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Call trytransferbypeer on done transfer.
[doldaconnect.git] / daemon / transfer.c
CommitLineData
d3372da9 1/*
2 * Dolda Connect - Modular multiuser Direct Connect-style client
3 * Copyright (C) 2004 Fredrik Tolf (fredrik@dolda2000.com)
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18*/
19#include <stdlib.h>
20#include <string.h>
21#include <time.h>
22#include <unistd.h>
23#include <fcntl.h>
24#include <signal.h>
25#include <pwd.h>
26#include <grp.h>
27#include <errno.h>
28#include <sys/wait.h>
29
30#ifdef HAVE_CONFIG_H
31#include <config.h>
32#endif
33#include "log.h"
34#include "utils.h"
35#include "sysevents.h"
36#include "auth.h"
37#include "transfer.h"
38#include "module.h"
429d35e5 39#include "client.h"
d3372da9 40
41static void killfilter(struct transfer *transfer);
42
43struct transfer *transfers = NULL;
44int numtransfers = 0;
45GCBCHAIN(newtransfercb, struct transfer *);
46
47void freetransfer(struct transfer *transfer)
48{
d3372da9 49 if(transfer == transfers)
50 transfers = transfer->next;
51 if(transfer->next != NULL)
52 transfer->next->prev = transfer->prev;
53 if(transfer->prev != NULL)
54 transfer->prev->next = transfer->next;
55 CBCHAINDOCB(transfer, trans_destroy, transfer);
56 CBCHAINFREE(transfer, trans_ac);
57 CBCHAINFREE(transfer, trans_act);
58 CBCHAINFREE(transfer, trans_p);
59 CBCHAINFREE(transfer, trans_destroy);
60 CBCHAINFREE(transfer, trans_filterout);
9ec790e8 61 while(transfer->args != NULL)
62 freewcspair(transfer->args, &transfer->args);
d3372da9 63 if(transfer->filter != -1)
64 killfilter(transfer);
65 if(transfer->etimer != NULL)
66 canceltimer(transfer->etimer);
67 if(transfer->auth != NULL)
68 authputhandle(transfer->auth);
69 if(transfer->peerid != NULL)
70 free(transfer->peerid);
71 if(transfer->peernick != NULL)
72 free(transfer->peernick);
73 if(transfer->path != NULL)
74 free(transfer->path);
75 if(transfer->actdesc != NULL)
76 free(transfer->actdesc);
77 if(transfer->filterbuf != NULL)
78 free(transfer->filterbuf);
429d35e5 79 if(transfer->hash != NULL)
80 freehash(transfer->hash);
d3372da9 81 if(transfer->localend != NULL)
82 {
83 transfer->localend->readcb = NULL;
84 transfer->localend->writecb = NULL;
85 transfer->localend->errcb = NULL;
86 putsock(transfer->localend);
87 }
88 if(transfer->filterout != NULL)
89 {
90 transfer->filterout->readcb = NULL;
91 transfer->filterout->writecb = NULL;
92 transfer->filterout->errcb = NULL;
93 putsock(transfer->filterout);
94 }
95 if(transfer->fn != NULL)
96 putfnetnode(transfer->fn);
97 free(transfer);
98 numtransfers--;
99}
100
101struct transfer *newtransfer(void)
102{
103 struct transfer *new;
104 static int curid = 0;
105
106 new = smalloc(sizeof(*new));
107 memset(new, 0, sizeof(*new));
108 new->id = curid++;
109 new->size = -1;
110 new->endpos = -1;
111 new->filter = -1;
112 CBCHAININIT(new, trans_ac);
113 CBCHAININIT(new, trans_act);
114 CBCHAININIT(new, trans_p);
115 CBCHAININIT(new, trans_destroy);
116 CBCHAININIT(new, trans_filterout);
117 new->next = NULL;
118 new->prev = NULL;
119 time(&new->activity);
120 numtransfers++;
121 return(new);
122}
123
d3372da9 124void transferattach(struct transfer *transfer, struct transferiface *iface, void *data)
125{
126 if(transfer->iface != NULL)
127 transferdetach(transfer);
128 transfer->iface = iface;
129 transfer->ifacedata = data;
130}
131
132void transferdetach(struct transfer *transfer)
133{
134 if(transfer->iface != NULL)
135 {
136 transfer->iface->detach(transfer, transfer->ifacedata);
137 transfer->iface = NULL;
138 transfer->ifacedata = NULL;
139 }
140}
141
