1 /* proto-common.c - common IRC protocol parsing/sending support
2 * Copyright 2000-2004 srvx Development Team
4 * This file is part of x3.
6 * x3 is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with srvx; if not, write to the Free Software Foundation,
18 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
29 #ifdef HAVE_SYS_SOCKET_H
30 #include <sys/socket.h>
32 #ifdef HAVE_NETINET_IN_H
33 #include <netinet/in.h>
35 #ifdef HAVE_ARPA_INET_H
36 #include <arpa/inet.h>
39 unsigned int lines_processed
;
41 struct io_fd
*socket_io_fd
;
43 const char *hidden_host_suffix
;
45 static char replay_line
[MAXLEN
+80];
47 static int ping_timeout
;
48 static int replay_connected
;
49 static unsigned int nicklen
= NICKLEN
; /* how long do we think servers allow nicks to be? */
50 static struct userList dead_users
;
52 extern struct cManagerNode cManager
;
53 extern unsigned long burst_length
;
54 extern struct cManagerNode cManager
;
55 extern struct policer_params
*oper_policer_params
, *luser_policer_params
;
56 extern server_link_func_t
*slf_list
;
57 extern unsigned int slf_size
, slf_used
;
58 extern new_user_func_t
*nuf_list
;
59 extern unsigned int nuf_size
, nuf_used
;
60 extern del_user_func_t
*duf_list
;
61 extern unsigned int duf_size
, duf_used
;
62 extern time_t boot_time
;
64 void received_ping(void);
66 static int replay_read(void);
67 static dict_t irc_func_dict
;
69 typedef void (*foreach_chanfunc
) (struct chanNode
*chan
, void *data
);
70 typedef void (*foreach_nonchan
) (char *name
, void *data
);
71 typedef void (*foreach_userfunc
) (struct userNode
*user
, void *data
);
72 typedef void (*foreach_nonuser
) (char *name
, void *data
);
73 static void parse_foreach(char *target_list
, foreach_chanfunc cf
, foreach_nonchan nc
, foreach_userfunc uf
, foreach_nonuser nu
, void *data
);
74 static void call_channel_mode_funcs(struct userNode
*who
, struct chanNode
*channel
, char **modes
, unsigned int argc
);
77 uplink_readable(struct io_fd
*fd
) {
78 static char buffer
[MAXLEN
];
82 pos
= ioset_line_read(fd
, buffer
, sizeof(buffer
));
87 if ((eol
= strpbrk(buffer
, "\r\n")))
89 log_replay(MAIN_LOG
, false, buffer
);
90 if (cManager
.uplink
->state
!= DISCONNECTED
)
91 parse_line(buffer
, 0);
96 socket_destroyed(struct io_fd
*fd
)
98 if (fd
&& fd
->state
!= IO_CONNECTED
)
99 log_module(MAIN_LOG
, LOG_ERROR
, "Connection to server lost.");
101 cManager
.uplink
->state
= DISCONNECTED
;
103 DelServer(self
->uplink
, 0, NULL
);
106 void replay_event_loop(void)
108 while (!quit_services
) {
109 if (!replay_connected
) {
110 /* this time fudging is to get some of the logging right */
111 self
->link
= self
->boot
= now
;
112 cManager
.uplink
->state
= AUTHENTICATING
;
113 irc_introduce(cManager
.uplink
->password
);
114 replay_connected
= 1;
115 } else if (!replay_read()) {
116 log_module(MAIN_LOG
, LOG_ERROR
, "Connection to server lost.");
124 create_socket_client(struct uplinkNode
*target
)
126 int port
= target
->port
;
127 const char *addr
= target
->host
;
130 return feof(replay_file
) ? 0 : 1;
