2 * File transfer (OFT) and DirectIM (ODC).
3 * (OSCAR File Transfer, Oscar Direct Connect(ion?)
12 #include <sys/socket.h>
13 #include <netinet/in.h>
14 #include <sys/utsname.h> /* for aim_directim_initiate */
16 #include <arpa/inet.h> /* for inet_ntoa */
21 o look for memory leaks.. there's going to be shitloads, i'm sure.
24 struct aim_directim_intdata {
30 static int listenestablish(fu16_t portnum);
31 static struct aim_fileheader_t *aim_oft_getfh(unsigned char *hdr);
34 * aim_handlerendconnect - call this to accept OFT connections and set up the required structures
36 * @cur: the conn the incoming connection is on
38 * call this when you get an outstanding read on a conn with subtype
39 * AIM_CONN_SUBTYPE_RENDEZVOUS_OUT, it will clone the current
40 * &aim_conn_t and tweak things as appropriate. the new conn and the
41 * listener conn are both returned to the client in the
42 * %AIM_CB_FAM_OFT, %AIM_CB_OFT_<CLASS>INITIATE callback.
44 faim_export int aim_handlerendconnect(aim_session_t *sess, aim_conn_t *cur)
47 struct sockaddr cliaddr;
48 int clilen = sizeof(cliaddr);
52 if ((acceptfd = accept(cur->fd, &cliaddr, &clilen)) == -1)
53 return 0; /* not an error */
55 if (cliaddr.sa_family != AF_INET) { /* just in case IPv6 really is happening */
61 if (!(newconn = aim_cloneconn(sess, cur))) {
67 newconn->type = AIM_CONN_TYPE_RENDEZVOUS;
68 newconn->fd = acceptfd;
70 if (newconn->subtype == AIM_CONN_SUBTYPE_OFT_DIRECTIM) {
71 struct aim_directim_intdata *priv;
72 aim_rxcallback_t userfunc;
74 priv = (struct aim_directim_intdata *)(newconn->internal = cur->internal);
77 snprintf(priv->ip, sizeof(priv->ip), "%s:%u",
78 inet_ntoa(((struct sockaddr_in *)&cliaddr)->sin_addr),
79 ntohs(((struct sockaddr_in *)&cliaddr)->sin_port));
81 if ((userfunc = aim_callhandler(sess, newconn, AIM_CB_FAM_OFT, AIM_CB_OFT_DIRECTIMINITIATE)))
82 ret = userfunc(sess, NULL, newconn, cur);
84 } else if (newconn->subtype == AIM_CONN_SUBTYPE_OFT_GETFILE) {
86 struct aim_filetransfer_priv *priv;
87 aim_rxcallback_t userfunc;
90 newconn->priv = cur->priv;
92 priv = (struct aim_filetransfer_priv *)newconn->priv;
94 snprintf(priv->ip, sizeof(priv->ip), "%s:%u", inet_ntoa(((struct sockaddr_in *)&cliaddr)->sin_addr), ntohs(((struct sockaddr_in *)&cliaddr)->sin_port));
96 if ((userfunc = aim_callhandler(sess, newconn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILEINITIATE)))
97 ret = userfunc(sess, NULL, newconn, cur);
100 faimdprintf(sess, 1,"Got a Connection on a listener that's not Rendezvous(??!) Closing conn.\n");
101 aim_conn_close(newconn);
109 * aim_send_im_direct - send IM client-to-client over established connection
110 * @sess: session to conn
111 * @conn: directim connection
112 * @msg: null-terminated string to send; if this is NULL, it will send a "typing" notice.
114 * Call this just like you would aim_send_im, to send a directim. You
115 * _must_ have previously established the directim connection.
117 faim_export int aim_send_im_direct(aim_session_t *sess, aim_conn_t *conn, const char *msg)
119 struct aim_directim_intdata *intdata = (struct aim_directim_intdata *)conn->internal;
121 aim_bstream_t hdrbs; /* XXX this should be within aim_frame_t */
123 if (!sess || !conn || (conn->type != AIM_CONN_TYPE_RENDEZVOUS))
126 if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_OFT, 0x01, strlen(msg))))
129 memcpy(fr->hdr.oft.magic, "ODC2", 4);
131 fr->hdr.oft.hdr2len = 0x44;
133 if (!(fr->hdr.oft.hdr2 = calloc(1, fr->hdr.oft.hdr2len))) {
134 aim_frame_destroy(fr);
138 aim_bstream_init(&hdrbs, fr->hdr.oft.hdr2, fr->hdr.oft.hdr2len);
140 aimbs_put16(&hdrbs, 0x0006);
141 aimbs_put16(&hdrbs, 0x0000);
142 aimbs_putraw(&hdrbs, intdata->cookie, 8);
143 aimbs_put16(&hdrbs, 0x0000);
144 aimbs_put16(&hdrbs, 0x0000);
145 aimbs_put16(&hdrbs, 0x0000);
146 aimbs_put16(&hdrbs, 0x0000);
147 aimbs_put32(&hdrbs, strlen(msg));
148 aimbs_put16(&hdrbs, 0x0000);
149 aimbs_put16(&hdrbs, 0x0000);
150 aimbs_put16(&hdrbs, 0x0000);
152 /* flags -- 0x000e for "typing", 0x0000 for message */
153 aimbs_put16(&hdrbs, msg ? 0x0000 : 0x000e);
155 aimbs_put16(&hdrbs, 0x0000);
156 aimbs_put16(&hdrbs, 0x0000);
157 aimbs_putraw(&hdrbs, sess->sn, strlen(sess->sn));
159 aim_bstream_setpos(&hdrbs, 52); /* bleeehh */
161 aimbs_put8(&hdrbs, 0x00);
162 aimbs_put16(&hdrbs, 0x0000);
163 aimbs_put16(&hdrbs, 0x0000);
164 aimbs_put16(&hdrbs, 0x0000);
165 aimbs_put16(&hdrbs, 0x0000);
166 aimbs_put16(&hdrbs, 0x0000);
167 aimbs_put16(&hdrbs, 0x0000);
168 aimbs_put16(&hdrbs, 0x0000);
173 #if 0 /* XXX this is how you send buddy icon info... */
174 i += aimutil_put16(newpacket->hdr.oft.hdr2+i, 0x0008);
175 i += aimutil_put16(newpacket->hdr.oft.hdr2+i, 0x000c);
176 i += aimutil_put16(newpacket->hdr.oft.hdr2+i, 0x0000);
177 i += aimutil_put16(newpacket->hdr.oft.hdr2+i, 0x1466);
178 i += aimutil_put16(newpacket->hdr.oft.hdr2+i, 0x0001);
179 i += aimutil_put16(newpacket->hdr.oft.hdr2+i, 0x2e0f);
180 i += aimutil_put16(newpacket->hdr.oft.hdr2+i, 0x393e);
181 i += aimutil_put16(newpacket->hdr.oft.hdr2+i, 0xcac8);
183 aimbs_putraw(&fr->data, msg, strlen(msg));
186 aim_tx_enqueue(sess, fr);
191 /* XXX: give the client author the responsibility of setting up a
192 * listener, then we no longer have a libfaim problem with broken
193 * solaris *innocent smile* -jbm */
195 static int getlocalip(fu8_t *ip)
197 struct hostent *hptr;
200 /* XXX if available, use getaddrinfo() */
201 /* XXX allow client to specify which IP to use for multihomed boxes */
203 if (gethostname(localhost, 128) < 0)
206 if (!(hptr = gethostbyname(localhost)))
209 memcpy(ip, hptr->h_addr_list[0], 4);
214 /* XXX this should probably go in im.c */
215 static int aim_request_directim(aim_session_t *sess, aim_conn_t *conn, const char *destsn, fu8_t *ip, fu16_t port, fu8_t *ckret)
220 aim_tlvlist_t *tl = NULL, *itl = NULL;
225 if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x02, 256+strlen(destsn))))
228 snacid = aim_cachesnac(sess, 0x0004, 0x0006, 0x0000, NULL, 0);
229 aim_putsnac(&fr->data, 0x0004, 0x0006, 0x0000, snacid);
232 * Generate a random message cookie
234 * This cookie needs to be alphanumeric and NULL-terminated to be
237 * XXX have I mentioned these should be generated in msgcookie.c?
