2000-04-26 04:03:38 -04:00
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/*
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dcc.c : irssi
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2001-01-17 21:30:59 -05:00
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Copyright (C) 1999-2001 Timo Sirainen
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2000-04-26 04:03:38 -04:00
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "module.h"
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#include "signals.h"
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#include "commands.h"
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#include "network.h"
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2000-07-23 09:43:42 -04:00
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#include "net-sendbuffer.h"
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2000-04-26 04:03:38 -04:00
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#include "line-split.h"
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#include "settings.h"
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#include "irc.h"
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2001-01-17 21:30:59 -05:00
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#include "dcc-chat.h"
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#include "dcc-get.h"
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2000-04-26 04:03:38 -04:00
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2001-01-17 21:30:59 -05:00
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void dcc_send_init(void);
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void dcc_send_deinit(void);
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2000-05-04 06:32:42 -04:00
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2001-01-17 21:30:59 -05:00
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void dcc_resume_init(void);
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void dcc_resume_deinit(void);
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void dcc_autoget_init(void);
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void dcc_autoget_deinit(void);
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2000-05-04 06:32:42 -04:00
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2000-04-26 04:03:38 -04:00
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#define DCC_TYPES 5
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2000-07-10 19:00:56 -04:00
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static const char *dcc_types[] = {
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2000-06-03 21:36:07 -04:00
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"CHAT",
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"SEND",
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"GET",
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"RESUME",
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"ACCEPT"
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2000-04-26 04:03:38 -04:00
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};
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GSList *dcc_conns;
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2000-06-03 21:36:07 -04:00
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static int dcc_timeouttag;
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2000-04-26 04:03:38 -04:00
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/* Create new DCC record */
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2001-01-17 21:30:59 -05:00
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DCC_REC *dcc_create(int type, const char *nick, const char *arg,
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2000-06-03 21:36:07 -04:00
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IRC_SERVER_REC *server, DCC_REC *chat)
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2000-04-26 04:03:38 -04:00
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{
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2000-06-03 21:36:07 -04:00
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DCC_REC *dcc;
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g_return_val_if_fail(nick != NULL, NULL);
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g_return_val_if_fail(arg != NULL, NULL);
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dcc = g_new0(DCC_REC, 1);
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dcc->mirc_ctcp = settings_get_bool("dcc_mirc_ctcp");
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dcc->created = time(NULL);
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dcc->chat = chat;
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dcc->type = type;
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dcc->arg = g_strdup(arg);
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dcc->nick = g_strdup(nick);
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dcc->fhandle = -1;
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2000-07-15 09:04:03 -04:00
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dcc->tagconn = dcc->tagread = dcc->tagwrite = -1;
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2000-06-03 21:36:07 -04:00
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dcc->server = server;
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dcc->mynick = g_strdup(server != NULL ? server->nick :
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chat != NULL ? chat->nick : "??");
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dcc->ircnet = server == NULL ?
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(chat == NULL || chat->ircnet == NULL ? NULL : g_strdup(chat->ircnet)) :
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2000-08-26 11:39:44 -04:00
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(server->connrec->chatnet == NULL ? NULL : g_strdup(server->connrec->chatnet));
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2000-06-03 21:36:07 -04:00
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dcc_conns = g_slist_append(dcc_conns, dcc);
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signal_emit("dcc created", 1, dcc);
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return dcc;
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2000-04-26 04:03:38 -04:00
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}
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2000-06-03 21:36:07 -04:00
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static void dcc_remove_chat_refs(DCC_REC *dcc)
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2000-04-26 04:03:38 -04:00
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{
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2000-06-03 21:36:07 -04:00
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GSList *tmp;
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2000-04-26 04:03:38 -04:00
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2000-06-03 21:36:07 -04:00
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g_return_if_fail(dcc != NULL);
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2000-04-26 04:03:38 -04:00
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2000-06-03 21:36:07 -04:00
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for (tmp = dcc_conns; tmp != NULL; tmp = tmp->next) {
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DCC_REC *rec = tmp->data;
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2000-04-26 04:03:38 -04:00
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2000-06-03 21:36:07 -04:00
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if (rec->chat == dcc)
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rec->chat = NULL;
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}
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2000-04-26 04:03:38 -04:00
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}
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2000-06-03 21:36:07 -04:00
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/* Destroy DCC record */
