--- a/src/protocols/qq/udp_proxy_s5.c Sat Aug 19 00:24:14 2006 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,369 +0,0 @@
-/**
- * The QQ2003C protocol plugin
- *
- * for gaim
- *
- * Copyright (C) 2004 Puzzlebird
- * Henry Ou <henry@linux.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include "debug.h"
-
-#include "udp_proxy_s5.h"
-
-extern gint /* defined in qq_proxy.c */
- _qq_fill_host(struct sockaddr_in *addr, const gchar * host, guint16 port);
-
-static void _qq_s5_canread_again(gpointer data, gint source, GaimInputCondition cond)
-{
- unsigned char buf[512];
- struct PHB *phb = data;
- struct sockaddr_in sin;
- int len, error;
-
- gaim_input_remove(phb->inpa);
- gaim_debug(GAIM_DEBUG_INFO, "socks5 proxy", "Able to read again.\n");
-
- len = read(source, buf, 10);
- if (len < 10) {
- gaim_debug(GAIM_DEBUG_WARNING, "socks5 proxy", "or not...\n");
- close(source);
-
- if (phb->account == NULL || gaim_account_get_connection(phb->account) != NULL) {
-
- phb->func(phb->data, source, NULL);
- }
-
- g_free(phb->host);
- g_free(phb);
- return;
- }
- if ((buf[0] != 0x05) || (buf[1] != 0x00)) {
- if ((buf[0] == 0x05) && (buf[1] < 0x09))
- gaim_debug(GAIM_DEBUG_ERROR, "socks5 proxy", "socks5 error: %x\n", buf[1]);
- else
- gaim_debug(GAIM_DEBUG_ERROR, "socks5 proxy", "Bad data.\n");
- close(source);
-
- if (phb->account == NULL || gaim_account_get_connection(phb->account) != NULL) {
-
- phb->func(phb->data, -1, NULL);
- }
-
- g_free(phb->host);
- g_free(phb);
- return;
- }
-
- sin.sin_family = AF_INET;
- memcpy(&sin.sin_addr.s_addr, buf + 4, 4);
- memcpy(&sin.sin_port, buf + 8, 2);
-
- if (connect(phb->udpsock, (struct sockaddr *) &sin, sizeof(struct sockaddr_in)) < 0) {
- gaim_debug(GAIM_DEBUG_INFO, "s5_canread_again", "connect failed: %s\n", strerror(errno));
- close(phb->udpsock);
- close(source);
- g_free(phb->host);
- g_free(phb);
- return;
- }
-
- error = ETIMEDOUT;
- gaim_debug(GAIM_DEBUG_INFO, "QQ", "Connect didn't block\n");
- len = sizeof(error);
- if (getsockopt(phb->udpsock, SOL_SOCKET, SO_ERROR, &error, &len) < 0) {
- gaim_debug(GAIM_DEBUG_ERROR, "QQ", "getsockopt failed.\n");
- close(phb->udpsock);
- return;
- }
- fcntl(phb->udpsock, F_SETFL, 0);
-
- if (phb->account == NULL || gaim_account_get_connection(phb->account) != NULL) {
- phb->func(phb->data, phb->udpsock, NULL);
- }
-
- g_free(phb->host);
- g_free(phb);
-}
-
-static void _qq_s5_sendconnect(gpointer data, gint source)
-{
- unsigned char buf[512];
- struct PHB *phb = data;
- struct sockaddr_in sin, ctlsin;
- int port, ctllen;
-
- gaim_debug(GAIM_DEBUG_INFO, "s5_sendconnect", "remote host is %s:%d\n", phb->host, phb->port);
-
- buf[0] = 0x05;
- buf[1] = 0x03; /* udp relay */
- buf[2] = 0x00; /* reserved */
- buf[3] = 0x01; /* address type -- ipv4 */
- memset(buf + 4, 0, 0x04);
-
- ctllen = sizeof(ctlsin);
- if (getsockname(source, (struct sockaddr *) &ctlsin, &ctllen) < 0) {
- gaim_debug(GAIM_DEBUG_INFO, "QQ", "getsockname: %s\n", strerror(errno));
