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Comparing:
ircd-hybrid-8/src/s_serv.c (file contents), Revision 1241 by michael, Thu Sep 29 20:26:09 2011 UTC vs.
ircd-hybrid/trunk/src/s_serv.c (file contents), Revision 3246 by michael, Sun Mar 30 17:37:13 2014 UTC

#	Line 1 | Line 1
1		/*
2	<	*  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3	<	*  s_serv.c: Server related functions.
2	>	*  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3		*
4	<	*  Copyright (C) 2005 by the past and present ircd coders, and others.
4	>	*  Copyright (c) 1997-2014 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 18 | Line 17
17		*  along with this program; if not, write to the Free Software
18		*  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
19		*  USA
20	<	*
21	<	*  $Id$
20	>	*/
21	>
22	>	/*! \file s_serv.c
23	>	* \brief Server related functions.
24	>	* \version $Id$
25		*/
26
27		#include "stdinc.h"
#	Line 31 | Line 33
33		#include "channel.h"
34		#include "channel_mode.h"
35		#include "client.h"
34	–	#include "common.h"
35	–	#include "dbuf.h"
36		#include "event.h"
37		#include "fdlist.h"
38		#include "hash.h"
39		#include "irc_string.h"
40	–	#include "sprintf_irc.h"
40		#include "ircd.h"
41		#include "ircd_defs.h"
42		#include "s_bsd.h"
43		#include "numeric.h"
44		#include "packet.h"
45		#include "irc_res.h"
46	<	#include "s_conf.h"
46	>	#include "conf.h"
47		#include "s_serv.h"
48	<	#include "s_log.h"
48	>	#include "log.h"
49	>	#include "s_misc.h"
50		#include "s_user.h"
51		#include "send.h"
52		#include "memory.h"
53	<	#include "channel.h" /* chcap_usage_counts stuff...*/
53	>	#include "channel.h"
54	>	#include "parse.h"
55
56		#define MIN_CONN_FREQ 300
57
58	+	dlink_list flatten_links;
59		static dlink_list cap_list = { NULL, NULL, 0 };
60		static void server_burst(struct Client *);
59	–	static int fork_server(struct Client *);
61		static void burst_all(struct Client *);
62		static void send_tb(struct Client *client_p, struct Channel *chptr);
63
64		static CNCB serv_connect_callback;
65
65	–	static void start_io(struct Client *);
66		static void burst_members(struct Client *, struct Channel *);
67
68	–	static SlinkRplHnd slink_error;
69	–	static SlinkRplHnd slink_zipstats;
70	–
71	–
72	–	#ifdef HAVE_LIBCRYPTO
73	–	struct EncCapability CipherTable[] =
74	–	{
75	–	#ifdef HAVE_EVP_BF_CFB
76	–	{ "BF/168",     CAP_ENC_BF_168,     24, CIPHER_BF     },
77	–	{ "BF/128",     CAP_ENC_BF_128,     16, CIPHER_BF     },
78	–	#endif
79	–	#ifdef HAVE_EVP_CAST5_CFB
80	–	{ "CAST/128",   CAP_ENC_CAST_128,   16, CIPHER_CAST   },
81	–	#endif
82	–	#ifdef HAVE_EVP_IDEA_CFB
83	–	{ "IDEA/128",   CAP_ENC_IDEA_128,   16, CIPHER_IDEA   },
84	–	#endif
85	–	#ifdef HAVE_EVP_RC5_32_12_16_CFB
86	–	{ "RC5.16/128", CAP_ENC_RC5_16_128, 16, CIPHER_RC5_16 },
87	–	{ "RC5.12/128", CAP_ENC_RC5_12_128, 16, CIPHER_RC5_12 },
88	–	{ "RC5.8/128",  CAP_ENC_RC5_8_128,  16, CIPHER_RC5_8  },
89	–	#endif
90	–	#ifdef HAVE_EVP_DES_EDE3_CFB
91	–	{ "3DES/168",   CAP_ENC_3DES_168,   24, CIPHER_3DES   },
92	–	#endif
93	–	#ifdef HAVE_EVP_DES_CFB
94	–	{ "DES/56",     CAP_ENC_DES_56,      8, CIPHER_DES    },
95	–	#endif
96	–	{ 0,            0,                   0, 0             }
97	–	};
98	–	#endif
99	–
100	–	struct SlinkRplDef slinkrpltab[] = {
101	–	{ SLINKRPL_ERROR,    slink_error,    SLINKRPL_FLAG_DATA },
102	–	{ SLINKRPL_ZIPSTATS, slink_zipstats, SLINKRPL_FLAG_DATA },
103	–	{ 0,                 0,              0 },
104	–	};
105	–
106	–
107	–	void
108	–	slink_error(unsigned int rpl, unsigned int len, unsigned char *data,
109	–	struct Client *server_p)
110	–	{
111	–	assert(rpl == SLINKRPL_ERROR);
112	–	assert(len < 256);
113	–
114	–	data[len-1] = '\0';
115	–
116	–	sendto_realops_flags(UMODE_ALL, L_ALL, "SlinkError for %s: %s",
117	–	server_p->name, data);
118	–	/* XXX should this be exit_client? */
119	–	exit_client(server_p, &me, "servlink error -- terminating link");
120	–	}
121	–
122	–	void
123	–	slink_zipstats(unsigned int rpl, unsigned int len, unsigned char *data,
124	–	struct Client *server_p)
125	–	{
126	–	struct ZipStats zipstats;
127	–	uint64_t in = 0, in_wire = 0, out = 0, out_wire = 0;
128	–	int i = 0;
129	–
130	–	assert(rpl == SLINKRPL_ZIPSTATS);
131	–	assert(len == 16);
132	–	assert(IsCapable(server_p, CAP_ZIP));
133	–
134	–	/* Yes, it needs to be done this way, no we cannot let the compiler
135	–	* work with the pointer to the structure.  This works around a GCC
136	–	* bug on SPARC that affects all versions at the time of this writing.
137	–	* I will feed you to the creatures living in RMS's beard if you do
138	–	* not leave this as is, without being sure that you are not causing
139	–	* regression for most of our installed SPARC base.
140	–	* -jmallett, 04/27/2002
141	–	*/
142	–	memcpy(&zipstats, &server_p->localClient->zipstats, sizeof(struct ZipStats));
143	–
144	–	in |= (data[i++] << 24);
145	–	in |= (data[i++] << 16);
146	–	in |= (data[i++] <<  8);
147	–	in |= (data[i++]      );
148	–
149	–	in_wire |= (data[i++] << 24);
150	–	in_wire |= (data[i++] << 16);
151	–	in_wire |= (data[i++] <<  8);
152	–	in_wire |= (data[i++]      );
153	–
154	–	out |= (data[i++] << 24);
155	–	out |= (data[i++] << 16);
156	–	out |= (data[i++] <<  8);
157	–	out |= (data[i++]      );
158	–
159	–	out_wire |= (data[i++] << 24);
160	–	out_wire |= (data[i++] << 16);
161	–	out_wire |= (data[i++] <<  8);
162	–	out_wire |= (data[i++]      );
163	–
164	–	/* This macro adds b to a if a plus b is not an overflow, and sets the
165	–	* value of a to b if it is.
166	–	* Add and Set if No Overflow.
167	–	*/
168	–	#define ASNO(a, b) a = (a + b >= a ? a + b : b)
169	–
170	–	ASNO(zipstats.in, in);
171	–	ASNO(zipstats.out, out);
172	–	ASNO(zipstats.in_wire, in_wire);
173	–	ASNO(zipstats.out_wire, out_wire);
174	–
175	–	if (zipstats.in > 0)
176	–	zipstats.in_ratio = (((double)(zipstats.in - zipstats.in_wire) /
177	–	(double)zipstats.in) * 100.00);
178	–	else
179	–	zipstats.in_ratio = 0;
180	–
181	–	if (zipstats.out > 0)
182	–	zipstats.out_ratio = (((double)(zipstats.out - zipstats.out_wire) /
183	–	(double)zipstats.out) * 100.00);
184	–	else
185	–	zipstats.out_ratio = 0;
186	–
187	–	memcpy(&server_p->localClient->zipstats, &zipstats, sizeof(struct ZipStats));
188	–	}
189	–
190	–	void
191	–	collect_zipstats(void *unused)
192	–	{
193	–	dlink_node *ptr = NULL;
194	–
195	–	DLINK_FOREACH(ptr, serv_list.head)
196	–	{
197	–	struct Client *target_p = ptr->data;
198	–
199	–	if (IsCapable(target_p, CAP_ZIP))
200	–	{
201	–	/* only bother if we haven't already got something queued... */
202	–	if (!target_p->localClient->slinkq)
203	–	{
204	–	target_p->localClient->slinkq     = MyMalloc(1); /* sigh.. */
205	–	target_p->localClient->slinkq[0]  = SLINKCMD_ZIPSTATS;
206	–	target_p->localClient->slinkq_ofs = 0;
207	–	target_p->localClient->slinkq_len = 1;
208	–	send_queued_slink_write(target_p);
209	–	}
210	–	}
211	–	}
212	–	}
213	–
214	–	#ifdef HAVE_LIBCRYPTO
215	–	struct EncCapability *
216	–	check_cipher(struct Client *client_p, struct AccessItem *aconf)
217	–	{
218	–	struct EncCapability *epref = NULL;
219	–
220	–	/* Use connect{} specific info if available */
221	–	if (aconf->cipher_preference)
222	–	epref = aconf->cipher_preference;
223	–	else if (ConfigFileEntry.default_cipher_preference)
224	–	epref = ConfigFileEntry.default_cipher_preference;
225	–
226	–	/*
227	–	* If the server supports the capability in hand, return the matching
228	–	* conf struct.  Otherwise, return NULL (an error).
229	–	*/
230	–	if (epref && IsCapableEnc(client_p, epref->cap))
231	–	return epref;
232	–
233	–	return NULL;
234	–	}
235	–	#endif /* HAVE_LIBCRYPTO */
236	–
68		/*
69		* write_links_file
70		*
#	Line 243 | Line 74 | check_cipher(struct Client *client_p, st
74		*                but in no particular order.
75		*/
76		void
77	<	write_links_file(void* notused)
77	>	write_links_file(void *notused)
78		{
79	<	MessageFileLine *next_mptr = 0;
80	<	MessageFileLine *mptr = 0;
81	<	MessageFileLine *currentMessageLine = 0;
251	<	MessageFileLine *newMessageLine = 0;
252	<	MessageFile *MessageFileptr;
253	<	const char *p;
254	<	FBFILE *file;
255	<	char buff[512];
256	<	dlink_node *ptr;
257	<
258	<	MessageFileptr = &ConfigFileEntry.linksfile;
79	>	FILE *file = NULL;
80	>	dlink_node *ptr = NULL, *ptr_next = NULL;
81	>	char buff[IRCD_BUFSIZE] = "";
82
83	<	if ((file = fbopen(MessageFileptr->fileName, "w")) == NULL)
83	>	if ((file = fopen(LIPATH, "w")) == NULL)
84		return;
85
86	<	for (mptr = MessageFileptr->contentsOfFile; mptr; mptr = next_mptr)
86	>	DLINK_FOREACH_SAFE(ptr, ptr_next, flatten_links.head)
87		{
88	<	next_mptr = mptr->next;
89	<	MyFree(mptr);
88	>	dlinkDelete(ptr, &flatten_links);
89	>	MyFree(ptr->data);
90	>	free_dlink_node(ptr);
91		}
92
269	–	MessageFileptr->contentsOfFile = NULL;
270	–	currentMessageLine             = NULL;
271	–
93		DLINK_FOREACH(ptr, global_serv_list.head)
94		{
95	<	size_t nbytes = 0;
275	<	struct Client *target_p = ptr->data;
95	>	const struct Client *target_p = ptr->data;
96
97	<	/* skip ourselves, we send ourselves in /links */
98	<	if (IsMe(target_p))
97	>	/*
98	>	* Skip hidden servers, aswell as ourselves, since we already send
99	>	* ourselves in /links
100	>	*/
101	>	if (IsHidden(target_p) || IsMe(target_p))
102		continue;
103
104	<	/* skip hidden servers */
282	<	if (IsHidden(target_p) && !ConfigServerHide.disable_hidden)
104	>	if (HasFlag(target_p, FLAGS_SERVICE) && ConfigServerHide.hide_services)
105		continue;
106
107	<	if (target_p->info[0])
108	<	p = target_p->info;
287	<	else
288	<	p = "(Unknown Location)";
289	<
290	<	newMessageLine = MyMalloc(sizeof(MessageFileLine));
291	<
292	<	/* Attempt to format the file in such a way it follows the usual links output
107	>	/*
108	>	* Attempt to format the file in such a way it follows the usual links output
109		* ie  "servername uplink :hops info"
110		* Mostly for aesthetic reasons - makes it look pretty in mIRC ;)
111		* - madmax
112		*/
113	+	snprintf(buff, sizeof(buff), "%s %s :1 %s",   target_p->name,
114	+	me.name, target_p->info);
115	+	dlinkAddTail(xstrdup(buff), make_dlink_node(), &flatten_links);
116	+	snprintf(buff, sizeof(buff), "%s %s :1 %s\n", target_p->name,
117	+	me.name, target_p->info);
118
119	<	/*
120	<	* For now, check this ircsprintf wont overflow - it shouldnt on a
300	<	* default config but it is configurable..
