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Comparing ircd-hybrid/trunk/src/parse.c (file contents):
Revision 2786 by michael, Mon Jan 6 22:33:53 2014 UTC vs.
Revision 9101 by michael, Wed Jan 1 09:58:45 2020 UTC

#	Line 1 | Line 1
1		/*
2	<	*  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3	<	*  parse.c: The message parser.
2	>	*  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3		*
4	<	*  Copyright (C) 2002 by the past and present ircd coders, and others.
4	>	*  Copyright (c) 1997-2020 ircd-hybrid development team
5		*
6		*  This program is free software; you can redistribute it and/or modify
7		*  it under the terms of the GNU General Public License as published by
#	Line 16 | Line 15
15		*
16		*  You should have received a copy of the GNU General Public License
17		*  along with this program; if not, write to the Free Software
18	<	*  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
18	>	*  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
19		*  USA
20	<	*
21	<	*  $Id$
20	>	*/
21	>
22	>	/*! \file parse.c
23	>	* \brief The message parser.
24	>	* \version $Id$
25		*/
26
27		#include "stdinc.h"
#	Line 27 | Line 29
29		#include "parse.h"
30		#include "channel.h"
31		#include "hash.h"
32	+	#include "id.h"
33		#include "irc_string.h"
34		#include "ircd.h"
35		#include "numeric.h"
#	Line 34 | Line 37
37		#include "send.h"
38		#include "conf.h"
39		#include "memory.h"
40	<	#include "s_user.h"
41	<	#include "s_serv.h"
40	>	#include "user.h"
41	>	#include "server.h"
42	>	#include "packet.h"
43	>
44
45		/*
46		* (based on orabidoo's parser code)
#	Line 51 | Line 56
56		* 't' points -> [MessageTree *] 'r' -> [MessageTree *] -> 'i'
57		*   -> [MessageTree *] -> [MessageTree *] -> 'e' and matches
58		*
59	<	*                               'i' -> [MessageTree *] -> 'e' and matches
59	>	*                               'i' -> [MessageTree *] -> 'e' and matches
60		*
61		* BUGS (Limitations!)
62		*
#	Line 69 | Line 74
74		* Diane Bruce (Dianora), June 6 2003
75		*/
76
77	<	#define MAXPTRLEN 32
78	<	/* Must be a power of 2, and
79	<	* larger than 26 [a-z]|[A-Z]
80	<	* its used to allocate the set
81	<	* of pointers at each node of the tree
82	<	* There are MAXPTRLEN pointers at each node.
83	<	* Obviously, there have to be more pointers
84	<	* Than ASCII letters. 32 is a nice number
85	<	* since there is then no need to shift
86	<	* 'A'/'a' to base 0 index, at the expense
87	<	* of a few never used pointers. For a small
83	<	* parser like this, this is a good compromise
84	<	* and does make it somewhat faster.
85	<	*
86	<	* - Dianora
87	<	*/
77	>	/*
78	>	* Must be a power of 2, and larger than 26 [a-z]|[A-Z]. It's used to allocate
79	>	* the set of pointers at each node of the tree.
80	>	* There are MAXPTRLEN pointers at each node. Obviously, there have to be more
81	>	* pointers than ASCII letters. 32 is a nice number since there is then no need
82	>	* to shift 'A'/'a' to base 0 index, at the expense of a few never used
83	>	* pointers.
84	>	* For a small parser like this, this is a good compromise and does
85	>	* make it somewhat faster. - Dianora
86	>	*/
87	>	enum { MAXPTRLEN = 32 };
88
89	<	struct MessageTree
89	>
90	>	static struct MessageTree
91		{
92		int links; /* Count of all pointers (including msg) at this node
93		* used as reference count for deletion of _this_ node.
94		*/
95		struct Message *msg;
96		struct MessageTree *pointers[MAXPTRLEN];
97	<	};
97	>	} msg_tree;
98	>
99
100	<	static struct MessageTree msg_tree;
100	>	/* remove_unknown()
101	>	*
102	>	* inputs       -
103	>	* output       -
104	>	* side effects -
105	>	*/
106	>	static void
107	>	parse_remove_unknown(struct Client *client_p, const char *lsender, char *lbuffer)
108	>	{
109	>	/*
110	>	* Do kill if it came from a server because it means there is a ghost
111	>	* user on the other server which needs to be removed. -avalon
112	>	* Tell opers about this. -Taner
113	>	*/
114	>	/*
115	>	* '[0-9]something'  is an ID      (KILL/SQUIT depending on its length)
116	>	* 'nodots'          is a nickname (KILL)
117	>	* 'no.dot.at.start' is a server   (SQUIT)
118	>	*/
119	>	if ((IsDigit(*lsender) && strlen(lsender) <= IRC_MAXSID) || strchr(lsender, '.'))
