1 /* proto-common.c - common IRC protocol parsing/sending support
2 * Copyright 2000-2006 srvx Development Team
4 * This file is part of srvx.
6 * srvx is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with srvx; if not, write to the Free Software Foundation,
18 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
30 #ifdef HAVE_SYS_SOCKET_H
31 #include <sys/socket.h>
33 #ifdef HAVE_NETINET_IN_H
34 #include <netinet/in.h>
36 #ifdef HAVE_ARPA_INET_H
37 #include <arpa/inet.h>
40 unsigned int lines_processed;
42 struct io_fd *socket_io_fd;
44 const char *hidden_host_suffix;
46 static char replay_line[MAXLEN+80];
48 static int ping_timeout;
49 static int replay_connected;
50 static unsigned int nicklen = NICKLEN; /* how long do we think servers allow nicks to be? */
51 static struct userList dead_users;
53 extern struct cManagerNode cManager;
54 extern unsigned long burst_length;
55 extern struct cManagerNode cManager;
56 extern struct policer_params *oper_policer_params, *luser_policer_params;
57 extern server_link_func_t *slf_list;
58 extern unsigned int slf_size, slf_used;
59 extern new_user_func_t *nuf_list;
60 extern unsigned int nuf_size, nuf_used;
61 extern del_user_func_t *duf_list;
62 extern unsigned int duf_size, duf_used;
63 extern unsigned long boot_time;
65 void received_ping(void);
67 static int replay_read(void);
68 static dict_t irc_func_dict;
70 typedef void (*foreach_chanfunc) (struct chanNode *chan, void *data);
71 typedef void (*foreach_nonchan) (char *name, void *data);
72 typedef void (*foreach_userfunc) (struct userNode *user, void *data);
73 typedef void (*foreach_nonuser) (char *name, void *data);
74 static void parse_foreach(char *target_list, foreach_chanfunc cf, foreach_nonchan nc, foreach_userfunc uf, foreach_nonuser nu, void *data);
77 uplink_readable(struct io_fd *fd) {
78 static char buffer[MAXLEN];
82 pos = ioset_line_read(fd, buffer, sizeof(buffer));
87 if ((eol = strpbrk(buffer, "\r\n")))
89 log_replay(MAIN_LOG, false, buffer);
90 if (cManager.uplink->state != DISCONNECTED)
91 parse_line(buffer, 0);
96 socket_destroyed(struct io_fd *fd)
98 if (fd && fd->state != IO_CONNECTED)
99 log_module(MAIN_LOG, LOG_ERROR, "Connection to server lost.");
101 cManager.uplink->state = DISCONNECTED;
103 DelServer(self->uplink, 0, NULL);
106 void replay_event_loop(void)
108 while (!quit_services) {
109 if (!replay_connected) {
110 /* this time fudging is to get some of the logging right */
111 self->link_time = self->boot = now;
112 cManager.uplink->state = AUTHENTICATING;
113 irc_introduce(cManager.uplink->password);
114 replay_connected = 1;
115 } else if (!replay_read()) {
116 log_module(MAIN_LOG, LOG_ERROR, "Connection to server lost.");
124 create_socket_client(struct uplinkNode *target)
126 int port = target->port;
127 const char *addr = target->host;
130 return feof(replay_file) ? 0 : 1;
133 /* Leave the existing socket open, say we failed. */
134 log_module(MAIN_LOG, LOG_ERROR, "Refusing to create second connection to %s:%d.", addr, port);
138 log_module(MAIN_LOG, LOG_INFO, "Connecting to %s:%i...", addr, port);
140 socket_io_fd = ioset_connect(cManager.uplink->bind_addr, cManager.uplink->bind_addr_len, addr, port, 1, 0, NULL);
142 log_module(MAIN_LOG, LOG_ERROR, "Connection to uplink failed: %s (%d)", strerror(errno), errno);
143 target->state = DISCONNECTED;
147 socket_io_fd->readable_cb = uplink_readable;
148 socket_io_fd->destroy_cb = socket_destroyed;
149 socket_io_fd->line_reads = 1;
150 log_module(MAIN_LOG, LOG_INFO, "Connection to server established.");
151 cManager.uplink = target;
152 target->state = AUTHENTICATING;
158 replay_read_line(void)
161 unsigned long new_time;
163 if (replay_line[0]) return;
165 if (!fgets(replay_line, sizeof(replay_line), replay_file)) {
