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 3550 2007-08-09 06:47:26Z nenolod $
30 #include <openssl/rsa.h>
38 #include "irc_string.h"
39 #include "sprintf_irc.h"
41 #include "ircd_defs.h"
46 #include "s_newconf.h"
53 #include "channel.h" /* chcap_usage_counts stuff... */
61 #define INADDR_NONE ((unsigned int) 0xffffffff)
64 #ifndef HAVE_SOCKETPAIR
65 static int inet_socketpair(int d
, int type
, int protocol
, int sv
[2]);
68 int MaxConnectionCount
= 1;
69 int MaxClientCount
= 1;
70 int refresh_user_links
= 0;
72 static char buf
[BUFSIZE
];
74 static void start_io(struct Client
*server
);
76 static SlinkRplHnd slink_error
;
77 static SlinkRplHnd slink_zipstats
;
79 * list of recognized server capabilities. "TS" is not on the list
80 * because all servers that we talk to already do TS, and the kludged
81 * extra argument to "PASS" takes care of checking that. -orabidoo
83 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
},
104 struct SlinkRplDef slinkrpltab
[] = {
105 {SLINKRPL_ERROR
, slink_error
, SLINKRPL_FLAG_DATA
},
106 {SLINKRPL_ZIPSTATS
, slink_zipstats
, SLINKRPL_FLAG_DATA
},
110 static int fork_server(struct Client
*client_p
);
112 static CNCB serv_connect_callback
;
115 slink_error(unsigned int rpl
, unsigned int len
, unsigned char *data
, struct Client
*server_p
)
117 char squitreason
[256];
119 s_assert(rpl
== SLINKRPL_ERROR
);
122 data
[len
- 1] = '\0';
124 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "SlinkError for %s: %s", server_p
->name
, data
);
125 snprintf(squitreason
, sizeof squitreason
, "servlink error: %s", data
);
126 exit_client(server_p
, server_p
, &me
, squitreason
);
130 slink_zipstats(unsigned int rpl
, unsigned int len
, unsigned char *data
, struct Client
*server_p
)
132 struct ZipStats zipstats
;
133 u_int32_t in
= 0, in_wire
= 0, out
= 0, out_wire
= 0;
136 s_assert(rpl
== SLINKRPL_ZIPSTATS
);
138 s_assert(IsCapable(server_p
, CAP_ZIP
));
140 /* Yes, it needs to be done this way, no we cannot let the compiler
141 * work with the pointer to the structure. This works around a GCC
142 * bug on SPARC that affects all versions at the time of this writing.
143 * I will feed you to the creatures living in RMS's beard if you do
144 * not leave this as is, without being sure that you are not causing
145 * regression for most of our installed SPARC base.
146 * -jmallett, 04/27/2002
148 memcpy(&zipstats
, &server_p
->localClient
->zipstats
, sizeof(struct ZipStats
));
150 in
|= (data
[i
++] << 24);
151 in
|= (data
[i
++] << 16);
152 in
|= (data
[i
++] << 8);
155 in_wire
|= (data
[i
++] << 24);
156 in_wire
|= (data
[i
++] << 16);
157 in_wire
|= (data
[i
++] << 8);
158 in_wire
|= (data
[i
++]);
160 out
|= (data
[i
++] << 24);
161 out
|= (data
[i
++] << 16);
162 out
|= (data
[i
++] << 8);
165 out_wire
|= (data
[i
++] << 24);
166 out_wire
|= (data
[i
++] << 16);
167 out_wire
|= (data
[i
++] << 8);
168 out_wire
|= (data
[i
++]);
171 zipstats
.inK
+= zipstats
.in
>> 10;
172 zipstats
.in
&= 0x03ff;
174 zipstats
.in_wire
+= in_wire
;
175 zipstats
.inK_wire
+= zipstats
.in_wire
>> 10;
176 zipstats
.in_wire
&= 0x03ff;
179 zipstats
.outK
+= zipstats
.out
>> 10;
180 zipstats
.out
&= 0x03ff;
182 zipstats
.out_wire
+= out_wire
;
183 zipstats
.outK_wire
+= zipstats
.out_wire
>> 10;
184 zipstats
.out_wire
&= 0x03ff;
188 (((double) (zipstats
.inK
- zipstats
.inK_wire
) /
189 (double) zipstats
.inK
) * 100.00);
191 zipstats
.in_ratio
= 0;
193 if(zipstats
.outK
> 0)
195 (((double) (zipstats
.outK
- zipstats
.outK_wire
) /
196 (double) zipstats
.outK
) * 100.00);
198 zipstats
.out_ratio
= 0;
200 memcpy(&server_p
->localClient
->zipstats
, &zipstats
, sizeof(struct ZipStats
));
204 collect_zipstats(void *unused
)
207 struct Client
*target_p
;
209 RB_DLINK_FOREACH(ptr
, serv_list
.head
)
211 target_p
= ptr
->data
;
212 if(IsCapable(target_p
, CAP_ZIP
))
214 /* only bother if we haven't already got something queued... */
215 if(!target_p
->localClient
->slinkq
)
217 target_p
->localClient
->slinkq
= rb_malloc(1); /* sigh.. */
218 target_p
->localClient
->slinkq
[0] = SLINKCMD_ZIPSTATS
;
219 target_p
->localClient
->slinkq_ofs
= 0;
220 target_p
->localClient
->slinkq_len
= 1;
221 send_queued_slink_write(target_p
->localClient
->ctrlfd
, target_p
);
228 * hunt_server - Do the basic thing in delivering the message (command)
229 * across the relays to the specific server (server) for
232 * Note: The command is a format string and *MUST* be
233 * of prefixed style (e.g. ":%s COMMAND %s ...").
234 * Command can have only max 8 parameters.
236 * server parv[server] is the parameter identifying the
240 * parv[server] is replaced with the pointer to the
241 * real servername from the matched client (I'm lazy
244 * returns: (see #defines)
247 hunt_server(struct Client
*client_p
, struct Client
*source_p
,
248 const char *command
, int server
, int parc
, const char *parv
[])
250 struct Client
*target_p
;
257 * Assume it's me, if no server
259 if(parc
<= server
|| EmptyString(parv
[server
]) ||
260 match(parv
[server
], me
.name
) || (strcmp(parv
[server
], me
.id
) == 0))
261 return (HUNTED_ISME
);
263 new = LOCAL_COPY(parv
[server
]);
266 * These are to pickup matches that would cause the following
267 * message to go in the wrong direction while doing quick fast
268 * non-matching lookups.
