diff options
Diffstat (limited to 'protocols/oscar/ft.c')
| -rw-r--r-- | protocols/oscar/ft.c | 2005 |
1 files changed, 2005 insertions, 0 deletions
diff --git a/protocols/oscar/ft.c b/protocols/oscar/ft.c new file mode 100644 index 00000000..ddb64e7a --- /dev/null +++ b/protocols/oscar/ft.c @@ -0,0 +1,2005 @@ +/* + * File transfer (OFT) and DirectIM (ODC). + * (OSCAR File Transfer, Oscar Direct Connect(ion?) + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif +#include <aim.h> +#include <glib.h> +#include "ft.h" + +#ifndef _WIN32 +#include <netdb.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <sys/utsname.h> /* for aim_directim_initiate */ +#include <arpa/inet.h> /* for inet_ntoa */ +#endif + +/* TODO: + o look for memory leaks.. there's going to be shitloads, i'm sure. +*/ + +struct aim_directim_intdata { + guint8 cookie[8]; + char sn[MAXSNLEN+1]; + char ip[22]; +}; + +static int listenestablish(guint16 portnum); + +/** + * aim_handlerendconnect - call this to accept OFT connections and set up the required structures + * @sess: the session + * @cur: the conn the incoming connection is on + * + * call this when you get an outstanding read on a conn with subtype + * AIM_CONN_SUBTYPE_RENDEZVOUS_OUT, it will clone the current + * &aim_conn_t and tweak things as appropriate. the new conn and the + * listener conn are both returned to the client in the + * %AIM_CB_FAM_OFT, %AIM_CB_OFT_<CLASS>INITIATE callback. + */ +int aim_handlerendconnect(aim_session_t *sess, aim_conn_t *cur) +{ + int acceptfd = 0; + struct sockaddr cliaddr; + unsigned int clilen = sizeof(cliaddr); + int ret = 0; + aim_conn_t *newconn; + + if ((acceptfd = accept(cur->fd, &cliaddr, &clilen)) == -1) + return 0; /* not an error */ + + if (cliaddr.sa_family != AF_INET) { /* just in case IPv6 really is happening */ + closesocket(acceptfd); + aim_conn_close(cur); + return -1; + } + + if (!(newconn = aim_cloneconn(sess, cur))) { + closesocket(acceptfd); + aim_conn_close(cur); + return -1; + } + + newconn->type = AIM_CONN_TYPE_RENDEZVOUS; + newconn->fd = acceptfd; + + if (newconn->subtype == AIM_CONN_SUBTYPE_OFT_DIRECTIM) { + struct aim_directim_intdata *priv; + aim_rxcallback_t userfunc; + + priv = (struct aim_directim_intdata *)(newconn->internal = cur->internal); + cur->internal = NULL; + + g_snprintf(priv->ip, sizeof(priv->ip), "%s:%u", + inet_ntoa(((struct sockaddr_in *)&cliaddr)->sin_addr), + ntohs(((struct sockaddr_in *)&cliaddr)->sin_port)); + + if ((userfunc = aim_callhandler(sess, newconn, AIM_CB_FAM_OFT, AIM_CB_OFT_DIRECTIMINITIATE))) + ret = userfunc(sess, NULL, newconn, cur); + + } else if (newconn->subtype == AIM_CONN_SUBTYPE_OFT_GETFILE) { +#if 0 + struct aim_filetransfer_priv *priv; + aim_rxcallback_t userfunc; + + + newconn->priv = cur->priv; + cur->priv = NULL; + priv = (struct aim_filetransfer_priv *)newconn->priv; + + g_snprintf(priv->ip, sizeof(priv->ip), "%s:%u", inet_ntoa(((struct sockaddr_in *)&cliaddr)->sin_addr), ntohs(((struct sockaddr_in *)&cliaddr)->sin_port)); + + if ((userfunc = aim_callhandler(sess, newconn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILEINITIATE))) + ret = userfunc(sess, NULL, newconn, cur); +#endif + } else { + do_error_dialog(sess->aux_data, "Got a Connection on a listener that's not Rendezvous Closing conn.", "Gaim"); + aim_conn_close(newconn); + ret = -1; + } + + return ret; +} + +/** + * aim_send_typing - send client-to-client typing notification over established connection + * @sess: session to conn + * @conn: directim connection + * @typing: If true, notify user has started typing; if false, notify user has stopped. + * + * The connection must have been previously established. + */ +int aim_send_typing(aim_session_t *sess, aim_conn_t *conn, int typing) +{ + +struct aim_directim_intdata *intdata = (struct aim_directim_intdata *)conn->internal; + aim_frame_t *fr; + aim_bstream_t hdrbs; /* XXX this should be within aim_frame_t */ + + if (!sess || !conn || (conn->type != AIM_CONN_TYPE_RENDEZVOUS)) + return -EINVAL; + + if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_OFT, 0x01, 0))) + return -ENOMEM; + + memcpy(fr->hdr.oft.magic, "ODC2", 4); + + fr->hdr.oft.hdr2len = 0x44; + + if (!(fr->hdr.oft.hdr2 = g_malloc(fr->hdr.oft.hdr2len))) { + aim_frame_destroy(fr); + return -ENOMEM; + } + memset(fr->hdr.oft.hdr2, 0, fr->hdr.oft.hdr2len); + + aim_bstream_init(&hdrbs, fr->hdr.oft.hdr2, fr->hdr.oft.hdr2len); + + aimbs_put16(&hdrbs, 0x0006); + aimbs_put16(&hdrbs, 0x0000); + aimbs_putraw(&hdrbs, intdata->cookie, 8); + aimbs_put16(&hdrbs, 0x0000); + aimbs_put16(&hdrbs, 0x0000); + aimbs_put16(&hdrbs, 0x0000); + aimbs_put16(&hdrbs, 0x0000); + aimbs_put32(&hdrbs, 0x00000000); + aimbs_put16(&hdrbs, 0x0000); + aimbs_put16(&hdrbs, 0x0000); + aimbs_put16(&hdrbs, 0x0000); + + /* flags -- 0x000e for "started typing", 0x0002 for "stopped typing */ + aimbs_put16(&hdrbs, ( typing ? 0x000e : 0x0002)); + + aimbs_put16(&hdrbs, 0x0000); + aimbs_put16(&hdrbs, 0x0000); + aimbs_putraw(&hdrbs, (guint8 *)sess->sn, strlen(sess->sn)); + + aim_bstream_setpos(&hdrbs, 52); /* bleeehh */ + + aimbs_put8(&hdrbs, 0x00); + aimbs_put16(&hdrbs, 0x0000); + aimbs_put16(&hdrbs, 0x0000); + aimbs_put16(&hdrbs, 0x0000); + aimbs_put16(&hdrbs, 0x0000); + aimbs_put16(&hdrbs, 0x0000); + aimbs_put16(&hdrbs, 0x0000); + aimbs_put16(&hdrbs, 0x0000); + + /* end of hdr2 */ + + aim_tx_enqueue(sess, fr); + + return 0; +} + +/** + * aim_send_im_direct - send IM client-to-client over established connection + * @sess: session to conn + * @conn: directim connection + * @msg: null-terminated string to send. + * len: The length of the message to send, including binary data. + * + * Call this just like you would aim_send_im, to send a directim. You + * _must_ have previously established the directim connection. + */ +int aim_send_im_direct(aim_session_t *sess, aim_conn_t *conn, const char *msg, int len) +{ + struct aim_directim_intdata *intdata = (struct aim_directim_intdata *)conn->internal; + aim_frame_t *fr; + aim_bstream_t hdrbs; /* XXX this should be within aim_frame_t */ + + if (!sess || !conn || !msg || (conn->type != AIM_CONN_TYPE_RENDEZVOUS)) + return -EINVAL; + + if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_OFT, 0x01, len))) + return -ENOMEM; + + memcpy(fr->hdr.oft.magic, "ODC2", 4); + + fr->hdr.oft.hdr2len = 0x44; + + if (!