moonlight-stream/moonlight-common-c
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Use a valid port when calling connect() for local address detection

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BSDs (including Darwin) don't like using port 0.
This commit is contained in:
Cameron Gutman
2026-02-06 22:53:54 -06:00
parent 305993b013
commit 07c32c80f9
3 changed files with 12 additions and 6 deletions
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2
src/Connection.c
View File

@@ -381,7 +381,7 @@ int LiStartConnection(PSERVER_INFORMATION serverInfo, PSTREAM_CONFIGURATION stre
// Resolve LocalAddr by RemoteAddr.
{
SOCKADDR_LEN localAddrLen;
err = getLocalAddressByUdpConnect(&RemoteAddr, AddrLen, &LocalAddr, &localAddrLen);
err = getLocalAddressByUdpConnect(&RemoteAddr, AddrLen, RtspPortNumber, &LocalAddr, &localAddrLen);
if (err != 0) {
Limelog("failed to resolve local addr: %d\n", err);
ListenerCallbacks.stageFailed(STAGE_NAME_RESOLUTION, err);

10
src/PlatformSockets.c
View File

@@ -568,16 +568,22 @@ Exit:
return s;
}
int getLocalAddressByUdpConnect(const struct sockaddr_storage* targetAddr, SOCKADDR_LEN targetAddrLen,
int getLocalAddressByUdpConnect(const struct sockaddr_storage* targetAddr, SOCKADDR_LEN targetAddrLen, unsigned short targetPort,
struct sockaddr_storage* localAddr, SOCKADDR_LEN* localAddrLen) {
SOCKET udpSocket;
LC_SOCKADDR connAddr;
LC_ASSERT(targetPort != 0);
udpSocket = createSocket(targetAddr->ss_family, SOCK_DGRAM, IPPROTO_UDP, false);
if (udpSocket == INVALID_SOCKET) {
return LastSocketError();
}
if (connect(udpSocket, (struct sockaddr*)targetAddr, targetAddrLen) < 0) {
memcpy(&connAddr, targetAddr, targetAddrLen);
SET_PORT(&connAddr, RtspPortNumber);
if (connect(udpSocket, (struct sockaddr*)&connAddr, targetAddrLen) < 0) {
int err = LastSocketError();
Limelog("UDP connect() failed: %d\n", err);
closeSocket(udpSocket);

2
src/PlatformSockets.h
View File

@@ -107,7 +107,7 @@ void addrToUrlSafeString(struct sockaddr_storage* addr, char* string, size_t str
SOCKET createSocket(int addressFamily, int socketType, int protocol, bool nonBlocking);
SOCKET connectTcpSocket(struct sockaddr_storage* dstaddr, SOCKADDR_LEN addrlen, unsigned short port, int timeoutSec);
int getLocalAddressByUdpConnect(const struct sockaddr_storage* targetAddr, SOCKADDR_LEN targetAddrLen,
int getLocalAddressByUdpConnect(const struct sockaddr_storage* targetAddr, SOCKADDR_LEN targetAddrLen, unsigned short targetPort,
struct sockaddr_storage* localAddr, SOCKADDR_LEN* localAddrLen);
int sendMtuSafe(SOCKET s, char* buffer, int size);
SOCKET bindUdpSocket(int addressFamily, struct sockaddr_storage* localAddr, SOCKADDR_LEN addrLen, int bufferSize, int socketQosType);