120	>	{
121	>	sendto_realops_flags(UMODE_DEBUG, L_ADMIN, SEND_NOTICE,
122	>	"Unknown prefix (%s) from %s, Squitting %s",
123	>	lbuffer, client_get_name(client_p, SHOW_IP), lsender);
124	>	sendto_realops_flags(UMODE_DEBUG, L_OPER, SEND_NOTICE,
125	>	"Unknown prefix (%s) from %s, Squitting %s",
126	>	lbuffer, client_get_name(client_p, MASK_IP), lsender);
127	>	sendto_one(client_p, ":%s SQUIT %s :(Unknown prefix (%s) from %s)",
128	>	me.id, lsender, lbuffer, client_p->name);
129	>	}
130	>	else
131	>	sendto_one(client_p, ":%s KILL %s :%s (Unknown Client)",
132	>	me.id, lsender, me.name);
133	>	}
134
135		/*
136	<	* NOTE: parse() should not be called recursively by other functions!
136	>	*
137	>	*      parc    number of arguments ('sender' counted as one!)
138	>	*      parv[0] pointer to 'sender' (may point to empty string) (not used)
139	>	*      parv[1]..parv[parc-1]
140	>	*              pointers to additional parameters, this is a NULL
141	>	*              terminated list (parv[parc] == NULL).
142	>	*
143	>	* *WARNING*
144	>	*      Numerics are mostly error reports. If there is something
145	>	*      wrong with the message, just *DROP* it! Don't even think of
146	>	*      sending back a neat error message -- big danger of creating
147	>	*      a ping pong error message...
148	>	*
149	>	* Rewritten by Nemesi, Jan 1999, to support numeric nicks in parv[1]
150	>	*
151	>	* Called when we get a numeric message from a remote _server_ and we are
152	>	* supposed to forward it somewhere. Note that we always ignore numerics sent
153	>	* to 'me' and simply drop the message if we can't handle with this properly:
154	>	* the savvy approach is NEVER generate an error in response to an... error :)
155		*/
156	<	static char *sender;
157	<	static char *para[MAXPARA + 2]; /* <prefix> + <params> + NULL */
156	>	static void
157	>	parse_handle_numeric(unsigned int numeric, struct Client *source_p, int parc, char *parv[])
158	>	{
159	>	struct Client *target_p = NULL;
160	>	struct Channel *channel = NULL;
161	>
162	>	/*
163	>	* Avoid trash, we need it to come from a server and have a target
164	>	*/
165	>	if (parc < 2 || !IsServer(source_p))
166	>	return;
167	>
168	>	/*
169	>	* Who should receive this message ? Will we do something with it ?
170	>	* Note that we use findUser functions, so the target can't be neither
171	>	* a server, nor a channel (?) nor a list of targets (?) .. u2.10
172	>	* should never generate numeric replies to non-users anyway
173	>	* Ahem... it can be a channel actually, csc bots use it :\ --Nem
174	>	*/
175	>	if (IsChanPrefix(*parv[1]))
176	>	channel = hash_find_channel(parv[1]);
177	>	else
178	>	target_p = find_person(source_p, parv[1]);
179
180	<	static int cancel_clients(struct Client *, struct Client *, char *);
181	<	static void remove_unknown(struct Client *, char *, char *);
108	<	static void handle_numeric(char[], struct Client *, struct Client *, int, char *[]);
109	<	static void handle_command(struct Message *, struct Client *, struct Client *, unsigned int, char *[]);
180	>	if ((target_p == NULL || target_p->from == source_p->from) && channel == NULL)
181	>	return;
182
183	+	/*
184	+	* Remap low number numerics, not that I understand WHY.. --Nemesi
185	+	*/
186	+	/*
187	+	* Numerics below 100 talk about the current 'connection', you're not
188	+	* connected to a remote server so it doesn't make sense to send them
189	+	* remotely - but the information they contain may be useful, so we
190	+	* remap them up. Weird, but true.  -- Isomer
191	+	*/
192	+	if (numeric < 100)
193	+	numeric += 100;
194	+
195	+	if (target_p)
196	+	{
197	+	/* Fake it for server hiding, if it's our client */
198	+	if ((ConfigServerHide.hide_servers || IsHidden(source_p)) && MyConnect(target_p) &&
199	+	!HasUMode(target_p, UMODE_OPER))
200	+	sendto_one_numeric(target_p, &me, numeric | SND_EXPLICIT, "%s", parv[2]);
201	+	else
202	+	sendto_one_numeric(target_p, source_p, numeric | SND_EXPLICIT, "%s", parv[2]);
203	+	}
204	+	else
205	+	sendto_channel_butone(source_p, source_p, channel, 0, "%u %s %s",
206	+	numeric, channel->name, parv[2]);
207	+	}
208	+
209	+	/* handle_command()
210	+	*
211	+	* inputs       - pointer to message block
212	+	*              - pointer to client
213	+	*              - pointer to client message is from
214	+	*              - count of number of args
215	+	*              - pointer to argv[] array
216	+	* output       - -1 if error from server
217	+	* side effects -
218	+	*/
219	+	static void
220	+	parse_handle_command(struct Message *message, struct Client *source_p,
221	+	unsigned int i, char *para[])
222	+	{
223	+	if (IsServer(source_p->from))
224	+	++message->rcount;
225	+	++message->count;
226	+
227	+	if (MyClient(source_p) && (message->flags & MFLG_ENDGRACE))
228	+	flood_endgrace(source_p);
229	+
230	+	/* Check right amount of parameters is passed... --is */
231	+	if (i < message->args_min)
232	+	sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, message->cmd);
233	+	else
234	+	message->handlers[source_p->from->handler](source_p, i, para);
235	+	}
236
237		/*
238		* parse a buffer.
