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));
425 strncpy(intdata->ip, addr, sizeof(intdata->ip));
427 /* XXX verify that non-blocking connects actually work */
428 if (!(newconn = aim_newconn(sess, AIM_CONN_TYPE_RENDEZVOUS, addr))) {
433 if (!newconn || (newconn->fd == -1)) {
438 newconn->subtype = AIM_CONN_SUBTYPE_OFT_DIRECTIM;
439 newconn->internal = intdata;
445 * aim_directim_getconn - find a directim conn for buddy name
446 * @sess: your session,
447 * @name: the name to get,
449 * returns conn for directim with name, %NULL if none found.
452 faim_export aim_conn_t *aim_directim_getconn(aim_session_t *sess, const char *name)
456 if (!sess || !name || !strlen(name))
459 for (cur = sess->connlist; cur; cur = cur->next) {
460 struct aim_directim_intdata *intdata;
462 if ((cur->type != AIM_CONN_TYPE_RENDEZVOUS) || (cur->subtype != AIM_CONN_SUBTYPE_OFT_DIRECTIM))
465 intdata = cur->internal;
467 if (aim_sncmp(intdata->sn, name) == 0)
475 * aim_accepttransfer - accept a file transfer request
476 * @sess: the session,
477 * @conn: the BOS conn for the CAP reply
478 * @sn: the screenname to send it to,
479 * @cookie: the cookie used
480 * @ip: the ip to connect to
481 * @listingfiles: number of files to share
482 * @listingtotsize: total size of shared files
483 * @listingsize: length of the listing file(buffer)
484 * @listingchecksum: checksum of the listing
485 * @rendid: capability type (%AIM_CAPS_GETFILE or %AIM_CAPS_SENDFILE)
487 * Returns new connection or %NULL on error.
489 * XXX this should take a struct.
491 faim_export aim_conn_t *aim_accepttransfer(aim_session_t *sess,
493 const char *sn, const fu8_t *cookie,
496 fu16_t listingtotsize,
498 fu32_t listingchecksum,
503 struct command_tx_struct *newpacket, *newoft;
504 struct aim_conn_t *newconn;
505 struct aim_fileheader_t *fh;
506 struct aim_filetransfer_priv *priv;
507 struct aim_msgcookie_t *cachedcook;
510 if (!sess || !conn || !sn || !cookie || !ip) {
514 newconn = aim_newconn(sess, AIM_CONN_TYPE_RENDEZVOUS, ip);
516 if (!newconn || (newconn->fd == -1)) {
517 perror("aim_newconn");
518 faimdprintf(sess, 2, "could not connect to %s (fd: %i)\n", ip, newconn?newconn->fd:0);
521 priv = (struct aim_filetransfer_priv *)calloc(1, sizeof(struct aim_filetransfer_priv));
523 memcpy(priv->cookie, cookie, 8);
525 strncpy(priv->sn, sn, MAXSNLEN);
526 strncpy(priv->ip, ip, sizeof(priv->ip));
527 newconn->priv = (void *)priv;
529 faimdprintf(sess, 2, "faim: connected to peer (fd = %d)\n", newconn->fd);
532 if (rendid == AIM_CAPS_GETFILE) {
533 newconn->subtype = AIM_CONN_SUBTYPE_OFT_GETFILE;
535 faimdprintf(sess, 2, "faim: getfile request accept\n");
537 if (!(newoft = aim_tx_new(sess, newconn, AIM_FRAMETYPE_OFT, 0x1108, 0))) {
538 faimdprintf(sess, 2, "faim: aim_accepttransfer: tx_new OFT failed\n");
539 /* XXX: conn leak here */
544 memcpy(newoft->hdr.oft.magic, "OFT2", 4);
545 newoft->hdr.oft.hdr2len = 0x100 - 8;
547 if (!(fh = (struct aim_fileheader_t*)calloc(1, sizeof(struct aim_fileheader_t)))) {
548 /* XXX: conn leak here */
553 fh->encrypt = 0x0000;
554 fh->compress = 0x0000;
555 fh->totfiles = listingfiles;
556 fh->filesleft = listingfiles; /* is this right -- total parts and parts left?*/
557 fh->totparts = 0x0001;
558 fh->partsleft = 0x0001;
559 fh->totsize = listingtotsize;
560 fh->size = listingsize; /* ls -l listing.txt */
561 fh->modtime = (int)time(NULL); /* we'll go with current time for now */
562 fh->checksum = listingchecksum;
563 fh->rfcsum = 0x00000000;
564 fh->rfsize = 0x00000000;
565 fh->cretime = 0x00000000;
566 fh->rfcsum = 0x00000000;
567 fh->nrecvd = 0x00000000;
568 fh->recvcsum = 0x00000000;
569 memset(fh->idstring, 0, sizeof(fh->idstring));
570 memcpy(fh->idstring, "OFT_Windows ICBMFT V1.1 32", sizeof(fh->idstring));
572 fh->lnameoffset = 0x1a;
573 fh->lsizeoffset = 0x10;
574 memset(fh->dummy, 0, sizeof(fh->dummy));
575 memset(fh->macfileinfo, 0, sizeof(fh->macfileinfo));
577 /* we need to figure out these encodings for filenames */
578 fh->nencode = 0x0000;
579 fh->nlanguage = 0x0000;
580 memset(fh->name, 0, sizeof(fh->name));
581 memcpy(fh->name, "listing.txt", sizeof(fh->name));
583 if (!(newoft->hdr.oft.hdr2 = (char *)calloc(1,newoft->hdr.oft.hdr2len))) {
585 aim_frame_destroy(newoft);
587 perror("calloc (1)");
591 memcpy(fh->bcookie, cookie, 8);
593 if (!(aim_oft_buildheader((unsigned char *)newoft->hdr.oft.hdr2, fh)))
594 faimdprintf(sess, 1, "eek, bh fail!\n");
597 aim_tx_enqueue(sess, newoft);
599 if (!(cachedcook = (struct aim_msgcookie_t *)calloc(1, sizeof(struct aim_msgcookie_t)))) {
600 faimdprintf(sess, 1, "faim: accepttransfer: couldn't calloc cachedcook. yeep!\n");
601 /* XXX: more cleanup, conn leak */
