welcome.patch

   1 Add welcome message functionality.
   2
   3 client commands:
   4 user:
   5 /WELCOME
   6 shows welcome messages set, same is shown on connect
   7
   8 oper:
   9 /WELCOME [<target>] [[!]<name> :<message>]
  10 to view welcome messages from a remote server
  11 to set a local welcome message on this server or a remote server
  12 set a global welcome message (target *)
  13 the ! prefix makes the server annouce the welcome message to its clients when setting
  14
  15 server:
  16 :<source> WE <target> [[!]<name> <timestamp> <who> :<text>]
  17 who is who set the message, the server puts in the opername when a client sets it.
  18 :<name> is a number 1 to WELCOME_MAX_ENTRIES - currently set at 10 (should be more than we ever need)
  19 that means there is room for 10 local and 10 global entries
  20
  21 STATS W/welcome (/STATS w/userload made case sensitive)
  22 :server 230 nick W Name Target Who Timestamp :Message
  23 :server 227 nick W 1 * opername 1233072583 :Latest news: testing this welcome patch :)
  24 :server 227 nick W 2 * opername 1233072583 :
  25 :server 227 nick W 1 servername opername 1233072590 :This is a test server, expect restarts.
  26 :server 219 nick W :End of /STATS report
  27
  28 listing welcomes or on connect:
  29 :server NOTICE nick :[QuakeNet] Latest news: testing this welcome patch :)
  30 :server NOTICE nick :[server] This is a test server, expect restarts.
  31
  32 announcement is done by a notice by the local server to $* with the same message
  33 format as for listing welcome messages.
  34 :server NOTICE $* :[QuakeNet] Latest news: testing this welcome patch :)
  35 :server NOTICE $* :[server] This is a test server, expect restarts.
  36
  37
  38 Files:
  39
  40 include/handlers.h
  41 add m_welcome mo_welcome ms_welcome mh_welcome functions
  42
  43 include/features.h
  44 ircd/features.c
  45 add features FEAT_WELCOME and FEAT_HIS_STATS_W
  46
  47 include/msg.h
  48 add MSG_WELCOME TOK_WELCOME CMD_WELCOME
  49
  50 ircd/parse.c
  51 add welcome message functions
  52
  53 include/numeric.h
  54 ircd/s_err.c
  55 add RPL_STATSWELCOME ERR_NOSUCHWELCOME
  56
  57 include/welcome.h
  58 ircd/welcome.c
  59 ircd/m_welcome.c
  60 new
  61
  62 ircd/Makefile.in
  63 add welcome.c and m_welcome.c files
  64
  65 ircd/s_serv.c
  66 add burst welcome message
  67
  68 ircd/s_stats.c
  69 add /STATS W/welcome
  70
  71 ircd/s_user.c
  72 add showing of welcome messages on connect
  73
  74 include/client.h
  75 ircd/client.c
  76 ircd/ircd_lexer.l
  77 ircd/ircd_parser.y
  78 add PRIV_LOCAL_WELCOME PRIV_WELCOME
  79
  80 diff -r a9b437e961ec include/client.h
  81 --- a/include/client.h
  82 +++ b/include/client.h
  83 @@ -142,6 +142,8 @@
  84      PRIV_USER_PRIVACY,  /* oper can bypass user privacy +x etc gives i.e. see real ip's */
  85      PRIV_CHANNEL_PRIVACY, /* oper can bypass channel privacy i.e. can see modes on channels they are not on and channel keys */
  86      PRIV_SERVERINFO,     /* oper can use /get, /stats, /hash, retrieve remote information */
  87 +    PRIV_WELCOME,        /* oper can WELCOME */
  88 +    PRIV_LOCAL_WELCOME,  /* oper can local WELCOME */
  89      PRIV_LAST_PRIV /**< number of privileges */
  90    };
  91
  92 diff -r a9b437e961ec include/handlers.h
  93 --- a/include/handlers.h
  94 +++ b/include/handlers.h
  95 @@ -138,6 +138,7 @@
  96  extern int m_version(struct Client*, struct Client*, int, char*[]);
  97  extern int m_wallchops(struct Client*, struct Client*, int, char*[]);
  98  extern int m_wallvoices(struct Client*, struct Client*, int, char*[]);
  99 +extern int m_welcome(struct Client*, struct Client*, int, char*[]);
 100  extern int m_who(struct Client*, struct Client*, int, char*[]);
 101  extern int m_whois(struct Client*, struct Client*, int, char*[]);
 102  extern int m_whowas(struct Client*, struct Client*, int, char*[]);
 103 @@ -172,6 +173,7 @@
 104  extern int mo_version(struct Client*, struct Client*, int, char*[]);
 105  extern int mo_wallops(struct Client*, struct Client*, int, char*[]);
 106  extern int mo_wallusers(struct Client*, struct Client*, int, char*[]);
 107 +extern int mo_welcome(struct Client*, struct Client*, int, char*[]);
 108  extern int mo_xquery(struct Client*, struct Client*, int, char*[]);
 109  extern int mr_error(struct Client*, struct Client*, int, char*[]);
 110  extern int mr_error(struct Client*, struct Client*, int, char*[]);
 111 @@ -230,6 +232,7 @@
 112  extern int ms_wallops(struct Client*, struct Client*, int, char*[]);
 113  extern int ms_wallusers(struct Client*, struct Client*, int, char*[]);
 114  extern int ms_wallvoices(struct Client*, struct Client*, int, char*[]);
 115 +extern int ms_welcome(struct Client*, struct Client*, int, char*[]);
 116  extern int ms_whois(struct Client*, struct Client*, int, char*[]);
 117  extern int ms_xquery(struct Client*, struct Client*, int, char*[]);
 118  extern int ms_xreply(struct Client*, struct Client*, int, char*[]);
 119 diff -r a9b437e961ec include/ircd_features.h
 120 --- a/include/ircd_features.h
 121 +++ b/include/ircd_features.h
 122 @@ -101,6 +101,7 @@
 123    FEAT_IRCD_RES_TIMEOUT,
 124    FEAT_AUTH_TIMEOUT,
 125    FEAT_ANNOUNCE_INVITES,
 126 +  FEAT_WELCOME,
 127
 128    /* features that affect all operators */
 129    FEAT_EXTENDED_CHECKCMD,
 130 @@ -142,6 +143,7 @@
 131    FEAT_HIS_STATS_u,
 132    FEAT_HIS_STATS_U,
 133    FEAT_HIS_STATS_v,
 134 +  FEAT_HIS_STATS_W,
 135    FEAT_HIS_STATS_w,
 136    FEAT_HIS_STATS_x,
 137    FEAT_HIS_STATS_y,
 138 diff -r a9b437e961ec include/msg.h
 139 --- a/include/msg.h
 140 +++ b/include/msg.h
 141 @@ -196,6 +196,10 @@
 142  #define TOK_NOTICE              "O"
 143  #define CMD_NOTICE             MSG_NOTICE, TOK_NOTICE
 144
 145 +#define MSG_WELCOME             "WELCOME"       /* WELC */
 146 +#define TOK_WELCOME             "WE"
 147 +#define CMD_WELCOME            MSG_WELCOME, TOK_WELCOME
 148 +
 149  #define MSG_WALLCHOPS           "WALLCHOPS"     /* WC */
 150  #define TOK_WALLCHOPS           "WC"
 151  #define CMD_WALLCHOPS          MSG_WALLCHOPS, TOK_WALLCHOPS
 152 diff -r a9b437e961ec include/numeric.h
 153 --- a/include/numeric.h
 154 +++ b/include/numeric.h
 155 @@ -116,6 +116,7 @@
 156         RPL_STATSGLINE       227           Dalnet
 157         RPL_STATSVLINE       227           unreal */
 158  #define RPL_STATSALINE       226        /* Hybrid, Undernet */
 159 +#define RPL_STATSWELCOME     227        /* QuakeNet extension */
 160  #define RPL_STATSQLINE       228        /* Undernet extension */
 161
 162  /*      RPL_SERVICEINFO      231       unused */
 163 @@ -440,6 +441,8 @@
 164  /*      ERR_GHOSTEDCLIENT    503           efnet */
 165  /*     ERR_VWORLDWARN       503           austnet */
 166
 167 +#define ERR_NOSUCHWELCOME    509        /* QuakeNet extension */
 168 +
 169  #define ERR_SILELISTFULL     511        /* Undernet extension */
 170  /*      ERR_NOTIFYFULL       512           aircd */
 171  /*     ERR_TOOMANYWATCH     512           Numeric List: Dalnet */
 172 diff -r a9b437e961ec include/welcome.h
 173 --- /dev/null
 174 +++ b/include/welcome.h
 175 @@ -0,0 +1,78 @@
 176 +#ifndef INCLUDED_welcome_h
 177 +#define INCLUDED_welcome_h
 178 +/*
 179 + * IRC - Internet Relay Chat, include/welcome.h
 180 + * Copyright (C) 1990 Jarkko Oikarinen and
 181 + *                    University of Oulu, Computing Center
 182 + * Copyright (C) 2000 Kevin L. Mitchell <klmitch@mit.edu>
 183 + *
 184 + * This program is free software; you can redistribute it and/or modify
 185 + * it under the terms of the GNU General Public License as published by
 186 + * the Free Software Foundation; either version 2, or (at your option)
 187 + * any later version.
