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Comparing ircd-hybrid/trunk/src/user.c (file contents):
Revision 4704 by michael, Sun Oct 5 16:25:02 2014 UTC vs.
Revision 7601 by michael, Mon Jun 13 19:03:05 2016 UTC

# Line 1 | Line 1
1   /*
2   *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3   *
4 < *  Copyright (c) 1997-2014 ircd-hybrid development team
4 > *  Copyright (c) 1997-2016 ircd-hybrid development team
5   *
6   *  This program is free software; you can redistribute it and/or modify
7   *  it under the terms of the GNU General Public License as published by
# Line 19 | Line 19
19   *  USA
20   */
21  
22 < /*! \file s_user.c
22 > /*! \file user.c
23   * \brief User related functions.
24   * \version $Id$
25   */
# Line 31 | Line 31
31   #include "channel_mode.h"
32   #include "client.h"
33   #include "hash.h"
34 + #include "id.h"
35   #include "irc_string.h"
36   #include "ircd.h"
37   #include "listener.h"
38   #include "motd.h"
39   #include "numeric.h"
40   #include "conf.h"
41 + #include "conf_gecos.h"
42   #include "log.h"
43   #include "server.h"
44   #include "send.h"
# Line 47 | Line 49
49   #include "misc.h"
50   #include "parse.h"
51   #include "watch.h"
52 + #include "isupport.h"
53 + #include "tls.h"
54  
55   static char umode_buffer[IRCD_BUFSIZE];
52 static const char *uid_get(void);
56  
57 < /* Used for building up the isupport string,
58 < * used with init_isupport, add_isupport, delete_isupport
56 < */
57 < struct Isupport
58 < {
59 <  dlink_node node;
60 <  char *name;
61 <  char *options;
62 <  int number;
63 < };
64 <
65 < static dlink_list support_list;
66 < static dlink_list support_list_lines;
67 <
68 < /* memory is cheap. map 0-255 to equivalent mode */
69 < const unsigned int user_modes[256] =
57 > const struct user_modes *umode_map[256];
58 > const struct user_modes  umode_tab[] =
59   {
60 <  /* 0x00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x0F */
61 <  /* 0x10 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x1F */
62 <  /* 0x20 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x2F */
63 <  /* 0x30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x3F */
64 <  0,                  /* @ */
65 <  0,                  /* A */
66 <  0,                  /* B */
67 <  0,                  /* C */
68 <  UMODE_DEAF,         /* D */
69 <  0,                  /* E */
70 <  UMODE_FARCONNECT,   /* F */
71 <  UMODE_SOFTCALLERID, /* G */
72 <  UMODE_HIDDEN,       /* H */
73 <  0,                  /* I */
74 <  0,                  /* J */
75 <  0,                  /* K */
76 <  0,                  /* L */
77 <  0,                  /* M */
78 <  0,                  /* N */
79 <  0,                  /* O */
80 <  0,                  /* P */
81 <  0,                  /* Q */
82 <  UMODE_REGONLY,      /* R */
83 <  UMODE_SSL,          /* S */
84 <  0,                  /* T */
85 <  0,                  /* U */
86 <  0,                  /* V */
87 <  UMODE_WEBIRC,       /* W */
88 <  0,                  /* X */
100 <  0,                  /* Y */
101 <  0,                  /* Z 0x5A */
102 <  0, 0, 0, 0, 0,      /* 0x5F   */
103 <  0,                  /* 0x60   */
104 <  UMODE_ADMIN,        /* a */
105 <  UMODE_BOTS,         /* b */
106 <  UMODE_CCONN,        /* c */
107 <  UMODE_DEBUG,        /* d */
108 <  UMODE_EXTERNAL,     /* e */
109 <  UMODE_FULL,         /* f */
110 <  UMODE_CALLERID,     /* g */
111 <  0,                  /* h */
112 <  UMODE_INVISIBLE,    /* i */
113 <  UMODE_REJ,          /* j */
114 <  UMODE_SKILL,        /* k */
115 <  UMODE_LOCOPS,       /* l */
116 <  0,                  /* m */
117 <  UMODE_NCHANGE,      /* n */
118 <  UMODE_OPER,         /* o */
119 <  UMODE_HIDECHANS,    /* p */
120 <  UMODE_HIDEIDLE,     /* q */
121 <  UMODE_REGISTERED,   /* r */
122 <  UMODE_SERVNOTICE,   /* s */
123 <  0,                  /* t */
124 <  UMODE_UNAUTH,       /* u */
125 <  0,                  /* v */
126 <  UMODE_WALLOP,       /* w */
127 <  UMODE_HIDDENHOST,   /* x */
128 <  UMODE_SPY,          /* y */
129 <  0,                  /* z      0x7A */
130 <  0,0,0,0,0,          /* 0x7B - 0x7F */
131 <
132 <  /* 0x80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x8F */
133 <  /* 0x90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x9F */
