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>
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... */
65 #define INADDR_NONE ((unsigned int) 0xffffffff)
68 #ifndef HAVE_SOCKETPAIR
69 static int inet_socketpair(int d
, int type
, int protocol
, int sv
[2]);
72 int MaxConnectionCount
= 1;
73 int MaxClientCount
= 1;
74 int refresh_user_links
= 0;
76 static char buf
[BUFSIZE
];
78 static void start_io(struct Client
*server
);
80 static SlinkRplHnd slink_error
;
81 static SlinkRplHnd slink_zipstats
;
83 * list of recognized server capabilities. "TS" is not on the list
84 * because all servers that we talk to already do TS, and the kludged
85 * extra argument to "PASS" takes care of checking that. -orabidoo
87 struct Capability captab
[] = {
95 { "KNOCK", CAP_KNOCK
},
98 { "UNKLN", CAP_UNKLN
},
99 { "CLUSTER", CAP_CLUSTER
},
100 { "ENCAP", CAP_ENCAP
},
101 { "SERVICES", CAP_SERVICE
},
102 { "RSFNC", CAP_RSFNC
},
103 { "SAVE", CAP_SAVE
},
104 { "EUID", CAP_EUID
},
108 struct SlinkRplDef slinkrpltab
[] = {
109 {SLINKRPL_ERROR
, slink_error
, SLINKRPL_FLAG_DATA
},
110 {SLINKRPL_ZIPSTATS
, slink_zipstats
, SLINKRPL_FLAG_DATA
},
114 static int fork_server(struct Client
*client_p
);
116 static CNCB serv_connect_callback
;
119 slink_error(unsigned int rpl
, unsigned int len
, unsigned char *data
, struct Client
*server_p
)
121 char squitreason
[256];
123 s_assert(rpl
== SLINKRPL_ERROR
);
126 data
[len
- 1] = '\0';
128 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "SlinkError for %s: %s", server_p
->name
, data
);
129 snprintf(squitreason
, sizeof squitreason
, "servlink error: %s", data
);
130 exit_client(server_p
, server_p
, &me
, squitreason
);
134 slink_zipstats(unsigned int rpl
, unsigned int len
, unsigned char *data
, struct Client
*server_p
)
136 struct ZipStats zipstats
;
137 u_int32_t in
= 0, in_wire
= 0, out
= 0, out_wire
= 0;
140 s_assert(rpl
== SLINKRPL_ZIPSTATS
);
142 s_assert(IsCapable(server_p
, CAP_ZIP
));
144 /* Yes, it needs to be done this way, no we cannot let the compiler
145 * work with the pointer to the structure. This works around a GCC
146 * bug on SPARC that affects all versions at the time of this writing.
147 * I will feed you to the creatures living in RMS's beard if you do
148 * not leave this as is, without being sure that you are not causing
149 * regression for most of our installed SPARC base.
150 * -jmallett, 04/27/2002
152 memcpy(&zipstats
, &server_p
->localClient
->zipstats
, sizeof(struct ZipStats
));
154 in
|= (data
[i
++] << 24);
155 in
|= (data
[i
++] << 16);
156 in
|= (data
[i
++] << 8);
159 in_wire
|= (data
[i
++] << 24);
160 in_wire
|= (data
[i
++] << 16);
161 in_wire
|= (data
[i
++] << 8);
162 in_wire
|= (data
[i
++]);
164 out
|= (data
[i
++] << 24);
165 out
|= (data
[i
++] << 16);
166 out
|= (data
[i
++] << 8);
169 out_wire
|= (data
[i
++] << 24);
170 out_wire
|= (data
[i
++] << 16);
171 out_wire
|= (data
[i
++] << 8);
172 out_wire
|= (data
[i
++]);
175 zipstats
.inK
+= zipstats
.in
>> 10;
176 zipstats
.in
&= 0x03ff;
178 zipstats
.in_wire
+= in_wire
;
179 zipstats
.inK_wire
+= zipstats
.in_wire
>> 10;
180 zipstats
.in_wire
&= 0x03ff;
183 zipstats
.outK
+= zipstats
.out
>> 10;
184 zipstats
.out
&= 0x03ff;
186 zipstats
.out_wire
+= out_wire
;
187 zipstats
.outK_wire
+= zipstats
.out_wire
>> 10;
188 zipstats
.out_wire
&= 0x03ff;
192 (((double) (zipstats
.inK
- zipstats
.inK_wire
) /
193 (double) zipstats
.inK
) * 100.00);
195 zipstats
.in_ratio
= 0;
197 if(zipstats
.outK
> 0)
199 (((double) (zipstats
.outK
- zipstats
.outK_wire
) /
200 (double) zipstats
.outK
) * 100.00);
202 zipstats
.out_ratio
= 0;
204 memcpy(&server_p
->localClient
->zipstats
, &zipstats
, sizeof(struct ZipStats
));
208 collect_zipstats(void *unused
)
211 struct Client
*target_p
;
213 DLINK_FOREACH(ptr
, serv_list
.head
)
215 target_p
= ptr
->data
;
216 if(IsCapable(target_p
, CAP_ZIP
))
218 /* only bother if we haven't already got something queued... */
219 if(!target_p
->localClient
->slinkq
)
221 target_p
->localClient
->slinkq
= MyMalloc(1); /* sigh.. */
222 target_p
->localClient
->slinkq
[0] = SLINKCMD_ZIPSTATS
;
223 target_p
->localClient
->slinkq_ofs
= 0;
224 target_p
->localClient
->slinkq_len
= 1;
225 send_queued_slink_write(target_p
->localClient
->ctrlfd
, target_p
);
232 * hunt_server - Do the basic thing in delivering the message (command)
233 * across the relays to the specific server (server) for
236 * Note: The command is a format string and *MUST* be
237 * of prefixed style (e.g. ":%s COMMAND %s ...").
238 * Command can have only max 8 parameters.
240 * server parv[server] is the parameter identifying the
244 * parv[server] is replaced with the pointer to the
245 * real servername from the matched client (I'm lazy
248 * returns: (see #defines)
251 hunt_server(struct Client
*client_p
, struct Client
*source_p
,
252 const char *command
, int server
, int parc
, const char *parv
[])
254 struct Client
*target_p
;
261 * Assume it's me, if no server
263 if(parc
<= server
|| EmptyString(parv
[server
]) ||
264 match(parv
[server
], me
.name
) || (strcmp(parv
[server
], me
.id
) == 0))
265 return (HUNTED_ISME
);
267 new = LOCAL_COPY(parv
[server
]);
270 * These are to pickup matches that would cause the following
271 * message to go in the wrong direction while doing quick fast
272 * non-matching lookups.
