static CURL *
createEasy (tr_session * s, struct tr_web * web, struct tr_web_task * task)
{
bool is_default_value;
const tr_address * addr;
CURL * e = task->curl_easy = curl_easy_init ();
task->timeout_secs = getTimeoutFromURL (task);
curl_easy_setopt (e, CURLOPT_AUTOREFERER, 1L);
curl_easy_setopt (e, CURLOPT_ENCODING, "gzip;q=1.0, deflate, identity");
curl_easy_setopt (e, CURLOPT_FOLLOWLOCATION, 1L);
curl_easy_setopt (e, CURLOPT_MAXREDIRS, -1L);
curl_easy_setopt (e, CURLOPT_NOSIGNAL, 1L);
curl_easy_setopt (e, CURLOPT_PRIVATE, task);
#ifdef USE_LIBCURL_SOCKOPT
curl_easy_setopt (e, CURLOPT_SOCKOPTFUNCTION, sockoptfunction);
curl_easy_setopt (e, CURLOPT_SOCKOPTDATA, task);
#endif
if (web->curl_ssl_verify)
{
curl_easy_setopt (e, CURLOPT_CAINFO, web->curl_ca_bundle);
}
else
{
curl_easy_setopt (e, CURLOPT_SSL_VERIFYHOST, 0L);
curl_easy_setopt (e, CURLOPT_SSL_VERIFYPEER, 0L);
}
curl_easy_setopt (e, CURLOPT_TIMEOUT, task->timeout_secs);
curl_easy_setopt (e, CURLOPT_URL, task->url);
curl_easy_setopt (e, CURLOPT_USERAGENT, TR_NAME "/" SHORT_VERSION_STRING);
curl_easy_setopt (e, CURLOPT_VERBOSE, (long)(web->curl_verbose?1:0));
curl_easy_setopt (e, CURLOPT_WRITEDATA, task);
curl_easy_setopt (e, CURLOPT_WRITEFUNCTION, writeFunc);
if (((addr = tr_sessionGetPublicAddress (s, TR_AF_INET, &is_default_value))) && !is_default_value)
curl_easy_setopt (e, CURLOPT_INTERFACE, tr_address_to_string (addr));
else if (((addr = tr_sessionGetPublicAddress (s, TR_AF_INET6, &is_default_value))) && !is_default_value)
curl_easy_setopt (e, CURLOPT_INTERFACE, tr_address_to_string (addr));
if (task->cookies != NULL)
curl_easy_setopt (e, CURLOPT_COOKIE, task->cookies);
if (web->cookie_filename != NULL)
curl_easy_setopt (e, CURLOPT_COOKIEFILE, web->cookie_filename);
if (task->range != NULL)
{
curl_easy_setopt (e, CURLOPT_RANGE, task->range);
/* don't bother asking the server to compress webseed fragments */
curl_easy_setopt (e, CURLOPT_ENCODING, "identity");
}
return e;
}
static tr_socket_t tr_netBindTCPImpl(tr_address const* addr, tr_port port, bool suppressMsgs, int* errOut)
{
TR_ASSERT(tr_address_is_valid(addr));
static int const domains[NUM_TR_AF_INET_TYPES] = { AF_INET, AF_INET6 };
struct sockaddr_storage sock;
tr_socket_t fd;
int addrlen;
int optval;
fd = socket(domains[addr->type], SOCK_STREAM, 0);
if (fd == TR_BAD_SOCKET)
{
*errOut = sockerrno;
return TR_BAD_SOCKET;
}
if (evutil_make_socket_nonblocking(fd) == -1)
{
*errOut = sockerrno;
tr_netCloseSocket(fd);
return TR_BAD_SOCKET;
}
optval = 1;
setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, (void const*)&optval, sizeof(optval));
setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void const*)&optval, sizeof(optval));
#ifdef IPV6_V6ONLY
if (addr->type == TR_AF_INET6)
{
if (setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, (void const*)&optval, sizeof(optval)) == -1)
{
if (sockerrno != ENOPROTOOPT) /* if the kernel doesn't support it, ignore it */
{
*errOut = sockerrno;
tr_netCloseSocket(fd);
return TR_BAD_SOCKET;
}
}
}
#endif
addrlen = setup_sockaddr(addr, htons(port), &sock);
if (bind(fd, (struct sockaddr*)&sock, addrlen) == -1)
