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tdenetwork/kopete/protocols/gadu/libgadu/events.c

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/* $Id$ */
/*
* (C) Copyright 2001-2006 Wojtek Kaniewski <wojtekka@irc.pl>
* Robert J. Wo<57>ny <speedy@ziew.org>
* Arkadiusz Mi<4D>kiewicz <arekm@pld-linux.org>
* Adam Wysocki <gophi@ekg.chmurka.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License Version
* 2.1 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*/
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include "libgadu-config.h"
#include <errno.h>
#ifdef __GG_LIBGADU_HAVE_PTHREAD
# include <pthread.h>
#endif
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
#ifdef __GG_LIBGADU_HAVE_OPENSSL
# include <openssl/err.h>
# include <openssl/x509.h>
#endif
#include "compat.h"
#include "libgadu.h"
/*
* gg_event_free()
*
* zwalnia pami<6D><69> zajmowan<61> przez informacj<63> o zdarzeniu.
*
* - e - wska<6B>nik do informacji o zdarzeniu
*/
void gg_event_free(struct gg_event *e)
{
gg_debug(GG_DEBUG_FUNCTION, "** gg_event_free(%p);\n", e);
if (!e)
return;
switch (e->type) {
case GG_EVENT_MSG:
free(e->event.msg.message);
free(e->event.msg.formats);
free(e->event.msg.recipients);
break;
case GG_EVENT_NOTIFY:
free(e->event.notify);
break;
case GG_EVENT_NOTIFY60:
{
int i;
for (i = 0; e->event.notify60[i].uin; i++)
free(e->event.notify60[i].descr);
free(e->event.notify60);
break;
}
case GG_EVENT_STATUS60:
free(e->event.status60.descr);
break;
case GG_EVENT_STATUS:
free(e->event.status.descr);
break;
case GG_EVENT_NOTIFY_DESCR:
free(e->event.notify_descr.notify);
free(e->event.notify_descr.descr);
break;
case GG_EVENT_DCC_VOICE_DATA:
free(e->event.dcc_voice_data.data);
break;
case GG_EVENT_PUBDIR50_SEARCH_REPLY:
case GG_EVENT_PUBDIR50_READ:
case GG_EVENT_PUBDIR50_WRITE:
gg_pubdir50_free(e->event.pubdir50);
break;
case GG_EVENT_USERLIST:
free(e->event.userlist.reply);
break;
case GG_EVENT_IMAGE_REPLY:
free(e->event.image_reply.filename);
free(e->event.image_reply.image);
break;
}
free(e);
}
/*
* gg_image_queue_remove()
*
* usuwa z kolejki dany wpis.
*
* - s - sesja
* - q - kolejka
* - freeq - czy zwolni<6E> kolejk<6A>
*
* 0/-1
*/
int gg_image_queue_remove(struct gg_session *s, struct gg_image_queue *q, int freeq)
{
if (!s || !q) {
errno = EFAULT;
return -1;
}
if (s->images == q)
s->images = q->next;
else {
struct gg_image_queue *qq;
for (qq = s->images; qq; qq = qq->next) {
if (qq->next == q) {
qq->next = q->next;
break;
}
}
}
if (freeq) {
free(q->image);
free(q->filename);
free(q);
}
return 0;
}
/*
* gg_image_queue_parse() // funkcja wewn<77>trzna
*
* parsuje przychodz<64>cy pakiet z obrazkiem.
*
* - e - opis zdarzenia
* -
*/
static void gg_image_queue_parse(struct gg_event *e, char *p, unsigned int len, struct gg_session *sess, uin_t sender)
{
struct gg_msg_image_reply *i = (void*) p;
struct gg_image_queue *q, *qq;
if (!p || !sess || !e) {
errno = EFAULT;
return;
}
/* znajd<6A> dany obrazek w kolejce danej sesji */
for (qq = sess->images, q = NULL; qq; qq = qq->next) {
if (sender == qq->sender && i->size == qq->size && i->crc32 == qq->crc32) {
q = qq;
break;
}
}
if (!q) {
gg_debug(GG_DEBUG_MISC, "// gg_image_queue_parse() unknown image from %d, size=%d, crc32=%.8x\n", sender, i->size, i->crc32);
return;
}
if (p[0] == 0x05) {
int i, ok = 0;
q->done = 0;
len -= sizeof(struct gg_msg_image_reply);
p += sizeof(struct gg_msg_image_reply);
/* sprawd<77>, czy mamy tekst zako<6B>czony \0 */
for (i = 0; i < len; i++) {
if (!p[i]) {
ok = 1;
break;
}
}
if (!ok) {
gg_debug(GG_DEBUG_MISC, "// gg_image_queue_parse() malformed packet from %d, unlimited filename\n", sender);
return;
}
if (!(q->filename = strdup(p))) {
gg_debug(GG_DEBUG_MISC, "// gg_image_queue_parse() not enough memory for filename\n");
return;
}
len -= strlen(p) + 1;
p += strlen(p) + 1;
} else {
len -= sizeof(struct gg_msg_image_reply);
p += sizeof(struct gg_msg_image_reply);
}
if (q->done + len > q->size)
len = q->size - q->done;
memcpy(q->image + q->done, p, len);
q->done += len;
/* je<6A>li sko<6B>czono odbiera<72> obrazek, wygeneruj zdarzenie */
if (q->done >= q->size) {
e->type = GG_EVENT_IMAGE_REPLY;
e->event.image_reply.sender = sender;
e->event.image_reply.size = q->size;
e->event.image_reply.crc32 = q->crc32;
e->event.image_reply.filename = q->filename;
e->event.image_reply.image = q->image;
gg_image_queue_remove(sess, q, 0);
free(q);
}
}
/*
* gg_handle_recv_msg() // funkcja wewn<77>trzna
*
* obs<62>uguje pakiet z przychodz<64>c<EFBFBD> wiadomo<6D>ci<63>, rozbijaj<61>c go na dodatkowe
* struktury (konferencje, kolorki) w razie potrzeby.
*
* - h - nag<61><67>wek pakietu
* - e - opis zdarzenia
*
* 0, -1.
