X-Git-Url: http://andersk.mit.edu/gitweb/libfaim.git/blobdiff_plain/5ac21963e7e99cbffce3b0bb009a1320885776c7..225174938751264d2d11d880ca820a66961c694c:/aim_ft.c diff --git a/aim_ft.c b/aim_ft.c index d475078..749011f 100644 --- a/aim_ft.c +++ b/aim_ft.c @@ -102,14 +102,14 @@ faim_export int aim_send_im_direct(struct aim_session_t *sess, struct aim_directim_priv *priv = NULL; int i; - if (strlen(msg) >= MAXMSGLEN) - return -1; - - if (!sess || !conn || !(conn->type) || (conn->type != AIM_CONN_TYPE_RENDEZVOUS) || !conn->priv) { + if (!sess || !conn || !(conn->type) || (conn->type != AIM_CONN_TYPE_RENDEZVOUS) || !conn->priv || !msg) { printf("faim: directim: invalid arguments\n"); return -1; }; + if (strlen(msg) >= MAXMSGLEN) + return -1; + priv = (struct aim_directim_priv *)conn->priv; /* NULLish Header */ @@ -406,11 +406,6 @@ faim_export struct aim_conn_t *aim_directim_initiate(struct aim_session_t *sess, * allocate and set up our connection */ -#if 0 - i = fcntl(listenfd, F_GETFL, 0); - fcntl(listenfd, F_SETFL, i | O_NONBLOCK); -#endif - newconn = aim_newconn(sess, AIM_CONN_TYPE_RENDEZVOUS_OUT, NULL); if (!newconn) { perror("aim_newconn"); @@ -449,6 +444,14 @@ faim_export struct aim_conn_t *aim_directim_initiate(struct aim_session_t *sess, return (newconn); } +/* + * struct aim_conn_t *aim_directim_connect(struct aim_session_t *sess, struct aim_conn_t *conn, struct aim_directim_priv *priv) + * sess is the session to append the conn to, + * conn is the BOS connection, + * priv is the filled-in priv data structure for the connection + * returns conn if connected, NULL on error + */ + faim_export struct aim_conn_t *aim_directim_connect(struct aim_session_t *sess, struct aim_conn_t *conn, @@ -471,140 +474,260 @@ faim_export struct aim_conn_t *aim_directim_connect(struct aim_session_t *sess, return newconn; } -faim_export unsigned long aim_accepttransfer(struct aim_session_t *sess, - struct aim_conn_t *conn, - struct aim_conn_t *oftconn, - char *sn, - char *cookie, - unsigned short rendid) +/* + * struct aim_conn_t *aim_directim_getconn(struct aim_session_t *sess, const char *name) + * sess is your session, + * name is the name to get, + * returns conn for directim with name, NULL if none found. + */ + +faim_export struct aim_conn_t *aim_directim_getconn(struct aim_session_t *sess, const char *name) +{ + struct aim_conn_t *cur; + struct aim_directim_priv *priv; + + faim_mutex_lock(&sess->connlistlock); + for (cur = sess->connlist; cur; cur = cur->next) { + if (cur->type != AIM_CONN_TYPE_RENDEZVOUS || cur->subtype != AIM_CONN_SUBTYPE_OFT_DIRECTIM) + continue; + + priv = cur->priv; + if (aim_sncmp(priv->sn, name) == 0) + break; + } + faim_mutex_unlock(&sess->connlistlock); + + return cur; +} + +/* + * aim_accepttransfer: + * accept a file transfer request. + * sess is the session, + * conn is the BOS conn for the CAP reply + * sn is the screenname to send it to, + * cookie is the cookie used + * ip is the ip to connect to + * file is the listing file to use + * rendid is CAP type + * + * returns connection + */ + +faim_export struct aim_conn_t *aim_accepttransfer(struct aim_session_t *sess, + struct aim_conn_t *conn, + char *sn, + char *cookie, + char *ip, + FILE *file, + unsigned short rendid) { struct command_tx_struct *newpacket, *newoft; + + struct aim_conn_t *newconn; struct aim_fileheader_t *listingfh; + struct aim_filetransfer_priv *priv; + struct aim_msgcookie_t *cachedcook; + int curbyte, i; - /* now for the oft bits */ if(rendid == AIM_CAPS_GETFILE) { - printf("jbm: getfile request accept\n"); - if(!(newoft = aim_tx_new(AIM_FRAMETYPE_OFT, 0x1108, oftconn, 0))) { - printf("faim: accept_transfer: tx_new OFT failed\n"); - return -1; - } - - newoft->lock = 1; + + newconn = aim_newconn(sess, AIM_CONN_TYPE_RENDEZVOUS, ip); - memcpy(newoft->hdr.oft.magic, "OFT2", 4); - newoft->hdr.oft.hdr2len = 0xf8; /* 0x100 - 8 */ + newconn->subtype = AIM_CONN_SUBTYPE_OFT_GETFILE; - if (!(newoft->hdr.oft.hdr2 = calloc(1,newoft->hdr.oft.hdr2len))) { - free(newoft); - return -1; - } + if (!newconn || (newconn->fd == -1)) { + perror("aim_newconn"); + faimdprintf(2, "could not connect to %s (fd: %i)\n", ip, newconn?newconn->fd:0); + aim_conn_kill(sess, &newconn); + return NULL; + } else { + priv = (struct aim_filetransfer_priv *)calloc(1, sizeof(struct aim_filetransfer_priv)); + memcpy(priv->cookie, cookie, 8); + strncpy(priv->sn, sn, MAXSNLEN); + strncpy(priv->ip, ip, sizeof(priv->ip)); + newconn->priv = (void *)priv; + faimdprintf(2, "faim: connected to peer (fd = %d)\n", newconn->fd); + } + + /* cache da cookie. COOOOOKIES! */ - listingfh = aim_getlisting(sess); + if(!(cachedcook = (struct aim_msgcookie_t *)calloc(1, sizeof(struct aim_msgcookie_t)))) { + faimdprintf(1, "faim: accepttransfer: couldn't calloc cachedcook. yeep!\n"); + /* XXX die here, or go on? search for cachedcook for future references */ + } - memcpy(listingfh->bcookie, cookie, 8); + if(cachedcook) + memcpy(cachedcook->cookie, cookie, 8); + + /* strncpy(ft->fh.name, miscinfo->value+8, sizeof(ft->fh.name)); */ - curbyte = 0; + if(cachedcook) { /* see above calloc of cachedcook */ + cachedcook->type = AIM_COOKIETYPE_OFTGET; + cachedcook->data = (void *)priv; + + if (aim_cachecookie(sess, cachedcook) != 0) + faimdprintf(1, "faim: ERROR caching message cookie\n"); + } + + if(rendid == AIM_CAPS_GETFILE) { + faimdprintf(2, "faim: getfile request accept\n"); + if(!