 188 + *
 189 + * This program is distributed in the hope that it will be useful,
 190 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
 191 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 192 + * GNU General Public License for more details.
 193 + *
 194 + * You should have received a copy of the GNU General Public License
 195 + * along with this program; if not, write to the Free Software
 196 + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 197 + */
 198 +/** @file
 199 + * @brief  Interface and declarations for welcome message handling.
 200 + */
 201 +#ifndef INCLUDED_sys_types_h
 202 +#include <sys/types.h>
 203 +#define INCLUDED_sys_types_h
 204 +#endif
 205 +
 206 +struct Client;
 207 +struct StatDesc;
 208 +
 209 +/* Maximum number of welcome entries (per type; X global, X local) */
 210 +#define WELCOME_MAX_ENTRIES  10
 211 +/* Maximum length of a welcome message */
 212 +#define WELCOMELEN TOPICLEN
 213 +/* Maximum timestamp drift in seconds allowed ahead of our idea of nettime
 214 + * before we throw a warning to ops
 215 + */
 216 +#define WELCOME_MAX_DRIFT   600
 217 +
 218 +/* Test if a welcome entry is in a valid range */
 219 +#define WelcomeIsValid(x)     ((x) >= 0 && (x) <= 2 * WELCOME_MAX_ENTRIES - 1)
 220 +/* Test if a welcome entry is set */
 221 +#define WelcomeIsSet(x)       (WelcomeArray[(x)].timestamp > 0)
 222 +/* Test if a welcome entry is empty */
 223 +#define WelcomeIsEmpty(x)     (*WelcomeArray[(x)].text == 0)
 224 +
 225 +/* Get welcome timestamp */
 226 +#define WelcomeTS(x)          (WelcomeArray[(x)].timestamp)
 227 +/* Get welcome text */
 228 +#define WelcomeText(x)        (WelcomeArray[(x)].text)
 229 +/* Get welcome who info */
 230 +#define WelcomeWho(x)         (WelcomeArray[(x)].who)
 231 +
 232 +
 233 +/* Describes a Welcome message entry. */
 234 +struct Welcome {
 235 +  time_t             timestamp;            /**< Timestamp of the welcome */
 236 +  char               text[WELCOMELEN + 1]; /**< Message */
 237 +  char               who[ACCOUNTLEN + 1];  /**< Who set it */
 238 +};
 239 +
 240 +/** Welcome type flags */
 241 +#define WELCOME_LOCAL    0x01 /**< welcome is local */
 242 +/** Welcome action flags */
 243 +#define WELCOME_ANNOUNCE 0x02 /**< announce change to users */
 244 +#define WELCOME_INSERT   0x04 /**< insert welcome message, move down all others one place */
 245 +
 246 +extern int welcome_do(struct Client *cptr, struct Client *sptr, char *name,
 247 +  time_t timestamp, char *who, char *text, unsigned int flags);
 248 +extern void welcome_announce(int name);
 249 +extern void welcome_burst(struct Client *cptr);
 250 +extern int welcome_list(struct Client *sptr, int connect);
 251 +extern void welcome_stats(struct Client *sptr, const struct StatDesc *sd, char *param);
 252 +
 253 +#endif /* INCLUDED_welcome_h */
 254 diff -r a9b437e961ec ircd/Makefile.in
 255 --- a/ircd/Makefile.in
 256 +++ b/ircd/Makefile.in
 257 @@ -186,6 +186,7 @@
 258         m_wallops.c \
 259         m_wallusers.c \
 260         m_wallvoices.c \
 261 +       m_welcome.c \
 262         m_who.c \
 263         m_whois.c \
 264         m_whowas.c \
 265 @@ -215,6 +216,7 @@
 266         send.c \
 267         uping.c \
 268         userload.c \
 269 +       welcome.c \
 270         whocmds.c \
 271         whowas.c \
 272         y.tab.c
 273 @@ -1161,6 +1163,11 @@
 274    ../include/ircd_reply.h ../include/ircd_string.h \
 275    ../include/ircd_chattr.h ../include/msg.h ../include/numeric.h \
 276    ../include/numnicks.h ../include/s_user.h ../include/send.h
 277 +m_welcome.o: m_welcome.c ../config.h ../include/channel.h \
 278 +  ../include/client.h ../include/hash.h ../include/ircd.h ../include/ircd_log.h \
 279 +  ../include/ircd_reply.h ../include/ircd_string.h ../include/msg.h \
 280 +  ../include/numeric.h ../include/numnicks.h ../include/s_user.h \
 281 +  ../include/send.h ../include/welcome.h
 282  m_who.o: m_who.c ../config.h ../include/channel.h ../include/ircd_defs.h \
 283    ../include/res.h ../config.h ../include/client.h ../include/dbuf.h \
 284    ../include/msgq.h ../include/ircd_events.h ../include/ircd_handler.h \
 285 @@ -1422,6 +1429,13 @@
 286    ../include/numnicks.h ../include/querycmds.h ../include/ircd_features.h \
 287    ../include/s_misc.h ../include/s_stats.h ../include/send.h \
 288    ../include/struct.h ../include/sys.h
 289 +welcome.o: welcome.c ../config.h ../include/client.h \
 290 +  ../include/hash.h ../include/ircd.h ../include/ircd_alloc.h \
 291 +  ../include/ircd_features.h ../include/ircd_log.h ../include/ircd_reply.h \
 292 +  ../include/match.h ../include/msg.h ../include/numeric.h \
 293 +  ../include/numnicks.h ../include/s_debug.h ../include/s_bsd.h \
 294 +  ../include/s_misc.h ../include/send.h ../include/struct.h \
 295 +  ../include/sys.h ../include/welcome.h
 296  whocmds.o: whocmds.c ../config.h ../include/whocmds.h \
 297    ../include/channel.h ../include/ircd_defs.h ../include/res.h \
 298    ../config.h ../include/client.h ../include/dbuf.h ../include/msgq.h \
 299 diff -r a9b437e961ec ircd/client.c
 300 --- a/ircd/client.c
 301 +++ b/ircd/client.c
 302 @@ -177,6 +177,7 @@
 303      FlagSet(&privs_local, PRIV_WHOX);
 304      FlagSet(&privs_local, PRIV_DISPLAY);
 305      FlagSet(&privs_local, PRIV_FORCE_LOCAL_OPMODE);
 306 +    FlagSet(&privs_local, PRIV_LOCAL_WELCOME);
 307
 308      privs_defaults_set = 1;
 309    }
 310 @@ -223,6 +224,7 @@
 311      ClrPriv(client, PRIV_JUPE);
 312      ClrPriv(client, PRIV_OPMODE);
 313      ClrPriv(client, PRIV_BADCHAN);
 314 +    ClrPriv(client, PRIV_WELCOME);
 315    }
 316  }
 317
 318 @@ -244,7 +246,7 @@
 319    P(CHANSERV),       P(XTRA_OPER),      P(NOIDLE),        P(FREEFORM),
 320    P(PARANOID),       P(CHECK),          P(WALL),          P(CLOSE),
 321    P(ROUTE),          P(ROUTEINFO),      P(SERVERINFO),    P(CHANNEL_PRIVACY),
