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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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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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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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* |
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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(); |
159 |
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160 |
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/* Connect to remote host. */ |
161 |
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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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273 |
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/* Bind */ |
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michael |
5077 |
if (!EmptyString(IRCItem->vhost)) |
275 |
michael |
5052 |
{ |
276 |
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int bindret = 0; |
277 |
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if (!inet_pton(AF_INET, IRCItem->vhost, &(IRC_LOCAL.in4.s_addr))) |
278 |
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{ |
279 |
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log_printf("IRC -> bind(): %s is an invalid address", IRCItem->vhost); |
280 |
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exit(EXIT_FAILURE); |
281 |
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} |
282 |
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bsaddr.sa4.sin_addr.s_addr = IRC_LOCAL.in4.s_addr; |
283 |
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bsaddr.sa4.sin_family = AF_INET; |
284 |
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bsaddr.sa4.sin_port = htons(0); |
285 |
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286 |
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bindret = bind(IRC_FD, (struct sockaddr *) &(bsaddr.sa4), sizeof(bsaddr.sa4)); |
287 |
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288 |
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if (bindret) |
289 |
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{ |
290 |
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switch(errno) |
291 |
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{ |
292 |
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case EACCES: |
293 |
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log_printf("IRC -> bind(): No access to bind to %s", |
294 |
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IRCItem->vhost); |
295 |
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break; |
296 |
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default: |
297 |
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log_printf("IRC -> bind(): Error binding to %s (%d)", |
298 |
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IRCItem->vhost, errno); |
299 |
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break; |
300 |
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} |
301 |
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exit(EXIT_FAILURE); |
302 |
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} |
303 |
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304 |
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} |
305 |
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306 |
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/* Setup target list for irc_send_channels */ |
307 |
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IRC_CHANNELS[0] = '\0'; |
308 |
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LIST_FOREACH(node, IRCItem->channels->head) |
309 |
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{ |
310 |
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chan = (struct ChannelConf *) node->data; |
311 |
michael |
5064 |
strlcat(IRC_CHANNELS, chan->name, sizeof(IRC_CHANNELS)); |
312 |
michael |
5052 |
|
313 |
