1 |
/* |
2 |
* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd) |
3 |
* |
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* Copyright (c) 1997-2015 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 "s_bsd.h" |
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#include "server.h" |
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#include "conf_class.h" |
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#include "log.h" |
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|
40 |
|
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static uint64_t current_serial; |
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|
43 |
|
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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 |
54 |
send_format(struct dbuf_block *buffer, const char *pattern, va_list args) |
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{ |
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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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|
70 |
if (buffer->size > IRCD_BUFSIZE - 2) |
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buffer->size = IRCD_BUFSIZE - 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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/* |
78 |
** send_message |
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** Internal utility which appends given buffer to the sockets |
80 |
** sendq. |
81 |
*/ |
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static void |
83 |
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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assert(MyConnect(to)); |
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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_SERVNOTICE, L_ALL, SEND_NOTICE, |
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"Max SendQ limit exceeded for %s: %zu > %u", |
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get_client_name(to, HIDE_IP), |
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(dbuf_length(&to->connection->buf_sendq) + buf->size), |
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get_sendq(&to->connection->confs)); |
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|
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if (IsClient(to)) |
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AddFlag(to, FLAGS_SENDQEX); |
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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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assert(MyConnect(to)); |
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assert(IsServer(to)); |
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assert(!IsMe(to)); |
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assert(to->from == to); |
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|
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if (to == from->from) |
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{ |
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sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE, |
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"Send message to %s dropped from %s (Fake Dir)", |
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to->name, from->name); |
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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) |
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{ |
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struct Client *const 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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} |
160 |
|
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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 */ |
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|
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/* Next, lets try to write some data */ |
180 |
if (dbuf_length(&to->connection->buf_sendq)) |
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{ |
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do |