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void dcc_destroy(DCC_REC *dcc)
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2000-04-26 04:03:38 -04:00
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{
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2000-06-03 21:36:07 -04:00
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g_return_if_fail(dcc != NULL);
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if (dcc->destroyed) return;
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dcc_conns = g_slist_remove(dcc_conns, dcc);
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dcc_remove_chat_refs(dcc);
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dcc->destroyed = TRUE;
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signal_emit("dcc destroyed", 1, dcc);
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if (dcc->fhandle != -1) close(dcc->fhandle);
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2000-12-04 17:57:18 -05:00
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if (dcc->handle != NULL) net_disconnect(dcc->handle);
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2000-07-15 09:04:03 -04:00
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if (dcc->tagconn != -1) g_source_remove(dcc->tagconn);
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2000-06-03 21:36:07 -04:00
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if (dcc->tagread != -1) g_source_remove(dcc->tagread);
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if (dcc->tagwrite != -1) g_source_remove(dcc->tagwrite);
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2000-07-23 09:43:42 -04:00
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if (dcc->sendbuf != NULL) net_sendbuffer_destroy(dcc->sendbuf, FALSE);
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2000-06-03 21:36:07 -04:00
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if (dcc->type == DCC_TYPE_CHAT)
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line_split_free((LINEBUF_REC *) dcc->databuf);
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else if (dcc->databuf != NULL)
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g_free(dcc->databuf);
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g_free_not_null(dcc->file);
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g_free_not_null(dcc->ircnet);
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2001-01-17 21:30:59 -05:00
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g_free_not_null(dcc->chat_id);
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g_free_not_null(dcc->target);
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2000-06-03 21:36:07 -04:00
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g_free(dcc->mynick);
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g_free(dcc->nick);
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g_free(dcc->arg);
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g_free(dcc);
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}
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2000-04-26 04:03:38 -04:00
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2000-06-03 21:36:07 -04:00
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void dcc_make_address(IPADDR *ip, char *host)
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{
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unsigned long addr;
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if (is_ipv6_addr(ip)) {
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/* IPv6 */
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net_ip2host(ip, host);
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} else {
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memcpy(&addr, &ip->addr, 4);
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2000-12-19 12:48:42 -05:00
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g_snprintf(host, MAX_IP_LEN, "%lu",
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(unsigned long) htonl(addr));
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2000-06-03 21:36:07 -04:00
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}
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2000-04-26 04:03:38 -04:00
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}
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2001-01-17 21:30:59 -05:00
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DCC_REC *dcc_find_request_latest(int type)
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2000-04-26 04:03:38 -04:00
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{
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2001-01-17 21:30:59 -05:00
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DCC_REC *latest;
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GSList *tmp;
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2000-04-26 04:03:38 -04:00
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2001-01-17 21:30:59 -05:00
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latest = NULL;
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2000-06-03 21:36:07 -04:00
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for (tmp = dcc_conns; tmp != NULL; tmp = tmp->next) {
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2001-01-17 21:30:59 -05:00
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DCC_REC *dcc = tmp->data;
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2000-04-26 04:03:38 -04:00
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2001-01-17 21:30:59 -05:00
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if (dcc->type == type && dcc_is_waiting_user(dcc))
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latest = dcc;
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2000-06-03 21:36:07 -04:00
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}
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2000-04-26 04:03:38 -04:00
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2001-01-17 21:30:59 -05:00
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return latest;
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2000-04-26 04:03:38 -04:00
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}
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2001-01-17 21:30:59 -05:00
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DCC_REC *dcc_find_request(int type, const char *nick, const char *arg)
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2000-04-26 04:03:38 -04:00
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{
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2000-06-03 21:36:07 -04:00
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GSList *tmp;
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2000-04-26 04:03:38 -04:00
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2001-01-17 21:30:59 -05:00
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g_return_val_if_fail(nick != NULL, NULL);
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2000-06-03 21:36:07 -04:00
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for (tmp = dcc_conns; tmp != NULL; tmp = tmp->next) {
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2001-01-17 21:30:59 -05:00
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DCC_REC *dcc = tmp->data;
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2000-04-26 04:03:38 -04:00
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2001-01-17 21:30:59 -05:00
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if (dcc->type == type && !dcc_is_connected(dcc) &&
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g_strcasecmp(dcc->nick, nick) == 0 &&
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(arg == NULL || strcmp(dcc->arg, arg) == 0))
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2000-06-03 21:36:07 -04:00
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return dcc;
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}
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2000-04-26 04:03:38 -04:00
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2000-06-03 21:36:07 -04:00
