1 |
/* |
2 |
* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd) |
3 |
* |
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* Copyright (c) 1997-2014 ircd-hybrid development team |
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* |
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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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* |
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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 the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 |
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* USA |
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*/ |
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|
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/*! \file send.c |
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* \brief Functions for sending messages. |
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* \version $Id$ |
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*/ |
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|
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#include "stdinc.h" |
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#include "list.h" |
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#include "send.h" |
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#include "channel.h" |
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#include "client.h" |
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#include "dbuf.h" |
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#include "irc_string.h" |
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#include "ircd.h" |
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#include "numeric.h" |
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#include "fdlist.h" |
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#include "s_bsd.h" |
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#include "server.h" |
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#include "conf.h" |
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#include "log.h" |
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#include "memory.h" |
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#include "packet.h" |
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|
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|
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static unsigned int current_serial = 0; |
46 |
|
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|
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/* send_format() |
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* |
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* inputs |
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* - buffer |
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* - format pattern to use |
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* - var args |
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* output - number of bytes formatted output |
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* side effects - modifies sendbuf |
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*/ |
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static void |
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send_format(struct dbuf_block *buffer, const char *pattern, va_list args) |
59 |
{ |
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/* |
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* from rfc1459 |
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* |
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* IRC messages are always lines of characters terminated with a CR-LF |
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* (Carriage Return - Line Feed) pair, and these messages shall not |
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* exceed 512 characters in length, counting all characters |
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* including the trailing CR-LF. |
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* Thus, there are 510 characters maximum allowed |
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* for the command and its parameters. There is no provision for |
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* continuation message lines. See section 7 for more details about |
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* current implementations. |
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*/ |
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dbuf_put_args(buffer, pattern, args); |
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|
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if (buffer->size > sizeof(buffer->data) - 2) |
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buffer->size = sizeof(buffer->data) - 2; |
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|