270 if(MyClient(source_p
))
271 target_p
= find_named_client(new);
273 target_p
= find_client(new);
276 if(target_p
->from
== source_p
->from
&& !MyConnect(target_p
))
280 wilds
= (strchr(new, '?') || strchr(new, '*'));
283 * Again, if there are no wild cards involved in the server
284 * name, use the hash lookup
290 if(MyClient(source_p
) || !IsDigit(parv
[server
][0]))
291 sendto_one_numeric(source_p
, ERR_NOSUCHSERVER
,
292 form_str(ERR_NOSUCHSERVER
),
294 return (HUNTED_NOSUCH
);
300 RB_DLINK_FOREACH(ptr
, global_client_list
.head
)
302 if(match(new, ((struct Client
*) (ptr
->data
))->name
))
304 target_p
= ptr
->data
;
313 if(!IsRegistered(target_p
))
315 sendto_one_numeric(source_p
, ERR_NOSUCHSERVER
,
316 form_str(ERR_NOSUCHSERVER
),
318 return HUNTED_NOSUCH
;
321 if(IsMe(target_p
) || MyClient(target_p
))
325 parv
[server
] = get_id(target_p
, target_p
);
327 sendto_one(target_p
, command
, get_id(source_p
, target_p
),
328 parv
[1], parv
[2], parv
[3], parv
[4], parv
[5], parv
[6], parv
[7], parv
[8]);
330 return (HUNTED_PASS
);
333 if(MyClient(source_p
) || !IsDigit(parv
[server
][0]))
334 sendto_one_numeric(source_p
, ERR_NOSUCHSERVER
,
335 form_str(ERR_NOSUCHSERVER
), parv
[server
]);
336 return (HUNTED_NOSUCH
);
340 * try_connections - scan through configuration and try new connections.
341 * Returns the calendar time when the next call to this
342 * function should be made latest. (No harm done if this
343 * is called earlier or later...)
346 try_connections(void *unused
)
348 struct Client
*client_p
;
349 struct server_conf
*server_p
= NULL
;
350 struct server_conf
*tmp_p
;
353 int connecting
= FALSE
;
357 RB_DLINK_FOREACH(ptr
, server_conf_list
.head
)
361 if(ServerConfIllegal(tmp_p
) || !ServerConfAutoconn(tmp_p
))
364 cltmp
= tmp_p
->class;
367 * Skip this entry if the use of it is still on hold until
368 * future. Otherwise handle this entry (and set it on hold
369 * until next time). Will reset only hold times, if already
370 * made one successfull connection... [this algorithm is
371 * a bit fuzzy... -- msa >;) ]
373 if(tmp_p
->hold
> rb_current_time())
375 if(next
> tmp_p
->hold
|| next
== 0)
380 confrq
= get_con_freq(cltmp
);
381 tmp_p
->hold
= rb_current_time() + confrq
;
384 * Found a CONNECT config with port specified, scan clients
385 * and see if this server is already connected?
387 client_p
= find_server(NULL
, tmp_p
->name
);
389 if(!client_p
&& (CurrUsers(cltmp
) < MaxUsers(cltmp
)) && !connecting
)
393 /* We connect only one at time... */
397 if((next
> tmp_p
->hold
) || (next
== 0))
401 /* TODO: change this to set active flag to 0 when added to event! --Habeeb */
402 if(GlobalSetOptions
.autoconn
== 0)
408 /* move this connect entry to end.. */
409 rb_dlinkDelete(&server_p
->node
, &server_conf_list
);
410 rb_dlinkAddTail(server_p
, &server_p
->node
, &server_conf_list
);
413 * We used to only print this if serv_connect() actually
414 * suceeded, but since rb_tcp_connect() can call the callback
415 * immediately if there is an error, we were getting error messages
416 * in the wrong order. SO, we just print out the activated line,
417 * and let serv_connect() / serv_connect_callback() print an
418 * error afterwards if it fails.
421 #ifndef HIDE_SERVERS_IPS
422 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
423 "Connection to %s[%s] activated.",
424 server_p
->name
, server_p
->host
);
426 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
427 "Connection to %s activated",
431 serv_connect(server_p
, 0);
435 check_server(const char *name
, struct Client
*client_p
)
437 struct server_conf
*server_p
= NULL
;
438 struct server_conf
*tmp_p
;
442 s_assert(NULL
!= client_p
);
446 if(!(client_p
->localClient
->passwd
))
449 if(strlen(name
) > HOSTLEN
)
452 RB_DLINK_FOREACH(ptr
, server_conf_list
.head
)
456 if(ServerConfIllegal(tmp_p
))
459 if(!match(tmp_p
->name
, name
))
464 /* XXX: Fix me for IPv6 */
465 /* XXX sockhost is the IPv4 ip as a string */
466 if(match(tmp_p
->host
, client_p
->host
) ||
467 match(tmp_p
->host
, client_p
->sockhost
))
471 if(ServerConfEncrypted(tmp_p
))
473 if(!strcmp(tmp_p
->passwd
, crypt(client_p
->localClient
->passwd
,
480 else if(!strcmp(tmp_p
->passwd
, client_p
->localClient
->passwd
))
491 attach_server_conf(client_p
, server_p
);
493 /* clear ZIP/TB if they support but we dont want them */
495 if(!ServerConfCompressed(server_p
))
497 ClearCap(client_p
, CAP_ZIP
);
499 if(!ServerConfTb(server_p
))
500 ClearCap(client_p
, CAP_TB
);
508 * inputs - Client pointer to send to
509 * - int flag of capabilities that this server has
511 * side effects - send the CAPAB line to a server -orabidoo
515 send_capabilities(struct Client
*client_p
, int cap_can_send
)
517 struct Capability
*cap
;
518 char msgbuf
[BUFSIZE
];
524 for (cap
= captab
; cap
->name
; ++cap
)
526 if(cap
->cap
& cap_can_send
)
528 tl
= rb_sprintf(t
, "%s ", cap
->name
);
536 sendto_one(client_p
, "CAPAB :%s", msgbuf
);
541 * input - client to burst to, channel name, list to burst, mode flag
543 * side effects - client is sent a list of +b, or +e, or +I modes
546 burst_modes_TS5(struct Client
*client_p
, char *chname
, rb_dlink_list
*list
, char flag
)
550 char mbuf
[MODEBUFLEN
];
559 mlen
= rb_sprintf(buf
, ":%s MODE %s +", me
.name
, chname
);
565 RB_DLINK_FOREACH(ptr
, list
->head
)
568 tlen
= strlen(banptr
->banstr
) + 3;
571 if(tlen
> MODEBUFLEN
)
574 if((count
>= MAXMODEPARAMS
) || ((cur_len
+ tlen
+ 2) > (BUFSIZE
- 3)))
576 sendto_one(client_p
, "%s%s %s", buf
, mbuf
, pbuf
);
586 pp
+= rb_sprintf(pp
, "%s ", banptr
->banstr
);
592 sendto_one(client_p
, "%s%s %s", buf
, mbuf
, pbuf
);
597 * input - client to burst to, channel name, list to burst, mode flag
599 * side effects - client is sent a list of +b, +e, or +I modes
602 burst_modes_TS6(struct Client
*client_p
, struct Channel
*chptr
,
603 rb_dlink_list
*list
, char flag
)
612 cur_len
= mlen
= rb_sprintf(buf
, ":%s BMASK %ld %s %c :",
613 me
.id
, (long) chptr
->channelts
, chptr
->chname
, flag
);
616 RB_DLINK_FOREACH(ptr
, list
->head
)
620 tlen
= strlen(banptr
->banstr
) + 1;
623 if(cur_len
+ tlen
> BUFSIZE
- 3)
625 /* the one we're trying to send doesnt fit at all! */
632 /* chop off trailing space and send.. */
634 sendto_one(client_p
, "%s", buf
);
639 rb_sprintf(t
, "%s ", banptr
->banstr
);
644 /* cant ever exit the loop above without having modified buf,
645 * chop off trailing space and send.
