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
24 * $Id: s_serv.c 3233 2007-03-05 17:28:27Z nenolod $
30 #include <openssl/rsa.h>
40 #include "irc_string.h"
41 #include "sprintf_irc.h"
43 #include "ircd_defs.h"
49 #include "s_newconf.h"
57 #include "channel.h" /* chcap_usage_counts stuff... */
64 #define INADDR_NONE ((unsigned int) 0xffffffff)
67 #ifndef HAVE_SOCKETPAIR
68 static int inet_socketpair(int d
, int type
, int protocol
, int sv
[2]);
71 int MaxConnectionCount
= 1;
72 int MaxClientCount
= 1;
73 int refresh_user_links
= 0;
75 static char buf
[BUFSIZE
];
77 static void start_io(struct Client
*server
);
79 static SlinkRplHnd slink_error
;
80 static SlinkRplHnd slink_zipstats
;
82 * list of recognized server capabilities. "TS" is not on the list
83 * because all servers that we talk to already do TS, and the kludged
84 * extra argument to "PASS" takes care of checking that. -orabidoo
86 struct Capability captab
[] = {
94 { "KNOCK", CAP_KNOCK
},
97 { "UNKLN", CAP_UNKLN
},
98 { "CLUSTER", CAP_CLUSTER
},
99 { "ENCAP", CAP_ENCAP
},
100 { "SERVICES", CAP_SERVICE
},
101 { "RSFNC", CAP_RSFNC
},
102 { "SAVE", CAP_SAVE
},
103 { "EUID", CAP_EUID
},
107 struct SlinkRplDef slinkrpltab
[] = {
108 {SLINKRPL_ERROR
, slink_error
, SLINKRPL_FLAG_DATA
},
109 {SLINKRPL_ZIPSTATS
, slink_zipstats
, SLINKRPL_FLAG_DATA
},
113 static int fork_server(struct Client
*client_p
);
115 static CNCB serv_connect_callback
;
118 slink_error(unsigned int rpl
, unsigned int len
, unsigned char *data
, struct Client
*server_p
)
120 char squitreason
[256];
122 s_assert(rpl
== SLINKRPL_ERROR
);
125 data
[len
- 1] = '\0';
127 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "SlinkError for %s: %s", server_p
->name
, data
);
128 snprintf(squitreason
, sizeof squitreason
, "servlink error: %s", data
);
129 exit_client(server_p
, server_p
, &me
, squitreason
);
133 slink_zipstats(unsigned int rpl
, unsigned int len
, unsigned char *data
, struct Client
*server_p
)
135 struct ZipStats zipstats
;
136 u_int32_t in
= 0, in_wire
= 0, out
= 0, out_wire
= 0;
139 s_assert(rpl
== SLINKRPL_ZIPSTATS
);
141 s_assert(IsCapable(server_p
, CAP_ZIP
));
143 /* Yes, it needs to be done this way, no we cannot let the compiler
144 * work with the pointer to the structure. This works around a GCC
145 * bug on SPARC that affects all versions at the time of this writing.
146 * I will feed you to the creatures living in RMS's beard if you do
147 * not leave this as is, without being sure that you are not causing
148 * regression for most of our installed SPARC base.
149 * -jmallett, 04/27/2002
151 memcpy(&zipstats
, &server_p
->localClient
->zipstats
, sizeof(struct ZipStats
));
153 in
|= (data
[i
++] << 24);
154 in
|= (data
[i
++] << 16);
155 in
|= (data
[i
++] << 8);
158 in_wire
|= (data
[i
++] << 24);
159 in_wire
|= (data
[i
++] << 16);
160 in_wire
|= (data
[i
++] << 8);
161 in_wire
|= (data
[i
++]);
163 out
|= (data
[i
++] << 24);
164 out
|= (data
[i
++] << 16);
165 out
|= (data
[i
++] << 8);
168 out_wire
|= (data
[i
++] << 24);
169 out_wire
|= (data
[i
++] << 16);
170 out_wire
|= (data
[i
++] << 8);
171 out_wire
|= (data
[i
++]);
174 zipstats
.inK
+= zipstats
.in
>> 10;
175 zipstats
.in
&= 0x03ff;
177 zipstats
.in_wire
+= in_wire
;
178 zipstats
.inK_wire
+= zipstats
.in_wire
>> 10;
179 zipstats
.in_wire
&= 0x03ff;
182 zipstats
.outK
+= zipstats
.out
>> 10;
183 zipstats
.out
&= 0x03ff;
185 zipstats
.out_wire
+= out_wire
;
186 zipstats
.outK_wire
+= zipstats
.out_wire
>> 10;
187 zipstats
.out_wire
&= 0x03ff;
191 (((double) (zipstats
.inK
- zipstats
.inK_wire
) /
192 (double) zipstats
.inK
) * 100.00);
194 zipstats
.in_ratio
= 0;
196 if(zipstats
.outK
> 0)
198 (((double) (zipstats
.outK
- zipstats
.outK_wire
) /
199 (double) zipstats
.outK
) * 100.00);
201 zipstats
.out_ratio
= 0;
203 memcpy(&server_p
->localClient
->zipstats
, &zipstats
, sizeof(struct ZipStats
));
207 collect_zipstats(void *unused
)
210 struct Client
*target_p
;
212 DLINK_FOREACH(ptr
, serv_list
.head
)
214 target_p
= ptr
->data
;
215 if(IsCapable(target_p
, CAP_ZIP
))
217 /* only bother if we haven't already got something queued... */
218 if(!target_p
->localClient
->slinkq
)
220 target_p
->localClient
->slinkq
= MyMalloc(1); /* sigh.. */
221 target_p
->localClient
->slinkq
[0] = SLINKCMD_ZIPSTATS
;
222 target_p
->localClient
->slinkq_ofs
= 0;
223 target_p
->localClient
->slinkq_len
= 1;
224 send_queued_slink_write(target_p
->localClient
->ctrlfd
, target_p
);
231 * hunt_server - Do the basic thing in delivering the message (command)
232 * across the relays to the specific server (server) for
235 * Note: The command is a format string and *MUST* be
236 * of prefixed style (e.g. ":%s COMMAND %s ...").