(newoft = aim_tx_new(AIM_FRAMETYPE_OFT, 0x1108, newconn, 0))) { + faimdprintf(2, "faim: aim_accepttransfer: tx_new OFT failed\n"); + /* XXX: what else do we need to clean up here? */ + return NULL; + } + + newoft->lock = 1; - for(i = 0; i < 8; i++) - curbyte += aimutil_put8(newoft->hdr.oft.hdr2+curbyte, cookie[i]); - curbyte += aimutil_put16(newoft->hdr.oft.hdr2+curbyte, listingfh->encrypt); - curbyte += aimutil_put16(newoft->hdr.oft.hdr2+curbyte, listingfh->compress); - curbyte += aimutil_put16(newoft->hdr.oft.hdr2+curbyte, listingfh->totfiles); - curbyte += aimutil_put16(newoft->hdr.oft.hdr2+curbyte, listingfh->filesleft); - curbyte += aimutil_put16(newoft->hdr.oft.hdr2+curbyte, listingfh->totparts); - curbyte += aimutil_put16(newoft->hdr.oft.hdr2+curbyte, listingfh->partsleft); - curbyte += aimutil_put32(newoft->hdr.oft.hdr2+curbyte, listingfh->totsize); - curbyte += aimutil_put32(newoft->hdr.oft.hdr2+curbyte, listingfh->size); - curbyte += aimutil_put32(newoft->hdr.oft.hdr2+curbyte, listingfh->modtime); - curbyte += aimutil_put32(newoft->hdr.oft.hdr2+curbyte, listingfh->checksum); - curbyte += aimutil_put32(newoft->hdr.oft.hdr2+curbyte, listingfh->rfrcsum); - curbyte += aimutil_put32(newoft->hdr.oft.hdr2+curbyte, listingfh->rfsize); - curbyte += aimutil_put32(newoft->hdr.oft.hdr2+curbyte, listingfh->cretime); - curbyte += aimutil_put32(newoft->hdr.oft.hdr2+curbyte, listingfh->rfcsum); - curbyte += aimutil_put32(newoft->hdr.oft.hdr2+curbyte, listingfh->nrecvd); - curbyte += aimutil_put32(newoft->hdr.oft.hdr2+curbyte, listingfh->recvcsum); - - memcpy(newoft->hdr.oft.hdr2+curbyte, listingfh->idstring, 32); - curbyte += 32; - - curbyte += aimutil_put8(newoft->hdr.oft.hdr2+curbyte, listingfh->flags); - curbyte += aimutil_put8(newoft->hdr.oft.hdr2+curbyte, listingfh->lnameoffset); - curbyte += aimutil_put8(newoft->hdr.oft.hdr2+curbyte, listingfh->lsizeoffset); - - memcpy(newoft->hdr.oft.hdr2+curbyte, listingfh->dummy, 69); - curbyte += 69; + memcpy(newoft->hdr.oft.magic, "OFT2", 4); + newoft->hdr.oft.hdr2len = 0xf8; /* 0x100 - 8 */ - memcpy(newoft->hdr.oft.hdr2+curbyte, listingfh->macfileinfo, 16); - curbyte += 16; + if(!(listingfh = aim_getlisting(file))) { + return NULL; + } - curbyte += aimutil_put16(newoft->hdr.oft.hdr2+curbyte, listingfh->nencode); - curbyte += aimutil_put16(newoft->hdr.oft.hdr2+curbyte, listingfh->nlanguage); + if (!(newoft->hdr.oft.hdr2 = (char *)calloc(1,newoft->hdr.oft.hdr2len))) { + free(newoft); + return NULL; + } - memcpy(newoft->hdr.oft.hdr2+curbyte, listingfh->name, 64); - curbyte += 64; + memcpy(listingfh->bcookie, cookie, 8); - free(listingfh); + aim_oft_buildheader((void *)newoft->hdr.oft.hdr2, listingfh); - newoft->lock = 0; - aim_tx_enqueue(sess, newoft); - printf("faim: getfile: OFT listing enqueued.\n"); + free(listingfh); + + newoft->lock = 0; + aim_tx_enqueue(sess, newoft); + printf("faim: getfile: OFT listing enqueued.\n"); - } + } + /* OSCAR CAP accept packet */ - if(!(newpacket = aim_tx_new(AIM_FRAMETYPE_OSCAR, 0x0002, conn, 10+8+2+1+strlen(sn)+4+2+8+16))) - return -1; + if(!(newpacket = aim_tx_new(AIM_FRAMETYPE_OSCAR, 0x0002, conn, 10+8+2+1+strlen(sn)+4+2+8+16))) + return NULL; - newpacket->lock = 1; + newpacket->lock = 1; - curbyte = aim_putsnac(newpacket->data, 0x0004, 0x0006, 0x0000, sess->snac_nextid); - for (i = 0; i < 8; i++) - curbyte += aimutil_put8(newpacket->data+curbyte, cookie[i]); - curbyte += aimutil_put16(newpacket->data+curbyte, 0x0002); - curbyte += aimutil_put8(newpacket->data+curbyte, strlen(sn)); - curbyte += aimutil_putstr(newpacket->data+curbyte, sn, strlen(sn)); - curbyte += aimutil_put16(newpacket->data+curbyte, 0x0005); - curbyte += aimutil_put16(newpacket->data+curbyte, 0x001a); - curbyte += aimutil_put16(newpacket->data+curbyte, 0x0002 /* accept */); - for (i = 0; i < 8; i++) - curbyte += aimutil_put8(newpacket->data+curbyte, cookie[i]); - curbyte += aim_putcap(newpacket->data+curbyte, 0x10, rendid); - - newpacket->lock = 0; - aim_tx_enqueue(sess, newpacket); - - + curbyte = aim_putsnac(newpacket->data, 0x0004, 0x0006, 0x0000, sess->snac_nextid); + for (i = 0; i < 8; i++) + curbyte += aimutil_put8(newpacket->data+curbyte, cookie[i]); + curbyte += aimutil_put16(newpacket->data+curbyte, 0x0002); + curbyte += aimutil_put8(newpacket->data+curbyte, strlen(sn)); + curbyte += aimutil_putstr(newpacket->data+curbyte, sn, strlen(sn)); + curbyte += aimutil_put16(newpacket->data+curbyte, 0x0005); + curbyte += aimutil_put16(newpacket->data+curbyte, 0x001a); + curbyte += aimutil_put16(newpacket->data+curbyte, 0x0002 /* accept */); + for (i = 0; i < 8; i++) + curbyte += aimutil_put8(newpacket->data+curbyte, cookie[i]); + curbyte += aim_putcap(newpacket->data+curbyte, 0x10, rendid); + + newpacket->lock = 0; + aim_tx_enqueue(sess, newpacket); - return (sess->snac_nextid++); + return newconn; + } + return NULL; } /* - * aim_getlisting() + * aim_getlisting(FILE *file) * - * Get file listing.txt info. where else to put it? i - * dunno. client-side issue for sure tho. for now we just side-step - * the issue with a nice default. =) - * + * file is an opened listing file + * returns a pointer to the filled-in fileheader_t + * + * currently omits checksum. we'll fix this when AOL breaks us, i + * guess. + * */ -faim_internal struct aim_fileheader_t *aim_getlisting(struct aim_session_t *sess) +faim_internal struct aim_fileheader_t *aim_getlisting(FILE *file) { struct aim_fileheader_t *fh; + u_long totsize = 0, size = 0, checksum = 0xffff0000; + short totfiles = 0; + char *linebuf, sizebuf[9]; + + int linelength = 1024; + + /* XXX: if we have a line longer than 1024chars, God help us. */ + if( (linebuf = (char *)calloc(1, linelength)) == NULL ) { + faimdprintf(2, "linebuf calloc failed\n"); + return NULL; + } + + if(fseek(file, 0, SEEK_END) == -1) { /* use this for sanity check */ + perror("getlisting END1 fseek:"); + faimdprintf(2, "getlising fseek END1 error\n"); + } + + if(fgetpos(file, &size) == -1) { + perror("getlisting END1 getpos:"); + faimdprintf(2, "getlising getpos END1 error\n"); + } + + if(fseek(file, 0, SEEK_SET) != 0) { + perror("getlesting fseek(SET):"); + faimdprintf(2, "faim: getlisting: couldn't seek to beginning of listing file\n"); + } + + bzero(linebuf, linelength); + + size = 0; + + while(fgets(linebuf, linelength, file)) { + totfiles++; + bzero(sizebuf, 9); + + size += strlen(linebuf); + + if(strlen(linebuf) < 23) { + faimdprintf(2, "line \"%s\" too short. skipping\n", linebuf); + continue; + } + if(linebuf[strlen(linebuf)-1] != '\n') { + faimdprintf(2, "faim: OFT: getlisting -- hit EOF or line too long!