--- /dev/null
+/*
+ * IRC - Internet Relay Chat, ircd/m_names.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.
+ *
+ * $Id$
+ */
+
+/*
+ * m_functions execute protocol messages on this server:
+ *
+ * cptr is always NON-NULL, pointing to a *LOCAL* client
+ * structure (with an open socket connected!). This
+ * identifies the physical socket where the message
+ * originated (or which caused the m_function to be
+ * executed--some m_functions may call others...).
+ *
+ * sptr is the source of the message, defined by the
+ * prefix part of the message if present. If not
+ * or prefix not found, then sptr==cptr.
+ *
+ * (!IsServer(cptr)) => (cptr == sptr), because
+ * prefixes are taken *only* from servers...
+ *
+ * (IsServer(cptr))
+ * (sptr == cptr) => the message didn't
+ * have the prefix.
+ *
+ * (sptr != cptr && IsServer(sptr) means
+ * the prefix specified servername. (?)
+ *
+ * (sptr != cptr && !IsServer(sptr) means
+ * that message originated from a remote
+ * user (not local).
+ *
+ * combining
+ *
+ * (!IsServer(sptr)) means that, sptr can safely
+ * taken as defining the target structure of the
+ * message in this server.
+ *
+ * *Always* true (if 'parse' and others are working correct):
+ *
+ * 1) sptr->from == cptr (note: cptr->from == cptr)
+ *
+ * 2) MyConnect(sptr) <=> sptr == cptr (e.g. sptr
+ * *cannot* be a local connection, unless it's
+ * actually cptr!). [MyConnect(x) should probably
+ * be defined as (x == x->from) --msa ]
+ *
+ * parc number of variable parameter strings (if zero,
+ * parv is allowed to be NULL)
+ *
+ * parv a NULL terminated list of parameter pointers,
+ *
+ * parv[0], sender (prefix string), if not present
+ * this points to an empty string.
+ * parv[1]...parv[parc-1]
+ * pointers to additional parameters
+ * parv[parc] == NULL, *always*
+ *
+ * note: it is guaranteed that parv[0]..parv[parc-1] are all
+ * non-NULL pointers.
+ */
+#include "config.h"
+
+#include "channel.h"
+#include "client.h"
+#include "hash.h"
+#include "ircd.h"
+#include "ircd_log.h"
+#include "ircd_reply.h"
+#include "ircd_string.h"
+#include "msg.h"
+#include "numeric.h"
+#include "numnicks.h"
+#include "s_user.h"
+#include "send.h"
+
+/* #include <assert.h> -- Now using assert in ircd_log.h */
+#include <string.h>
+
+/*
+ * Sends a suitably formatted 'names' reply to 'sptr' consisting of nicks within
+ * 'chptr', depending on 'filter'.
+ *
+ * NAMES_ALL - Lists all users on channel.
+ * NAMES_VIS - Only list visible (-i) users. --Gte (04/06/2000).
+ * NAMES_DEL - Show join-delayed names list.
+ * NAMES_EON - When OR'd with the other two, adds an 'End of Names' numeric
+ * used by m_join
+ *
+ */
+
+void do_names(struct Client* sptr, struct Channel* chptr, int filter)
+{
+ int mlen;
+ int idx;
+ int flag;
+ int needs_space;
+ int len;
+ char buf[BUFSIZE];
+ struct Client *c2ptr;
+ struct Membership* member;
+
+ assert(chptr);
+ assert(sptr);
+ assert((filter&NAMES_ALL) != (filter&NAMES_VIS));
+
+ /* Tag Pub/Secret channels accordingly. */
+
+ strcpy(buf, "* ");
+ if (PubChannel(chptr))
+ *buf = '=';
+ else if (SecretChannel(chptr))
+ *buf = '@';
+
+ len = strlen(chptr->chname);
+ strcpy(buf + 2, chptr->chname);
+ strcpy(buf + 2 + len, " :");
+
+ idx = len + 4;
+ flag = 1;
+ needs_space = 0;
+
+ if (!ShowChannel(sptr, chptr)) /* Don't list private channels unless we are on them. */
+ return;
+
+ /* Iterate over all channel members, and build up the list. */
+
+ mlen = strlen(cli_name(&me)) + 10 + strlen(cli_name(sptr));
+
+ for (member = chptr->members; member; member = member->next_member)
+ {
+ c2ptr = member->user;
+
+ if (((filter&NAMES_VIS)!=0) && IsInvisible(c2ptr))
+ continue;
+
+ if (IsZombie(member) && member->user != sptr)
+ continue;
+
+ if (IsDelayedJoin(member) && (member->user != sptr) && !(filter & NAMES_DEL))
+ continue;
+