 322 -  P(USER_PRIVACY),
 323 +  P(USER_PRIVACY),   P(WELCOME),        P(LOCAL_WELCOME),
 324  #undef P
 325    { 0, 0 }
 326  };
 327 diff -r a9b437e961ec ircd/ircd_features.c
 328 --- a/ircd/ircd_features.c
 329 +++ b/ircd/ircd_features.c
 330 @@ -366,6 +366,7 @@
 331    F_I(IRCD_RES_TIMEOUT, 0, 4, 0),
 332    F_I(AUTH_TIMEOUT, 0, 9, 0),
 333    F_B(ANNOUNCE_INVITES, 0, 0, 0),
 334 +  F_B(WELCOME, 0, 1, 0),
 335
 336    /* features that affect all operators */
 337    F_B(EXTENDED_CHECKCMD, 0, 0, 0),
 338 @@ -407,6 +408,7 @@
 339    F_B(HIS_STATS_u, 0, 1, 0),
 340    F_B(HIS_STATS_U, 0, 1, 0),
 341    F_B(HIS_STATS_v, 0, 1, 0),
 342 +  F_B(HIS_STATS_W, 0, 1, 0),
 343    F_B(HIS_STATS_w, 0, 1, 0),
 344    F_B(HIS_STATS_x, 0, 1, 0),
 345    F_B(HIS_STATS_y, 0, 1, 0),
 346 diff -r a9b437e961ec ircd/ircd_lexer.l
 347 --- a/ircd/ircd_lexer.l
 348 +++ b/ircd/ircd_lexer.l
 349 @@ -166,6 +166,8 @@
 350    { "serverinfo", TPRIV_SERVERINFO },
 351    { "user_privacy", TPRIV_USER_PRIVACY },
 352    { "channel_privacy", TPRIV_CHANNEL_PRIVACY },
 353 +  { "local_welcome", TPRIV_LOCAL_WELCOME },
 354 +  { "welcome", TPRIV_WELCOME },
 355    { NULL, 0 }
 356  };
 357  static int ntokens;
 358 diff -r a9b437e961ec ircd/ircd_parser.y
 359 --- a/ircd/ircd_parser.y
 360 +++ b/ircd/ircd_parser.y
 361 @@ -189,6 +189,7 @@
 362  %token TPRIV_CHANSERV TPRIV_XTRA_OPER TPRIV_NOIDLE TPRIV_FREEFORM TPRIV_PARANOID
 363  %token TPRIV_CHECK TPRIV_WALL TPRIV_CLOSE TPRIV_ROUTE TPRIV_ROUTEINFO TPRIV_SERVERINFO
 364  %token TPRIV_CHANNEL_PRIVACY TPRIV_USER_PRIVACY TPRIV_LIST_CHAN
 365 +%token TPRIV_LOCAL_WELCOME TPRIV_WELCOME
 366  /* and some types... */
 367  %type <num> sizespec
 368  %type <num> timespec timefactor factoredtimes factoredtime
 369 @@ -703,6 +704,8 @@
 370            TPRIV_SERVERINFO { $$ = PRIV_SERVERINFO ; } |
 371            TPRIV_CHANNEL_PRIVACY { $$ = PRIV_CHANNEL_PRIVACY ; } |
 372            TPRIV_USER_PRIVACY { $$ = PRIV_USER_PRIVACY ; } |
 373 +          TPRIV_LOCAL_WELCOME { $$ = PRIV_LOCAL_WELCOME; } |
 374 +          TPRIV_WELCOME { $$ = PRIV_WELCOME; } |
 375            TPRIV_PARANOID { $$ = PRIV_PARANOID; } ;
 376  yesorno: YES { $$ = 1; } | NO { $$ = 0; };
 377
 378 diff -r a9b437e961ec ircd/m_welcome.c
 379 --- /dev/null
 380 +++ b/ircd/m_welcome.c
 381 @@ -0,0 +1,296 @@
 382 +/*
 383 + * IRC - Internet Relay Chat, ircd/m_welcome.c
 384 + * Copyright (C) 1990 Jarkko Oikarinen and
 385 + *                    University of Oulu, Computing Center
 386 + *
 387 + * See file AUTHORS in IRC package for additional names of
 388 + * the programmers.
 389 + *
 390 + * This program is free software; you can redistribute it and/or modify
 391 + * it under the terms of the GNU General Public License as published by
 392 + * the Free Software Foundation; either version 1, or (at your option)
 393 + * any later version.
 394 + *
 395 + * This program is distributed in the hope that it will be useful,
 396 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
 397 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 398 + * GNU General Public License for more details.
 399 + *
 400 + * You should have received a copy of the GNU General Public License
 401 + * along with this program; if not, write to the Free Software
 402 + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 403 + *
 404 + */
 405 +
 406 +/*
 407 + * m_functions execute protocol messages on this server:
 408 + *
 409 + *    cptr    is always NON-NULL, pointing to a *LOCAL* client
 410 + *            structure (with an open socket connected!). This
 411 + *            identifies the physical socket where the message
 412 + *            originated (or which caused the m_function to be
 413 + *            executed--some m_functions may call others...).
 414 + *
 415 + *    sptr    is the source of the message, defined by the
 416 + *            prefix part of the message if present. If not
 417 + *            or prefix not found, then sptr==cptr.
 418 + *
 419 + *            (!IsServer(cptr)) => (cptr == sptr), because
 420 + *            prefixes are taken *only* from servers...
 421 + *
 422 + *            (IsServer(cptr))
 423 + *                    (sptr == cptr) => the message didn't
 424 + *                    have the prefix.
 425 + *
 426 + *                    (sptr != cptr && IsServer(sptr) means
 427 + *                    the prefix specified servername. (?)
 428 + *
 429 + *                    (sptr != cptr && !IsServer(sptr) means
 430 + *                    that message originated from a remote
 431 + *                    user (not local).
 432 + *
 433 + *            combining
 434 + *
 435 + *            (!IsServer(sptr)) means that, sptr can safely
 436 + *            taken as defining the target structure of the
 437 + *            message in this server.
 438 + *
 439 + *    *Always* true (if 'parse' and others are working correct):
 440 + *
 441 + *    1)      sptr->from == cptr  (note: cptr->from == cptr)
 442 + *
 443 + *    2)      MyConnect(sptr) <=> sptr == cptr (e.g. sptr
 444 + *            *cannot* be a local connection, unless it's
 445 + *            actually cptr!). [MyConnect(x) should probably
 446 + *            be defined as (x == x->from) --msa ]
 447 + *
 448 + *    parc    number of variable parameter strings (if zero,
 449 + *            parv is allowed to be NULL)
 450 + *
 451 + *    parv    a NULL terminated list of parameter pointers,
 452 + *
 453 + *                    parv[0], sender (prefix string), if not present
 454 + *                            this points to an empty string.
 455 + *                    parv[1]...parv[parc-1]
 456 + *                            pointers to additional parameters
 457 + *                    parv[parc] == NULL, *always*
 458 + *
 459 + *            note:   it is guaranteed that parv[0]..parv[parc-1] are all
 460 + *                    non-NULL pointers.
