--- /dev/null
+Index: include/channel.h
+===================================================================
+RCS file: /home/coder-com/cvs/ircu2.10/include/channel.h,v
+retrieving revision 1.32
+diff -u -r1.32 channel.h
+--- include/channel.h 2002/04/03 21:16:01 1.32
++++ include/channel.h 2002/04/12 13:47:52
+@@ -95,6 +95,8 @@
+ #define MODE_BURSTADDED 0x80000 /* channel was created by a BURST */
+ #define MODE_UPASS 0x100000
+ #define MODE_APASS 0x200000
++#define MODE_EMPTY 0x400000 /* LazyLeaf: no more locals, remove channel asap */
++
+ /*
+ * mode flags which take another parameter (With PARAmeterS)
+ */
+@@ -222,15 +224,20 @@
+ time_t creationtime;
+ time_t topic_time;
+ unsigned int users;
++ unsigned int locals;
+ struct Membership* members;
+ struct SLink* invites;
+ struct SLink* banlist;
+ struct Mode mode;
+ char topic[TOPICLEN + 1];
+ char topic_nick[NICKLEN + 1];
+- char chname[1];
++ unsigned long ll_bits; /* LazyLeaf */
++ char chname[1]; /* This *must* be last */
+ };
+
++#define LeafKnowsChannel(c,x) (cli_serv(c)->ll_mask & (x)->ll_bits)
++#define LL_ALL (~0UL)
++
+ struct ListingArgs {
+ time_t max_time;
+ time_t min_time;
+@@ -350,6 +357,7 @@
+ extern int is_zombie(struct Client *cptr, struct Channel *chptr);
+ extern int has_voice(struct Client *cptr, struct Channel *chptr);
+ extern void send_channel_modes(struct Client *cptr, struct Channel *chptr);
++extern void ll_send_channel(struct Client *cptr, struct Channel *chptr);
+ extern char *pretty_mask(char *mask);
+ extern void del_invite(struct Client *cptr, struct Channel *chptr);
+ extern void list_next_channels(struct Client *cptr, int nr);
+Index: include/client.h
+===================================================================
+RCS file: /home/coder-com/cvs/ircu2.10/include/client.h,v
+retrieving revision 1.26
+diff -u -r1.26 client.h
+--- include/client.h 2002/04/05 11:36:58 1.26
++++ include/client.h 2002/04/12 13:47:52
+@@ -369,6 +369,7 @@
+ #define FLAGS_DOID 0x00040000 /* I-lines say must use ident return */
+ #define FLAGS_NONL 0x00080000 /* No \n in buffer */
+ #define FLAGS_TS8 0x00100000 /* Why do you want to know? */
++#define FLAGS_LAZY 0x00200000 /* LazyLeaf */
+ #define FLAGS_MAP 0x00800000 /* Show server on the map */
+ #define FLAGS_JUNCTION 0x01000000 /* Junction causing the net.burst */
+ #define FLAGS_DEAF 0x02000000 /* Makes user deaf */
+@@ -413,6 +414,7 @@
+ #define IsAccount(x) (cli_flags(x) & FLAGS_ACCOUNT)
+ #define IsHiddenHost(x) (cli_flags(x) & FLAGS_HIDDENHOST)
+ #define HasHiddenHost(x) (IsAccount(x) && IsHiddenHost(x))
++#define IsLazy(x) (cli_flags(x) & FLAGS_LAZY)
+
+ #define IsPrivileged(x) (IsAnOper(x) || IsServer(x))
+
+@@ -435,6 +437,7 @@
+ #define SetService(x) (cli_flags(x) |= FLAGS_SERVICE)
+ #define SetAccount(x) (cli_flags(x) |= FLAGS_ACCOUNT)
+ #define SetHiddenHost(x) (cli_flags(x) |= FLAGS_HIDDENHOST)
++#define SetLazy(x) (cli_flags(x) |= FLAGS_LAZY)
+
+ #define ClearAccess(x) (cli_flags(x) &= ~FLAGS_CHKACCESS)
+ #define ClearBurst(x) (cli_flags(x) &= ~FLAGS_BURST)
+@@ -450,6 +453,7 @@
+ #define ClearWallops(x) (cli_flags(x) &= ~FLAGS_WALLOP)
+ #define ClearServNotice(x) (cli_flags(x) &= ~FLAGS_SERVNOTICE)
+ #define ClearHiddenHost(x) (cli_flags(x) &= ~FLAGS_HIDDENHOST)
++#define ClearLazy(x) (cli_flags(x) &= ~FLAGS_LAZY)
+
+ /* free flags */
+ #define FREEFLAG_SOCKET 0x0001 /* socket needs to be freed */
+Index: include/handlers.h
+===================================================================
+RCS file: /home/coder-com/cvs/ircu2.10/include/handlers.h,v
+retrieving revision 1.16
+diff -u -r1.16 handlers.h
+--- include/handlers.h 2002/03/19 22:03:36 1.16
++++ include/handlers.h 2002/04/12 13:47:52
+@@ -183,6 +183,7 @@
+ extern int ms_gline(struct Client*, struct Client*, int, char*[]);
+ extern int ms_info(struct Client*, struct Client*, int, char*[]);
