X-Git-Url: http://git.pk910.de/?p=ircu2.10.12-pk.git;a=blobdiff_plain;f=ircd%2Fs_user.c;fp=ircd%2Fs_user.c;h=1f0e0d92ddd990ff543c0445af741d7d72464555;hp=0000000000000000000000000000000000000000;hb=0400a5a6479398d82526785c18c0df8bc8b92dce;hpb=d17e10da972ce5776c60b4c317267c6abe0e1ead diff --git a/ircd/s_user.c b/ircd/s_user.c new file mode 100644 index 0000000..1f0e0d9 --- /dev/null +++ b/ircd/s_user.c @@ -0,0 +1,1502 @@ +/* + * IRC - Internet Relay Chat, ircd/s_user.c (formerly ircd/s_msg.c) + * Copyright (C) 1990 Jarkko Oikarinen and + * University of Oulu, Computing Center + * + * 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. + */ +/** @file + * @brief Miscellaneous user-related helper functions. + * @version $Id$ + */ +#include "config.h" + +#include "s_user.h" +#include "IPcheck.h" +#include "channel.h" +#include "class.h" +#include "client.h" +#include "hash.h" +#include "ircd.h" +#include "ircd_alloc.h" +#include "ircd_chattr.h" +#include "ircd_features.h" +#include "ircd_log.h" +#include "ircd_reply.h" +#include "ircd_snprintf.h" +#include "ircd_string.h" +#include "list.h" +#include "match.h" +#include "motd.h" +#include "msg.h" +#include "msgq.h" +#include "numeric.h" +#include "numnicks.h" +#include "parse.h" +#include "querycmds.h" +#include "random.h" +#include "s_auth.h" +#include "s_bsd.h" +#include "s_conf.h" +#include "s_debug.h" +#include "s_misc.h" +#include "s_serv.h" /* max_client_count */ +#include "send.h" +#include "struct.h" +#include "supported.h" +#include "sys.h" +#include "userload.h" +#include "version.h" +#include "whowas.h" + +#include "handlers.h" /* m_motd and m_lusers */ + +/* #include -- Now using assert in ircd_log.h */ +#include +#include +#include +#include +#include + +/** Count of allocated User structures. */ +static int userCount = 0; + +/** Makes sure that \a cptr has a User information block. + * If cli_user(cptr) != NULL, does nothing. + * @param[in] cptr Client to attach User struct to. + * @return User struct associated with \a cptr. + */ +struct User *make_user(struct Client *cptr) +{ + assert(0 != cptr); + + if (!cli_user(cptr)) { + cli_user(cptr) = (struct User*) MyMalloc(sizeof(struct User)); + assert(0 != cli_user(cptr)); + + /* All variables are 0 by default */ + memset(cli_user(cptr), 0, sizeof(struct User)); + ++userCount; + cli_user(cptr)->refcnt = 1; + } + return cli_user(cptr); +} + +/** Dereference \a user. + * User structures are reference-counted; if the refcount of \a user + * becomes zero, free it. + * @param[in] user User to dereference. + */ +void free_user(struct User* user) +{ + assert(0 != user); + assert(0 < user->refcnt); + + if (--user->refcnt == 0) { + if (user->away) + MyFree(user->away); + /* + * sanity check + */ + assert(0 == user->joined); + assert(0 == user->invited); + assert(0 == user->channel); + + MyFree(user); + assert(userCount>0); + --userCount; + } +} + +/** Find number of User structs allocated and memory used by them. + * @param[out] count_out Receives number of User structs allocated. + * @param[out] bytes_out Receives number of bytes used by User structs. + */ +void user_count_memory(size_t* count_out, size_t* bytes_out) +{ + assert(0 != count_out); + assert(0 != bytes_out); + *count_out = userCount; + *bytes_out = userCount * sizeof(struct User); +} + + +/** Find the next client (starting at \a next) with a name that matches \a ch. + * Normal usage loop is: + * for (x = client; x = next_client(x,mask); x = x->next) + * HandleMatchingClient; + * + * @param[in] next First client to check. + * @param[in] ch Name mask to check against. + * @return Next matching client found, or NULL if none. + */ +struct Client *next_client(struct Client *next, const char* ch) +{ + struct Client *tmp = next; + + if (!tmp) + return NULL; + + next = FindClient(ch); + next = next ? next : tmp; + if (cli_prev(tmp) == next) + return NULL; + if (next != tmp) + return next; + for (; next; next = cli_next(next)) + if (!match(ch, cli_name(next))) + break; + return next; +} + +/** Find the destination server for a command, and forward it if that is not us. + * + * \a server may be a nickname, server name, server mask (if \a from + * is a local user) or server numnick (if \a is a server or remote + * user). + * + * @param[in] from Client that sent the command to us. + * @param[in] cmd Long-form command text. + * @param[in] tok Token-form command text. + * @param[in] one Client that originated the command (ignored). + * @param[in] MustBeOper If non-zero and \a from is not an operator, return HUNTED_NOSUCH. + * @param[in] pattern Format string of arguments to command. + * @param[in] server Index of target name or mask in \a parv. + * @param[in] parc Number of valid elements in \a parv (must be less than 9). + * @param[in] parv Array of arguments to command. + * @return One of HUNTED_ISME, HUNTED_NOSUCH or HUNTED_PASS. + */ +int hunt_server_cmd(struct Client *from, const char *cmd, const char *tok, + struct Client *one, int MustBeOper, const char *pattern, + int server, int parc, char *parv[]) +{ + struct Client *acptr; + char *to; + + /* Assume it's me, if no server or an unregistered client */ + if (parc <= server || EmptyString((to = parv[server])) || IsUnknown(from)) + return (HUNTED_ISME); + + if (MustBeOper && !IsPrivileged(from)) + { + send_reply(from, ERR_NOPRIVILEGES); + return HUNTED_NOSUCH; + } + + /* Make sure it's a server */ + if (MyUser(from)) { + /* Make sure it's a server */ + if (!strchr(to, '*')) { + if (0 == (acptr = FindClient(to))) { + send_reply(from, ERR_NOSUCHSERVER, to); + return HUNTED_NOSUCH; + } + + if (cli_user(acptr)) + acptr = cli_user(acptr)->server; + } else if (!