240 for (i = 0; i < 7; i++)
241 ck[i] = 0x30 + ((fu8_t) rand() % 10);
245 memcpy(ckret, ck, 8);
248 aimbs_putraw(&fr->data, ck, 8);
251 aimbs_put16(&fr->data, 0x0002);
254 aimbs_put8(&fr->data, strlen(destsn));
255 aimbs_putraw(&fr->data, destsn, strlen(destsn));
257 aim_addtlvtochain_noval(&tl, 0x0003);
259 hdrlen = 2+8+16+6+8+6+4;
260 hdr = malloc(hdrlen);
261 aim_bstream_init(&hdrbs, hdr, hdrlen);
263 aimbs_put16(&hdrbs, 0x0000);
264 aimbs_putraw(&hdrbs, ck, 8);
265 aim_putcap(&hdrbs, AIM_CAPS_IMIMAGE);
267 aim_addtlvtochain16(&itl, 0x000a, 0x0001);
268 aim_addtlvtochain_raw(&itl, 0x0003, 4, ip);
269 aim_addtlvtochain16(&itl, 0x0005, port);
270 aim_addtlvtochain_noval(&itl, 0x000f);
272 aim_writetlvchain(&hdrbs, &itl);
274 aim_addtlvtochain_raw(&tl, 0x0005, aim_bstream_curpos(&hdrbs), hdr);
276 aim_writetlvchain(&fr->data, &tl);
279 aim_freetlvchain(&itl);
280 aim_freetlvchain(&tl);
282 aim_tx_enqueue(sess, fr);
288 * aim_directim_intitiate - For those times when we want to open up the directim channel ourselves.
289 * @sess: your session,
290 * @conn: the BOS conn,
291 * @priv: a dummy priv value (we'll let it get filled in later) (if you pass a %NULL, we alloc one)
292 * @destsn: the SN to connect to.
295 faim_export aim_conn_t *aim_directim_initiate(aim_session_t *sess, aim_conn_t *conn, const char *destsn)
298 aim_msgcookie_t *cookie;
299 struct aim_directim_intdata *priv;
305 if (getlocalip(localip) == -1)
308 if ((listenfd = listenestablish(port)) == -1)
311 aim_request_directim(sess, conn, destsn, localip, port, ck);
313 cookie = (aim_msgcookie_t *)calloc(1, sizeof(aim_msgcookie_t));
314 memcpy(cookie->cookie, ck, 8);
315 cookie->type = AIM_COOKIETYPE_OFTIM;
317 priv = (struct aim_directim_intdata *)calloc(1, sizeof(struct aim_directim_intdata));
319 memcpy(priv->cookie, ck, 8);
320 memcpy(priv->sn, destsn, sizeof(priv->sn));
322 aim_cachecookie(sess, cookie);
324 /* XXX switch to aim_cloneconn()? */
325 if (!(newconn = aim_newconn(sess, AIM_CONN_TYPE_RENDEZVOUS_OUT, NULL))) {
330 /* this one is for the conn */
331 priv = (struct aim_directim_intdata *)calloc(1, sizeof(struct aim_directim_intdata));
333 memcpy(priv->cookie, ck, 8);
334 memcpy(priv->sn, destsn, sizeof(priv->sn));
336 newconn->fd = listenfd;
337 newconn->subtype = AIM_CONN_SUBTYPE_OFT_DIRECTIM;
338 newconn->internal = priv;
339 newconn->lastactivity = time(NULL);
341 faimdprintf(sess, 2,"faim: listening (fd = %d, unconnected)\n", newconn->fd);
348 * unsigned int aim_oft_listener_clean - close up old listeners
349 * @sess: session to clean up in
350 * @age: maximum age in seconds
352 * returns number closed, -1 on error.
354 faim_export unsigned int aim_oft_listener_clean(struct aim_session_t *sess, time_t age)
356 struct aim_conn_t *cur;
358 unsigned int hit = 0;
363 faim_mutex_lock(&sess->connlistlock);
364 for(cur = sess->connlist;cur; cur = cur->next)
365 if (cur->type == AIM_CONN_TYPE_RENDEZVOUS_OUT) {
366 faim_mutex_lock(&cur->active);
367 if (cur->lastactivity < (now - age) ) {
368 faim_mutex_unlock(&cur->active);
372 faim_mutex_unlock(&cur->active);
374 faim_mutex_unlock(&sess->connlistlock);
379 faim_export const char *aim_directim_getsn(aim_conn_t *conn)
381 struct aim_directim_intdata *intdata;
386 if ((conn->type != AIM_CONN_TYPE_RENDEZVOUS) ||
387 (conn->subtype != AIM_CONN_SUBTYPE_OFT_DIRECTIM))
393 intdata = (struct aim_directim_intdata *)conn->internal;
399 * aim_directim_connect - connect to buddy for directim
400 * @sess: the session to append the conn to,
401 * @sn: the SN we're connecting to
402 * @addr: address to connect to
404 * This is a wrapper for aim_newconn.
406 * If addr is NULL, the socket is not created, but the connection is
407 * allocated and setup to connect.
410 faim_export aim_conn_t *aim_directim_connect(aim_session_t *sess, const char *sn, const char *addr, const fu8_t *cookie)
413 struct aim_directim_intdata *intdata;
418 if (!(intdata = malloc(sizeof(struct aim_directim_intdata))))
420 memset(intdata, 0, sizeof(struct aim_directim_intdata));
422 memcpy(intdata->cookie, cookie, 8);
423 strncpy(intdata->sn, sn, sizeof(intdata->sn));
424 strncpy(intdata->ip, addr, sizeof(intdata->ip));
426 /* XXX verify that non-blocking connects actually work */
427 if (!(newconn = aim_newconn(sess, AIM_CONN_TYPE_RENDEZVOUS, addr))) {
432 if (!newconn || (newconn->fd == -1)) {
437 newconn->subtype = AIM_CONN_SUBTYPE_OFT_DIRECTIM;
438 newconn->internal = intdata;
444 * aim_directim_getconn - find a directim conn for buddy name
445 * @sess: your session,
446 * @name: the name to get,
448 * returns conn for directim with name, %NULL if none found.
451 faim_export aim_conn_t *aim_directim_getconn(aim_session_t *sess, const char *name)
455 if (!sess || !name || !strlen(name))
458 for (cur = sess->connlist; cur; cur = cur->next) {
459 struct aim_directim_intdata *intdata;
461 if ((cur->type != AIM_CONN_TYPE_RENDEZVOUS) || (cur->subtype != AIM_CONN_SUBTYPE_OFT_DIRECTIM))
464 intdata = cur->internal;
466 if (aim_sncmp(intdata->sn, name) == 0)
474 * aim_accepttransfer - accept a file transfer request
475 * @sess: the session,
476 * @conn: the BOS conn for the CAP reply
477 * @sn: the screenname to send it to,
478 * @cookie: the cookie used
479 * @ip: the ip to connect to
480 * @listingfiles: number of files to share
481 * @listingtotsize: total size of shared files
482 * @listingsize: length of the listing file(buffer)
483 * @listingchecksum: checksum of the listing
484 * @rendid: capability type (%AIM_CAPS_GETFILE or %AIM_CAPS_SENDFILE)
486 * Returns new connection or %NULL on error.
