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/* |
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* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd) |
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* |
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* Copyright (c) 1997-2014 ircd-hybrid development team |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
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* USA |
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*/ |
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|
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/*! \file s_user.c |
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* \brief User related functions. |
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* \version $Id$ |
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*/ |
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|
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#include "stdinc.h" |
28 |
#include "list.h" |
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#include "s_user.h" |
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#include "s_misc.h" |
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#include "channel.h" |
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#include "channel_mode.h" |
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#include "client.h" |
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#include "fdlist.h" |
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#include "hash.h" |
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#include "irc_string.h" |
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#include "s_bsd.h" |
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#include "ircd.h" |
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#include "listener.h" |
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#include "motd.h" |
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#include "numeric.h" |
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#include "conf.h" |
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#include "log.h" |
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#include "s_serv.h" |
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#include "send.h" |
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#include "supported.h" |
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#include "whowas.h" |
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#include "memory.h" |
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#include "packet.h" |
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#include "rng_mt.h" |
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#include "userhost.h" |
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#include "hook.h" |
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#include "s_misc.h" |
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#include "parse.h" |
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#include "watch.h" |
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|
57 |
static char umode_buffer[IRCD_BUFSIZE]; |
58 |
|
59 |
static void user_welcome(struct Client *); |
60 |
static void report_and_set_user_flags(struct Client *, const struct MaskItem *); |
61 |
static int check_xline(struct Client *); |
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static void introduce_client(struct Client *); |
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static const char *uid_get(void); |
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|
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/* Used for building up the isupport string, |
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* used with init_isupport, add_isupport, delete_isupport |
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*/ |
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|
69 |
struct Isupport |
70 |
{ |
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dlink_node node; |
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char *name; |
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char *options; |
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int number; |
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}; |
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|
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static dlink_list support_list; |
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static dlink_list support_list_lines; |
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|
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/* memory is cheap. map 0-255 to equivalent mode */ |
81 |
const unsigned int user_modes[256] = |
82 |
{ |
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/* 0x00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x0F */ |
84 |
/* 0x10 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x1F */ |
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/* 0x20 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x2F */ |
86 |
/* 0x30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x3F */ |
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0, /* @ */ |
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0, /* A */ |
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0, /* B */ |
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0, /* C */ |
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UMODE_DEAF, /* D */ |
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0, /* E */ |
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UMODE_FARCONNECT, /* F */ |
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UMODE_SOFTCALLERID, /* G */ |
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UMODE_HIDDEN, /* H */ |
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0, /* I */ |
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0, /* J */ |
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0, /* K */ |
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0, /* L */ |
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0, /* M */ |
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0, /* N */ |
102 |
0, /* O */ |
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0, /* P */ |
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0, /* Q */ |
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UMODE_REGONLY, /* R */ |
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UMODE_SSL, /* S */ |
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0, /* T */ |
108 |
0, /* U */ |
109 |
0, /* V */ |
110 |
UMODE_WEBIRC, /* W */ |
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0, /* X */ |