133 /* Leave the existing socket open, say we failed. */
134 log_module(MAIN_LOG
, LOG_ERROR
, "Refusing to create second connection to %s:%d.", addr
, port
);
138 log_module(MAIN_LOG
, LOG_INFO
, "Connecting to %s:%i...", addr
, port
);
140 socket_io_fd
= ioset_connect(cManager
.uplink
->bind_addr
, cManager
.uplink
->bind_addr_len
, addr
, port
, 1, 0, NULL
);
142 log_module(MAIN_LOG
, LOG_ERROR
, "Connection to uplink failed: %s (%d)", strerror(errno
), errno
);
143 target
->state
= DISCONNECTED
;
147 socket_io_fd
->readable_cb
= uplink_readable
;
148 socket_io_fd
->destroy_cb
= socket_destroyed
;
149 socket_io_fd
->line_reads
= 1;
150 log_module(MAIN_LOG
, LOG_INFO
, "Connection to server established.");
151 cManager
.uplink
= target
;
152 target
->state
= AUTHENTICATING
;
158 replay_read_line(void)
163 if (replay_line
[0]) return;
165 if (!fgets(replay_line
, sizeof(replay_line
), replay_file
)) {
166 if (feof(replay_file
)) {
168 memset(replay_line
, 0, sizeof(replay_line
));
172 if ((replay_line
[0] != '[')
173 || (replay_line
[3] != ':')
174 || (replay_line
[6] != ':')
175 || (replay_line
[9] != ' ')
176 || (replay_line
[12] != '/')
177 || (replay_line
[15] != '/')
178 || (replay_line
[20] != ']')
179 || (replay_line
[21] != ' ')) {
180 log_module(MAIN_LOG
, LOG_ERROR
, "Unrecognized timestamp in replay file: %s", replay_line
);
183 timestamp
.tm_hour
= strtoul(replay_line
+1, NULL
, 10);
184 timestamp
.tm_min
= strtoul(replay_line
+4, NULL
, 10);
185 timestamp
.tm_sec
= strtoul(replay_line
+7, NULL
, 10);
186 timestamp
.tm_mon
= strtoul(replay_line
+10, NULL
, 10) - 1;
187 timestamp
.tm_mday
= strtoul(replay_line
+13, NULL
, 10);
188 timestamp
.tm_year
= strtoul(replay_line
+16, NULL
, 10) - 1900;
189 timestamp
.tm_isdst
= 0;
190 new_time
= mktime(×tamp
);
191 if (new_time
== -1) {
192 log_module(MAIN_LOG
, LOG_ERROR
, "Unable to parse time struct tm_sec=%d tm_min=%d tm_hour=%d tm_mday=%d tm_mon=%d tm_year=%d", timestamp
.tm_sec
, timestamp
.tm_min
, timestamp
.tm_hour
, timestamp
.tm_mday
, timestamp
.tm_mon
, timestamp
.tm_year
);
197 if (strncmp(replay_line
+22, "(info) ", 7))
206 char read_line
[MAXLEN
];
209 /* if it's a sent line, break out to handle it */
210 if (!strncmp(replay_line
+29, " ", 3))
212 if (!strncmp(replay_line
+29, "W: ", 3)) {
213 log_module(MAIN_LOG
, LOG_ERROR
, "Expected response from services: %s", replay_line
+32);
219 log_replay(MAIN_LOG
, false, replay_line
+32);
220 safestrncpy(read_line
, replay_line
+32, sizeof(read_line
));
221 len
= strlen(read_line
);
222 if (read_line
[len
-1] == '\n')
223 read_line
[--len
] = 0;
225 parse_line(read_line
, 0);
231 replay_write(char *text
)
234 if (strncmp(replay_line
+29, "W: ", 3)) {
235 log_module(MAIN_LOG
, LOG_ERROR
, "Unexpected output during replay: %s", text
);
238 if (strcmp(replay_line
+32, text
)) {
239 log_module(MAIN_LOG
, LOG_ERROR
, "Incorrect output during replay:\nReceived: %sExpected: %s", text
, replay_line
+32);
241 log_replay(MAIN_LOG
, true, text
);
247 void putsock(const char *text
, ...) PRINTF_LIKE(1, 2);
250 putsock(const char *text
, ...)