2c086721 142struct transfer *finddownload(wchar_t *peerid)
143{
144 struct transfer *transfer;
145
146 for(transfer = transfers; transfer != NULL; transfer = transfer->next)
147 {
148 if((transfer->dir == TRNSD_DOWN) && (transfer->iface == NULL) && !wcscmp(peerid, transfer->peerid))
149 break;
150 }
151 return(transfer);
152}
153
d3372da9 154struct transfer *newupload(struct fnetnode *fn, struct fnet *fnet, wchar_t *nickid, struct transferiface *iface, void *data)
155{
156 struct transfer *transfer;
157
158 transfer = newtransfer();
159 if(fnet != NULL)
160 transfer->fnet = fnet;
161 else
162 transfer->fnet = fn->fnet;
163 transfer->peerid = swcsdup(nickid);
164 transfer->state = TRNS_HS;
165 transfer->dir = TRNSD_UP;
166 if(fn != NULL)
167 getfnetnode(transfer->fn = fn);
168 transferattach(transfer, iface, data);
169 linktransfer(transfer);
170 bumptransfer(transfer);
171 return(transfer);
172}
173
174void linktransfer(struct transfer *transfer)
175{
176 transfer->next = transfers;
177 transfer->prev = NULL;
178 if(transfers != NULL)
179 transfers->prev = transfer;
180 transfers = transfer;
181 GCBCHAINDOCB(newtransfercb, transfer);
182}
183
184void resettransfer(struct transfer *transfer)
185{
186 if(transfer->dir == TRNSD_DOWN)
187 {
188 if(transfer->iface != NULL)
189 transferdetach(transfer);
190 killfilter(transfer);
191 transfersetstate(transfer, TRNS_WAITING);
192 transfersetactivity(transfer, L"reset");
193 return;
194 }
195}
196
197struct transfer *findtransfer(int id)
198{
199 struct transfer *transfer;
200
201 for(transfer = transfers; transfer != NULL; transfer = transfer->next)
202 {
203 if(transfer->id == id)
204 break;
205 }
206 return(transfer);
207}
208
209static void transexpire(int cancelled, struct transfer *transfer)
210{
211 transfer->etimer = NULL;
212 if(!cancelled)
213 bumptransfer(transfer);
214 else
215 transfer->timeout = 0;
216}
217
218static void transferread(struct socket *sk, struct transfer *transfer)
219{
220 if(sockgetdatalen(sk) >= 65536)
221 sk->ignread = 1;
222 if((transfer->iface != NULL) && (transfer->iface->gotdata != NULL))
223 transfer->iface->gotdata(transfer, transfer->ifacedata);
224}
225
226static void transferwrite(struct socket *sk, struct transfer *transfer)
227{
228 if((transfer->iface != NULL) && (transfer->iface->wantdata != NULL))
229 transfer->iface->wantdata(transfer, transfer->ifacedata);
230}
231
232static void transfererr(struct socket *sk, int errno, struct transfer *transfer)
233{
234 if((transfer->iface != NULL) && (transfer->iface->endofdata != NULL))
235 transfer->iface->endofdata(transfer, transfer->ifacedata);
236}
237
238void transferputdata(struct transfer *transfer, void *buf, size_t size)
239{
240 time(&transfer->activity);
241 sockqueue(transfer->localend, buf, size);
242 transfer->curpos += size;
243 CBCHAINDOCB(transfer, trans_p, transfer);
244}
245
246void transferendofdata(struct transfer *transfer)
247{
248 if(transfer->curpos >= transfer->size)
249 {
250 transfersetstate(transfer, TRNS_DONE);
251 transfer->localend->readcb = NULL;
252 transfer->localend->writecb = NULL;
253 transfer->localend->errcb = NULL;
254 putsock(transfer->localend);
255 transfer->localend = NULL;
256 } else {
257 resettransfer(transfer);
258 }
259}
260
261size_t transferdatasize(struct transfer *transfer)
262{
263 return(sockqueuesize(transfer->localend));
264}
265
266void *transfergetdata(struct transfer *transfer, size_t *size)
267{
268 void *buf;
269
270 if(transfer->localend == NULL)
271 return(NULL);
272 transfer->localend->ignread = 0;
273 time(&transfer->activity);
274 if((buf = sockgetinbuf(transfer->localend, size)) == NULL)
275 return(NULL);