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{ |
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const struct dbuf_block *first = to->connection->buf_sendq.blocks.head->data; |
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|
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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); |
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|
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/* translate openssl error codes, sigh */ |
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if (retlen < 0) |
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{ |
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switch (SSL_get_error(to->connection->fd.ssl, retlen)) |
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{ |
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case SSL_ERROR_WANT_READ: |
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return; /* retry later, don't register for write events */ |
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case SSL_ERROR_WANT_WRITE: |
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errno = EWOULDBLOCK; |
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case SSL_ERROR_SYSCALL: |
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break; |
202 |
case SSL_ERROR_SSL: |
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if (errno == EAGAIN) |
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break; |
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default: |
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retlen = errno = 0; /* either an SSL-specific error or EOF */ |
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} |
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} |
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} |
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else |
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#endif |
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retlen = send(to->connection->fd.fd, first->data + to->connection->buf_sendq.pos, first->size - to->connection->buf_sendq.pos, 0); |
213 |
|
214 |
if (retlen <= 0) |
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break; |
216 |
|
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dbuf_delete(&to->connection->buf_sendq, retlen); |
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|
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/* We have some data written .. update counters */ |
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to->connection->send.bytes += retlen; |
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me.connection->send.bytes += retlen; |
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} while (dbuf_length(&to->connection->buf_sendq)); |
223 |
|
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if (retlen < 0 && ignoreErrno(errno)) |
225 |
{ |
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AddFlag(to, FLAGS_BLOCKED); |
227 |
|
228 |
/* we have a non-fatal error, reschedule a write */ |
229 |
comm_setselect(&to->connection->fd, COMM_SELECT_WRITE, |
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sendq_unblocked, to, 0); |
231 |
} |
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else if (retlen <= 0) |
233 |
{ |
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dead_link_on_write(to, errno); |
235 |
return; |
236 |
} |
237 |
} |
238 |
} |
239 |
|
240 |
/* send_queued_all() |
241 |
* |
242 |
* input - NONE |
243 |
* output - NONE |
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* side effects - try to flush sendq of each client |
245 |
*/ |
246 |
void |
247 |
send_queued_all(void) |
248 |
{ |
249 |
dlink_node *node = NULL; |
250 |
|
251 |
/* Servers are processed first, mainly because this can generate |
252 |
* a notice to opers, which is to be delivered by this function. |
253 |
*/ |
254 |
DLINK_FOREACH(node, local_server_list.head) |
255 |
send_queued_write(node->data); |
256 |
|
257 |
DLINK_FOREACH(node, unknown_list.head) |
258 |
send_queued_write(node->data); |
259 |
|
260 |
DLINK_FOREACH(node, local_client_list.head) |
261 |
