2 * ircd-ratbox: A slightly useful ircd.
3 * s_serv.c: Server related functions.
5 * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
6 * Copyright (C) 1996-2002 Hybrid Development Team
7 * Copyright (C) 2002-2005 ircd-ratbox development team
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
28 #include <openssl/rsa.h>
38 #include "irc_string.h"
39 #include "sprintf_irc.h"
41 #include "ircd_defs.h"
47 #include "s_newconf.h"
55 #include "channel.h" /* chcap_usage_counts stuff... */
62 #define INADDR_NONE ((unsigned int) 0xffffffff)
65 #ifndef HAVE_SOCKETPAIR
66 static int inet_socketpair(int d
, int type
, int protocol
, int sv
[2]);
69 int MaxConnectionCount
= 1;
70 int MaxClientCount
= 1;
71 int refresh_user_links
= 0;
73 static char buf
[BUFSIZE
];
75 static void start_io(struct Client
*server
);
77 static SlinkRplHnd slink_error
;
78 static SlinkRplHnd slink_zipstats
;
80 * list of recognized server capabilities. "TS" is not on the list
81 * because all servers that we talk to already do TS, and the kludged
82 * extra argument to "PASS" takes care of checking that. -orabidoo
84 struct Capability captab
[] = {
91 { "KNOCK", CAP_KNOCK
},
94 { "UNKLN", CAP_UNKLN
},
95 { "CLUSTER", CAP_CLUSTER
},
96 { "ENCAP", CAP_ENCAP
},
97 { "SERVICES", CAP_SERVICE
},
98 { "RSFNC", CAP_RSFNC
},
100 { "EUID", CAP_EUID
},
101 { "REMOVE", CAP_REMOVE
},
105 struct SlinkRplDef slinkrpltab
[] = {
106 {SLINKRPL_ERROR
, slink_error
, SLINKRPL_FLAG_DATA
},
107 {SLINKRPL_ZIPSTATS
, slink_zipstats
, SLINKRPL_FLAG_DATA
},
111 static int fork_server(struct Client
*client_p
);
113 static CNCB serv_connect_callback
;
116 slink_error(unsigned int rpl
, unsigned int len
, unsigned char *data
, struct Client
*server_p
)
118 s_assert(rpl
== SLINKRPL_ERROR
);
121 data
[len
- 1] = '\0';
123 sendto_realops_snomask(SNO_GENERAL
, L_NETWIDE
, "SlinkError for %s: %s", server_p
->name
, data
);
124 exit_client(server_p
, server_p
, &me
, "servlink error -- terminating link");
128 slink_zipstats(unsigned int rpl
, unsigned int len
, unsigned char *data
, struct Client
*server_p
)
130 struct ZipStats zipstats
;
131 u_int32_t in
= 0, in_wire
= 0, out
= 0, out_wire
= 0;
134 s_assert(rpl
== SLINKRPL_ZIPSTATS
);
136 s_assert(IsCapable(server_p
, CAP_ZIP
));
138 /* Yes, it needs to be done this way, no we cannot let the compiler
139 * work with the pointer to the structure. This works around a GCC
140 * bug on SPARC that affects all versions at the time of this writing.
141 * I will feed you to the creatures living in RMS's beard if you do
142 * not leave this as is, without being sure that you are not causing
143 * regression for most of our installed SPARC base.
144 * -jmallett, 04/27/2002
146 memcpy(&zipstats
, &server_p
->localClient
->zipstats
, sizeof(struct ZipStats
));
148 in
|= (data
[i
++] << 24);
149 in
|= (data
[i
++] << 16);
150 in
|= (data
[i
++] << 8);
153 in_wire
|= (data
[i
++] << 24);
154 in_wire
|= (data
[i
++] << 16);
155 in_wire
|= (data
[i
++] << 8);
156 in_wire
|= (data
[i
++]);
158 out
|= (data
[i
++] << 24);
159 out
|= (data
[i
++] << 16);
160 out
|= (data
[i
++] << 8);
163 out_wire
|= (data
[i
++] << 24);
164 out_wire
|= (data
[i
++] << 16);
165 out_wire
|= (data
[i
++] << 8);
166 out_wire
|= (data
[i
++]);
169 zipstats
.inK
+= zipstats
.in
>> 10;
170 zipstats
.in
&= 0x03ff;
172 zipstats
.in_wire
+= in_wire
;
173 zipstats
.inK_wire
+= zipstats
.in_wire
>> 10;
174 zipstats
.in_wire
&= 0x03ff;
177 zipstats
.outK
+= zipstats
.out
>> 10;
178 zipstats
.out
&= 0x03ff;
180 zipstats
.out_wire
+= out_wire
;
181 zipstats
.outK_wire
+= zipstats
.out_wire
>> 10;
182 zipstats
.out_wire
&= 0x03ff;
186 (((double) (zipstats
.inK
- zipstats
.inK_wire
) /
187 (double) zipstats
.inK
) * 100.00);
189 zipstats
.in_ratio
= 0;
191 if(zipstats
.outK
> 0)
193 (((double) (zipstats
.outK
- zipstats
.outK_wire
) /
194 (double) zipstats
.outK
) * 100.00);
196 zipstats
.out_ratio
= 0;
198 memcpy(&server_p
->localClient
->zipstats
, &zipstats
, sizeof(struct ZipStats
));
202 collect_zipstats(void *unused
)
205 struct Client
*target_p
;
207 DLINK_FOREACH(ptr
, serv_list
.head
)
209 target_p
= ptr
->data
;
210 if(IsCapable(target_p
, CAP_ZIP
))
212 /* only bother if we haven't already got something queued... */
213 if(!target_p
->localClient
->slinkq
)
215 target_p
->localClient
->slinkq
= MyMalloc(1); /* sigh.. */
216 target_p
->localClient
->slinkq
[0] = SLINKCMD_ZIPSTATS
;
217 target_p
->localClient
->slinkq_ofs
= 0;
218 target_p
->localClient
->slinkq_len
= 1;
219 send_queued_slink_write(target_p
->localClient
->ctrlfd
, target_p
);
226 * hunt_server - Do the basic thing in delivering the message (command)
227 * across the relays to the specific server (server) for
230 * Note: The command is a format string and *MUST* be
231 * of prefixed style (e.g. ":%s COMMAND %s ...").
232 * Command can have only max 8 parameters.
