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root/svn/ircd-hybrid/trunk/src/parse.c

Comparing ircd-hybrid/trunk/src/parse.c (file contents):
Revision 3099 by michael, Wed Mar 5 16:40:37 2014 UTC vs.
Revision 8664 by michael, Thu Nov 22 14:26:32 2018 UTC

#	Line 1 | Line 1
1		/*
2		*  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3		*
4	<	*  Copyright (c) 1997-2014 ircd-hybrid development team
4	>	*  Copyright (c) 1997-2018 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 15 | 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
#	Line 29 | 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 36 | 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
43
44		/*
#	Line 72 | Line 73
73		* Diane Bruce (Dianora), June 6 2003
74		*/
75
76	<	#define MAXPTRLEN 32
77	<	/* Must be a power of 2, and
78	<	* larger than 26 [a-z]|[A-Z]
79	<	* its used to allocate the set
80	<	* of pointers at each node of the tree
81	<	* There are MAXPTRLEN pointers at each node.
82	<	* Obviously, there have to be more pointers
83	<	* Than ASCII letters. 32 is a nice number
84	<	* since there is then no need to shift
85	<	* 'A'/'a' to base 0 index, at the expense
86	<	* of a few never used pointers. For a small
86	<	* parser like this, this is a good compromise
87	<	* and does make it somewhat faster.
88	<	*
89	<	* - Dianora
90	<	*/
76	>	/*
77	>	* Must be a power of 2, and larger than 26 [a-z]|[A-Z]. It's used to allocate
78	>	* the set of pointers at each node of the tree.
79	>	* There are MAXPTRLEN pointers at each node. Obviously, there have to be more
80	>	* pointers than ASCII letters. 32 is a nice number since there is then no need
81	>	* to shift 'A'/'a' to base 0 index, at the expense of a few never used
82	>	* pointers.
83	>	* For a small parser like this, this is a good compromise and does
84	>	* make it somewhat faster. - Dianora
85	>	*/
86	>	enum { MAXPTRLEN = 32 };
87
88	<	struct MessageTree
88	>
89	>	static struct MessageTree
90		{
91		int links; /* Count of all pointers (including msg) at this node
92		* used as reference count for deletion of _this_ node.
93		*/
94		struct Message *msg;
95		struct MessageTree *pointers[MAXPTRLEN];
96	<	};
96	>	} msg_tree;
97	>
98
99	<	static struct MessageTree msg_tree;
99	>	/* remove_unknown()
100	>	*
101	>	* inputs       -
102	>	* output       -
103	>	* side effects -
104	>	*/
105	>	static void
106	>	parse_remove_unknown(struct Client *client_p, const char *lsender, char *lbuffer)
107	>	{
108	>	/*
109	>	* Do kill if it came from a server because it means there is a ghost
110	>	* user on the other server which needs to be removed. -avalon
111	>	* Tell opers about this. -Taner
112	>	*/
113	>	/*
114	>	* '[0-9]something'  is an ID      (KILL/SQUIT depending on its length)
115	>	* 'nodots'          is a nickname (KILL)
116	>	* 'no.dot.at.start' is a server   (SQUIT)
117	>	*/
118	>	if ((IsDigit(*lsender) && strlen(lsender) <= IRC_MAXSID) || strchr(lsender, '.'))
119	>	{
120	>	sendto_realops_flags(UMODE_DEBUG, L_ADMIN, SEND_NOTICE,
121	>	"Unknown prefix (%s) from %s, Squitting %s",
122	>	lbuffer, client_get_name(client_p, SHOW_IP), lsender);
123	>	sendto_realops_flags(UMODE_DEBUG, L_OPER, SEND_NOTICE,
124	>	"Unknown prefix (%s) from %s, Squitting %s",
125	>	lbuffer, client_get_name(client_p, MASK_IP), lsender);
126	>	sendto_one(client_p, ":%s SQUIT %s :(Unknown prefix (%s) from %s)",
127	>	me.id, lsender, lbuffer, client_p->name);
128	>	}
129	>	else
130	>	sendto_one(client_p, ":%s KILL %s :%s (Unknown Client)",
131	>	me.id, lsender, me.name);
132	>	}
133
134		/*
135	<	* NOTE: parse() should not be called recursively by other functions!
135	>	*
136	>	*      parc    number of arguments ('sender' counted as one!)
