| // Copyright 2016 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| package ipv6 |
| |
| import ( |
| "syscall" |
| "unsafe" |
| ) |
| |
| //go:cgo_import_dynamic libc___xnet_getsockopt __xnet_getsockopt "libsocket.so" |
| //go:cgo_import_dynamic libc_setsockopt setsockopt "libsocket.so" |
| |
| //go:linkname procGetsockopt libc___xnet_getsockopt |
| //go:linkname procSetsockopt libc_setsockopt |
| |
| var ( |
| procGetsockopt uintptr |
| procSetsockopt uintptr |
| ) |
| |
| func sysvicall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (uintptr, uintptr, syscall.Errno) |
| |
| func getsockopt(s uintptr, level, name int, v unsafe.Pointer, l *uint32) error { |
| _, _, errno := sysvicall6(uintptr(unsafe.Pointer(&procGetsockopt)), 5, s, uintptr(level), uintptr(name), uintptr(v), uintptr(unsafe.Pointer(l)), 0) |
| if errno != 0 { |
| return error(errno) |
| } |
| return nil |
| } |
| |
| func setsockopt(s uintptr, level, name int, v unsafe.Pointer, l uint32) error { |
| if _, _, errno := sysvicall6(uintptr(unsafe.Pointer(&procSetsockopt)), 5, s, uintptr(level), uintptr(name), uintptr(v), uintptr(l), 0); errno != 0 { |
| return error(errno) |
| } |
| return nil |
| } |