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Commit | Line | Data |
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18f8bd28 CP |
1 | /* |
2 | nterfacer | |
c86a0114 | 3 | Copyright (C) 2004-2005 Chris Porter. |
18f8bd28 | 4 | |
95ee3dac CP |
5 | v1.07 |
6 | - made sure buf[0] = '\0' | |
c86a0114 CP |
7 | v1.06 |
8 | - tidy up | |
6cf2d6a5 CP |
9 | v1.05 |
10 | - added application level ping support | |
18f8bd28 CP |
11 | v1.04 |
12 | - modified for new logging system | |
13 | v1.03 | |
14 | - newserv seems to unload this module before the ones that depend on us, | |
15 | so deregister_service now checks to see if it's been freed already | |
16 | v1.02 | |
17 | - moronic bug in linked lists fixed | |
18 | v1.01 | |
19 | - logging | |
20 | */ | |
21 | ||
22 | #include <stdio.h> | |
23 | #include <stdlib.h> | |
24 | #include <stdarg.h> | |
25 | #include <sys/poll.h> | |
26 | #include <sys/types.h> | |
27 | #include <sys/socket.h> | |
28 | #include <errno.h> | |
29 | #include <unistd.h> | |
30 | #include <sys/ioctl.h> | |
31 | #include <netdb.h> | |
32 | #include <string.h> | |
33 | ||
34 | #include "../lib/sstring.h" | |
35 | #include "../lib/irc_string.h" | |
36 | #include "../core/config.h" | |
37 | #include "../core/events.h" | |
38 | ||
39 | #include "nterfacer.h" | |
40 | #include "logging.h" | |
41 | ||
42 | struct service_node *tree = NULL; | |
43 | struct esocket_events nterfacer_events; | |
44 | struct esocket *nterfacer_sock; | |
45 | struct rline *rlines = NULL; | |
46 | unsigned short nterfacer_token = BLANK_TOKEN; | |
47 | struct nterface_auto_log *nrl; | |
48 | ||
c86a0114 | 49 | struct service_node *ping = NULL; |
6cf2d6a5 CP |
50 | |
51 | int ping_handler(struct rline *ri, int argc, char **argv); | |
52 | ||
18f8bd28 CP |
53 | void _init(void) { |
54 | int loaded; | |
55 | int debug_mode = getcopyconfigitemintpositive("nterfacer", "debug", 0); | |
56 | ||
57 | nrl = nterface_open_log("nterfacer", "logs/nterfacer.log", debug_mode); | |
58 | ||
59 | loaded = load_permits(); | |
60 | if(!loaded) { | |
61 | nterface_log(nrl, NL_ERROR, "No permits loaded successfully."); | |
62 | return; | |
63 | } else { | |
64 | nterface_log(nrl, NL_INFO, "Loaded %d permit%s successfully.", loaded, loaded==1?"":"s"); | |
65 | } | |
66 | ||
67 | nterfacer_events.on_accept = nterfacer_accept_event; | |
68 | nterfacer_events.on_line = nterfacer_line_event; | |
69 | nterfacer_events.on_disconnect = NULL; | |
70 | ||
71 | nterfacer_token = esocket_token(); | |
72 | ||
6cf2d6a5 CP |
73 | ping = register_service("nterfacer"); |
74 | if(!ping) { | |
75 | MemError(); | |
76 | } else { | |
77 | register_handler(ping, "ping", 0, ping_handler); | |
78 | } | |
79 | ||
18f8bd28 CP |
80 | accept_fd = setup_listening_socket(); |
81 | if(accept_fd == -1) { | |
82 | nterface_log(nrl, NL_ERROR, "Unable to setup listening socket!"); | |
83 | } else { | |