301	<	* This should be changed to an snprintf at some point, but I'm wanting to
302	<	* know if this is a cause of a bug - cryogen
303	<	*/
304	<	assert(strlen(target_p->name) + strlen(me.name) + 6 + strlen(p) <=
305	<	MESSAGELINELEN);
306	<	ircsprintf(newMessageLine->line, "%s %s :1 %s",
307	<	target_p->name, me.name, p);
308	<	newMessageLine->next = NULL;
119	>	fputs(buff, file);
120	>	}
121
122	<	if (MessageFileptr->contentsOfFile)
123	<	{
124	<	if (currentMessageLine)
125	<	currentMessageLine->next = newMessageLine;
126	<	currentMessageLine = newMessageLine;
127	<	}
128	<	else
129	<	{
130	<	MessageFileptr->contentsOfFile = newMessageLine;
131	<	currentMessageLine = newMessageLine;
132	<	}
122	>	fclose(file);
123	>	}
124	>
125	>	void
126	>	read_links_file(void)
127	>	{
128	>	FILE *file = NULL;
129	>	char *p = NULL;
130	>	char buff[IRCD_BUFSIZE] = "";
131	>
132	>	if ((file = fopen(LIPATH, "r")) == NULL)
133	>	return;
134
135	<	nbytes = ircsprintf(buff, "%s %s :1 %s\n", target_p->name, me.name, p);
136	<	fbputs(buff, file, nbytes);
135	>	while (fgets(buff, sizeof(buff), file))
136	>	{
137	>	if ((p = strchr(buff, '\n')))
138	>	*p = '\0';
139	>
140	>	dlinkAddTail(xstrdup(buff), make_dlink_node(), &flatten_links);
141		}
142
143	<	fbclose(file);
143	>	fclose(file);
144		}
145
146		/* hunt_server()
#	Line 346 | Line 163 | write_links_file(void* notused)
163		*      returns: (see #defines)
164		*/
165		int
166	<	hunt_server(struct Client *client_p, struct Client *source_p, const char *command,
167	<	int server, int parc, char *parv[])
166	>	hunt_server(struct Client *source_p, const char *command,
167	>	const int server, const int parc, char *parv[])
168		{
169		struct Client *target_p = NULL;
170		struct Client *target_tmp = NULL;
171		dlink_node *ptr;
172		int wilds;
173
174	<	/* Assume it's me, if no server
175	<	*/
176	<	if (parc <= server || EmptyString(parv[server]) ||
177	<	match(me.name, parv[server]) ||
178	<	match(parv[server], me.name) ||
179	<	!strcmp(parv[server], me.id))
363	<	return(HUNTED_ISME);
174	>	/* Assume it's me, if no server */
175	>	if (parc <= server || EmptyString(parv[server]))
176	>	return HUNTED_ISME;
177	>
178	>	if (!strcmp(parv[server], me.id) || !match(parv[server], me.name))
179	>	return HUNTED_ISME;
180
181		/* These are to pickup matches that would cause the following
182		* message to go in the wrong direction while doing quick fast
#	Line 369 | Line 185 | hunt_server(struct Client *client_p, str
185		if (MyClient(source_p))
186		target_p = hash_find_client(parv[server]);
187		else
188	<	target_p = find_person(client_p, parv[server]);
188	>	target_p = find_person(source_p, parv[server]);
189
190		if (target_p)
191		if (target_p->from == source_p->from && !MyConnect(target_p))
#	Line 379 | Line 195 | hunt_server(struct Client *client_p, str
195		if (target_p->from == source_p->from && !MyConnect(target_p))
196		target_p = NULL;
197
198	<	collapse(parv[server]);
383	<	wilds = (strchr(parv[server], '?') || strchr(parv[server], '*'));
198	>	wilds = has_wildcards(parv[server]);
199
200		/* Again, if there are no wild cards involved in the server
201		* name, use the hash lookup
#	Line 391 | Line 206 | hunt_server(struct Client *client_p, str
206		{
207		if (!(target_p = hash_find_server(parv[server])))
208		{
209	<	sendto_one(source_p, form_str(ERR_NOSUCHSERVER),
210	<	me.name, source_p->name, parv[server]);
396	<	return(HUNTED_NOSUCH);
209	>	sendto_one_numeric(source_p, &me, ERR_NOSUCHSERVER, parv[server]);
210	>	return HUNTED_NOSUCH;
211		}
212		}
213		else
#	Line 402 | Line 216 | hunt_server(struct Client *client_p, str
216		{
217		target_tmp = ptr->data;
218
219	<	if (match(parv[server], target_tmp->name))
219	>	if (!match(parv[server], target_tmp->name))
220		{
221		if (target_tmp->from == source_p->from && !MyConnect(target_tmp))
222		continue;
223		target_p = ptr->data;
224
225	<	if (IsRegistered(target_p) && (target_p != client_p))
225	>	if (IsRegistered(target_p) && (target_p != source_p->from))
226		break;
227		}
228		}
229		}
230		}
231
232	<	if (target_p != NULL)
232	>	if (target_p)
233		{
234	<	if(!IsRegistered(target_p))
234	>	if (!IsRegistered(target_p))
235		{
236	<	sendto_one(source_p, form_str(ERR_NOSUCHSERVER),
423	<	me.name, source_p->name, parv[server]);
236	>	sendto_one_numeric(source_p, &me, ERR_NOSUCHSERVER, parv[server]);
237		return HUNTED_NOSUCH;
238		}
239
240		if (IsMe(target_p) || MyClient(target_p))
241		return HUNTED_ISME;
242
243	<	if (!match(target_p->name, parv[server]))
243	>	if (match(target_p->name, parv[server]))
244		parv[server] = target_p->name;
245
246		/* This is a little kludgy but should work... */
247	<	if (IsClient(source_p) &&
435	<	((MyConnect(target_p) && IsCapable(target_p, CAP_TS6)) ||
436	<	(!MyConnect(target_p) && IsCapable(target_p->from, CAP_TS6))))
437	<	parv[0] = ID(source_p);
438	<
439	<	sendto_one(target_p, command, parv[0],
247	>	sendto_one(target_p, command, ID_or_name(source_p, target_p),
248		parv[1], parv[2], parv[3], parv[4],
249		parv[5], parv[6], parv[7], parv[8]);
250	<	return(HUNTED_PASS);
251	<	}
250	>	return HUNTED_PASS;
251	>	}
252
253	<	sendto_one(source_p, form_str(ERR_NOSUCHSERVER),
254	<	me.name, source_p->name, parv[server]);
447	<	return(HUNTED_NOSUCH);
253	>	sendto_one_numeric(source_p, &me, ERR_NOSUCHSERVER, parv[server]);
254	>	return HUNTED_NOSUCH;
255		}
256
257		/* try_connections()
#	Line 460 | Line 267 | hunt_server(struct Client *client_p, str
267		void
268		try_connections(void *unused)
269		{
270	<	dlink_node *ptr;
271	<	struct ConfItem *conf;
465	<	struct AccessItem *aconf;
466	<	struct ClassItem *cltmp;
270	>	dlink_node *ptr = NULL;
271	>	struct MaskItem *conf;
272		int confrq;
273
274		/* TODO: change this to set active flag to 0 when added to event! --Habeeb */
#	Line 473 | Line 278 | try_connections(void *unused)
278		DLINK_FOREACH(ptr, server_items.head)
279		{
280		conf = ptr->data;
476	–	aconf = map_to_conf(conf);
281
282	<	/* Also when already connecting! (update holdtimes) --SRB
282	>	assert(conf->type == CONF_SERVER);
283	>
284	>	/* Also when already connecting! (update holdtimes) --SRB
285		*/
286	<	if (!(aconf->status & CONF_SERVER) || !aconf->port ||
481	<	!(IsConfAllowAutoConn(aconf)))
286	>	if (!conf->port ||!IsConfAllowAutoConn(conf))
287		continue;
288
484	–	cltmp = map_to_conf(aconf->class_ptr);
289
290		/* Skip this entry if the use of it is still on hold until
291		* future. Otherwise handle this entry (and set it on hold
#	Line 489 | Line 293 | try_connections(void *unused)
293		* made one successfull connection... [this algorithm is
294		* a bit fuzzy... -- msa >;) ]
295		*/
296	<	if (aconf->hold > CurrentTime)
296	>	if (conf->until > CurrentTime)
297		continue;
298
299	<	if (cltmp == NULL)
299	>	if (conf->class == NULL)
300		confrq = DEFAULT_CONNECTFREQUENCY;
301		else
302		{
303	<	confrq = ConFreq(cltmp);
304	<	if (confrq < MIN_CONN_FREQ )
305	<	confrq = MIN_CONN_FREQ;
303	>	confrq = conf->class->con_freq;
304	>	if (confrq < MIN_CONN_FREQ)
305	>	confrq = MIN_CONN_FREQ;
306		}
307
308	<	aconf->hold = CurrentTime + confrq;
308	>	conf->until = CurrentTime + confrq;
309
310	<	/* Found a CONNECT config with port specified, scan clients
310	>	/*
311	>	* Found a CONNECT config with port specified, scan clients
312		* and see if this server is already connected?