send_queued_write(node->data); |
262 |
|
263 |
/* NOTE: This can still put clients on aborted_list; unfortunately, |
264 |
* exit_aborted_clients takes precedence over send_queued_all, |
265 |
* because exiting clients can generate server/oper traffic. |
266 |
* The easiest approach is dealing with aborted clients in the next I/O lap. |
267 |
* -adx |
268 |
*/ |
269 |
} |
270 |
|
271 |
/* sendto_one() |
272 |
* |
273 |
* inputs - pointer to destination client |
274 |
* - var args message |
275 |
* output - NONE |
276 |
* side effects - send message to single client |
277 |
*/ |
278 |
void |
279 |
sendto_one(struct Client *to, const char *pattern, ...) |
280 |
{ |
281 |
va_list args; |
282 |
struct dbuf_block *buffer = NULL; |
283 |
|
284 |
if (IsDead(to->from)) |
285 |
return; /* This socket has already been marked as dead */ |
286 |
|
287 |
buffer = dbuf_alloc(); |
288 |
|
289 |
va_start(args, pattern); |
290 |
send_format(buffer, pattern, args); |
291 |
va_end(args); |
292 |
|
293 |
send_message(to->from, buffer); |
294 |
|
295 |
dbuf_ref_free(buffer); |
296 |
} |
297 |
|
298 |
void |
299 |
sendto_one_numeric(struct Client *to, struct Client *from, enum irc_numerics numeric, ...) |
300 |
{ |
301 |
struct dbuf_block *buffer = NULL; |
302 |
const char *dest = NULL, *numstr = NULL; |
303 |
va_list args; |
304 |
|
305 |
if (IsDead(to->from)) |
306 |
return; |
307 |
|
308 |
dest = ID_or_name(to, to); |
309 |
|
310 |
if (EmptyString(dest)) |
311 |
dest = "*"; |
312 |
|
313 |
buffer = dbuf_alloc(); |
314 |
|
315 |
dbuf_put_fmt(buffer, ":%s %03d %s ", ID_or_name(from, to), numeric & ~SND_EXPLICIT, dest); |
316 |
|
317 |
va_start(args, numeric); |
318 |
|
319 |
if (numeric & SND_EXPLICIT) |
320 |
numstr = va_arg(args, const char *); |
321 |
else |
322 |
numstr = numeric_form(numeric); |
323 |
|
324 |
send_format(buffer, numstr, args); |
325 |
va_end(args); |
326 |
|
327 |
send_message(to->from, buffer); |
328 |
|
329 |
dbuf_ref_free(buffer); |
330 |
} |
331 |
|
332 |
void |
333 |
sendto_one_notice(struct Client *to, struct Client *from, const char *pattern, ...) |
334 |
{ |
335 |
struct dbuf_block *buffer = NULL; |
336 |
const char *dest = NULL; |
337 |
va_list args; |
338 |
|
339 |
if (IsDead(to->from)) |
340 |
return; |
341 |
|
342 |
dest = ID_or_name(to, to); |
343 |
|
344 |
if (EmptyString(dest)) |
345 |
dest = "*"; |
346 |
|
347 |
buffer = dbuf_alloc(); |
348 |
|
349 |
dbuf_put_fmt(buffer, ":%s NOTICE %s ", ID_or_name(from, to), dest); |
350 |
|
351 |
va_start(args, pattern); |
352 |
send_format(buffer, pattern, args); |
353 |
va_end(args); |
354 |
|
355 |
send_message(to->from, buffer); |
356 |
|
357 |
dbuf_ref_free(buffer); |
358 |
} |
359 |
|
360 |
/* sendto_channel_butone() |
361 |
* |
362 |
* inputs - pointer to client(server) to NOT send message to |
363 |
* - pointer to client that is sending this message |
364 |
* - pointer to channel being sent to |
365 |
* - vargs message |
366 |
* output - NONE |
367 |
* side effects - message as given is sent to given channel members. |
368 |
* |
369 |
* WARNING - +D clients are ignored |
370 |
*/ |
371 |
void |
372 |
sendto_channel_butone(struct Client *one, struct Client *from, |
373 |
struct Channel *chptr, unsigned int type, |
374 |
const char *pattern, ...) |
375 |
{ |
376 |
va_list alocal, aremote; |
377 |
struct dbuf_block *local_buf, *remote_buf; |
378 |
dlink_node *node = NULL; |
379 |
|
380 |
local_buf = dbuf_alloc(), remote_buf = dbuf_alloc(); |
381 |
|
382 |
if (IsClient(from)) |
383 |
dbuf_put_fmt(local_buf, ":%s!%s@%s ", from->name, from->username, from->host); |
384 |
else |
385 |
dbuf_put_fmt(local_buf, ":%s ", from->name); |
386 |
|
387 |
dbuf_put_fmt(remote_buf, ":%s ", from->id); |
388 |
|
389 |
va_start(alocal, pattern); |
390 |
va_start(aremote, pattern); |
391 |
send_format(local_buf, pattern, alocal); |
392 |
send_format(remote_buf, pattern, aremote); |
393 |
|
394 |
va_end(aremote); |
395 |
va_end(alocal); |
396 |
|
397 |
++current_serial; |
398 |
|
399 |
DLINK_FOREACH(node, chptr->members.head) |
400 |
{ |
401 |
struct Membership *member = node->data; |
402 |