602 perror("calloc (2)");
606 memcpy(&(priv->fh), fh, sizeof(struct aim_fileheader_t));
607 memcpy(cachedcook->cookie, cookie, 8);
609 cachedcook->type = AIM_COOKIETYPE_OFTGET;
610 cachedcook->data = (void *)priv;
612 if (aim_cachecookie(sess, cachedcook) == -1)
613 faimdprintf(sess, 1, "faim: ERROR caching message cookie\n");
617 /* OSCAR CAP accept packet */
619 if (!(newpacket = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 10+8+2+1+strlen(sn)+4+2+8+16))) {
627 curbyte = aim_putsnac(newpacket->data, 0x0004, 0x0006, 0x0000, sess->snac_nextid);
629 for (i = 0; i < 8; i++)
630 curbyte += aimutil_put8(newpacket->data+curbyte, cookie[i]);
632 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0002);
633 curbyte += aimutil_put8(newpacket->data+curbyte, strlen(sn));
634 curbyte += aimutil_putstr(newpacket->data+curbyte, sn, strlen(sn));
635 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0005);
636 curbyte += aimutil_put16(newpacket->data+curbyte, 0x001a);
637 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0002 /* accept*/);
639 for (i = 0;i < 8; i++)
640 curbyte += aimutil_put8(newpacket->data+curbyte, cookie[i]);
642 curbyte += aim_putcap(newpacket->data+curbyte, 0x10, rendid);
644 aim_tx_enqueue(sess, newpacket);
651 * aim_getlisting(FILE *file) -- get an aim_fileheader_t for a given FILE*
652 * @file is an opened listing file
654 * returns a pointer to the filled-in fileheader_t
656 * Currently omits checksum. we'll fix this when AOL breaks us, i
660 faim_export struct aim_fileheader_t *aim_getlisting(aim_session_t *sess, FILE *file)
664 struct aim_fileheader_t *fh;
665 u_long totsize = 0, size = 0, checksum = 0xffff0000;
667 char *linebuf, sizebuf[9];
669 int linelength = 1024;
671 /* XXX: if we have a line longer than 1024chars, God help us. */
672 if ( (linebuf = (char *)calloc(1, linelength)) == NULL ) {
673 faimdprintf(sess, 2, "linebuf calloc failed\n");
677 if (fseek(file, 0, SEEK_END) == -1) { /* use this for sanity check */
678 perror("getlisting END1 fseek:");
679 faimdprintf(sess, 2, "getlising fseek END1 error\n");
682 if ((size = ftell(file)) == -1) {
683 perror("getlisting END1 getpos:");
684 faimdprintf(sess, 2, "getlising getpos END1 error\n");
687 if (fseek(file, 0, SEEK_SET) != 0) {
688 perror("getlesting fseek(SET):");
689 faimdprintf(sess, 2, "faim: getlisting: couldn't seek to beginning of listing file\n");
692 memset(linebuf, 0, linelength);
696 while(fgets(linebuf, linelength, file)) {
698 memset(sizebuf, 0, 9);
700 size += strlen(linebuf);
702 if (strlen(linebuf) < 23) {
703 faimdprintf(sess, 2, "line \"%s\" too short. skipping\n", linebuf);
706 if (linebuf[strlen(linebuf)-1] != '\n') {
707 faimdprintf(sess, 2, "faim: OFT: getlisting -- hit EOF or line too long!\n");
710 memcpy(sizebuf, linebuf+17, 8);
712 totsize += strtol(sizebuf, NULL, 10);
713 memset(linebuf, 0, linelength);
716 if (fseek(file, 0, SEEK_SET) == -1) {
717 perror("getlisting END2 fseek:");
718 faimdprintf(sess, 2, "getlising fseek END2 error\n");
723 /* we're going to ignore checksumming the data for now -- that
724 * requires walking the whole listing.txt. it should probably be
725 * done at register time and cached, but, eh. */
727 if (!(fh = (struct aim_fileheader_t*)calloc(1, sizeof(struct aim_fileheader_t))))
730 fh->encrypt = 0x0000;
731 fh->compress = 0x0000;
732 fh->totfiles = totfiles;
733 fh->filesleft = totfiles; /* is this right ?*/
734 fh->totparts = 0x0001;
735 fh->partsleft = 0x0001;
736 fh->totsize = totsize;
737 fh->size = size; /* ls -l listing.txt */
738 fh->modtime = (int)time(NULL); /* we'll go with current time for now */
739 fh->checksum = checksum; /* XXX: checksum ! */
740 fh->rfcsum = 0x00000000;
741 fh->rfsize = 0x00000000;
742 fh->cretime = 0x00000000;
743 fh->rfcsum = 0x00000000;
744 fh->nrecvd = 0x00000000;
745 fh->recvcsum = 0x00000000;
747 /* memset(fh->idstring, 0, sizeof(fh->idstring)); */
748 memcpy(fh->idstring, "OFT_Windows ICBMFT V1.1 32", sizeof(fh->idstring));
749 memset(fh->idstring+strlen(fh->idstring), 0, sizeof(fh->idstring)-strlen(fh->idstring));
752 fh->lnameoffset = 0x1a;
753 fh->lsizeoffset = 0x10;
755 /* memset(fh->dummy, 0, sizeof(fh->dummy)); */
756 memset(fh->macfileinfo, 0, sizeof(fh->macfileinfo));
758 fh->nencode = 0x0000; /* we need to figure out these encodings for filenames */
759 fh->nlanguage = 0x0000;
761 /* memset(fh->name, 0, sizeof(fh->name)); */
762 memcpy(fh->name, "listing.txt", sizeof(fh->name));
763 memset(fh->name+strlen(fh->name), 0, 64-strlen(fh->name));
765 faimdprintf(sess, 2, "faim: OFT: listing fh name %s / %s\n", fh->name, (fh->name+(strlen(fh->name))));
771 * aim_listenestablish - create a listening socket on a port.