(acptr = find_match_server(to))) { + send_reply(from, ERR_NOSUCHSERVER, to); + return (HUNTED_NOSUCH); + } + } else if (!(acptr = FindNServer(to))) { + send_reply(from, SND_EXPLICIT | ERR_NOSUCHSERVER, "* :Server has disconnected"); + return (HUNTED_NOSUCH); /* Server broke off in the meantime */ + } + + if (IsMe(acptr)) + return (HUNTED_ISME); + + if (MustBeOper && !IsPrivileged(from)) { + send_reply(from, ERR_NOPRIVILEGES); + return HUNTED_NOSUCH; + } + + /* assert(!IsServer(from)); */ + + parv[server] = (char *) acptr; /* HACK! HACK! HACK! ARGH! */ + + sendcmdto_one(from, cmd, tok, acptr, pattern, parv[1], parv[2], parv[3], + parv[4], parv[5], parv[6], parv[7], parv[8]); + + return (HUNTED_PASS); +} + +/** Find the destination server for a command, and forward it (as a + * high-priority command) if that is not us. + * + * \a server may be a nickname, server name, server mask (if \a from + * is a local user) or server numnick (if \a is a server or remote + * user). + * Unlike hunt_server_cmd(), this appends the message to the + * high-priority message queue for the destination server. + * + * @param[in] from Client that sent the command to us. + * @param[in] cmd Long-form command text. + * @param[in] tok Token-form command text. + * @param[in] one Client that originated the command (ignored). + * @param[in] MustBeOper If non-zero and \a from is not an operator, return HUNTED_NOSUCH. + * @param[in] pattern Format string of arguments to command. + * @param[in] server Index of target name or mask in \a parv. + * @param[in] parc Number of valid elements in \a parv (must be less than 9). + * @param[in] parv Array of arguments to command. + * @return One of HUNTED_ISME, HUNTED_NOSUCH or HUNTED_PASS. + */ +int hunt_server_prio_cmd(struct Client *from, const char *cmd, const char *tok, + struct Client *one, int MustBeOper, + const char *pattern, int server, int parc, + char *parv[]) +{ + struct Client *acptr; + char *to; + + /* Assume it's me, if no server or an unregistered client */ + if (parc <= server || EmptyString((to = parv[server])) || IsUnknown(from)) + return (HUNTED_ISME); + + /* Make sure it's a server */ + if (MyUser(from)) { + /* Make sure it's a server */ + if (!strchr(to, '*')) { + if (0 == (acptr = FindClient(to))) { + send_reply(from, ERR_NOSUCHSERVER, to); + return HUNTED_NOSUCH; + } + + if (cli_user(acptr)) + acptr = cli_user(acptr)->server; + } else if (!(acptr = find_match_server(to))) { + send_reply(from, ERR_NOSUCHSERVER, to); + return (HUNTED_NOSUCH); + } + } else if (!(acptr = FindNServer(to))) + return (HUNTED_NOSUCH); /* Server broke off in the meantime */ + + if (IsMe(acptr)) + return (HUNTED_ISME); + + if (MustBeOper && !IsPrivileged(from)) { + send_reply(from, ERR_NOPRIVILEGES); + return HUNTED_NOSUCH; + } + + /* assert(!IsServer(from)); SETTIME to particular destinations permitted */ + + parv[server] = (char *) acptr; /* HACK! HACK! HACK! ARGH! */ + + sendcmdto_prio_one(from, cmd, tok, acptr, pattern, parv[1], parv[2], parv[3], + parv[4], parv[5], parv[6], parv[7], parv[8]); + + return (HUNTED_PASS); +} + + +/* + * register_user + * + * This function is called when both NICK and USER messages + * have been accepted for the client, in whatever order. Only + * after this the USER message is propagated. + * + * NICK's must be propagated at once when received, although + * it would be better to delay them too until full info is + * available. Doing it is not so simple though, would have + * to implement the following: + * + * 1) user telnets in and gives only "NICK foobar" and waits + * 2) another user far away logs in normally with the nick + * "foobar" (quite legal, as this server didn't propagate it). + * 3) now this server gets nick "foobar" from outside, but + * has already the same defined locally. Current server + * would just issue "KILL foobar" to clean out dups. But, + * this is not fair. It should actually request another + * nick from local user or kill him/her... + */ +/** Finish registering a user who has sent both NICK and USER. + * For local connections, possibly check IAuth; make sure there is a + * matching Client config block; clean the username field; check + * K/k-lines; check for "hacked" looking usernames; assign a numnick; + * and send greeting (WELCOME, ISUPPORT, MOTD, etc). + * For all connections, update the invisible user and operator counts; + * run IPcheck against their address; and forward the NICK. + * + * @param[in] cptr Client who introduced the user. + * @param[in,out] sptr Client who has been fully introduced. + * @return Zero or CPTR_KILLED. + */ +int register_user(struct Client *cptr, struct Client *sptr) +{ + char* parv[4]; + char* tmpstr; + struct User* user = cli_user(sptr); + char ip_base64[25]; + + user->last = CurrentTime; + parv[0] = cli_name(sptr); + parv[1] = parv[2] = NULL; + + if (MyConnect(sptr)) + { + assert(cptr == sptr); + + Count_unknownbecomesclient(sptr, UserStats); + + /* + * Set