(fr->hdr.oft.hdr2 = g_malloc(fr->hdr.oft.hdr2len))) { + aim_frame_destroy(fr); + return -ENOMEM; + } + memset(fr->hdr.oft.hdr2, 0, fr->hdr.oft.hdr2len); + + aim_bstream_init(&hdrbs, fr->hdr.oft.hdr2, fr->hdr.oft.hdr2len); + + aimbs_put16(&hdrbs, 0x0006); + aimbs_put16(&hdrbs, 0x0000); + aimbs_putraw(&hdrbs, intdata->cookie, 8); + aimbs_put16(&hdrbs, 0x0000); + aimbs_put16(&hdrbs, 0x0000); + aimbs_put16(&hdrbs, 0x0000); + aimbs_put16(&hdrbs, 0x0000); + aimbs_put32(&hdrbs, len); + aimbs_put16(&hdrbs, 0x0000); + aimbs_put16(&hdrbs, 0x0000); + aimbs_put16(&hdrbs, 0x0000); + + /* flags -- 0x000e for "started typing", 0x0002 for "stopped typing, 0x0000 for message */ + aimbs_put16(&hdrbs, 0x0000); + + aimbs_put16(&hdrbs, 0x0000); + aimbs_put16(&hdrbs, 0x0000); + aimbs_putraw(&hdrbs, (guint8 *)sess->sn, strlen(sess->sn)); + + aim_bstream_setpos(&hdrbs, 52); /* bleeehh */ + + aimbs_put8(&hdrbs, 0x00); + aimbs_put16(&hdrbs, 0x0000); + aimbs_put16(&hdrbs, 0x0000); + aimbs_put16(&hdrbs, 0x0000); + aimbs_put16(&hdrbs, 0x0000); + aimbs_put16(&hdrbs, 0x0000); + aimbs_put16(&hdrbs, 0x0000); + aimbs_put16(&hdrbs, 0x0000); + + /* end of hdr2 */ + +#if 0 /* XXX this is how you send buddy icon info... */ + i += aimutil_put16(newpacket->hdr.oft.hdr2+i, 0x0008); + i += aimutil_put16(newpacket->hdr.oft.hdr2+i, 0x000c); + i += aimutil_put16(newpacket->hdr.oft.hdr2+i, 0x0000); + i += aimutil_put16(newpacket->hdr.oft.hdr2+i, 0x1466); + i += aimutil_put16(newpacket->hdr.oft.hdr2+i, 0x0001); + i += aimutil_put16(newpacket->hdr.oft.hdr2+i, 0x2e0f); + i += aimutil_put16(newpacket->hdr.oft.hdr2+i, 0x393e); + i += aimutil_put16(newpacket->hdr.oft.hdr2+i, 0xcac8); +#endif + aimbs_putraw(&fr->data, (guint8 *)msg, len); + + aim_tx_enqueue(sess, fr); + + return 0; +} + +static int getlocalip(guint8 *ip) +{ + struct hostent *hptr; + char localhost[129]; + + /* XXX if available, use getaddrinfo() */ + /* XXX allow client to specify which IP to use for multihomed boxes */ + + if (gethostname(localhost, 128) < 0) + return -1; + + if (!(hptr = gethostbyname(localhost))) + return -1; + + memcpy(ip, hptr->h_addr_list[0], 4); + + return 0; +} + +/** + * aim_directim_intitiate - For those times when we want to open up the directim channel ourselves. + * @sess: your session, + * @conn: the BOS conn, + * @priv: a dummy priv value (we'll let it get filled in later) (if you pass a %NULL, we alloc one) + * @destsn: the SN to connect to. + * + */ +aim_conn_t *aim_directim_initiate(aim_session_t *sess, const char *destsn) +{ + aim_conn_t *newconn; + aim_msgcookie_t *cookie; + struct aim_directim_intdata *priv; + int listenfd; + guint16 port = 4443; + guint8 localip[4]; + guint8 ck[8]; + + if (getlocalip(localip) == -1) + return NULL; + + if ((listenfd = listenestablish(port)) == -1) + return NULL; + + aim_request_directim(sess, destsn, localip, port, ck); + + cookie = (aim_msgcookie_t *)g_new0(aim_msgcookie_t,1); + memcpy(cookie->cookie, ck, 8); + cookie->type = AIM_COOKIETYPE_OFTIM; + + /* this one is for the cookie */ + priv = (struct aim_directim_intdata *)g_new0(struct aim_directim_intdata,1); + + memcpy(priv->cookie, ck, 8); + strncpy(priv->sn, destsn, sizeof(priv->sn)); + cookie->data = priv; + aim_cachecookie(sess, cookie); + + /* XXX switch to aim_cloneconn()? */ + if (!(newconn = aim_newconn(sess, AIM_CONN_TYPE_RENDEZVOUS_OUT, NULL))) { + closesocket(listenfd); + return NULL; + } + + /* this one is for the conn */ + priv = (struct aim_directim_intdata *)g_new0(struct aim_directim_intdata, 1); + + memcpy(priv->cookie, ck, 8); + strncpy(priv->sn, destsn, sizeof(priv->sn)); + + newconn->fd = listenfd; + newconn->subtype = AIM_CONN_SUBTYPE_OFT_DIRECTIM; + newconn->internal = priv; + newconn->lastactivity = time(NULL); + + return newconn; +} + +/** + * aim_sendfile_intitiate - For those times when we want to send the file ourselves. + * @sess: your session, + * @conn: the BOS conn, + * @destsn: the SN to connect to. + * @filename: the name of the files you want to send + * + */ +aim_conn_t *aim_sendfile_initiate(aim_session_t *sess, const char *destsn, const char *filename, guint16 numfiles, guint32 totsize) +{ + aim_conn_t *newconn; + aim_msgcookie_t *cookie; + struct aim_directim_intdata *priv; + int listenfd; + guint16 port = 4443; + guint8 localip[4]; + guint8 ck[8]; + + if (getlocalip(localip) == -1) + return NULL; + + if ((listenfd = listenestablish(port)) == -1) + return NULL; + + aim_request_sendfile(sess, destsn, filename, numfiles, totsize, localip, port, ck); + + cookie = (aim_msgcookie_t *)g_new0(aim_msgcookie_t,1); + memcpy(cookie->cookie, ck, 8); + cookie->type = AIM_COOKIETYPE_OFTIM; + + /* this one is for the cookie */ + priv = (struct aim_directim_intdata *)g_new0(struct aim_directim_intdata,1); + + memcpy(priv->cookie, ck, 8); + strncpy(priv->sn, destsn, sizeof(priv->sn)); + cookie->data = priv; + aim_cachecookie(sess, cookie); + + /* XXX switch to aim_cloneconn()? */ + if (!(newconn = aim_newconn(sess, AIM_CONN_TYPE_RENDEZVOUS_OUT, NULL))) { + closesocket(listenfd); + return NULL; + } + + /* this one is for the conn */ + priv = (struct aim_directim_intdata *)g_new0(struct aim_directim_intdata,1); + + memcpy(priv->cookie, ck, 8); + strncpy(priv->sn, destsn, sizeof(priv->sn)); + + newconn->fd = listenfd; + newconn->subtype = AIM_CONN_SUBTYPE_OFT_SENDFILE; + newconn->internal = priv; + newconn->lastactivity = time(NULL); + + return newconn; +} + +#if 0 +/** + * unsigned int aim_oft_listener_clean - close up old listeners + * @sess: session to clean up in + * @age: maximum age in seconds + * + * returns number closed, -1 on error. + */ +unsigned int aim_oft_listener_clean(struct aim_session_t *sess, time_t age) +{ + struct aim_conn_t *cur; + time_t now; + unsigned int hit = 0; + + if (!sess) + return -1; + now = time(NULL); + faim_mutex_lock(&sess->connlistlock); + for(cur = sess->connlist;cur; cur = cur->next) + if (cur->type == AIM_CONN_TYPE_RENDEZVOUS_OUT) { + faim_mutex_lock(&cur->active); + if (cur->lastactivity < (now - age) ) { + faim_mutex_unlock(&cur->active); + aim_conn_close(cur); + hit++; + } else + faim_mutex_unlock(&cur->active); + } + faim_mutex_unlock(&sess->connlistlock); + return