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0, /* Y */ |
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0, /* Z 0x5A */ |
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0, 0, 0, 0, 0, /* 0x5F */ |
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0, /* 0x60 */ |
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UMODE_ADMIN, /* a */ |
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UMODE_BOTS, /* b */ |
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UMODE_CCONN, /* c */ |
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UMODE_DEBUG, /* d */ |
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UMODE_EXTERNAL, /* e */ |
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UMODE_FULL, /* f */ |
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UMODE_CALLERID, /* g */ |
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0, /* h */ |
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UMODE_INVISIBLE, /* i */ |
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UMODE_REJ, /* j */ |
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UMODE_SKILL, /* k */ |
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UMODE_LOCOPS, /* l */ |
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0, /* m */ |
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UMODE_NCHANGE, /* n */ |
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UMODE_OPER, /* o */ |
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0, /* p */ |
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0, /* q */ |
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UMODE_REGISTERED, /* r */ |
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UMODE_SERVNOTICE, /* s */ |
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0, /* t */ |
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UMODE_UNAUTH, /* u */ |
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0, /* v */ |
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UMODE_WALLOP, /* w */ |
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UMODE_HIDDENHOST, /* x */ |
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UMODE_SPY, /* y */ |
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UMODE_OPERWALL, /* z 0x7A */ |
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0,0,0,0,0, /* 0x7B - 0x7F */ |
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|
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/* 0x80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x8F */ |
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/* 0x90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x9F */ |
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/* 0xA0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xAF */ |
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/* 0xB0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xBF */ |
148 |
/* 0xC0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xCF */ |
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/* 0xD0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xDF */ |
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/* 0xE0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0xEF */ |
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/* 0xF0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 /* 0xFF */ |
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}; |
153 |
|
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void |
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assemble_umode_buffer(void) |
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{ |
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unsigned int idx = 0; |
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char *umode_buffer_ptr = umode_buffer; |
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|
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for (; idx < (sizeof(user_modes) / sizeof(user_modes[0])); ++idx) |
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if (user_modes[idx]) |
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*umode_buffer_ptr++ = idx; |
163 |
|
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*umode_buffer_ptr = '\0'; |
165 |
} |
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|
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/* show_lusers() |
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* |
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* inputs - pointer to client |
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* output - NONE |
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* side effects - display to client user counts etc. |
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*/ |
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void |
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show_lusers(struct Client *source_p) |
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{ |
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if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER)) |
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sendto_one_numeric(source_p, &me, RPL_LUSERCLIENT, (Count.total-Count.invisi), |
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Count.invisi, dlink_list_length(&global_serv_list)); |
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else |
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sendto_one_numeric(source_p, &me, RPL_LUSERCLIENT, |
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(Count.total-Count.invisi), Count.invisi, 1); |
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|
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if (Count.oper > 0) |
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sendto_one_numeric(source_p, &me, RPL_LUSEROP, Count.oper); |
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|
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if (dlink_list_length(&unknown_list) > 0) |
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sendto_one_numeric(source_p, &me, RPL_LUSERUNKNOWN, dlink_list_length(&unknown_list)); |
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|
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if (dlink_list_length(&global_channel_list) > 0) |
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sendto_one_numeric(source_p, &me, RPL_LUSERCHANNELS, dlink_list_length(&global_channel_list)); |
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|
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if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER)) |
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{ |
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sendto_one_numeric(source_p, &me, RPL_LUSERME, Count.local, Count.myserver); |