166 if (feof(replay_file)) {
168 memset(replay_line, 0, sizeof(replay_line));
172 if ((replay_line[0] != '[')
173 || (replay_line[3] != ':')
174 || (replay_line[6] != ':')
175 || (replay_line[9] != ' ')
176 || (replay_line[12] != '/')
177 || (replay_line[15] != '/')
178 || (replay_line[20] != ']')
179 || (replay_line[21] != ' ')) {
180 log_module(MAIN_LOG, LOG_ERROR, "Unrecognized timestamp in replay file: %s", replay_line);
183 timestamp.tm_hour = strtoul(replay_line+1, NULL, 10);
184 timestamp.tm_min = strtoul(replay_line+4, NULL, 10);
185 timestamp.tm_sec = strtoul(replay_line+7, NULL, 10);
186 timestamp.tm_mon = strtoul(replay_line+10, NULL, 10) - 1;
187 timestamp.tm_mday = strtoul(replay_line+13, NULL, 10);
188 timestamp.tm_year = strtoul(replay_line+16, NULL, 10) - 1900;
189 timestamp.tm_isdst = 0;
190 new_time = mktime(×tamp);
191 if (new_time == (unsigned long)-1) {
192 log_module(MAIN_LOG, LOG_ERROR, "Unable to parse time struct tm_sec=%d tm_min=%d tm_hour=%d tm_mday=%d tm_mon=%d tm_year=%d", timestamp.tm_sec, timestamp.tm_min, timestamp.tm_hour, timestamp.tm_mday, timestamp.tm_mon, timestamp.tm_year);
197 if (strncmp(replay_line+22, "(info) ", 7))
206 char read_line[MAXLEN];
209 /* if it's a sent line, break out to handle it */
210 if (!strncmp(replay_line+29, " ", 3))
212 if (!strncmp(replay_line+29, "W: ", 3)) {
213 log_module(MAIN_LOG, LOG_ERROR, "Expected response from services: %s", replay_line+32);
219 log_replay(MAIN_LOG, false, replay_line+32);
220 safestrncpy(read_line, replay_line+32, sizeof(read_line));
221 len = strlen(read_line);
222 if (read_line[len-1] == '\n')
223 read_line[--len] = 0;
225 parse_line(read_line, 0);
231 replay_write(char *text)
234 if (strncmp(replay_line+29, "W: ", 3)) {
235 log_module(MAIN_LOG, LOG_ERROR, "Unexpected output during replay: %s", text);
238 if (strcmp(replay_line+32, text)) {
239 log_module(MAIN_LOG, LOG_ERROR, "Incorrect output during replay:\nReceived: %sExpected: %s", text, replay_line+32);
241 log_replay(MAIN_LOG, true, text);
247 void putsock(const char *text, ...) PRINTF_LIKE(1, 2);
250 putsock(const char *text, ...)
256 if (!cManager.uplink || cManager.uplink->state == DISCONNECTED) return;
258 va_start(arg_list, text);
259 pos = vsnprintf(buffer, MAXLEN - 2, text, arg_list);
261 if (pos < 0 || pos > (MAXLEN - 2)) pos = MAXLEN - 2;
264 log_replay(MAIN_LOG, true, buffer);
265 buffer[pos++] = '\n';
267 ioset_write(socket_io_fd, buffer, pos);
269 replay_write(buffer);
277 replay_connected = 0;
278 socket_destroyed(socket_io_fd);
280 ioset_close(socket_io_fd, 3);
285 #define CMD_FUNC(NAME) int NAME(UNUSED_ARG(const char *origin), UNUSED_ARG(unsigned int argc), UNUSED_ARG(char **argv))
286 typedef CMD_FUNC(cmd_func_t);
288 static void timed_ping_timeout(void *data);
290 /* Ping state is kept in the timeq (only one of these two can be in
291 * the queue at any given time). */
293 timed_send_ping(UNUSED_ARG(void *data))
295 irc_ping(self->name);
296 timeq_add(now + ping_timeout, timed_ping_timeout, 0);
300 timed_ping_timeout(UNUSED_ARG(void *data))
302 /* Uplink "health" tracking could be accomplished by counting the
303 number of ping timeouts that happen for each uplink. After the
304 timeouts per time period exceeds some amount, the uplink could
305 be marked as unavalable.*/
306 irc_squit(self, "Ping timeout.", NULL);
309 static CMD_FUNC(cmd_pass)
311 const char *true_pass;
315 true_pass = cManager.uplink->their_password;
316 if (true_pass && strcmp(true_pass, argv[1])) {
317 /* It might be good to mark the uplink as unavailable when
318 this happens, though there should be a way of resetting
320 irc_squit(self, "Incorrect password received.", NULL);
324 cManager.uplink->state = BURSTING;
328 static CMD_FUNC(cmd_dummy)