+ extern int ms_invite(struct Client*, struct Client*, int, char*[]);
++extern int ms_forget(struct Client*, struct Client*, int, char*[]);
+ extern int ms_join(struct Client*, struct Client*, int, char*[]);
+ extern int ms_jupe(struct Client*, struct Client*, int, char*[]);
+ extern int ms_kick(struct Client*, struct Client*, int, char*[]);
+Index: include/ircd_features.h
+===================================================================
+RCS file: /home/coder-com/cvs/ircu2.10/include/ircd_features.h,v
+retrieving revision 1.15
+diff -u -r1.15 ircd_features.h
+--- include/ircd_features.h 2002/04/03 15:23:47 1.15
++++ include/ircd_features.h 2002/04/12 13:47:52
+@@ -37,6 +37,7 @@
+ FEAT_KILL_IPMISMATCH,
+ FEAT_IDLE_FROM_MSG,
+ FEAT_HUB,
++ FEAT_LAZY_LEAF,
+ FEAT_WALLOPS_OPER_ONLY,
+ FEAT_NODNS,
+ FEAT_RANDOM_SEED,
+Index: include/msg.h
+===================================================================
+RCS file: /home/coder-com/cvs/ircu2.10/include/msg.h,v
+retrieving revision 1.12
+diff -u -r1.12 msg.h
+--- include/msg.h 2002/02/14 00:20:40 1.12
++++ include/msg.h 2002/04/12 13:47:52
+@@ -330,6 +330,10 @@
+ #define TOK_ACCOUNT "AC"
+ #define CMD_ACCOUNT MSG_ACCOUNT, TOK_ACCOUNT
+
++#define MSG_FORGET "FORGET" /* FORGET */
++#define TOK_FORGET "FO"
++#define CMD_FORGET MSG_FORGET, TOK_FORGET
++
+ #define MSG_POST "POST" /* POST */
+ #define TOK_POST "POST"
+
+Index: include/s_serv.h
+===================================================================
+RCS file: /home/coder-com/cvs/ircu2.10/include/s_serv.h,v
+retrieving revision 1.6
+diff -u -r1.6 s_serv.h
+--- include/s_serv.h 2001/06/08 23:12:16 1.6
++++ include/s_serv.h 2002/04/12 13:47:52
+@@ -12,9 +12,11 @@
+
+ struct ConfItem;
+ struct Client;
++struct Channel;
+
+ extern unsigned int max_connection_count;
+ extern unsigned int max_client_count;
++extern unsigned long GlobalLeafBits;
+
+ /*
+ * Prototypes
+@@ -24,5 +26,8 @@
+ extern int a_kills_b_too(struct Client *a, struct Client *b);
+ extern int server_estab(struct Client *cptr, struct ConfItem *aconf);
+
++extern int ll_add(struct Client *cptr);
++extern void ll_remove(struct Client *cptr);
++extern void ll_check_channel(struct Client *cptr, struct Channel *chptr);
+
+ #endif /* INCLUDED_s_serv_h */
+Index: include/send.h
+===================================================================
+RCS file: /home/coder-com/cvs/ircu2.10/include/send.h,v
+retrieving revision 1.17
+diff -u -r1.17 send.h
+--- include/send.h 2002/02/14 00:20:41 1.17
++++ include/send.h 2002/04/12 13:47:52
+@@ -47,6 +47,12 @@
+ const char *tok, struct Client *one,
+ const char *pattern, ...);
+
++/* Same as above, but only when the server's ll_mask matches */
++extern void sendcmdto_mask_butone(struct Client *from, const char *cmd,
++ const char *tok, unsigned long ll_mask,
++ struct Client *one,
++ const char *pattern, ...);
++
+ /* Send command to all channels user is on */
+ extern void sendcmdto_common_channels_butone(struct Client *from,
+ const char *cmd,
+Index: include/struct.h
+===================================================================
+RCS file: /home/coder-com/cvs/ircu2.10/include/struct.h,v
+retrieving revision 1.3
+diff -u -r1.3 struct.h
+--- include/struct.h 2002/02/14 00:20:41 1.3
++++ include/struct.h 2002/04/12 13:47:52
+@@ -52,6 +52,7 @@
+ unsigned short nn_last; /* Last numeric nick for p9 servers only */
+ unsigned int nn_mask; /* [Remote] FD_SETSIZE - 1 */
+ char nn_capacity[4]; /* numeric representation of server capacity */
++ unsigned long ll_mask; /* LazyLeaf mask */
+
+ char *last_error_msg; /* Allocated memory with last message receive with an ERROR */
+ char by[NICKLEN + 1];
+Index: ircd/Makefile.in
+===================================================================
+RCS file: /home/coder-com/cvs/ircu2.10/ircd/Makefile.in,v