\n"); + } + + memcpy(sizebuf, linebuf+17, 8); + + totsize += strtol(sizebuf, NULL, 10); + bzero(linebuf, linelength); + } + + /* if(size != 0) { + faimdprintf(2, "faim: getlisting: size != 0 after while.. %i\n", size); + }*/ + + if(fseek(file, 0, SEEK_SET) == -1) { + perror("getlisting END2 fseek:"); + faimdprintf(2, "getlising fseek END2 error\n"); + } + + free(linebuf); + + /* we're going to ignore checksumming the data for now -- that + * requires walking the whole listing.txt. it should probably be + * done at register time and cached, but, eh. */ if(!(fh = (struct aim_fileheader_t*)calloc(1, sizeof(struct aim_fileheader_t)))) return NULL; + printf( "faim: OFT: getlisting: totfiles: %u, totsize: %lu, size: %lu\n", totfiles, totsize, size); + fh->encrypt = 0x0000; - fh->compress = 0x0000; - fh->totfiles = 0x0001; - fh->filesleft = 0x0001; + fh->compress = 0x0000; + fh->totfiles = totfiles; + fh->filesleft = totfiles; /* is this right ?*/ fh->totparts = 0x0001; fh->partsleft = 0x0001; - fh->totsize = 0x00000064; - fh->size = 0x00000024; /* ls -l listing.txt */ - fh->modtime = (int)time(NULL); /*0x39441fb4; */ - fh->checksum = 0xb8350000; + fh->totsize = totsize; + fh->size = size; /* ls -l listing.txt */ + fh->modtime = (int)time(NULL); /* we'll go with current time for now */ + fh->checksum = checksum; /* XXX: checksum ! */ fh->rfcsum = 0x00000000; fh->rfsize = 0x00000000; fh->cretime = 0x00000000; @@ -612,28 +735,25 @@ faim_internal struct aim_fileheader_t *aim_getlisting(struct aim_session_t *sess fh->nrecvd = 0x00000000; fh->recvcsum = 0x00000000; - memset(fh->idstring, 0, 32/*sizeof(fh->idstring)*/); - memcpy(fh->idstring, "OFT_Windows ICBMFT V1.1 32", 32/*sizeof(fh->idstring)*/); - memset(fh->idstring+strlen(fh->idstring), 0, 32-strlen(fh->idstring)); /* jbm hack */ + /* memset(fh->idstring, 0, sizeof(fh->idstring)); */ + memcpy(fh->idstring, "OFT_Windows ICBMFT V1.1 32", sizeof(fh->idstring)); + memset(fh->idstring+strlen(fh->idstring), 0, sizeof(fh->idstring)-strlen(fh->idstring)); fh->flags = 0x02; fh->lnameoffset = 0x1a; fh->lsizeoffset = 0x10; - memset(fh->dummy, 0, 69/*sizeof(fh->dummy)*/); - /* fh->dummy = ;*/ + /* memset(fh->dummy, 0, sizeof(fh->dummy)); */ + memset(fh->macfileinfo, 0, sizeof(fh->macfileinfo)); - memset(fh->macfileinfo, 0, 16/*sizeof(fh->macfileinfo)*/); - /* fh->macfileinfo = ; */ - - fh->nencode = 0x0000; + fh->nencode = 0x0000; /* we need to figure out these encodings for filenames */ fh->nlanguage = 0x0000; - memset(fh->name, 0, 64/*sizeof(fh->name)*/); - memcpy(fh->name, "listing.txt", 64 /*sizeof(fh->name)*/); - memset(fh->name+strlen(fh->name), 0, 64-strlen(fh->name)); /* jbm hack */ + /* memset(fh->name, 0, sizeof(fh->name)); */ + memcpy(fh->name, "listing.txt", sizeof(fh->name)); + memset(fh->name+strlen(fh->name), 0, 64-strlen(fh->name)); - printf("jbm: fh name %s / %s\n", fh->name, (fh->name+(strlen(fh->name)))); + faimdprintf(2, "faim: OFT: listing fh name %s / %s\n", fh->name, (fh->name+(strlen(fh->name)))); return fh; } @@ -683,7 +803,7 @@ faim_internal int aim_listenestablish(u_short portnum) const int on = 1; struct sockaddr_in sockin; - if ((listenfd = socket(PF_INET, SOCK_STREAM, AF_INET)) < 0) { + if ((listenfd = socket(AF_INET, SOCK_STREAM, 0)) < 0) { perror("socket(listenfd)"); return -1; } @@ -707,15 +827,11 @@ faim_internal int aim_listenestablish(u_short portnum) } return listenfd; -} #endif } faim_internal int aim_get_command_rendezvous(struct aim_session_t *sess, struct aim_conn_t *conn) { - - /* XXX: NOT THREAD SAFE RIGHT NOW. the locks are acting up. deal. -- jbm */ - unsigned char hdrbuf1[6]; unsigned char *hdr = NULL; int hdrlen, hdrtype; @@ -728,27 +844,82 @@ faim_internal int aim_get_command_rendezvous(struct aim_session_t *sess, struct faim_mutex_lock(&conn->active); /* gets locked down for the entirety */ if ( (hdrlen = aim_recv(conn->fd, hdrbuf1, 6)) < 6) { + + faimdprintf(2, "faim: rend: read error (fd: %i) %02x%02x%02x%02x%02x%02x (%i)\n", conn->fd, hdrbuf1[0],hdrbuf1[1],hdrbuf1[0],hdrbuf1[0],hdrbuf1[0],hdrbuf1[0],hdrlen); + faim_mutex_unlock(&conn->active); + if(hdrlen < 0) perror("read"); - printf("faim: rend: read error (fd: %i) %02x%02x%02x%02x%02x%02x (%i)\n", conn->fd, hdrbuf1[0],hdrbuf1[1],hdrbuf1[0],hdrbuf1[0],hdrbuf1[0],hdrbuf1[0],hdrlen); - faim_mutex_unlock(&conn->active); - aim_conn_close(conn); - return -1; + else { /* disconnected */ + switch(conn->subtype) { + case AIM_CONN_SUBTYPE_OFT_DIRECTIM: { /* XXX: clean up cookies here ? */ + struct aim_directim_priv *priv = NULL; + if(!(priv = (struct aim_directim_priv *)conn->priv) ) + return -1; /* not much we can do */ + aim_uncachecookie(sess, priv->cookie, AIM_COOKIETYPE_OFTIM); + + + if ( (userfunc = aim_callhandler(conn, AIM_CB_FAM_OFT, AIM_CB_OFT_DIRECTIMDISCONNECT)) ) { + aim_conn_close(conn); + return userfunc(sess, NULL, conn, priv->sn); + } + + break; + } + + case AIM_CONN_SUBTYPE_OFT_GETFILE: { + struct aim_filetransfer_priv *priv; + if(!(priv = (struct aim_filetransfer_priv *)conn->priv)) + return -1; + + aim_uncachecookie(sess, priv->cookie, AIM_COOKIETYPE_OFTGET); + + if ( (userfunc = aim_callhandler(conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILEDISCONNECT)) ) { + aim_conn_close(conn); + return userfunc(sess, NULL, conn, priv->sn); + } + + break; + } + + case AIM_CONN_SUBTYPE_OFT_SENDFILE: { + struct aim_filetransfer_priv *priv; + if(!