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return NULL;
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2000-04-26 04:03:38 -04:00
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}
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2000-06-03 21:36:07 -04:00
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const char *dcc_type2str(int type)
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2000-04-26 04:03:38 -04:00
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{
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2000-06-03 21:36:07 -04:00
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g_return_val_if_fail(type >= 1 && type <= DCC_TYPES, NULL);
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return dcc_types[type-1];
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2000-04-26 04:03:38 -04:00
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}
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2000-06-03 21:36:07 -04:00
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int dcc_str2type(const char *type)
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2000-04-26 04:03:38 -04:00
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{
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2000-06-03 21:36:07 -04:00
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int num;
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2000-04-26 04:03:38 -04:00
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2000-06-03 21:36:07 -04:00
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for (num = 0; num < DCC_TYPES; num++) {
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if (g_strcasecmp(dcc_types[num], type) == 0)
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return num+1;
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}
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2000-04-26 04:03:38 -04:00
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2000-06-03 21:36:07 -04:00
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return 0;
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2000-04-26 04:03:38 -04:00
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}
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2001-01-17 21:30:59 -05:00
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GIOChannel *dcc_listen(GIOChannel *interface, IPADDR *ip, int *port)
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{
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if (net_getsockname(interface, ip, NULL) == -1)
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return NULL;
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*port = settings_get_int("dcc_port");
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return net_listen(ip, port);
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}
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void dcc_get_address(const char *str, IPADDR *ip)
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{
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unsigned long addr;
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if (strchr(str, ':') == NULL) {
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/* normal IPv4 address in 32bit number form */
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addr = strtoul(str, NULL, 10);
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ip->family = AF_INET;
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addr = (unsigned long) ntohl(addr);
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memcpy(&ip->addr, &addr, 4);
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} else {
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/* IPv6 - in standard form */
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net_host2ip(str, ip);
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}
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}
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2000-12-05 16:12:52 -05:00
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void dcc_ctcp_message(IRC_SERVER_REC *server, const char *target,
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DCC_REC *chat, int notice, const char *msg)
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2000-04-26 04:03:38 -04:00
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{
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2000-06-03 21:36:07 -04:00
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char *str;
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2000-08-25 18:53:22 -04:00
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if (chat != NULL && chat->sendbuf != NULL) {
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2000-06-03 21:36:07 -04:00
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/* send it via open DCC chat */
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str = g_strdup_printf("%s\001%s\001", chat->mirc_ctcp ? "" :
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2001-01-17 21:30:59 -05:00
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notice ? "CTCP_REPLY " :
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"CTCP_MESSAGE ", msg);
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2000-06-03 21:36:07 -04:00
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dcc_chat_send(chat, str);
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2001-01-17 21:30:59 -05:00
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g_free(str);
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2000-06-03 21:36:07 -04:00
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} else {
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2001-01-17 21:30:59 -05:00
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irc_send_cmdv(server, "%s %s :\001%s\001",
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notice ? "NOTICE" : "PRIVMSG", target, msg);
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2000-06-03 21:36:07 -04:00
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}
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2000-04-26 04:03:38 -04:00
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}
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/* Server connected, check if there's any open dcc sessions for this ircnet.. */
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static void dcc_server_connected(IRC_SERVER_REC *server)
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{
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GSList *tmp;
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g_return_if_fail(server != NULL);
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2000-08-26 11:39:44 -04:00
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if (server->connrec->chatnet == NULL)
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2000-04-26 04:03:38 -04:00
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return;
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for (tmp = dcc_conns; tmp != NULL; tmp = tmp->next) {
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DCC_REC *dcc = tmp->data;
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if (dcc->server == NULL && dcc->ircnet != NULL &&
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2000-08-26 11:39:44 -04:00
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g_strcasecmp(dcc->ircnet, server->connrec->chatnet) == 0) {
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2000-04-26 04:03:38 -04:00
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dcc->server = server;
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g_free(dcc->mynick);
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dcc->mynick = g_strdup(server->nick);
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}
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}
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}
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/* Server disconnected, remove it from all dcc records */
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static void dcc_server_disconnected(IRC_SERVER_REC *server)