256 if (!cManager
.uplink
|| cManager
.uplink
->state
== DISCONNECTED
) return;
258 va_start(arg_list
, text
);
259 pos
= vsnprintf(buffer
, MAXLEN
- 2, text
, arg_list
);
261 if (pos
< 0 || pos
> (MAXLEN
- 2)) pos
= MAXLEN
- 2;
264 log_replay(MAIN_LOG
, true, buffer
);
265 buffer
[pos
++] = '\n';
267 ioset_write(socket_io_fd
, buffer
, pos
);
269 replay_write(buffer
);
277 replay_connected
= 0;
278 socket_destroyed(socket_io_fd
);
280 ioset_close(socket_io_fd
, 3);
285 #define CMD_FUNC(NAME) int NAME(UNUSED_ARG(const char *origin), UNUSED_ARG(unsigned int argc), UNUSED_ARG(char **argv))
286 typedef CMD_FUNC(cmd_func_t
);
288 static void timed_ping_timeout(void *data
);
290 /* Ping state is kept in the timeq (only one of these two can be in
291 * the queue at any given time). */
293 timed_send_ping(UNUSED_ARG(void *data
))
295 irc_ping(self
->name
);
296 timeq_add(now
+ ping_timeout
, timed_ping_timeout
, 0);
300 timed_ping_timeout(UNUSED_ARG(void *data
))
302 /* Uplink "health" tracking could be accomplished by counting the
303 number of ping timeouts that happen for each uplink. After the
304 timeouts per time period exceeds some amount, the uplink could
305 be marked as unavalable.*/
306 irc_squit(self
, "Ping timeout.", NULL
);
309 static CMD_FUNC(cmd_pass
)
311 const char *true_pass
;
315 true_pass
= cManager
.uplink
->their_password
;
316 if (true_pass
&& strcmp(true_pass
, argv
[1])) {
317 /* It might be good to mark the uplink as unavailable when
318 this happens, though there should be a way of resetting
320 irc_squit(self
, "Incorrect password received.", NULL
);
324 cManager
.uplink
->state
= BURSTING
;
328 static CMD_FUNC(cmd_dummy
)
330 /* we don't care about these messages */
334 static CMD_FUNC(cmd_error
)
336 if (argv
[1]) log_module(MAIN_LOG
, LOG_ERROR
, "Error from ircd: %s", argv
[1]);
337 log_module(MAIN_LOG
, LOG_ERROR
, "Error received from uplink, squitting.");
339 if (cManager
.uplink
->state
!= CONNECTED
) {
340 /* Error messages while connected should be fine. */
341 cManager
.uplink
->flags
|= UPLINK_UNAVAILABLE
;
342 log_module(MAIN_LOG
, LOG_ERROR
, "Disabling uplink.");
349 static CMD_FUNC(cmd_stats
)
355 if (!(un
= GetUserH(origin
)))
357 switch (argv
[1][0]) {
359 unsigned int uptime
= now
- boot_time
;
360 irc_numeric(un
, RPL_STATSUPTIME
, ":Server Up %d days %d:%02d:%02d",
361 uptime
/(24*60*60), (uptime
/(60*60))%24
, (uptime
/60)%60
, uptime%60
);
362 irc_numeric(un
, RPL_MAXCONNECTIONS
, ":Highest connection count: %d (%d clients)",
363 self
->max_clients
+1, self
->max_clients
);
366 default: /* unrecognized/unhandled stats output */ break;
368 irc_numeric(un
, 219, "%s :End of /STATS report", argv
[1]);
372 static CMD_FUNC(cmd_version
)
374 struct userNode
*user
;
375 if (!(user
= GetUserH(origin
))) {
376 log_module(MAIN_LOG
, LOG_ERROR
, "Could not find VERSION origin user %s", origin
);
379 irc_numeric(user
, 351, "%s %s %s", PACKAGE_TARNAME
, PACKAGE_VERSION
, self
->name
);
383 static CMD_FUNC(cmd_admin
)
385 struct userNode
*user
;
386 struct string_list
*slist
;
388 if (!(user
= GetUserH(origin
))) {
389 log_module(MAIN_LOG
, LOG_ERROR