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buffer->data[buffer->size++] = '\r'; |
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buffer->data[buffer->size++] = '\n'; |
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} |
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|
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/* |
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** send_message |
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** Internal utility which appends given buffer to the sockets |
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** sendq. |
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*/ |
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static void |
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send_message(struct Client *to, struct dbuf_block *buf) |
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{ |
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assert(!IsMe(to)); |
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assert(to != &me); |
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|
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if (dbuf_length(&to->connection->buf_sendq) + buf->size > get_sendq(&to->connection->confs)) |
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{ |
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if (IsServer(to)) |
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sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
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"Max SendQ limit exceeded for %s: %lu > %u", |
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get_client_name(to, HIDE_IP), |
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(unsigned long)(dbuf_length(&to->connection->buf_sendq) + buf->size), |
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get_sendq(&to->connection->confs)); |
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if (IsClient(to)) |
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SetSendQExceeded(to); |
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|
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dead_link_on_write(to, 0); |
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return; |
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} |
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|
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dbuf_add(&to->connection->buf_sendq, buf); |
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|
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/* |
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* Update statistics. The following is slightly incorrect because |
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* it counts messages even if queued, but bytes only really sent. |
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* Queued bytes get updated in send_queued_write(). |
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*/ |
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++to->connection->send.messages; |
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++me.connection->send.messages; |
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|
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send_queued_write(to); |
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} |
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|
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/* send_message_remote() |
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* |
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* inputs - pointer to client from message is being sent |
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* - pointer to client to send to |
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* - pointer to buffer |
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* output - none |
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* side effects - Despite the function name, this only sends to directly |
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* connected clients. |
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* |
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*/ |
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static void |
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send_message_remote(struct Client *to, struct Client *from, struct dbuf_block *buf) |
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{ |
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to = to->from; |
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|
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if (!MyConnect(to)) |
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{ |
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sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
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"Server send message to %s [%s] dropped from %s(Not local server)", |