274 if(MyClient(source_p
))
275 target_p
= find_named_client(new);
277 target_p
= find_client(new);
280 if(target_p
->from
== source_p
->from
&& !MyConnect(target_p
))
284 wilds
= (strchr(new, '?') || strchr(new, '*'));
287 * Again, if there are no wild cards involved in the server
288 * name, use the hash lookup
294 if(MyClient(source_p
) || !IsDigit(parv
[server
][0]))
295 sendto_one_numeric(source_p
, ERR_NOSUCHSERVER
,
296 form_str(ERR_NOSUCHSERVER
),
298 return (HUNTED_NOSUCH
);
304 DLINK_FOREACH(ptr
, global_client_list
.head
)
306 if(match(new, ((struct Client
*) (ptr
->data
))->name
))
308 target_p
= ptr
->data
;
317 if(!IsRegistered(target_p
))
319 sendto_one_numeric(source_p
, ERR_NOSUCHSERVER
,
320 form_str(ERR_NOSUCHSERVER
),
322 return HUNTED_NOSUCH
;
325 if(IsMe(target_p
) || MyClient(target_p
))
329 parv
[server
] = get_id(target_p
, target_p
);
331 sendto_one(target_p
, command
, get_id(source_p
, target_p
),
332 parv
[1], parv
[2], parv
[3], parv
[4], parv
[5], parv
[6], parv
[7], parv
[8]);
334 return (HUNTED_PASS
);
337 if(MyClient(source_p
) || !IsDigit(parv
[server
][0]))
338 sendto_one_numeric(source_p
, ERR_NOSUCHSERVER
,
339 form_str(ERR_NOSUCHSERVER
), parv
[server
]);
340 return (HUNTED_NOSUCH
);
344 * try_connections - scan through configuration and try new connections.
345 * Returns the calendar time when the next call to this
346 * function should be made latest. (No harm done if this
347 * is called earlier or later...)
350 try_connections(void *unused
)
352 struct Client
*client_p
;
353 struct server_conf
*server_p
= NULL
;
354 struct server_conf
*tmp_p
;
357 int connecting
= FALSE
;
361 DLINK_FOREACH(ptr
, server_conf_list
.head
)
365 if(ServerConfIllegal(tmp_p
) || !ServerConfAutoconn(tmp_p
))
368 cltmp
= tmp_p
->class;
371 * Skip this entry if the use of it is still on hold until
372 * future. Otherwise handle this entry (and set it on hold
373 * until next time). Will reset only hold times, if already
374 * made one successfull connection... [this algorithm is
375 * a bit fuzzy... -- msa >;) ]
377 if(tmp_p
->hold
> CurrentTime
)
379 if(next
> tmp_p
->hold
|| next
== 0)
384 confrq
= get_con_freq(cltmp
);
385 tmp_p
->hold
= CurrentTime
+ confrq
;
388 * Found a CONNECT config with port specified, scan clients
389 * and see if this server is already connected?
391 client_p
= find_server(NULL
, tmp_p
->name
);
393 if(!client_p
&& (CurrUsers(cltmp
) < MaxUsers(cltmp
)) && !connecting
)
397 /* We connect only one at time... */
401 if((next
> tmp_p
->hold
) || (next
== 0))
405 /* TODO: change this to set active flag to 0 when added to event! --Habeeb */
406 if(GlobalSetOptions
.autoconn
== 0)
412 /* move this connect entry to end.. */
413 dlinkDelete(&server_p
->node
, &server_conf_list
);
414 dlinkAddTail(server_p
, &server_p
->node
, &server_conf_list
);
417 * We used to only print this if serv_connect() actually
418 * suceeded, but since comm_tcp_connect() can call the callback
419 * immediately if there is an error, we were getting error messages
420 * in the wrong order. SO, we just print out the activated line,
421 * and let serv_connect() / serv_connect_callback() print an
422 * error afterwards if it fails.
425 #ifndef HIDE_SERVERS_IPS
426 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
427 "Connection to %s[%s] activated.",
428 server_p
->name
, server_p
->host
);
430 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
431 "Connection to %s activated",
435 serv_connect(server_p
, 0);
439 check_server(const char *name
, struct Client
*client_p
)
441 struct server_conf
*server_p
= NULL
;
442 struct server_conf
*tmp_p
;
446 s_assert(NULL
!= client_p
);
450 if(!(client_p
->localClient
->passwd
))
453 if(strlen(name
) > HOSTLEN
)
456 DLINK_FOREACH(ptr
, server_conf_list
.head
)
460 if(ServerConfIllegal(tmp_p
))
463 if(!match(tmp_p
->name
, name
))
468 /* XXX: Fix me for IPv6 */
469 /* XXX sockhost is the IPv4 ip as a string */
470 if(match(tmp_p
->host
, client_p
->host
) ||
471 match(tmp_p
->host
, client_p
->sockhost
))
475 if(ServerConfEncrypted(tmp_p
))
477 if(!strcmp(tmp_p
->passwd
, crypt(client_p
->localClient
->passwd
,
484 else if(!strcmp(tmp_p
->passwd
, client_p
->localClient
->passwd
))
495 attach_server_conf(client_p
, server_p
);
497 /* clear ZIP/TB if they support but we dont want them */
499 if(!ServerConfCompressed(server_p
))
501 ClearCap(client_p
, CAP_ZIP
);
503 if(!ServerConfTb(server_p
))
504 ClearCap(client_p
, CAP_TB
);
512 * inputs - Client pointer to send to
513 * - int flag of capabilities that this server has
515 * side effects - send the CAPAB line to a server -orabidoo
519 send_capabilities(struct Client
*client_p
, int cap_can_send
)
521 struct Capability
*cap
;
522 char msgbuf
