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root/svn/ircd-hybrid/trunk/src/user.c
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Comparing:
ircd-hybrid/trunk/src/s_user.c (file contents), Revision 1818 by michael, Fri Apr 12 11:02:33 2013 UTC vs.
ircd-hybrid/trunk/src/user.c (file contents), Revision 6732 by michael, Wed Nov 4 21:56:03 2015 UTC

# Line 1 | Line 1
1   /*
2 < *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3 < *  s_user.c: User related functions.
2 > *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3   *
4 < *  Copyright (C) 2002 by the past and present ircd coders, and others.
4 > *  Copyright (c) 1997-2015 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 16 | Line 15
15   *
16   *  You should have received a copy of the GNU General Public License
17   *  along with this program; if not, write to the Free Software
18 < *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
18 > *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
19   *  USA
20 < *
21 < *  $Id$
20 > */
21 >
22 > /*! \file user.c
23 > * \brief User related functions.
24 > * \version $Id$
25   */
26  
27   #include "stdinc.h"
28   #include "list.h"
29 < #include "s_user.h"
28 < #include "s_misc.h"
29 > #include "user.h"
30   #include "channel.h"
31   #include "channel_mode.h"
32   #include "client.h"
32 #include "fdlist.h"
33   #include "hash.h"
34 + #include "id.h"
35   #include "irc_string.h"
35 #include "s_bsd.h"
36   #include "ircd.h"
37   #include "listener.h"
38   #include "motd.h"
39   #include "numeric.h"
40   #include "conf.h"
41   #include "log.h"
42 < #include "s_serv.h"
42 > #include "server.h"
43   #include "send.h"
44 #include "supported.h"
45 #include "whowas.h"
44   #include "memory.h"
45   #include "packet.h"
46   #include "rng_mt.h"
47   #include "userhost.h"
48 < #include "hook.h"
51 < #include "s_misc.h"
48 > #include "misc.h"
49   #include "parse.h"
50   #include "watch.h"
51 <
55 <
56 < struct Callback *entering_umode_cb = NULL;
57 < struct Callback *umode_cb = NULL;
51 > #include "isupport.h"
52  
53   static char umode_buffer[IRCD_BUFSIZE];
54  
55 < static void user_welcome(struct Client *);
56 < static void report_and_set_user_flags(struct Client *, const struct MaskItem *);
63 < static int check_xline(struct Client *);
64 < static void introduce_client(struct Client *);
65 < static const char *uid_get(void);
66 <
67 < /* Used for building up the isupport string,
68 < * used with init_isupport, add_isupport, delete_isupport
69 < */
70 <
71 < struct Isupport
55 > const struct user_modes *umode_map[256];
56 > const struct user_modes  umode_tab[] =
57   {
58 <  dlink_node node;
59 <  char *name;
60 <  char *options;
61 <  int number;
62 < };
63 <
64 < static dlink_list support_list = { NULL, NULL, 0 };
65 < MessageFile *isupportFile;
66 <
67 < /* memory is cheap. map 0-255 to equivalent mode */
68 < unsigned int user_modes[256] =
69 < {
70 <  /* 0x00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x0F */
71 <  /* 0x10 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x1F */
72 <  /* 0x20 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x2F */
73 <  /* 0x30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x3F */
74 <  0,                  /* @ */
75 <  0,                  /* A */
76 <  0,                  /* B */
77 <  UMODE_CCONN_FULL,   /* C */
78 <  UMODE_DEAF,         /* D */
79 <  0,                  /* E */
80 <  0,                  /* F */
81 <  UMODE_SOFTCALLERID, /* G */
82 <  UMODE_HIDDEN,       /* H */
83 <  0,                  /* I */
84 <  0,                  /* J */
85 <  0,                  /* K */
86 <  0,                  /* L */
102 <  0,                  /* M */
103 <  0,                  /* N */
104 <  0,                  /* O */
105 <  0,                  /* P */
106 <  0,                  /* Q */
107 <  UMODE_REGONLY,      /* R */
108 <  0,                  /* S */
109 <  0,                  /* T */
110 <  0,                  /* U */
111 <  0,                  /* V */
112 <  0,                  /* W */
113 <  0,                  /* X */
114 <  0,                  /* Y */
115 <  0,                  /* Z 0x5A */
116 <  0, 0, 0, 0, 0,      /* 0x5F   */
117 <  0,                  /* 0x60   */
118 <  UMODE_ADMIN,        /* a */
119 <  UMODE_BOTS,         /* b */
120 <  UMODE_CCONN,        /* c */
121 <  UMODE_DEBUG,        /* d */
122 <  UMODE_EXTERNAL,     /* e */
123 <  UMODE_FULL,         /* f */
124 <  UMODE_CALLERID,     /* g */
125 <  0,                  /* h */
126 <  UMODE_INVISIBLE,    /* i */
127 <  UMODE_REJ,          /* j */
128 <  UMODE_SKILL,        /* k */
129 <  UMODE_LOCOPS,       /* l */
130 <  0,                  /* m */
131 <  UMODE_NCHANGE,      /* n */
132 <  UMODE_OPER,         /* o */
133 <  0,                  /* p */
134 <  0,                  /* q */
135 <  UMODE_REGISTERED,   /* r */
136 <  UMODE_SERVNOTICE,   /* s */
137 <  0,                  /* t */
138 <  UMODE_UNAUTH,       /* u */
139 <  0,                  /* v */
140 <  UMODE_WALLOP,       /* w */
141 <  0,                  /* x */
142 <  UMODE_SPY,          /* y */
143 <  UMODE_OPERWALL,     /* z      0x7A */
144 <  0,0,0,0,0,          /* 0x7B - 0x7F */
145 <
146 <  /* 0x80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x8F */
147 <  /* 0x90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x9F */
148 <  /* 0xA0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xAF */
149 <  /* 0xB0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xBF */
150 <  /* 0xC0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xCF */
151 <  /* 0xD0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xDF */
152 <  /* 0xE0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xEF */
153 <  /* 0xF0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0  /* 0xFF */
58 >  { 'D', UMODE_DEAF         },
59 >  { 'F', UMODE_FARCONNECT   },
60 >  { 'G', UMODE_SOFTCALLERID },
61 >  { 'H', UMODE_HIDDEN       },
62 >  { 'R', UMODE_REGONLY      },
63 >  { 'S', UMODE_SSL          },
64 >  { 'W', UMODE_WEBIRC       },
65 >  { 'a', UMODE_ADMIN        },
66 >  { 'b', UMODE_BOTS         },
67 >  { 'c', UMODE_CCONN        },
68 >  { 'd', UMODE_DEBUG        },
69 >  { 'e', UMODE_EXTERNAL     },
70 >  { 'f', UMODE_FULL         },
71 >  { 'g', UMODE_CALLERID     },
72 >  { 'i', UMODE_INVISIBLE    },
73 >  { 'j', UMODE_REJ          },
74 >  { 'k', UMODE_SKILL        },
75 >  { 'l', UMODE_LOCOPS       },
76 >  { 'n', UMODE_NCHANGE      },
77 >  { 'o', UMODE_OPER         },
78 >  { 'p', UMODE_HIDECHANS    },
79 >  { 'q', UMODE_HIDEIDLE     },
80 >  { 'r', UMODE_REGISTERED   },
81 >  { 's', UMODE_SERVNOTICE   },
82 >  { 'u', UMODE_UNAUTH       },
83 >  { 'w', UMODE_WALLOP       },
84 >  { 'x', UMODE_HIDDENHOST   },
85 >  { 'y', UMODE_SPY          },
86 >  { '\0', 0 }
87   };
88  
89   void
90 < assemble_umode_buffer(void)
90 > user_modes_init(void)
91   {
159  unsigned int idx = 0;
92    char *umode_buffer_ptr = umode_buffer;
93  
94 <  for (; idx < (sizeof(user_modes) / sizeof(user_modes[0])); ++idx)
95 <    if (user_modes[idx])
96 <      *umode_buffer_ptr++ = idx;
94 >  for (const struct user_modes *tab = umode_tab; tab->c; ++tab)
95 >  {
96 >    umode_map[tab->c] = tab;
97 >    *umode_buffer_ptr++ = tab->c;
98 >  }
99  
100    *umode_buffer_ptr = '\0';
101   }
# Line 173 | Line 107 | assemble_umode_buffer(void)
107   * side effects - display to client user counts etc.
