]> jfr.im git - irc/rqf/shadowircd.git/blobdiff - src/client.c
Send only one ERR_MLOCKRESTRICTED per MODE command.
[irc/rqf/shadowircd.git] / src / client.c
index b383dbee98edc011e055a5fabee3256040991757..9e8c737dd3bf74e8723e11556eb9367b4d77c180 100644 (file)
@@ -22,7 +22,6 @@
  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
  *  USA
  *
- *  $Id: client.c 3514 2007-06-06 16:25:21Z nenolod $
  */
 #include "stdinc.h"
 #include "config.h"
 #include "class.h"
 #include "common.h"
 #include "hash.h"
-#include "irc_string.h"
-#include "sprintf_irc.h"
+#include "match.h"
 #include "ircd.h"
-#include "s_gline.h"
 #include "numeric.h"
 #include "packet.h"
 #include "s_auth.h"
@@ -74,20 +71,19 @@ static int qs_server(struct Client *, struct Client *, struct Client *, const ch
 
 static EVH check_pings;
 
-extern rb_bh *client_heap;
-extern rb_bh *lclient_heap;
-extern rb_bh *pclient_heap;
+static rb_bh *client_heap = NULL;
+static rb_bh *lclient_heap = NULL;
+static rb_bh *pclient_heap = NULL;
+static rb_bh *user_heap = NULL;
 static rb_bh *away_heap = NULL;
-
-extern char current_uid[IDLEN];
+static char current_uid[IDLEN];
 
 struct Dictionary *nd_dict = NULL;
 
 enum
 {
        D_LINED,
-       K_LINED,
-       G_LINED
+       K_LINED
 };
 
 rb_dlink_list dead_list;
@@ -122,6 +118,7 @@ init_client(void)
        client_heap = rb_bh_create(sizeof(struct Client), CLIENT_HEAP_SIZE, "client_heap");
        lclient_heap = rb_bh_create(sizeof(struct LocalUser), LCLIENT_HEAP_SIZE, "lclient_heap");
        pclient_heap = rb_bh_create(sizeof(struct PreClient), PCLIENT_HEAP_SIZE, "pclient_heap");
+       user_heap = rb_bh_create(sizeof(struct User), USER_HEAP_SIZE, "user_heap");
        away_heap = rb_bh_create(AWAYLEN, AWAY_HEAP_SIZE, "away_heap");
 
        rb_event_addish("check_pings", check_pings, NULL, 30);
@@ -155,7 +152,7 @@ make_client(struct Client *from)
        {
                client_p->from = client_p;      /* 'from' of local client is self! */
 
-               localClient = (struct LocalUser *) rb_bh_alloc(lclient_heap);
+               localClient = rb_bh_alloc(lclient_heap);
                SetMyConnect(client_p);
                client_p->localClient = localClient;
 
@@ -163,7 +160,7 @@ make_client(struct Client *from)
 
                client_p->localClient->F = NULL;
 
-               client_p->preClient = (struct PreClient *) rb_bh_alloc(pclient_heap);
+               client_p->preClient = rb_bh_alloc(pclient_heap);;
 
                /* as good a place as any... */
                rb_dlinkAdd(client_p, &client_p->localClient->tnode, &unknown_list);
@@ -233,12 +230,25 @@ free_local_client(struct Client *client_p)
                rb_free(client_p->localClient->passwd);
        }
 
+       rb_free(client_p->localClient->auth_user);
+
+       if(client_p->localClient->override_timeout_event)
+       {
+               rb_event_delete(client_p->localClient->override_timeout_event);
+       }
+
        rb_free(client_p->localClient->challenge);
        rb_free(client_p->localClient->fullcaps);
        rb_free(client_p->localClient->opername);
        rb_free(client_p->localClient->mangledhost);
+       if (client_p->localClient->privset)
+               privilegeset_unref(client_p->localClient->privset);
 