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if(node->next) |
314 |
michael |
5064 |
strlcat(IRC_CHANNELS, ",", sizeof(IRC_CHANNELS)); |
315 |
michael |
5052 |
} |
316 |
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} |
317 |
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318 |
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319 |
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/* irc_send |
320 |
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* |
321 |
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* Send data to remote IRC host. |
322 |
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* |
323 |
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* Parameters: |
324 |
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* data: Format of data to send |
325 |
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* ...: varargs to format with |
326 |
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* |
327 |
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* Return: NONE |
328 |
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*/ |
329 |
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330 |
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331 |
michael |
5072 |
void irc_send(const char *data, ...) |
332 |
michael |
5052 |
{ |
333 |
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va_list arglist; |
334 |
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char data2[MSGLENMAX]; |
335 |
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char tosend[MSGLENMAX]; |
336 |
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337 |
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va_start(arglist, data); |
338 |
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vsnprintf(data2, MSGLENMAX, data, arglist); |
339 |
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va_end(arglist); |
340 |
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341 |
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if (OPT_DEBUG >= 2) |
342 |
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log_printf("IRC SEND -> %s", data2); |
343 |
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344 |
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snprintf(tosend, MSGLENMAX, "%s\n", data2); |
345 |
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346 |
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if (send(IRC_FD, tosend, strlen(tosend), 0) == -1) |
347 |
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{ |
348 |
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/* Return of -1 indicates error sending data; we reconnect. */ |
349 |
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log_printf("IRC -> Error sending data to server\n"); |
350 |
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irc_reconnect(); |
351 |
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} |
352 |
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} |
353 |
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354 |
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/* irc_send |
355 |
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* |
356 |
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* Send privmsg to all channels. |
357 |
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* |
358 |
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* Parameters: |
359 |
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* data: Format of data to send |
360 |
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* ...: varargs to format with |
361 |
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* |
362 |
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* Return: NONE |
363 |
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*/ |
364 |
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|
365 |
michael |
5072 |
void irc_send_channels(const char *data, ...) |
366 |
michael |
5052 |
{ |
367 |
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va_list arglist; |
368 |
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char data2[MSGLENMAX]; |