108   */
109   void
110 < show_lusers(struct Client *source_p)
110 > show_lusers(struct Client *source_p)
111   {
112 <  const char *from, *to;
112 >  if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER))
113 >    sendto_one_numeric(source_p, &me, RPL_LUSERCLIENT, (Count.total - Count.invisi),
114 >                       Count.invisi, dlink_list_length(&global_server_list));
115 >  else
116 >    sendto_one_numeric(source_p, &me, RPL_LUSERCLIENT, (Count.total - Count.invisi),
117 >                       Count.invisi, 1);
118 >
119 >  if (Count.oper)
120 >    sendto_one_numeric(source_p, &me, RPL_LUSEROP, Count.oper);
121 >
122 >  if (dlink_list_length(&unknown_list))
123 >    sendto_one_numeric(source_p, &me, RPL_LUSERUNKNOWN, dlink_list_length(&unknown_list));
124  
125 <  if (!MyConnect(source_p) && IsCapable(source_p->from, CAP_TS6) && HasID(source_p))
125 >  if (dlink_list_length(&channel_list))
126 >    sendto_one_numeric(source_p, &me, RPL_LUSERCHANNELS, dlink_list_length(&channel_list));
127 >
128 >  if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER))
129    {
130 <    from = me.id;
131 <    to = source_p->id;
130 >    sendto_one_numeric(source_p, &me, RPL_LUSERME, Count.local, Count.myserver);
131 >    sendto_one_numeric(source_p, &me, RPL_LOCALUSERS, Count.local, Count.max_loc);
132    }
133    else
134    {
135 <    from = me.name;
136 <    to = source_p->name;
135 >    sendto_one_numeric(source_p, &me, RPL_LUSERME, Count.total, 0);
136 >    sendto_one_numeric(source_p, &me, RPL_LOCALUSERS, Count.total, Count.max_tot);
137    }
138  
139 +  sendto_one_numeric(source_p, &me, RPL_GLOBALUSERS, Count.total, Count.max_tot);
140 +
141    if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER))
142 <    sendto_one(source_p, form_str(RPL_LUSERCLIENT),
143 <               from, to, (Count.total-Count.invisi),
194 <               Count.invisi, dlink_list_length(&global_serv_list));
195 <  else
196 <    sendto_one(source_p, form_str(RPL_LUSERCLIENT), from, to,
197 <               (Count.total-Count.invisi), Count.invisi, 1);
142 >    sendto_one_numeric(source_p, &me, RPL_STATSCONN, Count.max_loc_con,
143 >                       Count.max_loc_cli, Count.totalrestartcount);
144  
145 <  if (Count.oper > 0)
146 <    sendto_one(source_p, form_str(RPL_LUSEROP),
201 <               from, to, Count.oper);
202 <
203 <  if (dlink_list_length(&unknown_list) > 0)
204 <    sendto_one(source_p, form_str(RPL_LUSERUNKNOWN),
205 <               from, to, dlink_list_length(&unknown_list));
206 <
207 <  if (dlink_list_length(&global_channel_list) > 0)
208 <    sendto_one(source_p, form_str(RPL_LUSERCHANNELS),
209 <               from, to, dlink_list_length(&global_channel_list));
145 >  if (Count.local > Count.max_loc_cli)
146 >    Count.max_loc_cli = Count.local;
147  
148 <  if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER))
148 >  if ((Count.local + Count.myserver) > Count.max_loc_con)
149 >    Count.max_loc_con = Count.local + Count.myserver;
150 > }
151 >
152 > /* report_and_set_user_flags()
153 > *
154 > * inputs       - pointer to source_p
155 > *              - pointer to conf for this user
156 > * output       - NONE
157 > * side effects - Report to user any special flags
158 > *                they are getting, and set them.
159 > */
160 > static void
161 > report_and_set_user_flags(struct Client *source_p, const struct MaskItem *conf)
162 > {
163 >  /* If this user is being spoofed, tell them so */
164 >  if (IsConfDoSpoofIp(conf))
165 >    sendto_one_notice(source_p, &me, ":*** Spoofing your IP. Congrats.");
166 >
167 >  /* If this user is in the exception class, set it "E lined" */
168 >  if (IsConfExemptKline(conf))
169 >  {
170 >    AddFlag(source_p, FLAGS_EXEMPTKLINE);
171 >    sendto_one_notice(source_p, &me, ":*** You are exempt from K/D lines. Congrats.");
172 >  }
173 >
174 >  if (IsConfExemptXline(conf))
175 >  {
176 >    AddFlag(source_p, FLAGS_EXEMPTXLINE);
177 >    sendto_one_notice(source_p, &me, ":*** You are exempt from X lines. Congrats.");
178 >  }
179 >
180 >  if (IsConfExemptResv(conf))
181 >  {
182 >    AddFlag(source_p, FLAGS_EXEMPTRESV);
183 >    sendto_one_notice(source_p, &me, ":*** You are exempt from resvs. Congrats.");
184 >  }
185 >
186 >  /* If this user is exempt from user limits set it "F lined" */
187 >  if (IsConfExemptLimits(conf))
188 >  {
189 >    AddFlag(source_p, FLAGS_NOLIMIT);
190 >    sendto_one_notice(source_p, &me, ":*** You are exempt from user limits. Congrats.");
191 >  }
192 >
193 >  if (IsConfCanFlood(conf))
194    {
195 <    sendto_one(source_p, form_str(RPL_LUSERME),
196 <               from, to, Count.local, Count.myserver);
197 <    sendto_one(source_p, form_str(RPL_LOCALUSERS),
216 <               from, to, Count.local, Count.max_loc,
217 <               Count.local, Count.max_loc);
195 >    AddFlag(source_p, FLAGS_CANFLOOD);
196 >    sendto_one_notice(source_p, &me, ":*** You are exempt from flood "
197 >                      "protection, aren't you fearsome.");
198    }
199 + }
200 +
201 + /* introduce_client()
202 + *
203 + * inputs       - source_p
204 + * output       - NONE
205 + * side effects - This common function introduces a client to the rest
206 + *                of the net, either from a local client connect or
207 + *                from a remote connect.
208 + */
209 + static void
210 + introduce_client(struct Client *source_p)
211 + {
212 +  dlink_node *node = NULL;
213 +  char ubuf[IRCD_BUFSIZE] = "";
214 +
215 +  if (MyClient(source_p))
216 +    send_umode(source_p, source_p, 0, ubuf);
217    else
218 +    send_umode(NULL, source_p, 0, ubuf);
219 +
220 +  watch_check_hash(source_p, RPL_LOGON);
221 +
222 +  if (ubuf[0] == '\0')
223    {
224 <    sendto_one(source_p, form_str(RPL_LUSERME),
225 <               from, to, Count.total, 0);
223 <    sendto_one(source_p, form_str(RPL_LOCALUSERS),
224 <               from, to, Count.total, Count.max_tot,
225 <               Count.total, Count.max_tot);
224 >    ubuf[0] = '+';
225 >    ubuf[1] = '\0';
226    }
227  
228 <  sendto_one(source_p, form_str(RPL_GLOBALUSERS),
229 <             from, to, Count.total, Count.max_tot,
230 <             Count.total, Count.max_tot);
228 >  DLINK_FOREACH(node, local_server_list.head)
229 >  {
230 >    struct Client *server = node->data;
231  
232 <  if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER))
233 <    sendto_one(source_p, form_str(RPL_STATSCONN), from, to,
234 <               Count.max_loc_con, Count.max_loc_cli, Count.totalrestartcount);
232 >    if (server == source_p->from)
233 >      continue;
234  
235 <  if (Count.local > Count.max_loc_cli)
236 <    Count.max_loc_cli = Count.local;
235 >    if (IsCapable(server, CAPAB_SVS))
236 >      sendto_one(server, ":%s UID %s %u %lu %s %s %s %s %s %s :%s",
237 >                 source_p->servptr->id,
238 >                 source_p->name, source_p->hopcount+1,
239 >                 (unsigned long)source_p->tsinfo,
240 >                 ubuf, source_p->username, source_p->host,
241 >                 source_p->sockhost, source_p->id,
242 >                 source_p->account,
243 >                 source_p->info);
244 >    else
245 >      sendto_one(server, ":%s UID %s %u %lu %s %s %s %s %s :%s",
246 >                 source_p->servptr->id,
247 >                 source_p->name, source_p->hopcount+1,
248 >                 (unsigned long)source_p->tsinfo,
249 >                 ubuf, source_p->username, source_p->host,
250 >                 source_p->sockhost, source_p->id, source_p->info);
251  
252 <  if ((Count.local + Count.myserver) > Count.max_loc_con)
253 <    Count.max_loc_con = Count.local + Count.myserver;
252 >    if (!EmptyString(source_p->certfp))
253 >      sendto_one(server, ":%s CERTFP %s", source_p->id, source_p->certfp);
254 >  }
255   }
256  
257 < /* show_isupport()
257 > /* user_welcome()
258   *
259 < * inputs       - pointer to client
259 > * inputs       - client pointer to client to welcome
260   * output       - NONE
261 < * side effects - display to client what we support (for them)
261 > * side effects -
262   */
263 < void
264 < show_isupport(struct Client *source_p)
263 > static void
264 > user_welcome(struct Client *source_p)
265   {
266 <  send_message_file(source_p, isupportFile);
266 >  static const char built_date[] = __DATE__ " at " __TIME__;
267 >
268 > #ifdef HAVE_LIBCRYPTO
269 >  if (HasFlag(source_p, FLAGS_SSL))
270 >  {
271 >    AddUMode(source_p, UMODE_SSL);
272 >    sendto_one_notice(source_p, &me, ":*** Connected securely via %s",
273 >                      ssl_get_cipher(source_p->connection->fd.ssl));
274 >  }
275 > #endif
276 >
277 >  sendto_one_numeric(source_p, &me, RPL_WELCOME, ConfigServerInfo.network_name,
278 >                     source_p->name);
279 >  sendto_one_numeric(source_p, &me, RPL_YOURHOST,
280 >                     listener_get_name(source_p->connection->listener), ircd_version);
281 >  sendto_one_numeric(source_p, &me, RPL_CREATED, built_date);
282 >  sendto_one_numeric(source_p, &me, RPL_MYINFO, me.name, ircd_version, umode_buffer);
283 >
284 >  isupport_show(source_p);
285 >  show_lusers(source_p);
286 >  motd_signon(source_p);
287   }
288  
289 < /*
290 < ** register_local_user
291 < **      This function is called when both NICK and USER messages
292 < **      have been accepted for the client, in whatever order. Only
293 < **      after this, is the USER message propagated.