#	Line 118 | Line 243 | void
243		parse(struct Client *client_p, char *pbuffer, char *bufend)
244		{
245		struct Client *from = client_p;
246	<	struct Message *msg_ptr = NULL;
246	>	struct Message *message = NULL;
247	>	char *para[MAXPARA + 2];  /* <command> + <parameters> + NULL */
248		char *ch = NULL;
249		char *s = NULL;
250	<	char *numeric = NULL;
250	>	unsigned int numeric = 0;
251		unsigned int parc = 0;
252		unsigned int paramcount;
253
254	<	if (IsDefunct(client_p))
254	>	if (IsDead(client_p))
255		return;
256
257	<	assert(client_p->localClient->fd.flags.open);
257	>	assert(client_p->connection);
258	>	assert(client_p->connection->fd);
259	>	assert(client_p->connection->fd->flags.open);
260	>
261	>
262		assert((bufend - pbuffer) < IRCD_BUFSIZE);
263
264	<	for (ch = pbuffer; *ch == ' '; ++ch)  /* skip spaces */
265	<	/* null statement */  ;
264	>	for (ch = pbuffer; *ch == ' '; ++ch)  /* Skip spaces */
265	>	;
266
267		if (*ch == ':')
268		{
#	Line 140 | Line 270 | parse(struct Client *client_p, char *pbu
270		* Copy the prefix to 'sender' assuming it terminates
271		* with SPACE (or NULL, which is an error, though).
272		*/
273	<	sender = ++ch;
273	>	const char *const sender = ++ch;
274
275	<	if ((s = strchr(ch, ' ')) != NULL)
275	>	if ((s = strchr(ch, ' ')))
276		{
277		*s = '\0';
278		ch = ++s;
#	Line 150 | Line 280 | parse(struct Client *client_p, char *pbu
280
281		if (*sender && IsServer(client_p))
282		{
283	<	if ((from = find_person(client_p, sender)) == NULL)
284	<	from = hash_find_server(sender);
283	>	if ((from = hash_find_id(sender)) == NULL)
284	>	from = hash_find_client(sender);
285
286		/*
287		* Hmm! If the client corresponding to the prefix is not found--what is
#	Line 161 | Line 291 | parse(struct Client *client_p, char *pbu
291		if (from == NULL)
292		{
293		++ServerStats.is_unpf;
294	<	remove_unknown(client_p, sender, pbuffer);
294	>	parse_remove_unknown(client_p, sender, pbuffer);
295		return;
296		}
297
298		if (from->from != client_p)
299		{
300		++ServerStats.is_wrdi;
301	<	cancel_clients(client_p, from, pbuffer);
301	>	sendto_realops_flags(UMODE_DEBUG, L_ADMIN, SEND_NOTICE,
302	>	"Fake direction: dropped message from %s[%s] via %s",
303	>	from->name, from->from->name,
304	>	client_get_name(client_p, SHOW_IP));
305	>	sendto_realops_flags(UMODE_DEBUG, L_OPER, SEND_NOTICE,
306	>	"Fake direction: dropped message from %s[%s] via %s",
307	>	from->name, from->from->name,
308	>	client_get_name(client_p, MASK_IP));
309		return;
310		}
311		}
#	Line 191 | Line 328 | parse(struct Client *client_p, char *pbu
328		* code. -avalon
329		*/
330
331	<	/* EOB is 3 chars long but is not a numeric */
332	<	if (*(ch + 3) == ' ' && /* ok, lets see if its a possible numeric.. */
331	>	/* EOB is 3 characters long but is not a numeric */
332	>	if (*(ch + 3) == ' ' &&  /* Ok, let's see if it's a possible numeric */
333		IsDigit(*ch) && IsDigit(*(ch + 1)) && IsDigit(*(ch + 2)))
334		{
335	<	numeric = ch;
336	<	paramcount = 2;  /* destination, and the rest of it */
335	>	numeric = (*ch - '0') * 100 + (*(ch + 1) - '0') * 10 + (*(ch + 2) - '0');
336	>	paramcount = 2;  /* Destination, and the rest of it */
337		++ServerStats.is_num;
338	<	s = ch + 3;  /* I know this is ' ' from above if            */
339	<	*s++ = '\0';  /* blow away the ' ', and point s to next part */
338	>	s = ch + 3;  /* I know this is ' ' from above if */
339	>	*s++ = '\0';  /* Blow away the ' ', and point s to next part */
340		}
341		else
342		{