237 * Command can have only max 8 parameters.
239 * server parv[server] is the parameter identifying the
243 * parv[server] is replaced with the pointer to the
244 * real servername from the matched client (I'm lazy
247 * returns: (see #defines)
250 hunt_server(struct Client
*client_p
, struct Client
*source_p
,
251 const char *command
, int server
, int parc
, const char *parv
[])
253 struct Client
*target_p
;
260 * Assume it's me, if no server
262 if(parc
<= server
|| EmptyString(parv
[server
]) ||
263 match(parv
[server
], me
.name
) || (strcmp(parv
[server
], me
.id
) == 0))
264 return (HUNTED_ISME
);
266 new = LOCAL_COPY(parv
[server
]);
269 * These are to pickup matches that would cause the following
270 * message to go in the wrong direction while doing quick fast
271 * non-matching lookups.
273 if(MyClient(source_p
))
274 target_p
= find_named_client(new);
276 target_p
= find_client(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_ALL
,
426 "Connection to %s[%s] activated.",
427 server_p
->name
, server_p
->host
);
429 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
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
);
706 if(ConfigFileEntry
.burst_away
&& !EmptyString(target_p
->user
->away
))
707 sendto_one(client_p
, ":%s AWAY :%s",
708 target_p
->name
, target_p
->user
->away
);
710 hclientinfo
.target
= target_p
;
711 call_hook(h_burst_client
, &hclientinfo
);
714 DLINK_FOREACH(ptr
, global_channel_list
.head
)
718 if(*chptr
->chname
!= '#')
721 cur_len
= mlen
= ircsprintf(buf
, ":%s SJOIN %ld %s %s :", me
.name
,
722 (long) chptr
->channelts
, chptr
->chname
,
723 channel_modes(chptr
, client_p
));
727 DLINK_FOREACH(uptr
, chptr
->members
.head
)
731 tlen
= strlen(msptr
->client_p
->name
) + 1;
737 if(cur_len
+ tlen
>= BUFSIZE
- 3)
741 sendto_one(client_p
, "%s", buf
);
746 ircsprintf(t
, "%s%s ", find_channel_status(msptr
, 1),
747 msptr
->client_p
->name
);
753 if (dlink_list_length(&chptr
->members
) > 0)
755 /* remove trailing space */
759 sendto_one(client_p
, "%s", buf
);
761 burst_modes_TS5(client_p
, chptr
->chname
, &chptr
->banlist
, 'b');
763 if(IsCapable(client_p
, CAP_EX
))
764 burst_modes_TS5(client_p
, chptr
->chname
, &chptr
->exceptlist
, 'e');
766 if(IsCapable(client_p
, CAP_IE
))
767 burst_modes_TS5(client_p
, chptr
->chname
, &chptr
->invexlist
, 'I');
769 burst_modes_TS5(client_p
, chptr
->chname
, &chptr
->quietlist
, 'q');
771 if(IsCapable(client_p
, CAP_TB
) && chptr
->topic
!= NULL
)
772 sendto_one(client_p
, ":%s TB %s %ld %s%s:%s",
773 me
.name
, chptr
->chname
, (long) chptr
->topic_time
,
774 ConfigChannel
.burst_topicwho
? chptr
->topic_info
: "",
775 ConfigChannel
.burst_topicwho
? " " : "",
778 hchaninfo
.chptr
= chptr
;
779 call_hook(h_burst_channel
, &hchaninfo
);
782 hclientinfo
.target
= NULL
;
783 call_hook(h_burst_finished
, &hclientinfo
);
789 * inputs - client (server) to send nick towards
790 * - client to send nick for
792 * side effects - NICK message is sent towards given client_p
795 burst_TS6(struct Client
*client_p
)
797 static char ubuf
[12];
798 struct Client
*target_p
;
799 struct Channel
*chptr
;
800 struct membership
*msptr
;
801 hook_data_client hclientinfo
;
802 hook_data_channel hchaninfo
;
809 hclientinfo
.client
= hchaninfo
.client
= client_p
;
811 DLINK_FOREACH(ptr
, global_client_list
.head
)
813 target_p
= ptr
->data
;
815 if(!IsPerson(target_p
))
818 send_umode(NULL
, target_p
, 0, 0, ubuf
);
825 if(has_id(target_p
) && IsCapable(client_p
, CAP_EUID
))
826 sendto_one(client_p
, ":%s EUID %s %d %ld %s %s %s %s %s %s %s :%s",
827 target_p
->servptr
->id
, target_p
->name
,
828 target_p
->hopcount
+ 1,
829 (long) target_p
->tsinfo
, ubuf
,
830 target_p
->username
, target_p
->host
,
831 IsIPSpoof(target_p
) ? "0" : target_p
->sockhost
,
833 IsDynSpoof(target_p
) ? target_p
->orighost
: "*",
834 EmptyString(target_p
->user
->suser
) ? "*" : target_p
->user
->suser
,
836 else if(has_id(target_p
))
837 sendto_one(client_p
, ":%s UID %s %d %ld %s %s %s %s %s :%s",
838 target_p
->servptr
->id
, target_p
->name
,
839 target_p
->hopcount
+ 1,
840 (long) target_p
->tsinfo
, ubuf
,
841 target_p
->username
, target_p
->host
,