-       ssld_decrement_clicount(client_p->localClient->ssl_ctl);
+       if(IsSSL(client_p))
+           ssld_decrement_clicount(client_p->localClient->ssl_ctl);
+           
+       if(IsCapable(client_p, CAP_ZIP))
+           ssld_decrement_clicount(client_p->localClient->z_ctl);
 
        rb_bh_free(lclient_heap, client_p->localClient);
        client_p->localClient = NULL;
@@ -251,6 +261,7 @@ free_client(struct Client *client_p)
        s_assert(&me != client_p);
        free_local_client(client_p);
        free_pre_client(client_p);
+       rb_free(client_p->certfp);
        rb_bh_free(client_heap, client_p);
 }
 
@@ -325,7 +336,7 @@ check_pings_list(rb_dlink_list * list)
                                {
                                        sendto_realops_snomask(SNO_GENERAL, L_ALL,
                                                             "No response from %s, closing link",
-                                                            get_server_name(client_p, HIDE_IP));
+                                                            client_p->name);
                                        ilog(L_SERVER,
                                             "No response from %s, closing link",
                                             log_client_name(client_p, HIDE_IP));
@@ -376,6 +387,11 @@ check_unknowns_list(rb_dlink_list * list)
                if(IsDead(client_p) || IsClosing(client_p))
                        continue;
 
+               /* still has DNSbls to validate against */
+               if(client_p->preClient != NULL &&
+                               rb_dlink_list_length(&client_p->preClient->dnsbl_queries) > 0)
+                       continue;
+
                /*
                 * Check UNKNOWN connections - if they have been in this state
                 * for > 30s, close them.
@@ -388,7 +404,7 @@ check_unknowns_list(rb_dlink_list * list)
                        {
                                sendto_realops_snomask(SNO_GENERAL, is_remote_connect(client_p) ? L_NETWIDE : L_ALL,
                                                     "No response from %s, closing link",
-                                                    get_server_name(client_p, HIDE_IP));
+                                                    client_p->name);
                                ilog(L_SERVER,
                                     "No response from %s, closing link",
                                     log_client_name(client_p, HIDE_IP));
@@ -404,29 +420,17 @@ notify_banned_client(struct Client *client_p, struct ConfItem *aconf, int ban)
        static const char conn_closed[] = "Connection closed";
        static const char d_lined[] = "D-lined";
        static const char k_lined[] = "K-lined";
-       static const char g_lined[] = "G-lined";
        const char *reason = NULL;
        const char *exit_reason = conn_closed;
 
-       if(ConfigFileEntry.kline_with_reason && !EmptyString(aconf->passwd))
+       if(ConfigFileEntry.kline_with_reason)
        {
-               reason = aconf->passwd;
-               exit_reason = aconf->passwd;
+               reason = get_user_ban_reason(aconf);
+               exit_reason = reason;
        }
        else
        {
-               switch (aconf->status)
-               {
-               case D_LINED:
-                       reason = d_lined;
-                       break;
-               case G_LINED:
-                       reason = g_lined;
-                       break;
-               default:
-                       reason = k_lined;
-                       break;
-               }
+               reason = aconf->status == D_LINED ? d_lined : k_lined;
        }
 
