> socket(): Not enough free file " |
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"descriptors to allocate IRC socket"); |
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break; |
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case EMFILE: |
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log_printf("IRC -> socket(): Process table overflow when " |
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"requesting file descriptor"); |
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break; |
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case EACCES: |
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log_printf("IRC -> socket(): Permission denied to create " |
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"socket of type SOCK_STREAM"); |
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break; |
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case ENOMEM: |
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log_printf("IRC -> socket(): Insufficient memory to " |
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"allocate socket"); |
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break; |
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default: |
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log_printf("IRC -> socket(): Unknown error allocating " |
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"socket"); |
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break; |
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} |
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exit(EXIT_FAILURE); |
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} |
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/* Bind */ |
275 |
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if (strlen(IRCItem->vhost) > 0) |
276 |
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{ |
277 |
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int bindret = 0; |
278 |
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if (!inet_pton(AF_INET, IRCItem->vhost, &(IRC_LOCAL.in4.s_addr))) |
279 |
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{ |
280 |
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log_printf("IRC -> bind(): %s is an invalid address", IRCItem->vhost); |
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exit(EXIT_FAILURE); |
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} |
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bsaddr.sa4.sin_addr.s_addr = IRC_LOCAL.in4.s_addr; |
284 |
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bsaddr.sa4.sin_family = AF_INET; |
285 |
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bsaddr.sa4.sin_port = htons(0); |
286 |
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287 |
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bindret = bind(IRC_FD, (struct sockaddr *) &(bsaddr.sa4), sizeof(bsaddr.sa4)); |
288 |
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289 |
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if (bindret) |
290 |
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{ |
291 |
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switch(errno) |
292 |
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{ |
293 |
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case EACCES: |
294 |
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log_printf("IRC -> bind(): No access to bind to %s", |
295 |
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IRCItem->vhost); |
296 |
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break; |
297 |
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default: |
298 |
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log_printf("IRC -> bind(): Error binding to %s (%d)", |
299 |
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IRCItem->vhost, errno); |
300 |
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break; |
301 |
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} |
302 |
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exit(EXIT_FAILURE); |
303 |
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} |
304 |
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305 |
