| 1 |
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/* |
| 2 |
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* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd) |
| 3 |
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* |
| 4 |
< |
* Copyright (c) 1997-2014 ircd-hybrid development team |
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> |
* Copyright (c) 1997-2018 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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* |
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* You should have received a copy of the GNU General Public License |
| 17 |
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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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> |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 |
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* USA |
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*/ |
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|
| 29 |
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#include "parse.h" |
| 30 |
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#include "channel.h" |
| 31 |
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#include "hash.h" |
| 32 |
+ |
#include "id.h" |
| 33 |
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#include "irc_string.h" |
| 34 |
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#include "ircd.h" |
| 35 |
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#include "numeric.h" |
| 73 |
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* Diane Bruce (Dianora), June 6 2003 |
| 74 |
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*/ |
| 75 |
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|
| 76 |
< |
#define MAXPTRLEN 32 |
| 77 |
< |
/* Must be a power of 2, and |
| 78 |
< |
* larger than 26 [a-z]|[A-Z] |
| 79 |
< |
* its used to allocate the set |
| 80 |
< |
* of pointers at each node of the tree |
| 81 |
< |
* There are MAXPTRLEN pointers at each node. |
| 82 |
< |
* Obviously, there have to be more pointers |
| 83 |
< |
* Than ASCII letters. 32 is a nice number |
| 84 |
< |
* since there is then no need to shift |
| 85 |
< |
* 'A'/'a' to base 0 index, at the expense |
| 86 |
< |
* of a few never used pointers. For a small |
| 86 |
< |
* parser like this, this is a good compromise |
| 87 |
< |
* and does make it somewhat faster. |
| 88 |
< |
* |
| 89 |
< |
* - Dianora |
| 90 |
< |
*/ |
| 76 |
> |
/* |
| 77 |
> |
* Must be a power of 2, and larger than 26 [a-z]|[A-Z]. It's used to allocate |
| 78 |
> |
* the set of pointers at each node of the tree. |
| 79 |
> |
* There are MAXPTRLEN pointers at each node. Obviously, there have to be more |
| 80 |
> |
* pointers than ASCII letters. 32 is a nice number since there is then no need |
| 81 |
> |
* to shift 'A'/'a' to base 0 index, at the expense of a few never used |
| 82 |
> |
* pointers. |
| 83 |
> |
* For a small parser like this, this is a good compromise and does |
| 84 |
> |
* make it somewhat faster. - Dianora |
| 85 |
> |
*/ |
| 86 |
> |
enum { MAXPTRLEN = 32 }; |
| 87 |
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|
| 88 |
< |
struct MessageTree |
| 88 |
> |
|
| 89 |
> |