        if(ban == D_LINED && !IsPerson(client_p))
@@ -444,117 +448,15 @@ notify_banned_client(struct Client *client_p, struct ConfItem *aconf, int ban)
  * check_banned_lines
  * inputs      - NONE
  * output      - NONE
- * side effects - Check all connections for a pending k/d/gline against the
+ * side effects - Check all connections for a pending k/dline against the
  *               client, exit the client if found.
  */
 void
 check_banned_lines(void)
 {
-       struct Client *client_p;        /* current local client_p being examined */
-       struct ConfItem *aconf = NULL;
-       rb_dlink_node *ptr, *next_ptr;
-
-       RB_DLINK_FOREACH_SAFE(ptr, next_ptr, lclient_list.head)
-       {
-               client_p = ptr->data;
-
-               if(IsMe(client_p))
-                       continue;
-
-               /* if there is a returned struct ConfItem then kill it */
-               if((aconf = find_dline((struct sockaddr *)&client_p->localClient->ip, client_p->localClient->ip.ss_family)))
-               {
-                       if(aconf->status & CONF_EXEMPTDLINE)
-                               continue;
-
-                       sendto_realops_snomask(SNO_GENERAL, L_ALL,
-                                            "DLINE active for %s",
-                                            get_client_name(client_p, HIDE_IP));
-
-                       notify_banned_client(client_p, aconf, D_LINED);
-                       continue;       /* and go examine next fd/client_p */
-               }
-
-               if(!IsPerson(client_p))
-                       continue;
-
-               if((aconf = find_kline(client_p)) != NULL)
-               {
-                       if(IsExemptKline(client_p))
-                       {
-                               sendto_realops_snomask(SNO_GENERAL, L_ALL,
-                                               "KLINE over-ruled for %s, client is kline_exempt [%s@%s]",
-                                               get_client_name(client_p, HIDE_IP),
-                                               aconf->user, aconf->host);
-                               continue;
-                       }
-
-                       sendto_realops_snomask(SNO_GENERAL, L_ALL,
-                                       "KLINE active for %s",
-                                       get_client_name(client_p, HIDE_IP));
-                       notify_banned_client(client_p, aconf, K_LINED);
-                       continue;
-               }
-               else if((aconf = find_gline(client_p)) != NULL)
-               {
-                       if(IsExemptKline(client_p))
-                       {
-                               sendto_realops_snomask(SNO_GENERAL, L_ALL,
-                                               "GLINE over-ruled for %s, client is kline_exempt [%s@%s]",
-                                               get_client_name(client_p, HIDE_IP),
-                                               aconf->user, aconf->host);
-                               continue;
-                       }
-
-                       if(IsExemptGline(client_p))
-                       {
-                               sendto_realops_snomask(SNO_GENERAL, L_ALL,
-                                               "GLINE over-ruled for %s, client is gline_exempt [%s@%s]",
-                                               get_client_name(client_p, HIDE_IP),
-                                               aconf->user, aconf->host);
-                               continue;
-                       }
-
-                       sendto_realops_snomask(SNO_GENERAL, L_ALL,
-                                       "GLINE active for %s",
-                                       get_client_name(client_p, HIDE_IP));
-
-                       notify_banned_client(client_p, aconf, G_LINED);
-                       continue;
-               }
-               else if((aconf = find_xline(client_p->info, 1)) != NULL)
-               {
-                       if(IsExemptKline(client_p))
-                       {
-                               sendto_realops_snomask(SNO_GENERAL, L_ALL,
-                                               "XLINE over-ruled for %s, client is kline_exempt [%s]",
-                                               get_client_name(client_p, HIDE_IP),
-                                               aconf->name);
-                               continue;
-                       }
-
-                       sendto_realops_snomask(SNO_GENERAL, L_ALL, "XLINE active for %s",
-                                       get_client_name(client_p, HIDE_IP));
-
-                       (void) exit_client(client_p, client_p, &me, "Bad user info");
-                       continue;
-               }
-       }
-
-       /* also check the unknowns list for new dlines */
-       RB_DLINK_FOREACH_SAFE(ptr, next_ptr, unknown_list.head)
-       {
-               client_p = ptr->data;
-
-               if((aconf = find_dline((struct sockaddr *)&client_p->localClient->ip,client_p->localClient->ip.ss_family)))
-               {
-                       if(aconf->status & CONF_EXEMPTDLINE)
-                               continue;
-
-                       notify_banned_client(client_p, aconf, D_LINED);
-               }
-       }
-
+       check_dlines();
+       check_klines();
+       check_xlines();
 }
 
 /* check_klines_event()
@@ -596,8 +498,9 @@ check_klines(void)
                        if(IsExemptKline(client_p))
                        {
                                sendto_realops_snomask(SNO_GENERAL, L_ALL,
-                                                    "KLINE over-ruled for %s, client is kline_exempt",
-                                                    get_client_name(client_p, HIDE_IP));
+                                                    "KLINE over-ruled for %s, client is kline_exempt [%s@%s]",
+                                                    get_client_name(client_p, HIDE_IP),
+                                                    aconf->user, aconf->host);
                                continue;
                        }
 
