diff options
Diffstat (limited to 'libgo/go/net/ipsock_posix.go')
-rw-r--r-- | libgo/go/net/ipsock_posix.go | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/libgo/go/net/ipsock_posix.go b/libgo/go/net/ipsock_posix.go index 3a059f516bc..4da18a5061a 100644 --- a/libgo/go/net/ipsock_posix.go +++ b/libgo/go/net/ipsock_posix.go @@ -53,13 +53,13 @@ func probeIPv6Stack() (supportsIPv6, supportsIPv4map bool) { } // favoriteAddrFamily returns the appropriate address family to -// the given net, raddr, laddr and mode. At first it figures +// the given net, laddr, raddr and mode. At first it figures // address family out from the net. If mode indicates "listen" // and laddr.(type).IP is nil, it assumes that the user wants to // make a passive connection with wildcard address family, both // INET and INET6, and wildcard address. Otherwise guess: if the // addresses are IPv4 then returns INET, or else returns INET6. -func favoriteAddrFamily(net string, raddr, laddr sockaddr, mode string) int { +func favoriteAddrFamily(net string, laddr, raddr sockaddr, mode string) int { switch net[len(net)-1] { case '4': return syscall.AF_INET @@ -68,17 +68,20 @@ func favoriteAddrFamily(net string, raddr, laddr sockaddr, mode string) int { } if mode == "listen" { + // Note that OpenBSD allows neither "net.inet6.ip6.v6only" + // change nor IPPROTO_IPV6 level IPV6_V6ONLY socket option + // setting. switch a := laddr.(type) { case *TCPAddr: - if a.IP == nil && supportsIPv6 { + if a.IP == nil && supportsIPv6 && supportsIPv4map { return syscall.AF_INET6 } case *UDPAddr: - if a.IP == nil && supportsIPv6 { + if a.IP == nil && supportsIPv6 && supportsIPv4map { return syscall.AF_INET6 } case *IPAddr: - if a.IP == nil && supportsIPv6 { + if a.IP == nil && supportsIPv6 && supportsIPv4map { return syscall.AF_INET6 } } @@ -104,7 +107,7 @@ type sockaddr interface { func internetSocket(net string, laddr, raddr sockaddr, sotype, proto int, mode string, toAddr func(syscall.Sockaddr) Addr) (fd *netFD, err error) { var oserr error var la, ra syscall.Sockaddr - family := favoriteAddrFamily(net, raddr, laddr, mode) + family := favoriteAddrFamily(net, laddr, raddr, mode) if laddr != nil { if la, oserr = laddr.sockaddr(family); oserr != nil { goto Error |