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to->name, to->from->name, from->name); |
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return; |
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} |
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|
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/* Optimize by checking if (from && to) before everything */ |
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/* we set to->from up there.. */ |
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|
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if (!MyClient(from) && IsClient(to) && (to == from->from)) |
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{ |
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if (IsServer(from)) |
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{ |
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sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
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"Send message to %s [%s] dropped from %s(Fake Dir)", |
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to->name, to->from->name, from->name); |
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return; |
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} |
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|
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sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
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"Ghosted: %s[%s@%s] from %s[%s@%s] (%s)", |
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to->name, to->username, to->host, |
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from->name, from->username, from->host, |
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to->from->name); |
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|
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sendto_server(NULL, NOCAPS, NOCAPS, |
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":%s KILL %s :%s (%s[%s@%s] Ghosted %s)", |
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me.id, to->id, me.name, to->name, |
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to->username, to->host, to->from->name); |
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|
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AddFlag(to, FLAGS_KILLED); |
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|
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if (IsClient(from)) |
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sendto_one_numeric(from, &me, ERR_GHOSTEDCLIENT, to->name, |
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to->username, to->host, to->from); |
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|
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exit_client(to, "Ghosted client"); |
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return; |
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} |
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|
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send_message(to, buf); |
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} |
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|
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/* |
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** sendq_unblocked |
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** Called when a socket is ready for writing. |
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*/ |
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void |
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sendq_unblocked(fde_t *fd, void *data) |
186 |
{ |
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struct Client *client_p = data; |
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assert(fd == &client_p->connection->fd); |
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|
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DelFlag(client_p, FLAGS_BLOCKED); |
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send_queued_write(client_p); |
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} |
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|
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/* |
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** send_queued_write |
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** This is called when there is a chance that some output would |
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** be possible. This attempts to empty the send queue as far as |
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** possible, and then if any data is left, a write is rescheduled. |
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*/ |
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void |
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send_queued_write(struct Client *to) |
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{ |
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int retlen = 0; |