772 * @portnum: the port number to bind to.
774 * you need to call accept() when it's connected. returns your fd
777 static int listenestablish(fu16_t portnum)
779 #if defined(__linux__)
780 /* XXX what other OS's support getaddrinfo? */
783 struct addrinfo hints, *res, *ressave;
786 snprintf(serv, sizeof(serv), "%d", portnum);
787 memset(&hints, 0, sizeof(struct addrinfo));
788 hints.ai_flags = AI_PASSIVE;
789 hints.ai_family = AF_UNSPEC;
790 hints.ai_socktype = SOCK_STREAM;
791 if (getaddrinfo(NULL /*any IP*/, serv, &hints, &res) != 0) {
792 perror("getaddrinfo");
797 listenfd = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
800 setsockopt(listenfd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
801 if (bind(listenfd, res->ai_addr, res->ai_addrlen) == 0)
805 } while ( (res = res->ai_next) );
810 if (listen(listenfd, 1024)!=0) {
815 freeaddrinfo(ressave);
820 struct sockaddr_in sockin;
822 if ((listenfd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
823 perror("socket(listenfd)");
827 if (setsockopt(listenfd, SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on) != 0)) {
828 perror("setsockopt(listenfd)");
833 memset(&sockin, 0, sizeof(struct sockaddr_in));
834 sockin.sin_family = AF_INET;
835 sockin.sin_port = htons(portnum);
837 if (bind(listenfd, (struct sockaddr *)&sockin, sizeof(struct sockaddr_in)) != 0) {
838 perror("bind(listenfd)");
842 if (listen(listenfd, 4) != 0) {
843 perror("listen(listenfd)");
851 static int getcommand_getfile(aim_session_t *sess, aim_conn_t *conn)
854 struct aim_filetransfer_priv *ft;
855 aim_rxcallback_t userfunc;
858 if (ft->state == 2) {
859 /* waiting on listing data */
862 struct command_tx_struct *newoft;
864 if (!(listing = malloc(ft->fh.size)))
868 if (aim_recv(conn->fd, listing, ft->fh.size) != ft->fh.size)
869 faimdprintf(sess, 2, "OFT get: file %s was short. (0x%lx)\n", ft->fh.name, ft->fh.size);
871 if (!(newoft = aim_tx_new(sess, conn, AIM_FRAMETYPE_OFT, 0x120b, 0))) {
872 faimdprintf(sess, 2, "faim: aim_get_command_rendezvous: getfile listing: tx_new OFT failed\n");
873 faim_mutex_unlock(&conn->active);
875 aim_conn_close(conn);
879 memcpy(newoft->hdr.oft.magic, "OFT2", 4);
880 newoft->hdr.oft.hdr2len = 0x100 - 8;
882 /* Protocol BS - set nrecvd to size of listing, recvcsum to listing checksum, flags to 0 */
884 ft->fh.nrecvd = ft->fh.size;
885 ft->fh.recvcsum = ft->fh.checksum;
888 if (!(newoft->hdr.oft.hdr2 = (char *)calloc(1,newoft->hdr.oft.hdr2len))) {
889 aim_frame_destroy(newoft);
894 if (!(aim_oft_buildheader((unsigned char *)newoft->hdr.oft.hdr2, &(ft->fh))))
895 faimdprintf(sess, 2, "eek! bh fail listing\n");
898 aim_tx_enqueue(sess, newoft);
899 if ( (userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILELISTING)) )
900 ret = userfunc(sess, NULL, conn, ft, listing);
906 if (ft->state == 3) {
907 /* waiting on file data */
908 if ( (userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILERECEIVE)) )
909 return userfunc(sess, NULL, conn, ft);
913 if (ft->state == 4) {
914 if( (userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILESTATE4)) )
915 return userfunc(sess, NULL, conn);
916 aim_conn_close(conn);
926 static void connclose_sendfile(aim_session_t *sess, aim_conn_t *conn)
928 aim_msgcookie_t *cook;
929 struct aim_filetransfer_priv *priv = (struct aim_filetransfer_priv *)conn->priv;
931 cook = aim_uncachecookie(sess, priv->cookie, AIM_COOKIETYPE_OFTSEND);
932 aim_cookie_free(sess, cook);
937 static void connkill_sendfile(aim_session_t *sess, aim_conn_t *conn)
940 free(conn->internal);
945 static void connclose_getfile(aim_session_t *sess, aim_conn_t *conn)
947 aim_msgcookie_t *cook;
948 struct aim_filetransfer_priv *priv = (struct aim_filetransfer_priv *)conn->priv;
950 cook = aim_uncachecookie(sess, priv->cookie, AIM_COOKIETYPE_OFTGET);
951 aim_cookie_free(sess, cook);
956 static void connkill_getfile(aim_session_t *sess, aim_conn_t *conn)
959 free(conn->internal);
964 static void connclose_directim(aim_session_t *sess, aim_conn_t *conn)
966 struct aim_directim_intdata *intdata = (struct aim_directim_intdata *)conn->internal;
967 aim_msgcookie_t *cook;
969 cook = aim_uncachecookie(sess, intdata->cookie, AIM_COOKIETYPE_OFTIM);
970 aim_cookie_free(sess, cook);
975 static void connkill_directim(aim_session_t *sess, aim_conn_t *conn)
978 free(conn->internal);
983 faim_internal void aim_conn_close_rend(aim_session_t *sess, aim_conn_t *conn)
986 if (conn->type != AIM_CONN_TYPE_RENDEZVOUS)
989 if (conn->subtype == AIM_CONN_SUBTYPE_OFT_SENDFILE)
990 connclose_sendfile(sess, conn);
991 else if (conn->subtype == AIM_CONN_SUBTYPE_OFT_GETFILE)
992 connclose_getfile(sess, conn);