+retrieving revision 1.43
+diff -u -r1.43 Makefile.in
+--- ircd/Makefile.in 2002/04/03 21:16:01 1.43
++++ ircd/Makefile.in 2002/04/12 13:47:52
+@@ -120,6 +120,7 @@
+ m_die.c \
+ m_endburst.c \
+ m_error.c \
++ m_forget.c \
+ m_get.c \
+ m_gline.c \
+ m_help.c \
+Index: ircd/channel.c
+===================================================================
+RCS file: /home/coder-com/cvs/ircu2.10/ircd/channel.c,v
+retrieving revision 1.81
+diff -u -r1.81 channel.c
+--- ircd/channel.c 2002/04/03 21:16:01 1.81
++++ ircd/channel.c 2002/04/12 13:47:52
+@@ -46,6 +46,7 @@
+ #include "s_conf.h"
+ #include "s_debug.h"
+ #include "s_misc.h"
++#include "s_serv.h"
+ #include "s_user.h"
+ #include "send.h"
+ #include "struct.h"
+@@ -533,6 +534,8 @@
+ remove_destruct_event(chptr);
+ ++chptr->users;
+ ++((cli_user(who))->joined);
++ if (MyUser(who))
++ ++chptr->locals;
+ }
+ }
+
+@@ -562,6 +565,8 @@
+ (cli_user(member->user))->channel = member->next_channel;
+
+ --(cli_user(member->user))->joined;
++ if (MyUser(member->user))
++ --chptr->locals;
+
+ member->next_member = membershipFreeList;
+ membershipFreeList = member;
+@@ -587,6 +592,17 @@
+ struct Membership* member;
+ assert(0 != chptr);
+
++ if (chptr->mode.mode & MODE_EMPTY) {
++ assert(feature_bool(FEAT_LAZY_LEAF));
++
++ /* Channel has no more locals, free it */
++ do {
++ assert(!MyUser(chptr->members->user));
++ } while (remove_member_from_channel(chptr->members));
++
++ return;
++ }
++
+ if ((member = find_member_link(chptr, cptr))) {
+ if (remove_member_from_channel(member)) {
+ if (channel_all_zombies(chptr)) {
+@@ -1417,6 +1433,7 @@
+ for (; acptr != &me; acptr = (cli_serv(acptr))->up)
+ if (acptr == (cli_user(who))->server) /* Case d) (server 5) */
+ {
++ ll_check_channel(who, chptr);
+ remove_user_from_channel(who, chptr);
+ return;
+ }
+@@ -1769,8 +1786,8 @@
+
+ if (mbuf->mb_dest & MODEBUF_DEST_OPMODE) {
+ /* If OPMODE was set, we're propagating the mode as an OPMODE message */
+- sendcmdto_serv_butone(mbuf->mb_source, CMD_OPMODE, mbuf->mb_connect,
+- "%H %s%s%s%s%s%s", mbuf->mb_channel,
++ sendcmdto_mask_butone(mbuf->mb_source, CMD_OPMODE, mbuf->mb_channel->ll_bits,
++ mbuf->mb_connect, "%H %s%s%s%s%s%s", mbuf->mb_channel,
+ rembuf_i ? "-" : "", rembuf, addbuf_i ? "+" : "",
+ addbuf, remstr, addstr);
+ } else if (mbuf->mb_dest & MODEBUF_DEST_BOUNCE) {
+@@ -1789,14 +1806,16 @@
+ * we send the actual channel TS unless this is a HACK3 or a HACK4
+ */
+ if (IsServer(mbuf->mb_source))
+- sendcmdto_serv_butone(mbuf->mb_source, CMD_MODE, mbuf->mb_connect,
++ sendcmdto_mask_butone(mbuf->mb_source, CMD_MODE,
++ mbuf->mb_channel->ll_bits, mbuf->mb_connect,
+ "%H %s%s%s%s%s%s %Tu", mbuf->mb_channel,
+ rembuf_i ? "-" : "", rembuf, addbuf_i ? "+" : "",
+ addbuf, remstr, addstr,
+ (mbuf->mb_dest & MODEBUF_DEST_HACK4) ? 0 :
+ mbuf->mb_channel->creationtime);
+ else
+- sendcmdto_serv_butone(mbuf->mb_source, CMD_MODE, mbuf->mb_connect,
++ sendcmdto_mask_butone(mbuf->mb_source, CMD_MODE,
++ mbuf->mb_channel->ll_bits, mbuf->mb_connect,
+ "%H %s%s%s%s%s%s", mbuf->mb_channel,
+ rembuf_i ? "-" : "", rembuf, addbuf_i ? "+" : "",
+ addbuf, remstr, addstr);
+@@ -3143,7 +3162,7 @@
+
+ /* send notification to all servers */
+ if (jbuf->jb_type != JOINBUF_TYPE_CREATE && !IsLocalChannel(chan->chname))
+- sendcmdto_serv_butone(jbuf->jb_source, CMD_JOIN, jbuf->jb_connect,
++ sendcmdto_mask_butone(jbuf->jb_source, CMD_JOIN, chan->ll_bits, jbuf->jb_connect,
+ "%H %Tu", chan, chan->creationtime);
+
+ /* Send the notification to the channel */
+@@ -3192,9 +3211,37 @@
+ build_string(chanlist, &chanlist_i,
+ jbuf->jb_channels[i] ? jbuf->jb_channels[i]->chname : "0", 0,
+ i == 0 ? '\0' : ',');
+- if (JOINBUF_TYPE_PART == jbuf->jb_type)
++
++ /*
++ * For lazy leafs, joins/parts have to be sent separately for
++ * each channel.