, "Could not find ADMIN origin user %s", origin
);
392 if ((slist
= conf_get_data("server/admin", RECDB_STRING_LIST
)) && slist
->used
) {
395 irc_numeric(user
, 256, ":Administrative info about %s", self
->name
);
396 for (i
= 0; i
< slist
->used
&& i
< 3; i
++)
397 irc_numeric(user
, 257 + i
, ":%s", slist
->list
[i
]);
399 irc_numeric(user
, 423, ":No administrative info available");
405 recalc_bursts(struct server
*eob_server
)
408 eob_server
->burst
= eob_server
->self_burst
;
409 if (eob_server
->uplink
!= self
)
410 eob_server
->burst
= eob_server
->burst
|| eob_server
->uplink
->burst
;
411 for (nn
=0; nn
< eob_server
->children
.used
; nn
++)
412 recalc_bursts(eob_server
->children
.list
[nn
]);
415 static struct chanmsg_func
{
417 struct userNode
*service
;
418 } chanmsg_funcs
[256]; /* indexed by trigger character */
420 static struct allchanmsg_func
{
422 struct userNode
*service
;
423 } allchanmsg_funcs
[ALLCHANMSG_FUNCS_MAX
];
425 struct privmsg_desc
{
426 struct userNode
*user
;
428 unsigned int is_notice
: 1;
429 unsigned int is_qualified
: 1;
433 privmsg_chan_helper(struct chanNode
*cn
, void *data
)
435 struct privmsg_desc
*pd
= data
;
437 struct chanmsg_func
*cf
= &chanmsg_funcs
[(unsigned char)pd
->text
[0]];
440 /* Don't complain if it can't find the modeNode because the channel might
442 if ((mn
= GetUserMode(cn
, pd
->user
)))
443 mn
->idle_since
= now
;
445 /* Never send a NOTICE to a channel to one of the services */
446 if (!pd
->is_notice
&& cf
->func
&& ((cn
->modes
& MODE_REGISTERED
) || GetUserMode(cn
, cf
->service
)))
447 cf
->func(pd
->user
, cn
, pd
->text
+1, cf
->service
); /* XXX- taken out in 1.4rc1 patchset but causes errors */
449 spamserv_channel_message(cn
, pd
->user
, pd
->text
);
451 /* This catches *all* text sent to the channel that the services server sees */
452 for (x
= 0; x
< ALLCHANMSG_FUNCS_MAX
; x
++) {
453 cf
= (struct chanmsg_func
*)&allchanmsg_funcs
[x
];
455 break; /* end of list */
457 cf
->func(pd
->user
, cn
, pd
->text
, cf
->service
);
462 privmsg_invalid(char *name
, void *data
)
464 struct privmsg_desc
*pd
= data
;
468 irc_numeric(pd
->user
, ERR_NOSUCHNICK
, "%s@%s :No such nick", name
, self
->name
);
472 struct userNode
*user
;
477 part_helper(struct chanNode
*cn
, void *data
)
479 struct part_desc
*desc
= data
;
480 DelChannelUser(desc
->user
, cn
, desc
->text
, false);
483 static CMD_FUNC(cmd_part
)
485 struct part_desc desc
;
489 desc
.user
= GetUserH(origin
);
492 desc
.text
= (argc
> 2) ? argv
[argc
- 1] : NULL
;
493 parse_foreach(argv
[1], part_helper
, NULL
, NULL
, NULL
, &desc
);
498 reg_chanmsg_func(unsigned char prefix
, struct userNode
*service
, chanmsg_func_t handler
)
500 if (chanmsg_funcs
[prefix
].func
)
501 log_module(MAIN_LOG
, LOG_WARNING
, "Re-registering new chanmsg handler for character `%c'.", prefix
);
502 chanmsg_funcs
[prefix
].func
= handler
;
503 chanmsg_funcs
[prefix
].service
= service
;
507 reg_allchanmsg_func(struct userNode
*service
, chanmsg_func_t handler
)
510 for (x
= 0; x
< ALLCHANMSG_FUNCS_MAX
; x
++) {
511 if (allchanmsg_funcs
[x
].func
)
513 allchanmsg_funcs
[x
].func