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|
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/* |
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** Once socket is marked dead, we cannot start writing to it, |
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** even if the error is removed... |
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*/ |
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if (IsDead(to) || HasFlag(to, FLAGS_BLOCKED)) |
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return; /* no use calling send() now */ |
211 |
|
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/* Next, lets try to write some data */ |
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if (dbuf_length(&to->connection->buf_sendq)) |
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{ |
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do |
216 |
{ |
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struct dbuf_block *first = to->connection->buf_sendq.blocks.head->data; |
218 |
|
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#ifdef HAVE_LIBCRYPTO |
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if (to->connection->fd.ssl) |
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{ |
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retlen = SSL_write(to->connection->fd.ssl, first->data + to->connection->buf_sendq.pos, first->size - to->connection->buf_sendq.pos); |
223 |
|
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/* translate openssl error codes, sigh */ |
225 |
if (retlen < 0) |
226 |
{ |
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switch (SSL_get_error(to->connection->fd.ssl, retlen)) |
228 |
{ |
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case SSL_ERROR_WANT_READ: |
230 |
return; /* retry later, don't register for write events */ |
231 |
case SSL_ERROR_WANT_WRITE: |
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errno = EWOULDBLOCK; |
233 |
case SSL_ERROR_SYSCALL: |
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break; |
235 |
case SSL_ERROR_SSL: |
236 |
if (errno == EAGAIN) |
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break; |
238 |
default: |
239 |
retlen = errno = 0; /* either an SSL-specific error or EOF */ |
240 |
} |
241 |
} |
242 |
} |
243 |
else |
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#endif |
245 |
retlen = send(to->connection->fd.fd, first->data + to->connection->buf_sendq.pos, first->size - to->connection->buf_sendq.pos, 0); |
246 |
|
247 |
if (retlen <= 0) |
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break; |
249 |
|
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dbuf_delete(&to->connection->buf_sendq, retlen); |
251 |
|
252 |
/* We have some data written .. update counters */ |
253 |
to->connection->send.bytes += retlen; |
254 |
me.connection->send.bytes += retlen; |
255 |
} while (dbuf_length(&to->connection->buf_sendq)); |
256 |
|
257 |
if (retlen < 0 && ignoreErrno(errno)) |
258 |
{ |
259 |
AddFlag(to, FLAGS_BLOCKED); |
260 |
|
261 |
/* we have a non-fatal error, reschedule a write */ |
262 |
comm_setselect(&to->connection->fd, COMM_SELECT_WRITE, |
263 |
sendq_unblocked, to, 0); |
264 |
} |
265 |
else if (retlen <= 0) |
266 |
{ |
267 |
dead_link_on_write(to, errno); |
268 |
return; |
269 |
} |
270 |
} |
271 |
} |
272 |
|
273 |
/* send_queued_all() |
274 |
* |
275 |
* input - NONE |
276 |
* output - NONE |
277 |
* side effects - try to flush sendq of each client |
278 |
*/ |
279 |
void |
280 |
send_queued_all(void) |
281 |
{ |
282 |
dlink_node *ptr; |
283 |
|
284 |
/* Servers are processed first, mainly because this can generate |
285 |
* a notice to opers, which is to be delivered by this function. |
286 |
*/ |
287 |
DLINK_FOREACH(ptr, local_server_list.head) |
288 |
send_queued_write(ptr->data); |
289 |
|
290 |
DLINK_FOREACH(ptr, unknown_list.head) |
291 |
send_queued_write(ptr->data); |
292 |
|
293 |
DLINK_FOREACH(ptr, local_client_list.head) |
294 |
send_queued_write(ptr->data); |
295 |
|
296 |
/* NOTE: This can still put clients on aborted_list; unfortunately, |
297 |
* exit_aborted_clients takes precedence over send_queued_all, |
298 |
* because exiting clients can generate server/oper traffic. |
299 |
* The easiest approach is dealing with aborted clients in the next I/O lap. |
300 |
* -adx |
301 |
*/ |
302 |
} |
303 |
|
304 |
/* sendto_one() |
305 |
* |
306 |
* inputs - pointer to destination client |
307 |
* - var args message |
308 |
* output - NONE |
309 |
* side effects - send message to single client |
310 |
*/ |
311 |
void |
312 |
sendto_one(struct Client *to, const char *pattern, ...) |
313 |
{ |
314 |
va_list args; |
315 |
struct dbuf_block *buffer = NULL; |
316 |
|
317 |
if (IsDead(to->from)) |
318 |
return; /* This socket has already been marked as dead */ |
319 |
|
320 |
buffer = dbuf_alloc(); |
321 |
|
322 |
va_start(args, pattern); |
323 |
send_format(buffer, pattern, args); |
324 |
va_end(args); |