842 IsIPSpoof(target_p
) ? "0" : target_p
->sockhost
,
843 target_p
->id
, target_p
->info
);
845 sendto_one(client_p
, "NICK %s %d %ld %s %s %s %s :%s",
847 target_p
->hopcount
+ 1,
848 (long) target_p
->tsinfo
,
850 target_p
->username
, target_p
->host
,
851 target_p
->user
->server
, target_p
->info
);
853 if(!has_id(target_p
) || !IsCapable(client_p
, CAP_EUID
))
855 if(IsDynSpoof(target_p
))
856 sendto_one(client_p
, ":%s ENCAP * REALHOST %s",
857 use_id(target_p
), target_p
->orighost
);
858 if(!EmptyString(target_p
->user
->suser
))
859 sendto_one(client_p
, ":%s ENCAP * LOGIN %s",
860 use_id(target_p
), target_p
->user
->suser
);
863 if(ConfigFileEntry
.burst_away
&& !EmptyString(target_p
->user
->away
))
864 sendto_one(client_p
, ":%s AWAY :%s",
866 target_p
->user
->away
);
868 hclientinfo
.target
= target_p
;
869 call_hook(h_burst_client
, &hclientinfo
);
872 DLINK_FOREACH(ptr
, global_channel_list
.head
)
876 if(*chptr
->chname
!= '#')
879 cur_len
= mlen
= ircsprintf(buf
, ":%s SJOIN %ld %s %s :", me
.id
,
880 (long) chptr
->channelts
, chptr
->chname
,
881 channel_modes(chptr
, client_p
));
885 DLINK_FOREACH(uptr
, chptr
->members
.head
)
889 tlen
= strlen(use_id(msptr
->client_p
)) + 1;
895 if(cur_len
+ tlen
>= BUFSIZE
- 3)
898 sendto_one(client_p
, "%s", buf
);
903 ircsprintf(t
, "%s%s ", find_channel_status(msptr
, 1),
904 use_id(msptr
->client_p
));
910 if (dlink_list_length(&chptr
->members
) > 0)
912 /* remove trailing space */
915 sendto_one(client_p
, "%s", buf
);
917 if(dlink_list_length(&chptr
->banlist
) > 0)
918 burst_modes_TS6(client_p
, chptr
, &chptr
->banlist
, 'b');
920 if(IsCapable(client_p
, CAP_EX
) &&
921 dlink_list_length(&chptr
->exceptlist
) > 0)
922 burst_modes_TS6(client_p
, chptr
, &chptr
->exceptlist
, 'e');
924 if(IsCapable(client_p
, CAP_IE
) &&
925 dlink_list_length(&chptr
->invexlist
) > 0)
926 burst_modes_TS6(client_p
, chptr
, &chptr
->invexlist
, 'I');
928 if(dlink_list_length(&chptr
->quietlist
) > 0)
929 burst_modes_TS6(client_p
, chptr
, &chptr
->quietlist
, 'q');
931 if(IsCapable(client_p
, CAP_TB
) && chptr
->topic
!= NULL
)
932 sendto_one(client_p
, ":%s TB %s %ld %s%s:%s",
933 me
.id
, chptr
->chname
, (long) chptr
->topic_time
,
934 ConfigChannel
.burst_topicwho
? chptr
->topic_info
: "",
935 ConfigChannel
.burst_topicwho
? " " : "",
938 hchaninfo
.chptr
= chptr
;
939 call_hook(h_burst_channel
, &hchaninfo
);
942 hclientinfo
.target
= NULL
;
943 call_hook(h_burst_finished
, &hclientinfo
);
947 * show_capabilities - show current server capabilities
949 * inputs - pointer to an struct Client
950 * output - pointer to static string
951 * side effects - build up string representing capabilities of server listed
954 show_capabilities(struct Client
*target_p
)
956 static char msgbuf
[BUFSIZE
];
957 struct Capability
*cap
;
962 tl
= ircsprintf(msgbuf
, "TS ");
965 if(!IsServer(target_p
) || !target_p
->serv
->caps
) /* short circuit if no caps */
971 for (cap
= captab
; cap
->cap
; ++cap
)
973 if(cap
->cap
& target_p
->serv
->caps
)
975 tl
= ircsprintf(t
, "%s ", cap
->name
);
989 * inputs - pointer to a struct Client
994 server_estab(struct Client
*client_p
)
996 struct Client
*target_p
;
997 struct server_conf
*server_p
;
998 hook_data_client hdata
;
1002 s_assert(NULL
!= client_p
);
1003 if(client_p
== NULL
)
1005 ClearAccess(client_p
);
1007 host
= client_p
->name
;
1009 if((server_p
= client_p
->localClient
->att_sconf
) == NULL
)
1011 /* This shouldn't happen, better tell the ops... -A1kmm */
1012 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
1013 "Warning: Lost connect{} block for server %s!", host
);
1014 return exit_client(client_p
, client_p
, client_p
, "Lost connect{} block!");
1017 /* We shouldn't have to check this, it should already done before
1018 * server_estab is called. -A1kmm
1020 if(client_p
->localClient
->passwd
)
1022 memset(client_p
->localClient
->passwd
, 0, strlen(client_p
->localClient
->passwd
));
1023 MyFree(client_p
->localClient
->passwd
);
1024 client_p
->localClient
->passwd
= NULL
;
1027 /* Its got identd , since its a server */
1030 /* If there is something in the serv_list, it might be this
1031 * connecting server..