(priv = (struct aim_filetransfer_priv *)conn->priv)) + return -1; + + aim_uncachecookie(sess, priv->cookie, AIM_COOKIETYPE_OFTSEND); + + if ( (userfunc = aim_callhandler(conn, AIM_CB_FAM_OFT, AIM_CB_OFT_SENDFILEDISCONNECT)) ) { + aim_conn_close(conn); + return userfunc(sess, NULL, conn, priv->sn); + } + + break; + } + } + + aim_conn_close(conn); + aim_conn_kill(sess, &conn); + + return -1; + } } hdrlen = aimutil_get16(hdrbuf1+4); hdrlen -= 6; - if (!(hdr = malloc(hdrlen))) + if (!(hdr = malloc(hdrlen))) { + faim_mutex_unlock(&conn->active); return -1; + } if (aim_recv(conn->fd, hdr, hdrlen) < hdrlen) { perror("read"); - printf("faim: rend: read2 error\n"); + faimdprintf(2,"faim: rend: read2 error\n"); free(hdr); faim_mutex_unlock(&conn->active); aim_conn_close(conn); - return 0; /* see comment on previous read check */ + return -1; } hdrtype = aimutil_get16(hdr); @@ -768,9 +939,7 @@ faim_internal int aim_get_command_rendezvous(struct aim_session_t *sess, struct strncpy(priv->sn, snptr, MAXSNLEN); -#if 0 - printf("faim: OFT frame: %04x / %04x / %04x / %s\n", hdrtype, payloadlength, flags, snptr); -#endif + faimdprintf(2, "faim: OFT frame: %04x / %04x / %04x / %s\n", hdrtype, payloadlength, flags, snptr); if (flags == 0x000e) { faim_mutex_unlock(&conn->active); @@ -781,7 +950,7 @@ faim_internal int aim_get_command_rendezvous(struct aim_session_t *sess, struct if(! (msg = calloc(1, payloadlength+1)) ) { faim_mutex_unlock(&conn->active); - return 0; + return -1; } if (aim_recv(conn->fd, msg, payloadlength) < payloadlength) { @@ -794,9 +963,8 @@ faim_internal int aim_get_command_rendezvous(struct aim_session_t *sess, struct } faim_mutex_unlock(&conn->active); msg[payloadlength] = '\0'; -#if 0 - printf("faim: directim: %s/%04x/%04x/%s\n", snptr, payloadlength, flags, msg); -#endif + faimdprintf(2, "faim: directim: %s/%04x/%04x/%s\n", snptr, payloadlength, flags, msg); + if ( (userfunc = aim_callhandler(conn, AIM_CB_FAM_OFT, AIM_CB_OFT_DIRECTIMINCOMING)) ) i = userfunc(sess, NULL, conn, snptr, msg); @@ -805,31 +973,82 @@ faim_internal int aim_get_command_rendezvous(struct aim_session_t *sess, struct return i; } break; - } - case 0x1209: { /* get file first */ + } +#if 0 + /* currently experimental to a non-compiling degree */ + case 0x1108: { /* getfile listing.txt incoming tx->rx */ struct aim_filetransfer_priv *ft; struct aim_fileheader_t *fh; struct aim_msgcookie_t *cook; + struct aim_conn_type *newoft; int commandlen; char *data; - printf("faim: rend: fileget 0x1209\n"); + faimdprintf(2,"faim: rend: fileget 0x1108\n"); + + if(!(ft = (struct aim_filetransfer_priv *)calloc(1, sizeof(struct aim_filetransfer_priv)))) { + faimdprintf(2, "faim: couldn't malloc ft. um. bad. bad bad. file transfer will likely fail, sorry.\n"); + faim_mutex_unlock(&conn->active); + return -1; + } + + ft->state = 1; /* we're waaaaiiiting.. */ - if(hdrlen != 0x100) - printf("faim: fileget_command(1209): um. hdrlen != 0x100.. 0x%x\n", hdrlen); + fh = aim_oft_getfh(hdr); + + memcpy(&(ft->fh), fh, sizeof(struct aim_fileheader_t)); + if(!(cook = aim_checkcookie(sess, ft->fh.bcookie, AIM_COOKIETYPE_OFTGET))) { + faim_mutex_unlock(&conn->active); + return -1; + } + + if(cook->data) + free(cook->data); + + cook->data = ft; + + aim_cachecookie(sess, cook); + + if(!(newoft = aim_tx_new(AIM_FRAMETYPE_OFT, 0x1209, conn, 0))) { + /* XXX: what else do we need to clean up here? */ + faim_mutex_unlock(&conn->active); + return -1; + } + + + aim_oft_buildheader((void *)newoft->hdr.oft.hdr2, ft->fh); /* no change */ + newoft->lock = 0; + aim_tx_enqueue(sess, newoft); + break; + } +#endif + case 0x1209: { /* get file listing ack rx->tx */ + struct aim_filetransfer_priv *ft; + struct aim_fileheader_t *fh; + struct aim_msgcookie_t *cook; + + int commandlen; + char *data; + + faimdprintf(2,"faim: rend: fileget 0x1209\n"); + if(!(ft = (struct aim_filetransfer_priv *)calloc(1, sizeof(struct aim_filetransfer_priv)))) { - printf("faim: couldn't malloc ft. um. bad. bad bad. file transfer will likely fail, sorry.\n"); + faimdprintf(2, "faim: couldn't malloc ft. um. bad. bad bad. file transfer will likely fail, sorry.\n"); faim_mutex_unlock(&conn->active); - return 0; + return -1; } fh = aim_oft_getfh(hdr); memcpy(&(ft->fh), fh, sizeof(struct aim_fileheader_t)); - cook = aim_checkcookie(sess, (unsigned char *)ft->fh.bcookie, AIM_COOKIETYPE_OFTGET); + cook = aim_checkcookie(sess, ft->fh.bcookie, AIM_COOKIETYPE_OFTGET); + + /* we currently trust the other client to be giving us Valid + * Enough input, else this gets to be a messy function (and we + * won't break like winaim does when it gets bad input =) */ if(cook->data) free(cook->data); /* XXX */ @@ -838,17 +1057,36 @@ faim_internal int aim_get_command_rendezvous(struct aim_session_t *sess, struct aim_cachecookie(sess, cook); - commandlen = 36; + /* XXX: have this send chunks of the file instead of the whole + * file. requires rethinking some code. */ + + if(fseek(sess->oft.listing, 0, SEEK_SET) != 0) { + perror("get_command_rendezvous 1209 fseek(SET):"); + faimdprintf(2, "faim: getlisting: couldn't seek to beginning of listing file\n"); + } + commandlen = ft->fh.size; + + if((data = (char *)calloc(1, commandlen)) == NULL) { + faimdprintf(2, "faim: get_command_rendezvous 1209: couldn't malloc data.\n"); + faim_mutex_unlock(&conn->active); + return -1; - data = calloc(1, commandlen); - memcpy(data, "01/01/1999 00:00 100 file.txt\r\n", commandlen); + } + + for(commandlen = 0; commandlen < ft->fh.size; commandlen++) + if( (data[commandlen] = (unsigned char)fgetc(sess->oft.listing)) == EOF) + faimdprintf(2, "faim: get_command_rendezvous 1209: got early EOF (error?)