325 |
|
326 |
send_message(to->from, buffer); |
327 |
|
328 |
dbuf_ref_free(buffer); |
329 |
} |
330 |
|
331 |
void |
332 |
sendto_one_numeric(struct Client *to, struct Client *from, enum irc_numerics numeric, ...) |
333 |
{ |
334 |
struct dbuf_block *buffer = NULL; |
335 |
const char *dest = NULL, *numstr = NULL; |
336 |
va_list args; |
337 |
|
338 |
if (IsDead(to->from)) |
339 |
return; |
340 |
|
341 |
dest = ID_or_name(to, to); |
342 |
|
343 |
if (EmptyString(dest)) |
344 |
dest = "*"; |
345 |
|
346 |
buffer = dbuf_alloc(); |
347 |
|
348 |
dbuf_put_fmt(buffer, ":%s %03d %s ", ID_or_name(from, to), numeric & ~SND_EXPLICIT, dest); |
349 |
|
350 |
va_start(args, numeric); |
351 |
|
352 |
if (numeric & SND_EXPLICIT) |
353 |
numstr = va_arg(args, const char *); |
354 |
else |
355 |
numstr = numeric_form(numeric); |
356 |
send_format(buffer, numstr, args); |
357 |
va_end(args); |
358 |
|
359 |
send_message(to->from, buffer); |
360 |
|
361 |
dbuf_ref_free(buffer); |
362 |
} |
363 |
|
364 |
void |
365 |
sendto_one_notice(struct Client *to, struct Client *from, const char *pattern, ...) |
366 |
{ |
367 |
struct dbuf_block *buffer = NULL; |
368 |
const char *dest = NULL; |
369 |
va_list args; |
370 |
|
371 |
if (IsDead(to->from)) |
372 |
return; |
373 |
|
374 |
dest = ID_or_name(to, to); |
375 |
|
376 |
if (EmptyString(dest)) |
377 |
dest = "*"; |
378 |
|
379 |
buffer = dbuf_alloc(); |
380 |
|
381 |
dbuf_put_fmt(buffer, ":%s NOTICE %s ", ID_or_name(from, to), dest); |
382 |
|
383 |
va_start(args, pattern); |
384 |
send_format(buffer, pattern, args); |
385 |
va_end(args); |
386 |
|
387 |
send_message(to->from, buffer); |
388 |
|
389 |
dbuf_ref_free(buffer); |
390 |
} |
391 |
|
392 |
/* sendto_channel_butone() |
393 |
* |
394 |
* inputs - pointer to client(server) to NOT send message to |
395 |
* - pointer to client that is sending this message |
396 |
* - pointer to channel being sent to |
397 |
* - vargs message |
398 |
* output - NONE |
399 |
* side effects - message as given is sent to given channel members. |
400 |
* |
401 |
* WARNING - +D clients are ignored |
402 |
*/ |
403 |
void |
404 |
sendto_channel_butone(struct Client *one, struct Client *from, |
405 |
struct Channel *chptr, unsigned int type, |
406 |
const char *pattern, ...) |
407 |
{ |
408 |
va_list alocal, aremote; |
409 |
struct dbuf_block *local_buf, *remote_buf; |
410 |
dlink_node *ptr = NULL, *ptr_next = NULL; |
411 |
|
412 |
local_buf = dbuf_alloc(), remote_buf = dbuf_alloc(); |
413 |
|
414 |
if (IsClient(from)) |
415 |
dbuf_put_fmt(local_buf, ":%s!%s@%s ", from->name, from->username, from->host); |
416 |
else |
417 |
dbuf_put_fmt(local_buf, ":%s ", from->name); |
418 |
|
419 |
dbuf_put_fmt(remote_buf, ":%s ", from->id); |
420 |
|
421 |
va_start(alocal, pattern); |
422 |
va_start(aremote, pattern); |
423 |
send_format(local_buf, pattern, alocal); |
424 |
send_format(remote_buf, pattern, aremote); |
425 |
|
426 |
va_end(aremote); |
427 |
va_end(alocal); |
428 |
|
429 |
++current_serial; |
430 |
|
431 |
DLINK_FOREACH_SAFE(ptr, ptr_next, chptr->members.head) |
432 |
{ |
433 |
struct Membership *ms = ptr->data; |
434 |
struct Client *target_p = ms->client_p; |
435 |
|
436 |
assert(IsClient(target_p)); |
437 |
|
438 |
if (IsDefunct(target_p) || HasUMode(target_p, UMODE_DEAF) || |
439 |
(one && target_p->from == one->from)) |
440 |
continue; |
441 |
|
442 |
if (type && (ms->flags & type) == 0) |
443 |
continue; |
444 |
|
445 |
if (MyConnect(target_p)) |
446 |
send_message(target_p, local_buf); |
447 |
else if (target_p->from->connection->serial != current_serial) |
448 |
send_message_remote(target_p->from, from, remote_buf); |
449 |
target_p->from->connection->serial = current_serial; |
450 |
} |
451 |
|
452 |
dbuf_ref_free(local_buf); |
453 |
dbuf_ref_free(remote_buf); |
454 |
} |
455 |
|
456 |
/* sendto_server() |
457 |
* |
458 |
* inputs - pointer to client to NOT send to |
459 |
* - pointer to channel |
460 |
* - caps or'd together which must ALL be present |
461 |
* - caps or'd together which must ALL NOT be present |
462 |
* - printf style format string |
463 |
* - args to format string |
464 |
* output - NONE |
465 |
* side effects - Send a message to all connected servers, except the |
466 |
* client 'one' (if non-NULL), as long as the servers |
467 |
* support ALL capabs in 'caps', and NO capabs in 'nocaps'. |
468 |
* |
469 |
* This function was written in an attempt to merge together the other |
470 |
* billion sendto_*serv*() functions, which sprung up with capabs, |
471 |
* lazylinks, uids, etc. |
472 |
* -davidt |
473 |
*/ |
474 |
void |
475 |
sendto_server(struct Client *one, |
476 |
const unsigned int caps, |
477 |
const unsigned int nocaps, |
478 |
const char *format, ...) |
479 |
{ |
480 |
va_list args; |
481 |
dlink_node *ptr = NULL; |
482 |
struct dbuf_block *buffer; |
483 |
|
484 |
buffer = dbuf_alloc(); |
485 |
|
486 |
va_start(args, format); |
487 |
send_format(buffer, format, args); |