*/
static int gg_handle_recv_msg(struct gg_header *h, struct gg_event *e, struct gg_session *sess)
{
struct gg_recv_msg *r = (struct gg_recv_msg*) ((char*) h + sizeof(struct gg_header));
char *p, *packet_end = (char*) r + h->length;
gg_debug(GG_DEBUG_FUNCTION, "** gg_handle_recv_msg(%p, %p);\n", h, e);
if (!r->seq && !r->msgclass) {
gg_debug(GG_DEBUG_MISC, "// gg_handle_recv_msg() oops, silently ignoring the bait\n");
e->type = GG_EVENT_NONE;
return 0;
}
for (p = (char*) r + sizeof(*r); *p; p++) {
if (*p == 0x02 && p == packet_end - 1) {
gg_debug(GG_DEBUG_MISC, "// gg_handle_recv_msg() received ctcp packet\n");
break;
}
if (p >= packet_end) {
gg_debug(GG_DEBUG_MISC, "// gg_handle_recv_msg() malformed packet, message out of bounds (0)\n");
goto malformed;
}
}
p++;
/* przeanalizuj dodatkowe opcje */
while (p < packet_end) {
switch (*p) {
case 0x01: /* konferencja */
{
struct gg_msg_recipients *m = (void*) p;
uint32_t i, count;
p += sizeof(*m);
if (p > packet_end) {
gg_debug(GG_DEBUG_MISC, "// gg_handle_recv_msg() packet out of bounds (1)\n");
goto malformed;
}
count = gg_fix32(m->count);
if (p + count * sizeof(uin_t) > packet_end || p + count * sizeof(uin_t) < p || count > 0xffff) {
gg_debug(GG_DEBUG_MISC, "// gg_handle_recv_msg() packet out of bounds (1.5)\n");
goto malformed;
}
if (!(e->event.msg.recipients = (void*) malloc(count * sizeof(uin_t)))) {
gg_debug(GG_DEBUG_MISC, "// gg_handle_recv_msg() not enough memory for recipients data\n");
goto fail;
}
for (i = 0; i < count; i++, p += sizeof(uint32_t)) {
uint32_t u;
memcpy(&u, p, sizeof(uint32_t));
e->event.msg.recipients[i] = gg_fix32(u);
}
e->event.msg.recipients_count = count;
break;
}
case 0x02: /* richtext */
{
uint16_t len;
char *buf;
if (p + 3 > packet_end) {
gg_debug(GG_DEBUG_MISC, "// gg_handle_recv_msg() packet out of bounds (2)\n");
goto malformed;
}
memcpy(&len, p + 1, sizeof(uint16_t));
len = gg_fix16(len);
if (!(buf = malloc(len))) {
gg_debug(GG_DEBUG_MISC, "// gg_handle_recv_msg() not enough memory for richtext data\n");
goto fail;
}
p += 3;
if (p + len > packet_end) {
gg_debug(GG_DEBUG_MISC, "// gg_handle_recv_msg() packet out of bounds (3)\n");
free(buf);
goto malformed;
}
memcpy(buf, p, len);
e->event.msg.formats = buf;
e->event.msg.formats_length = len;
p += len;
break;
}
case 0x04: /* image_request */
{
struct gg_msg_image_request *i = (void*) p;
if (p + sizeof(*i) > packet_end) {
gg_debug(GG_DEBUG_MISC, "// gg_handle_recv_msg() packet out of bounds (3)\n");
goto malformed;
}
e->event.image_request.sender = gg_fix32(r->sender);
e->event.image_request.size = gg_fix32(i->size);
e->event.image_request.crc32 = gg_fix32(i->crc32);
e->type = GG_EVENT_IMAGE_REQUEST;
return 0;
}
case 0x05: /* image_reply */
case 0x06:
{
struct gg_msg_image_reply *rep = (void*) p;
if (p + sizeof(struct gg_msg_image_reply) == packet_end) {
/* pusta odpowied<65> - klient po drugiej stronie nie ma <20><>danego obrazka */
e->type = GG_EVENT_IMAGE_REPLY;
e->event.image_reply.sender = gg_fix32(r->sender);
e->event.image_reply.size = 0;
e->event.image_reply.crc32 = gg_fix32(rep->crc32);
e->event.image_reply.filename = NULL;
e->event.image_reply.image = NULL;
return 0;
} else if (p + sizeof(struct gg_msg_image_reply) + 1 > packet_end) {
gg_debug(GG_DEBUG_MISC, "// gg_handle_recv_msg() packet out of bounds (4)\n");
goto malformed;
}
rep->size = gg_fix32(rep->size);
rep->crc32 = gg_fix32(rep->crc32);
gg_image_queue_parse(e, p, (unsigned int)(packet_end - p), sess, gg_fix32(r->sender));
return 0;
}
default:
{
gg_debug(GG_DEBUG_MISC, "// gg_handle_recv_msg() unknown payload 0x%.2x\n", *p);
p = packet_end;
}
}
}
e->type = GG_EVENT_MSG;
e->event.msg.msgclass = gg_fix32(r->msgclass);
e->event.msg.sender = gg_fix32(r->sender);
e->event.msg.time = gg_fix32(r->time);
e->event.msg.message = strdup((char*) r + sizeof(*r));
return 0;
malformed:
e->type = GG_EVENT_NONE;
free(e->event.msg.recipients);
free(e->event.msg.formats);
return 0;
fail:
free(e->event.msg.recipients);
free(e->event.msg.formats);
return -1;
}
/*
* gg_watch_fd_connected() // funkcja wewn<77>trzna
*
* patrzy na gniazdo, odbiera pakiet i wype<70>nia struktur<75> zdarzenia.
*
* - sess - struktura opisuj<75>ca sesj<73>
* - e - opis zdarzenia
*
* 0, -1.