993 else if (conn->subtype == AIM_CONN_SUBTYPE_OFT_DIRECTIM)
994 connclose_directim(sess, conn);
999 faim_internal void aim_conn_kill_rend(aim_session_t *sess, aim_conn_t *conn)
1002 if (conn->type != AIM_CONN_TYPE_RENDEZVOUS)
1005 if (conn->subtype == AIM_CONN_SUBTYPE_OFT_SENDFILE)
1006 connkill_sendfile(sess, conn);
1007 else if (conn->subtype == AIM_CONN_SUBTYPE_OFT_GETFILE)
1008 connkill_getfile(sess, conn);
1009 else if (conn->subtype == AIM_CONN_SUBTYPE_OFT_DIRECTIM)
1010 connkill_directim(sess, conn);
1015 static int handlehdr_directim(aim_session_t *sess, aim_conn_t *conn, fu8_t *hdr)
1018 aim_rxcallback_t userfunc;
1019 fu32_t payloadlength;
1025 payloadlength = aimutil_get32(hdr+22);
1026 flags = aimutil_get16(hdr+32);
1027 snptr = (char *)hdr+38;
1029 faimdprintf(sess, 2, "faim: OFT frame: handlehdr_directim: %04x / %04x / %s\n", payloadlength, flags, snptr);
1031 if (flags == 0x000e) {
1034 if ((userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_DIRECTIMTYPING)))
1035 ret = userfunc(sess, &fr, snptr);
1039 } else if ((flags == 0x0000) && payloadlength) {
1043 if (!(msg = calloc(1, payloadlength+1)))
1046 if (aim_recv(conn->fd, msg, payloadlength) < payloadlength) {
1051 msg[payloadlength] = '\0';
1053 if ( (userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_DIRECTIMINCOMING)) )
1054 ret = userfunc(sess, &fr, snptr, msg);
1064 static int handlehdr_getfile_listing(aim_session_t *sess, aim_conn_t *conn, fu8_t *hdr)
1067 struct aim_filetransfer_priv *ft;
1068 struct aim_fileheader_t *fh;
1069 struct aim_msgcookie_t *cook;
1070 struct command_tx_struct *newoft;
1071 aim_rxcallback_t userfunc;
1073 faimdprintf(sess, 2,"faim: rend: fileget 0x1108\n");
1074 fh = aim_oft_getfh(hdr);
1076 faim_mutex_unlock(&conn->active);
1078 if (!(cook = aim_checkcookie(sess, fh->bcookie, AIM_COOKIETYPE_OFTGET))) {
1085 /* we're waaaaiiiting.. for listing.txt */
1088 memcpy(&(ft->fh), fh, sizeof(struct aim_fileheader_t));
1091 if(aim_cachecookie(sess, cook) == -1) {
1092 faimdprintf(sess, 1, "error caching cookie\n");
1096 if (!(newoft = aim_tx_new(sess, conn, AIM_FRAMETYPE_OFT, 0x1209, 0))) {
1097 aim_conn_close(conn);
1101 memcpy(newoft->hdr.oft.magic, "OFT2", 4);
1102 newoft->hdr.oft.hdr2len = 0x100 - 8;
1104 if (!(newoft->hdr.oft.hdr2 = (char *)calloc(1,newoft->hdr.oft.hdr2len))) {
1106 aim_frame_destroy(newoft);
1110 if (!(aim_oft_buildheader((unsigned char *)newoft->hdr.oft.hdr2, &(ft->fh)))) {
1112 aim_frame_destroy(newoft);
1117 aim_tx_enqueue(sess, newoft);
1122 static int handlehdr_getfile_listing2(aim_session_t *sess, aim_conn_t *conn, fu8_t *hdr)
1125 struct aim_filetransfer_priv *ft;
1126 struct aim_fileheader_t *fh;
1127 struct aim_msgcookie_t *cook;
1129 aim_rxcallback_t userfunc;
1131 fh = aim_oft_getfh(hdr);
1133 if (!(cook = aim_checkcookie(sess, fh->bcookie, AIM_COOKIETYPE_OFTGET)))
1134 faimdprintf(sess, 2, "shit, no cookie in 0x1209. (%i/%s)going to crash..\n", AIM_COOKIETYPE_OFTGET, fh->bcookie);
1138 if (ft->fh.size != fh->size)
1139 faimdprintf(sess, 2, "hrm. ft->fh.size (%ld) != fh->size (%ld). um. using ft->fh.size\n", ft->fh.size, fh->size);
1141 if ( (userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILELISTINGREQ)))
1142 ret = userfunc(sess, NULL, conn, fh);
1144 faimdprintf(sess, 2, "faim: get_command_rendezvous: hit end of 1209\n");
1154 static int handlehdr_getfile_listing3(aim_session_t *sess, aim_conn_t *conn, fu8_t *hdr)
1157 struct aim_filetransfer_priv *ft;
1158 struct aim_msgcookie_t *cook;
1159 struct aim_fileheader_t *fh;
1160 aim_rxcallback_t userfunc;
1162 fh = aim_oft_getfh(hdr);
1164 if (!(cook = aim_checkcookie(sess, fh->bcookie, AIM_COOKIETYPE_OFTGET))) {
1173 if (aim_cachecookie(sess, cook) == -1)
1176 if ((userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILELISTINGRXCONFIRM)))
1177 return userfunc(sess, NULL, conn);
1182 static int handlehdr_getfile_request(aim_session_t *sess, aim_conn_t *conn, fu8_t *hdr)
1185 struct aim_filetransfer_priv *ft;
1186 struct aim_msgcookie_t *cook;
1187 struct aim_fileheader_t *fh;
1188 struct command_tx_struct *newoft;
1190 aim_rxcallback_t userfunc;
1192 fh = aim_oft_getfh(hdr);
1194 if (!(cook = aim_checkcookie(sess, fh->bcookie, AIM_COOKIETYPE_OFTGET))) {
1200 memcpy(&(ft->fh), fh, sizeof(struct aim_fileheader_t));
1203 aim_cachecookie(sess, cook);
1205 faimdprintf(sess, 2, "faim: fileget: %s seems to want %s\n", ft->sn, ft->fh.name);
1207 if ( (userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILEFILEREQ)) )
1208 i = userfunc(sess, NULL, conn, &(ft->fh), cook->cookie);
1213 if (!(newoft = aim_tx_new(sess, conn, AIM_FRAMETYPE_OFT, 0x0101, 0))) {
1214 faimdprintf(sess, 2, "faim: send_final_transfer: tx_new OFT failed\n");