1033 if(!ServerInfo
.hub
&& serv_list
.head
)
1035 if(client_p
!= serv_list
.head
->data
|| serv_list
.head
->next
)
1037 ServerStats
->is_ref
++;
1038 sendto_one(client_p
, "ERROR :I'm a leaf not a hub");
1039 return exit_client(client_p
, client_p
, client_p
, "I'm a leaf");
1043 if(IsUnknown(client_p
))
1046 * jdc -- 1. Use EmptyString(), not [0] index reference.
1047 * 2. Check ->spasswd, not ->passwd.
1049 if(!EmptyString(server_p
->spasswd
))
1051 /* kludge, if we're not using TS6, dont ever send
1052 * ourselves as being TS6 capable.
1054 if(ServerInfo
.use_ts6
)
1055 sendto_one(client_p
, "PASS %s TS %d :%s",
1056 server_p
->spasswd
, TS_CURRENT
, me
.id
);
1058 sendto_one(client_p
, "PASS %s :TS",
1062 /* pass info to new server */
1063 send_capabilities(client_p
, default_server_capabs
1064 | (ServerConfCompressed(server_p
) ? CAP_ZIP_SUPPORTED
: 0)
1065 | (ServerConfTb(server_p
) ? CAP_TB
: 0));
1067 sendto_one(client_p
, "SERVER %s 1 :%s%s",
1069 ConfigServerHide
.hidden
? "(H) " : "",
1070 (me
.info
[0]) ? (me
.info
) : "IRCers United");
1073 if(!comm_set_buffers(client_p
->localClient
->fd
, READBUF_SIZE
))
1074 report_error(SETBUF_ERROR_MSG
,
1075 get_server_name(client_p
, SHOW_IP
),
1076 log_client_name(client_p
, SHOW_IP
), errno
);
1078 /* Hand the server off to servlink now */
1079 if(IsCapable(client_p
, CAP_ZIP
))
1081 if(fork_server(client_p
) < 0)
1083 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
1084 "Warning: fork failed for server %s -- check servlink_path (%s)",
1085 get_server_name(client_p
, HIDE_IP
),
1086 ConfigFileEntry
.servlink_path
);
1087 return exit_client(client_p
, client_p
, client_p
, "Fork failed");
1090 SetServlink(client_p
);
1093 sendto_one(client_p
, "SVINFO %d %d 0 :%ld", TS_CURRENT
, TS_MIN
, CurrentTime
);
1095 client_p
->servptr
= &me
;
1097 if(IsAnyDead(client_p
))
1098 return CLIENT_EXITED
;
1100 SetServer(client_p
);
1102 /* Update the capability combination usage counts */
1103 set_chcap_usage_counts(client_p
);
1105 dlinkAdd(client_p
, &client_p
->lnode
, &me
.serv
->servers
);
1106 dlinkMoveNode(&client_p
->localClient
->tnode
, &unknown_list
, &serv_list
);
1107 dlinkAddTailAlloc(client_p
, &global_serv_list
);
1109 if(has_id(client_p
))
1110 add_to_id_hash(client_p
->id
, client_p
);
1112 add_to_client_hash(client_p
->name
, client_p
);
1113 /* doesnt duplicate client_p->serv if allocated this struct already */
1114 make_server(client_p
);
1115 client_p
->serv
->up
= me
.name
;
1116 client_p
->serv
->upid
= me
.id
;
1118 client_p
->serv
->caps
= client_p
->localClient
->caps
;
1120 if(client_p
->localClient
->fullcaps
)
1122 DupString(client_p
->serv
->fullcaps
, client_p
->localClient
->fullcaps
);
1123 MyFree(client_p
->localClient
->fullcaps
);
1124 client_p
->localClient
->fullcaps
= NULL
;
1127 /* add it to scache */
1128 find_or_add(client_p
->name
);
1129 client_p
->localClient
->firsttime
= CurrentTime
;
1130 /* fixing eob timings.. -gnp */
1132 /* Show the real host/IP to admins */
1133 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1134 "Link with %s established: (%s) link",
1135 get_server_name(client_p
, SHOW_IP
),
1136 show_capabilities(client_p
));
1138 ilog(L_SERVER
, "Link with %s established: (%s) link",
1139 log_client_name(client_p
, SHOW_IP
), show_capabilities(client_p
));
1142 hdata
.target
= client_p
;
1143 call_hook(h_server_introduced
, &hdata
);
1145 if(HasServlink(client_p
))
1147 /* we won't overflow FD_DESC_SZ here, as it can hold
1148 * client_p->name + 64
1150 comm_note(client_p
->localClient
->fd
, "slink data: %s", client_p
->name
);
1151 comm_note(client_p
->localClient
->ctrlfd
, "slink ctrl: %s", client_p
->name
);
1154 comm_note(client_p
->localClient
->fd
, "Server: %s", client_p
->name
);
1157 ** Old sendto_serv_but_one() call removed because we now
1158 ** need to send different names to different servers
1159 ** (domain name matching) Send new server to other servers.
