re PR go/69966 (libgo: Port syscall.SetsockoptUcred from golang)

	PR go/69966
    syscall: Add new Getsockopt functions.
    
    Add GetsockoptICMPv6Filter, GetsockoptIPv6MTUInfo, GetsockoptUcred as
    appropriate.  These functions exist in the master library.
    
    For GCC PR 69966.

    Reviewed-on: https://go-review.googlesource.com/19960

From-SVN: r233747

1 files changed, 7 insertions, 0 deletions

diff --git a/libgo/go/syscall/socket_bsd.go b/libgo/go/syscall/socket_bsd.go
index 72d7180..c8da102 100644
--- a/libgo/go/syscall/socket_bsd.go
+++ b/libgo/go/syscall/socket_bsd.go
@@ -80,3 +80,10 @@ func BindToDevice(fd int, device string) (err error) {
 func anyToSockaddrOS(rsa *RawSockaddrAny) (Sockaddr, error) {
 	return nil, EAFNOSUPPORT
 }
+
+func GetsockoptIPv6MTUInfo(fd, level, opt int) (*IPv6MTUInfo, error) {
+	var value IPv6MTUInfo
+	vallen := Socklen_t(SizeofIPv6MTUInfo)
+	err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen)
+	return &value, err
+}