84 | nterfacer_sock = esocket_add(accept_fd, ESOCKET_UNIX_DOMAIN, &nterfacer_events, nterfacer_token); | |
85 | } | |
86 | ||
87 | /* the main unix domain socket must NOT have a disconnect event. */ | |
88 | nterfacer_events.on_disconnect = nterfacer_disconnect_event; | |
89 | } | |
90 | ||
504f62c7 CP |
91 | void free_handler(struct handler *hp) { |
92 | freesstring(hp->command); | |
93 | free(hp); | |
94 | } | |
95 | ||
18f8bd28 CP |
96 | void free_handlers(struct service_node *tp) { |
97 | struct handler *hp, *lp; | |
98 | ||
99 | for(hp=tp->handlers;hp;) { | |
100 | lp = hp; | |
101 | hp = hp->next; | |
504f62c7 | 102 | free_handler(lp); |
18f8bd28 CP |
103 | } |
104 | ||
105 | tp->handlers = NULL; | |
106 | } | |
107 | ||
108 | void _fini(void) { | |
109 | struct service_node *tp, *lp; | |
110 | int i; | |
111 | ||
6cf2d6a5 CP |
112 | if(ping) |
113 | deregister_service(ping); | |
114 | ||
18f8bd28 CP |
115 | for(tp=tree;tp;) { |
116 | lp = tp; | |
117 | tp = tp->next; | |
118 | free_handlers(lp); | |
119 | free(lp); | |
120 | } | |
121 | tree = NULL; | |
122 | ||
123 | if((accept_fd != -1) && nterfacer_sock) { | |
124 | esocket_clean_by_token(nterfacer_token); | |
125 | nterfacer_sock = NULL; | |
126 | accept_fd = -1; | |
127 | } | |
128 | ||
129 | if(permits && permit_count) { | |
130 | for(i=0;i<permit_count;i++) { | |
131 | freesstring(permits[i].hostname); | |
132 | freesstring(permits[i].password); | |
133 | } | |
134 | free(permits); | |
135 | permit_count = 0; | |
136 | permits = NULL; | |
137 | } | |
138 | ||
139 | nrl = nterface_close_log(nrl); | |
140 | } | |
141 | ||
142 | int load_permits(void) { | |
143 | int lines, loaded_lines = 0, i, j; | |
144 | struct permitted *new_permits, *resized, *item; | |
145 | struct hostent *host; | |
146 | char buf[50]; | |
147 | ||
084e76d8 | 148 | lines = getcopyconfigitemintpositive("nterfacer", "permits", 0); |
18f8bd28 CP |
149 | if(lines < 1) { |
150 | nterface_log(nrl, NL_ERROR, "No permits found in config file."); | |
151 | return 0; | |
152 | } | |
153 | nterface_log(nrl, NL_INFO, "Loading %d permit%s from config file", lines, lines==1?"":"s"); | |
154 | ||
155 | new_permits = calloc(lines, sizeof(struct permitted)); | |
156 | item = new_permits; | |
157 | ||
158 | for(i=1;i<=lines;i++) { | |
159 | snprintf(buf, sizeof(buf), "hostname%d", i); | |
160 | item->hostname = getcopyconfigitem("nterfacer", buf, "", 100); | |
161 | if(!item->hostname) { | |
084e76d8 | 162 | nterface_log(nrl, NL_ERROR, "No hostname found for item %d.", item->hostname->content, i); |
18f8bd28 CP |
163 | continue; |
164 | } | |
165 | ||
166 | host = gethostbyname(item->hostname->content); | |
167 | if (!host) { | |
168 | nterface_log(nrl, NL_WARNING, "Couldn't resolve hostname: %s (item %d).", item->hostname->content, i); | |
169 | freesstring(item->hostname); | |
170 | continue; | |
171 | } | |
172 | ||
173 | item->ihost = (*(struct in_addr *)host->h_addr).s_addr; | |