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sendto_one_numeric(source_p, &me, RPL_LOCALUSERS, Count.local, Count.max_loc); |
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} |
197 |
else |
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{ |
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sendto_one_numeric(source_p, &me, RPL_LUSERME, Count.total, 0); |
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sendto_one_numeric(source_p, &me, RPL_LOCALUSERS, Count.total, Count.max_tot); |
201 |
} |
202 |
|
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sendto_one_numeric(source_p, &me, RPL_GLOBALUSERS, Count.total, Count.max_tot); |
204 |
|
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if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER)) |
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sendto_one_numeric(source_p, &me, RPL_STATSCONN, Count.max_loc_con, |
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Count.max_loc_cli, Count.totalrestartcount); |
208 |
|
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if (Count.local > Count.max_loc_cli) |
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Count.max_loc_cli = Count.local; |
211 |
|
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if ((Count.local + Count.myserver) > Count.max_loc_con) |
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Count.max_loc_con = Count.local + Count.myserver; |
214 |
} |
215 |
|
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/* show_isupport() |
217 |
* |
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* inputs - pointer to client |
219 |
* output - NONE |
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* side effects - display to client what we support (for them) |
221 |
*/ |
222 |
void |
223 |
show_isupport(struct Client *source_p) |
224 |
{ |
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const dlink_node *ptr = NULL; |
226 |
|
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DLINK_FOREACH(ptr, support_list_lines.head) |
228 |
sendto_one_numeric(source_p, &me, RPL_ISUPPORT, ptr->data); |
229 |
} |
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|
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/* |
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** register_local_user |
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** This function is called when both NICK and USER messages |
234 |
** have been accepted for the client, in whatever order. Only |
235 |
** after this, is the USER message propagated. |
236 |
** |
237 |
** NICK's must be propagated at once when received, although |
238 |
** it would be better to delay them too until full info is |
239 |
** available. Doing it is not so simple though, would have |
240 |
** to implement the following: |
241 |
** |
242 |
** (actually it has been implemented already for a while) -orabidoo |
243 |
** |
244 |
** 1) user telnets in and gives only "NICK foobar" and waits |
245 |
** 2) another user far away logs in normally with the nick |
246 |
** "foobar" (quite legal, as this server didn't propagate |
247 |
** it). |
248 |
** 3) now this server gets nick "foobar" from outside, but |
249 |
** has alread the same defined locally. Current server |
250 |
** would just issue "KILL foobar" to clean out dups. But, |
251 |
** this is not fair. It should actually request another |
252 |
** nick from local user or kill him/her... |
253 |
*/ |
254 |
void |
255 |
register_local_user(struct Client *source_p) |
256 |
{ |
257 |
const char *id = NULL; |
258 |
const struct MaskItem *conf = NULL; |
259 |
|
260 |
assert(source_p != NULL); |
261 |
assert(source_p == source_p->from); |
262 |
assert(MyConnect(source_p)); |
263 |
assert(!source_p->localClient->registration); |
264 |
|
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ClearCap(source_p, CAP_TS6); |
266 |
|
267 |
if (ConfigFileEntry.ping_cookie) |
268 |
{ |
269 |
if (!IsPingSent(source_p) && !source_p->localClient->random_ping) |
270 |
{ |
271 |
do |
272 |
source_p->localClient->random_ping = genrand_int32(); |
273 |
while (!source_p->localClient->random_ping); |
274 |
|
275 |
sendto_one(source_p, "PING :%u", |
276 |
source_p->localClient->random_ping); |
277 |
SetPingSent(source_p); |
278 |
return; |
279 |
} |
280 |
|
281 |
if (!HasPingCookie(source_p)) |
282 |
return; |
283 |
} |
284 |
|
285 |
source_p->localClient->last_privmsg = CurrentTime; |
286 |
/* Straight up the maximum rate of flooding... */ |
287 |
source_p->localClient->allow_read = MAX_FLOOD_BURST; |
288 |
|
289 |
if (!check_client(source_p)) |
290 |
return; |
291 |
|
292 |
if (!valid_hostname(source_p->host)) |
293 |
{ |
294 |
sendto_one_notice(source_p, &me, ":*** Notice -- You have an illegal " |
295 |
"character in your hostname"); |
296 |
strlcpy(source_p->host, source_p->sockhost, |
297 |
sizeof(source_p->host)); |
298 |
} |
299 |
|
300 |
conf = source_p->localClient->confs.head->data; |
301 |
|
302 |
if (!IsGotId(source_p)) |
303 |
{ |
304 |
char username[USERLEN + 1]; |
305 |
const char *p = username; |
306 |
unsigned int i = 0; |
307 |
|
308 |
if (IsNeedIdentd(conf)) |
309 |
{ |
310 |
++ServerStats.is_ref; |
311 |
sendto_one_notice(source_p, &me, ":*** Notice -- You need to install " |
312 |
"identd to use this server"); |
313 |
exit_client(source_p, &me, "Install identd"); |
314 |
return; |
315 |
} |
316 |
|
317 |
strlcpy(username, source_p->username, sizeof(username)); |
318 |
|
319 |
if (!IsNoTilde(conf)) |
320 |
source_p->username[i++] = '~'; |
321 |
|
322 |
for (; *p && i < USERLEN; ++p) |
323 |
if (*p != '[') |
324 |
source_p->username[i++] = *p; |
325 |
|
326 |
source_p->username[i] = '\0'; |
327 |
} |
328 |
|
329 |
/* password check */ |
330 |
if (!EmptyString(conf->passwd)) |
331 |
{ |
332 |
const char *pass = source_p->localClient->passwd; |
333 |
|
334 |
if (!match_conf_password(pass, conf)) |
335 |
{ |
336 |
++ServerStats.is_ref; |
337 |
|
338 |
sendto_one_numeric(source_p, &me, ERR_PASSWDMISMATCH); |
339 |
exit_client(source_p, &me, "Bad Password"); |
340 |
return; |
341 |
} |
342 |
} |
343 |
|
344 |
/* don't free source_p->localClient->passwd here - it can be required |
345 |
* by masked /stats I if there are auth{} blocks with need_password = no; |
346 |
* --adx |
347 |
*/ |
348 |
|
349 |
/* report if user has &^>= etc. and set flags as needed in source_p */ |
350 |
report_and_set_user_flags(source_p, conf); |
351 |
|
352 |
if (IsDead(source_p)) |
353 |
return; |
354 |
|
355 |
/* Limit clients - |
356 |
* We want to be able to have servers and F-line clients |
357 |
* connect, so save room for "buffer" connections. |
358 |
* Smaller servers may want to decrease this, and it should |