294 < **
295 < **      NICK's must be propagated at once when received, although
296 < **      it would be better to delay them too until full info is
297 < **      available. Doing it is not so simple though, would have
298 < **      to implement the following:
299 < **
300 < **      (actually it has been implemented already for a while) -orabidoo
301 < **
302 < **      1) user telnets in and gives only "NICK foobar" and waits
303 < **      2) another user far away logs in normally with the nick
304 < **         "foobar" (quite legal, as this server didn't propagate
305 < **         it).
306 < **      3) now this server gets nick "foobar" from outside, but
307 < **         has alread the same defined locally. Current server
308 < **         would just issue "KILL foobar" to clean out dups. But,
309 < **         this is not fair. It should actually request another
310 < **         nick from local user or kill him/her...
311 < */
289 > /* check_xline()
290 > *
291 > * inputs       - pointer to client to test
292 > * outupt       - 1 if exiting 0 if ok
293 > * side effects -
294 > */
295 > static int
296 > check_xline(struct Client *source_p)
297 > {
298 >  struct MaskItem *conf = NULL;
299 >
300 >  if (HasFlag(source_p, FLAGS_EXEMPTXLINE))
301 >    return 0;
302 >
303 >  if ((conf = find_matching_name_conf(CONF_XLINE, source_p->info, NULL, NULL, 0)))
304 >  {
305 >    ++conf->count;
306 >    sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE,
307 >                         "X-line Rejecting [%s] [%s], user %s [%s]",
308 >                         source_p->info, conf->reason,
309 >                         get_client_name(source_p, HIDE_IP),
310 >                         source_p->sockhost);
311 >
312 >    ++ServerStats.is_ref;
313 >    exit_client(source_p, "Bad user info");
314 >    return 1;
315 >  }
316 >
317 >  return 0;
318 > }
319 >
320 > /*! \brief This function is called when both NICK and USER messages
321 > *      have been accepted for the client, in whatever order. Only
322 > *      after this, is the UID message propagated.
323 > * \param source_p Pointer to given client to introduce
324 > */
325   void
326   register_local_user(struct Client *source_p)
327   {
328    const char *id = NULL;
329    const struct MaskItem *conf = NULL;
330  
284  assert(source_p != NULL);
331    assert(source_p == source_p->from);
332    assert(MyConnect(source_p));
333 <  assert(!source_p->localClient->registration);
334 <
289 <  ClearCap(source_p, CAP_TS6);
333 >  assert(IsUnknown(source_p));
334 >  assert(!source_p->connection->registration);
335  
336 <  if (ConfigFileEntry.ping_cookie)
336 >  if (ConfigGeneral.ping_cookie)
337    {
338 <    if (!IsPingSent(source_p) && source_p->localClient->random_ping == 0)
338 >    if (!HasFlag(source_p, FLAGS_PINGSENT) && !source_p->connection->random_ping)
339      {
340        do
341 <        source_p->localClient->random_ping = genrand_int32();
342 <      while (!source_p->localClient->random_ping);
341 >        source_p->connection->random_ping = genrand_int32();
342 >      while (!source_p->connection->random_ping);
343  
344 <      sendto_one(source_p, "PING :%u",
345 <                 source_p->localClient->random_ping);
301 <      SetPingSent(source_p);
344 >      sendto_one(source_p, "PING :%u", source_p->connection->random_ping);
345 >      AddFlag(source_p, FLAGS_PINGSENT);
346        return;
347      }
348  
349 <    if (!HasPingCookie(source_p))
349 >    if (!HasFlag(source_p, FLAGS_PING_COOKIE))
350        return;
351    }
352  
353 <  source_p->localClient->last_privmsg = CurrentTime;
353 >  source_p->connection->last_privmsg = CurrentTime;
354    /* Straight up the maximum rate of flooding... */
355 <  source_p->localClient->allow_read = MAX_FLOOD_BURST;
355 >  source_p->connection->allow_read = MAX_FLOOD_BURST;
356  
357    if (!check_client(source_p))
358      return;
359  
360 <  if (valid_hostname(source_p->host) == 0)
360 >  if (!valid_hostname(source_p->host))
361    {
362 <    sendto_one(source_p, ":%s NOTICE %s :*** Notice -- You have an illegal "
363 <               "character in your hostname", me.name, source_p->name);
364 <    strlcpy(source_p->host, source_p->sockhost,
321 <            sizeof(source_p->host));
362 >    sendto_one_notice(source_p, &me, ":*** Notice -- You have an illegal "
363 >                      "character in your hostname");
364 >    strlcpy(source_p->host, source_p->sockhost, sizeof(source_p->host));
365    }
366  
367 <  conf = source_p->localClient->confs.head->data;
367 >  conf = source_p->connection->confs.head->data;
368  
369 <  if (!IsGotId(source_p))
369 >  if (!HasFlag(source_p, FLAGS_GOTID))
370    {
371 <    char username[USERLEN + 1];
329 <    const char *p = username;
371 >    char username[USERLEN + 1] = "";
372      unsigned int i = 0;
373  
374      if (IsNeedIdentd(conf))
375      {
376        ++ServerStats.is_ref;
377 <      sendto_one(source_p, ":%s NOTICE %s :*** Notice -- You need to install "
378 <                 "identd to use this server", me.name, source_p->name);
379 <      exit_client(source_p, &me, "Install identd");
377 >      sendto_one_notice(source_p, &me, ":*** Notice -- You need to install "
378 >                        "identd to use this server");
379 >      exit_client(source_p, "Install identd");
380        return;
381      }
382  
# Line 343 | Line 385 | register_local_user(struct Client *sourc
385      if (!IsNoTilde(conf))
386        source_p->username[i++] = '~';
387  
388 <    for (; *p && i < USERLEN; ++p)
389 <      if (*p != '[')
348 <        source_p->username[i++] = *p;
388 >    for (const char *p = username; *p && i < USERLEN; ++p)
389 >      source_p->username[i++] = *p;
390  
391      source_p->username[i] = '\0';
392    }
393  
394 <  /* password check */
394 >  /* Password check */
395    if (!EmptyString(conf->passwd))
396    {
397 <    const char *pass = source_p->localClient->passwd;
357 <
358 <    if (!match_conf_password(pass, conf))
397 >    if (!match_conf_password(source_p->connection->password, conf))
398      {
399        ++ServerStats.is_ref;
400 <      sendto_one(source_p, form_str(ERR_PASSWDMISMATCH),
401 <                 me.name, source_p->name);
402 <      exit_client(source_p, &me, "Bad Password");
400 >
401 >      sendto_one_numeric(source_p, &me, ERR_PASSWDMISMATCH);
402 >      exit_client(source_p, "Bad Password");
403        return;
404      }
405    }
406  
407 <  /* don't free source_p->localClient->passwd here - it can be required
408 <   * by masked /stats I if there are auth{} blocks with need_password = no;
407 >  /*
408 >   * Don't free source_p->connection->password here - it can be required
409 >   * by masked /stats I if there are auth {} blocks with need_password = no;
410     * --adx
411     */
412  
413 <  /* report if user has &^>= etc. and set flags as needed in source_p */
413 >  /*
414 >   * Report if user has &^>= etc. and set flags as needed in source_p
415 >   */
416    report_and_set_user_flags(source_p, conf);
417  
418    if (IsDead(source_p))
419      return;
420  
421 <  /* Limit clients -
421 >  /*
422 >   * Limit clients -
423     * We want to be able to have servers and F-line clients
424     * connect, so save room for "buffer" connections.