++ */
++ switch (jbuf->jb_type) {
++ case JOINBUF_TYPE_CREATE:
++ sendcmdto_mask_butone(jbuf->jb_source, CMD_CREATE,
++ jbuf->jb_channels[i] ? jbuf->jb_channels[i]->ll_bits : LL_ALL,
++ jbuf->jb_connect, "%s %Tu",
++ jbuf->jb_channels[i] ? jbuf->jb_channels[i]->chname : "0",
++ jbuf->jb_create);
++ break;
++
++ case JOINBUF_TYPE_PART:
++ sendcmdto_mask_butone(jbuf->jb_source, CMD_PART,
++ jbuf->jb_channels[i]->ll_bits,
++ jbuf->jb_connect,
++ jbuf->jb_comment ? "%s :%s" : "%s",
++ jbuf->jb_channels[i]->chname,
++ jbuf->jb_comment);
++ break;
++ }
++
++ if (JOINBUF_TYPE_PART == jbuf->jb_type) {
++ /* Check now, as remove_user* may free the channel */
++ ll_check_channel(jbuf->jb_source, jbuf->jb_channels[i]);
++
+ /* Remove user from channel */
+ remove_user_from_channel(jbuf->jb_source, jbuf->jb_channels[i]);
++ }
+
+ jbuf->jb_channels[i] = 0; /* mark slot empty */
+ }
+@@ -3204,6 +3251,7 @@
+ STARTJOINLEN : STARTCREATELEN) +
+ (jbuf->jb_comment ? strlen(jbuf->jb_comment) + 2 : 0));
+
++#if 0
+ /* and send the appropriate command */
+ switch (jbuf->jb_type) {
+ case JOINBUF_TYPE_CREATE:
+@@ -3217,6 +3265,7 @@
+ jbuf->jb_comment);
+ break;
+ }
++#endif
+
+ return 0;
+ }
+Index: ircd/ircd_features.c
+===================================================================
+RCS file: /home/coder-com/cvs/ircu2.10/ircd/ircd_features.c,v
+retrieving revision 1.19
+diff -u -r1.19 ircd_features.c
+--- ircd/ircd_features.c 2002/04/03 15:23:48 1.19
++++ ircd/ircd_features.c 2002/04/12 13:47:52
+@@ -244,6 +244,7 @@
+ F_B(KILL_IPMISMATCH, FEAT_OPER, 0, 0),
+ F_B(IDLE_FROM_MSG, 0, 1, 0),
+ F_B(HUB, 0, 0, 0),
++ F_B(LAZY_LEAF, 0, 0, 0),
+ F_B(WALLOPS_OPER_ONLY, 0, 0, 0),
+ F_B(NODNS, 0, 0, 0),
+ F_N(RANDOM_SEED, FEAT_NODISP, random_seed_set, 0, 0, 0, 0, 0, 0),
+Index: ircd/m_burst.c
+===================================================================
+RCS file: /home/coder-com/cvs/ircu2.10/ircd/m_burst.c,v
+retrieving revision 1.16
+diff -u -r1.16 m_burst.c
+--- ircd/m_burst.c 2002/03/27 22:30:24 1.16
++++ ircd/m_burst.c 2002/04/12 13:47:52
+@@ -89,6 +89,7 @@
+ #include "ircd_policy.h"
+ #include "ircd_reply.h"
+ #include "ircd_string.h"
++#include "ircd_features.h"
+ #include "list.h"
+ #include "match.h"
+ #include "msg.h"
+@@ -463,6 +464,11 @@
+ lp->flags &= (CHFL_BAN | CHFL_BAN_IPMASK); /* reset the flag */
+ lp_p = &(*lp_p)->next;
+ }
++ }
++
++ if (IsLazy(cptr) && !LeafKnowsChannel(cptr, chptr)) {
++ chptr->ll_bits |= cli_serv(cptr)->ll_mask;
++ send_channel_modes(cptr, chptr);
+ }
+
+ return mbuf ? modebuf_flush(mbuf) : 0;
+Index: ircd/m_clearmode.c
+===================================================================
+RCS file: /home/coder-com/cvs/ircu2.10/ircd/m_clearmode.c,v
+retrieving revision 1.20
+diff -u -r1.20 m_clearmode.c
+--- ircd/m_clearmode.c 2002/02/14 00:20:42 1.20
++++ ircd/m_clearmode.c 2002/04/12 13:47:52
+@@ -234,8 +234,8 @@
+
+ /* Then send it */
+ if (!IsLocalChannel(chptr->chname))
+- sendcmdto_serv_butone(sptr, CMD_CLEARMODE, cptr, "%H %s", chptr,
+- control_buf);
++ sendcmdto_mask_butone(sptr, CMD_CLEARMODE, chptr->ll_bits, cptr,
++ "%H %s", chptr, control_buf);
+
+ return 0;
+ }
+Index: ircd/m_create.c
+===================================================================
+RCS file: /home/coder-com/cvs/ircu2.10/ircd/m_create.c,v
+retrieving revision 1.12
+diff -u -r1.12 m_create.c
+--- ircd/m_create.c 2002/02/14 00:20:42 1.12
++++ ircd/m_create.c 2002/04/12 13:47:52
+@@ -154,6 +154,7 @@
+ continue;
+
+ if ((chptr = FindChannel(name))) {
++ int hack2 = IsLazy(cptr) ? 0 : MODEBUF_DEST_HACK2;
+ name = chptr->chname;
+
+ /* Check if we need to bounce a mode */
+@@ -162,7 +163,7 @@
+ chptr->creationtime != MAGIC_REMOTE_JOIN_TS)) {
+ modebuf_init(&mbuf, sptr, cptr, chptr,
+ (MODEBUF_DEST_SERVER | /* Send mode to server */
+- MODEBUF_DEST_HACK2 | /* Send a HACK(2) message */
++ hack2 | /* Send a HACK(2) message */
+ MODEBUF_DEST_BOUNCE)); /* And bounce the mode */
+
+ modebuf_mode_client(&mbuf, MODE_ADD | MODE_CHANOP, sptr);
+@@ -180,6 +181,11 @@
+ joinbuf_join(badop ? &join : &create, chptr,
+ (badop || IsModelessChannel(name)) ?