 461 + */
 462 +#include "config.h"
 463 +
 464 +#include "channel.h"
 465 +#include "client.h"
 466 +#include "hash.h"
 467 +#include "ircd.h"
 468 +#include "ircd_features.h"
 469 +#include "ircd_log.h"
 470 +#include "ircd_reply.h"
 471 +#include "ircd_snprintf.h"
 472 +#include "ircd_string.h"
 473 +#include "msg.h"
 474 +#include "numeric.h"
 475 +#include "numnicks.h"
 476 +#include "s_user.h"
 477 +#include "send.h"
 478 +#include "welcome.h"
 479 +
 480 +/* #include <assert.h> -- Now using assert in ircd_log.h */
 481 +
 482 +/*
 483 + * m_welcome - local generic message handler
 484 + *
 485 + * parv[0] = Send prefix
 486 + * parv[1] = [remote server to query]
 487 + */
 488 +int m_welcome(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
 489 +{
 490 +  /* feature disabled */
 491 +  if (!feature_bool(FEAT_WELCOME))
 492 +    return send_reply(sptr, ERR_DISABLED, "WELCOME");
 493 +
 494 +  /* only opers can set the welcome messages */
 495 +  if (parc > 2)
 496 +    return send_reply(sptr, ERR_NOPRIVILEGES);
 497 +
 498 +  /* remote listing request, see if it is for me or a remote server
 499 +   *  check FEAT_HIS_REMOTE to decide if an ordinary user can do this
 500 +   */
 501 +  if ((parc > 1) && (hunt_server_cmd(sptr, CMD_WELCOME, cptr, feature_int(FEAT_HIS_REMOTE),
 502 +        "%C", 1, parc, parv) != HUNTED_ISME))
 503 +    return 0;
 504 +
 505 +  /* local listing */
 506 +  return welcome_list(sptr, 0);
 507 +}
 508 +
 509 +
 510 +/*
 511 + * mo_welcome - oper message handler
 512 + *
 513 + * listing:
 514 + * parv[0] = Send prefix
 515 + *
 516 + * remote listing:
 517 + * parv[0] = Send prefix
 518 + * parv[1] = Target
 519 + *
 520 + * set global or on remote server:
 521 + * parv[0] = Send prefix
 522 + * parv[1] = Target: server or * for global (or left out for this server)
 523 + * parv[2] = Name
 524 + * parv[3] = Text
 525 + */
 526 +int mo_welcome(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
 527 +{
 528 +  char *target, *name, *who, *text, pattern[BUFSIZE];
 529 +  time_t timestamp;
 530 +  unsigned int flags = 0;
 531 +  int local = 0;
 532 +
 533 +  /* feature disabled */
 534 +  if (!feature_bool(FEAT_WELCOME))
 535 +    return send_reply(sptr, ERR_DISABLED, "WELCOME");
 536 +
 537 +  /* TODO: move feature check here? */
 538 +  /* remote listing request, see if it is for me or a remote server */
 539 +  if ((parc == 2) && (hunt_server_cmd(sptr, CMD_WELCOME, cptr, 0, "%C", 1, parc, parv) != HUNTED_ISME))
 540 +    return 0;
 541 +
 542 +  /* local listing */
 543 +  if (parc <= 2)
 544 +    return welcome_list(sptr, 0);
 545 +
 546 +  /* check PRIVS */
 547 +  /* local - need PRIV LOCAL_WELCOME or WELCOME */
 548 +  if (parc == 3 && !HasPriv(sptr,PRIV_LOCAL_WELCOME) && !HasPriv(sptr,PRIV_WELCOME))
 549 +    return send_reply(sptr, ERR_NOPRIVILEGES);
 550 +
 551 +  /* global or remote - need PRIV WELCOME */
 552 +  if (parc >= 4 && !HasPriv(sptr,PRIV_WELCOME))
 553 +    return send_reply(sptr, ERR_NOPRIVILEGES);
 554 +
 555 +  /* set the parameters */
 556 +
 557 +  /* target not given, only name - setting local welcome */
 558 +  if (parc < 4) {
 559 +    local++;
 560 +    target = cli_name(&me);
 561 +    name = parv[1];
 562 +    flags |= WELCOME_LOCAL;
 563 +
 564 +  /* target and name given */
 565 +  } else {
 566 +    target = parv[1];
 567 +    name = parv[2];
 568 +  }
 569 +  timestamp = TStime();
 570 +  who = cli_user(sptr)->opername;
 571 +  text = parv[parc - 1];
 572 +
 573 +  /* target is not global */
 574 +  if (!(target[0] == '*' && target[1] == '\0') && !local) {
 575 +
 576 +    /* build a pattern for hunt_server_cmd since we do not have all we need in parv */
 577 +    ircd_snprintf(0, pattern, sizeof(pattern), "%s %s %Tu %s :%s", "%C", name, timestamp, who, text);
 578 +    if (hunt_server_cmd(sptr, CMD_WELCOME, cptr, 0, pattern, 1, 2, parv) != HUNTED_ISME)
 579 +      return 0;
 580 +
 581 +   /* else it is a local welcome, for me */
 582 +    flags |= WELCOME_LOCAL;
 583 +  }
 584 +
 585 +  /* TODO: disallow global announcement from oper?
 586 +   * as PRIVMSG/NOTICE to $* is not allowed either by the ircd
 587 +   * when PRIV for that is added, use that here? PRIV_BROADCAST or something
 588 +   *
 589 +   * change prefix to $ ?
 590 +   */
 591 +  /* check for anounce prefix */
 592 +  if (*name == '!') {
 593 +     name++;
 594 +     flags |= WELCOME_ANNOUNCE;
 595 +  }
 596 +
 597 +  /* check for insert prefix */
 598 +  if (*name == '+') {
 599 +     name++;
 600 +     flags |= WELCOME_INSERT;
 601 +  }
 602 +
 603 +  /* and do it */
 604 +  return welcome_do(cptr, sptr, name, timestamp, who, text, flags);
 605 +}
 606 +
 607 +
 608 +/*
 609 + * ms_welcome - server message handler
 610 + *
 611 + * parv[0] = Send prefix
 612 + * parv[1] = Target: server numeric or * for global
 613 + * parv[2] = Name
 614 + * parv[3] = Timestamp
 615 + * parv[4] = Who
 616 + * parv[5] = Text
 617 + */
 618 +int ms_welcome(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
 619 +{
 620 +  char *target, *name, *who, *text;
 621 +  time_t timestamp;
 622 +  unsigned int flags = 0;
 623 +
 624 +  /* not enough - complain */
 625 +  if (parc < 2) {
 626 +    protocol_violation(sptr, "Too few parameters for WELCOME (got %d - need 2)", parc);
 627 +    return need_more_params(sptr, "WELCOME");
 628 +  }
 629 +
 630 +  /* remote listing request, see if it is for me or a remote server */
 631 +  if (parc == 2) {
 632 +    if (IsServer(sptr))
 633 +      return protocol_violation(cptr, "WELCOME listing request from server %C", sptr);
 634 +    if (hunt_server_cmd(sptr, CMD_WELCOME, cptr, 0, "%C", 1, parc, parv) != HUNTED_ISME)
 635 +      return 0;
 636 +    return welcome_list(sptr, 0);
 637 +  }
 638 +
 639 +  /* we need at least 6 parameters to continue - complain */
 640 +  if (parc < 6) {
 641 +    protocol_violation(sptr, "Too few parameters for WELCOME (got %d - need 6)", parc);
 642 +    return need_more_params(sptr, "WELCOME");
 643 +  }
 644 +
 645 +  /* set the parameters */
 646 +  target = parv[1];
 647 +  name = parv[2];
 648 +  timestamp = atoi(parv[3]);
 649 +  who = parv[4];
 650 +  text = parv[parc - 1]; /* parse reason as last parameter */
 651 +
 652 +  /* target is not global */
 653 +  if (!(target[0] == '*' && target[1] == '\0')) {
 654 +
 655 +    /* not for me, and forward it */
 656 +    if (hunt_server_cmd(sptr, CMD_WELCOME, cptr, 0, "%C %s %s %s :%s", 1, parc, parv) != HUNTED_ISME)
 657 +      return 0;
 658 +
 659 +    /* local welcome for me */
 660 +    flags |= WELCOME_LOCAL;