648 sendto_one(client_p
, "%s", buf
);
654 * inputs - client (server) to send nick towards
655 * - client to send nick for
657 * side effects - NICK message is sent towards given client_p
660 burst_TS5(struct Client
*client_p
)
662 static char ubuf
[12];
663 struct Client
*target_p
;
664 struct Channel
*chptr
;
665 struct membership
*msptr
;
666 hook_data_client hclientinfo
;
667 hook_data_channel hchaninfo
;
674 hclientinfo
.client
= hchaninfo
.client
= client_p
;
676 RB_DLINK_FOREACH(ptr
, global_client_list
.head
)
678 target_p
= ptr
->data
;
680 if(!IsPerson(target_p
))
683 send_umode(NULL
, target_p
, 0, 0, ubuf
);
690 sendto_one(client_p
, "NICK %s %d %ld %s %s %s %s :%s",
691 target_p
->name
, target_p
->hopcount
+ 1,
692 (long) target_p
->tsinfo
, ubuf
,
693 target_p
->username
, target_p
->host
,
694 target_p
->servptr
->name
, target_p
->info
);
696 if(IsDynSpoof(target_p
))
697 sendto_one(client_p
, ":%s ENCAP * REALHOST %s",
698 target_p
->name
, target_p
->orighost
);
699 if(!EmptyString(target_p
->user
->suser
))
700 sendto_one(client_p
, ":%s ENCAP * LOGIN %s",
701 target_p
->name
, target_p
->user
->suser
);
703 if(ConfigFileEntry
.burst_away
&& !EmptyString(target_p
->user
->away
))
704 sendto_one(client_p
, ":%s AWAY :%s",
705 target_p
->name
, target_p
->user
->away
);
707 hclientinfo
.target
= target_p
;
708 call_hook(h_burst_client
, &hclientinfo
);
711 RB_DLINK_FOREACH(ptr
, global_channel_list
.head
)
715 if(*chptr
->chname
!= '#')
718 cur_len
= mlen
= rb_sprintf(buf
, ":%s SJOIN %ld %s %s :", me
.name
,
719 (long) chptr
->channelts
, chptr
->chname
,
720 channel_modes(chptr
, client_p
));
724 RB_DLINK_FOREACH(uptr
, chptr
->members
.head
)
728 tlen
= strlen(msptr
->client_p
->name
) + 1;
734 if(cur_len
+ tlen
>= BUFSIZE
- 3)
738 sendto_one(client_p
, "%s", buf
);
743 rb_sprintf(t
, "%s%s ", find_channel_status(msptr
, 1),
744 msptr
->client_p
->name
);
750 if (rb_dlink_list_length(&chptr
->members
) > 0)
752 /* remove trailing space */
756 sendto_one(client_p
, "%s", buf
);
758 burst_modes_TS5(client_p
, chptr
->chname
, &chptr
->banlist
, 'b');
760 if(IsCapable(client_p
, CAP_EX
))
761 burst_modes_TS5(client_p
, chptr
->chname
, &chptr
->exceptlist
, 'e');
763 if(IsCapable(client_p
, CAP_IE
))
764 burst_modes_TS5(client_p
, chptr
->chname
, &chptr
->invexlist
, 'I');
766 burst_modes_TS5(client_p
, chptr
->chname
, &chptr
->quietlist
, 'q');
768 if(IsCapable(client_p
, CAP_TB
) && chptr
->topic
!= NULL
)
769 sendto_one(client_p
, ":%s TB %s %ld %s%s:%s",
770 me
.name
, chptr
->chname
, (long) chptr
->topic_time
,
771 ConfigChannel
.burst_topicwho
? chptr
->topic_info
: "",
772 ConfigChannel
.burst_topicwho
? " " : "",
775 hchaninfo
.chptr
= chptr
;
776 call_hook(h_burst_channel
, &hchaninfo
);
779 hclientinfo
.target
= NULL
;
780 call_hook(h_burst_finished
, &hclientinfo
);
786 * inputs - client (server) to send nick towards
787 * - client to send nick for
789 * side effects - NICK message is sent towards given client_p
792 burst_TS6(struct Client
*client_p
)
794 static char ubuf
[12];
795 struct Client
*target_p
;
796 struct Channel
*chptr
;
797 struct membership
*msptr
;
798 hook_data_client hclientinfo
;
799 hook_data_channel hchaninfo
;
806 hclientinfo
.client
= hchaninfo
.client
= client_p
;
808 RB_DLINK_FOREACH(ptr
, global_client_list
.head
)
810 target_p
= ptr
->data
;
812 if(!IsPerson(target_p
))
815 send_umode(NULL
, target_p
, 0, 0, ubuf
);
822 if(has_id(target_p
) && IsCapable(client_p
, CAP_EUID
))
823 sendto_one(client_p
, ":%s EUID %s %d %ld %s %s %s %s %s %s %s :%s",
824 target_p
->servptr
->id
, target_p
->name
,
825 target_p
->hopcount
+ 1,
826 (long) target_p
->tsinfo
, ubuf
,
827 target_p
->username
, target_p
->host
,
828 IsIPSpoof(target_p
) ? "0" : target_p
->sockhost
,
830 IsDynSpoof(target_p
) ? target_p
->orighost
: "*",
831 EmptyString(target_p
->user
->suser
) ? "*" : target_p
->user
->suser
,
833 else if(has_id(target_p
))
834 sendto_one(client_p
, ":%s UID %s %d %ld %s %s %s %s %s :%s",
835 target_p
->servptr
->id
, target_p
->name
,
836 target_p
->hopcount
+ 1,
837 (long) target_p
->tsinfo
, ubuf
,
838 target_p
->username
, target_p
->host
,
839 IsIPSpoof(target_p
) ? "0" : target_p
->sockhost
,
840 target_p
->id
, target_p
->info
);
842 sendto_one(client_p
, "NICK %s %d %ld %s %s %s %s :%s",
844 target_p
->hopcount
+ 1,