\n"); - if (send(conn->fd, data, commandlen, 0) != commandlen) { + commandlen = ft->fh.size; + + if (write(conn->fd, data, commandlen) != commandlen) { perror("listing write error"); } faim_mutex_unlock(&conn->active); - printf("jbm: hit end of 1209\n"); + faimdprintf(2, "faim: get_command_rendezvous: hit end of 1209\n"); + + free(data); break; } @@ -858,22 +1096,22 @@ faim_internal int aim_get_command_rendezvous(struct aim_session_t *sess, struct struct aim_fileheader_t *fh; - printf("faim: rend: fileget 120b\n"); + faimdprintf(2, "faim: rend: fileget 120b\n"); if(!(ft = (struct aim_filetransfer_priv *)calloc(1, sizeof(struct aim_filetransfer_priv)))) { - printf("faim: couldn't malloc ft. um. bad. bad bad. file transfer will likely fail, sorry.\n"); + faimdprintf(2, "faim: couldn't malloc ft. um. bad. bad bad. file transfer will likely fail, sorry.\n"); faim_mutex_unlock(&conn->active); - return 0; + return -1; } - if(hdrlen != 0x100) - printf("faim: fileget_command(120b): um. hdrlen != 0x100..\n"); - fh = aim_oft_getfh(hdr); memcpy(&(ft->fh), fh, sizeof(struct aim_fileheader_t)); - - cook = aim_checkcookie(sess, (unsigned char *)ft->fh.bcookie, AIM_COOKIETYPE_OFTGET); + + if(!(cook = aim_checkcookie(sess, ft->fh.bcookie, AIM_COOKIETYPE_OFTGET))) { + faim_mutex_unlock(&conn->active); + return -1; + } if(cook->data) free(cook->data); /* XXX: integrate cookie caching */ @@ -883,7 +1121,9 @@ faim_internal int aim_get_command_rendezvous(struct aim_session_t *sess, struct aim_cachecookie(sess, cook); faim_mutex_unlock(&conn->active); - + + /* call listing.txt rx confirm */ + break; } case 0x120c: { /* yet more get file */ @@ -891,24 +1131,30 @@ faim_internal int aim_get_command_rendezvous(struct aim_session_t *sess, struct struct aim_msgcookie_t *cook; struct aim_fileheader_t *listingfh; struct command_tx_struct *newoft; - int curbyte, i; + + int i; + + rxcallback_t userfunc; printf("faim: rend: fileget 120c\n"); if(!(ft = (struct aim_filetransfer_priv *)calloc(1, sizeof(struct aim_filetransfer_priv)))) { printf("faim: couldn't malloc ft. um. bad. bad bad. file transfer will likely fail, sorry.\n"); faim_mutex_unlock(&conn->active); - return 0; + return -1; } if(hdrlen != 0x100) printf("faim: fileget_command(120c): um. hdrlen != 0x100..\n"); - listingfh = aim_oft_getfh(hdr); + listingfh = aim_oft_getfh((char *)hdr); memcpy(&(ft->fh), listingfh, sizeof(struct aim_fileheader_t)); - cook = aim_checkcookie(sess, (unsigned char *)ft->fh.bcookie, AIM_COOKIETYPE_OFTGET); + if(!(cook = aim_checkcookie(sess, ft->fh.bcookie, AIM_COOKIETYPE_OFTGET))) { + faim_mutex_unlock(&conn->active); + return -1; + } if(cook->data) free(cook->data); /* XXX */ @@ -919,121 +1165,89 @@ faim_internal int aim_get_command_rendezvous(struct aim_session_t *sess, struct faim_mutex_unlock(&conn->active); - printf("faim: fileget: %s seems to want %s\n", ft->sn, ft->fh.name); - - if(!(newoft = aim_tx_new(AIM_FRAMETYPE_OFT, 0x0101, conn, 0/*listingfh->size*/))) { - printf("faim: send_final_transfer: tx_new OFT failed\n"); - return 0; + faimdprintf(2, "faim: fileget: %s seems to want %s\n", ft->sn, ft->fh.name); + + if( (userfunc = aim_callhandler(conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILEFILEREQ)) ) + i = userfunc(sess, NULL, conn, &ft->fh, cook->cookie); + + if(i < 0) + return -1; + + if(!(newoft = aim_tx_new(AIM_FRAMETYPE_OFT, 0x0101, conn, 0))) { + faimdprintf(2, "faim: send_final_transfer: tx_new OFT failed\n"); + return -1; } - /* XXX: actually implement Real Handling of all this */ - - printf("jbm: listingfh->size: 0x%lx\n", listingfh->size); - newoft->lock = 1; - - /* if(!(newoft->data = calloc(1, listingfh->size))) { - printf("newoft data malloc failed. bombing.\n"); - return 0; - }*/ - - if(newoft->commandlen > 0) { - int i; - memset(newoft->data, 0, newoft->commandlen); - for(i = 0; i < (signed)newoft->commandlen; i++) - newoft->data[i] = 0x30 + (i%10); - - // memcpy(newoft->data, "This has been a Test\r\n-josh\r\n", newoft->commandlen); - } - + memcpy(newoft->hdr.oft.magic, "OFT2", 4); newoft->hdr.oft.hdr2len = 0xf8; /* 0x100 - 8 */ if (!(newoft->hdr.oft.hdr2 = calloc(1,newoft->hdr.oft.hdr2len))) { - if(newoft->data) - free(newoft->data); /* XXX: make this into a destructor function */ - free(newoft); - return 0; + newoft->lock = 0; + aim_tx_destroy(newoft); + return -1; } - - memcpy(listingfh->bcookie, ft->fh.bcookie, 8); - - curbyte = 0; - for(i = 0; i < 8; i++) - curbyte += aimutil_put8(newoft->hdr.oft.hdr2+curbyte, listingfh->bcookie[i]); - curbyte += aimutil_put16(newoft->hdr.oft.hdr2+curbyte, listingfh->encrypt); - curbyte += aimutil_put16(newoft->hdr.oft.hdr2+curbyte, listingfh->compress); - curbyte += aimutil_put16(newoft->hdr.oft.hdr2+curbyte, listingfh->totfiles); - curbyte += aimutil_put16(newoft->hdr.oft.hdr2+curbyte, listingfh->filesleft); - curbyte += aimutil_put16(newoft->hdr.oft.hdr2+curbyte, listingfh->totparts); - curbyte += aimutil_put16(newoft->hdr.oft.hdr2+curbyte, listingfh->partsleft); - curbyte += aimutil_put32(newoft->hdr.oft.hdr2+curbyte, listingfh->totsize); - curbyte += aimutil_put32(newoft->hdr.oft.hdr2+curbyte, listingfh->size); - curbyte += aimutil_put32(newoft->hdr.oft.hdr2+curbyte, listingfh->modtime); - curbyte += aimutil_put32(newoft->hdr.oft.hdr2+curbyte, listingfh->checksum); - curbyte += aimutil_put32(newoft->hdr.oft.hdr2+curbyte, listingfh->rfrcsum); - curbyte += aimutil_put32(newoft->hdr.oft.hdr2+curbyte, listingfh->rfsize); - curbyte += aimutil_put32(newoft->hdr.oft.hdr2+curbyte, listingfh->cretime); - curbyte += aimutil_put32(newoft->hdr.oft.hdr2+curbyte, listingfh->rfcsum); - curbyte += aimutil_put32(newoft->hdr.oft.hdr2+curbyte, 0 /*listingfh->nrecvd*/); - curbyte += aimutil_put32(newoft->hdr.oft.hdr2+curbyte, 0/*listingfh->recvcsum*/); - - strncpy((char *)newoft->hdr.oft.hdr2+curbyte, listingfh->idstring, 32); - curbyte += 32; - - curbyte += aimutil_put8(newoft->hdr.oft.hdr2+curbyte, 0x20 /*listingfh->flags */); - curbyte += aimutil_put8(newoft->hdr.oft.hdr2+curbyte, listingfh->lnameoffset); - curbyte += aimutil_put8(newoft->hdr.oft.hdr2+curbyte, listingfh->lsizeoffset); - - memcpy(newoft->hdr.oft.hdr2+curbyte, listingfh->dummy, 69); - curbyte += 69; + /* memcpy(listingfh->bcookie, ft->fh.bcookie, 8); */ - memcpy(newoft->hdr.oft.hdr2+curbyte, listingfh->macfileinfo, 16); - curbyte += 16; + listingfh->nrecvd = 0; /* these need reset for protocol-correctness */ + listingfh->recvcsum = 0; - curbyte += aimutil_put16(newoft->hdr.oft.hdr2+curbyte, listingfh->nencode); - curbyte += aimutil_put16(newoft->hdr.oft.hdr2+curbyte, listingfh->nlanguage); - - strncpy((char *)newoft->hdr.oft.hdr2+curbyte, listingfh->name, 64); - curbyte += 64; + aim_oft_buildheader((void *)newoft->hdr.oft.hdr2, listingfh); + + newoft->lock = 0; + aim_tx_enqueue(sess, newoft); + faimdprintf(2, "faim: OFT: OFT file enqueued.