330 /* we don't care about these messages */
334 static CMD_FUNC(cmd_error)
336 if (argv[1]) log_module(MAIN_LOG, LOG_ERROR, "Error from ircd: %s", argv[1]);
337 log_module(MAIN_LOG, LOG_ERROR, "Error received from uplink, squitting.");
339 if (cManager.uplink->state != CONNECTED) {
340 /* Error messages while connected should be fine. */
341 cManager.uplink->flags |= UPLINK_UNAVAILABLE;
342 log_module(MAIN_LOG, LOG_ERROR, "Disabling uplink.");
349 static CMD_FUNC(cmd_stats)
355 if (!(un = GetUserH(origin)))
357 switch (argv[1][0]) {
359 unsigned long uptime;
360 uptime = now - boot_time;
361 irc_numeric(un, RPL_STATSUPTIME, ":Server Up %d days %d:%02d:%02d",
362 uptime/(24*60*60), (uptime/(60*60))%24, (uptime/60)%60, uptime%60);
363 irc_numeric(un, RPL_MAXCONNECTIONS, ":Highest connection count: %d (%d clients)",
364 self->max_clients+1, self->max_clients);
367 default: /* unrecognized/unhandled stats output */ break;
369 irc_numeric(un, 219, "%s :End of /STATS report", argv[1]);
373 static CMD_FUNC(cmd_version)
375 struct userNode *user;
376 if (!(user = GetUserH(origin))) {
377 log_module(MAIN_LOG, LOG_ERROR, "Could not find VERSION origin user %s", origin);
380 irc_numeric(user, 351, "%s.%s %s :%s", PACKAGE_TARNAME, PACKAGE_VERSION, self->name, CODENAME);
384 static CMD_FUNC(cmd_admin)
386 struct userNode *user;
387 struct string_list *slist;
389 if (!(user = GetUserH(origin))) {
390 log_module(MAIN_LOG, LOG_ERROR, "Could not find ADMIN origin user %s", origin);
393 if ((slist = conf_get_data("server/admin", RECDB_STRING_LIST)) && slist->used) {
396 irc_numeric(user, 256, ":Administrative info about %s", self->name);
397 for (i = 0; i < slist->used && i < 3; i++)
398 irc_numeric(user, 257 + i, ":%s", slist->list[i]);
400 irc_numeric(user, 423, ":No administrative info available");
406 recalc_bursts(struct server *eob_server)
409 eob_server->burst = eob_server->self_burst;
410 if (eob_server->uplink != self)
411 eob_server->burst = eob_server->burst || eob_server->uplink->burst;
412 for (nn=0; nn < eob_server->children.used; nn++)
413 recalc_bursts(eob_server->children.list[nn]);
416 static struct chanmsg_func {
418 struct userNode *service;
419 } chanmsg_funcs[256]; /* indexed by trigger character */
421 static struct allchanmsg_func {
423 struct userNode *service;
424 } allchanmsg_funcs[ALLCHANMSG_FUNCS_MAX];
426 struct privmsg_desc {
427 struct userNode *user;
429 unsigned int is_notice : 1;
430 unsigned int is_qualified : 1;
434 privmsg_chan_helper(struct chanNode *cn, void *data)
436 extern unsigned short offchannel_allowed[256];
437 struct privmsg_desc *pd = data;
439 struct chanmsg_func *cf;
442 /* Don't complain if it can't find the modeNode because the channel might
444 if ((mn = GetUserMode(cn, pd->user)))
445 mn->idle_since = now;
447 /* Never send a NOTICE to a channel to one of the services */
448 cf = &chanmsg_funcs[(unsigned char)pd->text[0]];
449 if (cf->func && !pd->is_notice
450 && (offchannel_allowed[(unsigned char)pd->text[0]]
451 || (GetUserMode(cn, cf->service) && !IsDeaf(cf->service))))
452 cf->func(pd->user, cn, pd->text+1, cf->service, pd->is_notice);
454 spamserv_channel_message(cn, pd->user, pd->text);
456 /* This catches *all* text sent to the channel that the services server sees */
457 for (x = 0; x < ALLCHANMSG_FUNCS_MAX; x++) {
458 cf = (struct chanmsg_func *)&allchanmsg_funcs[x];
460 break; /* end of list */
462 cf->func(pd->user, cn, pd->text, cf->service, pd->is_notice);
467 privmsg_invalid(char *name, void *data)
469 struct privmsg_desc *pd = data;
473 irc_numeric(pd->user, ERR_NOSUCHNICK, "%s@%s :No such nick", name, self->name);
477 struct userNode *user;
482 part_helper(struct chanNode *cn, void *data)
484 struct part_desc *desc = data;