*/
static int gg_watch_fd_connected(struct gg_session *sess, struct gg_event *e)
{
struct gg_header *h = NULL;
char *p;
gg_debug(GG_DEBUG_FUNCTION, "** gg_watch_fd_connected(%p, %p);\n", sess, e);
if (!sess) {
errno = EFAULT;
return -1;
}
if (!(h = gg_recv_packet(sess))) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd_connected() gg_recv_packet failed (errno=%d, %s)\n", errno, strerror(errno));
goto fail;
}
p = (char*) h + sizeof(struct gg_header);
switch (h->type) {
case GG_RECV_MSG:
{
if (h->length >= sizeof(struct gg_recv_msg))
if (gg_handle_recv_msg(h, e, sess))
goto fail;
break;
}
case GG_NOTIFY_REPLY:
{
struct gg_notify_reply *n = (void*) p;
unsigned int count, i;
char *tmp;
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd_connected() received a notify reply\n");
if (h->length < sizeof(*n)) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd_connected() incomplete packet\n");
errno = EINVAL;
goto fail;
}
if (gg_fix32(n->status) == GG_STATUS_BUSY_DESCR || gg_fix32(n->status) == GG_STATUS_NOT_AVAIL_DESCR || gg_fix32(n->status) == GG_STATUS_AVAIL_DESCR) {
e->type = GG_EVENT_NOTIFY_DESCR;
if (!(e->event.notify_descr.notify = (void*) malloc(sizeof(*n) * 2))) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd_connected() not enough memory for notify data\n");
goto fail;
}
e->event.notify_descr.notify[1].uin = 0;
memcpy(e->event.notify_descr.notify, p, sizeof(*n));
e->event.notify_descr.notify[0].uin = gg_fix32(e->event.notify_descr.notify[0].uin);
e->event.notify_descr.notify[0].status = gg_fix32(e->event.notify_descr.notify[0].status);
e->event.notify_descr.notify[0].remote_port = gg_fix16(e->event.notify_descr.notify[0].remote_port);
count = h->length - sizeof(*n);
if (!(tmp = malloc(count + 1))) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd_connected() not enough memory for notify data\n");
goto fail;
}
memcpy(tmp, p + sizeof(*n), count);
tmp[count] = 0;
e->event.notify_descr.descr = tmp;
} else {
e->type = GG_EVENT_NOTIFY;
if (!(e->event.notify = (void*) malloc(h->length + 2 * sizeof(*n)))) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd_connected() not enough memory for notify data\n");
goto fail;
}
memcpy(e->event.notify, p, h->length);
count = h->length / sizeof(*n);
e->event.notify[count].uin = 0;
for (i = 0; i < count; i++) {
e->event.notify[i].uin = gg_fix32(e->event.notify[i].uin);
e->event.notify[i].status = gg_fix32(e->event.notify[i].status);
e->event.notify[i].remote_port = gg_fix16(e->event.notify[i].remote_port);
}
}
break;
}
case GG_STATUS:
{
struct gg_status *s = (void*) p;
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd_connected() received a status change\n");
if (h->length >= sizeof(*s)) {
e->type = GG_EVENT_STATUS;
memcpy(&e->event.status, p, sizeof(*s));
e->event.status.uin = gg_fix32(e->event.status.uin);
e->event.status.status = gg_fix32(e->event.status.status);
if (h->length > sizeof(*s)) {
int len = h->length - sizeof(*s);
char *buf = malloc(len + 1);
if (buf) {
memcpy(buf, p + sizeof(*s), len);
buf[len] = 0;
}
e->event.status.descr = buf;
} else
e->event.status.descr = NULL;
}
break;
}
case GG_NOTIFY_REPLY60:
{
struct gg_notify_reply60 *n = (void*) p;
unsigned int length = h->length, i = 0;
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd_connected() received a notify reply\n");
e->type = GG_EVENT_NOTIFY60;
e->event.notify60 = malloc(sizeof(*e->event.notify60));
if (!e->event.notify60) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd_connected() not enough memory for notify data\n");
goto fail;
}
e->event.notify60[0].uin = 0;
while (length >= sizeof(struct gg_notify_reply60)) {
uin_t uin = gg_fix32(n->uin);
char *tmp;
e->event.notify60[i].uin = uin & 0x00ffffff;
e->event.notify60[i].status = n->status;
e->event.notify60[i].remote_ip = n->remote_ip;
e->event.notify60[i].remote_port = gg_fix16(n->remote_port);
e->event.notify60[i].version = n->version;
e->event.notify60[i].image_size = n->image_size;
e->event.notify60[i].descr = NULL;
e->event.notify60[i].time = 0;
if (uin & 0x40000000)
e->event.notify60[i].version |= GG_HAS_AUDIO_MASK;
if (uin & 0x08000000)
e->event.notify60[i].version |= GG_ERA_OMNIX_MASK;
if (GG_S_D(n->status)) {
unsigned char descr_len = *((char*) n + sizeof(struct gg_notify_reply60));
if (descr_len < length) {
if (!(e->event.notify60[i].descr = malloc(descr_len + 1))) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd_connected() not enough memory for notify data\n");
goto fail;
}