359 |
* probably be just a percentage of the MAXCLIENTS... |
360 |
* -Taner |
361 |
*/ |
362 |
/* Except "F:" clients */ |
363 |
if ((Count.local >= ServerInfo.max_clients + MAX_BUFFER) || |
364 |
(Count.local >= ServerInfo.max_clients && !IsExemptLimits(source_p))) |
365 |
{ |
366 |
sendto_realops_flags(UMODE_FULL, L_ALL, SEND_NOTICE, |
367 |
"Too many clients, rejecting %s[%s].", |
368 |
source_p->name, source_p->host); |
369 |
++ServerStats.is_ref; |
370 |
exit_client(source_p, &me, "Sorry, server is full - try later"); |
371 |
return; |
372 |
} |
373 |
|
374 |
/* valid user name check */ |
375 |
if (!valid_username(source_p->username, 1)) |
376 |
{ |
377 |
char tmpstr2[IRCD_BUFSIZE]; |
378 |
|
379 |
sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE, |
380 |
"Invalid username: %s (%s@%s)", |
381 |
source_p->name, source_p->username, source_p->host); |
382 |
++ServerStats.is_ref; |
383 |
snprintf(tmpstr2, sizeof(tmpstr2), "Invalid username [%s]", |
384 |
source_p->username); |
385 |
exit_client(source_p, &me, tmpstr2); |
386 |
return; |
387 |
} |
388 |
|
389 |
if (check_xline(source_p)) |
390 |
return; |
391 |
|
392 |
while (hash_find_id((id = uid_get())) != NULL) |
393 |
; |
394 |
|
395 |
strlcpy(source_p->id, id, sizeof(source_p->id)); |
396 |
hash_add_id(source_p); |
397 |
|
398 |
sendto_realops_flags(UMODE_CCONN, L_ALL, SEND_NOTICE, |
399 |
"Client connecting: %s (%s@%s) [%s] {%s} [%s] <%s>", |
400 |
source_p->name, source_p->username, source_p->host, |
401 |
ConfigFileEntry.hide_spoof_ips && IsIPSpoof(source_p) ? |
402 |
"255.255.255.255" : source_p->sockhost, |
403 |
get_client_class(&source_p->localClient->confs), |
404 |
source_p->info, source_p->id); |
405 |
|
406 |
if (ConfigFileEntry.invisible_on_connect) |
407 |
{ |
408 |
AddUMode(source_p, UMODE_INVISIBLE); |
409 |
++Count.invisi; |
410 |
} |
411 |
|
412 |
if (++Count.local > Count.max_loc) |
413 |
{ |
414 |
Count.max_loc = Count.local; |
415 |
|
416 |
if (!(Count.max_loc % 10)) |
417 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
418 |
"New Max Local Clients: %d", |
419 |
Count.max_loc); |
420 |
} |
421 |
|
422 |
/* Increment our total user count here */ |
423 |
if (++Count.total > Count.max_tot) |
424 |
Count.max_tot = Count.total; |
425 |
++Count.totalrestartcount; |
426 |
|
427 |
assert(source_p->servptr == &me); |
428 |
SetClient(source_p); |
429 |
dlinkAdd(source_p, &source_p->lnode, &source_p->servptr->serv->client_list); |
430 |
|
431 |
source_p->localClient->allow_read = MAX_FLOOD_BURST; |
432 |
|
433 |
assert(dlinkFind(&unknown_list, source_p)); |
434 |
|
435 |
dlink_move_node(&source_p->localClient->lclient_node, |
436 |
&unknown_list, &local_client_list); |
437 |
|
438 |
user_welcome(source_p); |
439 |
add_user_host(source_p->username, source_p->host, 0); |
440 |
SetUserHost(source_p); |
441 |
|
442 |
introduce_client(source_p); |
443 |
} |
444 |
|
445 |
/* register_remote_user() |
446 |
* |
447 |
* inputs - source_p remote or directly connected client |
448 |
* - username to register as |
449 |
* - host name to register as |
450 |
* - server name |
451 |
* output - NONE |
452 |
* side effects - This function is called when a remote client |
453 |
* is introduced by a server. |
454 |
*/ |
455 |
void |
456 |
register_remote_user(struct Client *source_p, const char *username, |
457 |
const char *host, const char *server) |
458 |
{ |
459 |
struct Client *target_p = NULL; |
460 |
|
461 |
assert(source_p != NULL); |
462 |
assert(source_p->username != username); |
463 |
|
464 |
strlcpy(source_p->host, host, sizeof(source_p->host)); |
465 |
strlcpy(source_p->username, username, sizeof(source_p->username)); |
466 |
|
467 |
/* |
468 |
* coming from another server, take the servers word for it |
469 |
*/ |
470 |
source_p->servptr = hash_find_server(server); |
471 |
|
472 |
/* |
473 |
* Super GhostDetect: |
474 |
* If we can't find the server the user is supposed to be on, |
475 |
* then simply blow the user away. -Taner |
476 |
*/ |
477 |
if (source_p->servptr == NULL) |
478 |
{ |
479 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
480 |
"No server %s for user %s[%s@%s] from %s", |
481 |
server, source_p->name, source_p->username, |
482 |
source_p->host, source_p->from->name); |
483 |
kill_client(source_p->from, source_p, "%s (Server doesn't exist)", me.name); |
484 |
|
485 |
AddFlag(source_p, FLAGS_KILLED); |
486 |
exit_client(source_p, &me, "Ghosted Client"); |
487 |
return; |
488 |
} |
489 |
|
490 |
if ((target_p = source_p->servptr) && target_p->from != source_p->from) |
491 |
{ |
492 |
sendto_realops_flags(UMODE_DEBUG, L_ALL, SEND_NOTICE, |
493 |
"Bad User [%s] :%s USER %s@%s %s, != %s[%s]", |
494 |
source_p->from->name, source_p->name, source_p->username, |
495 |
source_p->host, source_p->servptr->name, |
496 |
target_p->name, target_p->from->name); |
497 |
kill_client(source_p->from, source_p, |
498 |
"%s (NICK from wrong direction (%s != %s))", |
499 |
me.name, source_p->servptr->name, target_p->from->name); |
500 |
AddFlag(source_p, FLAGS_KILLED); |
501 |
exit_client(source_p, &me, "USER server wrong direction"); |
502 |
return; |
503 |
} |
504 |
|
505 |
/* |
506 |
* If the nick has been introduced by a services server, |
507 |
* make it a service as well. |
508 |
*/ |
509 |
if (HasFlag(source_p->servptr, FLAGS_SERVICE)) |
510 |
AddFlag(source_p, FLAGS_SERVICE); |
511 |
|
512 |
/* Increment our total user count here */ |
513 |
if (++Count.total > Count.max_tot) |
514 |
Count.max_tot = Count.total; |
515 |
|
516 |
SetClient(source_p); |
517 |
dlinkAdd(source_p, &source_p->lnode, &source_p->servptr->serv->client_list); |
518 |
add_user_host(source_p->username, source_p->host, 1); |
519 |
SetUserHost(source_p); |
520 |
|
521 |
if (HasFlag(source_p->servptr, FLAGS_EOB)) |
522 |
sendto_realops_flags(UMODE_FARCONNECT, L_ALL, SEND_NOTICE, |
523 |
"Client connecting at %s: %s (%s@%s) [%s] <%s>", |
524 |
source_p->servptr->name, |
525 |
source_p->name, source_p->username, source_p->host, |
526 |
source_p->info, source_p->id); |
527 |
|
528 |
introduce_client(source_p); |
529 |
} |
530 |
|
531 |
/* introduce_client() |
532 |
* |
533 |
* inputs - source_p |
534 |
* output - NONE |
535 |
* side effects - This common function introduces a client to the rest |
536 |
* of the net, either from a local client connect or |
537 |
* from a remote connect. |
538 |
*/ |
539 |
static void |
540 |
introduce_client(struct Client *source_p) |
541 |
{ |
542 |
dlink_node *server_node = NULL; |
543 |
char ubuf[IRCD_BUFSIZE]; |
544 |
|
545 |
if (MyClient(source_p)) |
546 |
send_umode(source_p, source_p, 0, SEND_UMODES, ubuf); |
547 |
else |
548 |
send_umode(NULL, source_p, 0, SEND_UMODES, ubuf); |