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{
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2000-06-03 21:36:07 -04:00
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GSList *tmp;
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2000-04-26 04:03:38 -04:00
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2000-06-03 21:36:07 -04:00
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g_return_if_fail(server != NULL);
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2000-04-26 04:03:38 -04:00
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2000-06-03 21:36:07 -04:00
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for (tmp = dcc_conns; tmp != NULL; tmp = tmp->next) {
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DCC_REC *dcc = tmp->data;
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2000-04-26 04:03:38 -04:00
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2000-06-03 21:36:07 -04:00
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if (dcc->server != server)
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continue;
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2001-01-17 21:30:59 -05:00
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dcc->server = dcc->ircnet == NULL ? NULL :
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IRC_SERVER(server_find_chatnet(dcc->ircnet));
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if (dcc->server != NULL) {
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g_free(dcc->mynick);
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dcc->mynick = g_strdup(dcc->server->nick);
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2000-06-03 21:36:07 -04:00
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}
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}
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2000-04-26 04:03:38 -04:00
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}
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2001-01-17 21:30:59 -05:00
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/* Handle incoming DCC CTCP messages - either from IRC server or DCC chat */
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static void ctcp_msg_dcc(IRC_SERVER_REC *server, const char *data,
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const char *nick, const char *addr,
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const char *target, DCC_REC *chat)
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2000-04-26 04:03:38 -04:00
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{
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2001-01-17 21:30:59 -05:00
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char *args, *str;
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2000-06-03 21:36:07 -04:00
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2001-01-17 21:30:59 -05:00
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str = g_strconcat("ctcp msg dcc ", data, NULL);
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args = strchr(str+13, ' ');
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if (args != NULL) *args++ = '\0'; else args = "";
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g_strdown(str+13);
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if (!signal_emit(str, 6, server, args, nick, addr, target, chat)) {
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signal_emit("default ctcp msg dcc", 6,
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server, data, nick, addr, target, chat);
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2000-06-03 21:36:07 -04:00
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}
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2001-01-17 21:30:59 -05:00
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g_free(str);
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2000-04-26 04:03:38 -04:00
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}
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2001-01-17 21:30:59 -05:00
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/* Handle incoming DCC CTCP replies - either from IRC server or DCC chat */
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static void ctcp_reply_dcc(IRC_SERVER_REC *server, const char *data,
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const char *nick, const char *addr,
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const char *target)
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2000-04-26 04:03:38 -04:00
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{
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2001-01-17 21:30:59 -05:00
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char *args, *str;
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str = g_strconcat("ctcp reply dcc ", data, NULL);
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args = strchr(str+15, ' ');
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if (args != NULL) *args++ = '\0'; else args = "";
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g_strdown(str+15);
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if (!signal_emit(str, 5, server, args, nick, addr, target)) {
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signal_emit("default ctcp reply dcc", 5,
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server, data, nick, addr, target);
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}
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g_free(str);
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2000-04-26 04:03:38 -04:00
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}
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2001-01-17 21:30:59 -05:00
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/* CTCP REPLY: REJECT */
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static void ctcp_reply_dcc_reject(IRC_SERVER_REC *server, const char *data,
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const char *nick, const char *addr,
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DCC_REC *chat)
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2000-04-26 04:03:38 -04:00
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{
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2001-01-17 21:30:59 -05:00
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DCC_REC *dcc;
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char *typestr, *args;
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int type;
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typestr = g_strdup(data);
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args = strchr(typestr, ' ');
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if (args != NULL) *args++ = '\0'; else args = "";
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type = dcc_str2type(typestr);
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dcc = dcc_find_request(type, nick,
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type == DCC_TYPE_CHAT ? NULL : args);
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if (dcc != NULL) {
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signal_emit("dcc closed", 1, dcc);
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dcc_destroy(dcc);
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}
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g_free(typestr);
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2000-04-26 04:03:38 -04:00
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}
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2001-01-17 21:30:59 -05:00
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/* Reject a DCC request */
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2001-01-02 11:14:19 -05:00
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void dcc_reject(DCC_REC *dcc, IRC_SERVER_REC *server)
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2000-04-26 04:03:38 -04:00
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{
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2001-01-17 21:30:59 -05:00