struct Client *target_p = member->client_p; |
403 |
|
404 |
assert(IsClient(target_p)); |
405 |
|
406 |
if (IsDefunct(target_p) || HasUMode(target_p, UMODE_DEAF) || |
407 |
(one && target_p->from == one->from)) |
408 |
continue; |
409 |
|
410 |
if (type && (member->flags & type) == 0) |
411 |
continue; |
412 |
|
413 |
if (MyConnect(target_p)) |
414 |
send_message(target_p, local_buf); |
415 |
else if (target_p->from->connection->serial != current_serial) |
416 |
send_message_remote(target_p->from, from, remote_buf); |
417 |
|
418 |
target_p->from->connection->serial = current_serial; |
419 |
} |
420 |
|
421 |
dbuf_ref_free(local_buf); |
422 |
dbuf_ref_free(remote_buf); |
423 |
} |
424 |
|
425 |
/* sendto_server() |
426 |
* |
427 |
* inputs - pointer to client to NOT send to |
428 |
* - pointer to channel |
429 |
* - caps or'd together which must ALL be present |
430 |
* - caps or'd together which must ALL NOT be present |
431 |
* - printf style format string |
432 |
* - args to format string |
433 |
* output - NONE |
434 |
* side effects - Send a message to all connected servers, except the |
435 |
* client 'one' (if non-NULL), as long as the servers |
436 |
* support ALL capabs in 'caps', and NO capabs in 'nocaps'. |
437 |
* |
438 |
* This function was written in an attempt to merge together the other |
439 |
* billion sendto_*serv*() functions, which sprung up with capabs, |
440 |
* lazylinks, uids, etc. |
441 |
* -davidt |
442 |
*/ |
443 |
void |
444 |
sendto_server(struct Client *one, |
445 |
const unsigned int caps, |
446 |
const unsigned int nocaps, |
447 |
const char *format, ...) |
448 |
{ |
449 |
va_list args; |
450 |
dlink_node *node = NULL; |
451 |
struct dbuf_block *buffer = dbuf_alloc(); |
452 |
|
453 |
va_start(args, format); |
454 |
send_format(buffer, format, args); |
455 |
va_end(args); |
456 |
|
457 |
DLINK_FOREACH(node, local_server_list.head) |
458 |
{ |
459 |
struct Client *client_p = node->data; |
460 |
|
461 |
/* If dead already skip */ |
462 |
if (IsDead(client_p)) |
463 |
continue; |
464 |
|
465 |
/* check against 'one' */ |
466 |
if (one && (client_p == one->from)) |
467 |
continue; |
468 |
|
469 |
/* check we have required capabs */ |
470 |
if ((client_p->connection->caps & caps) != caps) |
471 |
continue; |
472 |
|
473 |
/* check we don't have any forbidden capabs */ |
474 |
if ((client_p->connection->caps & nocaps)) |
475 |
continue; |
476 |
|
477 |
send_message(client_p, buffer); |
478 |
} |
479 |
|
480 |
dbuf_ref_free(buffer); |
481 |
} |
482 |
|
483 |
/* sendto_common_channels_local() |
484 |
* |
485 |
* inputs - pointer to client |
486 |
* - pattern to send |
487 |
* output - NONE |
488 |
* side effects - Sends a message to all people on local server who are |
489 |
* in same channel with user. |
490 |
* used by m_nick.c and exit_one_client. |
491 |
*/ |
492 |
void |
493 |
sendto_common_channels_local(struct Client *user, int touser, unsigned int cap, |
494 |
const char *pattern, ...) |
495 |
{ |
496 |
va_list args; |
497 |
dlink_node *uptr; |
498 |
dlink_node *cptr; |
499 |
struct Channel *chptr; |
500 |
struct Membership *member; |
501 |
struct Client *target_p; |
502 |
struct dbuf_block *buffer = dbuf_alloc(); |
503 |
|
504 |
va_start(args, pattern); |
505 |
send_format(buffer, pattern, args); |
506 |
va_end(args); |
507 |
|
508 |
++current_serial; |
509 |
|
510 |
DLINK_FOREACH(cptr, user->channel.head) |
511 |
{ |
512 |
chptr = ((struct Membership *)cptr->data)->chptr; |
513 |
|
514 |
DLINK_FOREACH(uptr, chptr->locmembers.head) |
515 |
{ |
516 |
member = uptr->data; |
517 |
target_p = member->client_p; |
518 |
|
519 |
if (target_p == user || IsDefunct(target_p) || |
520 |
target_p->connection->serial == current_serial) |
521 |
continue; |
522 |
|
523 |
if (HasCap(target_p, cap) != cap) |
524 |
continue; |
525 |
|
526 |
target_p->connection->serial = current_serial; |
527 |
send_message(target_p, buffer); |
528 |
} |
529 |
} |
530 |
|
531 |
if (touser && MyConnect(user) && !IsDead(user) && |
532 |
user->connection->serial != current_serial) |
533 |
if (HasCap(user, cap) == cap) |
534 |
send_message(user, buffer); |
535 |