845 (long) target_p
->tsinfo
,
847 target_p
->username
, target_p
->host
,
848 target_p
->servptr
->name
, target_p
->info
);
850 if(!has_id(target_p
) || !IsCapable(client_p
, CAP_EUID
))
852 if(IsDynSpoof(target_p
))
853 sendto_one(client_p
, ":%s ENCAP * REALHOST %s",
854 use_id(target_p
), target_p
->orighost
);
855 if(!EmptyString(target_p
->user
->suser
))
856 sendto_one(client_p
, ":%s ENCAP * LOGIN %s",
857 use_id(target_p
), target_p
->user
->suser
);
860 if(ConfigFileEntry
.burst_away
&& !EmptyString(target_p
->user
->away
))
861 sendto_one(client_p
, ":%s AWAY :%s",
863 target_p
->user
->away
);
865 hclientinfo
.target
= target_p
;
866 call_hook(h_burst_client
, &hclientinfo
);
869 RB_DLINK_FOREACH(ptr
, global_channel_list
.head
)
873 if(*chptr
->chname
!= '#')
876 cur_len
= mlen
= rb_sprintf(buf
, ":%s SJOIN %ld %s %s :", me
.id
,
877 (long) chptr
->channelts
, chptr
->chname
,
878 channel_modes(chptr
, client_p
));
882 RB_DLINK_FOREACH(uptr
, chptr
->members
.head
)
886 tlen
= strlen(use_id(msptr
->client_p
)) + 1;
892 if(cur_len
+ tlen
>= BUFSIZE
- 3)
895 sendto_one(client_p
, "%s", buf
);
900 rb_sprintf(t
, "%s%s ", find_channel_status(msptr
, 1),
901 use_id(msptr
->client_p
));
907 if (rb_dlink_list_length(&chptr
->members
) > 0)
909 /* remove trailing space */
912 sendto_one(client_p
, "%s", buf
);
914 if(rb_dlink_list_length(&chptr
->banlist
) > 0)
915 burst_modes_TS6(client_p
, chptr
, &chptr
->banlist
, 'b');
917 if(IsCapable(client_p
, CAP_EX
) &&
918 rb_dlink_list_length(&chptr
->exceptlist
) > 0)
919 burst_modes_TS6(client_p
, chptr
, &chptr
->exceptlist
, 'e');
921 if(IsCapable(client_p
, CAP_IE
) &&
922 rb_dlink_list_length(&chptr
->invexlist
) > 0)
923 burst_modes_TS6(client_p
, chptr
, &chptr
->invexlist
, 'I');
925 if(rb_dlink_list_length(&chptr
->quietlist
) > 0)
926 burst_modes_TS6(client_p
, chptr
, &chptr
->quietlist
, 'q');
928 if(IsCapable(client_p
, CAP_TB
) && chptr
->topic
!= NULL
)
929 sendto_one(client_p
, ":%s TB %s %ld %s%s:%s",
930 me
.id
, chptr
->chname
, (long) chptr
->topic_time
,
931 ConfigChannel
.burst_topicwho
? chptr
->topic_info
: "",
932 ConfigChannel
.burst_topicwho
? " " : "",
935 hchaninfo
.chptr
= chptr
;
936 call_hook(h_burst_channel
, &hchaninfo
);
939 hclientinfo
.target
= NULL
;
940 call_hook(h_burst_finished
, &hclientinfo
);
944 * show_capabilities - show current server capabilities
946 * inputs - pointer to an struct Client
947 * output - pointer to static string
948 * side effects - build up string representing capabilities of server listed
951 show_capabilities(struct Client
*target_p
)
953 static char msgbuf
[BUFSIZE
];
954 struct Capability
*cap
;
959 tl
= rb_sprintf(msgbuf
, "TS ");
962 if(!IsServer(target_p
) || !target_p
->serv
->caps
) /* short circuit if no caps */
968 for (cap
= captab
; cap
->cap
; ++cap
)
970 if(cap
->cap
& target_p
->serv
->caps
)
972 tl
= rb_sprintf(t
, "%s ", cap
->name
);
986 * inputs - pointer to a struct Client
991 server_estab(struct Client
*client_p
)
993 struct Client
*target_p
;
994 struct server_conf
*server_p
;
995 hook_data_client hdata
;
999 s_assert(NULL
!= client_p
);
1000 if(client_p
== NULL
)
1003 host
= client_p
->name
;
1005 if((server_p
= client_p
->localClient
->att_sconf
) == NULL
)
1007 /* This shouldn't happen, better tell the ops... -A1kmm */
1008 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
1009 "Warning: Lost connect{} block for server %s!", host
);
1010 return exit_client(client_p
, client_p
, client_p
, "Lost connect{} block!");
1013 /* We shouldn't have to check this, it should already done before
1014 * server_estab is called. -A1kmm
1016 if(client_p
->localClient
->passwd
)
1018 memset(client_p
->localClient
->passwd
, 0, strlen(client_p
->localClient
->passwd
));
1019 rb_free(client_p
->localClient
->passwd
);
1020 client_p
->localClient
->passwd
= NULL
;
1023 /* Its got identd , since its a server */
1026 /* If there is something in the serv_list, it might be this
1027 * connecting server..
1029 if(!ServerInfo
.hub
&& serv_list
.head
)
1031 if(client_p
!= serv_list
.head
->data
|| serv_list
.head
->next
)
1033 ServerStats
->is_ref
++;
1034 sendto_one(client_p
, "ERROR :I'm a leaf not a hub");
1035 return exit_client(client_p
, client_p
, client_p
, "I'm a leaf");
1039 if(IsUnknown(client_p
))
1042 * jdc -- 1. Use EmptyString(), not [0] index reference.