488 * XXX this should take a struct.
490 faim_export aim_conn_t *aim_accepttransfer(aim_session_t *sess,
492 const char *sn, const fu8_t *cookie,
495 fu16_t listingtotsize,
497 fu32_t listingchecksum,
502 struct command_tx_struct *newpacket, *newoft;
503 struct aim_conn_t *newconn;
504 struct aim_fileheader_t *fh;
505 struct aim_filetransfer_priv *priv;
506 struct aim_msgcookie_t *cachedcook;
509 if (!sess || !conn || !sn || !cookie || !ip) {
513 newconn = aim_newconn(sess, AIM_CONN_TYPE_RENDEZVOUS, ip);
515 if (!newconn || (newconn->fd == -1)) {
516 perror("aim_newconn");
517 faimdprintf(sess, 2, "could not connect to %s (fd: %i)\n", ip, newconn?newconn->fd:0);
520 priv = (struct aim_filetransfer_priv *)calloc(1, sizeof(struct aim_filetransfer_priv));
522 memcpy(priv->cookie, cookie, 8);
524 strncpy(priv->sn, sn, MAXSNLEN);
525 strncpy(priv->ip, ip, sizeof(priv->ip));
526 newconn->priv = (void *)priv;
528 faimdprintf(sess, 2, "faim: connected to peer (fd = %d)\n", newconn->fd);
531 if (rendid == AIM_CAPS_GETFILE) {
532 newconn->subtype = AIM_CONN_SUBTYPE_OFT_GETFILE;
534 faimdprintf(sess, 2, "faim: getfile request accept\n");
536 if (!(newoft = aim_tx_new(sess, newconn, AIM_FRAMETYPE_OFT, 0x1108, 0))) {
537 faimdprintf(sess, 2, "faim: aim_accepttransfer: tx_new OFT failed\n");
538 /* XXX: conn leak here */
543 memcpy(newoft->hdr.oft.magic, "OFT2", 4);
544 newoft->hdr.oft.hdr2len = 0x100 - 8;
546 if (!(fh = (struct aim_fileheader_t*)calloc(1, sizeof(struct aim_fileheader_t)))) {
547 /* XXX: conn leak here */
552 fh->encrypt = 0x0000;
553 fh->compress = 0x0000;
554 fh->totfiles = listingfiles;
555 fh->filesleft = listingfiles; /* is this right -- total parts and parts left?*/
556 fh->totparts = 0x0001;
557 fh->partsleft = 0x0001;
558 fh->totsize = listingtotsize;
559 fh->size = listingsize; /* ls -l listing.txt */
560 fh->modtime = (int)time(NULL); /* we'll go with current time for now */
561 fh->checksum = listingchecksum;
562 fh->rfcsum = 0x00000000;
563 fh->rfsize = 0x00000000;
564 fh->cretime = 0x00000000;
565 fh->rfcsum = 0x00000000;
566 fh->nrecvd = 0x00000000;
567 fh->recvcsum = 0x00000000;
568 memset(fh->idstring, 0, sizeof(fh->idstring));
569 memcpy(fh->idstring, "OFT_Windows ICBMFT V1.1 32", sizeof(fh->idstring));
571 fh->lnameoffset = 0x1a;
572 fh->lsizeoffset = 0x10;
573 memset(fh->dummy, 0, sizeof(fh->dummy));
574 memset(fh->macfileinfo, 0, sizeof(fh->macfileinfo));
576 /* we need to figure out these encodings for filenames */
577 fh->nencode = 0x0000;
578 fh->nlanguage = 0x0000;
579 memset(fh->name, 0, sizeof(fh->name));
580 memcpy(fh->name, "listing.txt", sizeof(fh->name));
582 if (!(newoft->hdr.oft.hdr2 = (char *)calloc(1,newoft->hdr.oft.hdr2len))) {
584 aim_frame_destroy(newoft);
586 perror("calloc (1)");
590 memcpy(fh->bcookie, cookie, 8);
592 if (!(aim_oft_buildheader((unsigned char *)newoft->hdr.oft.hdr2, fh)))
593 faimdprintf(sess, 1, "eek, bh fail!\n");
596 aim_tx_enqueue(sess, newoft);
598 if (!(cachedcook = (struct aim_msgcookie_t *)calloc(1, sizeof(struct aim_msgcookie_t)))) {
599 faimdprintf(sess, 1, "faim: accepttransfer: couldn't calloc cachedcook. yeep!\n");
600 /* XXX: more cleanup, conn leak */
601 perror("calloc (2)");
605 memcpy(&(priv->fh), fh, sizeof(struct aim_fileheader_t));
606 memcpy(cachedcook->cookie, cookie, 8);
608 cachedcook->type = AIM_COOKIETYPE_OFTGET;
609 cachedcook->data = (void *)priv;
611 if (aim_cachecookie(sess, cachedcook) == -1)
612 faimdprintf(sess, 1, "faim: ERROR caching message cookie\n");
616 /* OSCAR CAP accept packet */
618 if (!(newpacket = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 10+8+2+1+strlen(sn)+4+2+8+16))) {
626 curbyte = aim_putsnac(newpacket->data, 0x0004, 0x0006, 0x0000, sess->snac_nextid);
628 for (i = 0; i < 8; i++)
629 curbyte += aimutil_put8(newpacket->data+curbyte, cookie[i]);
631 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0002);
632 curbyte += aimutil_put8(newpacket->data+curbyte, strlen(sn));
633 curbyte += aimutil_putstr(newpacket->data+curbyte, sn, strlen(sn));
634 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0005);
635 curbyte += aimutil_put16(newpacket->data+curbyte, 0x001a);
636 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0002 /* accept*/);
638 for (i = 0;i < 8; i++)
639 curbyte += aimutil_put8(newpacket->data+curbyte, cookie[i]);
641 curbyte += aim_putcap(newpacket->data+curbyte, 0x10, rendid);
643 aim_tx_enqueue(sess, newpacket);
650 * aim_getlisting(FILE *file) -- get an aim_fileheader_t for a given FILE*
651 * @file is an opened listing file
653 * returns a pointer to the filled-in fileheader_t
655 * Currently omits checksum. we'll fix this when AOL breaks us, i
659 faim_export struct aim_fileheader_t *aim_getlisting(aim_session_t *sess, FILE *file)
663 struct aim_fileheader_t *fh;
664 u_long totsize = 0, size = 0, checksum = 0xffff0000;
666 char *linebuf, sizebuf[9];
668 int linelength = 1024;
670 /* XXX: if we have a line longer than 1024chars, God help us. */
671 if ( (linebuf = (char *)calloc(1, linelength)) == NULL ) {
672 faimdprintf(sess, 2, "linebuf calloc failed\n");
676 if (fseek(file, 0, SEEK_END) == -1) { /* use this for sanity check */
677 perror("getlisting END1 fseek:");
678 faimdprintf(sess, 2, "getlising fseek END1 error\n");
681 if ((size = ftell(file)) == -1) {
682 perror("getlisting END1 getpos:");
683 faimdprintf(sess, 2, "getlising getpos END1 error\n");
686 if (fseek(file, 0, SEEK_SET) != 0) {
687 perror("getlesting fseek(SET):");
688 faimdprintf(sess, 2, "faim: getlisting: couldn't seek to beginning of listing file\n");
691 memset(linebuf, 0, linelength);
695 while(fgets(linebuf, linelength, file)) {
697 memset(sizebuf, 0, 9);
699 size += strlen(linebuf);
701 if (strlen(linebuf) < 23) {
702 faimdprintf(sess, 2, "line \"%s\" too short. skipping\n", linebuf);
705 if (linebuf[strlen(linebuf)-1] != '\n') {