234 * server parv[server] is the parameter identifying the
238 * parv[server] is replaced with the pointer to the
239 * real servername from the matched client (I'm lazy
242 * returns: (see #defines)
245 hunt_server(struct Client
*client_p
, struct Client
*source_p
,
246 const char *command
, int server
, int parc
, const char *parv
[])
248 struct Client
*target_p
;
255 * Assume it's me, if no server
257 if(parc
<= server
|| EmptyString(parv
[server
]) ||
258 match(me
.name
, parv
[server
]) || match(parv
[server
], me
.name
) ||
259 (strcmp(parv
[server
], me
.id
) == 0))
260 return (HUNTED_ISME
);
262 new = LOCAL_COPY(parv
[server
]);
265 * These are to pickup matches that would cause the following
266 * message to go in the wrong direction while doing quick fast
267 * non-matching lookups.
269 if(MyClient(source_p
))
270 target_p
= find_named_client(new);
272 target_p
= find_client(new);
275 if(target_p
->from
== source_p
->from
&& !MyConnect(target_p
))
278 if(target_p
== NULL
&& (target_p
= find_server(source_p
, new)))
279 if(target_p
->from
== source_p
->from
&& !MyConnect(target_p
))
283 wilds
= (strchr(new, '?') || strchr(new, '*'));
286 * Again, if there are no wild cards involved in the server
287 * name, use the hash lookup
293 if(MyClient(source_p
) || !IsDigit(parv
[server
][0]))
294 sendto_one_numeric(source_p
, ERR_NOSUCHSERVER
,
295 form_str(ERR_NOSUCHSERVER
),
297 return (HUNTED_NOSUCH
);
303 DLINK_FOREACH(ptr
, global_client_list
.head
)
305 if(match(new, ((struct Client
*) (ptr
->data
))->name
))
307 target_p
= ptr
->data
;
316 if(!IsRegistered(target_p
))
318 sendto_one_numeric(source_p
, ERR_NOSUCHSERVER
,
319 form_str(ERR_NOSUCHSERVER
),
321 return HUNTED_NOSUCH
;
324 if(IsMe(target_p
) || MyClient(target_p
))
328 parv
[server
] = get_id(target_p
, target_p
);
330 sendto_one(target_p
, command
, get_id(source_p
, target_p
),
331 parv
[1], parv
[2], parv
[3], parv
[4], parv
[5], parv
[6], parv
[7], parv
[8]);
333 return (HUNTED_PASS
);
336 if(!IsDigit(parv
[server
][0]))
337 sendto_one_numeric(source_p
, ERR_NOSUCHSERVER
,
338 form_str(ERR_NOSUCHSERVER
), parv
[server
]);
339 return (HUNTED_NOSUCH
);
343 * try_connections - scan through configuration and try new connections.
344 * Returns the calendar time when the next call to this
345 * function should be made latest. (No harm done if this
346 * is called earlier or later...)
349 try_connections(void *unused
)
351 struct Client
*client_p
;
352 struct server_conf
*server_p
= NULL
;
353 struct server_conf
*tmp_p
;
356 int connecting
= FALSE
;
360 DLINK_FOREACH(ptr
, server_conf_list
.head
)
364 if(ServerConfIllegal(tmp_p
) || !ServerConfAutoconn(tmp_p
))
367 cltmp
= tmp_p
->class;
370 * Skip this entry if the use of it is still on hold until
371 * future. Otherwise handle this entry (and set it on hold
372 * until next time). Will reset only hold times, if already
373 * made one successfull connection... [this algorithm is
374 * a bit fuzzy... -- msa >;) ]
376 if(tmp_p
->hold
> CurrentTime
)
378 if(next
> tmp_p
->hold
|| next
== 0)
383 confrq
= get_con_freq(cltmp
);
384 tmp_p
->hold
= CurrentTime
+ confrq
;
387 * Found a CONNECT config with port specified, scan clients
388 * and see if this server is already connected?
390 client_p
= find_server(NULL
, tmp_p
->name
);
392 if(!client_p
&& (CurrUsers(cltmp
) < MaxUsers(cltmp
)) && !connecting
)
396 /* We connect only one at time... */
400 if((next
> tmp_p
->hold
) || (next
== 0))
404 /* TODO: change this to set active flag to 0 when added to event! --Habeeb */
405 if(GlobalSetOptions
.autoconn
== 0)
411 /* move this connect entry to end.. */
412 dlinkDelete(&server_p
->node
, &server_conf_list
);
413 dlinkAddTail(server_p
, &server_p
->node
, &server_conf_list
);
416 * We used to only print this if serv_connect() actually
417 * suceeded, but since comm_tcp_connect() can call the callback
418 * immediately if there is an error, we were getting error messages
419 * in the wrong order. SO, we just print out the activated line,
420 * and let serv_connect() / serv_connect_callback() print an
421 * error afterwards if it fails.
424 #ifndef HIDE_SERVERS_IPS
425 sendto_realops_snomask(SNO_GENERAL
, L_NETWIDE
,
426 "Connection to %s[%s] activated.",
427 server_p
->name
, server_p
->host
);
429 sendto_realops_snomask(SNO_GENERAL
, L_NETWIDE
,
430 "Connection to %s activated",
434 serv_connect(server_p
, 0);
438 check_server(const char *name
, struct Client
*client_p
)
440 struct server_conf
*server_p
= NULL
;
441 struct server_conf
*tmp_p
;
445 s_assert(NULL
!= client_p
);
449 if(!(client_p
->localClient
->passwd
))
452 if(strlen(name
) > HOSTLEN
)
455 DLINK_FOREACH(ptr
, server_conf_list
.head
)
459 if(ServerConfIllegal(tmp_p
))
462 if(!match(tmp_p
->name
, name
))
467 /* XXX: Fix me for IPv6 */
468 /* XXX sockhost is the IPv4 ip as a string */
469 if(match(tmp_p
->host
, client_p
->host
) ||
470 match(tmp_p
->host
, client_p
->sockhost
))
474 if(ServerConfEncrypted(tmp_p
))
476 if(!strcmp(tmp_p
->passwd
, crypt(client_p
->localClient
->passwd
,
483 else if(!strcmp(tmp_p
->passwd
, client_p
->localClient
->passwd
))
494 attach_server_conf(client_p
, server_p
);
496 /* clear ZIP/TB if they support but we dont want them */
498 if(!ServerConfCompressed(server_p
))
500 ClearCap(client_p
, CAP_ZIP
);
502 if(!ServerConfTb(server_p
))
503 ClearCap(client_p