313		*/
314	<	if (hash_find_server(conf->name) != NULL)
314	>	if (hash_find_server(conf->name))
315		continue;
316
317	<	if (CurrUserCount(cltmp) < MaxTotal(cltmp))
317	>	if (conf->class->ref_count < conf->class->max_total)
318		{
319		/* Go to the end of the list, if not already last */
320	<	if (ptr->next != NULL)
320	>	if (ptr->next)
321		{
322		dlinkDelete(ptr, &server_items);
323		dlinkAddTail(conf, &conf->node, &server_items);
#	Line 521 | Line 326 | try_connections(void *unused)
326		if (find_servconn_in_progress(conf->name))
327		return;
328
329	<	/* We used to only print this if serv_connect() actually
329	>	/*
330	>	* We used to only print this if serv_connect() actually
331		* succeeded, but since comm_tcp_connect() can call the callback
332		* immediately if there is an error, we were getting error messages
333		* in the wrong order. SO, we just print out the activated line,
#	Line 530 | Line 336 | try_connections(void *unused)
336		*   -- adrian
337		*/
338		if (ConfigServerHide.hide_server_ips)
339	<	sendto_realops_flags(UMODE_ALL, L_ALL, "Connection to %s activated.",
339	>	sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
340	>	"Connection to %s activated.",
341		conf->name);
342		else
343	<	sendto_realops_flags(UMODE_ALL, L_ALL, "Connection to %s[%s] activated.",
344	<	conf->name, aconf->host);
343	>	sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
344	>	"Connection to %s[%s] activated.",
345	>	conf->name, conf->host);
346
347	<	serv_connect(aconf, NULL);
347	>	serv_connect(conf, NULL);
348		/* We connect only one at time... */
349		return;
350		}
#	Line 561 | Line 369 | valid_servname(const char *name)
369		++dots;
370		}
371
372	<	return dots != 0 && length <= HOSTLEN;
372	>	return dots && length <= HOSTLEN;
373		}
374
375		int
376	<	check_server(const char *name, struct Client *client_p, int cryptlink)
376	>	check_server(const char *name, struct Client *client_p)
377		{
378		dlink_node *ptr;
379	<	struct ConfItem *conf           = NULL;
380	<	struct ConfItem *server_conf    = NULL;
573	<	struct AccessItem *server_aconf = NULL;
574	<	struct AccessItem *aconf        = NULL;
379	>	struct MaskItem *conf        = NULL;
380	>	struct MaskItem *server_conf = NULL;
381		int error = -1;
382
383	<	assert(client_p != NULL);
578	<
579	<	if (client_p == NULL)
580	<	return(error);
581	<
582	<	if (strlen(name) > HOSTLEN)
583	<	return(-4);
383	>	assert(client_p);
384
385		/* loop through looking for all possible connect items that might work */
386		DLINK_FOREACH(ptr, server_items.head)
387		{
388		conf = ptr->data;
589	–	aconf = map_to_conf(conf);
389
390	<	if (!match(name, conf->name))
390	>	if (match(name, conf->name))
391		continue;
392
393		error = -3;
394
395		/* XXX: Fix me for IPv6                    */
396		/* XXX sockhost is the IPv4 ip as a string */
397	<	if (match(aconf->host, client_p->host) ||
398	<	match(aconf->host, client_p->sockhost))
397	>	if (!match(conf->host, client_p->host) ||
398	>	!match(conf->host, client_p->sockhost))
399		{
400		error = -2;
602	–	#ifdef HAVE_LIBCRYPTO
603	–	if (cryptlink && IsConfCryptLink(aconf))
604	–	{
605	–	if (aconf->rsa_public_key)
606	–	server_conf = conf;
607	–	}
608	–	else if (!(cryptlink || IsConfCryptLink(aconf)))
609	–	#endif /* HAVE_LIBCRYPTO */
610	–	{
611	–	/* A NULL password is as good as a bad one */
612	–	if (EmptyString(client_p->localClient->passwd))
613	–	return(-2);
614	–
615	–	/* code in s_conf.c should not have allowed this to be NULL */
616	–	if (aconf->passwd == NULL)
617	–	return(-2);
401
402	<	if (IsConfEncrypted(aconf))
403	<	{
404	<	if (strcmp(aconf->passwd,
405	<	(const char *)crypt(client_p->localClient->passwd,
406	<	aconf->passwd)) == 0)
407	<	server_conf = conf;
408	<	}
409	<	else
627	<	{
628	<	if (strcmp(aconf->passwd, client_p->localClient->passwd) == 0)
629	<	server_conf = conf;
630	<	}
631	<	}
402	>	if (!match_conf_password(client_p->localClient->passwd, conf))
403	>	return -2;
404	>
405	>	if (!EmptyString(conf->certfp))
406	>	if (EmptyString(client_p->certfp) || strcasecmp(client_p->certfp, conf->certfp))
407	>	return -4;
408	>
409	>	server_conf = conf;
410		}
411		}
412
413		if (server_conf == NULL)
414	<	return(error);
414	>	return error;
415
416		attach_conf(client_p, server_conf);
417
640	–	/* Now find all leaf or hub config items for this server */
641	–	DLINK_FOREACH(ptr, hub_items.head)
642	–	{
643	–	conf = ptr->data;
644	–
645	–	if (!match(name, conf->name))
646	–	continue;
647	–	attach_conf(client_p, conf);
648	–	}
649	–
650	–	DLINK_FOREACH(ptr, leaf_items.head)
651	–	{
652	–	conf = ptr->data;
653	–
654	–	if (!match(name, conf->name))
655	–	continue;
656	–	attach_conf(client_p, conf);
657	–	}
658	–
659	–	server_aconf = map_to_conf(server_conf);
418
419	<	#ifdef HAVE_LIBZ /* otherwise, clear it unconditionally */
662	<	if (!IsConfCompressed(server_aconf))
663	<	#endif
664	<	ClearCap(client_p, CAP_ZIP);
665	<	if (!IsConfCryptLink(server_aconf))
666	<	ClearCap(client_p, CAP_ENC);
667	<	if (!IsConfTopicBurst(server_aconf))
668	<	{
669	<	ClearCap(client_p, CAP_TB);
670	<	ClearCap(client_p, CAP_TBURST);
671	<	}
672	<
673	<	if (aconf != NULL)
419	>	if (server_conf)
420		{
421		struct sockaddr_in *v4;
422		#ifdef IPV6
423		struct sockaddr_in6 *v6;
424		#endif
425	<	switch (aconf->aftype)
425	>	switch (server_conf->aftype)
426		{
427		#ifdef IPV6
428	<	case AF_INET6:
429	<	v6 = (struct sockaddr_in6 *)&aconf->ipnum;
428	>	case AF_INET6:
429	>	v6 = (struct sockaddr_in6 *)&server_conf->addr;
430
431		if (IN6_IS_ADDR_UNSPECIFIED(&v6->sin6_addr))
432	<	memcpy(&aconf->ipnum, &client_p->localClient->ip, sizeof(struct irc_ssaddr));
432	>	memcpy(&server_conf->addr, &client_p->localClient->ip, sizeof(struct irc_ssaddr));
433		break;
434		#endif
435		case AF_INET:
436	<	v4 = (struct sockaddr_in *)&aconf->ipnum;
436	>	v4 = (struct sockaddr_in *)&server_conf->addr;
437
438		if (v4->sin_addr.s_addr == INADDR_NONE)
439	<	memcpy(&aconf->ipnum, &client_p->localClient->ip, sizeof(struct irc_ssaddr));
439	>	memcpy(&server_conf->addr, &client_p->localClient->ip, sizeof(struct irc_ssaddr));
440		break;
441		}
442		}
443
444	<	return(0);
444	>	return 0;
445		}
446
447		/* add_capability()
#	Line 712 | Line 458 | add_capability(const char *capab_name, i
458		{
459		struct Capability *cap = MyMalloc(sizeof(*cap));
460
461	<	DupString(cap->name, capab_name);
461	>	cap->name = xstrdup(capab_name);
462		cap->cap = cap_flag;
463		dlinkAdd(cap, &cap->node, &cap_list);
464
#	Line 741 | Line 487 | delete_capability(const char *capab_name
487		{
488		if (irccmp(cap->name, capab_name) == 0)
489		{
490	<	default_server_capabs &= ~(cap->cap);
491	<	dlinkDelete(ptr, &cap_list);
492	<	MyFree(cap->name);
493	<	cap->name = NULL;
748	<	MyFree(cap);
490	>	default_server_capabs &= ~(cap->cap);
491	>	dlinkDelete(ptr, &cap_list);
492	>	MyFree(cap->name);
493	>	MyFree(cap);
494		}
495		}
496		}
#	Line 760 | Line 505 | delete_capability(const char *capab_name
505		* output       - 0 if not found CAPAB otherwise
506		* side effects - none
507		*/
508	<	int
508	>	unsigned int
509		find_capability(const char *capab)
510		{
511		const dlink_node *ptr = NULL;
#	Line 779 | Line 524 | find_capability(const char *capab)
524		/* send_capabilities()
525		*
526		* inputs       - Client pointer to send to
782	–	*              - Pointer to AccessItem (for crypt)
527		*              - int flag of capabilities that this server can send
784	–	*              - int flag of encryption capabilities
528		* output       - NONE
529		* side effects - send the CAPAB line to a server  -orabidoo
530		*
531		*/
532		void
533	<	send_capabilities(struct Client *client_p, struct AccessItem *aconf,
791	<	int cap_can_send, int enc_can_send)
533	>	send_capabilities(struct Client *client_p, int cap_can_send)
534		{
535	<	struct Capability *cap=NULL;
536	<	char msgbuf[IRCD_BUFSIZE];
795	<	char *t;
535	>	char msgbuf[IRCD_BUFSIZE] = "";
536	>	char *t = msgbuf;
537		int tl;
538	<	dlink_node *ptr;
798	<	#ifdef HAVE_LIBCRYPTO
799	<	const struct EncCapability *epref = NULL;
800	<	char *capend;
801	<	int sent_cipher = 0;
802	<	#endif
803	<
804	<	t = msgbuf;
538	>	dlink_node *ptr = NULL;
539
540		DLINK_FOREACH(ptr, cap_list.head)
541		{
542	<	cap = ptr->data;
542	>	struct Capability *cap = ptr->data;
543
544		if (cap->cap & (cap_can_send|default_server_capabs))
545		{
546	<	tl = ircsprintf(t, "%s ", cap->name);
546	>	tl = sprintf(t, "%s ", cap->name);
547		t += tl;
548		}
549		}
816	–	#ifdef HAVE_LIBCRYPTO
817	–	if (enc_can_send)
818	–	{
819	–	capend = t;
820	–	strcpy(t, "ENC:");
821	–	t += 4;
822	–
823	–	/* use connect{} specific info if available */
824	–	if (aconf->cipher_preference)
825	–	epref = aconf->cipher_preference;
826	–	else if (ConfigFileEntry.default_cipher_preference)
827	–	epref = ConfigFileEntry.default_cipher_preference;
550
829	–	if (epref && (epref->cap & enc_can_send))
830	–	{
831	–	/* Leave the space -- it is removed later. */
832	–	tl = ircsprintf(t, "%s ", epref->name);
833	–	t += tl;
834	–	sent_cipher = 1;
835	–	}
836	–
837	–	if (!sent_cipher)
838	–	t = capend; /* truncate string before ENC:, below */
839	–	}
840	–	#endif
551		*(t - 1) = '\0';
552		sendto_one(client_p, "CAPAB :%s", msgbuf);
553		}
554
555		/* sendnick_TS()
556	<	*
556	>	*
557		* inputs       - client (server) to send nick towards
558		*          - client to send nick for
559		* output       - NONE
#	Line 852 | Line 562 | send_capabilities(struct Client *client_
562		void
563		sendnick_TS(struct Client *client_p, struct Client *target_p)
564		{
565	<	static char ubuf[12];
565	>	char ubuf[IRCD_BUFSIZE] = "";
566
567		if (!IsClient(target_p))
568		return;
569
570	<	send_umode(NULL, target_p, 0, HasOFlag(target_p, OPER_FLAG_HIDDEN_ADMIN) ?
861	<	SEND_UMODES & ~UMODE_ADMIN : SEND_UMODES, ubuf);
570	>	send_umode(NULL, target_p, 0, SEND_UMODES, ubuf);
571
572		if (ubuf[0] == '\0')
573		{
#	Line 866 | Line 575 | sendnick_TS(struct Client *client_p, str
575		ubuf[1] = '\0';
576		}
577
869	–	/* XXX Both of these need to have a :me.name or :mySID!?!?! */
578		if (IsCapable(client_p, CAP_SVS))
579	<	{
580	<	if (HasID(target_p) && IsCapable(client_p, CAP_TS6))
581	<	sendto_one(client_p, ":%s UID %s %d %lu %s %s %s %s %s %lu :%s",
582	<	target_p->servptr->id,
583	<	target_p->name, target_p->hopcount + 1,
584	<	(unsigned long) target_p->tsinfo,
585	<	ubuf, target_p->username, target_p->host,
586	<	(MyClient(target_p) && IsIPSpoof(target_p)) ?
879	<	"0" : target_p->sockhost, target_p->id,
880	<	(unsigned long)target_p->servicestamp, target_p->info);
881	<	else
882	<	sendto_one(client_p, "NICK %s %d %lu %s %s %s %s %lu :%s",
883	<	target_p->name, target_p->hopcount + 1,
884	<	(unsigned long) target_p->tsinfo,
885	<	ubuf, target_p->username, target_p->host,
886	<	target_p->servptr->name, (unsigned long)target_p->servicestamp,
887	<	target_p->info);
888	<	}
579	>	sendto_one(client_p, ":%s UID %s %d %lu %s %s %s %s %s %s :%s",
580	>	target_p->servptr->id,
581	>	target_p->name, target_p->hopcount + 1,
582	>	(unsigned long) target_p->tsinfo,
583	>	ubuf, target_p->username, target_p->host,
584	>	(MyClient(target_p) && IsIPSpoof(target_p)) ?
585	>	"0" : target_p->sockhost, target_p->id,
586	>	target_p->svid, target_p->info);
587		else
588	<	{
589	<	if (HasID(target_p) && IsCapable(client_p, CAP_TS6))
590	<	sendto_one(client_p, ":%s UID %s %d %lu %s %s %s %s %s :%s",
591	<	target_p->servptr->id,
592	<	target_p->name, target_p->hopcount + 1,
593	<	(unsigned long) target_p->tsinfo,
594	<	ubuf, target_p->username, target_p->host,
897	<	(MyClient(target_p) && IsIPSpoof(target_p)) ?
898	<	"0" : target_p->sockhost, target_p->id, target_p->info);
899	<	else
900	<	sendto_one(client_p, "NICK %s %d %lu %s %s %s %s :%s",
901	<	target_p->name, target_p->hopcount + 1,
902	<	(unsigned long) target_p->tsinfo,
903	<	ubuf, target_p->username, target_p->host,
904	<	target_p->servptr->name, target_p->info);
905	<	}
588	>	sendto_one(client_p, ":%s UID %s %d %lu %s %s %s %s %s :%s",
589	>	target_p->servptr->id,
590	>	target_p->name, target_p->hopcount + 1,
591	>	(unsigned long) target_p->tsinfo,
592	>	ubuf, target_p->username, target_p->host,
593	>	(MyClient(target_p) && IsIPSpoof(target_p)) ?