@@ -611,55 +514,6 @@ check_klines(void)
        }
 }
 
-/* check_glines()
- *
- * inputs       -
- * outputs      -
- * side effects - all clients will be checked for glines
- */
-void
-check_glines(void)
-{
-       struct Client *client_p;
-       struct ConfItem *aconf;
-       rb_dlink_node *ptr;
-       rb_dlink_node *next_ptr;
-
-       RB_DLINK_FOREACH_SAFE(ptr, next_ptr, lclient_list.head)
-       {
-               client_p = ptr->data;
-
-               if(IsMe(client_p) || !IsPerson(client_p))
-                       continue;
-
-               if((aconf = find_gline(client_p)) != NULL)
-               {
-                       if(IsExemptKline(client_p))
-                       {
-                               sendto_realops_snomask(SNO_GENERAL, L_ALL,
-                                                    "GLINE over-ruled for %s, client is kline_exempt",
-                                                    get_client_name(client_p, HIDE_IP));
-                               continue;
-                       }
-
-                       if(IsExemptGline(client_p))
-                       {
-                               sendto_realops_snomask(SNO_GENERAL, L_ALL,
-                                                    "GLINE over-ruled for %s, client is gline_exempt",
-                                                    get_client_name(client_p, HIDE_IP));
-                               continue;
-                       }
-
-                       sendto_realops_snomask(SNO_GENERAL, L_ALL,
-                                            "GLINE active for %s",
-                                            get_client_name(client_p, HIDE_IP));
-
-                       notify_banned_client(client_p, aconf, K_LINED);
-                       continue;
-               }
-       }
-}
-
 /* check_dlines()
  *
  * inputs       -
@@ -736,8 +590,9 @@ check_xlines(void)
                        if(IsExemptKline(client_p))
                        {
                                sendto_realops_snomask(SNO_GENERAL, L_ALL,
-                                                    "XLINE over-ruled for %s, client is kline_exempt",
-                                                    get_client_name(client_p, HIDE_IP));
+                                                    "XLINE over-ruled for %s, client is kline_exempt [%s]",
+                                                    get_client_name(client_p, HIDE_IP),
+                                                    aconf->host);
                                continue;
                        }
 
@@ -935,10 +790,8 @@ get_client_name(struct Client *client, int showip)
                if(ConfigFileEntry.hide_spoof_ips && 
                   showip == SHOW_IP && IsIPSpoof(client))
                        showip = MASK_IP;
-#ifdef HIDE_SERVERS_IPS
                if(IsAnyServer(client))
                        showip = MASK_IP;
-#endif
 
                /* And finally, let's get the host information, ip or name */
                switch (showip)
@@ -964,49 +817,6 @@ get_client_name(struct Client *client, int showip)
         */
        return client->name;
 }
-
-const char *
-get_server_name(struct Client *target_p, int showip)
-{
-       static char nbuf[HOSTLEN * 2 + USERLEN + 5];
-
-       if(target_p == NULL)
-               return NULL;
-
-       if(!MyConnect(target_p) || !irccmp(target_p->name, target_p->host))
-               return target_p->name;
-
-#ifdef HIDE_SERVERS_IPS
-       if(EmptyString(target_p->name))
-       {
-               rb_snprintf(nbuf, sizeof(nbuf), "[%s@255.255.255.255]",
-                               target_p->username);
-               return nbuf;
-       }
-       else
-               return target_p->name;
-#endif
-
-       switch (showip)
-       {
-               case SHOW_IP:
-                       rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@%s]",
-                               target_p->name, target_p->username, 
-                               target_p->sockhost);
-                       break;
-
-               case MASK_IP:
-                       rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@255.255.255.255]",
-                               target_p->name, target_p->username);
-
-               default:
-                       rb_snprintf(nbuf, sizeof(nbuf), "%s[%s@%s]",
-                               target_p->name, target_p->username,
-                               target_p->host);
-       }
-
-       return nbuf;
-}
        