, CAP_TB
);
511 * inputs - Client pointer to send to
512 * - int flag of capabilities that this server has
514 * side effects - send the CAPAB line to a server -orabidoo
518 send_capabilities(struct Client
*client_p
, int cap_can_send
)
520 struct Capability
*cap
;
521 char msgbuf
[BUFSIZE
];
527 for (cap
= captab
; cap
->name
; ++cap
)
529 if(cap
->cap
& cap_can_send
)
531 tl
= ircsprintf(t
, "%s ", cap
->name
);
539 sendto_one(client_p
, "CAPAB :%s", msgbuf
);
544 * input - client to burst to, channel name, list to burst, mode flag
546 * side effects - client is sent a list of +b, or +e, or +I modes
549 burst_modes_TS5(struct Client
*client_p
, char *chname
, dlink_list
*list
, char flag
)
553 char mbuf
[MODEBUFLEN
];
562 mlen
= ircsprintf(buf
, ":%s MODE %s +", me
.name
, chname
);
568 DLINK_FOREACH(ptr
, list
->head
)
571 tlen
= strlen(banptr
->banstr
) + 3;
574 if(tlen
> MODEBUFLEN
)
577 if((count
>= MAXMODEPARAMS
) || ((cur_len
+ tlen
+ 2) > (BUFSIZE
- 3)))
579 sendto_one(client_p
, "%s%s %s", buf
, mbuf
, pbuf
);
589 pp
+= ircsprintf(pp
, "%s ", banptr
->banstr
);
595 sendto_one(client_p
, "%s%s %s", buf
, mbuf
, pbuf
);
600 * input - client to burst to, channel name, list to burst, mode flag
602 * side effects - client is sent a list of +b, +e, or +I modes
605 burst_modes_TS6(struct Client
*client_p
, struct Channel
*chptr
,
606 dlink_list
*list
, char flag
)
615 cur_len
= mlen
= ircsprintf(buf
, ":%s BMASK %ld %s %c :",
616 me
.id
, (long) chptr
->channelts
, chptr
->chname
, flag
);
619 DLINK_FOREACH(ptr
, list
->head
)
623 tlen
= strlen(banptr
->banstr
) + 1;
626 if(cur_len
+ tlen
> BUFSIZE
- 3)
628 /* the one we're trying to send doesnt fit at all! */
635 /* chop off trailing space and send.. */
637 sendto_one(client_p
, "%s", buf
);
642 ircsprintf(t
, "%s ", banptr
->banstr
);
647 /* cant ever exit the loop above without having modified buf,
648 * chop off trailing space and send.
651 sendto_one(client_p
, "%s", buf
);
657 * inputs - client (server) to send nick towards
658 * - client to send nick for
660 * side effects - NICK message is sent towards given client_p
663 burst_TS5(struct Client
*client_p
)
665 static char ubuf
[12];
666 struct Client
*target_p
;
667 struct Channel
*chptr
;
668 struct membership
*msptr
;
669 hook_data_client hclientinfo
;
670 hook_data_channel hchaninfo
;
677 hclientinfo
.client
= hchaninfo
.client
= client_p
;
679 DLINK_FOREACH(ptr
, global_client_list
.head
)
681 target_p
= ptr
->data
;
683 if(!IsPerson(target_p
))
686 send_umode(NULL
, target_p
, 0, 0, ubuf
);
693 sendto_one(client_p
, "NICK %s %d %ld %s %s %s %s :%s",
694 target_p
->name
, target_p
->hopcount
+ 1,
695 (long) target_p
->tsinfo
, ubuf
,
696 target_p
->username
, target_p
->host
,
697 target_p
->user
->server
, target_p
->info
);
699 if(IsDynSpoof(target_p
))
700 sendto_one(client_p
, ":%s ENCAP * REALHOST %s",
701 target_p
->name
, target_p
->orighost
);
702 if(!EmptyString(target_p
->user
->suser
))
703 sendto_one(client_p
, ":%s ENCAP * LOGIN %s",
704 target_p
->name
, target_p
->user
->suser
);
705 if(target_p
->operflags
)
707 /* :nenolod ENCAP * OPER AbCDEfG */
708 sendto_one(client_p
, ":%s ENCAP * OPER %s", target_p
->name
,
709 get_oper_privs(target_p
->operflags
));
712 if(ConfigFileEntry
.burst_away
&& !EmptyString(target_p
->user
->away
))
713 sendto_one(client_p
, ":%s AWAY :%s",
714 target_p
->name
, target_p
->user
->away
);
716 hclientinfo
.target
= target_p
;
717 call_hook(h_burst_client
, &hclientinfo
);
720 DLINK_FOREACH(ptr
, global_channel_list
.head
)
724 if(*chptr
->chname
!= '#')
727 cur_len
= mlen
= ircsprintf(buf
, ":%s SJOIN %ld %s %s :", me
.name
,
728 (long) chptr
->channelts
, chptr
->chname
,
729 channel_modes(chptr
, client_p
));
733 DLINK_FOREACH(uptr
, chptr
->members
.head
)
737 tlen
= strlen(msptr
->client_p
->name
) + 1;
738 if(is_real_chanop(msptr
))
743 if(cur_len
+ tlen
>= BUFSIZE
- 3)
747 sendto_one(client_p
, "%s", buf
);
752 ircsprintf(t
, "%s%s ", find_channel_status(msptr
, 1),
753 msptr
->client_p
->name
);
759 if (dlink_list_length(&chptr
->members
) > 0)
761 /* remove trailing space */
765 sendto_one(client_p
, "%s", buf
);
767 burst_modes_TS5(client_p
, chptr
->chname
, &chptr
->banlist
, 'b');
769 if(IsCapable(client_p
, CAP_EX
))
770 burst_modes_TS5(client_p
, chptr
->chname
, &chptr
->exceptlist
, 'e');
772 if(IsCapable(client_p
, CAP_IE
))
773 burst_modes_TS5(client_p
, chptr
->chname
, &chptr
->invexlist
, 'I');
775 burst_modes_TS5(client_p
, chptr
->chname
, &chptr
->quietlist
, 'q');
777 if(IsCapable(client_p
, CAP_TB
) && chptr
->topic
!= NULL
)
778 sendto_one(client_p
, ":%s TB %s %ld %s%s:%s",
779 me
.name
, chptr
->chname
, (long) chptr
->topic_time
,
780 ConfigChannel
.burst_topicwho
? chptr
->topic_info
: "",
781 ConfigChannel
.burst_topicwho
? " " : "",
784 hchaninfo
.chptr
= chptr
;
785 call_hook(h_burst_channel
, &hchaninfo
);
788 hclientinfo
.target
= NULL
;
789 call_hook(h_burst_finished
, &hclientinfo
);
795 * inputs - client (server) to send nick towards
796 * - client to send nick for
798 * side effects - NICK message is sent towards given client_p
801 burst_TS6(struct Client
*client_p
)
803 static char ubuf
[12];
804 struct Client
*target_p
;
805 struct Channel
*chptr
;
806 struct membership
*msptr
;
807 hook_data_client hclientinfo
;
808 hook_data_channel hchaninfo