 661 +  }
 662 +
 663 +  /* check for anounce prefix */
 664 +  if (*name == '!') {
 665 +     name++;
 666 +     flags |= WELCOME_ANNOUNCE;
 667 +  }
 668 +
 669 +  /* check for insert prefix */
 670 +  if (*name == '+') {
 671 +     name++;
 672 +     flags |= WELCOME_INSERT;
 673 +  }
 674 +
 675 +  /* and do it */
 676 +  return welcome_do(cptr, sptr, name, timestamp, who, text, flags);
 677 +}
 678 diff -r a9b437e961ec ircd/parse.c
 679 --- a/ircd/parse.c
 680 +++ b/ircd/parse.c
 681 @@ -661,6 +661,15 @@
 682      /* UNREG, CLIENT, SERVER, OPER, SERVICE */
 683      { m_unregistered, m_not_oper, ms_check, mo_check, m_ignore }
 684    },
 685 +
 686 +  /* add command for WELCOME */
 687 +  {
 688 +    MSG_WELCOME,
 689 +    TOK_WELCOME,
 690 +    0, MAXPARA, MFLG_SLOW, 0, NULL,
 691 +    /* UNREG, CLIENT, SERVER, OPER, SERVICE, HELP */
 692 +    { m_unregistered, m_welcome, ms_welcome, mo_welcome, m_ignore }
 693 +  },
 694
 695    /* This command is an alias for QUIT during the unregistered part of
 696     * of the server.  This is because someone jumping via a broken web
 697 diff -r a9b437e961ec ircd/s_err.c
 698 --- a/ircd/s_err.c
 699 +++ b/ircd/s_err.c
 700 @@ -486,7 +486,7 @@
 701  /* 226 */
 702    { RPL_STATSALINE, "%s", "226" },
 703  /* 227 */
 704 -  { 0 },
 705 +  { RPL_STATSWELCOME, "W %d %s %s %Tu :%s", "227" },
 706  /* 228 */
 707    { RPL_STATSQLINE, "Q %s :%s", "228" },
 708  /* 229 */
 709 @@ -1050,7 +1050,7 @@
 710  /* 508 */
 711    { 0 },
 712  /* 509 */
 713 -  { 0 },
 714 +  { ERR_NOSUCHWELCOME, "%s :No such welcome", "509" },
 715  /* 510 */
 716    { 0 },
 717  /* 511 */
 718 diff -r a9b437e961ec ircd/s_serv.c
 719 --- a/ircd/s_serv.c
 720 +++ b/ircd/s_serv.c
 721 @@ -57,6 +57,7 @@
 722  #include "struct.h"
 723  #include "sys.h"
 724  #include "userload.h"
 725 +#include "welcome.h"
 726
 727  /* #include <assert.h> -- Now using assert in ircd_log.h */
 728  #include <stdlib.h>
 729 @@ -196,6 +197,7 @@
 730     */
 731    gline_burst(cptr);
 732    jupe_burst(cptr);
 733 +  welcome_burst(cptr);
 734
 735    /*
 736     * Pass on my client information to the new server
 737 diff -r a9b437e961ec ircd/s_stats.c
 738 --- a/ircd/s_stats.c
 739 +++ b/ircd/s_stats.c
 740 @@ -54,6 +54,7 @@
 741  #include "send.h"
 742  #include "struct.h"
 743  #include "userload.h"
 744 +#include "welcome.h"
 745
 746  #include <stdio.h>
 747  #include <stdlib.h>
 748 @@ -654,9 +655,12 @@
 749    { 'V', "vserversmach", (STAT_FLAG_OPERFEAT | STAT_FLAG_VARPARAM | STAT_FLAG_CASESENS), FEAT_HIS_STATS_v,
 750      stats_servers_verbose, 0,
 751      "Verbose server information." },
 752 -  { 'w', "userload", STAT_FLAG_OPERFEAT, FEAT_HIS_STATS_w,
 753 +  { 'w', "userload", STAT_FLAG_OPERFEAT | STAT_FLAG_CASESENS, FEAT_HIS_STATS_w,
 754      calc_load, 0,
 755      "Userload statistics." },
 756 +  { 'W', "welcome", STAT_FLAG_OPERFEAT | STAT_FLAG_CASESENS, FEAT_HIS_STATS_W,
 757 +    welcome_stats, 0,
 758 +    "Welcome messages." },
 759    { 'x', "memusage", STAT_FLAG_OPERFEAT, FEAT_HIS_STATS_x,
 760      stats_meminfo, 0,
 761      "List usage information." },
 762 diff -r a9b437e961ec ircd/s_user.c
 763 --- a/ircd/s_user.c
 764 +++ b/ircd/s_user.c
 765 @@ -63,6 +63,7 @@
 766  #include "userload.h"
 767  #include "version.h"
 768  #include "whowas.h"
 769 +#include "welcome.h"
 770
 771  #include "handlers.h" /* m_motd and m_lusers */
 772
 773 @@ -410,6 +411,9 @@
 774                             cli_info(sptr), NumNick(cptr) /* two %s's */);
 775
 776      IPcheck_connect_succeeded(sptr);
 777 +
 778 +    if (feature_bool(FEAT_WELCOME))
 779 +      welcome_list(sptr, 1);
 780    }
 781    else {
 782      struct Client *acptr = user->server;
 783 diff -r a9b437e961ec ircd/welcome.c
 784 --- /dev/null
 785 +++ b/ircd/welcome.c
 786 @@ -0,0 +1,594 @@
 787 +/*
 788 + * IRC - Internet Relay Chat, ircd/welcome.c
 789 + * Copyright (C) 1990 Jarkko Oikarinen and
 790 + *                    University of Oulu, Finland
 791 + * Copyright (C) 2000 Kevin L. Mitchell <klmitch@mit.edu>
 792 + *
 793 + * This program is free software; you can redistribute it and/or modify
 794 + * it under the terms of the GNU General Public License as published by
 795 + * the Free Software Foundation; either version 1, or (at your option)
 796 + * any later version.
 797 + *
 798 + * This program is distributed in the hope that it will be useful,
 799 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
 800 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 801 + * GNU General Public License for more details.
 802 + *
 803 + * You should have received a copy of the GNU General Public License
 804 + * along with this program; if not, write to the Free Software
 805 + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 806 + */
 807 +/** @file
 808 + * @brief Implementation of welcome message handling functions.
 809 + */
 810 +#include "config.h"
 811 +
 812 +#include "client.h"
 813 +#include "hash.h"
 814 +#include "ircd.h"
 815 +#include "ircd_alloc.h"
 816 +#include "ircd_features.h"
 817 +#include "ircd_log.h"
 818 +#include "ircd_reply.h"
 819 +#include "ircd_string.h"
 820 +#include "match.h"
 821 +#include "msg.h"
 822 +#include "numeric.h"
 823 +#include "numnicks.h"
 824 +#include "s_bsd.h"
 825 +#include "s_debug.h"
 826 +#include "s_misc.h"
 827 +#include "send.h"
 828 +#include "struct.h"
 829 +#include "sys.h"    /* FALSE bleah */
 830 +#include "welcome.h"
 831 +
 832 +/* #include <assert.h> -- Now using assert in ircd_log.h */
 833 +#include <string.h>
 834 +
 835 +
 836 +/** List of welcome messages - first MAX for global, second MAX for local */
 837 +static struct Welcome WelcomeArray[WELCOME_MAX_ENTRIES * 2] = { { 0 } };
 838 +
 839 +
 840 +/** Allocate a new welcome with the given parameters.
 841 + * @param[in] name Name of the welcome message.
 842 + * @param[in] text The welcome message.
 843 + * @param[in] who Who set it.
 844 + * @param[in] timestamp When it was set.
 845 + * @return name Array number of the welcome set.
 846 + */
 847 +static int
 848 +welcome_make(int name, char *text, char *who, time_t timestamp)
 849 +{
 850 +  /* valid range */
 851 +  assert(WelcomeIsValid(name));
 852 +
 853 +  /* store it */
 854 +  ircd_strncpy(WelcomeArray[name].text, text, WELCOMELEN);
 855 +  ircd_strncpy(WelcomeArray[name].who, who, ACCOUNTLEN);
 856 +  WelcomeArray[name].timestamp = timestamp;
 857 +
 858 +  return name;
 859 +}
 860 +
 861 +
 862 +/** Propagate a welcome message.
 863 + * @param[in] cptr Local client that sent us the welcome.