memcpy(e->event.notify60[i].descr, (char*) n + sizeof(struct gg_notify_reply60) + 1, descr_len);
e->event.notify60[i].descr[descr_len] = 0;
/* XXX czas */
}
length -= sizeof(struct gg_notify_reply60) + descr_len + 1;
n = (void*) ((char*) n + sizeof(struct gg_notify_reply60) + descr_len + 1);
} else {
length -= sizeof(struct gg_notify_reply60);
n = (void*) ((char*) n + sizeof(struct gg_notify_reply60));
}
if (!(tmp = realloc(e->event.notify60, (i + 2) * sizeof(*e->event.notify60)))) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd_connected() not enough memory for notify data\n");
free(e->event.notify60);
goto fail;
}
e->event.notify60 = (void*) tmp;
e->event.notify60[++i].uin = 0;
}
break;
}
case GG_STATUS60:
{
struct gg_status60 *s = (void*) p;
uint32_t uin;
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd_connected() received a status change\n");
if (h->length < sizeof(*s))
break;
uin = gg_fix32(s->uin);
e->type = GG_EVENT_STATUS60;
e->event.status60.uin = uin & 0x00ffffff;
e->event.status60.status = s->status;
e->event.status60.remote_ip = s->remote_ip;
e->event.status60.remote_port = gg_fix16(s->remote_port);
e->event.status60.version = s->version;
e->event.status60.image_size = s->image_size;
e->event.status60.descr = NULL;
e->event.status60.time = 0;
if (uin & 0x40000000)
e->event.status60.version |= GG_HAS_AUDIO_MASK;
if (uin & 0x08000000)
e->event.status60.version |= GG_ERA_OMNIX_MASK;
if (h->length > sizeof(*s)) {
int len = h->length - sizeof(*s);
char *buf = malloc(len + 1);
if (buf) {
memcpy(buf, (char*) p + sizeof(*s), len);
buf[len] = 0;
}
e->event.status60.descr = buf;
if (len > 4 && p[h->length - 5] == 0) {
uint32_t t;
memcpy(&t, p + h->length - 4, sizeof(uint32_t));
e->event.status60.time = gg_fix32(t);
}
}
break;
}
case GG_SEND_MSG_ACK:
{
struct gg_send_msg_ack *s = (void*) p;
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd_connected() received a message ack\n");
if (h->length < sizeof(*s))
break;
e->type = GG_EVENT_ACK;
e->event.ack.status = gg_fix32(s->status);
e->event.ack.recipient = gg_fix32(s->recipient);
e->event.ack.seq = gg_fix32(s->seq);
break;
}
case GG_PONG:
{
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd_connected() received a pong\n");
e->type = GG_EVENT_PONG;
sess->last_pong = time(NULL);
break;
}
case GG_DISCONNECTING:
{
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd_connected() received disconnection warning\n");
e->type = GG_EVENT_DISCONNECT;
break;
}
case GG_PUBDIR50_REPLY:
{
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd_connected() received pubdir/search reply\n");
if (gg_pubdir50_handle_reply(e, p, h->length) == -1)
goto fail;
break;
}
case GG_USERLIST_REPLY:
{
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd_connected() received userlist reply\n");
if (h->length < 1)
break;
/* je<6A>li odpowied<65> na eksport, wywo<77>aj zdarzenie tylko
* gdy otrzymano wszystkie odpowiedzi */
if (p[0] == GG_USERLIST_PUT_REPLY || p[0] == GG_USERLIST_PUT_MORE_REPLY) {
if (--sess->userlist_blocks)
break;
p[0] = GG_USERLIST_PUT_REPLY;
}
if (h->length > 1) {
char *tmp;
unsigned int len = (sess->userlist_reply) ? strlen(sess->userlist_reply) : 0;
gg_debug(GG_DEBUG_MISC, "userlist_reply=%p, len=%d\n", sess->userlist_reply, len);
if (!(tmp = realloc(sess->userlist_reply, len + h->length))) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd_connected() not enough memory for userlist reply\n");
free(sess->userlist_reply);
sess->userlist_reply = NULL;
goto fail;
}
sess->userlist_reply = tmp;
sess->userlist_reply[len + h->length - 1] = 0;
memcpy(sess->userlist_reply + len, p + 1, h->length - 1);
}
if (p[0] == GG_USERLIST_GET_MORE_REPLY)
break;
e->type = GG_EVENT_USERLIST;
e->event.userlist.type = p[0];
e->event.userlist.reply = sess->userlist_reply;
sess->userlist_reply = NULL;
break;
}
default:
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd_connected() received unknown packet 0x%.2x\n", h->type);
}
free(h);
return 0;
fail:
free(h);
return -1;
}
/*
* gg_watch_fd()
*
* funkcja, kt<6B>r<EFBFBD> nale<6C>y wywo<77>a<EFBFBD>, gdy co<63> si<73> stanie z obserwowanym
* deskryptorem. zwraca klientowi informacj<63> o tym, co si<73> dzieje.
*
* - sess - opis sesji
*
* wska<6B>nik do struktury gg_event, kt<6B>r<EFBFBD> trzeba zwolni<6E> p<><70>niej
* za pomoc<6F> gg_event_free(). jesli rodzaj zdarzenia jest r<>wny
* GG_EVENT_NONE, nale<6C>y je zignorowa<77>. je<6A>li zwr<77>ci<63>o NULL,
* sta<74>o si<73> co<63> niedobrego -- albo zabrak<61>o pami<6D>ci albo zerwa<77>o
* po<70><6F>czenie.