1043 * 2. Check ->spasswd, not ->passwd.
1045 if(!EmptyString(server_p
->spasswd
))
1047 sendto_one(client_p
, "PASS %s TS %d :%s",
1048 server_p
->spasswd
, TS_CURRENT
, me
.id
);
1051 /* pass info to new server */
1052 send_capabilities(client_p
, default_server_capabs
1053 | (ServerConfCompressed(server_p
) ? CAP_ZIP_SUPPORTED
: 0)
1054 | (ServerConfTb(server_p
) ? CAP_TB
: 0));
1056 sendto_one(client_p
, "SERVER %s 1 :%s%s",
1058 ConfigServerHide
.hidden
? "(H) " : "",
1059 (me
.info
[0]) ? (me
.info
) : "IRCers United");
1062 if(!rb_set_buffers(client_p
->localClient
->F
->fd
, READBUF_SIZE
))
1063 report_error(SETBUF_ERROR_MSG
,
1064 get_server_name(client_p
, SHOW_IP
),
1065 log_client_name(client_p
, SHOW_IP
), errno
);
1067 /* Hand the server off to servlink now */
1068 if(IsCapable(client_p
, CAP_ZIP
))
1070 if(fork_server(client_p
) < 0)
1072 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
1073 "Warning: fork failed for server %s -- check servlink_path (%s)",
1074 get_server_name(client_p
, HIDE_IP
),
1075 ConfigFileEntry
.servlink_path
);
1076 return exit_client(client_p
, client_p
, client_p
, "Fork failed");
1079 SetServlink(client_p
);
1082 sendto_one(client_p
, "SVINFO %d %d 0 :%ld", TS_CURRENT
, TS_MIN
, rb_current_time());
1084 client_p
->servptr
= &me
;
1086 if(IsAnyDead(client_p
))
1087 return CLIENT_EXITED
;
1089 SetServer(client_p
);
1091 /* Update the capability combination usage counts */
1092 set_chcap_usage_counts(client_p
);
1094 rb_dlinkAdd(client_p
, &client_p
->lnode
, &me
.serv
->servers
);
1095 del_unknown_ip(client_p
);
1096 rb_dlinkMoveNode(&client_p
->localClient
->tnode
, &unknown_list
, &serv_list
);
1097 rb_dlinkAddTailAlloc(client_p
, &global_serv_list
);
1099 if(has_id(client_p
))
1100 add_to_id_hash(client_p
->id
, client_p
);
1102 add_to_client_hash(client_p
->name
, client_p
);
1103 /* doesnt duplicate client_p->serv if allocated this struct already */
1104 make_server(client_p
);
1106 client_p
->serv
->caps
= client_p
->localClient
->caps
;
1108 if(client_p
->localClient
->fullcaps
)
1110 client_p
->serv
->fullcaps
= rb_strdup(client_p
->localClient
->fullcaps
);
1111 rb_free(client_p
->localClient
->fullcaps
);
1112 client_p
->localClient
->fullcaps
= NULL
;
1115 client_p
->serv
->nameinfo
= scache_connect(client_p
->name
, client_p
->info
, IsHidden(client_p
));
1116 client_p
->localClient
->firsttime
= rb_current_time();
1117 /* fixing eob timings.. -gnp */
1119 if((rb_dlink_list_length(&lclient_list
) + rb_dlink_list_length(&serv_list
)) >
1120 (unsigned long)MaxConnectionCount
)
1121 MaxConnectionCount
= rb_dlink_list_length(&lclient_list
) +
1122 rb_dlink_list_length(&serv_list
);
1124 /* Show the real host/IP to admins */
1125 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1126 "Link with %s established: (%s) link",
1127 get_server_name(client_p
, SHOW_IP
),
1128 show_capabilities(client_p
));
1130 ilog(L_SERVER
, "Link with %s established: (%s) link",
1131 log_client_name(client_p
, SHOW_IP
), show_capabilities(client_p
));
1134 hdata
.target
= client_p
;
1135 call_hook(h_server_introduced
, &hdata
);
1137 if(HasServlink(client_p
))
1139 /* we won't overflow FD_DESC_SZ here, as it can hold
1140 * client_p->name + 64
1142 rb_note(client_p
->localClient
->F
->fd
, "slink data: %s", client_p
->name
);
1143 rb_note(client_p
->localClient
->ctrlfd
, "slink ctrl: %s", client_p
->name
);
1146 rb_note(client_p
->localClient
->F
->fd
, "Server: %s", client_p
->name
);
1149 ** Old sendto_serv_but_one() call removed because we now
1150 ** need to send different names to different servers
1151 ** (domain name matching) Send new server to other servers.
1153 RB_DLINK_FOREACH(ptr
, serv_list
.head
)
1155 target_p
= ptr
->data
;
1157 if(target_p
== client_p
)
1160 if(has_id(target_p
) && has_id(client_p
))
1162 sendto_one(target_p
, ":%s SID %s 2 %s :%s%s",
1163 me
.id
, client_p
->name
, client_p
->id
,
1164 IsHidden(client_p
) ? "(H) " : "", client_p
->info
);
1166 if(IsCapable(target_p
, CAP_ENCAP
) &&
1167 !EmptyString(client_p
->serv
->fullcaps
))
1168 sendto_one(target_p
, ":%s ENCAP * GCAP :%s",
1169 client_p
->id
, client_p
->serv
->fullcaps
);
1173 sendto_one(target_p
, ":%s SERVER %s 2 :%s%s",
1174 me
.name
, client_p
->name
,
1175 IsHidden(client_p
) ? "(H) " : "", client_p
->info
);
1177 if(IsCapable(target_p
, CAP_ENCAP
) &&
1178 !EmptyString(client_p
->serv
->fullcaps
))
1179 sendto_one(target_p
, ":%s ENCAP * GCAP :%s",
1180 client_p
->name
, client_p
->serv
->fullcaps
);
1185 ** Pass on my client information to the new server
1187 ** First, pass only servers (idea is that if the link gets
1188 ** cancelled beacause the server was already there,
1189 ** there are no NICK's to be cancelled...). Of course,
1190 ** if cancellation occurs, all this info is sent anyway,
1191 ** and I guess the link dies when a read is attempted...? --msa
1193 ** Note: Link cancellation to occur at this point means
1194 ** that at least two servers from my fragment are building
1195 ** up connection this other fragment at the same time, it's
1196 ** a race condition, not the normal way of operation...