174 | for(j=0;j<loaded_lines;j++) { | |
175 | if(new_permits[j].ihost == item->ihost) { | |
176 | nterface_log(nrl, NL_WARNING, "Host with items %d and %d is identical, dropping item %d.", j + 1, i, i); | |
177 | host = NULL; | |
178 | } | |
179 | } | |
180 | ||
181 | if(!host) { | |
182 | freesstring(item->hostname); | |
183 | continue; | |
184 | } | |
185 | ||
186 | snprintf(buf, sizeof(buf), "password%d", i); | |
187 | item->password = getcopyconfigitem("nterfacer", buf, "", 100); | |
188 | if(!item->password) { | |
084e76d8 | 189 | nterface_log(nrl, NL_ERROR, "No password found for item %d.", item->hostname->content, i); |
18f8bd28 CP |
190 | freesstring(item->hostname); |
191 | continue; | |
192 | } | |
193 | ||
194 | nterface_log(nrl, NL_DEBUG, "Loaded permit, hostname: %s.", item->hostname->content); | |
195 | ||
196 | item++; | |
197 | loaded_lines++; | |
198 | } | |
199 | ||
200 | if(!loaded_lines) { | |
201 | free(new_permits); | |
202 | return 0; | |
203 | } | |
204 | ||
205 | resized = realloc(new_permits, sizeof(struct permitted) * loaded_lines); | |
206 | if(!resized) { | |
207 | MemError(); | |
208 | free(new_permits); | |
209 | return 0; | |
210 | } | |
211 | permits = resized; | |
212 | permit_count = loaded_lines; | |
213 | ||
214 | return permit_count; | |
215 | } | |
216 | ||
217 | int setup_listening_socket(void) { | |
218 | struct sockaddr_in sin; | |
219 | int fd; | |
220 | unsigned int opt = 1; | |
221 | ||
222 | fd = socket(AF_INET, SOCK_STREAM, 0); | |
223 | ||
224 | /* also shamelessly ripped from proxyscan */ | |
225 | if(fd == -1) { | |
226 | nterface_log(nrl, NL_ERROR, "Unable to open listening socket (%d).", errno); | |
227 | return -1; | |
228 | } | |
229 | ||
230 | if(setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *) &opt, sizeof(opt)) != 0) { | |
231 | nterface_log(nrl, NL_ERROR, "Unable to set SO_REUSEADDR on listen socket."); | |
232 | return -1; | |
233 | } | |
234 | ||
235 | /* Initialiase the addresses */ | |
236 | memset(&sin, 0, sizeof(sin)); | |
237 | sin.sin_family = AF_INET; | |
084e76d8 | 238 | sin.sin_port = htons(getcopyconfigitemintpositive("nterfacer", "port", NTERFACER_PORT)); |
18f8bd28 CP |
239 | |
240 | if(bind(fd, (struct sockaddr *) &sin, sizeof(sin))) { | |
241 | nterface_log(nrl, NL_ERROR, "Unable to bind listen socket (%d).", errno); | |
242 | return -1; | |
243 | } | |
244 | ||
245 | listen(fd, 5); | |
246 | ||
97eb3b6f | 247 | if(ioctl(fd, FIONBIO, &opt)) { |
18f8bd28 CP |
248 | nterface_log(nrl, NL_ERROR, "Unable to set listen socket non-blocking."); |
249 | return -1; | |
250 | } | |
251 | ||
252 | return fd; | |
253 | } | |
254 | ||
255 | struct service_node *register_service(char *name) { | |
256 | struct service_node *np = malloc(sizeof(service_node)); | |
257 | MemCheckR(np, NULL); | |
258 | ||
259 | np->name = getsstring(name, strlen(name)); | |
260 | if(!np->name) { | |
261 | MemError(); | |