134 <  /* 0xA0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xAF */
135 <  /* 0xB0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xBF */
136 <  /* 0xC0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xCF */
137 <  /* 0xD0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xDF */
138 <  /* 0xE0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xEF */
139 <  /* 0xF0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0  /* 0xFF */
60 >  { 'D', UMODE_DEAF         },
61 >  { 'F', UMODE_FARCONNECT   },
62 >  { 'G', UMODE_SOFTCALLERID },
63 >  { 'H', UMODE_HIDDEN       },
64 >  { 'R', UMODE_REGONLY      },
65 >  { 'S', UMODE_SSL          },
66 >  { 'W', UMODE_WEBIRC       },
67 >  { 'a', UMODE_ADMIN        },
68 >  { 'b', UMODE_BOTS         },
69 >  { 'c', UMODE_CCONN        },
70 >  { 'd', UMODE_DEBUG        },
71 >  { 'e', UMODE_EXTERNAL     },
72 >  { 'f', UMODE_FULL         },
73 >  { 'g', UMODE_CALLERID     },
74 >  { 'i', UMODE_INVISIBLE    },
75 >  { 'j', UMODE_REJ          },
76 >  { 'k', UMODE_SKILL        },
77 >  { 'l', UMODE_LOCOPS       },
78 >  { 'n', UMODE_NCHANGE      },
79 >  { 'o', UMODE_OPER         },
80 >  { 'p', UMODE_HIDECHANS    },
81 >  { 'q', UMODE_HIDEIDLE     },
82 >  { 'r', UMODE_REGISTERED   },
83 >  { 's', UMODE_SERVNOTICE   },
84 >  { 'u', UMODE_UNAUTH       },
85 >  { 'w', UMODE_WALLOP       },
86 >  { 'x', UMODE_HIDDENHOST   },
87 >  { 'y', UMODE_SPY          },
88 >  { '\0', 0 }
89   };
90  
91   void
92 < assemble_umode_buffer(void)
92 > user_modes_init(void)
93   {
145  unsigned int idx = 0;
94    char *umode_buffer_ptr = umode_buffer;
95  
96 <  for (; idx < (sizeof(user_modes) / sizeof(user_modes[0])); ++idx)
97 <    if (user_modes[idx])
98 <      *umode_buffer_ptr++ = idx;
96 >  for (const struct user_modes *tab = umode_tab; tab->c; ++tab)
97 >  {
98 >    umode_map[tab->c] = tab;
99 >    *umode_buffer_ptr++ = tab->c;
100 >  }
101  
102    *umode_buffer_ptr = '\0';
103   }
# Line 162 | Line 112 | void
112   show_lusers(struct Client *source_p)
113   {
114    if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER))
115 <    sendto_one_numeric(source_p, &me, RPL_LUSERCLIENT, (Count.total-Count.invisi),
115 >    sendto_one_numeric(source_p, &me, RPL_LUSERCLIENT, (Count.total - Count.invisi),
116                         Count.invisi, dlink_list_length(&global_server_list));
117    else
118 <    sendto_one_numeric(source_p, &me, RPL_LUSERCLIENT,
119 <                       (Count.total - Count.invisi), Count.invisi, 1);
118 >    sendto_one_numeric(source_p, &me, RPL_LUSERCLIENT, (Count.total - Count.invisi),
119 >                       Count.invisi, 1);
120  
121    if (Count.oper)
122      sendto_one_numeric(source_p, &me, RPL_LUSEROP, Count.oper);
# Line 201 | Line 151 | show_lusers(struct Client *source_p)
151      Count.max_loc_con = Count.local + Count.myserver;
152   }
153  
204 /* show_isupport()
205 *
206 * inputs       - pointer to client
207 * output       - NONE
208 * side effects - display to client what we support (for them)
209 */
210 void
211 show_isupport(struct Client *source_p)
212 {
213  const dlink_node *ptr = NULL;
214
215  DLINK_FOREACH(ptr, support_list_lines.head)
216    sendto_one_numeric(source_p, &me, RPL_ISUPPORT, ptr->data);
217 }
218
219
154   /* report_and_set_user_flags()
155   *
156   * inputs       - pointer to source_p
# Line 230 | Line 164 | report_and_set_user_flags(struct Client
164   {
165    /* If this user is being spoofed, tell them so */
166    if (IsConfDoSpoofIp(conf))
167 <    sendto_one_notice(source_p, &me, ":*** Spoofing your IP. Congrats.");
167 >    sendto_one_notice(source_p, &me, ":*** Spoofing your IP");
168  
169 <  /* If this user is in the exception class, Set it "E lined" */
169 >  /* If this user is in the exception class, set it "E lined" */
170    if (IsConfExemptKline(conf))
171    {
172 <    SetExemptKline(source_p);
173 <    sendto_one_notice(source_p, &me, ":*** You are exempt from K/D/G lines. Congrats.");
172 >    AddFlag(source_p, FLAGS_EXEMPTKLINE);
173 >    sendto_one_notice(source_p, &me, ":*** You are exempt from K/D lines");
174    }
175  
176 <  /*
243 <   * The else here is to make sure that G line exempt users
244 <   * do not get noticed twice.