+ CHFL_DEOPPED : CHFL_CHANOP);
++
++ if (IsLazy(cptr) && !LeafKnowsChannel(cptr, chptr)) {
++ chptr->ll_bits |= cli_serv(cptr)->ll_mask;
++ send_channel_modes(cptr, chptr);
++ }
+ }
+
+ joinbuf_flush(&join); /* flush out the joins and creates */
+Index: ircd/m_join.c
+===================================================================
+RCS file: /home/coder-com/cvs/ircu2.10/ircd/m_join.c,v
+retrieving revision 1.19
+diff -u -r1.19 m_join.c
+--- ircd/m_join.c 2002/03/13 09:19:21 1.19
++++ ircd/m_join.c 2002/04/12 13:47:52
+@@ -373,6 +373,11 @@
+ chptr->creationtime = creation;
+ }
+
++ if (IsLazy(cptr) && !LeafKnowsChannel(cptr, chptr)) {
++ chptr->ll_bits |= cli_serv(cptr)->ll_mask;
++ send_channel_modes(cptr, chptr);
++ }
++
+ joinbuf_join(&join, chptr, flags);
+ }
+
+Index: ircd/m_kick.c
+===================================================================
+RCS file: /home/coder-com/cvs/ircu2.10/ircd/m_kick.c,v
+retrieving revision 1.8
+diff -u -r1.8 m_kick.c
+--- ircd/m_kick.c 2002/03/13 09:19:21 1.8
++++ ircd/m_kick.c 2002/04/12 13:47:52
+@@ -150,7 +150,7 @@
+ comment = EmptyString(parv[parc - 1]) ? parv[0] : parv[parc - 1];
+
+ if (!IsLocalChannel(name))
+- sendcmdto_serv_butone(sptr, CMD_KICK, cptr, "%H %C :%s", chptr, who,
++ sendcmdto_mask_butone(sptr, CMD_KICK, chptr->ll_bits, cptr, "%H %C :%s", chptr, who,
+ comment);
+
+ sendcmdto_channel_butserv_butone(sptr, CMD_KICK, chptr, NULL, "%H %C :%s", chptr, who,
+@@ -228,7 +228,7 @@
+ }
+ } else {
+ /* Propagate kick... */
+- sendcmdto_serv_butone(sptr, CMD_KICK, cptr, "%H %C :%s", chptr, who,
++ sendcmdto_mask_butone(sptr, CMD_KICK, chptr->ll_bits, cptr, "%H %C :%s", chptr, who,
+ comment);
+
+ if (member) { /* and tell the channel about it */
+Index: ircd/m_server.c
+===================================================================
+RCS file: /home/coder-com/cvs/ircu2.10/ircd/m_server.c,v
+retrieving revision 1.26
+diff -u -r1.26 m_server.c
+--- ircd/m_server.c 2002/03/19 22:03:36 1.26
++++ ircd/m_server.c 2002/04/12 13:47:52
+@@ -181,6 +181,9 @@
+ case 's':
+ SetService(cptr);
+ break;
++ case 'l':
++ SetLazy(cptr);
++ break;
+ }
+ }
+
+Index: ircd/m_topic.c
+===================================================================
+RCS file: /home/coder-com/cvs/ircu2.10/ircd/m_topic.c,v
+retrieving revision 1.10
+diff -u -r1.10 m_topic.c
+--- ircd/m_topic.c 2002/02/14 00:20:43 1.10
++++ ircd/m_topic.c 2002/04/12 13:47:52
+@@ -115,8 +115,8 @@
+ chptr->topic_time = CurrentTime;
+ /* Fixed in 2.10.11: Don't propergate local topics */
+ if (!IsLocalChannel(chptr->chname))
+- sendcmdto_serv_butone(sptr, CMD_TOPIC, cptr, "%H :%s", chptr,
+- chptr->topic);
++ sendcmdto_mask_butone(sptr, CMD_TOPIC, chptr->ll_bits, cptr, "%H %Tu :%s", chptr,
++ chptr->topic_time, chptr->topic);
+ if (newtopic)
+ sendcmdto_channel_butserv_butone(sptr, CMD_TOPIC, chptr, NULL,
+ "%H :%s", chptr, chptr->topic);
+Index: ircd/parse.c
+===================================================================
+RCS file: /home/coder-com/cvs/ircu2.10/ircd/parse.c,v
+retrieving revision 1.34
+diff -u -r1.34 parse.c
+--- ircd/parse.c 2002/03/19 22:03:36 1.34
++++ ircd/parse.c 2002/04/12 13:47:53
+@@ -577,6 +577,13 @@