1219 memcpy(newoft->hdr.oft.magic, "OFT2", 4);
1220 newoft->hdr.oft.hdr2len = 0x100 - 8;
1222 if (!(newoft->hdr.oft.hdr2 = calloc(1,newoft->hdr.oft.hdr2len))) {
1223 aim_frame_destroy(newoft);
1227 /* protocol BS: nrecvd, recvcsum to 0, flags to 0x20. */
1229 ft->fh.recvcsum = 0;
1230 ft->fh.flags = 0x20;
1232 aim_oft_buildheader((unsigned char *)newoft->hdr.oft.hdr2, &(ft->fh));
1235 aim_tx_enqueue(sess, newoft);
1237 faimdprintf(sess, 2, "faim: OFT: OFT file header enqueued.\n");
1245 static int handlehdr_getfile_sending(aim_session_t *sess, aim_conn_t *conn, fu8_t *hdr)
1248 struct aim_fileheader_t *fh;
1249 struct aim_filetransfer_priv *ft;
1250 struct aim_msgcookie_t *cook;
1251 struct command_tx_struct *newoft;
1252 aim_rxcallback_t userfunc;
1254 fh = aim_oft_getfh(hdr);
1256 if (!(cook = aim_checkcookie(sess, fh->bcookie, AIM_COOKIETYPE_OFTGET))) {
1267 if (aim_cachecookie(sess, cook) == -1)
1270 faimdprintf(sess, 2, "faim: fileget: %s seems to want to send %s\n", ft->sn, ft->fh.name);
1272 if (!(newoft = aim_tx_new(sess, conn, AIM_FRAMETYPE_OFT, 0x0202, 0))) {
1273 faimdprintf(sess, 2, "faim: send_final_transfer: tx_new OFT failed\n");
1278 memcpy(newoft->hdr.oft.magic, "OFT2", 4);
1280 newoft->hdr.oft.hdr2len = 0x100 - 8;
1282 if (!(newoft->hdr.oft.hdr2 = calloc(1,newoft->hdr.oft.hdr2len))) {
1283 aim_frame_destroy(newoft);
1287 aim_oft_buildheader((unsigned char *)newoft->hdr.oft.hdr2, &(ft->fh));
1290 aim_tx_enqueue(sess, newoft);
1292 faimdprintf(sess, 2, "faim: OFT: OFT 0x0202 enqueued.\n");
1294 if ( (userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILEFILEREQ)) == NULL)
1301 static int handlehdr_getfile_recv(aim_session_t *sess, aim_conn_t *conn, fu8_t *hdr)
1304 struct aim_fileheader_t *fh;
1305 struct aim_filetransfer_priv *ft;
1306 struct aim_msgcookie_t *cook;
1308 aim_rxcallback_t userfunc;
1310 fh = aim_oft_getfh(hdr);
1312 if (!(cook = aim_checkcookie(sess, fh->bcookie, AIM_COOKIETYPE_OFTGET))) {
1319 faimdprintf(sess, 2, "faim: get_rend: looks like we're ready to send data.(oft 0x0202)\n");
1321 if ( (userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILEFILESEND)) )
1322 ret = userfunc(sess, NULL, conn, fh);
1332 static int handlehdr_getfile_finish(aim_session_t *sess, aim_conn_t *conn, fu8_t *hdr)
1335 struct aim_fileheader_t *fh;
1336 aim_rxcallback_t userfunc;
1338 fh = aim_oft_getfh(hdr);
1340 faimdprintf(sess, 2, "faim: get_rend: looks like we're done with a transfer (oft 0x0204)\n");
1342 if ( (userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILECOMPLETE)) )
1343 userfunc(sess, NULL, conn, fh);
1352 * aim_get_command_rendezvous - OFT equivalent of aim_get_command
1353 * @sess: session to work on
1354 * @conn: conn to pull data from
1356 * this reads and handles data from conn->fd. currently a little rough
1359 faim_internal int aim_get_command_rendezvous(aim_session_t *sess, aim_conn_t *conn)
1363 int hdrlen, hdrtype;
1369 memset(hdrbuf1, 0, sizeof(hdrbuf1));
1371 /* I guess? I didn't understand any of that mess... */
1372 if (conn->subtype == AIM_CONN_SUBTYPE_OFT_GETFILE)
1373 return getcommand_getfile(sess, conn);
1375 /* XXX fix all the error cases here */
1376 if (aim_recv(conn->fd, hdrbuf1, 6) < 6) {
1378 faimdprintf(sess, 2, "faim: rend: read error (fd: %i)\n", conn->fd);
1380 aim_conn_close(conn);
1385 hdrlen = aimutil_get16(hdrbuf1+4);
1388 hdr = malloc(hdrlen);
1390 if (aim_recv(conn->fd, hdr, hdrlen) < hdrlen) {
1391 faimdprintf(sess, 2, "faim: rend: read2 error on %d (%d)\n", conn->fd, hdrlen);
1393 aim_conn_close(conn);
1397 hdrtype = aimutil_get16(hdr);
1399 if (hdrtype == 0x0001)
1400 ret = handlehdr_directim(sess, conn, hdr);
1401 else if (hdrtype == 0x1108) /* getfile listing.txt incoming tx->rx */
1402 ret = handlehdr_getfile_listing(sess, conn, hdr);
1403 else if (hdrtype == 0x1209) /* get file listing ack rx->tx */
1404 ret = handlehdr_getfile_listing2(sess, conn, hdr);
1405 else if (hdrtype == 0x120b) /* get file listing rx confirm */
1406 ret = handlehdr_getfile_listing3(sess, conn, hdr);
1407 else if (hdrtype == 0x120c) /* getfile request */
1408 ret = handlehdr_getfile_request(sess, conn, hdr);
1409 else if (hdrtype == 0x0101) /* getfile sending data */
1410 ret = handlehdr_getfile_sending(sess, conn, hdr);
1411 else if (hdrtype == 0x0202) /* getfile recv data */
1412 ret = handlehdr_getfile_recv(sess, conn, hdr);
1413 else if (hdrtype == 0x0204) /* getfile finished */
1414 ret = handlehdr_getfile_finish(sess, conn, hdr);
1416 faimdprintf(sess, 2,"faim: OFT frame: uknown type %04x\n", hdrtype);
1423 aim_conn_close(conn);
1430 * aim_oft_getfh - extracts an &aim_fileheader_t from buffer hdr.