245 <   */
246 <  else if (IsConfExemptGline(conf))
176 >  if (IsConfExemptXline(conf))
177    {
178 <    SetExemptGline(source_p);
179 <    sendto_one_notice(source_p, &me, ":*** You are exempt from G lines. Congrats.");
178 >    AddFlag(source_p, FLAGS_EXEMPTXLINE);
179 >    sendto_one_notice(source_p, &me, ":*** You are exempt from X lines");
180    }
181  
182    if (IsConfExemptResv(conf))
183    {
184 <    SetExemptResv(source_p);
185 <    sendto_one_notice(source_p, &me, ":*** You are exempt from resvs. Congrats.");
184 >    AddFlag(source_p, FLAGS_EXEMPTRESV);
185 >    sendto_one_notice(source_p, &me, ":*** You are exempt from resvs");
186    }
187  
188    /* If this user is exempt from user limits set it "F lined" */
189    if (IsConfExemptLimits(conf))
190    {
191 <    SetExemptLimits(source_p);
192 <    sendto_one_notice(source_p, &me, ":*** You are exempt from user limits. Congrats.");
191 >    AddFlag(source_p, FLAGS_NOLIMIT);
192 >    sendto_one_notice(source_p, &me, ":*** You are exempt from user limits");
193    }
194  
195    if (IsConfCanFlood(conf))
196    {
197 <    SetCanFlood(source_p);
198 <    sendto_one_notice(source_p, &me, ":*** You are exempt from flood "
269 <                      "protection, aren't you fearsome.");
197 >    AddFlag(source_p, FLAGS_CANFLOOD);
198 >    sendto_one_notice(source_p, &me, ":*** You are exempt from flood protection");
199    }
200   }
201  
# Line 281 | Line 210 | report_and_set_user_flags(struct Client
210   static void
211   introduce_client(struct Client *source_p)
212   {
213 <  dlink_node *ptr = NULL;
213 >  dlink_node *node = NULL;
214    char ubuf[IRCD_BUFSIZE] = "";
215  
216 <  if (MyClient(source_p))
288 <    send_umode(source_p, source_p, 0, ubuf);
289 <  else
290 <    send_umode(NULL, source_p, 0, ubuf);
291 <
216 >  send_umode(source_p, MyConnect(source_p), 0, ubuf);
217    watch_check_hash(source_p, RPL_LOGON);
218  
219    if (ubuf[0] == '\0')
# Line 297 | Line 222 | introduce_client(struct Client *source_p
222      ubuf[1] = '\0';
223    }
224  
225 <  DLINK_FOREACH(ptr, local_server_list.head)
225 >  DLINK_FOREACH(node, local_server_list.head)
226    {
227 <    struct Client *server = ptr->data;
227 >    struct Client *server = node->data;
228  
229      if (server == source_p->from)
230        continue;
231  
232 <    if (IsCapable(server, CAP_SVS))
233 <      sendto_one(server, ":%s UID %s %d %lu %s %s %s %s %s %s :%s",
234 <                 source_p->servptr->id,
235 <                 source_p->name, source_p->hopcount+1,
236 <                 (unsigned long)source_p->tsinfo,
237 <                 ubuf, source_p->username, source_p->host,
238 <                 (MyClient(source_p) && IsIPSpoof(source_p)) ?
239 <                 "0" : source_p->sockhost, source_p->id,
315 <                 source_p->svid,
316 <                 source_p->info);
317 <    else
318 <      sendto_one(server, ":%s UID %s %d %lu %s %s %s %s %s :%s",
319 <                 source_p->servptr->id,
320 <                 source_p->name, source_p->hopcount+1,
321 <                 (unsigned long)source_p->tsinfo,
322 <                 ubuf, source_p->username, source_p->host,
323 <                 (MyClient(source_p) && IsIPSpoof(source_p)) ?
324 <                 "0" : source_p->sockhost, source_p->id, source_p->info);
232 >    sendto_one(server, ":%s UID %s %u %ju %s %s %s %s %s %s :%s",
233 >               source_p->servptr->id,
234 >               source_p->name, source_p->hopcount+1,
235 >               source_p->tsinfo,
236 >               ubuf, source_p->username, source_p->host,
237 >               source_p->sockhost, source_p->id,
238 >               source_p->account,
239 >               source_p->info);
240  
241      if (!EmptyString(source_p->certfp))
242        sendto_one(server, ":%s CERTFP %s", source_p->id, source_p->certfp);
# Line 337 | Line 252 | introduce_client(struct Client *source_p
252   static void
253   user_welcome(struct Client *source_p)
254   {
340 #if defined(__TIME__) && defined(__DATE__)
255    static const char built_date[] = __DATE__ " at " __TIME__;
342 #else
343  static const char built_date[] = "unknown";
344 #endif
256  
346 #ifdef HAVE_LIBCRYPTO
257    if (HasFlag(source_p, FLAGS_SSL))
258    {
259      AddUMode(source_p, UMODE_SSL);
260      sendto_one_notice(source_p, &me, ":*** Connected securely via %s",
261 <                      ssl_get_cipher(source_p->connection->fd.ssl));
261 >                      tls_get_cipher(&source_p->connection->fd.ssl));
262    }
353 #endif
263  
264    sendto_one_numeric(source_p, &me, RPL_WELCOME, ConfigServerInfo.network_name,
265                       source_p->name);
266    sendto_one_numeric(source_p, &me, RPL_YOURHOST,
267 <                     get_listener_name(source_p->connection->listener), ircd_version);
267 >                     listener_get_name(source_p->connection->listener), ircd_version);
268    sendto_one_numeric(source_p, &me, RPL_CREATED, built_date);