262 | free(np); | |
263 | return NULL; | |
264 | } | |
265 | ||
266 | np->handlers = NULL; | |
267 | np->next = tree; | |
268 | tree = np; | |
269 | ||
270 | return np; | |
271 | } | |
272 | ||
273 | struct handler *register_handler(struct service_node *service, char *command, int args, handler_function fp) { | |
274 | struct handler *hp = malloc(sizeof(handler)); | |
275 | MemCheckR(hp, NULL); | |
276 | ||
277 | hp->command = getsstring(command, strlen(command)); | |
278 | if(!hp->command) { | |
279 | MemError(); | |
280 | free(hp); | |
281 | return NULL; | |
282 | } | |
283 | ||
a690fb9f | 284 | hp->function = fp; |
18f8bd28 CP |
285 | hp->args = args; |
286 | ||
287 | hp->next = service->handlers; | |
504f62c7 | 288 | hp->service = service; |
18f8bd28 CP |
289 | service->handlers = hp; |
290 | ||
291 | return hp; | |
292 | } | |
293 | ||
504f62c7 CP |
294 | void deregister_handler(struct handler *hl) { |
295 | struct service_node *service = (struct service_node *)hl->service; | |
296 | struct handler *np, *lp = NULL; | |
297 | for(np=service->handlers;np;lp=np,np=np->next) { | |
298 | if(hl == np) { | |
299 | if(lp) { | |
300 | lp->next = np->next; | |
301 | } else { | |
302 | service->handlers = np->next; | |
303 | } | |
304 | free_handler(np); | |
305 | return; | |
306 | } | |
307 | } | |
308 | } | |
309 | ||
18f8bd28 CP |
310 | void deregister_service(struct service_node *service) { |
311 | struct service_node *sp, *lp = NULL; | |
312 | struct rline *li, *pi = NULL; | |
313 | ||
314 | for(sp=tree;sp;lp=sp,sp=sp->next) { | |
315 | if(sp == service) { | |
316 | if(lp) { | |
317 | lp->next = sp->next; | |
318 | } else { | |
319 | tree = sp->next; | |
320 | } | |
321 | break; | |
322 | } | |
323 | } | |
324 | ||
325 | if(!sp) /* already freed */ | |
326 | return; | |
327 | ||
328 | free_handlers(service); | |
329 | ||
330 | for(li=rlines;li;) { | |
331 | if(li->service == service) { | |
332 | if(pi) { | |
333 | pi->next = li->next; | |
334 | free(li); | |
335 | li = pi->next; | |
336 | } else { | |
337 | rlines = li->next; | |
338 | free(li); | |
339 | li = rlines; | |
340 | } | |
341 | } else { | |
342 | pi=li,li=li->next; | |
343 | } | |
344 | } | |
345 | freesstring(service->name); | |
346 | ||
347 | free(service); | |
348 | } | |
349 | ||
350 | void nterfacer_accept_event(struct esocket *socket) { | |
351 | struct sockaddr_in sin; | |
352 | unsigned int addrsize = sizeof(sin); | |
353 | int newfd = accept(socket->fd, (struct sockaddr *)&sin, &addrsize), i; | |
354 | struct sconnect *temp; | |
355 | struct permitted *item = NULL; | |
356 | struct esocket *newsocket; | |
084e76d8 | 357 | unsigned int opt = 1; |
18f8bd28 CP |
358 | |
359 | if(newfd == -1) { | |
360 | nterface_log(nrl, NL_WARNING, "Unable to accept nterfacer fd!"); | |
361 | return; | |
362 | } | |
363 | ||
97eb3b6f CP |
364 | if(ioctl(newfd, FIONBIO, &opt)) { |