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} |
306 |
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307 |
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/* Setup target list for irc_send_channels */ |
308 |
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IRC_CHANNELS[0] = '\0'; |
309 |
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LIST_FOREACH(node, IRCItem->channels->head) |
310 |
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{ |
311 |
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chan = (struct ChannelConf *) node->data; |
312 |
michael |
5064 |
strlcat(IRC_CHANNELS, chan->name, sizeof(IRC_CHANNELS)); |
313 |
michael |
5052 |
|
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if(node->next) |
315 |
michael |
5064 |
strlcat(IRC_CHANNELS, ",", sizeof(IRC_CHANNELS)); |
316 |
michael |
5052 |
} |
317 |
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} |
318 |
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319 |
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320 |
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/* irc_send |
321 |
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* |
322 |
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* Send data to remote IRC host. |
323 |
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* |
324 |
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* Parameters: |
325 |
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* data: Format of data to send |
326 |
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* ...: varargs to format with |
327 |
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* |
328 |
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* Return: NONE |
329 |
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*/ |
330 |
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331 |
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332 |
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void irc_send(char *data, ...) |
333 |
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{ |
334 |
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va_list arglist; |
335 |
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char data2[MSGLENMAX]; |
336 |
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char tosend[MSGLENMAX]; |
337 |
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338 |
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va_start(arglist, data); |
339 |
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vsnprintf(data2, MSGLENMAX, data, arglist); |
340 |
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va_end(arglist); |
341 |
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342 |
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if (OPT_DEBUG >= 2) |
343 |
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log_printf("IRC SEND -> %s", data2); |
344 |
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345 |
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snprintf(tosend, MSGLENMAX, "%s\n", data2); |
346 |
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347 |
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if (send(IRC_FD, tosend, strlen(tosend), 0) == -1) |
348 |
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{ |
349 |
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/* Return of -1 indicates error sending data; we reconnect. */ |
350 |
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log_printf("IRC -> Error sending data to server\n"); |
351 |
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irc_reconnect(); |
352 |
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} |
353 |
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} |
354 |
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355 |
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/* irc_send |
356 |
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* |
357 |
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* Send privmsg to all channels. |
358 |
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* |
359 |
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* Parameters: |
360 |