137	>	*      parv[0] pointer to 'sender' (may point to empty string) (not used)
138	>	*      parv[1]..parv[parc-1]
139	>	*              pointers to additional parameters, this is a NULL
140	>	*              terminated list (parv[parc] == NULL).
141	>	*
142	>	* *WARNING*
143	>	*      Numerics are mostly error reports. If there is something
144	>	*      wrong with the message, just *DROP* it! Don't even think of
145	>	*      sending back a neat error message -- big danger of creating
146	>	*      a ping pong error message...
147	>	*
148	>	* Rewritten by Nemesi, Jan 1999, to support numeric nicks in parv[1]
149	>	*
150	>	* Called when we get a numeric message from a remote _server_ and we are
151	>	* supposed to forward it somewhere. Note that we always ignore numerics sent
152	>	* to 'me' and simply drop the message if we can't handle with this properly:
153	>	* the savvy approach is NEVER generate an error in response to an... error :)
154		*/
155	<	static char *para[MAXPARA + 2]; /* <command> + <params> + NULL */
155	>	static void
156	>	parse_handle_numeric(unsigned int numeric, struct Client *source_p, int parc, char *parv[])
157	>	{
158	>	struct Client *target_p = NULL;
159	>	struct Channel *chptr = NULL;
160
161	<	static int cancel_clients(struct Client *, struct Client *, char *);
162	<	static void remove_unknown(struct Client *, char *, char *);
163	<	static void handle_numeric(char[], struct Client *, struct Client *, int, char *[]);
164	<	static void handle_command(struct Message *, struct Client *, struct Client *, unsigned int, char *[]);
161	>	/*
162	>	* Avoid trash, we need it to come from a server and have a target
163	>	*/
164	>	if (parc < 2 || !IsServer(source_p))
165	>	return;
166
167	+	/*
168	+	* Who should receive this message ? Will we do something with it ?
169	+	* Note that we use findUser functions, so the target can't be neither
170	+	* a server, nor a channel (?) nor a list of targets (?) .. u2.10
171	+	* should never generate numeric replies to non-users anyway
172	+	* Ahem... it can be a channel actually, csc bots use it :\ --Nem
173	+	*/
174	+	if (IsChanPrefix(*parv[1]))
175	+	chptr = hash_find_channel(parv[1]);
176	+	else
177	+	target_p = find_person(source_p, parv[1]);
178	+
179	+	if ((target_p == NULL || target_p->from == source_p->from) && chptr == NULL)
180	+	return;
181	+
182	+	/*
183	+	* Remap low number numerics, not that I understand WHY.. --Nemesi
184	+	*/
185	+	/*
186	+	* Numerics below 100 talk about the current 'connection', you're not
187	+	* connected to a remote server so it doesn't make sense to send them
188	+	* remotely - but the information they contain may be useful, so we
189	+	* remap them up. Weird, but true.  -- Isomer
190	+	*/
191	+	if (numeric < 100)
192	+	numeric += 100;
193	+
194	+	if (target_p)
195	+	{
196	+	/* Fake it for server hiding, if it's our client */
197	+	if ((ConfigServerHide.hide_servers || IsHidden(source_p)) && MyConnect(target_p) &&
198	+	!HasUMode(target_p, UMODE_OPER))
199	+	sendto_one_numeric(target_p, &me, numeric | SND_EXPLICIT, "%s", parv[2]);
200	+	else
201	+	sendto_one_numeric(target_p, source_p, numeric | SND_EXPLICIT, "%s", parv[2]);
202	+	}
203	+	else
204	+	sendto_channel_butone(source_p, source_p, chptr, 0, "%u %s %s",
205	+	numeric, chptr->name, parv[2]);
206	+	}
207	+
208	+	/* handle_command()
209	+	*
210	+	* inputs       - pointer to message block
211	+	*              - pointer to client
212	+	*              - pointer to client message is from
213	+	*              - count of number of args
214	+	*              - pointer to argv[] array
215	+	* output       - -1 if error from server
216	+	* side effects -
217	+	*/
218	+	static void
219	+	parse_handle_command(struct Message *message, struct Client *source_p,
220	+	unsigned int i, char *para[])
221	+	{
222	+	if (IsServer(source_p->from))
223	+	++message->rcount;
224	+
225	+	++message->count;
226	+
227	+	/* Check right amount of parameters is passed... --is */
228	+	if (i < message->args_min)
229	+	sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, message->cmd);
230	+	else
231	+	message->handlers[source_p->from->handler](source_p, i, para);
232	+	}
233
234		/*
235		* parse a buffer.
