File: | irc/core/servers-redirect.c |
Location: | line 566, column 9 |
Description: | Uninitialized or undefined return value returned to caller. |
1 | /* |
2 | server-redirect.c : irssi |
3 | |
4 | Copyright (C) 1999-2000 Timo Sirainen |
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 |
8 | the Free Software Foundation; either version 2 of the License, or |
9 | (at your option) any later version. |
10 | |
11 | This program is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | GNU General Public License for more details. |
15 | |
16 | You should have received a copy of the GNU General Public License along |
17 | with this program; if not, write to the Free Software Foundation, Inc., |
18 | 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
19 | */ |
20 | |
21 | #include "module.h" |
22 | #include "signals.h" |
23 | #include "misc.h" |
24 | #include "rawlog.h" |
25 | |
26 | #include "irc-servers.h" |
27 | #include "servers-redirect.h" |
28 | |
29 | #define DEFAULT_REDIRECT_TIMEOUT60 60 |
30 | |
31 | /* Allow one non-expected redirections to come before the expected one |
32 | before aborting it. Some IRC bouncers/proxies reply to eg. PINGs |
33 | immediately. */ |
34 | #define MAX_FAILURE_COUNT1 1 |
35 | |
36 | typedef struct { |
37 | char *name; |
38 | int refcount; |
39 | |
40 | int remote; |
41 | int timeout; |
42 | GSList *start, *stop, *opt; /* char *event, int argpos, ... */ |
43 | } REDIRECT_CMD_REC; |
44 | |
45 | struct _REDIRECT_REC { |
46 | REDIRECT_CMD_REC *cmd; |
47 | time_t created; |
48 | int failures; |
49 | char *prefix; |
50 | |
51 | unsigned int destroyed:1; |
52 | unsigned int aborted:1; |
53 | unsigned int remote:1; |
54 | unsigned int first_signal_sent:1; |
55 | |
56 | char *arg; |
57 | int count; |
58 | char *failure_signal, *default_signal, *first_signal, *last_signal; |
59 | GSList *signals; /* event, signal, ... */ |
60 | }; |
61 | |
62 | static GHashTable *command_redirects; /* "command xxx" : REDIRECT_CMD_REC* */ |
63 | |
64 | /* Find redirection command record for specified command line. */ |
65 | static REDIRECT_CMD_REC *redirect_cmd_find(const char *command) |
66 | { |
67 | REDIRECT_CMD_REC *rec; |
68 | const char *p; |
69 | char *cmd; |
70 | |
71 | p = strchr(command, ' '); |
72 | if (p == NULL((void *)0)) |
73 | rec = g_hash_table_lookup(command_redirects, command); |
74 | else { |
75 | cmd = g_strndup(command, (int) (p-command)); |
76 | rec = g_hash_table_lookup(command_redirects, cmd); |
77 | g_free(cmd); |
78 | } |
79 | return rec; |
80 | } |
81 | |
82 | static void redirect_cmd_destroy(REDIRECT_CMD_REC *rec) |
83 | { |
84 | GSList *tmp; |
85 | |
86 | for (tmp = rec->start; tmp != NULL((void *)0); tmp = tmp->next->next) |
87 | g_free(tmp->data); |
88 | for (tmp = rec->stop; tmp != NULL((void *)0); tmp = tmp->next->next) |
89 | g_free(tmp->data); |
90 | for (tmp = rec->opt; tmp != NULL((void *)0); tmp = tmp->next->next) |
91 | g_free(tmp->data); |
92 | g_slist_free(rec->start); |
93 | g_slist_free(rec->stop); |
94 | g_slist_free(rec->opt); |
95 | g_free(rec->name); |
96 | g_free(rec); |
97 | } |
98 | |
99 | static void redirect_cmd_ref(REDIRECT_CMD_REC *rec) |
100 | { |
101 | rec->refcount++; |
102 | } |
103 | |
104 | static void redirect_cmd_unref(REDIRECT_CMD_REC *rec) |
105 | { |
106 | if (--rec->refcount <= 0) |
107 | redirect_cmd_destroy(rec); |
108 | } |
109 | |
110 | void server_redirect_destroy(REDIRECT_REC *rec) |
111 | { |
112 | redirect_cmd_unref(rec->cmd); |
113 | |
114 | g_free_not_null(rec->prefix)g_free(rec->prefix); |
115 | g_free_not_null(rec->arg)g_free(rec->arg); |
116 | g_free_not_null(rec->failure_signal)g_free(rec->failure_signal); |
117 | g_free_not_null(rec->default_signal)g_free(rec->default_signal); |