static struct MessageTree |
| 90 |
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{ |
| 91 |
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int links; /* Count of all pointers (including msg) at this node |
| 92 |
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* used as reference count for deletion of _this_ node. |
| 93 |
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*/ |
| 94 |
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struct Message *msg; |
| 95 |
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struct MessageTree *pointers[MAXPTRLEN]; |
| 96 |
< |
}; |
| 96 |
> |
} msg_tree; |
| 97 |
> |
|
| 98 |
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|
| 99 |
< |
static struct MessageTree msg_tree; |
| 99 |
> |
/* remove_unknown() |
| 100 |
> |
* |
| 101 |
> |
* inputs - |
| 102 |
> |
* output - |
| 103 |
> |
* side effects - |
| 104 |
> |
*/ |
| 105 |
> |
static void |
| 106 |
> |
parse_remove_unknown(struct Client *client_p, const char *lsender, char *lbuffer) |
| 107 |
> |
{ |
| 108 |
> |
/* |
| 109 |
> |
* Do kill if it came from a server because it means there is a ghost |
| 110 |
> |
* user on the other server which needs to be removed. -avalon |
| 111 |
> |
* Tell opers about this. -Taner |
| 112 |
> |
*/ |
| 113 |
> |
/* |
| 114 |
> |
* '[0-9]something' is an ID (KILL/SQUIT depending on its length) |
| 115 |
> |
* 'nodots' is a nickname (KILL) |
| 116 |
> |
* 'no.dot.at.start' is a server (SQUIT) |
| 117 |
> |
*/ |
| 118 |
> |
if ((IsDigit(*lsender) && strlen(lsender) <= IRC_MAXSID) || strchr(lsender, '.')) |
| 119 |
> |
{ |
| 120 |
> |
sendto_realops_flags(UMODE_DEBUG, L_ADMIN, SEND_NOTICE, |
| 121 |
> |
"Unknown prefix (%s) from %s, Squitting %s", |
| 122 |
> |
lbuffer, client_get_name(client_p, SHOW_IP), lsender); |
| 123 |
> |
sendto_realops_flags(UMODE_DEBUG, L_OPER, SEND_NOTICE, |
| 124 |
> |
"Unknown prefix (%s) from %s, Squitting %s", |
| 125 |
> |
lbuffer, client_get_name(client_p, MASK_IP), lsender); |
| 126 |
> |
sendto_one(client_p, ":%s SQUIT %s :(Unknown prefix (%s) from %s)", |
| 127 |
> |
me.id, lsender, lbuffer, client_p->name); |
| 128 |
> |
} |
| 129 |
> |
else |
| 130 |
> |
sendto_one(client_p, ":%s KILL %s :%s (Unknown Client)", |
| 131 |
> |
me.id, lsender, me.name); |
| 132 |
> |
} |
| 133 |
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|
| 134 |
< |
static void cancel_clients(struct Client *, struct Client *, char *); |
| 135 |
< |
static void remove_unknown(struct Client *, char *, char *); |
| 136 |
< |
static void handle_numeric(unsigned int, struct Client *, int, char *[]); |
| 137 |
< |
static void handle_command(struct Message *, struct Client *, unsigned int, char *[]); |
| 134 |
> |
/* |
| 135 |
> |
* |
| 136 |
> |
* parc number of arguments ('sender' counted as one!) |
| 137 |
> |
* parv[0] pointer to 'sender' (may point to empty string) (not used) |
| 138 |
> |
* parv[1]..parv[parc-1] |
| 139 |
> |
* pointers to additional parameters, this is a NULL |
| 140 |
> |
* terminated list (parv[parc] == NULL). |
| 141 |
> |
* |
| 142 |
> |
* *WARNING* |
| 143 |
> |
* Numerics are mostly error reports. If there is something |
| 144 |
> |
* wrong with the message, just *DROP* it! Don't even think of |
| 145 |
> |