#	Line 120 | Line 240 | void
240		parse(struct Client *client_p, char *pbuffer, char *bufend)
241		{
242		struct Client *from = client_p;
243	<	struct Message *msg_ptr = NULL;
243	>	struct Message *message = NULL;
244	>	char *para[MAXPARA + 2];  /* <command> + <parameters> + NULL */
245		char *ch = NULL;
246		char *s = NULL;
247	<	char *numeric = NULL;
247	>	unsigned int numeric = 0;
248		unsigned int parc = 0;
249		unsigned int paramcount;
250
251		if (IsDefunct(client_p))
252		return;
253
254	<	assert(client_p->localClient->fd.flags.open);
254	>	assert(client_p->connection);
255	>	assert(client_p->connection->fd);
256	>	assert(client_p->connection->fd->flags.open);
257	>
258	>
259		assert((bufend - pbuffer) < IRCD_BUFSIZE);
260
261	<	for (ch = pbuffer; *ch == ' '; ++ch)  /* skip spaces */
262	<	/* null statement */  ;
261	>	for (ch = pbuffer; *ch == ' '; ++ch)  /* Skip spaces */
262	>	;
263
264		if (*ch == ':')
265		{
#	Line 142 | Line 267 | parse(struct Client *client_p, char *pbu
267		* Copy the prefix to 'sender' assuming it terminates
268		* with SPACE (or NULL, which is an error, though).
269		*/
270	<	char *sender = ++ch;
270	>	const char *const sender = ++ch;
271
272	<	if ((s = strchr(ch, ' ')) != NULL)
272	>	if ((s = strchr(ch, ' ')))
273		{
274		*s = '\0';
275		ch = ++s;
#	Line 152 | Line 277 | parse(struct Client *client_p, char *pbu
277
278		if (*sender && IsServer(client_p))
279		{
280	<	if ((from = find_person(client_p, sender)) == NULL)
281	<	from = hash_find_server(sender);
280	>	if ((from = hash_find_id(sender)) == NULL)
281	>	from = hash_find_client(sender);
282
283		/*
284		* Hmm! If the client corresponding to the prefix is not found--what is
#	Line 163 | Line 288 | parse(struct Client *client_p, char *pbu
288		if (from == NULL)
289		{
290		++ServerStats.is_unpf;
291	<	remove_unknown(client_p, sender, pbuffer);
291	>	parse_remove_unknown(client_p, sender, pbuffer);
292		return;
293		}
294
295		if (from->from != client_p)
296		{
297		++ServerStats.is_wrdi;
298	<	cancel_clients(client_p, from, pbuffer);
298	>	sendto_realops_flags(UMODE_DEBUG, L_ADMIN, SEND_NOTICE,
299	>	"Fake direction: dropped message from %s[%s] via %s",
300	>	from->name, from->from->name,
301	>	client_get_name(client_p, SHOW_IP));
302	>	sendto_realops_flags(UMODE_DEBUG, L_OPER, SEND_NOTICE,
303	>	"Fake direction: dropped message from %s[%s] via %s",
304	>	from->name, from->from->name,
305	>	client_get_name(client_p, MASK_IP));
306		return;
307		}
308		}
#	Line 193 | Line 325 | parse(struct Client *client_p, char *pbu
325		* code. -avalon
326		*/
327
328	<	/* EOB is 3 chars long but is not a numeric */
329	<	if (*(ch + 3) == ' ' && /* ok, lets see if its a possible numeric.. */
328	>	/* EOB is 3 characters long but is not a numeric */
329	>	if (*(ch + 3) == ' ' &&  /* Ok, let's see if it's a possible numeric */
330		IsDigit(*ch) && IsDigit(*(ch + 1)) && IsDigit(*(ch + 2)))
331		{
332	<	numeric = ch;
333	<	paramcount = 2;  /* destination, and the rest of it */
332	>	numeric = (*ch - '0') * 100 + (*(ch + 1) - '0') * 10 + (*(ch + 2) - '0');
333	>	paramcount = 2;  /* Destination, and the rest of it */
334		++ServerStats.is_num;
335	<	s = ch + 3;  /* I know this is ' ' from above if            */
336	<	*s++ = '\0';  /* blow away the ' ', and point s to next part */
335	>	s = ch + 3;  /* I know this is ' ' from above if */
336	>	*s++ = '\0';  /* Blow away the ' ', and point s to next part */