485 DelChannelUser(desc->user, cn, desc->text, false);
486 if (IsOper(desc->user))
487 operpart(cn, desc->user);
490 static CMD_FUNC(cmd_part)
492 struct part_desc desc;
496 desc.user = GetUserH(origin);
499 desc.text = (argc > 2) ? argv[argc - 1] : NULL;
500 parse_foreach(argv[1], part_helper, NULL, NULL, NULL, &desc);
505 reg_chanmsg_func(unsigned char prefix, struct userNode *service, chanmsg_func_t handler)
507 if (chanmsg_funcs[prefix].func)
508 log_module(MAIN_LOG, LOG_WARNING, "Re-registering new chanmsg handler for character `%c'.", prefix);
509 chanmsg_funcs[prefix].func = handler;
510 chanmsg_funcs[prefix].service = service;
514 reg_allchanmsg_func(struct userNode *service, chanmsg_func_t handler)
517 for (x = 0; x < ALLCHANMSG_FUNCS_MAX; x++) {
518 if (allchanmsg_funcs[x].func)
520 allchanmsg_funcs[x].func = handler;
521 allchanmsg_funcs[x].service = service;
527 get_chanmsg_bot(unsigned char prefix)
529 return chanmsg_funcs[prefix].service;
532 static mode_change_func_t *mcf_list;
533 static unsigned int mcf_size = 0, mcf_used = 0;
536 reg_mode_change_func(mode_change_func_t handler)
538 if (mcf_used == mcf_size) {
541 mcf_list = realloc(mcf_list, mcf_size*sizeof(mode_change_func_t));
544 mcf_list = malloc(mcf_size*sizeof(mode_change_func_t));
547 mcf_list[mcf_used++] = handler;
550 static oper_func_t *of_list;
551 static unsigned int of_size = 0, of_used = 0;
554 reg_oper_func(oper_func_t handler)
556 if (of_used == of_size) {
559 of_list = realloc(of_list, of_size*sizeof(oper_func_t));
562 of_list = malloc(of_size*sizeof(oper_func_t));
565 of_list[of_used++] = handler;
569 call_oper_funcs(struct userNode *user)
574 for (n=0; (n<of_used) && !user->dead; n++)
580 struct mod_chanmode *
581 mod_chanmode_alloc(unsigned int argc)
583 struct mod_chanmode *res;
585 res = calloc(1, sizeof(*res) + (argc-1)*sizeof(res->args[0]));
587 res = calloc(1, sizeof(*res));
590 res->alloc_argc = argc;
597 struct mod_chanmode *
598 mod_chanmode_dup(struct mod_chanmode *orig, unsigned int extra)
600 struct mod_chanmode *res;
601 res = mod_chanmode_alloc(orig->argc + extra);
603 res->modes_set = orig->modes_set;
604 res->modes_clear = orig->modes_clear;
605 res->new_limit = orig->new_limit;
606 res->new_access = orig->new_access;
607 memcpy(res->new_altchan, orig->new_altchan, sizeof(res->new_altchan));
608 memcpy(res->new_noflood, orig->new_noflood, sizeof(res->new_noflood));
609 memcpy(res->new_key, orig->new_key, sizeof(res->new_key));
610 memcpy(res->new_upass, orig->new_upass, sizeof(res->new_upass));
611 memcpy(res->new_apass, orig->new_apass, sizeof(res->new_apass));
612 res->argc = orig->argc;
613 memcpy(res->args, orig->args, orig->argc*sizeof(orig->args[0]));
619 mod_chanmode_apply(struct userNode *who, struct chanNode *channel, struct mod_chanmode *change)
624 assert(change->argc <= change->alloc_argc);
625 channel->modes = (channel->modes & ~change->modes_clear) | change->modes_set;
626 if (change->modes_set & MODE_LIMIT)
627 channel->limit = change->new_limit;
628 if (change->modes_set & MODE_ACCESS)
629 channel->access = change->new_access;
630 if (change->modes_set & MODE_KEY)
631 strcpy(channel->key, change->new_key);
632 if (change->modes_set & MODE_ALTCHAN)
633 strcpy(channel->altchan, change->new_altchan);
634 if (change->modes_set & MODE_NOFLOOD)
635 strcpy(channel->noflood, change->new_noflood);
636 if (change->modes_set & MODE_UPASS)
637 strcpy(channel->upass, change->new_upass);
638 if (change->modes_set & MODE_APASS)
639 strcpy(channel->apass, change->new_apass);
640 for (ii = 0; ii < change->argc; ++ii) {
641 switch (change->args[ii].mode) {
643 /* If any existing ban is a subset of the new ban,
644 * silently remove it. The new ban is not allowed
645 * to be more specific than an existing ban.