118 | g_free_not_null(rec->first_signal)g_free(rec->first_signal); |
119 | g_free_not_null(rec->last_signal)g_free(rec->last_signal); |
120 | g_slist_foreach(rec->signals, (GFunc) g_free, NULL((void *)0)); |
121 | g_slist_free(rec->signals); |
122 | g_free(rec); |
123 | } |
124 | |
125 | void server_redirect_register(const char *command, |
126 | int remote, int timeout, ...) |
127 | { |
128 | va_list va; |
129 | GSList *start, *stop, *opt, **list; |
130 | const char *event; |
131 | int argpos; |
132 | |
133 | va_start(va, timeout)__builtin_va_start((va), (timeout)); |
134 | start = stop = opt = NULL((void *)0); list = &start; |
135 | for (;;) { |
136 | event = va_arg(va, const char *)__builtin_va_arg((va), const char *); |
137 | if (event == NULL((void *)0)) { |
138 | if (list == &start) |
139 | list = &stop; |
140 | else if (list == &stop) |
141 | list = &opt; |
142 | else |
143 | break; |
144 | continue; |
145 | } |
146 | |
147 | argpos = va_arg(va, int)__builtin_va_arg((va), int); |
148 | *list = g_slist_append(*list, g_strdup(event)); |
149 | *list = g_slist_append(*list, GINT_TO_POINTER(argpos)((gpointer) (argpos))); |
150 | } |
151 | |
152 | va_end(va)__builtin_va_end(va); |
153 | |
154 | server_redirect_register_list(command, remote, timeout, |
155 | start, stop, opt); |
156 | } |
157 | |
158 | void server_redirect_register_list(const char *command, |
159 | int remote, int timeout, |
160 | GSList *start, GSList *stop, GSList *opt) |
161 | { |
162 | REDIRECT_CMD_REC *rec; |
163 | gpointer key, value; |
164 | |
165 | g_return_if_fail(command != NULL)do{ if (command != ((void *)0)) { } else { g_return_if_fail_warning (((gchar*) 0), __PRETTY_FUNCTION__, "command != NULL"); return ; }; }while (0); |
166 | g_return_if_fail(stop != NULL)do{ if (stop != ((void *)0)) { } else { g_return_if_fail_warning (((gchar*) 0), __PRETTY_FUNCTION__, "stop != NULL"); return; }; }while (0); |
167 | |
168 | if (g_hash_table_lookup_extended(command_redirects, command, |
169 | &key, &value)) { |
170 | /* Already registered - might have changed so destroy |
171 | the old one */ |
172 | g_hash_table_remove(command_redirects, command); |
173 | redirect_cmd_unref(value); |
174 | } |
175 | |
176 | rec = g_new0(REDIRECT_CMD_REC, 1)((REDIRECT_CMD_REC *) g_malloc0 (((gsize) sizeof (REDIRECT_CMD_REC )) * ((gsize) (1)))); |
177 | redirect_cmd_ref(rec); |
178 | rec->name = g_strdup(command); |
179 | rec->remote = remote; |
180 | rec->timeout = timeout > 0 ? timeout : DEFAULT_REDIRECT_TIMEOUT60; |
181 | rec->start = start; |
182 | rec->stop = stop; |
183 | rec->opt = opt; |
184 | g_hash_table_insert(command_redirects, rec->name, rec); |
185 | } |
186 | |
187 | void server_redirect_event(IRC_SERVER_REC *server, const char *command, |
188 | int count, const char *arg, int remote, |
189 | const char *failure_signal, ...) |
190 | { |
191 | GSList *signals; |
192 | const char *event, *signal; |
193 | va_list va; |
194 | |
195 | va_start(va, failure_signal)__builtin_va_start((va), (failure_signal)); |
196 | signals = NULL((void *)0); |
197 | while ((event = va_arg(va, const char *)__builtin_va_arg((va), const char *)) != NULL((void *)0)) { |
198 | signal = va_arg(va, const char *)__builtin_va_arg((va), const char *); |
199 | if (signal == NULL((void *)0)) { |
200 | g_warning("server_redirect_event(%s): "g_log (((gchar*) 0), G_LOG_LEVEL_WARNING, "server_redirect_event(%s): " "signal not specified for event", command) |
201 | "signal not specified for event", command)g_log (((gchar*) 0), G_LOG_LEVEL_WARNING, "server_redirect_event(%s): " "signal not specified for event", command); |
202 | break; |
203 | } |
204 | |
205 | signals = g_slist_append(signals, g_strdup(event)); |