337		}
338		else
339		{
340	<	unsigned int ii = 0;
209	<
210	<	if ((s = strchr(ch, ' ')) != NULL)
340	>	if ((s = strchr(ch, ' ')))
341		*s++ = '\0';
342
343	<	if ((msg_ptr = find_command(ch)) == NULL)
343	>	if ((message = find_command(ch)) == NULL)
344		{
345		/*
346		* Note: Give error message *only* to recognized
#	Line 223 | Line 353 | parse(struct Client *client_p, char *pbu
353		* Hm, when is the buffer empty -- if a command
354		* code has been found ?? -Armin
355		*/
356	<	if (*pbuffer != '\0')
227	<	{
356	>	if (*pbuffer)
357		if (IsClient(from))
358	<	sendto_one(from, form_str(ERR_UNKNOWNCOMMAND),
230	<	me.name, from->name, ch);
231	<	}
358	>	sendto_one_numeric(from, &me, ERR_UNKNOWNCOMMAND, ch);
359
360		++ServerStats.is_unco;
361		return;
362		}
363
364	<	assert(msg_ptr->cmd != NULL);
364	>	assert(message->cmd);
365
366	<	paramcount = msg_ptr->args_max;
367	<	ii = bufend - ((s) ? s : ch);
368	<	msg_ptr->bytes += ii;
366	>	paramcount = message->args_max;
367	>
368	>	size_t length = bufend - ((s) ? s : ch);
369	>	message->bytes += length;
370		}
371
372		/*
#	Line 248 | Line 376 | parse(struct Client *client_p, char *pbu
376		* this last parameter (about same effect as ":" has...) --msa
377		*/
378
379	<	/* Note initially true: s==NULL || *(s-1) == '\0' !! */
379	>	/* Note initially true: s == NULL || *(s - 1) == '\0' !! */
380
381		para[parc] = ch;
382
383	+	if (message && (message->flags & MFLG_EXTRA))
384	+	{
385	+	/*
386	+	* XXX: This will have to go away after the command handler rewrite
387	+	*/
388	+	para[++parc] = message->extra;
389	+	}
390	+
391		if (s)
392		{
393		if (paramcount > MAXPARA)
394		paramcount = MAXPARA;
395
396	<	while (1)
396	>	while (true)
397		{
398		while (*s == ' ')
399		*s++ = '\0';
#	Line 267 | Line 403 | parse(struct Client *client_p, char *pbu
403
404		if (*s == ':')
405		{
406	<	/* The rest is a single parameter */
407	<	para[++parc] = s + (!numeric);  /* keep the colon if it's a numeric */
406	>	/* The rest is single parameter--can include blanks also. */
407	>	para[++parc] = s + (numeric == 0);  /* Keep the colon if it's a numeric */
408		break;
409		}
410
#	Line 284 | Line 420 | parse(struct Client *client_p, char *pbu
420
421		para[++parc] = NULL;
422
423	<	if (msg_ptr != NULL)
424	<	handle_command(msg_ptr, client_p, from, parc, para);
423	>	if (message)
424	>	parse_handle_command(message, from, parc, para);
425		else
426	<	handle_numeric(numeric, client_p, from, parc, para);
291	<	}
292	<
293	<	/* handle_command()
294	<	*
295	<	* inputs       - pointer to message block
296	<	*              - pointer to client
297	<	*              - pointer to client message is from
298	<	*              - count of number of args
299	<	*              - pointer to argv[] array
300	<	* output       - -1 if error from server
301	<	* side effects -
302	<	*/
303	<	static void
304	<	handle_command(struct Message *mptr, struct Client *client_p,
305	<	struct Client *from, unsigned int i, char *hpara[])
306	<	{
307	<	MessageHandler handler = 0;
308	<
309	<	if (IsServer(client_p))
310	<	mptr->rcount++;
311	<
312	<	mptr->count++;
313	<
314	<	handler = mptr->handlers[client_p->handler];
315	<
316	<	/* check right amount of params is passed... --is */
317	<	if (i < mptr->args_min)
318	<	{
319	<	if (!IsServer(client_p))
320	<	{
321	<	sendto_one(client_p, form_str(ERR_NEEDMOREPARAMS), me.name,
322	<	client_p->name[0] ? client_p->name : "*", mptr->cmd);