1161 DLINK_FOREACH(ptr
, serv_list
.head
)
1163 target_p
= ptr
->data
;
1165 if(target_p
== client_p
)
1168 if(has_id(target_p
) && has_id(client_p
))
1170 sendto_one(target_p
, ":%s SID %s 2 %s :%s%s",
1171 me
.id
, client_p
->name
, client_p
->id
,
1172 IsHidden(client_p
) ? "(H) " : "", client_p
->info
);
1174 if(IsCapable(target_p
, CAP_ENCAP
) &&
1175 !EmptyString(client_p
->serv
->fullcaps
))
1176 sendto_one(target_p
, ":%s ENCAP * GCAP :%s",
1177 client_p
->id
, client_p
->serv
->fullcaps
);
1181 sendto_one(target_p
, ":%s SERVER %s 2 :%s%s",
1182 me
.name
, client_p
->name
,
1183 IsHidden(client_p
) ? "(H) " : "", client_p
->info
);
1185 if(IsCapable(target_p
, CAP_ENCAP
) &&
1186 !EmptyString(client_p
->serv
->fullcaps
))
1187 sendto_one(target_p
, ":%s ENCAP * GCAP :%s",
1188 client_p
->name
, client_p
->serv
->fullcaps
);
1193 ** Pass on my client information to the new server
1195 ** First, pass only servers (idea is that if the link gets
1196 ** cancelled beacause the server was already there,
1197 ** there are no NICK's to be cancelled...). Of course,
1198 ** if cancellation occurs, all this info is sent anyway,
1199 ** and I guess the link dies when a read is attempted...? --msa
1201 ** Note: Link cancellation to occur at this point means
1202 ** that at least two servers from my fragment are building
1203 ** up connection this other fragment at the same time, it's
1204 ** a race condition, not the normal way of operation...
1206 ** ALSO NOTE: using the get_client_name for server names--
1207 ** see previous *WARNING*!!! (Also, original inpath
1210 DLINK_FOREACH(ptr
, global_serv_list
.head
)
1212 target_p
= ptr
->data
;
1214 /* target_p->from == target_p for target_p == client_p */
1215 if(IsMe(target_p
) || target_p
->from
== client_p
)
1218 /* presumption, if target has an id, so does its uplink */
1219 if(has_id(client_p
) && has_id(target_p
))
1220 sendto_one(client_p
, ":%s SID %s %d %s :%s%s",
1221 target_p
->serv
->upid
, target_p
->name
,
1222 target_p
->hopcount
+ 1, target_p
->id
,
1223 IsHidden(target_p
) ? "(H) " : "", target_p
->info
);
1225 sendto_one(client_p
, ":%s SERVER %s %d :%s%s",
1227 target_p
->name
, target_p
->hopcount
+ 1,
1228 IsHidden(target_p
) ? "(H) " : "", target_p
->info
);
1230 if(IsCapable(client_p
, CAP_ENCAP
) &&
1231 !EmptyString(target_p
->serv
->fullcaps
))
1232 sendto_one(client_p
, ":%s ENCAP * GCAP :%s",
1233 get_id(target_p
, client_p
),
1234 target_p
->serv
->fullcaps
);
1237 if(has_id(client_p
))
1238 burst_TS6(client_p
);
1240 burst_TS5(client_p
);
1242 /* Always send a PING after connect burst is done */
1243 sendto_one(client_p
, "PING :%s", get_id(&me
, client_p
));
1245 free_pre_client(client_p
);
1251 start_io(struct Client
*server
)
1253 unsigned char *iobuf
;
1258 iobuf
= MyMalloc(256); /* XXX: This seems arbitrary. Perhaps make it IRCD_BUFSIZE? --nenolod */
1260 if(IsCapable(server
, CAP_ZIP
))
1263 iobuf
[c
++] = SLINKCMD_SET_ZIP_OUT_LEVEL
;
1264 iobuf
[c
++] = 0; /* | */
1265 iobuf
[c
++] = 1; /* \ len is 1 */
1266 iobuf
[c
++] = ConfigFileEntry
.compression_level
;
1267 iobuf
[c
++] = SLINKCMD_START_ZIP_IN
;
1268 iobuf
[c
++] = SLINKCMD_START_ZIP_OUT
;
1271 while (MyConnect(server
))
1275 iobuf
= MyRealloc(iobuf
, (c
+ READBUF_SIZE
+ 64));
1277 /* store data in c+3 to allow for SLINKCMD_INJECT_RECVQ and len u16 */
1278 linelen
= linebuf_get(&server
->localClient
->buf_recvq
, (char *) (iobuf
+ c
+ 3), READBUF_SIZE
, LINEBUF_PARTIAL
, LINEBUF_RAW
); /* include partial lines */
1282 iobuf
[c
++] = SLINKCMD_INJECT_RECVQ
;
1283 iobuf
[c
++] = (linelen
>> 8);
1284 iobuf
[c
++] = (linelen
& 0xff);
1291 while (MyConnect(server