706 faimdprintf(sess, 2, "faim: OFT: getlisting -- hit EOF or line too long!\n");
709 memcpy(sizebuf, linebuf+17, 8);
711 totsize += strtol(sizebuf, NULL, 10);
712 memset(linebuf, 0, linelength);
715 if (fseek(file, 0, SEEK_SET) == -1) {
716 perror("getlisting END2 fseek:");
717 faimdprintf(sess, 2, "getlising fseek END2 error\n");
722 /* we're going to ignore checksumming the data for now -- that
723 * requires walking the whole listing.txt. it should probably be
724 * done at register time and cached, but, eh. */
726 if (!(fh = (struct aim_fileheader_t*)calloc(1, sizeof(struct aim_fileheader_t))))
729 fh->encrypt = 0x0000;
730 fh->compress = 0x0000;
731 fh->totfiles = totfiles;
732 fh->filesleft = totfiles; /* is this right ?*/
733 fh->totparts = 0x0001;
734 fh->partsleft = 0x0001;
735 fh->totsize = totsize;
736 fh->size = size; /* ls -l listing.txt */
737 fh->modtime = (int)time(NULL); /* we'll go with current time for now */
738 fh->checksum = checksum; /* XXX: checksum ! */
739 fh->rfcsum = 0x00000000;
740 fh->rfsize = 0x00000000;
741 fh->cretime = 0x00000000;
742 fh->rfcsum = 0x00000000;
743 fh->nrecvd = 0x00000000;
744 fh->recvcsum = 0x00000000;
746 /* memset(fh->idstring, 0, sizeof(fh->idstring)); */
747 memcpy(fh->idstring, "OFT_Windows ICBMFT V1.1 32", sizeof(fh->idstring));
748 memset(fh->idstring+strlen(fh->idstring), 0, sizeof(fh->idstring)-strlen(fh->idstring));
751 fh->lnameoffset = 0x1a;
752 fh->lsizeoffset = 0x10;
754 /* memset(fh->dummy, 0, sizeof(fh->dummy)); */
755 memset(fh->macfileinfo, 0, sizeof(fh->macfileinfo));
757 fh->nencode = 0x0000; /* we need to figure out these encodings for filenames */
758 fh->nlanguage = 0x0000;
760 /* memset(fh->name, 0, sizeof(fh->name)); */
761 memcpy(fh->name, "listing.txt", sizeof(fh->name));
762 memset(fh->name+strlen(fh->name), 0, 64-strlen(fh->name));
764 faimdprintf(sess, 2, "faim: OFT: listing fh name %s / %s\n", fh->name, (fh->name+(strlen(fh->name))));
770 * aim_listenestablish - create a listening socket on a port.
771 * @portnum: the port number to bind to.
773 * you need to call accept() when it's connected. returns your fd
776 static int listenestablish(fu16_t portnum)
778 #if defined(__linux__)
779 /* XXX what other OS's support getaddrinfo? */
782 struct addrinfo hints, *res, *ressave;
785 snprintf(serv, sizeof(serv), "%d", portnum);
786 memset(&hints, 0, sizeof(struct addrinfo));
787 hints.ai_flags = AI_PASSIVE;
788 hints.ai_family = AF_UNSPEC;
789 hints.ai_socktype = SOCK_STREAM;
790 if (getaddrinfo(NULL /*any IP*/, serv, &hints, &res) != 0) {
791 perror("getaddrinfo");
796 listenfd = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
799 setsockopt(listenfd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
800 if (bind(listenfd, res->ai_addr, res->ai_addrlen) == 0)
804 } while ( (res = res->ai_next) );
809 if (listen(listenfd, 1024)!=0) {
814 freeaddrinfo(ressave);
819 struct sockaddr_in sockin;
821 if ((listenfd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
822 perror("socket(listenfd)");
826 if (setsockopt(listenfd, SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on) != 0)) {
827 perror("setsockopt(listenfd)");
832 memset(&sockin, 0, sizeof(struct sockaddr_in));
833 sockin.sin_family = AF_INET;
834 sockin.sin_port = htons(portnum);
836 if (bind(listenfd, (struct sockaddr *)&sockin, sizeof(struct sockaddr_in)) != 0) {
837 perror("bind(listenfd)");
841 if (listen(listenfd, 4) != 0) {
842 perror("listen(listenfd)");
850 static int getcommand_getfile(aim_session_t *sess, aim_conn_t *conn)
853 struct aim_filetransfer_priv *ft;
854 aim_rxcallback_t userfunc;
857 if (ft->state == 2) {
858 /* waiting on listing data */
861 struct command_tx_struct *newoft;
863 if (!(listing = malloc(ft->fh.size)))
867 if (aim_recv(conn->fd, listing, ft->fh.size) != ft->fh.size)
868 faimdprintf(sess, 2, "OFT get: file %s was short. (0x%lx)\n", ft->fh.name, ft->fh.size);
870 if (!(newoft = aim_tx_new(sess, conn, AIM_FRAMETYPE_OFT, 0x120b, 0))) {
871 faimdprintf(sess, 2, "faim: aim_get_command_rendezvous: getfile listing: tx_new OFT failed\n");
872 faim_mutex_unlock(&conn->active);
874 aim_conn_close(conn);
878 memcpy(newoft->hdr.oft.magic, "OFT2", 4);
879 newoft->hdr.oft.hdr2len = 0x100 - 8;
881 /* Protocol BS - set nrecvd to size of listing, recvcsum to listing checksum, flags to 0 */
883 ft->fh.nrecvd = ft->fh.size;
884 ft->fh.recvcsum = ft->fh.checksum;
887 if (!(newoft->hdr.oft.hdr2 = (char *)calloc(1,newoft->hdr.oft.hdr2len))) {
888 aim_frame_destroy(newoft);
893 if (!(aim_oft_buildheader((unsigned char *)newoft->hdr.oft.hdr2, &(ft->fh))))
894 faimdprintf(sess, 2, "eek! bh fail listing\n");
897 aim_tx_enqueue(sess, newoft);
898 if ( (userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILELISTING)) )
899 ret = userfunc(sess, NULL, conn, ft, listing);
905 if (ft->state == 3) {
906 /* waiting on file data */
907 if ( (userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILERECEIVE)) )
908 return userfunc(sess, NULL, conn, ft);
912 if (ft->state == 4) {
913 if( (userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILESTATE4)) )
914 return userfunc(sess, NULL, conn);
915 aim_conn_close(conn);
925 static void connclose_sendfile(aim_session_t *sess, aim_conn_t *conn)
927 aim_msgcookie_t *cook;
928 struct aim_filetransfer_priv *priv = (struct aim_filetransfer_priv *)conn->priv;
930 cook = aim_uncachecookie(sess, priv->cookie, AIM_COOKIETYPE_OFTSEND);
931 aim_cookie_free(sess, cook);
936 static void connkill_sendfile(aim_session_t *sess, aim_conn_t *conn)
939 free(conn->internal);
944 static void connclose_getfile(aim_session_t *sess, aim_conn_t *conn)
946 aim_msgcookie_t *cook;
947 struct aim_filetransfer_priv *priv = (struct aim_filetransfer_priv *)conn->priv;
949 cook = aim_uncachecookie(sess, priv->cookie, AIM_COOKIETYPE_OFTGET);
950 aim_cookie_free(sess, cook);
955 static void connkill_getfile(aim_session_t *sess, aim_conn_t *conn)