276 if((transfer->endpos >= 0) && (transfer->curpos + *size >= transfer->endpos))
277 {
278 *size = transfer->endpos - transfer->curpos;
279 buf = srealloc(buf, *size);
280 }
281 transfer->curpos += *size;
282 CBCHAINDOCB(transfer, trans_p, transfer);
283 return(buf);
284}
285
286void transferprepul(struct transfer *transfer, size_t size, size_t start, size_t end, struct socket *lesk)
287{
288 transfersetsize(transfer, size);
289 transfer->curpos = start;
290 transfer->endpos = end;
291 lesk->ignread = 1;
292 transfersetlocalend(transfer, lesk);
293}
294
2c086721 295void transferstartdl(struct transfer *transfer, struct socket *sk)
296{
297 transfersetstate(transfer, TRNS_MAIN);
298 socksettos(sk, confgetint("transfer", "dltos"));
299}
300
d3372da9 301void transferstartul(struct transfer *transfer, struct socket *sk)
302{
303 transfersetstate(transfer, TRNS_MAIN);
304 socksettos(sk, confgetint("transfer", "ultos"));
305 if(transfer->localend != NULL)
306 transfer->localend->ignread = 0;
307}
308
309void transfersetlocalend(struct transfer *transfer, struct socket *sk)
310{
311 if(transfer->localend != NULL)
312 putsock(transfer->localend);
313 getsock(transfer->localend = sk);
314 sk->data = transfer;
315 sk->readcb = (void (*)(struct socket *, void *))transferread;
316 sk->writecb = (void (*)(struct socket *, void *))transferwrite;
317 sk->errcb = (void (*)(struct socket *, int, void *))transfererr;
318}
319
18f56d13 320static int tryreq(struct transfer *transfer)
d3372da9 321{
322 struct fnetnode *fn;
323 struct fnetpeer *peer;
18f56d13 324
325 if((fn = transfer->fn) != NULL)
326 {
327 if(fn->state != FNN_EST)
328 {
329 transfer->close = 1;
330 return(1);
331 }
332 peer = fnetfindpeer(fn, transfer->peerid);
333 } else {
334 peer = NULL;
335 for(fn = fnetnodes; fn != NULL; fn = fn->next)
336 {
337 if((fn->state == FNN_EST) && (fn->fnet == transfer->fnet) && ((peer = fnetfindpeer(fn, transfer->peerid)) != NULL))
338 break;
339 }
340 }
341 if(peer != NULL)
342 return(fn->fnet->reqconn(peer));
343 return(1);
344}
345
346void trytransferbypeer(struct fnet *fnet, wchar_t *peerid)
347{
348 struct transfer *transfer;
349
350 for(transfer = transfers; transfer != NULL; transfer = transfer->next)
351 {
352 if((transfer->dir == TRNSD_DOWN) && (transfer->state == TRNS_WAITING))
353 {
354 if((transfer->fnet == fnet) && !wcscmp(transfer->peerid, peerid))
355 {
356 if(!tryreq(transfer))
357 return;
358 }
359 }
360 }
361}
362
363void bumptransfer(struct transfer *transfer)
364{
d3372da9 365 time_t now;
366
367 if((now = time(NULL)) < transfer->timeout)
368 {
18f56d13 369
d3372da9 370 if(transfer->etimer == NULL)
371 transfer->etimer = timercallback(transfer->timeout, (void (*)(int, void *))transexpire, transfer);
372 return;
373 }
374 if(transfer->etimer != NULL)
375 canceltimer(transfer->etimer);
376 switch(transfer->state)
377 {
378 case TRNS_WAITING:
d3372da9 379 transfer->etimer = timercallback(transfer->timeout = (time(NULL) + 30), (void (*)(int, void *))transexpire, transfer);
380 if(now - transfer->lastreq > 30)
18f56d13 381 tryreq(transfer);
d3372da9 382 break;
383 case TRNS_HS:
384 if(transfer->dir == TRNSD_UP)
385 {
386 if(now - transfer->activity < 60)
387 transfer->etimer = timercallback(transfer->timeout = (time(NULL) + 60), (void (*)(int, void *))transexpire, transfer);
388 else
389 transfer->close = 1;
390 } else if(transfer->dir == TRNSD_DOWN) {
391 if(now - transfer->activity < 60)
392 transfer->etimer = timercallback(transfer->timeout = (time(NULL) + 60), (void (*)(int, void *))transexpire, transfer);
393 else
394 resettransfer(transfer);
395 }
396 break;
397 case TRNS_MAIN:
398 if(transfer->dir == TRNSD_UP)
399 {
400 if(now - transfer->activity < 300)
401 transfer->etimer = timercallback(transfer->timeout = (time(NULL) + 300), (void (*)(int, void *))transexpire, transfer);
402 else
403 transfer->close = 1;
404 }
405 break;
406 }
407}
408
409void transfersetactivity(struct transfer *transfer, wchar_t *desc)
410{
411 time(&transfer->activity);
412 if(desc != NULL)
413 {
414 if(transfer->actdesc != NULL)
415 free(transfer->actdesc);
416 transfer->actdesc = swcsdup(desc);
417 }
418 bumptransfer(transfer);
419 CBCHAINDOCB(transfer, trans_act, transfer);
420}
421
422void transfersetstate(struct transfer *transfer, int newstate)
423{
424 transfer->state = newstate;
425 if(transfer->etimer != NULL)
426 canceltimer(transfer->etimer);
427 transfersetactivity(transfer, NULL);
428 CBCHAINDOCB(transfer, trans_ac, transfer, L"state");
429}
430
431void transfersetnick(struct transfer *transfer, wchar_t *newnick)
432{
433 if(transfer->peernick != NULL)
434 free(transfer->peernick);
435 transfer->peernick = swcsdup(newnick);
436 CBCHAINDOCB(transfer, trans_ac, transfer, L"nick");
437}
438
439void transfersetsize(struct transfer *transfer, int newsize)
440{
441 transfer->size = newsize;
442 CBCHAINDOCB(transfer, trans_ac, transfer, L"size");
443}
444
445void transferseterror(struct transfer *transfer, int error)
446{
447 transfer->error = error;
448 CBCHAINDOCB(transfer, trans_ac, transfer, L"error");
449}
450
451void transfersetpath(struct transfer *transfer, wchar_t *path)
452{
453 if(transfer->path != NULL)
454 free(transfer->path);
455 transfer->path = swcsdup(path);
456 CBCHAINDOCB(transfer, trans_ac, transfer, L"path");
457}
458
2c086721 459void transfersethash(struct transfer *transfer, struct hash *hash)
460{
461 if(transfer->hash != NULL)
462 freehash(transfer->hash);
463 transfer->hash = hash;
464 CBCHAINDOCB(transfer, trans_ac, transfer, L"hash");
465}
466
d3372da9 467int slotsleft(void)
468{
469 struct transfer *transfer;
470 int slots;
471
472 slots = confgetint("transfer", "slots");
473 for(transfer = transfers; (transfer != NULL) && (slots > 0); transfer = transfer->next)
474 {
475 if((transfer->dir == TRNSD_UP) && (transfer->state == TRNS_MAIN) && !transfer->flags.b.minislot)
476 slots--;
477 }
478 return(slots);
479}
480
481static void killfilter(struct transfer *transfer)
482{
483 if(transfer->filter != -1)
484 {
485 kill(-transfer->filter, SIGHUP);
486 transfer->filter = -1;
487 }
488 if(transfer->localend)
489 {
490 transfer->localend->readcb = NULL;
491 transfer->localend->writecb = NULL;
492 transfer->localend->errcb = NULL;
493 putsock(transfer->localend);
494 transfer->localend = NULL;
495 }
496 if(transfer->filterout)
497 {
498 transfer->filterout->readcb = NULL;
499 putsock(transfer->filterout);
500 transfer->filterout = NULL;
501 }
502 if(transfer->filterbuf)
503 {
504 free(transfer->filterbuf);
505 transfer->filterbuf = NULL;
506 }
507 transfer->filterbufsize = transfer->filterbufdata = 0;
508}
509
510static char *findfilter(struct passwd *pwd)
511{
512 char *path, *filtername;
513
514 if((path = sprintf2("%s/.dcdl-filter", pwd->pw_dir)) != NULL)
515 {
516 if(!access(path, X_OK))
517 return(path);
518 free(path);
519 }
520 if((filtername = icwcstombs(confgetstr("transfer", "filter"), NULL)) == NULL)
521 {
522 flog(LOG_WARNING, "could not convert filter name into local charset: %s", strerror(errno));
523 } else {
524 if(strchr(filtername, '/') == NULL)
525 {
526 if((path = sprintf2("/etc/%s", filtername)) != NULL)
527 {
528 if(!access(path, X_OK))
529 {
530 free(filtername);
531 return(path);
532 }
533 free(path);
534 }