hit; +} +#endif + +const char *aim_directim_getsn(aim_conn_t *conn) +{ + struct aim_directim_intdata *intdata; + + if (!conn) + return NULL; + + if ((conn->type != AIM_CONN_TYPE_RENDEZVOUS) || + (conn->subtype != AIM_CONN_SUBTYPE_OFT_DIRECTIM)) + return NULL; + + if (!conn->internal) + return NULL; + + intdata = (struct aim_directim_intdata *)conn->internal; + + return intdata->sn; +} + +/** + * aim_directim_connect - connect to buddy for directim + * @sess: the session to append the conn to, + * @sn: the SN we're connecting to + * @addr: address to connect to + * + * This is a wrapper for aim_newconn. + * + * If addr is NULL, the socket is not created, but the connection is + * allocated and setup to connect. + * + */ +aim_conn_t *aim_directim_connect(aim_session_t *sess, const char *sn, const char *addr, const guint8 *cookie) +{ + aim_conn_t *newconn; + struct aim_directim_intdata *intdata; + + if (!sess || !sn) + return NULL; + + if (!(intdata = g_new0(struct aim_directim_intdata, 1))) + return NULL; + + memcpy(intdata->cookie, cookie, 8); + strncpy(intdata->sn, sn, sizeof(intdata->sn)); + if (addr) + strncpy(intdata->ip, addr, sizeof(intdata->ip)); + + /* XXX verify that non-blocking connects actually work */ + if (!(newconn = aim_newconn(sess, AIM_CONN_TYPE_RENDEZVOUS, addr))) { + g_free(intdata); + return NULL; + } + + if (!newconn) { + g_free(intdata); + return newconn; + } + + newconn->subtype = AIM_CONN_SUBTYPE_OFT_DIRECTIM; + newconn->internal = intdata; + + return newconn; +} + +/** + * aim_directim_getconn - find a directim conn for buddy name + * @sess: your session, + * @name: the name to get, + * + * returns conn for directim with name, %NULL if none found. + * + */ +aim_conn_t *aim_directim_getconn(aim_session_t *sess, const char *name) +{ + aim_conn_t *cur; + + if (!sess || !name || !strlen(name)) + return NULL; + + for (cur = sess->connlist; cur; cur = cur->next) { + struct aim_directim_intdata *intdata; + + if ((cur->type != AIM_CONN_TYPE_RENDEZVOUS) || (cur->subtype != AIM_CONN_SUBTYPE_OFT_DIRECTIM)) + continue; + + intdata = cur->internal; + + if (aim_sncmp(intdata->sn, name) == 0) + break; + } + + return cur; +} + +/** + * aim_accepttransfer - accept a file transfer request + * @sess: the session, + * @conn: the BOS conn for the CAP reply + * @sn: the screenname to send it to, + * @cookie: the cookie used + * @ip: the ip to connect to + * @listingfiles: number of files to share + * @listingtotsize: total size of shared files + * @listingsize: length of the listing file(buffer) + * @listingchecksum: checksum of the listing + * @rendid: capability type (%AIM_CAPS_GETFILE or %AIM_CAPS_SENDFILE) + * + * Returns new connection or %NULL on error. + * + * XXX this should take a struct. + */ +aim_conn_t *aim_accepttransfer(aim_session_t *sess, + aim_conn_t *conn, + const char *sn, const guint8 *cookie, + const guint8 *ip, + guint16 listingfiles, + guint16 listingtotsize, + guint16 listingsize, + guint32 listingchecksum, + guint16 rendid) +{ + return NULL; +#if 0 + struct command_tx_struct *newpacket, *newoft; + struct aim_conn_t *newconn; + struct aim_fileheader_t *fh; + struct aim_filetransfer_priv *priv; + struct aim_msgcookie_t *cachedcook; + int curbyte, i; + + if (!sess || !conn || !sn || !cookie || !ip) { + return NULL; + } + + newconn = aim_newconn(sess, AIM_CONN_TYPE_RENDEZVOUS, ip); + + if (!newconn || (newconn->fd == -1)) { + perror("aim_newconn"); + faimdprintf(sess, 2, "could not connect to %s (fd: %i)\n", ip, newconn?newconn->fd:0); + return newconn; + } else { + priv = (struct aim_filetransfer_priv *)g_new0(struct aim_filetransfer_priv,1); + + memcpy(priv->cookie, cookie, 8); + priv->state = 0; + strncpy(priv->sn, sn, MAXSNLEN); + strncpy(priv->ip, ip, sizeof(priv->ip)); + newconn->priv = (void *)priv; + + faimdprintf(sess, 2, "faim: connected to peer (fd = %d)\n", newconn->fd); + } + + if (rendid == AIM_CAPS_GETFILE) { + newconn->subtype = AIM_CONN_SUBTYPE_OFT_GETFILE; + + faimdprintf(sess, 2, "faim: getfile request accept\n"); + + if (!(newoft = aim_tx_new(sess, newconn, AIM_FRAMETYPE_OFT, 0x1108, 0))) { + faimdprintf(sess, 2, "faim: aim_accepttransfer: tx_new OFT failed\n"); + /* XXX: conn leak here */ + return NULL; + } + + newoft->lock = 1; + memcpy(newoft->hdr.oft.magic, "OFT2", 4); + newoft->hdr.oft.hdr2len = 0x100 - 8; + + if (!(fh = (struct aim_fileheader_t*)g_new0(struct aim_fileheader_t,1))) { + /* XXX: conn leak here */ + perror("calloc"); + return NULL; + } + + fh->encrypt = 0x0000; + fh->compress = 0x0000; + fh->totfiles = listingfiles; + fh->filesleft = listingfiles; /* is this right -- total parts and parts left?*/ + fh->totparts = 0x0001; + fh->partsleft = 0x0001; + fh->totsize = listingtotsize; + fh->size = listingsize; /* ls -l listing.txt */ + fh->modtime = (int)time(NULL); /* we'll go with current time for now */ + fh->checksum = listingchecksum; + fh->rfcsum = 0x00000000; + fh->rfsize = 0x00000000; + fh->cretime = 0x00000000; + fh->rfcsum = 0x00000000; + fh->nrecvd = 0x00000000; + fh->recvcsum = 0x00000000; + memset(fh->idstring, 0, sizeof(fh->idstring)); + memcpy(fh->idstring, "OFT_Windows ICBMFT V1.1 32", sizeof(fh->idstring)); + fh->flags = 0x02; + fh->lnameoffset = 0x1a; + fh->lsizeoffset = 0x10; + memset(fh->dummy, 0, sizeof(fh->dummy)); + memset(fh->macfileinfo, 0, sizeof(fh->macfileinfo)); + + /* we need to figure out these encodings for filenames */ + fh->nencode = 0x0000; + fh->nlanguage = 0x0000; + memset(fh->name, 0, sizeof(fh->name)); + memcpy(fh->name, "listing.txt", sizeof(fh->name)); + + if (!(newoft->hdr.oft.hdr2 = (char *)calloc(1,newoft->hdr.oft.hdr2len))) { + newoft->lock = 0; + aim_frame_destroy(newoft); + /* XXX: conn leak */ + perror("calloc (1)"); + return NULL; + } + + memcpy(fh->bcookie, cookie, 8); + + if (!(aim_oft_buildheader((unsigned char *)newoft->hdr.oft.hdr2, fh))) + faimdprintf(sess, 1, "eek, bh fail!\n"); + + newoft->lock = 0; + aim_tx_enqueue(sess, newoft); + + if (!(cachedcook = (struct aim_msgcookie_t *)calloc(1, sizeof(struct aim_msgcookie_t)))) { + faimdprintf(sess, 1, "faim: accepttransfer: couldn't calloc cachedcook. yeep!