user's initial modes + */ + tmpstr = (char*)client_get_default_umode(sptr); + if (tmpstr) { + char *umodev[] = { NULL, NULL, NULL, NULL }; + umodev[2] = tmpstr; + set_user_mode(cptr, sptr, 3, umodev, ALLOWMODES_ANY); + } + + SetUser(sptr); + cli_handler(sptr) = CLIENT_HANDLER; + SetLocalNumNick(sptr); + send_reply(sptr, + RPL_WELCOME, + feature_str(FEAT_NETWORK), + feature_str(FEAT_PROVIDER) ? " via " : "", + feature_str(FEAT_PROVIDER) ? feature_str(FEAT_PROVIDER) : "", + cli_name(sptr)); + /* + * This is a duplicate of the NOTICE but see below... + */ + send_reply(sptr, RPL_YOURHOST, cli_name(&me), version); + send_reply(sptr, RPL_CREATED, creation); + send_reply(sptr, RPL_MYINFO, cli_name(&me), version, infousermodes, + infochanmodes, infochanmodeswithparams); + send_supported(sptr); + m_lusers(sptr, sptr, 1, parv); + update_load(); + motd_signon(sptr); + if (cli_snomask(sptr) & SNO_NOISY) + set_snomask(sptr, cli_snomask(sptr) & SNO_NOISY, SNO_ADD); + if (feature_bool(FEAT_CONNEXIT_NOTICES)) + sendto_opmask_butone(0, SNO_CONNEXIT, + "Client connecting: %s (%s@%s) [%s] {%s} [%s] <%s%s>", + cli_name(sptr), user->username, user->host, + cli_sock_ip(sptr), get_client_class(sptr), + cli_info(sptr), NumNick(cptr) /* two %s's */); + + IPcheck_connect_succeeded(sptr); + } + else { + struct Client *acptr = user->server; + + if (cli_from(acptr) != cli_from(sptr)) + { + sendcmdto_one(&me, CMD_KILL, cptr, "%C :%s (%s != %s[%s])", + sptr, cli_name(&me), cli_name(user->server), cli_name(cli_from(acptr)), + cli_sockhost(cli_from(acptr))); + SetFlag(sptr, FLAG_KILLED); + return exit_client(cptr, sptr, &me, "NICK server wrong direction"); + } + else if (HasFlag(acptr, FLAG_TS8)) + SetFlag(sptr, FLAG_TS8); + + /* + * Check to see if this user is being propagated + * as part of a net.burst, or is using protocol 9. + * FIXME: This can be sped up - its stupid to check it for + * every NICK message in a burst again --Run. + */ + for (; acptr != &me; acptr = cli_serv(acptr)->up) + { + if (IsBurst(acptr) || Protocol(acptr) < 10) + break; + } + if (!IPcheck_remote_connect(sptr, (acptr != &me))) + { + /* + * We ran out of bits to count this + */ + sendcmdto_one(&me, CMD_KILL, sptr, "%C :%s (Too many connections from your host -- Ghost)", + sptr, cli_name(&me)); + return exit_client(cptr, sptr, &me,"Too many connections from your host -- throttled"); + } + SetUser(sptr); + } + + /* If they get both +x and an account during registration, hide + * their hostmask here. Calling hide_hostmask() from IAuth's + * account assignment causes a numeric reply during registration. + */ + if (HasHiddenHost(sptr)) + hide_hostmask(sptr, FLAG_HIDDENHOST); + if (IsInvisible(sptr)) + ++UserStats.inv_clients; + if (IsOper(sptr)) + ++UserStats.opers; + + tmpstr = umode_str(sptr); + /* Send full IP address to IPv6-grokking servers. */ + sendcmdto_flag_serv_butone(user->server, CMD_NICK, cptr, + FLAG_IPV6, FLAG_LAST_FLAG, + "%s %d %Tu %s %s %s%s%s%s %s%s :%s", + cli_name(sptr), cli_hopcount(sptr) + 1, + cli_lastnick(sptr), + user->username, user->realhost, + *tmpstr ? "+" : "", tmpstr, *tmpstr ? " " : "", + iptobase64(ip_base64, &cli_ip(sptr), sizeof(ip_base64), 1), + NumNick(sptr), cli_info(sptr)); + /* Send fake IPv6 addresses to pre-IPv6 servers. */ + sendcmdto_flag_serv_butone(user->server, CMD_NICK, cptr, + FLAG_LAST_FLAG, FLAG_IPV6, + "%s %d %Tu %s %s %s%s%s%s %s%s :%s", + cli_name(sptr), cli_hopcount(sptr) + 1, + cli_lastnick(sptr), + user->username, user->realhost, + *tmpstr ? "+" : "", tmpstr, *tmpstr ? " " : "", + iptobase64(ip_base64, &cli_ip(sptr), sizeof(ip_base64), 0), + NumNick(sptr), cli_info(sptr)); + + /* Send user mode to client */ + if (MyUser(sptr)) + { + static struct Flags flags; /* automatically initialized to zeros */ + /* To avoid sending +r to the client due to auth-on-connect, set + * the "old" FLAG_ACCOUNT bit to match the client's value. + */ + if (IsAccount(cptr)) + FlagSet(&flags, FLAG_ACCOUNT); + else + FlagClr(&flags, FLAG_ACCOUNT); + client_set_privs(sptr, NULL); + send_umode(cptr, sptr, &flags, ALL_UMODES); + if ((cli_snomask(sptr) != SNO_DEFAULT) && HasFlag(sptr, FLAG_SERVNOTICE)) + send_reply(sptr, RPL_SNOMASK, cli_snomask(sptr), cli_snomask(sptr)); + } + return 0; +} + +/** List of user mode characters. */ +static const struct UserMode { + unsigned int flag; /**< User mode constant. */ + char c; /**< Character corresponding to the mode. */ +} userModeList[] = { + { FLAG_OPER, 'o' }, + { FLAG_LOCOP, 'O' }, + { FLAG_INVISIBLE, 'i' }, + { FLAG_WALLOP, 'w' }, + { FLAG_SERVNOTICE, 's' }, + { FLAG_DEAF, 'd' }, + { FLAG_CHSERV, 'k' }, + { FLAG_DEBUG, 'g' }, + { FLAG_ACCOUNT, 'r' }, + { FLAG_HIDDENHOST, 'x' } +}; + +/** Length of #userModeList. */ +#define USERMODELIST_SIZE sizeof(userModeList) / sizeof(struct UserMode) + +/* + * XXX - find a way to get rid of this + */ +/** Nasty global buffer used for communications with umode_str() and others. */ +static char umodeBuf[BUFSIZE]; + +/** Try to set a user's nickname. + * If \a sptr is a server, the client is being introduced for the first time. + * @param[in] cptr Client to set nickname. + * @param[in] sptr Client sending the NICK. + * @param[in] nick New nickname. + * @param[in] parc Number of arguments to NICK. + * @param[in] parv Argument list to NICK. + * @return CPTR_KILLED