1198 ** ALSO NOTE: using the get_client_name for server names--
1199 ** see previous *WARNING*!!! (Also, original inpath
1202 RB_DLINK_FOREACH(ptr
, global_serv_list
.head
)
1204 target_p
= ptr
->data
;
1206 /* target_p->from == target_p for target_p == client_p */
1207 if(IsMe(target_p
) || target_p
->from
== client_p
)
1210 /* presumption, if target has an id, so does its uplink */
1211 if(has_id(client_p
) && has_id(target_p
))
1212 sendto_one(client_p
, ":%s SID %s %d %s :%s%s",
1213 target_p
->servptr
->id
, target_p
->name
,
1214 target_p
->hopcount
+ 1, target_p
->id
,
1215 IsHidden(target_p
) ? "(H) " : "", target_p
->info
);
1217 sendto_one(client_p
, ":%s SERVER %s %d :%s%s",
1218 target_p
->servptr
->name
,
1219 target_p
->name
, target_p
->hopcount
+ 1,
1220 IsHidden(target_p
) ? "(H) " : "", target_p
->info
);
1222 if(IsCapable(client_p
, CAP_ENCAP
) &&
1223 !EmptyString(target_p
->serv
->fullcaps
))
1224 sendto_one(client_p
, ":%s ENCAP * GCAP :%s",
1225 get_id(target_p
, client_p
),
1226 target_p
->serv
->fullcaps
);
1229 if(has_id(client_p
))
1230 burst_TS6(client_p
);
1232 burst_TS5(client_p
);
1234 /* Always send a PING after connect burst is done */
1235 sendto_one(client_p
, "PING :%s", get_id(&me
, client_p
));
1237 free_pre_client(client_p
);
1243 start_io(struct Client
*server
)
1245 unsigned char *iobuf
;
1250 iobuf
= rb_malloc(256); /* XXX: This seems arbitrary. Perhaps make it IRCD_BUFSIZE? --nenolod */
1252 if(IsCapable(server
, CAP_ZIP
))
1255 iobuf
[c
++] = SLINKCMD_SET_ZIP_OUT_LEVEL
;
1256 iobuf
[c
++] = 0; /* | */
1257 iobuf
[c
++] = 1; /* \ len is 1 */
1258 iobuf
[c
++] = ConfigFileEntry
.compression_level
;
1259 iobuf
[c
++] = SLINKCMD_START_ZIP_IN
;
1260 iobuf
[c
++] = SLINKCMD_START_ZIP_OUT
;
1263 while (MyConnect(server
))
1267 iobuf
= MyRealloc(iobuf
, (c
+ READBUF_SIZE
+ 64));
1269 /* store data in c+3 to allow for SLINKCMD_INJECT_RECVQ and len u16 */
1270 linelen
= linebuf_get(&server
->localClient
->buf_recvq
, (char *) (iobuf
+ c
+ 3), READBUF_SIZE
, LINEBUF_PARTIAL
, LINEBUF_RAW
); /* include partial lines */
1274 iobuf
[c
++] = SLINKCMD_INJECT_RECVQ
;
1275 iobuf
[c
++] = (linelen
>> 8);
1276 iobuf
[c
++] = (linelen
& 0xff);
1283 while (MyConnect(server
))
1287 iobuf
= MyRealloc(iobuf
, (c
+ BUF_DATA_SIZE
+ 64));
1289 /* store data in c+3 to allow for SLINKCMD_INJECT_RECVQ and len u16 */
1290 linelen
= linebuf_get(&server
->localClient
->buf_sendq
,
1291 (char *) (iobuf
+ c
+ 3), READBUF_SIZE
,
1292 LINEBUF_PARTIAL
, LINEBUF_PARSED
); /* include partial lines */
1296 iobuf
[c
++] = SLINKCMD_INJECT_SENDQ
;
1297 iobuf
[c
++] = (linelen
>> 8);
1298 iobuf
[c
++] = (linelen
& 0xff);
1306 iobuf
[c
++] = SLINKCMD_INIT
;
1308 server
->localClient
->slinkq
= iobuf
;
1309 server
->localClient
->slinkq_ofs
= 0;
1310 server
->localClient
->slinkq_len
= c
;
1312 /* schedule a write */
1313 send_queued_slink_write(server
->localClient
->ctrlfd
, server
);
1319 * inputs - struct Client *server
1320 * output - success: 0 / failure: -1
1321 * side effect - fork, and exec SERVLINK to handle this connection
1324 fork_server(struct Client
*server
)
1333 char slink
[] = "-slink";
1337 #ifdef HAVE_SOCKETPAIR
1338 if(socketpair(AF_UNIX
, SOCK_STREAM
, 0, ctrl_fds
) < 0)
1340 if(inet_socketpair(AF_INET
,SOCK_STREAM
, 0, ctrl_fds
) < 0)
1347 #ifdef HAVE_SOCKETPAIR
1348 if(socketpair(AF_UNIX
, SOCK_STREAM
, 0, data_fds
) < 0)
1350 if(inet_socketpair(AF_INET
,SOCK_STREAM
, 0, data_fds
) < 0)
1356 if((ret
= vfork()) < 0)
1358 if((ret
= fork()) < 0)
1363 int maxconn
= rb_get_maxconnections();
1365 /* set our fds as non blocking and close everything else */
1366 for (i
= 0; i
< maxconn
; i
++)
1370 if((i
== ctrl_fds
[1]) || (i
== data_fds
[1]) || (i
== server
->localClient
->F
->fd
))
1377 if(i
> 2) /* don't close std* */
1383 rb_snprintf(fd_str
[0], sizeof(fd_str
[0]), "%d", ctrl_fds
[1]);
1384 rb_snprintf(fd_str
[1], sizeof(fd_str
[1]), "%d", data_fds
[1]);
1385 rb_snprintf(fd_str
[2], sizeof(fd_str
[2]), "%d", server
->localClient
->F
->fd
);
1386 kid_argv
[0] = slink
;
1387 kid_argv
[1] = fd_str
[0];
1388 kid_argv
[2] = fd_str
[1];
1389 kid_argv
[3] = fd_str
[2];
1392 /* exec servlink program */
1393 execv(ConfigFileEntry
.servlink_path
, kid_argv
);
1395 /* We're still here, abort. */
1400 rb_close(server
->localClient
->F
->fd
);
1402 /* close the childs end of the pipes */
1406 s_assert(server
->localClient
);
1407 server
->localClient
->ctrlfd
= ctrl_fds
[0];
1408 server
->localClient
->F
= rb_add_fd(data_fds
[0]);
1410 if(!rb_set_nb(server
->localClient
->F
->fd
))
1412 report_error(NONB_ERROR_MSG
,
1413 get_server_name(server
, SHOW_IP
),
1414 log_client_name(server
, SHOW_IP
),
1418 if(!rb_set_nb(server
->localClient
->ctrlfd
))
1420 report_error(NONB_ERROR_MSG
,
1421 get_server_name(server
, SHOW_IP
),
1422 log_client_name(server
, SHOW_IP
),
1426 rb_open(server
->localClient
->ctrlfd
, FD_SOCKET
, NULL
);
1427 rb_open(server
->localClient
->F
->fd
, FD_SOCKET
, NULL
);
1429 read_ctrl_packet(server
->localClient
->ctrlfd
, server
);
1430 read_packet(server
->localClient
->F
->fd
, server
);
1436 /* this is ugly, but nicer than repeating
1437 * about 50 close() statements everywhre... */
1446 * New server connection code
1447 * Based upon the stuff floating about in s_bsd.c
1452 * serv_connect() - initiate a server connection
1454 * inputs - pointer to conf
1455 * - pointer to client doing the connet
1459 * This code initiates a connection to a server. It first checks to make
1460 * sure the given server exists. If this is the case, it creates a socket,
1461 * creates a client, saves the socket information in the client, and
1462 * initiates a connection to the server through rb_connect_tcp(). The
1463 * completion of this goes through serv_completed_connection().
