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-rw-r--r--src/OSSupport/Network.cpp30
1 files changed, 24 insertions, 6 deletions
diff --git a/src/OSSupport/Network.cpp b/src/OSSupport/Network.cpp
index bee5bc09f..b916fd804 100644
--- a/src/OSSupport/Network.cpp
+++ b/src/OSSupport/Network.cpp
@@ -823,6 +823,8 @@ bool cServerHandleImpl::Listen(UInt16 a_Port)
if (!IsValidSocket(MainSock))
{
// Failed to create IPv6 socket, create an IPv4 one instead:
+ int err = EVUTIL_SOCKET_ERROR();
+ LOGD("Failed to create IPv6 MainSock: %d (%s)", err, evutil_socket_error_to_string(err));
MainSock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (!IsValidSocket(MainSock))
{
@@ -850,9 +852,12 @@ bool cServerHandleImpl::Listen(UInt16 a_Port)
UInt32 Zero = 0;
#ifdef _WIN32
// WinXP doesn't support this feature, so if the setting fails, create another socket later on:
- NeedsTwoSockets = (
- (setsockopt(MainSock, IPPROTO_IPV6, IPV6_V6ONLY, reinterpret_cast<const char *>(&Zero), sizeof(Zero)) == SOCKET_ERROR) &&
- (EVUTIL_SOCKET_ERROR() == WSAENOPROTOOPT)
+ int res = setsockopt(MainSock, IPPROTO_IPV6, IPV6_V6ONLY, reinterpret_cast<const char *>(&Zero), sizeof(Zero));
+ int err = EVUTIL_SOCKET_ERROR();
+ NeedsTwoSockets = ((res == SOCKET_ERROR) && (err == WSAENOPROTOOPT));
+ LOGD("setsockopt(IPV6_V6ONLY) returned %d, err is %d (%s). %s",
+ res, err, evutil_socket_error_to_string(err),
+ NeedsTwoSockets ? "Second socket will be created" : "Second socket not needed"
);
#else
setsockopt(MainSock, IPPROTO_IPV6, IPV6_V6ONLY, reinterpret_cast<const char *>(&Zero), sizeof(Zero));
@@ -890,11 +895,24 @@ bool cServerHandleImpl::Listen(UInt16 a_Port)
// If a secondary socket is required (WinXP dual-stack), create it here:
if (NeedsTwoSockets)
{
+ LOGD("Creating a second socket for IPv4");
evutil_socket_t SecondSock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
- if (!IsValidSocket(SecondSock))
+ if (IsValidSocket(SecondSock))
{
- evutil_make_socket_nonblocking(SecondSock);
- m_SecondaryConnListener = evconnlistener_new(cNetworkSingleton::Get().m_EventBase, Callback, this, LEV_OPT_CLOSE_ON_FREE | LEV_OPT_REUSEABLE, 0, SecondSock);
+ if (evutil_make_socket_nonblocking(SecondSock) == 0)
+ {
+ m_SecondaryConnListener = evconnlistener_new(cNetworkSingleton::Get().m_EventBase, Callback, this, LEV_OPT_CLOSE_ON_FREE | LEV_OPT_REUSEABLE, 0, SecondSock);
+ }
+ else
+ {
+ int err = EVUTIL_SOCKET_ERROR();
+ LOGD("evutil_make_socket_nonblocking() failed: %d, %s", err, evutil_socket_error_to_string(err));
+ }
+ }
+ else
+ {
+ int err = EVUTIL_SOCKET_ERROR();
+ LOGD("socket(AF_INET, ...) failed: %d, %s", err, evutil_socket_error_to_string(err));
}
}
m_IsListening = true;