1 // Copyright 2017 The Go Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style
3 // license that can be found in the LICENSE file.
14 func probeProtocolStack() int {
15 switch runtime.GOARCH {
20 return int(unsafe.Sizeof(p))
24 //go:cgo_import_dynamic libc___xnet_getsockopt __xnet_getsockopt "libsocket.so"
25 //go:cgo_import_dynamic libc_setsockopt setsockopt "libsocket.so"
26 //go:cgo_import_dynamic libc___xnet_recvmsg __xnet_recvmsg "libsocket.so"
27 //go:cgo_import_dynamic libc___xnet_sendmsg __xnet_sendmsg "libsocket.so"
29 //go:linkname procGetsockopt libc___xnet_getsockopt
30 //go:linkname procSetsockopt libc_setsockopt
31 //go:linkname procRecvmsg libc___xnet_recvmsg
32 //go:linkname procSendmsg libc___xnet_sendmsg
35 procGetsockopt uintptr
36 procSetsockopt uintptr
41 func sysvicall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (uintptr, uintptr, syscall.Errno)
42 func rawSysvicall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (uintptr, uintptr, syscall.Errno)
44 func getsockopt(s uintptr, level, name int, b []byte) (int, error) {
46 _, _, errno := sysvicall6(uintptr(unsafe.Pointer(&procGetsockopt)), 5, s, uintptr(level), uintptr(name), uintptr(unsafe.Pointer(&b[0])), uintptr(unsafe.Pointer(&l)), 0)
47 return int(l), errnoErr(errno)
50 func setsockopt(s uintptr, level, name int, b []byte) error {
51 _, _, errno := sysvicall6(uintptr(unsafe.Pointer(&procSetsockopt)), 5, s, uintptr(level), uintptr(name), uintptr(unsafe.Pointer(&b[0])), uintptr(len(b)), 0)
52 return errnoErr(errno)
55 func recvmsg(s uintptr, h *msghdr, flags int) (int, error) {
56 n, _, errno := sysvicall6(uintptr(unsafe.Pointer(&procRecvmsg)), 3, s, uintptr(unsafe.Pointer(h)), uintptr(flags), 0, 0, 0)
57 return int(n), errnoErr(errno)
60 func sendmsg(s uintptr, h *msghdr, flags int) (int, error) {
61 n, _, errno := sysvicall6(uintptr(unsafe.Pointer(&procSendmsg)), 3, s, uintptr(unsafe.Pointer(h)), uintptr(flags), 0, 0, 0)
62 return int(n), errnoErr(errno)
65 func recvmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
66 return 0, errors.New("not implemented")
69 func sendmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) {
70 return 0, errors.New("not implemented")