365 | nterface_log(nrl, NL_ERROR, "Unable to set accepted socket non-blocking."); | |
3f15de97 | 366 | return; |
084e76d8 CP |
367 | } |
368 | ||
18f8bd28 CP |
369 | for(i=0;i<permit_count;i++) { |
370 | if(permits[i].ihost == sin.sin_addr.s_addr) { | |
371 | item = &permits[i]; | |
372 | break; | |
373 | } | |
374 | } | |
375 | ||
376 | if(!item) { | |
377 | nterface_log(nrl, NL_INFO, "Unauthorised connection from: %s", IPtostr(htonl(sin.sin_addr.s_addr))); | |
378 | close(newfd); | |
379 | return; | |
380 | } | |
381 | ||
382 | temp = (struct sconnect *)malloc(sizeof(struct sconnect)); | |
383 | if(!temp) { | |
384 | MemError(); | |
385 | close(newfd); | |
386 | return; | |
387 | } | |
388 | ||
389 | /* do checks on hostname first */ | |
390 | ||
391 | newsocket = esocket_add(newfd, ESOCKET_UNIX_DOMAIN_CONNECTED, &nterfacer_events, nterfacer_token); | |
392 | if(!newsocket) { | |
393 | free(temp); | |
394 | close(newfd); | |
395 | return; | |
396 | } | |
397 | newsocket->tag = temp; | |
398 | ||
399 | nterface_log(nrl, NL_INFO, "New connection from %s.", item->hostname->content); | |
400 | ||
401 | temp->status = SS_IDLE; | |
402 | temp->permit = item; | |
403 | ||
404 | esocket_write_line(newsocket, "nterfacer " PROTOCOL_VERSION); | |
405 | } | |
406 | ||
407 | int nterfacer_line_event(struct esocket *sock, char *newline) { | |
408 | struct sconnect *socket = sock->tag; | |
409 | char *response, *theirnonceh = NULL; | |
410 | unsigned char theirnonce[NONCE_LEN]; | |
411 | int number, reason; | |
412 | ||
413 | switch(socket->status) { | |
414 | case SS_IDLE: | |
415 | if(strcasecmp(newline, ANTI_FULL_VERSION)) { | |
416 | nterface_log(nrl, NL_INFO, "Protocol mismatch from %s: %s", socket->permit->hostname->content, newline); | |
417 | return 1; | |
418 | } else { | |
419 | char *hex, hexbuf[NONCE_LEN * 2 + 1]; /* Vekoma mAD HoUSe */ | |
420 | ||
421 | hex = get_random_hex(); | |
422 | if(!hex) { | |
423 | nterface_log(nrl, NL_ERROR, "Unable to open challenge entropy bin!"); | |
424 | return 1; | |
425 | } | |
426 | ||
427 | memcpy(socket->response, challenge_response(hex, socket->permit->password->content), sizeof(socket->response)); | |
428 | socket->response[sizeof(socket->response) - 1] = '\0'; /* just in case */ | |
429 | ||
430 | socket->status = SS_VERSIONED; | |
431 | if(!generate_nonce(socket->ournonce, 1)) { | |
432 | nterface_log(nrl, NL_ERROR, "Unable to generate nonce!"); | |
433 | return 1; | |
434 | } | |
435 | ||
701500af CP |
436 | if(esocket_write_line(sock, "%s %s", hex, int_to_hex(socket->ournonce, hexbuf, NONCE_LEN))) |
437 | return BUF_ERROR; | |
438 | return 0; | |
18f8bd28 CP |
439 | } |
440 | break; | |
441 | case SS_VERSIONED: | |
442 | for(response=newline;*response;response++) { | |
443 | if((*response == ' ') && (*(response + 1))) { | |
444 | *response = '\0'; | |
445 | theirnonceh = response + 1; | |
446 | break; | |
447 | } | |
448 | } | |
449 | ||