;
815 hclientinfo
.client
= hchaninfo
.client
= client_p
;
817 DLINK_FOREACH(ptr
, global_client_list
.head
)
819 target_p
= ptr
->data
;
821 if(!IsPerson(target_p
))
824 send_umode(NULL
, target_p
, 0, 0, ubuf
);
831 if(has_id(target_p
) && IsCapable(client_p
, CAP_EUID
))
832 sendto_one(client_p
, ":%s EUID %s %d %ld %s %s %s %s %s %s %s :%s",
833 target_p
->servptr
->id
, target_p
->name
,
834 target_p
->hopcount
+ 1,
835 (long) target_p
->tsinfo
, ubuf
,
836 target_p
->username
, target_p
->host
,
837 IsIPSpoof(target_p
) ? "0" : target_p
->sockhost
,
839 IsDynSpoof(target_p
) ? target_p
->orighost
: "*",
840 EmptyString(target_p
->user
->suser
) ? "*" : target_p
->user
->suser
,
842 else if(has_id(target_p
))
843 sendto_one(client_p
, ":%s UID %s %d %ld %s %s %s %s %s :%s",
844 target_p
->servptr
->id
, target_p
->name
,
845 target_p
->hopcount
+ 1,
846 (long) target_p
->tsinfo
, ubuf
,
847 target_p
->username
, target_p
->host
,
848 IsIPSpoof(target_p
) ? "0" : target_p
->sockhost
,
849 target_p
->id
, target_p
->info
);
851 sendto_one(client_p
, "NICK %s %d %ld %s %s %s %s :%s",
853 target_p
->hopcount
+ 1,
854 (long) target_p
->tsinfo
,
856 target_p
->username
, target_p
->host
,
857 target_p
->user
->server
, target_p
->info
);
859 if(!has_id(target_p
) || !IsCapable(client_p
, CAP_EUID
))
861 if(IsDynSpoof(target_p
))
862 sendto_one(client_p
, ":%s ENCAP * REALHOST %s",
863 use_id(target_p
), target_p
->orighost
);
864 if(!EmptyString(target_p
->user
->suser
))
865 sendto_one(client_p
, ":%s ENCAP * LOGIN %s",
866 use_id(target_p
), target_p
->user
->suser
);
869 if(target_p
->operflags
)
871 /* :nenolod ENCAP * OPER AbCDEfG */
872 sendto_one(client_p
, ":%s ENCAP * OPER %s", use_id(target_p
),
873 get_oper_privs(target_p
->operflags
));
876 if(ConfigFileEntry
.burst_away
&& !EmptyString(target_p
->user
->away
))
877 sendto_one(client_p
, ":%s AWAY :%s",
879 target_p
->user
->away
);
881 hclientinfo
.target
= target_p
;
882 call_hook(h_burst_client
, &hclientinfo
);
885 DLINK_FOREACH(ptr
, global_channel_list
.head
)
889 if(*chptr
->chname
!= '#')
892 cur_len
= mlen
= ircsprintf(buf
, ":%s SJOIN %ld %s %s :", me
.id
,
893 (long) chptr
->channelts
, chptr
->chname
,
894 channel_modes(chptr
, client_p
));
898 DLINK_FOREACH(uptr
, chptr
->members
.head
)
902 tlen
= strlen(use_id(msptr
->client_p
)) + 1;
903 if(is_real_chanop(msptr
))
908 if(cur_len
+ tlen
>= BUFSIZE
- 3)
911 sendto_one(client_p
, "%s", buf
);
916 ircsprintf(t
, "%s%s ", find_channel_status(msptr
, 1),
917 use_id(msptr
->client_p
));
923 if (dlink_list_length(&chptr
->members
) > 0)
925 /* remove trailing space */
928 sendto_one(client_p
, "%s", buf
);
930 if(dlink_list_length(&chptr
->banlist
) > 0)
931 burst_modes_TS6(client_p
, chptr
, &chptr
->banlist
, 'b');
933 if(IsCapable(client_p
, CAP_EX
) &&
934 dlink_list_length(&chptr
->exceptlist
) > 0)
935 burst_modes_TS6(client_p
, chptr
, &chptr
->exceptlist
, 'e');
937 if(IsCapable(client_p
, CAP_IE
) &&
938 dlink_list_length(&chptr
->invexlist
) > 0)
939 burst_modes_TS6(client_p
, chptr
, &chptr
->invexlist
, 'I');
941 if(dlink_list_length(&chptr
->quietlist
) > 0)
942 burst_modes_TS6(client_p
, chptr
, &chptr
->quietlist
, 'q');
944 if(IsCapable(client_p
, CAP_TB
) && chptr
->topic
!= NULL
)
945 sendto_one(client_p
, ":%s TB %s %ld %s%s:%s",
946 me
.id
, chptr
->chname
, (long) chptr
->topic_time
,
947 ConfigChannel
.burst_topicwho
? chptr
->topic_info
: "",
948 ConfigChannel
.burst_topicwho
? " " : "",
951 hchaninfo
.chptr
= chptr
;
952 call_hook(h_burst_channel
, &hchaninfo
);
955 hclientinfo
.target
= NULL
;
956 call_hook(h_burst_finished
, &hclientinfo
);
960 * show_capabilities - show current server capabilities
962 * inputs - pointer to an struct Client
963 * output - pointer to static string
964 * side effects - build up string representing capabilities of server listed
967 show_capabilities(struct Client
*target_p
)
969 static char msgbuf
[BUFSIZE
];
970 struct Capability
*cap
;
975 tl
= ircsprintf(msgbuf
, "TS ");
978 if(!IsServer(target_p
) || !target_p
->serv
->caps
) /* short circuit if no caps */
984 for (cap
= captab
; cap
->cap
; ++cap
)
986 if(cap
->cap
& target_p
->serv
->caps
)
988 tl
= ircsprintf(t
, "%s ", cap
->name
);
1002 * inputs - pointer to a struct Client
1007 server_estab(struct Client
*client_p
)
1009 struct Client
*target_p
;
1010 struct server_conf
*server_p
;
1011 hook_data_client hdata
;
1015 s_assert(NULL
!= client_p
);
1016 if(client_p
== NULL
)
1018 ClearAccess(client_p
);
1020 host
= client_p
->name
;
1022 if((server_p
= client_p
->localClient
->att_sconf
) == NULL
)
1024 /* This shouldn't happen, better tell the ops... -A1kmm */
1025 sendto_realops_snomask(SNO_GENERAL
, L_NETWIDE
,
1026 "Warning: Lost connect{} block for server %s!", host
);
1027 return exit_client(client_p
, client_p
, client_p
, "Lost connect{} block!");
1030 /* We shouldn't have to check this, it should already done before
1031 * server_estab is called. -A1kmm
1033 if(client_p
->localClient
->passwd
)
1035 memset(client_p
->localClient
->passwd
, 0, strlen(client_p
->localClient
->passwd
));
1036 MyFree(client_p
->localClient
->passwd
);
1037 client_p
->localClient
->passwd
= NULL
;
1040 /* Its got identd , since its a server */
1043 /* If there is something in the serv_list, it might be this
1044 * connecting server..