488 |
va_end(args); |
489 |
|
490 |
DLINK_FOREACH(ptr, local_server_list.head) |
491 |
{ |
492 |
struct Client *client_p = ptr->data; |
493 |
|
494 |
/* If dead already skip */ |
495 |
if (IsDead(client_p)) |
496 |
continue; |
497 |
/* check against 'one' */ |
498 |
if (one && (client_p == one->from)) |
499 |
continue; |
500 |
/* check we have required capabs */ |
501 |
if ((client_p->connection->caps & caps) != caps) |
502 |
continue; |
503 |
/* check we don't have any forbidden capabs */ |
504 |
if ((client_p->connection->caps & nocaps)) |
505 |
continue; |
506 |
|
507 |
send_message(client_p, buffer); |
508 |
} |
509 |
|
510 |
dbuf_ref_free(buffer); |
511 |
} |
512 |
|
513 |
/* sendto_common_channels_local() |
514 |
* |
515 |
* inputs - pointer to client |
516 |
* - pattern to send |
517 |
* output - NONE |
518 |
* side effects - Sends a message to all people on local server who are |
519 |
* in same channel with user. |
520 |
* used by m_nick.c and exit_one_client. |
521 |
*/ |
522 |
void |
523 |
sendto_common_channels_local(struct Client *user, int touser, unsigned int cap, |
524 |
const char *pattern, ...) |
525 |
{ |
526 |
va_list args; |
527 |
dlink_node *uptr; |
528 |
dlink_node *cptr; |
529 |
struct Channel *chptr; |
530 |
struct Membership *ms; |
531 |
struct Client *target_p; |
532 |
struct dbuf_block *buffer; |
533 |
|
534 |
buffer = dbuf_alloc(); |
535 |
|
536 |
va_start(args, pattern); |
537 |
send_format(buffer, pattern, args); |
538 |
va_end(args); |
539 |
|
540 |
++current_serial; |
541 |
|
542 |
DLINK_FOREACH(cptr, user->channel.head) |
543 |
{ |
544 |
chptr = ((struct Membership *)cptr->data)->chptr; |
545 |
|
546 |
DLINK_FOREACH(uptr, chptr->locmembers.head) |
547 |
{ |
548 |
ms = uptr->data; |
549 |
target_p = ms->client_p; |
550 |
|
551 |
if (target_p == user || IsDefunct(target_p) || |
552 |
target_p->connection->serial == current_serial) |
553 |
continue; |
554 |
|
555 |
if (HasCap(target_p, cap) != cap) |
556 |
continue; |
557 |
|
558 |
target_p->connection->serial = current_serial; |
559 |
send_message(target_p, buffer); |
560 |
} |
561 |
} |
562 |
|
563 |
if (touser && MyConnect(user) && !IsDead(user) && |
564 |
user->connection->serial != current_serial) |
565 |
if (HasCap(user, cap) == cap) |
566 |
send_message(user, buffer); |
567 |
|
568 |
dbuf_ref_free(buffer); |
569 |
} |
570 |
|
571 |
/* sendto_channel_local() |
572 |
* |
573 |
* inputs - member status mask, e.g. CHFL_CHANOP | CHFL_VOICE |
574 |
* - whether to ignore +D clients (YES/NO) |
575 |
* - pointer to channel to send to |
576 |
* - var args pattern |
577 |
* output - NONE |
578 |
* side effects - Send a message to all members of a channel that are |
579 |
* locally connected to this server. |
580 |
*/ |
581 |
void |
582 |
sendto_channel_local(unsigned int type, int nodeaf, struct Channel *chptr, |
583 |
const char *pattern, ...) |
584 |
{ |
585 |
va_list args; |
586 |
dlink_node *ptr = NULL; |
587 |
struct dbuf_block *buffer; |
588 |
|
589 |
buffer = dbuf_alloc(); |
590 |
|
591 |
va_start(args, pattern); |
592 |
send_format(buffer, pattern, args); |
593 |
va_end(args); |
594 |
|
595 |
DLINK_FOREACH(ptr, chptr->locmembers.head) |
596 |
{ |
597 |
struct Membership *ms = ptr->data; |
598 |
struct Client *target_p = ms->client_p; |
599 |
|
600 |
if (type && (ms->flags & type) == 0) |
601 |
continue; |
602 |
|
603 |
if (IsDefunct(target_p) || |
604 |
(nodeaf && HasUMode(target_p, UMODE_DEAF))) |
605 |
continue; |
606 |
|
607 |
send_message(target_p, buffer); |
608 |
} |
609 |
|
610 |
dbuf_ref_free(buffer); |
611 |
} |
612 |
|
613 |
/* sendto_channel_local_butone() |
614 |
* |
615 |
* inputs - pointer to client to NOT send message to |
616 |
* - member status mask, e.g. CHFL_CHANOP | CHFL_VOICE |
617 |
* - pointer to channel to send to |
618 |
* - var args pattern |
619 |
* output - NONE |
620 |
* side effects - Send a message to all members of a channel that are |
621 |
* locally connected to this server except one. |
622 |
* |
623 |
* WARNING - +D clients are omitted |
624 |
*/ |
625 |
void |
626 |
sendto_channel_local_butone(struct Client *one, unsigned int type, unsigned int cap, |
627 |
struct Channel *chptr, const char *pattern, ...) |
628 |
{ |
629 |
va_list args; |
630 |
dlink_node *ptr = NULL; |
631 |
struct dbuf_block *buffer; |
632 |
|
633 |
buffer = dbuf_alloc(); |
634 |
|
635 |
va_start(args, pattern); |
636 |
send_format(buffer, pattern, args); |
637 |
va_end(args); |
638 |
|
639 |
DLINK_FOREACH(ptr, chptr->locmembers.head) |
640 |
{ |
641 |
struct Membership *ms = ptr->data; |
642 |
struct Client *target_p = ms->client_p; |
643 |
|
644 |
if (type && (ms->flags & type) == 0) |
645 |
continue; |
646 |
|
647 |
if (one && target_p == one->from) |
648 |
continue; |
649 |
|
650 |
if (IsDefunct(target_p) || HasUMode(target_p, UMODE_DEAF)) |
651 |
continue; |
652 |
|
653 |
if (HasCap(target_p, cap) != cap) |
654 |
continue; |
655 |
|
656 |
send_message(target_p, buffer); |