* sending back a neat error message -- big danger of creating |
| 146 |
> |
* a ping pong error message... |
| 147 |
> |
* |
| 148 |
> |
* Rewritten by Nemesi, Jan 1999, to support numeric nicks in parv[1] |
| 149 |
> |
* |
| 150 |
> |
* Called when we get a numeric message from a remote _server_ and we are |
| 151 |
> |
* supposed to forward it somewhere. Note that we always ignore numerics sent |
| 152 |
> |
* to 'me' and simply drop the message if we can't handle with this properly: |
| 153 |
> |
* the savvy approach is NEVER generate an error in response to an... error :) |
| 154 |
> |
*/ |
| 155 |
> |
static void |
| 156 |
> |
parse_handle_numeric(unsigned int numeric, struct Client *source_p, int parc, char *parv[]) |
| 157 |
> |
{ |
| 158 |
> |
struct Client *target_p = NULL; |
| 159 |
> |
struct Channel *chptr = NULL; |
| 160 |
|
|
| 161 |
+ |
/* |
| 162 |
+ |
* Avoid trash, we need it to come from a server and have a target |
| 163 |
+ |
*/ |
| 164 |
+ |
if (parc < 2 || !IsServer(source_p)) |
| 165 |
+ |
return; |
| 166 |
+ |
|
| 167 |
+ |
/* |
| 168 |
+ |
* Who should receive this message ? Will we do something with it ? |
| 169 |
+ |
* Note that we use findUser functions, so the target can't be neither |
| 170 |
+ |
* a server, nor a channel (?) nor a list of targets (?) .. u2.10 |
| 171 |
+ |
* should never generate numeric replies to non-users anyway |
| 172 |
+ |
* Ahem... it can be a channel actually, csc bots use it :\ --Nem |
| 173 |
+ |
*/ |
| 174 |
+ |
if (IsChanPrefix(*parv[1])) |
| 175 |
+ |
chptr = hash_find_channel(parv[1]); |
| 176 |
+ |
else |
| 177 |
+ |
target_p = find_person(source_p, parv[1]); |
| 178 |
+ |
|
| 179 |
+ |
if ((!target_p || target_p->from == source_p->from) && !chptr) |
| 180 |
+ |
return; |
| 181 |
+ |
|
| 182 |
+ |
/* |
| 183 |
+ |
* Remap low number numerics, not that I understand WHY.. --Nemesi |
| 184 |
+ |
*/ |
| 185 |
+ |
/* |
| 186 |
+ |
* Numerics below 100 talk about the current 'connection', you're not |
| 187 |
+ |
* connected to a remote server so it doesn't make sense to send them |
| 188 |
+ |
* remotely - but the information they contain may be useful, so we |
| 189 |
+ |
* remap them up. Weird, but true. -- Isomer |
| 190 |
+ |
*/ |
| 191 |
+ |
if (numeric < 100) |
| 192 |
+ |
numeric += 100; |
| 193 |
+ |
|
| 194 |
+ |
if (target_p) |
| 195 |
+ |
{ |
| 196 |
+ |
/* Fake it for server hiding, if it's our client */ |
| 197 |
+ |
if ((ConfigServerHide.hide_servers || IsHidden(source_p)) && MyConnect(target_p) && |
| 198 |
+ |
!HasUMode(target_p, UMODE_OPER)) |
| 199 |
+ |
sendto_one_numeric(target_p, &me, numeric | SND_EXPLICIT, "%s", parv[2]); |
| 200 |
+ |
else |
| 201 |
+ |
sendto_one_numeric(target_p, source_p, numeric | SND_EXPLICIT, "%s", parv[2]); |
| 202 |
+ |
} |
| 203 |
+ |
else |
| 204 |
+ |
sendto_channel_butone(source_p, source_p, chptr, 0, "%u %s %s", |
| 205 |
+ |
numeric, chptr->name, parv[2]); |
| 206 |
+ |
} |
| 207 |
+ |
|
| 208 |
+ |
/* handle_command() |
| 209 |
+ |
* |
| 210 |
+ |
* inputs - pointer to message block |
| 211 |
+ |
* - pointer to client |
| 212 |
+ |
* - pointer to client message is from |
| 213 |
+ |
* - count of number of args |
| 214 |
+ |
* - pointer to argv[] array |
| 215 |
+ |
* output - -1 if error from server |
