angiosperm/modules/m_accept.c
Elizabeth Myers 3c7d6fcce7 Message handlers should return void.
Also fix up some return values and stuff to use bool (or void if
nothing). I just did it whilst I was here.

According to jilles, the return value used to signify whether or not the
client had exited. This was error-prone and was fixed a long, long time
ago, but the return value was left int for historical reasons.

Since the return type is not used (and has no clear use case anyway),
it's safe to just get rid of it.
2016-03-09 01:37:03 -06:00

260 lines
6.3 KiB
C

/*
* ircd-ratbox: A slightly useful ircd.
* m_accept.c: Allows a user to talk to a +g user.
*
* Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
* Copyright (C) 1996-2002 Hybrid Development Team
* Copyright (C) 2002-2005 ircd-ratbox development team
*
* 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 2 of the License, 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
#include "stdinc.h"
#include "client.h"
#include "hash.h"
#include "ircd.h"
#include "numeric.h"
#include "s_conf.h"
#include "s_serv.h"
#include "send.h"
#include "msg.h"
#include "parse.h"
#include "modules.h"
static const char accept_desc[] =
"Provides the ACCEPT command for use with Caller ID/user mode +g";
static void m_accept(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
static void build_nicklist(struct Client *, char *, char *, const char *);
static void add_accept(struct Client *, struct Client *);
static void list_accepts(struct Client *);
struct Message accept_msgtab = {
"ACCEPT", 0, 0, 0, 0,
{mg_unreg, {m_accept, 2}, mg_ignore, mg_ignore, mg_ignore, {m_accept, 2}}
};
mapi_clist_av1 accept_clist[] = {
&accept_msgtab, NULL
};
DECLARE_MODULE_AV2(accept, NULL, NULL, accept_clist, NULL, NULL, NULL, NULL, accept_desc);
/*
* m_accept - ACCEPT command handler
* parv[1] = servername
*/
static void
m_accept(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
char *nick;
char *p = NULL;
static char addbuf[BUFSIZE];
static char delbuf[BUFSIZE];
struct Client *target_p;
int accept_num;
if(*parv[1] == '*')
{
list_accepts(source_p);
return;
}
build_nicklist(source_p, addbuf, delbuf, parv[1]);
/* parse the delete list */
for (nick = rb_strtok_r(delbuf, ",", &p); nick != NULL; nick = rb_strtok_r(NULL, ",", &p))
{
/* shouldnt happen, but lets be paranoid */
if((target_p = find_named_person(nick)) == NULL)
{
sendto_one_numeric(source_p, ERR_NOSUCHNICK,
form_str(ERR_NOSUCHNICK), nick);
continue;
}
/* user isnt on clients accept list */
if(!accept_message(target_p, source_p))
{
sendto_one(source_p, form_str(ERR_ACCEPTNOT),
me.name, source_p->name, target_p->name);
continue;
}
rb_dlinkFindDestroy(target_p, &source_p->localClient->allow_list);
rb_dlinkFindDestroy(source_p, &target_p->on_allow_list);
}
/* get the number of accepts they have */
accept_num = rb_dlink_list_length(&source_p->localClient->allow_list);
/* parse the add list */
for (nick = rb_strtok_r(addbuf, ",", &p); nick; nick = rb_strtok_r(NULL, ",", &p), accept_num++)
{
/* shouldnt happen, but lets be paranoid */
if((target_p = find_named_person(nick)) == NULL)
{
sendto_one_numeric(source_p, ERR_NOSUCHNICK,
form_str(ERR_NOSUCHNICK), nick);
continue;
}
/* user is already on clients accept list */
if(accept_message(target_p, source_p))
{
sendto_one(source_p, form_str(ERR_ACCEPTEXIST),
me.name, source_p->name, target_p->name);
continue;
}
if(accept_num >= ConfigFileEntry.max_accept)
{
sendto_one(source_p, form_str(ERR_ACCEPTFULL), me.name, source_p->name);
return;
}
/* why is this here? */
/* del_from accept(target_p, source_p); */
add_accept(source_p, target_p);
}
}
/*
* build_nicklist()
*
* input - pointer to client
* - pointer to addbuffer
* - pointer to remove buffer
* - pointer to list of nicks
* output -
* side effects - addbuf/delbuf are modified to give valid nicks
*/
static void
build_nicklist(struct Client *source_p, char *addbuf, char *delbuf, const char *nicks)
{
char *name;
char *p;
int lenadd;
int lendel;
int del;
char *n = LOCAL_COPY(nicks);
*addbuf = *delbuf = '\0';
del = lenadd = lendel = 0;
/* build list of clients to add into addbuf, clients to remove in delbuf */
for (name = rb_strtok_r(n, ",", &p); name; name = rb_strtok_r(NULL, ",", &p), del = 0)
{
if(*name == '-')
{
del = 1;
name++;
}
if(find_named_person(name) == NULL)
{
sendto_one_numeric(source_p, ERR_NOSUCHNICK,
form_str(ERR_NOSUCHNICK), name);
continue;
}
/* we're deleting a client */
if(del)
{
if(*delbuf)
(void) strcat(delbuf, ",");
(void) strncat(delbuf, name, BUFSIZE - lendel - 1);
lendel += strlen(name) + 1;
}
/* adding a client */
else
{
if(*addbuf)
(void) strcat(addbuf, ",");
(void) strncat(addbuf, name, BUFSIZE - lenadd - 1);
lenadd += strlen(name) + 1;
}
}
}
/*
* add_accept()
*
* input - pointer to clients accept list to add to
* - pointer to client to add
* output - none
* side effects - target is added to clients list
*/
static void
add_accept(struct Client *source_p, struct Client *target_p)
{
rb_dlinkAddAlloc(target_p, &source_p->localClient->allow_list);
rb_dlinkAddAlloc(source_p, &target_p->on_allow_list);
}
/*
* list_accepts()
*
* input - pointer to client
* output - none
* side effects - print accept list to client
*/
static void
list_accepts(struct Client *source_p)
{
rb_dlink_node *ptr;
struct Client *target_p;
char nicks[BUFSIZE];
int len = 0;
int len2 = 0;
int count = 0;
*nicks = '\0';
len2 = strlen(source_p->name) + 10;
RB_DLINK_FOREACH(ptr, source_p->localClient->allow_list.head)
{
target_p = ptr->data;
if(target_p)
{
if((len + strlen(target_p->name) + len2 > BUFSIZE) || count > 14)
{
sendto_one(source_p, form_str(RPL_ACCEPTLIST),
me.name, source_p->name, nicks);
len = count = 0;
*nicks = '\0';
}
len += snprintf(nicks + len, sizeof(nicks) - len, "%s ", target_p->name);
count++;
}
}
if(*nicks)
sendto_one(source_p, form_str(RPL_ACCEPTLIST),
me.name, source_p->name, nicks);
sendto_one(source_p, form_str(RPL_ENDOFACCEPT),
me.name, source_p->name);
}