269    sendto_one_numeric(source_p, &me, RPL_MYINFO, me.name, ircd_version, umode_buffer);
361  show_isupport(source_p);
362  sendto_one_numeric(source_p, &me, RPL_YOURID, source_p->id);
270  
271 +  isupport_show(source_p);
272    show_lusers(source_p);
273    motd_signon(source_p);
274   }
# Line 374 | Line 282 | user_welcome(struct Client *source_p)
282   static int
283   check_xline(struct Client *source_p)
284   {
285 <  struct MaskItem *conf = NULL;
378 <  const char *reason = NULL;
379 <
380 <  if ((conf = find_matching_name_conf(CONF_XLINE, source_p->info, NULL, NULL, 0)))
381 <  {
382 <    ++conf->count;
285 >  const struct GecosItem *gecos = NULL;
286  
287 <    if (conf->reason)
288 <      reason = conf->reason;
386 <    else
387 <      reason = CONF_NOREASON;
287 >  if (HasFlag(source_p, FLAGS_EXEMPTXLINE))
288 >    return 0;
289  
290 +  if ((gecos = gecos_find(source_p->info, match)))
291 +  {
292      sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE,
293                           "X-line Rejecting [%s] [%s], user %s [%s]",
294 <                         source_p->info, reason,
294 >                         source_p->info, gecos->reason,
295                           get_client_name(source_p, HIDE_IP),
296                           source_p->sockhost);
297  
# Line 408 | Line 311 | check_xline(struct Client *source_p)
311   void
312   register_local_user(struct Client *source_p)
313   {
411  const char *id = NULL;
314    const struct MaskItem *conf = NULL;
315  
316    assert(source_p == source_p->from);
317    assert(MyConnect(source_p));
318 +  assert(IsUnknown(source_p));
319    assert(!source_p->connection->registration);
320  
418  ClearCap(source_p, CAP_TS6);
419
321    if (ConfigGeneral.ping_cookie)
322    {
323 <    if (!IsPingSent(source_p) && !source_p->connection->random_ping)
323 >    if (!HasFlag(source_p, FLAGS_PINGSENT) && !source_p->connection->random_ping)
324      {
325        do
326          source_p->connection->random_ping = genrand_int32();
327        while (!source_p->connection->random_ping);
328  
329 <      sendto_one(source_p, "PING :%u",
330 <                 source_p->connection->random_ping);
430 <      SetPingSent(source_p);
329 >      sendto_one(source_p, "PING :%u", source_p->connection->random_ping);
330 >      AddFlag(source_p, FLAGS_PINGSENT);
331        return;
332      }
333  
334 <    if (!HasPingCookie(source_p))
334 >    if (!HasFlag(source_p, FLAGS_PING_COOKIE))
335        return;
336    }
337  
# Line 446 | Line 346 | register_local_user(struct Client *sourc
346    {
347      sendto_one_notice(source_p, &me, ":*** Notice -- You have an illegal "
348                        "character in your hostname");
349 <    strlcpy(source_p->host, source_p->sockhost,
450 <            sizeof(source_p->host));
349 >    strlcpy(source_p->host, source_p->sockhost, sizeof(source_p->host));
350    }
351  
352    conf = source_p->connection->confs.head->data;
353  
354 <  if (!IsGotId(source_p))
354 >  if (!HasFlag(source_p, FLAGS_GOTID))
355    {
356      char username[USERLEN + 1] = "";
458    const char *p = username;
357      unsigned int i = 0;
358  
359      if (IsNeedIdentd(conf))
# Line 472 | Line 370 | register_local_user(struct Client *sourc
370      if (!IsNoTilde(conf))
371        source_p->username[i++] = '~';
372  
373 <    for (; *p && i < USERLEN; ++p)
373 >    for (const char *p = username; *p && i < USERLEN; ++p)
374        source_p->username[i++] = *p;
375  
376      source_p->username[i] = '\0';
# Line 493 | Line 391 | register_local_user(struct Client *sourc
391  
392    /*
393     * Don't free source_p->connection->password here - it can be required
394 <   * by masked /stats I if there are auth{} blocks with need_password = no;
394 >   * by masked /stats I if there are auth {} blocks with need_password = no;
395     * --adx
396     */
397  
# Line 513 | Line 411 | register_local_user(struct Client *sourc
411     * probably be just a percentage of the MAXCLIENTS...
412     *   -Taner
413     */
414 <  if ((Count.local >= ConfigServerInfo.max_clients + MAX_BUFFER) ||
415 <      (Count.local >= ConfigServerInfo.max_clients && !IsExemptLimits(source_p)))
414 >  if ((Count.local >= GlobalSetOptions.maxclients + MAX_BUFFER) ||
415 >      (Count.local >= GlobalSetOptions.maxclients && !HasFlag(source_p, FLAGS_NOLIMIT)))
416    {
417      sendto_realops_flags(UMODE_FULL, L_ALL, SEND_NOTICE,
418                           "Too many clients, rejecting %s[%s].",
# Line 540 | Line 438 | register_local_user(struct Client *sourc
438    if (check_xline(source_p))
439      return;
440  
441 +  const char *id;
442    while (hash_find_id((id = uid_get())))
443      ;
444  
# Line 549 | Line 448 | register_local_user(struct Client *sourc
448    sendto_realops_flags(UMODE_CCONN, L_ALL, SEND_NOTICE,
449                         "Client connecting: %s (%s@%s) [%s] {%s} [%s] <%s>",
450                         source_p->name, source_p->username, source_p->host,
451 <                       ConfigGeneral.hide_spoof_ips && IsIPSpoof(source_p) ?
