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Code Issues Releases Wiki Activity

Limit channel invite and ban lists to 50 entries

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- New function Lists_Count().
 - New limit #define MAX_HNDL_CHANNEL_LISTS = 50.
 - New numeric #define ERR_LISTFULL_MSG(478).
 - Adjust numeric RPL_ISUPPORT2_MSG(005) accordingly ("MAXLIST")
This commit is contained in:
Alexander Barton 2012-01-16 00:26:12 +01:00
parent 1afbf71236
commit 2f7d0c0839
6 changed files with 36 additions and 2 deletions
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3
src/ngircd/defines.h
View File

@ -181,6 +181,9 @@
/** Max. number of LIST replies. */
#define MAX_RPL_LIST 100
/** Max. number of elemets allowed in channel invite and ban lists. */
#define MAX_HNDL_CHANNEL_LISTS 50
/** Max. number of channel modes with arguments per MODE command. */
#define MAX_HNDL_MODES_ARG 5

3
src/ngircd/irc-info.c
View File

@ -1583,7 +1583,8 @@ IRC_Send_ISUPPORT(CLIENT * Client)
return IRC_WriteStrClient(Client, RPL_ISUPPORT2_MSG, Client_ID(Client),
CHANNEL_NAME_LEN - 1, Conf_MaxNickLength - 1,
COMMAND_LEN - 23, CLIENT_AWAY_LEN - 1,
COMMAND_LEN - 113, MAX_HNDL_MODES_ARG);
COMMAND_LEN - 113, MAX_HNDL_MODES_ARG,
MAX_HNDL_CHANNEL_LISTS);
} /* IRC_Send_ISUPPORT */

6
src/ngircd/irc-mode.c
View File

@ -863,6 +863,12 @@ Add_Ban_Invite(char what, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel,
if (Lists_CheckDupeMask(list, mask))
return CONNECTED;
if (Client_Type(Client) == CLIENT_USER &&
Lists_Count(list) >= MAX_HNDL_CHANNEL_LISTS)
return IRC_WriteStrClient(Client, ERR_LISTFULL_MSG,
Client_ID(Client),
Channel_Name(Channel), mask,
MAX_HNDL_CHANNEL_LISTS);
if (what == 'I') {
if (!Channel_AddInvite(Channel, mask, false))

22
src/ngircd/lists.c
View File

@ -385,4 +385,26 @@ Lists_Expire(struct list_head *h, const char *ListName)
}
}
/**
* Return the number of entries of a list.
*
* @param h List head.
* @return Number of items.
*/
GLOBAL unsigned long
Lists_Count(struct list_head *h)
{
struct list_elem *e;
unsigned long count = 0;
assert(h != NULL);
e = h->first;
while (e) {
count++;
e = e->next;
}
return count;
}
/* -eof- */

1
src/ngircd/lists.h
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@ -36,6 +36,7 @@ GLOBAL struct list_elem *Lists_CheckDupeMask PARAMS((const struct list_head *hea
GLOBAL bool Lists_Add PARAMS((struct list_head *h, const char *Mask,
time_t ValidUntil, const char *Reason));
GLOBAL void Lists_Del PARAMS((struct list_head *head, const char *Mask));
GLOBAL unsigned long Lists_Count PARAMS((struct list_head *h));
GLOBAL void Lists_Free PARAMS((struct list_head *head));

3
src/ngircd/messages.h
View File

@ -22,7 +22,7 @@
#define RPL_CREATED_MSG "003 %s :This server has been started %s"
#define RPL_MYINFO_MSG "004 %s %s ngircd-%s %s %s"
#define RPL_ISUPPORT1_MSG "005 %s RFC2812 IRCD=ngIRCd CASEMAPPING=ascii PREFIX=(ov)@+ CHANTYPES=#&+ CHANMODES=bI,k,l,imnOPRstz CHANLIMIT=#&+:%d :are supported on this server"
#define RPL_ISUPPORT2_MSG "005 %s CHANNELLEN=%d NICKLEN=%d TOPICLEN=%d AWAYLEN=%d KICKLEN=%d MODES=%d PENALTY :are supported on this server"
#define RPL_ISUPPORT2_MSG "005 %s CHANNELLEN=%d NICKLEN=%d TOPICLEN=%d AWAYLEN=%d KICKLEN=%d MODES=%d MAXLIST=bI:%d PENALTY :are supported on this server"
#define RPL_TRACELINK_MSG "200 %s Link %s-%s %s %s V%s %ld %d %d"
#define RPL_TRACEOPERATOR_MSG "204 %s Oper 2 :%s"
@ -127,6 +127,7 @@
#define ERR_BANNEDFROMCHAN_MSG "474 %s %s :Cannot join channel (+b)"
#define ERR_BADCHANNELKEY_MSG "475 %s %s :Cannot join channel (+k)"
#define ERR_NOCHANMODES_MSG "477 %s %s :Channel doesn't support modes"
#define ERR_LISTFULL_MSG "478 %s %s %s: Channel list is full (%d)"
#define ERR_NOPRIVILEGES_MSG "481 %s :Permission denied"
#define ERR_CHANOPRIVSNEEDED_MSG "482 %s %s :You are not channel operator"
#define ERR_CANTKILLSERVER_MSG "483 %s :You can't kill a server!"