|
536 |
dbuf_ref_free(buffer); |
537 |
} |
538 |
|
539 |
/* sendto_channel_local() |
540 |
* |
541 |
* inputs - member status mask, e.g. CHFL_CHANOP | CHFL_VOICE |
542 |
* - pointer to channel to send to |
543 |
* - var args pattern |
544 |
* output - NONE |
545 |
* side effects - Send a message to all members of a channel that are |
546 |
* locally connected to this server. |
547 |
*/ |
548 |
void |
549 |
sendto_channel_local(unsigned int type, struct Channel *chptr, |
550 |
const char *pattern, ...) |
551 |
{ |
552 |
va_list args; |
553 |
dlink_node *node = NULL; |
554 |
struct dbuf_block *buffer = dbuf_alloc(); |
555 |
|
556 |
va_start(args, pattern); |
557 |
send_format(buffer, pattern, args); |
558 |
va_end(args); |
559 |
|
560 |
DLINK_FOREACH(node, chptr->locmembers.head) |
561 |
{ |
562 |
struct Membership *member = node->data; |
563 |
struct Client *target_p = member->client_p; |
564 |
|
565 |
if (type && (member->flags & type) == 0) |
566 |
continue; |
567 |
|
568 |
if (IsDefunct(target_p)) |
569 |
continue; |
570 |
|
571 |
send_message(target_p, buffer); |
572 |
} |
573 |
|
574 |
dbuf_ref_free(buffer); |
575 |
} |
576 |
|
577 |
/* sendto_channel_local_butone() |
578 |
* |
579 |
* inputs - pointer to client to NOT send message to |
580 |
* - member status mask, e.g. CHFL_CHANOP | CHFL_VOICE |
581 |
* - pointer to channel to send to |
582 |
* - var args pattern |
583 |
* output - NONE |
584 |
* side effects - Send a message to all members of a channel that are |
585 |
* locally connected to this server except one. |
586 |
* |
587 |
* WARNING - +D clients are omitted |
588 |
*/ |
589 |
void |
590 |
sendto_channel_local_butone(struct Client *one, unsigned int poscap, unsigned int negcap, |
591 |
struct Channel *chptr, const char *pattern, ...) |
592 |
{ |
593 |
va_list args; |
594 |
dlink_node *node = NULL; |
595 |
struct dbuf_block *buffer = dbuf_alloc(); |
596 |
|
597 |
va_start(args, pattern); |
598 |
send_format(buffer, pattern, args); |
599 |
va_end(args); |
600 |
|
601 |
DLINK_FOREACH(node, chptr->locmembers.head) |
602 |
{ |
603 |
struct Membership *member = node->data; |
604 |
struct Client *target_p = member->client_p; |
605 |
|
606 |
if (one && target_p == one->from) |
607 |
continue; |
608 |
|
609 |
if (IsDefunct(target_p)) |
610 |
continue; |
611 |
|
612 |
if (poscap && HasCap(target_p, poscap) != poscap) |
613 |
continue; |
614 |
|
615 |
if (negcap && HasCap(target_p, negcap)) |
616 |
continue; |
617 |
|
618 |
send_message(target_p, buffer); |
619 |
} |
620 |
|
621 |
dbuf_ref_free(buffer); |
622 |
} |
623 |
|
624 |
/* |
625 |
** match_it() and sendto_match_butone() ARE only used |
626 |
** to send a msg to all ppl on servers/hosts that match a specified mask |
627 |
** (used for enhanced PRIVMSGs) for opers |
628 |
** |
629 |
** addition -- Armin, 8jun90 (gruner@informatik.tu-muenchen.de) |
630 |
** |
631 |
*/ |
632 |
|
633 |
/* match_it() |
634 |
* |
635 |
* inputs - client pointer to match on |
636 |
* - actual mask to match |
637 |
* - what to match on, HOST or SERVER |
638 |
* output - 1 or 0 if match or not |
639 |
* side effects - NONE |
640 |
*/ |
641 |
static int |
642 |
match_it(const struct Client *one, const char *mask, unsigned int what) |
643 |
{ |
644 |
if (what == MATCH_HOST) |
645 |
return !match(mask, one->host); |
646 |
|
647 |
return !match(mask, one->servptr->name); |
648 |
} |
649 |
|
650 |
/* sendto_match_butone() |
651 |
* |
652 |
* Send to all clients which match the mask in a way defined on 'what'; |
653 |
* either by user hostname or user servername. |
654 |
* |
655 |
* ugh. ONLY used by m_message.c to send an "oper magic" message. ugh. |
656 |
*/ |
657 |
void |
658 |
sendto_match_butone(struct Client *one, struct Client *from, const char *mask, |
659 |
int what, const char *pattern, ...) |
660 |
{ |
661 |
va_list alocal, aremote; |
662 |
dlink_node *node = NULL; |
663 |
struct dbuf_block *local_buf, *remote_buf; |
664 |
|
665 |
local_buf = dbuf_alloc(), remote_buf = dbuf_alloc(); |
666 |
|
667 |
dbuf_put_fmt(local_buf, ":%s!%s@%s ", from->name, from->username, from->host); |
668 |