553 <                       "255.255.255.255" : source_p->sockhost,
451 >                       source_p->sockhost,
452                         get_client_class(&source_p->connection->confs),
453                         source_p->info, source_p->id);
454  
# Line 565 | Line 463 | register_local_user(struct Client *sourc
463      Count.max_loc = Count.local;
464  
465      if (!(Count.max_loc % 10))
466 <      sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
466 >      sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE,
467                             "New maximum local client connections: %u",
468                             Count.max_loc);
469    }
# Line 585 | Line 483 | register_local_user(struct Client *sourc
483                    &unknown_list, &local_client_list);
484  
485    user_welcome(source_p);
486 <  add_user_host(source_p->username, source_p->host, 0);
487 <  SetUserHost(source_p);
486 >  userhost_add(source_p->username, source_p->host, 0);
487 >  AddFlag(source_p, FLAGS_USERHOST);
488  
489    introduce_client(source_p);
490   }
# Line 614 | Line 512 | register_remote_user(struct Client *sour
512                           source_p->host, source_p->servptr->name,
513                           target_p->name, target_p->from->name);
514      sendto_one(source_p->from,
515 <               ":%s KILL %s :%s (NICK from wrong direction (%s != %s))",
515 >               ":%s KILL %s :%s (UID from wrong direction (%s != %s))",
516                 me.id, source_p->id, me.name, source_p->servptr->name,
517                 target_p->from->name);
518  
519      AddFlag(source_p, FLAGS_KILLED);
520 <    exit_client(source_p, "USER server wrong direction");
520 >    exit_client(source_p, "UID server wrong direction");
521      return;
522    }
523  
# Line 636 | Line 534 | register_remote_user(struct Client *sour
534    SetClient(source_p);
535    dlinkAdd(source_p, &source_p->lnode, &source_p->servptr->serv->client_list);
536    dlinkAdd(source_p, &source_p->node, &global_client_list);
537 <  add_user_host(source_p->username, source_p->host, 1);
538 <  SetUserHost(source_p);
537 >  userhost_add(source_p->username, source_p->host, 1);
538 >  AddFlag(source_p, FLAGS_USERHOST);
539  
540    if (HasFlag(source_p->servptr, FLAGS_EOB))
541      sendto_realops_flags(UMODE_FARCONNECT, L_ALL, SEND_NOTICE,
542 <                         "Client connecting at %s: %s (%s@%s) [%s] <%s>",
542 >                         "Client connecting at %s: %s (%s@%s) [%s] [%s] <%s>",
543                           source_p->servptr->name,
544                           source_p->name, source_p->username, source_p->host,
545 <                         source_p->info, source_p->id);
545 >                         source_p->sockhost, source_p->info, source_p->id);
546  
547    introduce_client(source_p);
548   }
# Line 689 | Line 587 | valid_hostname(const char *hostname)
587   int
588   valid_username(const char *username, const int local)
589   {
692  unsigned int dots = 0;
590    const char *p = username;
591  
592    assert(p);
# Line 707 | Line 604 | valid_username(const char *username, con
604  
605    if (local)
606    {
607 +    unsigned int dots = 0;
608 +
609      while (*++p)
610      {
611        if (*p == '.' && ConfigGeneral.dots_in_ident)
# Line 742 | Line 641 | valid_nickname(const char *nickname, con
641   {
642    const char *p = nickname;
643  
644 <  assert(nickname && *nickname);
644 >  assert(p);
645  
646    /*
647     * Nicks can't start with a digit or - or be 0 length.
648     */
649 <  if (*p == '-' || (IsDigit(*p) && local) || *p == '\0')
649 >  if (EmptyString(p) || *p == '-' || (IsDigit(*p) && local))
650      return 0;
651  
652    for (; *p; ++p)
# Line 757 | Line 656 | valid_nickname(const char *nickname, con
656    return p - nickname <= NICKLEN;
657   }
658  
659 < /* send_umode()
660 < * send the MODE string for user (user) to connection client_p
661 < * -avalon
662 < *
663 < * inputs       - client_p
765 < *              - source_p
766 < *              - int old
767 < *              - sendmask mask of modes to send
768 < *              - suplied umode_buf
769 < * output       - NONE
659 > /*! \brief Builds a mode change string to buffer pointed by \a buf
660 > * \param client_p  Pointer to client
661 > * \param send      Whether to send a MODE message to client_p
662 > * \param old       Old user mode to compare against when building new mode buffer
663 > * \param buf       Pointer to buffer to build string in
664   */
665   void
666 < send_umode(struct Client *client_p, struct Client *source_p,
667 <           unsigned int old, char *umode_buf)
666 > send_umode(struct Client *client_p, unsigned int send,
667 >           unsigned int old, char *buf)
668   {
669 <  char *m = umode_buf;
669 >  char *m = buf;
670    int what = 0;
671  
672    /*
673     * Build a string in umode_buf to represent the change in the user's
674     * mode between the new (source_p->umodes) and 'old'.