450 | if(!theirnonceh || (strlen(theirnonceh) != 32) || !hex_to_int(theirnonceh, theirnonce, sizeof(theirnonce))) { | |
451 | nterface_log(nrl, NL_INFO, "Protocol error drop: %s", socket->permit->hostname->content); | |
452 | return 1; | |
453 | } | |
454 | ||
455 | if(!memcmp(socket->ournonce, theirnonce, sizeof(theirnonce))) { | |
456 | nterface_log(nrl, NL_INFO, "Bad nonce drop: %s", socket->permit->hostname->content); | |
457 | return 1; | |
458 | } | |
459 | ||
460 | if(!strncasecmp(newline, socket->response, sizeof(socket->response))) { | |
461 | int ret; | |
462 | ||
463 | nterface_log(nrl, NL_INFO, "Authed: %s", socket->permit->hostname->content); | |
464 | socket->status = SS_AUTHENTICATED; | |
465 | ret = esocket_write_line(sock, "Oauth"); | |
466 | if(!ret) { | |
467 | switch_buffer_mode(sock, socket->permit->password->content, socket->ournonce, theirnonce); | |
468 | } else { | |
701500af | 469 | return BUF_ERROR; |
18f8bd28 CP |
470 | } |
471 | } else { | |
472 | nterface_log(nrl, NL_INFO, "Bad CR drop: %s", socket->permit->hostname->content); | |
473 | ||
474 | return 1; | |
475 | } | |
476 | break; | |
477 | case SS_AUTHENTICATED: | |
478 | nterface_log(nrl, NL_INFO|NL_LOG_ONLY, "L(%s): %s", socket->permit->hostname->content, newline); | |
479 | reason = nterfacer_new_rline(newline, sock, &number); | |
480 | if(reason) { | |
5757e1ef CP |
481 | if(reason == RE_SOCKET_ERROR) |
482 | return BUF_ERROR; | |
18f8bd28 | 483 | if(reason != RE_BAD_LINE) { |
a690fb9f CP |
484 | if(esocket_write_line(sock, "%d,E%d,%s", number, reason, request_error(reason))) |
485 | return BUF_ERROR; | |
486 | return 0; | |
18f8bd28 CP |
487 | } else { |
488 | return 1; | |
489 | } | |
490 | } | |
491 | break; | |
492 | } | |
493 | ||
494 | return 0; | |
495 | } | |
496 | ||
497 | int nterfacer_new_rline(char *line, struct esocket *socket, int *number) { | |
498 | char *sp, *p, *parsebuf, *pp, commandbuf[MAX_BUFSIZE], *args[MAX_ARGS], *newp; | |
499 | int argcount; | |
500 | struct service_node *service; | |
501 | struct rline *prequest; | |
502 | struct handler *hl; | |
503 | int re; | |
504 | ||
505 | if(!line || !line[0] || (line[0] == ',')) | |
506 | return 0; | |
507 | ||
508 | for(sp=line;*sp;sp++) | |
509 | if(*sp == ',') | |
510 | break; | |
511 | ||
512 | if(!*sp || !*(sp + 1)) | |
513 | return RE_BAD_LINE; | |
514 | ||
515 | *sp = '\0'; | |
516 | ||
517 | for(service=tree;service;service=service->next) | |
518 | if(!strcmp(service->name->content, line)) | |
519 | break; | |
520 | ||
521 | for(p=sp+1;*p;p++) | |
522 | if(*p == ',') | |
523 | break; | |
524 | ||
525 | if(!*p || !(p + 1)) | |
526 | return RE_BAD_LINE; | |
527 | ||
528 | *p = '\0'; | |
529 | *number = positive_atoi(sp + 1); | |
530 | ||
531 | if((*number < 1) || (*number > 0xffff)) | |
532 | return RE_BAD_LINE; | |
533 | ||
534 | if (!service) { | |
535 | nterface_log(nrl, NL_DEBUG, "Unable to find service: %s", line); | |