dbuf_put_fmt(remote_buf, ":%s ", from->id); |
669 |
|
670 |
va_start(alocal, pattern); |
671 |
va_start(aremote, pattern); |
672 |
send_format(local_buf, pattern, alocal); |
673 |
send_format(remote_buf, pattern, aremote); |
674 |
va_end(aremote); |
675 |
va_end(alocal); |
676 |
|
677 |
/* scan the local clients */ |
678 |
DLINK_FOREACH(node, local_client_list.head) |
679 |
{ |
680 |
struct Client *client_p = node->data; |
681 |
|
682 |
if ((!one || client_p != one->from) && !IsDefunct(client_p) && |
683 |
match_it(client_p, mask, what)) |
684 |
send_message(client_p, local_buf); |
685 |
} |
686 |
|
687 |
/* Now scan servers */ |
688 |
DLINK_FOREACH(node, local_server_list.head) |
689 |
{ |
690 |
struct Client *client_p = node->data; |
691 |
|
692 |
/* |
693 |
* The old code looped through every client on the |
694 |
* network for each server to check if the |
695 |
* server (client_p) has at least 1 client matching |
696 |
* the mask, using something like: |
697 |
* |
698 |
* for (target_p = GlobalClientList; target_p; target_p = target_p->next) |
699 |
* if (IsRegisteredUser(target_p) && |
700 |
* match_it(target_p, mask, what) && |
701 |
* (target_p->from == client_p)) |
702 |
* vsendto_prefix_one(client_p, from, pattern, args); |
703 |
* |
704 |
* That way, we wouldn't send the message to |
705 |
* a server who didn't have a matching client. |
706 |
* However, on a network such as EFNet, that |
707 |
* code would have looped through about 50 |
708 |
* servers, and in each loop, loop through |
709 |
* about 50k clients as well, calling match() |
710 |
* in each nested loop. That is a very bad |
711 |
* thing cpu wise - just send the message |
712 |
* to every connected server and let that |
713 |
* server deal with it. |
714 |
* -wnder |
715 |
*/ |
716 |
if ((!one || client_p != one->from) && !IsDefunct(client_p)) |
717 |
send_message_remote(client_p, from, remote_buf); |
718 |
} |
719 |
|
720 |
dbuf_ref_free(local_buf); |
721 |
dbuf_ref_free(remote_buf); |
722 |
} |
723 |
|
724 |
/* sendto_match_servs() |
725 |
* |
726 |
* inputs - source client |
727 |
* - mask to send to |
728 |
* - capab needed |
729 |
* - data |
730 |
* outputs - none |
731 |
* side effects - data sent to servers matching with capab |
732 |
*/ |
733 |
void |
734 |
sendto_match_servs(struct Client *source_p, const char *mask, unsigned int cap, |
735 |
const char *pattern, ...) |
736 |
{ |
737 |
va_list args; |
738 |
dlink_node *node = NULL; |
739 |
struct dbuf_block *buffer = dbuf_alloc(); |
740 |
|
741 |
dbuf_put_fmt(buffer, ":%s ", source_p->id); |
742 |
va_start(args, pattern); |
743 |
send_format(buffer, pattern, args); |
744 |
va_end(args); |
745 |
|
746 |
++current_serial; |
747 |
|
748 |
DLINK_FOREACH(node, global_server_list.head) |
749 |
{ |
750 |
struct Client *target_p = node->data; |
751 |
|
752 |
/* Do not attempt to send to ourselves, or the source */ |
753 |
if (IsMe(target_p) || target_p->from == source_p->from) |
754 |
continue; |
755 |
|
756 |
if (target_p->from->connection->serial == current_serial) |
757 |
continue; |
758 |
|
759 |
if (match(mask, target_p->name)) |
760 |
continue; |
761 |
|
762 |
/* |
763 |
* If we set the serial here, then we'll never do a |
764 |
* match() again, if !IsCapable() |
765 |
*/ |
766 |
target_p->from->connection->serial = current_serial; |
767 |
|
768 |
if (!IsCapable(target_p->from, cap)) |
769 |
continue; |
770 |
|
771 |
send_message_remote(target_p->from, source_p, buffer); |
772 |
} |
773 |
|
774 |
dbuf_ref_free(buffer); |
775 |
} |
776 |
|
777 |
/* sendto_anywhere() |
778 |
* |
779 |
* inputs - pointer to dest client |
780 |
* - pointer to from client |
781 |
* - varags |
782 |
* output - NONE |
783 |
* side effects - less efficient than sendto_remote and sendto_one |
784 |
* but useful when one does not know where target "lives" |
785 |
*/ |
786 |
void |
787 |
sendto_anywhere(struct Client *to, struct Client *from, |
788 |
const char *command, |
789 |
const char *pattern, ...) |
790 |
{ |
791 |
va_list args; |
792 |
struct dbuf_block *buffer = NULL; |
793 |
|
794 |
if (IsDead(to->from)) |
795 |
return; |
796 |
|
797 |