 /* log_client_name()
  *
@@ -1285,7 +1095,7 @@ exit_aborted_clients(void *unused)
                if(IsAnyServer(abt->client))
                        sendto_realops_snomask(SNO_GENERAL, L_ALL,
                                             "Closing link to %s: %s",
-                                            get_server_name(abt->client, HIDE_IP), abt->notice);
+                                             abt->client->name, abt->notice);
 
                /* its no longer on abort list - we *must* remove
                 * FLAGS_CLOSING otherwise exit_client() will not run --fl
@@ -1302,7 +1112,7 @@ exit_aborted_clients(void *unused)
  *
  */
 void
-dead_link(struct Client *client_p)
+dead_link(struct Client *client_p, int sendqex)
 {
        struct abort_client *abt;
 
@@ -1312,8 +1122,8 @@ dead_link(struct Client *client_p)
 
        abt = (struct abort_client *) rb_malloc(sizeof(struct abort_client));
 
-       if(client_p->flags & FLAGS_SENDQEX)
-               strlcpy(abt->notice, "Max SendQ exceeded", sizeof(abt->notice));
+       if(sendqex)
+               rb_strlcpy(abt->notice, "Max SendQ exceeded", sizeof(abt->notice));
        else
                rb_snprintf(abt->notice, sizeof(abt->notice), "Write error: %s", strerror(errno));
 
@@ -1335,6 +1145,9 @@ exit_generic_client(struct Client *client_p, struct Client *source_p, struct Cli
        if(IsOper(source_p))
                rb_dlinkFindDestroy(source_p, &oper_list);
 
+       /* get rid of any metadata the user may have */
+       user_metadata_clear(source_p);
+
        sendto_common_channels_local(source_p, ":%s!%s@%s QUIT :%s",
                                     source_p->name,
                                     source_p->username, source_p->host, comment);
@@ -1385,8 +1198,6 @@ exit_remote_client(struct Client *client_p, struct Client *source_p, struct Clie
        {
                sendto_server(client_p, NULL, CAP_TS6, NOCAPS,
                              ":%s QUIT :%s", use_id(source_p), comment);
-               sendto_server(client_p, NULL, NOCAPS, CAP_TS6,
-                             ":%s QUIT :%s", source_p->name, comment);
        }
 
        SetDead(source_p);
@@ -1412,7 +1223,6 @@ exit_unknown_client(struct Client *client_p, struct Client *source_p, struct Cli
                delete_resolver_queries(source_p->localClient->dnsquery);
                rb_free(source_p->localClient->dnsquery);
        }
-       del_unknown_ip(source_p);
        rb_dlinkDelete(&source_p->localClient->tnode, &unknown_list);
 
        if(!IsIOError(source_p))
@@ -1494,15 +1304,12 @@ static int
 qs_server(struct Client *client_p, struct Client *source_p, struct Client *from, 
                  const char *comment)
 {
-       struct Client *target_p;
-
        if(source_p->servptr && source_p->servptr->serv)
                rb_dlinkDelete(&source_p->lnode, &source_p->servptr->serv->servers);
        else
                s_assert(0);
 
        rb_dlinkFindDestroy(source_p, &global_serv_list);
-       target_p = source_p->from;
        
        if(has_id(source_p))
                del_from_id_hash(source_p->id, source_p);
@@ -1594,6 +1401,7 @@ exit_local_client(struct Client *client_p, struct Client *source_p, struct Clien
                  const char *comment)
 {
        unsigned long on_for;
+       char tbuf[26];
 
        exit_generic_client(client_p, source_p, from, comment);
        clear_monitor(source_p);
@@ -1619,10 +1427,11 @@ exit_local_client(struct Client *client_p, struct Client *source_p, struct Clien
 
        on_for = rb_current_time() - source_p->localClient->firsttime;
 