1046 if(!ServerInfo
.hub
&& serv_list
.head
)
1048 if(client_p
!= serv_list
.head
->data
|| serv_list
.head
->next
)
1050 ServerStats
->is_ref
++;
1051 sendto_one(client_p
, "ERROR :I'm a leaf not a hub");
1052 return exit_client(client_p
, client_p
, client_p
, "I'm a leaf");
1056 if(IsUnknown(client_p
))
1059 * jdc -- 1. Use EmptyString(), not [0] index reference.
1060 * 2. Check ->spasswd, not ->passwd.
1062 if(!EmptyString(server_p
->spasswd
))
1064 /* kludge, if we're not using TS6, dont ever send
1065 * ourselves as being TS6 capable.
1067 if(ServerInfo
.use_ts6
)
1068 sendto_one(client_p
, "PASS %s TS %d :%s",
1069 server_p
->spasswd
, TS_CURRENT
, me
.id
);
1071 sendto_one(client_p
, "PASS %s :TS",
1075 /* pass info to new server */
1076 send_capabilities(client_p
, default_server_capabs
1077 | (ServerConfCompressed(server_p
) ? CAP_ZIP_SUPPORTED
: 0)
1078 | (ServerConfTb(server_p
) ? CAP_TB
: 0));
1080 sendto_one(client_p
, "SERVER %s 1 :%s%s",
1082 ConfigServerHide
.hidden
? "(H) " : "",
1083 (me
.info
[0]) ? (me
.info
) : "IRCers United");
1086 if(!comm_set_buffers(client_p
->localClient
->fd
, READBUF_SIZE
))
1087 report_error(SETBUF_ERROR_MSG
,
1088 get_server_name(client_p
, SHOW_IP
),
1089 log_client_name(client_p
, SHOW_IP
), errno
);
1091 /* Hand the server off to servlink now */
1092 if(IsCapable(client_p
, CAP_ZIP
))
1094 if(fork_server(client_p
) < 0)
1096 sendto_realops_snomask(SNO_GENERAL
, L_NETWIDE
,
1097 "Warning: fork failed for server %s -- check servlink_path (%s)",
1098 get_server_name(client_p
, HIDE_IP
),
1099 ConfigFileEntry
.servlink_path
);
1100 return exit_client(client_p
, client_p
, client_p
, "Fork failed");
1103 SetServlink(client_p
);
1106 sendto_one(client_p
, "SVINFO %d %d 0 :%ld", TS_CURRENT
, TS_MIN
, CurrentTime
);
1108 client_p
->servptr
= &me
;
1110 if(IsAnyDead(client_p
))
1111 return CLIENT_EXITED
;
1113 SetServer(client_p
);
1115 /* Update the capability combination usage counts */
1116 set_chcap_usage_counts(client_p
);
1118 dlinkAdd(client_p
, &client_p
->lnode
, &me
.serv
->servers
);
1119 dlinkMoveNode(&client_p
->localClient
->tnode
, &unknown_list
, &serv_list
);
1120 dlinkAddTailAlloc(client_p
, &global_serv_list
);
1122 if(has_id(client_p
))
1123 add_to_id_hash(client_p
->id
, client_p
);
1125 add_to_client_hash(client_p
->name
, client_p
);
1126 /* doesnt duplicate client_p->serv if allocated this struct already */
1127 make_server(client_p
);
1128 client_p
->serv
->up
= me
.name
;
1129 client_p
->serv
->upid
= me
.id
;
1131 client_p
->serv
->caps
= client_p
->localClient
->caps
;
1133 if(client_p
->localClient
->fullcaps
)
1135 DupString(client_p
->serv
->fullcaps
, client_p
->localClient
->fullcaps
);
1136 MyFree(client_p
->localClient
->fullcaps
);
1137 client_p
->localClient
->fullcaps
= NULL
;
1140 /* add it to scache */
1141 find_or_add(client_p
->name
);
1142 client_p
->localClient
->firsttime
= CurrentTime
;
1143 /* fixing eob timings.. -gnp */
1145 /* Show the real host/IP to admins */
1146 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1147 "Link with %s established: (%s) link",
1148 get_server_name(client_p
, SHOW_IP
),
1149 show_capabilities(client_p
));
1151 ilog(L_SERVER
, "Link with %s established: (%s) link",
1152 log_client_name(client_p
, SHOW_IP
), show_capabilities(client_p
));
1155 hdata
.target
= client_p
;
1156 call_hook(h_server_introduced
, &hdata
);
1158 if(HasServlink(client_p
))
1160 /* we won't overflow FD_DESC_SZ here, as it can hold
1161 * client_p->name + 64
1163 comm_note(client_p
->localClient
->fd
, "slink data: %s", client_p
->name
);
1164 comm_note(client_p
->localClient
->ctrlfd
, "slink ctrl: %s", client_p
->name
);
1167 comm_note(client_p
->localClient
->fd
, "Server: %s", client_p
->name
);
1170 ** Old sendto_serv_but_one() call removed because we now
1171 ** need to send different names to different servers
1172 ** (domain name matching) Send new server to other servers.
1174 DLINK_FOREACH(ptr
, serv_list
.head
)
1176 target_p
= ptr
->data
;
1178 if(target_p
== client_p
)
1181 if(has_id(target_p
) && has_id(client_p
))
1183 sendto_one(target_p
, ":%s SID %s 2 %s :%s%s",
1184 me
.id
, client_p
->name
, client_p
->id
,
1185 IsHidden(client_p
) ? "(H) " : "", client_p
->info
);
1187 if(IsCapable(target_p
, CAP_ENCAP
) &&
1188 !EmptyString(client_p
->serv
->fullcaps
))
1189 sendto_one(target_p
, ":%s ENCAP * GCAP :%s",
1190 client_p
->id
, client_p
->serv
->fullcaps
);
1194 sendto_one(target_p
, ":%s SERVER %s 2 :%s%s",
1195 me
.name
, client_p
->name
,
1196 IsHidden(client_p
) ? "(H) " : "", client_p
->info
);
1198 if(IsCapable(target_p
, CAP_ENCAP
) &&
1199 !EmptyString(client_p
->serv
->fullcaps
))
1200 sendto_one(target_p
, ":%s ENCAP * GCAP :%s",
1201 client_p
->name
, client_p
->serv
->fullcaps
);
1206 ** Pass on my client information to the new server
1208 ** First, pass only servers (idea is that if the link gets
1209 ** cancelled beacause the server was already there,
1210 ** there are no NICK's to be cancelled...). Of course,
1211 ** if cancellation occurs, all this info is sent anyway,
1212 ** and I guess the link dies when a read is attempted...? --msa
1214 ** Note: Link cancellation to occur at this point means
1215 ** that at least two servers from my fragment are building
1216 ** up connection this other fragment at the same time, it's
1217 ** a race condition, not the normal way of operation...