594	>	"0" : target_p->sockhost, target_p->id, target_p->info);
595
596	<	if (IsConfAwayBurst((struct AccessItem *)map_to_conf(client_p->serv->sconf)))
597	<	if (!EmptyString(target_p->away))
598	<	sendto_one(client_p, ":%s AWAY :%s", target_p->name,
599	<	target_p->away);
596	>	if (!EmptyString(target_p->certfp))
597	>	sendto_one(client_p, ":%s CERTFP %s", target_p->id, target_p->certfp);
598	>
599	>	if (target_p->away[0])
600	>	sendto_one(client_p, ":%s AWAY :%s", target_p->id, target_p->away);
601
602		}
603
#	Line 919 | Line 609 | sendnick_TS(struct Client *client_p, str
609		* side effects - build up string representing capabilities of server listed
610		*/
611		const char *
612	<	show_capabilities(struct Client *target_p)
612	>	show_capabilities(const struct Client *target_p)
613		{
614	<	static char msgbuf[IRCD_BUFSIZE];
615	<	char *t = msgbuf;
926	<	dlink_node *ptr;
614	>	static char msgbuf[IRCD_BUFSIZE] = "";
615	>	const dlink_node *ptr = NULL;
616
617	<	t += ircsprintf(msgbuf, "TS ");
617	>	strlcpy(msgbuf, "TS", sizeof(msgbuf));
618
619		DLINK_FOREACH(ptr, cap_list.head)
620		{
621		const struct Capability *cap = ptr->data;
622
623	<	if (IsCapable(target_p, cap->cap))
624	<	t += ircsprintf(t, "%s ", cap->name);
623	>	if (!IsCapable(target_p, cap->cap))
624	>	continue;
625	>
626	>	strlcat(msgbuf,       " ", sizeof(msgbuf));
627	>	strlcat(msgbuf, cap->name, sizeof(msgbuf));
628		}
937	–	#ifdef HAVE_LIBCRYPTO
938	–	if (IsCapable(target_p, CAP_ENC) &&
939	–	target_p->localClient->in_cipher &&
940	–	target_p->localClient->out_cipher)
941	–	t += ircsprintf(t, "ENC:%s ",
942	–	target_p->localClient->in_cipher->name);
943	–	#endif
944	–	*(t - 1) = '\0';
629
630	<	return(msgbuf);
630	>	return msgbuf;
631		}
632
633		/* make_server()
#	Line 971 | Line 655 | make_server(struct Client *client_p)
655		void
656		server_estab(struct Client *client_p)
657		{
658	<	struct Client *target_p;
975	<	struct ConfItem *conf;
976	<	struct AccessItem *aconf=NULL;
658	>	struct MaskItem *conf = NULL;
659		char *host;
660		const char *inpath;
661		static char inpath_ip[HOSTLEN * 2 + USERLEN + 6];
662		dlink_node *ptr;
663	+	#ifdef HAVE_LIBCRYPTO
664	+	const COMP_METHOD *compression = NULL, *expansion = NULL;
665	+	#endif
666
667	<	assert(client_p != NULL);
667	>	assert(client_p);
668
669		strlcpy(inpath_ip, get_client_name(client_p, SHOW_IP), sizeof(inpath_ip));
670
671		inpath = get_client_name(client_p, MASK_IP); /* "refresh" inpath with host */
672		host   = client_p->name;
673
674	<	if ((conf = find_conf_name(&client_p->localClient->confs, host, SERVER_TYPE))
674	>	if ((conf = find_conf_name(&client_p->localClient->confs, host, CONF_SERVER))
675		== NULL)
676		{
677		/* This shouldn't happen, better tell the ops... -A1kmm */
678	<	sendto_realops_flags(UMODE_ALL, L_ALL, "Warning: Lost connect{} block "
678	>	sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
679	>	"Warning: Lost connect{} block "
680		"for server %s(this shouldn't happen)!", host);
681	<	exit_client(client_p, &me, "Lost connect{} block!");
681	>	exit_client(client_p, "Lost connect{} block!");
682		return;
683		}
684
#	Line 1005 | Line 691 | server_estab(struct Client *client_p)
691		/* If there is something in the serv_list, it might be this
692		* connecting server..
693		*/
694	<	if (!ServerInfo.hub && serv_list.head)
694	>	if (!ServerInfo.hub && serv_list.head)
695		{
696		if (client_p != serv_list.head->data || serv_list.head->next)
697		{
698		++ServerStats.is_ref;
699		sendto_one(client_p, "ERROR :I'm a leaf not a hub");
700	<	exit_client(client_p, &me, "I'm a leaf");
700	>	exit_client(client_p, "I'm a leaf");
701		return;
702		}
703		}
704
705	<	aconf = map_to_conf(conf);
1020	<
1021	<	if (IsUnknown(client_p) && !IsConfCryptLink(aconf))
705	>	if (IsUnknown(client_p))
706		{
707	<	/* jdc -- 1.  Use EmptyString(), not [0] index reference.
708	<	*        2.  Check aconf->spasswd, not aconf->passwd.
709	<	*/
1026	<	if (!EmptyString(aconf->spasswd))
1027	<	sendto_one(client_p, "PASS %s TS %d %s",
1028	<	aconf->spasswd, TS_CURRENT, me.id);
1029	<
1030	<	/* Pass my info to the new server
1031	<	*
1032	<	* Pass on ZIP if supported
1033	<	* Pass on TB if supported.
1034	<	* - Dianora
1035	<	*/
707	>	sendto_one(client_p, "PASS %s TS %d %s", conf->spasswd, TS_CURRENT, me.id);
708	>
709	>	send_capabilities(client_p, 0);
710
1037	–	send_capabilities(client_p, aconf,
1038	–	(IsConfCompressed(aconf) ? CAP_ZIP : 0)
1039	–	| (IsConfTopicBurst(aconf) ? CAP_TBURST|CAP_TB : 0), 0);
1040	–
1041	–	/* SERVER is the last command sent before switching to ziplinks.
1042	–	* We set TCPNODELAY on the socket to make sure it gets sent out
1043	–	* on the wire immediately.  Otherwise, it could be sitting in
1044	–	* a kernel buffer when we start sending zipped data, and the
1045	–	* parser on the receiving side can't hand both unzipped and zipped
1046	–	* data in one packet. --Rodder
1047	–	*
1048	–	* currently we only need to call send_queued_write,
1049	–	* Nagle is already disabled at this point --adx
1050	–	*/
711		sendto_one(client_p, "SERVER %s 1 :%s%s",
712		me.name, ConfigServerHide.hidden ? "(H) " : "", me.info);
1053	–	send_queued_write(client_p);
1054	–	}
1055	–
1056	–	/* Hand the server off to servlink now */
1057	–	if (IsCapable(client_p, CAP_ENC) || IsCapable(client_p, CAP_ZIP))
1058	–	{
1059	–	if (fork_server(client_p) < 0)
1060	–	{
1061	–	sendto_realops_flags(UMODE_ALL, L_ADMIN,
1062	–	"Warning: fork failed for server %s -- check servlink_path (%s)",
1063	–	get_client_name(client_p, HIDE_IP), ConfigFileEntry.servlink_path);
1064	–	sendto_realops_flags(UMODE_ALL, L_OPER, "Warning: fork failed for server "
1065	–	"%s -- check servlink_path (%s)",
1066	–	get_client_name(client_p, MASK_IP),
1067	–	ConfigFileEntry.servlink_path);
1068	–	exit_client(client_p, &me, "fork failed");
1069	–	return;
1070	–	}
1071	–
1072	–	start_io(client_p);
1073	–	SetServlink(client_p);
713		}
714
715		sendto_one(client_p, "SVINFO %d %d 0 :%lu", TS_CURRENT, TS_MIN,
716		(unsigned long)CurrentTime);
717
1079	–	/* assumption here is if they passed the correct TS version, they also passed an SID */
1080	–	if (IsCapable(client_p, CAP_TS6))
1081	–	hash_add_id(client_p);
1082	–
718		/* XXX Does this ever happen? I don't think so -db */
719	<	detach_conf(client_p, OPER_TYPE);
719	>	detach_conf(client_p, CONF_OPER);
720
721		/* *WARNING*
722		**    In the following code in place of plain server's
#	Line 1101 | Line 736 | server_estab(struct Client *client_p)
736
737		SetServer(client_p);
738
1104	–	/* Update the capability combination usage counts. -A1kmm */
1105	–	set_chcap_usage_counts(client_p);
1106	–
739		/* Some day, all these lists will be consolidated *sigh* */
740		dlinkAdd(client_p, &client_p->lnode, &me.serv->server_list);
741
#	Line 1116 | Line 748 | server_estab(struct Client *client_p)
748
749		dlinkAdd(client_p, make_dlink_node(), &global_serv_list);
750		hash_add_client(client_p);
751	+	hash_add_id(client_p);
752
753		/* doesnt duplicate client_p->serv if allocated this struct already */
754		make_server(client_p);
#	Line 1123 | Line 756 | server_estab(struct Client *client_p)
756		/* fixing eob timings.. -gnp */
757		client_p->localClient->firsttime = CurrentTime;
758
759	<
1127	<	if (find_matching_name_conf(SERVICE_TYPE, client_p->name, NULL, NULL, 0))
759	>	if (find_matching_name_conf(CONF_SERVICE, client_p->name, NULL, NULL, 0))
760		AddFlag(client_p, FLAGS_SERVICE);
761
762		/* Show the real host/IP to admins */
763	<	sendto_realops_flags(UMODE_ALL, L_ADMIN,
764	<	"Link with %s established: (%s) link",
1133	<	inpath_ip,show_capabilities(client_p));
1134	<	/* Now show the masked hostname/IP to opers */
1135	<	sendto_realops_flags(UMODE_ALL, L_OPER,
1136	<	"Link with %s established: (%s) link",
1137	<	inpath,show_capabilities(client_p));
1138	<	ilog(L_NOTICE, "Link with %s established: (%s) link",
1139	<	inpath_ip, show_capabilities(client_p));
1140	<
1141	<	client_p->serv->sconf = conf;
1142	<
1143	<	if (HasServlink(client_p))
763	>	#ifdef HAVE_LIBCRYPTO
764	>	if (client_p->localClient->fd.ssl)
765		{
766	<	/* we won't overflow FD_DESC_SZ here, as it can hold
767	<	* client_p->name + 64
768	<	*/
769	<	fd_note(&client_p->localClient->fd, "slink data: %s", client_p->name);
770	<	fd_note(&client_p->localClient->ctrlfd, "slink ctrl: %s", client_p->name);
766	>	compression = SSL_get_current_compression(client_p->localClient->fd.ssl);
767	>	expansion   = SSL_get_current_expansion(client_p->localClient->fd.ssl);
768	>
769	>	sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE,
770	>	"Link with %s established: [SSL: %s, Compression/Expansion method: %s/%s] (Capabilities: %s)",
771	>	inpath_ip, ssl_get_cipher(client_p->localClient->fd.ssl),
772	>	compression ? SSL_COMP_get_name(compression) : "NONE",
773	>	expansion ? SSL_COMP_get_name(expansion) : "NONE",
774	>	show_capabilities(client_p));
775	>	/* Now show the masked hostname/IP to opers */
776	>	sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE,
777	>	"Link with %s established: [SSL: %s, Compression/Expansion method: %s/%s] (Capabilities: %s)",
778	>	inpath, ssl_get_cipher(client_p->localClient->fd.ssl),
779	>	compression ? SSL_COMP_get_name(compression) : "NONE",
780	>	expansion ? SSL_COMP_get_name(expansion) : "NONE",
781	>	show_capabilities(client_p));
782	>	ilog(LOG_TYPE_IRCD, "Link with %s established: [SSL: %s, Compression/Expansion method: %s/%s] (Capabilities: %s)",
783	>	inpath_ip, ssl_get_cipher(client_p->localClient->fd.ssl),
784	>	compression ? SSL_COMP_get_name(compression) : "NONE",
785	>	expansion ? SSL_COMP_get_name(expansion) : "NONE",
786	>	show_capabilities(client_p));
787		}
788		else
789	<	fd_note(&client_p->localClient->fd, "Server: %s", client_p->name);
1153	<
1154	<	/* Old sendto_serv_but_one() call removed because we now
1155	<	** need to send different names to different servers
1156	<	** (domain name matching) Send new server to other servers.
1157	<	*/
1158	<	DLINK_FOREACH(ptr, serv_list.head)
789	>	#endif
790		{
791	<	target_p = ptr->data;
792	<
793	<	if (target_p == client_p)
794	<	continue;
791	>	sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE,
792	>	"Link with %s established: (Capabilities: %s)",
793	>	inpath_ip, show_capabilities(client_p));
794	>	/* Now show the masked hostname/IP to opers */
795	>	sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE,
796	>	"Link with %s established: (Capabilities: %s)",
797	>	inpath, show_capabilities(client_p));
798	>	ilog(LOG_TYPE_IRCD, "Link with %s established: (Capabilities: %s)",
799	>	inpath_ip, show_capabilities(client_p));
800	>	}
801	>
802	>	fd_note(&client_p->localClient->fd, "Server: %s", client_p->name);
803	>
804	>	sendto_server(client_p, NOCAPS, NOCAPS, ":%s SID %s 2 %s :%s%s",
805	>	me.id, client_p->name, client_p->id,
806	>	IsHidden(client_p) ? "(H) " : "", client_p->info);
807
808	<	if (IsCapable(target_p, CAP_TS6) && HasID(client_p))
809	<	sendto_one(target_p, ":%s SID %s 2 %s :%s%s",
810	<	me.id, client_p->name, client_p->id,
811	<	IsHidden(client_p) ? "(H) " : "",
812	<	client_p->info);
813	<	else
814	<	sendto_one(target_p,":%s SERVER %s 2 :%s%s",
815	<	me.name, client_p->name,
816	<	IsHidden(client_p) ? "(H) " : "",
817	<	client_p->info);
818	<	}
819	<
820	<	/* Pass on my client information to the new server
821	<	**
822	<	** First, pass only servers (idea is that if the link gets
823	<	** cancelled beacause the server was already there,
824	<	** there are no NICK's to be cancelled...). Of course,
825	<	** if cancellation occurs, all this info is sent anyway,
1183	<	** and I guess the link dies when a read is attempted...? --msa
1184	<	**
1185	<	** Note: Link cancellation to occur at this point means
1186	<	** that at least two servers from my fragment are building
1187	<	** up connection this other fragment at the same time, it's
1188	<	** a race condition, not the normal way of operation...