))
1295 iobuf
= MyRealloc(iobuf
, (c
+ BUF_DATA_SIZE
+ 64));
1297 /* store data in c+3 to allow for SLINKCMD_INJECT_RECVQ and len u16 */
1298 linelen
= linebuf_get(&server
->localClient
->buf_sendq
,
1299 (char *) (iobuf
+ c
+ 3), READBUF_SIZE
,
1300 LINEBUF_PARTIAL
, LINEBUF_PARSED
); /* include partial lines */
1304 iobuf
[c
++] = SLINKCMD_INJECT_SENDQ
;
1305 iobuf
[c
++] = (linelen
>> 8);
1306 iobuf
[c
++] = (linelen
& 0xff);
1314 iobuf
[c
++] = SLINKCMD_INIT
;
1316 server
->localClient
->slinkq
= iobuf
;
1317 server
->localClient
->slinkq_ofs
= 0;
1318 server
->localClient
->slinkq_len
= c
;
1320 /* schedule a write */
1321 send_queued_slink_write(server
->localClient
->ctrlfd
, server
);
1327 * inputs - struct Client *server
1328 * output - success: 0 / failure: -1
1329 * side effect - fork, and exec SERVLINK to handle this connection
1332 fork_server(struct Client
*server
)
1341 char slink
[] = "-slink";
1345 #ifdef HAVE_SOCKETPAIR
1346 if(socketpair(AF_UNIX
, SOCK_STREAM
, 0, ctrl_fds
) < 0)
1348 if(inet_socketpair(AF_INET
,SOCK_STREAM
, 0, ctrl_fds
) < 0)
1355 #ifdef HAVE_SOCKETPAIR
1356 if(socketpair(AF_UNIX
, SOCK_STREAM
, 0, data_fds
) < 0)
1358 if(inet_socketpair(AF_INET
,SOCK_STREAM
, 0, data_fds
) < 0)
1364 if((ret
= vfork()) < 0)
1366 if((ret
= fork()) < 0)
1371 /* set our fds as non blocking and close everything else */
1372 for (i
= 0; i
< HARD_FDLIMIT
; i
++)
1376 if((i
== ctrl_fds
[1]) || (i
== data_fds
[1]) || (i
== server
->localClient
->fd
))
1383 if(i
> 2) /* don't close std* */
1389 ircsnprintf(fd_str
[0], sizeof(fd_str
[0]), "%d", ctrl_fds
[1]);
1390 ircsnprintf(fd_str
[1], sizeof(fd_str
[1]), "%d", data_fds
[1]);
1391 ircsnprintf(fd_str
[2], sizeof(fd_str
[2]), "%d", server
->localClient
->fd
);
1392 kid_argv
[0] = slink
;
1393 kid_argv
[1] = fd_str
[0];
1394 kid_argv
[2] = fd_str
[1];
1395 kid_argv
[3] = fd_str
[2];
1398 /* exec servlink program */
1399 execv(ConfigFileEntry
.servlink_path
, kid_argv
);
1401 /* We're still here, abort. */
1406 comm_close(server
->localClient
->fd
);
1408 /* close the childs end of the pipes */
1412 s_assert(server
->localClient
);
1413 server
->localClient
->ctrlfd
= ctrl_fds
[0];
1414 server
->localClient
->fd
= data_fds
[0];
1416 if(!comm_set_nb(server
->localClient
->fd
))
1418 report_error(NONB_ERROR_MSG
,
1419 get_server_name(server
, SHOW_IP
),
1420 log_client_name(server
, SHOW_IP
),
1424 if(!comm_set_nb(server
->localClient
->ctrlfd
))
1426 report_error(NONB_ERROR_MSG
,
1427 get_server_name(server
, SHOW_IP
),
1428 log_client_name(server
, SHOW_IP
),
1432 comm_open(server
->localClient
->ctrlfd
, FD_SOCKET
, NULL
);
1433 comm_open(server
->localClient
->fd
, FD_SOCKET
, NULL
);
1435 read_ctrl_packet(server
->localClient
->ctrlfd
, server
);
1436 read_packet(server
->localClient
->fd
, server
);
1442 /* this is ugly, but nicer than repeating
1443 * about 50 close() statements everywhre... */
1452 * New server connection code
1453 * Based upon the stuff floating about in s_bsd.c
1458 * serv_connect() - initiate a server connection
1460 * inputs - pointer to conf
1461 * - pointer to client doing the connet
1465 * This code initiates a connection to a server. It first checks to make
1466 * sure the given server exists. If this is the case, it creates a socket,
1467 * creates a client, saves the socket information in the client, and
1468 * initiates a connection to the server through comm_connect_tcp(). The
1469 * completion of this goes through serv_completed_connection().
1471 * We return 1 if the connection is attempted, since we don't know whether
1472 * it suceeded or not, and 0 if it fails in here somewhere.