*/
struct gg_event *gg_watch_fd(struct gg_session *sess)
{
struct gg_event *e;
int res = 0;
int port = 0;
int errno2 = 0;
gg_debug(GG_DEBUG_FUNCTION, "** gg_watch_fd(%p);\n", sess);
if (!sess) {
errno = EFAULT;
return NULL;
}
if (!(e = (void*) calloc(1, sizeof(*e)))) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() not enough memory for event data\n");
return NULL;
}
e->type = GG_EVENT_NONE;
switch (sess->state) {
case GG_STATE_RESOLVING:
{
struct in_addr addr;
int failed = 0;
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() GG_STATE_RESOLVING\n");
if (read(sess->fd, &addr, sizeof(addr)) < (signed)sizeof(addr) || addr.s_addr == INADDR_NONE) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() resolving failed\n");
failed = 1;
errno2 = errno;
}
close(sess->fd);
sess->fd = -1;
#ifndef __GG_LIBGADU_HAVE_PTHREAD
waitpid(sess->pid, NULL, 0);
sess->pid = -1;
#else
if (sess->resolver) {
pthread_cancel(*((pthread_t*) sess->resolver));
free(sess->resolver);
sess->resolver = NULL;
}
#endif
if (failed) {
errno = errno2;
goto fail_resolving;
}
/* je<6A>li jeste<74>my w resolverze i mamy ustawiony port
* proxy, znaczy, <20>e resolvowali<6C>my proxy. zatem
* wpiszmy jego adres. */
if (sess->proxy_port)
sess->proxy_addr = addr.s_addr;
/* zapiszmy sobie adres huba i adres serwera (do
* bezpo<70>redniego po<70><6F>czenia, je<6A>li hub le<6C>y)
* z resolvera. */
if (sess->proxy_addr && sess->proxy_port)
port = sess->proxy_port;
else {
sess->server_addr = sess->hub_addr = addr.s_addr;
port = GG_APPMSG_PORT;
}
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() resolved, connecting to %s:%d\n", inet_ntoa(addr), port);
/* <20><>czymy si<73> albo z hubem, albo z proxy, zale<6C>nie
* od tego, co resolvowali<6C>my. */
if ((sess->fd = gg_connect(&addr, port, sess->async)) == -1) {
/* je<6A>li w trybie asynchronicznym gg_connect()
* zwr<77>ci b<><62>d, nie ma sensu pr<70>bowa<77> dalej. */
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() connection failed (errno=%d, %s), critical\n", errno, strerror(errno));
goto fail_connecting;
}
/* je<6A>li podano serwer i <20><>czmy si<73> przez proxy,
* jest to bezpo<70>rednie po<70><6F>czenie, inaczej jest
* do huba. */
sess->state = (sess->proxy_addr && sess->proxy_port && sess->server_addr) ? GG_STATE_CONNECTING_GG : GG_STATE_CONNECTING_HUB;
sess->check = GG_CHECK_WRITE;
sess->timeout = GG_DEFAULT_TIMEOUT;
break;
}
case GG_STATE_CONNECTING_HUB:
{
char buf[1024], *client, *auth;
int res = 0, res_size = sizeof(res);
const char *host, *appmsg;
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() GG_STATE_CONNECTING_HUB\n");
/* je<6A>li asynchroniczne, sprawdzamy, czy nie wyst<73>pi<70>
* przypadkiem jaki<6B> b<><62>d. */
if (sess->async && (getsockopt(sess->fd, SOL_SOCKET, SO_ERROR, &res, &res_size) || res)) {
/* no tak, nie uda<64>o si<73> po<70><6F>czy<7A> z proxy. nawet
* nie pr<70>bujemy dalej. */
if (sess->proxy_addr && sess->proxy_port) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() connection to proxy failed (errno=%d, %s)\n", res, strerror(res));
goto fail_connecting;
}
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() connection to hub failed (errno=%d, %s), trying direct connection\n", res, strerror(res));
close(sess->fd);
if ((sess->fd = gg_connect(&sess->hub_addr, GG_DEFAULT_PORT, sess->async)) == -1) {
/* przy asynchronicznych, gg_connect()
* zwraca -1 przy b<><62>dach socket(),
* ioctl(), braku routingu itd. dlatego
* nawet nie pr<70>bujemy dalej. */
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() direct connection failed (errno=%d, %s), critical\n", errno, strerror(errno));
goto fail_connecting;
}
sess->state = GG_STATE_CONNECTING_GG;
sess->check = GG_CHECK_WRITE;
sess->timeout = GG_DEFAULT_TIMEOUT;
break;
}
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() connected to hub, sending query\n");
if (!(client = gg_urlencode((sess->client_version) ? sess->client_version : GG_DEFAULT_CLIENT_VERSION))) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() out of memory for client version\n");
goto fail_connecting;
}
if (!gg_proxy_http_only && sess->proxy_addr && sess->proxy_port)
host = "http://" GG_APPMSG_HOST;
else
host = "";
#ifdef __GG_LIBGADU_HAVE_OPENSSL
if (sess->ssl)
appmsg = "appmsg3.asp";
else
#endif
appmsg = "appmsg2.asp";
auth = gg_proxy_auth();
snprintf(buf, sizeof(buf) - 1,
"GET %s/appsvc/%s?fmnumber=%u&version=%s&lastmsg=%d HTTP/1.0\r\n"
"Host: " GG_APPMSG_HOST "\r\n"
"User-Agent: " GG_HTTP_USERAGENT "\r\n"
"Pragma: no-cache\r\n"
"%s"
"\r\n", host, appmsg, sess->uin, client, sess->last_sysmsg, (auth) ? auth : "");
if (auth)
free(auth);
free(client);
/* zwolnij pami<6D><69> po wersji klienta. */
if (sess->client_version) {
free(sess->client_version);
sess->client_version = NULL;
}
gg_debug(GG_DEBUG_MISC, "=> -----BEGIN-HTTP-QUERY-----\n%s\n=> -----END-HTTP-QUERY-----\n", buf);