206 | signals = g_slist_append(signals, g_strdup(signal)); |
207 | } |
208 | |
209 | va_end(va)__builtin_va_end(va); |
210 | |
211 | server_redirect_event_list(server, command, count, arg, remote, |
212 | failure_signal, signals); |
213 | } |
214 | |
215 | /* Find specified event from signals list. If it's found, remove it from the |
216 | list and return it's target signal. */ |
217 | static char *signal_list_move(GSList **signals, const char *event) |
218 | { |
219 | GSList *link; |
220 | char *linkevent, *linksignal; |
221 | |
222 | link = gslist_find_string(*signals, event); |
223 | if (link == NULL((void *)0)) |
224 | return NULL((void *)0); |
225 | |
226 | linkevent = link->data; |
227 | linksignal = link->next->data; |
228 | |
229 | *signals = g_slist_remove(*signals, linkevent); |
230 | *signals = g_slist_remove(*signals, linksignal); |
231 | |
232 | g_free(linkevent); |
233 | return linksignal; |
234 | } |
235 | |
236 | void server_redirect_event_list(IRC_SERVER_REC *server, const char *command, |
237 | int count, const char *arg, int remote, |
238 | const char *failure_signal, GSList *signals) |
239 | { |
240 | REDIRECT_CMD_REC *cmdrec; |
241 | REDIRECT_REC *rec; |
242 | |
243 | g_return_if_fail(IS_IRC_SERVER(server))do{ if ((((IRC_SERVER_REC *) chat_protocol_check_cast(((SERVER_REC *) module_check_cast(server, __builtin_offsetof(SERVER_REC, type ), "SERVER")), __builtin_offsetof(IRC_SERVER_REC, chat_type), "IRC")) ? (!(0)) : (0))) { } else { g_return_if_fail_warning (((gchar*) 0), __PRETTY_FUNCTION__, "IS_IRC_SERVER(server)") ; return; }; }while (0); |
244 | g_return_if_fail(command != NULL)do{ if (command != ((void *)0)) { } else { g_return_if_fail_warning (((gchar*) 0), __PRETTY_FUNCTION__, "command != NULL"); return ; }; }while (0); |
245 | g_return_if_fail((g_slist_length(signals) & 1) == 0)do{ if ((g_slist_length(signals) & 1) == 0) { } else { g_return_if_fail_warning (((gchar*) 0), __PRETTY_FUNCTION__, "(g_slist_length(signals) & 1) == 0" ); return; }; }while (0); |
246 | |
247 | cmdrec = g_hash_table_lookup(command_redirects, command); |
248 | if (cmdrec == NULL((void *)0)) { |
249 | g_warning("Unknown redirection command: %s", command)g_log (((gchar*) 0), G_LOG_LEVEL_WARNING, "Unknown redirection command: %s" , command); |
250 | return; |
251 | } |
252 | |
253 | redirect_cmd_ref(cmdrec); |
254 | |
255 | rec = g_new0(REDIRECT_REC, 1)((REDIRECT_REC *) g_malloc0 (((gsize) sizeof (REDIRECT_REC)) * ((gsize) (1)))); |
256 | rec->created = time(NULL((void *)0)); |
257 | rec->cmd = cmdrec; |
258 | rec->arg = g_strdup(arg); |
259 | rec->count = count; |
260 | rec->remote = remote != -1 ? remote : cmdrec->remote; |
261 | rec->failure_signal = g_strdup(failure_signal); |
262 | |
263 | rec->default_signal = signal_list_move(&signals, ""); |
264 | rec->first_signal = signal_list_move(&signals, "redirect first"); |
265 | rec->last_signal = signal_list_move(&signals, "redirect last"); |
266 | rec->signals = signals; |
267 | |
268 | if (server->redirect_next != NULL((void *)0)) |
269 | server_redirect_destroy(server->redirect_next); |
270 | server->redirect_next = rec; |
271 | } |
272 | |
273 | void server_redirect_command(IRC_SERVER_REC *server, const char *command, |
274 | REDIRECT_REC *redirect) |
275 | { |
276 | REDIRECT_CMD_REC *cmdrec; |
277 | |
278 | g_return_if_fail(IS_IRC_SERVER(server))do{ if ((((IRC_SERVER_REC *) chat_protocol_check_cast(((SERVER_REC *) module_check_cast(server, __builtin_offsetof(SERVER_REC, type ), "SERVER")), __builtin_offsetof(IRC_SERVER_REC, chat_type), "IRC")) ? (!(0)) : (0))) { } else { g_return_if_fail_warning (((gchar*) 0), __PRETTY_FUNCTION__, "IS_IRC_SERVER(server)") ; return; }; }while (0); |