[BUFSIZE
];
528 for (cap
= captab
; cap
->name
; ++cap
)
530 if(cap
->cap
& cap_can_send
)
532 tl
= ircsprintf(t
, "%s ", cap
->name
);
540 sendto_one(client_p
, "CAPAB :%s", msgbuf
);
545 * input - client to burst to, channel name, list to burst, mode flag
547 * side effects - client is sent a list of +b, or +e, or +I modes
550 burst_modes_TS5(struct Client
*client_p
, char *chname
, dlink_list
*list
, char flag
)
554 char mbuf
[MODEBUFLEN
];
563 mlen
= ircsprintf(buf
, ":%s MODE %s +", me
.name
, chname
);
569 DLINK_FOREACH(ptr
, list
->head
)
572 tlen
= strlen(banptr
->banstr
) + 3;
575 if(tlen
> MODEBUFLEN
)
578 if((count
>= MAXMODEPARAMS
) || ((cur_len
+ tlen
+ 2) > (BUFSIZE
- 3)))
580 sendto_one(client_p
, "%s%s %s", buf
, mbuf
, pbuf
);
590 pp
+= ircsprintf(pp
, "%s ", banptr
->banstr
);
596 sendto_one(client_p
, "%s%s %s", buf
, mbuf
, pbuf
);
601 * input - client to burst to, channel name, list to burst, mode flag
603 * side effects - client is sent a list of +b, +e, or +I modes
606 burst_modes_TS6(struct Client
*client_p
, struct Channel
*chptr
,
607 dlink_list
*list
, char flag
)
616 cur_len
= mlen
= ircsprintf(buf
, ":%s BMASK %ld %s %c :",
617 me
.id
, (long) chptr
->channelts
, chptr
->chname
, flag
);
620 DLINK_FOREACH(ptr
, list
->head
)
624 tlen
= strlen(banptr
->banstr
) + 1;
627 if(cur_len
+ tlen
> BUFSIZE
- 3)
629 /* the one we're trying to send doesnt fit at all! */
636 /* chop off trailing space and send.. */
638 sendto_one(client_p
, "%s", buf
);
643 ircsprintf(t
, "%s ", banptr
->banstr
);
648 /* cant ever exit the loop above without having modified buf,
649 * chop off trailing space and send.
652 sendto_one(client_p
, "%s", buf
);
658 * inputs - client (server) to send nick towards
659 * - client to send nick for
661 * side effects - NICK message is sent towards given client_p
664 burst_TS5(struct Client
*client_p
)
666 static char ubuf
[12];
667 struct Client
*target_p
;
668 struct Channel
*chptr
;
669 struct membership
*msptr
;
670 hook_data_client hclientinfo
;
671 hook_data_channel hchaninfo
;
678 hclientinfo
.client
= hchaninfo
.client
= client_p
;
680 DLINK_FOREACH(ptr
, global_client_list
.head
)
682 target_p
= ptr
->data
;
684 if(!IsPerson(target_p
))
687 send_umode(NULL
, target_p
, 0, 0, ubuf
);
694 sendto_one(client_p
, "NICK %s %d %ld %s %s %s %s :%s",
695 target_p
->name
, target_p
->hopcount
+ 1,
696 (long) target_p
->tsinfo
, ubuf
,
697 target_p
->username
, target_p
->host
,
698 target_p
->servptr
->name
, target_p
->info
);
700 if(IsDynSpoof(target_p
))
701 sendto_one(client_p
, ":%s ENCAP * REALHOST %s",
702 target_p
->name
, target_p
->orighost
);
703 if(!EmptyString(target_p
->user
->suser
))
704 sendto_one(client_p
, ":%s ENCAP * LOGIN %s",
705 target_p
->name
, target_p
->user
->suser
);
707 if(ConfigFileEntry
.burst_away
&& !EmptyString(target_p
->user
->away
))
708 sendto_one(client_p
, ":%s AWAY :%s",
709 target_p
->name
, target_p
->user
->away
);
711 hclientinfo
.target
= target_p
;
712 call_hook(h_burst_client
, &hclientinfo
);
715 DLINK_FOREACH(ptr
, global_channel_list
.head
)
719 if(*chptr
->chname
!= '#')
722 cur_len
= mlen
= ircsprintf(buf
, ":%s SJOIN %ld %s %s :", me
.name
,
723 (long) chptr
->channelts
, chptr
->chname
,
724 channel_modes(chptr
, client_p
));
728 DLINK_FOREACH(uptr
, chptr
->members
.head
)
732 tlen
= strlen(msptr
->client_p
->name
) + 1;
738 if(cur_len
+ tlen
>= BUFSIZE
- 3)
742 sendto_one(client_p
, "%s", buf
);
747 ircsprintf(t
, "%s%s ", find_channel_status(msptr
, 1),
748 msptr
->client_p
->name
);
754 if (dlink_list_length(&chptr
->members
) > 0)
756 /* remove trailing space */
760 sendto_one(client_p
, "%s", buf
);
762 burst_modes_TS5(client_p
, chptr
->chname
, &chptr
->banlist
, 'b');
764 if(IsCapable(client_p
, CAP_EX
))
765 burst_modes_TS5(client_p
, chptr
->chname
, &chptr
->exceptlist
, 'e');
767 if(IsCapable(client_p
, CAP_IE
))
768 burst_modes_TS5(client_p
, chptr
->chname
, &chptr
->invexlist
, 'I');
770 burst_modes_TS5(client_p
, chptr
->chname
, &chptr
->quietlist
, 'q');
772 if(IsCapable(client_p
, CAP_TB
) && chptr
->topic
!= NULL
)
773 sendto_one(client_p
, ":%s TB %s %ld %s%s:%s",
774 me
.name
, chptr
->chname
, (long) chptr
->topic_time
,
775 ConfigChannel
.burst_topicwho
? chptr
->topic_info
: "",
776 ConfigChannel
.burst_topicwho
? " " : "",
779 hchaninfo
.chptr
= chptr
;
780 call_hook(h_burst_channel
, &hchaninfo
);
783 hclientinfo
.target
= NULL
;
784 call_hook(h_burst_finished
, &hclientinfo
);
790 * inputs - client (server) to send nick towards
791 * - client to send nick for
793 * side effects - NICK message is sent towards given client_p
796 burst_TS6(struct Client
*client_p
)
798 static char ubuf
[12];
799 struct Client
*target_p
;