1431 * @hdr: buffer to extract header from
1433 * returns pointer to new struct on success; %NULL on error.
1436 static struct aim_fileheader_t *aim_oft_getfh(unsigned char *hdr)
1438 struct aim_fileheader_t *fh;
1440 if (!(fh = calloc(1, sizeof(struct aim_fileheader_t))))
1443 /* [0] and [1] are the type. we can ignore those here. */
1445 for(j = 0; j < 8; j++, i++)
1446 fh->bcookie[j] = hdr[i];
1447 fh->encrypt = aimutil_get16(hdr+i);
1449 fh->compress = aimutil_get16(hdr+i);
1451 fh->totfiles = aimutil_get16(hdr+i);
1453 fh->filesleft = aimutil_get16(hdr+i);
1455 fh->totparts = aimutil_get16(hdr+i);
1457 fh->partsleft = aimutil_get16(hdr+i);
1459 fh->totsize = aimutil_get32(hdr+i);
1461 fh->size = aimutil_get32(hdr+i);
1463 fh->modtime = aimutil_get32(hdr+i);
1465 fh->checksum = aimutil_get32(hdr+i);
1467 fh->rfrcsum = aimutil_get32(hdr+i);
1469 fh->rfsize = aimutil_get32(hdr+i);
1471 fh->cretime = aimutil_get32(hdr+i);
1473 fh->rfcsum = aimutil_get32(hdr+i);
1475 fh->nrecvd = aimutil_get32(hdr+i);
1477 fh->recvcsum = aimutil_get32(hdr+i);
1479 memcpy(fh->idstring, hdr+i, 32);
1481 fh->flags = aimutil_get8(hdr+i);
1483 fh->lnameoffset = aimutil_get8(hdr+i);
1485 fh->lsizeoffset = aimutil_get8(hdr+i);
1487 memcpy(fh->dummy, hdr+i, 69);
1489 memcpy(fh->macfileinfo, hdr+i, 16);
1491 fh->nencode = aimutil_get16(hdr+i);
1493 fh->nlanguage = aimutil_get16(hdr+i);
1495 memcpy(fh->name, hdr+i, 64);
1502 * aim_oft_checksum - calculate oft checksum of buffer
1503 * @buffer: buffer of data to checksum
1504 * @bufsize: size of buffer
1505 * @checksum: pointer to integer to place result in (pointer!)
1508 * Note that checksum is a pointer. Checksum should be filled with
1509 * 0xFFFF0000 for each new file; you can have this checksum chunks of
1510 * files in series if you just call it repeatedly in a for(; ; ) loop
1511 * and don't reset the checksum between each call. And you thought we
1512 * didn't care about you and your pathetic client's meomry footprint
1516 * Also, it's been said that this is incorrect as currently
1517 * written. You were warned.
1519 faim_export fu32_t aim_oft_checksum(aim_session_t *sess, const char *buffer, int bufsize, fu32_t *checksum)
1523 fu16_t check0, check1;
1526 check0 = ((*checksum & 0xFF000000) >> 16);
1527 check1 = ((*checksum & 0x00ff0000) >> 16);
1528 for(i = 0; i < bufsize; i++) {
1529 if (i % 2) { /* use check1 -- second byte */
1530 if ( (short)buffer[i] > check1 ) { /* wrapping */
1531 check1 += 0x100; /* this is a cheap way to wrap */
1533 /* if we're wrapping, decrement the other one */
1534 /* XXX: check this corner case */
1540 check1 -= buffer[i];
1541 } else { /* use check0 -- first byte */
1542 if ( (short)buffer[i] > check0 ) { /* wrapping */
1543 check0 += 0x100; /* this is a cheap way to wrap */
1545 /* if we're wrapping, decrement the other one */
1546 /* XXX: check this corner case */
1552 check0 -= buffer[i];
1556 if (check0 > 0xff || check1 > 0xff) {
1557 /* they shouldn't be able to do this. error! */
1558 faimdprintf(sess, 2, "check0 or check1 is too high: 0x%04x, 0x%04x\n", check0, check1);
1562 /* grab just the lowest byte; this should be clean, but just in
1567 *checksum = ((check0 * 0x1000000) + (check1 * 0x10000));
1574 * aim_oft_buildheader - fills a buffer with network-order fh data
1575 * @dest: buffer to fill -- pre-alloced
1576 * @fh: fh to get data from
1578 * returns length written; -1 on error.
1579 * DOES NOT DO BOUNDS CHECKING!