279 | g_return_if_fail(command != NULL)do{ if (command != ((void *)0)) { } else { g_return_if_fail_warning (((gchar*) 0), __PRETTY_FUNCTION__, "command != NULL"); return ; }; }while (0); |
280 | |
281 | if (redirect == NULL((void *)0)) { |
282 | /* no redirection wanted, but still register the command |
283 | so future redirections wont get messed up. */ |
284 | cmdrec = redirect_cmd_find(command); |
285 | if (cmdrec == NULL((void *)0)) |
286 | return; |
287 | |
288 | redirect_cmd_ref(cmdrec); |
289 | |
290 | redirect = g_new0(REDIRECT_REC, 1)((REDIRECT_REC *) g_malloc0 (((gsize) sizeof (REDIRECT_REC)) * ((gsize) (1)))); |
291 | redirect->created = time(NULL((void *)0)); |
292 | redirect->cmd = cmdrec; |
293 | redirect->remote = cmdrec->remote; |
294 | } |
295 | |
296 | server->redirects = g_slist_append(server->redirects, redirect); |
297 | } |
298 | |
299 | static int redirect_args_match(const char *event_args, |
300 | const char *arg, int pos) |
301 | { |
302 | const char *start; |
303 | |
304 | if (pos == -1) |
305 | return TRUE(!(0)); |
306 | |
307 | /* skip to the start of the wanted argument */ |
308 | while (pos > 0 && *event_args != '\0') { |
309 | while (*event_args != ' ' && *event_args != '\0') event_args++; |
310 | while (*event_args == ' ') event_args++; |
311 | pos--; |
312 | } |
313 | |
314 | /* now compare the arguments */ |
315 | start = event_args; |
316 | while (*arg != '\0') { |
317 | while (*arg != '\0' && *arg != ' ' && *event_args != '\0') { |
318 | if (i_toupper(*arg)__sbtoupper((int) (unsigned char) (*arg)) != i_toupper(*event_args)__sbtoupper((int) (unsigned char) (*event_args))) |
319 | break; |
320 | arg++; event_args++; |
321 | } |
322 | |
323 | if ((*arg == '\0' || *arg == ' ') && |
324 | (*event_args == '\0' || *event_args == ' ')) |
325 | return TRUE(!(0)); |
326 | |
327 | /* compare the next argument */ |
328 | while (*arg != ' ' && *arg != '\0') arg++; |
329 | while (*arg == ' ') arg++; |
330 | |
331 | event_args = start; |
332 | } |
333 | |
334 | return FALSE(0); |
335 | } |
336 | |
337 | static GSList *redirect_cmd_list_find(GSList *list, const char *event) |
338 | { |
339 | while (list != NULL((void *)0)) { |
340 | const char *str = list->data; |
341 | |
342 | if (strcmp(str, event) == 0) |
343 | break; |
344 | list = list->next->next; |
345 | } |
346 | |
347 | return list; |
348 | } |
349 | |
350 | #define MATCH_NONE0 0 |
351 | #define MATCH_START1 1 |
352 | #define MATCH_STOP2 2 |
353 | |
354 | static const char *redirect_match(REDIRECT_REC *redirect, const char *event, |
355 | const char *args, int *match) |
356 | { |
357 | GSList *tmp, *cmdpos; |
358 | const char *signal; |
359 | int match_list; |
360 | |
361 | if (redirect->aborted) |
362 | return NULL((void *)0); |
363 | |
364 | /* get the signal for redirection event - if it's not found we'll |
365 | use the default signal */ |
366 | signal = NULL((void *)0); |
367 | for (tmp = redirect->signals; tmp != NULL((void *)0); tmp = tmp->next->next) { |
368 | if (strcmp(tmp->data, event) == 0) { |
369 | signal = tmp->next->data; |
370 | break; |
371 | } |
372 | } |
373 | |
374 | /* find the argument position */ |
375 | if (redirect->destroyed) { |
376 | /* stop event is already found for this redirection, but |
377 | we'll still want to look for optional events */ |
378 | cmdpos = redirect_cmd_list_find(redirect->cmd->opt, event); |
379 | if (cmdpos == NULL((void *)0)) |
380 | return NULL((void *)0); |
381 | |
382 | match_list = MATCH_STOP2; |
383 | } else { |
384 | /* look from start/stop lists */ |
385 | cmdpos = redirect_cmd_list_find(redirect->cmd->start, event); |
386 | if (cmdpos != NULL((void *)0)) |
387 | match_list = MATCH_START1; |
388 | else { |