800 struct Channel
*chptr
;
801 struct membership
*msptr
;
802 hook_data_client hclientinfo
;
803 hook_data_channel hchaninfo
;
810 hclientinfo
.client
= hchaninfo
.client
= client_p
;
812 DLINK_FOREACH(ptr
, global_client_list
.head
)
814 target_p
= ptr
->data
;
816 if(!IsPerson(target_p
))
819 send_umode(NULL
, target_p
, 0, 0, ubuf
);
826 if(has_id(target_p
) && IsCapable(client_p
, CAP_EUID
))
827 sendto_one(client_p
, ":%s EUID %s %d %ld %s %s %s %s %s %s %s :%s",
828 target_p
->servptr
->id
, target_p
->name
,
829 target_p
->hopcount
+ 1,
830 (long) target_p
->tsinfo
, ubuf
,
831 target_p
->username
, target_p
->host
,
832 IsIPSpoof(target_p
) ? "0" : target_p
->sockhost
,
834 IsDynSpoof(target_p
) ? target_p
->orighost
: "*",
835 EmptyString(target_p
->user
->suser
) ? "*" : target_p
->user
->suser
,
837 else if(has_id(target_p
))
838 sendto_one(client_p
, ":%s UID %s %d %ld %s %s %s %s %s :%s",
839 target_p
->servptr
->id
, target_p
->name
,
840 target_p
->hopcount
+ 1,
841 (long) target_p
->tsinfo
, ubuf
,
842 target_p
->username
, target_p
->host
,
843 IsIPSpoof(target_p
) ? "0" : target_p
->sockhost
,
844 target_p
->id
, target_p
->info
);
846 sendto_one(client_p
, "NICK %s %d %ld %s %s %s %s :%s",
848 target_p
->hopcount
+ 1,
849 (long) target_p
->tsinfo
,
851 target_p
->username
, target_p
->host
,
852 target_p
->servptr
->name
, target_p
->info
);
854 if(!has_id(target_p
) || !IsCapable(client_p
, CAP_EUID
))
856 if(IsDynSpoof(target_p
))
857 sendto_one(client_p
, ":%s ENCAP * REALHOST %s",
858 use_id(target_p
), target_p
->orighost
);
859 if(!EmptyString(target_p
->user
->suser
))
860 sendto_one(client_p
, ":%s ENCAP * LOGIN %s",
861 use_id(target_p
), target_p
->user
->suser
);
864 if(ConfigFileEntry
.burst_away
&& !EmptyString(target_p
->user
->away
))
865 sendto_one(client_p
, ":%s AWAY :%s",
867 target_p
->user
->away
);
869 hclientinfo
.target
= target_p
;
870 call_hook(h_burst_client
, &hclientinfo
);
873 DLINK_FOREACH(ptr
, global_channel_list
.head
)
877 if(*chptr
->chname
!= '#')
880 cur_len
= mlen
= ircsprintf(buf
, ":%s SJOIN %ld %s %s :", me
.id
,
881 (long) chptr
->channelts
, chptr
->chname
,
882 channel_modes(chptr
, client_p
));
886 DLINK_FOREACH(uptr
, chptr
->members
.head
)
890 tlen
= strlen(use_id(msptr
->client_p
)) + 1;
896 if(cur_len
+ tlen
>= BUFSIZE
- 3)
899 sendto_one(client_p
, "%s", buf
);
904 ircsprintf(t
, "%s%s ", find_channel_status(msptr
, 1),
905 use_id(msptr
->client_p
));
911 if (dlink_list_length(&chptr
->members
) > 0)
913 /* remove trailing space */
916 sendto_one(client_p
, "%s", buf
);
918 if(dlink_list_length(&chptr
->banlist
) > 0)
919 burst_modes_TS6(client_p
, chptr
, &chptr
->banlist
, 'b');
921 if(IsCapable(client_p
, CAP_EX
) &&
922 dlink_list_length(&chptr
->exceptlist
) > 0)
923 burst_modes_TS6(client_p
, chptr
, &chptr
->exceptlist
, 'e');
925 if(IsCapable(client_p
, CAP_IE
) &&
926 dlink_list_length(&chptr
->invexlist
) > 0)
927 burst_modes_TS6(client_p
, chptr
, &chptr
->invexlist
, 'I');
929 if(dlink_list_length(&chptr
->quietlist
) > 0)
930 burst_modes_TS6(client_p
, chptr
, &chptr
->quietlist
, 'q');
932 if(IsCapable(client_p
, CAP_TB
) && chptr
->topic
!= NULL
)
933 sendto_one(client_p
, ":%s TB %s %ld %s%s:%s",
934 me
.id
, chptr
->chname
, (long) chptr
->topic_time
,
935 ConfigChannel
.burst_topicwho
? chptr
->topic_info
: "",
936 ConfigChannel
.burst_topicwho
? " " : "",
939 hchaninfo
.chptr
= chptr
;
940 call_hook(h_burst_channel
, &hchaninfo
);
943 hclientinfo
.target
= NULL
;
944 call_hook(h_burst_finished
, &hclientinfo
);
948 * show_capabilities - show current server capabilities
950 * inputs - pointer to an struct Client
951 * output - pointer to static string
952 * side effects - build up string representing capabilities of server listed
955 show_capabilities(struct Client
*target_p
)
957 static char msgbuf
[BUFSIZE
];
958 struct Capability
*cap
;
963 tl
= ircsprintf(msgbuf
, "TS ");
966 if(!IsServer(target_p
) || !target_p
->serv
->caps
) /* short circuit if no caps */
972 for (cap
= captab
; cap
->cap
; ++cap
)
974 if(cap
->cap
& target_p
->serv
->caps
)
976 tl
= ircsprintf(t
, "%s ", cap
->name
);
990 * inputs - pointer to a struct Client
995 server_estab(struct Client
*client_p
)
997 struct Client
*target_p
;
998 struct server_conf
*server_p
;
999 hook_data_client hdata
;
1003 s_assert(NULL
!= client_p
);
1004 if(client_p
== NULL
)
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 sendto_one(client_p
, "PASS %s TS %d :%s",
1052 server_p
->spasswd
, TS_CURRENT
, me
.id
);
1055 /* pass info to new server */
1056 send_capabilities(client_p
, default_server_capabs
1057 | (ServerConfCompressed(server_p
) ? CAP_ZIP_SUPPORTED
: 0)
1058 | (ServerConfTb(server_p
) ? CAP_TB