1465 * We return 1 if the connection is attempted, since we don't know whether
1466 * it suceeded or not, and 0 if it fails in here somewhere.
1469 serv_connect(struct server_conf
*server_p
, struct Client
*by
)
1471 struct Client
*client_p
;
1472 struct irc_sockaddr_storage myipnum
;
1474 char vhoststr
[HOSTIPLEN
];
1476 s_assert(server_p
!= NULL
);
1477 if(server_p
== NULL
)
1481 * Make sure this server isn't already connected
1483 if((client_p
= find_server(NULL
, server_p
->name
)))
1485 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1486 "Server %s already present from %s",
1487 server_p
->name
, get_server_name(client_p
, SHOW_IP
));
1488 if(by
&& IsPerson(by
) && !MyClient(by
))
1489 sendto_one_notice(by
, ":Server %s already present from %s",
1490 server_p
->name
, get_server_name(client_p
, SHOW_IP
));
1494 /* create a socket for the server connection */
1495 if((fd
= rb_socket(server_p
->aftype
, SOCK_STREAM
, 0, NULL
)) < 0)
1497 /* Eek, failure to create the socket */
1498 report_error("opening stream socket to %s: %s",
1499 server_p
->name
, server_p
->name
, errno
);
1503 /* servernames are always guaranteed under HOSTLEN chars */
1504 rb_note(fd
, "Server: %s", server_p
->name
);
1506 /* Create a local client */
1507 client_p
= make_client(NULL
);
1509 /* Copy in the server, hostname, fd
1510 * The sockhost may be a hostname, this will be corrected later
1513 strlcpy(client_p
->name
, server_p
->name
, sizeof(client_p
->name
));
1514 strlcpy(client_p
->host
, server_p
->host
, sizeof(client_p
->host
));
1515 strlcpy(client_p
->sockhost
, server_p
->host
, sizeof(client_p
->sockhost
));
1516 client_p
->localClient
->F
= rb_add_fd(fd
);
1519 * Set up the initial server evilness, ripped straight from
1520 * connect_server(), so don't blame me for it being evil.
1524 if(!rb_set_buffers(client_p
->localClient
->F
->fd
, READBUF_SIZE
))
1526 report_error(SETBUF_ERROR_MSG
,
1527 get_server_name(client_p
, SHOW_IP
),
1528 log_client_name(client_p
, SHOW_IP
),
1533 * Attach config entries to client here rather than in
1534 * serv_connect_callback(). This to avoid null pointer references.
1536 attach_server_conf(client_p
, server_p
);
1539 * at this point we have a connection in progress and C/N lines
1540 * attached to the client, the socket info should be saved in the
1541 * client and it should either be resolved or have a valid address.
1543 * The socket has been connected or connect is in progress.
1545 make_server(client_p
);
1546 if(by
&& IsPerson(by
))
1548 strcpy(client_p
->serv
->by
, by
->name
);
1549 if(client_p
->serv
->user
)
1550 free_user(client_p
->serv
->user
, NULL
);
1551 client_p
->serv
->user
= by
->user
;
1556 strcpy(client_p
->serv
->by
, "AutoConn.");
1557 if(client_p
->serv
->user
)
1558 free_user(client_p
->serv
->user
, NULL
);
1559 client_p
->serv
->user
= NULL
;
1561 SetConnecting(client_p
);
1562 rb_dlinkAddTail(client_p
, &client_p
->node
, &global_client_list
);
1564 if(ServerConfVhosted(server_p
))
1566 memcpy(&myipnum
, &server_p
->my_ipnum
, sizeof(myipnum
));
1567 ((struct sockaddr_in
*)&myipnum
)->sin_port
= 0;
1568 myipnum
.ss_family
= server_p
->aftype
;
1571 else if(server_p
->aftype
== AF_INET
&& ServerInfo
.specific_ipv4_vhost
)
1573 memcpy(&myipnum
, &ServerInfo
.ip
, sizeof(myipnum
));
1574 ((struct sockaddr_in
*)&myipnum
)->sin_port
= 0;
1575 myipnum
.ss_family
= AF_INET
;
1576 SET_SS_LEN(myipnum
, sizeof(struct sockaddr_in
));
1580 else if((server_p
->aftype
== AF_INET6
) && ServerInfo
.specific_ipv6_vhost
)
1582 memcpy(&myipnum
, &ServerInfo
.ip6
, sizeof(myipnum
));
1583 ((struct sockaddr_in6
*)&myipnum
)->sin6_port
= 0;
1584 myipnum
.ss_family
= AF_INET6
;
1585 SET_SS_LEN(myipnum
, sizeof(struct sockaddr_in6
));
1591 ilog(L_SERVER
, "Connecting to %s[%s] port %d (%s)", server_p
->name
, server_p
->host
, server_p
->port
,
1593 server_p
->aftype
== AF_INET6
? "IPv6" :
1595 (server_p
->aftype
== AF_INET
? "IPv4" : "?"));
1597 rb_connect_tcp(client_p
->localClient
->F
->fd
, server_p
->host
,
1598 server_p
->port
, NULL
, 0, serv_connect_callback
,
1599 client_p
, server_p
->aftype
,
1600 ConfigFileEntry
.connect_timeout
);
1605 inetntop_sock((struct sockaddr
*)&myipnum
, vhoststr
, sizeof vhoststr
);
1606 ilog(L_SERVER
, "Connecting to %s[%s] port %d (%s) (vhost %s)", server_p
->name
, server_p
->host
, server_p
->port
,
1608 server_p
->aftype
== AF_INET6
? "IPv6" :
1610 (server_p
->aftype
== AF_INET
? "IPv4" : "?"), vhoststr
);
1613 rb_connect_tcp(client_p
->localClient
->F
->fd
, server_p
->host
,
1614 server_p
->port
, (struct sockaddr
*) &myipnum
,
1615 GET_SS_LEN(myipnum
), serv_connect_callback
, client_p
,
1616 myipnum
.ss_family
, ConfigFileEntry
.connect_timeout
);
1622 * serv_connect_callback() - complete a server connection.
