diff options
Diffstat (limited to 'vendor/github.com/miekg/dns/udp_linux.go')
| -rw-r--r-- | vendor/github.com/miekg/dns/udp_linux.go | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/vendor/github.com/miekg/dns/udp_linux.go b/vendor/github.com/miekg/dns/udp_linux.go index c62d21881..142a80073 100644 --- a/vendor/github.com/miekg/dns/udp_linux.go +++ b/vendor/github.com/miekg/dns/udp_linux.go @@ -22,14 +22,17 @@ func setUDPSocketOptions4(conn *net.UDPConn) error { return err } if err := syscall.SetsockoptInt(int(file.Fd()), syscall.IPPROTO_IP, syscall.IP_PKTINFO, 1); err != nil { + file.Close() return err } // Calling File() above results in the connection becoming blocking, we must fix that. // See https://github.com/miekg/dns/issues/279 err = syscall.SetNonblock(int(file.Fd()), true) if err != nil { + file.Close() return err } + file.Close() return nil } @@ -40,12 +43,15 @@ func setUDPSocketOptions6(conn *net.UDPConn) error { return err } if err := syscall.SetsockoptInt(int(file.Fd()), syscall.IPPROTO_IPV6, syscall.IPV6_RECVPKTINFO, 1); err != nil { + file.Close() return err } err = syscall.SetNonblock(int(file.Fd()), true) if err != nil { + file.Close() return err } + file.Close() return nil } @@ -59,8 +65,10 @@ func getUDPSocketOptions6Only(conn *net.UDPConn) (bool, error) { // dual stack. See http://stackoverflow.com/questions/1618240/how-to-support-both-ipv4-and-ipv6-connections v6only, err := syscall.GetsockoptInt(int(file.Fd()), syscall.IPPROTO_IPV6, syscall.IPV6_V6ONLY) if err != nil { + file.Close() return false, err } + file.Close() return v6only == 1, nil } @@ -69,5 +77,6 @@ func getUDPSocketName(conn *net.UDPConn) (syscall.Sockaddr, error) { if err != nil { return nil, err } + defer file.Close() return syscall.Getsockname(int(file.Fd())) } |