-       ilog(L_USER, "%s (%3lu:%02lu:%02lu): %s!%s@%s %d/%d",
-               myctime(rb_current_time()), on_for / 3600,
+       ilog(L_USER, "%s (%3lu:%02lu:%02lu): %s!%s@%s %s %d/%d",
+               rb_ctime(rb_current_time(), tbuf, sizeof(tbuf)), on_for / 3600,
                (on_for % 3600) / 60, on_for % 60,
                source_p->name, source_p->username, source_p->host,
+               source_p->sockhost,
                source_p->localClient->sendK, source_p->localClient->receiveK);
 
        sendto_one(source_p, "ERROR :Closing Link: %s (%s)", source_p->host, comment);
@@ -1632,8 +1441,6 @@ exit_local_client(struct Client *client_p, struct Client *source_p, struct Clien
        {
                sendto_server(client_p, NULL, CAP_TS6, NOCAPS,
                              ":%s QUIT :%s", use_id(source_p), comment);
-               sendto_server(client_p, NULL, NOCAPS, CAP_TS6,
-                             ":%s QUIT :%s", source_p->name, comment);
        }
 
        SetDead(source_p);
@@ -1810,10 +1617,6 @@ show_ip(struct Client *source_p, struct Client *target_p)
 {
        if(IsAnyServer(target_p))
        {
-#ifndef HIDE_SERVERS_IPS
-               if(source_p == NULL || IsOper(source_p))
-                       return 1;
-#endif
                return 0;
        }
        else if(IsIPSpoof(target_p))
@@ -1846,24 +1649,6 @@ show_ip_conf(struct ConfItem *aconf, struct Client *source_p)
                return 1;
 }
 
-/*
- * initUser
- *
- * inputs      - none
- * outputs     - none
- *
- * side effects - Creates a block heap for struct Users
- *
- */
-static rb_bh *user_heap;
-void
-initUser(void)
-{
-       user_heap = rb_bh_create(sizeof(struct User), USER_HEAP_SIZE, "user_heap");
-       if(!user_heap)
-               rb_outofmemory();
-}
-
 /*
  * make_user
  *
@@ -1876,6 +1661,7 @@ struct User *
 make_user(struct Client *client_p)
 {
        struct User *user;
+       struct Dictionary *metadata;
 
        user = client_p->user;
        if(!user)
@@ -1883,6 +1669,9 @@ make_user(struct Client *client_p)
                user = (struct User *) rb_bh_alloc(user_heap);
                user->refcnt = 1;
                client_p->user = user;
+
+               metadata = irc_dictionary_create(irccmp);
+               client_p->user->metadata = metadata;
        }
        return user;
 }
@@ -1895,14 +1684,14 @@ make_user(struct Client *client_p)
  * side effects - add's an Server information block to a client
  *                if it was not previously allocated.
  */
-server_t *
+struct Server *
 make_server(struct Client *client_p)
 {
-       server_t *serv = client_p->serv;
+       struct Server *serv = client_p->serv;
 
        if(!serv)
        {
-               serv = (server_t *) rb_malloc(sizeof(server_t));
+               serv = (struct Server *) rb_malloc(sizeof(struct Server));
                client_p->serv = serv;
        }
        return client_p->serv;
@@ -1926,6 +1715,7 @@ free_user(struct User *user, struct Client *client_p)
        {
                if(user->away)
                        rb_free((char *) user->away);
+               
                /*
                 * sanity check
                 */
@@ -2037,10 +1827,10 @@ close_connection(struct Client *client_p)
        {
                struct server_conf *server_p;
 
-               ServerStats.is_sv++;\r
-               ServerStats.is_sbs += client_p->localClient->sendB;\r
-               ServerStats.is_sbr += client_p->localClient->receiveB;\r
-               ServerStats.is_sti += rb_current_time() - client_p->localClient->firsttime;
+               ServerStats.is_sv++;
+               ServerStats.is_sbs += client_p->localClient->sendB;
+               ServerStats.is_sbr += client_p->localClient->receiveB;
+               ServerStats.is_sti += (unsigned long long)(rb_current_time() - client_p->localClient->firsttime);
 