343	<	unsigned int ii = 0;
207	<
208	<	if ((s = strchr(ch, ' ')) != NULL)
343	>	if ((s = strchr(ch, ' ')))
344		*s++ = '\0';
345
346	<	if ((msg_ptr = find_command(ch)) == NULL)
346	>	if ((message = find_command(ch)) == NULL)
347		{
348	<	/*
348	>	/*
349		* Note: Give error message *only* to recognized
350		* persons. It's a nightmare situation to have
351		* two programs sending "Unknown command"'s or
#	Line 221 | Line 356 | parse(struct Client *client_p, char *pbu
356		* Hm, when is the buffer empty -- if a command
357		* code has been found ?? -Armin
358		*/
359	<	if (*pbuffer != '\0')
225	<	{
359	>	if (*pbuffer)
360		if (IsClient(from))
361	<	sendto_one(from, form_str(ERR_UNKNOWNCOMMAND),
228	<	me.name, from->name, ch);
229	<	}
361	>	sendto_one_numeric(from, &me, ERR_UNKNOWNCOMMAND, ch);
362
363		++ServerStats.is_unco;
364		return;
365		}
366
367	<	assert(msg_ptr->cmd != NULL);
367	>	assert(message->cmd);
368
369	<	paramcount = msg_ptr->args_max;
370	<	ii = bufend - ((s) ? s : ch);
371	<	msg_ptr->bytes += ii;
369	>	paramcount = message->args_max;
370	>
371	>	size_t length = bufend - ((s) ? s : ch);
372	>	message->bytes += length;
373		}
374
375		/*
#	Line 246 | Line 379 | parse(struct Client *client_p, char *pbu
379		* this last parameter (about same effect as ":" has...) --msa
380		*/
381
382	<	/* Note initially true: s==NULL || *(s-1) == '\0' !! */
382	>	/* Note initially true: s == NULL || *(s - 1) == '\0' !! */
383	>
384	>	para[parc] = ch;
385
386	<	para[parc] = from->name;
386	>	if (message && (message->flags & MFLG_EXTRA))
387	>	{
388	>	/*
389	>	* XXX: This will have to go away after the command handler rewrite
390	>	*/
391	>	para[++parc] = message->extra;
392	>	}
393
394		if (s)
395		{
396		if (paramcount > MAXPARA)
397		paramcount = MAXPARA;
398
399	<	while (1)
399	>	while (true)
400		{
401		while (*s == ' ')
402		*s++ = '\0';
#	Line 265 | Line 406 | parse(struct Client *client_p, char *pbu
406
407		if (*s == ':')
408		{
409	<	/* The rest is a single parameter */
410	<	para[++parc] = s + (!numeric);  /* keep the colon if it's a numeric */
409	>	/* The rest is single parameter--can include blanks also. */
410	>	para[++parc] = s + (numeric == 0);  /* Keep the colon if it's a numeric */
411		break;
412		}
413
#	Line 282 | Line 423 | parse(struct Client *client_p, char *pbu
423
424		para[++parc] = NULL;
425
426	<	if (msg_ptr != NULL)
427	<	handle_command(msg_ptr, client_p, from, parc, para);
426	>	if (message)
427	>	parse_handle_command(message, from, parc, para);
428		else
429	<	handle_numeric(numeric, client_p, from, parc, para);
289	<	}
290	<
291	<	/* handle_command()
292	<	*
293	<	* inputs       - pointer to message block
294	<	*              - pointer to client
295	<	*              - pointer to client message is from
296	<	*              - count of number of args
297	<	*              - pointer to argv[] array
298	<	* output       - -1 if error from server
299	<	* side effects -
300	<	*/
301	<	static void
302	<	handle_command(struct Message *mptr, struct Client *client_p,
303	<	struct Client *from, unsigned int i, char *hpara[])
304	<	{
305	<	MessageHandler handler = 0;
306	<
307	<	if (IsServer(client_p))
308	<	mptr->rcount++;
309	<
310	<	mptr->count++;
311	<
312	<	handler = mptr->handlers[client_p->handler];
313	<
314	<	/* check right amount of params is passed... --is */
315	<	if (i < mptr->args_min)
316	<	{
317	<	if (!IsServer(client_p))
318	<	{
319	<	sendto_one(client_p, form_str(ERR_NEEDMOREPARAMS), me.name,