\n"); + /* XXX: more cleanup, conn leak */ + perror("calloc (2)"); + return NULL; + } + + memcpy(&(priv->fh), fh, sizeof(struct aim_fileheader_t)); + memcpy(cachedcook->cookie, cookie, 8); + + cachedcook->type = AIM_COOKIETYPE_OFTGET; + cachedcook->data = (void *)priv; + + if (aim_cachecookie(sess, cachedcook) == -1) + faimdprintf(sess, 1, "faim: ERROR caching message cookie\n"); + + g_free(fh); + + /* OSCAR CAP accept packet */ + + if (!(newpacket = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 10+8+2+1+strlen(sn)+4+2+8+16))) { + return NULL; + } + } else { + return NULL; + } + + 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); + + return newconn; +#endif +} + +/** + * aim_getlisting(FILE *file) -- get an aim_fileheader_t for a given FILE* + * @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. + * + */ +struct aim_fileheader_t *aim_getlisting(aim_session_t *sess, FILE *file) +{ + return NULL; +#if 0 + 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(sess, 2, "linebuf calloc failed\n"); + return NULL; + } + + if (fseek(file, 0, SEEK_END) == -1) { /* use this for sanity check */ + perror("getlisting END1 fseek:"); + faimdprintf(sess, 2, "getlising fseek END1 error\n"); + } + + if ((size = ftell(file)) == -1) { + perror("getlisting END1 getpos:"); + faimdprintf(sess, 2, "getlising getpos END1 error\n"); + } + + if (fseek(file, 0, SEEK_SET) != 0) { + perror("getlesting fseek(SET):"); + faimdprintf(sess, 2, "faim: getlisting: couldn't seek to beginning of listing file\n"); + } + + memset(linebuf, 0, linelength); + + size = 0; + + while(fgets(linebuf, linelength, file)) { + totfiles++; + memset(sizebuf, 0, 9); + + size += strlen(linebuf); + + if (strlen(linebuf) < 23) { + faimdprintf(sess, 2, "line \"%s\" too short. skipping\n", linebuf); + continue; + } + if (linebuf[strlen(linebuf)-1] != '\n') { + faimdprintf(sess, 2, "faim: OFT: getlisting -- hit EOF or line too long!\n"); + } + + memcpy(sizebuf, linebuf+17, 8); + + totsize += strtol(sizebuf, NULL, 10); + memset(linebuf, 0, linelength); + } + + if (fseek(file, 0, SEEK_SET) == -1) { + perror("getlisting END2 fseek:"); + faimdprintf(sess, 2, "getlising fseek END2 error\n"); + } + + g_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; + + fh->encrypt = 0x0000; + fh->compress = 0x0000; + fh->totfiles = totfiles; + fh->filesleft = totfiles; /* is this right ?*/ + fh->totparts = 0x0001; + fh->partsleft = 0x0001; + 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; + fh->rfcsum = 0x00000000; + fh->nrecvd = 0x00000000; + fh->recvcsum = 0x00000000; + + /* 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, sizeof(fh->dummy)); */ + memset(fh->macfileinfo, 0, sizeof(fh->macfileinfo)); + + fh->nencode = 0x0000; /* we need to figure out these encodings for filenames */ + fh->nlanguage = 0x0000; + + /* 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)); + + faimdprintf(sess, 2, "faim: OFT: listing fh name %s / %s\n", fh->name, (fh->name+(strlen(fh->name)))); + return fh; +#endif +} + +/** + * aim_listenestablish - create a listening socket on a port. + * @portnum: the port number to bind to. + * + * you need to call accept() when it's connected. returns your fd + * + * XXX: give the client author the responsibility of setting up a + * listener, then we no longer have a libfaim problem with broken + * solaris *innocent smile* -jbm + */ +static int listenestablish(guint16 portnum) +{ +#if HAVE_GETADDRINFO + int listenfd; + const int on = 1; + struct addrinfo hints, *res, *ressave; + char serv[5]; + + g_snprintf(serv, sizeof(serv), "%d", portnum); + memset(&hints, 0, sizeof(struct addrinfo)); + hints.ai_flags = AI_PASSIVE; + hints.ai_family = AF_UNSPEC; + hints.ai_socktype = SOCK_STREAM; + if (getaddrinfo(NULL /*any IP*/, serv, &hints, &res) != 0) { + perror("getaddrinfo"); + return -1; + } + ressave = res; + do { + listenfd = socket(res->ai_family, res->ai_socktype, res->ai_protocol); + if (listenfd < 0) + continue; + setsockopt(listenfd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)); + if (bind(listenfd, res->ai_addr, res->ai_addrlen) == 0) + break; + /* success */ + closesocket(listenfd); + } while ( (res = res->ai_next) ); + + if (!res) + return -1; + + if (listen(listenfd, 1024)!=0) { + perror("listen"); + return -1; + } + + freeaddrinfo(ressave); + return listenfd; +#else + int listenfd; + const int on = 1; + struct sockaddr_in sockin; + + if ((listenfd = socket(AF_INET, SOCK_STREAM, 0)) < 0) { + perror("socket(listenfd)"); + return -1; + } + + if (setsockopt(listenfd, SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) != 0) { + perror("setsockopt(listenfd)"); + closesocket(listenfd); + return -1; + } + + memset(&sockin, 0, sizeof(struct sockaddr_in)); + sockin.sin_family = AF_INET; + sockin.sin_port = htons(portnum); + + if (bind(listenfd, (struct sockaddr *)&sockin, sizeof(struct sockaddr_in)) != 0) { + perror("bind(listenfd)"); + closesocket(listenfd); + return -1; + } + if (listen(listenfd, 4) != 0) { + perror("listen(listenfd)"); + closesocket(listenfd); + return -1; + } + return listenfd; +#endif +} + +static int getcommand_getfile(aim_session_t *sess, aim_conn_t *conn) +{ +#if 0 + struct aim_filetransfer_priv *ft; + aim_rxcallback_t userfunc; + + ft = conn->priv; + if (ft->state == 2) { + /* waiting on listing data */ + int ret = 0; + char *listing; + struct command_tx_struct *newoft; + + if (!(listing = g_malloc(ft->fh.size))) + return -1; + + ft->state = 0; + if (aim_recv(conn->fd, listing, ft->fh.size) != ft->fh.size) + faimdprintf(sess, 2, "OFT get: file %s was short. (0x%lx)\n", ft->fh.name, ft->fh.size); + + if (!(newoft = aim_tx_new(sess, conn, AIM_FRAMETYPE_OFT, 0x120b, 0))) { + faimdprintf(sess, 2, "faim: aim_get_command_rendezvous: getfile listing: tx_new OFT failed\n"); + faim_mutex_unlock(&conn->active); + g_free(listing); + aim_conn_close(conn); + return -1; + } + + memcpy(newoft->hdr.oft.magic, "OFT2", 4); + newoft->hdr.oft.hdr2len = 0x100 - 8; + + /* Protocol BS - set nrecvd to size of listing, recvcsum to listing checksum, flags to 0 */ + + ft->fh.nrecvd = ft->fh.size; + ft->fh.recvcsum = ft->fh.checksum; + ft->fh.flags = 0; + + if (!(newoft->hdr.oft.hdr2 = (char *)calloc(1,newoft->hdr.oft.hdr2len))) { + aim_frame_destroy(newoft); + g_free(listing); + return -1; + } + + if (!