425     * Smaller servers may want to decrease this, and it should
426     * probably be just a percentage of the MAXCLIENTS...
427     *   -Taner
428     */
429 <  /* Except "F:" clients */
430 <  if ((Count.local >= ServerInfo.max_clients + MAX_BUFFER) ||
388 <      (Count.local >= ServerInfo.max_clients && !IsExemptLimits(source_p)))
429 >  if ((Count.local >= GlobalSetOptions.maxclients + MAX_BUFFER) ||
430 >      (Count.local >= GlobalSetOptions.maxclients && !HasFlag(source_p, FLAGS_NOLIMIT)))
431    {
432      sendto_realops_flags(UMODE_FULL, L_ALL, SEND_NOTICE,
433                           "Too many clients, rejecting %s[%s].",
434                           source_p->name, source_p->host);
435      ++ServerStats.is_ref;
436 <    exit_client(source_p, &me, "Sorry, server is full - try later");
436 >    exit_client(source_p, "Sorry, server is full - try later");
437      return;
438    }
439  
440 <  /* valid user name check */
399 <  if (valid_username(source_p->username) == 0)
440 >  if (!valid_username(source_p->username, 1))
441    {
442 <    char tmpstr2[IRCD_BUFSIZE];
442 >    char buf[IRCD_BUFSIZE] = "";
443  
444      sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE,
445                           "Invalid username: %s (%s@%s)",
446                           source_p->name, source_p->username, source_p->host);
447      ++ServerStats.is_ref;
448 <    snprintf(tmpstr2, sizeof(tmpstr2), "Invalid username [%s]",
449 <             source_p->username);
409 <    exit_client(source_p, &me, tmpstr2);
448 >    snprintf(buf, sizeof(buf), "Invalid username [%s]", source_p->username);
449 >    exit_client(source_p, buf);
450      return;
451    }
452  
453    if (check_xline(source_p))
454      return;
455  
456 <  while (hash_find_id((id = uid_get())) != NULL)
456 >  while (hash_find_id((id = uid_get())))
457      ;
458  
459    strlcpy(source_p->id, id, sizeof(source_p->id));
# Line 422 | Line 462 | register_local_user(struct Client *sourc
462    sendto_realops_flags(UMODE_CCONN, L_ALL, SEND_NOTICE,
463                         "Client connecting: %s (%s@%s) [%s] {%s} [%s] <%s>",
464                         source_p->name, source_p->username, source_p->host,
465 <                       ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ?
466 <                       "255.255.255.255" : source_p->sockhost,
427 <                       get_client_class(&source_p->localClient->confs),
465 >                       source_p->sockhost,
466 >                       get_client_class(&source_p->connection->confs),
467                         source_p->info, source_p->id);
468  
469 <  sendto_realops_flags(UMODE_CCONN_FULL, L_ALL, SEND_NOTICE,
431 <                       "CLICONN %s %s %s %s %s %s %s 0 %s",
432 <                       source_p->name, source_p->username, source_p->host,
433 <                       ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ?
434 <                       "255.255.255.255" : source_p->sockhost,
435 <                       get_client_class(&source_p->localClient->confs),
436 <                       ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ?
437 <                           "<hidden>" : source_p->localClient->client_host,
438 <                       ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ?
439 <                           "<hidden>" : source_p->localClient->client_server,
440 <                       source_p->info);
441 <
442 <
443 <  if (ConfigFileEntry.invisible_on_connect)
469 >  if (ConfigGeneral.invisible_on_connect)
470    {
471      AddUMode(source_p, UMODE_INVISIBLE);
472      ++Count.invisi;
473    }
474  
475 <  if ((++Count.local) > Count.max_loc)
475 >  if (++Count.local > Count.max_loc)
476    {
477      Count.max_loc = Count.local;
478  
479      if (!(Count.max_loc % 10))
480 <      sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
481 <                           "New Max Local Clients: %d",
480 >      sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE,
481 >                           "New maximum local client connections: %u",
482                             Count.max_loc);
483    }
484  
459  /* Increment our total user count here */
485    if (++Count.total > Count.max_tot)
486      Count.max_tot = Count.total;
487    ++Count.totalrestartcount;
# Line 464 | Line 489 | register_local_user(struct Client *sourc
489    assert(source_p->servptr == &me);
490    SetClient(source_p);
491    dlinkAdd(source_p, &source_p->lnode, &source_p->servptr->serv->client_list);
492 <
468 <  source_p->localClient->allow_read = MAX_FLOOD_BURST;
492 >  dlinkAdd(source_p, &source_p->node, &global_client_list);
493  
494    assert(dlinkFind(&unknown_list, source_p));
495  
496 <  dlink_move_node(&source_p->localClient->lclient_node,
496 >  dlink_move_node(&source_p->connection->lclient_node,
497                    &unknown_list, &local_client_list);
498  
499    user_welcome(source_p);
500 <  add_user_host(source_p->username, source_p->host, 0);
501 <  SetUserHost(source_p);
500 >  userhost_add(source_p->username, source_p->host, 0);
501 >  AddFlag(source_p, FLAGS_USERHOST);
502  
503    introduce_client(source_p);
504   }
# Line 485 | Line 509 | register_local_user(struct Client *sourc
509   *              - username to register as
510   *              - host name to register as
511   *              - server name
488 *              - realname (gecos)
512   * output       - NONE
513   * side effects - This function is called when a remote client
514   *                is introduced by a server.
515   */
516   void
517 < register_remote_user(struct Client *source_p,
495 <                     const char *username, const char *host, const char *server,
496 <                     const char *realname)
517 > register_remote_user(struct Client *source_p)
518   {
519 <  struct Client *target_p = NULL;
499 <
500 <  assert(source_p != NULL);
501 <  assert(source_p->username != username);
502 <
503 <  strlcpy(source_p->host, host, sizeof(source_p->host));
504 <  strlcpy(source_p->username, username, sizeof(source_p->username));
505 <
506 <  /*
507 <   * coming from another server, take the servers word for it
508 <   */
509 <  source_p->servptr = hash_find_server(server);
510 <
511 <  /*
512 <   * Super GhostDetect:
513 <   * If we can't find the server the user is supposed to be on,
514 <   * then simply blow the user away.        -Taner
515 <   */
516 <  if (source_p->servptr == NULL)
517 <  {
518 <    sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
519 <                         "No server %s for user %s[%s@%s] from %s",
520 <                         server, source_p->name, source_p->username,
521 <                         source_p->host, source_p->from->name);
522 <    kill_client(source_p->from, source_p, "%s (Server doesn't exist)", me.name);
523 <
524 <    AddFlag(source_p, FLAGS_KILLED);
525 <    exit_client(source_p, &me, "Ghosted Client");
526 <    return;
527 <  }
519 >  const struct Client *target_p = NULL;
520  
521    if ((target_p = source_p->servptr) && target_p->from != source_p->from)
522    {
# Line 533 | Line 525 | register_remote_user(struct Client *sour
525                           source_p->from->name, source_p->name, source_p->username,
526                           source_p->host, source_p->servptr->name,
527                           target_p->name, target_p->from->name);
528 <    kill_client(source_p->from, source_p,
529 <                "%s (NICK from wrong direction (%s != %s))",
530 <                me.name, source_p->servptr->name, target_p->from->name);
528 >    sendto_one(source_p->from,
529 >               ":%s KILL %s :%s (UID from wrong direction (%s != %s))",
530 >               me.id, source_p->id, me.name, source_p->servptr->name,
531 >               target_p->from->name);
532 >
533      AddFlag(source_p, FLAGS_KILLED);
534 <    exit_client(source_p, &me, "USER server wrong direction");
534 >    exit_client(source_p, "UID server wrong direction");
535      return;
536    }
537  
# Line 548 | Line 542 | register_remote_user(struct Client *sour
542    if (HasFlag(source_p->servptr, FLAGS_SERVICE))
543      AddFlag(source_p, FLAGS_SERVICE);
544  
551  /* Increment our total user count here */
545    if (++Count.total > Count.max_tot)
546      Count.max_tot = Count.total;
547  
548    SetClient(source_p);
549    dlinkAdd(source_p, &source_p->lnode, &source_p->servptr->serv->client_list);
550 <  add_user_host(source_p->username, source_p->host, 1);
551 <  SetUserHost(source_p);
550 >  dlinkAdd(source_p, &source_p->node, &global_client_list);
551 >  userhost_add(source_p->username, source_p->host, 1);
552 >  AddFlag(source_p, FLAGS_USERHOST);
553 >
554 >  if (HasFlag(source_p->servptr, FLAGS_EOB))
555 >    sendto_realops_flags(UMODE_FARCONNECT, L_ALL, SEND_NOTICE,
556 >                         "Client connecting at %s: %s (%s@%s) [%s] [%s] <%s>",
557 >                         source_p->servptr->name,
558 >                         source_p->name, source_p->username, source_p->host,
559 >                         source_p->sockhost, source_p->info, source_p->id);
560  
561    introduce_client(source_p);
562   }
563  
563 /* introduce_client()
564 *
565 * inputs       - source_p
566 * output       - NONE
567 * side effects - This common function introduces a client to the rest
568 *                of the net, either from a local client connect or
569 *                from a remote connect.