675     */
676 <  for (unsigned int i = 0; i < 128; ++i)
676 >  for (const struct user_modes *tab = umode_tab; tab->c; ++tab)
677    {
678 <    unsigned int flag = user_modes[i];
785 <
786 <    if (!flag)
787 <      continue;
788 <
789 <    if ((flag & old) && !HasUMode(source_p, flag))
678 >    if ((tab->flag & old) && !HasUMode(client_p, tab->flag))
679      {
680        if (what == MODE_DEL)
681 <        *m++ = (char)i;
681 >        *m++ = tab->c;
682        else
683        {
684          what = MODE_DEL;
685          *m++ = '-';
686 <        *m++ = (char)i;
686 >        *m++ = tab->c;
687        }
688      }
689 <    else if (!(flag & old) && HasUMode(source_p, flag))
689 >    else if (!(tab->flag & old) && HasUMode(client_p, tab->flag))
690      {
691        if (what == MODE_ADD)
692 <        *m++ = (char)i;
692 >        *m++ = tab->c;
693        else
694        {
695          what = MODE_ADD;
696          *m++ = '+';
697 <        *m++ = (char)i;
697 >        *m++ = tab->c;
698        }
699      }
700    }
701  
702    *m = '\0';
703  
704 <  if (*umode_buf && client_p)
704 >  if (send && *buf)
705      sendto_one(client_p, ":%s!%s@%s MODE %s :%s",
706                 client_p->name, client_p->username,
707 <               client_p->host, client_p->name, umode_buf);
707 >               client_p->host, client_p->name, buf);
708   }
709  
710   /* send_umode_out()
# Line 825 | Line 714 | send_umode(struct Client *client_p, stru
714   * side effects - Only send ubuf out to servers that know about this client
715   */
716   void
717 < send_umode_out(struct Client *client_p, struct Client *source_p,
829 <               unsigned int old)
717 > send_umode_out(struct Client *source_p, unsigned int old)
718   {
719    char buf[IRCD_BUFSIZE] = "";
720  
721 <  send_umode(NULL, source_p, old, buf);
721 >  send_umode(source_p, MyConnect(source_p), old, buf);
722  
723    if (buf[0])
724 <    sendto_server(source_p, NOCAPS, NOCAPS, ":%s MODE %s :%s",
724 >    sendto_server(source_p, 0, 0, ":%s MODE %s :%s",
725                    source_p->id, source_p->id, buf);
838
839  if (client_p && MyClient(client_p))
840    send_umode(client_p, source_p, old, buf);
726   }
727  
728   void
729   user_set_hostmask(struct Client *target_p, const char *hostname, const int what)
730   {
731 <  dlink_node *ptr = NULL;
731 >  dlink_node *node = NULL;
732  
733    if (!strcmp(target_p->host, hostname))
734      return;
# Line 852 | Line 737 | user_set_hostmask(struct Client *target_
737    {
738      case MODE_ADD:
739        AddUMode(target_p, UMODE_HIDDENHOST);
855      AddFlag(target_p, FLAGS_IP_SPOOFING);
740        break;
741      case MODE_DEL:
742        DelUMode(target_p, UMODE_HIDDENHOST);
859
860      if (!HasFlag(target_p, FLAGS_AUTH_SPOOF))
861        DelFlag(target_p, FLAGS_IP_SPOOFING);
743        break;
744      default: return;
745    }
746  
747    if (ConfigGeneral.cycle_on_host_change)
748 <    sendto_common_channels_local(target_p, 0, 0, ":%s!%s@%s QUIT :Changing hostname",
748 >    sendto_common_channels_local(target_p, 0, 0, CAP_CHGHOST, ":%s!%s@%s QUIT :Changing hostname",
749                                   target_p->name, target_p->username, target_p->host);
750  
751 <  if (IsUserHostIp(target_p))
752 <    delete_user_host(target_p->username, target_p->host, !MyConnect(target_p));
751 >  sendto_common_channels_local(target_p, 0, CAP_CHGHOST, 0, ":%s!%s@%s CHGHOST %s %s",
752 >                               target_p->name, target_p->username,
753 >                               target_p->host, target_p->username, hostname);
754 >
755 >  if (HasFlag(target_p, FLAGS_USERHOST))
756 >    userhost_del(target_p->username, target_p->host, !MyConnect(target_p));
757  
758    strlcpy(target_p->host, hostname, sizeof(target_p->host));
759  
760 <  add_user_host(target_p->username, target_p->host, !MyConnect(target_p));
761 <  SetUserHost(target_p);
760 >  userhost_add(target_p->username, target_p->host, !MyConnect(target_p));
761 >  AddFlag(target_p, FLAGS_USERHOST);
762  
763 <  if (MyClient(target_p))
763 >  if (MyConnect(target_p))
764    {
765      sendto_one_numeric(target_p, &me, RPL_VISIBLEHOST, target_p->host);
766      clear_ban_cache_client(target_p);
# Line 884 | Line 769 | user_set_hostmask(struct Client *target_
769    if (!ConfigGeneral.cycle_on_host_change)
770      return;
771  
772 <  DLINK_FOREACH(ptr, target_p->channel.head)
772 >  DLINK_FOREACH(node, target_p->channel.head)
773    {
774 <    char modebuf[4], nickbuf[NICKLEN * 3 + 3] = "";
774 >    char modebuf[CMEMBER_STATUS_FLAGS_LEN + 1];
775 >    char nickbuf[CMEMBER_STATUS_FLAGS_LEN * NICKLEN + CMEMBER_STATUS_FLAGS_LEN] = "";
776      char *p = modebuf;
777      int len = 0;
778 <    const struct Membership *ms = ptr->data;
778 >    const struct Membership *member = node->data;
779  
780 <    if (has_member_flags(ms, CHFL_CHANOP))
780 >    if (has_member_flags(member, CHFL_CHANOP))
781      {
782        *p++ = 'o';
783        len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", target_p->name);
784      }
785  
786 <    if (has_member_flags(ms, CHFL_HALFOP))
786 >    if (has_member_flags(member, CHFL_HALFOP))
787      {
788        *p++ = 'h';
789        len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", target_p->name);
790      }
791  
792 <    if (has_member_flags(ms, CHFL_VOICE))
792 >    if (has_member_flags(member, CHFL_VOICE))