(aim_oft_buildheader((unsigned char *)newoft->hdr.oft.hdr2, &(ft->fh)))) + faimdprintf(sess, 2, "eek! bh fail listing\n"); + + /* send the 120b */ + aim_tx_enqueue(sess, newoft); + if ( (userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILELISTING)) ) + ret = userfunc(sess, NULL, conn, ft, listing); + + g_free(listing); + return ret; + } + + if (ft->state == 3) { + /* waiting on file data */ + if ( (userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILERECEIVE)) ) + return userfunc(sess, NULL, conn, ft); + return 0; + } + + if (ft->state == 4) { + if( (userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILESTATE4)) ) + return userfunc(sess, NULL, conn); + aim_conn_close(conn); + return 0; + } + + return 0; +#else + return -1; +#endif +} + +static void connclose_sendfile(aim_session_t *sess, aim_conn_t *conn) +{ + aim_msgcookie_t *cook; + struct aim_filetransfer_priv *priv = (struct aim_filetransfer_priv *)conn->priv; + + cook = aim_uncachecookie(sess, (guint8 *)priv->cookie, AIM_COOKIETYPE_OFTSEND); + aim_cookie_free(sess, cook); + + return; +} + +static void connkill_sendfile(aim_session_t *sess, aim_conn_t *conn) +{ + + g_free(conn->internal); + + return; +} + +static void connclose_getfile(aim_session_t *sess, aim_conn_t *conn) +{ + aim_msgcookie_t *cook; + struct aim_filetransfer_priv *priv = (struct aim_filetransfer_priv *)conn->priv; + + cook = aim_uncachecookie(sess, (guint8 *)priv->cookie, AIM_COOKIETYPE_OFTGET); + aim_cookie_free(sess, cook); + + return; +} + +static void connkill_getfile(aim_session_t *sess, aim_conn_t *conn) +{ + + g_free(conn->internal); + + return; +} + +static void connclose_directim(aim_session_t *sess, aim_conn_t *conn) +{ + struct aim_directim_intdata *intdata = (struct aim_directim_intdata *)conn->internal; + aim_msgcookie_t *cook; + + cook = aim_uncachecookie(sess, intdata->cookie, AIM_COOKIETYPE_OFTIM); + aim_cookie_free(sess, cook); + + return; +} + +static void connkill_directim(aim_session_t *sess, aim_conn_t *conn) +{ + + g_free(conn->internal); + + return; +} + +void aim_conn_close_rend(aim_session_t *sess, aim_conn_t *conn) +{ + + if (conn->type != AIM_CONN_TYPE_RENDEZVOUS) + return; + + if (conn->subtype == AIM_CONN_SUBTYPE_OFT_SENDFILE) + connclose_sendfile(sess, conn); + else if (conn->subtype == AIM_CONN_SUBTYPE_OFT_GETFILE) + connclose_getfile(sess, conn); + else if (conn->subtype == AIM_CONN_SUBTYPE_OFT_DIRECTIM) + connclose_directim(sess, conn); + + return; +} + +void aim_conn_kill_rend(aim_session_t *sess, aim_conn_t *conn) +{ + + if (conn->type != AIM_CONN_TYPE_RENDEZVOUS) + return; + + if (conn->subtype == AIM_CONN_SUBTYPE_OFT_SENDFILE) + connkill_sendfile(sess, conn); + else if (conn->subtype == AIM_CONN_SUBTYPE_OFT_GETFILE) + connkill_getfile(sess, conn); + else if (conn->subtype == AIM_CONN_SUBTYPE_OFT_DIRECTIM) + connkill_directim(sess, conn); + + return; +} + +static int handlehdr_directim(aim_session_t *sess, aim_conn_t *conn, guint8 *hdr) +{ + aim_frame_t fr; + aim_rxcallback_t userfunc; + guint32 payloadlength; + guint16 flags; + char *snptr = NULL; + + fr.conn = conn; + + payloadlength = aimutil_get32(hdr+22); + flags = aimutil_get16(hdr+32); + snptr = (char *)hdr+38; + + if (flags == 0x000e) { + int ret = 0; + + if ((userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_DIRECTIMTYPING))) + ret = userfunc(sess, &fr, snptr, 1); + + return ret; + + } else if (flags == 0x0002) { + int ret = 0; + + if ((userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_DIRECTIMTYPING))) + ret = userfunc(sess, &fr, snptr, 0); + + return ret; + + } else if ((flags == 0x0000) && payloadlength) { + char *msg, *msg2; + int ret = 0; + int recvd = 0; + int i; + + if (!(msg = g_malloc(payloadlength+1))) + return -1; + memset(msg, 0, payloadlength+1); + msg2 = msg; + + while (payloadlength - recvd) { + if (payloadlength - recvd >= 1024) + i = aim_recv(conn->fd, msg2, 1024); + else + i = aim_recv(conn->fd, msg2, payloadlength - recvd); + if (i <= 0) { + g_free(msg); + return -1; + } + recvd = recvd + i; + msg2 = msg2 + i; + if ((userfunc=aim_callhandler(sess, conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_IMAGETRANSFER))) + userfunc(sess, &fr, snptr, (double)recvd / payloadlength); + } + + if ( (userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_DIRECTIMINCOMING)) ) + ret = userfunc(sess, &fr, snptr, msg, payloadlength); + + g_free(msg); + + return ret; + } + + return 0; +} + +static int handlehdr_getfile_listing(aim_session_t *sess, aim_conn_t *conn, guint8 *hdr) +{ +#if 0 + struct aim_filetransfer_priv *ft; + struct aim_fileheader_t *fh; + struct aim_msgcookie_t *cook; + struct command_tx_struct *newoft; + aim_rxcallback_t userfunc; + + faimdprintf(sess, 2,"faim: rend: fileget 0x1108\n"); + fh = aim_oft_getfh(hdr); + + faim_mutex_unlock(&conn->active); + + if (!(cook = aim_checkcookie(sess, fh->bcookie, AIM_COOKIETYPE_OFTGET))) { + g_free(fh); + return -1; + } + + ft = cook->data; + + /* we're waaaaiiiting.. for listing.txt */ + ft->state = 2; + + memcpy(&(ft->fh), fh, sizeof(struct aim_fileheader_t)); + g_free(fh); + + if(aim_cachecookie(sess, cook) == -1) { + faimdprintf(sess, 1, "error caching cookie\n"); + return -1; + } + + if (!(newoft = aim_tx_new(sess, conn, AIM_FRAMETYPE_OFT, 0x1209, 0))) { + aim_conn_close(conn); + return -1; + } + + memcpy(newoft->hdr.oft.magic, "OFT2", 4); + newoft->hdr.oft.hdr2len = 0x100 - 8; + + if (!(newoft->hdr.oft.hdr2 = (char *)calloc(1,newoft->hdr.oft.hdr2len))) { + newoft->lock = 0; + aim_frame_destroy(newoft); + return -1; + } + + if (!(aim_oft_buildheader((unsigned char *)newoft->hdr.oft.hdr2, &(ft->fh)))) { + newoft->lock = 0; + aim_frame_destroy(newoft); + return -1; + } + + newoft->lock = 0; + aim_tx_enqueue(sess, newoft); +#endif + return -1; +} + +static int handlehdr_getfile_listing2(aim_session_t *sess, aim_conn_t *conn, guint8 *hdr) +{ +#if 0 + struct aim_filetransfer_priv *ft; + struct aim_fileheader_t *fh; + struct aim_msgcookie_t *cook; + int ret = 0; + aim_rxcallback_t userfunc; + + fh = aim_oft_getfh(hdr); + + if (!(cook = aim_checkcookie(sess, fh->bcookie, AIM_COOKIETYPE_OFTGET))) + faimdprintf(sess, 2, "shit, no cookie in 0x1209. (%i/%s)going to crash..