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