1219 ** ALSO NOTE: using the get_client_name for server names--
1220 ** see previous *WARNING*!!! (Also, original inpath
1223 DLINK_FOREACH(ptr
, global_serv_list
.head
)
1225 target_p
= ptr
->data
;
1227 /* target_p->from == target_p for target_p == client_p */
1228 if(IsMe(target_p
) || target_p
->from
== client_p
)
1231 /* presumption, if target has an id, so does its uplink */
1232 if(has_id(client_p
) && has_id(target_p
))
1233 sendto_one(client_p
, ":%s SID %s %d %s :%s%s",
1234 target_p
->serv
->upid
, target_p
->name
,
1235 target_p
->hopcount
+ 1, target_p
->id
,
1236 IsHidden(target_p
) ? "(H) " : "", target_p
->info
);
1238 sendto_one(client_p
, ":%s SERVER %s %d :%s%s",
1240 target_p
->name
, target_p
->hopcount
+ 1,
1241 IsHidden(target_p
) ? "(H) " : "", target_p
->info
);
1243 if(IsCapable(client_p
, CAP_ENCAP
) &&
1244 !EmptyString(target_p
->serv
->fullcaps
))
1245 sendto_one(client_p
, ":%s ENCAP * GCAP :%s",
1246 get_id(target_p
, client_p
),
1247 target_p
->serv
->fullcaps
);
1250 if(has_id(client_p
))
1251 burst_TS6(client_p
);
1253 burst_TS5(client_p
);
1255 /* Always send a PING after connect burst is done */
1256 sendto_one(client_p
, "PING :%s", get_id(&me
, client_p
));
1258 free_pre_client(client_p
);
1264 start_io(struct Client
*server
)
1266 unsigned char *iobuf
;
1271 iobuf
= MyMalloc(256); /* XXX: This seems arbitrary. Perhaps make it IRCD_BUFSIZE? --nenolod */
1273 if(IsCapable(server
, CAP_ZIP
))
1276 iobuf
[c
++] = SLINKCMD_SET_ZIP_OUT_LEVEL
;
1277 iobuf
[c
++] = 0; /* | */
1278 iobuf
[c
++] = 1; /* \ len is 1 */
1279 iobuf
[c
++] = ConfigFileEntry
.compression_level
;
1280 iobuf
[c
++] = SLINKCMD_START_ZIP_IN
;
1281 iobuf
[c
++] = SLINKCMD_START_ZIP_OUT
;
1284 while (MyConnect(server
))
1288 iobuf
= MyRealloc(iobuf
, (c
+ READBUF_SIZE
+ 64));
1290 /* store data in c+3 to allow for SLINKCMD_INJECT_RECVQ and len u16 */
1291 linelen
= linebuf_get(&server
->localClient
->buf_recvq
, (char *) (iobuf
+ c
+ 3), READBUF_SIZE
, LINEBUF_PARTIAL
, LINEBUF_RAW
); /* include partial lines */
1295 iobuf
[c
++] = SLINKCMD_INJECT_RECVQ
;
1296 iobuf
[c
++] = (linelen
>> 8);
1297 iobuf
[c
++] = (linelen
& 0xff);
1304 while (MyConnect(server
))
1308 iobuf
= MyRealloc(iobuf
, (c
+ BUF_DATA_SIZE
+ 64));
1310 /* store data in c+3 to allow for SLINKCMD_INJECT_RECVQ and len u16 */
1311 linelen
= linebuf_get(&server
->localClient
->buf_sendq
,
1312 (char *) (iobuf
+ c
+ 3), READBUF_SIZE
,
1313 LINEBUF_PARTIAL
, LINEBUF_PARSED
); /* include partial lines */
1317 iobuf
[c
++] = SLINKCMD_INJECT_SENDQ
;
1318 iobuf
[c
++] = (linelen
>> 8);
1319 iobuf
[c
++] = (linelen
& 0xff);
1327 iobuf
[c
++] = SLINKCMD_INIT
;
1329 server
->localClient
->slinkq
= iobuf
;
1330 server
->localClient
->slinkq_ofs
= 0;
1331 server
->localClient
->slinkq_len
= c
;
1333 /* schedule a write */
1334 send_queued_slink_write(server
->localClient
->ctrlfd
, server
);
1340 * inputs - struct Client *server
1341 * output - success: 0 / failure: -1
1342 * side effect - fork, and exec SERVLINK to handle this connection
1345 fork_server(struct Client
*server
)
1354 char slink
[] = "-slink";
1358 #ifdef HAVE_SOCKETPAIR
1359 if(socketpair(AF_UNIX
, SOCK_STREAM
, 0, ctrl_fds
) < 0)
1361 if(inet_socketpair(AF_INET
,SOCK_STREAM
, 0, ctrl_fds
) < 0)
1368 #ifdef HAVE_SOCKETPAIR
1369 if(socketpair(AF_UNIX
, SOCK_STREAM
, 0, data_fds
) < 0)
1371 if(inet_socketpair(AF_INET
,SOCK_STREAM
, 0, data_fds
) < 0)
1377 if((ret
= vfork()) < 0)
1379 if((ret
= fork()) < 0)
1384 /* set our fds as non blocking and close everything else */
1385 for (i
= 0; i
< HARD_FDLIMIT
; i
++)
1389 if((i
== ctrl_fds
[1]) || (i
== data_fds
[1]) || (i
== server
->localClient
->fd
))
1396 if(i
> 2) /* don't close std* */
1402 ircsnprintf(fd_str
[0], sizeof(fd_str
[0]), "%d", ctrl_fds
[1]);
1403 ircsnprintf(fd_str
[1], sizeof(fd_str
[1]), "%d", data_fds
[1]);
1404 ircsnprintf(fd_str
[2], sizeof(fd_str
[2]), "%d", server
->localClient
->fd
);
1405 kid_argv
[0] = slink
;
1406 kid_argv
[1] = fd_str
[0];
1407 kid_argv
[2] = fd_str
[1];
1408 kid_argv
[3] = fd_str
[2];
1411 /* exec servlink program */
1412 execv(ConfigFileEntry
.servlink_path
, kid_argv
);
1414 /* We're still here, abort. */
1419 comm_close(server
->localClient
->fd
);
1421 /* close the childs end of the pipes */
1425 s_assert(server
->localClient
);
1426 server
->localClient
->ctrlfd
= ctrl_fds
[0];
1427 server
->localClient
->fd
= data_fds
[0];
1429 if(!comm_set_nb(server
->localClient
->fd
))
1431 report_error(NONB_ERROR_MSG
,
1432 get_server_name(server
, SHOW_IP
),
1433 log_client_name(server
, SHOW_IP
),
1437 if(!comm_set_nb(server
->localClient
->ctrlfd
))
1439 report_error(NONB_ERROR_MSG
,
1440 get_server_name(server
, SHOW_IP
),
1441 log_client_name(server
, SHOW_IP
),
1445 comm_open(server
->localClient
->ctrlfd
, FD_SOCKET
, NULL
);
1446 comm_open(server
->localClient
->fd
, FD_SOCKET
, NULL
);
1448 read_ctrl_packet(server
->localClient
->ctrlfd
, server
);
1449 read_packet(server
->localClient
->fd
, server
);
1455 /* this is ugly, but nicer than repeating
1456 * about 50 close() statements everywhre... */
1465 * New server connection code
1466 * Based upon the stuff floating about in s_bsd.c
1471 * serv_connect() - initiate a server connection
1473 * inputs - pointer to conf
1474 * - pointer to client doing the connet
1478 * This code initiates a connection to a server. It first checks to make
1479 * sure the given server exists. If this is the case, it creates a socket,
1480 * creates a client, saves the socket information in the client, and
1481 * initiates a connection to the server through comm_connect_tcp(). The
1482 * completion of this goes through serv_completed_connection().
