syscall: reduce duplication between *bsd and linux

Part 3 of several.

* Linux has grown a SetsockoptByte.
* SetsockoptIPMreqn is handled directly by syscall_linux.go and syscall_freebsd.go.

R=golang-dev, mikioh.mikioh, r, bradfitz
CC=golang-dev
https://golang.org/cl/10775043

1 files changed, 0 insertions, 32 deletions

diff --git a/src/pkg/syscall/syscall_linux.go b/src/pkg/syscall/syscall_linux.go
index c0ddf3a8a7..b6d728e9f7 100644
--- a/src/pkg/syscall/syscall_linux.go
+++ b/src/pkg/syscall/syscall_linux.go
@@ -485,42 +485,10 @@ func GetsockoptUcred(fd, level, opt int) (*Ucred, error) {
 	return &value, err
 }
 
-func SetsockoptInt(fd, level, opt int, value int) (err error) {
-	var n = int32(value)
-	return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(&n)), 4)
-}
-
-func SetsockoptInet4Addr(fd, level, opt int, value [4]byte) (err error) {
-	return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(&value[0])), 4)
-}
-
-func SetsockoptTimeval(fd, level, opt int, tv *Timeval) (err error) {
-	return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(tv)), unsafe.Sizeof(*tv))
-}
-
-func SetsockoptLinger(fd, level, opt int, l *Linger) (err error) {
-	return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(l)), unsafe.Sizeof(*l))
-}
-
-func SetsockoptIPMreq(fd, level, opt int, mreq *IPMreq) (err error) {
-	return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(mreq)), unsafe.Sizeof(*mreq))
-}
-
 func SetsockoptIPMreqn(fd, level, opt int, mreq *IPMreqn) (err error) {
 	return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(mreq)), unsafe.Sizeof(*mreq))
 }
 
-func SetsockoptIPv6Mreq(fd, level, opt int, mreq *IPv6Mreq) (err error) {
-	return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(mreq)), unsafe.Sizeof(*mreq))
-}
-
-func SetsockoptICMPv6Filter(fd, level, opt int, filter *ICMPv6Filter) error {
-	return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(filter)), SizeofICMPv6Filter)
-}
-func SetsockoptString(fd, level, opt int, s string) (err error) {
-	return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(&[]byte(s)[0])), uintptr(len(s)))
-}
-
 func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from Sockaddr, err error) {
 	var msg Msghdr
 	var rsa RawSockaddrAny