369 |
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char tosend[MSGLENMAX]; |
370 |
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371 |
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va_start(arglist, data); |
372 |
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vsnprintf(data2, MSGLENMAX, data, arglist); |
373 |
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va_end(arglist); |
374 |
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375 |
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snprintf(tosend, MSGLENMAX, "PRIVMSG %s :%s", IRC_CHANNELS, data2); |
376 |
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377 |
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irc_send("%s", tosend); |
378 |
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} |
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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/* irc_connect |
384 |
|
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* |
385 |
|
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* Connect to IRC server. |
386 |
|
|
* XXX: FD allocation done here |
387 |
|
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* |
388 |
|
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* Parameters: NONE |
389 |
|
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* Return: NONE |
390 |
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* |
391 |
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*/ |
392 |
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|
393 |
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static void irc_connect(void) |
394 |
|
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{ |
395 |
|
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/* Connect to IRC server as client. */ |
396 |
|
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if (connect(IRC_FD, (struct sockaddr *) &IRC_SVR, |
397 |
|
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sizeof(IRC_SVR)) == -1) |
398 |
|
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{ |
399 |
|
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switch(errno) |
400 |
|
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{ |
401 |
|
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case EISCONN: |
402 |
|
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/* Already connected */ |
403 |
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return; |
404 |
|
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case ECONNREFUSED: |
405 |
|
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log_printf("IRC -> connect(): Connection refused by (%s)", |
406 |
|
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IRCItem->server); |
407 |
|
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break; |
408 |
|
|
case ETIMEDOUT: |
409 |
|
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log_printf("IRC -> connect(): Timed out connecting to (%s)", |
410 |
|
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IRCItem->server); |
411 |
|
|
break; |
412 |
|
|
case ENETUNREACH: |
413 |
|
|
log_printf("IRC -> connect(): Network unreachable"); |
414 |
|
|
break; |
415 |
|
|
case EALREADY: |
416 |
|
|
/* Previous attempt not complete */ |
417 |
|
|
return; |
418 |
|
|
default: |
419 |
|
|
log_printf("IRC -> connect(): Unknown error connecting to (%s)", |
420 |
|
|
IRCItem->server); |
421 |
|
|
|
422 |
|
|
if (OPT_DEBUG >= 1) |
423 |
|
|
log_printf("%s", strerror(errno)); |
424 |
|
|
} |
425 |
|
|
/* Try to connect again */ |
426 |
|
|
irc_reconnect(); |
427 |
|
|
return; |
428 |
|
|
} |
429 |
|
|
|
430 |
|
|
irc_send("NICK %s", IRCItem->nick); |
431 |
|
|
|
432 |
michael |
5077 |
if (!EmptyString(IRCItem->password)) |
433 |
michael |
5052 |
irc_send("PASS %s", IRCItem->password); |
434 |
|
|
|
435 |
|
|
irc_send("USER %s %s %s :%s", |
436 |
|
|
IRCItem->username, IRCItem->username, IRCItem->username, |
437 |
|
|
IRCItem->realname); |
438 |
|
|
|
439 |
|
|
time(&IRC_LAST); |
440 |
|
|
} |
441 |
|
|
|
442 |