549 |
|
550 |
watch_check_hash(source_p, RPL_LOGON); |
551 |
|
552 |
if (ubuf[0] == '\0') |
553 |
{ |
554 |
ubuf[0] = '+'; |
555 |
ubuf[1] = '\0'; |
556 |
} |
557 |
|
558 |
DLINK_FOREACH(server_node, serv_list.head) |
559 |
{ |
560 |
struct Client *server = server_node->data; |
561 |
|
562 |
if (server == source_p->from) |
563 |
continue; |
564 |
|
565 |
if (IsCapable(server, CAP_SVS)) |
566 |
{ |
567 |
if (IsCapable(server, CAP_TS6) && HasID(source_p)) |
568 |
sendto_one(server, ":%s UID %s %d %lu %s %s %s %s %s %s :%s", |
569 |
source_p->servptr->id, |
570 |
source_p->name, source_p->hopcount+1, |
571 |
(unsigned long)source_p->tsinfo, |
572 |
ubuf, source_p->username, source_p->host, |
573 |
(MyClient(source_p) && IsIPSpoof(source_p)) ? |
574 |
"0" : source_p->sockhost, source_p->id, |
575 |
source_p->svid, |
576 |
source_p->info); |
577 |
else |
578 |
sendto_one(server, "NICK %s %d %lu %s %s %s %s %s :%s", |
579 |
source_p->name, source_p->hopcount+1, |
580 |
(unsigned long)source_p->tsinfo, |
581 |
ubuf, source_p->username, source_p->host, |
582 |
source_p->servptr->name, source_p->svid, |
583 |
source_p->info); |
584 |
|
585 |
} |
586 |
else |
587 |
{ |
588 |
if (IsCapable(server, CAP_TS6) && HasID(source_p)) |
589 |
sendto_one(server, ":%s UID %s %d %lu %s %s %s %s %s :%s", |
590 |
source_p->servptr->id, |
591 |
source_p->name, source_p->hopcount+1, |
592 |
(unsigned long)source_p->tsinfo, |
593 |
ubuf, source_p->username, source_p->host, |
594 |
(MyClient(source_p) && IsIPSpoof(source_p)) ? |
595 |
"0" : source_p->sockhost, source_p->id, source_p->info); |
596 |
else |
597 |
sendto_one(server, "NICK %s %d %lu %s %s %s %s :%s", |
598 |
source_p->name, source_p->hopcount+1, |
599 |
(unsigned long)source_p->tsinfo, |
600 |
ubuf, source_p->username, source_p->host, |
601 |
source_p->servptr->name, source_p->info); |
602 |
} |
603 |
|
604 |
if (!EmptyString(source_p->certfp)) |
605 |
sendto_one(server, ":%s CERTFP %s", ID(source_p), source_p->certfp); |
606 |
} |
607 |
} |
608 |
|
609 |
/* valid_hostname() |
610 |
* |
611 |
* Inputs - pointer to hostname |
612 |
* Output - 1 if valid, 0 if not |
613 |
* Side effects - check hostname for validity |
614 |
* |
615 |
* NOTE: this doesn't allow a hostname to begin with a dot and |
616 |
* will not allow more dots than chars. |
617 |
*/ |
618 |
int |
619 |
valid_hostname(const char *hostname) |
620 |
{ |
621 |
const char *p = hostname; |
622 |
|
623 |
assert(p != NULL); |
624 |
|
625 |
if (EmptyString(p) || *p == '.' || *p == ':') |
626 |
return 0; |
627 |
|
628 |
for (; *p; ++p) |
629 |
if (!IsHostChar(*p)) |
630 |
return 0; |
631 |
|
632 |
return p - hostname <= HOSTLEN; |
633 |
} |
634 |
|
635 |
/* valid_username() |
636 |
* |
637 |
* Inputs - pointer to user |
638 |
* Output - 1 if valid, 0 if not |
639 |
* Side effects - check username for validity |
640 |
* |
641 |
* Absolutely always reject any '*' '!' '?' '@' in an user name |
642 |
* reject any odd control characters names. |
643 |
* Allow '.' in username to allow for "first.last" |
644 |
* style of username |
645 |
*/ |
646 |
int |
647 |
valid_username(const char *username, const int local) |
648 |
{ |
649 |
int dots = 0; |
650 |
const char *p = username; |
651 |
|
652 |
assert(p != NULL); |
653 |
|
654 |
if (*p == '~') |
655 |
++p; |
656 |
|
657 |
/* |
658 |
* Reject usernames that don't start with an alphanum |
659 |
* i.e. reject jokers who have '-@somehost' or '.@somehost' |
660 |
* or "-hi-@somehost", "h-----@somehost" would still be accepted. |
661 |
*/ |
662 |
if (!IsAlNum(*p)) |
663 |
return 0; |
664 |
|
665 |
if (local) |
666 |
{ |
667 |
while (*++p) |
668 |
{ |
669 |
if ((*p == '.') && ConfigFileEntry.dots_in_ident) |
670 |
{ |
671 |
if (++dots > ConfigFileEntry.dots_in_ident) |
672 |
return 0; |
673 |
if (!IsUserChar(*(p + 1))) |
674 |
return 0; |
675 |
} |
676 |
else if (!IsUserChar(*p)) |
677 |
return 0; |
678 |
} |
679 |
} |
680 |
else |
681 |
{ |
682 |
while (*++p) |
683 |
if (!IsUserChar(*p)) |
684 |
return 0; |
685 |
} |
686 |
|
687 |
return p - username <= USERLEN;; |
688 |
} |
689 |
|
690 |
/* clean_nick_name() |
691 |
* |
692 |
* input - nickname |
693 |
* - whether it's a local nick (1) or remote (0) |
694 |
* output - none |
695 |
* side effects - walks through the nickname, returning 0 if erroneous |
696 |
*/ |
697 |
int |
698 |
valid_nickname(const char *nickname, const int local) |
699 |
{ |
700 |
const char *p = nickname; |
701 |
assert(nickname && *nickname); |
702 |
|
703 |
/* nicks can't start with a digit or - or be 0 length */ |
704 |
/* This closer duplicates behaviour of hybrid-6 */ |
705 |
if (*p == '-' || (IsDigit(*p) && local) || *p == '\0') |
706 |
return 0; |
707 |
|
708 |
for (; *p; ++p) |
709 |
if (!IsNickChar(*p)) |
710 |
return 0; |
711 |
|
712 |
return p - nickname <= NICKLEN; |
713 |
} |
714 |
|
715 |
/* report_and_set_user_flags() |
716 |
* |
717 |
* inputs - pointer to source_p |
718 |
* - pointer to conf for this user |
719 |
* output - NONE |
720 |
* side effects - Report to user any special flags |
721 |
* they are getting, and set them. |
722 |
*/ |
723 |
static void |
724 |
report_and_set_user_flags(struct Client *source_p, const struct MaskItem *conf) |
725 |
{ |
726 |
/* If this user is being spoofed, tell them so */ |
727 |
if (IsConfDoSpoofIp(conf)) |
728 |
sendto_one_notice(source_p, &me, ":*** Spoofing your IP. Congrats."); |
729 |
|
730 |
/* If this user is in the exception class, Set it "E lined" */ |
731 |
if (IsConfExemptKline(conf)) |
732 |
{ |
733 |
SetExemptKline(source_p); |
734 |
sendto_one_notice(source_p, &me, ":*** You are exempt from K/D/G lines. Congrats."); |
735 |
} |
736 |
|
737 |
/* |
738 |
* The else here is to make sure that G line exempt users |
739 |
* do not get noticed twice. |
740 |
*/ |
741 |
else if (IsConfExemptGline(conf)) |
742 |
{ |
743 |
SetExemptGline(source_p); |
744 |
sendto_one_notice(source_p, &me, ":*** You are exempt from G lines. Congrats."); |
745 |
} |
746 |
|
747 |
if (IsConfExemptResv(conf)) |
748 |
{ |
749 |
SetExemptResv(source_p); |
750 |
sendto_one_notice(source_p, &me, ":*** You are exempt from resvs. Congrats."); |
751 |
} |
752 |
|
753 |
/* If this user is exempt from user limits set it "F lined" */ |
754 |
if (IsConfExemptLimits(conf)) |
755 |
{ |
756 |
SetExemptLimits(source_p); |
757 |
sendto_one_notice(source_p, &me, ":*** You are exempt from user limits. Congrats."); |
758 |
} |
759 |
|
760 |
if (IsConfCanFlood(conf)) |
761 |
{ |
762 |
SetCanFlood(source_p); |
763 |
sendto_one_notice(source_p, &me, ":*** You are exempt from flood " |
764 |
"protection, aren't you fearsome."); |
765 |
} |
766 |
} |
767 |
|
768 |