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* data: Format of data to send |
361 |
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* ...: varargs to format with |
362 |
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* |
363 |
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* Return: NONE |
364 |
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*/ |
365 |
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366 |
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void irc_send_channels(char *data, ...) |
367 |
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{ |
368 |
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va_list arglist; |
369 |
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char data2[MSGLENMAX]; |
370 |
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char tosend[MSGLENMAX]; |
371 |
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372 |
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va_start(arglist, data); |
373 |
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vsnprintf(data2, MSGLENMAX, data, arglist); |
374 |
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va_end(arglist); |
375 |
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376 |
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snprintf(tosend, MSGLENMAX, "PRIVMSG %s :%s", IRC_CHANNELS, data2); |
377 |
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378 |
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irc_send("%s", tosend); |
379 |
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} |
380 |
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381 |
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382 |
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383 |
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384 |
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/* irc_connect |
385 |
|
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* |
386 |
|
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* Connect to IRC server. |
387 |
|
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* XXX: FD allocation done here |
388 |
|
|
* |
389 |
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* Parameters: NONE |
390 |
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* Return: NONE |
391 |
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* |
392 |
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*/ |
393 |
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|
394 |
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static void irc_connect(void) |
395 |
|
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{ |
396 |
|
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/* Connect to IRC server as client. */ |
397 |
|
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if (connect(IRC_FD, (struct sockaddr *) &IRC_SVR, |
398 |
|
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sizeof(IRC_SVR)) == -1) |
399 |
|
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{ |
400 |
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switch(errno) |
401 |
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{ |
402 |
|
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case EISCONN: |
403 |
|
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/* Already connected */ |
404 |
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return; |
405 |
|
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case ECONNREFUSED: |
406 |
|
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log_printf("IRC -> connect(): Connection refused by (%s)", |
407 |
|
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IRCItem->server); |
408 |
|
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break; |
409 |
|
|
case ETIMEDOUT: |
410 |
|
|
log_printf("IRC -> connect(): Timed out connecting to (%s)", |
411 |
|
|
IRCItem->server); |
412 |
|
|
break; |
413 |
|
|
case ENETUNREACH: |
414 |
|
|
log_printf("IRC -> connect(): Network unreachable"); |
415 |
|
|
break; |
416 |
|
|
case EALREADY: |
417 |
|
|
/* Previous attempt not complete */ |
418 |
|
|
return; |
419 |
|
|
default: |
420 |
|
|
log_printf("IRC -> connect(): Unknown error connecting to (%s)", |
421 |
|
|
IRCItem->server); |