/* zapytanie jest kr<6B>tkie, wi<77>c zawsze zmie<69>ci si<73>
* do bufora gniazda. je<6A>li write() zwr<77>ci mniej,
* sta<74>o si<73> co<63> z<>ego. */
if (write(sess->fd, buf, strlen(buf)) < (signed)strlen(buf)) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() sending query failed\n");
e->type = GG_EVENT_CONN_FAILED;
e->event.failure = GG_FAILURE_WRITING;
sess->state = GG_STATE_IDLE;
close(sess->fd);
sess->fd = -1;
break;
}
sess->state = GG_STATE_READING_DATA;
sess->check = GG_CHECK_READ;
sess->timeout = GG_DEFAULT_TIMEOUT;
break;
}
case GG_STATE_READING_DATA:
{
char buf[1024], *tmp, *host;
int port = GG_DEFAULT_PORT;
struct in_addr addr;
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() GG_STATE_READING_DATA\n");
/* czytamy lini<6E> z gniazda i obcinamy \r\n. */
gg_read_line(sess->fd, buf, sizeof(buf) - 1);
gg_chomp(buf);
gg_debug(GG_DEBUG_TRAFFIC, "// gg_watch_fd() received http header (%s)\n", buf);
/* sprawdzamy, czy wszystko w porz<72>dku. */
if (strncmp(buf, "HTTP/1.", 7) || strncmp(buf + 9, "200", 3)) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() that's not what we've expected, trying direct connection\n");
close(sess->fd);
/* je<6A>li otrzymali<6C>my jakie<69> dziwne informacje,
* pr<70>bujemy si<73> <20><>czy<7A> z pomini<6E>ciem huba. */
if (sess->proxy_addr && sess->proxy_port) {
if ((sess->fd = gg_connect(&sess->proxy_addr, sess->proxy_port, sess->async)) == -1) {
/* trudno. nie wysz<73>o. */
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() connection to proxy failed (errno=%d, %s)\n", errno, strerror(errno));
goto fail_connecting;
}
sess->state = GG_STATE_CONNECTING_GG;
sess->check = GG_CHECK_WRITE;
sess->timeout = GG_DEFAULT_TIMEOUT;
break;
}
sess->port = GG_DEFAULT_PORT;
/* <20><>czymy si<73> na port 8074 huba. */
if ((sess->fd = gg_connect(&sess->hub_addr, sess->port, sess->async)) == -1) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() connection failed (errno=%d, %s), trying https\n", errno, strerror(errno));
sess->port = GG_HTTPS_PORT;
/* <20><>czymy si<73> na port 443. */
if ((sess->fd = gg_connect(&sess->hub_addr, sess->port, sess->async)) == -1) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() connection failed (errno=%d, %s)\n", errno, strerror(errno));
goto fail_connecting;
}
}
sess->state = GG_STATE_CONNECTING_GG;
sess->check = GG_CHECK_WRITE;
sess->timeout = GG_DEFAULT_TIMEOUT;
break;
}
/* ignorujemy reszt<7A> nag<61><67>wka. */
while (strcmp(buf, "\r\n") && strcmp(buf, ""))
gg_read_line(sess->fd, buf, sizeof(buf) - 1);
/* czytamy pierwsz<73> lini<6E> danych. */
gg_read_line(sess->fd, buf, sizeof(buf) - 1);
gg_chomp(buf);
/* je<6A>li pierwsza liczba w linii nie jest r<>wna zeru,
* oznacza to, <20>e mamy wiadomo<6D><6F> systemow<6F>. */
if (atoi(buf)) {
char tmp[1024], *foo, *sysmsg_buf = NULL;
int len = 0;
while (gg_read_line(sess->fd, tmp, sizeof(tmp) - 1)) {
if (!(foo = realloc(sysmsg_buf, len + strlen(tmp) + 2))) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() out of memory for system message, ignoring\n");
break;
}
sysmsg_buf = foo;
if (!len)
strcpy(sysmsg_buf, tmp);
else
strcat(sysmsg_buf, tmp);
len += strlen(tmp);
}
e->type = GG_EVENT_MSG;
e->event.msg.msgclass = atoi(buf);
e->event.msg.sender = 0;
e->event.msg.message = sysmsg_buf;
}
close(sess->fd);
gg_debug(GG_DEBUG_TRAFFIC, "// gg_watch_fd() received http data (%s)\n", buf);
/* analizujemy otrzymane dane. */
tmp = buf;
while (*tmp && *tmp != ' ')
tmp++;
while (*tmp && *tmp == ' ')
tmp++;
host = tmp;
while (*tmp && *tmp != ' ')
tmp++;
*tmp = 0;
if ((tmp = (char*)strchr(host, ':'))) {
*tmp = 0;
port = atoi(tmp + 1);
}
if (!strcmp(host, "notoperating")) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() service unavailable\n", errno, strerror(errno));
sess->fd = -1;
goto fail_unavailable;
}
addr.s_addr = inet_addr(host);
sess->server_addr = addr.s_addr;
if (!gg_proxy_http_only && sess->proxy_addr && sess->proxy_port) {
/* je<6A>li mamy proxy, <20><>czymy si<73> z nim. */
if ((sess->fd = gg_connect(&sess->proxy_addr, sess->proxy_port, sess->async)) == -1) {
/* nie wysz<73>o? trudno. */
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() connection to proxy failed (errno=%d, %s)\n", errno, strerror(errno));
goto fail_connecting;
}
sess->state = GG_STATE_CONNECTING_GG;
sess->check = GG_CHECK_WRITE;
sess->timeout = GG_DEFAULT_TIMEOUT;
break;
}
sess->port = port;
/* <20><>czymy si<73> z w<>a<EFBFBD>ciwym serwerem. */
if ((sess->fd = gg_connect(&addr, sess->port, sess->async)) == -1) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() connection failed (errno=%d, %s), trying https\n", errno, strerror(errno));
sess->port = GG_HTTPS_PORT;
/* nie wysz<73>o? pr<70>bujemy portu 443. */
if ((sess->fd = gg_connect(&addr, GG_HTTPS_PORT, sess->async)) == -1) {
/* ostatnia deska ratunku zawiod<6F>a?