| 216 |
+ |
* side effects - |
| 217 |
+ |
*/ |
| 218 |
+ |
static void |
| 219 |
+ |
parse_handle_command(struct Message *message, struct Client *source_p, |
| 220 |
+ |
unsigned int i, char *para[]) |
| 221 |
+ |
{ |
| 222 |
+ |
if (IsServer(source_p->from)) |
| 223 |
+ |
++message->rcount; |
| 224 |
+ |
|
| 225 |
+ |
++message->count; |
| 226 |
+ |
|
| 227 |
+ |
/* Check right amount of parameters is passed... --is */ |
| 228 |
+ |
if (i < message->args_min) |
| 229 |
+ |
sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, message->cmd); |
| 230 |
+ |
else |
| 231 |
+ |
message->handlers[source_p->from->handler](source_p, i, para); |
| 232 |
+ |
} |
| 233 |
|
|
| 234 |
|
/* |
| 235 |
|
* parse a buffer. |
| 240 |
|
parse(struct Client *client_p, char *pbuffer, char *bufend) |
| 241 |
|
{ |
| 242 |
|
struct Client *from = client_p; |
| 243 |
< |
struct Message *msg_ptr = NULL; |
| 243 |
> |
struct Message *message = NULL; |
| 244 |
|
char *para[MAXPARA + 2]; /* <command> + <parameters> + NULL */ |
| 245 |
|
char *ch = NULL; |
| 246 |
|
char *s = NULL; |
| 251 |
|
if (IsDefunct(client_p)) |
| 252 |
|
return; |
| 253 |
|
|
| 254 |
< |
assert(client_p->localClient->fd.flags.open); |
| 254 |
> |
assert(client_p->connection); |
| 255 |
> |
assert(client_p->connection->fd); |
| 256 |
> |
assert(client_p->connection->fd->flags.open); |
| 257 |
> |
|
| 258 |
> |
|
| 259 |
|
assert((bufend - pbuffer) < IRCD_BUFSIZE); |
| 260 |
|
|
| 261 |
|
for (ch = pbuffer; *ch == ' '; ++ch) /* Skip spaces */ |
| 267 |
|
* Copy the prefix to 'sender' assuming it terminates |
| 268 |
|
* with SPACE (or NULL, which is an error, though). |
| 269 |
|
*/ |
| 270 |
< |
char *sender = ++ch; |
| 270 |
> |
const char *const sender = ++ch; |
| 271 |
|
|
| 272 |
|
if ((s = strchr(ch, ' '))) |
| 273 |
|
{ |
| 277 |
|
|
| 278 |
|
if (*sender && IsServer(client_p)) |
| 279 |
|
{ |
| 280 |
< |
if ((from = find_person(client_p, sender)) == NULL) |
| 281 |
< |
from = hash_find_server(sender); |
| 280 |
> |
if ((from = hash_find_id(sender)) == NULL) |
| 281 |
> |
from = hash_find_client(sender); |
| 282 |
|
|
| 283 |
|
/* |
| 284 |
|
* Hmm! If the client corresponding to the prefix is not found--what is |
| 288 |
|
if (from == NULL) |
| 289 |
|
{ |
| 290 |
|
++ServerStats.is_unpf; |
| 291 |
< |
remove_unknown(client_p, sender, pbuffer); |
| 291 |
> |
parse_remove_unknown(client_p, sender, pbuffer); |
| 292 |
|
return; |
| 293 |
|
} |
| 294 |
|
|
| 295 |
|
if (from->from != client_p) |
| 296 |
|
{ |
| 297 |
|
++ServerStats.is_wrdi; |
| 298 |
< |
cancel_clients(client_p, from, pbuffer); |
| 298 |
> |
sendto_realops_flags(UMODE_DEBUG, L_ADMIN, SEND_NOTICE, |
| 299 |
> |
"Fake direction: dropped message from %s[%s] via %s", |
| 300 |
> |
from->name, from->from->name, |
| 301 |
> |
client_get_name(client_p, SHOW_IP)); |
| 302 |
> |
sendto_realops_flags(UMODE_DEBUG, L_OPER, SEND_NOTICE, |
| 303 |
> |
"Fake direction: dropped message from %s[%s] via %s", |
| 304 |
> |
from->name, from->from->name, |
| 305 |
> |
client_get_name(client_p, MASK_IP)); |
| 306 |
|
return; |
| 307 |
|
} |
| 308 |
|
} |
| 326 |
|
*/ |
| 327 |
|
|
| 328 |
|
/* EOB is 3 characters long but is not a numeric */ |
| 329 |
< |
if (*(ch + 3) == ' ' && /* Ok, lets see if its a possible numeric.. */ |