 864 + * @param[in] sptr Originator of the welcome.
 865 + * @param[in] nameint Name of the message.
 866 + * @param[in] timestamp Timestamp of when the message was set.
 867 + * @param[in] who Who set this message.
 868 + * @param[in] text The welcome message.
 869 + * @param[in] flags Flags to set on welcome.
 870 + * @return Zero
 871 + */
 872 +int
 873 +welcome_propagate(struct Client *cptr, struct Client *sptr, int nameint,
 874 +  time_t timestamp, char *who, char *text, unsigned int flags)
 875 +{
 876 +  /* must be global */
 877 +  assert(!(flags & WELCOME_LOCAL));
 878 +
 879 +  sendcmdto_serv_butone(sptr, CMD_WELCOME, cptr, "* %s%s%d %Tu %s :%s",
 880 +    (flags & WELCOME_ANNOUNCE) ? "!" : "", (flags & WELCOME_INSERT) ? "+" : "",
 881 +    nameint, timestamp, who, text);
 882 +
 883 +  return 0;
 884 +}
 885 +
 886 +
 887 +/** Log a welcome message.
 888 + * @param[in] sptr Originator of the welcome.
 889 + * @param[in] msg The message to show.
 890 + * @param[in] flags Flags to set on welcome.
 891 + * @return Zero
 892 + */
 893 +int
 894 +welcome_log(struct Client *sptr, char *msg, unsigned int flags)
 895 +{
 896 +
 897 +  /* inform ops */
 898 +  sendto_opmask_butone(0, SNO_OLDSNO, "%s %s",
 899 +    (feature_bool(FEAT_HIS_SNOTICES) || IsServer(sptr)) ?
 900 +    get_client_name_and_opername(sptr) : cli_name((cli_user(sptr))->server), msg);
 901 +
 902 +  /* log it */
 903 +  log_write(LS_NETWORK, L_INFO, LOG_NOSNOTICE, "%s %s", get_client_name_and_opername(sptr), msg);
 904 +
 905 +  /* welcome by remote user, inform oper of success */
 906 +  if ((flags & WELCOME_LOCAL) && IsUser(sptr) && !MyUser(sptr)) {
 907 +    sendcmdto_one(&me, CMD_NOTICE, sptr, "%C :%s %s",
 908 +      sptr, get_client_name_and_opername(sptr), msg);
 909 +
 910 +    /* TODO: wallops all local changes, by both local and remote opers? */
 911 +    /* tell all opers about the local message being set remotely */
 912 +    sendwallto_group_butone(&me, WALL_WALLOPS, 0, "%s %s", get_client_name_and_opername(sptr), msg);
 913 +  }
 914 +
 915 +  return 0;
 916 +}
 917 +
 918 +
 919 +/** Set a welcome message.
 920 + * @param[in] cptr Local client that sent us the welcome.
 921 + * @param[in] sptr Originator of the welcome.
 922 + * @param[in] nameint Name of the message.
 923 + * @param[in] namearray Array entry.
 924 + * @param[in] timestamp Timestamp of when the message was set.
 925 + * @param[in] who Who set this message.
 926 + * @param[in] text The message.
 927 + * @param[in] flags Flags to set on welcome.
 928 + * @return Zero
 929 + */
 930 +int
 931 +welcome_set(struct Client *cptr, struct Client *sptr, int nameint,
 932 +  int namearray, time_t timestamp, char *who, char *text, unsigned int flags)
 933 +{
 934 +  char msg[BUFSIZE];                    /* msg for logging */
 935 +  int new = 0;
 936 +
 937 +  /* debug */
 938 +  Debug((DEBUG_DEBUG, "welcome_set(\"%s\", \"%s\", %d, %d, %Tu, \"%s\", \"%s\", 0x%04x)",
 939 +   cli_name(cptr), cli_name(sptr), nameint, namearray, timestamp, who, text, flags));
 940 +
 941 +  /* not set */
 942 +  if (WelcomeIsEmpty(namearray))
 943 +    new = 1;
 944 +
 945 +  /* update */
 946 +  welcome_make(namearray, text, who, timestamp);
 947 +
 948 +  /* create msg for log */
 949 +  ircd_snprintf(0, msg, 0, "%s%s%s WELCOME %d \"%s\" %s [%Tu]",
 950 +    new ? "setting" : "changing",
 951 +    (flags & WELCOME_ANNOUNCE) ? " and announcing " : " ",
 952 +    (flags & WELCOME_LOCAL) ? "local" : "global",
 953 +    nameint, text, who, timestamp);
 954 +
 955 +  /* log it */
 956 +  welcome_log(sptr, msg, flags);
 957 +
 958 +  /* propagate it */
 959 +  if (!(flags & WELCOME_LOCAL))
 960 +    welcome_propagate(cptr, sptr, nameint, timestamp, who, text, flags);
 961 +
 962 +  /* announce it */
 963 +  if (flags & WELCOME_ANNOUNCE)
 964 +    welcome_announce(namearray);
 965 +
 966 +  return 0;
 967 +}
 968 +
 969 +
 970 +/** Unset a welcome message.
 971 + * @param[in] cptr Local client that sent us the welcome.
 972 + * @param[in] sptr Originator of the welcome.
 973 + * @param[in] nameint Name of the message.
 974 + * @param[in] namearray Array entry.
 975 + * @param[in] timestamp Timestamp of when the message was set.
 976 + * @param[in] who Who set this message.
 977 + * @param[in] flags Flags to set on welcome.
 978 + * @return Zero
 979 + */
 980 +int
 981 +welcome_unset(struct Client *cptr, struct Client *sptr, int nameint,
 982 +  int namearray, time_t timestamp, char *who, unsigned int flags)
 983 +{
 984 +  char msg[BUFSIZE];                    /* msg for logging */
 985 +  char text[WELCOMELEN + 1];            /* save old text */
 986 +  int i;                                /* loop variable */
 987 +  int empty = namearray;                /* first empty spot in array after namearray */
 988 +  int end = WELCOME_MAX_ENTRIES -1;     /* last element to check in array */
 989 +
 990 +  /* debug */
 991 +  Debug((DEBUG_DEBUG, "welcome_unset(\"%s\", \"%s\", %d, %d, %Tu, \"%s\", 0x%04x)",
 992 +   cli_name(cptr), cli_name(sptr), nameint, namearray, timestamp, who, flags));
 993 +
 994 +  /* save text */
 995 +  ircd_strncpy(text, WelcomeText(namearray), WELCOMELEN);
 996 +
 997 +  /* update */
 998 +  welcome_make(namearray, "", who, timestamp);
 999 +
1000 +  /* create msg for log */
1001 +  ircd_snprintf(0, msg, 0, "unsetting %s WELCOME %d \"%s\" %s [%Tu]",
1002 +    (flags & WELCOME_LOCAL) ? "local" : "global", nameint, text, who, timestamp);
1003 +
1004 +  /* log it */
1005 +  welcome_log(sptr, msg, flags);
1006 +
1007 +  /* propagate it, but not when inserting */
1008 +  if (!(flags & (WELCOME_LOCAL|WELCOME_INSERT)))
1009 +    welcome_propagate(cptr, sptr, nameint, timestamp, who, "", flags);
1010 +
1011 +  /* correct end for local offset */
1012 +  if (flags & WELCOME_LOCAL)
1013 +    end += WELCOME_MAX_ENTRIES;
1014 +
1015 +  /* move entries up, update timestamp */
1016 +  for (i = namearray; i < end; i++)
1017 +    welcome_make(i, WelcomeText(i+1), WelcomeWho(i+1), timestamp);
1018 +
1019 +  /* clear last entry, update timestamp */
1020 +  welcome_make(end, "", who, timestamp);
1021 +
1022 +  return 0;
1023 +}
1024 +
1025 +
1026 +/** Insert a welcome message.
1027 + * @param[in] cptr Local client that sent us the welcome.
1028 + * @param[in] sptr Originator of the welcome.
1029 + * @param[in] nameint Name of the message.
1030 + * @param[in] namearray Array entry.
1031 + * @param[in] timestamp Timestamp of when the message was set.