+ /* UNREG, CLIENT, SERVER, OPER, SERVICE */
+ { m_ignore, m_ignore, ms_account, m_ignore, m_ignore }
+ },
++ {
++ MSG_FORGET,
++ TOK_FORGET,
++ 0, MAXPARA, MFLG_SLOW, 0,
++ /* UNREG, CLIENT, SERVER, OPER, SERVICE */
++ { m_ignore, m_ignore, ms_forget, m_ignore, m_ignore }
++ },
+ /* This command is an alias for QUIT during the unregistered part of
+ * of the server. This is because someone jumping via a broken web
+ * proxy will send a 'POST' as their first command - which we will
+Index: ircd/s_bsd.c
+===================================================================
+RCS file: /home/coder-com/cvs/ircu2.10/ircd/s_bsd.c,v
+retrieving revision 1.48
+diff -u -r1.48 s_bsd.c
+--- ircd/s_bsd.c 2002/04/03 06:45:49 1.48
++++ ircd/s_bsd.c 2002/04/12 13:47:53
+@@ -465,7 +465,8 @@
+ sendrawto_one(cptr, MSG_SERVER " %s 1 %Tu %Tu J%s %s%s +%s :%s",
+ cli_name(&me), cli_serv(&me)->timestamp, newts,
+ MAJOR_PROTOCOL, NumServCap(&me),
+- feature_bool(FEAT_HUB) ? "h" : "", cli_info(&me));
++ feature_bool(FEAT_HUB) ? "h" :
++ feature_bool(FEAT_LAZY_LEAF) ? "l" : "", cli_info(&me));
+
+ return (IsDead(cptr)) ? 0 : 1;
+ }
+Index: ircd/s_misc.c
+===================================================================
+RCS file: /home/coder-com/cvs/ircu2.10/ircd/s_misc.c,v
+retrieving revision 1.31
+diff -u -r1.31 s_misc.c
+--- ircd/s_misc.c 2002/04/02 00:26:47 1.31
++++ ircd/s_misc.c 2002/04/12 13:47:53
+@@ -48,6 +48,7 @@
+ #include "s_conf.h"
+ #include "s_debug.h"
+ #include "s_user.h"
++#include "s_serv.h"
+ #include "send.h"
+ #include "struct.h"
+ #include "support.h"
+@@ -477,6 +478,8 @@
+ sendto_opmask_butone(0, SNO_NETWORK, "Net break: %C %C (%s)",
+ cli_serv(victim)->up, victim, comment);
+
++ if (IsLazy(victim))
++ ll_remove(victim);
+ #if defined(HEAD_IN_SAND_MAP) || defined(HEAD_IN_SAND_LINKS)
+ map_update(victim);
+ #endif
+Index: ircd/s_serv.c
+===================================================================
+RCS file: /home/coder-com/cvs/ircu2.10/ircd/s_serv.c,v
+retrieving revision 1.28
+diff -u -r1.28 s_serv.c
+--- ircd/s_serv.c 2002/02/14 00:20:44 1.28
++++ ircd/s_serv.c 2002/04/12 13:47:53
+@@ -36,6 +36,7 @@
+ #include "ircd_string.h"
+ #include "ircd_snprintf.h"
+ #include "ircd_xopen.h"
++#include "ircd_log.h"
+ #include "jupe.h"
+ #include "list.h"
+ #include "match.h"
+@@ -61,6 +62,7 @@
+
+ unsigned int max_connection_count = 0;
+ unsigned int max_client_count = 0;
++unsigned long GlobalLeafBits = 0;
+
+ int exit_new_server(struct Client *cptr, struct Client *sptr, const char *host,
+ time_t timestamp, const char *pattern, ...)
+@@ -113,7 +115,8 @@
+ sendrawto_one(cptr, MSG_SERVER " %s 1 %Tu %Tu J%s %s%s +%s :%s",
+ cli_name(&me), cli_serv(&me)->timestamp,
+ cli_serv(cptr)->timestamp, MAJOR_PROTOCOL, NumServCap(&me),
+- feature_bool(FEAT_HUB) ? "h" : "",
++ feature_bool(FEAT_HUB) ? "h" :
++ feature_bool(FEAT_LAZY_LEAF) ? "l" : "",
+ *(cli_info(&me)) ? cli_info(&me) : "IRCers United");
+ /*
+ * Don't charge this IP# for connecting
+@@ -135,6 +138,9 @@
+
+ SetBurst(cptr);
+
++ if (IsLazy(cptr) && !ll_add(cptr))
++ ClearLazy(cptr);
++
+ /* nextping = CurrentTime; */
+
+ /*
+@@ -241,6 +247,7 @@
+ * Last, send the BURST.