= handler
;
514 allchanmsg_funcs
[x
].service
= service
;
520 get_chanmsg_bot(unsigned char prefix
)
522 return chanmsg_funcs
[prefix
].service
;
525 static mode_change_func_t
*mcf_list
;
526 static unsigned int mcf_size
= 0, mcf_used
= 0;
529 reg_mode_change_func(mode_change_func_t handler
)
531 if (mcf_used
== mcf_size
) {
534 mcf_list
= realloc(mcf_list
, mcf_size
*sizeof(mode_change_func_t
));
537 mcf_list
= malloc(mcf_size
*sizeof(mode_change_func_t
));
540 mcf_list
[mcf_used
++] = handler
;
543 struct mod_chanmode
*
544 mod_chanmode_alloc(unsigned int argc
)
546 struct mod_chanmode
*res
;
548 res
= calloc(1, sizeof(*res
) + (argc
-1)*sizeof(res
->args
[0]));
550 res
= calloc(1, sizeof(*res
));
553 res
->alloc_argc
= argc
;
560 struct mod_chanmode
*
561 mod_chanmode_dup(struct mod_chanmode
*orig
, unsigned int extra
)
563 struct mod_chanmode
*res
;
564 res
= mod_chanmode_alloc(orig
->argc
+ extra
);
566 res
->modes_set
= orig
->modes_set
;
567 res
->modes_clear
= orig
->modes_clear
;
568 res
->new_limit
= orig
->new_limit
;
569 memcpy(res
->new_key
, orig
->new_key
, sizeof(res
->new_key
));
570 memcpy(res
->new_upass
, orig
->new_upass
, sizeof(res
->new_upass
));
571 memcpy(res
->new_apass
, orig
->new_apass
, sizeof(res
->new_apass
));
572 res
->argc
= orig
->argc
;
573 memcpy(res
->args
, orig
->args
, orig
->argc
*sizeof(orig
->args
[0]));
579 mod_chanmode_apply(struct userNode
*who
, struct chanNode
*channel
, struct mod_chanmode
*change
)
582 struct exemptNode
*en
;
585 assert(change
->argc
<= change
->alloc_argc
);
586 channel
->modes
= (channel
->modes
& ~change
->modes_clear
) | change
->modes_set
;
587 if (change
->modes_set
& MODE_LIMIT
)
588 channel
->limit
= change
->new_limit
;
589 if (change
->modes_set
& MODE_KEY
)
590 strcpy(channel
->key
, change
->new_key
);
591 if (change
->modes_set
& MODE_UPASS
)
592 strcpy(channel
->upass
, change
->new_upass
);
593 if (change
->modes_set
& MODE_APASS
)
594 strcpy(channel
->apass
, change
->new_apass
);
595 for (ii
= 0; ii
< change
->argc
; ++ii
) {
596 switch (change
->args
[ii
].mode
) {
598 /* If any existing ban is a subset of the new ban,
599 * silently remove it. The new ban is not allowed
600 * to be more specific than an existing ban.
602 for (jj
=0; jj
<channel
->banlist
.used
; ++jj
) {
603 bn
= channel
->banlist
.list
[jj
];
604 if (match_ircglobs(change
->args
[ii
].u
.hostmask
, bn
->ban
)) {
605 banList_remove(&channel
->banlist
, bn
);
610 bn
= calloc(1, sizeof(*bn
));
611 safestrncpy(bn
->ban
, change
->args
[ii
].u
.hostmask
, sizeof(bn
->ban
));
613 safestrncpy(bn
->who
, who
->nick
, sizeof(bn
->who
));
615 safestrncpy(bn
->who
, "<unknown>", sizeof(bn
->who
));
617 banList_append(&channel
->banlist
, bn
);
619 case MODE_REMOVE
|MODE_BAN
:
620 for (jj
=0; jj
<channel
->banlist
.used
; ++jj
) {
621 bn
= channel
->banlist
.list
[jj
];
622 if (strcmp(bn
->ban
, change
->args
[ii
].u
.hostmask
))
625 banList_remove(&channel
->banlist
, bn
);
630 /* If any existing exempt is a subset of the new exempt,
631 * silently remove it. The new exempt is not allowed
632 * to be more specific than an existing exempt.