1189	<	**
1190	<	** ALSO NOTE: using the get_client_name for server names--
1191	<	**    see previous *WARNING*!!! (Also, original inpath
1192	<	**    is destroyed...)
1193	<	*/
808	>	/*
809	>	* Pass on my client information to the new server
810	>	*
811	>	* First, pass only servers (idea is that if the link gets
812	>	* cancelled beacause the server was already there,
813	>	* there are no NICK's to be cancelled...). Of course,
814	>	* if cancellation occurs, all this info is sent anyway,
815	>	* and I guess the link dies when a read is attempted...? --msa
816	>	*
817	>	* Note: Link cancellation to occur at this point means
818	>	* that at least two servers from my fragment are building
819	>	* up connection this other fragment at the same time, it's
820	>	* a race condition, not the normal way of operation...
821	>	*
822	>	* ALSO NOTE: using the get_client_name for server names--
823	>	*    see previous *WARNING*!!! (Also, original inpath
824	>	*    is destroyed...)
825	>	*/
826
827		DLINK_FOREACH_PREV(ptr, global_serv_list.tail)
828		{
829	<	target_p = ptr->data;
829	>	struct Client *target_p = ptr->data;
830
831		/* target_p->from == target_p for target_p == client_p */
832		if (IsMe(target_p) || target_p->from == client_p)
833		continue;
834
835	<	if (IsCapable(client_p, CAP_TS6))
836	<	{
837	<	if (HasID(target_p))
838	<	sendto_one(client_p, ":%s SID %s %d %s :%s%s",
1207	<	ID(target_p->servptr), target_p->name, target_p->hopcount+1,
1208	<	target_p->id, IsHidden(target_p) ? "(H) " : "",
1209	<	target_p->info);
1210	<	else  /* introducing non-ts6 server */
1211	<	sendto_one(client_p, ":%s SERVER %s %d :%s%s",
1212	<	ID(target_p->servptr), target_p->name, target_p->hopcount+1,
1213	<	IsHidden(target_p) ? "(H) " : "", target_p->info);
1214	<	}
1215	<	else
1216	<	sendto_one(client_p, ":%s SERVER %s %d :%s%s",
1217	<	target_p->servptr->name, target_p->name, target_p->hopcount+1,
1218	<	IsHidden(target_p) ? "(H) " : "", target_p->info);
1219	<	}
1220	<
1221	<	server_burst(client_p);
1222	<	}
835	>	sendto_one(client_p, ":%s SID %s %d %s :%s%s",
836	>	target_p->servptr->id, target_p->name, target_p->hopcount+1,
837	>	target_p->id, IsHidden(target_p) ? "(H) " : "",
838	>	target_p->info);
839
840	<	static void
841	<	start_io(struct Client *server)
1226	<	{
1227	<	struct LocalUser *lserver = server->localClient;
1228	<	int alloclen = 1;
1229	<	char *buf;
1230	<	dlink_node *ptr;
1231	<	struct dbuf_block *block;
1232	<
1233	<	/* calculate how many bytes to allocate */
1234	<	if (IsCapable(server, CAP_ZIP))
1235	<	alloclen += 6;
1236	<	#ifdef HAVE_LIBCRYPTO
1237	<	if (IsCapable(server, CAP_ENC))
1238	<	alloclen += 16 + lserver->in_cipher->keylen + lserver->out_cipher->keylen;
1239	<	#endif
1240	<	alloclen += dbuf_length(&lserver->buf_recvq);
1241	<	alloclen += dlink_list_length(&lserver->buf_recvq.blocks) * 3;
1242	<	alloclen += dbuf_length(&lserver->buf_sendq);
1243	<	alloclen += dlink_list_length(&lserver->buf_sendq.blocks) * 3;
1244	<
1245	<	/* initialize servlink control sendq */
1246	<	lserver->slinkq = buf = MyMalloc(alloclen);
1247	<	lserver->slinkq_ofs = 0;
1248	<	lserver->slinkq_len = alloclen;
1249	<
1250	<	if (IsCapable(server, CAP_ZIP))
1251	<	{
1252	<	/* ziplink */
1253	<	*buf++ = SLINKCMD_SET_ZIP_OUT_LEVEL;
1254	<	*buf++ = 0; /* |          */
1255	<	*buf++ = 1; /* \ len is 1 */
1256	<	*buf++ = ConfigFileEntry.compression_level;
1257	<	*buf++ = SLINKCMD_START_ZIP_IN;
1258	<	*buf++ = SLINKCMD_START_ZIP_OUT;
1259	<	}
1260	<	#ifdef HAVE_LIBCRYPTO
1261	<	if (IsCapable(server, CAP_ENC))
1262	<	{
1263	<	/* Decryption settings */
1264	<	*buf++ = SLINKCMD_SET_CRYPT_IN_CIPHER;
1265	<	*buf++ = 0; /* /                     (upper 8-bits of len) */
1266	<	*buf++ = 1; /* \ cipher id is 1 byte (lower 8-bits of len) */
1267	<	*buf++ = lserver->in_cipher->cipherid;
1268	<	*buf++ = SLINKCMD_SET_CRYPT_IN_KEY;
1269	<	*buf++ = 0; /* keylen < 256 */
1270	<	*buf++ = lserver->in_cipher->keylen;
1271	<	memcpy(buf, lserver->in_key, lserver->in_cipher->keylen);
1272	<	buf += lserver->in_cipher->keylen;
1273	<	/* Encryption settings */
1274	<	*buf++ = SLINKCMD_SET_CRYPT_OUT_CIPHER;
1275	<	*buf++ = 0; /* /                     (upper 8-bits of len) */
1276	<	*buf++ = 1; /* \ cipher id is 1 byte (lower 8-bits of len) */
1277	<	*buf++ = lserver->out_cipher->cipherid;
1278	<	*buf++ = SLINKCMD_SET_CRYPT_OUT_KEY;
1279	<	*buf++ = 0; /* keylen < 256 */
1280	<	*buf++ = lserver->out_cipher->keylen;
1281	<	memcpy(buf, lserver->out_key, lserver->out_cipher->keylen);
1282	<	buf += lserver->out_cipher->keylen;
1283	<	*buf++ = SLINKCMD_START_CRYPT_IN;
1284	<	*buf++ = SLINKCMD_START_CRYPT_OUT;
840	>	if (HasFlag(target_p, FLAGS_EOB))
841	>	sendto_one(client_p, ":%s EOB", target_p->id, client_p);
842		}
1286	–	#endif
843
844	<	/* pass the whole recvq to servlink */
1289	<	DLINK_FOREACH (ptr, lserver->buf_recvq.blocks.head)
1290	<	{
1291	<	block = ptr->data;
1292	<	*buf++ = SLINKCMD_INJECT_RECVQ;
1293	<	*buf++ = (block->size >> 8);
1294	<	*buf++ = (block->size & 0xff);
1295	<	memcpy(buf, &block->data[0], block->size);
1296	<	buf += block->size;
1297	<	}
1298	<
1299	<	dbuf_clear(&lserver->buf_recvq);
1300	<
1301	<	/* pass the whole sendq to servlink */
1302	<	DLINK_FOREACH (ptr, lserver->buf_sendq.blocks.head)
1303	<	{
1304	<	block = ptr->data;
1305	<	*buf++ = SLINKCMD_INJECT_SENDQ;
1306	<	*buf++ = (block->size >> 8);
1307	<	*buf++ = (block->size & 0xff);
1308	<	memcpy(buf, &block->data[0], block->size);
1309	<	buf += block->size;
1310	<	}
1311	<
1312	<	dbuf_clear(&lserver->buf_sendq);
1313	<
1314	<	/* start io */
1315	<	*buf++ = SLINKCMD_INIT;
1316	<
1317	<	/* schedule a write */
1318	<	send_queued_slink_write(server);
1319	<	}
1320	<
1321	<	/* fork_server()
1322	<	*
1323	<	* inputs       - struct Client *server
1324	<	* output       - success: 0 / failure: -1
1325	<	* side effect  - fork, and exec SERVLINK to handle this connection
1326	<	*/
1327	<	static int
1328	<	fork_server(struct Client *server)
1329	<	{
1330	<	#ifndef HAVE_SOCKETPAIR
1331	<	return -1;
1332	<	#else
1333	<	int i;
1334	<	int slink_fds[2][2];
1335	<	/* 0? - ctrl  | 1? - data
1336	<	* ?0 - child | ?1 - parent */
1337	<
1338	<	if (socketpair(AF_UNIX, SOCK_STREAM, 0, slink_fds[0]) < 0)
1339	<	return -1;
1340	<	if (socketpair(AF_UNIX, SOCK_STREAM, 0, slink_fds[1]) < 0)
1341	<	goto free_ctrl_fds;
1342	<
1343	<	if ((i = fork()) < 0)
1344	<	{
1345	<	close(slink_fds[1][0]);  close(slink_fds[1][1]);
1346	<	free_ctrl_fds:
1347	<	close(slink_fds[0][0]);  close(slink_fds[0][1]);
1348	<	return -1;
1349	<	}
1350	<
1351	<	if (i == 0)
1352	<	{
1353	<	char fd_str[3][6];   /* store 3x sizeof("65535") */
1354	<	char *kid_argv[7];
1355	<
1356	<	#ifdef O_ASYNC
1357	<	fcntl(server->localClient->fd.fd, F_SETFL,
1358	<	fcntl(server->localClient->fd.fd, F_GETFL, 0) & ~O_ASYNC);
1359	<	#endif
1360	<	close_fds(&server->localClient->fd);
1361	<	close(slink_fds[0][1]);
1362	<	close(slink_fds[1][1]);
1363	<
1364	<	sprintf(fd_str[0], "%d", slink_fds[0][0]);
1365	<	sprintf(fd_str[1], "%d", slink_fds[1][0]);
1366	<	sprintf(fd_str[2], "%d", server->localClient->fd.fd);
1367	<
1368	<	kid_argv[0] = "-slink";
1369	<	kid_argv[1] = kid_argv[2] = fd_str[0];  /* ctrl */
1370	<	kid_argv[3] = kid_argv[4] = fd_str[1];  /* data */
1371	<	kid_argv[5] = fd_str[2];    /* network */
1372	<	kid_argv[6] = NULL;
1373	<
1374	<	execv(ConfigFileEntry.servlink_path, kid_argv);
1375	<
1376	<	_exit(1);
1377	<	}
1378	<
1379	<	/* close the network fd and the child ends of the pipes */
1380	<	fd_close(&server->localClient->fd);
1381	<	close(slink_fds[0][0]);
1382	<	close(slink_fds[1][0]);
1383	<
1384	<	execute_callback(setup_socket_cb, slink_fds[0][1]);
1385	<	execute_callback(setup_socket_cb, slink_fds[1][1]);
1386	<
1387	<	fd_open(&server->localClient->ctrlfd, slink_fds[0][1], 1, "slink ctrl");
1388	<	fd_open(&server->localClient->fd, slink_fds[1][1], 1, "slink data");
1389	<
1390	<	read_ctrl_packet(&server->localClient->ctrlfd, server);
1391	<	read_packet(&server->localClient->fd, server);
1392	<
1393	<	return 0;
1394	<	#endif
844	>	server_burst(client_p);
845		}
846
847		/* server_burst()
#	Line 1419 | Line 869 | server_burst(struct Client *client_p)
869
870		/* EOB stuff is now in burst_all */
871		/* Always send a PING after connect burst is done */
872	<	sendto_one(client_p, "PING :%s", ID_or_name(&me, client_p));
872	>	sendto_one(client_p, "PING :%s", me.id);
873		}
874
875		/* burst_all()
876		*
877	<	* inputs       - pointer to server to send burst to
877	>	* inputs       - pointer to server to send burst to
878		* output       - NONE
879		* side effects - complete burst of channels/nicks is sent to client_p
880		*/
#	Line 1437 | Line 887 | burst_all(struct Client *client_p)
887		{
888		struct Channel *chptr = ptr->data;
889
890	<	if (dlink_list_length(&chptr->members) != 0)
890	>	if (dlink_list_length(&chptr->members))
891		{
892		burst_members(client_p, chptr);
893		send_channel_modes(client_p, chptr);
894
895	<	if (IsCapable(client_p, CAP_TBURST) ||
896	<	IsCapable(client_p, CAP_TB))
1447	<	send_tb(client_p, chptr);
895	>	if (IsCapable(client_p, CAP_TBURST))
896	>	send_tb(client_p, chptr);
897		}
898		}
899
#	Line 1456 | Line 905 | burst_all(struct Client *client_p)
905
906		if (!HasFlag(target_p, FLAGS_BURSTED) && target_p->from != client_p)
907		sendnick_TS(client_p, target_p);
908	<
908	>
909		DelFlag(target_p, FLAGS_BURSTED);
910		}
911
1463	–	/* We send the time we started the burst, and let the remote host determine an EOB time,
1464	–	** as otherwise we end up sending a EOB of 0   Sending here means it gets sent last -- fl
1465	–	*/
1466	–	/* Its simpler to just send EOB and use the time its been connected.. --fl_ */
912		if (IsCapable(client_p, CAP_EOB))
913	<	sendto_one(client_p, ":%s EOB", ID_or_name(&me, client_p));
913	>	sendto_one(client_p, ":%s EOB", me.id);
914		}
915
916		/*
#	Line 1475 | Line 920 | burst_all(struct Client *client_p)
920		*              - pointer to channel
921		* output       - NONE
922		* side effects - Called on a server burst when
923	<	*                server is CAP_TB|CAP_TBURST capable
923	>	*                server is CAP_TBURST capable
924		*/
925		static void
926		send_tb(struct Client *client_p, struct Channel *chptr)
#	Line 1493 | Line 938 | send_tb(struct Client *client_p, struct
938		* it to their old topic they had before.  Read m_tburst.c:ms_tburst
939		* for further information   -Michael
940		*/
941	<	if (chptr->topic_time != 0)
942	<	{
943	<	if (IsCapable(client_p, CAP_TBURST))
944	<	sendto_one(client_p, ":%s TBURST %lu %s %lu %s :%s",
945	<	me.name, (unsigned long)chptr->channelts, chptr->chname,
946	<	(unsigned long)chptr->topic_time,
1502	<	chptr->topic_info,
1503	<	chptr->topic);
1504	<	else if (IsCapable(client_p, CAP_TB))
1505	<	{
1506	<	if (ConfigChannel.burst_topicwho)
1507	<	{
1508	<	sendto_one(client_p, ":%s TB %s %lu %s :%s",
1509	<	me.name, chptr->chname,
1510	<	(unsigned long)chptr->topic_time,
1511	<	chptr->topic_info, chptr->topic);
1512	<	}
1513	<	else
1514	<	{
1515	<	sendto_one(client_p, ":%s TB %s %lu :%s",
1516	<	me.name, chptr->chname,
1517	<	(unsigned long)chptr->topic_time,
1518	<	chptr->topic);
1519	<	}
1520	<	}
1521	<	}
941	>	if (chptr->topic_time)
942	>	sendto_one(client_p, ":%s TBURST %lu %s %lu %s :%s", me.id,
943	>	(unsigned long)chptr->channelts, chptr->chname,
944	>	(unsigned long)chptr->topic_time,
945	>	chptr->topic_info,
946	>	chptr->topic);
947		}
948
949		/* burst_members()
#	Line 1557 | Line 982 | burst_members(struct Client *client_p, s
982
983		/* serv_connect() - initiate a server connection
984		*
985	<	* inputs       - pointer to conf
985	>	* inputs       - pointer to conf
986		*              - pointer to client doing the connect
987		* output       -
988		* side effects -
#	Line 1572 | Line 997 | burst_members(struct Client *client_p, s
997		* it suceeded or not, and 0 if it fails in here somewhere.