+ * (Or for 2.9 servers: pass all channels plus statuses)
+ */
++ if (!IsLazy(cptr))
+ {
+ struct Channel *chptr;
+ for (chptr = GlobalChannelList; chptr; chptr = chptr->next)
+@@ -252,3 +259,42 @@
+ return 0;
+ }
+
++int ll_add(struct Client *cptr)
++{
++ int i = 1;
++
++ assert(IsLazy(cptr));
++
++ while ((GlobalLeafBits & i) && i < 0x80000000)
++ i <<= 1;
++ if (GlobalLeafBits & i) {
++ sendto_opmask_butone(NULL, SNO_OLDSNO, "No more bits for LazyLeaf %s.", cli_name(cptr));
++ return 0;
++ }
++ GlobalLeafBits |= i;
++ cli_serv(cptr)->ll_mask = i;
++ log_write(LS_DEBUG, L_DEBUG, 0, "Added LazyLeaf %s with mask 0x%lx. GlobalLeafBits=0x%lx", cli_name(cptr), i, GlobalLeafBits);
++ return 1;
++}
++
++void ll_remove(struct Client *cptr)
++{
++ struct Channel *chptr;
++
++ assert(IsLazy(cptr));
++
++ for (chptr = GlobalChannelList; chptr; chptr = chptr->next)
++ chptr->ll_bits &= ~cli_serv(cptr)->ll_mask;
++
++ GlobalLeafBits &= ~cli_serv(cptr)->ll_mask;
++ log_write(LS_DEBUG, L_DEBUG, 0, "Removed LazyLeaf %s with mask 0x%lx. GlobalLeafBits=0x%lx", cli_name(cptr), cli_serv(cptr)->ll_mask, GlobalLeafBits);
++}
++
++void ll_check_channel(struct Client *cptr, struct Channel *chptr)
++{
++ if (feature_bool(FEAT_LAZY_LEAF) && MyUser(cptr) && chptr->locals <= 1) {
++ log_write(LS_DEBUG, L_DEBUG, 0, "LazyLeaf: Channel %s has no more locals", chptr->chname);
++ sendcmdto_serv_butone(&me, CMD_FORGET, NULL, "%s", chptr->chname);
++ chptr->mode.mode |= MODE_EMPTY;
++ }
++}
+Index: ircd/send.c
+===================================================================
+RCS file: /home/coder-com/cvs/ircu2.10/ircd/send.c,v
+retrieving revision 1.46
+diff -u -r1.46 send.c
+--- ircd/send.c 2002/02/14 00:20:45 1.46
++++ ircd/send.c 2002/04/12 13:47:53
+@@ -328,6 +328,35 @@
+ msgq_clean(mb);
+ }
+
++void sendcmdto_mask_butone(struct Client *from, const char *cmd,
++ const char *tok, unsigned long ll_mask,
++ struct Client *one,
++ const char *pattern, ...)
++{
++ struct VarData vd;
++ struct MsgBuf *mb;
++ struct DLink *lp;
++
++ vd.vd_format = pattern; /* set up the struct VarData for %v */
++ va_start(vd.vd_args, pattern);
++
++ /* use token */
++ mb = msgq_make(&me, "%C %s %v", from, tok, &vd);
++ va_end(vd.vd_args);
++
++ /* send it to our downlinks */
++ for (lp = cli_serv(&me)->down; lp; lp = lp->next) {
++ if (one && lp->value.cptr == cli_from(one))
++ continue;
++ if (IsLazy(lp->value.cptr) && !(cli_serv(lp->value.cptr)->ll_mask & ll_mask))
++ continue;
++ send_buffer(lp->value.cptr, mb, 0);
++ }
++
++ msgq_clean(mb);
++}
++
++
+ /*
+ * Send a (prefix) command originating from <from> to all channels
+ * <from> is locally on. <from> must be a user. <tok> is ignored in
+--- /dev/null Thu Aug 24 12:00:32 2000
++++ doc/readme.lazylinks Fri Apr 12 16:47:36 2002
+@@ -0,0 +1,46 @@
++Concept
++~~~~~~~
++The idea behind lazy links is that leafs often don't need much of the
++state information they are sent. Currently, only lazy channels are
++implemented; this means lazy leafs will only be burst channels that
++they have local users on.
++
++Protocol
++~~~~~~~~
++If a leaf has FEAT_LAZY_LEAF set, it sends a +l flag in the SERVER message
++it sends to its hub (note that if FEAT_HUB is also set, it takes precedence
++over FEAT_LAZY_LEAF). The hub will then mark this leaf as 'lazy', and will
++not burst any channels to it. The hub will also keep a bitmask of which leaves
++know which channels. Subsequently, when the leaf tries to announce a channel
++to its hub (via a BURST, JOIN or CREATE) and the leaf doesn't "know" about
++that channel from the hub's point of view, the hub will send a full BURST of
++the channel back to the leaf, and mark the channel as "known" to the leaf.