| 329 |
> |
if (*(ch + 3) == ' ' && /* Ok, let's see if it's a possible numeric */ |
| 330 |
|
IsDigit(*ch) && IsDigit(*(ch + 1)) && IsDigit(*(ch + 2))) |
| 331 |
|
{ |
| 332 |
|
numeric = (*ch - '0') * 100 + (*(ch + 1) - '0') * 10 + (*(ch + 2) - '0'); |
| 337 |
|
} |
| 338 |
|
else |
| 339 |
|
{ |
| 204 |
– |
unsigned int ii = 0; |
| 205 |
– |
|
| 340 |
|
if ((s = strchr(ch, ' '))) |
| 341 |
|
*s++ = '\0'; |
| 342 |
|
|
| 343 |
< |
if ((msg_ptr = find_command(ch)) == NULL) |
| 343 |
> |
if ((message = find_command(ch)) == NULL) |
| 344 |
|
{ |
| 345 |
|
/* |
| 346 |
|
* Note: Give error message *only* to recognized |
| 361 |
|
return; |
| 362 |
|
} |
| 363 |
|
|
| 364 |
< |
assert(msg_ptr->cmd); |
| 364 |
> |
assert(message->cmd); |
| 365 |
> |
|
| 366 |
> |
paramcount = message->args_max; |
| 367 |
|
|
| 368 |
< |
paramcount = msg_ptr->args_max; |
| 369 |
< |
ii = bufend - ((s) ? s : ch); |
| 234 |
< |
msg_ptr->bytes += ii; |
| 368 |
> |
size_t length = bufend - ((s) ? s : ch); |
| 369 |
> |
message->bytes += length; |
| 370 |
|
} |
| 371 |
|
|
| 372 |
|
/* |
| 380 |
|
|
| 381 |
|
para[parc] = ch; |
| 382 |
|
|
| 383 |
+ |
if (message && (message->flags & MFLG_EXTRA)) |
| 384 |
+ |
{ |
| 385 |
+ |
/* |
| 386 |
+ |
* XXX: This will have to go away after the command handler rewrite |
| 387 |
+ |
*/ |
| 388 |
+ |
para[++parc] = message->extra; |
| 389 |
+ |
} |
| 390 |
+ |
|
| 391 |
|
if (s) |
| 392 |
|
{ |
| 393 |
|
if (paramcount > MAXPARA) |
| 403 |
|
|
| 404 |
|
if (*s == ':') |
| 405 |
|
{ |
| 406 |
< |
/* The rest is a single parameter */ |
| 406 |
> |
/* The rest is single parameter--can include blanks also. */ |
| 407 |
|
para[++parc] = s + (!numeric); /* Keep the colon if it's a numeric */ |
| 408 |
|
break; |
| 409 |
|
} |
| 420 |
|
|
| 421 |
|
para[++parc] = NULL; |
| 422 |
|
|
| 423 |
< |
if (msg_ptr) |
| 424 |
< |
handle_command(msg_ptr, from, parc, para); |
| 282 |
< |
else |
| 283 |
< |
handle_numeric(numeric, from, parc, para); |
| 284 |
< |
} |
| 285 |
< |
|
| 286 |
< |
/* handle_command() |
| 287 |
< |
* |
| 288 |
< |
* inputs - pointer to message block |
| 289 |
< |
* - pointer to client |
| 290 |
< |
* - pointer to client message is from |
| 291 |
< |
* - count of number of args |
| 292 |
< |
* - pointer to argv[] array |
| 293 |
< |
* output - -1 if error from server |
| 294 |
< |
* side effects - |
| 295 |
< |
*/ |
| 296 |
< |
static void |
| 297 |
< |
handle_command(struct Message *mptr, struct Client *source_p, |
| 298 |
< |
unsigned int i, char *para[]) |
| 299 |
< |
{ |
| 300 |
< |
if (IsServer(source_p->from)) |
| 301 |
< |
++mptr->rcount; |
| 302 |
< |
|
| 303 |
< |
++mptr->count; |
| 304 |
< |
|
| 305 |
< |
/* Check right amount of parameters is passed... --is */ |
| 306 |
< |
if (i < mptr->args_min) |
| 307 |
< |
sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, mptr->cmd); |
| 423 |
> |
if (message) |
| 424 |
> |
parse_handle_command(message, from, parc, para); |
| 425 |
|
else |
| 426 |
< |
mptr->handlers[source_p->from->handler](source_p, i, para); |
| 426 |
> |
parse_handle_numeric(numeric, from, parc, para); |
| 427 |
|
} |
| 428 |
|
|
| 429 |
|
/* add_msg_element() |
| 467 |
|
*/ |
| 468 |
|
if ((ntree_p = mtree_p->pointers[*cmd & (MAXPTRLEN - 1)]) == NULL) |