570 */
571 static void
572 introduce_client(struct Client *source_p)
573 {
574  dlink_node *server_node = NULL;
575  static char ubuf[12];
576
577  if (MyClient(source_p))
578    send_umode(source_p, source_p, 0, SEND_UMODES, ubuf);
579  else
580    send_umode(NULL, source_p, 0, SEND_UMODES, ubuf);
581
582  watch_check_hash(source_p, RPL_LOGON);
583
584  if (*ubuf == '\0')
585  {
586    ubuf[0] = '+';
587    ubuf[1] = '\0';
588  }
589
590  DLINK_FOREACH(server_node, serv_list.head)
591  {
592    struct Client *server = server_node->data;
593
594    if (server == source_p->from)
595        continue;
596
597    if (IsCapable(server, CAP_SVS))
598    {
599      if (IsCapable(server, CAP_TS6) && HasID(source_p))
600        sendto_one(server, ":%s UID %s %d %lu %s %s %s %s %s %s :%s",
601                   source_p->servptr->id,
602                   source_p->name, source_p->hopcount+1,
603                   (unsigned long)source_p->tsinfo,
604                   ubuf, source_p->username, source_p->host,
605                   (MyClient(source_p) && IsIPSpoof(source_p)) ?
606                   "0" : source_p->sockhost, source_p->id,
607                   source_p->svid,
608                   source_p->info);
609      else
610        sendto_one(server, "NICK %s %d %lu %s %s %s %s %s :%s",
611                   source_p->name, source_p->hopcount+1,
612                   (unsigned long)source_p->tsinfo,
613                   ubuf, source_p->username, source_p->host,
614                   source_p->servptr->name, source_p->svid,
615                   source_p->info);
616
617    }
618    else
619    {
620      if (IsCapable(server, CAP_TS6) && HasID(source_p))
621        sendto_one(server, ":%s UID %s %d %lu %s %s %s %s %s :%s",
622                   source_p->servptr->id,
623                   source_p->name, source_p->hopcount+1,
624                   (unsigned long)source_p->tsinfo,
625                   ubuf, source_p->username, source_p->host,
626                   (MyClient(source_p) && IsIPSpoof(source_p)) ?
627                   "0" : source_p->sockhost, source_p->id, source_p->info);
628      else
629        sendto_one(server, "NICK %s %d %lu %s %s %s %s :%s",
630                   source_p->name, source_p->hopcount+1,
631                   (unsigned long)source_p->tsinfo,
632                   ubuf, source_p->username, source_p->host,
633                   source_p->servptr->name, source_p->info);
634    }
635  }
636 }
637
564   /* valid_hostname()
565   *
566   * Inputs       - pointer to hostname
# Line 649 | Line 575 | valid_hostname(const char *hostname)
575   {
576    const char *p = hostname;
577  
578 <  assert(p != NULL);
578 >  assert(p);
579  
580 <  if (*p == '.' || *p == ':')
580 >  if (EmptyString(p) || *p == '.' || *p == ':')
581      return 0;
582  
583    for (; *p; ++p)
# Line 673 | Line 599 | valid_hostname(const char *hostname)
599   * style of username
600   */
601   int
602 < valid_username(const char *username)
602 > valid_username(const char *username, const int local)
603   {
604 <  int dots      = 0;
604 >  unsigned int dots = 0;
605    const char *p = username;
606  
607 <  assert(p != NULL);
607 >  assert(p);
608  
609    if (*p == '~')
610      ++p;
611  
612 <  /* reject usernames that don't start with an alphanum
612 >  /*
613 >   * Reject usernames that don't start with an alphanum
614     * i.e. reject jokers who have '-@somehost' or '.@somehost'
615     * or "-hi-@somehost", "h-----@somehost" would still be accepted.
616     */
617    if (!IsAlNum(*p))
618      return 0;
619  
620 <  while (*++p)
620 >  if (local)
621    {
622 <    if ((*p == '.') && ConfigFileEntry.dots_in_ident)
622 >    while (*++p)
623      {
624 <      if (++dots > ConfigFileEntry.dots_in_ident)
625 <        return 0;
626 <      if (!IsUserChar(*(p + 1)))
624 >      if (*p == '.' && ConfigGeneral.dots_in_ident)
625 >      {
626 >        if (++dots > ConfigGeneral.dots_in_ident)
627 >          return 0;
628 >        if (!IsUserChar(*(p + 1)))
629 >          return 0;
630 >      }
631 >      else if (!IsUserChar(*p))
632          return 0;
633      }
634 <    else if (!IsUserChar(*p))
635 <      return 0;
634 >  }
635 >  else
636 >  {
637 >    while (*++p)
638 >      if (!IsUserChar(*p))
639 >        return 0;
640    }
641  
642 <  return 1;
642 >  return p - username <= USERLEN;
643   }
644  
645   /* clean_nick_name()
# Line 717 | Line 653 | int
653   valid_nickname(const char *nickname, const int local)
654   {
655    const char *p = nickname;
720  assert(nickname && *nickname);
656  
657 <  /* nicks can't start with a digit or - or be 0 length */
658 <  /* This closer duplicates behaviour of hybrid-6 */
659 <  if (*p == '-' || (IsDigit(*p) && local) || *p == '\0')
657 >  assert(p);
658 >
659 >  /*
660 >   * Nicks can't start with a digit or - or be 0 length.
661 >   */
662 >  if (EmptyString(p) || *p == '-' || (IsDigit(*p) && local))
663      return 0;
664  
665    for (; *p; ++p)
# Line 731 | Line 669 | valid_nickname(const char *nickname, con
669    return p - nickname <= NICKLEN;
670   }
671  
734 /* report_and_set_user_flags()
735 *
736 * inputs       - pointer to source_p
737 *              - pointer to conf for this user
738 * output       - NONE
739 * side effects - Report to user any special flags
740 *                they are getting, and set them.
741 */
742 static void
743 report_and_set_user_flags(struct Client *source_p, const struct MaskItem *conf)
744 {
745  /* If this user is being spoofed, tell them so */
746  if (IsConfDoSpoofIp(conf))
747  {
748    sendto_one(source_p,
749               ":%s NOTICE %s :*** Spoofing your IP. congrats.",
750               me.name, source_p->name);
751  }
752
753  /* If this user is in the exception class, Set it "E lined" */
754  if (IsConfExemptKline(conf))
755  {
756    SetExemptKline(source_p);
757    sendto_one(source_p,
758               ":%s NOTICE %s :*** You are exempt from K/D/G lines. congrats.",
759               me.name, source_p->name);
760  }
761
762  /* The else here is to make sure that G line exempt users
763   * do not get noticed twice.
764   */
765  else if (IsConfExemptGline(conf))
766  {
767    SetExemptGline(source_p);
768    sendto_one(source_p, ":%s NOTICE %s :*** You are exempt from G lines.",
769               me.name, source_p->name);
770  }
771
772  if (IsConfExemptResv(conf))
773  {
774    SetExemptResv(source_p);
775    sendto_one(source_p, ":%s NOTICE %s :*** You are exempt from resvs.",
776               me.name, source_p->name);
777  }
778
779  /* If this user is exempt from user limits set it "F lined" */
780  if (IsConfExemptLimits(conf))
781  {
782    SetExemptLimits(source_p);
783    sendto_one(source_p,
784               ":%s NOTICE %s :*** You are exempt from user limits. congrats.",
785               me.name,source_p->name);
786  }
787
788  if (IsConfCanFlood(conf))
789  {
790    SetCanFlood(source_p);
791    sendto_one(source_p, ":%s NOTICE %s :*** You are exempt from flood "
792               "protection, aren't you fearsome.",
793               me.name, source_p->name);
794  }
795 }
796
797 /* change_simple_umode()
798 *
799 * this callback can be hooked to allow special handling of
800 * certain usermodes
801 */
802 static void *
803 change_simple_umode(va_list args)
804 {
805  struct Client *client_p;
806  struct Client *source_p;
807  int what;
808  unsigned int flag;
809
810  client_p = va_arg(args, struct Client *);
811  source_p = va_arg(args, struct Client *);
812  what = va_arg(args, int);
813  flag = va_arg(args, unsigned int);
814
815  if (what == MODE_ADD)
816    AddUMode(source_p, flag);
817  else
818    DelUMode(source_p, flag);
819
820  return NULL;
821 }
822
823 /* set_user_mode()
824 *
825 * added 15/10/91 By Darren Reed.