998		*/
999		int
1000	<	serv_connect(struct AccessItem *aconf, struct Client *by)
1000	>	serv_connect(struct MaskItem *conf, struct Client *by)
1001		{
1002	<	struct ConfItem *conf;
1003	<	struct Client *client_p;
1579	<	char buf[HOSTIPLEN];
1002	>	struct Client *client_p = NULL;
1003	>	char buf[HOSTIPLEN + 1] = "";
1004
1005		/* conversion structs */
1006		struct sockaddr_in *v4;
1583	–	/* Make sure aconf is useful */
1584	–	assert(aconf != NULL);
1585	–
1586	–	if(aconf == NULL)
1587	–	return (0);
1007
1008	<	/* XXX should be passing struct ConfItem in the first place */
1009	<	conf = unmap_conf_item(aconf);
1008	>	/* Make sure conf is useful */
1009	>	assert(conf);
1010
1011	<	/* log */
1593	<	getnameinfo((struct sockaddr *)&aconf->ipnum, aconf->ipnum.ss_len,
1011	>	getnameinfo((struct sockaddr *)&conf->addr, conf->addr.ss_len,
1012		buf, sizeof(buf), NULL, 0, NI_NUMERICHOST);
1013	<	ilog(L_NOTICE, "Connect to %s[%s] @%s", aconf->user, aconf->host,
1013	>	ilog(LOG_TYPE_IRCD, "Connect to %s[%s] @%s", conf->name, conf->host,
1014		buf);
1015
1016		/* Still processing a DNS lookup? -> exit */
1017	<	if (aconf->dns_pending)
1017	>	if (conf->dns_pending)
1018		{
1019	<	sendto_realops_flags(UMODE_ALL, L_ALL,
1019	>	sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
1020		"Error connecting to %s: DNS lookup for connect{} in progress.",
1021		conf->name);
1022	<	return (0);
1022	>	return 0;
1023		}
1024
1025	<	if (aconf->dns_failed)
1025	>	if (conf->dns_failed)
1026		{
1027	<	sendto_realops_flags(UMODE_ALL, L_ALL,
1027	>	sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
1028		"Error connecting to %s: DNS lookup for connect{} failed.",
1029		conf->name);
1030	<	return (0);
1030	>	return 0;
1031		}
1032
1033		/* Make sure this server isn't already connected
1034	<	* Note: aconf should ALWAYS be a valid C: line
1034	>	* Note: conf should ALWAYS be a valid C: line
1035		*/
1036	<	if ((client_p = hash_find_server(conf->name)) != NULL)
1037	<	{
1038	<	sendto_realops_flags(UMODE_ALL, L_ADMIN,
1039	<	"Server %s already present from %s",
1040	<	conf->name, get_client_name(client_p, SHOW_IP));
1041	<	sendto_realops_flags(UMODE_ALL, L_OPER,
1042	<	"Server %s already present from %s",
1043	<	conf->name, get_client_name(client_p, MASK_IP));
1036	>	if ((client_p = hash_find_server(conf->name)))
1037	>	{
1038	>	sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE,
1039	>	"Server %s already present from %s",
1040	>	conf->name, get_client_name(client_p, SHOW_IP));
1041	>	sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE,
1042	>	"Server %s already present from %s",
1043	>	conf->name, get_client_name(client_p, MASK_IP));
1044		if (by && IsClient(by) && !MyClient(by))
1045	<	sendto_one(by, ":%s NOTICE %s :Server %s already present from %s",
1046	<	me.name, by->name, conf->name,
1047	<	get_client_name(client_p, MASK_IP));
1630	<	return (0);
1045	>	sendto_one_notice(by, &me, ":Server %s already present from %s",
1046	>	conf->name, get_client_name(client_p, MASK_IP));
1047	>	return 0;
1048		}
1049	<
1049	>
1050		/* Create a local client */
1051		client_p = make_client(NULL);
1052
1053		/* Copy in the server, hostname, fd */
1054		strlcpy(client_p->name, conf->name, sizeof(client_p->name));
1055	<	strlcpy(client_p->host, aconf->host, sizeof(client_p->host));
1055	>	strlcpy(client_p->host, conf->host, sizeof(client_p->host));
1056
1057		/* We already converted the ip once, so lets use it - stu */
1058		strlcpy(client_p->sockhost, buf, sizeof(client_p->sockhost));
1059
1060	<	/* create a socket for the server connection */
1061	<	if (comm_open(&client_p->localClient->fd, aconf->ipnum.ss.ss_family,
1060	>	/* create a socket for the server connection */
1061	>	if (comm_open(&client_p->localClient->fd, conf->addr.ss.ss_family,
1062		SOCK_STREAM, 0, NULL) < 0)
1063		{
1064		/* Eek, failure to create the socket */
1065	<	report_error(L_ALL,
1066	<	"opening stream socket to %s: %s", conf->name, errno);
1065	>	report_error(L_ALL, "opening stream socket to %s: %s",
1066	>	conf->name, errno);
1067		SetDead(client_p);
1068	<	exit_client(client_p, &me, "Connection failed");
1069	<	return (0);
1068	>	exit_client(client_p, "Connection failed");
1069	>	return 0;
1070		}
1071
1072		/* servernames are always guaranteed under HOSTLEN chars */
#	Line 1658 | Line 1075 | serv_connect(struct AccessItem *aconf, s
1075		/* Attach config entries to client here rather than in
1076		* serv_connect_callback(). This to avoid null pointer references.
1077		*/
1078	<	if (!attach_connect_block(client_p, conf->name, aconf->host))
1078	>	if (!attach_connect_block(client_p, conf->name, conf->host))
1079		{
1080	<	sendto_realops_flags(UMODE_ALL, L_ALL,
1081	<	"Host %s is not enabled for connecting:no C/N-line",
1082	<	conf->name);
1083	<	if (by && IsClient(by) && !MyClient(by))
1084	<	sendto_one(by, ":%s NOTICE %s :Connect to host %s failed.",
1085	<	me.name, by->name, client_p->name);
1080	>	sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
1081	>	"Host %s is not enabled for connecting: no connect{} block",
1082	>	conf->name);
1083	>	if (by && IsClient(by) && !MyClient(by))
1084	>	sendto_one_notice(by, &me, ":Connect to host %s failed.", client_p->name);
1085	>
1086		SetDead(client_p);
1087	<	exit_client(client_p, client_p, "Connection failed");
1088	<	return (0);
1087	>	exit_client(client_p, "Connection failed");
1088	>	return 0;
1089		}
1090
1091		/* at this point we have a connection in progress and C/N lines
#	Line 1687 | Line 1104 | serv_connect(struct AccessItem *aconf, s
1104		SetConnecting(client_p);
1105		dlinkAdd(client_p, &client_p->node, &global_client_list);
1106		/* from def_fam */
1107	<	client_p->localClient->aftype = aconf->aftype;
1107	>	client_p->localClient->aftype = conf->aftype;
1108
1109		/* Now, initiate the connection */
1110	<	/* XXX assume that a non 0 type means a specific bind address
1110	>	/* XXX assume that a non 0 type means a specific bind address
1111		* for this connect.