| 469 |
|
{ |
| 470 |
< |
ntree_p = MyCalloc(sizeof(struct MessageTree)); |
| 470 |
> |
ntree_p = xcalloc(sizeof(*ntree_p)); |
| 471 |
|
mtree_p->pointers[*cmd & (MAXPTRLEN - 1)] = ntree_p; |
| 472 |
|
|
| 473 |
|
mtree_p->links++; /* Have new pointer, so up ref count */ |
| 495 |
|
* |
| 496 |
|
* Then it pops up the recurse stack. As it comes back up the recurse |
| 497 |
|
* The code checks to see if the child now has no pointers or msg |
| 498 |
< |
* i.e. the links count has gone to zero. If its no longer used, the |
| 498 |
> |
* i.e. the links count has gone to zero. If it's no longer used, the |
| 499 |
|
* child struct MessageTree can be deleted. The parent reference |
| 500 |
|
* to this child is then removed and the parents link count goes down. |
| 501 |
|
* Thus, we continue to go back up removing all unused MessageTree(s) |
| 525 |
|
{ |
| 526 |
|
mtree_p->pointers[*cmd & (MAXPTRLEN - 1)] = NULL; |
| 527 |
|
mtree_p->links--; |
| 528 |
< |
MyFree(ntree_p); |
| 528 |
> |
xfree(ntree_p); |
| 529 |
|
} |
| 530 |
|
} |
| 531 |
|
} |
| 543 |
|
{ |
| 544 |
|
struct MessageTree *mtree = &msg_tree; |
| 545 |
|
|
| 546 |
< |
assert(cmd && *cmd); |
| 546 |
> |
assert(!EmptyString(cmd)); |
| 547 |
|
|
| 548 |
|
while (IsAlpha(*cmd) && (mtree = mtree->pointers[*cmd & (MAXPTRLEN - 1)])) |
| 549 |
|
if (*++cmd == '\0') |
| 557 |
|
* inputs - pointer to struct Message |
| 558 |
|
* output - none |
| 559 |
|
* side effects - load this one command name |
| 443 |
– |
* msg->count msg->bytes is modified in place, in |
| 444 |
– |
* modules address space. Might not want to do that... |
| 560 |
|
*/ |
| 561 |
|
void |
| 562 |
|
mod_add_cmd(struct Message *msg) |
| 563 |
|
{ |
| 564 |
< |
assert(msg && msg->cmd); |
| 564 |
> |
assert(msg); |
| 565 |
> |
assert(msg->cmd); |
| 566 |
|
|
| 567 |
|
/* Command already added? */ |
| 568 |
< |
if (msg_tree_parse(msg->cmd)) |
| 569 |
< |
return; |
| 454 |
< |
|
| 455 |
< |
add_msg_element(&msg_tree, msg, msg->cmd); |
| 456 |
< |
msg->count = msg->rcount = msg->bytes = 0; |
| 568 |
> |
if (msg_tree_parse(msg->cmd) == NULL) |
| 569 |
> |
add_msg_element(&msg_tree, msg, msg->cmd); |
| 570 |
|
} |
| 571 |
|
|
| 572 |
|
/* mod_del_cmd() |
| 578 |
|
void |
| 579 |
|
mod_del_cmd(struct Message *msg) |
| 580 |
|
{ |
| 581 |
< |
assert(msg && msg->cmd); |
| 582 |
< |
|
| 470 |
< |
if (!msg_tree_parse(msg->cmd)) |
| 471 |
< |
return; |
| 581 |
> |
assert(msg); |
| 582 |
> |
assert(msg->cmd); |
| 583 |
|
|
| 584 |
< |
del_msg_element(&msg_tree, msg->cmd); |
| 584 |
> |
if (msg_tree_parse(msg->cmd)) |
| 585 |
> |
del_msg_element(&msg_tree, msg->cmd); |
| 586 |
|
} |
| 587 |
|
|
| 588 |
|
/* find_command() |
| 620 |
|
void |
| 621 |
|
report_messages(struct Client *source_p) |
| 622 |
|
{ |
| 623 |
< |
const struct MessageTree *mtree = &msg_tree; |
| 623 |
> |
const struct MessageTree *const mtree = &msg_tree; |
| 624 |
|
|
| 625 |
|
for (unsigned int i = 0; i < MAXPTRLEN; ++i) |
| 626 |
|
if (mtree->pointers[i]) |
| 627 |
|
recurse_report_messages(source_p, mtree->pointers[i]); |
| 628 |
|
} |
| 629 |
|
|
| 518 |
– |
/* cancel_clients() |
| 519 |
– |
* |
| 520 |
– |
* inputs - |
| 521 |
– |
* output - |
| 522 |
– |
* side effects - |
| 523 |
– |
*/ |