958 free(conn->internal);
963 static void connclose_directim(aim_session_t *sess, aim_conn_t *conn)
965 struct aim_directim_intdata *intdata = (struct aim_directim_intdata *)conn->internal;
966 aim_msgcookie_t *cook;
968 cook = aim_uncachecookie(sess, intdata->cookie, AIM_COOKIETYPE_OFTIM);
969 aim_cookie_free(sess, cook);
974 static void connkill_directim(aim_session_t *sess, aim_conn_t *conn)
977 free(conn->internal);
982 faim_internal void aim_conn_close_rend(aim_session_t *sess, aim_conn_t *conn)
985 if (conn->type != AIM_CONN_TYPE_RENDEZVOUS)
988 if (conn->subtype == AIM_CONN_SUBTYPE_OFT_SENDFILE)
989 connclose_sendfile(sess, conn);
990 else if (conn->subtype == AIM_CONN_SUBTYPE_OFT_GETFILE)
991 connclose_getfile(sess, conn);
992 else if (conn->subtype == AIM_CONN_SUBTYPE_OFT_DIRECTIM)
993 connclose_directim(sess, conn);
998 faim_internal void aim_conn_kill_rend(aim_session_t *sess, aim_conn_t *conn)
1001 if (conn->type != AIM_CONN_TYPE_RENDEZVOUS)
1004 if (conn->subtype == AIM_CONN_SUBTYPE_OFT_SENDFILE)
1005 connkill_sendfile(sess, conn);
1006 else if (conn->subtype == AIM_CONN_SUBTYPE_OFT_GETFILE)
1007 connkill_getfile(sess, conn);
1008 else if (conn->subtype == AIM_CONN_SUBTYPE_OFT_DIRECTIM)
1009 connkill_directim(sess, conn);
1014 static int handlehdr_directim(aim_session_t *sess, aim_conn_t *conn, fu8_t *hdr)
1017 aim_rxcallback_t userfunc;
1018 fu32_t payloadlength;
1024 payloadlength = aimutil_get32(hdr+22);
1025 flags = aimutil_get16(hdr+32);
1026 snptr = (char *)hdr+38;
1028 faimdprintf(sess, 2, "faim: OFT frame: handlehdr_directim: %04x / %04x / %s\n", payloadlength, flags, snptr);
1030 if (flags == 0x000e) {
1033 if ((userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_DIRECTIMTYPING)))
1034 ret = userfunc(sess, &fr, snptr);
1038 } else if ((flags == 0x0000) && payloadlength) {
1042 if (!(msg = calloc(1, payloadlength+1)))
1045 if (aim_recv(conn->fd, msg, payloadlength) < payloadlength) {
1050 msg[payloadlength] = '\0';
1052 if ( (userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_DIRECTIMINCOMING)) )
1053 ret = userfunc(sess, &fr, snptr, msg);
1063 static int handlehdr_getfile_listing(aim_session_t *sess, aim_conn_t *conn, fu8_t *hdr)
1066 struct aim_filetransfer_priv *ft;
1067 struct aim_fileheader_t *fh;
1068 struct aim_msgcookie_t *cook;
1069 struct command_tx_struct *newoft;
1070 aim_rxcallback_t userfunc;
1072 faimdprintf(sess, 2,"faim: rend: fileget 0x1108\n");
1073 fh = aim_oft_getfh(hdr);
1075 faim_mutex_unlock(&conn->active);
1077 if (!(cook = aim_checkcookie(sess, fh->bcookie, AIM_COOKIETYPE_OFTGET))) {
1084 /* we're waaaaiiiting.. for listing.txt */
1087 memcpy(&(ft->fh), fh, sizeof(struct aim_fileheader_t));
1090 if(aim_cachecookie(sess, cook) == -1) {
1091 faimdprintf(sess, 1, "error caching cookie\n");
1095 if (!(newoft = aim_tx_new(sess, conn, AIM_FRAMETYPE_OFT, 0x1209, 0))) {
1096 aim_conn_close(conn);
1100 memcpy(newoft->hdr.oft.magic, "OFT2", 4);
1101 newoft->hdr.oft.hdr2len = 0x100 - 8;
1103 if (!(newoft->hdr.oft.hdr2 = (char *)calloc(1,newoft->hdr.oft.hdr2len))) {
1105 aim_frame_destroy(newoft);
1109 if (!(aim_oft_buildheader((unsigned char *)newoft->hdr.oft.hdr2, &(ft->fh)))) {
1111 aim_frame_destroy(newoft);
1116 aim_tx_enqueue(sess, newoft);
1121 static int handlehdr_getfile_listing2(aim_session_t *sess, aim_conn_t *conn, fu8_t *hdr)
1124 struct aim_filetransfer_priv *ft;
1125 struct aim_fileheader_t *fh;
1126 struct aim_msgcookie_t *cook;
1128 aim_rxcallback_t userfunc;
1130 fh = aim_oft_getfh(hdr);
1132 if (!(cook = aim_checkcookie(sess, fh->bcookie, AIM_COOKIETYPE_OFTGET)))
1133 faimdprintf(sess, 2, "shit, no cookie in 0x1209. (%i/%s)going to crash..\n", AIM_COOKIETYPE_OFTGET, fh->bcookie);
1137 if (ft->fh.size != fh->size)
1138 faimdprintf(sess, 2, "hrm. ft->fh.size (%ld) != fh->size (%ld). um. using ft->fh.size\n", ft->fh.size, fh->size);
1140 if ( (userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILELISTINGREQ)))
1141 ret = userfunc(sess, NULL, conn, fh);
1143 faimdprintf(sess, 2, "faim: get_command_rendezvous: hit end of 1209\n");
1153 static int handlehdr_getfile_listing3(aim_session_t *sess, aim_conn_t *conn, fu8_t *hdr)
1156 struct aim_filetransfer_priv *ft;
1157 struct aim_msgcookie_t *cook;
1158 struct aim_fileheader_t *fh;
1159 aim_rxcallback_t userfunc;
1161 fh = aim_oft_getfh(hdr);
1163 if (!(cook = aim_checkcookie(sess, fh->bcookie, AIM_COOKIETYPE_OFTGET))) {
1172 if (aim_cachecookie(sess, cook) == -1)
1175 if ((userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILELISTINGRXCONFIRM)))
1176 return userfunc(sess, NULL, conn);
1181 static int handlehdr_getfile_request(aim_session_t *sess, aim_conn_t *conn, fu8_t *hdr)
1184 struct aim_filetransfer_priv *ft;
1185 struct aim_msgcookie_t *cook;
1186 struct aim_fileheader_t *fh;
1187 struct command_tx_struct *newoft;
1189 aim_rxcallback_t userfunc;
1191 fh = aim_oft_getfh(hdr);
1193 if (!(cook = aim_checkcookie(sess, fh->bcookie, AIM_COOKIETYPE_OFTGET))) {
1199 memcpy(&(ft->fh), fh, sizeof(struct aim_fileheader_t));
1202 aim_cachecookie(sess, cook);
1204 faimdprintf(sess, 2, "faim: fileget: %s seems to want %s\n", ft->sn, ft->fh.name);
1206 if ( (userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILEFILEREQ)) )
1207 i = userfunc(sess, NULL, conn, &(ft->fh), cook->cookie);
1212 if (!(newoft = aim_tx_new(sess, conn, AIM_FRAMETYPE_OFT, 0x0101, 0))) {
1213 faimdprintf(sess, 2, "faim: send_final_transfer: tx_new OFT failed\n");
1218 memcpy(newoft->hdr.oft.magic, "OFT2", 4);
1219 newoft->hdr.oft.hdr2len = 0x100 - 8;
1221 if (!(newoft->hdr.oft.hdr2 = calloc(1,newoft->hdr.oft.hdr2len))) {
1222 aim_frame_destroy(newoft);
1226 /* protocol BS: nrecvd, recvcsum to 0, flags to 0x20. */
1228 ft->fh.recvcsum = 0;
1229 ft->fh.flags = 0x20;
1231 aim_oft_buildheader((unsigned char *)newoft->hdr.oft.hdr2, &(ft->fh));