323	<	}
324	<	else
325	<	{
326	<	sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
327	<	"Dropping server %s due to (invalid) command '%s' "
328	<	"with only %d arguments (expecting %d).",
329	<	client_p->name, mptr->cmd, i, mptr->args_min);
330	<	ilog(LOG_TYPE_IRCD, "Insufficient parameters (%d) for command '%s' from %s.",
331	<	i, mptr->cmd, client_p->name);
332	<	exit_client(client_p, client_p,
333	<	"Not enough arguments to server command.");
334	<	}
335	<	}
336	<	else
337	<	(*handler)(client_p, from, i, hpara);
426	>	parse_handle_numeric(numeric, from, parc, para);
427		}
428
429		/* add_msg_element()
#	Line 361 | Line 450 | static void
450		add_msg_element(struct MessageTree *mtree_p, struct Message *msg_p,
451		const char *cmd)
452		{
453	<	struct MessageTree *ntree_p;
453	>	struct MessageTree *ntree_p = NULL;
454
455		if (*cmd == '\0')
456		{
#	Line 378 | Line 467 | add_msg_element(struct MessageTree *mtre
467		*/
468		if ((ntree_p = mtree_p->pointers[*cmd & (MAXPTRLEN - 1)]) == NULL)
469		{
470	<	ntree_p = MyMalloc(sizeof(struct MessageTree));
470	>	ntree_p = xcalloc(sizeof(*ntree_p));
471		mtree_p->pointers[*cmd & (MAXPTRLEN - 1)] = ntree_p;
472
473		mtree_p->links++;  /* Have new pointer, so up ref count */
#	Line 406 | Line 495 | add_msg_element(struct MessageTree *mtre
495		*
496		* Then it pops up the recurse stack. As it comes back up the recurse
497		* The code checks to see if the child now has no pointers or msg
498	<	* i.e. the links count has gone to zero. If its no longer used, the
498	>	* i.e. the links count has gone to zero. If it's no longer used, the
499		* child struct MessageTree can be deleted. The parent reference
500		* to this child is then removed and the parents link count goes down.
501		* Thus, we continue to go back up removing all unused MessageTree(s)
#	Line 414 | Line 503 | add_msg_element(struct MessageTree *mtre
503		static void
504		del_msg_element(struct MessageTree *mtree_p, const char *cmd)
505		{
506	<	struct MessageTree *ntree_p;
506	>	struct MessageTree *ntree_p = NULL;
507
508		/*
509		* In case this is called for a nonexistent command
510		* check that there is a msg pointer here, else links-- goes -ve
511		* -db
512		*/
513	<	if ((*cmd == '\0') && (mtree_p->msg != NULL))
513	>	if (*cmd == '\0' && mtree_p->msg)
514		{
515		mtree_p->msg = NULL;
516		mtree_p->links--;
517		}
518		else
519		{
520	<	if ((ntree_p = mtree_p->pointers[*cmd & (MAXPTRLEN - 1)]) != NULL)
520	>	if ((ntree_p = mtree_p->pointers[*cmd & (MAXPTRLEN - 1)]))
521		{
522		del_msg_element(ntree_p, cmd + 1);
523
#	Line 436 | Line 525 | del_msg_element(struct MessageTree *mtre
525		{
526		mtree_p->pointers[*cmd & (MAXPTRLEN - 1)] = NULL;
527		mtree_p->links--;
528	<	MyFree(ntree_p);
528	>	xfree(ntree_p);
529		}
530		}
531		}
#	Line 453 | Line 542 | static struct Message *
542		msg_tree_parse(const char *cmd)
543		{
544		struct MessageTree *mtree = &msg_tree;
545	<	assert(cmd && *cmd);
545	>
546	>	assert(!EmptyString(cmd));
547
548		while (IsAlpha(*cmd) && (mtree = mtree->pointers[*cmd & (MAXPTRLEN - 1)]))
549		if (*++cmd == '\0')
#	Line 467 | Line 557 | msg_tree_parse(const char *cmd)
557		* inputs       - pointer to struct Message
558		* output       - none
559		* side effects - load this one command name
470	–	*                msg->count msg->bytes is modified in place, in
471	–	*                modules address space. Might not want to do that...