\n", AIM_COOKIETYPE_OFTGET, fh->bcookie); + + ft = cook->data; + + if (ft->fh.size != fh->size) + faimdprintf(sess, 2, "hrm. ft->fh.size (%ld) != fh->size (%ld). um. using ft->fh.size\n", ft->fh.size, fh->size); + + if ( (userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILELISTINGREQ))) + ret = userfunc(sess, NULL, conn, fh); + + faimdprintf(sess, 2, "faim: get_command_rendezvous: hit end of 1209\n"); + + g_free(fh); + + return ret; +#else + return -1; +#endif +} + +static int handlehdr_getfile_listing3(aim_session_t *sess, aim_conn_t *conn, guint8 *hdr) +{ +#if 0 + struct aim_filetransfer_priv *ft; + struct aim_msgcookie_t *cook; + struct aim_fileheader_t *fh; + aim_rxcallback_t userfunc; + + fh = aim_oft_getfh(hdr); + + if (!(cook = aim_checkcookie(sess, fh->bcookie, AIM_COOKIETYPE_OFTGET))) { + g_free(fh); + return -1; + } + + g_free(fh); + + ft = cook->data; + + if (aim_cachecookie(sess, cook) == -1) + return -1; + + if ((userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILELISTINGRXCONFIRM))) + return userfunc(sess, NULL, conn); +#endif + return -1; +} + +static int handlehdr_getfile_request(aim_session_t *sess, aim_conn_t *conn, guint8 *hdr) +{ +#if 0 + struct aim_filetransfer_priv *ft; + struct aim_msgcookie_t *cook; + struct aim_fileheader_t *fh; + struct command_tx_struct *newoft; + int i = 0; + aim_rxcallback_t userfunc; + + fh = aim_oft_getfh(hdr); + + if (!(cook = aim_checkcookie(sess, fh->bcookie, AIM_COOKIETYPE_OFTGET))) { + g_free(fh); + return -1; + } + + ft = cook->data; + memcpy(&(ft->fh), fh, sizeof(struct aim_fileheader_t)); + g_free(fh); + + aim_cachecookie(sess, cook); + + faimdprintf(sess, 2, "faim: fileget: %s seems to want %s\n", ft->sn, ft->fh.name); + + if ( (userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILEFILEREQ)) ) + i = userfunc(sess, NULL, conn, &(ft->fh), cook->cookie); + + if (i < 0) + return i; + + if (!(newoft = aim_tx_new(sess, conn, AIM_FRAMETYPE_OFT, 0x0101, 0))) { + faimdprintf(sess, 2, "faim: send_final_transfer: tx_new OFT failed\n"); + return -1; + } + + newoft->lock = 1; + memcpy(newoft->hdr.oft.magic, "OFT2", 4); + newoft->hdr.oft.hdr2len = 0x100 - 8; + + if (!(newoft->hdr.oft.hdr2 = calloc(1,newoft->hdr.oft.hdr2len))) { + aim_frame_destroy(newoft); + return -1; + } + + /* protocol BS: nrecvd, recvcsum to 0, flags to 0x20. */ + ft->fh.nrecvd = 0; + ft->fh.recvcsum = 0; + ft->fh.flags = 0x20; + + aim_oft_buildheader((unsigned char *)newoft->hdr.oft.hdr2, &(ft->fh)); + + newoft->lock = 0; + aim_tx_enqueue(sess, newoft); + + faimdprintf(sess, 2, "faim: OFT: OFT file header enqueued.\n"); + + return i; +#else + return -1; +#endif +} + +static int handlehdr_getfile_sending(aim_session_t *sess, aim_conn_t *conn, guint8 *hdr) +{ +#if 0 + struct aim_fileheader_t *fh; + struct aim_filetransfer_priv *ft; + struct aim_msgcookie_t *cook; + struct command_tx_struct *newoft; + aim_rxcallback_t userfunc; + + fh = aim_oft_getfh(hdr); + + if (!(cook = aim_checkcookie(sess, fh->bcookie, AIM_COOKIETYPE_OFTGET))) { + g_free(fh); + return -1; + } + + g_free(fh); + + ft = cook->data; + + ft->state = 3; + + if (aim_cachecookie(sess, cook) == -1) + return -1; + + faimdprintf(sess, 2, "faim: fileget: %s seems to want to send %s\n", ft->sn, ft->fh.name); + + if (!(newoft = aim_tx_new(sess, conn, AIM_FRAMETYPE_OFT, 0x0202, 0))) { + faimdprintf(sess, 2, "faim: send_final_transfer: tx_new OFT failed\n"); + return -1; + } + + newoft->lock = 1; + memcpy(newoft->hdr.oft.magic, "OFT2", 4); + + newoft->hdr.oft.hdr2len = 0x100 - 8; + + if (!(newoft->hdr.oft.hdr2 = calloc(1,newoft->hdr.oft.hdr2len))) { + aim_frame_destroy(newoft); + return -1; + } + + aim_oft_buildheader((unsigned char *)newoft->hdr.oft.hdr2, &(ft->fh)); + + newoft->lock = 0; + aim_tx_enqueue(sess, newoft); + + faimdprintf(sess, 2, "faim: OFT: OFT 0x0202 enqueued.\n"); + + if ( (userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILEFILEREQ)) == NULL) + return 1; +#else + return -1; +#endif +} + +static int handlehdr_getfile_recv(aim_session_t *sess, aim_conn_t *conn, guint8 *hdr) +{ +#if 0 + struct aim_fileheader_t *fh; + struct aim_filetransfer_priv *ft; + struct aim_msgcookie_t *cook; + int ret = 1; + aim_rxcallback_t userfunc; + + fh = aim_oft_getfh(hdr); + + if (!(cook = aim_checkcookie(sess, fh->bcookie, AIM_COOKIETYPE_OFTGET))) { + g_free(fh); + return -1; + } + + ft = cook->data; + + faimdprintf(sess, 2, "faim: get_rend: looks like we're ready to send data.(oft 0x0202)\n"); + + if ( (userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILEFILESEND)) ) + ret = userfunc(sess, NULL, conn, fh); + + g_free(fh); + + return ret; +#else + return -1; +#endif +} + +static int handlehdr_getfile_finish(aim_session_t *sess, aim_conn_t *conn, guint8 *hdr) +{ +#if 0 + struct aim_fileheader_t *fh; + aim_rxcallback_t userfunc; + + fh = aim_oft_getfh(hdr); + + faimdprintf(sess, 2, "faim: get_rend: looks like we're done with a transfer (oft 0x0204)\n"); + + if ( (userfunc = aim_callhandler(sess, conn, AIM_CB_FAM_OFT, AIM_CB_OFT_GETFILECOMPLETE)) ) + userfunc(sess, NULL, conn, fh); + + g_free(fh); +#endif + + return -1; +} + +/** + * aim_get_command_rendezvous - OFT equivalent of aim_get_command + * @sess: session to work on + * @conn: conn to pull data from + * + * this reads and handles data from conn->fd. currently a little rough + * around the edges + */ +int aim_get_command_rendezvous(aim_session_t *sess, aim_conn_t *conn) +{ + guint8 hdrbuf1[6]; + guint8 *hdr = NULL; + int hdrlen, hdrtype; + int ret = -1; + + if (!sess || !conn) + return -1; + + memset(hdrbuf1, 0, sizeof(hdrbuf1)); + + /* I guess? I didn't understand any of that mess... */ + if (conn->subtype == AIM_CONN_SUBTYPE_OFT_GETFILE) + return getcommand_getfile(sess, conn); + + /* XXX fix all the error cases here */ + if (aim_recv(conn->fd, hdrbuf1, 6) < 6) { + + do_error_dialog(sess->aux_data, "read error", "Gaim"); + + aim_conn_close(conn); + + return -1; + } + + hdrlen = aimutil_get16(hdrbuf1+4); + hdrlen -= 6; + + hdr = g_malloc(hdrlen); + + if (aim_recv(conn->fd, hdr, hdrlen) < hdrlen) { + do_error_dialog(sess->aux_data, "read error", "Gaim"); + g_free(hdr); + aim_conn_close(conn); + return -1; + } + + hdrtype = aimutil_get16(hdr); + + if (hdrtype == 0x0001) + ret = handlehdr_directim(sess, conn, hdr); + else if (hdrtype == 0x1108) /* getfile listing.txt incoming tx->rx */ + ret = handlehdr_getfile_listing(sess, conn, hdr); + else