535 if((path = sprintf2("/usr/etc/%s", filtername)) != NULL)
536 {
537 if(!access(path, X_OK))
538 {
539 free(filtername);
540 return(path);
541 }
542 free(path);
543 }
544 if((path = sprintf2("/usr/local/etc/%s", filtername)) != NULL)
545 {
546 if(!access(path, X_OK))
547 {
548 free(filtername);
549 return(path);
550 }
551 free(path);
552 }
553 } else {
554 if(!access(filtername, X_OK))
555 return(filtername);
556 }
557 free(filtername);
558 }
559 return(NULL);
560}
561
562static void filterread(struct socket *sk, struct transfer *transfer)
563{
564 char *buf, *p, *p2;
565 size_t bufsize;
566 wchar_t *cmd, *arg;
567
568 if((buf = sockgetinbuf(sk, &bufsize)) == NULL)
569 return;
570 bufcat(transfer->filterbuf, buf, bufsize);
571 free(buf);
572 if((p = memchr(transfer->filterbuf, '\n', transfer->filterbufdata)) != NULL)
573 {
574 *(p++) = 0;
575 if((p2 = strchr(transfer->filterbuf, ' ')) != NULL)
576 *(p2++) = 0;
577 if((cmd = icmbstowcs(transfer->filterbuf, NULL)) != NULL)
578 {
579 arg = NULL;
580 if(p2 != NULL)
581 {
582 if((arg = icmbstowcs(p2, NULL)) == NULL)
583 flog(LOG_WARNING, "filter sent a string which could not be converted into the local charset: %s: %s", transfer->filterbuf, strerror(errno));
584 }
585 CBCHAINDOCB(transfer, trans_filterout, transfer, cmd, arg);
586 if(arg != NULL)
587 free(arg);
588 free(cmd);
589 } else {
590 flog(LOG_WARNING, "filter sent a string which could not be converted into the local charset: %s: %s", transfer->filterbuf, strerror(errno));
591 }
592 memmove(transfer->filterbuf, p, transfer->filterbufdata -= (p - transfer->filterbuf));
593 }
594}
595
596static void filterexit(pid_t pid, int status, void *data)
597{
598 struct transfer *transfer;
599
600 for(transfer = transfers; transfer != NULL; transfer = transfer->next)
601 {
602 if(transfer->filter == pid)
603 {
604 transfer->filter = -1;
605 killfilter(transfer);
606 if(WEXITSTATUS(status))
607 {
608 resettransfer(transfer);
609 } else {
610 freetransfer(transfer);
611 }
a751b0d3 612 trytransferbypeer(transfer->fnet, transfer->peerid);
d3372da9 613 break;
614 }
615 }
616}
617
618int forkfilter(struct transfer *transfer)
619{
620 char *filtername, *filename, *peerid, *buf;
621 wchar_t *wfilename;
622 struct passwd *pwent;
623 pid_t pid;
624 int inpipe, outpipe;
625 char **argv;
626 size_t argvsize, argvdata;
627 struct socket *insock, *outsock;
9ec790e8 628 struct wcspair *ta;
d3372da9 629 char *rec, *val;
630
631 wfilename = transfer->path;
632 if(transfer->fnet->filebasename != NULL)
633 wfilename = transfer->fnet->filebasename(wfilename);
634 if(transfer->auth == NULL)
635 {
636 flog(LOG_WARNING, "tried to fork filter for transfer with NULL authhandle (tranfer %i)", transfer->id);
637 errno = EACCES;
638 return(-1);
639 }
640 if((pwent = getpwuid(transfer->owner)) == NULL)
641 {
642 flog(LOG_WARNING, "no passwd entry for uid %i (found in transfer %i)", transfer->owner, transfer->id);
643 errno = EACCES;
644 return(-1);
645 }
646 if((filtername = findfilter(pwent)) == NULL)
647 {
648 flog(LOG_WARNING, "could not find filter for user %s", pwent->pw_name);
649 errno = ENOENT;
650 return(-1);
651 }
652 if((filename = icwcstombs(wfilename, NULL)) == NULL)
653 {
654 if((buf = icwcstombs(wfilename, "UTF-8")) == NULL)
655 {
656 flog(LOG_WARNING, "could convert transfer filename to neither local charset nor UTF-8: %s", strerror(errno));
657 return(-1);
658 }
659 filename = sprintf2("utf8-%s", buf);
660 free(buf);
661 }
662 if((peerid = icwcstombs(transfer->peerid, NULL)) == NULL)
663 {
664 if((buf = icwcstombs(transfer->peerid, "UTF-8")) == NULL)
665 {
666 flog(LOG_WARNING, "could convert transfer peerid to neither local charset nor UTF-8: %s", strerror(errno));