{
int const err = sockerrno;
if (!suppressMsgs)
{
char const* fmt;
char const* hint;
char err_buf[512];
if (err == EADDRINUSE)
{
hint = _("Is another copy of Transmission already running?");
}
else
{
hint = NULL;
}
if (hint == NULL)
{
fmt = _("Couldn't bind port %d on %s: %s");
}
else
{
fmt = _("Couldn't bind port %d on %s: %s (%s)");
}
tr_logAddError(fmt, port, tr_address_to_string(addr), tr_net_strerror(err_buf, sizeof(err_buf), err), hint);
}
tr_netCloseSocket(fd);
*errOut = err;
return TR_BAD_SOCKET;
}
if (!suppressMsgs)
{
tr_logAddDebug("Bound socket %" PRIdMAX " to port %d on %s", (intmax_t)fd, port, tr_address_to_string(addr));
}
#ifdef TCP_FASTOPEN
#ifndef SOL_TCP
#define SOL_TCP IPPROTO_TCP
#endif
optval = 5;
setsockopt(fd, SOL_TCP, TCP_FASTOPEN, (void const*)&optval, sizeof(optval));
#endif
if (listen(fd, 128) == -1)
{
*errOut = sockerrno;
tr_netCloseSocket(fd);
return TR_BAD_SOCKET;
}
return fd;
}
struct tr_peer_socket tr_netOpenPeerSocket(tr_session* session, tr_address const* addr, tr_port port, bool clientIsSeed)
{
TR_ASSERT(tr_address_is_valid(addr));
struct tr_peer_socket ret = TR_PEER_SOCKET_INIT;
static int const domains[NUM_TR_AF_INET_TYPES] = { AF_INET, AF_INET6 };
tr_socket_t s;
struct sockaddr_storage sock;
socklen_t addrlen;
tr_address const* source_addr;
socklen_t sourcelen;
struct sockaddr_storage source_sock;
char err_buf[512];
if (!tr_address_is_valid_for_peers(addr, port))
{
return ret;
}
s = tr_fdSocketCreate(session, domains[addr->type], SOCK_STREAM);
if (s == TR_BAD_SOCKET)
{
return ret;
}
/* seeds don't need much of a read buffer... */
if (clientIsSeed)
{
int n = 8192;
if (setsockopt(s, SOL_SOCKET, SO_RCVBUF, (void const*)&n, sizeof(n)) == -1)
{
tr_logAddInfo("Unable to set SO_RCVBUF on socket %" PRIdMAX ": %s", (intmax_t)s,
tr_net_strerror(err_buf, sizeof(err_buf), sockerrno));
}
}
if (evutil_make_socket_nonblocking(s) == -1)
{
tr_netClose(session, s);
return ret;
}
addrlen = setup_sockaddr(addr, port, &sock);
/* set source address */
source_addr = tr_sessionGetPublicAddress(session, addr->type, NULL);
TR_ASSERT(source_addr != NULL);
sourcelen = setup_sockaddr(source_addr, 0, &source_sock);
if (bind(s, (struct sockaddr*)&source_sock, sourcelen) == -1)
{
tr_logAddError(_("Couldn't set source address %s on %" PRIdMAX ": %s"), tr_address_to_string(source_addr), (intmax_t)s,
tr_net_strerror(err_buf, sizeof(err_buf), sockerrno));
tr_netClose(session, s);
return ret;
}
if (connect(s, (struct sockaddr*)&sock, addrlen) == -1 &&
#ifdef _WIN32
sockerrno != WSAEWOULDBLOCK &&
#endif
sockerrno != EINPROGRESS)
{
int const tmperrno = sockerrno;
if ((tmperrno != ENETUNREACH && tmperrno != EHOSTUNREACH) || addr->type == TR_AF_INET)
{
tr_logAddError(_("Couldn't connect socket %" PRIdMAX " to %s, port %d (errno %d - %s)"), (intmax_t)s,
tr_address_to_string(addr), (int)ntohs(port), tmperrno, tr_net_strerror(err_buf, sizeof(err_buf), tmperrno));
}
tr_netClose(session, s);
}
else
{
ret = tr_peer_socket_tcp_create(s);
}
tr_logAddDeep(__FILE__, __LINE__, NULL, "New OUTGOING connection %" PRIdMAX " (%s)", (intmax_t)s,
tr_peerIoAddrStr(addr, port));
return ret;
}