\n"); + + if( (userfunc = aim_callhandler(conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILEFILEREQ)) == NULL) + return 1; + + i = userfunc(sess, NULL, conn, listingfh, listingfh->bcookie); free(listingfh); - newoft->lock = 0; - aim_tx_enqueue(sess, newoft); - printf("jbm: OFT listing enqueued.\n"); + return i; break; } case 0x0202: { /* get file: ready to recieve data */ - char *c; - int i; - struct aim_fileheader_t *fh; - fh = aim_oft_getfh(hdr); - - c = (char *)calloc(1, fh->size); - - printf("looks like we're ready to send data.(oft 0x0202)\n"); + fh = aim_oft_getfh((char *)hdr); + faimdprintf(2, "faim: get_rend: looks like we're ready to send data.(oft 0x0202)\n"); + faim_mutex_unlock(&conn->active); - for(i = 0; i < fh->size; i++) - c[i] = 0x30 + (i%10); + if ( (userfunc = aim_callhandler(conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILEFILESEND)) == NULL) + return 1; - if ( (i = send(conn->fd, c, fh->size, 0)) != fh->size ) { - printf("whoopsy, didn't write it all...\n"); - } + return userfunc(sess, NULL, conn, fh); - faim_mutex_unlock(&conn->active); + free(fh); break; } case 0x0204: { /* get file: finished. close it up */ - printf("looks like we're done with a transfer (oft 0x0204)\n"); + int i; + + struct aim_fileheader_t *fh; + fh = aim_oft_getfh((char *)hdr); + + faimdprintf(2, "faim: get_rend: looks like we're done with a transfer (oft 0x0204)\n"); + faim_mutex_unlock(&conn->active); - aim_conn_close(conn); + + if ( (userfunc = aim_callhandler(conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILECOMPLETE)) ) + i = userfunc(sess, NULL, conn, fh); + else + i = 1; + + /* + free(fh); */ + /* not sure where to do this yet, as we need to keep it to allow multiple file sends... bleh */ + + return i; break; } default: { @@ -1050,9 +1264,43 @@ faim_internal int aim_get_command_rendezvous(struct aim_session_t *sess, struct } /* - * this currently feeds totally bogus data + * aim_oft_registerlisting() + * sess: aim session + * file: opened FILE * + * listingdir: the path to listing.txt + * returns -1 on error, 0 on success. + * + * it's not my problem if the listing fd is already set. */ +faim_export int aim_oft_registerlisting(struct aim_session_t *sess, FILE *file, char* listingdir) +{ + if(!sess) + return -1; + + /* XXX: checksum each file in the listing */ + +#if 0 + if(sess->oft.listing) { + faimdprintf(1, "We already have a file pointer. Closing and overwriting.\n"); + fclose(sess->oft.listing); + } +#endif + sess->oft.listing = file; +#if 0 + if(sess->oft.listingdir) { + faimdprintf(1, "We already have a directory string. Freeing and overwriting\n"); + free(sess->oft.listingdir); + } +#endif + + if( (sess->oft.listingdir = (char *)calloc(1, strlen(listingdir)+1)) ) + memcpy(sess->oft.listingdir, listingdir, strlen(listingdir)); + else + return -1; + return 0; +} + faim_internal struct aim_fileheader_t *aim_oft_getfh(unsigned char *hdr) { struct aim_fileheader_t *fh; @@ -1126,3 +1374,511 @@ faim_internal struct aim_fileheader_t *aim_oft_getfh(unsigned char *hdr) return fh; } + +faim_export int aim_oft_checksum(char *buffer, int bufsize, int *checksum) +{ + short check0, check1; + int i; + + check0 = ((*checksum & 0xFF000000) >> 16); + check1 = ((*checksum & 0x00ff0000) >> 16); + + for(i = 0; i < bufsize; i++) { + + if(i % 2) { /* use check1 -- second byte */ + if ( (short)buffer[i] > check1 ) { /* wrapping */ + + check1 += 0x100; /* this is a cheap way to wrap */ + + /* if we're wrapping, decrement the other one */ + if(check0 == 0) /* XXX: check this corner case */ + check0 = 0x00ff; + else + check0--; + } + + check1 -= buffer[i]; + } else { /* use check0 -- first byte */ + if ( (short)buffer[i] > check0 ) { /* wrapping */ + + check0 += 0x100; /* this is a cheap way to wrap */ + + /* if we're wrapping, decrement the other one */ + if(check1 == 0) /* XXX: check this corner case */ + check1 = 0x00ff; + else + check1--; + } + + check0 -= buffer[i]; + } + } + + if(check0 > 0xff || check1 > 0xff) { /* they shouldn't be able to do this. error! */ + faimdprintf(2, "check0 or check1 is too high: 0x%04x, 0x%04x\n", check0, check1); + return -1; + } + + check0 &= 0xff; /* grab just the lowest byte */ + check1 &= 0xff; /* this should be clean, but just in case */ + + *checksum = ((check0 * 0x1000000) + (check1 * 0x10000)); + + return *checksum; +} + + +/* + * aim_oft_buildheader: + * fills a buffer with network-order fh data. + * returns length written; -1 on error. + * dest: buffer to fill -- pre-alloced + * listingfh: fh to get data from + * + * DOES NOT DO BOUNDS CHECKING! + */ + + +faim_internal int aim_oft_buildheader(char *dest,struct aim_fileheader_t *listingfh) +{ + int i, curbyte; + + if(!dest || !listingfh) + return -1; + + curbyte = 0; + for(i = 0; i < 8; i++) + curbyte += aimutil_put8(dest+curbyte, listingfh->bcookie[i]); + curbyte += aimutil_put16(dest+curbyte, listingfh->encrypt); + curbyte += aimutil_put16(dest+curbyte, listingfh->compress); + curbyte += aimutil_put16(dest+curbyte, listingfh->totfiles); + curbyte += aimutil_put16(dest+curbyte, listingfh->filesleft); + curbyte += aimutil_put16(dest+curbyte, listingfh->totparts); + curbyte += aimutil_put16(dest+curbyte, listingfh->partsleft); + curbyte += aimutil_put32(dest+curbyte, listingfh->totsize); + curbyte += aimutil_put32(dest+curbyte, listingfh->size); + curbyte += aimutil_put32(dest+curbyte, listingfh->modtime); + curbyte += aimutil_put32(dest+curbyte, listingfh->checksum); + curbyte += aimutil_put32(dest+curbyte, listingfh->rfrcsum); + curbyte += aimutil_put32(dest+curbyte, listingfh->rfsize); + curbyte += aimutil_put32(dest+curbyte, listingfh->cretime); + curbyte += aimutil_put32(dest+curbyte, listingfh->rfcsum); + curbyte += aimutil_put32(dest+curbyte, listingfh->nrecvd); + curbyte += aimutil_put32(dest+curbyte, listingfh->recvcsum); + + memcpy(dest+curbyte, listingfh->idstring, 32); + curbyte += 32; + + curbyte += aimutil_put8(dest+curbyte, listingfh->flags); + curbyte += aimutil_put8(dest+curbyte, listingfh->lnameoffset); + curbyte += aimutil_put8(dest+curbyte, listingfh->lsizeoffset); + + memcpy(dest+curbyte, listingfh->dummy, 69); + curbyte += 69; + + memcpy(dest+curbyte, listingfh->macfileinfo, 16); + curbyte += 16; + + curbyte += aimutil_put16(dest+curbyte, listingfh->nencode); + curbyte += aimutil_put16(dest+curbyte, listingfh->nlanguage); + + memcpy(dest+curbyte, listingfh->name, 64); /* XXX: Filenames longer than 64B */ + curbyte += 64; + + return curbyte; +} + +/* + * int aim_getfile_send(struct aim_conn_t *conn, FILE *tosend, struct aim_fileheader_t *fh) + * conn is the OFT connection to shove the data down, + * tosend is the FILE * for the file to send + * fh is the filled-in fh value + * returns -1 on error, 1 on success. + */ + +faim_export int aim_getfile_send(struct aim_conn_t *conn, FILE *tosend, struct aim_fileheader_t *fh) +{ + int pos, bufpos, i; + const int bufsize = 4096; + char *buf; + + /* sanity checks */ + if(conn->type != AIM_CONN_TYPE_RENDEZVOUS || conn->subtype != AIM_CONN_SUBTYPE_OFT_GETFILE) { + faimdprintf(1, "getfile_send: conn->type(0x%04x) != RENDEZVOUS or conn->subtype(0x%04x) != GETFILE\n", conn->type, conn->subtype); + return -1; + } + + if(!tosend) { + faimdprintf(1, "getfile_send: file pointer isn't valid\n"); + return -1; + } + + if(!fh) { + faimdprintf(1, "getfile_send: fh isn't valid\n"); + return -1; + } + + /* real code */ + + if(!(buf = (char *)calloc(1, bufsize))) { + perror("faim: getfile_send: calloc:"); + faimdprintf(2, "getfile_send calloc error\n"); + return -1; + } + + pos = 0; + + if( fseek(tosend, 0, SEEK_SET) == -1) { + perror("faim: getfile_send: fseek:"); + faimdprintf(2, "getfile_send fseek error\n"); + } + + faimdprintf(2, "faim: getfile_send: using %i byte blocks\n", bufsize); + + for(pos = 0; pos < fh->size; pos++) { + bufpos = pos % bufsize; + + if(bufpos == 0 && pos > 0) { /* filled our buffer. spit it across the wire */ + if ( (i = write(conn->fd, buf, bufsize)) != bufsize ) { + perror("faim: getfile_send: write1: "); + faimdprintf(1, "faim: getfile_send: whoopsy, didn't write it all...\n"); + free(buf); + return -1; + } + } + if( (buf[bufpos] = fgetc(tosend)) == EOF) { + if(pos != fh->size) { + printf("faim: getfile_send: hrm... apparent early EOF at pos 0x%x of 0x%lx\n", pos, fh->size); + faimdprintf(1, "faim: getfile_send: hrm... apparent early EOF at pos 0x%lx of 0x%lx\n", pos, fh->size); + free(buf); + return -1; + } + } + + + } + + if( (i = write(conn->fd, buf, bufpos+1)) != (bufpos+1)) { + perror("faim: getfile_send: write2: "); + faimdprintf(1, "faim: getfile_send cleanup: whoopsy, didn't write it all...\n"); + free(buf); + return -1; + } + + free(buf); + + fclose(tosend); + return 1; +} + +/* + * int aim_getfile_send_chunk(struct aim_conn_t *conn, FILE *tosend, struct aim_fileheader_t *fh, int pos, int bufsize) + * conn is the OFT connection to shove the data down, + * tosend is the FILE * for the file to send + * fh is the filled-in fh value + * pos is the position to start at (at beginning should be 0, after 5 + * bytes are sent should be 5); -1 for "don't seek" + * bufsize is the size of the chunk to send + * + * returns -1 on error, new pos on success. + * + * + * Notes on usage: + * You don't really have to keep track of pos if you don't want + * to. just always call with -1 for pos, and it'll use the one + * contained within the FILE *. + * + * if (pos + chunksize > fh->size), we only send as much data as we + * can get (ie: up to fh->size. + */ + +faim_export int aim_getfile_send_chunk(struct aim_conn_t *conn, FILE *tosend, struct aim_fileheader_t *fh, int pos, int bufsize) +{ + int bufpos; + char *buf; + + /* sanity checks */ + if(conn->type != AIM_CONN_TYPE_RENDEZVOUS || conn->type != AIM_CONN_SUBTYPE_OFT_GETFILE) { + faimdprintf(1, "faim: getfile_send_chunk: conn->type(0x%04x) != RENDEZVOUS or conn->subtype(0x%04x) != GETFILE\n", conn->type, conn->subtype); + return -1; + } + + if(!tosend) { + faimdprintf(1, "faim: getfile_send_chunk: file pointer isn't valid\n"); + return -1; + } + + if(!fh) { + faimdprintf(1, "faim: getfile_send_chunk: fh isn't valid\n"); + return -1; + } + + /* real code */ + + if(!(buf = (char *)calloc(1, bufsize))) { + perror("faim: getfile_send_chunk: calloc:"); + faimdprintf(2, "faim: getfile_send_chunk calloc error\n"); + return -1; + } + + if(pos != -1) { + if( fseek(tosend, pos, SEEK_SET) == -1) { + perror("faim: getfile_send_chunk: fseek:"); + faimdprintf(2, "faim: getfile_send_chunk fseek error\n"); + } + } + + faimdprintf(2, "faim: getfile_send_chunk: using %i byte blocks\n", bufsize); + + for(bufpos = 0; pos < fh->size; bufpos++, pos++) { + if( (buf[bufpos] = fgetc(tosend)) == EOF) { + if(pos != fh->size) { + faimdprintf(1, "faim: getfile_send_chunk: hrm... apparent early EOF at pos 0x%x of 0x%x\n", pos, fh->size); + free(buf); + return -1; + } + } + } + + if( write(conn->fd, buf, bufpos+1) != (bufpos+1)) { + faimdprintf(1, "faim: getfile_send_chunk cleanup: whoopsy, didn't write it all...