560		*/
561		void
562		mod_add_cmd(struct Message *msg)
563		{
564	<	assert(msg && msg->cmd);
565	<
478	<	/* command already added? */
479	<	if (msg_tree_parse(msg->cmd))
480	<	return;
564	>	assert(msg);
565	>	assert(msg->cmd);
566
567	<	add_msg_element(&msg_tree, msg, msg->cmd);
568	<	msg->count = msg->rcount = msg->bytes = 0;
567	>	/* Command already added? */
568	>	if (msg_tree_parse(msg->cmd) == NULL)
569	>	add_msg_element(&msg_tree, msg, msg->cmd);
570		}
571
572		/* mod_del_cmd()
#	Line 492 | Line 578 | mod_add_cmd(struct Message *msg)
578		void
579		mod_del_cmd(struct Message *msg)
580		{
581	<	assert(msg && msg->cmd);
581	>	assert(msg);
582	>	assert(msg->cmd);
583
584	<	del_msg_element(&msg_tree, msg->cmd);
584	>	if (msg_tree_parse(msg->cmd))
585	>	del_msg_element(&msg_tree, msg->cmd);
586		}
587
588		/* find_command()
#	Line 512 | Line 600 | find_command(const char *cmd)
600		static void
601		recurse_report_messages(struct Client *source_p, const struct MessageTree *mtree)
602		{
603	<	unsigned int i;
604	<
605	<	if (mtree->msg != NULL)
606	<	sendto_one(source_p, form_str(RPL_STATSCOMMANDS),
607	<	me.name, source_p->name, mtree->msg->cmd,
520	<	mtree->msg->count, mtree->msg->bytes,
521	<	mtree->msg->rcount);
603	>	if (mtree->msg)
604	>	sendto_one_numeric(source_p, &me, RPL_STATSCOMMANDS,
605	>	mtree->msg->cmd,
606	>	mtree->msg->count, mtree->msg->bytes,
607	>	mtree->msg->rcount);
608
609	<	for (i = 0; i < MAXPTRLEN; ++i)
610	<	if (mtree->pointers[i] != NULL)
609	>	for (unsigned int i = 0; i < MAXPTRLEN; ++i)
610	>	if (mtree->pointers[i])
611		recurse_report_messages(source_p, mtree->pointers[i]);
612		}
613
#	Line 534 | Line 620 | recurse_report_messages(struct Client *s
620		void
621		report_messages(struct Client *source_p)
622		{
623	<	const struct MessageTree *mtree = &msg_tree;
538	<	unsigned int i;
623	>	const struct MessageTree *const mtree = &msg_tree;
624
625	<	for (i = 0; i < MAXPTRLEN; ++i)
626	<	if (mtree->pointers[i] != NULL)
625	>	for (unsigned int i = 0; i < MAXPTRLEN; ++i)
626	>	if (mtree->pointers[i])
627		recurse_report_messages(source_p, mtree->pointers[i]);
628		}
629
545	–	/* cancel_clients()
546	–	*
547	–	* inputs       -
548	–	* output       -
549	–	* side effects -
550	–	*/
551	–	static int
552	–	cancel_clients(struct Client *client_p, struct Client *source_p, char *cmd)
553	–	{
554	–	/*
555	–	* Kill all possible points that are causing confusion here,
556	–	* I'm not sure I've got this all right...
557	–	* - avalon
558	–	*
559	–	* Knowing avalon, probably not.
560	–	*/
561	–
562	–	/*
563	–	* With TS, fake prefixes are a common thing, during the
564	–	* connect burst when there's a nick collision, and they
565	–	* must be ignored rather than killed because one of the
566	–	* two is surviving.. so we don't bother sending them to
567	–	* all ops everytime, as this could send 'private' stuff
568	–	* from lagged clients. we do send the ones that cause
569	–	* servers to be dropped though, as well as the ones from
570	–	* non-TS servers -orabidoo
571	–	*/
572	–	/*
573	–	* Incorrect prefix for a server from some connection. If it is a
574	–	* client trying to be annoying, just QUIT them, if it is a server
575	–	* then the same deal.