                /*
                 * If the connection has been up for a long amount of time, schedule
@@ -2063,10 +1853,10 @@ close_connection(struct Client *client_p)
        }
        else if(IsClient(client_p))
        {
-               ServerStats.is_cl++;\r
-               ServerStats.is_cbs += client_p->localClient->sendB;\r
-               ServerStats.is_cbr += client_p->localClient->receiveB;\r
-               ServerStats.is_cti += rb_current_time() - client_p->localClient->firsttime;
+               ServerStats.is_cl++;
+               ServerStats.is_cbs += client_p->localClient->sendB;
+               ServerStats.is_cbr += client_p->localClient->receiveB;
+               ServerStats.is_cti += (unsigned long long)(rb_current_time() - client_p->localClient->firsttime);
        }
        else
                ServerStats.is_ni++;
@@ -2119,7 +1909,7 @@ error_exit_client(struct Client *client_p, int error)
                {
                        sendto_realops_snomask(SNO_GENERAL, is_remote_connect(client_p) && !IsServer(client_p) ? L_NETWIDE : L_ALL,
                                             "Server %s closed the connection",
-                                            get_server_name(client_p, SHOW_IP));
+                                            client_p->name);
 
                        ilog(L_SERVER, "Server %s closed the connection",
                             log_client_name(client_p, SHOW_IP));
@@ -2135,9 +1925,102 @@ error_exit_client(struct Client *client_p, int error)
        }
 
        if(error == 0)
-               strlcpy(errmsg, "Remote host closed the connection", sizeof(errmsg));
+               rb_strlcpy(errmsg, "Remote host closed the connection", sizeof(errmsg));
        else
                rb_snprintf(errmsg, sizeof(errmsg), "Read error: %s", strerror(current_error));
 
        exit_client(client_p, client_p, &me, errmsg);
 }
+
+/*
+ * user_metadata_add
+ * 
+ * inputs      - pointer to client struct
+ *             - name of metadata item you wish to add
+ *             - value of metadata item
+ *             - 1 if metadata should be propegated, 0 if not
+ * output      - none
+ * side effects - metadata is added to the user in question
+ *             - metadata is propegated if propegate is set.
+ */
+struct Metadata *
+user_metadata_add(struct Client *target, const char *name, const char *value, int propegate)
+{
+       struct Metadata *md;
+
+       md = rb_malloc(sizeof(struct Metadata));
+       md->name = rb_strdup(name);
+       md->value = rb_strdup(value);
+
+       irc_dictionary_add(target->user->metadata, md->name, md);
+       
+       if(propegate)
+               sendto_match_servs(&me, "*", CAP_ENCAP, NOCAPS, "ENCAP * METADATA ADD %s %s :%s",
+                               target->id, name, value);
+
+       return md;
+}
+
+/*
+ * user_metadata_delete
+ * 
+ * inputs      - pointer to client struct
+ *             - name of metadata item you wish to delete
+ * output      - none
+ * side effects - metadata is deleted from the user in question
+ *             - deletion is propegated if propegate is set
+ */
+void
+user_metadata_delete(struct Client *target, const char *name, int propegate)
+{
+       struct Metadata *md = user_metadata_find(target, name);
+
+       if(!md)
+               return;
+
+       irc_dictionary_delete(target->user->metadata, md->name);
+
+       rb_free(md);
+
+       if(propegate)
+               sendto_match_servs(&me, "*", CAP_ENCAP, NOCAPS, "ENCAP * METADATA DELETE %s %s",
+                               target->id, name);
+}
+
+/*
+ * user_metadata_find
+ * 
+ * inputs      - pointer to client struct
+ *             - name of metadata item you wish to read
+ * output      - the requested metadata, if it exists, elsewise null.
+ * side effects - 
+ */
+struct Metadata *
+user_metadata_find(struct Client *target, const char *name)
+{
+       if(!target->user)
+               return NULL;
+
+       if(!target->user->metadata)
+               return NULL;
+
+       return irc_dictionary_retrieve(target->user->metadata, name);
+}
+/*
+ * user_metadata_clear
+ * 
+ * inputs      - pointer to user struct
+ * output      - none
+ * side effects - metadata is cleared from the user in question
+ */
+void
+user_metadata_clear(struct Client *target)
+{
+       struct Metadata *md;
+       struct DictionaryIter iter;
+       
+       DICTIONARY_FOREACH(md, &iter, target->user->metadata)
+       {
+               user_metadata_delete(target, md->name, 0);
+       }
+}