422 |
|
|
|
423 |
|
|
if (OPT_DEBUG >= 1) |
424 |
|
|
log_printf("%s", strerror(errno)); |
425 |
|
|
} |
426 |
|
|
/* Try to connect again */ |
427 |
|
|
irc_reconnect(); |
428 |
|
|
return; |
429 |
|
|
} |
430 |
|
|
|
431 |
|
|
irc_send("NICK %s", IRCItem->nick); |
432 |
|
|
|
433 |
|
|
if(strlen(IRCItem->password) > 0) |
434 |
|
|
irc_send("PASS %s", IRCItem->password); |
435 |
|
|
|
436 |
|
|
irc_send("USER %s %s %s :%s", |
437 |
|
|
IRCItem->username, IRCItem->username, IRCItem->username, |
438 |
|
|
IRCItem->realname); |
439 |
|
|
|
440 |
|
|
time(&IRC_LAST); |
441 |
|
|
} |
442 |
|
|
|
443 |
|
|
|
444 |
|
|
/* irc_reconnect |
445 |
|
|
* |
446 |
|
|
* Close connection to IRC server. |
447 |
|
|
* |
448 |
|
|
* Parameters: NONE |
449 |
|
|
* |
450 |
|
|
* Return: NONE |
451 |
|
|
*/ |
452 |
|
|
|
453 |
|
|
static void irc_reconnect(void) |
454 |
|
|
{ |
455 |
|
|
|
456 |
|
|
time_t present; |
457 |
|
|
|
458 |
|
|
time(&present); |
459 |
|
|
|
460 |
|
|
/* Only try to reconnect every RECONNECT_INTERVAL seconds */ |
461 |
|
|
if((present - IRC_LASTRECONNECT) < RECONNECTINTERVAL) |
462 |
|
|
{ |
463 |
|
|
/* Sleep to avoid excessive CPU */ |
464 |
|
|
sleep(1); |
465 |
|
|
return; |
466 |
|
|
} |
467 |
|
|
|
468 |
|
|
time(&IRC_LASTRECONNECT); |
469 |
|
|
|
470 |
|
|
if(IRC_FD > 0) |
471 |
|
|
close(IRC_FD); |
472 |
|
|
|
473 |
|
|
/* Set IRC_FD 0 for reconnection on next irc_cycle(). */ |
474 |
|
|
IRC_FD = 0; |
475 |
|
|
|
476 |
|
|
log_printf("IRC -> Connection to (%s) failed, reconnecting.", IRCItem->server); |
477 |
|
|
} |
478 |
|
|
|
479 |
|
|
|
480 |
|
|
|
481 |
|
|
/* irc_read |
482 |
|
|
* |
483 |
|
|
* irc_read is called my irc_cycle when new data is ready to be |
484 |
|
|
* read from the irc server. |
485 |
|
|
* |
486 |
|
|
* Parameters: NONE |
487 |
|
|
* Return: NONE |
488 |
|
|
* |
489 |
|
|
*/ |
490 |
|
|
|
491 |
|
|
static void irc_read(void) |
492 |
|
|
{ |
493 |
|
|
int len; |
494 |
|
|
char c; |
495 |
|
|
|
496 |
|
|
while ((len = read(IRC_FD, &c, 1)) > 0) |
497 |
|
|
{ |
498 |
|
|
if (c == '\r') |
499 |
|
|
continue; |
500 |
|
|
|
501 |
|
|
if (c == '\n') |
502 |
|
|
{ |
503 |
|
|
/* Null string. */ |
504 |
|
|
IRC_RAW[IRC_RAW_LEN] = '\0'; |
505 |
|
|
/* Parse line. */ |
506 |
|
|
irc_parse(); |
507 |
|
|
/* Reset counter. */ |
508 |
|
|
IRC_RAW_LEN = 0; |
509 |
|
|
break; |
510 |
|
|
} |
511 |
|
|
|
512 |
|
|
if (c != '\r' && c != '\n' && c != '\0') |
513 |
|
|
IRC_RAW[IRC_RAW_LEN++] = c; |
514 |
|
|
} |
515 |
|
|
|
516 |
|
|
if((len <= 0) && (errno != EAGAIN)) |
517 |
|
|
{ |
518 |
|
|
if(OPT_DEBUG >= 2) |
519 |
|
|
log_printf("irc_read -> errno=%d len=%d", errno, len); |
520 |
|
|
irc_reconnect(); |
521 |
|
|
IRC_RAW_LEN = 0; |
522 |
|
|
return; |
523 |
|
|
} |
524 |
|
|
} |
525 |
|
|
|
526 |
|
|
|
527 |
|
|
/* irc_parse |
528 |
|
|
* |
529 |
|
|
* irc_parse is called by irc_read when a full line of data |
530 |
|
|
* is ready to be parsed. |
531 |
|
|
* |
532 |
|
|
* Parameters: NONE |
533 |
|
|
* Return: NONE |
534 |
|
|
* |
535 |
|
|
*/ |
536 |
|
|
|
537 |
|
|
|
538 |
|
|
static void irc_parse(void) |
539 |
|
|
{ |
540 |
|
|
struct UserInfo *source_p; |
541 |
|
|
char *pos; |
542 |
|
|
unsigned int i; |
543 |
|
|
|
544 |
|
|
/* |
545 |
|
|
parv stores the parsed token, parc is the count of the parsed |
546 |
|
|
tokens |
547 |
|
|
|
548 |
|
|
parv[0] is ALWAYS the source, and is the server name of the source |
549 |
|
|
did not exist |
550 |
|
|
*/ |
551 |
|
|
|
552 |
|
|
static char *parv[17]; |
553 |
|
|
static unsigned int parc; |
554 |
|
|
static char msg[MSGLENMAX]; /* Temporarily stores IRC msg to pass to handlers */ |
555 |
|
|
|
556 |
|
|
parc = 1; |
557 |
|
|
|
558 |
|
|
if(IRC_RAW_LEN <= 0) |
559 |
|
|
return; |
560 |
|
|
|
561 |
|
|
if (OPT_DEBUG >= 2) |
562 |
|
|
log_printf("IRC READ -> %s", IRC_RAW); |
563 |
|
|
|
564 |
|
|
time(&IRC_LAST); |
565 |
|
|
|
566 |
|
|
/* Store a copy of IRC_RAW for the handlers (for functions that need PROOF) */ |
567 |
michael |
5066 |
strlcpy(msg, IRC_RAW, sizeof(msg)); |
568 |
michael |
5052 |
|
569 |
|
|
/* parv[0] is always the source */ |
570 |
|
|
if(IRC_RAW[0] == ':') |
571 |
|
|
parv[0] = IRC_RAW + 1; |
572 |
|
|
else |
573 |