++Note that a server with FEAT_LAZY_LEAF set *will* accept BURST messages outside
++of net.burst. When a channel has no more local clients, the leaf will send a
++FORGET message to the hub and destroy the channel locally. Upon receipt of this
++meessage, the hub will remove the "known" bit for that channel/leaf pair, and
++it will burst the channel again if the leaf tries to create it later on. The
++FORGET message has the following syntax:
++ <server numeric> FO <#channel>
++
++Code
++~~~~
++struct Server has a ll_mask field which is assigned to each lazy leaf on its
++uplink hub. Every leaf gets a bit, so the maximum number of leafs is 32 on
++32-bit machines. struct Channel now has a ll_bits bitmask field which stores
++which leaves "know" the channel. A new sendcmd_to_mask_butone function was
++used instead of sendcmdto_serv_butone which doesn't send to lazy leaves that
++don't match the specified mask (currently, chptr->ll_bits).
++
++Bugs
++~~~~
++This documentation is less than complete.
++
++Commands like LIST, TOPIC, MODE issued on a lazy leaf for channels that hasn't
++been burst to it will incorrectly report the channels doesn't exist. This should
++be handled by forwarding those messages to its uplink.
++
++joinbuf_flush now sends each join/part as a separate message, because they each
++have to be matched against the leaves' "known channel" bits.
++
++Probably more.
+--- /dev/null Thu Aug 24 12:00:32 2000
++++ ircd/m_forget.c Wed Apr 3 23:07:14 2002
+@@ -0,0 +1,123 @@
++/*
++ * IRC - Internet Relay Chat, ircd/m_forget.c
++ * Copyright (C) 2002 Alex Badea <vampire@p16.pub.ro>
++ *
++ * See file AUTHORS in IRC package for additional names of
++ * the programmers.
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; either version 1, or (at your option)
++ * any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
++ *
++ * $Id: lazy.diff,v 1.2 2002-04-12 13:50:27 vampire Exp $
++ */
++
++/*
++ * m_functions execute protocol messages on this server:
++ *
++ * cptr is always NON-NULL, pointing to a *LOCAL* client
++ * structure (with an open socket connected!). This
++ * identifies the physical socket where the message
++ * originated (or which caused the m_function to be
++ * executed--some m_functions may call others...).
++ *
++ * sptr is the source of the message, defined by the
++ * prefix part of the message if present. If not
++ * or prefix not found, then sptr==cptr.
++ *
++ * (!IsServer(cptr)) => (cptr == sptr), because
++ * prefixes are taken *only* from servers...
++ *
++ * (IsServer(cptr))
++ * (sptr == cptr) => the message didn't
++ * have the prefix.
++ *
++ * (sptr != cptr && IsServer(sptr) means
++ * the prefix specified servername. (?)
++ *
++ * (sptr != cptr && !IsServer(sptr) means
++ * that message originated from a remote
++ * user (not local).
++ *
++ * combining
++ *
++ * (!IsServer(sptr)) means that, sptr can safely
++ * taken as defining the target structure of the
++ * message in this server.
++ *
++ * *Always* true (if 'parse' and others are working correct):
++ *
++ * 1) sptr->from == cptr (note: cptr->from == cptr)
++ *
++ * 2) MyConnect(sptr) <=> sptr == cptr (e.g. sptr
++ * *cannot* be a local connection, unless it's
++ * actually cptr!). [MyConnect(x) should probably
++ * be defined as (x == x->from) --msa ]
++ *
++ * parc number of variable parameter strings (if zero,
++ * parv is allowed to be NULL)
++ *
++ * parv a NULL terminated list of parameter pointers,
++ *
++ * parv[0], sender (prefix string), if not present
++ * this points to an empty string.
++ * parv[1]...parv[parc-1]
++ * pointers to additional parameters
++ * parv[parc] == NULL, *always*
++ *
++ * note: it is guaranteed that parv[0]..parv[parc-1] are all
++ * non-NULL pointers.
++ */
++#include "config.h"
++
++#include "client.h"
++#include "hash.h"
++#include "ircd.h"
++#include "ircd_reply.h"
++#include "ircd_string.h"
++#include "msg.h"
++#include "numeric.h"
++#include "numnicks.h"
++#include "send.h"
++#include "channel.h"
++#include "ircd_log.h"
++
++#include <assert.h>
++#include <stdlib.h>
++
++/*
++ * ms_forget - server message handler
++ */
++int ms_forget(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
++{
++ struct Channel *chptr;
++
++ assert(0 != cptr);
++ assert(0 != sptr);
++ assert(IsServer(cptr));
++
++ if (parc < 2)
++ return need_more_params(sptr, "FORGET");
++
++ /*
++ * Only lazy leafs may forget about channels.
++ * Ignore forget messages for channels that don't exist.
++ */
++ if (!IsLazy(cptr) || !(chptr = FindChannel(parv[1])))
++ return 0;
++
++ chptr->ll_bits &= ~cli_serv(cptr)->ll_mask;
++ log_write(LS_DEBUG, L_DEBUG, 0, "LazyLeaf %s forgot about %s", cli_name(cptr), chptr->chname);
++
++ return 0;
++}
projects / ircu2.10.12-pk.git / blobdiff