/* set_user_mode() |
769 |
* |
770 |
* added 15/10/91 By Darren Reed. |
771 |
* parv[0] - sender |
772 |
* parv[1] - username to change mode for |
773 |
* parv[2] - modes to change |
774 |
*/ |
775 |
void |
776 |
set_user_mode(struct Client *client_p, struct Client *source_p, |
777 |
const int parc, char *parv[]) |
778 |
{ |
779 |
unsigned int flag, setflags; |
780 |
char **p, *m, buf[IRCD_BUFSIZE]; |
781 |
struct Client *target_p; |
782 |
int what = MODE_ADD, badflag = 0, i; |
783 |
|
784 |
assert(!(parc < 2)); |
785 |
|
786 |
if ((target_p = find_person(client_p, parv[1])) == NULL) |
787 |
{ |
788 |
if (MyConnect(source_p)) |
789 |
sendto_one_numeric(source_p, &me, ERR_NOSUCHCHANNEL, parv[1]); |
790 |
return; |
791 |
} |
792 |
|
793 |
if (source_p != target_p) |
794 |
{ |
795 |
sendto_one_numeric(source_p, &me, ERR_USERSDONTMATCH); |
796 |
return; |
797 |
} |
798 |
|
799 |
if (parc < 3) |
800 |
{ |
801 |
m = buf; |
802 |
*m++ = '+'; |
803 |
|
804 |
for (i = 0; i < 128; ++i) |
805 |
if (HasUMode(source_p, user_modes[i])) |
806 |
*m++ = (char)i; |
807 |
*m = '\0'; |
808 |
|
809 |
sendto_one_numeric(source_p, &me, RPL_UMODEIS, buf); |
810 |
return; |
811 |
} |
812 |
|
813 |
/* find flags already set for user */ |
814 |
setflags = source_p->umodes; |
815 |
|
816 |
/* parse mode change string(s) */ |
817 |
for (p = &parv[2]; p && *p; ++p) |
818 |
{ |
819 |
for (m = *p; *m; ++m) |
820 |
{ |
821 |
switch (*m) |
822 |
{ |
823 |
case '+': |
824 |
what = MODE_ADD; |
825 |
break; |
826 |
case '-': |
827 |
what = MODE_DEL; |
828 |
break; |
829 |
case 'o': |
830 |
if (what == MODE_ADD) |
831 |
{ |
832 |
if (IsServer(client_p) && !HasUMode(source_p, UMODE_OPER)) |
833 |
{ |
834 |
++Count.oper; |
835 |
SetOper(source_p); |
836 |
} |
837 |
} |
838 |
else |
839 |
{ |
840 |
if (!HasUMode(source_p, UMODE_OPER)) |
841 |
break; |
842 |
|
843 |
ClearOper(source_p); |
844 |
Count.oper--; |
845 |
|
846 |
if (MyConnect(source_p)) |
847 |
{ |
848 |
dlink_node *dm = NULL; |
849 |
|
850 |
detach_conf(source_p, CONF_OPER); |
851 |
ClrOFlag(source_p); |
852 |
DelUMode(source_p, ConfigFileEntry.oper_only_umodes); |
853 |
|
854 |
if ((dm = dlinkFindDelete(&oper_list, source_p)) != NULL) |
855 |
free_dlink_node(dm); |
856 |
} |
857 |
} |
858 |
|
859 |
break; |
860 |
|
861 |
case 'S': /* Only servers may set +S in a burst */ |
862 |
case 'W': /* Only servers may set +W in a burst */ |
863 |
case 'r': /* Only services may set +r */ |
864 |
case 'x': /* Only services may set +x */ |
865 |
break; |
866 |
|
867 |
default: |
868 |
if ((flag = user_modes[(unsigned char)*m])) |
869 |
{ |
870 |
if (MyConnect(source_p) && !HasUMode(source_p, UMODE_OPER) && |
871 |
(ConfigFileEntry.oper_only_umodes & flag)) |
872 |
badflag = 1; |
873 |
else |
874 |
{ |
875 |
if (what == MODE_ADD) |
876 |
AddUMode(source_p, flag); |
877 |
else |
878 |
DelUMode(source_p, flag); |
879 |
} |
880 |
} |
881 |
else if (MyConnect(source_p)) |
882 |
badflag = 1; |
883 |
|
884 |
break; |
885 |
} |
886 |
} |
887 |
} |
888 |
|
889 |
if (badflag) |
890 |
sendto_one_numeric(source_p, &me, ERR_UMODEUNKNOWNFLAG); |
891 |
|
892 |
if (MyConnect(source_p) && HasUMode(source_p, UMODE_ADMIN) && |
893 |
!HasOFlag(source_p, OPER_FLAG_ADMIN)) |
894 |
{ |
895 |
sendto_one_notice(source_p, &me, ":*** You have no admin flag;"); |
896 |
DelUMode(source_p, UMODE_ADMIN); |
897 |
} |
898 |
|
899 |
if (!(setflags & UMODE_INVISIBLE) && HasUMode(source_p, UMODE_INVISIBLE)) |
900 |
++Count.invisi; |
901 |
if ((setflags & UMODE_INVISIBLE) && !HasUMode(source_p, UMODE_INVISIBLE)) |
902 |
--Count.invisi; |
903 |
|
904 |
/* |
905 |
* compare new flags with old flags and send string which |
906 |
* will cause servers to update correctly. |
907 |
*/ |
908 |
send_umode_out(client_p, source_p, setflags); |
909 |
} |
910 |
|
911 |
/* send_umode() |
912 |
* send the MODE string for user (user) to connection client_p |
913 |
* -avalon |
914 |
* |
915 |
* inputs - client_p |
916 |
* - source_p |
917 |
* - int old |
918 |
* - sendmask mask of modes to send |
919 |
* - suplied umode_buf |
920 |
* output - NONE |
921 |
*/ |
922 |
void |
923 |
send_umode(struct Client *client_p, struct Client *source_p, |
924 |
unsigned int old, unsigned int sendmask, char *umode_buf) |
925 |
{ |
926 |
char *m = umode_buf; |
927 |
int what = 0; |
928 |
unsigned int i; |
929 |
unsigned int flag; |
930 |
|
931 |
/* |
932 |
* build a string in umode_buf to represent the change in the user's |
933 |
* mode between the new (source_p->umodes) and 'old'. |
934 |
*/ |
935 |
for (i = 0; i < 128; ++i) |
936 |
{ |
937 |
flag = user_modes[i]; |
938 |
if (!flag) |
939 |
continue; |
940 |
|
941 |
if (MyClient(source_p) && !(flag & sendmask)) |
942 |
continue; |
943 |
|
944 |
if ((flag & old) && !HasUMode(source_p, flag)) |
945 |
{ |
946 |
if (what == MODE_DEL) |
947 |
*m++ = (char)i; |
948 |
else |
949 |
{ |
950 |
what = MODE_DEL; |
951 |
*m++ = '-'; |
952 |
*m++ = (char)i; |
953 |
} |
954 |
} |
955 |
else if (!(flag & old) && HasUMode(source_p, flag)) |
956 |
{ |
957 |
if (what == MODE_ADD) |
958 |
*m++ = (char)i; |
959 |
else |
960 |
{ |
961 |
what = MODE_ADD; |
962 |
*m++ = '+'; |
963 |
*m++ = (char)i; |
964 |
} |
965 |
} |
966 |
} |
967 |
|
968 |
*m = '\0'; |
969 |
|
970 |
if (*umode_buf && client_p) |
971 |
sendto_one(client_p, ":%s!%s@%s MODE %s :%s", |
972 |
source_p->name, source_p->username, |
973 |
source_p->host, source_p->name, umode_buf); |
974 |
} |
975 |
|
976 |
/* send_umode_out() |
977 |
* |
978 |
* inputs - |
979 |
* output - NONE |
980 |
* side effects - Only send ubuf out to servers that know about this client |
981 |
*/ |
982 |
void |
983 |
send_umode_out(struct Client *client_p, struct Client *source_p, |
984 |
unsigned int old) |
985 |
{ |
986 |
char buf[IRCD_BUFSIZE] = { '\0' }; |
987 |
dlink_node *ptr = NULL; |
988 |
|
989 |
send_umode(NULL, source_p, old, SEND_UMODES, buf); |
990 |
|
991 |
if (buf[0]) |
992 |
{ |
993 |
DLINK_FOREACH(ptr, serv_list.head) |
994 |
{ |
995 |
struct Client *target_p = ptr->data; |
996 |
|
997 |
if ((target_p != client_p) && (target_p != source_p)) |
998 |
sendto_one(target_p, ":%s MODE %s :%s", |
999 |
ID_or_name(source_p, target_p), |
1000 |
ID_or_name(source_p, target_p), buf); |
1001 |
} |
1002 |
} |
1003 |
|
1004 |
if (client_p && MyClient(client_p)) |
1005 |
send_umode(client_p, source_p, old, 0xffffffff, buf); |
1006 |
} |
1007 |
|
1008 |
void |
1009 |
user_set_hostmask(struct Client *target_p, const char *hostname, const int what) |
1010 |
{ |
1011 |
dlink_node *ptr = NULL; |
1012 |
|
1013 |
if (!strcmp(target_p->host, hostname)) |
1014 |
return; |
1015 |
|
1016 |
switch (what) |
1017 |
{ |
1018 |
case MODE_ADD: |
1019 |