|
|
|
443 |
|
|
/* irc_reconnect |
444 |
|
|
* |
445 |
|
|
* Close connection to IRC server. |
446 |
|
|
* |
447 |
|
|
* Parameters: NONE |
448 |
|
|
* |
449 |
|
|
* Return: NONE |
450 |
|
|
*/ |
451 |
|
|
|
452 |
|
|
static void irc_reconnect(void) |
453 |
|
|
{ |
454 |
|
|
|
455 |
|
|
time_t present; |
456 |
|
|
|
457 |
|
|
time(&present); |
458 |
|
|
|
459 |
|
|
/* Only try to reconnect every RECONNECT_INTERVAL seconds */ |
460 |
|
|
if((present - IRC_LASTRECONNECT) < RECONNECTINTERVAL) |
461 |
|
|
{ |
462 |
|
|
/* Sleep to avoid excessive CPU */ |
463 |
|
|
sleep(1); |
464 |
|
|
return; |
465 |
|
|
} |
466 |
|
|
|
467 |
|
|
time(&IRC_LASTRECONNECT); |
468 |
|
|
|
469 |
|
|
if(IRC_FD > 0) |
470 |
|
|
close(IRC_FD); |
471 |
|
|
|
472 |
|
|
/* Set IRC_FD 0 for reconnection on next irc_cycle(). */ |
473 |
|
|
IRC_FD = 0; |
474 |
|
|
|
475 |
|
|
log_printf("IRC -> Connection to (%s) failed, reconnecting.", IRCItem->server); |
476 |
|
|
} |
477 |
|
|
|
478 |
|
|
|
479 |
|
|
|
480 |
|
|
/* irc_read |
481 |
|
|
* |
482 |
|
|
* irc_read is called my irc_cycle when new data is ready to be |
483 |
|
|
* read from the irc server. |
484 |
|
|
* |
485 |
|
|
* Parameters: NONE |
486 |
|
|
* Return: NONE |
487 |
|
|
* |
488 |
|
|
*/ |
489 |
|
|
|
490 |
|
|
static void irc_read(void) |
491 |
|
|
{ |
492 |
|
|
int len; |
493 |
|
|
char c; |
494 |
|
|
|
495 |
|
|
while ((len = read(IRC_FD, &c, 1)) > 0) |
496 |
|
|
{ |
497 |
|
|
if (c == '\r') |
498 |
|
|
continue; |
499 |
|
|
|
500 |
|
|
if (c == '\n') |
501 |
|
|
{ |
502 |
|
|
/* Null string. */ |
503 |
|
|
IRC_RAW[IRC_RAW_LEN] = '\0'; |
504 |
|
|
/* Parse line. */ |
505 |
|
|
irc_parse(); |
506 |
|
|
/* Reset counter. */ |
507 |
|
|
IRC_RAW_LEN = 0; |
508 |
|
|
break; |
509 |
|
|
} |
510 |
|
|
|
511 |
|
|
if (c != '\r' && c != '\n' && c != '\0') |
512 |
|
|
IRC_RAW[IRC_RAW_LEN++] = c; |
513 |
|
|
} |
514 |
|
|
|
515 |
|
|
if((len <= 0) && (errno != EAGAIN)) |
516 |
|
|
{ |
517 |
|
|
if(OPT_DEBUG >= 2) |
518 |
|
|
log_printf("irc_read -> errno=%d len=%d", errno, len); |
519 |
|
|
irc_reconnect(); |
520 |
|
|
IRC_RAW_LEN = 0; |
521 |
|
|
return; |
522 |
|
|
} |
523 |
|
|
} |
524 |
|
|
|
525 |
|
|
|
526 |
|
|
/* irc_parse |
527 |
|
|
* |
528 |
|
|
* irc_parse is called by irc_read when a full line of data |
529 |
|
|
* is ready to be parsed. |
530 |
|
|
* |
531 |
|
|
* Parameters: NONE |
532 |
|
|
* Return: NONE |
533 |
|
|
* |
534 |
|
|
*/ |
535 |
|
|
|
536 |
|
|
|
537 |
|
|
static void irc_parse(void) |
538 |
|
|
{ |
539 |
|
|
struct UserInfo *source_p; |
540 |
|
|
char *pos; |
541 |
|
|
unsigned int i; |
542 |
|
|
|
543 |
|
|
/* |
544 |
|
|
parv stores the parsed token, parc is the count of the parsed |
545 |
|
|
tokens |
546 |
|
|
|
547 |
|
|
parv[0] is ALWAYS the source, and is the server name of the source |
548 |
|
|
did not exist |
549 |
|
|
*/ |
550 |
|
|
|
551 |
|
|
static char *parv[17]; |
552 |
|
|
static unsigned int parc; |
553 |
|
|
static char msg[MSGLENMAX]; /* Temporarily stores IRC msg to pass to handlers */ |
554 |
|
|
|
555 |
|
|
parc = 1; |
556 |
|
|
|
557 |
|
|
if(IRC_RAW_LEN <= 0) |
558 |
|
|
return; |
559 |
|
|
|
560 |
|
|
if (OPT_DEBUG >= 2) |
561 |
|
|
log_printf("IRC READ -> %s", IRC_RAW); |
562 |
|
|
|
563 |
|
|
time(&IRC_LAST); |
564 |
|
|
|
565 |
|
|
/* Store a copy of IRC_RAW for the handlers (for functions that need PROOF) */ |
566 |
michael |
5066 |
strlcpy(msg, IRC_RAW, sizeof(msg)); |
567 |
michael |
5052 |
|
568 |
|
|
/* parv[0] is always the source */ |
569 |
|
|
if(IRC_RAW[0] == ':') |
570 |
|
|
parv[0] = IRC_RAW + 1; |
571 |
|
|
else |
572 |
|
|
{ |
573 |
|
|
parv[0] = IRCItem->server; |
574 |
|
|
parv[parc++] = IRC_RAW; |
575 |
|
|
} |
576 |
|
|
|
577 |
|
|
pos = IRC_RAW; |
578 |
|
|
|
579 |
|
|
while((pos = strchr(pos, ' ')) && parc <= 17) |
580 |
|
|
{ |
581 |
|
|
|
582 |
|
|
/* Avoid excessive spaces and end of IRC_RAW */ |
583 |
|
|
if(*(pos + 1) == ' ' && *(pos + 1) == '\0') |
584 |
|
|
{ |
585 |
|
|
pos++; |
586 |
|
|
continue; |
587 |
|
|
} |
588 |
|
|
|
589 |
|
|