1582 static int oft_buildheader(unsigned char *dest, struct aim_fileheader_t *fh)
1588 for(i = 0; i < 8; i++)
1589 curbyte += aimutil_put8(dest+curbyte, fh->bcookie[i]);
1590 curbyte += aimutil_put16(dest+curbyte, fh->encrypt);
1591 curbyte += aimutil_put16(dest+curbyte, fh->compress);
1592 curbyte += aimutil_put16(dest+curbyte, fh->totfiles);
1593 curbyte += aimutil_put16(dest+curbyte, fh->filesleft);
1594 curbyte += aimutil_put16(dest+curbyte, fh->totparts);
1595 curbyte += aimutil_put16(dest+curbyte, fh->partsleft);
1596 curbyte += aimutil_put32(dest+curbyte, fh->totsize);
1597 curbyte += aimutil_put32(dest+curbyte, fh->size);
1598 curbyte += aimutil_put32(dest+curbyte, fh->modtime);
1599 curbyte += aimutil_put32(dest+curbyte, fh->checksum);
1600 curbyte += aimutil_put32(dest+curbyte, fh->rfrcsum);
1601 curbyte += aimutil_put32(dest+curbyte, fh->rfsize);
1602 curbyte += aimutil_put32(dest+curbyte, fh->cretime);
1603 curbyte += aimutil_put32(dest+curbyte, fh->rfcsum);
1604 curbyte += aimutil_put32(dest+curbyte, fh->nrecvd);
1605 curbyte += aimutil_put32(dest+curbyte, fh->recvcsum);
1606 memcpy(dest+curbyte, fh->idstring, 32);
1608 curbyte += aimutil_put8(dest+curbyte, fh->flags);
1609 curbyte += aimutil_put8(dest+curbyte, fh->lnameoffset);
1610 curbyte += aimutil_put8(dest+curbyte, fh->lsizeoffset);
1611 memcpy(dest+curbyte, fh->dummy, 69);
1613 memcpy(dest+curbyte, fh->macfileinfo, 16);
1615 curbyte += aimutil_put16(dest+curbyte, fh->nencode);
1616 curbyte += aimutil_put16(dest+curbyte, fh->nlanguage);
1617 memset(dest+curbyte, 0x00, 64);
1618 memcpy(dest+curbyte, fh->name, 64);
1620 /* XXX: Filenames longer than 64B */
1627 * aim_getfile_intitiate - Request an OFT getfile session
1628 * @sess: your session,
1629 * @conn: the BOS conn,
1630 * @destsn is the SN to connect to.
1632 * returns a new &aim_conn_t on success, %NULL on error
1634 faim_export aim_conn_t *aim_getfile_initiate(aim_session_t *sess, aim_conn_t *conn, const char *destsn)
1638 struct command_tx_struct *newpacket;
1639 struct aim_conn_t *newconn;
1640 struct aim_filetransfer_priv *priv;
1641 struct aim_msgcookie_t *cookie;
1642 int curbyte, i, listenfd;
1644 struct hostent *hptr;
1645 struct utsname myname;
1649 /* Open our socket */
1651 if ( (listenfd = aim_listenestablish(port)) == -1)
1654 /* get our local IP */
1656 if (uname(&myname) < 0)
1658 if ( (hptr = gethostbyname(myname.nodename)) == NULL)
1660 memcpy(&d, hptr->h_addr_list[0], 4);
1662 aim_putcap(cap, 16, AIM_CAPS_GETFILE);
1664 /* create the OSCAR packet */
1666 if (!(newpacket = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 10+8+2+1+strlen(destsn)+4+4+0x42)))
1668 newpacket->lock = 1;
1672 curbyte += aim_putsnac(newpacket->data+curbyte, 0x0004, 0x0006, 0x0000, sess->snac_nextid);
1674 /* XXX: check the cookie before commiting to using it */
1676 /* Generate a random message cookie
1677 * This cookie needs to be alphanumeric and NULL-terminated to be TOC-compatible. */
1679 curbyte += aimutil_put8(newpacket->data+curbyte, 0x30 + ((u_char) random() % 10));
1681 curbyte += aimutil_put8(newpacket->data+curbyte, 0x00);
1683 /* grab all the data for cookie caching. */
1685 if (!(cookie = (struct aim_msgcookie_t *)calloc(1, sizeof(struct aim_msgcookie_t))))
1687 memcpy(cookie->cookie, newpacket->data+curbyte-8, 8);
1688 cookie->type = AIM_COOKIETYPE_OFTGET;
1690 if (!(priv = (struct aim_filetransfer_priv *)calloc(1, sizeof(struct aim_filetransfer_priv))))
1692 memcpy(priv->cookie, cookie, 8);
1693 memcpy(priv->sn, destsn, sizeof(priv->sn));
1694 memcpy(priv->fh.name, "listing.txt", strlen("listing.txt"));
1697 cookie->data = priv;
1699 aim_cachecookie(sess, cookie);
1702 curbyte += aimutil_put16(newpacket->data+curbyte,0x0002);
1704 /* Destination SN (prepended with byte length) */
1705 curbyte += aimutil_put8(newpacket->data+curbyte,strlen(destsn));
1706 curbyte += aimutil_putstr(newpacket->data+curbyte, destsn, strlen(destsn));
1707 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0003);
1708 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000);
1711 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0005);
1712 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0042);
1714 /* Flag data / ICBM Parameters? */
1715 curbyte += aimutil_put8(newpacket->data+curbyte, 0x00);
1716 curbyte += aimutil_put8(newpacket->data+curbyte, 0x00);
1719 curbyte += aimutil_putstr(newpacket->data+curbyte, (char *)cookie, 8);
1721 /* Capability String */
1722 curbyte += aimutil_putstr(newpacket->data+curbyte, (char *)cap, 0x10);
1724 /* 000a/0002 : 0001 */
1725 curbyte += aimutil_put16(newpacket->data+curbyte, 0x000a);
1726 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0002);
1727 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0001);
1729 /* 0003/0004: IP address */
1730 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0003);