793      {
794        *p++ = 'v';
795        len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", target_p->name);
# Line 911 | Line 797 | user_set_hostmask(struct Client *target_
797  
798      *p = '\0';
799  
800 <    sendto_channel_local_butone(target_p, 0, 0, ms->chptr, ":%s!%s@%s JOIN :%s",
801 <                                target_p->name, target_p->username, target_p->host,
802 <                                ms->chptr->name);
803 <    if (nickbuf[0])
804 <      sendto_channel_local_butone(target_p, 0, 0, ms->chptr, ":%s MODE %s +%s %s",
805 <                                  target_p->servptr->name, ms->chptr->name,
806 <                                  modebuf, nickbuf);
800 >    sendto_channel_local(target_p, member->chptr, 0, CAP_EXTENDED_JOIN, CAP_CHGHOST, ":%s!%s@%s JOIN %s %s :%s",
801 >                         target_p->name, target_p->username,
802 >                         target_p->host, member->chptr->name,
803 >                         target_p->account, target_p->info);
804 >    sendto_channel_local(target_p, member->chptr, 0, 0, CAP_EXTENDED_JOIN | CAP_CHGHOST, ":%s!%s@%s JOIN :%s",
805 >                         target_p->name, target_p->username,
806 >                         target_p->host, member->chptr->name);
807  
808 +    if (nickbuf[0])
809 +      sendto_channel_local(target_p, member->chptr, 0, 0, CAP_CHGHOST, ":%s MODE %s +%s %s",
810 +                           target_p->servptr->name, member->chptr->name,
811 +                           modebuf, nickbuf);
812    }
813  
814    if (target_p->away[0])
815 <    sendto_common_channels_local(target_p, 0, CAP_AWAY_NOTIFY,
815 >    sendto_common_channels_local(target_p, 0, CAP_AWAY_NOTIFY, CAP_CHGHOST,
816                                   ":%s!%s@%s AWAY :%s",
817                                   target_p->name, target_p->username,
818                                   target_p->host, target_p->away);
819   }
930
931 /*! \brief Blindly opers up given source_p, using conf info.
932 *         All checks on passwords have already been done.
933 * \param source_p Pointer to given client to oper
934 */
935 void
936 oper_up(struct Client *source_p)
937 {
938  const unsigned int old = source_p->umodes;
939  const struct MaskItem *conf = source_p->connection->confs.head->data;
940
941  assert(source_p->connection->confs.head);
942
943  ++Count.oper;
944  SetOper(source_p);
945
946  if (conf->modes)
947    AddUMode(source_p, conf->modes);
948  else if (ConfigGeneral.oper_umodes)
949    AddUMode(source_p, ConfigGeneral.oper_umodes);
950
951  if (!(old & UMODE_INVISIBLE) && HasUMode(source_p, UMODE_INVISIBLE))
952    ++Count.invisi;
953  if ((old & UMODE_INVISIBLE) && !HasUMode(source_p, UMODE_INVISIBLE))
954    --Count.invisi;
955
956  assert(dlinkFind(&oper_list, source_p) == NULL);
957  dlinkAdd(source_p, make_dlink_node(), &oper_list);
958
959  AddOFlag(source_p, conf->port);
960
961  if (HasOFlag(source_p, OPER_FLAG_ADMIN))
962    AddUMode(source_p, UMODE_ADMIN);
963
964  sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, "%s is now an operator",
965                       get_oper_name(source_p));
966  sendto_server(NULL, NOCAPS, NOCAPS, ":%s GLOBOPS :%s is now an operator",
967                me.id, get_oper_name(source_p));
968  send_umode_out(source_p, source_p, old);
969  sendto_one_numeric(source_p, &me, RPL_YOUREOPER);
970 }
971
972 static char new_uid[TOTALSIDUID + 1];  /* Allow for \0 */
973
974 int
975 valid_sid(const char *sid)
976 {
977  if (strlen(sid) == IRC_MAXSID)
978    if (IsDigit(*sid))
979      if (IsAlNum(*(sid + 1)) && IsAlNum(*(sid + 2)))
980        return 1;
981
982  return 0;
983 }
984
985 /*
986 * init_uid()
987 *
988 * inputs       - NONE
989 * output       - NONE
990 * side effects - new_uid is filled in with server id portion (sid)
991 *                (first 3 bytes) or defaulted to 'A'.
992 *                Rest is filled in with 'A'
993 */
994 void
995 init_uid(void)
996 {
997  memset(new_uid, 0, sizeof(new_uid));
998
999  if (!EmptyString(ConfigServerInfo.sid))
1000    strlcpy(new_uid, ConfigServerInfo.sid, sizeof(new_uid));
1001
1002  for (unsigned int i = 0; i < IRC_MAXSID; ++i)
1003    if (new_uid[i] == '\0')
1004      new_uid[i] = 'A';
1005
1006  /* NOTE: if IRC_MAXUID != 6, this will have to be rewritten */
1007  memcpy(new_uid + IRC_MAXSID, "AAAAA@", IRC_MAXUID);
1008 }
1009
1010 /*
1011 * add_one_to_uid
1012 *
1013 * inputs       - index number into new_uid
1014 * output       - NONE
1015 * side effects - new_uid is incremented by one
1016 *                note this is a recursive function
1017 */
1018 static void
1019 add_one_to_uid(unsigned int i)
1020 {
1021  if (i != IRC_MAXSID)  /* Not reached server SID portion yet? */
1022  {
1023    if (new_uid[i] == 'Z')
1024      new_uid[i] = '0';
1025    else if (new_uid[i] == '9')
1026    {
1027      new_uid[i] = 'A';
1028      add_one_to_uid(i - 1);
1029    }
1030    else
1031      ++new_uid[i];
1032  }
1033  else
1034  {
1035    /* NOTE: if IRC_MAXUID != 6, this will have to be rewritten */
1036    if (new_uid[i] == 'Z')
1037      memcpy(new_uid + IRC_MAXSID, "AAAAAA", IRC_MAXUID);
1038    else
1039      ++new_uid[i];
1040  }
1041 }
1042
1043 /*
1044 * uid_get
1045 *
1046 * inputs       - struct Client *
1047 * output       - new UID is returned to caller
1048 * side effects - new_uid is incremented by one.