: 0));
1060 sendto_one(client_p
, "SERVER %s 1 :%s%s",
1062 ConfigServerHide
.hidden
? "(H) " : "",
1063 (me
.info
[0]) ? (me
.info
) : "IRCers United");
1066 if(!comm_set_buffers(client_p
->localClient
->F
->fd
, READBUF_SIZE
))
1067 report_error(SETBUF_ERROR_MSG
,
1068 get_server_name(client_p
, SHOW_IP
),
1069 log_client_name(client_p
, SHOW_IP
), errno
);
1071 /* Hand the server off to servlink now */
1072 if(IsCapable(client_p
, CAP_ZIP
))
1074 if(fork_server(client_p
) < 0)
1076 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
1077 "Warning: fork failed for server %s -- check servlink_path (%s)",
1078 get_server_name(client_p
, HIDE_IP
),
1079 ConfigFileEntry
.servlink_path
);
1080 return exit_client(client_p
, client_p
, client_p
, "Fork failed");
1083 SetServlink(client_p
);
1086 sendto_one(client_p
, "SVINFO %d %d 0 :%ld", TS_CURRENT
, TS_MIN
, CurrentTime
);
1088 client_p
->servptr
= &me
;
1090 if(IsAnyDead(client_p
))
1091 return CLIENT_EXITED
;
1093 SetServer(client_p
);
1095 /* Update the capability combination usage counts */
1096 set_chcap_usage_counts(client_p
);
1098 dlinkAdd(client_p
, &client_p
->lnode
, &me
.serv
->servers
);
1099 del_unknown_ip(client_p
);
1100 dlinkMoveNode(&client_p
->localClient
->tnode
, &unknown_list
, &serv_list
);
1101 dlinkAddTailAlloc(client_p
, &global_serv_list
);
1103 if(has_id(client_p
))
1104 add_to_id_hash(client_p
->id
, client_p
);
1106 add_to_client_hash(client_p
->name
, client_p
);
1107 /* doesnt duplicate client_p->serv if allocated this struct already */
1108 make_server(client_p
);
1110 client_p
->serv
->caps
= client_p
->localClient
->caps
;
1112 if(client_p
->localClient
->fullcaps
)
1114 DupString(client_p
->serv
->fullcaps
, client_p
->localClient
->fullcaps
);
1115 MyFree(client_p
->localClient
->fullcaps
);
1116 client_p
->localClient
->fullcaps
= NULL
;
1119 client_p
->serv
->nameinfo
= scache_connect(client_p
->name
, client_p
->info
, IsHidden(client_p
));
1120 client_p
->localClient
->firsttime
= CurrentTime
;
1121 /* fixing eob timings.. -gnp */
1123 if((dlink_list_length(&lclient_list
) + dlink_list_length(&serv_list
)) >
1124 (unsigned long)MaxConnectionCount
)
1125 MaxConnectionCount
= dlink_list_length(&lclient_list
) +
1126 dlink_list_length(&serv_list
);
1128 /* Show the real host/IP to admins */
1129 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1130 "Link with %s established: (%s) link",
1131 get_server_name(client_p
, SHOW_IP
),
1132 show_capabilities(client_p
));
1134 ilog(L_SERVER
, "Link with %s established: (%s) link",
1135 log_client_name(client_p
, SHOW_IP
), show_capabilities(client_p
));
1138 hdata
.target
= client_p
;
1139 call_hook(h_server_introduced
, &hdata
);
1141 if(HasServlink(client_p
))
1143 /* we won't overflow FD_DESC_SZ here, as it can hold
1144 * client_p->name + 64
1146 comm_note(client_p
->localClient
->F
->fd
, "slink data: %s", client_p
->name
);
1147 comm_note(client_p
->localClient
->ctrlfd
, "slink ctrl: %s", client_p
->name
);
1150 comm_note(client_p
->localClient
->F
->fd
, "Server: %s", client_p
->name
);
1153 ** Old sendto_serv_but_one() call removed because we now
1154 ** need to send different names to different servers
1155 ** (domain name matching) Send new server to other servers.
1157 DLINK_FOREACH(ptr
, serv_list
.head
)
1159 target_p
= ptr
->data
;
1161 if(target_p
== client_p
)
1164 if(has_id(target_p
) && has_id(client_p
))
1166 sendto_one(target_p
, ":%s SID %s 2 %s :%s%s",
1167 me
.id
, client_p
->name
, client_p
->id
,
1168 IsHidden(client_p
) ? "(H) " : "", client_p
->info
);
1170 if(IsCapable(target_p
, CAP_ENCAP
) &&
1171 !EmptyString(client_p
->serv
->fullcaps
))
1172 sendto_one(target_p
, ":%s ENCAP * GCAP :%s",
1173 client_p
->id
, client_p
->serv
->fullcaps
);
1177 sendto_one(target_p
, ":%s SERVER %s 2 :%s%s",
1178 me
.name
, client_p
->name
,
1179 IsHidden(client_p
) ? "(H) " : "", client_p
->info
);
1181 if(IsCapable(target_p
, CAP_ENCAP
) &&
1182 !EmptyString(client_p
->serv
->fullcaps
))
1183 sendto_one(target_p
, ":%s ENCAP * GCAP :%s",
1184 client_p
->name
, client_p
->serv
->fullcaps
);
1189 ** Pass on my client information to the new server
1191 ** First, pass only servers (idea is that if the link gets
1192 ** cancelled beacause the server was already there,
1193 ** there are no NICK's to be cancelled...). Of course,
1194 ** if cancellation occurs, all this info is sent anyway,
1195 ** and I guess the link dies when a read is attempted...? --msa
1197 ** Note: Link cancellation to occur at this point means
1198 ** that at least two servers from my fragment are building
1199 ** up connection this other fragment at the same time, it's
1200 ** a race condition, not the normal way of operation...