576	–	*/
577	–	if (IsServer(source_p) || IsMe(source_p))
578	–	{
579	–	sendto_realops_flags(UMODE_DEBUG, L_ADMIN, SEND_NOTICE,
580	–	"Message for %s[%s] from %s",
581	–	source_p->name, source_p->from->name,
582	–	get_client_name(client_p, SHOW_IP));
583	–	sendto_realops_flags(UMODE_DEBUG, L_OPER, SEND_NOTICE,
584	–	"Message for %s[%s] from %s",
585	–	source_p->name, source_p->from->name,
586	–	get_client_name(client_p, MASK_IP));
587	–	sendto_realops_flags(UMODE_DEBUG, L_ALL, SEND_NOTICE,
588	–	"Not dropping server %s (%s) for Fake Direction",
589	–	client_p->name, source_p->name);
590	–	return -1;
591	–	/* return exit_client(client_p, client_p, &me, "Fake Direction");*/
592	–	}
593	–
594	–	/*
595	–	* Ok, someone is trying to impose as a client and things are
596	–	* confused. If we got the wrong prefix from a server, send out a
597	–	* kill, else just exit the lame client.
598	–	*/
599	–	/*
600	–	* If the fake prefix is coming from a TS server, discard it
601	–	* silently -orabidoo
602	–	*
603	–	* all servers must be TS these days --is
604	–	*/
605	–	sendto_realops_flags(UMODE_DEBUG, L_ADMIN, SEND_NOTICE,
606	–	"Message for %s[%s@%s!%s] from %s (TS, ignored)",
607	–	source_p->name, source_p->username, source_p->host,
608	–	source_p->from->name, get_client_name(client_p, SHOW_IP));
609	–	sendto_realops_flags(UMODE_DEBUG, L_OPER, SEND_NOTICE,
610	–	"Message for %s[%s@%s!%s] from %s (TS, ignored)",
611	–	source_p->name, source_p->username, source_p->host,
612	–	source_p->from->name, get_client_name(client_p, MASK_IP));
613	–
614	–	return 0;
615	–	}
616	–
617	–	/* remove_unknown()
618	–	*
619	–	* inputs       -
620	–	* output       -
621	–	* side effects -
622	–	*/
623	–	static void
624	–	remove_unknown(struct Client *client_p, char *lsender, char *lbuffer)
625	–	{
626	–	/*
627	–	* Do kill if it came from a server because it means there is a ghost
628	–	* user on the other server which needs to be removed. -avalon
629	–	* Tell opers about this. -Taner
630	–	*/
631	–	/*
632	–	* '[0-9]something'  is an ID      (KILL/SQUIT depending on its length)
633	–	* 'nodots'          is a nickname (KILL)
634	–	* 'no.dot.at.start' is a server   (SQUIT)
635	–	*/
636	–	if ((IsDigit(*lsender) && strlen(lsender) <= IRC_MAXSID) ||
637	–	strchr(lsender, '.') != NULL)
638	–	{
639	–	sendto_realops_flags(UMODE_DEBUG, L_ADMIN, SEND_NOTICE,
640	–	"Unknown prefix (%s) from %s, Squitting %s",
641	–	lbuffer, get_client_name(client_p, SHOW_IP), lsender);
642	–	sendto_realops_flags(UMODE_DEBUG, L_OPER, SEND_NOTICE,
643	–	"Unknown prefix (%s) from %s, Squitting %s",
644	–	lbuffer, client_p->name, lsender);
645	–	sendto_one(client_p, ":%s SQUIT %s :(Unknown prefix (%s) from %s)",
646	–	me.name, lsender, lbuffer, client_p->name);
647	–	}
648	–	else
649	–	sendto_one(client_p, ":%s KILL %s :%s (Unknown Client)",
650	–	me.name, lsender, me.name);
651	–	}
652	–
653	–	/*
654	–	*
655	–	*      parc    number of arguments ('sender' counted as one!)
656	–	*      parv[0] pointer to 'sender' (may point to empty string) (not used)
657	–	*      parv[1]..parv[parc-1]
658	–	*              pointers to additional parameters, this is a NULL
659	–	*              terminated list (parv[parc] == NULL).
660	–	*
661	–	* *WARNING*
662	–	*      Numerics are mostly error reports. If there is something
663	–	*      wrong with the message, just *DROP* it! Don't even think of
664	–	*      sending back a neat error message -- big danger of creating
665	–	*      a ping pong error message...
666	–	*
667	–	* Rewritten by Nemesi, Jan 1999, to support numeric nicks in parv[1]
668	–	*
669	–	* Called when we get a numeric message from a remote _server_ and we are
670	–	* supposed to forward it somewhere. Note that we always ignore numerics sent
671	–	* to 'me' and simply drop the message if we can't handle with this properly:
672	–	* the savvy approach is NEVER generate an error in response to an... error :)
673	–	*/
674	–	static void
675	–	handle_numeric(char numeric[], struct Client *client_p, struct Client *source_p,
676	–	int parc, char *parv[])
677	–	{
678	–	struct Client *target_p = NULL;
679	–	struct Channel *chptr = NULL;
680	–
681	–	/*
682	–	* Avoid trash, we need it to come from a server and have a target
683	–	*/
684	–	if (parc < 2 || !IsServer(source_p))
685	–	return;
686	–
687	–	/*
688	–	* Who should receive this message ? Will we do something with it ?