buffer = dbuf_alloc(); |
798 |
|
799 |
if (MyClient(to) && IsClient(from)) |
800 |
dbuf_put_fmt(buffer, ":%s!%s@%s %s %s ", from->name, from->username, |
801 |
from->host, command, to->name); |
802 |
else |
803 |
dbuf_put_fmt(buffer, ":%s %s %s ", ID_or_name(from, to), |
804 |
command, ID_or_name(to, to)); |
805 |
|
806 |
va_start(args, pattern); |
807 |
send_format(buffer, pattern, args); |
808 |
va_end(args); |
809 |
|
810 |
if (MyConnect(to)) |
811 |
send_message(to, buffer); |
812 |
else |
813 |
send_message_remote(to->from, from, buffer); |
814 |
|
815 |
dbuf_ref_free(buffer); |
816 |
} |
817 |
|
818 |
/* sendto_realops_flags() |
819 |
* |
820 |
* inputs - flag types of messages to show to real opers |
821 |
* - flag indicating opers/admins |
822 |
* - var args input message |
823 |
* output - NONE |
824 |
* side effects - Send to *local* ops only but NOT +s nonopers. |
825 |
*/ |
826 |
void |
827 |
sendto_realops_flags(unsigned int flags, int level, int type, const char *pattern, ...) |
828 |
{ |
829 |
const char *ntype = NULL; |
830 |
dlink_node *node = NULL; |
831 |
char nbuf[IRCD_BUFSIZE] = ""; |
832 |
va_list args; |
833 |
|
834 |
va_start(args, pattern); |
835 |
vsnprintf(nbuf, sizeof(nbuf), pattern, args); |
836 |
va_end(args); |
837 |
|
838 |
switch (type) |
839 |
{ |
840 |
case SEND_NOTICE: |
841 |
ntype = "Notice"; |
842 |
break; |
843 |
case SEND_GLOBAL: |
844 |
ntype = "Global"; |
845 |
break; |
846 |
case SEND_LOCOPS: |
847 |
ntype = "LocOps"; |
848 |
break; |
849 |
default: |
850 |
assert(0); |
851 |
} |
852 |
|
853 |
DLINK_FOREACH(node, oper_list.head) |
854 |
{ |
855 |
struct Client *client_p = node->data; |
856 |
assert(HasUMode(client_p, UMODE_OPER)); |
857 |
|
858 |
/* |
859 |
* If we're sending it to opers and they're an admin, skip. |
860 |
* If we're sending it to admins, and they're not, skip. |
861 |
*/ |
862 |
if (((level == L_ADMIN) && !HasUMode(client_p, UMODE_ADMIN)) || |
863 |
((level == L_OPER) && HasUMode(client_p, UMODE_ADMIN))) |
864 |
continue; |
865 |
|
866 |
if (HasUMode(client_p, flags)) |
867 |
sendto_one(client_p, ":%s NOTICE %s :*** %s -- %s", |
868 |
me.name, client_p->name, ntype, nbuf); |
869 |
} |
870 |
} |
871 |
|
872 |
/* ts_warn() |
873 |
* |
874 |
* inputs - var args message |
875 |
* output - NONE |
876 |
* side effects - Call sendto_realops_flags, with some flood checking |
877 |
* (at most 5 warnings every 5 seconds) |
878 |
*/ |
879 |
void |
880 |
sendto_realops_flags_ratelimited(time_t *rate, const char *pattern, ...) |
881 |
{ |
882 |
va_list args; |
883 |
char buffer[IRCD_BUFSIZE] = ""; |
884 |
|
885 |
if ((CurrentTime - *rate) < 20) |
886 |
return; |
887 |
|
888 |
*rate = CurrentTime; |
889 |
|
890 |
va_start(args, pattern); |
891 |
vsnprintf(buffer, sizeof(buffer), pattern, args); |
892 |
va_end(args); |
893 |
|
894 |
sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE, "%s", buffer); |
895 |
ilog(LOG_TYPE_IRCD, "%s", buffer); |
896 |
} |
897 |
|
898 |
/* sendto_wallops_flags() |
899 |
* |
900 |
* inputs - flag types of messages to show to real opers |
901 |
* - client sending request |
902 |
* - var args input message |
903 |
* output - NONE |
904 |
* side effects - Send a wallops to local opers |
905 |
*/ |
906 |
void |
907 |
sendto_wallops_flags(unsigned int flags, struct Client *source_p, |
908 |
const char *pattern, ...) |
909 |
{ |
910 |
dlink_node *node = NULL; |
911 |
va_list args; |
912 |
struct dbuf_block *buffer = dbuf_alloc(); |
913 |
|
914 |
if (IsClient(source_p)) |
915 |
dbuf_put_fmt(buffer, ":%s!%s@%s WALLOPS :", source_p->name, source_p->username, source_p->host); |
916 |
else |
917 |
dbuf_put_fmt(buffer, ":%s WALLOPS :", source_p->name); |
918 |
|
919 |
va_start(args, pattern); |
920 |
send_format(buffer, pattern, args); |
921 |
va_end(args); |
922 |
|
923 |
DLINK_FOREACH(node, oper_list.head) |
924 |
{ |
925 |
struct Client *client_p = node->data; |
926 |
assert(client_p->umodes & UMODE_OPER); |
927 |
|
928 |
if (HasUMode(client_p, flags) && !IsDefunct(client_p)) |
929 |
send_message(client_p, buffer); |
930 |
} |
931 |
|
932 |
dbuf_ref_free(buffer); |
933 |
} |