647 for (jj=0; jj<channel->banlist.used; ++jj) {
648 bn = channel->banlist.list[jj];
649 if (match_ircglobs(change->args[ii].u.hostmask, bn->ban)) {
650 banList_remove(&channel->banlist, bn);
655 bn = calloc(1, sizeof(*bn));
656 safestrncpy(bn->ban, change->args[ii].u.hostmask, sizeof(bn->ban));
658 safestrncpy(bn->who, who->nick, sizeof(bn->who));
660 safestrncpy(bn->who, "<unknown>", sizeof(bn->who));
662 banList_append(&channel->banlist, bn);
664 case MODE_REMOVE|MODE_BAN:
665 for (jj=0; jj<channel->banlist.used; ++jj) {
666 bn = channel->banlist.list[jj];
667 if (strcmp(bn->ban, change->args[ii].u.hostmask))
670 banList_remove(&channel->banlist, bn);
676 case MODE_VOICE|MODE_CHANOP:
677 case MODE_REMOVE|MODE_CHANOP:
678 case MODE_REMOVE|MODE_VOICE:
679 case MODE_REMOVE|MODE_VOICE|MODE_CHANOP:
680 if (change->args[ii].mode & MODE_REMOVE)
681 change->args[ii].u.member->modes &= ~change->args[ii].mode;
683 change->args[ii].u.member->modes |= change->args[ii].mode;
686 assert(0 && "Invalid mode argument");
693 mod_chanmode_free(struct mod_chanmode *change)
699 mod_chanmode(struct userNode *who, struct chanNode *channel, char **modes, unsigned int argc, unsigned int flags)
701 struct modeNode *member;
702 struct mod_chanmode *change;
706 if (!modes || !modes[0])
708 if (who && (member = GetUserMode(channel, who)))
709 base_oplevel = member->oplevel;
711 base_oplevel = MAXOPLEVEL;
712 if (!(change = mod_chanmode_parse(channel, modes, argc, flags, base_oplevel)))
714 if (flags & MC_ANNOUNCE)
715 mod_chanmode_announce(who, channel, change);
717 mod_chanmode_apply(who, channel, change);
718 if (flags & MC_NOTIFY)
719 for (ii = 0; ii < mcf_used; ++ii)
720 mcf_list[ii](channel, who, change);
721 mod_chanmode_free(change);
726 irc_make_chanmode(struct chanNode *chan, char *out)
728 struct mod_chanmode change;
729 mod_chanmode_init(&change);
730 change.modes_set = chan->modes;
731 change.new_limit = chan->limit;
732 change.new_access = chan->access;
733 safestrncpy(change.new_altchan, chan->altchan, sizeof(change.new_altchan));
734 safestrncpy(change.new_noflood, chan->noflood, sizeof(change.new_noflood));
735 safestrncpy(change.new_key, chan->key, sizeof(change.new_key));
736 safestrncpy(change.new_upass, chan->upass, sizeof(change.new_upass));
737 safestrncpy(change.new_apass, chan->apass, sizeof(change.new_apass));
738 return strlen(mod_chanmode_format(&change, out));
742 generate_hostmask(struct userNode *user, int options)
745 char *nickname, *ident, *hostname, *mask;
748 /* figure out string parts */
749 if (options & GENMASK_OMITNICK)
751 else if (options & GENMASK_USENICK)
752 nickname = user->nick;
755 if (options & GENMASK_STRICT_IDENT)
757 else if (options & GENMASK_ANY_IDENT)
759 else if (IsFakeIdent(user) && IsHiddenHost(user) && !(options & GENMASK_NO_HIDING))
760 ident = user->fakeident;
762 ident = alloca(strlen(user->ident)+2);