if (hdrtype == 0x1209) /* get file listing ack rx->tx */ + ret = handlehdr_getfile_listing2(sess, conn, hdr); + else if (hdrtype == 0x120b) /* get file listing rx confirm */ + ret = handlehdr_getfile_listing3(sess, conn, hdr); + else if (hdrtype == 0x120c) /* getfile request */ + ret = handlehdr_getfile_request(sess, conn, hdr); + else if (hdrtype == 0x0101) /* getfile sending data */ + ret = handlehdr_getfile_sending(sess, conn, hdr); + else if (hdrtype == 0x0202) /* getfile recv data */ + ret = handlehdr_getfile_recv(sess, conn, hdr); + else if (hdrtype == 0x0204) /* getfile finished */ + ret = handlehdr_getfile_finish(sess, conn, hdr); + else { + ret = -1; + } + + g_free(hdr); + + if (ret == -1) + aim_conn_close(conn); + + return ret; +} + +#if 0 +/** + * aim_oft_getfh - extracts an &aim_fileheader_t from buffer hdr. + * @hdr: buffer to extract header from + * + * returns pointer to new struct on success; %NULL on error. + * + */ +static struct aim_fileheader_t *aim_oft_getfh(unsigned char *hdr) +{ + struct aim_fileheader_t *fh; + int i, j; + if (!(fh = calloc(1, sizeof(struct aim_fileheader_t)))) + return NULL; + + /* [0] and [1] are the type. we can ignore those here. */ + i = 2; + for(j = 0; j < 8; j++, i++) + fh->bcookie[j] = hdr[i]; + fh->encrypt = aimutil_get16(hdr+i); + i += 2; + fh->compress = aimutil_get16(hdr+i); + i += 2; + fh->totfiles = aimutil_get16(hdr+i); + i += 2; + fh->filesleft = aimutil_get16(hdr+i); + i += 2; + fh->totparts = aimutil_get16(hdr+i); + i += 2; + fh->partsleft = aimutil_get16(hdr+i); + i += 2; + fh->totsize = aimutil_get32(hdr+i); + i += 4; + fh->size = aimutil_get32(hdr+i); + i += 4; + fh->modtime = aimutil_get32(hdr+i); + i += 4; + fh->checksum = aimutil_get32(hdr+i); + i += 4; + fh->rfrcsum = aimutil_get32(hdr+i); + i += 4; + fh->rfsize = aimutil_get32(hdr+i); + i += 4; + fh->cretime = aimutil_get32(hdr+i); + i += 4; + fh->rfcsum = aimutil_get32(hdr+i); + i += 4; + fh->nrecvd = aimutil_get32(hdr+i); + i += 4; + fh->recvcsum = aimutil_get32(hdr+i); + i += 4; + memcpy(fh->idstring, hdr+i, 32); + i += 32; + fh->flags = aimutil_get8(hdr+i); + i += 1; + fh->lnameoffset = aimutil_get8(hdr+i); + i += 1; + fh->lsizeoffset = aimutil_get8(hdr+i); + i += 1; + memcpy(fh->dummy, hdr+i, 69); + i += 69; + memcpy(fh->macfileinfo, hdr+i, 16); + i += 16; + fh->nencode = aimutil_get16(hdr+i); + i += 2; + fh->nlanguage = aimutil_get16(hdr+i); + i += 2; + memcpy(fh->name, hdr+i, 64); + i += 64; + return fh; +} +#endif + +/** + * aim_oft_checksum - calculate oft checksum of buffer + * @buffer: buffer of data to checksum + * @bufsize: size of buffer + * @checksum: pointer to integer to place result in (pointer!) + * + * + * Note that checksum is a pointer. Checksum should be filled with + * 0xFFFF0000 for each new file; you can have this checksum chunks of + * files in series if you just call it repeatedly in a for(; ; ) loop + * and don't reset the checksum between each call. And you thought we + * didn't care about you and your pathetic client's meomry footprint + * ;^) + * + * + * Also, it's been said that this is incorrect as currently + * written. You were warned. + */ +guint32 aim_oft_checksum(aim_session_t *sess, const char *buffer, int bufsize, guint32 *checksum) +{ + return 0xdeadbeef; +#if 0 + guint16 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 */ + /* XXX: check this corner case */ + if (check0 == 0) + 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 */ + /* XXX: check this corner case */ + if (check1 == 0) + check1 = 0x00ff; + else + check1--; + } + check0 -= buffer[i]; + } + } + + if (check0 > 0xff || check1 > 0xff) { + /* they shouldn't be able to do this. error! */ + faimdprintf(sess, 2, "check0 or check1 is too high: 0x%04x, 0x%04x\n", check0, check1); + return -1; + } + + /* grab just the lowest byte; this should be clean, but just in + case */ + check0 &= 0xff; + check1 &= 0xff; + + *checksum = ((check0 * 0x1000000) + (check1 * 0x10000)); + return *checksum; +#endif +} + +#if 0 +/** + * aim_oft_buildheader - fills a buffer with network-order fh data + * @dest: buffer to fill -- pre-alloced + * @fh: fh to get data from + * + * returns length written; -1 on error. + * DOES NOT DO BOUNDS CHECKING! + * + */ +static int oft_buildheader(unsigned char *dest, struct aim_fileheader_t *fh) +{ + int i, curbyte; + if (!dest || !fh) + return -1; + curbyte = 0; + for(i = 0; i < 8; i++) + curbyte += aimutil_put8(dest+curbyte, fh->bcookie[i]); + curbyte += aimutil_put16(dest+curbyte, fh->encrypt); + curbyte += aimutil_put16(dest+curbyte, fh->compress); + curbyte += aimutil_put16(dest+curbyte, fh->totfiles); + curbyte += aimutil_put16(dest+curbyte, fh->filesleft); + curbyte += aimutil_put16(dest+curbyte, fh->totparts); + curbyte += aimutil_put16(dest+curbyte, fh->partsleft); + curbyte += aimutil_put32(dest+curbyte, fh->totsize); + curbyte += aimutil_put32(dest+curbyte, fh->size); + curbyte += aimutil_put32(dest+curbyte, fh->modtime); + curbyte += aimutil_put32(dest+curbyte, fh->checksum); + curbyte += aimutil_put32(dest+curbyte, fh->rfrcsum); + curbyte += aimutil_put32(dest+curbyte, fh->rfsize); + curbyte += aimutil_put32(dest+curbyte, fh->cretime); + curbyte += aimutil_put32(dest+curbyte, fh->rfcsum); + curbyte += aimutil_put32(dest+curbyte, fh->nrecvd); + curbyte += aimutil_put32(dest+curbyte, fh->recvcsum); + memcpy(dest+curbyte, fh->idstring, 32); + curbyte += 32; + curbyte += aimutil_put8(dest+curbyte, fh->flags); + curbyte += aimutil_put8(dest+curbyte, fh->lnameoffset); + curbyte += aimutil_put8(dest+curbyte, fh->lsizeoffset); + memcpy(dest+curbyte, fh->dummy, 69); + curbyte += 69; + memcpy(dest+curbyte, fh->macfileinfo, 16); + curbyte += 16; + curbyte += aimutil_put16(dest+curbyte, fh->nencode); + curbyte += aimutil_put16(dest+curbyte, fh->nlanguage); + memset(dest+curbyte, 0x00, 64); + memcpy(dest+curbyte, fh->name, 64); + + /* XXX: Filenames longer than 64B */ + curbyte += 64; + return curbyte; +} +#endif + +/** + * aim_getfile_intitiate - Request an OFT getfile session + * @sess: your session, + * @conn: the BOS conn, + * @destsn is the SN to connect to. + * + * returns a new &aim_conn_t on success, %NULL on error + */ +aim_conn_t *aim_getfile_initiate(aim_session_t *sess, aim_conn_t *conn, const char *destsn) +{ + return NULL; +#if 0 + struct command_tx_struct *newpacket; + struct aim_conn_t *newconn; + struct aim_filetransfer_priv *priv; + struct aim_msgcookie_t *cookie; + int curbyte, i, listenfd; + short port = 4443; + struct hostent *hptr; + struct utsname myname; + char cap[16]; + char d[4]; + + /* 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); + + aim_putcap(cap, 16, AIM_CAPS_GETFILE); + + /* create the OSCAR packet */ + + if (!