* w takim razie zwijamy manatki. */
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() connection failed (errno=%d, %s)\n", errno, strerror(errno));
goto fail_connecting;
}
}
sess->state = GG_STATE_CONNECTING_GG;
sess->check = GG_CHECK_WRITE;
sess->timeout = GG_DEFAULT_TIMEOUT;
break;
}
case GG_STATE_CONNECTING_GG:
{
int res = 0, res_size = sizeof(res);
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() GG_STATE_CONNECTING_GG\n");
/* je<6A>li wyst<73>pi<70> b<><62>d podczas <20><>czenia si<73>... */
if (sess->async && (sess->timeout == 0 || getsockopt(sess->fd, SOL_SOCKET, SO_ERROR, &res, &res_size) || res)) {
/* je<6A>li nie uda<64>o si<73> po<70><6F>czenie z proxy,
* nie mamy czego pr<70>bowa<77> wi<77>cej. */
if (sess->proxy_addr && sess->proxy_port) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() connection to proxy failed (errno=%d, %s)\n", res, strerror(res));
goto fail_connecting;
}
close(sess->fd);
sess->fd = -1;
#ifdef ETIMEDOUT
if (sess->timeout == 0)
errno = ETIMEDOUT;
#endif
#ifdef __GG_LIBGADU_HAVE_OPENSSL
/* je<6A>li logujemy si<73> po TLS, nie pr<70>bujemy
* si<73> <20><>czy<7A> ju<6A> z niczym innym w przypadku
* b<><62>du. nie do<64><6F>, <20>e nie ma sensu, to i
* trzeba by si<73> bawi<77> w tworzenie na nowo
* SSL i SSL_CTX. */
if (sess->ssl) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() connection failed (errno=%d, %s)\n", res, strerror(res));
goto fail_connecting;
}
#endif
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() connection failed (errno=%d, %s), trying https\n", res, strerror(res));
sess->port = GG_HTTPS_PORT;
/* pr<70>bujemy na port 443. */
if ((sess->fd = gg_connect(&sess->server_addr, sess->port, sess->async)) == -1) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() connection failed (errno=%d, %s)\n", errno, strerror(errno));
goto fail_connecting;
}
}
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() connected\n");
if (gg_proxy_http_only)
sess->proxy_port = 0;
/* je<6A>li mamy proxy, wy<77>lijmy zapytanie. */
if (sess->proxy_addr && sess->proxy_port) {
char buf[100], *auth = gg_proxy_auth();
struct in_addr addr;
if (sess->server_addr)
addr.s_addr = sess->server_addr;
else
addr.s_addr = sess->hub_addr;
snprintf(buf, sizeof(buf), "CONNECT %s:%d HTTP/1.0\r\n", inet_ntoa(addr), sess->port);
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() proxy request:\n// %s", buf);
/* wysy<73>amy zapytanie. jest ono na tyle kr<6B>tkie,
* <20>e musi si<73> zmie<69>ci<63> w buforze gniazda. je<6A>li
* write() zawiedzie, sta<74>o si<73> co<63> z<>ego. */
if (write(sess->fd, buf, strlen(buf)) < (signed)strlen(buf)) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() can't send proxy request\n");
if (auth)
free(auth);
goto fail_connecting;
}
if (auth) {
gg_debug(GG_DEBUG_MISC, "// %s", auth);
if (write(sess->fd, auth, strlen(auth)) < (signed)strlen(auth)) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() can't send proxy request\n");
free(auth);
goto fail_connecting;
}
free(auth);
}
if (write(sess->fd, "\r\n", 2) < 2) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() can't send proxy request\n");
goto fail_connecting;
}
}
#ifdef __GG_LIBGADU_HAVE_OPENSSL
if (sess->ssl) {
SSL_set_fd(sess->ssl, sess->fd);
sess->state = GG_STATE_TLS_NEGOTIATION;
sess->check = GG_CHECK_WRITE;
sess->timeout = GG_DEFAULT_TIMEOUT;
break;
}
#endif
sess->state = GG_STATE_READING_KEY;
sess->check = GG_CHECK_READ;
sess->timeout = GG_DEFAULT_TIMEOUT;
break;
}
#ifdef __GG_LIBGADU_HAVE_OPENSSL
case GG_STATE_TLS_NEGOTIATION:
{
int res;
X509 *peer;
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() GG_STATE_TLS_NEGOTIATION\n");
if ((res = SSL_connect(sess->ssl)) <= 0) {
int err = SSL_get_error(sess->ssl, res);
if (res == 0) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() disconnected during TLS negotiation\n");
e->type = GG_EVENT_CONN_FAILED;
e->event.failure = GG_FAILURE_TLS;
sess->state = GG_STATE_IDLE;
close(sess->fd);
sess->fd = -1;
break;
}
if (err == SSL_ERROR_WANT_READ) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() SSL_connect() wants to read\n");
sess->state = GG_STATE_TLS_NEGOTIATION;
sess->check = GG_CHECK_READ;
sess->timeout = GG_DEFAULT_TIMEOUT;
break;
} else if (err == SSL_ERROR_WANT_WRITE) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() SSL_connect() wants to write\n");
sess->state = GG_STATE_TLS_NEGOTIATION;
sess->check = GG_CHECK_WRITE;
sess->timeout = GG_DEFAULT_TIMEOUT;
break;
} else {
char buf[1024];
ERR_error_string_n(ERR_get_error(), buf, sizeof(buf));
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() SSL_connect() bailed out: %s\n", buf);
e->type = GG_EVENT_CONN_FAILED;
e->event.failure = GG_FAILURE_TLS;
sess->state = GG_STATE_IDLE;
close(sess->fd);
sess->fd = -1;
break;
}
}
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() TLS negotiation succeded:\n// cipher: %s\n", SSL_get_cipher_name(sess->ssl));
peer = SSL_get_peer_certificate(sess->ssl);
if (!peer)
gg_debug(GG_DEBUG_MISC, "// WARNING! unable to get peer certificate!\n");
else {
char buf[1024];
X509_NAME_oneline(X509_get_subject_name(peer), buf, sizeof(buf));
gg_debug(GG_DEBUG_MISC, "// cert subject: %s\n", buf);
X509_NAME_oneline(X509_get_issuer_name(peer), buf, sizeof(buf));
gg_debug(GG_DEBUG_MISC, "// cert issuer: %s\n", buf);
}
sess->state = GG_STATE_READING_KEY;
sess->check = GG_CHECK_READ;
sess->timeout = GG_DEFAULT_TIMEOUT;
break;
}
#endif
case GG_STATE_READING_KEY:
{
struct gg_header *h;
struct gg_welcome *w;
struct gg_login60 l;
unsigned int hash;
unsigned char *password = sess->password;
int ret;
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() GG_STATE_READING_KEY\n");
memset(&l, 0, sizeof(l));
l.dunno2 = 0xbe;