689	–	* Note that we use findUser functions, so the target can't be neither
690	–	* a server, nor a channel (?) nor a list of targets (?) .. u2.10
691	–	* should never generate numeric replies to non-users anyway
692	–	* Ahem... it can be a channel actually, csc bots use it :\ --Nem
693	–	*/
694	–	if (IsChanPrefix(*parv[1]))
695	–	chptr = hash_find_channel(parv[1]);
696	–	else
697	–	target_p = find_person(client_p, parv[1]);
698	–
699	–	if (((!target_p) || (target_p->from == client_p)) && !chptr)
700	–	return;
701	–
702	–	/*
703	–	* Remap low number numerics, not that I understand WHY.. --Nemesi
704	–	*/
705	–	/*
706	–	* Numerics below 100 talk about the current 'connection', you're not
707	–	* connected to a remote server so it doesn't make sense to send them
708	–	* remotely - but the information they contain may be useful, so we
709	–	* remap them up. Weird, but true.  -- Isomer
710	–	*/
711	–	if (numeric[0] == '0')
712	–	numeric[0] = '1';
713	–
714	–	if (target_p)
715	–	{
716	–	/* Fake it for server hiding, if its our client */
717	–	if (ConfigServerHide.hide_servers && MyClient(target_p) &&
718	–	!HasUMode(target_p, UMODE_OPER))
719	–	sendto_one(target_p, ":%s %s %s %s", me.name, numeric, target_p->name, parv[2]);
720	–	else
721	–	sendto_one(target_p, ":%s %s %s %s", ID_or_name(source_p, target_p),
722	–	numeric, ID_or_name(target_p, target_p), parv[2]);
723	–	}
724	–	else
725	–	sendto_channel_local(ALL_MEMBERS, 0, chptr, ":%s %s %s %s",
726	–	source_p->name, numeric, chptr->chname, parv[2]);
727	–	}
728	–
630		/* m_not_oper()
631		* inputs       -
632		* output       -
633		* side effects - just returns a nastyogram to given user
634		*/
635		int
636	<	m_not_oper(struct Client *client_p, struct Client *source_p,
736	<	int parc, char *parv[])
636	>	m_not_oper(struct Client *source_p, int parc, char *parv[])
637		{
638	<	sendto_one(source_p, form_str(ERR_NOPRIVILEGES),
739	<	me.name, source_p->name);
638	>	sendto_one_numeric(source_p, &me, ERR_NOPRIVILEGES);
639		return 0;
640		}
641
642		int
643	<	m_unregistered(struct Client *client_p, struct Client *source_p,
745	<	int parc, char *parv[])
643	>	m_unregistered(struct Client *source_p, int parc, char *parv[])
644		{
645	<	sendto_one(source_p, form_str(ERR_NOTREGISTERED), me.name,
748	<	source_p->name[0] ? source_p->name : "*");
645	>	sendto_one_numeric(source_p, &me, ERR_NOTREGISTERED);
646		return 0;
647		}
648
649		int
650	<	m_registered(struct Client *client_p, struct Client *source_p,
754	<	int parc, char *parv[])
650	>	m_registered(struct Client *source_p, int parc, char *parv[])
651		{
652	<	sendto_one(source_p, form_str(ERR_ALREADYREGISTRED),
757	<	me.name, source_p->name);
652	>	sendto_one_numeric(source_p, &me, ERR_ALREADYREGISTRED);
653		return 0;
654		}
655
656		int
657	<	m_ignore(struct Client *client_p, struct Client *source_p,
763	<	int parc, char *parv[])
657	>	m_ignore(struct Client *source_p, int parc, char *parv[])
658		{
659		return 0;
660		}

Comparing ircd-hybrid/trunk/src/parse.c (property svn:keywords):
Revision 3099 by michael, Wed Mar 5 16:40:37 2014 UTC vs.
Revision 8664 by michael, Thu Nov 22 14:26:32 2018 UTC

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

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