- close(source);
- g_free(phb->host);
- g_free(phb);
- return;
- }
-
- phb->udpsock = socket(PF_INET, SOCK_DGRAM, 0);
- gaim_debug(GAIM_DEBUG_INFO, "s5_sendconnect", "UDP socket=%d\n", phb->udpsock);
- if (phb->udpsock < 0) {
- close(source);
- g_free(phb->host);
- g_free(phb);
- return;
- }
-
- fcntl(phb->udpsock, F_SETFL, O_NONBLOCK);
-
- port = ntohs(ctlsin.sin_port) + 1;
- while (1) {
- _qq_fill_host(&sin, "0.0.0.0", port);
- if (bind(phb->udpsock, (struct sockaddr *) &sin, sizeof(sin)) < 0) {
- port++;
- if (port > 65500) {
- close(source);
- g_free(phb->host);
- g_free(phb);
- return;
- }
- } else
- break;
- }
-
- memset(buf + 4, 0, 0x04);
- memcpy(buf + 8, &(sin.sin_port), 0x02);
-
- if (write(source, buf, 10) < 10) {
- close(source);
- gaim_debug(GAIM_DEBUG_INFO, "s5_sendconnect", "packet too small\n");
-
- if (phb->account == NULL || gaim_account_get_connection(phb->account) != NULL) {
- phb->func(phb->data, -1, NULL);
- }
-
- g_free(phb->host);
- g_free(phb);
- return;
- }
-
- phb->inpa = gaim_input_add(source, GAIM_INPUT_READ, _qq_s5_canread_again, phb);
-}
-
-static void _qq_s5_readauth(gpointer data, gint source, GaimInputCondition cond)
-{
- unsigned char buf[512];
- struct PHB *phb = data;
-
- gaim_input_remove(phb->inpa);
- gaim_debug(GAIM_DEBUG_INFO, "socks5 proxy", "Got auth response.\n");
-
- if (read(source, buf, 2) < 2) {
- close(source);
-
- if (phb->account == NULL || gaim_account_get_connection(phb->account) != NULL) {
-
- phb->func(phb->data, -1, NULL);
- }
-
- g_free(phb->host);
- g_free(phb);
- return;
- }
-
- if ((buf[0] != 0x01) || (buf[1] != 0x00)) {
- close(source);
-
- if (phb->account == NULL || gaim_account_get_connection(phb->account) != NULL) {
-
- phb->func(phb->data, -1, NULL);
- }
-
- g_free(phb->host);
- g_free(phb);
- return;
- }
-
- _qq_s5_sendconnect(phb, source);
-}
-
-static void _qq_s5_canread(gpointer data, gint source, GaimInputCondition cond)
-{
- unsigned char buf[512];
- struct PHB *phb;
- int ret;
-
- phb = data;
-
- gaim_input_remove(phb->inpa);
- gaim_debug(GAIM_DEBUG_INFO, "socks5 proxy", "Able to read.\n");
-
- ret = read(source, buf, 2);
- if (ret < 2) {
- gaim_debug(GAIM_DEBUG_INFO, "s5_canread", "packet smaller than 2 octet\n");
- close(source);
-
- if (phb->account == NULL || gaim_account_get_connection(phb->account) != NULL) {
-
- phb->func(phb->data, source, NULL);
- }
-
- g_free(phb->host);
- g_free(phb);
- return;
- }
-
- if ((buf[0] != 0x05) || (buf[1] == 0xff)) {
- gaim_debug(GAIM_DEBUG_INFO, "s5_canread", "unsupport\n");
- close(source);
-
- if (phb->account == NULL || gaim_account_get_connection(phb->account) != NULL) {
-
- phb->func(phb->data, -1, NULL);
- }
-
- g_free(phb->host);
- g_free(phb);
- return;
- }
-
- if (buf[1] == 0x02) {
- unsigned int i, j;
-
- i = strlen(gaim_proxy_info_get_username(phb->gpi));
- j = strlen(gaim_proxy_info_get_password(phb->gpi));
-
- buf[0] = 0x01; /* version 1 */
- buf[1] = i;