|
|
{ |
574 |
|
|
parv[0] = IRCItem->server; |
575 |
|
|
parv[parc++] = IRC_RAW; |
576 |
|
|
} |
577 |
|
|
|
578 |
|
|
pos = IRC_RAW; |
579 |
|
|
|
580 |
|
|
while((pos = strchr(pos, ' ')) && parc <= 17) |
581 |
|
|
{ |
582 |
|
|
|
583 |
|
|
/* Avoid excessive spaces and end of IRC_RAW */ |
584 |
|
|
if(*(pos + 1) == ' ' && *(pos + 1) == '\0') |
585 |
|
|
{ |
586 |
|
|
pos++; |
587 |
|
|
continue; |
588 |
|
|
} |
589 |
|
|
|
590 |
|
|
/* Anything after a : is considered the final string of the |
591 |
|
|
message */ |
592 |
|
|
if(*(pos + 1) == ':') |
593 |
|
|
{ |
594 |
|
|
parv[parc++] = pos + 2; |
595 |
|
|
*pos = '\0'; |
596 |
|
|
break; |
597 |
|
|
} |
598 |
|
|
|
599 |
|
|
/* Set the next parv at this position and replace the space with a |
600 |
|
|
\0 for the previous parv */ |
601 |
|
|
parv[parc++] = pos + 1; |
602 |
|
|
*pos = '\0'; |
603 |
|
|
pos++; |
604 |
|
|
} |
605 |
|
|
|
606 |
|
|
/* Generate a UserInfo struct from the source */ |
607 |
|
|
|
608 |
|
|
source_p = userinfo_create(parv[0]); |
609 |
|
|
|
610 |
|
|
/* Determine which command this is from the command table |
611 |
|
|
and let the handler for that command take control */ |
612 |
|
|
|
613 |
|
|
for(i = 0; i < (sizeof(COMMAND_TABLE) / sizeof(struct CommandHash)); i++) |
614 |
|
|
if(strcasecmp(COMMAND_TABLE[i].command, parv[1]) == 0) |
615 |
|
|
{ |
616 |
|
|
(*COMMAND_TABLE[i].handler)(parv, parc, msg, source_p); |
617 |
|
|
break; |
618 |
|
|
} |
619 |
|
|
|
620 |
|
|
userinfo_free(source_p); |
621 |
|
|
} |
622 |
|
|
|
623 |
|
|
|
624 |
|
|
|
625 |
|
|
|
626 |
|
|
/* irc_timer |
627 |
|
|
* |
628 |
|
|
* Functions to be performed every ~seconds. |
629 |
|
|
* |
630 |
|
|
* Parameters: NONE |
631 |
|
|
* Return: NONE |
632 |
|
|
* |
633 |
|
|
*/ |
634 |
|
|
|
635 |
|
|
void irc_timer(void) |
636 |
|
|
{ |
637 |
|
|
time_t present, delta; |
638 |
|
|
|
639 |
|
|
time(&present); |
640 |
|
|
|
641 |
|
|
delta = present - IRC_LAST; |
642 |
|
|
|
643 |
|
|
/* No data in NODATA_TIMEOUT minutes (set in options.h). */ |
644 |
|
|
if (delta >= NODATA_TIMEOUT) |
645 |
|
|
{ |
646 |
|
|
log_printf("IRC -> Timeout awaiting data from server."); |
647 |
|
|
irc_reconnect(); |
648 |
|
|
/* Make sure we dont do this again for a while */ |
649 |
|
|
time(&IRC_LAST); |
650 |
|
|
} |
651 |
|
|
else if (delta >= NODATA_TIMEOUT / 2) |
652 |
|
|
{ |
653 |
|
|
/* |
654 |
|
|
* Generate some data so high ping times or bugs in certain |
655 |
|
|
* ircds (*cough* unreal *cough*) don't cause uneeded |
656 |
|
|
* reconnections |
657 |
|
|
*/ |
658 |
|
|
irc_send("PING :BOPM"); |
659 |
|
|
} |
660 |
|
|
|
661 |
|
|
} |
662 |
|
|
|
663 |
|
|
|
664 |
|
|
|
665 |
|
|
|
666 |
|
|
/* get_channel |
667 |
|
|
* |
668 |
|
|
* Check if a channel is defined in our conf. If so return |
669 |
|
|
* a pointer to it. |
670 |
|
|
* |
671 |
|
|
* Parameters: |
672 |
|
|
* channel: channel to search conf for |
673 |
|
|
* |
674 |
|
|
* Return: Pointer to ChannelConf containing the channel |
675 |
|
|
*/ |
676 |
|
|
|
677 |
|
|
static struct ChannelConf *get_channel(const char *channel) |
678 |
|
|
{ |
679 |
|
|
node_t *node; |
680 |
|
|
struct ChannelConf *item; |
681 |
|
|
|
682 |
|
|
LIST_FOREACH(node, IRCItem->channels->head) |
683 |
|
|
{ |
684 |
|
|
item = node->data; |
685 |
|
|
|
686 |
|
|
if(strcasecmp(item->name, channel) == 0) |
687 |
|
|
return item; |
688 |
|
|
} |
689 |
|
|
|
690 |
|
|
return NULL; |
691 |
|
|
} |
692 |
|
|
|
693 |
|
|
|
694 |
|
|
/* userinfo_create |
695 |
|
|
* |
696 |
|
|
* Parse a nick!user@host into a UserInfo struct |
697 |
|
|
* and return a pointer to the new struct. |
698 |
|
|
* |
699 |
|
|
* Parameters: |
700 |
|
|
* source: nick!user@host to parse |
701 |
|
|
* |
702 |
|
|
* Return: |
703 |
|
|
* pointer to new UserInfo struct, or NULL if parsing failed |
704 |
|
|
* |
705 |
|
|
*/ |
706 |
|
|
|
707 |
|
|
static struct UserInfo *userinfo_create(char *source) |
708 |
|
|
{ |
709 |
|
|
struct UserInfo *ret; |
710 |
|
|
|
711 |
|
|
char *nick; |
712 |
|
|
char *username; |
713 |
|
|
char *hostname; |
714 |
|
|
char *tmp; |
715 |
|
|
|
716 |
|
|
int i, len; |
717 |
|
|
|
718 |
|
|
nick = username = hostname = NULL; |
719 |
|
|