1234 aim_tx_enqueue(sess, newoft);
1236 faimdprintf(sess, 2, "faim: OFT: OFT file header enqueued.\n");
1244 static int handlehdr_getfile_sending(aim_session_t *sess, aim_conn_t *conn, fu8_t *hdr)
1247 struct aim_fileheader_t *fh;
1248 struct aim_filetransfer_priv *ft;
1249 struct aim_msgcookie_t *cook;
1250 struct command_tx_struct *newoft;
1251 aim_rxcallback_t userfunc;
1253 fh = aim_oft_getfh(hdr);
1255 if (!(cook = aim_checkcookie(sess, fh->bcookie, AIM_COOKIETYPE_OFTGET))) {
1266 if (aim_cachecookie(sess, cook) == -1)
1269 faimdprintf(sess, 2, "faim: fileget: %s seems to want to send %s\n", ft->sn, ft->fh.name);
1271 if (!(newoft = aim_tx_new(sess, conn, AIM_FRAMETYPE_OFT, 0x0202, 0))) {
1272 faimdprintf(sess, 2, "faim: send_final_transfer: tx_new OFT failed\n");
1277 memcpy(newoft->hdr.oft.magic, "OFT2", 4);
1279 newoft->hdr.oft.hdr2len = 0x100 - 8;
1281 if (!(newoft->hdr.oft.hdr2 = calloc(1,newoft->hdr.oft.hdr2len))) {
1282 aim_frame_destroy(newoft);
1286 aim_oft_buildheader((unsigned char *)newoft->hdr.oft.hdr2, &(ft->fh));
1289 aim_tx_enqueue(sess, newoft);
1291 faimdprintf(sess, 2, "faim: OFT: OFT 0x0202 enqueued.\n");
1293 if ( (userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILEFILEREQ)) == NULL)
1300 static int handlehdr_getfile_recv(aim_session_t *sess, aim_conn_t *conn, fu8_t *hdr)
1303 struct aim_fileheader_t *fh;
1304 struct aim_filetransfer_priv *ft;
1305 struct aim_msgcookie_t *cook;
1307 aim_rxcallback_t userfunc;
1309 fh = aim_oft_getfh(hdr);
1311 if (!(cook = aim_checkcookie(sess, fh->bcookie, AIM_COOKIETYPE_OFTGET))) {
1318 faimdprintf(sess, 2, "faim: get_rend: looks like we're ready to send data.(oft 0x0202)\n");
1320 if ( (userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILEFILESEND)) )
1321 ret = userfunc(sess, NULL, conn, fh);
1331 static int handlehdr_getfile_finish(aim_session_t *sess, aim_conn_t *conn, fu8_t *hdr)
1334 struct aim_fileheader_t *fh;
1335 aim_rxcallback_t userfunc;
1337 fh = aim_oft_getfh(hdr);
1339 faimdprintf(sess, 2, "faim: get_rend: looks like we're done with a transfer (oft 0x0204)\n");
1341 if ( (userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILECOMPLETE)) )
1342 userfunc(sess, NULL, conn, fh);
1351 * aim_get_command_rendezvous - OFT equivalent of aim_get_command
1352 * @sess: session to work on
1353 * @conn: conn to pull data from
1355 * this reads and handles data from conn->fd. currently a little rough
1358 faim_internal int aim_get_command_rendezvous(aim_session_t *sess, aim_conn_t *conn)
1362 int hdrlen, hdrtype;
1368 memset(hdrbuf1, 0, sizeof(hdrbuf1));
1370 /* I guess? I didn't understand any of that mess... */
1371 if (conn->subtype == AIM_CONN_SUBTYPE_OFT_GETFILE)
1372 return getcommand_getfile(sess, conn);
1374 /* XXX fix all the error cases here */
1375 if (aim_recv(conn->fd, hdrbuf1, 6) < 6) {
1377 faimdprintf(sess, 2, "faim: rend: read error (fd: %i)\n", conn->fd);
1379 aim_conn_close(conn);
1384 hdrlen = aimutil_get16(hdrbuf1+4);
1387 hdr = malloc(hdrlen);
1389 if (aim_recv(conn->fd, hdr, hdrlen) < hdrlen) {
1390 faimdprintf(sess, 2, "faim: rend: read2 error on %d (%d)\n", conn->fd, hdrlen);
1392 aim_conn_close(conn);
1396 hdrtype = aimutil_get16(hdr);
1398 if (hdrtype == 0x0001)
1399 ret = handlehdr_directim(sess, conn, hdr);
1400 else if (hdrtype == 0x1108) /* getfile listing.txt incoming tx->rx */
1401 ret = handlehdr_getfile_listing(sess, conn, hdr);
1402 else if (hdrtype == 0x1209) /* get file listing ack rx->tx */
1403 ret = handlehdr_getfile_listing2(sess, conn, hdr);
1404 else if (hdrtype == 0x120b) /* get file listing rx confirm */
1405 ret = handlehdr_getfile_listing3(sess, conn, hdr);
1406 else if (hdrtype == 0x120c) /* getfile request */
1407 ret = handlehdr_getfile_request(sess, conn, hdr);
1408 else if (hdrtype == 0x0101) /* getfile sending data */
1409 ret = handlehdr_getfile_sending(sess, conn, hdr);
1410 else if (hdrtype == 0x0202) /* getfile recv data */
1411 ret = handlehdr_getfile_recv(sess, conn, hdr);
1412 else if (hdrtype == 0x0204) /* getfile finished */
1413 ret = handlehdr_getfile_finish(sess, conn, hdr);
1415 faimdprintf(sess, 2,"faim: OFT frame: uknown type %04x\n", hdrtype);
1422 aim_conn_close(conn);
1429 * aim_oft_getfh - extracts an &aim_fileheader_t from buffer hdr.
1430 * @hdr: buffer to extract header from
1432 * returns pointer to new struct on success; %NULL on error.
1435 static struct aim_fileheader_t *aim_oft_getfh(unsigned char *hdr)
1437 struct aim_fileheader_t *fh;
1439 if (!(fh = calloc(1, sizeof(struct aim_fileheader_t))))
1442 /* [0] and [1] are the type. we can ignore those here. */
1444 for(j = 0; j < 8; j++, i++)
1445 fh->bcookie[j] = hdr[i];
1446 fh->encrypt = aimutil_get16(hdr+i);
1448 fh->compress = aimutil_get16(hdr+i);
1450 fh->totfiles = aimutil_get16(hdr+i);
1452 fh->filesleft = aimutil_get16(hdr+i);
1454 fh->totparts = aimutil_get16(hdr+i);
1456 fh->partsleft = aimutil_get16(hdr+i);
1458 fh->totsize = aimutil_get32(hdr+i);
1460 fh->size = aimutil_get32(hdr+i);
1462 fh->modtime = aimutil_get32(hdr+i);
1464 fh->checksum = aimutil_get32(hdr+i);
1466 fh->rfrcsum = aimutil_get32(hdr+i);
1468 fh->rfsize = aimutil_get32(hdr+i);
1470 fh->cretime = aimutil_get32(hdr+i);
1472 fh->rfcsum = aimutil_get32(hdr+i);
1474 fh->nrecvd = aimutil_get32(hdr+i);
1476 fh->recvcsum = aimutil_get32(hdr+i);
1478 memcpy(fh->idstring, hdr+i, 32);
1480 fh->flags = aimutil_get8(hdr+i);
1482 fh->lnameoffset = aimutil_get8(hdr+i);
1484 fh->lsizeoffset = aimutil_get8(hdr+i);
1486 memcpy(fh->dummy, hdr+i, 69);
1488 memcpy(fh->macfileinfo, hdr+i, 16);
1490 fh->nencode = aimutil_get16(hdr+i);
1492 fh->nlanguage = aimutil_get16(hdr+i);
1494 memcpy(fh->name, hdr+i, 64);
1501 * aim_oft_checksum - calculate oft checksum of buffer
1502 * @buffer: buffer of data to checksum
1503 * @bufsize: size of buffer
1504 * @checksum: pointer to integer to place result in (pointer!)