657 |
} |
658 |
|
659 |
dbuf_ref_free(buffer); |
660 |
} |
661 |
|
662 |
/* |
663 |
** match_it() and sendto_match_butone() ARE only used |
664 |
** to send a msg to all ppl on servers/hosts that match a specified mask |
665 |
** (used for enhanced PRIVMSGs) for opers |
666 |
** |
667 |
** addition -- Armin, 8jun90 (gruner@informatik.tu-muenchen.de) |
668 |
** |
669 |
*/ |
670 |
|
671 |
/* match_it() |
672 |
* |
673 |
* inputs - client pointer to match on |
674 |
* - actual mask to match |
675 |
* - what to match on, HOST or SERVER |
676 |
* output - 1 or 0 if match or not |
677 |
* side effects - NONE |
678 |
*/ |
679 |
static int |
680 |
match_it(const struct Client *one, const char *mask, unsigned int what) |
681 |
{ |
682 |
if (what == MATCH_HOST) |
683 |
return !match(mask, one->host); |
684 |
|
685 |
return !match(mask, one->servptr->name); |
686 |
} |
687 |
|
688 |
/* sendto_match_butone() |
689 |
* |
690 |
* Send to all clients which match the mask in a way defined on 'what'; |
691 |
* either by user hostname or user servername. |
692 |
* |
693 |
* ugh. ONLY used by m_message.c to send an "oper magic" message. ugh. |
694 |
*/ |
695 |
void |
696 |
sendto_match_butone(struct Client *one, struct Client *from, const char *mask, |
697 |
int what, const char *pattern, ...) |
698 |
{ |
699 |
va_list alocal, aremote; |
700 |
dlink_node *ptr = NULL, *ptr_next = NULL; |
701 |
struct dbuf_block *local_buf, *remote_buf; |
702 |
|
703 |
local_buf = dbuf_alloc(), remote_buf = dbuf_alloc(); |
704 |
|
705 |
dbuf_put_fmt(local_buf, ":%s!%s@%s ", from->name, from->username, from->host); |
706 |
dbuf_put_fmt(remote_buf, ":%s ", from->id); |
707 |
|
708 |
va_start(alocal, pattern); |
709 |
va_start(aremote, pattern); |
710 |
send_format(local_buf, pattern, alocal); |
711 |
send_format(remote_buf, pattern, aremote); |
712 |
va_end(aremote); |
713 |
va_end(alocal); |
714 |
|
715 |
/* scan the local clients */ |
716 |
DLINK_FOREACH(ptr, local_client_list.head) |
717 |
{ |
718 |
struct Client *client_p = ptr->data; |
719 |
|
720 |
if ((!one || client_p != one->from) && !IsDefunct(client_p) && |
721 |
match_it(client_p, mask, what)) |
722 |
send_message(client_p, local_buf); |
723 |
} |
724 |
|
725 |
/* Now scan servers */ |
726 |
DLINK_FOREACH_SAFE(ptr, ptr_next, local_server_list.head) |
727 |
{ |
728 |
struct Client *client_p = ptr->data; |
729 |
|
730 |
/* |
731 |
* The old code looped through every client on the |
732 |
* network for each server to check if the |
733 |
* server (client_p) has at least 1 client matching |
734 |
* the mask, using something like: |
735 |
* |
736 |
* for (target_p = GlobalClientList; target_p; target_p = target_p->next) |
737 |
* if (IsRegisteredUser(target_p) && |
738 |
* match_it(target_p, mask, what) && |
739 |
* (target_p->from == client_p)) |
740 |
* vsendto_prefix_one(client_p, from, pattern, args); |
741 |
* |
742 |
* That way, we wouldn't send the message to |
743 |
* a server who didn't have a matching client. |
744 |
* However, on a network such as EFNet, that |
745 |
* code would have looped through about 50 |
746 |
* servers, and in each loop, loop through |
747 |
* about 50k clients as well, calling match() |
748 |
* in each nested loop. That is a very bad |
749 |
* thing cpu wise - just send the message |
750 |
* to every connected server and let that |
751 |
* server deal with it. |
752 |
* -wnder |
753 |
*/ |
754 |
if ((!one || client_p != one->from) && !IsDefunct(client_p)) |
755 |
send_message_remote(client_p, from, remote_buf); |
756 |
} |
757 |
|
758 |
dbuf_ref_free(local_buf); |
759 |
dbuf_ref_free(remote_buf); |
760 |
} |
761 |
|
762 |
/* sendto_match_servs() |
763 |
* |
764 |
* inputs - source client |
765 |
* - mask to send to |
766 |
* - capab needed |
767 |
* - data |
768 |
* outputs - none |
769 |
* side effects - data sent to servers matching with capab |
770 |
*/ |
771 |
void |
772 |
sendto_match_servs(struct Client *source_p, const char *mask, unsigned int cap, |
773 |
const char *pattern, ...) |
774 |
{ |
775 |
va_list args; |
776 |
dlink_node *ptr = NULL, *ptr_next = NULL; |
777 |
struct dbuf_block *buffer; |
778 |
|
779 |
buffer = dbuf_alloc(); |
780 |
|
781 |
dbuf_put_fmt(buffer, ":%s ", source_p->id); |
782 |
va_start(args, pattern); |
783 |
send_format(buffer, pattern, args); |
784 |
va_end(args); |
785 |
|
786 |
++current_serial; |
787 |
|
788 |
DLINK_FOREACH_SAFE(ptr, ptr_next, global_server_list.head) |
789 |
{ |
790 |
struct Client *target_p = ptr->data; |
791 |
|
792 |
/* Do not attempt to send to ourselves, or the source */ |
793 |
if (IsMe(target_p) || target_p->from == source_p->from) |
794 |
continue; |
795 |
|
796 |
if (target_p->from->connection->serial == current_serial) |
797 |
continue; |
798 |
|
799 |
if (!match(mask, target_p->name)) |
800 |
{ |
801 |
/* |
802 |
* if we set the serial here, then we'll never do a |
803 |
* match() again, if !IsCapable() |
804 |
*/ |
805 |