1032 + * @param[in] who Who set this message.
1033 + * @param[in] text The welcome message.
1034 + * @param[in] flags Flags to set on welcome.
1035 + * @return Zero
1036 + */
1037 +int
1038 +welcome_insert(struct Client *cptr, struct Client *sptr, int nameint,
1039 +  int namearray, time_t timestamp, char *who, char *text, unsigned int flags)
1040 +{
1041 +  char msg[BUFSIZE];                    /* msg for logging */
1042 +  int i;                                /* loop variable */
1043 +  int empty = -1;                       /* first empty spot in array after namearray */
1044 +  int end = WELCOME_MAX_ENTRIES -1;     /* last element to check in array */
1045 +  int last = end;                       /* last welcome message to feed to welcome_unset */
1046 +
1047 +  /* debug */
1048 +  Debug((DEBUG_DEBUG, "welcome_insert(\"%s\", \"%s\", %d, %d, %Tu, \"%s\", \"%s\", 0x%04x)",
1049 +   cli_name(cptr), cli_name(sptr), nameint, namearray, timestamp, who, text, flags));
1050 +
1051 +  /* correct end for local offset */
1052 +  if (flags & WELCOME_LOCAL)
1053 +    end += WELCOME_MAX_ENTRIES;
1054 +
1055 +  /* find first empty spot */
1056 +  for (i = namearray; i <= end; i++) {
1057 +    if (WelcomeIsEmpty(i)) {
1058 +      empty = i;
1059 +      break;
1060 +    }
1061 +  }
1062 +
1063 +  /* no empty spot, need to unset last */
1064 +  if (empty == -1) {
1065 +    welcome_unset(cptr, sptr, end, namearray, timestamp, who, flags);
1066 +    empty = end;
1067 +  }
1068 +
1069 +  /* move entries down, update timestamp */
1070 +  for (i = empty; i > namearray; i--)
1071 +    welcome_make(i, WelcomeText(i-1), WelcomeWho(i-1), timestamp);
1072 +
1073 +  /* correct empty for local offset */
1074 +  if (flags & WELCOME_LOCAL)
1075 +    empty -= WELCOME_MAX_ENTRIES;
1076 +
1077 +  /* create msg for log */
1078 +  if (nameint == empty)
1079 +    ircd_snprintf(0, msg, 0, "moving %s WELCOME message %d one place down",
1080 +      (flags & WELCOME_LOCAL) ? "local" : "global", nameint);
1081 +  else
1082 +    ircd_snprintf(0, msg, 0, "moving %s WELCOME message %d %s %d one place down",
1083 +      (flags & WELCOME_LOCAL) ? "local" : "global", nameint, (empty - nameint > 1) ? "to" : "and" , empty);
1084 +
1085 +  /* log it */
1086 +  welcome_log(sptr, msg, flags);
1087 +
1088 +  /* set it */
1089 +  welcome_set(cptr, sptr, nameint, namearray, timestamp, who, text, flags);
1090 +
1091 +  return 0;
1092 +}
1093 +
1094 +
1095 +/** Change a welcome message.
1096 + * @param[in] cptr Local client that sent us the welcome.
1097 + * @param[in] sptr Originator of the welcome.
1098 + * @param[in] name Name of the message.
1099 + * @param[in] timestamp Timestamp of when the message was set.
1100 + * @param[in] who Who set this message.
1101 + * @param[in] text The welcome message.
1102 + * @param[in] flags Flags to set on welcome.
1103 + * @return Zero
1104 + */
1105 +int
1106 +welcome_do(struct Client *cptr, struct Client *sptr, char *name,
1107 +  time_t timestamp, char *who, char *text, unsigned int flags)
1108 +{
1109 +  int nameint = atoi(name);                /* transform to int */
1110 +  int namearray = nameint - 1;             /* used to test the array element */
1111 +  int max = WELCOME_MAX_ENTRIES;           /* max number of entries */
1112 +  static time_t rate;                      /* rate limit snomask message */
1113 +
1114 +  assert(NULL != cptr);
1115 +  assert(NULL != sptr);
1116 +  assert(NULL != name);
1117 +  assert(NULL != text);
1118 +  assert(NULL != who);
1119 +
1120 +  /* debug */
1121 +  Debug((DEBUG_DEBUG, "welcome_do(\"%s\", \"%s\", \"%s\", %Tu, \"%s\", \"%s\", 0x%04x)",
1122 +   cli_name(cptr), cli_name(sptr), name, timestamp, who, text, flags));
1123 +
1124 +  /* if for some reason timestamp is 0, increase it */
1125 +  if (timestamp == 0)
1126 +    timestamp++;
1127 +
1128 +  /* name empty after taking off the prefixes? */
1129 +  if (EmptyString(name)) {
1130 +    if (IsUser(sptr))
1131 +      sendcmdto_one(&me, CMD_NOTICE, sptr, "%C :WELCOME: No message number given", sptr);
1132 +    else
1133 +      protocol_violation(cptr, "WELCOME: No message number given by %C", sptr);
1134 +    return 0;
1135 +  }
1136 +
1137 +  /* check name */
1138 +  if (!WelcomeIsValid(namearray)) {
1139 +    if (IsUser(sptr))
1140 +      sendcmdto_one(&me, CMD_NOTICE, sptr,
1141 +        "%C :WELCOME: Invalid message number %s - should between 1 and %d",
1142 +        sptr, name, max);
1143 +    else {
1144 +      protocol_violation(cptr, "WELCOME: Invalid message number %s from %C - should be between 1 and %d",
1145 +        name, sptr, max);
1146 +      /* nameint greater than max, perhaps we are upgrading, but used extra slots too soon?
1147 +       *   propagate it manually
1148 +       * TODO: cant do announce here?