/* Anything after a : is considered the final string of the |
590 |
|
|
message */ |
591 |
|
|
if(*(pos + 1) == ':') |
592 |
|
|
{ |
593 |
|
|
parv[parc++] = pos + 2; |
594 |
|
|
*pos = '\0'; |
595 |
|
|
break; |
596 |
|
|
} |
597 |
|
|
|
598 |
|
|
/* Set the next parv at this position and replace the space with a |
599 |
|
|
\0 for the previous parv */ |
600 |
|
|
parv[parc++] = pos + 1; |
601 |
|
|
*pos = '\0'; |
602 |
|
|
pos++; |
603 |
|
|
} |
604 |
|
|
|
605 |
|
|
/* Generate a UserInfo struct from the source */ |
606 |
|
|
|
607 |
|
|
source_p = userinfo_create(parv[0]); |
608 |
|
|
|
609 |
|
|
/* Determine which command this is from the command table |
610 |
|
|
and let the handler for that command take control */ |
611 |
|
|
|
612 |
|
|
for(i = 0; i < (sizeof(COMMAND_TABLE) / sizeof(struct CommandHash)); i++) |
613 |
|
|
if(strcasecmp(COMMAND_TABLE[i].command, parv[1]) == 0) |
614 |
|
|
{ |
615 |
|
|
(*COMMAND_TABLE[i].handler)(parv, parc, msg, source_p); |
616 |
|
|
break; |
617 |
|
|
} |
618 |
|
|
|
619 |
|
|
userinfo_free(source_p); |
620 |
|
|
} |
621 |
|
|
|
622 |
|
|
|
623 |
|
|
|
624 |
|
|
|
625 |
|
|
/* irc_timer |
626 |
|
|
* |
627 |
|
|
* Functions to be performed every ~seconds. |
628 |
|
|
* |
629 |
|
|
* Parameters: NONE |
630 |
|
|
* Return: NONE |
631 |
|
|
* |
632 |
|
|
*/ |
633 |
|
|
|
634 |
|
|
void irc_timer(void) |
635 |
|
|
{ |
636 |
|
|
time_t present, delta; |
637 |
|
|
|
638 |
|
|
time(&present); |
639 |
|
|
|
640 |
|
|
delta = present - IRC_LAST; |
641 |
|
|
|
642 |
|
|
/* No data in NODATA_TIMEOUT minutes (set in options.h). */ |
643 |
|
|
if (delta >= NODATA_TIMEOUT) |
644 |
|
|
{ |
645 |
|
|
log_printf("IRC -> Timeout awaiting data from server."); |
646 |
|
|
irc_reconnect(); |
647 |
|
|
/* Make sure we dont do this again for a while */ |
648 |
|
|
time(&IRC_LAST); |
649 |
|
|
} |
650 |
|
|
else if (delta >= NODATA_TIMEOUT / 2) |
651 |
|
|
{ |
652 |
|
|
/* |
653 |
|
|
* Generate some data so high ping times or bugs in certain |
654 |
|
|
* ircds (*cough* unreal *cough*) don't cause uneeded |
655 |
|
|
* reconnections |
656 |
|
|
*/ |
657 |
michael |
5069 |
irc_send("PING :HOPM"); |
658 |
michael |
5052 |
} |
659 |
|
|
|
660 |
|
|
} |
661 |
|
|
|
662 |
|
|
|
663 |
|
|
|
664 |
|
|
|
665 |
|
|
/* get_channel |
666 |
|
|
* |
667 |
|
|
* Check if a channel is defined in our conf. If so return |
668 |
|
|
* a pointer to it. |
669 |
|
|
* |
670 |
|
|
* Parameters: |
671 |
|
|
* channel: channel to search conf for |
672 |
|
|
* |
673 |
|
|
* Return: Pointer to ChannelConf containing the channel |
674 |
|
|
*/ |
675 |
|
|
|
676 |
|
|
static struct ChannelConf *get_channel(const char *channel) |
677 |
|
|
{ |
678 |
|
|
node_t *node; |
679 |
|
|
struct ChannelConf *item; |
680 |
|
|
|
681 |
|
|
LIST_FOREACH(node, IRCItem->channels->head) |
682 |
|
|
{ |
683 |
|
|
item = node->data; |
684 |
|
|
|
685 |
|
|
if(strcasecmp(item->name, channel) == 0) |
686 |
|
|
return item; |
687 |
|
|
} |
688 |
|
|
|
689 |
|
|
return NULL; |
690 |
|
|
} |
691 |
|
|
|
692 |
|
|
|
693 |
|
|
/* userinfo_create |
694 |
|
|
* |
695 |
|
|
* Parse a nick!user@host into a UserInfo struct |
696 |
|
|
* and return a pointer to the new struct. |
697 |
|
|
* |
698 |
|
|
* Parameters: |
699 |
|
|
* source: nick!user@host to parse |
700 |
|
|
* |
701 |
|
|
* Return: |
702 |
|
|
* pointer to new UserInfo struct, or NULL if parsing failed |
703 |
|
|
* |
704 |
|
|
*/ |
705 |
|
|
|
706 |
|
|
static struct UserInfo *userinfo_create(char *source) |
707 |
|
|
{ |
708 |
|
|
struct UserInfo *ret; |
709 |
|
|
|
710 |
|
|
char *nick; |
711 |
|
|
char *username; |
712 |
|
|
char *hostname; |
713 |
|
|
char *tmp; |
714 |
|
|
|
715 |
|
|
int i, len; |
716 |
|
|
|
717 |
|
|
nick = username = hostname = NULL; |
718 |
|
|
tmp = DupString(source); |
719 |
|
|
len = strlen(tmp); |
720 |
|
|
|
721 |
|
|
nick = tmp; |
722 |
|
|
|
723 |
|
|
for(i = 0; i < len; i++) |
724 |
|
|
{ |
725 |
|
|
if(tmp[i] == '!') |
726 |
|
|
{ |
727 |
|
|
tmp[i] = '\0'; |
728 |
|
|
username = tmp + i + 1; |
729 |
|
|
} |
730 |
|
|
if(tmp[i] == '@') |