- memcpy(buf + 2, gaim_proxy_info_get_username(phb->gpi), i);
- buf[2 + i] = j;
- memcpy(buf + 2 + i + 1, gaim_proxy_info_get_password(phb->gpi), j);
-
- if (write(source, buf, 3 + i + j) < 3 + i + j) {
- close(source);
-
- if (phb->account == NULL || gaim_account_get_connection(phb->account) != NULL) {
-
- phb->func(phb->data, -1, NULL);
- }
-
- g_free(phb->host);
- g_free(phb);
- return;
- }
-
- phb->inpa = gaim_input_add(source, GAIM_INPUT_READ, _qq_s5_readauth, phb);
- } else {
- gaim_debug(GAIM_DEBUG_INFO, "s5_canread", "calling s5_sendconnect\n");
- _qq_s5_sendconnect(phb, source);
- }
-}
-
-static void _qq_s5_canwrite(gpointer data, gint source, GaimInputCondition cond)
-{
- unsigned char buf[512];
- int i;
- struct PHB *phb = data;
- unsigned int len;
- int error = ETIMEDOUT;
-
- gaim_debug(GAIM_DEBUG_INFO, "socks5 proxy", "Connected.\n");
-
- if (phb->inpa > 0)
- gaim_input_remove(phb->inpa);
-
- len = sizeof(error);
- if (getsockopt(source, SOL_SOCKET, SO_ERROR, &error, &len) < 0) {
- gaim_debug(GAIM_DEBUG_INFO, "getsockopt", "%s\n", strerror(errno));
- close(source);
- if (phb->account == NULL || gaim_account_get_connection(phb->account) != NULL) {
-
- phb->func(phb->data, -1, NULL);
- }
-
- g_free(phb->host);
- g_free(phb);
- return;
- }
- fcntl(source, F_SETFL, 0);
-
- i = 0;
- buf[0] = 0x05; /* SOCKS version 5 */
-
- if (gaim_proxy_info_get_username(phb->gpi) != NULL) {
- buf[1] = 0x02; /* two methods */
- buf[2] = 0x00; /* no authentication */
- buf[3] = 0x02; /* username/password authentication */
- i = 4;
- } else {
- buf[1] = 0x01;
- buf[2] = 0x00;
- i = 3;
- }
-
- if (write(source, buf, i) < i) {
- gaim_debug(GAIM_DEBUG_INFO, "write", "%s\n", strerror(errno));
- gaim_debug(GAIM_DEBUG_ERROR, "socks5 proxy", "Unable to write\n");
- close(source);
-
- if (phb->account == NULL || gaim_account_get_connection(phb->account) != NULL) {
-
- phb->func(phb->data, -1, NULL);
- }
-
- g_free(phb->host);
- g_free(phb);
- return;
- }
-
- phb->inpa = gaim_input_add(source, GAIM_INPUT_READ, _qq_s5_canread, phb);
-}
-
-gint qq_proxy_socks5(struct PHB *phb, struct sockaddr *addr, socklen_t addrlen)
-{
- gint fd;
- gaim_debug(GAIM_DEBUG_INFO, "QQ",
- "Connecting to %s:%d via %s:%d using SOCKS5\n",
- phb->host, phb->port, gaim_proxy_info_get_host(phb->gpi), gaim_proxy_info_get_port(phb->gpi));
-
- if ((fd = socket(addr->sa_family, SOCK_STREAM, 0)) < 0)
- return -1;
-
- gaim_debug(GAIM_DEBUG_INFO, "QQ", "proxy_sock5 return fd=%d\n", fd);
-
- fcntl(fd, F_SETFL, O_NONBLOCK);
- if (connect(fd, addr, addrlen) < 0) {
- if ((errno == EINPROGRESS) || (errno == EINTR)) {
- gaim_debug(GAIM_DEBUG_WARNING, "QQ", "Connect in asynchronous mode.\n");
- phb->inpa = gaim_input_add(fd, GAIM_INPUT_WRITE, _qq_s5_canwrite, phb);
- } else {
- close(fd);
- return -1;
- }
- } else {
- gaim_debug(GAIM_DEBUG_MISC, "QQ", "Connect in blocking mode.\n");
- fcntl(fd, F_SETFL, 0);
- _qq_s5_canwrite(phb, fd, GAIM_INPUT_WRITE);
- }
-
- return fd;
-}