1149 +       */
1150 +      if (nameint > max && !(flags & WELCOME_LOCAL))
1151 +        welcome_propagate(cptr, sptr, nameint, timestamp, who, text, flags);
1152 +    }
1153 +    return 0;
1154 +  }
1155 +
1156 +  /* source is user, and is myuser or welcome is local, check length of the message */
1157 +  if ((IsUser(sptr)) && ((MyUser(sptr)) || (flags & WELCOME_LOCAL)) && (strlen(text) > WELCOMELEN)) {
1158 +    sendcmdto_one(&me, CMD_NOTICE, sptr,
1159 +      "%C :WELCOME: The message is too long with %d chars - max is %d chars",
1160 +      sptr, strlen(text), WELCOMELEN);
1161 +    ircd_strncpy(text, text, WELCOMELEN);
1162 +    sendcmdto_one(&me, CMD_NOTICE, sptr,
1163 +      "%C :WELCOME: Change or truncate the message to: \"%s\"", sptr, text);
1164 +    return 0;
1165 +  }
1166 +
1167 +  /* correct namearray for local offset */
1168 +  if (flags & WELCOME_LOCAL)
1169 +    namearray += WELCOME_MAX_ENTRIES;
1170 +
1171 +  /* must be true by now */
1172 +  assert(WelcomeIsValid(namearray));
1173 +
1174 +  /* cannot unset welcome that is not set */
1175 +  if (!WelcomeIsSet(namearray) && EmptyString(text)) {
1176 +
1177 +    /* from user, throw error */
1178 +    if (IsUser(sptr))
1179 +      return send_reply(sptr, ERR_NOSUCHWELCOME, name);
1180 +
1181 +     /* new local welcome from server, but empty - ignore
1182 +      * we do accept a new global welcome message that is empty
1183 +      */
1184 +    if (flags & WELCOME_LOCAL)
1185 +      return 0;
1186 +  }
1187 +
1188 +  /* check if there is something to change */
1189 +  /* we got a record for it */
1190 +  if (WelcomeIsSet(namearray)) {
1191 +
1192 +    /* global */
1193 +    if (!(flags & WELCOME_LOCAL)) {
1194 +
1195 +      /* netburst and we got the same or a newer one
1196 +       *
1197 +       *   we only use the timestamp for resolving conflicts in net burst
1198 +       *   outside of netburst, we simply parse whatever we get
1199 +       *   this way we will not get stuck with a welcome message set by a server
1200 +       *   running ahead with the time
1201 +       */
1202 +      if (IsBurstOrBurstAck(cptr) && timestamp <= WelcomeTS(namearray))
1203 +        return 0;
1204 +
1205 +    /* local welcome - we use our idea of the time */
1206 +    } else
1207 +      timestamp = TStime();
1208 +
1209 +    /* compare new message with old message */
1210 +    if (ircd_strcmp(text, WelcomeText(namearray)) == 0) {
1211 +      if (IsUser(sptr))
1212 +        sendcmdto_one(&me, CMD_NOTICE, sptr,
1213 +          "%C :WELCOME: Cannot change %s message for %s - nothing to change.",
1214 +          sptr, (flags & WELCOME_LOCAL) ? "local" : "global", name);
1215 +      return 0;
1216 +    }
1217 +  }
1218 +
1219 +  /* do not insert for last global/local entry and when not set yet */
1220 +  if ((flags & WELCOME_INSERT) && ((!WelcomeIsSet(namearray)) || (nameint == max)))
1221 +    flags &= ~WELCOME_INSERT;
1222 +
1223 +  /* TODO: rate limited for what? max 10 welcome messages..? */
1224 +  /* possible timestamp drift - warn ops */
1225 +  if (timestamp - TStime() > WELCOME_MAX_DRIFT) {
1226 +    sendto_opmask_butone_ratelimited(0, SNO_NETWORK, &rate,
1227 +      "Possible timestamp drift from %C; timestamp in WELCOME message is %is ahead of time",
1228 +      IsServer(sptr) ? sptr : cli_user(sptr)->server, timestamp - TStime());
1229 +
1230 +    /* warn remote oper too */
1231 +    if (IsUser(sptr))
1232 +      sendcmdto_one(&me, CMD_NOTICE, sptr,
1233 +        "%C :Possible timestamp drift from %C; timestamp in WELCOME message is %is ahead of time",
1234 +        sptr, cli_user(sptr)->server, timestamp - TStime());
1235 +  }
1236 +
1237 +  /* unset */
1238 +  if (EmptyString(text)) {
1239 +    /* clear insert flag,
1240 +     * when this flag is set, welcome_unset() assumes it is being called from welcome_insert()
1241 +     * and wont propagate the change
1242 +     */
1243 +    flags &= ~WELCOME_INSERT;
1244 +    return welcome_unset(cptr, sptr, nameint, namearray, timestamp, who, flags);
1245 +  }
1246 +
1247 +  /* insert */
1248 +  if (flags & WELCOME_INSERT)
1249 +    return welcome_insert(cptr, sptr, nameint, namearray, timestamp, who, text, flags);
1250 +
1251 +  /* new or change */
1252 +  return welcome_set(cptr, sptr, nameint, namearray, timestamp, who, text, flags);
1253 +}
1254 +
1255 +
1256 +/** Announce a welcome message to local clients.
1257 + * @param[in] name Welcome message to announce.
1258 + */
1259 +void
1260 +welcome_announce(int name)
1261 +{
1262 +  struct Client *acptr;
1263 +  struct MsgBuf *msgbuf;
1264 +  int i;
1265 +
1266 +  /* valid range, set and not empty */
1267 +  assert(WelcomeIsValid(name));
1268 +  assert(WelcomeIsSet(name));
1269 +  assert(!WelcomeIsEmpty(name));
1270 +
1271 +  /* TODO: target is $* as if it were a global broadcast
1272 +   * could make it $servername for local message announcement
1273 +   * but the type is shown between [ ] already
1274 +   * either [Network] or [servername] - using $* is just shorter.
1275 +   */
1276 +  /* build msgbuf */
1277 +  msgbuf = msgq_make(0, ":%C %s $* :[%s] %s", &me, MSG_NOTICE,
1278 +    name >= WELCOME_MAX_ENTRIES ? cli_name(&me) : feature_str(FEAT_NETWORK),
1279 +    WelcomeText(name));
1280 +
1281 +  /* go over local clients */
1282 +  for (i = HighestFd; i > 0; --i) {
1283 +
1284 +    /* skip unregistered clients, skip servers */
1285 +    if (!(acptr = LocalClientArray[i]) || !IsRegistered(acptr) || IsServer(acptr))
1286 +      continue;
1287 +
1288 +    /* send it away */
1289 +    send_buffer(acptr, msgbuf, 0);
1290 +  }
1291 +}
1292 +
1293 +
1294 +/** Send the full list of welcome message to \a cptr.
1295 + * @param[in] cptr Local server to send welcomes to.
1296 + */
1297 +void
1298 +welcome_burst(struct Client *cptr)
1299 +{
1300 +  int name;
1301 +
1302 +  assert(NULL != cptr);
1303 +
1304 +  /* loop over global entries - 0 to max - 1*/
1305 +  for (name = 0; name <= WELCOME_MAX_ENTRIES - 1; name++) {
1306 +    if (WelcomeIsSet(name))
1307 +      sendcmdto_one(&me, CMD_WELCOME, cptr, "* %d %Tu %s :%s",
1308 +        name + 1, WelcomeTS(name), WelcomeWho(name), WelcomeText(name));
1309 +  }
1310 +}
1311 +
1312 +
1313 +/** List welcome messages.
1314 + * @param[in] sptr Client requesting the listing.
1315 + * @param[in] connect When non zero do not report no welcome is set
1316 + * @return Zero.
1317 + */
1318 +int
1319 +welcome_list(struct Client *sptr, int connect)
1320 +{
1321 +  int found = 0, local = 0, name;
1322 +
1323 +  assert(NULL != sptr);
1324 +
1325 +  /* loop over all entries - range 0 to 2 * max - 1 */
1326 +  for (name = 0; name <= 2 * WELCOME_MAX_ENTRIES - 1; name++) {
1327 +
1328 +    /* local entries now */
1329 +    if (name == WELCOME_MAX_ENTRIES)
1330 +      local = 1;
1331 +
1332 +    /* not set or empty - skip */
1333 +    if (!WelcomeIsSet(name) || WelcomeIsEmpty(name))
1334 +      continue;
1335 +
1336 +    /* got one */
1337 +    found++;
1338 +    sendcmdto_one(&me, CMD_NOTICE, sptr, "%C :[%s] %s",
1339 +      sptr, local ? cli_name(&me) : feature_str(FEAT_NETWORK), WelcomeText(name));
1340 +  }
1341 +
1342 +  /* nothing set */
1343 +  if (!found && !connect)
1344 +    sendcmdto_one(&me, CMD_NOTICE, sptr, "%C :No welcome message set.", sptr);
1345 +
1346 +  return 0;
1347 +}
1348 +
1349 +
1350 +/** Statistics callback to list Welcome messages.
1351 + * @param[in] sptr Client requesting statistics.
1352 + * @param[in] sd Stats descriptor for request (ignored).
1353 + * @param[in] param Extra parameter from user (ignored).
1354 + */
1355 +void
1356 +welcome_stats(struct Client *sptr, const struct StatDesc *sd, char *param)
1357 +{
1358 +  int name, local = 0;
1359 +
1360 +  assert(NULL != sptr);
1361 +
1362 +  /* loop over all entries - range 0 to 2 * max - 1*/
1363 +  for (name = 0; name <= 2 * WELCOME_MAX_ENTRIES - 1; name++) {
1364 +
1365 +    /* local entries now */
1366 +    if (name == WELCOME_MAX_ENTRIES)
1367 +      local = 1;
1368 +
1369 +    /* not set */
1370 +    if (!WelcomeIsSet(name))
1371 +      continue;
1372 +
1373 +    /* send it */
1374 +    send_reply(sptr, RPL_STATSWELCOME,
1375 +      local ? name + 1 - WELCOME_MAX_ENTRIES : name + 1,
1376 +      local ? cli_name(&me) : "*",
1377 +      WelcomeWho(name), WelcomeTS(name),
1378 +      WelcomeIsEmpty(name) ? "<Empty>" : WelcomeText(name));
1379 +  }
1380 +}