634 for (jj
=0; jj
<channel
->exemptlist
.used
; ++jj
) {
635 if (match_ircglobs(change
->args
[ii
].u
.hostmask
, channel
->exemptlist
.list
[jj
]->exempt
)) {
636 exemptList_remove(&channel
->exemptlist
, channel
->exemptlist
.list
[jj
]);
637 free(channel
->exemptlist
.list
[jj
]);
641 en
= calloc(1, sizeof(*en
));
642 safestrncpy(en
->exempt
, change
->args
[ii
].u
.hostmask
, sizeof(en
->exempt
));
644 safestrncpy(en
->who
, who
->nick
, sizeof(en
->who
));
646 safestrncpy(en
->who
, "<unknown>", sizeof(en
->who
));
648 exemptList_append(&channel
->exemptlist
, en
);
650 case MODE_REMOVE
|MODE_EXEMPT
:
651 for (jj
=0; jj
<channel
->exemptlist
.used
; ++jj
) {
652 if (strcmp(channel
->exemptlist
.list
[jj
]->exempt
, change
->args
[ii
].u
.hostmask
))
654 free(channel
->exemptlist
.list
[jj
]);
655 exemptList_remove(&channel
->exemptlist
, channel
->exemptlist
.list
[jj
]);
659 /* XXX Hack: this is the stupedest use of switch iv ever seen.
660 * you have to compare for EVERY POSSIBLE COMBINATION of bitmask
661 * because switch does only full comparison. This needs redone as if/else.
666 case MODE_VOICE
|MODE_CHANOP
:
667 case MODE_VOICE
|MODE_HALFOP
:
668 case MODE_CHANOP
|MODE_HALFOP
:
669 case MODE_VOICE
|MODE_CHANOP
|MODE_HALFOP
:
670 case MODE_REMOVE
|MODE_CHANOP
:
671 case MODE_REMOVE
|MODE_HALFOP
:
672 case MODE_REMOVE
|MODE_VOICE
:
673 case MODE_REMOVE
|MODE_VOICE
|MODE_CHANOP
:
674 case MODE_REMOVE
|MODE_VOICE
|MODE_HALFOP
:
675 case MODE_REMOVE
|MODE_CHANOP
|MODE_HALFOP
:
676 case MODE_REMOVE
|MODE_VOICE
|MODE_CHANOP
|MODE_HALFOP
:
677 if (change
->args
[ii
].mode
& MODE_REMOVE
)
678 change
->args
[ii
].u
.member
->modes
&= ~change
->args
[ii
].mode
;
680 change
->args
[ii
].u
.member
->modes
|= change
->args
[ii
].mode
;
683 assert(0 && "Invalid mode argument");
690 mod_chanmode_free(struct mod_chanmode
*change
)
696 mod_chanmode(struct userNode
*who
, struct chanNode
*channel
, char **modes
, unsigned int argc
, unsigned int flags
)
698 struct modeNode
*member
;
699 struct mod_chanmode
*change
;
704 if (!modes
|| !modes
[0])
706 if (who
&& (member
= GetUserMode(channel
, who
)))
707 base_oplevel
= member
->oplevel
;
709 base_oplevel
= MAXOPLEVEL
;
710 if (!(change
= mod_chanmode_parse(channel
, modes
, argc
, flags
, base_oplevel
)))
713 call_channel_mode_funcs(who
, channel
, modes
, argc
);
715 if (flags
& MC_ANNOUNCE
)
716 mod_chanmode_announce(who
, channel
, change
);
718 mod_chanmode_apply(who
, channel
, change
);
719 if (flags
& MC_NOTIFY
)
720 for (ii
= 0; ii
< mcf_used
; ++ii
)
721 mcf_list
[ii
](channel
, who
, change
);
722 mod_chanmode_free(change
);
727 irc_make_chanmode(struct chanNode
*chan
, char *out
)
729 struct mod_chanmode change
;
730 mod_chanmode_init(&change
);
731 change