1049 */
1050 static const char *
1051 uid_get(void)
1052 {
1053  add_one_to_uid(TOTALSIDUID - 1);  /* Index from 0 */
1054  return new_uid;
1055 }
1056
1057 /*
1058 * init_isupport()
1059 *
1060 * input        - NONE
1061 * output       - NONE
1062 * side effects - Must be called before isupport is enabled
1063 */
1064 void
1065 init_isupport(void)
1066 {
1067  add_isupport("CALLERID", NULL, -1);
1068  add_isupport("CASEMAPPING", "rfc1459", -1);
1069  add_isupport("DEAF", "D", -1);
1070  add_isupport("KICKLEN", NULL, KICKLEN);
1071  add_isupport("MODES", NULL, MAXMODEPARAMS);
1072  add_isupport("PREFIX", "(ohv)@%+", -1);
1073  add_isupport("STATUSMSG", "@%+", -1);
1074  add_isupport("EXCEPTS", "e", -1);
1075  add_isupport("INVEX", "I", -1);
1076 }
1077
1078 /*
1079 * add_isupport()
1080 *
1081 * input        - name of supported function
1082 *              - options if any
1083 *              - number if any
1084 * output       - NONE
1085 * side effects - Each supported item must call this when activated
1086 */
1087 void
1088 add_isupport(const char *name, const char *options, int n)
1089 {
1090  dlink_node *ptr;
1091  struct Isupport *support = NULL;
1092
1093  DLINK_FOREACH(ptr, support_list.head)
1094  {
1095    support = ptr->data;
1096    if (irccmp(support->name, name) == 0)
1097    {
1098      MyFree(support->name);
1099      MyFree(support->options);
1100      break;
1101    }
1102  }
1103
1104  if (ptr == NULL)
1105  {
1106    support = MyCalloc(sizeof(*support));
1107    dlinkAddTail(support, &support->node, &support_list);
1108  }
1109
1110  support->name = xstrdup(name);
1111  if (options)
1112    support->options = xstrdup(options);
1113  support->number = n;
1114
1115  rebuild_isupport_message_line();
1116 }
1117
1118 /*
1119 * delete_isupport()
1120 *
1121 * input        - name of supported function
1122 * output       - NONE
1123 * side effects - Each supported item must call this when deactivated
1124 */
1125 void
1126 delete_isupport(const char *name)
1127 {
1128  dlink_node *ptr;
1129  struct Isupport *support;
1130
1131  DLINK_FOREACH(ptr, support_list.head)
1132  {
1133    support = ptr->data;
1134    if (irccmp(support->name, name) == 0)
1135    {
1136      dlinkDelete(ptr, &support_list);
1137      MyFree(support->name);
1138      MyFree(support->options);
1139      MyFree(support);
1140      break;
1141    }
1142  }
1143
1144  rebuild_isupport_message_line();
1145 }
1146
1147 /*
1148 * rebuild_isupport_message_line
1149 *
1150 * input        - NONE
1151 * output       - NONE
1152 * side effects - Destroy the isupport MessageFile lines, and rebuild.
1153 */
1154 void
1155 rebuild_isupport_message_line(void)
1156 {
1157  char isupportbuffer[IRCD_BUFSIZE];
1158  char *p = isupportbuffer;
1159  dlink_node *ptr = NULL, *ptr_next = NULL;
1160  int n = 0;
1161  int tokens = 0;
1162  size_t len = 0;
1163  size_t reserve = strlen(me.name) + HOSTLEN + strlen(numeric_form(RPL_ISUPPORT));
1164
1165  DLINK_FOREACH_SAFE(ptr, ptr_next, support_list_lines.head)
1166  {
1167    dlinkDelete(ptr, &support_list_lines);
1168    MyFree(ptr->data);
1169    free_dlink_node(ptr);
1170  }
1171
1172  DLINK_FOREACH(ptr, support_list.head)
1173  {
1174    struct Isupport *support = ptr->data;
1175
1176    p += (n = sprintf(p, "%s", support->name));
1177    len += n;
1178
1179    if (support->options)
1180    {
1181      p += (n = sprintf(p, "=%s", support->options));
1182      len += n;
1183    }
1184
1185    if (support->number > 0)
1186    {
1187      p += (n = sprintf(p, "=%d", support->number));
1188      len += n;
1189    }
1190
1191    *p++ = ' ';
1192    len++;
1193    *p = '\0';
1194
1195    if (++tokens == (MAXPARA-2) || len >= (sizeof(isupportbuffer)-reserve))
1196    { /* arbritrary for now */
1197      if (*--p == ' ')
1198        *p = '\0';
1199
1200      dlinkAddTail(xstrdup(isupportbuffer), make_dlink_node(), &support_list_lines);
1201      p = isupportbuffer;
1202      len = 0;
1203      n = tokens = 0;
1204    }
1205  }
1206
1207  if (len)
1208  {
1209    if (*--p == ' ')
1210      *p = '\0';
1211    dlinkAddTail(xstrdup(isupportbuffer), make_dlink_node(), &support_list_lines);
1212  }
1213 }

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