+ if ((!IsDelayedJoin(member) || (member->user == sptr)) && (filter & NAMES_DEL))
+ continue;
+
+ if (needs_space)
+ buf[idx++] = ' ';
+ needs_space=1;
+ if (IsZombie(member))
+ buf[idx++] = '!';
+ else if (IsChanOp(member))
+ buf[idx++] = '@';
+ else if (HasVoice(member))
+ buf[idx++] = '+';
+ strcpy(buf + idx, cli_name(c2ptr));
+ idx += strlen(cli_name(c2ptr));
+ flag = 1;
+ if (mlen + idx + NICKLEN + 5 > BUFSIZE)
+ /* space, modifier, nick, \r \n \0 */
+ {
+ send_reply(sptr, (filter & NAMES_DEL) ? RPL_DELNAMREPLY : RPL_NAMREPLY, buf);
+ idx = len + 4;
+ flag = 0;
+ needs_space=0;
+ }
+ }
+ if (flag)
+ send_reply(sptr, (filter & NAMES_DEL) ? RPL_DELNAMREPLY : RPL_NAMREPLY, buf);
+ if (filter&NAMES_EON)
+ send_reply(sptr, RPL_ENDOFNAMES, chptr->chname);
+}
+
+/*
+ * m_names - generic message handler
+ *
+ * parv[0] = sender prefix
+ * parv[1] = channel
+ */
+
+int m_names(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
+{
+ struct Channel *chptr;
+ struct Channel *ch2ptr;
+ struct Client *c2ptr;
+ struct Membership* member;
+ char* s;
+ char* para = parc > 1 ? parv[1] : 0;
+ int showingdelayed = 0;
+
+ if (parc > 1 && !ircd_strcmp(parv[1], "-D")) {
+ para = (parc > 2) ? parv[2] : 0;
+ showingdelayed = NAMES_DEL;
+ if (parc > 3 && hunt_server_cmd(sptr, CMD_NAMES, cptr, 1, "%s %s %C", 3, parc, parv))
+ return 0;
+ } else if (parc > 2 && hunt_server_cmd(sptr, CMD_NAMES, cptr, 1, "%s %C", 2, parc, parv))
+ return 0;
+
+ if (EmptyString(para)) {
+ send_reply(sptr, RPL_ENDOFNAMES, "*");
+ return 0;
+ }
+
+ do {
+ s = strchr(para, ',');
+ if (s)
+ *s++ = '\0';
+ /*
+ * Special Case 1: "/names 0".
+ * Full list as per RFC.
+ */
+ if ((*para == '0') || (*para == '\0'))
+ {
+ int idx;
+ int mlen;
+ int flag;
+ struct Channel *ch3ptr;
+ char buf[BUFSIZE];
+
+ mlen = strlen(cli_name(&me)) + 10 + strlen(cli_name(sptr));
+
+ /* List all visible channels/visible members */
+
+ for (ch2ptr = GlobalChannelList; ch2ptr; ch2ptr = ch2ptr->next)
+ {
+ if (!ShowChannel(sptr, ch2ptr))
+ continue; /* Don't show secret chans. */
+ else if (find_channel_member(sptr, ch2ptr))
+ do_names(sptr, ch2ptr, showingdelayed|NAMES_ALL); /* Full list if we're in this chan. */
+ else
+ do_names(sptr, ch2ptr, showingdelayed|NAMES_VIS);
+ }
+
+ /* List all remaining users on channel '*' */
+
+ strcpy(buf, "* * :");
+ idx = 5;
+ flag = 0;
+
+ for (c2ptr = GlobalClientList; c2ptr; c2ptr = cli_next(c2ptr))
+ {
+ int showflag = 0;
+
+ if (!IsUser(c2ptr) || (sptr != c2ptr && IsInvisible(c2ptr)))
+ continue;
+
+ member = cli_user(c2ptr)->channel;
+
+ while (member)
+ {
+ ch3ptr = member->channel;
+
+ if (PubChannel(ch3ptr) || find_channel_member(sptr, ch3ptr))
+ showflag = 1;
+
+ member = member->next_channel;
+ }
+
+ if (showflag) /* Have we already shown them? */
+ continue;
+
+ strcpy(buf + idx, cli_name(c2ptr));
+ idx += strlen(cli_name(c2ptr));
+ buf[idx++] = ' ';
+ flag = 1;
+
+ if (mlen + idx + NICKLEN + 3 > BUFSIZE) /* space, \r\n\0 */
+ {
+ buf[idx-1] = '\0';
+ send_reply(sptr, RPL_NAMREPLY, buf);
+ strcpy(buf, "* * :");
+ idx = 5;
+ flag = 0;
+ }
+ }
+ if (flag)
+ {
+ buf[idx-1] = '\0';
+ send_reply(sptr, RPL_NAMREPLY, buf);
+ }
+ send_reply(sptr, RPL_ENDOFNAMES, "*");
+ }
+ else if ((chptr = FindChannel(para)) != NULL)
+ {
+ member = find_member_link(chptr, sptr);
+ if (member)
+ {
+ /*
+ * Special Case 2: User is on this channel, requesting full names list.
+ * (As performed with each /join) - ** High frequency usage **
+ */
+ do_names(sptr, chptr, showingdelayed|NAMES_ALL|NAMES_EON);
+ }
+ else
+ {
+ /*
+ * Special Case 3: User isn't on this channel, show all visible users, in
+ * non secret channels.
+ */
+ do_names(sptr, chptr, showingdelayed|NAMES_VIS|NAMES_EON);
+ }
+ }
+ else
+ send_reply(sptr, RPL_ENDOFNAMES, para);
+ } while ((para = s) != NULL);
+
+ return 1;
+}
projects / ircu2.10.12-pk.git / blobdiff