AddUMode(target_p, UMODE_HIDDENHOST); |
1020 |
AddFlag(target_p, FLAGS_IP_SPOOFING); |
1021 |
break; |
1022 |
case MODE_DEL: |
1023 |
DelUMode(target_p, UMODE_HIDDENHOST); |
1024 |
|
1025 |
if (!HasFlag(target_p, FLAGS_AUTH_SPOOF)) |
1026 |
DelFlag(target_p, FLAGS_IP_SPOOFING); |
1027 |
break; |
1028 |
default: return; |
1029 |
} |
1030 |
|
1031 |
if (ConfigFileEntry.cycle_on_host_change) |
1032 |
sendto_common_channels_local(target_p, 0, 0, ":%s!%s@%s QUIT :Changing hostname", |
1033 |
target_p->name, target_p->username, target_p->host); |
1034 |
|
1035 |
if (IsUserHostIp(target_p)) |
1036 |
delete_user_host(target_p->username, target_p->host, !MyConnect(target_p)); |
1037 |
|
1038 |
strlcpy(target_p->host, hostname, sizeof(target_p->host)); |
1039 |
|
1040 |
add_user_host(target_p->username, target_p->host, !MyConnect(target_p)); |
1041 |
SetUserHost(target_p); |
1042 |
|
1043 |
if (MyClient(target_p)) |
1044 |
{ |
1045 |
sendto_one_numeric(target_p, &me, RPL_NEWHOSTIS, target_p->host); |
1046 |
clear_ban_cache_client(target_p); |
1047 |
} |
1048 |
|
1049 |
if (!ConfigFileEntry.cycle_on_host_change) |
1050 |
return; |
1051 |
|
1052 |
DLINK_FOREACH(ptr, target_p->channel.head) |
1053 |
{ |
1054 |
char modebuf[4], nickbuf[NICKLEN * 3 + 3] = { '\0' }; |
1055 |
char *p = modebuf; |
1056 |
int len = 0; |
1057 |
const struct Membership *ms = ptr->data; |
1058 |
|
1059 |
if (has_member_flags(ms, CHFL_CHANOP)) |
1060 |
{ |
1061 |
*p++ = 'o'; |
1062 |
len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", target_p->name); |
1063 |
} |
1064 |
|
1065 |
if (has_member_flags(ms, CHFL_HALFOP)) |
1066 |
{ |
1067 |
*p++ = 'h'; |
1068 |
len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", target_p->name); |
1069 |
} |
1070 |
|
1071 |
if (has_member_flags(ms, CHFL_VOICE)) |
1072 |
{ |
1073 |
*p++ = 'v'; |
1074 |
len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", target_p->name); |
1075 |
} |
1076 |
|
1077 |
*p = '\0'; |
1078 |
|
1079 |
sendto_channel_local_butone(target_p, 0, 0, ms->chptr, ":%s!%s@%s JOIN :%s", |
1080 |
target_p->name, target_p->username, target_p->host, |
1081 |
ms->chptr->chname); |
1082 |
if (nickbuf[0]) |
1083 |
sendto_channel_local_butone(target_p, 0, 0, ms->chptr, ":%s MODE %s +%s %s", |
1084 |
target_p->servptr->name, ms->chptr->chname, |
1085 |
modebuf, nickbuf); |
1086 |
|
1087 |
} |
1088 |
|
1089 |
if (target_p->away[0]) |
1090 |
sendto_common_channels_local(target_p, 0, CAP_AWAY_NOTIFY, |
1091 |
":%s!%s@%s AWAY :%s", |
1092 |
target_p->name, target_p->username, |
1093 |
target_p->host, target_p->away); |
1094 |
} |
1095 |
|
1096 |
/* user_welcome() |
1097 |
* |
1098 |
* inputs - client pointer to client to welcome |
1099 |
* output - NONE |
1100 |
* side effects - |
1101 |
*/ |
1102 |
static void |
1103 |
user_welcome(struct Client *source_p) |
1104 |
{ |
1105 |
#if defined(__TIME__) && defined(__DATE__) |
1106 |
static const char built_date[] = __DATE__ " at " __TIME__; |
1107 |
#else |
1108 |
static const char built_date[] = "unknown"; |
1109 |
#endif |
1110 |
|
1111 |
#ifdef HAVE_LIBCRYPTO |
1112 |
if (HasFlag(source_p, FLAGS_SSL)) |
1113 |
{ |
1114 |
AddUMode(source_p, UMODE_SSL); |
1115 |
sendto_one_notice(source_p, &me, ":*** Connected securely via %s", |
1116 |
ssl_get_cipher(source_p->localClient->fd.ssl)); |
1117 |
} |
1118 |
#endif |
1119 |
|
1120 |
sendto_one_numeric(source_p, &me, RPL_WELCOME, ServerInfo.network_name, |
1121 |
source_p->name); |
1122 |
sendto_one_numeric(source_p, &me, RPL_YOURHOST, |
1123 |
get_listener_name(source_p->localClient->listener), ircd_version); |
1124 |
sendto_one_numeric(source_p, &me, RPL_CREATED, built_date); |
1125 |
sendto_one_numeric(source_p, &me, RPL_MYINFO, me.name, ircd_version, umode_buffer); |
1126 |
show_isupport(source_p); |
1127 |
|
1128 |
if (source_p->id[0] != '\0') |
1129 |
sendto_one_numeric(source_p, &me, RPL_YOURID, source_p->id); |
1130 |
|
1131 |
show_lusers(source_p); |
1132 |
motd_signon(source_p); |
1133 |
} |
1134 |
|
1135 |
/* check_xline() |
1136 |
* |
1137 |
* inputs - pointer to client to test |
1138 |
* outupt - 1 if exiting 0 if ok |
1139 |
* side effects - |
1140 |
*/ |
1141 |
static int |
1142 |
check_xline(struct Client *source_p) |
1143 |
{ |
1144 |
struct MaskItem *conf = NULL; |
1145 |
const char *reason = NULL; |
1146 |
|
1147 |
if ((conf = find_matching_name_conf(CONF_XLINE, source_p->info, NULL, NULL, 0))) |
1148 |
{ |
1149 |
++conf->count; |
1150 |
|
1151 |
if (conf->reason != NULL) |
1152 |
reason = conf->reason; |
1153 |
else |
1154 |
reason = "No Reason"; |
1155 |
|
1156 |
sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE, |
1157 |
"X-line Rejecting [%s] [%s], user %s [%s]", |
1158 |
source_p->info, reason, |
1159 |
get_client_name(source_p, HIDE_IP), |
1160 |
source_p->sockhost); |
1161 |
|
1162 |
++ServerStats.is_ref; |
1163 |
exit_client(source_p, &me, "Bad user info"); |
1164 |
return 1; |
1165 |
} |
1166 |
|
1167 |
return 0; |
1168 |
} |
1169 |
|
1170 |
/* oper_up() |
1171 |
* |
1172 |
* inputs - pointer to given client to oper |
1173 |
* output - NONE |
1174 |
* side effects - Blindly opers up given source_p, using conf info |
1175 |
* all checks on passwords have already been done. |
1176 |
* This could also be used by rsa oper routines. |
1177 |
*/ |
1178 |
void |
1179 |
oper_up(struct Client *source_p) |
1180 |
{ |
1181 |
const unsigned int old = source_p->umodes; |
1182 |
const struct MaskItem *conf = source_p->localClient->confs.head->data; |
1183 |
|
1184 |
assert(source_p->localClient->confs.head); |
1185 |
|
1186 |
++Count.oper; |
1187 |
SetOper(source_p); |
1188 |
|
1189 |
if (conf->modes) |
1190 |
AddUMode(source_p, conf->modes); |
1191 |
else if (ConfigFileEntry.oper_umodes) |
1192 |
AddUMode(source_p, ConfigFileEntry.oper_umodes); |
1193 |
|
1194 |
if (!(old & UMODE_INVISIBLE) && HasUMode(source_p, UMODE_INVISIBLE)) |
1195 |
++Count.invisi; |
1196 |
if ((old & UMODE_INVISIBLE) && !HasUMode(source_p, UMODE_INVISIBLE)) |
1197 |
--Count.invisi; |
1198 |
|
1199 |
assert(dlinkFind(&oper_list, source_p) == NULL); |
1200 |
dlinkAdd(source_p, make_dlink_node(), &oper_list); |
1201 |
|
1202 |
AddOFlag(source_p, conf->port); |
1203 |
|
1204 |
if (HasOFlag(source_p, OPER_FLAG_ADMIN)) |
1205 |
AddUMode(source_p, UMODE_ADMIN); |
1206 |
|
1207 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, "%s is now an operator", |
1208 |
get_oper_name(source_p)); |
1209 |
send_umode_out(source_p, source_p, old); |
1210 |
sendto_one_numeric(source_p, &me, RPL_YOUREOPER); |
1211 |
} |
1212 |
|
1213 |
static char new_uid[TOTALSIDUID + 1]; /* allow for \0 */ |
1214 |
|
1215 |
int |
1216 |
valid_sid(const char *sid) |
1217 |
{ |
1218 |
if (strlen(sid) == IRC_MAXSID) |