536 | return RE_SERVICER_NOT_FOUND; | |
537 | } | |
538 | ||
539 | newp = commandbuf; | |
540 | ||
541 | for(pp=p+1;*pp;pp++) { | |
542 | if((*pp == '\\') && *(pp + 1)) { | |
543 | if(*(pp + 1) == ',') { | |
544 | *newp++ = ','; | |
545 | } else if(*(pp + 1) == '\\') { | |
546 | *newp++ = '\\'; | |
547 | } | |
548 | pp++; | |
549 | } else if(*pp == ',') { | |
550 | break; | |
551 | } else { | |
552 | *newp++ = *pp; | |
553 | } | |
554 | } | |
555 | ||
556 | if(*pp == '\0') { /* if we're at the end already, we have no arguments */ | |
557 | argcount = 0; | |
558 | } else { | |
559 | argcount = 1; /* we have a comma, so we have one already */ | |
560 | } | |
561 | ||
562 | *newp = '\0'; | |
563 | ||
564 | for(hl=service->handlers;hl;hl=hl->next) | |
565 | if(!strncmp(hl->command->content, commandbuf, sizeof(commandbuf))) | |
566 | break; | |
567 | ||
568 | if(!hl) | |
569 | return RE_COMMAND_NOT_FOUND; | |
570 | ||
571 | if(argcount) { | |
572 | parsebuf = (char *)malloc(strlen(pp) + 1); | |
573 | MemCheckR(parsebuf, RE_MEM_ERROR); | |
574 | newp = parsebuf; | |
575 | ||
576 | for(newp=args[0]=parsebuf,pp++;*pp;pp++) { | |
577 | if((*pp == '\\') && *(pp + 1)) { | |
578 | if(*(pp + 1) == ',') { | |
579 | *newp++ = ','; | |
580 | } else if(*(pp + 1) == '\\') { | |
581 | *newp++ = '\\'; | |
582 | } | |
583 | pp++; | |
584 | } else if(*pp == ',') { | |
585 | *newp++ = '\0'; | |
586 | args[argcount++] = newp; | |
587 | if(argcount > MAX_ARGS) { | |
588 | free(parsebuf); | |
589 | return RE_TOO_MANY_ARGS; | |
590 | } | |
591 | } else { | |
592 | *newp++ = *pp; | |
593 | } | |
594 | } | |
595 | *newp = '\0'; | |
596 | } | |
597 | if(argcount < hl->args) { | |
598 | if(argcount) | |
599 | free(parsebuf); | |
600 | return RE_WRONG_ARG_COUNT; | |
601 | } | |
602 | ||
603 | prequest = (struct rline *)malloc(sizeof(struct rline)); | |
604 | if(!prequest) { | |
605 | MemError(); | |
606 | if(argcount) | |
607 | free(parsebuf); | |
608 | return RE_MEM_ERROR; | |
609 | } | |
610 | ||
611 | prequest->service = service; | |
612 | prequest->handler = hl; | |
95ee3dac | 613 | prequest->buf[0] = '\0'; |
18f8bd28 CP |
614 | prequest->curpos = prequest->buf; |
615 | prequest->tag = NULL; | |
616 | prequest->id = *number; | |
617 | prequest->next = rlines; | |
618 | prequest->socket = socket; | |
619 | ||
620 | rlines = prequest; | |
a690fb9f | 621 | re = (hl->function)(prequest, argcount, args); |
18f8bd28 CP |
622 | |
623 | if(argcount) | |
624 | free(parsebuf); | |
625 | ||
626 | return re; | |
627 | } | |
628 | ||
629 | void nterfacer_disconnect_event(struct esocket *sock) { | |
630 | struct sconnect *socket = sock->tag; | |
631 | struct rline *li; | |
632 | /* not tested */ | |
633 | ||
634 | nterface_log(nrl, NL_INFO, "Disconnected from %s.", socket->permit->hostname->content); | |
635 | ||
636 | /* not tested */ | |
637 | for(li=rlines;li;li=li->next) | |
638 | if(li->socket->tag == socket) | |