320	<	EmptyString(hpara[0]) ? "*" : hpara[0], mptr->cmd);
321	<	}
322	<	else
323	<	{
324	<	sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
325	<	"Dropping server %s due to (invalid) command '%s' "
326	<	"with only %d arguments (expecting %d).",
327	<	client_p->name, mptr->cmd, i, mptr->args_min);
328	<	ilog(LOG_TYPE_IRCD, "Insufficient parameters (%d) for command '%s' from %s.",
329	<	i, mptr->cmd, client_p->name);
330	<	exit_client(client_p, client_p,
331	<	"Not enough arguments to server command.");
332	<	}
333	<	}
334	<	else
335	<	(*handler)(client_p, from, i, hpara);
429	>	parse_handle_numeric(numeric, from, parc, para);
430		}
431
432		/* add_msg_element()
#	Line 359 | Line 453 | static void
453		add_msg_element(struct MessageTree *mtree_p, struct Message *msg_p,
454		const char *cmd)
455		{
456	<	struct MessageTree *ntree_p;
456	>	struct MessageTree *ntree_p = NULL;
457
458		if (*cmd == '\0')
459		{
#	Line 376 | Line 470 | add_msg_element(struct MessageTree *mtre
470		*/
471		if ((ntree_p = mtree_p->pointers[*cmd & (MAXPTRLEN - 1)]) == NULL)
472		{
473	<	ntree_p = MyMalloc(sizeof(struct MessageTree));
473	>	ntree_p = xcalloc(sizeof(*ntree_p));
474		mtree_p->pointers[*cmd & (MAXPTRLEN - 1)] = ntree_p;
475
476		mtree_p->links++;  /* Have new pointer, so up ref count */
#	Line 404 | Line 498 | add_msg_element(struct MessageTree *mtre
498		*
499		* Then it pops up the recurse stack. As it comes back up the recurse
500		* The code checks to see if the child now has no pointers or msg
501	<	* i.e. the links count has gone to zero. If its no longer used, the
501	>	* i.e. the links count has gone to zero. If it's no longer used, the
502		* child struct MessageTree can be deleted. The parent reference
503		* to this child is then removed and the parents link count goes down.
504		* Thus, we continue to go back up removing all unused MessageTree(s)
#	Line 412 | Line 506 | add_msg_element(struct MessageTree *mtre
506		static void
507		del_msg_element(struct MessageTree *mtree_p, const char *cmd)
508		{
509	<	struct MessageTree *ntree_p;
509	>	struct MessageTree *ntree_p = NULL;
510
511		/*
512		* In case this is called for a nonexistent command
513		* check that there is a msg pointer here, else links-- goes -ve
514		* -db
515		*/
516	<	if ((*cmd == '\0') && (mtree_p->msg != NULL))
516	>	if (*cmd == '\0' && mtree_p->msg)
517		{
518		mtree_p->msg = NULL;
519		mtree_p->links--;
520		}
521		else
522		{
523	<	if ((ntree_p = mtree_p->pointers[*cmd & (MAXPTRLEN - 1)]) != NULL)
523	>	if ((ntree_p = mtree_p->pointers[*cmd & (MAXPTRLEN - 1)]))
524		{
525		del_msg_element(ntree_p, cmd + 1);
526
#	Line 434 | Line 528 | del_msg_element(struct MessageTree *mtre
528		{
529		mtree_p->pointers[*cmd & (MAXPTRLEN - 1)] = NULL;
530		mtree_p->links--;
531	<	MyFree(ntree_p);
531	>	xfree(ntree_p);
532		}
533		}
534		}
#	Line 451 | Line 545 | static struct Message *
545		msg_tree_parse(const char *cmd)
546		{
547		struct MessageTree *mtree = &msg_tree;
548	<	assert(cmd && *cmd);
548	>
549	>	assert(!EmptyString(cmd));
550
551		while (IsAlpha(*cmd) && (mtree = mtree->pointers[*cmd & (MAXPTRLEN - 1)]))
552		if (*++cmd == '\0')
#	Line 465 | Line 560 | msg_tree_parse(const char *cmd)
560		* inputs       - pointer to struct Message
561		* output       - none
562		* side effects - load this one command name
468	–	*                msg->count msg->bytes is modified in place, in
469	–	*                modules address space. Might not want to do that...