tmp = DupString(source); |
720 |
|
|
len = strlen(tmp); |
721 |
|
|
|
722 |
|
|
nick = tmp; |
723 |
|
|
|
724 |
|
|
for(i = 0; i < len; i++) |
725 |
|
|
{ |
726 |
|
|
if(tmp[i] == '!') |
727 |
|
|
{ |
728 |
|
|
tmp[i] = '\0'; |
729 |
|
|
username = tmp + i + 1; |
730 |
|
|
} |
731 |
|
|
if(tmp[i] == '@') |
732 |
|
|
{ |
733 |
|
|
tmp[i] = '\0'; |
734 |
|
|
hostname = tmp + i + 1; |
735 |
|
|
} |
736 |
|
|
} |
737 |
|
|
|
738 |
|
|
if(nick == NULL || username == NULL || hostname == NULL) |
739 |
|
|
{ |
740 |
|
|
MyFree(tmp); |
741 |
|
|
return NULL; |
742 |
|
|
} |
743 |
|
|
|
744 |
|
|
ret = MyMalloc(sizeof *ret); |
745 |
|
|
|
746 |
|
|
ret->irc_nick = DupString(nick); |
747 |
|
|
ret->irc_username = DupString(username); |
748 |
|
|
ret->irc_hostname = DupString(hostname); |
749 |
|
|
|
750 |
|
|
MyFree(tmp); |
751 |
|
|
|
752 |
|
|
return ret; |
753 |
|
|
}; |
754 |
|
|
|
755 |
|
|
|
756 |
|
|
|
757 |
|
|
/* userinfo_free |
758 |
|
|
* |
759 |
|
|
* Free a UserInfo struct created with userinfo_create. |
760 |
|
|
* |
761 |
|
|
* Parameters: |
762 |
|
|
* source: struct to free |
763 |
|
|
* |
764 |
|
|
* Return: None |
765 |
|
|
* |
766 |
|
|
*/ |
767 |
|
|
|
768 |
|
|
static void userinfo_free(struct UserInfo *source_p) |
769 |
|
|
{ |
770 |
|
|
if(source_p == NULL) |
771 |
|
|
return; |
772 |
|
|
|
773 |
|
|
MyFree(source_p->irc_nick); |
774 |
|
|
MyFree(source_p->irc_username); |
775 |
|
|
MyFree(source_p->irc_hostname); |
776 |
|
|
MyFree(source_p); |
777 |
|
|
} |
778 |
|
|
|
779 |
|
|
|
780 |
|
|
|
781 |
|
|
/* m_perform |
782 |
|
|
* |
783 |
|
|
* actions to perform on IRC connection |
784 |
|
|
* |
785 |
|
|
* Parameters: |
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 |
|
|
|
794 |
|
|
static void m_perform(char **parv, unsigned int parc, char *msg, struct UserInfo *notused) |
795 |
|
|
{ |
796 |
|
|
node_t *node; |
797 |
|
|
struct ChannelConf *channel; |
798 |
|
|
|
799 |
|
|
USE_VAR(parv); |
800 |
|
|
USE_VAR(parc); |
801 |
|
|
USE_VAR(msg); |
802 |
|
|
USE_VAR(notused); |
803 |
|
|
|
804 |
|
|
log_printf("IRC -> Connected to %s:%d", IRCItem->server, IRCItem->port); |
805 |
|
|
|
806 |
|
|
/* Identify to nickserv if needed */ |
807 |
|
|
if(strlen(IRCItem->nickserv)) |
808 |
|
|
irc_send("%s", IRCItem->nickserv); |
809 |
|
|
|
810 |
|
|
/* Oper */ |
811 |
|
|
irc_send("OPER %s", IRCItem->oper); |
812 |
|
|
|
813 |
|
|
/* Set modes */ |
814 |
|
|
irc_send("MODE %s %s", IRCItem->nick, IRCItem->mode); |
815 |
|
|
|
816 |
|
|
/* Set Away */ |
817 |
|
|
irc_send("AWAY :%s", IRCItem->away); |
818 |
|
|
|
819 |
|
|
/* Perform */ |
820 |
|
|
LIST_FOREACH(node, IRCItem->performs->head) |
821 |
|
|
irc_send("%s", (char *) node->data); |
822 |
|
|
|
823 |
|
|
/* Join all listed channels. */ |
824 |
|
|
LIST_FOREACH(node, IRCItem->channels->head) |
825 |
|
|
{ |
826 |
|
|
channel = (struct ChannelConf *) node->data; |
827 |
|
|
|
828 |
|
|
if(strlen(channel->name) == 0) |
829 |
|
|
continue; |
830 |
|
|
|
831 |
|
|
if(strlen(channel->key) > 0) |
832 |
|
|
irc_send("JOIN %s %s", channel->name, channel->key); |
833 |
|
|
else |
834 |
|
|
irc_send("JOIN %s", channel->name); |
835 |
|
|
} |
836 |
|
|
} |
837 |
|
|
|
838 |
|
|
|
839 |
|
|
/* m_ping |
840 |
|
|
* |
841 |
|
|
* parv[0] = source |
842 |
|
|
* parv[1] = PING |
843 |
|
|
* parv[2] = PING TS/Package |
844 |
|
|
* |
845 |
|
|
* source_p: UserInfo struct of the source user, or NULL if |
846 |
|
|
* the source (parv[0]) is a server. |
847 |
|
|
*/ |
848 |
|
|
static void m_ping(char **parv, unsigned int parc, char *msg, struct UserInfo *source_p) |
849 |
|
|
{ |
850 |
|
|
USE_VAR(msg); |
851 |
|
|
USE_VAR(source_p); |
852 |
|
|
|
853 |
|
|
if(parc < 3) |
854 |
|
|
return; |
855 |
|
|
|
856 |
|
|
if(OPT_DEBUG >= 2) |
857 |
|
|
log_printf("IRC -> PING? PONG!"); |
858 |
|
|
|
859 |
|
|
irc_send("PONG %s", parv[2]); |
860 |
|
|
} |
861 |
|
|
|
862 |
|
|
|
863 |
|
|
|
864 |
|
|
/* m_invite |
865 |
|
|
* |
866 |
|
|
* parv[0] = source |
867 |
|
|
* parv[1] = INVITE |
868 |
|
|
* parv[2] = target |
869 |
|
|
* parv[3] = channel |
870 |
|
|
* |
871 |
|
|
* source_p: UserInfo struct of the source user, or NULL if |
872 |
|
|
* the source (parv[0]) is a server. |
