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Merge pull request #115 from stanislas-m/feat/client-random-port

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Allow client to bind on a random port
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corrados 2020-04-20 16:54:48 +02:00 committed by GitHub
commit e305eac01c
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1 changed files with 26 additions and 14 deletions
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14
src/socket.cpp
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@ -53,6 +53,17 @@ void CSocket::Init ( const quint16 iPortNumber )
bool bSuccess;
if ( bIsClient )
{
if (iPortNumber == 0)
{
// If port number is 0, bind the client to a random available port.
UdpSocketInAddr.sin_port = htons ( 0 );
bSuccess = ( ::bind ( UdpSocket ,
(sockaddr*) &UdpSocketInAddr,
sizeof ( sockaddr_in ) ) == 0 );
}
else
{
// Per definition use the port number plus ten for the client to make
// it possible to run server and client on the same computer. If the
@ -73,10 +84,11 @@ void CSocket::Init ( const quint16 iPortNumber )
iClientPortIncrement++;
}
}
}
else
{
// for the server, only try the given port number and do not try out
// other port numbers to bind since it is imporatant that the server
// other port numbers to bind since it is important that the server
// gets the desired port number
UdpSocketInAddr.sin_port = htons ( iPortNumber );