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

3 files changed, 28 insertions, 0 deletions

diff --git a/libgo/go/syscall/socket.go b/libgo/go/syscall/socket.go
index d96a717303b..93bbc389f4d 100644
--- a/libgo/go/syscall/socket.go
+++ b/libgo/go/syscall/socket.go
@@ -251,6 +251,13 @@ func GetsockoptIPv6Mreq(fd, level, opt int) (*IPv6Mreq, error) {
 	return &value, err
 }
 
+func GetsockoptICMPv6Filter(fd, level, opt int) (*ICMPv6Filter, error) {
+	var value ICMPv6Filter
+	vallen := Socklen_t(SizeofICMPv6Filter)
+	err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen)
+	return &value, err
+}
+
 //sys	setsockopt(s int, level int, name int, val unsafe.Pointer, vallen Socklen_t) (err error)
 //setsockopt(s _C_int, level _C_int, optname _C_int, val *byte, vallen Socklen_t) _C_int
 
diff --git a/libgo/go/syscall/socket_bsd.go b/libgo/go/syscall/socket_bsd.go
index 72d7180b6ed..c8da1022218 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
+}
diff --git a/libgo/go/syscall/socket_linux.go b/libgo/go/syscall/socket_linux.go
index 5064e771221..3c3098e0564 100644
--- a/libgo/go/syscall/socket_linux.go
+++ b/libgo/go/syscall/socket_linux.go
@@ -168,6 +168,20 @@ 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
+}
+
+func GetsockoptUcred(fd, level, opt int) (*Ucred, error) {
+	var value Ucred
+	vallen := Socklen_t(SizeofUcred)
+	err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen)
+	return &value, err
+}
+
 //sysnb	EpollCreate(size int) (fd int, err error)
 //epoll_create(size _C_int) _C_int