1484 * We return 1 if the connection is attempted, since we don't know whether
1485 * it suceeded or not, and 0 if it fails in here somewhere.
1488 serv_connect(struct server_conf
*server_p
, struct Client
*by
)
1490 struct Client
*client_p
;
1491 struct irc_sockaddr_storage myipnum
;
1494 s_assert(server_p
!= NULL
);
1495 if(server_p
== NULL
)
1499 * Make sure this server isn't already connected
1501 if((client_p
= find_server(NULL
, server_p
->name
)))
1503 sendto_realops_snomask(SNO_GENERAL
, L_NETWIDE
,
1504 "Server %s already present from %s",
1505 server_p
->name
, get_server_name(client_p
, SHOW_IP
));
1506 if(by
&& IsPerson(by
) && !MyClient(by
))
1507 sendto_one_notice(by
, ":Server %s already present from %s",
1508 server_p
->name
, get_server_name(client_p
, SHOW_IP
));
1512 /* create a socket for the server connection */
1513 if((fd
= comm_socket(server_p
->aftype
, SOCK_STREAM
, 0, NULL
)) < 0)
1515 /* Eek, failure to create the socket */
1516 report_error("opening stream socket to %s: %s",
1517 server_p
->name
, server_p
->name
, errno
);
1521 /* servernames are always guaranteed under HOSTLEN chars */
1522 comm_note(fd
, "Server: %s", server_p
->name
);
1524 /* Create a local client */
1525 client_p
= make_client(NULL
);
1527 /* Copy in the server, hostname, fd
1528 * The sockhost may be a hostname, this will be corrected later
1531 strlcpy(client_p
->name
, server_p
->name
, sizeof(client_p
->name
));
1532 strlcpy(client_p
->host
, server_p
->host
, sizeof(client_p
->host
));
1533 strlcpy(client_p
->sockhost
, server_p
->host
, sizeof(client_p
->sockhost
));
1534 client_p
->localClient
->fd
= fd
;
1537 * Set up the initial server evilness, ripped straight from
1538 * connect_server(), so don't blame me for it being evil.
1542 if(!comm_set_buffers(client_p
->localClient
->fd
, READBUF_SIZE
))
1544 report_error(SETBUF_ERROR_MSG
,
1545 get_server_name(client_p
, SHOW_IP
),
1546 log_client_name(client_p
, SHOW_IP
),
1551 * Attach config entries to client here rather than in
1552 * serv_connect_callback(). This to avoid null pointer references.
1554 attach_server_conf(client_p
, server_p
);
1557 * at this point we have a connection in progress and C/N lines
1558 * attached to the client, the socket info should be saved in the
1559 * client and it should either be resolved or have a valid address.
1561 * The socket has been connected or connect is in progress.
1563 make_server(client_p
);
1564 if(by
&& IsPerson(by
))
1566 strcpy(client_p
->serv
->by
, by
->name
);
1567 if(client_p
->serv
->user
)
1568 free_user(client_p
->serv
->user
, NULL
);
1569 client_p
->serv
->user
= by
->user
;
1574 strcpy(client_p
->serv
->by
, "AutoConn.");
1575 if(client_p
->serv
->user
)
1576 free_user(client_p
->serv
->user
, NULL
);
1577 client_p
->serv
->user
= NULL
;
1579 client_p
->serv
->up
= me
.name
;
1580 client_p
->serv
->upid
= me
.id
;
1581 SetConnecting(client_p
);
1582 dlinkAddTail(client_p
, &client_p
->node
, &global_client_list
);
1585 ilog(L_SERVER
, "Connecting to %s[%s] port %d (%s)", server_p
->name
, server_p
->host
, server_p
->port
,
1587 server_p
->aftype
== AF_INET6
? "IPv6" :
1589 (server_p
->aftype
== AF_INET
? "IPv4" : "?"));
1591 if(ServerConfVhosted(server_p
))
1593 memcpy(&myipnum
, &server_p
->my_ipnum
, sizeof(myipnum
));
1594 ((struct sockaddr_in
*)&myipnum
)->sin_port
= 0;
1595 myipnum
.ss_family
= server_p
->aftype
;
1598 else if(server_p
->aftype
== AF_INET
&& ServerInfo
.specific_ipv4_vhost
)
1600 memcpy(&myipnum
, &ServerInfo
.ip
, sizeof(myipnum
));
1601 ((struct sockaddr_in
*)&myipnum
)->sin_port
= 0;
1602 myipnum
.ss_family
= AF_INET
;
1603 SET_SS_LEN(myipnum
, sizeof(struct sockaddr_in
));
1607 else if((server_p
->aftype
== AF_INET6
) && ServerInfo
.specific_ipv6_vhost
)
1609 memcpy(&myipnum
, &ServerInfo
.ip6
, sizeof(myipnum
));
1610 ((struct sockaddr_in6
*)&myipnum
)->sin6_port
= 0;
1611 myipnum
.ss_family
= AF_INET6
;
1612 SET_SS_LEN(myipnum
, sizeof(struct sockaddr_in6
));
1617 comm_connect_tcp(client_p
->localClient
->fd
, server_p
->host
,
1618 server_p
->port
, NULL
, 0, serv_connect_callback
,
1619 client_p
, server_p
->aftype
,
1620 ConfigFileEntry
.connect_timeout
);
1624 comm_connect_tcp(client_p
->localClient
->fd
, server_p
->host
,
1625 server_p
->port
, (struct sockaddr
*) &myipnum
,
1626 GET_SS_LEN(myipnum
), serv_connect_callback
, client_p
,
1627 myipnum
.ss_family
, ConfigFileEntry
.connect_timeout
);
1633 * serv_connect_callback() - complete a server connection.