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g_return_if_fail(dcc != NULL);
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2000-04-26 04:03:38 -04:00
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2001-01-17 21:30:59 -05:00
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if (dcc->server != NULL) server = dcc->server;
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if (server != NULL && (dcc->type != DCC_TYPE_CHAT ||
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dcc->starttime == 0)) {
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signal_emit("dcc rejected", 1, dcc);
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irc_send_cmdv(server, "NOTICE %s :\001DCC REJECT %s %s\001",
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dcc->nick, dcc_type2str(SWAP_SENDGET(dcc->type)),
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dcc->arg);
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}
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2000-04-26 04:03:38 -04:00
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2001-01-17 21:30:59 -05:00
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signal_emit("dcc closed", 1, dcc);
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dcc_destroy(dcc);
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}
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static int dcc_timeout_func(void)
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{
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GSList *tmp, *next;
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time_t now;
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2000-04-26 04:03:38 -04:00
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2001-01-17 21:30:59 -05:00
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now = time(NULL)-settings_get_int("dcc_timeout");
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for (tmp = dcc_conns; tmp != NULL; tmp = next) {
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DCC_REC *rec = tmp->data;
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2000-04-26 04:03:38 -04:00
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2001-01-17 21:30:59 -05:00
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next = tmp->next;
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if (rec->tagread == -1 && now > rec->created) {
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/* timed out. */
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dcc_reject(rec, NULL);
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}
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}
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return 1;
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2000-04-26 04:03:38 -04:00
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}
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2001-01-17 21:30:59 -05:00
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static void event_no_such_nick(IRC_SERVER_REC *server, char *data)
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2000-04-26 04:03:38 -04:00
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{
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2001-01-17 21:30:59 -05:00
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char *params, *nick;
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GSList *tmp, *next;
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2000-04-26 04:03:38 -04:00
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2001-01-17 21:30:59 -05:00
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g_return_if_fail(data != NULL);
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2000-04-26 04:03:38 -04:00
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2001-01-17 21:30:59 -05:00
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params = event_get_params(data, 2, NULL, &nick);
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2000-04-26 04:03:38 -04:00
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2001-01-17 21:30:59 -05:00
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/* check if we've send any dcc requests to this nick.. */
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for (tmp = dcc_conns; tmp != NULL; tmp = next) {
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DCC_REC *dcc = tmp->data;
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2000-11-16 21:45:04 -05:00
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2001-01-17 21:30:59 -05:00
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next = tmp->next;
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if (!dcc_is_connected(dcc) && dcc->server == server &&
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g_strcasecmp(dcc->nick, nick) == 0) {
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signal_emit("dcc closed", 1, dcc);
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dcc_destroy(dcc);
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}
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}
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2000-04-26 04:03:38 -04:00
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2001-01-17 21:30:59 -05:00
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g_free(params);
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2000-04-26 04:03:38 -04:00
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}
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2001-01-17 21:30:59 -05:00
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/* SYNTAX: DCC CLOSE <type> <nick> [<file>] */
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static void cmd_dcc_close(char *data, IRC_SERVER_REC *server)
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2000-04-26 04:03:38 -04:00
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{
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2001-01-17 21:30:59 -05:00
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GSList *tmp, *next;
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char *typestr, *nick, *arg;
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void *free_arg;
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int found, type;
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2000-04-26 04:03:38 -04:00
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2001-01-17 21:30:59 -05:00
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g_return_if_fail(data != NULL);
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if (!cmd_get_params(data, &free_arg, 3, &typestr, &nick, &arg))
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return;
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if (*nick == '\0') cmd_param_error(CMDERR_NOT_ENOUGH_PARAMS);
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g_strup(typestr);
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type = dcc_str2type(typestr);
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if (type == 0) {
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signal_emit("dcc error unknown type", 1, typestr);
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cmd_params_free(free_arg);
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return;
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}
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2000-04-26 04:03:38 -04:00
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2001-01-17 21:30:59 -05:00
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found = FALSE;
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for (tmp = dcc_conns; tmp != NULL; tmp = next) {
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DCC_REC *dcc = tmp->data;
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2000-04-26 04:03:38 -04:00
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2001-01-17 21:30:59 -05:00
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next = tmp->next;
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if (dcc->type == type &&
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g_strcasecmp(dcc->chat_id != NULL ?