389 | cmdpos = redirect_cmd_list_find(redirect->cmd->stop, |
390 | event); |
391 | if (cmdpos != NULL((void *)0)) |
392 | match_list = MATCH_STOP2; |
393 | else if (redirect->default_signal != NULL((void *)0) && |
394 | args == NULL((void *)0) && |
395 | strncmp(event, "event ", 6) == 0 && |
396 | i_isdigit(event[6])__isctype(((int) (unsigned char) (event[6])), 0x00000400L)) { |
397 | /* If there is a default signal, the |
398 | * redirection has already started and |
399 | * this is a numeric, use it */ |
400 | /* XXX this should depend on the |
401 | * REDIRECT_CMD_REC, not REDIRECT_REC */ |
402 | if (signal == NULL((void *)0)) |
403 | signal = redirect->default_signal; |
404 | match_list = MATCH_START1; |
405 | } else { |
406 | match_list = MATCH_NONE0; |
407 | } |
408 | } |
409 | } |
410 | |
411 | if (signal == NULL((void *)0) && cmdpos == NULL((void *)0)) { |
412 | /* event not found from specified redirection events nor |
413 | registered command events, and no default signal */ |
414 | return NULL((void *)0); |
415 | } |
416 | |
417 | /* check that arguments match */ |
418 | if (args != NULL((void *)0) && redirect->arg != NULL((void *)0) && cmdpos != NULL((void *)0) && |
419 | !redirect_args_match(args, redirect->arg, |
420 | GPOINTER_TO_INT(cmdpos->next->data)((gint) (cmdpos->next->data)))) |
421 | return NULL((void *)0); |
422 | |
423 | *match = match_list; |
424 | return signal != NULL((void *)0) ? signal : redirect->default_signal; |
425 | } |
426 | |
427 | static void redirect_abort(IRC_SERVER_REC *server, REDIRECT_REC *rec) |
428 | { |
429 | char *str; |
430 | |
431 | server->redirects = |
432 | g_slist_remove(server->redirects, rec); |
433 | |
434 | if (rec->aborted || !rec->destroyed) { |
435 | /* emit the failure signal */ |
436 | str = g_strdup_printf(rec->failure_signal != NULL((void *)0) ? |
437 | "FAILED %s: %s" : "FAILED %s", |
438 | rec->cmd->name, rec->failure_signal); |
439 | rawlog_redirect(server->rawlog, str); |
440 | g_free(str); |
441 | |
442 | if (rec->failure_signal != NULL((void *)0)) |
443 | signal_emit(rec->failure_signal, 1, server); |
444 | } else if (rec->last_signal != NULL((void *)0)) { |
445 | /* emit the last signal */ |
446 | signal_emit(rec->last_signal, 1, server); |
447 | } |
448 | |
449 | server->redirect_active = g_slist_remove(server->redirect_active, rec); |
450 | |
451 | server_redirect_destroy(rec); |
452 | } |
453 | |
454 | #define REDIRECT_IS_TIMEOUTED(rec)((now-(rec)->created) > (rec)->cmd->timeout) \ |
455 | ((now-(rec)->created) > (rec)->cmd->timeout) |
456 | |
457 | |
458 | static REDIRECT_REC *redirect_find(IRC_SERVER_REC *server, const char *event, |
459 | const char *args, const char **signal, |
460 | int *match) |
461 | { |
462 | REDIRECT_REC *redirect; |
463 | GSList *tmp, *next; |
464 | time_t now; |
465 | const char *match_signal; |
466 | |
467 | /* find the redirection */ |
468 | *signal = NULL((void *)0); redirect = NULL((void *)0); |
469 | for (tmp = server->redirects; tmp != NULL((void *)0); tmp = tmp->next) { |
470 | REDIRECT_REC *rec = tmp->data; |
471 | |
472 | /* already active, don't try to start it again */ |
473 | if (g_slist_find(server->redirect_active, rec) != NULL((void *)0)) |
474 | continue; |
475 | |
476 | match_signal = redirect_match(rec, event, args, match); |
477 | if (match_signal != NULL((void *)0) && *match != MATCH_NONE0) { |
478 | redirect = rec; |
479 | *signal = match_signal; |
480 | break; |
481 | } |
482 | } |
483 | |
484 | /* remove the destroyed, non-remote and timeouted remote |
485 | redirections that should have happened before this redirection */ |
486 | now = time(NULL((void *)0)); |
487 | for (tmp = server->redirects; tmp != NULL((void *)0); tmp = next) { |