\n"); + free(buf); + return -1; + } + + free(buf); + + return (pos + bufpos); +} + +/* + * aim_tx_destroy: + * free's tx_command_t's. if command is locked, doesn't free. + * returns -1 on error (locked struct); 0 on success. + * command is the command to free + */ + +faim_internal int aim_tx_destroy(struct command_tx_struct *command) +{ + if(command->lock) + return -1; + if(command->data) + free(command->data); + free(command); + + return 0; +} + +#if 0 +/* + * aim_getfile_intitiate: + * For those times when we want to open up the directim channel ourselves. + * sess is your session, + * conn is the BOS conn, + * priv is a dummy priv value (we'll let it get filled in later) (if + * you pass a NULL, we alloc one) + * destsn is the SN to connect to. + */ + + +faim_export struct aim_conn_t *aim_getfile_initiate(struct aim_session_t *sess, + struct aim_conn_t *conn, + struct aim_getfile_priv *priv, + char *destsn) +{ + struct command_tx_struct *newpacket; + struct aim_conn_t *newconn; + + struct aim_msgcookie_t *cookie; + + int curbyte, i, listenfd; + short port = 4443; + + struct hostent *hptr; + struct utsname myname; + + char cap[16]; + char d[4]; /* XXX: IPv6. *cough* */ + + /* + * Open our socket + */ + + if( (listenfd = aim_listenestablish(port)) == -1) + return NULL; + + /* + * get our local IP + */ + + if(uname(&myname) < 0) + return NULL; + + if( (hptr = gethostbyname(myname.nodename)) == NULL) + return NULL; + + memcpy(&d, hptr->h_addr_list[0], 4); /* XXX: this probably isn't quite kosher, but it works */ + + aim_putcap(cap, 16, AIM_CAPS_IMIMAGE); + + /* + * create the OSCAR packet + */ + + if (!(newpacket = aim_tx_new(AIM_FRAMETYPE_OSCAR, 0x0002, conn, 10+8+2+1+strlen(destsn)+4+4+0x32))) + return NULL; + + newpacket->lock = 1; /* lock struct */ + + curbyte = 0; + curbyte += aim_putsnac(newpacket->data+curbyte, + 0x0004, 0x0006, 0x0000, sess->snac_nextid); + + /* + * Generate a random message cookie + * This cookie needs to be alphanumeric and NULL-terminated to be TOC-compatible. + */ + for (i=0;i<7;i++) + curbyte += aimutil_put8(newpacket->data+curbyte, 0x30 + ((u_char) random() % 20)); + curbyte += aimutil_put8(newpacket->data+curbyte, 0x00); + + /* + * grab all the data for cookie caching. + */ + cookie = (struct aim_msgcookie_t *)calloc(1, sizeof(struct aim_msgcookie_t)); + + memcpy(cookie->cookie, newpacket->data+curbyte-8, 8); + cookie->type = AIM_COOKIETYPE_OFTIM; + + if(!priv) + priv = (struct aim_directim_priv *)calloc(1, sizeof(struct aim_directim_priv)); + + memcpy(priv->cookie, cookie, 8); + memcpy(priv->sn, destsn, sizeof(priv->sn)); + + cookie->data = priv; + + aim_cachecookie(sess, cookie); /* cache da cookie */ + + /* + * Channel ID + */ + curbyte += aimutil_put16(newpacket->data+curbyte,0x0002); + + /* + * Destination SN (prepended with byte length) + */ + curbyte += aimutil_put8(newpacket->data+curbyte,strlen(destsn)); + curbyte += aimutil_putstr(newpacket->data+curbyte, destsn, strlen(destsn)); + + curbyte += aimutil_put16(newpacket->data+curbyte, 0x0003); + curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000); + + /* + * enTLV start + */ + curbyte += aimutil_put16(newpacket->data+curbyte, 0x0005); + curbyte += aimutil_put16(newpacket->data+curbyte, 0x0032); + + /* + * Flag data / ICBM Parameters? + */ + curbyte += aimutil_put8(newpacket->data+curbyte, 0x00); + curbyte += aimutil_put8(newpacket->data+curbyte, 0x00); + + /* + * Cookie + */ + curbyte += aimutil_putstr(newpacket->data+curbyte, (char *)cookie, 8); + + /* + * Capability String + */ + curbyte += aimutil_putstr(newpacket->data+curbyte, (char *)cap, 0x10); + + /* + * 000a/0002 : 0001 + */ + curbyte += aimutil_put16(newpacket->data+curbyte, 0x000a); + curbyte += aimutil_put16(newpacket->data+curbyte, 0x0002); + curbyte += aimutil_put16(newpacket->data+curbyte, 0x0001); + + /* + * 0003/0004: IP address + */ + + curbyte += aimutil_put16(newpacket->data+curbyte, 0x0003); + curbyte += aimutil_put16(newpacket->data+curbyte, 0x0004); + + for(i = 0; i < 4; i++) + curbyte += aimutil_put8(newpacket->data+curbyte, d[i]); /* already in network byte order */ + + /* + * 0005/0002: Port + */ + + curbyte += aimutil_put16(newpacket->data+curbyte, 0x0005); + curbyte += aimutil_put16(newpacket->data+curbyte, 0x0002); + curbyte += aimutil_put16(newpacket->data+curbyte, port); + + /* + * 000f/0000: umm.. dunno. Zigamorph[1]? + * [1]: see esr's TNHD. + */ + + curbyte += aimutil_put16(newpacket->data+curbyte, 0x000f); + curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000); + + printf("curbyte: 0x%x\n",curbyte); + + newpacket->commandlen = curbyte; + newpacket->lock = 0; + + aim_tx_enqueue(sess, newpacket); + + /* + * allocate and set up our connection + */ + + i = fcntl(listenfd, F_GETFL, 0); + fcntl(listenfd, F_SETFL, i | O_NONBLOCK); + + newconn = aim_newconn(sess, AIM_CONN_TYPE_RENDEZVOUS_OUT, NULL); + if (!newconn) { + perror("aim_newconn"); + aim_conn_kill(sess, &newconn); + return NULL; + } + + newconn->fd = listenfd; + newconn->subtype = AIM_CONN_SUBTYPE_OFT_DIRECTIM; + newconn->priv = priv; + printf("faim: listening (fd = %d, unconnected)\n", newconn->fd); + + /* + * XXX We need some way of closing the listener socket after + * n seconds of no connection. -- mid + */ + +#ifdef USE_SNAC_FOR_IMS + { + struct aim_snac_t snac; + + snac.id = sess->snac_nextid; + snac.family = 0x0004; + snac.type = 0x0006; + snac.flags = 0x0000; + + snac.data = malloc(strlen(destsn)+1); + memcpy(snac.data, destsn, strlen(destsn)+1); + + aim_newsnac(sess, &snac); + + aim_cleansnacs(sess, 60); /* clean out all SNACs over 60sec old */ + } +#endif + + return newconn; +} + +#endif