731 |
|
|
{ |
732 |
|
|
tmp[i] = '\0'; |
733 |
|
|
hostname = tmp + i + 1; |
734 |
|
|
} |
735 |
|
|
} |
736 |
|
|
|
737 |
|
|
if(nick == NULL || username == NULL || hostname == NULL) |
738 |
|
|
{ |
739 |
|
|
MyFree(tmp); |
740 |
|
|
return NULL; |
741 |
|
|
} |
742 |
|
|
|
743 |
|
|
ret = MyMalloc(sizeof *ret); |
744 |
|
|
|
745 |
|
|
ret->irc_nick = DupString(nick); |
746 |
|
|
ret->irc_username = DupString(username); |
747 |
|
|
ret->irc_hostname = DupString(hostname); |
748 |
|
|
|
749 |
|
|
MyFree(tmp); |
750 |
|
|
|
751 |
|
|
return ret; |
752 |
|
|
}; |
753 |
|
|
|
754 |
|
|
|
755 |
|
|
|
756 |
|
|
/* userinfo_free |
757 |
|
|
* |
758 |
|
|
* Free a UserInfo struct created with userinfo_create. |
759 |
|
|
* |
760 |
|
|
* Parameters: |
761 |
|
|
* source: struct to free |
762 |
|
|
* |
763 |
|
|
* Return: None |
764 |
|
|
* |
765 |
|
|
*/ |
766 |
|
|
|
767 |
|
|
static void userinfo_free(struct UserInfo *source_p) |
768 |
|
|
{ |
769 |
|
|
if(source_p == NULL) |
770 |
|
|
return; |
771 |
|
|
|
772 |
|
|
MyFree(source_p->irc_nick); |
773 |
|
|
MyFree(source_p->irc_username); |
774 |
|
|
MyFree(source_p->irc_hostname); |
775 |
|
|
MyFree(source_p); |
776 |
|
|
} |
777 |
|
|
|
778 |
|
|
|
779 |
|
|
|
780 |
|
|
/* m_perform |
781 |
|
|
* |
782 |
|
|
* actions to perform on IRC connection |
783 |
|
|
* |
784 |
|
|
* Parameters: |
785 |
|
|
* parv[0] = source |
786 |
|
|
* parv[1] = PING |
787 |
|
|
* parv[2] = PING TS/Package |
788 |
|
|
* |
789 |
|
|
* source_p: UserInfo struct of the source user, or NULL if |
790 |
|
|
* the source (parv[0]) is a server. |
791 |
|
|
*/ |
792 |
|
|
|
793 |
|
|
static void m_perform(char **parv, unsigned int parc, char *msg, struct UserInfo *notused) |
794 |
|
|
{ |
795 |
|
|
node_t *node; |
796 |
|
|
struct ChannelConf *channel; |
797 |
|
|
|
798 |
|
|
log_printf("IRC -> Connected to %s:%d", IRCItem->server, IRCItem->port); |
799 |
|
|
|
800 |
|
|
/* Identify to nickserv if needed */ |
801 |
michael |
5077 |
if (!EmptyString(IRCItem->nickserv)) |
802 |
michael |
5052 |
irc_send("%s", IRCItem->nickserv); |
803 |
|
|
|
804 |
|
|
/* Oper */ |
805 |
|
|
irc_send("OPER %s", IRCItem->oper); |
806 |
|
|
|
807 |
|
|
/* Set modes */ |
808 |
|
|
irc_send("MODE %s %s", IRCItem->nick, IRCItem->mode); |
809 |
|
|
|
810 |
|
|
/* Set Away */ |
811 |
michael |
5083 |
if (!EmptyString(IRCItem->away)) |
812 |
|
|
irc_send("AWAY :%s", IRCItem->away); |
813 |
michael |
5052 |
|
814 |
|
|
/* Perform */ |
815 |
|
|
LIST_FOREACH(node, IRCItem->performs->head) |
816 |
|
|
irc_send("%s", (char *) node->data); |
817 |
|
|
|
818 |
|
|
/* Join all listed channels. */ |
819 |
|
|
LIST_FOREACH(node, IRCItem->channels->head) |
820 |
|
|
{ |
821 |
|
|
channel = (struct ChannelConf *) node->data; |
822 |
|
|
|
823 |
michael |
5077 |
if (EmptyString(channel->name)) |
824 |
michael |
5052 |
continue; |
825 |
|
|
|
826 |
michael |
5077 |
if (!EmptyString(channel->key)) |
827 |
michael |
5052 |
irc_send("JOIN %s %s", channel->name, channel->key); |
828 |
|
|
else |
829 |
|
|
irc_send("JOIN %s", channel->name); |
830 |
|
|
} |
831 |
|
|
} |
832 |
|
|
|
833 |
|
|
|
834 |
|
|
/* m_ping |
835 |
|
|
* |
836 |
|
|
* parv[0] = source |
837 |
|
|
* parv[1] = PING |
838 |
|
|
* parv[2] = PING TS/Package |
839 |
|
|
* |
840 |
|
|
* source_p: UserInfo struct of the source user, or NULL if |
841 |
|
|
* the source (parv[0]) is a server. |
842 |
|
|
*/ |
843 |
|
|
static void m_ping(char **parv, unsigned int parc, char *msg, struct UserInfo *source_p) |
844 |
|
|
{ |
845 |
|
|
if(parc < 3) |
846 |
|
|
return; |
847 |
|
|
|
848 |
|
|
if(OPT_DEBUG >= 2) |
849 |
|
|
log_printf("IRC -> PING? PONG!"); |
850 |
|
|
|
851 |
|
|
irc_send("PONG %s", parv[2]); |
852 |
|
|
} |
853 |
|
|
|
854 |
|
|
|
855 |
|
|
|
856 |
|
|
/* m_invite |
857 |
|
|
* |
858 |
|
|
* parv[0] = source |
859 |
|
|
* parv[1] = INVITE |
860 |
|
|
* parv[2] = target |
861 |
|
|
* parv[3] = channel |
862 |
|
|
* |
863 |
|
|
* source_p: UserInfo struct of the source user, or NULL if |
864 |
|
|
* the source (parv[0]) is a server. |