563		*/
564		void
565		mod_add_cmd(struct Message *msg)
566		{
567	<	assert(msg && msg->cmd);
568	<
476	<	/* command already added? */
477	<	if (msg_tree_parse(msg->cmd))
478	<	return;
567	>	assert(msg);
568	>	assert(msg->cmd);
569
570	<	add_msg_element(&msg_tree, msg, msg->cmd);
571	<	msg->count = msg->rcount = msg->bytes = 0;
570	>	/* Command already added? */
571	>	if (msg_tree_parse(msg->cmd) == NULL)
572	>	add_msg_element(&msg_tree, msg, msg->cmd);
573		}
574
575		/* mod_del_cmd()
#	Line 490 | Line 581 | mod_add_cmd(struct Message *msg)
581		void
582		mod_del_cmd(struct Message *msg)
583		{
584	<	assert(msg && msg->cmd);
584	>	assert(msg);
585	>	assert(msg->cmd);
586
587	<	del_msg_element(&msg_tree, msg->cmd);
587	>	if (msg_tree_parse(msg->cmd))
588	>	del_msg_element(&msg_tree, msg->cmd);
589		}
590
591		/* find_command()
#	Line 510 | Line 603 | find_command(const char *cmd)
603		static void
604		recurse_report_messages(struct Client *source_p, const struct MessageTree *mtree)
605		{
606	<	unsigned int i;
607	<
608	<	if (mtree->msg != NULL)
609	<	sendto_one(source_p, form_str(RPL_STATSCOMMANDS),
610	<	me.name, source_p->name, mtree->msg->cmd,
518	<	mtree->msg->count, mtree->msg->bytes,
519	<	mtree->msg->rcount);
606	>	if (mtree->msg)
607	>	sendto_one_numeric(source_p, &me, RPL_STATSCOMMANDS,
608	>	mtree->msg->cmd,
609	>	mtree->msg->count, mtree->msg->bytes,
610	>	mtree->msg->rcount);
611
612	<	for (i = 0; i < MAXPTRLEN; ++i)
613	<	if (mtree->pointers[i] != NULL)
612	>	for (unsigned int i = 0; i < MAXPTRLEN; ++i)
613	>	if (mtree->pointers[i])
614		recurse_report_messages(source_p, mtree->pointers[i]);
615		}
616
#	Line 532 | Line 623 | recurse_report_messages(struct Client *s
623		void
624		report_messages(struct Client *source_p)
625		{
626	<	const struct MessageTree *mtree = &msg_tree;
536	<	unsigned int i;
626	>	const struct MessageTree *const mtree = &msg_tree;
627
628	<	for (i = 0; i < MAXPTRLEN; ++i)
629	<	if (mtree->pointers[i] != NULL)
628	>	for (unsigned int i = 0; i < MAXPTRLEN; ++i)
629	>	if (mtree->pointers[i])
630		recurse_report_messages(source_p, mtree->pointers[i]);
631		}
632
543	–	/* cancel_clients()
544	–	*
545	–	* inputs       -
546	–	* output       -
547	–	* side effects -
548	–	*/
549	–	static int
550	–	cancel_clients(struct Client *client_p, struct Client *source_p, char *cmd)
551	–	{
552	–	/*
553	–	* Kill all possible points that are causing confusion here,
554	–	* I'm not sure I've got this all right...
555	–	* - avalon
556	–	*
557	–	* Knowing avalon, probably not.
558	–	*/
559	–
560	–	/*
561	–	* With TS, fake prefixes are a common thing, during the
562	–	* connect burst when there's a nick collision, and they
563	–	* must be ignored rather than killed because one of the
564	–	* two is surviving.. so we don't bother sending them to
565	–	* all ops everytime, as this could send 'private' stuff
566	–	* from lagged clients. we do send the ones that cause
567	–	* servers to be dropped though, as well as the ones from
568	–	* non-TS servers -orabidoo
569	–	*/
570	–	/*
571	–	* Incorrect prefix for a server from some connection. If it is a
572	–	* client trying to be annoying, just QUIT them, if it is a server
573	–	* then the same deal.