if \a cptr was killed, else 0. + */ +int set_nick_name(struct Client* cptr, struct Client* sptr, + const char* nick, int parc, char* parv[]) +{ + if (IsServer(sptr)) { + + /* + * A server introducing a new client, change source + */ + struct Client* new_client = make_client(cptr, STAT_UNKNOWN); + assert(0 != new_client); + + cli_hopcount(new_client) = atoi(parv[2]); + cli_lastnick(new_client) = atoi(parv[3]); + + /* + * Set new nick name. + */ + strcpy(cli_name(new_client), nick); + cli_user(new_client) = make_user(new_client); + cli_user(new_client)->server = sptr; + SetRemoteNumNick(new_client, parv[parc - 2]); + /* + * IP# of remote client + */ + base64toip(parv[parc - 3], &cli_ip(new_client)); + + add_client_to_list(new_client); + hAddClient(new_client); + + cli_serv(sptr)->ghost = 0; /* :server NICK means end of net.burst */ + ircd_strncpy(cli_username(new_client), parv[4], USERLEN); + ircd_strncpy(cli_user(new_client)->username, parv[4], USERLEN); + ircd_strncpy(cli_user(new_client)->host, parv[5], HOSTLEN); + ircd_strncpy(cli_user(new_client)->realhost, parv[5], HOSTLEN); + ircd_strncpy(cli_info(new_client), parv[parc - 1], REALLEN); + + Count_newremoteclient(UserStats, sptr); + + if (parc > 7 && *parv[6] == '+') { + /* (parc-4) -3 for the ip, numeric nick, realname */ + set_user_mode(cptr, new_client, parc-7, parv+4, ALLOWMODES_ANY); + } + + return register_user(cptr, new_client); + } + else if ((cli_name(sptr))[0]) { + /* + * Client changing its nick + * + * If the client belongs to me, then check to see + * if client is on any channels where it is currently + * banned. If so, do not allow the nick change to occur. + */ + if (MyUser(sptr)) { + const char* channel_name; + struct Membership *member; + if ((channel_name = find_no_nickchange_channel(sptr))) { + return send_reply(cptr, ERR_BANNICKCHANGE, channel_name); + } + /* + * Refuse nick change if the last nick change was less + * then 30 seconds ago. This is intended to get rid of + * clone bots doing NICK FLOOD. -SeKs + * If someone didn't change their nick for more then 60 seconds + * however, allow to do two nick changes immediately after another + * before limiting the nick flood. -Run + */ + if (CurrentTime < cli_nextnick(cptr)) + { + cli_nextnick(cptr) += 2; + send_reply(cptr, ERR_NICKTOOFAST, parv[1], + cli_nextnick(cptr) - CurrentTime); + /* Send error message */ + sendcmdto_one(cptr, CMD_NICK, cptr, "%s", cli_name(cptr)); + /* bounce NICK to user */ + return 0; /* ignore nick change! */ + } + else { + /* Limit total to 1 change per NICK_DELAY seconds: */ + cli_nextnick(cptr) += NICK_DELAY; + /* However allow _maximal_ 1 extra consecutive nick change: */ + if (cli_nextnick(cptr) < CurrentTime) + cli_nextnick(cptr) = CurrentTime; + } + /* Invalidate all bans against the user so we check them again */ + for (member = (cli_user(cptr))->channel; member; + member = member->next_channel) + ClearBanValid(member); + } + /* + * Also set 'lastnick' to current time, if changed. + */ + if (0 != ircd_strcmp(parv[0], nick)) + cli_lastnick(sptr) = (sptr == cptr) ? TStime() : atoi(parv[2]); + + /* + * Client just changing his/her nick. If he/she is + * on a channel, send note of change to all clients + * on that channel. Propagate notice to other servers. + */ + if (IsUser(sptr)) { + sendcmdto_common_channels_butone(sptr, CMD_NICK, NULL, ":%s", nick); + add_history(sptr, 1); + sendcmdto_serv_butone(sptr, CMD_NICK, cptr, "%s %Tu", nick, + cli_lastnick(sptr)); + } + else + sendcmdto_one(sptr, CMD_NICK, sptr, ":%s", nick); + + if ((cli_name(sptr))[0]) + hRemClient(sptr); + strcpy(cli_name(sptr), nick); + hAddClient(sptr); + } + else { + /* Local client setting NICK the first time */ + strcpy(cli_name(sptr), nick); + hAddClient(sptr); + return auth_set_nick(cli_auth(sptr), nick); + } + return 0; +} + +/** Calculate the hash value for a target. + * @param[in] target Pointer to target, cast to unsigned int. + * @return Hash value constructed from the pointer. + */ +static unsigned char hash_target(unsigned int target) +{ + return (unsigned char) (target >> 16) ^ (target >> 8); +} + +/** Records \a target as a recent target for \a sptr. + * @param[in] sptr User who has sent to a new target. + * @param[in] target Target to add. + */ +void +add_target(struct Client *sptr, void *target) +{ + /* Ok, this shouldn't work esp on alpha + */ + unsigned char hash = hash_target((unsigned long) target); + unsigned char* targets; + int i; + assert(0 != sptr); + assert(cli_local(sptr)); + + targets = cli_targets(sptr); + + /* + * Already in table? + */ + for (i = 0; i < MAXTARGETS; ++i) { + if (targets[i] == hash) + return; + } + /* + * New target + */ + memmove(&targets[RESERVEDTARGETS + 1], + &targets[RESERVEDTARGETS], MAXTARGETS - RESERVEDTARGETS - 1); + targets[RESERVEDTARGETS] = hash; +} + +/** Check whether \a sptr can send to or join \a target yet. + * @param[in] sptr User trying to join a channel or send a message. + * @param[in] target Target of the join or message. + * @param[in] name Name of the target. + * @param[in] created If non-zero, trying to join a new channel. + * @return Non-zero if too many target changes; zero if okay to send. + */ +int check_target_limit(struct Client *sptr, void *target, const char *name, + int created) +{ + unsigned char hash = hash_target((unsigned long) target); + int i; + unsigned char* targets; + + assert(0 != sptr); + assert(cli_local(sptr)); + targets = cli_targets(sptr); + + /* + * Same target as last time? + */ + if (targets[0] == hash) + return 0; + for (i = 1; i < MAXTARGETS; ++i) { + if (targets[i] == hash) { + memmove(&targets[1], &targets[0], i); + targets[0] = hash; + return 0; + } + } + /* + * New target + */ + if (!created) { + if (CurrentTime < cli_nexttarget(sptr)) { + /* If user is invited to channel, give him/her a free target */ + if (IsChannelName(name) && IsInvited(sptr, target)) + return 0; + + if (cli_nexttarget(sptr) - CurrentTime < TARGET_DELAY + 8) { + /* + * No server flooding + */ + cli_nexttarget(sptr) += 2; + send_reply(sptr, ERR_TARGETTOOFAST, name, + cli_nexttarget(sptr) - CurrentTime); + } + return 1; + } + else { + cli_nexttarget(sptr) += TARGET_DELAY; + if (cli_nexttarget(sptr) < CurrentTime - (TARGET_DELAY * (MAXTARGETS - 1))) + cli_nexttarget(sptr) = CurrentTime - (TARGET_DELAY * (MAXTARGETS - 1)); + } + } + memmove(&targets[1], &targets[0], MAXTARGETS - 1); + targets[0] = hash; + return 0; +} + +/** Allows a channel operator to avoid target change checks when + * sending messages to users on their channel. + * @param[in] source User sending the message. + * @param[in] nick Destination of the message. + * @param[in] channel Name of channel being sent to. + * @param[in] text Message to send. + * @param[in] is_notice If non-zero, use CNOTICE instead of CPRIVMSG. + */ +/* Added 971023 by Run. */ +int whisper(struct Client* source, const char* nick, const char* channel, + const char* text, int is_notice) +{ + struct Client* dest; + struct Channel* chptr; + struct Membership* membership; + + assert(0 != source); + assert(0 != nick); + assert(0 != channel); + assert(MyUser(source)); + + if (!(dest = FindUser(nick))) { + return send_reply(source, ERR_NOSUCHNICK, nick); + } + if (!(chptr = FindChannel(channel))) { + return send_reply(source, ERR_NOSUCHCHANNEL, channel); + } + /* + * compare both users channel lists, instead of the channels user list + * since the link is the same, this should be a little faster for channels + * with a lot of users + */ + for (membership = cli_user(source)->channel; membership; membership = membership->next_channel) { + if (chptr == membership->channel) + break; + } + if (0 == membership) { + return send_reply(source, ERR_NOTONCHANNEL, chptr->chname); + } + if (!IsVoicedOrOpped(membership)) { + return send_reply(source, ERR_VOICENEEDED, chptr->chname); + } + /* + * lookup channel in destination + */ + assert(0 != cli_user(dest)); + for (membership = cli_user(dest)->channel; membership; membership = membership->next_channel) { + if (chptr == membership->channel) + break; + } + if (0 == membership || IsZombie(membership)) { + return send_reply(source, ERR_USERNOTINCHANNEL, cli_name(dest), chptr->chname); + } + if (is_silenced(source, dest)) + return 0; + + if (is_notice) + sendcmdto_one(source, CMD_NOTICE, dest, "%C :%s", dest, text); + else + { + if (cli_user(dest)->away) + send_reply(source, RPL_AWAY, cli_name(dest), cli_user(dest)->away); + sendcmdto_one(source, CMD_PRIVATE, dest, "%C :%s", dest, text); + } + return 0; +} + + +/** Send a user mode change for \a cptr to neighboring servers. + * @param[in] cptr User whose mode is changing. + * @param[in] sptr Client who sent us the mode change message. + * @param[in] old Prior set of user flags. + * @param[in] prop If non-zero, also include FLAG_OPER. + */ +void send_umode_out(struct Client *cptr, struct Client *sptr, + struct Flags *old, int prop) +{ + int i; + struct Client *acptr; + + send_umode(NULL, sptr, old, prop ? SEND_UMODES : SEND_UMODES_BUT_OPER); + + for (i = HighestFd; i >= 0; i--) + { + if ((acptr = LocalClientArray[i]) && IsServer(acptr) && + (acptr != cptr) && (acptr != sptr) && *umodeBuf) + sendcmdto_one(sptr, CMD_MODE, acptr, "%s :%s", cli_name(sptr), umodeBuf); + } + if (cptr && MyUser(cptr)) + send_umode(cptr, sptr, old, ALL_UMODES); +} + + +/** Call \a fmt for each Client named in \a names. + * @param[in] sptr Client requesting information. + * @param[in] names Space-delimited list of nicknames. + * @param[in] rpl Base reply string for messages. + * @param[in] fmt Formatting callback function. + */ +void send_user_info(struct Client* sptr, char* names, int rpl, InfoFormatter fmt) +{ + char* name; + char* p = 0; + int arg_count = 0; + int users_found = 0; + struct Client* acptr; + struct MsgBuf* mb; + + assert(0 != sptr); + assert(0 != names); + assert(0 != fmt); + + mb = msgq_make(sptr, rpl_str(rpl), cli_name(&me), cli_name(sptr)); + + for (name = ircd_strtok(&p, names, " "); name; name = ircd_strtok(&p, 0, " ")) { + if ((acptr = FindUser(name))) { + if (users_found++) + msgq_append(0, mb, " "); + (*fmt)(acptr, sptr, mb); + } + if (5 == ++arg_count) + break; + } + send_buffer(sptr, mb, 0); + msgq_clean(mb); +} + +/** Set \a flag on \a cptr and possibly hide the client's hostmask. + * @param[in,out] cptr User who is getting a new flag. + * @param[in] flag Some flag that affects host-hiding (FLAG_HIDDENHOST, FLAG_ACCOUNT). + * @return Zero. + */ +int +hide_hostmask(struct Client *cptr, unsigned int flag) +{ + struct Membership *chan; + + switch (flag) { + case FLAG_HIDDENHOST: + /* Local users cannot set +x unless FEAT_HOST_HIDING is true. */ + if (MyConnect(cptr) && !feature_bool(FEAT_HOST_HIDING)) + return 0; + break; + case FLAG_ACCOUNT: + /* Invalidate all bans against the user so we check them again */ + for (chan = (cli_user(cptr))->channel; chan; + chan = chan->next_channel) + ClearBanValid(chan); + break; + default: + return 0; + } + + SetFlag(cptr, flag); + if (!HasFlag(cptr, FLAG_HIDDENHOST) || !HasFlag(cptr, FLAG_ACCOUNT)) + return 0; + + sendcmdto_common_channels_butone(cptr, CMD_QUIT, cptr, ":Registered"); + ircd_snprintf(0, cli_user(cptr)->host, HOSTLEN, "%s.