667 free(filename);
668 return(-1);
669 }
670 peerid = sprintf2("utf8-%s", buf);
671 free(buf);
672 }
673 if((pid = forksess(transfer->owner, transfer->auth, filterexit, NULL, FD_PIPE, 0, O_WRONLY, &inpipe, FD_PIPE, 1, O_RDONLY, &outpipe, FD_FILE, 2, O_RDWR, "/dev/null", FD_END)) < 0)
674 {
675 flog(LOG_WARNING, "could not fork session for filter for transfer %i: %s", transfer->id, strerror(errno));
676 return(-1);
677 }
678 if(pid == 0)
679 {
680 argv = NULL;
681 argvsize = argvdata = 0;
682 buf = sprintf2("%i", transfer->size);
683 addtobuf(argv, filtername);
684 addtobuf(argv, filename);
685 addtobuf(argv, buf);
686 addtobuf(argv, peerid);
082b0419 687 if(transfer->hash)
688 {
689 if((buf = icwcstombs(unparsehash(transfer->hash), NULL)) != NULL)
690 {
691 /* XXX: I am very doubtful of this, but it can just as
692 * well be argued that all data should be presented as
693 * key-value pairs. */
694 addtobuf(argv, "hash");
695 addtobuf(argv, buf);
696 } else {
697 flog(LOG_WARNING, "could not convert hash to local charset");
698 }
699 }
d3372da9 700 for(ta = transfer->args; ta != NULL; ta = ta->next)
701 {
9ec790e8 702 if((rec = icwcstombs(ta->key, NULL)) == NULL)
d3372da9 703 continue;
704 if((val = icwcstombs(ta->val, NULL)) == NULL)
705 continue;
706 addtobuf(argv, rec);
707 addtobuf(argv, val);
708 }
709 addtobuf(argv, NULL);
710 execv(filtername, argv);
711 flog(LOG_WARNING, "could not exec filter %s: %s", filtername, strerror(errno));
712 exit(127);
713 }
714 insock = wrapsock(inpipe);
715 outsock = wrapsock(outpipe);
716 /* Really, really strange thing here - sometimes the kernel would
717 * return POLLIN on insock, even though it's a write-side
718 * pipe. The corresponding read on the pipe naturally returns
719 * EBADF, causing doldacond to think there's something wrong with
720 * the fd, and thus it closes it. Until I can find out whyever the
721 * kernel gives a POLLIN on the fd (if I can at all...), I'll just
722 * set ignread on insock for now. */
723 insock->ignread = 1;
724 transfer->filter = pid;
725 transfersetlocalend(transfer, insock);
726 getsock(transfer->filterout = outsock);
727 outsock->data = transfer;
728 outsock->readcb = (void (*)(struct socket *, void *))filterread;
729 putsock(insock);
730 putsock(outsock);
731 free(filtername);
732 free(filename);
733 free(peerid);
734 return(0);
735}
736
737static int run(void)
738{
739 struct transfer *transfer, *next;
740
741 for(transfer = transfers; transfer != NULL; transfer = transfer->next)
742 {
743 if((transfer->endpos >= 0) && (transfer->state == TRNS_MAIN) && (transfer->localend != NULL) && (transfer->localend->state == SOCK_EST) && (transfer->curpos >= transfer->endpos))
744 {
745 if((transfer->iface != NULL) && (transfer->iface->endofdata != NULL))
746 transfer->iface->endofdata(transfer, transfer->ifacedata);
747 closesock(transfer->localend);
748 }
749 }
750 for(transfer = transfers; transfer != NULL; transfer = next)
751 {
752 next = transfer->next;
753 if(transfer->close)
754 {
755 transferdetach(transfer);
756 freetransfer(transfer);
757 continue;
758 }
759 }
760 return(0);
761}
762
763static struct configvar myvars[] =
764{
765 {CONF_VAR_INT, "slots", {.num = 3}},
766 {CONF_VAR_INT, "ultos", {.num = SOCK_TOS_MAXTP}},
767 {CONF_VAR_INT, "dltos", {.num = SOCK_TOS_MAXTP}},
768 {CONF_VAR_STRING, "filter", {.str = L"dc-filter"}},
769 {CONF_VAR_END}
770};
771
772static struct module me =
773{
774 .conf =
775 {
776 .vars = myvars
777 },
778 .name = "transfer",
779 .run = run
780};
781
782MODULE(me);
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