873 |
|
|
* |
874 |
|
|
*/ |
875 |
|
|
|
876 |
|
|
static void m_invite(char **parv, unsigned int parc, char *msg, struct UserInfo *source_p) |
877 |
|
|
{ |
878 |
|
|
struct ChannelConf *channel; |
879 |
|
|
|
880 |
|
|
USE_VAR(msg); |
881 |
|
|
USE_VAR(source_p); |
882 |
|
|
|
883 |
|
|
if(parc < 4) |
884 |
|
|
return; |
885 |
|
|
|
886 |
|
|
log_printf("IRC -> Invited to %s by %s", parv[3], parv[0]); |
887 |
|
|
|
888 |
|
|
if((channel = get_channel(parv[3])) == NULL) |
889 |
|
|
return; |
890 |
|
|
|
891 |
|
|
irc_send("JOIN %s %s", channel->name, channel->key); |
892 |
|
|
} |
893 |
|
|
|
894 |
|
|
|
895 |
|
|
|
896 |
|
|
|
897 |
|
|
/* m_privmsg |
898 |
|
|
* |
899 |
|
|
* parv[0] = source |
900 |
|
|
* parv[1] = PRIVMSG |
901 |
|
|
* parv[2] = target (channel or user) |
902 |
|
|
* parv[3] = message |
903 |
|
|
* |
904 |
|
|
* source_p: UserInfo struct of the source user, or NULL if |
905 |
|
|
* the source (parv[0]) is a server. |
906 |
|
|
* |
907 |
|
|
*/ |
908 |
|
|
|
909 |
|
|
static void m_privmsg(char **parv, unsigned int parc, char *msg, struct UserInfo *source_p) |
910 |
|
|
{ |
911 |
|
|
struct ChannelConf *channel; |
912 |
|
|
size_t nick_len; |
913 |
|
|
|
914 |
|
|
if(source_p == NULL) |
915 |
|
|
return; |
916 |
|
|
|
917 |
|
|
if(parc < 4) |
918 |
|
|
return; |
919 |
|
|
|
920 |
|
|
/* CTCP */ |
921 |
|
|
if(parv[3][0] == '\001') |
922 |
|
|
m_ctcp(parv, parc, msg, source_p); |
923 |
|
|
|
924 |
|
|
/* Only interested in privmsg to channels */ |
925 |
|
|
if(parv[2][0] != '#' && parv[2][0] != '&') |
926 |
|
|
return; |
927 |
|
|
|
928 |
|
|
/* Get a target */ |
929 |
|
|
if((channel = get_channel(parv[2])) == NULL) |
930 |
|
|
return; |
931 |
|
|
|
932 |
|
|
/* Find a suitable length to compare with */ |
933 |
|
|
nick_len = strcspn(parv[3], " :,"); |
934 |
|
|
if(nick_len < 3 && strlen(IRCItem->nick) >= 3) |
935 |
|
|
nick_len = 3; |
936 |
|
|
|
937 |
|
|
/* message is a command */ |
938 |
|
|
if(strncasecmp(parv[3], IRCItem->nick, nick_len) == 0 || |
939 |
|
|
strncasecmp(parv[3], "!all", 4) == 0) |
940 |
|
|
{ |
941 |
|
|
/* XXX command_parse will alter parv[3]. */ |
942 |
|
|
command_parse(parv[3], msg, channel, source_p); |
943 |
|
|
} |
944 |
|
|
} |
945 |
|
|
|
946 |
|
|
|
947 |
|
|
|
948 |
|
|
|
949 |
|
|
|
950 |
|
|
/* m_ctcp |
951 |
|
|
* parv[0] = source |
952 |
|
|
* parv[1] = PRIVMSG |
953 |
|
|
* parv[2] = target (channel or user) |
954 |
|
|
* parv[3] = message |
955 |
|
|
* |
956 |
|
|
* source_p: UserInfo struct of the source user, or NULL if |
957 |
|
|
* the source (parv[0]) is a server. |
958 |
|
|
* |
959 |
|
|
*/ |
960 |
|
|
|
961 |
|
|
static void m_ctcp(char **parv, unsigned int parc, char *msg, struct UserInfo *source_p) |
962 |
|
|
{ |
963 |
|
|
USE_VAR(parc); |
964 |
|
|
USE_VAR(msg); |
965 |
|
|
|
966 |
|
|
if(strncasecmp(parv[3], "\001VERSION\001", 9) == 0) |
967 |
|
|
{ |
968 |
|
|
irc_send("NOTICE %s :\001VERSION Blitzed Open Proxy Monitor %s\001", |
969 |
|
|
source_p->irc_nick, VERSION); |
970 |
|
|
} |
971 |
|
|
} |
972 |
|
|
|
973 |
|
|
|
974 |
|
|
|
975 |
|
|
|
976 |
|
|
|
977 |
|
|
/* m_notice |
978 |
|
|
* |
979 |
|
|
* parv[0] = source |
980 |
|
|
* parv[1] = NOTICE |
981 |
|
|
* parv[2] = target |
982 |
|
|
* parv[3] = message |
983 |
|
|
* |
984 |
|
|
* |
985 |
|
|
* source_p: UserInfo struct of the source user, or NULL if |
986 |
|
|
* the source (parv[0]) is a server. |
987 |
|
|
* |
988 |
|
|
*/ |
989 |
|
|
|
990 |
|
|
static void m_notice(char **parv, unsigned int parc, char *msg, struct UserInfo *source_p) |
991 |
|
|
{ |
992 |
|
|
|
993 |
|
|
|
994 |
|
|
static regex_t *preg = NULL; |
995 |
|
|
regmatch_t pmatch[5]; |
996 |
|
|
|
997 |
|
|
static char errmsg[256]; |
998 |
|
|
int errnum, i; |
999 |
|
|
|
1000 |
|
|
char *user[4]; |
1001 |
|
|
|
1002 |
|
|
if(parc < 4) |
1003 |
|
|
return; |
1004 |
|
|
|
1005 |
|
|
/* Not interested in notices from users */ |
1006 |
|
|
if(source_p != NULL) |
1007 |
|
|
return; |
1008 |
|
|
|
1009 |
|
|
/* Compile the regular expression if it has not been already */ |
1010 |
|
|
if(preg == NULL) |
1011 |
|
|
{ |
1012 |
|
|
preg = MyMalloc(sizeof *preg); |
1013 |
|
|
|
1014 |
|
|