1112		*/
1113	<	switch (aconf->aftype)
1113	>	switch (conf->aftype)
1114		{
1115		case AF_INET:
1116	<	v4 = (struct sockaddr_in*)&aconf->my_ipnum;
1117	<	if (v4->sin_addr.s_addr != 0)
1116	>	v4 = (struct sockaddr_in*)&conf->bind;
1117	>	if (v4->sin_addr.s_addr)
1118		{
1119		struct irc_ssaddr ipn;
1120		memset(&ipn, 0, sizeof(struct irc_ssaddr));
1121		ipn.ss.ss_family = AF_INET;
1122		ipn.ss_port = 0;
1123	<	memcpy(&ipn, &aconf->my_ipnum, sizeof(struct irc_ssaddr));
1124	<	comm_connect_tcp(&client_p->localClient->fd, aconf->host, aconf->port,
1125	<	(struct sockaddr *)&ipn, ipn.ss_len,
1126	<	serv_connect_callback, client_p, aconf->aftype,
1127	<	CONNECTTIMEOUT);
1123	>	memcpy(&ipn, &conf->bind, sizeof(struct irc_ssaddr));
1124	>	comm_connect_tcp(&client_p->localClient->fd, conf->host, conf->port,
1125	>	(struct sockaddr *)&ipn, ipn.ss_len,
1126	>	serv_connect_callback, client_p, conf->aftype,
1127	>	CONNECTTIMEOUT);
1128		}
1129		else if (ServerInfo.specific_ipv4_vhost)
1130		{
#	Line 1716 | Line 1133 | serv_connect(struct AccessItem *aconf, s
1133		ipn.ss.ss_family = AF_INET;
1134		ipn.ss_port = 0;
1135		memcpy(&ipn, &ServerInfo.ip, sizeof(struct irc_ssaddr));
1136	<	comm_connect_tcp(&client_p->localClient->fd, aconf->host, aconf->port,
1136	>	comm_connect_tcp(&client_p->localClient->fd, conf->host, conf->port,
1137		(struct sockaddr *)&ipn, ipn.ss_len,
1138	<	serv_connect_callback, client_p, aconf->aftype,
1139	<	CONNECTTIMEOUT);
1138	>	serv_connect_callback, client_p, conf->aftype,
1139	>	CONNECTTIMEOUT);
1140		}
1141		else
1142	<	comm_connect_tcp(&client_p->localClient->fd, aconf->host, aconf->port,
1143	<	NULL, 0, serv_connect_callback, client_p, aconf->aftype,
1142	>	comm_connect_tcp(&client_p->localClient->fd, conf->host, conf->port,
1143	>	NULL, 0, serv_connect_callback, client_p, conf->aftype,
1144		CONNECTTIMEOUT);
1145		break;
1146		#ifdef IPV6
1147		case AF_INET6:
1148		{
1149	<	struct irc_ssaddr ipn;
1150	<	struct sockaddr_in6 *v6;
1151	<	struct sockaddr_in6 *v6conf;
1152	<
1153	<	memset(&ipn, 0, sizeof(struct irc_ssaddr));
1154	<	v6conf = (struct sockaddr_in6 *)&aconf->my_ipnum;
1155	<	v6 = (struct sockaddr_in6 *)&ipn;
1156	<
1157	<	if (memcmp(&v6conf->sin6_addr, &v6->sin6_addr,
1158	<	sizeof(struct in6_addr)) != 0)
1159	<	{
1160	<	memcpy(&ipn, &aconf->my_ipnum, sizeof(struct irc_ssaddr));
1161	<	ipn.ss.ss_family = AF_INET6;
1162	<	ipn.ss_port = 0;
1163	<	comm_connect_tcp(&client_p->localClient->fd,
1164	<	aconf->host, aconf->port,
1165	<	(struct sockaddr *)&ipn, ipn.ss_len,
1166	<	serv_connect_callback, client_p,
1167	<	aconf->aftype, CONNECTTIMEOUT);
1168	<	}
1752	<	else if (ServerInfo.specific_ipv6_vhost)
1149	>	struct irc_ssaddr ipn;
1150	>	struct sockaddr_in6 *v6;
1151	>	struct sockaddr_in6 *v6conf;
1152	>
1153	>	memset(&ipn, 0, sizeof(struct irc_ssaddr));
1154	>	v6conf = (struct sockaddr_in6 *)&conf->bind;
1155	>	v6 = (struct sockaddr_in6 *)&ipn;
1156	>
1157	>	if (memcmp(&v6conf->sin6_addr, &v6->sin6_addr, sizeof(struct in6_addr)))
1158	>	{
1159	>	memcpy(&ipn, &conf->bind, sizeof(struct irc_ssaddr));
1160	>	ipn.ss.ss_family = AF_INET6;
1161	>	ipn.ss_port = 0;
1162	>	comm_connect_tcp(&client_p->localClient->fd,
1163	>	conf->host, conf->port,
1164	>	(struct sockaddr *)&ipn, ipn.ss_len,
1165	>	serv_connect_callback, client_p,
1166	>	conf->aftype, CONNECTTIMEOUT);
1167	>	}
1168	>	else if (ServerInfo.specific_ipv6_vhost)
1169		{
1170	<	memcpy(&ipn, &ServerInfo.ip6, sizeof(struct irc_ssaddr));
1171	<	ipn.ss.ss_family = AF_INET6;
1172	<	ipn.ss_port = 0;
1173	<	comm_connect_tcp(&client_p->localClient->fd,
1174	<	aconf->host, aconf->port,
1175	<	(struct sockaddr *)&ipn, ipn.ss_len,
1176	<	serv_connect_callback, client_p,
1177	<	aconf->aftype, CONNECTTIMEOUT);
1178	<	}
1179	<	else
1180	<	comm_connect_tcp(&client_p->localClient->fd,
1181	<	aconf->host, aconf->port,
1182	<	NULL, 0, serv_connect_callback, client_p,
1183	<	aconf->aftype, CONNECTTIMEOUT);
1170	>	memcpy(&ipn, &ServerInfo.ip6, sizeof(struct irc_ssaddr));
1171	>	ipn.ss.ss_family = AF_INET6;
1172	>	ipn.ss_port = 0;
1173	>	comm_connect_tcp(&client_p->localClient->fd,
1174	>	conf->host, conf->port,
1175	>	(struct sockaddr *)&ipn, ipn.ss_len,
1176	>	serv_connect_callback, client_p,
1177	>	conf->aftype, CONNECTTIMEOUT);
1178	>	}
1179	>	else
1180	>	comm_connect_tcp(&client_p->localClient->fd,
1181	>	conf->host, conf->port,
1182	>	NULL, 0, serv_connect_callback, client_p,
1183	>	conf->aftype, CONNECTTIMEOUT);
1184		}
1185		#endif
1186		}
1187	<	return (1);
1187	>	return 1;
1188	>	}
1189	>
1190	>	#ifdef HAVE_LIBCRYPTO
1191	>	static void
1192	>	finish_ssl_server_handshake(struct Client *client_p)
1193	>	{
1194	>	struct MaskItem *conf = NULL;
1195	>
1196	>	conf = find_conf_name(&client_p->localClient->confs,
1197	>	client_p->name, CONF_SERVER);
1198	>	if (conf == NULL)
1199	>	{
1200	>	sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE,
1201	>	"Lost connect{} block for %s", get_client_name(client_p, HIDE_IP));
1202	>	sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE,
1203	>	"Lost connect{} block for %s", get_client_name(client_p, MASK_IP));
1204	>
1205	>	exit_client(client_p, "Lost connect{} block");
1206	>	return;
1207	>	}
1208	>
1209	>	sendto_one(client_p, "PASS %s TS %d %s", conf->spasswd, TS_CURRENT, me.id);
1210	>
1211	>	send_capabilities(client_p, 0);
1212	>
1213	>	sendto_one(client_p, "SERVER %s 1 :%s%s",
1214	>	me.name, ConfigServerHide.hidden ? "(H) " : "",
1215	>	me.info);
1216	>
1217	>	/* If we've been marked dead because a send failed, just exit
1218	>	* here now and save everyone the trouble of us ever existing.
1219	>	*/
1220	>	if (IsDead(client_p))
1221	>	{
1222	>	sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE,
1223	>	"%s[%s] went dead during handshake",
1224	>	client_p->name,
1225	>	client_p->host);
1226	>	sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE,
1227	>	"%s went dead during handshake", client_p->name);
1228	>	return;
1229	>	}
1230	>
1231	>	/* don't move to serv_list yet -- we haven't sent a burst! */
1232	>	/* If we get here, we're ok, so lets start reading some data */
1233	>	comm_setselect(&client_p->localClient->fd, COMM_SELECT_READ, read_packet, client_p, 0);
1234		}
1235
1236	+	static void
1237	+	ssl_server_handshake(fde_t *fd, struct Client *client_p)
1238	+	{
1239	+	X509 *cert = NULL;
1240	+	int ret = 0;
1241	+
1242	+	if ((ret = SSL_connect(client_p->localClient->fd.ssl)) <= 0)
1243	+	{
1244	+	switch (SSL_get_error(client_p->localClient->fd.ssl, ret))
1245	+	{
1246	+	case SSL_ERROR_WANT_WRITE:
1247	+	comm_setselect(&client_p->localClient->fd, COMM_SELECT_WRITE,
1248	+	(PF *)ssl_server_handshake, client_p, 0);
1249	+	return;
1250	+	case SSL_ERROR_WANT_READ:
1251	+	comm_setselect(&client_p->localClient->fd, COMM_SELECT_READ,
1252	+	(PF *)ssl_server_handshake, client_p, 0);
1253	+	return;
1254	+	default:
1255	+	{
1256	+	const char *sslerr = ERR_error_string(ERR_get_error(), NULL);
1257	+	sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
1258	+	"Error connecting to %s: %s", client_p->name,
1259	+	sslerr ? sslerr : "unknown SSL error");
1260	+	exit_client(client_p, "Error during SSL handshake");
1261	+	return;
1262	+	}
1263	+	}
1264	+	}
1265	+
1266	+	if ((cert = SSL_get_peer_certificate(client_p->localClient->fd.ssl)))
1267	+	{
1268	+	int res = SSL_get_verify_result(client_p->localClient->fd.ssl);
1269	+	char buf[EVP_MAX_MD_SIZE * 2 + 1] = { '\0' };
1270	+	unsigned char md[EVP_MAX_MD_SIZE] = { '\0' };
1271	+
1272	+	if (res == X509_V_OK || res == X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN ||
1273	+	res == X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE ||
1274	+	res == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT)
1275	+	{
1276	+	unsigned int i = 0, n = 0;
1277	+
1278	+	if (X509_digest(cert, EVP_sha256(), md, &n))
1279	+	{
1280	+	for (; i < n; ++i)
1281	+	snprintf(buf + 2 * i, 3, "%02X", md[i]);
1282	+	client_p->certfp = xstrdup(buf);
1283	+	}
1284	+	}
1285	+	else
1286	+	ilog(LOG_TYPE_IRCD, "Server %s!%s@%s gave bad SSL client certificate: %d",
1287	+	client_p->name, client_p->username, client_p->host, res);
1288	+	X509_free(cert);
1289	+	}
1290	+
1291	+	finish_ssl_server_handshake(client_p);
1292	+	}
1293	+
1294	+	static void
1295	+	ssl_connect_init(struct Client *client_p, struct MaskItem *conf, fde_t *fd)
1296	+	{
1297	+	if ((client_p->localClient->fd.ssl = SSL_new(ServerInfo.client_ctx)) == NULL)
1298	+	{
1299	+	ilog(LOG_TYPE_IRCD, "SSL_new() ERROR! -- %s",
1300	+	ERR_error_string(ERR_get_error(), NULL));
1301	+	SetDead(client_p);
1302	+	exit_client(client_p, "SSL_new failed");
1303	+	return;
1304	+	}
1305	+
1306	+	SSL_set_fd(fd->ssl, fd->fd);
1307	+
1308	+	if (!EmptyString(conf->cipher_list))
1309	+	SSL_set_cipher_list(client_p->localClient->fd.ssl, conf->cipher_list);
1310	+
1311	+	ssl_server_handshake(NULL, client_p);
1312	+	}
1313	+	#endif
1314	+
1315		/* serv_connect_callback() - complete a server connection.
1316	<	*
1316	>	*
1317		* This routine is called after the server connection attempt has
1318		* completed. If unsucessful, an error is sent to ops and the client
1319		* is closed. If sucessful, it goes through the initialisation/check
#	Line 1783 | Line 1324 | static void
1324		serv_connect_callback(fde_t *fd, int status, void *data)
1325		{
1326		struct Client *client_p = data;
1327	<	struct ConfItem *conf=NULL;
1787	<	struct AccessItem *aconf=NULL;
1327	>	struct MaskItem *conf = NULL;
1328
1329		/* First, make sure its a real client! */
1330	<	assert(client_p != NULL);
1330	>	assert(client_p);
1331		assert(&client_p->localClient->fd == fd);
1332
1333		/* Next, for backward purposes, record the ip of the server */
1334		memcpy(&client_p->localClient->ip, &fd->connect.hostaddr,
1335		sizeof(struct irc_ssaddr));
1336	+
1337		/* Check the status */
1338		if (status != COMM_OK)
1339		{
#	Line 1800 | Line 1341 | serv_connect_callback(fde_t *fd, int sta
1341		* Admins get to see any IP, mere opers don't *sigh*
1342		*/
1343		if (ConfigServerHide.hide_server_ips)
1344	<	sendto_realops_flags(UMODE_ALL, L_ADMIN,
1344	>	sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE,
1345		"Error connecting to %s: %s",
1346		client_p->name, comm_errstr(status));
1347		else
1348	<	sendto_realops_flags(UMODE_ALL, L_ADMIN,
1349	<	"Error connecting to %s[%s]: %s", client_p->name,
1350	<	client_p->host, comm_errstr(status));
1351	<
1352	<	sendto_realops_flags(UMODE_ALL, L_OPER,
1353	<	"Error connecting to %s: %s",
1354	<	client_p->name, comm_errstr(status));
1348	>	sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE,
1349	>	"Error connecting to %s[%s]: %s", client_p->name,
1350	>	client_p->host, comm_errstr(status));
1351	>
1352	>	sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE,
1353	>	"Error connecting to %s: %s",
1354	>	client_p->name, comm_errstr(status));
1355
1356		/* If a fd goes bad, call dead_link() the socket is no
1357		* longer valid for reading or writing.
#	Line 1822 | Line 1363 | serv_connect_callback(fde_t *fd, int sta
1363		/* COMM_OK, so continue the connection procedure */
1364		/* Get the C/N lines */
1365		conf = find_conf_name(&client_p->localClient->confs,
1366	<	client_p->name, SERVER_TYPE);
1366	>	client_p->name, CONF_SERVER);
1367		if (conf == NULL)
1368		{
1369	<	sendto_realops_flags(UMODE_ALL, L_ADMIN,
1370	<	"Lost connect{} block for %s", get_client_name(client_p, HIDE_IP));
1371	<	sendto_realops_flags(UMODE_ALL, L_OPER,
1372	<	"Lost connect{} block for %s", get_client_name(client_p, MASK_IP));
1369	>	sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE,
1370	>	"Lost connect{} block for %s", get_client_name(client_p, HIDE_IP));
1371	>	sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE,
1372	>	"Lost connect{} block for %s", get_client_name(client_p, MASK_IP));
1373
1374	<	exit_client(client_p, &me, "Lost connect{} block");
1374	>	exit_client(client_p, "Lost connect{} block");
1375		return;
1376		}
1377
1837	–	aconf = (struct AccessItem *)map_to_conf(conf);
1378		/* Next, send the initial handshake */
1379		SetHandshake(client_p);
1380
1381		#ifdef HAVE_LIBCRYPTO
1382	<	/* Handle all CRYPTLINK links in cryptlink_init */
1843	<	if (IsConfCryptLink(aconf))
1382	>	if (IsConfSSL(conf))
1383		{
1384	<	cryptlink_init(client_p, conf, fd);
1384	>	ssl_connect_init(client_p, conf, fd);
1385		return;
1386		}
1387		#endif
1388
1389	<	/* jdc -- Check and send spasswd, not passwd. */
1851	<	if (!EmptyString(aconf->spasswd))
1852	<	/* Send TS 6 form only if id */
1853	<	sendto_one(client_p, "PASS %s TS %d %s",
1854	<	aconf->spasswd, TS_CURRENT, me.id);
1389	>	sendto_one(client_p, "PASS %s TS %d %s", conf->spasswd, TS_CURRENT, me.id);
1390
1391	<	/* Pass my info to the new server
1857	<	*
1858	<	* Pass on ZIP if supported
1859	<	* Pass on TB if supported.