1507 * Note that checksum is a pointer. Checksum should be filled with
1508 * 0xFFFF0000 for each new file; you can have this checksum chunks of
1509 * files in series if you just call it repeatedly in a for(; ; ) loop
1510 * and don't reset the checksum between each call. And you thought we
1511 * didn't care about you and your pathetic client's meomry footprint
1515 * Also, it's been said that this is incorrect as currently
1516 * written. You were warned.
1518 faim_export fu32_t aim_oft_checksum(aim_session_t *sess, const char *buffer, int bufsize, fu32_t *checksum)
1522 fu16_t check0, check1;
1525 check0 = ((*checksum & 0xFF000000) >> 16);
1526 check1 = ((*checksum & 0x00ff0000) >> 16);
1527 for(i = 0; i < bufsize; i++) {
1528 if (i % 2) { /* use check1 -- second byte */
1529 if ( (short)buffer[i] > check1 ) { /* wrapping */
1530 check1 += 0x100; /* this is a cheap way to wrap */
1532 /* if we're wrapping, decrement the other one */
1533 /* XXX: check this corner case */
1539 check1 -= buffer[i];
1540 } else { /* use check0 -- first byte */
1541 if ( (short)buffer[i] > check0 ) { /* wrapping */
1542 check0 += 0x100; /* this is a cheap way to wrap */
1544 /* if we're wrapping, decrement the other one */
1545 /* XXX: check this corner case */
1551 check0 -= buffer[i];
1555 if (check0 > 0xff || check1 > 0xff) {
1556 /* they shouldn't be able to do this. error! */
1557 faimdprintf(sess, 2, "check0 or check1 is too high: 0x%04x, 0x%04x\n", check0, check1);
1561 /* grab just the lowest byte; this should be clean, but just in
1566 *checksum = ((check0 * 0x1000000) + (check1 * 0x10000));
1573 * aim_oft_buildheader - fills a buffer with network-order fh data
1574 * @dest: buffer to fill -- pre-alloced
1575 * @fh: fh to get data from
1577 * returns length written; -1 on error.
1578 * DOES NOT DO BOUNDS CHECKING!
1581 static int oft_buildheader(unsigned char *dest, struct aim_fileheader_t *fh)
1587 for(i = 0; i < 8; i++)
1588 curbyte += aimutil_put8(dest+curbyte, fh->bcookie[i]);
1589 curbyte += aimutil_put16(dest+curbyte, fh->encrypt);
1590 curbyte += aimutil_put16(dest+curbyte, fh->compress);
1591 curbyte += aimutil_put16(dest+curbyte, fh->totfiles);
1592 curbyte += aimutil_put16(dest+curbyte, fh->filesleft);
1593 curbyte += aimutil_put16(dest+curbyte, fh->totparts);
1594 curbyte += aimutil_put16(dest+curbyte, fh->partsleft);
1595 curbyte += aimutil_put32(dest+curbyte, fh->totsize);
1596 curbyte += aimutil_put32(dest+curbyte, fh->size);
1597 curbyte += aimutil_put32(dest+curbyte, fh->modtime);
1598 curbyte += aimutil_put32(dest+curbyte, fh->checksum);
1599 curbyte += aimutil_put32(dest+curbyte, fh->rfrcsum);
1600 curbyte += aimutil_put32(dest+curbyte, fh->rfsize);
1601 curbyte += aimutil_put32(dest+curbyte, fh->cretime);
1602 curbyte += aimutil_put32(dest+curbyte, fh->rfcsum);
1603 curbyte += aimutil_put32(dest+curbyte, fh->nrecvd);
1604 curbyte += aimutil_put32(dest+curbyte, fh->recvcsum);
1605 memcpy(dest+curbyte, fh->idstring, 32);
1607 curbyte += aimutil_put8(dest+curbyte, fh->flags);
1608 curbyte += aimutil_put8(dest+curbyte, fh->lnameoffset);
1609 curbyte += aimutil_put8(dest+curbyte, fh->lsizeoffset);
1610 memcpy(dest+curbyte, fh->dummy, 69);
1612 memcpy(dest+curbyte, fh->macfileinfo, 16);
1614 curbyte += aimutil_put16(dest+curbyte, fh->nencode);
1615 curbyte += aimutil_put16(dest+curbyte, fh->nlanguage);
1616 memset(dest+curbyte, 0x00, 64);
1617 memcpy(dest+curbyte, fh->name, 64);
1619 /* XXX: Filenames longer than 64B */
1626 * aim_getfile_intitiate - Request an OFT getfile session
1627 * @sess: your session,
1628 * @conn: the BOS conn,
1629 * @destsn is the SN to connect to.