target_p->from->connection->serial = current_serial; |
806 |
|
807 |
if (!IsCapable(target_p->from, cap)) |
808 |
continue; |
809 |
|
810 |
send_message_remote(target_p->from, source_p, buffer); |
811 |
} |
812 |
} |
813 |
|
814 |
dbuf_ref_free(buffer); |
815 |
} |
816 |
|
817 |
/* sendto_anywhere() |
818 |
* |
819 |
* inputs - pointer to dest client |
820 |
* - pointer to from client |
821 |
* - varags |
822 |
* output - NONE |
823 |
* side effects - less efficient than sendto_remote and sendto_one |
824 |
* but useful when one does not know where target "lives" |
825 |
*/ |
826 |
void |
827 |
sendto_anywhere(struct Client *to, struct Client *from, |
828 |
const char *command, |
829 |
const char *pattern, ...) |
830 |
{ |
831 |
va_list args; |
832 |
struct dbuf_block *buffer = NULL; |
833 |
|
834 |
if (IsDead(to->from)) |
835 |
return; |
836 |
|
837 |
buffer = dbuf_alloc(); |
838 |
|
839 |
if (MyClient(to) && IsClient(from)) |
840 |
dbuf_put_fmt(buffer, ":%s!%s@%s %s %s ", from->name, from->username, |
841 |
from->host, command, to->name); |
842 |
else |
843 |
dbuf_put_fmt(buffer, ":%s %s %s ", ID_or_name(from, to), |
844 |
command, ID_or_name(to, to)); |
845 |
|
846 |
va_start(args, pattern); |
847 |
send_format(buffer, pattern, args); |
848 |
va_end(args); |
849 |
|
850 |
if (MyClient(to)) |
851 |
send_message(to, buffer); |
852 |
else |
853 |
send_message_remote(to, from, buffer); |
854 |
|
855 |
dbuf_ref_free(buffer); |
856 |
} |
857 |
|
858 |
/* sendto_realops_flags() |
859 |
* |
860 |
* inputs - flag types of messages to show to real opers |
861 |
* - flag indicating opers/admins |
862 |
* - var args input message |
863 |
* output - NONE |
864 |
* side effects - Send to *local* ops only but NOT +s nonopers. |
865 |
*/ |
866 |
void |
867 |
sendto_realops_flags(unsigned int flags, int level, int type, const char *pattern, ...) |
868 |
{ |
869 |
const char *ntype = NULL; |
870 |
dlink_node *ptr = NULL; |
871 |
char nbuf[IRCD_BUFSIZE] = ""; |
872 |
va_list args; |
873 |
|
874 |
va_start(args, pattern); |
875 |
vsnprintf(nbuf, sizeof(nbuf), pattern, args); |
876 |
va_end(args); |
877 |
|
878 |
switch (type) |
879 |
{ |
880 |
case SEND_NOTICE: |
881 |
ntype = "Notice"; |
882 |
break; |
883 |
case SEND_GLOBAL: |
884 |
ntype = "Global"; |
885 |
break; |
886 |
case SEND_LOCOPS: |
887 |
ntype = "LocOps"; |
888 |
break; |
889 |
default: |
890 |
assert(0); |
891 |
} |
892 |
|
893 |
DLINK_FOREACH(ptr, oper_list.head) |
894 |
{ |
895 |
struct Client *client_p = ptr->data; |
896 |
assert(HasUMode(client_p, UMODE_OPER)); |
897 |
|
898 |
/* |
899 |
* If we're sending it to opers and they're an admin, skip. |
900 |
* If we're sending it to admins, and they're not, skip. |
901 |
*/ |
902 |
if (((level == L_ADMIN) && !HasUMode(client_p, UMODE_ADMIN)) || |
903 |
((level == L_OPER) && HasUMode(client_p, UMODE_ADMIN))) |
904 |
continue; |
905 |
|
906 |
if (HasUMode(client_p, flags)) |
907 |
sendto_one(client_p, ":%s NOTICE %s :*** %s -- %s", |
908 |
me.name, client_p->name, ntype, nbuf); |
909 |
} |
910 |
} |
911 |
|
912 |
/* ts_warn() |
913 |
* |
914 |
* inputs - var args message |
915 |
* output - NONE |
916 |
* side effects - Call sendto_realops_flags, with some flood checking |
917 |
* (at most 5 warnings every 5 seconds) |
918 |
*/ |
919 |
void |
920 |
sendto_realops_flags_ratelimited(time_t *rate, const char *pattern, ...) |
921 |
{ |
922 |
va_list args; |
923 |
char buffer[IRCD_BUFSIZE] = ""; |
924 |
|
925 |
if ((CurrentTime - *rate) < 20) |
926 |
return; |
927 |
*rate = CurrentTime; |
928 |
|
929 |
va_start(args, pattern); |
930 |
vsnprintf(buffer, sizeof(buffer), pattern, args); |
931 |
va_end(args); |
932 |
|
933 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, "%s", buffer); |
934 |
ilog(LOG_TYPE_IRCD, "%s", buffer); |
935 |
} |
936 |
|
937 |
/* sendto_wallops_flags() |
938 |
* |
939 |
* inputs - flag types of messages to show to real opers |
940 |
* - client sending request |
941 |
* - var args input message |
942 |
* output - NONE |
943 |
* side effects - Send a wallops to local opers |
944 |
*/ |
945 |
void |
946 |
sendto_wallops_flags(unsigned int flags, struct Client *source_p, |
947 |
const char *pattern, ...) |
948 |
{ |
949 |
dlink_node *ptr = NULL; |
950 |
va_list args; |
951 |
struct dbuf_block *buffer; |
952 |
|
953 |
buffer = dbuf_alloc(); |
954 |
|
955 |
if (IsClient(source_p)) |
956 |
dbuf_put_fmt(buffer, ":%s!%s@%s WALLOPS :", source_p->name, source_p->username, source_p->host); |
957 |
else |
958 |
dbuf_put_fmt(buffer, ":%s WALLOPS :", source_p->name); |
959 |
|
960 |
va_start(args, pattern); |
961 |
send_format(buffer, pattern, args); |
962 |
va_end(args); |
963 |
|
964 |
DLINK_FOREACH(ptr, oper_list.head) |
965 |
{ |
966 |
struct Client *client_p = ptr->data; |
967 |
assert(client_p->umodes & UMODE_OPER); |
968 |
|
969 |
if (HasUMode(client_p, flags) && !IsDefunct(client_p)) |
970 |
send_message(client_p, buffer); |
971 |
} |
972 |
|
973 |
dbuf_ref_free(buffer); |
974 |
} |