574	–	*/
575	–	if (IsServer(source_p) || IsMe(source_p))
576	–	{
577	–	sendto_realops_flags(UMODE_DEBUG, L_ADMIN, SEND_NOTICE,
578	–	"Message for %s[%s] from %s",
579	–	source_p->name, source_p->from->name,
580	–	get_client_name(client_p, SHOW_IP));
581	–	sendto_realops_flags(UMODE_DEBUG, L_OPER, SEND_NOTICE,
582	–	"Message for %s[%s] from %s",
583	–	source_p->name, source_p->from->name,
584	–	get_client_name(client_p, MASK_IP));
585	–	sendto_realops_flags(UMODE_DEBUG, L_ALL, SEND_NOTICE,
586	–	"Not dropping server %s (%s) for Fake Direction",
587	–	client_p->name, source_p->name);
588	–	return -1;
589	–	/* return exit_client(client_p, client_p, &me, "Fake Direction");*/
590	–	}
591	–
592	–	/*
593	–	* Ok, someone is trying to impose as a client and things are
594	–	* confused. If we got the wrong prefix from a server, send out a
595	–	* kill, else just exit the lame client.
596	–	*/
597	–	/*
598	–	* If the fake prefix is coming from a TS server, discard it
599	–	* silently -orabidoo
600	–	*
601	–	* all servers must be TS these days --is
602	–	*/
603	–	sendto_realops_flags(UMODE_DEBUG, L_ADMIN, SEND_NOTICE,
604	–	"Message for %s[%s@%s!%s] from %s (TS, ignored)",
605	–	source_p->name, source_p->username, source_p->host,
606	–	source_p->from->name, get_client_name(client_p, SHOW_IP));
607	–	sendto_realops_flags(UMODE_DEBUG, L_OPER, SEND_NOTICE,
608	–	"Message for %s[%s@%s!%s] from %s (TS, ignored)",
609	–	source_p->name, source_p->username, source_p->host,
610	–	source_p->from->name, get_client_name(client_p, MASK_IP));
611	–
612	–	return 0;
613	–	}
614	–
615	–	/* remove_unknown()
616	–	*
617	–	* inputs       -
618	–	* output       -
619	–	* side effects -
620	–	*/
621	–	static void
622	–	remove_unknown(struct Client *client_p, char *lsender, char *lbuffer)
623	–	{
624	–	/*
625	–	* Do kill if it came from a server because it means there is a ghost
626	–	* user on the other server which needs to be removed. -avalon
627	–	* Tell opers about this. -Taner
628	–	*/
629	–	/*
630	–	* '[0-9]something'  is an ID      (KILL/SQUIT depending on its length)
631	–	* 'nodots'          is a nickname (KILL)
632	–	* 'no.dot.at.start' is a server   (SQUIT)
633	–	*/
634	–	if ((IsDigit(*lsender) && strlen(lsender) <= IRC_MAXSID) ||
635	–	strchr(lsender, '.') != NULL)
636	–	{
637	–	sendto_realops_flags(UMODE_DEBUG, L_ADMIN, SEND_NOTICE,
638	–	"Unknown prefix (%s) from %s, Squitting %s",
639	–	lbuffer, get_client_name(client_p, SHOW_IP), lsender);
640	–	sendto_realops_flags(UMODE_DEBUG, L_OPER, SEND_NOTICE,
641	–	"Unknown prefix (%s) from %s, Squitting %s",
642	–	lbuffer, client_p->name, lsender);
643	–	sendto_one(client_p, ":%s SQUIT %s :(Unknown prefix (%s) from %s)",
644	–	me.name, lsender, lbuffer, client_p->name);
645	–	}
646	–	else
647	–	sendto_one(client_p, ":%s KILL %s :%s (Unknown Client)",
648	–	me.name, lsender, me.name);
649	–	}
650	–
651	–	/*
652	–	*
653	–	*      parc    number of arguments ('sender' counted as one!)
654	–	*      parv[0] pointer to 'sender' (may point to empty string) (not used)
655	–	*      parv[1]..parv[parc-1]
656	–	*              pointers to additional parameters, this is a NULL
657	–	*              terminated list (parv[parc] == NULL).
658	–	*
659	–	* *WARNING*
660	–	*      Numerics are mostly error reports. If there is something
661	–	*      wrong with the message, just *DROP* it! Don't even think of
662	–	*      sending back a neat error message -- big danger of creating
663	–	*      a ping pong error message...