865 |
|
|
* |
866 |
|
|
*/ |
867 |
|
|
|
868 |
|
|
static void m_invite(char **parv, unsigned int parc, char *msg, struct UserInfo *source_p) |
869 |
|
|
{ |
870 |
|
|
struct ChannelConf *channel; |
871 |
|
|
|
872 |
|
|
if(parc < 4) |
873 |
|
|
return; |
874 |
|
|
|
875 |
|
|
log_printf("IRC -> Invited to %s by %s", parv[3], parv[0]); |
876 |
|
|
|
877 |
|
|
if((channel = get_channel(parv[3])) == NULL) |
878 |
|
|
return; |
879 |
|
|
|
880 |
|
|
irc_send("JOIN %s %s", channel->name, channel->key); |
881 |
|
|
} |
882 |
|
|
|
883 |
|
|
|
884 |
|
|
|
885 |
|
|
|
886 |
|
|
/* m_privmsg |
887 |
|
|
* |
888 |
|
|
* parv[0] = source |
889 |
|
|
* parv[1] = PRIVMSG |
890 |
|
|
* parv[2] = target (channel or user) |
891 |
|
|
* parv[3] = message |
892 |
|
|
* |
893 |
|
|
* source_p: UserInfo struct of the source user, or NULL if |
894 |
|
|
* the source (parv[0]) is a server. |
895 |
|
|
* |
896 |
|
|
*/ |
897 |
|
|
|
898 |
|
|
static void m_privmsg(char **parv, unsigned int parc, char *msg, struct UserInfo *source_p) |
899 |
|
|
{ |
900 |
|
|
struct ChannelConf *channel; |
901 |
|
|
size_t nick_len; |
902 |
|
|
|
903 |
|
|
if(source_p == NULL) |
904 |
|
|
return; |
905 |
|
|
|
906 |
|
|
if(parc < 4) |
907 |
|
|
return; |
908 |
|
|
|
909 |
|
|
/* CTCP */ |
910 |
|
|
if(parv[3][0] == '\001') |
911 |
|
|
m_ctcp(parv, parc, msg, source_p); |
912 |
|
|
|
913 |
|
|
/* Only interested in privmsg to channels */ |
914 |
|
|
if(parv[2][0] != '#' && parv[2][0] != '&') |
915 |
|
|
return; |
916 |
|
|
|
917 |
|
|
/* Get a target */ |
918 |
|
|
if((channel = get_channel(parv[2])) == NULL) |
919 |
|
|
return; |
920 |
|
|
|
921 |
|
|
/* Find a suitable length to compare with */ |
922 |
|
|
nick_len = strcspn(parv[3], " :,"); |
923 |
|
|
if(nick_len < 3 && strlen(IRCItem->nick) >= 3) |
924 |
|
|
nick_len = 3; |
925 |
|
|
|
926 |
|
|
/* message is a command */ |
927 |
|
|
if(strncasecmp(parv[3], IRCItem->nick, nick_len) == 0 || |
928 |
|
|
strncasecmp(parv[3], "!all", 4) == 0) |
929 |
|
|
{ |
930 |
|
|
/* XXX command_parse will alter parv[3]. */ |
931 |
|
|
command_parse(parv[3], msg, channel, source_p); |
932 |
|
|
} |
933 |
|
|
} |
934 |
|
|
|
935 |
|
|
|
936 |
|
|
|
937 |
|
|
|
938 |
|
|
|
939 |
|
|
/* m_ctcp |
940 |
|
|
* parv[0] = source |
941 |
|
|
* parv[1] = PRIVMSG |
942 |
|
|
* parv[2] = target (channel or user) |
943 |
|
|
* parv[3] = message |
944 |
|
|
* |
945 |
|
|
* source_p: UserInfo struct of the source user, or NULL if |
946 |
|
|
* the source (parv[0]) is a server. |
947 |
|
|
* |
948 |
|
|
*/ |
949 |
|
|
|
950 |
|
|
static void m_ctcp(char **parv, unsigned int parc, char *msg, struct UserInfo *source_p) |
951 |
|
|
{ |
952 |
michael |
5084 |
if (strncasecmp(parv[3], "\001VERSION\001", 9) == 0) |
953 |
|
|
irc_send("NOTICE %s :\001VERSION Hybrid Open Proxy Monitor %s\001", |
954 |
|
|
source_p->irc_nick, VERSION); |
955 |
michael |
5052 |
} |
956 |
|
|
|
957 |
|
|
|
958 |
|
|
|
959 |
|
|
|
960 |
|
|
|
961 |
|
|
/* m_notice |
962 |
|
|
* |
963 |
|
|
* parv[0] = source |
964 |
|
|
* parv[1] = NOTICE |
965 |
|
|
* parv[2] = target |
966 |
|
|
* parv[3] = message |
967 |
|
|
* |
968 |
|
|
* |
969 |
|
|
* source_p: UserInfo struct of the source user, or NULL if |
970 |
|
|
* the source (parv[0]) is a server. |
971 |
|
|
* |
972 |
|
|
*/ |
973 |
|
|
|
974 |
|
|
static void m_notice(char **parv, unsigned int parc, char *msg, struct UserInfo *source_p) |
975 |
|
|
{ |
976 |
|
|
|
977 |
|
|
|
978 |
|
|
static regex_t *preg = NULL; |
979 |
|
|
regmatch_t pmatch[5]; |
980 |
|
|
|
981 |
|
|
static char errmsg[256]; |
982 |
|
|
int errnum, i; |
983 |
|
|
|
984 |
|
|
char *user[4]; |
985 |
|
|
|
986 |
|
|
if(parc < 4) |
987 |
|
|
return; |
988 |
|
|
|
989 |
|
|
/* Not interested in notices from users */ |
990 |
|
|
if(source_p != NULL) |
991 |
|
|
return; |
992 |
|
|
|
993 |
|
|
/* Compile the regular expression if it has not been already */ |
994 |
|
|
if(preg == NULL) |
995 |
|
|
{ |
996 |
|
|
preg = MyMalloc(sizeof *preg); |
997 |
|
|
|
998 |
|
|