1202 ** ALSO NOTE: using the get_client_name for server names--
1203 ** see previous *WARNING*!!! (Also, original inpath
1206 DLINK_FOREACH(ptr
, global_serv_list
.head
)
1208 target_p
= ptr
->data
;
1210 /* target_p->from == target_p for target_p == client_p */
1211 if(IsMe(target_p
) || target_p
->from
== client_p
)
1214 /* presumption, if target has an id, so does its uplink */
1215 if(has_id(client_p
) && has_id(target_p
))
1216 sendto_one(client_p
, ":%s SID %s %d %s :%s%s",
1217 target_p
->servptr
->id
, target_p
->name
,
1218 target_p
->hopcount
+ 1, target_p
->id
,
1219 IsHidden(target_p
) ? "(H) " : "", target_p
->info
);
1221 sendto_one(client_p
, ":%s SERVER %s %d :%s%s",
1222 target_p
->servptr
->name
,
1223 target_p
->name
, target_p
->hopcount
+ 1,
1224 IsHidden(target_p
) ? "(H) " : "", target_p
->info
);
1226 if(IsCapable(client_p
, CAP_ENCAP
) &&
1227 !EmptyString(target_p
->serv
->fullcaps
))
1228 sendto_one(client_p
, ":%s ENCAP * GCAP :%s",
1229 get_id(target_p
, client_p
),
1230 target_p
->serv
->fullcaps
);
1233 if(has_id(client_p
))
1234 burst_TS6(client_p
);
1236 burst_TS5(client_p
);
1238 /* Always send a PING after connect burst is done */
1239 sendto_one(client_p
, "PING :%s", get_id(&me
, client_p
));
1241 free_pre_client(client_p
);
1247 start_io(struct Client
*server
)
1249 unsigned char *iobuf
;
1254 iobuf
= MyMalloc(256); /* XXX: This seems arbitrary. Perhaps make it IRCD_BUFSIZE? --nenolod */
1256 if(IsCapable(server
, CAP_ZIP
))
1259 iobuf
[c
++] = SLINKCMD_SET_ZIP_OUT_LEVEL
;
1260 iobuf
[c
++] = 0; /* | */
1261 iobuf
[c
++] = 1; /* \ len is 1 */
1262 iobuf
[c
++] = ConfigFileEntry
.compression_level
;
1263 iobuf
[c
++] = SLINKCMD_START_ZIP_IN
;
1264 iobuf
[c
++] = SLINKCMD_START_ZIP_OUT
;
1267 while (MyConnect(server
))
1271 iobuf
= MyRealloc(iobuf
, (c
+ READBUF_SIZE
+ 64));
1273 /* store data in c+3 to allow for SLINKCMD_INJECT_RECVQ and len u16 */
1274 linelen
= linebuf_get(&server
->localClient
->buf_recvq
, (char *) (iobuf
+ c
+ 3), READBUF_SIZE
, LINEBUF_PARTIAL
, LINEBUF_RAW
); /* include partial lines */
1278 iobuf
[c
++] = SLINKCMD_INJECT_RECVQ
;
1279 iobuf
[c
++] = (linelen
>> 8);
1280 iobuf
[c
++] = (linelen
& 0xff);
1287 while (MyConnect(server
))
1291 iobuf
= MyRealloc(iobuf
, (c
+ BUF_DATA_SIZE
+ 64));
1293 /* store data in c+3 to allow for SLINKCMD_INJECT_RECVQ and len u16 */
1294 linelen
= linebuf_get(&server
->localClient
->buf_sendq
,
1295 (char *) (iobuf
+ c
+ 3), READBUF_SIZE
,
1296 LINEBUF_PARTIAL
, LINEBUF_PARSED
); /* include partial lines */
1300 iobuf
[c
++] = SLINKCMD_INJECT_SENDQ
;
1301 iobuf
[c
++] = (linelen
>> 8);
1302 iobuf
[c
++] = (linelen
& 0xff);
1310 iobuf
[c
++] = SLINKCMD_INIT
;
1312 server
->localClient
->slinkq
= iobuf
;
1313 server
->localClient
->slinkq_ofs
= 0;
1314 server
->localClient
->slinkq_len
= c
;
1316 /* schedule a write */
1317 send_queued_slink_write(server
->localClient
->ctrlfd
, server
);
1323 * inputs - struct Client *server
1324 * output - success: 0 / failure: -1
1325 * side effect - fork, and exec SERVLINK to handle this connection
1328 fork_server(struct Client
*server
)
1337 char slink
[] = "-slink";
1341 #ifdef HAVE_SOCKETPAIR
1342 if(socketpair(AF_UNIX
, SOCK_STREAM
, 0, ctrl_fds
) < 0)
1344 if(inet_socketpair(AF_INET
,SOCK_STREAM
, 0, ctrl_fds
) < 0)
1351 #ifdef HAVE_SOCKETPAIR
1352 if(socketpair(AF_UNIX
, SOCK_STREAM
, 0, data_fds
) < 0)
1354 if(inet_socketpair(AF_INET
,SOCK_STREAM
, 0, data_fds
) < 0)
1360 if((ret
= vfork()) < 0)
1362 if((ret
= fork()) < 0)
1367 int maxconn
= comm_get_maxconnections();
1369 /* set our fds as non blocking and close everything else */
1370 for (i
= 0; i
< maxconn
; i
++)
1374 if((i
== ctrl_fds
[1]) || (i
== data_fds
[1]) || (i
== server
->localClient
->F
->fd
))
1381 if(i
> 2) /* don't close std* */
1387 ircsnprintf(fd_str
[0], sizeof(fd_str
[0]), "%d", ctrl_fds
[1]);
1388 ircsnprintf(fd_str
[1], sizeof(fd_str
[1]), "%d", data_fds
[1]);
1389 ircsnprintf(fd_str
[2], sizeof(fd_str
[2]), "%d", server
->localClient
->F
->fd
);
1390 kid_argv
[0] = slink
;
1391 kid_argv
[1] = fd_str
[0];
1392 kid_argv
[2] = fd_str
[1];
1393 kid_argv
[3] = fd_str
[2];
1396 /* exec servlink program */
1397 execv(ConfigFileEntry
.servlink_path
, kid_argv
);
1399 /* We're still here, abort. */
1404 comm_close(server
->localClient
->F
->fd
);
1406 /* close the childs end of the pipes */
1410 s_assert(server
->localClient
);
1411 server
->localClient
->ctrlfd
= ctrl_fds
[0];
1412 server
->localClient
->F
= comm_add_fd(data_fds
[0]);
1414 if(!comm_set_nb(server
->localClient
->F
->fd
))
1416 report_error(NONB_ERROR_MSG
,
1417 get_server_name(server
, SHOW_IP
),
1418 log_client_name(server
, SHOW_IP
),
1422 if(!comm_set_nb(server
->localClient
->ctrlfd
))
1424 report_error(NONB_ERROR_MSG
,
1425 get_server_name(server
, SHOW_IP
),
1426 log_client_name(server
, SHOW_IP
),
1430 comm_open(server
->localClient
->ctrlfd
, FD_SOCKET
, NULL
);
1431 comm_open(server
->localClient
->F
->fd
, FD_SOCKET
, NULL
);
1433 read_ctrl_packet(server
->localClient
->ctrlfd
, server
);
1434 read_packet(server
->localClient
->F
->fd
, server
);
1440 /* this is ugly, but nicer than repeating
1441 * about 50 close() statements everywhre... */
1450 * New server connection code
1451 * Based upon the stuff floating about in s_bsd.c
1456 * serv_connect() - initiate a server connection
1458 * inputs - pointer to conf
1459 * - pointer to client doing the connet
1463 * This code initiates a connection to a server. It first checks to make
1464 * sure the given server exists. If this is the case, it creates a socket,
1465 * creates a client, saves the socket information in the client, and
1466 * initiates a connection to the server through comm_connect_tcp(). The
1467 * completion of this goes through serv_completed_connection().