764 strcpy(ident+1, user->ident + ((*user->ident == '~')?1:0));
766 hostname = user->hostname;
767 if (IsFakeHost(user) && IsHiddenHost(user) && !(options & GENMASK_NO_HIDING)) {
768 if(user->fakehost && user->fakehost[0] == '$') {
769 hostname = alloca(strlen(user->handle_info->handle) + strlen(user->fakehost));
770 sprintf(hostname, "%s%s", user->handle_info->handle, user->fakehost+1);
772 hostname = user->fakehost;
774 } else if (IsHiddenHost(user) && user->handle_info && hidden_host_suffix && !(options & GENMASK_NO_HIDING)) {
775 hostname = alloca(strlen(user->handle_info->handle) + strlen(hidden_host_suffix) + 2);
776 sprintf(hostname, "%s.%s", user->handle_info->handle, hidden_host_suffix);
777 } else if (options & GENMASK_STRICT_HOST) {
778 if (options & GENMASK_BYIP)
779 hostname = (char*)irc_ntoa(&user->ip);
780 } else if ((options & GENMASK_BYIP) || irc_pton(&ip, NULL, hostname)) {
781 /* Should generate an IP-based hostmask. */
782 hostname = alloca(IRC_NTOP_MAX_SIZE);
783 hostname[IRC_NTOP_MAX_SIZE-1] = '\0';
784 if (irc_in_addr_is_ipv4(user->ip)) {
785 /* By popular acclaim, a /16 hostmask is used. */
786 sprintf(hostname, "%d.%d.*", user->ip.in6_8[12], user->ip.in6_8[13]);
787 } else if (irc_in_addr_is_ipv6(user->ip)) {
788 /* Who knows what the default mask should be? Use a /48 to start with. */
789 sprintf(hostname, "%x:%x:%x:*", ntohs(user->ip.in6[0]), ntohs(user->ip.in6[1]), ntohs(user->ip.in6[2]));
791 /* Unknown type; just copy IP directly. */
792 irc_ntop(hostname, IRC_NTOP_MAX_SIZE, &user->ip);
796 /* This heuristic could be made smarter. Is it worth the effort? */
797 for (ii=cnt=0; hostname[ii]; ii++)
798 if (hostname[ii] == '.')
800 if (cnt == 0 || cnt == 1) {
801 /* only a one- or two-level domain name; leave hostname */
802 } else if (cnt == 2) {
803 for (ii=0; user->hostname[ii] != '.'; ii++) ;
804 /* Add 3 to account for the *. and \0. */
805 hostname = alloca(strlen(user->hostname+ii)+3);
806 sprintf(hostname, "*.%s", user->hostname+ii+1);
808 for (cnt=3, ii--; cnt; ii--)
809 if (user->hostname[ii] == '.')
811 /* The loop above will overshoot the dot one character;
812 we skip forward two (the one character and the dot)
813 when printing, so we only add one for the \0. */
814 hostname = alloca(strlen(user->hostname+ii)+1);
815 sprintf(hostname, "*.%s", user->hostname+ii+2);
819 len = strlen(ident) + strlen(hostname) + 2;
821 len += strlen(nickname) + 1;
823 sprintf(mask, "%s!%s@%s", nickname, ident, hostname);
826 sprintf(mask, "%s@%s", ident, hostname);
832 IsChannelName(const char *name) {
837 for (ii=1; name[ii]; ++ii) {
838 if ((name[ii] > 0) && (name[ii] <= 32))
842 if (name[ii] == '\xa0')
849 irc_user_modes(const struct userNode *user, char modes[], size_t length)
853 for (ii = jj = 0; (jj < length) && (irc_user_mode_chars[ii] != '\0'); ++ii) {
854 if ((user->modes & (1 << ii)) && (irc_user_mode_chars[ii] != ' '))
855 modes[jj++] = irc_user_mode_chars[ii];