1731 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0004);
1732 for(i = 0; i < 4; i++)
1733 curbyte += aimutil_put8(newpacket->data+curbyte, d[i]);
1735 /* already in network byte order */
1737 /* 0005/0002: Port */
1738 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0005);
1739 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0002);
1740 curbyte += aimutil_put16(newpacket->data+curbyte, port);
1743 curbyte += aimutil_put16(newpacket->data+curbyte, 0x000f);
1744 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000);
1747 curbyte += aimutil_put16(newpacket->data+curbyte, 0x2711);
1748 curbyte += aimutil_put16(newpacket->data+curbyte, 0x000c);
1749 curbyte += aimutil_put32(newpacket->data+curbyte, 0x00120001);
1751 for(i = 0; i < 0x000c - 4; i++)
1752 curbyte += aimutil_put8(newpacket->data+curbyte, 0x00);
1754 newpacket->commandlen = curbyte;
1755 newpacket->lock = 0;
1756 aim_tx_enqueue(sess, newpacket);
1758 /* allocate and set up our connection */
1760 i = fcntl(listenfd, F_GETFL, 0);
1761 fcntl(listenfd, F_SETFL, i | O_NONBLOCK);
1762 newconn = aim_newconn(sess, AIM_CONN_TYPE_RENDEZVOUS_OUT, NULL);
1765 perror("aim_newconn");
1769 newconn->fd = listenfd;
1770 newconn->subtype = AIM_CONN_SUBTYPE_OFT_GETFILE;
1771 newconn->priv = priv;
1772 faimdprintf(sess, 2,"faim: listening (fd = %d, unconnected)\n", newconn->fd);
1779 * aim_oft_getfile_request - request a particular file over an established getfile connection
1780 * @sess: your session
1781 * @conn: the established OFT getfile connection
1782 * @name: filename to request
1783 * @size: size of the file
1786 * returns -1 on error, 0 on successful enqueuing
1788 faim_export int aim_oft_getfile_request(aim_session_t *sess, aim_conn_t *conn, const char *name, int size)
1792 struct command_tx_struct *newoft;
1793 struct aim_filetransfer_priv *ft;
1794 if (!sess || !conn || !conn->priv || !name)
1797 if (!(newoft = aim_tx_new(sess, conn, AIM_FRAMETYPE_OFT, 0x120c, 0))) {
1798 faimdprintf(sess, 2, "faim: aim_accepttransfer: tx_new OFT failed\n");
1804 memcpy(newoft->hdr.oft.magic, "OFT2", 4);
1805 newoft->hdr.oft.hdr2len = 0x100 - 8;
1807 ft = (struct aim_filetransfer_priv *)conn->priv;
1808 ft->fh.filesleft = 1;
1809 ft->fh.totfiles = 1;
1810 ft->fh.totparts = 1;
1811 ft->fh.partsleft = 1;
1812 ft->fh.totsize = size;
1814 ft->fh.checksum = 0;
1815 memcpy(ft->fh.name, name, strlen(name));
1816 memset(ft->fh.name+strlen(name), 0, 1);
1818 if (!(newoft->hdr.oft.hdr2 = (unsigned char *)calloc(1,newoft->hdr.oft.hdr2len))) {
1820 aim_frame_destroy(newoft);
1824 if (!(aim_oft_buildheader(newoft->hdr.oft.hdr2, &(ft->fh)))) {
1826 aim_frame_destroy(newoft);
1832 aim_tx_enqueue(sess, newoft);
1838 * aim_oft_getfile_ack - acknowledge a getfile download as complete
1839 * @sess: your session
1840 * @conn: the getfile conn to send the ack over
1842 * Call this function after you have read all the data in a particular
1843 * filetransfer. Returns -1 on error, 0 on apparent success
1846 faim_export int aim_oft_getfile_ack(aim_session_t *sess, aim_conn_t *conn)
1850 struct command_tx_struct *newoft;
1851 struct aim_filetransfer_priv *ft;
1853 if (!sess || !conn || !conn->priv)
1856 if (!(newoft = aim_tx_new(sess, conn, AIM_FRAMETYPE_OFT, 0x0202, 0))) {
1857 faimdprintf(sess, 2, "faim: aim_accepttransfer: tx_new OFT failed\n");
1863 memcpy(newoft->hdr.oft.magic, "OFT2", 4);
1864 newoft->hdr.oft.hdr2len = 0x100-8;
1866 if (!(newoft->hdr.oft.hdr2 = (char *)calloc(1,newoft->hdr.oft.hdr2len))) {
1868 aim_frame_destroy(newoft);
1872 ft = (struct aim_filetransfer_priv *)conn->priv;
1874 if (!(aim_oft_buildheader((unsigned char *)newoft->hdr.oft.hdr2, &(ft->fh)))) {
1876 aim_frame_destroy(newoft);
1881 aim_tx_enqueue(sess, newoft);
1887 * aim_oft_getfile_end - end a getfile.
1888 * @sess: your session
1889 * @conn: the getfile connection
1891 * call this before you close the getfile connection if you're on the
1892 * receiving/requesting end.
1894 faim_export int aim_oft_getfile_end(aim_session_t *sess, aim_conn_t *conn)
1898 struct command_tx_struct *newoft;
1899 struct aim_filetransfer_priv *ft;
1901 if (!sess || !conn || !conn->priv)
1904 if (!(newoft = aim_tx_new(sess, conn, AIM_FRAMETYPE_OFT, 0x0204, 0))) {
1905 faimdprintf(sess, 2, "faim: aim_accepttransfer: tx_new OFT failed\n");
1911 memcpy(newoft->hdr.oft.magic, "OFT2", 4);
1912 newoft->hdr.oft.hdr2len = 0x100 - 8;
1914 if (!(newoft->hdr.oft.hdr2 = (char *)calloc(1,newoft->hdr.oft.hdr2len))) {
1916 aim_frame_destroy(newoft);
1920 ft = (struct aim_filetransfer_priv *)conn->priv;
1921 ft->state = 4; /* no longer wanting data */
1922 ft->fh.nrecvd = ft->fh.size;
1923 ft->fh.recvcsum = ft->fh.checksum;
1924 ft->fh.flags = 0x21;
1926 if (!(aim_oft_buildheader((unsigned char *)newoft->hdr.oft.hdr2, &(ft->fh)))) {
1928 aim_frame_destroy(newoft);
1933 aim_tx_enqueue(sess, newoft);