826 * parv[0] - sender
827 * parv[1] - username to change mode for
828 * parv[2] - modes to change
829 */
830 void
831 set_user_mode(struct Client *client_p, struct Client *source_p,
832              int parc, char *parv[])
833 {
834  unsigned int flag, setflags;
835  char **p, *m, buf[IRCD_BUFSIZE];
836  struct Client *target_p;
837  int what = MODE_ADD, badflag = 0, i;
838
839  assert(!(parc < 2));
840
841  if ((target_p = find_person(client_p, parv[1])) == NULL)
842  {
843    if (MyConnect(source_p))
844      sendto_one(source_p, form_str(ERR_NOSUCHCHANNEL),
845                 me.name, source_p->name, parv[1]);
846    return;
847  }
848
849  if (source_p != target_p)
850  {
851     sendto_one(source_p, form_str(ERR_USERSDONTMATCH),
852                me.name, source_p->name);
853     return;
854  }
855
856  if (parc < 3)
857  {
858    m = buf;
859    *m++ = '+';
860
861    for (i = 0; i < 128; i++)
862      if (HasUMode(source_p, user_modes[i]))
863        *m++ = (char)i;
864    *m = '\0';
865
866    sendto_one(source_p, form_str(RPL_UMODEIS),
867               me.name, source_p->name, buf);
868    return;
869  }
870
871  execute_callback(entering_umode_cb, client_p, source_p);
872
873  /* find flags already set for user */
874  setflags = source_p->umodes;
875
876  /* parse mode change string(s) */
877  for (p = &parv[2]; p && *p; p++)
878  {
879    for (m = *p; *m; m++)
880    {
881      switch (*m)
882      {
883        case '+':
884          what = MODE_ADD;
885          break;
886        case '-':
887          what = MODE_DEL;
888          break;
889        case 'o':
890          if (what == MODE_ADD)
891          {
892            if (IsServer(client_p) && !HasUMode(source_p, UMODE_OPER))
893            {
894              ++Count.oper;
895              SetOper(source_p);
896            }
897          }
898          else
899          {
900            /* Only decrement the oper counts if an oper to begin with
901             * found by Pat Szuta, Perly , perly@xnet.com
902             */
903            if (!HasUMode(source_p, UMODE_OPER))
904              break;
905
906            ClearOper(source_p);
907            Count.oper--;
908
909            if (MyConnect(source_p))
910            {
911              dlink_node *dm;
912
913              detach_conf(source_p, CONF_OPER);
914              ClrOFlag(source_p);
915              DelUMode(source_p, ConfigFileEntry.oper_only_umodes);
916
917              if ((dm = dlinkFindDelete(&oper_list, source_p)) != NULL)
918                free_dlink_node(dm);
919            }
920          }
921
922          break;
923
924        /* we may not get these,
925         * but they shouldnt be in default
926         */
927        case 'r':
928        case ' ' :
929        case '\n':
930        case '\r':
931        case '\t':
932          break;
933
934        default:
935          if ((flag = user_modes[(unsigned char)*m]))
936          {
937            if (MyConnect(source_p) && !HasUMode(source_p, UMODE_OPER) &&
938                (ConfigFileEntry.oper_only_umodes & flag))
939            {
940              badflag = 1;
941            }
942            else
943              execute_callback(umode_cb, client_p, source_p, what, flag);
944          }
945          else
946          {
947            if (MyConnect(source_p))
948              badflag = 1;
949          }
950
951          break;
952      }
953    }
954  }
955
956  if (badflag)
957    sendto_one(source_p, form_str(ERR_UMODEUNKNOWNFLAG),
958               me.name, source_p->name);
959
960  if (HasUMode(source_p, UMODE_NCHANGE) && !HasOFlag(source_p, OPER_FLAG_N))
961  {
962    sendto_one(source_p, ":%s NOTICE %s :*** You have no nchange flag;",
963               me.name, source_p->name);
964    DelUMode(source_p, UMODE_NCHANGE);
965  }
966
967  if (MyConnect(source_p) && HasUMode(source_p, UMODE_ADMIN) &&
968      !HasOFlag(source_p, OPER_FLAG_ADMIN))
969  {
970    sendto_one(source_p, ":%s NOTICE %s :*** You have no admin flag;",
971               me.name, source_p->name);
972    DelUMode(source_p, UMODE_ADMIN);
973  }
974
975  if (!(setflags & UMODE_INVISIBLE) && HasUMode(source_p, UMODE_INVISIBLE))
976    ++Count.invisi;
977  if ((setflags & UMODE_INVISIBLE) && !HasUMode(source_p, UMODE_INVISIBLE))
978    --Count.invisi;
979
980  /*
981   * compare new flags with old flags and send string which
982   * will cause servers to update correctly.
983   */
984  send_umode_out(client_p, source_p, setflags);
985 }
986
672   /* send_umode()
673   * send the MODE string for user (user) to connection client_p
674   * -avalon
# Line 991 | Line 676 | set_user_mode(struct Client *client_p, s
676   * inputs       - client_p
677   *              - source_p
678   *              - int old
994 *              - sendmask mask of modes to send
679   *              - suplied umode_buf
680   * output       - NONE
681   */
682   void
683   send_umode(struct Client *client_p, struct Client *source_p,
684 <           unsigned int old, unsigned int sendmask, char *umode_buf)
684 >           unsigned int old, char *umode_buf)
685   {
686    char *m = umode_buf;
687    int what = 0;
1004  unsigned int i;
1005  unsigned int flag;
688  
689    /*
690 <   * build a string in umode_buf to represent the change in the user's
690 >   * Build a string in umode_buf to represent the change in the user's
691     * mode between the new (source_p->umodes) and 'old'.
692     */
693 <  for (i = 0; i < 128; i++)
693 >  for (const struct user_modes *tab = umode_tab; tab->c; ++tab)
694    {
695 <    flag = user_modes[i];
1014 <    if (!flag)
1015 <      continue;
1016 <
1017 <    if (MyClient(source_p) && !(flag & sendmask))
1018 <      continue;
1019 <
1020 <    if ((flag & old) && !HasUMode(source_p, flag))
695 >    if ((tab->flag & old) && !HasUMode(source_p, tab->flag))
696      {
697        if (what == MODE_DEL)
698 <        *m++ = (char)i;
698 >        *m++ = tab->c;
699        else
700        {
701          what = MODE_DEL;
702          *m++ = '-';
703 <        *m++ = (char)i;
703 >        *m++ = tab->c;
704        }
705      }
706 <    else if (!(flag & old) && HasUMode(source_p, flag))
706 >    else if (!(tab->flag & old) && HasUMode(source_p, tab->flag))
707      {
708        if (what == MODE_ADD)
709 <        *m++ = (char)i;
709 >        *m++ = tab->c;
710        else
711        {
712          what = MODE_ADD;
713          *m++ = '+';
714 <        *m++ = (char)i;
714 >        *m++ = tab->c;
715        }
716      }
717    }
# Line 1045 | Line 720 | send_umode(struct Client *client_p, stru
720  
721    if (*umode_buf && client_p)
722      sendto_one(client_p, ":%s!%s@%s MODE %s :%s",
723 <               source_p->name, source_p->username,
724 <               source_p->host, source_p->name, umode_buf);
723 >               client_p->name, client_p->username,
724 >               client_p->host, client_p->name, umode_buf);
725   }
726  
727   /* send_umode_out()
# Line 1056 | Line 731 | send_umode(struct Client *client_p, stru
731   * side effects - Only send ubuf out to servers that know about this client
732   */
733   void
734 < send_umode_out(struct Client *client_p, struct Client *source_p,
1060 <               unsigned int old)
734 > send_umode_out(struct Client *source_p, unsigned int old)
735   {
736 <  char buf[IRCD_BUFSIZE] = { '\0' };
1063 <  dlink_node *ptr = NULL;
736 >  char buf[IRCD_BUFSIZE] = "";
737  
738 <  send_umode(NULL, source_p, old, SEND_UMODES, buf);
738 >  send_umode(MyClient(source_p) ? source_p : NULL, source_p, old, buf);
739  
740    if (buf[0])
741 <  {
742 <    DLINK_FOREACH(ptr, serv_list.head)
1070 <    {
1071 <      struct Client *target_p = ptr->data;
1072 <
1073 <      if ((target_p != client_p) && (target_p != source_p))
1074 <        sendto_one(target_p, ":%s MODE %s :%s",
1075 <                   ID_or_name(source_p, target_p),
1076 <                   ID_or_name(source_p, target_p), buf);