%s", + cli_user(cptr)->account, feature_str(FEAT_HIDDEN_HOST)); + + /* ok, the client is now fully hidden, so let them know -- hikari */ + if (MyConnect(cptr)) + send_reply(cptr, RPL_HOSTHIDDEN, cli_user(cptr)->host); + + /* + * Go through all channels the client was on, rejoin him + * and set the modes, if any + */ + for (chan = cli_user(cptr)->channel; chan; chan = chan->next_channel) + { + if (IsZombie(chan)) + continue; + /* Send a JOIN unless the user's join has been delayed. */ + if (!IsDelayedJoin(chan)) + sendcmdto_channel_butserv_butone(cptr, CMD_JOIN, chan->channel, cptr, 0, + "%H", chan->channel); + if (IsChanOp(chan) && HasVoice(chan)) + sendcmdto_channel_butserv_butone(&his, CMD_MODE, chan->channel, cptr, 0, + "%H +ov %C %C", chan->channel, cptr, + cptr); + else if (IsChanOp(chan) || HasVoice(chan)) + sendcmdto_channel_butserv_butone(&his, CMD_MODE, chan->channel, cptr, 0, + "%H +%c %C", chan->channel, IsChanOp(chan) ? 'o' : 'v', cptr); + } + return 0; +} + +/** Set a user's mode. This function checks that \a cptr is trying to + * set his own mode, prevents local users from setting inappropriate + * modes through this function, and applies any other side effects of + * a successful mode change. + * + * @param[in,out] cptr User setting someone's mode. + * @param[in] sptr Client who sent the mode change message. + * @param[in] parc Number of parameters in \a parv. + * @param[in] parv Parameters to MODE. + * @param[in] allow_modes ALLOWMODES_ANY for any mode, ALLOWMODES_DEFAULT for + * only permitting legitimate default user modes. + * @return Zero. + */ +int set_user_mode(struct Client *cptr, struct Client *sptr, int parc, + char *parv[], int allow_modes) +{ + char** p; + char* m; + int what; + int i; + struct Flags setflags; + unsigned int tmpmask = 0; + int snomask_given = 0; + char buf[BUFSIZE]; + int prop = 0; + int do_host_hiding = 0; + char* account = NULL; + + what = MODE_ADD; + + if (parc < 3) + { + m = buf; + *m++ = '+'; + for (i = 0; i < USERMODELIST_SIZE; i++) + { + if (HasFlag(sptr, userModeList[i].flag) && + userModeList[i].flag != FLAG_ACCOUNT) + *m++ = userModeList[i].c; + } + *m = '\0'; + send_reply(sptr, RPL_UMODEIS, buf); + if (HasFlag(sptr, FLAG_SERVNOTICE) && MyConnect(sptr) + && cli_snomask(sptr) != + (unsigned int)(IsOper(sptr) ? SNO_OPERDEFAULT : SNO_DEFAULT)) + send_reply(sptr, RPL_SNOMASK, cli_snomask(sptr), cli_snomask(sptr)); + return 0; + } + + /* + * find flags already set for user + * why not just copy them? + */ + setflags = cli_flags(sptr); + + if (MyConnect(sptr)) + tmpmask = cli_snomask(sptr); + + /* + * parse mode change string(s) + */ + for (p = &parv[2]; *p && p<&parv[parc]; p++) { /* p is changed in loop too */ + for (m = *p; *m; m++) { + switch (*m) { + case '+': + what = MODE_ADD; + break; + case '-': + what = MODE_DEL; + break; + case 's': + if (*(p + 1) && is_snomask(*(p + 1))) { + snomask_given = 1; + tmpmask = umode_make_snomask(tmpmask, *++p, what); + tmpmask &= (IsAnOper(sptr) ? SNO_ALL : SNO_USER); + } + else + tmpmask = (what == MODE_ADD) ? + (IsAnOper(sptr) ? SNO_OPERDEFAULT : SNO_DEFAULT) : 0; + if (tmpmask) + SetServNotice(sptr); + else + ClearServNotice(sptr); + break; + case 'w': + if (what == MODE_ADD) + SetWallops(sptr); + else + ClearWallops(sptr); + break; + case 'o': + if (what == MODE_ADD) + SetOper(sptr); + else { + ClrFlag(sptr, FLAG_OPER); + ClrFlag(sptr, FLAG_LOCOP); + if (MyConnect(sptr)) + { + tmpmask = cli_snomask(sptr) & ~SNO_OPER; + cli_handler(sptr) = CLIENT_HANDLER; + } + } + break; + case 'O': + if (what == MODE_ADD) + SetLocOp(sptr); + else + { + ClrFlag(sptr, FLAG_OPER); + ClrFlag(sptr, FLAG_LOCOP); + if (MyConnect(sptr)) + { + tmpmask = cli_snomask(sptr) & ~SNO_OPER; + cli_handler(sptr) = CLIENT_HANDLER; + } + } + break; + case 'i': + if (what == MODE_ADD) + SetInvisible(sptr); + else + ClearInvisible(sptr); + break; + case 'd': + if (what == MODE_ADD) + SetDeaf(sptr); + else + ClearDeaf(sptr); + break; + case 'k': + if (what == MODE_ADD) + SetChannelService(sptr); + else + ClearChannelService(sptr); + break; + case 'g': + if (what == MODE_ADD) + SetDebug(sptr); + else + ClearDebug(sptr); + break; + case 'x': + if (what == MODE_ADD) + do_host_hiding = 1; + break; + case 'r': + if (*(p + 1) && (what == MODE_ADD)) { + account = *(++p); + SetAccount(sptr); + } + /* There is no -r */ + break; + default: + send_reply(sptr, ERR_UMODEUNKNOWNFLAG, *m); + break; + } + } + } + /* + * Evaluate rules for new user mode + * Stop users making themselves operators too easily: + */ + if (!IsServer(cptr)) + { + if (!FlagHas(&setflags, FLAG_OPER) && IsOper(sptr)) + ClearOper(sptr); + if (!FlagHas(&setflags, FLAG_LOCOP) && IsLocOp(sptr)) + ClearLocOp(sptr); + if (!FlagHas(&setflags, FLAG_ACCOUNT) && IsAccount(sptr)) + ClrFlag(sptr, FLAG_ACCOUNT); + /* + * new umode; servers can set it, local users cannot; + * prevents users from /kick'ing or /mode -o'ing + */ + if (!FlagHas(&setflags, FLAG_CHSERV)) + ClearChannelService(sptr); + /* + * only send wallops to opers + */ + if (feature_bool(FEAT_WALLOPS_OPER_ONLY) && !IsAnOper(sptr) && + !FlagHas(&setflags, FLAG_WALLOP)) + ClearWallops(sptr); + if (feature_bool(FEAT_HIS_SNOTICES_OPER_ONLY) && MyConnect(sptr) && + !IsAnOper(sptr) && !FlagHas(&setflags, FLAG_SERVNOTICE)) + { + ClearServNotice(sptr); + set_snomask(sptr, 0, SNO_SET); + } + if (feature_bool(FEAT_HIS_DEBUG_OPER_ONLY) && + !IsAnOper(sptr) && !FlagHas(&setflags, FLAG_DEBUG)) + ClearDebug(sptr); + } + if (MyConnect(sptr)) + { + if ((FlagHas(&setflags, FLAG_OPER) || FlagHas(&setflags, FLAG_LOCOP)) && + !IsAnOper(sptr)) + { + det_confs_butmask(sptr, CONF_CLIENT & ~CONF_OPERATOR); + client_set_privs(sptr, NULL); + } + + if (SendServNotice(sptr)) + { + if (tmpmask != cli_snomask(sptr)) + set_snomask(sptr, tmpmask, SNO_SET); + if (cli_snomask(sptr) && snomask_given) + send_reply(sptr, RPL_SNOMASK, cli_snomask(sptr), cli_snomask(sptr)); + } + else + set_snomask(sptr, 0, SNO_SET); + } + /* + * Compare new flags with old flags and send string which + * will cause servers to update correctly. + */ + if (!FlagHas(&setflags, FLAG_ACCOUNT) && IsAccount(sptr)) { + int len = ACCOUNTLEN; + char *ts; + if ((ts = strchr(account, ':'))) { + len = (ts++) - account; + cli_user(sptr)->acc_create = atoi(ts); + Debug((DEBUG_DEBUG, "Received timestamped account in user mode; " + "account \"%s\", timestamp %Tu", account, + cli_user(sptr)->acc_create)); + } + ircd_strncpy(cli_user(sptr)->account, account, len); + } + if (!FlagHas(&setflags, FLAG_HIDDENHOST) && do_host_hiding && allow_modes != ALLOWMODES_DEFAULT) + hide_hostmask(sptr, FLAG_HIDDENHOST); + + if (IsRegistered(sptr)) { + if (!FlagHas(&setflags, FLAG_OPER) && IsOper(sptr)) { + /* user now oper */ + ++UserStats.opers; + client_set_privs(sptr, NULL); /* may set propagate privilege */ + } + /* remember propagate privilege setting */ + if (HasPriv(sptr, PRIV_PROPAGATE)) { + prop = 1; + } + if (FlagHas(&setflags, FLAG_OPER) && !IsOper(sptr)) { + /* user no longer oper */ + assert(UserStats.opers > 0); + --UserStats.opers; + client_set_privs(sptr, NULL); /* will clear propagate privilege */ + } + if (FlagHas(&setflags, FLAG_INVISIBLE) && !IsInvisible(sptr)) { + assert(UserStats.inv_clients > 0); + --UserStats.inv_clients; + } + if (!FlagHas(&setflags, FLAG_INVISIBLE) && IsInvisible(sptr)) { + ++UserStats.inv_clients; + } + assert(UserStats.opers <= UserStats.clients + UserStats.unknowns); + assert(UserStats.inv_clients <= UserStats.clients + UserStats.unknowns); + send_umode_out(cptr, sptr, &setflags, prop); + } + + return 0; +} + +/** Build a mode string to describe modes for \a cptr. + * @param[in] cptr Some user. + * @return Pointer to a static buffer. + */ +char *umode_str(struct Client *cptr) +{ + /* Maximum string size: "owidgrx\0" */ + char *m = umodeBuf; + int i; + struct Flags c_flags = cli_flags(cptr); + + if (!HasPriv(cptr, PRIV_PROPAGATE)) + FlagClr(&c_flags, FLAG_OPER); + + for (i = 0; i < USERMODELIST_SIZE; ++i) + { + if (FlagHas(&c_flags, userModeList[i].flag) && + userModeList[i].flag >= FLAG_GLOBAL_UMODES) + *m++ = userModeList[i].c; + } + + if (IsAccount(cptr)) + { + char* t = cli_user(cptr)->account; + + *m++ = ' '; + while ((*m++ = *t++)) + ; /* Empty loop */ + + if (cli_user(cptr)->acc_create) { + char nbuf[20]; + Debug((DEBUG_DEBUG, "Sending timestamped account in user mode for " + "account \"%s\"; timestamp %Tu", cli_user(cptr)->account, + cli_user(cptr)->acc_create)); + ircd_snprintf(0, t = nbuf, sizeof(nbuf), ":%Tu", + cli_user(cptr)->acc_create); + m--; /* back up over previous nul-termination */ + while ((*m++ = *t++)) + ; /* Empty loop */ + } + } + + *m = '\0'; + + return umodeBuf; /* Note: static buffer, gets + overwritten by send_umode() */ +} + +/** Send a mode change string for \a sptr to \a cptr. + * @param[in] cptr Destination of mode change message. + * @param[in] sptr User whose mode has changed. + * @param[in] old Pre-change set of modes for \a sptr. + * @param[in] sendset One of ALL_UMODES, SEND_UMODES_BUT_OPER, + * SEND_UMODES, to select which changed user modes to send. + */ +void send_umode(struct Client *cptr, struct Client *sptr, struct Flags *old, + int sendset) +{ + int i; + int flag; + char *m; + int what = MODE_NULL; + + /* + * Build a string in umodeBuf to represent the change in the user's + * mode between the new (cli_flags(sptr)) and 'old', but skipping + * the modes indicated by sendset. + */ + m = umodeBuf; + *m = '\0'; + for (i = 0; i < USERMODELIST_SIZE; ++i) + { + flag = userModeList[i].flag; + if (FlagHas(old, flag) + == HasFlag(sptr, flag)) + continue; + switch (sendset) + { + case ALL_UMODES: + break; + case SEND_UMODES_BUT_OPER: + if (flag == FLAG_OPER) + continue; + /* and fall through */ + case SEND_UMODES: + if (flag < FLAG_GLOBAL_UMODES) + continue; + break; + } + if (FlagHas(old, flag)) + { + if (what == MODE_DEL) + *m++ = userModeList[i].c; + else + { + what = MODE_DEL; + *m++ = '-'; + *m++ = userModeList[i].c; + } + } + else /* !FlagHas(old, flag) */ + { + if (what == MODE_ADD) + *m++ = userModeList[i].c; + else + { + what = MODE_ADD; + *m++ = '+'; + *m++ = userModeList[i].c; + } + } + } + *m = '\0'; + if (*umodeBuf && cptr) + sendcmdto_one(sptr, CMD_MODE, cptr, "%s :%s", cli_name(sptr), umodeBuf); +} + +/** + * Check to see if this resembles a sno_mask. It is if 1) there is + * at least one digit and 2) The first digit occurs before the first + * alphabetic character. + * @param[in] word Word to check for sno_mask-ness. + * @return Non-zero if \a word looks like a server notice mask; zero if not. + */ +int is_snomask(char *word) +{ + if (word) + { + for (; *word; word++) + if (IsDigit(*word)) + return 1; + else if (IsAlpha(*word)) + return 0; + } + return 0; +} + +/** Update snomask \a oldmask according to \a arg and \a what. + * @param[in] oldmask Original user mask. + * @param[in] arg Update string (either a number or '+'/'-' followed by a number). + * @param[in] what MODE_ADD if adding the mask. + * @return New value of service notice mask. + */ +unsigned int umode_make_snomask(unsigned int oldmask, char *arg, int what) +{ + unsigned int sno_what; + unsigned int newmask; + if (*arg == '+') + { + arg++; + if (what == MODE_ADD) + sno_what = SNO_ADD; + else + sno_what = SNO_DEL; + } + else if (*arg == '-') + { + arg++; + if (what == MODE_ADD) + sno_what = SNO_DEL; + else + sno_what = SNO_ADD; + } + else + sno_what = (what == MODE_ADD) ? SNO_SET : SNO_DEL; + /* pity we don't have strtoul everywhere */ + newmask = (unsigned int)atoi(arg); + if (sno_what == SNO_DEL) + newmask = oldmask & ~newmask; + else if (sno_what == SNO_ADD) + newmask |= oldmask; + return newmask; +} + +/** Remove \a cptr from the singly linked list \a list. + * @param[in] cptr Client to remove from list. + * @param[in,out] list Pointer to head of list containing \a cptr. + */ +static void delfrom_list(struct Client *cptr, struct SLink **list) +{ + struct SLink* tmp; + struct SLink* prv = NULL; + + for (tmp = *list; tmp; tmp = tmp->next) { + if (tmp->value.cptr == cptr) { + if (prv) + prv->next = tmp->next; + else + *list = tmp->next; + free_link(tmp); + break; + } + prv = tmp; + } +} + +/** Set \a cptr's server notice mask, according to \a what. + * @param[in,out] cptr Client whose snomask is updating. + * @param[in] newmask Base value for new snomask. + * @param[in] what One of SNO_ADD, SNO_DEL, SNO_SET, to choose operation. + */ +void set_snomask(struct Client *cptr, unsigned int newmask, int what) +{ + unsigned int oldmask, diffmask; /* unsigned please */ + int i; + struct SLink *tmp; + + oldmask = cli_snomask(cptr); + + if (what == SNO_ADD) + newmask |= oldmask; + else if (what == SNO_DEL) + newmask = oldmask & ~newmask; + else if (what != SNO_SET) /* absolute set, no math needed */ + sendto_opmask_butone(0, SNO_OLDSNO, "setsnomask called with %d ?!", what); + + newmask &= (IsAnOper(cptr) ? SNO_ALL : SNO_USER); + + diffmask = oldmask ^ newmask; + + for (i = 0; diffmask >> i; i++) { + if (((diffmask >> i) & 1)) + { + if (((newmask >> i) & 1)) + { + tmp = make_link(); + tmp->next = opsarray[i]; + tmp->value.cptr = cptr; + opsarray[i] = tmp; + } + else + /* not real portable :( */ + delfrom_list(cptr, &opsarray[i]); + } + } + cli_snomask(cptr) = newmask; +} + +/** Check whether \a sptr is allowed to send a message to \a acptr. + * If \a sptr is a remote user, it means some server has an outdated + * SILENCE list for \a acptr, so send the missing SILENCE mask(s) back + * in the direction of \a sptr. Skip the check if \a sptr is a server. + * @param[in] sptr Client trying to send a message. + * @param[in] acptr Destination of message. + * @return Non-zero if \a sptr is SILENCEd by \a acptr, zero if not. + */ +int is_silenced(struct Client *sptr, struct Client *acptr) +{ + struct Ban *found; + struct User *user; + size_t buf_used, slen; + char buf[BUFSIZE]; + + if (IsServer(sptr) || !(user = cli_user(acptr)) + || !(found = find_ban(sptr, user->silence))) + return 0; + assert(!(found->flags & BAN_EXCEPTION)); + if (!MyConnect(sptr)) { + /* Buffer positive silence to send back. */ + buf_used = strlen(found->banstr); + memcpy(buf, found->banstr, buf_used); + /* Add exceptions to buffer. */ + for (found = user->silence; found; found = found->next) { + if (!(found->flags & BAN_EXCEPTION)) + continue; + slen = strlen(found->banstr); + if (buf_used + slen + 4 > 400) { + buf[buf_used] = '\0'; + sendcmdto_one(acptr, CMD_SILENCE, cli_from(sptr), "%C %s", sptr, buf); + buf_used = 0; + } + if (buf_used) + buf[buf_used++] = ','; + buf[buf_used++] = '+'; + buf[buf_used++] = '~'; + memcpy(buf + buf_used, found->banstr, slen); + buf_used += slen; + } + /* Flush silence buffer. */ + if (buf_used) { + buf[buf_used] = '\0'; + sendcmdto_one(acptr, CMD_SILENCE, cli_from(sptr), "%C %s", sptr, buf); + buf_used = 0; + } + } + return 1; +} + +/** Send RPL_ISUPPORT lines to \a cptr. + * @param[in] cptr Client to send ISUPPORT to. + * @return Zero. + */ +int +send_supported(struct Client *cptr) +{ + char featurebuf[512]; + + ircd_snprintf(0, featurebuf, sizeof(featurebuf), FEATURES1, FEATURESVALUES1); + send_reply(cptr, RPL_ISUPPORT, featurebuf); + ircd_snprintf(0, featurebuf, sizeof(featurebuf), FEATURES2, FEATURESVALUES2); + send_reply(cptr, RPL_ISUPPORT, featurebuf); + + return 0; /* convenience return, if it's ever needed */ +} + +/* vim: shiftwidth=2 + */