664	–	*
665	–	* Rewritten by Nemesi, Jan 1999, to support numeric nicks in parv[1]
666	–	*
667	–	* Called when we get a numeric message from a remote _server_ and we are
668	–	* supposed to forward it somewhere. Note that we always ignore numerics sent
669	–	* to 'me' and simply drop the message if we can't handle with this properly:
670	–	* the savvy approach is NEVER generate an error in response to an... error :)
671	–	*/
672	–	static void
673	–	handle_numeric(char numeric[], struct Client *client_p, struct Client *source_p,
674	–	int parc, char *parv[])
675	–	{
676	–	struct Client *target_p = NULL;
677	–	struct Channel *chptr = NULL;
678	–
679	–	/*
680	–	* Avoid trash, we need it to come from a server and have a target
681	–	*/
682	–	if (parc < 2 || !IsServer(source_p))
683	–	return;
684	–
685	–	/*
686	–	* Who should receive this message ? Will we do something with it ?
687	–	* Note that we use findUser functions, so the target can't be neither
688	–	* a server, nor a channel (?) nor a list of targets (?) .. u2.10
689	–	* should never generate numeric replies to non-users anyway
690	–	* Ahem... it can be a channel actually, csc bots use it :\ --Nem
691	–	*/
692	–	if (IsChanPrefix(*parv[1]))
693	–	chptr = hash_find_channel(parv[1]);
694	–	else
695	–	target_p = find_person(client_p, parv[1]);
696	–
697	–	if (((!target_p) || (target_p->from == client_p)) && !chptr)
698	–	return;
699	–
700	–	/*
701	–	* Remap low number numerics, not that I understand WHY.. --Nemesi
702	–	*/
703	–	/*
704	–	* Numerics below 100 talk about the current 'connection', you're not
705	–	* connected to a remote server so it doesn't make sense to send them
706	–	* remotely - but the information they contain may be useful, so we
707	–	* remap them up. Weird, but true.  -- Isomer
708	–	*/
709	–	if (numeric[0] == '0')
710	–	numeric[0] = '1';
711	–
712	–	if (target_p)
713	–	{
714	–	/* Fake it for server hiding, if its our client */
715	–	if (ConfigServerHide.hide_servers && MyClient(target_p) &&
716	–	!HasUMode(target_p, UMODE_OPER))
717	–	sendto_one(target_p, ":%s %s %s %s", me.name, numeric, target_p->name, parv[2]);
718	–	else
719	–	sendto_one(target_p, ":%s %s %s %s", ID_or_name(source_p, target_p->from),
720	–	numeric, ID_or_name(target_p, target_p->from), parv[2]);
721	–	}
722	–	else
723	–	sendto_channel_local(ALL_MEMBERS, 0, chptr, ":%s %s %s %s",
724	–	source_p->name, numeric, chptr->chname, parv[2]);
725	–	}
726	–
633		/* m_not_oper()
634		* inputs       -
635		* output       -
636		* side effects - just returns a nastyogram to given user
637		*/
638		void
639	<	m_not_oper(struct Client *client_p, struct Client *source_p,
734	<	int parc, char *parv[])
639	>	m_not_oper(struct Client *source_p, int parc, char *parv[])
640		{
641	<	sendto_one(source_p, form_str(ERR_NOPRIVILEGES),
737	<	me.name, source_p->name);
641	>	sendto_one_numeric(source_p, &me, ERR_NOPRIVILEGES);
642		}
643
644		void
645	<	m_unregistered(struct Client *client_p, struct Client *source_p,
742	<	int parc, char *parv[])
645	>	m_unregistered(struct Client *source_p, int parc, char *parv[])
646		{
647	<	sendto_one(source_p, form_str(ERR_NOTREGISTERED), me.name,
745	<	source_p->name[0] ? source_p->name : "*");
647	>	sendto_one_numeric(source_p, &me, ERR_NOTREGISTERED);
648		}
649
650		void
651	<	m_registered(struct Client *client_p, struct Client *source_p,
750	<	int parc, char *parv[])
651	>	m_registered(struct Client *source_p, int parc, char *parv[])
652		{
653	<	sendto_one(source_p, form_str(ERR_ALREADYREGISTRED),
753	<	me.name, source_p->name);
653	>	sendto_one_numeric(source_p, &me, ERR_ALREADYREGISTRED);
654		}
655
656		void
657	<	m_ignore(struct Client *client_p, struct Client *source_p,
758	<	int parc, char *parv[])
657	>	m_ignore(struct Client *source_p, int parc, char *parv[])
658		{
659		return;
660		}

Comparing ircd-hybrid/trunk/src/parse.c (property svn:keywords):
Revision 2786 by michael, Mon Jan 6 22:33:53 2014 UTC vs.
Revision 9101 by michael, Wed Jan 1 09:58:45 2020 UTC

#	Line 1 | Line 1
1	<	Id Revision
1	>	Id

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