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listen system only when bind addr not specified

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Darien Raymond 2019-01-12 09:12:48 +01:00
parent 40796b9f9c
commit ef739c2127
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GPG Key ID: 7251FFA14BB18169
1 changed files with 6 additions and 2 deletions
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8
transport/internet/system_dialer.go
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@ -39,8 +39,12 @@ func resolveSrcAddr(network net.Network, src net.Address) net.Addr {
}
}
func hasBindAddr(sockopt *SocketConfig) bool {
return len(sockopt.BindAddress) > 0 && sockopt.BindPort > 0
}
func (d *DefaultSystemDialer) Dial(ctx context.Context, src net.Address, dest net.Destination, sockopt *SocketConfig) (net.Conn, error) {
if dest.Network == net.Network_UDP {
if dest.Network == net.Network_UDP && !hasBindAddr(sockopt) {
srcAddr := resolveSrcAddr(net.Network_UDP, src)
if srcAddr == nil {
srcAddr = &net.UDPAddr{
@ -75,7 +79,7 @@ func (d *DefaultSystemDialer) Dial(ctx context.Context, src net.Address, dest ne
if err := applyOutboundSocketOptions(network, address, fd, sockopt); err != nil {
newError("failed to apply socket options").Base(err).WriteToLog(session.ExportIDToError(ctx))
}
if dest.Network == net.Network_UDP && len(sockopt.BindAddress) > 0 && sockopt.BindPort > 0 {
if dest.Network == net.Network_UDP && hasBindAddr(sockopt) {
if err := bindAddr(fd, sockopt.BindAddress, sockopt.BindPort); err != nil {
newError("failed to bind source address to ", sockopt.BindAddress).Base(err).WriteToLog(session.ExportIDToError(ctx))
}