.modes_set
= chan
->modes
;
732 change
.new_limit
= chan
->limit
;
733 safestrncpy(change
.new_key
, chan
->key
, sizeof(change
.new_key
));
734 safestrncpy(change
.new_upass
, chan
->upass
, sizeof(change
.new_upass
));
735 safestrncpy(change
.new_apass
, chan
->apass
, sizeof(change
.new_apass
));
736 return strlen(mod_chanmode_format(&change
, out
));
739 static user_mode_func_t
*um_list
;
740 static unsigned int um_size
= 0, um_used
= 0;
743 reg_user_mode_func(user_mode_func_t handler
)
745 if (um_used
== um_size
) {
748 um_list
= realloc(um_list
, um_size
*sizeof(user_mode_func_t
));
751 um_list
= malloc(um_size
*sizeof(user_mode_func_t
));
754 um_list
[um_used
++] = handler
;
758 unreg_user_mode_func(user_mode_func_t handler
)
761 for (i
=0; i
<um_used
; i
++) {
762 if (um_list
[i
] == handler
) break;
764 if (i
== um_used
) return;
765 memmove(um_list
+i
, um_list
+i
+1, (um_used
-i
-1)*sizeof(um_list
[0]));
770 call_user_mode_funcs(struct userNode
*user
, const char *mode_change
)
773 for (n
=0; n
<um_used
; n
++) {
774 um_list
[n
](user
, mode_change
);
778 static channel_mode_func_t
*cm_list
;
779 static unsigned int cm_size
= 0, cm_used
= 0;
782 reg_channel_mode_func(channel_mode_func_t handler
)
784 if (cm_used
== cm_size
) {
787 cm_list
= realloc(cm_list
, cm_size
*sizeof(channel_mode_func_t
));
790 cm_list
= malloc(cm_size
*sizeof(channel_mode_func_t
));
793 cm_list
[cm_used
++] = handler
;
797 unreg_channel_mode_func(channel_mode_func_t handler
)
800 for (i
=0; i
<cm_used
; i
++) {
801 if(cm_list
[i
] == handler
) break;
803 if (i
== cm_used
) return;
804 memmove(cm_list
+i
, cm_list
+i
+1, (cm_used
-i
-1)*sizeof(cm_list
[0]));
809 call_channel_mode_funcs(struct userNode
*who
, struct chanNode
*channel
, char **modes
, unsigned int argc
)
812 for (n
=0; n
<cm_used
; n
++) {
813 cm_list
[n
](who
, channel
, modes
, argc
);
818 generate_hostmask(struct userNode
*user
, int options
)
821 char *nickname
, *ident
, *hostname
, *mask
;
824 /* figure out string parts */
825 if (options
& GENMASK_OMITNICK
)
827 else if (options
& GENMASK_USENICK
)
828 nickname
= user
->nick
;
831 if (options
& GENMASK_STRICT_IDENT
)
832 // sethost - reed/apples
833 if (IsSetHost(user
)) {
834 ident
= alloca(strcspn(user
->sethost
, "@")+2);
835 safestrncpy(ident
, user
->sethost
, strcspn(user
->sethost
, "@")+1);
839 else if (options
& GENMASK_ANY_IDENT
)
842 // sethost - reed/apples
843 if (IsSetHost(user
)) {
844 ident
= alloca(strcspn(user
->sethost
, "@")+3);
846 safestrncpy(ident
+1, user
->sethost
, strcspn(user
->sethost
, "@")+1);
848 ident
= alloca(strlen(user
->ident
)+2);
850 strcpy(ident
+1, user
->ident
+ ((*user
->ident
== '~')?1:0));
853 hostname
= user
->hostname
;
854 if (IsFakeHost(user
