diff options
Diffstat (limited to 'conn')
| -rw-r--r-- | conn/bind_std.go | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/conn/bind_std.go b/conn/bind_std.go index 73946b4..a511341 100644 --- a/conn/bind_std.go +++ b/conn/bind_std.go @@ -91,30 +91,28 @@ func (bind *StdNetBind) Open(uport uint16) (uint16, error) { again: port := int(uport) + var ipv4, ipv6 *net.UDPConn - bind.ipv4, port, err = listenNet("udp4", port) + ipv4, port, err = listenNet("udp4", port) if err != nil && !errors.Is(err, syscall.EAFNOSUPPORT) { - bind.ipv4 = nil return 0, err } - bind.ipv6, port, err = listenNet("udp6", port) - if uport == 0 && err != nil && errors.Is(err, syscall.EADDRINUSE) && tries < 100 { - bind.ipv4.Close() - bind.ipv4 = nil - bind.ipv6 = nil + ipv6, port, err = listenNet("udp6", port) + if uport == 0 && errors.Is(err, syscall.EADDRINUSE) && tries < 100 { + ipv4.Close() tries++ goto again } if err != nil && !errors.Is(err, syscall.EAFNOSUPPORT) { - bind.ipv4.Close() - bind.ipv4 = nil - bind.ipv6 = nil + ipv4.Close() return 0, err } - if bind.ipv4 == nil && bind.ipv6 == nil { + if ipv4 == nil && ipv6 == nil { return 0, syscall.EAFNOSUPPORT } + bind.ipv4 = ipv4 + bind.ipv6 = ipv6 return uint16(port), nil } |