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dcc->chat_id : dcc->nick, nick) == 0 &&
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(*arg == '\0' || strcmp(dcc->arg, arg) == 0)) {
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dcc_reject(dcc, server);
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found = TRUE;
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}
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}
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2000-04-26 04:03:38 -04:00
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2001-01-17 21:30:59 -05:00
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if (!found) {
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signal_emit("dcc error close not found", 3,
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typestr, nick, arg);
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}
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2000-04-26 04:03:38 -04:00
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2001-01-17 21:30:59 -05:00
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cmd_params_free(free_arg);
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}
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2000-04-26 04:03:38 -04:00
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2001-01-17 21:30:59 -05:00
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static void cmd_dcc(const char *data, IRC_SERVER_REC *server, void *item)
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{
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command_runsub("dcc", data, server, item);
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2000-04-26 04:03:38 -04:00
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}
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2000-05-25 07:30:47 -04:00
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void irc_dcc_init(void)
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2000-04-26 04:03:38 -04:00
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{
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2001-01-17 21:30:59 -05:00
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dcc_conns = NULL;
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dcc_timeouttag = g_timeout_add(1000, (GSourceFunc) dcc_timeout_func, NULL);
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settings_add_bool("dcc", "dcc_mirc_ctcp", FALSE);
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settings_add_int("dcc", "dcc_port", 0);
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settings_add_int("dcc", "dcc_timeout", 300);
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settings_add_int("dcc", "dcc_block_size", 2048);
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signal_add("server connected", (SIGNAL_FUNC) dcc_server_connected);
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signal_add("server disconnected", (SIGNAL_FUNC) dcc_server_disconnected);
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signal_add("ctcp msg dcc", (SIGNAL_FUNC) ctcp_msg_dcc);
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signal_add("ctcp reply dcc", (SIGNAL_FUNC) ctcp_reply_dcc);
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signal_add("ctcp reply dcc reject", (SIGNAL_FUNC) ctcp_reply_dcc_reject);
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command_bind("dcc", NULL, (SIGNAL_FUNC) cmd_dcc);
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command_bind("dcc close", NULL, (SIGNAL_FUNC) cmd_dcc_close);
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signal_add("event 401", (SIGNAL_FUNC) event_no_such_nick);
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dcc_chat_init();
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dcc_get_init();
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dcc_send_init();
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dcc_resume_init();
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dcc_autoget_init();
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2000-04-26 04:03:38 -04:00
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}
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2000-05-25 07:30:47 -04:00
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void irc_dcc_deinit(void)
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2000-04-26 04:03:38 -04:00
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{
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2001-01-17 21:30:59 -05:00
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dcc_chat_deinit();
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dcc_get_deinit();
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dcc_send_deinit();
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dcc_resume_deinit();
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dcc_autoget_deinit();
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signal_remove("server connected", (SIGNAL_FUNC) dcc_server_connected);
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signal_remove("server disconnected", (SIGNAL_FUNC) dcc_server_disconnected);
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signal_remove("ctcp msg dcc", (SIGNAL_FUNC) ctcp_msg_dcc);
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signal_remove("ctcp reply dcc", (SIGNAL_FUNC) ctcp_reply_dcc);
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signal_remove("ctcp reply dcc reject", (SIGNAL_FUNC) ctcp_reply_dcc_reject);
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command_unbind("dcc", (SIGNAL_FUNC) cmd_dcc);
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command_unbind("dcc close", (SIGNAL_FUNC) cmd_dcc_close);
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signal_remove("event 401", (SIGNAL_FUNC) event_no_such_nick);
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g_source_remove(dcc_timeouttag);
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while (dcc_conns != NULL)
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dcc_destroy(dcc_conns->data);
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2000-04-26 04:03:38 -04:00
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}
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