1469 * We return 1 if the connection is attempted, since we don't know whether
1470 * it suceeded or not, and 0 if it fails in here somewhere.
1473 serv_connect(struct server_conf
*server_p
, struct Client
*by
)
1475 struct Client
*client_p
;
1476 struct irc_sockaddr_storage myipnum
;
1478 char vhoststr
[HOSTIPLEN
];
1480 s_assert(server_p
!= NULL
);
1481 if(server_p
== NULL
)
1485 * Make sure this server isn't already connected
1487 if((client_p
= find_server(NULL
, server_p
->name
)))
1489 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1490 "Server %s already present from %s",
1491 server_p
->name
, get_server_name(client_p
, SHOW_IP
));
1492 if(by
&& IsPerson(by
) && !MyClient(by
))
1493 sendto_one_notice(by
, ":Server %s already present from %s",
1494 server_p
->name
, get_server_name(client_p
, SHOW_IP
));
1498 /* create a socket for the server connection */
1499 if((fd
= comm_socket(server_p
->aftype
, SOCK_STREAM
, 0, NULL
)) < 0)
1501 /* Eek, failure to create the socket */
1502 report_error("opening stream socket to %s: %s",
1503 server_p
->name
, server_p
->name
, errno
);
1507 /* servernames are always guaranteed under HOSTLEN chars */
1508 comm_note(fd
, "Server: %s", server_p
->name
);
1510 /* Create a local client */
1511 client_p
= make_client(NULL
);
1513 /* Copy in the server, hostname, fd
1514 * The sockhost may be a hostname, this will be corrected later
1517 strlcpy(client_p
->name
, server_p
->name
, sizeof(client_p
->name
));
1518 strlcpy(client_p
->host
, server_p
->host
, sizeof(client_p
->host
));
1519 strlcpy(client_p
->sockhost
, server_p
->host
, sizeof(client_p
->sockhost
));
1520 client_p
->localClient
->F
= comm_add_fd(fd
);
1523 * Set up the initial server evilness, ripped straight from
1524 * connect_server(), so don't blame me for it being evil.
1528 if(!comm_set_buffers(client_p
->localClient
->F
->fd
, READBUF_SIZE
))
1530 report_error(SETBUF_ERROR_MSG
,
1531 get_server_name(client_p
, SHOW_IP
),
1532 log_client_name(client_p
, SHOW_IP
),
1537 * Attach config entries to client here rather than in
1538 * serv_connect_callback(). This to avoid null pointer references.
1540 attach_server_conf(client_p
, server_p
);
1543 * at this point we have a connection in progress and C/N lines
1544 * attached to the client, the socket info should be saved in the
1545 * client and it should either be resolved or have a valid address.
1547 * The socket has been connected or connect is in progress.
1549 make_server(client_p
);
1550 if(by
&& IsPerson(by
))
1552 strcpy(client_p
->serv
->by
, by
->name
);
1553 if(client_p
->serv
->user
)
1554 free_user(client_p
->serv
->user
, NULL
);
1555 client_p
->serv
->user
= by
->user
;
1560 strcpy(client_p
->serv
->by
, "AutoConn.");
1561 if(client_p
->serv
->user
)
1562 free_user(client_p
->serv
->user
, NULL
);
1563 client_p
->serv
->user
= NULL
;
1565 SetConnecting(client_p
);
1566 dlinkAddTail(client_p
, &client_p
->node
, &global_client_list
);
1568 if(ServerConfVhosted(server_p
))
1570 memcpy(&myipnum
, &server_p
->my_ipnum
, sizeof(myipnum
));
1571 ((struct sockaddr_in
*)&myipnum
)->sin_port
= 0;
1572 myipnum
.ss_family
= server_p
->aftype
;
1575 else if(server_p
->aftype
== AF_INET
&& ServerInfo
.specific_ipv4_vhost
)
1577 memcpy(&myipnum
, &ServerInfo
.ip
, sizeof(myipnum
));
1578 ((struct sockaddr_in
*)&myipnum
)->sin_port
= 0;
1579 myipnum
.ss_family
= AF_INET
;
1580 SET_SS_LEN(myipnum
, sizeof(struct sockaddr_in
));
1584 else if((server_p
->aftype
== AF_INET6
) && ServerInfo
.specific_ipv6_vhost
)
1586 memcpy(&myipnum
, &ServerInfo
.ip6
, sizeof(myipnum
));
1587 ((struct sockaddr_in6
*)&myipnum
)->sin6_port
= 0;
1588 myipnum
.ss_family
= AF_INET6
;
1589 SET_SS_LEN(myipnum
, sizeof(struct sockaddr_in6
));
1595 ilog(L_SERVER
, "Connecting to %s[%s] port %d (%s)", server_p
->name
, server_p
->host
, server_p
->port
,
1597 server_p
->aftype
== AF_INET6
? "IPv6" :
1599 (server_p
->aftype
== AF_INET
? "IPv4" : "?"));
1601 comm_connect_tcp(client_p
->localClient
->F
->fd
, server_p
->host
,
1602 server_p
->port
, NULL
, 0, serv_connect_callback
,
1603 client_p
, server_p
->aftype
,
1604 ConfigFileEntry
.connect_timeout
);
1609 inetntop_sock((struct sockaddr
*)&myipnum
, vhoststr
, sizeof vhoststr
);
1610 ilog(L_SERVER
, "Connecting to %s[%s] port %d (%s) (vhost %s)", server_p
->name
, server_p
->host
, server_p
->port
,
1612 server_p
->aftype
== AF_INET6
? "IPv6" :
1614 (server_p
->aftype
== AF_INET
? "IPv4" : "?"), vhoststr
);
1617 comm_connect_tcp(client_p
->localClient
->F
->fd
, server_p
->host
,
1618 server_p
->port
, (struct sockaddr
*) &myipnum
,
1619 GET_SS_LEN(myipnum
), serv_connect_callback
, client_p
,
1620 myipnum
.ss_family
, ConfigFileEntry
.connect_timeout
);
1626 * serv_connect_callback() - complete a server connection.