1860	<	* - Dianora
1861	<	*/
1862	<	send_capabilities(client_p, aconf,
1863	<	(IsConfCompressed(aconf) ? CAP_ZIP : 0)
1864	<	| (IsConfTopicBurst(aconf) ? CAP_TBURST|CAP_TB : 0), 0);
1391	>	send_capabilities(client_p, 0);
1392
1393	<	sendto_one(client_p, "SERVER %s 1 :%s%s",
1394	<	me.name, ConfigServerHide.hidden ? "(H) " : "",
1868	<	me.info);
1393	>	sendto_one(client_p, "SERVER %s 1 :%s%s", me.name,
1394	>	ConfigServerHide.hidden ? "(H) " : "", me.info);
1395
1396		/* If we've been marked dead because a send failed, just exit
1397		* here now and save everyone the trouble of us ever existing.
1398		*/
1399	<	if (IsDead(client_p))
1399	>	if (IsDead(client_p))
1400		{
1401	<	sendto_realops_flags(UMODE_ALL, L_ADMIN,
1402	<	"%s[%s] went dead during handshake",
1401	>	sendto_realops_flags(UMODE_ALL, L_ADMIN, SEND_NOTICE,
1402	>	"%s[%s] went dead during handshake",
1403		client_p->name,
1404	<	client_p->host);
1405	<	sendto_realops_flags(UMODE_ALL, L_OPER,
1406	<	"%s went dead during handshake", client_p->name);
1404	>	client_p->host);
1405	>	sendto_realops_flags(UMODE_ALL, L_OPER, SEND_NOTICE,
1406	>	"%s went dead during handshake", client_p->name);
1407		return;
1408		}
1409
#	Line 1897 | Line 1423 | find_servconn_in_progress(const char *na
1423		cptr = ptr->data;
1424
1425		if (cptr && cptr->name[0])
1426	<	if (match(name, cptr->name))
1426	>	if (!match(name, cptr->name))
1427		return cptr;
1428		}
1903	–
1904	–	return NULL;
1905	–	}
1906	–
1907	–	#ifdef HAVE_LIBCRYPTO
1908	–	/*
1909	–	* sends a CRYPTLINK SERV command.
1910	–	*/
1911	–	void
1912	–	cryptlink_init(struct Client *client_p, struct ConfItem *conf, fde_t *fd)
1913	–	{
1914	–	struct AccessItem *aconf;
1915	–	char *encrypted;
1916	–	unsigned char *key_to_send;
1917	–	char randkey[CIPHERKEYLEN];
1918	–	int enc_len;
1919	–
1920	–	/* get key */
1921	–	if ((!ServerInfo.rsa_private_key) ||
1922	–	(!RSA_check_key(ServerInfo.rsa_private_key)) )
1923	–	{
1924	–	cryptlink_error(client_p, "SERV", "Invalid RSA private key",
1925	–	"Invalid RSA private key");
1926	–	return;
1927	–	}
1928	–
1929	–	aconf = (struct AccessItem *)map_to_conf(conf);
1930	–
1931	–	if (aconf->rsa_public_key == NULL)
1932	–	{
1933	–	cryptlink_error(client_p, "SERV", "Invalid RSA public key",
1934	–	"Invalid RSA public key");
1935	–	return;
1936	–	}
1937	–
1938	–	if (get_randomness((unsigned char *)randkey, CIPHERKEYLEN) != 1)
1939	–	{
1940	–	cryptlink_error(client_p, "SERV", "Couldn't generate keyphrase",
1941	–	"Couldn't generate keyphrase");
1942	–	return;
1943	–	}
1944	–
1945	–	encrypted = MyMalloc(RSA_size(ServerInfo.rsa_private_key));
1946	–	enc_len   = RSA_public_encrypt(CIPHERKEYLEN,
1947	–	(unsigned char *)randkey,
1948	–	(unsigned char *)encrypted,
1949	–	aconf->rsa_public_key,
1950	–	RSA_PKCS1_PADDING);
1951	–
1952	–	memcpy(client_p->localClient->in_key, randkey, CIPHERKEYLEN);
1953	–
1954	–	if (enc_len <= 0)
1955	–	{
1956	–	report_crypto_errors();
1957	–	MyFree(encrypted);
1958	–	cryptlink_error(client_p, "SERV", "Couldn't encrypt data",
1959	–	"Couldn't encrypt data");
1960	–	return;
1961	–	}
1962	–
1963	–	if (!(base64_block(&key_to_send, encrypted, enc_len)))
1964	–	{
1965	–	MyFree(encrypted);
1966	–	cryptlink_error(client_p, "SERV", "Couldn't base64 encode key",
1967	–	"Couldn't base64 encode key");
1968	–	return;
1969	–	}
1970	–
1971	–	send_capabilities(client_p, aconf,
1972	–	(IsConfCompressed(aconf) ? CAP_ZIP : 0)
1973	–	| (IsConfTopicBurst(aconf) ? CAP_TBURST|CAP_TB : 0), CAP_ENC_MASK);
1974	–
1975	–	sendto_one(client_p, "PASS . TS %d %s", TS_CURRENT, me.id);
1976	–	sendto_one(client_p, "CRYPTLINK SERV %s %s :%s%s",
1977	–	me.name, key_to_send,
1978	–	ConfigServerHide.hidden ? "(H) " : "", me.info);
1429
1430	<	SetHandshake(client_p);
1981	<	SetWaitAuth(client_p);
1982	<
1983	<	MyFree(encrypted);
1984	<	MyFree(key_to_send);
1985	<
1986	<	if (IsDead(client_p))
1987	<	cryptlink_error(client_p, "SERV", "Went dead during handshake",
1988	<	"Went dead during handshake");
1989	<	else if (fd != NULL)
1990	<	/* If we get here, we're ok, so lets start reading some data */
1991	<	comm_setselect(fd, COMM_SELECT_READ, read_packet, client_p, 0);
1992	<	}
1993	<
1994	<	void
1995	<	cryptlink_error(struct Client *client_p, const char *type,
1996	<	const char *reason, const char *client_reason)
1997	<	{
1998	<	sendto_realops_flags(UMODE_ALL, L_ADMIN, "%s: CRYPTLINK %s error - %s",
1999	<	get_client_name(client_p, SHOW_IP), type, reason);
2000	<	sendto_realops_flags(UMODE_ALL, L_OPER,  "%s: CRYPTLINK %s error - %s",
2001	<	get_client_name(client_p, MASK_IP), type, reason);
2002	<	ilog(L_ERROR, "%s: CRYPTLINK %s error - %s",
2003	<	get_client_name(client_p, SHOW_IP), type, reason);
2004	<
2005	<	/* If client_reason isn't NULL, then exit the client with the message
2006	<	* defined in the call.
2007	<	*/
2008	<	if ((client_reason != NULL) && (!IsDead(client_p)))
2009	<	exit_client(client_p, &me, client_reason);
2010	<	}
2011	<
2012	<	static char base64_chars[] =
2013	<	"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
2014	<
2015	<	static char base64_values[] =
2016	<	{
2017	<	/* 00-15   */ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
2018	<	/* 16-31   */ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
2019	<	/* 32-47   */ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63,
2020	<	/* 48-63   */ 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1,  0, -1, -1,
2021	<	/* 64-79   */ -1,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14,
2022	<	/* 80-95   */ 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1,
2023	<	/* 96-111  */ -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
2024	<	/* 112-127 */ 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1,
2025	<	/* 128-143 */ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
2026	<	/* 144-159 */ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
2027	<	/* 160-175 */ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
2028	<	/* 186-191 */ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
2029	<	/* 192-207 */ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
2030	<	/* 208-223 */ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
2031	<	/* 224-239 */ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
2032	<	/* 240-255 */ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
2033	<	};
2034	<
2035	<	/*
2036	<	* base64_block will allocate and return a new block of memory
2037	<	* using MyMalloc().  It should be freed after use.
2038	<	*/
2039	<	int
2040	<	base64_block(unsigned char **output, char *data, int len)
2041	<	{
2042	<	unsigned char *out;
2043	<	unsigned char *in = (unsigned char*)data;
2044	<	unsigned long int q_in;
2045	<	int i;
2046	<	int count = 0;
2047	<
2048	<	out = MyMalloc(((((len + 2) - ((len + 2) % 3)) / 3) * 4) + 1);
2049	<
2050	<	/* process 24 bits at a time */
2051	<	for( i = 0; i < len; i += 3)
2052	<	{
2053	<	q_in = 0;
2054	<
2055	<	if ( i + 2 < len )
2056	<	{
2057	<	q_in  = (in[i+2] & 0xc0) << 2;
2058	<	q_in |=  in[i+2];
2059	<	}
2060	<
2061	<	if ( i + 1 < len )
2062	<	{
2063	<	q_in |= (in[i+1] & 0x0f) << 10;
2064	<	q_in |= (in[i+1] & 0xf0) << 12;
2065	<	}
2066	<
2067	<	q_in |= (in[i]   & 0x03) << 20;
2068	<	q_in |=  in[i]           << 22;
2069	<
2070	<	q_in &= 0x3f3f3f3f;
2071	<
2072	<	out[count++] = base64_chars[((q_in >> 24)       )];
2073	<	out[count++] = base64_chars[((q_in >> 16) & 0xff)];
2074	<	out[count++] = base64_chars[((q_in >>  8) & 0xff)];
2075	<	out[count++] = base64_chars[((q_in      ) & 0xff)];
2076	<	}
2077	<	if ( (i - len) > 0 )
2078	<	{
2079	<	out[count-1] = '=';
2080	<	if ( (i - len) > 1 )
2081	<	out[count-2] = '=';
2082	<	}
2083	<
2084	<	out[count] = '\0';
2085	<	*output = out;
2086	<	return (count);
2087	<	}
2088	<
2089	<	/*
2090	<	* unbase64_block will allocate and return a new block of memory
2091	<	* using MyMalloc().  It should be freed after use.
2092	<	*/
2093	<	int
2094	<	unbase64_block(unsigned char **output, char *data, int len)
2095	<	{
2096	<	unsigned char *out;
2097	<	unsigned char *in = (unsigned char*)data;
2098	<	unsigned long int q_in;
2099	<	int i;
2100	<	int count = 0;
2101	<
2102	<	if ((len % 4) != 0)
2103	<	return (0);
2104	<
2105	<	out = MyMalloc(((len / 4) * 3) + 1);
2106	<
2107	<	/* process 32 bits at a time */
2108	<	for( i = 0; (i + 3) < len; i+=4)
2109	<	{
2110	<	/* compress input (chars a, b, c and d) as follows:
2111	<	* (after converting ascii -> base64 value)
2112	<	*
2113	<	* |00000000aaaaaabbbbbbccccccdddddd|
2114	<	* |  765432  107654  321076  543210|
2115	<	*/
2116	<
2117	<	q_in = 0;
2118	<
2119	<	if (base64_values[in[i+3]] > -1)
2120	<	q_in |= base64_values[in[i+3]]      ;
2121	<	if (base64_values[in[i+2]] > -1)
2122	<	q_in |= base64_values[in[i+2]] <<  6;
2123	<	if (base64_values[in[i+1]] > -1)
2124	<	q_in |= base64_values[in[i+1]] << 12;
2125	<	if (base64_values[in[i  ]] > -1)
2126	<	q_in |= base64_values[in[i  ]] << 18;
2127	<
2128	<	out[count++] = (q_in >> 16) & 0xff;
2129	<	out[count++] = (q_in >>  8) & 0xff;
2130	<	out[count++] = (q_in      ) & 0xff;
2131	<	}
2132	<
2133	<	if (in[i-1] == '=') count--;
2134	<	if (in[i-2] == '=') count--;
2135	<
2136	<	out[count] = '\0';
2137	<	*output = out;
2138	<	return (count);
1430	>	return NULL;
1431		}
2140	–
2141	–	#endif /* HAVE_LIBCRYPTO */
2142	–

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