1219 |
if (IsDigit(*sid)) |
1220 |
if (IsAlNum(*(sid + 1)) && IsAlNum(*(sid + 2))) |
1221 |
return 1; |
1222 |
|
1223 |
return 0; |
1224 |
} |
1225 |
|
1226 |
/* |
1227 |
* init_uid() |
1228 |
* |
1229 |
* inputs - NONE |
1230 |
* output - NONE |
1231 |
* side effects - new_uid is filled in with server id portion (sid) |
1232 |
* (first 3 bytes) or defaulted to 'A'. |
1233 |
* Rest is filled in with 'A' |
1234 |
*/ |
1235 |
void |
1236 |
init_uid(void) |
1237 |
{ |
1238 |
unsigned int i; |
1239 |
|
1240 |
memset(new_uid, 0, sizeof(new_uid)); |
1241 |
|
1242 |
if (!EmptyString(ServerInfo.sid)) |
1243 |
strlcpy(new_uid, ServerInfo.sid, sizeof(new_uid)); |
1244 |
|
1245 |
for (i = 0; i < IRC_MAXSID; ++i) |
1246 |
if (new_uid[i] == '\0') |
1247 |
new_uid[i] = 'A'; |
1248 |
|
1249 |
/* NOTE: if IRC_MAXUID != 6, this will have to be rewritten */ |
1250 |
memcpy(new_uid + IRC_MAXSID, "AAAAA@", IRC_MAXUID); |
1251 |
} |
1252 |
|
1253 |
/* |
1254 |
* add_one_to_uid |
1255 |
* |
1256 |
* inputs - index number into new_uid |
1257 |
* output - NONE |
1258 |
* side effects - new_uid is incremented by one |
1259 |
* note this is a recursive function |
1260 |
*/ |
1261 |
static void |
1262 |
add_one_to_uid(int i) |
1263 |
{ |
1264 |
if (i != IRC_MAXSID) /* Not reached server SID portion yet? */ |
1265 |
{ |
1266 |
if (new_uid[i] == 'Z') |
1267 |
new_uid[i] = '0'; |
1268 |
else if (new_uid[i] == '9') |
1269 |
{ |
1270 |
new_uid[i] = 'A'; |
1271 |
add_one_to_uid(i-1); |
1272 |
} |
1273 |
else |
1274 |
++new_uid[i]; |
1275 |
} |
1276 |
else |
1277 |
{ |
1278 |
/* NOTE: if IRC_MAXUID != 6, this will have to be rewritten */ |
1279 |
if (new_uid[i] == 'Z') |
1280 |
memcpy(new_uid + IRC_MAXSID, "AAAAAA", IRC_MAXUID); |
1281 |
else |
1282 |
++new_uid[i]; |
1283 |
} |
1284 |
} |
1285 |
|
1286 |
/* |
1287 |
* uid_get |
1288 |
* |
1289 |
* inputs - struct Client * |
1290 |
* output - new UID is returned to caller |
1291 |
* side effects - new_uid is incremented by one. |
1292 |
*/ |
1293 |
static const char * |
1294 |
uid_get(void) |
1295 |
{ |
1296 |
add_one_to_uid(TOTALSIDUID - 1); /* index from 0 */ |
1297 |
return new_uid; |
1298 |
} |
1299 |
|
1300 |
/* |
1301 |
* init_isupport() |
1302 |
* |
1303 |
* input - NONE |
1304 |
* output - NONE |
1305 |
* side effects - Must be called before isupport is enabled |
1306 |
*/ |
1307 |
void |
1308 |
init_isupport(void) |
1309 |
{ |
1310 |
add_isupport("CALLERID", NULL, -1); |
1311 |
add_isupport("CASEMAPPING", CASEMAP, -1); |
1312 |
add_isupport("DEAF", "D", -1); |
1313 |
add_isupport("KICKLEN", NULL, KICKLEN); |
1314 |
add_isupport("MODES", NULL, MAXMODEPARAMS); |
1315 |
#ifdef HALFOPS |
1316 |
add_isupport("PREFIX", "(ohv)@%+", -1); |
1317 |
add_isupport("STATUSMSG", "@%+", -1); |
1318 |
#else |
1319 |
add_isupport("PREFIX", "(ov)@+", -1); |
1320 |
add_isupport("STATUSMSG", "@+", -1); |
1321 |
#endif |
1322 |
add_isupport("EXCEPTS", "e", -1); |
1323 |
add_isupport("INVEX", "I", -1); |
1324 |
} |
1325 |
|
1326 |
/* |
1327 |
* add_isupport() |
1328 |
* |
1329 |
* input - name of supported function |
1330 |
* - options if any |
1331 |
* - number if any |
1332 |
* output - NONE |
1333 |
* side effects - Each supported item must call this when activated |
1334 |
*/ |
1335 |
void |
1336 |
add_isupport(const char *name, const char *options, int n) |
1337 |
{ |
1338 |
dlink_node *ptr; |
1339 |
struct Isupport *support; |
1340 |
|
1341 |
DLINK_FOREACH(ptr, support_list.head) |
1342 |
{ |
1343 |
support = ptr->data; |
1344 |
if (irccmp(support->name, name) == 0) |
1345 |
{ |
1346 |
MyFree(support->name); |
1347 |
MyFree(support->options); |
1348 |
break; |
1349 |
} |
1350 |
} |
1351 |
|
1352 |
if (ptr == NULL) |
1353 |
{ |
1354 |
support = MyMalloc(sizeof(*support)); |
1355 |
dlinkAddTail(support, &support->node, &support_list); |
1356 |
} |
1357 |
|
1358 |
support->name = xstrdup(name); |
1359 |
if (options != NULL) |
1360 |
support->options = xstrdup(options); |
1361 |
support->number = n; |
1362 |
|
1363 |
rebuild_isupport_message_line(); |
1364 |
} |
1365 |
|
1366 |
/* |
1367 |
* delete_isupport() |
1368 |
* |
1369 |
* input - name of supported function |
1370 |
* output - NONE |
1371 |
* side effects - Each supported item must call this when deactivated |
1372 |
*/ |
1373 |
void |
1374 |
delete_isupport(const char *name) |
1375 |
{ |
1376 |
dlink_node *ptr; |
1377 |
struct Isupport *support; |
1378 |
|
1379 |
DLINK_FOREACH(ptr, support_list.head) |
1380 |
{ |
1381 |
support = ptr->data; |
1382 |
if (irccmp(support->name, name) == 0) |
1383 |
{ |
1384 |
dlinkDelete(ptr, &support_list); |
1385 |
MyFree(support->name); |
1386 |
MyFree(support->options); |
1387 |
MyFree(support); |
1388 |
break; |
1389 |
} |
1390 |
} |
1391 |
|
1392 |
rebuild_isupport_message_line(); |
1393 |
} |
1394 |
|
1395 |
/* |
1396 |
* rebuild_isupport_message_line |
1397 |
* |
1398 |
* input - NONE |
1399 |
* output - NONE |
1400 |
* side effects - Destroy the isupport MessageFile lines, and rebuild. |
1401 |
*/ |
1402 |
void |
1403 |
rebuild_isupport_message_line(void) |
1404 |
{ |
1405 |
char isupportbuffer[IRCD_BUFSIZE]; |
1406 |
char *p = isupportbuffer; |
1407 |
dlink_node *ptr = NULL, *ptr_next = NULL; |
1408 |
int n = 0; |
1409 |
int tokens = 0; |
1410 |
size_t len = 0; |
1411 |
size_t reserve = strlen(me.name) + HOSTLEN + strlen(numeric_form(RPL_ISUPPORT)); |
1412 |
|
1413 |
DLINK_FOREACH_SAFE(ptr, ptr_next, support_list_lines.head) |
1414 |
{ |
1415 |
dlinkDelete(ptr, &support_list_lines); |
1416 |
MyFree(ptr->data); |
1417 |
free_dlink_node(ptr); |
1418 |
} |
1419 |
|
1420 |
DLINK_FOREACH(ptr, support_list.head) |
1421 |
{ |
1422 |
struct Isupport *support = ptr->data; |
1423 |
|
1424 |
p += (n = sprintf(p, "%s", support->name)); |
1425 |
len += n; |
1426 |
|
1427 |
if (support->options != NULL) |
1428 |
{ |
1429 |
p += (n = sprintf(p, "=%s", support->options)); |
1430 |
len += n; |
1431 |
} |
1432 |
|
1433 |
if (support->number > 0) |
1434 |
{ |
1435 |
p += (n = sprintf(p, "=%d", support->number)); |
1436 |
len += n; |
1437 |
} |
1438 |
|
1439 |
*p++ = ' '; |
1440 |
len++; |
1441 |
*p = '\0'; |
1442 |
|
1443 |
if (++tokens == (MAXPARA-2) || len >= (sizeof(isupportbuffer)-reserve)) |
1444 |
{ /* arbritrary for now */ |
1445 |
if (*--p == ' ') |
1446 |
*p = '\0'; |
1447 |
|
1448 |
dlinkAddTail(xstrdup(isupportbuffer), make_dlink_node(), &support_list_lines); |
1449 |
p = isupportbuffer; |
1450 |
len = 0; |
1451 |
n = tokens = 0; |
1452 |
} |
1453 |
} |
1454 |
|
1455 |
if (len != 0) |
1456 |
{ |
1457 |
if (*--p == ' ') |
1458 |
*p = '\0'; |
1459 |
dlinkAddTail(xstrdup(isupportbuffer), make_dlink_node(), &support_list_lines); |
1460 |
} |
1461 |
} |