ircu2/ircd/ircd_reply.c

119 lines
3.2 KiB
C

/*
* IRC - Internet Relay Chat, ircd/m_proto.c
* Copyright (C) 1990 Jarkko Oikarinen and
* University of Oulu, Computing Center
*
* See file AUTHORS in IRC package for additional names of
* the programmers.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 1, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/** @file
* @brief Implementation of functions to send common replies to users.
* @version $Id: ircd_reply.c 1762 2007-02-04 04:18:31Z entrope $
*/
#include "config.h"
#include "ircd_reply.h"
#include "client.h"
#include "ircd.h"
#include "ircd_log.h"
#include "ircd_snprintf.h"
#include "msg.h"
#include "msgq.h"
#include "numeric.h"
#include "s_conf.h"
#include "s_debug.h"
#include "send.h"
/* #include <assert.h> -- Now using assert in ircd_log.h */
#include <string.h>
/** Report a protocol violation warning to anyone listening. This can
* be easily used to clean up the last couple of parts of the code.
* @param[in] cptr Client that violated the protocol.
* @param[in] pattern Description of how the protocol was violated.
* @return Zero.
*/
int protocol_violation(struct Client* cptr, const char* pattern, ...)
{
struct VarData vd;
char message[BUFSIZE];
assert(pattern);
assert(cptr);
vd.vd_format = pattern;
va_start(vd.vd_args, pattern);
ircd_snprintf(NULL, message, sizeof(message),
"Protocol Violation from %s: %v", cli_name(cptr), &vd);
va_end(vd.vd_args);
sendwallto_group_butone(&me, WALL_DESYNCH, NULL, "%s", message);
return 0;
}
/** Inform a client that they need to provide more parameters.
* @param[in] cptr Taciturn client.
* @param[in] cmd Command name.
* @return Zero.
*/
int need_more_params(struct Client* cptr, const char* cmd)
{
send_reply(cptr, ERR_NEEDMOREPARAMS, cmd);
return 0;
}
/** Send a generic reply to a user.
* @param[in] to Client that wants a reply.
* @param[in] reply Numeric of message to send.
* @return Zero.
*/
int send_reply(struct Client *to, int reply, ...)
{
struct VarData vd;
struct MsgBuf *mb;
const struct Numeric *num;
assert(0 != to);
assert(0 != reply);
num = get_error_numeric(reply & ~SND_EXPLICIT); /* get reply... */
va_start(vd.vd_args, reply);
if (reply & SND_EXPLICIT) /* get right pattern */
vd.vd_format = (const char *) va_arg(vd.vd_args, char *);
else
vd.vd_format = num->format;
assert(0 != vd.vd_format);
/* build buffer */
mb = msgq_make(cli_from(to), "%:#C %s %C %v", &me, num->str, to, &vd);
va_end(vd.vd_args);
/* send it to the user */
send_buffer(to, mb, 0);
msgq_clean(mb);
return 0; /* convenience return */
}