/* XXX bardzo, bardzo, bardzo g<>upi pomys<79> na pozbycie
* si<73> tekstu wrzucanego przez proxy. */
if (sess->proxy_addr && sess->proxy_port) {
char buf[100];
strcpy(buf, "");
gg_read_line(sess->fd, buf, sizeof(buf) - 1);
gg_chomp(buf);
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() proxy response:\n// %s\n", buf);
while (strcmp(buf, "")) {
gg_read_line(sess->fd, buf, sizeof(buf) - 1);
gg_chomp(buf);
if (strcmp(buf, ""))
gg_debug(GG_DEBUG_MISC, "// %s\n", buf);
}
/* XXX niech czeka jeszcze raz w tej samej
* fazie. g<>upio, ale dzia<69>a. */
sess->proxy_port = 0;
break;
}
/* czytaj pierwszy pakiet. */
if (!(h = gg_recv_packet(sess))) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() didn't receive packet (errno=%d, %s)\n", errno, strerror(errno));
e->type = GG_EVENT_CONN_FAILED;
e->event.failure = GG_FAILURE_READING;
sess->state = GG_STATE_IDLE;
errno2 = errno;
close(sess->fd);
errno = errno2;
sess->fd = -1;
break;
}
if (h->type != GG_WELCOME) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() invalid packet received\n");
free(h);
close(sess->fd);
sess->fd = -1;
errno = EINVAL;
e->type = GG_EVENT_CONN_FAILED;
e->event.failure = GG_FAILURE_INVALID;
sess->state = GG_STATE_IDLE;
break;
}
w = (struct gg_welcome*) ((char*) h + sizeof(struct gg_header));
w->key = gg_fix32(w->key);
hash = gg_login_hash(password, w->key);
gg_debug(GG_DEBUG_DUMP, "// gg_watch_fd() challenge %.4x --> hash %.8x\n", w->key, hash);
free(h);
free(sess->password);
sess->password = NULL;
{
struct in_addr dcc_ip;
dcc_ip.s_addr = gg_dcc_ip;
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() gg_dcc_ip = %s\n", inet_ntoa(dcc_ip));
}
if (gg_dcc_ip == (unsigned long) inet_addr("255.255.255.255")) {
struct sockaddr_in sin;
int sin_len = sizeof(sin);
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() detecting address\n");
if (!getsockname(sess->fd, (struct sockaddr*) &sin, &sin_len)) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() detected address to %s\n", inet_ntoa(sin.sin_addr));
l.local_ip = sin.sin_addr.s_addr;
} else {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() unable to detect address\n");
l.local_ip = 0;
}
} else
l.local_ip = gg_dcc_ip;
l.uin = gg_fix32(sess->uin);
l.hash = gg_fix32(hash);
l.status = gg_fix32(sess->initial_status ? sess->initial_status : GG_STATUS_AVAIL);
l.version = gg_fix32(sess->protocol_version);
l.local_port = gg_fix16(gg_dcc_port);
l.image_size = sess->image_size;
if (sess->external_addr && sess->external_port > 1023) {
l.external_ip = sess->external_addr;
l.external_port = gg_fix16(sess->external_port);
}
gg_debug(GG_DEBUG_TRAFFIC, "// gg_watch_fd() sending GG_LOGIN60 packet\n");
ret = gg_send_packet(sess, GG_LOGIN60, &l, sizeof(l), sess->initial_descr, (sess->initial_descr) ? strlen(sess->initial_descr) : 0, NULL);
free(sess->initial_descr);
sess->initial_descr = NULL;
if (ret == -1) {
gg_debug(GG_DEBUG_TRAFFIC, "// gg_watch_fd() sending packet failed. (errno=%d, %s)\n", errno, strerror(errno));
errno2 = errno;
close(sess->fd);
errno = errno2;
sess->fd = -1;
e->type = GG_EVENT_CONN_FAILED;
e->event.failure = GG_FAILURE_WRITING;
sess->state = GG_STATE_IDLE;
break;
}
sess->state = GG_STATE_READING_REPLY;
break;
}
case GG_STATE_READING_REPLY:
{
struct gg_header *h;
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() GG_STATE_READING_REPLY\n");
if (!(h = gg_recv_packet(sess))) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() didn't receive packet (errno=%d, %s)\n", errno, strerror(errno));
e->type = GG_EVENT_CONN_FAILED;
e->event.failure = GG_FAILURE_READING;
sess->state = GG_STATE_IDLE;
errno2 = errno;
close(sess->fd);
errno = errno2;
sess->fd = -1;
break;
}
if (h->type == GG_LOGIN_OK || h->type == GG_NEED_EMAIL) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() login succeded\n");
e->type = GG_EVENT_CONN_SUCCESS;
sess->state = GG_STATE_CONNECTED;
sess->timeout = -1;
sess->status = (sess->initial_status) ? sess->initial_status : GG_STATUS_AVAIL;
free(h);
break;
}
if (h->type == GG_LOGIN_FAILED) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() login failed\n");
e->event.failure = GG_FAILURE_PASSWORD;
errno = EACCES;
} else if (h->type == GG_DISCONNECTING) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() too many incorrect password attempts\n");
e->event.failure = GG_FAILURE_INTRUDER;
errno = EACCES;
} else {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() invalid packet\n");
e->event.failure = GG_FAILURE_INVALID;
errno = EINVAL;
}
e->type = GG_EVENT_CONN_FAILED;
sess->state = GG_STATE_IDLE;
errno2 = errno;
close(sess->fd);
errno = errno2;
sess->fd = -1;
free(h);
break;
}
case GG_STATE_CONNECTED:
{
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() GG_STATE_CONNECTED\n");
sess->last_event = time(NULL);
if ((res = gg_watch_fd_connected(sess, e)) == -1) {
gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() watch_fd_connected failed (errno=%d, %s)\n", errno, strerror(errno));
if (errno == EAGAIN) {
e->type = GG_EVENT_NONE;
res = 0;
} else
res = -1;
}
break;
}
}
done:
if (res == -1) {
free(e);
e = NULL;
}
return e;
fail_connecting:
if (sess->fd != -1) {
errno2 = errno;
close(sess->fd);
errno = errno2;
sess->fd = -1;
}
e->type = GG_EVENT_CONN_FAILED;
e->event.failure = GG_FAILURE_CONNECTING;
sess->state = GG_STATE_IDLE;
goto done;
fail_resolving:
e->type = GG_EVENT_CONN_FAILED;
e->event.failure = GG_FAILURE_RESOLVING;
sess->state = GG_STATE_IDLE;
goto done;
fail_unavailable:
e->type = GG_EVENT_CONN_FAILED;
e->event.failure = GG_FAILURE_UNAVAILABLE;
sess->state = GG_STATE_IDLE;
goto done;
}
/*
* Local variables:
* c-indentation-style: k&r
* c-basic-offset: 8
* indent-tabs-mode: notnil
* End:
*
* vim: shiftwidth=8:
*/
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