) && IsHiddenHost(user
) && !(options
& GENMASK_NO_HIDING
)) {
855 hostname
= user
->fakehost
;
856 } else if (IsHiddenHost(user
)) {
859 data
= conf_get_data("server/hidden_host_type", RECDB_QSTRING
);
863 if ((style
== 1) && user
->handle_info
&& hidden_host_suffix
&& !(options
& GENMASK_NO_HIDING
)) {
864 hostname
= alloca(strlen(user
->handle_info
->handle
) + strlen(hidden_host_suffix
) + 2);
865 sprintf(hostname
, "%s.%s", user
->handle_info
->handle
, hidden_host_suffix
);
866 } else if ((style
== 2) && !(options
& GENMASK_NO_HIDING
)) {
867 hostname
= alloca(strlen(user
->crypthost
));
868 sprintf(hostname
, "%s", user
->crypthost
);
870 } else if (options
& GENMASK_STRICT_HOST
) {
871 if (options
& GENMASK_BYIP
)
872 hostname
= (char*)irc_ntoa(&user
->ip
);
873 } else if ((options
& GENMASK_BYIP
) || irc_pton(&ip
, NULL
, hostname
)) {
874 /* Should generate an IP-based hostmask. */
875 hostname
= alloca(IRC_NTOP_MAX_SIZE
);
876 hostname
[IRC_NTOP_MAX_SIZE
-1] = '\0';
877 if (irc_in_addr_is_ipv4(user
->ip
)) {
878 /* By popular acclaim, a /16 hostmask is used. */
879 sprintf(hostname
, "%d.%d.*", user
->ip
.in6_8
[12], user
->ip
.in6_8
[13]);
880 } else if (irc_in_addr_is_ipv6(user
->ip
)) {
881 /* Who knows what the default mask should be? Use a /48 to start with. */
882 sprintf(hostname
, "%x:%x:%x:*", user
->ip
.in6
[0], user
->ip
.in6
[1], user
->ip
.in6
[2]);
884 /* Unknown type; just copy IP directly. */
885 irc_ntop(hostname
, IRC_NTOP_MAX_SIZE
, &user
->ip
);
889 /* This heuristic could be made smarter. Is it worth the effort? */
890 for (ii
=cnt
=0; hostname
[ii
]; ii
++)
891 if (hostname
[ii
] == '.')
893 if (cnt
== 0 || cnt
== 1) {
894 /* only a one- or two-level domain name; leave hostname */
895 } else if (cnt
== 2) {
896 for (ii
=0; user
->hostname
[ii
] != '.'; ii
++) ;
897 /* Add 3 to account for the *. and \0. */
898 hostname
= alloca(strlen(user
->hostname
+ii
)+3);
899 sprintf(hostname
, "*.%s", user
->hostname
+ii
+1);
901 for (cnt
=3, ii
--; cnt
; ii
--)
902 if (user
->hostname
[ii
] == '.')
904 /* The loop above will overshoot the dot one character;
905 we skip forward two (the one character and the dot)
906 when printing, so we only add one for the \0. */
907 hostname
= alloca(strlen(user
->hostname
+ii
)+1);
908 sprintf(hostname
, "*.%s", user
->hostname
+ii
+2);
911 // sethost - reed/apples
913 hostname
= strchr(user
->sethost
, '@') + 1;
916 len
= strlen(ident
) + strlen(hostname
) + 2;
918 len
+= strlen(nickname
) + 1;
920 sprintf(mask
, "%s!%s@%s", nickname
, ident
, hostname
);
923 sprintf(mask
, "%s@%s", ident
, hostname
);
929 IsChannelName(const char *name
) {
934 for (ii
=1; name
[ii
]; ++ii
) {
935 if ((name
[ii
] > 0) && (name
[ii
] <= 32))
939 if (name
[ii
] == '\xa0')