| 524 |
– |
static void |
| 525 |
– |
cancel_clients(struct Client *client_p, struct Client *source_p, char *cmd) |
| 526 |
– |
{ |
| 527 |
– |
if (IsServer(source_p) || IsMe(source_p)) |
| 528 |
– |
{ |
| 529 |
– |
sendto_realops_flags(UMODE_DEBUG, L_ADMIN, SEND_NOTICE, |
| 530 |
– |
"Message for %s[%s] from %s", |
| 531 |
– |
source_p->name, source_p->from->name, |
| 532 |
– |
get_client_name(client_p, SHOW_IP)); |
| 533 |
– |
sendto_realops_flags(UMODE_DEBUG, L_OPER, SEND_NOTICE, |
| 534 |
– |
"Message for %s[%s] from %s", |
| 535 |
– |
source_p->name, source_p->from->name, |
| 536 |
– |
get_client_name(client_p, MASK_IP)); |
| 537 |
– |
sendto_realops_flags(UMODE_DEBUG, L_ALL, SEND_NOTICE, |
| 538 |
– |
"Not dropping server %s (%s) for Fake Direction", |
| 539 |
– |
client_p->name, source_p->name); |
| 540 |
– |
return; |
| 541 |
– |
} |
| 542 |
– |
|
| 543 |
– |
sendto_realops_flags(UMODE_DEBUG, L_ADMIN, SEND_NOTICE, |
| 544 |
– |
"Message for %s[%s@%s!%s] from %s (TS, ignored)", |
| 545 |
– |
source_p->name, source_p->username, source_p->host, |
| 546 |
– |
source_p->from->name, get_client_name(client_p, SHOW_IP)); |
| 547 |
– |
sendto_realops_flags(UMODE_DEBUG, L_OPER, SEND_NOTICE, |
| 548 |
– |
"Message for %s[%s@%s!%s] from %s (TS, ignored)", |
| 549 |
– |
source_p->name, source_p->username, source_p->host, |
| 550 |
– |
source_p->from->name, get_client_name(client_p, MASK_IP)); |
| 551 |
– |
} |
| 552 |
– |
|
| 553 |
– |
/* remove_unknown() |
| 554 |
– |
* |
| 555 |
– |
* inputs - |
| 556 |
– |
* output - |
| 557 |
– |
* side effects - |
| 558 |
– |
*/ |
| 559 |
– |
static void |
| 560 |
– |
remove_unknown(struct Client *client_p, char *lsender, char *lbuffer) |
| 561 |
– |
{ |
| 562 |
– |
/* |
| 563 |
– |
* Do kill if it came from a server because it means there is a ghost |
| 564 |
– |
* user on the other server which needs to be removed. -avalon |
| 565 |
– |
* Tell opers about this. -Taner |
| 566 |
– |
*/ |
| 567 |
– |
/* |
| 568 |
– |
* '[0-9]something' is an ID (KILL/SQUIT depending on its length) |
| 569 |
– |
* 'nodots' is a nickname (KILL) |
| 570 |
– |
* 'no.dot.at.start' is a server (SQUIT) |
| 571 |
– |
*/ |
| 572 |
– |
if ((IsDigit(*lsender) && strlen(lsender) <= IRC_MAXSID) || strchr(lsender, '.')) |
| 573 |
– |
{ |
| 574 |
– |
sendto_realops_flags(UMODE_DEBUG, L_ADMIN, SEND_NOTICE, |
| 575 |
– |
"Unknown prefix (%s) from %s, Squitting %s", |
| 576 |
– |
lbuffer, get_client_name(client_p, SHOW_IP), lsender); |
| 577 |
– |
sendto_realops_flags(UMODE_DEBUG, L_OPER, SEND_NOTICE, |
| 578 |
– |
"Unknown prefix (%s) from %s, Squitting %s", |
| 579 |
– |
lbuffer, client_p->name, lsender); |
| 580 |
– |
sendto_one(client_p, ":%s SQUIT %s :(Unknown prefix (%s) from %s)", |
| 581 |
– |
me.id, lsender, lbuffer, client_p->name); |
| 582 |
– |
} |
| 583 |
– |
else |
| 584 |
– |
sendto_one(client_p, ":%s KILL %s :%s (Unknown Client)", |
| 585 |
– |
me.id, lsender, me.name); |
| 586 |
– |
} |
| 587 |
– |
|
| 588 |
– |
/* |
| 589 |
– |
* |
| 590 |
– |
* parc number of arguments ('sender' counted as one!) |
| 591 |
– |
* parv[0] pointer to 'sender' (may point to empty string) (not used) |
| 592 |
– |
* parv[1]..parv[parc-1] |
| 593 |
– |
* pointers to additional parameters, this is a NULL |