488 | REDIRECT_REC *rec = tmp->data; |
489 | |
490 | if (rec == redirect) |
491 | break; |
492 | |
493 | next = tmp->next; |
494 | if (rec->destroyed) { |
495 | /* redirection is finished, destroy it */ |
496 | redirect_abort(server, rec); |
497 | } else if (redirect != NULL((void *)0)) { |
498 | /* check if redirection failed */ |
499 | if (rec->aborted || |
500 | rec->failures++ >= MAX_FAILURE_COUNT1) { |
501 | /* enough failures, abort it now */ |
502 | if (!rec->remote || REDIRECT_IS_TIMEOUTED(rec)((now-(rec)->created) > (rec)->cmd->timeout)) |
503 | redirect_abort(server, rec); |
504 | } |
505 | } |
506 | } |
507 | |
508 | return redirect; |
509 | } |
510 | |
511 | static const char * |
512 | server_redirect_get(IRC_SERVER_REC *server, const char *prefix, |
513 | const char *event, const char *args, |
514 | REDIRECT_REC **redirect, int *match) |
515 | { |
516 | const char *signal; |
517 | GSList *ptr, *next; |
518 | REDIRECT_REC *r; |
519 | |
520 | *redirect = NULL((void *)0); |
521 | *match = MATCH_NONE0; |
522 | |
523 | if (server->redirects == NULL((void *)0)) |
[1] Taking false branch | |
524 | return NULL((void *)0); |
525 | |
526 | for (ptr = server->redirect_active; ptr != NULL((void *)0); ptr = next) { |
[2] Loop condition is false. Execution continues on line 550 | |
527 | next = ptr->next; |
528 | r = ptr->data; |
529 | if (prefix != NULL((void *)0) && r->prefix != NULL((void *)0) && |
530 | strcmp(prefix, r->prefix)) { |
531 | /* not from this server */ |
532 | continue; |
533 | } |
534 | /* redirection is already started, now we'll just need to |
535 | keep redirecting until stop-event is found. */ |
536 | *redirect = r; |
537 | signal = redirect_match(*redirect, event, NULL((void *)0), match); |
538 | if (signal == NULL((void *)0)) { |
539 | /* not a numeric, so we've lost the |
540 | stop event.. */ |
541 | (*redirect)->aborted = TRUE(!(0)); |
542 | redirect_abort(server, *redirect); |
543 | |
544 | *redirect = NULL((void *)0); |
545 | } |
546 | if (*redirect != NULL((void *)0)) |
547 | break; |
548 | } |
549 | |
550 | if (*redirect == NULL((void *)0)) { |
[3] Taking false branch | |
551 | /* find the redirection */ |
552 | *redirect = redirect_find(server, event, args, &signal, match); |
553 | } |
554 | |
555 | /* remember which server is replying to our request */ |
556 | if (*redirect != NULL((void *)0) && prefix != NULL((void *)0) && (*redirect)->prefix == NULL((void *)0)) |
[4] Taking false branch | |
557 | (*redirect)->prefix = g_strdup(prefix); |
558 | |
559 | if (*redirect != NULL((void *)0) && (*redirect)->first_signal != NULL((void *)0) && |
[5] Taking true branch | |
560 | !(*redirect)->first_signal_sent) { |
561 | /* emit the first_signal */ |
562 | (*redirect)->first_signal_sent = TRUE(!(0)); |
563 | signal_emit((*redirect)->first_signal, 1, server); |
564 | } |
565 | |
566 | return signal; |
[6] Uninitialized or undefined return value returned to caller | |
567 | } |
568 | |
569 | const char *server_redirect_get_signal(IRC_SERVER_REC *server, |
570 | const char *prefix, |
571 | const char *event, |
572 | const char *args) |
573 | { |
574 | REDIRECT_REC *redirect; |
575 | const char *signal; |
576 | int match; |
577 | |
578 | signal = server_redirect_get(server, prefix, event, args, &redirect, &match); |
579 | if (redirect == NULL((void *)0)) |
580 | ; |
581 | else if (match != MATCH_STOP2) { |
582 | if (g_slist_find(server->redirect_active, redirect) == NULL((void *)0)) |
583 | server->redirect_active = g_slist_prepend(server->redirect_active, redirect); |
584 | } else { |
585 | /* stop event - remove this redirection next time this |
586 | function is called (can't destroy now or our return |