1475 serv_connect(struct server_conf
*server_p
, struct Client
*by
)
1477 struct Client
*client_p
;
1478 struct irc_sockaddr_storage myipnum
;
1481 s_assert(server_p
!= NULL
);
1482 if(server_p
== NULL
)
1486 * Make sure this server isn't already connected
1488 if((client_p
= find_server(NULL
, server_p
->name
)))
1490 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1491 "Server %s already present from %s",
1492 server_p
->name
, get_server_name(client_p
, SHOW_IP
));
1493 if(by
&& IsPerson(by
) && !MyClient(by
))
1494 sendto_one_notice(by
, ":Server %s already present from %s",
1495 server_p
->name
, get_server_name(client_p
, SHOW_IP
));
1499 /* create a socket for the server connection */
1500 if((fd
= comm_socket(server_p
->aftype
, SOCK_STREAM
, 0, NULL
)) < 0)
1502 /* Eek, failure to create the socket */
1503 report_error("opening stream socket to %s: %s",
1504 server_p
->name
, server_p
->name
, errno
);
1508 /* servernames are always guaranteed under HOSTLEN chars */
1509 comm_note(fd
, "Server: %s", server_p
->name
);
1511 /* Create a local client */
1512 client_p
= make_client(NULL
);
1514 /* Copy in the server, hostname, fd
1515 * The sockhost may be a hostname, this will be corrected later
1518 strlcpy(client_p
->name
, server_p
->name
, sizeof(client_p
->name
));
1519 strlcpy(client_p
->host
, server_p
->host
, sizeof(client_p
->host
));
1520 strlcpy(client_p
->sockhost
, server_p
->host
, sizeof(client_p
->sockhost
));
1521 client_p
->localClient
->fd
= fd
;
1524 * Set up the initial server evilness, ripped straight from
1525 * connect_server(), so don't blame me for it being evil.
1529 if(!comm_set_buffers(client_p
->localClient
->fd
, READBUF_SIZE
))
1531 report_error(SETBUF_ERROR_MSG
,
1532 get_server_name(client_p
, SHOW_IP
),
1533 log_client_name(client_p
, SHOW_IP
),
1538 * Attach config entries to client here rather than in
1539 * serv_connect_callback(). This to avoid null pointer references.
1541 attach_server_conf(client_p
, server_p
);
1544 * at this point we have a connection in progress and C/N lines
1545 * attached to the client, the socket info should be saved in the
1546 * client and it should either be resolved or have a valid address.
1548 * The socket has been connected or connect is in progress.
1550 make_server(client_p
);
1551 if(by
&& IsPerson(by
))
1553 strcpy(client_p
->serv
->by
, by
->name
);
1554 if(client_p
->serv
->user
)
1555 free_user(client_p
->serv
->user
, NULL
);
1556 client_p
->serv
->user
= by
->user
;
1561 strcpy(client_p
->serv
->by
, "AutoConn.");
1562 if(client_p
->serv
->user
)
1563 free_user(client_p
->serv
->user
, NULL
);
1564 client_p
->serv
->user
= NULL
;
1566 client_p
->serv
->up
= me
.name
;
1567 client_p
->serv
->upid
= me
.id
;
1568 SetConnecting(client_p
);
1569 dlinkAddTail(client_p
, &client_p
->node
, &global_client_list
);
1572 ilog(L_SERVER
, "Connecting to %s[%s] port %d (%s)", server_p
->name
, server_p
->host
, server_p
->port
,
1574 server_p
->aftype
== AF_INET6
? "IPv6" :
1576 (server_p
->aftype
== AF_INET
? "IPv4" : "?"));
1578 if(ServerConfVhosted(server_p
))
1580 memcpy(&myipnum
, &server_p
->my_ipnum
, sizeof(myipnum
));
1581 ((struct sockaddr_in
*)&myipnum
)->sin_port
= 0;
1582 myipnum
.ss_family
= server_p
->aftype
;
1585 else if(server_p
->aftype
== AF_INET
&& ServerInfo
.specific_ipv4_vhost
)
1587 memcpy(&myipnum
, &ServerInfo
.ip
, sizeof(myipnum
));
1588 ((struct sockaddr_in
*)&myipnum
)->sin_port
= 0;
1589 myipnum
.ss_family
= AF_INET
;
1590 SET_SS_LEN(myipnum
, sizeof(struct sockaddr_in
));
1594 else if((server_p
->aftype
== AF_INET6
) && ServerInfo
.specific_ipv6_vhost
)
1596 memcpy(&myipnum
, &ServerInfo
.ip6
, sizeof(myipnum
));
1597 ((struct sockaddr_in6
*)&myipnum
)->sin6_port
= 0;
1598 myipnum
.ss_family
= AF_INET6
;
1599 SET_SS_LEN(myipnum
, sizeof(struct sockaddr_in6
));
1604 comm_connect_tcp(client_p
->localClient
->fd
, server_p
->host
,
1605 server_p
->port
, NULL
, 0, serv_connect_callback
,
1606 client_p
, server_p
->aftype
,
1607 ConfigFileEntry
.connect_timeout
);
1611 comm_connect_tcp(client_p
->localClient
->fd
, server_p
->host
,
1612 server_p
->port
, (struct sockaddr
*) &myipnum
,
1613 GET_SS_LEN(myipnum
), serv_connect_callback
, client_p
,
1614 myipnum
.ss_family
, ConfigFileEntry
.connect_timeout
);
1620 * serv_connect_callback() - complete a server connection.
1622 * This routine is called after the server connection attempt has
1623 * completed. If unsucessful, an error is sent to ops and the client
1624 * is closed. If sucessful, it goes through the initialisation/check
1625 * procedures, the capabilities are sent, and the socket is then
1626 * marked for reading.