(newpacket = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 10+8+2+1+strlen(destsn)+4+4+0x42))) + return NULL; + newpacket->lock = 1; + + /* lock struct */ + curbyte = 0; + curbyte += aim_putsnac(newpacket->data+curbyte, 0x0004, 0x0006, 0x0000, sess->snac_nextid); + + /* XXX: check the cookie before commiting to using it */ + + /* 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() % 10)); + + curbyte += aimutil_put8(newpacket->data+curbyte, 0x00); + + /* grab all the data for cookie caching. */ + + if (!(cookie = (struct aim_msgcookie_t *)calloc(1, sizeof(struct aim_msgcookie_t)))) + return NULL; + memcpy(cookie->cookie, newpacket->data+curbyte-8, 8); + cookie->type = AIM_COOKIETYPE_OFTGET; + + if (!(priv = (struct aim_filetransfer_priv *)calloc(1, sizeof(struct aim_filetransfer_priv)))) + return NULL; + memcpy(priv->cookie, cookie, 8); + memcpy(priv->sn, destsn, sizeof(priv->sn)); + memcpy(priv->fh.name, "listing.txt", strlen("listing.txt")); + priv->state = 1; + + cookie->data = priv; + + aim_cachecookie(sess, 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, 0x0042); + + /* 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: ?? */ + curbyte += aimutil_put16(newpacket->data+curbyte, 0x000f); + curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000); + + /* 2711/000c: ?? */ + curbyte += aimutil_put16(newpacket->data+curbyte, 0x2711); + curbyte += aimutil_put16(newpacket->data+curbyte, 0x000c); + curbyte += aimutil_put32(newpacket->data+curbyte, 0x00120001); + + for(i = 0; i < 0x000c - 4; i++) + curbyte += aimutil_put8(newpacket->data+curbyte, 0x00); + + 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"); + return NULL; + } + + newconn->fd = listenfd; + newconn->subtype = AIM_CONN_SUBTYPE_OFT_GETFILE; + newconn->priv = priv; + + return newconn; +#endif +} + +/** + * aim_oft_getfile_request - request a particular file over an established getfile connection + * @sess: your session + * @conn: the established OFT getfile connection + * @name: filename to request + * @size: size of the file + * + * + * returns -1 on error, 0 on successful enqueuing + */ +int aim_oft_getfile_request(aim_session_t *sess, aim_conn_t *conn, const char *name, int size) +{ + return -EINVAL; +#if 0 + struct command_tx_struct *newoft; + struct aim_filetransfer_priv *ft; + if (!sess || !conn || !conn->priv || !name) + return -1; + + if (!(newoft = aim_tx_new(sess, conn, AIM_FRAMETYPE_OFT, 0x120c, 0))) { + faimdprintf(sess, 2, "faim: aim_accepttransfer: tx_new OFT failed\n"); + return -1; + } + + newoft->lock = 1; + + memcpy(newoft->hdr.oft.magic, "OFT2", 4); + newoft->hdr.oft.hdr2len = 0x100 - 8; + + ft = (struct aim_filetransfer_priv *)conn->priv; + ft->fh.filesleft = 1; + ft->fh.totfiles = 1; + ft->fh.totparts = 1; + ft->fh.partsleft = 1; + ft->fh.totsize = size; + ft->fh.size = size; + ft->fh.checksum = 0; + memcpy(ft->fh.name, name, strlen(name)); + memset(ft->fh.name+strlen(name), 0, 1); + + if (!(newoft->hdr.oft.hdr2 = (unsigned char *)calloc(1,newoft->hdr.oft.hdr2len))) { + newoft->lock = 0; + aim_frame_destroy(newoft); + return -1; + } + + if (!(aim_oft_buildheader(newoft->hdr.oft.hdr2, &(ft->fh)))) { + newoft->lock = 0; + aim_frame_destroy(newoft); + return -1; + } + + newoft->lock = 0; + + aim_tx_enqueue(sess, newoft); + return 0; +#endif +} + +/** + * aim_oft_getfile_ack - acknowledge a getfile download as complete + * @sess: your session + * @conn: the getfile conn to send the ack over + * + * Call this function after you have read all the data in a particular + * filetransfer. Returns -1 on error, 0 on apparent success + * + */ +int aim_oft_getfile_ack(aim_session_t *sess, aim_conn_t *conn) +{ + return -EINVAL; +#if 0 + struct command_tx_struct *newoft; + struct aim_filetransfer_priv *ft; + + if (!sess || !conn || !conn->priv) + return -1; + + if (!(newoft = aim_tx_new(sess, conn, AIM_FRAMETYPE_OFT, 0x0202, 0))) { + faimdprintf(sess, 2, "faim: aim_accepttransfer: tx_new OFT failed\n"); + return -1; + } + + newoft->lock = 1; + + memcpy(newoft->hdr.oft.magic, "OFT2", 4); + newoft->hdr.oft.hdr2len = 0x100-8; + + if (!(newoft->hdr.oft.hdr2 = (char *)calloc(1,newoft->hdr.oft.hdr2len))) { + newoft->lock = 0; + aim_frame_destroy(newoft); + return -1; + } + + ft = (struct aim_filetransfer_priv *)conn->priv; + + if (!(aim_oft_buildheader((unsigned char *)newoft->hdr.oft.hdr2, &(ft->fh)))) { + newoft->lock = 0; + aim_frame_destroy(newoft); + return -1; + } + + newoft->lock = 0; + aim_tx_enqueue(sess, newoft); + return 0; +#endif +} + +/** + * aim_oft_getfile_end - end a getfile. + * @sess: your session + * @conn: the getfile connection + * + * call this before you close the getfile connection if you're on the + * receiving/requesting end. + */ +int aim_oft_getfile_end(aim_session_t *sess, aim_conn_t *conn) +{ + return -EINVAL; +#if 0 + struct command_tx_struct *newoft; + struct aim_filetransfer_priv *ft; + + if (!sess || !conn || !conn->priv) + return -1; + + if (!(newoft = aim_tx_new(sess, conn, AIM_FRAMETYPE_OFT, 0x0204, 0))) { + faimdprintf(sess, 2, "faim: aim_accepttransfer: tx_new OFT failed\n"); + return -1; + } + + newoft->lock = 1; + + memcpy(newoft->hdr.oft.magic, "OFT2", 4); + newoft->hdr.oft.hdr2len = 0x100 - 8; + + if (!(newoft->hdr.oft.hdr2 = (char *)calloc(1,newoft->hdr.oft.hdr2len))) { + newoft->lock = 0; + aim_frame_destroy(newoft); + return -1; + } + + ft = (struct aim_filetransfer_priv *)conn->priv; + ft->state = 4; /* no longer wanting data */ + ft->fh.nrecvd = ft->fh.size; + ft->fh.recvcsum = ft->fh.checksum; + ft->fh.flags = 0x21; + + if (!(aim_oft_buildheader((unsigned char *)newoft->hdr.oft.hdr2, &(ft->fh)))) { + newoft->lock = 0; + aim_frame_destroy(newoft); + return -1; + } + + newoft->lock = 0; + aim_tx_enqueue(sess, newoft); + + return 0; +#endif /* 0 */ +} + |