587 | value would be corrupted) */ |
588 | if (--redirect->count <= 0) |
589 | redirect->destroyed = TRUE(!(0)); |
590 | server->redirect_active = g_slist_remove(server->redirect_active, redirect); |
591 | } |
592 | |
593 | return signal; |
594 | } |
595 | |
596 | const char *server_redirect_peek_signal(IRC_SERVER_REC *server, |
597 | const char *prefix, |
598 | const char *event, |
599 | const char *args, |
600 | int *redirected) |
601 | { |
602 | REDIRECT_REC *redirect; |
603 | const char *signal; |
604 | int match; |
605 | |
606 | signal = server_redirect_get(server, prefix, event, args, &redirect, &match); |
607 | *redirected = match != MATCH_NONE0; |
608 | return signal; |
609 | } |
610 | |
611 | static void sig_disconnected(IRC_SERVER_REC *server) |
612 | { |
613 | if (!IS_IRC_SERVER(server)(((IRC_SERVER_REC *) chat_protocol_check_cast(((SERVER_REC *) module_check_cast(server, __builtin_offsetof(SERVER_REC, type ), "SERVER")), __builtin_offsetof(IRC_SERVER_REC, chat_type), "IRC")) ? (!(0)) : (0))) |
614 | return; |
615 | |
616 | g_slist_free(server->redirect_active); |
617 | server->redirect_active = NULL((void *)0); |
618 | g_slist_foreach(server->redirects, |
619 | (GFunc) server_redirect_destroy, NULL((void *)0)); |
620 | g_slist_free(server->redirects); |
621 | server->redirects = NULL((void *)0); |
622 | |
623 | if (server->redirect_next != NULL((void *)0)) { |
624 | server_redirect_destroy(server->redirect_next); |
625 | server->redirect_next = NULL((void *)0); |
626 | } |
627 | } |
628 | |
629 | static void cmd_redirect_destroy(char *key, REDIRECT_CMD_REC *cmd) |
630 | { |
631 | redirect_cmd_unref(cmd); |
632 | } |
633 | |
634 | void servers_redirect_init(void) |
635 | { |
636 | command_redirects = g_hash_table_new((GHashFunc) g_str_hash, (GCompareFunc) g_str_equal); |
637 | |
638 | /* WHOIS - register as remote command by default |
639 | with a default timeout */ |
640 | server_redirect_register("whois", TRUE(!(0)), 0, |
641 | "event 311", 1, /* Begins the WHOIS */ |
642 | NULL((void *)0), |
643 | "event 401", 1, /* No such nick */ |
644 | "event 318", 1, /* End of WHOIS */ |
645 | "event 402", 1, /* No such server */ |
646 | "event 431", 1, /* No nickname given */ |
647 | "event 461", 1, /* Not enough parameters */ |
648 | NULL((void *)0), |
649 | "event 318", 1, /* After 401, we should get 318, but in OPN we don't.. */ |
650 | NULL((void *)0)); |
651 | |
652 | /* WHOWAS */ |
653 | server_redirect_register("whowas", FALSE(0), 0, |
654 | "event 314", 1, /* Begins the WHOWAS */ |
655 | "event 406", 1, /* There was no such nick */ |
656 | NULL((void *)0), |
657 | "event 369", 1, /* End of WHOWAS */ |
658 | NULL((void *)0), |
659 | NULL((void *)0)); |
660 | |
661 | /* WHO */ |
662 | server_redirect_register("who", FALSE(0), 0, |
663 | "event 352", 1, /* Begins the WHO */ |
664 | "event 401", 1, /* No such nick/channel */ |
665 | NULL((void *)0), |
666 | "event 315", 1, /* End of WHO */ |
667 | "event 403", 1, /* no such channel */ |
668 | NULL((void *)0), |
669 | NULL((void *)0)); |
670 | |
671 | /* LIST */ |
672 | server_redirect_register("list", FALSE(0), 0, |
673 | "event 321", 1, /* Begins the LIST */ |
674 | NULL((void *)0), |
675 | "event 323", 1, /* End of LIST */ |
676 | NULL((void *)0), |
677 | NULL((void *)0)); |
678 | |
679 | /* ISON */ |
680 | server_redirect_register("ison", FALSE(0), 0, |
681 | NULL((void *)0), |
682 | "event 303", -1, /* ISON */ |
683 | NULL((void *)0), |
684 | NULL((void *)0)); |
685 | |
686 | /* USERHOST */ |
687 | server_redirect_register("userhost", FALSE(0), 0, |
688 | "event 401", 1, /* no such nick */ |
689 | NULL((void *)0), |
690 | "event 302", -1, /* Userhost */ |
691 | "event 461", -1, /* Not enough parameters */ |