1624 * This routine is called after the server connection attempt has
1625 * completed. If unsucessful, an error is sent to ops and the client
1626 * is closed. If sucessful, it goes through the initialisation/check
1627 * procedures, the capabilities are sent, and the socket is then
1628 * marked for reading.
1631 serv_connect_callback(int fd
, int status
, void *data
)
1633 struct Client
*client_p
= data
;
1634 struct server_conf
*server_p
;
1636 fde_t
*F
= rb_locate_fd(fd
);
1638 /* First, make sure its a real client! */
1639 s_assert(client_p
!= NULL
);
1640 s_assert(client_p
->localClient
->F
->fd
== fd
);
1642 if(client_p
== NULL
)
1645 /* while we were waiting for the callback, its possible this already
1648 if(find_server(NULL
, client_p
->name
) != NULL
)
1650 exit_client(client_p
, client_p
, &me
, "Server Exists");
1654 /* Next, for backward purposes, record the ip of the server */
1655 memcpy(&client_p
->localClient
->ip
, &F
->connect
.hostaddr
, sizeof client_p
->localClient
->ip
);
1656 /* Set sockhost properly now -- jilles */
1657 inetntop_sock((struct sockaddr
*)&F
->connect
.hostaddr
,
1658 client_p
->sockhost
, sizeof client_p
->sockhost
);
1660 /* Check the status */
1661 if(status
!= COMM_OK
)
1663 /* COMM_ERR_TIMEOUT wont have an errno associated with it,
1664 * the others will.. --fl
1666 if(status
== COMM_ERR_TIMEOUT
)
1668 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
1669 "Error connecting to %s[%s]: %s",
1671 #ifdef HIDE_SERVERS_IPS
1677 ilog(L_SERVER
, "Error connecting to %s[%s]: %s",
1678 client_p
->name
, client_p
->sockhost
,
1683 errstr
= strerror(rb_get_sockerr(fd
));
1684 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
1685 "Error connecting to %s[%s]: %s (%s)",
1687 #ifdef HIDE_SERVERS_IPS
1692 rb_errstr(status
), errstr
);
1693 ilog(L_SERVER
, "Error connecting to %s[%s]: %s (%s)",
1694 client_p
->name
, client_p
->sockhost
,
1695 rb_errstr(status
), errstr
);
1698 exit_client(client_p
, client_p
, &me
, rb_errstr(status
));
1702 /* COMM_OK, so continue the connection procedure */
1703 /* Get the C/N lines */
1704 if((server_p
= client_p
->localClient
->att_sconf
) == NULL
)
1706 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
, "Lost connect{} block for %s",
1707 get_server_name(client_p
, HIDE_IP
));
1708 exit_client(client_p
, client_p
, &me
, "Lost connect{} block");
1712 /* Next, send the initial handshake */
1713 SetHandshake(client_p
);
1715 /* kludge, if we're not using TS6, dont ever send
1716 * ourselves as being TS6 capable.
1718 if(!EmptyString(server_p
->spasswd
))
1720 sendto_one(client_p
, "PASS %s TS %d :%s",
1721 server_p
->spasswd
, TS_CURRENT
, me
.id
);
1724 /* pass my info to the new server */
1725 send_capabilities(client_p
, default_server_capabs
1726 | (ServerConfCompressed(server_p
) ? CAP_ZIP_SUPPORTED
: 0)
1727 | (ServerConfTb(server_p
) ? CAP_TB
: 0));
1729 sendto_one(client_p
, "SERVER %s 1 :%s%s",
1731 ConfigServerHide
.hidden
? "(H) " : "", me
.info
);
1734 * If we've been marked dead because a send failed, just exit
1735 * here now and save everyone the trouble of us ever existing.
1737 if(IsAnyDead(client_p
))
1739 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
1740 "%s went dead during handshake", client_p
->name
);
1741 exit_client(client_p
, client_p
, &me
, "Went dead during handshake");
1745 /* don't move to serv_list yet -- we haven't sent a burst! */
1747 /* If we get here, we're ok, so lets start reading some data */
1748 read_packet(fd
, client_p
);
1751 #ifndef HAVE_SOCKETPAIR
1753 inet_socketpair(int d
, int type
, int protocol
, int sv
[2])
1755 struct sockaddr_in addr1
, addr2
, addr3
;
1756 int addr3_len
= sizeof(addr3
);
1758 int port_no
= 20000;
1760 if(d
!= AF_INET
|| type
!= SOCK_STREAM
|| protocol
)
1762 errno
= EAFNOSUPPORT
;
1765 if(((sv
[0] = socket(AF_INET
, SOCK_STREAM
, 0)) < 0) || ((sv
[1] = socket(AF_INET
, SOCK_STREAM
, 0)) < 0))
1768 addr1
.sin_port
= htons(port_no
);
1769 addr1
.sin_family
= AF_INET
;
1770 addr1
.sin_addr
.s_addr
= htonl(INADDR_LOOPBACK
);
1771 while ((rc
= bind (sv
[0], (struct sockaddr
*) &addr1
, sizeof (addr1
))) < 0 && errno
== EADDRINUSE
)
1772 addr1
.sin_port
= htons(++port_no
);
1777 if(listen(sv
[0], 1) < 0)
1784 addr2
.sin_port
= htons(port_no
);
1785 addr2
.sin_family
= AF_INET
;
1786 addr2
.sin_addr
.s_addr
= htonl(INADDR_LOOPBACK
);
1787 if(connect (sv
[1], (struct sockaddr
*) &addr2
, sizeof (addr2
)) < 0)
1794 if((fd
= accept(sv
[1], (struct sockaddr
*) &addr3
, &addr3_len
)) < 0)