1631 * returns a new &aim_conn_t on success, %NULL on error
1633 faim_export aim_conn_t *aim_getfile_initiate(aim_session_t *sess, aim_conn_t *conn, const char *destsn)
1637 struct command_tx_struct *newpacket;
1638 struct aim_conn_t *newconn;
1639 struct aim_filetransfer_priv *priv;
1640 struct aim_msgcookie_t *cookie;
1641 int curbyte, i, listenfd;
1643 struct hostent *hptr;
1644 struct utsname myname;
1648 /* Open our socket */
1650 if ( (listenfd = aim_listenestablish(port)) == -1)
1653 /* get our local IP */
1655 if (uname(&myname) < 0)
1657 if ( (hptr = gethostbyname(myname.nodename)) == NULL)
1659 memcpy(&d, hptr->h_addr_list[0], 4);
1661 aim_putcap(cap, 16, AIM_CAPS_GETFILE);
1663 /* create the OSCAR packet */
1665 if (!(newpacket = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 10+8+2+1+strlen(destsn)+4+4+0x42)))
1667 newpacket->lock = 1;
1671 curbyte += aim_putsnac(newpacket->data+curbyte, 0x0004, 0x0006, 0x0000, sess->snac_nextid);
1673 /* XXX: check the cookie before commiting to using it */
1675 /* Generate a random message cookie
1676 * This cookie needs to be alphanumeric and NULL-terminated to be TOC-compatible. */
1678 curbyte += aimutil_put8(newpacket->data+curbyte, 0x30 + ((u_char) random() % 10));
1680 curbyte += aimutil_put8(newpacket->data+curbyte, 0x00);
1682 /* grab all the data for cookie caching. */
1684 if (!(cookie = (struct aim_msgcookie_t *)calloc(1, sizeof(struct aim_msgcookie_t))))
1686 memcpy(cookie->cookie, newpacket->data+curbyte-8, 8);
1687 cookie->type = AIM_COOKIETYPE_OFTGET;
1689 if (!(priv = (struct aim_filetransfer_priv *)calloc(1, sizeof(struct aim_filetransfer_priv))))
1691 memcpy(priv->cookie, cookie, 8);
1692 memcpy(priv->sn, destsn, sizeof(priv->sn));
1693 memcpy(priv->fh.name, "listing.txt", strlen("listing.txt"));
1696 cookie->data = priv;
1698 aim_cachecookie(sess, cookie);
1701 curbyte += aimutil_put16(newpacket->data+curbyte,0x0002);
1703 /* Destination SN (prepended with byte length) */
1704 curbyte += aimutil_put8(newpacket->data+curbyte,strlen(destsn));
1705 curbyte += aimutil_putstr(newpacket->data+curbyte, destsn, strlen(destsn));
1706 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0003);
1707 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000);
1710 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0005);
1711 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0042);
1713 /* Flag data / ICBM Parameters? */
1714 curbyte += aimutil_put8(newpacket->data+curbyte, 0x00);
1715 curbyte += aimutil_put8(newpacket->data+curbyte, 0x00);
1718 curbyte += aimutil_putstr(newpacket->data+curbyte, (char *)cookie, 8);
1720 /* Capability String */
1721 curbyte += aimutil_putstr(newpacket->data+curbyte, (char *)cap, 0x10);
1723 /* 000a/0002 : 0001 */
1724 curbyte += aimutil_put16(newpacket->data+curbyte, 0x000a);
1725 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0002);
1726 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0001);
1728 /* 0003/0004: IP address */
1729 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0003);
1730 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0004);
1731 for(i = 0; i < 4; i++)
1732 curbyte += aimutil_put8(newpacket->data+curbyte, d[i]);
1734 /* already in network byte order */
1736 /* 0005/0002: Port */
1737 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0005);
1738 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0002);
1739 curbyte += aimutil_put16(newpacket->data+curbyte, port);
1742 curbyte += aimutil_put16(newpacket->data+curbyte, 0x000f);
1743 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000);
1746 curbyte += aimutil_put16(newpacket->data+curbyte, 0x2711);
1747 curbyte += aimutil_put16(newpacket->data+curbyte, 0x000c);
1748 curbyte += aimutil_put32(newpacket->data+curbyte, 0x00120001);
1750 for(i = 0; i < 0x000c - 4; i++)
1751 curbyte += aimutil_put8(newpacket->data+curbyte, 0x00);
1753 newpacket->commandlen = curbyte;
1754 newpacket->lock = 0;
1755 aim_tx_enqueue(sess, newpacket);
1757 /* allocate and set up our connection */
1759 i = fcntl(listenfd, F_GETFL, 0);
1760 fcntl(listenfd, F_SETFL, i | O_NONBLOCK);
1761 newconn = aim_newconn(sess, AIM_CONN_TYPE_RENDEZVOUS_OUT, NULL);
1764 perror("aim_newconn");
1768 newconn->fd = listenfd;
1769 newconn->subtype = AIM_CONN_SUBTYPE_OFT_GETFILE;
1770 newconn->priv = priv;
1771 faimdprintf(sess, 2,"faim: listening (fd = %d, unconnected)\n", newconn->fd);
1778 * aim_oft_getfile_request - request a particular file over an established getfile connection
1779 * @sess: your session
1780 * @conn: the established OFT getfile connection
1781 * @name: filename to request
1782 * @size: size of the file
1785 * returns -1 on error, 0 on successful enqueuing
1787 faim_export int aim_oft_getfile_request(aim_session_t *sess, aim_conn_t *conn, const char *name, int size)
1791 struct command_tx_struct *newoft;
1792 struct aim_filetransfer_priv *ft;
1793 if (!sess || !conn || !conn->priv || !name)
1796 if (!(newoft = aim_tx_new(sess, conn, AIM_FRAMETYPE_OFT, 0x120c, 0))) {
1797 faimdprintf(sess, 2, "faim: aim_accepttransfer: tx_new OFT failed\n");
1803 memcpy(newoft->hdr.oft.magic, "OFT2", 4);
1804 newoft->hdr.oft.hdr2len = 0x100 - 8;
1806 ft = (struct aim_filetransfer_priv *)conn->priv;
1807 ft->fh.filesleft = 1;
1808 ft->fh.totfiles = 1;
1809 ft->fh.totparts = 1;
1810 ft->fh.partsleft = 1;
1811 ft->fh.totsize = size;
1813 ft->fh.checksum = 0;
1814 memcpy(ft->fh.name, name, strlen(name));
1815 memset(ft->fh.name+strlen(name), 0, 1);
1817 if (!(newoft->hdr.oft.hdr2 = (unsigned char *)calloc(1,newoft->hdr.oft.hdr2len))) {
1819 aim_frame_destroy(newoft);
1823 if (!(aim_oft_buildheader(newoft->hdr.oft.hdr2, &(ft->fh)))) {
1825 aim_frame_destroy(newoft);
1831 aim_tx_enqueue(sess, newoft);
1837 * aim_oft_getfile_ack - acknowledge a getfile download as complete
1838 * @sess: your session
1839 * @conn: the getfile conn to send the ack over
1841 * Call this function after you have read all the data in a particular
1842 * filetransfer. Returns -1 on error, 0 on apparent success
1845 faim_export int aim_oft_getfile_ack(aim_session_t *sess, aim_conn_t *conn)
1849 struct command_tx_struct *newoft;
1850 struct aim_filetransfer_priv *ft;
1852 if (!sess || !conn || !conn->priv)
1855 if (!(newoft = aim_tx_new(sess, conn, AIM_FRAMETYPE_OFT, 0x0202, 0))) {
1856 faimdprintf(sess, 2, "faim: aim_accepttransfer: tx_new OFT failed\n");
1862 memcpy(newoft->hdr.oft.magic, "OFT2", 4);
1863 newoft->hdr.oft.hdr2len = 0x100-8;
1865 if (!(newoft->hdr.oft.hdr2 = (char *)calloc(1,newoft->hdr.oft.hdr2len))) {
1867 aim_frame_destroy(newoft);
1871 ft = (struct aim_filetransfer_priv *)conn->priv;
1873 if (!(aim_oft_buildheader((unsigned char *)newoft->hdr.oft.hdr2, &(ft->fh)))) {
1875 aim_frame_destroy(newoft);
1880 aim_tx_enqueue(sess, newoft);
1886 * aim_oft_getfile_end - end a getfile.
1887 * @sess: your session
1888 * @conn: the getfile connection
1890 * call this before you close the getfile connection if you're on the
1891 * receiving/requesting end.
1893 faim_export int aim_oft_getfile_end(aim_session_t *sess, aim_conn_t *conn)
1897 struct command_tx_struct *newoft;
1898 struct aim_filetransfer_priv *ft;
1900 if (!sess || !conn || !conn->priv)
1903 if (!(newoft = aim_tx_new(sess, conn, AIM_FRAMETYPE_OFT, 0x0204, 0))) {
1904 faimdprintf(sess, 2, "faim: aim_accepttransfer: tx_new OFT failed\n");
1910 memcpy(newoft->hdr.oft.magic, "OFT2", 4);
1911 newoft->hdr.oft.hdr2len = 0x100 - 8;
1913 if (!(newoft->hdr.oft.hdr2 = (char *)calloc(1,newoft->hdr.oft.hdr2len))) {
1915 aim_frame_destroy(newoft);
1919 ft = (struct aim_filetransfer_priv *)conn->priv;
1920 ft->state = 4; /* no longer wanting data */
1921 ft->fh.nrecvd = ft->fh.size;
1922 ft->fh.recvcsum = ft->fh.checksum;
1923 ft->fh.flags = 0x21;
1925 if (!(aim_oft_buildheader((unsigned char *)newoft->hdr.oft.hdr2, &(ft->fh)))) {
1927 aim_frame_destroy(newoft);
1932 aim_tx_enqueue(sess, newoft);