if((errnum = regcomp(preg, IRCItem->connregex, REG_ICASE | REG_EXTENDED)) != 0) |
1015 |
|
|
{ |
1016 |
|
|
|
1017 |
|
|
regerror(errnum, preg, errmsg, 256); |
1018 |
|
|
log_printf("IRC REGEX -> Error when compiling regular expression"); |
1019 |
|
|
log_printf("IRC REGEX -> %s", errmsg); |
1020 |
|
|
|
1021 |
|
|
MyFree(preg); |
1022 |
|
|
preg = NULL; |
1023 |
|
|
return; |
1024 |
|
|
} |
1025 |
|
|
} |
1026 |
|
|
|
1027 |
|
|
/* Match the expression against the possible connection notice */ |
1028 |
|
|
if(regexec(preg, parv[3], 5, pmatch, 0) != 0) |
1029 |
|
|
return; |
1030 |
|
|
|
1031 |
|
|
if(OPT_DEBUG > 0) |
1032 |
|
|
log_printf("IRC REGEX -> Regular expression caught connection notice. Parsing."); |
1033 |
|
|
|
1034 |
|
|
if(pmatch[4].rm_so == -1) |
1035 |
|
|
{ |
1036 |
|
|
log_printf("IRC REGEX -> pmatch[4].rm_so is -1 while parsing??? Aborting."); |
1037 |
|
|
return; |
1038 |
|
|
} |
1039 |
|
|
|
1040 |
|
|
/* |
1041 |
|
|
Offsets for data in the connection notice: |
1042 |
|
|
|
1043 |
|
|
NICKNAME: pmatch[1].rm_so TO pmatch[1].rm_eo |
1044 |
|
|
USERNAME: pmatch[2].rm_so TO pmatch[2].rm_eo |
1045 |
|
|
HOSTNAME: pmatch[3].rm_so TO pmatch[3].rm_eo |
1046 |
|
|
IP : pmatch[4].rm_so TO pmatch[4].rm_eo |
1047 |
|
|
|
1048 |
|
|
*/ |
1049 |
|
|
|
1050 |
|
|
for(i = 0; i < 4; i++) |
1051 |
|
|
{ |
1052 |
|
|
user[i] = (parv[3] + pmatch[i + 1].rm_so); |
1053 |
|
|
*(parv[3] + pmatch[i + 1].rm_eo) = '\0'; |
1054 |
|
|
} |
1055 |
|
|
|
1056 |
|
|
if(OPT_DEBUG > 0) |
1057 |
|
|
log_printf("IRC REGEX -> Parsed %s!%s@%s [%s] from connection notice.", |
1058 |
|
|
user[0], user[1], user[2], user[3]); |
1059 |
|
|
|
1060 |
|
|
/*FIXME (reminder) In the case of any rehash to the regex, preg MUST be freed first. |
1061 |
|
|
regfree(preg); |
1062 |
|
|
*/ |
1063 |
|
|
|
1064 |
|
|
/* Pass this information off to scan.c */ |
1065 |
|
|
scan_connect(user, msg); |
1066 |
|
|
/* Record the connect for stats purposes */ |
1067 |
|
|
stats_connect(); |
1068 |
|
|
} |
1069 |
|
|
|
1070 |
|
|
/* m_userhost |
1071 |
|
|
* |
1072 |
|
|
* parv[0] = source |
1073 |
|
|
* parv[1] = USERHOST |
1074 |
|
|
* parv[2] = target (bopm) |
1075 |
|
|
* parv[3] = :nick=(flags)user@host |
1076 |
|
|
* |
1077 |
|
|
* |
1078 |
|
|
* source_p: UserInfo struct of the source user, or NULL if |
1079 |
|
|
* the source (parv[0]) is a server. |
1080 |
|
|
* |
1081 |
|
|
*/ |
1082 |
|
|
|
1083 |
|
|
static void m_userhost(char **parv, unsigned int parc, char *msg, |
1084 |
|
|
struct UserInfo *source_p) |
1085 |
|
|
{ |
1086 |
|
|
USE_VAR(msg); |
1087 |
|
|
USE_VAR(source_p); |
1088 |
|
|
|
1089 |
|
|
if(parc < 4) |
1090 |
|
|
return; |
1091 |
|
|
|
1092 |
|
|
command_userhost(parv[3]); |
1093 |
|
|
} |
1094 |
|
|
|
1095 |
|
|
/* m_cannot_join |
1096 |
|
|
* |
1097 |
|
|
* parv[0] = source |
1098 |
|
|
* parv[1] = numeric |
1099 |
|
|
* parv[2] = target (bopm) |
1100 |
|
|
* parv[3] = channel |
1101 |
|
|
* parv[4] = error text |
1102 |
|
|
* |
1103 |
|
|
*/ |
1104 |
|
|
|
1105 |
|
|
static void m_cannot_join(char **parv, unsigned int parc, char *msg, |
1106 |
|
|
struct UserInfo *source_p) |
1107 |
|
|
{ |
1108 |
|
|
struct ChannelConf *channel; |
1109 |
|
|
|
1110 |
|
|
USE_VAR(msg); |
1111 |
|
|
USE_VAR(source_p); |
1112 |
|
|
|
1113 |
|
|
if(parc < 5) |
1114 |
|
|
return; |
1115 |
|
|
|
1116 |
|
|
/* Is it one of our channels? */ |
1117 |
|
|
if((channel = get_channel(parv[3])) == NULL) |
1118 |
|
|
return; |
1119 |
|
|
|
1120 |
|
|
if(strlen(channel->invite) == 0) |
1121 |
|
|
return; |
1122 |
|
|
|
1123 |
|
|
irc_send("%s", channel->invite); |
1124 |
|
|
} |
1125 |
|
|
|
1126 |
|
|
|
1127 |
|
|
/* m_kill |
1128 |
|
|
* |
1129 |
|
|
* parv[0] = source |
1130 |
|
|
* parv[1] = numeric |
1131 |
|
|
* parv[2] = target (bopm) |
1132 |
|
|
* parv[3] = channel |
1133 |
|
|
* parv[4] = error text |
1134 |
|
|
* |
1135 |
|
|
*/ |
1136 |
|
|
|
1137 |
|
|
static void m_kill(char **parv, unsigned int parc, char *msg, struct UserInfo *source_p) |
1138 |
|
|
{ |
1139 |
|
|
USE_VAR(parv); |
1140 |
|
|
USE_VAR(parc); |
1141 |
|
|
USE_VAR(msg); |
1142 |
|
|
USE_VAR(source_p); |
1143 |
|
|
|
1144 |
|
|
/* Restart bopm to rehash */ |
1145 |
|
|
main_restart(); |
1146 |
|
|
} |