1628 * This routine is called after the server connection attempt has
1629 * completed. If unsucessful, an error is sent to ops and the client
1630 * is closed. If sucessful, it goes through the initialisation/check
1631 * procedures, the capabilities are sent, and the socket is then
1632 * marked for reading.
1635 serv_connect_callback(int fd
, int status
, void *data
)
1637 struct Client
*client_p
= data
;
1638 struct server_conf
*server_p
;
1640 fde_t
*F
= comm_locate_fd(fd
);
1642 /* First, make sure its a real client! */
1643 s_assert(client_p
!= NULL
);
1644 s_assert(client_p
->localClient
->F
->fd
== fd
);
1646 if(client_p
== NULL
)
1649 /* while we were waiting for the callback, its possible this already
1652 if(find_server(NULL
, client_p
->name
) != NULL
)
1654 exit_client(client_p
, client_p
, &me
, "Server Exists");
1658 /* Next, for backward purposes, record the ip of the server */
1659 memcpy(&client_p
->localClient
->ip
, &F
->connect
.hostaddr
, sizeof client_p
->localClient
->ip
);
1660 /* Set sockhost properly now -- jilles */
1661 inetntop_sock((struct sockaddr
*)&F
->connect
.hostaddr
,
1662 client_p
->sockhost
, sizeof client_p
->sockhost
);
1664 /* Check the status */
1665 if(status
!= COMM_OK
)
1667 /* COMM_ERR_TIMEOUT wont have an errno associated with it,
1668 * the others will.. --fl
1670 if(status
== COMM_ERR_TIMEOUT
)
1672 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
1673 "Error connecting to %s[%s]: %s",
1675 #ifdef HIDE_SERVERS_IPS
1680 comm_errstr(status
));
1681 ilog(L_SERVER
, "Error connecting to %s[%s]: %s",
1682 client_p
->name
, client_p
->sockhost
,
1683 comm_errstr(status
));
1687 errstr
= strerror(comm_get_sockerr(fd
));
1688 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
1689 "Error connecting to %s[%s]: %s (%s)",
1691 #ifdef HIDE_SERVERS_IPS
1696 comm_errstr(status
), errstr
);
1697 ilog(L_SERVER
, "Error connecting to %s[%s]: %s (%s)",
1698 client_p
->name
, client_p
->sockhost
,
1699 comm_errstr(status
), errstr
);
1702 exit_client(client_p
, client_p
, &me
, comm_errstr(status
));
1706 /* COMM_OK, so continue the connection procedure */
1707 /* Get the C/N lines */
1708 if((server_p
= client_p
->localClient
->att_sconf
) == NULL
)
1710 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
, "Lost connect{} block for %s",
1711 get_server_name(client_p
, HIDE_IP
));
1712 exit_client(client_p
, client_p
, &me
, "Lost connect{} block");
1716 /* Next, send the initial handshake */
1717 SetHandshake(client_p
);
1719 /* kludge, if we're not using TS6, dont ever send
1720 * ourselves as being TS6 capable.
1722 if(!EmptyString(server_p
->spasswd
))
1724 sendto_one(client_p
, "PASS %s TS %d :%s",
1725 server_p
->spasswd
, TS_CURRENT
, me
.id
);
1728 /* pass my info to the new server */
1729 send_capabilities(client_p
, default_server_capabs
1730 | (ServerConfCompressed(server_p
) ? CAP_ZIP_SUPPORTED
: 0)
1731 | (ServerConfTb(server_p
) ? CAP_TB
: 0));
1733 sendto_one(client_p
, "SERVER %s 1 :%s%s",
1735 ConfigServerHide
.hidden
? "(H) " : "", me
.info
);
1738 * If we've been marked dead because a send failed, just exit
1739 * here now and save everyone the trouble of us ever existing.
1741 if(IsAnyDead(client_p
))
1743 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
1744 "%s went dead during handshake", client_p
->name
);
1745 exit_client(client_p
, client_p
, &me
, "Went dead during handshake");
1749 /* don't move to serv_list yet -- we haven't sent a burst! */
1751 /* If we get here, we're ok, so lets start reading some data */
1752 read_packet(fd
, client_p
);
1755 #ifndef HAVE_SOCKETPAIR
1757 inet_socketpair(int d
, int type
, int protocol
, int sv
[2])
1759 struct sockaddr_in addr1
, addr2
, addr3
;
1760 int addr3_len
= sizeof(addr3
);
1762 int port_no
= 20000;
1764 if(d
!= AF_INET
|| type
!= SOCK_STREAM
|| protocol
)
1766 errno
= EAFNOSUPPORT
;
1769 if(((sv
[0] = socket(AF_INET
, SOCK_STREAM
, 0)) < 0) || ((sv
[1] = socket(AF_INET
, SOCK_STREAM
, 0)) < 0))
1772 addr1
.sin_port
= htons(port_no
);
1773 addr1
.sin_family
= AF_INET
;
1774 addr1
.sin_addr
.s_addr
= htonl(INADDR_LOOPBACK
);
1775 while ((rc
= bind (sv
[0], (struct sockaddr
*) &addr1
, sizeof (addr1
))) < 0 && errno
== EADDRINUSE
)
1776 addr1
.sin_port
= htons(++port_no
);
1781 if(listen(sv
[0], 1) < 0)
1788 addr2
.sin_port
= htons(port_no
);
1789 addr2
.sin_family
= AF_INET
;
1790 addr2
.sin_addr
.s_addr
= htonl(INADDR_LOOPBACK
);
1791 if(connect (sv
[1], (struct sockaddr
*) &addr2
, sizeof (addr2
)) < 0)
1798 if((fd
= accept(sv
[1], (struct sockaddr
*) &addr3
, &addr3_len
)) < 0)