if((errnum = regcomp(preg, IRCItem->connregex, REG_ICASE | REG_EXTENDED)) != 0) |
999 |
|
|
{ |
1000 |
|
|
|
1001 |
|
|
regerror(errnum, preg, errmsg, 256); |
1002 |
|
|
log_printf("IRC REGEX -> Error when compiling regular expression"); |
1003 |
|
|
log_printf("IRC REGEX -> %s", errmsg); |
1004 |
|
|
|
1005 |
|
|
MyFree(preg); |
1006 |
|
|
preg = NULL; |
1007 |
|
|
return; |
1008 |
|
|
} |
1009 |
|
|
} |
1010 |
|
|
|
1011 |
|
|
/* Match the expression against the possible connection notice */ |
1012 |
|
|
if(regexec(preg, parv[3], 5, pmatch, 0) != 0) |
1013 |
|
|
return; |
1014 |
|
|
|
1015 |
|
|
if(OPT_DEBUG > 0) |
1016 |
|
|
log_printf("IRC REGEX -> Regular expression caught connection notice. Parsing."); |
1017 |
|
|
|
1018 |
|
|
if(pmatch[4].rm_so == -1) |
1019 |
|
|
{ |
1020 |
|
|
log_printf("IRC REGEX -> pmatch[4].rm_so is -1 while parsing??? Aborting."); |
1021 |
|
|
return; |
1022 |
|
|
} |
1023 |
|
|
|
1024 |
|
|
/* |
1025 |
|
|
Offsets for data in the connection notice: |
1026 |
|
|
|
1027 |
|
|
NICKNAME: pmatch[1].rm_so TO pmatch[1].rm_eo |
1028 |
|
|
USERNAME: pmatch[2].rm_so TO pmatch[2].rm_eo |
1029 |
|
|
HOSTNAME: pmatch[3].rm_so TO pmatch[3].rm_eo |
1030 |
|
|
IP : pmatch[4].rm_so TO pmatch[4].rm_eo |
1031 |
|
|
|
1032 |
|
|
*/ |
1033 |
|
|
|
1034 |
|
|
for(i = 0; i < 4; i++) |
1035 |
|
|
{ |
1036 |
|
|
user[i] = (parv[3] + pmatch[i + 1].rm_so); |
1037 |
|
|
*(parv[3] + pmatch[i + 1].rm_eo) = '\0'; |
1038 |
|
|
} |
1039 |
|
|
|
1040 |
|
|
if(OPT_DEBUG > 0) |
1041 |
|
|
log_printf("IRC REGEX -> Parsed %s!%s@%s [%s] from connection notice.", |
1042 |
|
|
user[0], user[1], user[2], user[3]); |
1043 |
|
|
|
1044 |
|
|
/*FIXME (reminder) In the case of any rehash to the regex, preg MUST be freed first. |
1045 |
|
|
regfree(preg); |
1046 |
|
|
*/ |
1047 |
|
|
|
1048 |
|
|
/* Pass this information off to scan.c */ |
1049 |
|
|
scan_connect(user, msg); |
1050 |
|
|
/* Record the connect for stats purposes */ |
1051 |
|
|
stats_connect(); |
1052 |
|
|
} |
1053 |
|
|
|
1054 |
|
|
/* m_userhost |
1055 |
|
|
* |
1056 |
|
|
* parv[0] = source |
1057 |
|
|
* parv[1] = USERHOST |
1058 |
michael |
5069 |
* parv[2] = target (hopm) |
1059 |
michael |
5052 |
* parv[3] = :nick=(flags)user@host |
1060 |
|
|
* |
1061 |
|
|
* |
1062 |
|
|
* source_p: UserInfo struct of the source user, or NULL if |
1063 |
|
|
* the source (parv[0]) is a server. |
1064 |
|
|
* |
1065 |
|
|
*/ |
1066 |
|
|
|
1067 |
|
|
static void m_userhost(char **parv, unsigned int parc, char *msg, |
1068 |
|
|
struct UserInfo *source_p) |
1069 |
|
|
{ |
1070 |
|
|
if(parc < 4) |
1071 |
|
|
return; |
1072 |
|
|
|
1073 |
|
|
command_userhost(parv[3]); |
1074 |
|
|
} |
1075 |
|
|
|
1076 |
|
|
/* m_cannot_join |
1077 |
|
|
* |
1078 |
|
|
* parv[0] = source |
1079 |
|
|
* parv[1] = numeric |
1080 |
michael |
5069 |
* parv[2] = target (hopm) |
1081 |
michael |
5052 |
* parv[3] = channel |
1082 |
|
|
* parv[4] = error text |
1083 |
|
|
* |
1084 |
|
|
*/ |
1085 |
|
|
|
1086 |
|
|
static void m_cannot_join(char **parv, unsigned int parc, char *msg, |
1087 |
|
|
struct UserInfo *source_p) |
1088 |
|
|
{ |
1089 |
|
|
struct ChannelConf *channel; |
1090 |
|
|
|
1091 |
|
|
if(parc < 5) |
1092 |
|
|
return; |
1093 |
|
|
|
1094 |
|
|
/* Is it one of our channels? */ |
1095 |
|
|
if((channel = get_channel(parv[3])) == NULL) |
1096 |
|
|
return; |
1097 |
|
|
|
1098 |
michael |
5077 |
if (EmptyString(channel->invite)) |
1099 |
michael |
5052 |
return; |
1100 |
|
|
|
1101 |
|
|
irc_send("%s", channel->invite); |
1102 |
|
|
} |
1103 |
|
|
|
1104 |
|
|
|
1105 |
|
|
/* m_kill |
1106 |
|
|
* |
1107 |
|
|
* parv[0] = source |
1108 |
|
|
* parv[1] = numeric |
1109 |
michael |
5069 |
* parv[2] = target (hopm) |
1110 |
michael |
5052 |
* parv[3] = channel |
1111 |
|
|
* parv[4] = error text |
1112 |
|
|
* |
1113 |
|
|
*/ |
1114 |
|
|
|
1115 |
|
|
static void m_kill(char **parv, unsigned int parc, char *msg, struct UserInfo *source_p) |
1116 |
|
|
{ |
1117 |
michael |
5084 |
/* Restart hopm to rehash */ |
1118 |
|
|
main_restart(); |
1119 |
michael |
5052 |
} |