solanum-vs-hackint-and-char.../extensions/extb_extgecos.c
Aaron Jones 5ca20c098a
extensions/extb_extgecos: support CIDR masks in $x extbans (#414)
This allows a channel operator to set a channel ban such as
"$x:*!*@192.0.2.0/24#*web.libera.chat*" and have it function
as intended.

Closes solanum-ircd/solanum#26
2023-07-01 19:16:27 +01:00

71 lines
1.4 KiB
C

/*
* Extended extban type: bans all users with matching nick!user@host#gecos.
* Requested by Lockwood.
* - nenolod
*/
#include "stdinc.h"
#include "modules.h"
#include "client.h"
#include "ircd.h"
static const char extb_desc[] = "Extended mask ($x) extban type";
static int _modinit(void);
static void _moddeinit(void);
static int eb_extended(const char *data, struct Client *client_p, struct Channel *chptr, long mode_type);
DECLARE_MODULE_AV2(extb_extended, _modinit, _moddeinit, NULL, NULL, NULL, NULL, NULL, extb_desc);
static int
_modinit(void)
{
extban_table['x'] = eb_extended;
return 0;
}
static void
_moddeinit(void)
{
extban_table['x'] = NULL;
}
static int eb_extended(const char *data, struct Client *client_p,
struct Channel *chptr, long mode_type)
{
(void)chptr;
if (data == NULL)
return EXTBAN_INVALID;
const char *idx = strchr(data, '#');
if (idx != NULL && idx[1] == '\0')
/* Users cannot have empty realnames,
* so don't let a ban be set matching one
*/
return EXTBAN_INVALID;
if (idx != NULL)
{
char buf[BUFSIZE];
// Copy the nick!user@host part of the ban
memcpy(buf, data, (idx - data));
buf[(idx - data)] = '\0';
// Advance to the realname part of the ban
idx++;
if (client_matches_mask(client_p, buf) && match(idx, client_p->info))
return EXTBAN_MATCH;
return EXTBAN_NOMATCH;
}
if (client_matches_mask(client_p, data))
return EXTBAN_MATCH;
return EXTBAN_NOMATCH;
}