1077 <    }
1078 <  }
1079 <
1080 <  if (client_p && MyClient(client_p))
1081 <    send_umode(client_p, source_p, old, 0xffffffff, buf);
1082 < }
1083 <
1084 < /* user_welcome()
1085 < *
1086 < * inputs       - client pointer to client to welcome
1087 < * output       - NONE
1088 < * side effects -
1089 < */
1090 < static void
1091 < user_welcome(struct Client *source_p)
1092 < {
1093 < #if defined(__TIME__) && defined(__DATE__)
1094 <  static const char built_date[] = __DATE__ " at " __TIME__;
1095 < #else
1096 <  static const char built_date[] = "unknown";
1097 < #endif
1098 <
1099 < #ifdef HAVE_LIBCRYPTO
1100 <  if (source_p->localClient->fd.ssl != NULL)
1101 <    sendto_one(source_p, ":%s NOTICE %s :*** Connected securely via %s",
1102 <               me.name, source_p->name,
1103 <               ssl_get_cipher(source_p->localClient->fd.ssl));
1104 < #endif
1105 <
1106 <  sendto_one(source_p, form_str(RPL_WELCOME), me.name, source_p->name,
1107 <             ServerInfo.network_name, source_p->name);
1108 <  sendto_one(source_p, form_str(RPL_YOURHOST), me.name, source_p->name,
1109 <             get_listener_name(source_p->localClient->listener), ircd_version);
1110 <  sendto_one(source_p, form_str(RPL_CREATED),
1111 <             me.name, source_p->name, built_date);
1112 <  sendto_one(source_p, form_str(RPL_MYINFO),
1113 <             me.name, source_p->name, me.name, ircd_version, umode_buffer);
1114 <  show_isupport(source_p);
1115 <
1116 <  if (source_p->id[0] != '\0')
1117 <    sendto_one(source_p, form_str(RPL_YOURID), me.name,
1118 <               source_p->name, source_p->id);
1119 <
1120 <  show_lusers(source_p);
1121 <
1122 <  if (ConfigFileEntry.short_motd)
1123 <  {
1124 <    sendto_one(source_p, ":%s NOTICE %s :*** Notice -- motd was last changed at %s",
1125 <               me.name, source_p->name, ConfigFileEntry.motd.lastChangedDate);
1126 <    sendto_one(source_p,
1127 <               ":%s NOTICE %s :*** Notice -- Please read the motd if you haven't "
1128 <               "read it", me.name, source_p->name);
1129 <    sendto_one(source_p, form_str(RPL_MOTDSTART),
1130 <               me.name, source_p->name, me.name);
1131 <    sendto_one(source_p, form_str(RPL_MOTD),
1132 <               me.name, source_p->name,
1133 <               "*** This is the short motd ***");
1134 <    sendto_one(source_p, form_str(RPL_ENDOFMOTD),
1135 <               me.name, source_p->name);
1136 <  }
1137 <  else  
1138 <    send_message_file(source_p, &ConfigFileEntry.motd);
741 >    sendto_server(source_p, 0, 0, ":%s MODE %s :%s",
742 >                  source_p->id, source_p->id, buf);
743   }
744  
1141 /* check_xline()
1142 *
1143 * inputs       - pointer to client to test
1144 * outupt       - 1 if exiting 0 if ok
1145 * side effects -
1146 */
1147 static int
1148 check_xline(struct Client *source_p)
1149 {
1150  struct MaskItem *conf = NULL;
1151  const char *reason = NULL;
1152
1153  if ((conf = find_matching_name_conf(CONF_XLINE, source_p->info, NULL, NULL, 0)) ||
1154      (conf = find_matching_name_conf(CONF_RXLINE, source_p->info, NULL, NULL, 0)))
1155  {
1156    ++conf->count;
1157
1158    if (conf->reason != NULL)
1159      reason = conf->reason;
1160    else
1161      reason = "No Reason";
1162
1163    sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE,
1164                         "X-line Rejecting [%s] [%s], user %s [%s]",
1165                         source_p->info, reason,
1166                         get_client_name(source_p, HIDE_IP),
1167                         source_p->sockhost);
1168
1169    ++ServerStats.is_ref;
1170    exit_client(source_p, &me, "Bad user info");
1171    return 1;
1172  }
1173
1174  return 0;
1175 }
1176
1177 /* oper_up()
1178 *
1179 * inputs       - pointer to given client to oper
1180 * output       - NONE
1181 * side effects - Blindly opers up given source_p, using conf info
1182 *                all checks on passwords have already been done.
1183 *                This could also be used by rsa oper routines.
1184 */
1185 void
1186 oper_up(struct Client *source_p)
1187 {
1188  const unsigned int old = source_p->umodes;
1189  const struct MaskItem *conf = source_p->localClient->confs.head->data;
1190
1191  assert(source_p->localClient->confs.head);
1192
1193  ++Count.oper;
1194  SetOper(source_p);
1195
1196  if (conf->modes)
1197    AddUMode(source_p, conf->modes);
1198  else if (ConfigFileEntry.oper_umodes)
1199    AddUMode(source_p, ConfigFileEntry.oper_umodes);
1200
1201  if (!(old & UMODE_INVISIBLE) && HasUMode(source_p, UMODE_INVISIBLE))
1202    ++Count.invisi;
1203  if ((old & UMODE_INVISIBLE) && !HasUMode(source_p, UMODE_INVISIBLE))
1204    --Count.invisi;
1205
1206  assert(dlinkFind(&oper_list, source_p) == NULL);
1207  dlinkAdd(source_p, make_dlink_node(), &oper_list);
1208
1209  AddOFlag(source_p, conf->port);
1210
1211  if (HasOFlag(source_p, OPER_FLAG_ADMIN))
1212    AddUMode(source_p, UMODE_ADMIN);
1213  if (!HasOFlag(source_p, OPER_FLAG_N))
1214    DelUMode(source_p, UMODE_NCHANGE);
1215
1216  sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, "%s is now an operator",
1217                       get_oper_name(source_p));
1218  send_umode_out(source_p, source_p, old);
1219  sendto_one(source_p, form_str(RPL_YOUREOPER), me.name, source_p->name);
1220 }
1221
1222 static char new_uid[TOTALSIDUID + 1];     /* allow for \0 */
1223
1224 int
1225 valid_sid(const char *sid)
1226 {
1227  if (strlen(sid) == IRC_MAXSID)
1228    if (IsDigit(*sid))
1229      if (IsAlNum(*(sid + 1)) && IsAlNum(*(sid + 2)))
1230        return 1;
1231
1232  return 0;
1233 }
1234
1235 /*
1236 * init_uid()
1237 *
1238 * inputs       - NONE
1239 * output       - NONE
1240 * side effects - new_uid is filled in with server id portion (sid)
1241 *                (first 3 bytes) or defaulted to 'A'.
1242 *                Rest is filled in with 'A'
1243 */
745   void
746 < init_uid(void)
1246 < {
1247 <  int i;
1248 <
1249 <  memset(new_uid, 0, sizeof(new_uid));
1250 <
1251 <  if (!EmptyString(ServerInfo.sid))
1252 <    strlcpy(new_uid, ServerInfo.sid, sizeof(new_uid));
1253 <
1254 <  for (i = 0; i < IRC_MAXSID; ++i)
1255 <    if (new_uid[i] == '\0')
1256 <      new_uid[i] = 'A';
1257 <
1258 <  /* NOTE: if IRC_MAXUID != 6, this will have to be rewritten */
1259 <  /* Yes nenolod, I have known it was off by one ever since I wrote it
1260 <   * But *JUST* for you, though, it really doesn't look as *pretty*
1261 <   * -Dianora
1262 <   */
1263 <  memcpy(new_uid + IRC_MAXSID, "AAAAA@", IRC_MAXUID);
1264 <
1265 <  entering_umode_cb = register_callback("entering_umode", NULL);
1266 <  umode_cb = register_callback("changing_umode", change_simple_umode);
1267 < }
1268 <
1269 < /*
1270 < * add_one_to_uid
1271 < *
1272 < * inputs       - index number into new_uid
1273 < * output       - NONE
1274 < * side effects - new_uid is incremented by one
1275 < *                note this is a recursive function
1276 < */
1277 < static void
1278 < add_one_to_uid(int i)
746 > user_set_hostmask(struct Client *target_p, const char *hostname, const int what)
747   {
748 <  if (i != IRC_MAXSID)    /* Not reached server SID portion yet? */
1281 <  {
1282 <    if (new_uid[i] == 'Z')
1283 <      new_uid[i] = '0';
1284 <    else if (new_uid[i] == '9')
1285 <    {
1286 <      new_uid[i] = 'A';
1287 <      add_one_to_uid(i-1);
1288 <    }
1289 <    else
1290 <      ++new_uid[i];
1291 <  }
1292 <  else
1293 <  {
1294 <    /* NOTE: if IRC_MAXUID != 6, this will have to be rewritten */
1295 <    if (new_uid[i] == 'Z')
1296 <      memcpy(new_uid + IRC_MAXSID, "AAAAAA", IRC_MAXUID);
1297 <    else
1298 <      ++new_uid[i];
1299 <  }
1300 < }
748 >  dlink_node *node = NULL;
749  
750 < /*
751 < * uid_get
1304 < *
1305 < * inputs       - struct Client *
1306 < * output       - new UID is returned to caller
1307 < * side effects - new_uid is incremented by one.