692 | NULL((void *)0), |
693 | NULL((void *)0)); |
694 | |
695 | /* MODE user */ |
696 | server_redirect_register("mode user", FALSE(0), 0, |
697 | NULL((void *)0), |
698 | "event mode", 0, /* MODE-reply */ |
699 | "event 501", -1, /* Uknown MODE flag */ |
700 | "event 502", -1, /* Can't change mode for other users */ |
701 | "event 403", 1, /* That channel doesn't exist (tried to change mode to others) */ |
702 | NULL((void *)0), |
703 | NULL((void *)0)); |
704 | |
705 | /* MODE #channel */ |
706 | server_redirect_register("mode channel", FALSE(0), 0, |
707 | NULL((void *)0), |
708 | "event 324", 1, /* MODE-reply */ |
709 | "event 403", 1, /* no such channel */ |
710 | "event 442", 1, /* "you're not on that channel" */ |
711 | "event 479", 1, /* "Cannot join channel (illegal name)" IMHO this is not a logical reply from server. */ |
712 | NULL((void *)0), |
713 | "event 329", 1, /* Channel create time */ |
714 | NULL((void *)0)); |
715 | |
716 | /* MODE #channel b */ |
717 | server_redirect_register("mode b", FALSE(0), 0, |
718 | "event 367", 1, |
719 | NULL((void *)0), |
720 | "event 368", 1, /* End of Channel ban List */ |
721 | "event 403", 1, /* no such channel */ |
722 | "event 442", 1, /* "you're not on that channel" */ |
723 | "event 479", 1, /* "Cannot join channel (illegal name)" IMHO this is not a logical reply from server. */ |
724 | NULL((void *)0), |
725 | NULL((void *)0)); |
726 | |
727 | /* MODE #channel e */ |
728 | server_redirect_register("mode e", FALSE(0), 0, |
729 | "event 348", 1, |
730 | NULL((void *)0), |
731 | "event 349", 1, /* End of ban exceptions */ |
732 | "event 482", 1, /* not channel operator - OPN's ircd doesn't want non-ops to see ban exceptions */ |
733 | "event 403", 1, /* no such channel */ |
734 | "event 442", 1, /* "you're not on that channel" */ |
735 | "event 479", 1, /* "Cannot join channel (illegal name)" IMHO this is not a logical reply from server. */ |
736 | "event 472", -1, /* unknown mode (you should check e-mode's existance from 004 event instead of relying on this) */ |
737 | NULL((void *)0), |
738 | NULL((void *)0)); |
739 | |
740 | /* MODE #channel I */ |
741 | server_redirect_register("mode I", FALSE(0), 0, |
742 | "event 346", 1, |
743 | NULL((void *)0), |
744 | "event 347", 1, /* End of invite list */ |
745 | "event 482", 1, /* not channel operator - OPN's ircd doesn't want non-ops to see ban exceptions */ |
746 | "event 403", 1, /* no such channel */ |
747 | "event 442", 1, /* "you're not on that channel" */ |
748 | "event 479", 1, /* "Cannot join channel (illegal name)" IMHO this is not a logical reply from server. */ |
749 | "event 472", -1, /* unknown mode (you should check I-mode's existance from 004 event instead of relying on this) */ |
750 | NULL((void *)0), |
751 | NULL((void *)0)); |
752 | |
753 | /* PING - use default timeout */ |
754 | server_redirect_register("ping", TRUE(!(0)), 0, |
755 | NULL((void *)0), |
756 | "event 402", -1, /* no such server */ |
757 | "event pong", -1, /* PONG */ |
758 | NULL((void *)0), |
759 | NULL((void *)0)); |
760 | |
761 | signal_add("server disconnected", (SIGNAL_FUNC) sig_disconnected)signal_add_full("irc/core", 0, ("server disconnected"), (SIGNAL_FUNC ) ((SIGNAL_FUNC) sig_disconnected), ((void *)0)); |
762 | } |
763 | |
764 | void servers_redirect_deinit(void) |
765 | { |
766 | g_hash_table_foreach(command_redirects, |
767 | (GHFunc) cmd_redirect_destroy, NULL((void *)0)); |
768 | g_hash_table_destroy(command_redirects); |
769 | |
770 | signal_remove("server disconnected", (SIGNAL_FUNC) sig_disconnected)signal_remove_full(("server disconnected"), (SIGNAL_FUNC) ((SIGNAL_FUNC ) sig_disconnected), ((void *)0)); |
771 | } |