| 594 |
– |
* terminated list (parv[parc] == NULL). |
| 595 |
– |
* |
| 596 |
– |
* *WARNING* |
| 597 |
– |
* Numerics are mostly error reports. If there is something |
| 598 |
– |
* wrong with the message, just *DROP* it! Don't even think of |
| 599 |
– |
* sending back a neat error message -- big danger of creating |
| 600 |
– |
* a ping pong error message... |
| 601 |
– |
* |
| 602 |
– |
* Rewritten by Nemesi, Jan 1999, to support numeric nicks in parv[1] |
| 603 |
– |
* |
| 604 |
– |
* Called when we get a numeric message from a remote _server_ and we are |
| 605 |
– |
* supposed to forward it somewhere. Note that we always ignore numerics sent |
| 606 |
– |
* to 'me' and simply drop the message if we can't handle with this properly: |
| 607 |
– |
* the savvy approach is NEVER generate an error in response to an... error :) |
| 608 |
– |
*/ |
| 609 |
– |
static void |
| 610 |
– |
handle_numeric(unsigned int numeric, struct Client *source_p, int parc, char *parv[]) |
| 611 |
– |
{ |
| 612 |
– |
struct Client *target_p = NULL; |
| 613 |
– |
struct Channel *chptr = NULL; |
| 614 |
– |
|
| 615 |
– |
/* |
| 616 |
– |
* Avoid trash, we need it to come from a server and have a target |
| 617 |
– |
*/ |
| 618 |
– |
if (parc < 2 || !IsServer(source_p)) |
| 619 |
– |
return; |
| 620 |
– |
|
| 621 |
– |
/* |
| 622 |
– |
* Who should receive this message ? Will we do something with it ? |
| 623 |
– |
* Note that we use findUser functions, so the target can't be neither |
| 624 |
– |
* a server, nor a channel (?) nor a list of targets (?) .. u2.10 |
| 625 |
– |
* should never generate numeric replies to non-users anyway |
| 626 |
– |
* Ahem... it can be a channel actually, csc bots use it :\ --Nem |
| 627 |
– |
*/ |
| 628 |
– |
if (IsChanPrefix(*parv[1])) |
| 629 |
– |
chptr = hash_find_channel(parv[1]); |
| 630 |
– |
else |
| 631 |
– |
target_p = find_person(source_p, parv[1]); |
| 632 |
– |
|
| 633 |
– |
if (((!target_p) || (target_p->from == source_p->from)) && !chptr) |
| 634 |
– |
return; |
| 635 |
– |
|
| 636 |
– |
/* |
| 637 |
– |
* Remap low number numerics, not that I understand WHY.. --Nemesi |
| 638 |
– |
*/ |
| 639 |
– |
/* |
| 640 |
– |
* Numerics below 100 talk about the current 'connection', you're not |
| 641 |
– |
* connected to a remote server so it doesn't make sense to send them |
| 642 |
– |
* remotely - but the information they contain may be useful, so we |
| 643 |
– |
* remap them up. Weird, but true. -- Isomer |
| 644 |
– |
*/ |
| 645 |
– |
if (numeric < 100) |
| 646 |
– |
numeric += 100; |
| 647 |
– |
|
| 648 |
– |
if (target_p) |
| 649 |
– |
{ |
| 650 |
– |
/* Fake it for server hiding, if it's our client */ |
| 651 |
– |
if (ConfigServerHide.hide_servers && MyConnect(target_p) && |
| 652 |
– |
!HasUMode(target_p, UMODE_OPER)) |
| 653 |
– |
sendto_one_numeric(target_p, &me, numeric|SND_EXPLICIT, "%s", parv[2]); |
| 654 |
– |
else |
| 655 |
– |
sendto_one_numeric(target_p, source_p, numeric|SND_EXPLICIT, "%s", parv[2]); |
| 656 |
– |
} |
| 657 |
– |
else |
| 658 |
– |
sendto_channel_butone(source_p, source_p, chptr, 0, "%u %s %s", |
| 659 |
– |
numeric, chptr->chname, parv[2]); |
| 660 |
– |
} |
| 661 |
– |
|
| 630 |
|
/* m_not_oper() |
| 631 |
|
* inputs - |
| 632 |
|
* output - |