1308 < */
1309 < static const char *
1310 < uid_get(void)
1311 < {
1312 <  add_one_to_uid(TOTALSIDUID - 1);    /* index from 0 */
1313 <  return new_uid;
1314 < }
1315 <
1316 < /*
1317 < * init_isupport()
1318 < *
1319 < * input        - NONE
1320 < * output       - NONE
1321 < * side effects - Must be called before isupport is enabled
1322 < */
1323 < void
1324 < init_isupport(void)
1325 < {
1326 <  isupportFile = init_MessageLine();
1327 <
1328 <  add_isupport("CALLERID", NULL, -1);
1329 <  add_isupport("CASEMAPPING", CASEMAP, -1);
1330 <  add_isupport("DEAF", "D", -1);
1331 <  add_isupport("KICKLEN", NULL, KICKLEN);
1332 <  add_isupport("MODES", NULL, MAXMODEPARAMS);
1333 < #ifdef HALFOPS
1334 <  add_isupport("PREFIX", "(ohv)@%+", -1);
1335 <  add_isupport("STATUSMSG", "@%+", -1);
1336 < #else
1337 <  add_isupport("PREFIX", "(ov)@+", -1);
1338 <  add_isupport("STATUSMSG", "@+", -1);
1339 < #endif
1340 < }
1341 <
1342 < /*
1343 < * add_isupport()
1344 < *
1345 < * input        - name of supported function
1346 < *              - options if any
1347 < *              - number if any
1348 < * output       - NONE
1349 < * side effects - Each supported item must call this when activated
1350 < */
1351 < void
1352 < add_isupport(const char *name, const char *options, int n)
1353 < {
1354 <  dlink_node *ptr;
1355 <  struct Isupport *support;
750 >  if (!strcmp(target_p->host, hostname))
751 >    return;
752  
753 <  DLINK_FOREACH(ptr, support_list.head)
753 >  switch (what)
754    {
755 <    support = ptr->data;
756 <    if (irccmp(support->name, name) == 0)
1361 <    {
1362 <      MyFree(support->name);
1363 <      MyFree(support->options);
755 >    case MODE_ADD:
756 >      AddUMode(target_p, UMODE_HIDDENHOST);
757        break;
758 <    }
758 >    case MODE_DEL:
759 >      DelUMode(target_p, UMODE_HIDDENHOST);
760 >      break;
761 >    default: return;
762    }
763  
764 <  if (ptr == NULL)
765 <  {
766 <    support = MyMalloc(sizeof(*support));
1371 <    dlinkAddTail(support, &support->node, &support_list);
1372 <  }
764 >  if (ConfigGeneral.cycle_on_host_change)
765 >    sendto_common_channels_local(target_p, 0, 0, ":%s!%s@%s QUIT :Changing hostname",
766 >                                 target_p->name, target_p->username, target_p->host);
767  
768 <  support->name = xstrdup(name);
769 <  if (options != NULL)
1376 <    support->options = xstrdup(options);
1377 <  support->number = n;
768 >  if (HasFlag(target_p, FLAGS_USERHOST))
769 >    userhost_del(target_p->username, target_p->host, !MyConnect(target_p));
770  
771 <  rebuild_isupport_message_line();
1380 < }
771 >  strlcpy(target_p->host, hostname, sizeof(target_p->host));
772  
773 < /*
774 < * delete_isupport()
1384 < *
1385 < * input        - name of supported function
1386 < * output       - NONE
1387 < * side effects - Each supported item must call this when deactivated
1388 < */
1389 < void
1390 < delete_isupport(const char *name)
1391 < {
1392 <  dlink_node *ptr;
1393 <  struct Isupport *support;
773 >  userhost_add(target_p->username, target_p->host, !MyConnect(target_p));
774 >  AddFlag(target_p, FLAGS_USERHOST);
775  
776 <  DLINK_FOREACH(ptr, support_list.head)
776 >  if (MyConnect(target_p))
777    {
778 <    support = ptr->data;
779 <    if (irccmp(support->name, name) == 0)
1399 <    {
1400 <      dlinkDelete(ptr, &support_list);
1401 <      MyFree(support->name);
1402 <      MyFree(support->options);
1403 <      MyFree(support);
1404 <      break;
1405 <    }
778 >    sendto_one_numeric(target_p, &me, RPL_VISIBLEHOST, target_p->host);
779 >    clear_ban_cache_client(target_p);
780    }
781  
782 <  rebuild_isupport_message_line();
783 < }
1410 <
1411 < /*
1412 < * rebuild_isupport_message_line
1413 < *
1414 < * input        - NONE
1415 < * output       - NONE
1416 < * side effects - Destroy the isupport MessageFile lines, and rebuild.
1417 < */
1418 < void
1419 < rebuild_isupport_message_line(void)
1420 < {
1421 <  char isupportbuffer[IRCD_BUFSIZE];
1422 <  char *p = isupportbuffer;
1423 <  dlink_node *ptr = NULL;
1424 <  int n = 0;
1425 <  int tokens = 0;
1426 <  size_t len = 0;
1427 <  size_t reserve = strlen(me.name) + HOSTLEN + strlen(form_str(RPL_ISUPPORT));
1428 <
1429 <  destroy_MessageLine(isupportFile);
782 >  if (!ConfigGeneral.cycle_on_host_change)
783 >    return;
784  
785 <  DLINK_FOREACH(ptr, support_list.head)
785 >  DLINK_FOREACH(node, target_p->channel.head)
786    {
787 <    struct Isupport *support = ptr->data;
787 >    char modebuf[4], nickbuf[NICKLEN * 3 + 3] = "";
788 >    char *p = modebuf;
789 >    int len = 0;
790 >    const struct Membership *member = node->data;
791  
792 <    p += (n = sprintf(p, "%s", support->name));
793 <    len += n;
792 >    if (has_member_flags(member, CHFL_CHANOP))
793 >    {
794 >      *p++ = 'o';
795 >      len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", target_p->name);
796 >    }
797  
798 <    if (support->options != NULL)
798 >    if (has_member_flags(member, CHFL_HALFOP))
799      {
800 <      p += (n = sprintf(p, "=%s", support->options));
801 <      len += n;
800 >      *p++ = 'h';
801 >      len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", target_p->name);
802      }
803  
804 <    if (support->number > 0)
804 >    if (has_member_flags(member, CHFL_VOICE))
805      {
806 <      p += (n = sprintf(p, "=%d", support->number));
807 <      len += n;
806 >      *p++ = 'v';
807 >      len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", target_p->name);
808      }
809  
1450    *p++ = ' ';
1451    len++;
810      *p = '\0';
811  
1454    if (++tokens == (MAXPARA-2) || len >= (sizeof(isupportbuffer)-reserve))
1455    { /* arbritrary for now */
1456      if (*--p == ' ')
1457        *p = '\0';
1458
1459      addto_MessageLine(isupportFile, isupportbuffer);
1460      p = isupportbuffer;
1461      len = 0;
1462      n = tokens = 0;
1463    }
1464  }
812  
813 <  if (len != 0)
814 <  {
815 <    if (*--p == ' ')
816 <      *p = '\0';
817 <    addto_MessageLine(isupportFile, isupportbuffer);
813 >    sendto_channel_local_butone(target_p, CAP_EXTENDED_JOIN, 0, member->chptr, ":%s!%s@%s JOIN %s %s :%s",
814 >                                target_p->name, target_p->username,
815 >                                target_p->host, member->chptr->name,
816 >                                (!IsDigit(target_p->account[0]) && target_p->account[0] != '*') ? target_p->account : "*",
817 >                                target_p->info);
818 >    sendto_channel_local_butone(target_p, 0, CAP_EXTENDED_JOIN, member->chptr, ":%s!%s@%s JOIN :%s",
819 >                                target_p->name, target_p->username,
820 >                                target_p->host, member->chptr->name);
821 >
822 >    if (nickbuf[0])
823 >      sendto_channel_local_butone(target_p, 0, 0, member->chptr, ":%s MODE %s +%s %s",
824 >                                  target_p->servptr->name, member->chptr->name,
825 >                                  modebuf, nickbuf);
826 >
827    }
828 +
829 +  if (target_p->away[0])
830 +    sendto_common_channels_local(target_p, 0, CAP_AWAY_NOTIFY,
831 +                                 ":%s!%s@%s AWAY :%s",
832 +                                 target_p->name, target_p->username,
833 +                                 target_p->host, target_p->away);
834   }

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