1629 serv_connect_callback(int fd
, int status
, void *data
)
1631 struct Client
*client_p
= data
;
1632 struct server_conf
*server_p
;
1634 fde_t
*F
= comm_locate_fd(fd
);
1636 /* First, make sure its a real client! */
1637 s_assert(client_p
!= NULL
);
1638 s_assert(client_p
->localClient
->fd
== fd
);
1640 if(client_p
== NULL
)
1643 /* while we were waiting for the callback, its possible this already
1646 if(find_server(NULL
, client_p
->name
) != NULL
)
1648 exit_client(client_p
, client_p
, &me
, "Server Exists");
1652 /* Next, for backward purposes, record the ip of the server */
1653 memcpy(&client_p
->localClient
->ip
, &F
->connect
.hostaddr
, sizeof client_p
->localClient
->ip
);
1654 /* Set sockhost properly now -- jilles */
1655 inetntop_sock((struct sockaddr
*)&F
->connect
.hostaddr
,
1656 client_p
->sockhost
, sizeof client_p
->sockhost
);
1658 /* Check the status */
1659 if(status
!= COMM_OK
)
1661 /* COMM_ERR_TIMEOUT wont have an errno associated with it,
1662 * the others will.. --fl
1664 if(status
== COMM_ERR_TIMEOUT
)
1666 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
1667 "Error connecting to %s[%s]: %s",
1669 #ifdef HIDE_SERVERS_IPS
1674 comm_errstr(status
));
1675 ilog(L_SERVER
, "Error connecting to %s[%s]: %s",
1676 client_p
->name
, client_p
->sockhost
,
1677 comm_errstr(status
));
1681 errstr
= strerror(comm_get_sockerr(fd
));
1682 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
1683 "Error connecting to %s[%s]: %s (%s)",
1685 #ifdef HIDE_SERVERS_IPS
1690 comm_errstr(status
), errstr
);
1691 ilog(L_SERVER
, "Error connecting to %s[%s]: %s (%s)",
1692 client_p
->name
, client_p
->sockhost
,
1693 comm_errstr(status
), errstr
);
1696 exit_client(client_p
, client_p
, &me
, comm_errstr(status
));
1700 /* COMM_OK, so continue the connection procedure */
1701 /* Get the C/N lines */
1702 if((server_p
= client_p
->localClient
->att_sconf
) == NULL
)
1704 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
, "Lost connect{} block for %s",
1705 get_server_name(client_p
, HIDE_IP
));
1706 exit_client(client_p
, client_p
, &me
, "Lost connect{} block");
1710 /* Next, send the initial handshake */
1711 SetHandshake(client_p
);
1713 /* kludge, if we're not using TS6, dont ever send
1714 * ourselves as being TS6 capable.
1716 if(!EmptyString(server_p
->spasswd
))
1718 if(ServerInfo
.use_ts6
)
1719 sendto_one(client_p
, "PASS %s TS %d :%s",
1720 server_p
->spasswd
, TS_CURRENT
, me
.id
);
1722 sendto_one(client_p
, "PASS %s :TS",
1726 /* pass my info to the new server */
1727 send_capabilities(client_p
, default_server_capabs
1728 | (ServerConfCompressed(server_p
) ? CAP_ZIP_SUPPORTED
: 0)
1729 | (ServerConfTb(server_p
) ? CAP_TB
: 0));
1731 sendto_one(client_p
, "SERVER %s 1 :%s%s",
1733 ConfigServerHide
.hidden
? "(H) " : "", me
.info
);
1736 * If we've been marked dead because a send failed, just exit
1737 * here now and save everyone the trouble of us ever existing.
1739 if(IsAnyDead(client_p
))
1741 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
1742 "%s went dead during handshake", client_p
->name
);
1743 exit_client(client_p
, client_p
, &me
, "Went dead during handshake");
1747 /* don't move to serv_list yet -- we haven't sent a burst! */
1749 /* If we get here, we're ok, so lets start reading some data */
1750 read_packet(fd
, client_p
);
1753 #ifndef HAVE_SOCKETPAIR
1755 inet_socketpair(int d
, int type
, int protocol
, int sv
[2])
1757 struct sockaddr_in addr1
, addr2
, addr3
;
1758 int addr3_len
= sizeof(addr3
);
1760 int port_no
= 20000;
1762 if(d
!= AF_INET
|| type
!= SOCK_STREAM
|| protocol
)
1764 errno
= EAFNOSUPPORT
;
1767 if(((sv
[0] = socket(AF_INET
, SOCK_STREAM
, 0)) < 0) || ((sv
[1] = socket(AF_INET
, SOCK_STREAM
, 0)) < 0))
1770 addr1
.sin_port
= htons(port_no
);
1771 addr1
.sin_family
= AF_INET
;
1772 addr1
.sin_addr
.s_addr
= htonl(INADDR_LOOPBACK
);
1773 while ((rc
= bind (sv
[0], (struct sockaddr
*) &addr1
, sizeof (addr1
))) < 0 && errno
== EADDRINUSE
)
1774 addr1
.sin_port
= htons(++port_no
);
1779 if(listen(sv
[0], 1) < 0)
1786 addr2
.sin_port
= htons(port_no
);
1787 addr2
.sin_family
= AF_INET
;
1788 addr2
.sin_addr
.s_addr
= htonl(INADDR_LOOPBACK
);
1789 if(connect (sv
[1], (struct sockaddr
*) &addr2
, sizeof (addr2
)) < 0)
1796 if((fd
= accept(sv
[1], (struct sockaddr
*) &addr3
, &addr3_len
)) < 0)