639 | li->socket = NULL; | |
640 | ||
641 | free(socket); | |
642 | } | |
643 | ||
644 | int ri_append(struct rline *li, char *format, ...) { | |
645 | char buf[MAX_BUFSIZE], escapedbuf[MAX_BUFSIZE * 2 + 1], *p, *tp; | |
646 | int sizeleft = sizeof(li->buf) - (li->curpos - li->buf); | |
647 | va_list ap; | |
648 | ||
649 | va_start(ap, format); | |
650 | ||
651 | if(vsnprintf(buf, sizeof(buf), format, ap) >= sizeof(buf)) { | |
652 | va_end(ap); | |
653 | return BF_OVER; | |
654 | } | |
655 | ||
656 | va_end(ap); | |
657 | ||
658 | for(tp=escapedbuf,p=buf;*p||(*tp='\0');*tp++=*p++) | |
659 | if((*p == ',') || (*p == '\\')) | |
660 | *tp++ = '\\'; | |
661 | ||
662 | if(sizeleft > 0) { | |
663 | if(li->curpos == li->buf) { | |
664 | li->curpos+=snprintf(li->curpos, sizeleft, "%s", escapedbuf); | |
665 | } else { | |
666 | li->curpos+=snprintf(li->curpos, sizeleft, ",%s", escapedbuf); | |
667 | } | |
668 | } | |
669 | ||
670 | if(sizeof(li->buf) - (li->curpos - li->buf) > 0) { | |
671 | return BF_OK; | |
672 | } else { | |
673 | return BF_OVER; | |
674 | } | |
675 | } | |
676 | ||
677 | int ri_error(struct rline *li, int error_code, char *format, ...) { | |
678 | char buf[MAX_BUFSIZE], escapedbuf[MAX_BUFSIZE * 2 + 1], *p, *tp; | |
679 | struct rline *pp, *lp = NULL; | |
680 | va_list ap; | |
a690fb9f | 681 | int retval = RE_OK; |
18f8bd28 CP |
682 | |
683 | if(li->socket) { | |
684 | va_start(ap, format); | |
685 | vsnprintf(buf, sizeof(buf), format, ap); | |
686 | va_end(ap); | |
687 | ||
688 | for(tp=escapedbuf,p=buf;*p||(*tp='\0');*tp++=*p++) | |
689 | if((*p == ',') || (*p == '\\')) | |
690 | *tp++ = '\\'; | |
691 | ||
a690fb9f CP |
692 | if(esocket_write_line(li->socket, "%d,OE%d,%s", li->id, error_code, escapedbuf)) |
693 | retval = RE_SOCKET_ERROR; | |
18f8bd28 CP |
694 | } |
695 | ||
696 | for(pp=rlines;pp;lp=pp,pp=pp->next) { | |
697 | if(pp == li) { | |
698 | if(lp) { | |
699 | lp->next = li->next; | |
700 | } else { | |
701 | rlines = li->next; | |
702 | } | |
703 | free(li); | |
704 | break; | |
705 | } | |
706 | } | |
707 | ||
a690fb9f | 708 | return retval; |
18f8bd28 CP |
709 | } |
710 | ||
711 | int ri_final(struct rline *li) { | |
712 | struct rline *pp, *lp = NULL; | |
5757e1ef | 713 | int retval = RE_OK; |
18f8bd28 CP |
714 | |
715 | if(li->socket) | |
5757e1ef CP |
716 | if(esocket_write_line(li->socket, "%d,OO%s", li->id, li->buf)) |
717 | retval = RE_SOCKET_ERROR; | |
718 | ||
18f8bd28 CP |
719 | for(pp=rlines;pp;lp=pp,pp=pp->next) { |
720 | if(pp == li) { | |
721 | if(lp) { | |
722 | lp->next = li->next; | |
723 | } else { | |
724 | rlines = li->next; | |
725 | } | |
726 | free(li); | |
727 | break; | |
728 | } | |
729 | } | |
730 | ||
5757e1ef | 731 | return retval; |
18f8bd28 | 732 | } |
6cf2d6a5 CP |
733 | |
734 | int ping_handler(struct rline *ri, int argc, char **argv) { | |
735 | ri_append(ri, "OK"); | |
736 | return ri_final(ri); | |
737 | } |