1635 * This routine is called after the server connection attempt has
1636 * completed. If unsucessful, an error is sent to ops and the client
1637 * is closed. If sucessful, it goes through the initialisation/check
1638 * procedures, the capabilities are sent, and the socket is then
1639 * marked for reading.
1642 serv_connect_callback(int fd
, int status
, void *data
)
1644 struct Client
*client_p
= data
;
1645 struct server_conf
*server_p
;
1648 /* First, make sure its a real client! */
1649 s_assert(client_p
!= NULL
);
1650 s_assert(client_p
->localClient
->fd
== fd
);
1652 if(client_p
== NULL
)
1655 /* while we were waiting for the callback, its possible this already
1658 if(find_server(NULL
, client_p
->name
) != NULL
)
1660 exit_client(client_p
, client_p
, &me
, "Server Exists");
1664 /* Next, for backward purposes, record the ip of the server */
1665 memcpy(&client_p
->localClient
->ip
, &fd_table
[fd
].connect
.hostaddr
, sizeof client_p
->localClient
->ip
);
1666 /* Set sockhost properly now -- jilles */
1667 inetntop_sock((struct sockaddr
*)&fd_table
[fd
].connect
.hostaddr
,
1668 client_p
->sockhost
, sizeof client_p
->sockhost
);
1670 /* Check the status */
1671 if(status
!= COMM_OK
)
1673 /* COMM_ERR_TIMEOUT wont have an errno associated with it,
1674 * the others will.. --fl
1676 if(status
== COMM_ERR_TIMEOUT
)
1678 sendto_realops_snomask(SNO_GENERAL
, L_NETWIDE
,
1679 "Error connecting to %s[%s]: %s",
1681 #ifdef HIDE_SERVERS_IPS
1686 comm_errstr(status
));
1687 ilog(L_SERVER
, "Error connecting to %s[%s]: %s",
1688 client_p
->name
, client_p
->sockhost
,
1689 comm_errstr(status
));
1693 errstr
= strerror(comm_get_sockerr(fd
));
1694 sendto_realops_snomask(SNO_GENERAL
, L_NETWIDE
,
1695 "Error connecting to %s[%s]: %s (%s)",
1697 #ifdef HIDE_SERVERS_IPS
1702 comm_errstr(status
), errstr
);
1703 ilog(L_SERVER
, "Error connecting to %s[%s]: %s (%s)",
1704 client_p
->name
, client_p
->sockhost
,
1705 comm_errstr(status
), errstr
);
1708 exit_client(client_p
, client_p
, &me
, comm_errstr(status
));
1712 /* COMM_OK, so continue the connection procedure */
1713 /* Get the C/N lines */
1714 if((server_p
= client_p
->localClient
->att_sconf
) == NULL
)
1716 sendto_realops_snomask(SNO_GENERAL
, L_NETWIDE
, "Lost connect{} block for %s",
1717 get_server_name(client_p
, HIDE_IP
));
1718 exit_client(client_p
, client_p
, &me
, "Lost connect{} block");
1722 /* Next, send the initial handshake */
1723 SetHandshake(client_p
);
1725 /* kludge, if we're not using TS6, dont ever send
1726 * ourselves as being TS6 capable.
1728 if(!EmptyString(server_p
->spasswd
))
1730 if(ServerInfo
.use_ts6
)
1731 sendto_one(client_p
, "PASS %s TS %d :%s",
1732 server_p
->spasswd
, TS_CURRENT
, me
.id
);
1734 sendto_one(client_p
, "PASS %s :TS",
1738 /* pass my info to the new server */
1739 send_capabilities(client_p
, default_server_capabs
1740 | (ServerConfCompressed(server_p
) ? CAP_ZIP_SUPPORTED
: 0)
1741 | (ServerConfTb(server_p
) ? CAP_TB
: 0));
1743 sendto_one(client_p
, "SERVER %s 1 :%s%s",
1745 ConfigServerHide
.hidden
? "(H) " : "", me
.info
);
1748 * If we've been marked dead because a send failed, just exit
1749 * here now and save everyone the trouble of us ever existing.
1751 if(IsAnyDead(client_p
))
1753 sendto_realops_snomask(SNO_GENERAL
, L_NETWIDE
,
1754 "%s went dead during handshake", client_p
->name
);
1755 exit_client(client_p
, client_p
, &me
, "Went dead during handshake");
1759 /* don't move to serv_list yet -- we haven't sent a burst! */
1761 /* If we get here, we're ok, so lets start reading some data */
1762 read_packet(fd
, client_p
);
1765 #ifndef HAVE_SOCKETPAIR
1767 inet_socketpair(int d
, int type
, int protocol
, int sv
[2])
1769 struct sockaddr_in addr1
, addr2
, addr3
;
1770 int addr3_len
= sizeof(addr3
);
1772 int port_no
= 20000;
1774 if(d
!= AF_INET
|| type
!= SOCK_STREAM
|| protocol
)
1776 errno
= EAFNOSUPPORT
;
1779 if(((sv
[0] = socket(AF_INET
, SOCK_STREAM
, 0)) < 0) || ((sv
[1] = socket(AF_INET
, SOCK_STREAM
, 0)) < 0))
1782 addr1
.sin_port
= htons(port_no
);
1783 addr1
.sin_family
= AF_INET
;
1784 addr1
.sin_addr
.s_addr
= htonl(INADDR_LOOPBACK
);
1785 while ((rc
= bind (sv
[0], (struct sockaddr
*) &addr1
, sizeof (addr1
))) < 0 && errno
== EADDRINUSE
)
1786 addr1
.sin_port
= htons(++port_no
);
1791 if(listen(sv
[0], 1) < 0)
1798 addr2
.sin_port
= htons(port_no
);
1799 addr2
.sin_family
= AF_INET
;
1800 addr2
.sin_addr
.s_addr
= htonl(INADDR_LOOPBACK
);
1801 if(connect (sv
[1], (struct sockaddr
*) &addr2
, sizeof (addr2
)) < 0)
1808 if((fd
= accept(sv
[1], (struct sockaddr
*) &addr3
, &addr3_len
)) < 0)